feat: Add deep crawl capabilities to arun_many function

1. Make active_crawls into a dict instead of set and remove jobs array. Effective lookup and storage of active crawls and crawl control.
2. Put a lock on active_crawls, so similtanious push and pop by coroutines doesn't cause a race condition
3. Move the depth check logic outside the child link for loop, as source_url doesn't change in the loop.

.gitignore

@@ -232,26 +232,9 @@ plans/
 .codeiumignore
 todo/
 
-# Continue development files
-.continue/
-.continuerc.json
-continue.lock
-continue_core.log
-contextProviders/
-continue_workspace/
-.continue-cache/
-continue_config.json
+# windsurf rules
+.windsurfrules
 
-# Continue temporary files
-.continue-temp/
-.continue-logs/
-.continue-downloads/
 
-# Continue VS Code specific
-.vscode-continue/
-.vscode-continue-cache/
-
-.prompts/
-
-.llm.env
-.private/
+# windsurf rules
+.windsurfrules

CHANGELOG.md

@@ -5,136 +5,11 @@ All notable changes to Crawl4AI will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## Version 0.5.0 (2025-03-02)
-
-### Added
-
-- *(profiles)* Add BrowserProfiler class for dedicated browser profile management
-- *(cli)* Add interactive profile management to CLI with rich UI
-- *(profiles)* Add ability to crawl directly from profile management interface
-- *(browser)* Support identity-based browsing with persistent profiles
-- *(deep-crawling)* Add max_pages parameter to limit the number of pages crawled in all deep crawling strategies
-- *(deep-crawling)* Add score_threshold parameter to BFS and DFS strategies to filter URLs by score
-
-### Changed
-
-- *(browser)* Refactor profile management from ManagedBrowser to BrowserProfiler class
-- *(cli)* Enhance CLI with profile selection and status display for crawling
-- *(examples)* Update identity-based browsing example to use BrowserProfiler class
-- *(docs)* Update identity-based crawling documentation
-- *(docs)* Update deep crawling documentation with max_pages and score_threshold parameters
-- *(examples)* Add example demonstrating the use of max_pages and score_threshold parameters
-
-### Fixed
-
-- *(browser)* Fix profile detection and management on different platforms
-- *(cli)* Fix CLI command structure for better user experience
-- *(deep-crawling)* Improve BFS and DFS strategies to handle page count limits more efficiently
-
-
-## Version 0.5.0 (2025-02-21)
-
-### Added
-
-- *(crawler)* [**breaking**] Add memory-adaptive dispatcher with rate limiting
-- *(scraping)* [**breaking**] Add LXML-based scraping mode for improved performance
-- *(content-filter)* Add LLMContentFilter for intelligent markdown generation
-- *(dispatcher)* [**breaking**] Add streaming support for URL processing
-- *(browser)* [**breaking**] Improve browser context management and add shared data support
-- *(config)* [**breaking**] Add streaming support and config cloning
-- *(crawler)* Add URL redirection tracking
-- *(extraction)* Add LLM-powered schema generation utility
-- *(proxy)* Add proxy configuration support to CrawlerRunConfig
-- *(robots)* Add robots.txt compliance support
-- *(release)* [**breaking**] Prepare v0.4.3 beta release
-- *(proxy)* Add proxy rotation support and documentation
-- *(browser)* Add CDP URL configuration support
-- *(demo)* Uncomment feature demos and add fake-useragent dependency
-- *(pdf)* Add PDF processing capabilities
-- *(crawler)* [**breaking**] Enhance JavaScript execution and PDF processing
-- *(docker)* Add Docker deployment configuration and API server
-- *(docker)* Add Docker service integration and config serialization
-- *(docker)* [**breaking**] Enhance Docker deployment setup and configuration
-- *(api)* Improve cache handling and add API tests
-- *(crawler)* [**breaking**] Add deep crawling capabilities with BFS strategy
-- *(proxy)* [**breaking**] Add proxy rotation strategy
-- *(deep-crawling)* Add DFS strategy and update exports; refactor CLI entry point
-- *(cli)* Add command line interface with comprehensive features
-- *(config)* Enhance serialization and add deep crawling exports
-- *(crawler)* Add HTTP crawler strategy for lightweight web scraping
-- *(docker)* [**breaking**] Implement supervisor and secure API endpoints
-- *(docker)* [**breaking**] Add JWT authentication and improve server architecture
-
-### Changed
-
-- *(browser)* Update browser channel default to 'chromium' in BrowserConfig.from_args method
-- *(crawler)* Optimize response handling and default settings
-- *(crawler)* - Update hello_world example with proper content filtering
-- - Update hello_world.py example
-- *(docs)* [**breaking**] Reorganize documentation structure and update styles
-- *(dispatcher)* [**breaking**] Migrate to modular dispatcher system with enhanced monitoring
-- *(scraping)* [**breaking**] Replace ScrapingMode enum with strategy pattern
-- *(browser)* Improve browser path management
-- *(models)* Rename final_url to redirected_url for consistency
-- *(core)* [**breaking**] Improve type hints and remove unused file
-- *(docs)* Improve code formatting in features demo
-- *(user-agent)* Improve user agent generation system
-- *(core)* [**breaking**] Reorganize project structure and remove legacy code
-- *(docker)* Clean up import statements in server.py
-- *(docker)* Remove unused models and utilities for cleaner codebase
-- *(docker)* [**breaking**] Improve server architecture and configuration
-- *(deep-crawl)* [**breaking**] Reorganize deep crawling functionality into dedicated module
-- *(deep-crawling)* [**breaking**] Reorganize deep crawling strategies and add new implementations
-- *(crawling)* [**breaking**] Improve type hints and code cleanup
-- *(crawler)* [**breaking**] Improve HTML handling and cleanup codebase
-- *(crawler)* [**breaking**] Remove content filter functionality
-- *(examples)* Update API usage in features demo
-- *(config)* [**breaking**] Enhance serialization and config handling
-
-### Docs
-
-- Add Code of Conduct for the project (#410)
-
-### Documentation
-
-- *(extraction)* Add clarifying comments for CSS selector behavior
-- *(readme)* Update personal story and project vision
-- *(urls)* [**breaking**] Update documentation URLs to new domain
-- *(api)* Add streaming mode documentation and examples
-- *(readme)* Update version and feature announcements for v0.4.3b1
-- *(examples)* Update demo scripts and fix output formats
-- *(examples)* Update v0.4.3 features demo to v0.4.3b2
-- *(readme)* Update version references and fix links
-- *(multi-url)* [**breaking**] Improve documentation clarity and update examples
-- *(examples)* Update proxy rotation demo and disable other demos
-- *(api)* Improve formatting and readability of API documentation
-- *(examples)* Add SERP API project example
-- *(urls)* Update documentation URLs to new domain
-- *(readme)* Resolve merge conflict and update version info
-
-### Fixed
-
-- *(browser)* Update default browser channel to chromium and simplify channel selection logic
-- *(browser)* [**breaking**] Default to Chromium channel for new headless mode (#387)
-- *(browser)* Resolve merge conflicts in browser channel configuration
-- Prevent memory leaks by ensuring proper closure of Playwright pages
-- Not working long page screenshot (#403)
-- *(extraction)* JsonCss selector and crawler improvements
-- *(models)* [**breaking**] Make model fields optional with default values
-- *(dispatcher)* Adjust memory threshold and fix dispatcher initialization
-- *(install)* Ensure proper exit after running doctor command
-
-### Miscellaneous Tasks
-
-- *(cleanup)* Remove unused files and improve type hints
-- Add .gitattributes file
-
-## License Update
-
-Crawl4AI v0.5.0 updates the license to Apache 2.0 *with a required attribution clause*.  This means you are free to use, modify, and distribute Crawl4AI (even commercially), but you *must* clearly attribute the project in any public use or distribution.  See the updated `LICENSE` file for the full legal text and specific requirements.
-
 ---
 
+### Changed
+Okay, here's a detailed changelog in Markdown format, generated from the provided git diff and commit history. I've focused on user-facing changes, fixes, and features, and grouped them as requested:
+
 ## Version 0.4.3b2 (2025-01-21)
 
 This release introduces several powerful new features, including robots.txt compliance, dynamic proxy support, LLM-powered schema generation, and improved documentation.
@@ -411,6 +286,12 @@ This release introduces several powerful new features, including robots.txt comp
 - Fixed potential viewport mismatches by ensuring consistent use of `self.viewport_width` and `self.viewport_height` throughout the code.
 - Improved robustness of dynamic content loading to avoid timeouts and failed evaluations.
 
+
+
+
+
+
+
 ## [0.3.75] December 1, 2024
 
 ### PruningContentFilter

CONTRIBUTORS.md

@@ -24,14 +24,6 @@ We would like to thank the following people for their contributions to Crawl4AI:
 - [NanmiCoder](https://github.com/NanmiCoder) - fix: crawler strategy exception handling and fixes [#271](https://github.com/unclecode/crawl4ai/pull/271)
 - [paulokuong](https://github.com/paulokuong) - fix: RAWL4_AI_BASE_DIRECTORY should be Path object instead of string [#298](https://github.com/unclecode/crawl4ai/pull/298)
 
-#### Feb-Alpha-1
-- [sufianuddin](https://github.com/sufianuddin) - fix: [Documentation for JsonCssExtractionStrategy](https://github.com/unclecode/crawl4ai/issues/651)
-- [tautikAg](https://github.com/tautikAg) - fix: [Markdown output has incorect spacing](https://github.com/unclecode/crawl4ai/issues/599)
-- [cardit1](https://github.com/cardit1) - fix: ['AsyncPlaywrightCrawlerStrategy' object has no attribute 'downloads_path'](https://github.com/unclecode/crawl4ai/issues/585)
-- [dmurat](https://github.com/dmurat) - fix: [ Incorrect rendering of inline code inside of links ](https://github.com/unclecode/crawl4ai/issues/583)
-- [Sparshsing](https://github.com/Sparshsing) - fix: [Relative Urls in the webpage not extracted properly ](https://github.com/unclecode/crawl4ai/issues/570)
-
-
 
 ## Other Contributors
 
@@ -39,11 +31,6 @@ We would like to thank the following people for their contributions to Crawl4AI:
 - [Shiv Kumar](https://github.com/shivkumar0757)
 - [QIN2DIM](https://github.com/QIN2DIM)
 
-#### Typo fixes
-- [ssoydan](https://github.com/ssoydan)
-- [Darshan](https://github.com/Darshan2104)
-- [tuhinmallick](https://github.com/tuhinmallick)
-
 ## Acknowledgements
 
 We also want to thank all the users who have reported bugs, suggested features, or helped in any other way to make Crawl4AI better.

Dockerfile

@@ -1,31 +1,32 @@
-FROM python:3.10-slim
+# syntax=docker/dockerfile:1.4
 
-# Set build arguments
-ARG APP_HOME=/app
-ARG GITHUB_REPO=https://github.com/unclecode/crawl4ai.git
-ARG GITHUB_BRANCH=main
-ARG USE_LOCAL=true
-
-ENV PYTHONFAULTHANDLER=1 \
-    PYTHONHASHSEED=random \
-    PYTHONUNBUFFERED=1 \
-    PIP_NO_CACHE_DIR=1 \
-    PYTHONDONTWRITEBYTECODE=1 \
-    PIP_DISABLE_PIP_VERSION_CHECK=1 \
-    PIP_DEFAULT_TIMEOUT=100 \
-    DEBIAN_FRONTEND=noninteractive \
-    REDIS_HOST=localhost \
-    REDIS_PORT=6379
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
 
+# Other build arguments
 ARG PYTHON_VERSION=3.10
-ARG INSTALL_TYPE=default
-ARG ENABLE_GPU=false
-ARG TARGETARCH
 
+# Base stage with system dependencies
+FROM python:${PYTHON_VERSION}-slim as base
+
+# Declare ARG variables again within the build stage
+ARG INSTALL_TYPE=all
+ARG ENABLE_GPU=false
+
+# Platform-specific labels
 LABEL maintainer="unclecode"
 LABEL description="🔥🕷️ Crawl4AI: Open-source LLM Friendly Web Crawler & scraper"
-LABEL version="1.0"    
+LABEL version="1.0"
 
+# Environment setup
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1 \
+    PIP_DEFAULT_TIMEOUT=100 \
+    DEBIAN_FRONTEND=noninteractive
+
+# Install system dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
     curl \
@@ -36,10 +37,10 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     pkg-config \
     python3-dev \
     libjpeg-dev \
-    redis-server \
-    supervisor \
+    libpng-dev \
     && rm -rf /var/lib/apt/lists/*
 
+# Playwright system dependencies for Linux
 RUN apt-get update && apt-get install -y --no-install-recommends \
     libglib2.0-0 \
     libnss3 \
@@ -64,7 +65,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libatspi2.0-0 \
     && rm -rf /var/lib/apt/lists/*
 
-RUN if [ "$ENABLE_GPU" = "true" ] && [ "$TARGETARCH" = "amd64" ] ; then \
+# GPU support if enabled and architecture is supported
+RUN if [ "$ENABLE_GPU" = "true" ] && [ "$TARGETPLATFORM" = "linux/amd64" ] ; then \
     apt-get update && apt-get install -y --no-install-recommends \
     nvidia-cuda-toolkit \
     && rm -rf /var/lib/apt/lists/* ; \
@@ -72,42 +74,19 @@ else \
     echo "Skipping NVIDIA CUDA Toolkit installation (unsupported platform or GPU disabled)"; \
 fi
 
-RUN if [ "$TARGETARCH" = "arm64" ]; then \
-    echo "🦾 Installing ARM-specific optimizations"; \
-    apt-get update && apt-get install -y --no-install-recommends \
-    libopenblas-dev \
-    && rm -rf /var/lib/apt/lists/*; \
-elif [ "$TARGETARCH" = "amd64" ]; then \
-    echo "🖥️ Installing AMD64-specific optimizations"; \
-    apt-get update && apt-get install -y --no-install-recommends \
-    libomp-dev \
-    && rm -rf /var/lib/apt/lists/*; \
-else \
-    echo "Skipping platform-specific optimizations (unsupported platform)"; \
-fi
+# Create and set working directory
+WORKDIR /app
 
-WORKDIR ${APP_HOME}
+# Copy the entire project
+COPY . .
 
-RUN echo '#!/bin/bash\n\
-if [ "$USE_LOCAL" = "true" ]; then\n\
-    echo "📦 Installing from local source..."\n\
-    pip install --no-cache-dir /tmp/project/\n\
-else\n\
-    echo "🌐 Installing from GitHub..."\n\
-    for i in {1..3}; do \n\
-        git clone --branch ${GITHUB_BRANCH} ${GITHUB_REPO} /tmp/crawl4ai && break || \n\
-        { echo "Attempt $i/3 failed! Taking a short break... ☕"; sleep 5; }; \n\
-    done\n\
-    pip install --no-cache-dir /tmp/crawl4ai\n\
-fi' > /tmp/install.sh && chmod +x /tmp/install.sh
-
-COPY . /tmp/project/
-
-COPY deploy/docker/supervisord.conf .
-
-COPY deploy/docker/requirements.txt .
+# Install base requirements
 RUN pip install --no-cache-dir -r requirements.txt
 
+# Install required library for FastAPI
+RUN pip install fastapi uvicorn psutil
+
+# Install ML dependencies first for better layer caching
 RUN if [ "$INSTALL_TYPE" = "all" ] ; then \
         pip install --no-cache-dir \
             torch \
@@ -120,37 +99,38 @@ RUN if [ "$INSTALL_TYPE" = "all" ] ; then \
         python -m nltk.downloader punkt stopwords ; \
     fi
 
+# Install the package
 RUN if [ "$INSTALL_TYPE" = "all" ] ; then \
-        pip install "/tmp/project/[all]" && \
+        pip install ".[all]" && \
         python -m crawl4ai.model_loader ; \
     elif [ "$INSTALL_TYPE" = "torch" ] ; then \
-        pip install "/tmp/project/[torch]" ; \
+        pip install ".[torch]" ; \
     elif [ "$INSTALL_TYPE" = "transformer" ] ; then \
-        pip install "/tmp/project/[transformer]" && \
+        pip install ".[transformer]" && \
         python -m crawl4ai.model_loader ; \
     else \
-        pip install "/tmp/project" ; \
+        pip install "." ; \
     fi
-    
-RUN pip install --no-cache-dir --upgrade pip && \
-    /tmp/install.sh && \
-    python -c "import crawl4ai; print('✅ crawl4ai is ready to rock!')" && \
-    python -c "from playwright.sync_api import sync_playwright; print('✅ Playwright is feeling dramatic!')"
-    
-RUN playwright install --with-deps chromium
 
-COPY deploy/docker/* ${APP_HOME}/
+    # Install MkDocs and required plugins
+RUN pip install --no-cache-dir \
+    mkdocs \
+    mkdocs-material \
+    mkdocs-terminal \
+    pymdown-extensions
 
-HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
-    CMD bash -c '\
-    MEM=$(free -m | awk "/^Mem:/{print \$2}"); \
-    if [ $MEM -lt 2048 ]; then \
-        echo "⚠️ Warning: Less than 2GB RAM available! Your container might need a memory boost! 🚀"; \
-        exit 1; \
-    fi && \
-    redis-cli ping > /dev/null && \
-    curl -f http://localhost:8000/health || exit 1'
+# Build MkDocs documentation
+RUN mkdocs build
 
-EXPOSE 6379
-CMD ["supervisord", "-c", "supervisord.conf"]
-    
+# Install Playwright and browsers
+RUN if [ "$TARGETPLATFORM" = "linux/amd64" ]; then \
+    playwright install chromium; \
+    elif [ "$TARGETPLATFORM" = "linux/arm64" ]; then \
+    playwright install chromium; \
+    fi
+
+# Expose port
+EXPOSE 8000 11235 9222 8080
+
+# Start the FastAPI server
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "11235"]

LICENSE

@@ -48,22 +48,4 @@ You may add Your own copyright statement to Your modifications and may provide a
 
 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability.
 
-END OF TERMS AND CONDITIONS
-
----
-Attribution Requirement
-
-All distributions, publications, or public uses of this software, or derivative works based on this software, must include the following attribution:
-
-"This product includes software developed by UncleCode (https://x.com/unclecode) as part of the Crawl4AI project (https://github.com/unclecode/crawl4ai)."
-
-This attribution must be displayed in a prominent and easily accessible location, such as:
-
--   For software distributions: In a NOTICE file, README file, or equivalent documentation.
--   For publications (research papers, articles, blog posts): In the acknowledgments section or a footnote.
--   For websites/web applications: In an "About" or "Credits" section.
--   For command-line tools: In the help/usage output.
-
-This requirement ensures proper credit is given for the use of Crawl4AI and helps promote the project.
-
----
+END OF TERMS AND CONDITIONS

README.md

@@ -21,9 +21,9 @@
 
 Crawl4AI is the #1 trending GitHub repository, actively maintained by a vibrant community. It delivers blazing-fast, AI-ready web crawling tailored for LLMs, AI agents, and data pipelines. Open source, flexible, and built for real-time performance, Crawl4AI empowers developers with unmatched speed, precision, and deployment ease.  
 
-[✨ Check out latest update v0.5.0](#-recent-updates)
+[✨ Check out latest update v0.4.3bx](#-recent-updates)
 
-🎉 **Version 0.5.0 is out!** This major release introduces Deep Crawling with BFS/DFS/BestFirst strategies, Memory-Adaptive Dispatcher, Multiple Crawling Strategies (Playwright and HTTP), Docker Deployment with FastAPI, Command-Line Interface (CLI), and more! [Read the release notes →](https://docs.crawl4ai.com/blog)
+🎉 **Version 0.4.3bx is out!** This release brings exciting new features like a Memory Dispatcher System, Streaming Support, LLM-Powered Markdown Generation, Schema Generation, and Robots.txt Compliance! [Read the release notes →](https://docs.crawl4ai.com/blog)
 
 <details>
 <summary>🤓 <strong>My Personal Story</strong></summary>
@@ -68,7 +68,7 @@ If you encounter any browser-related issues, you can install them manually:
 python -m playwright install --with-deps chromium
 ```
 
-2. Run a simple web crawl with Python:
+2. Run a simple web crawl:
 ```python
 import asyncio
 from crawl4ai import *
@@ -84,18 +84,6 @@ if __name__ == "__main__":
     asyncio.run(main())
 ```
 
-3. Or use the new command-line interface:
-```bash
-# Basic crawl with markdown output
-crwl https://www.nbcnews.com/business -o markdown
-
-# Deep crawl with BFS strategy, max 10 pages
-crwl https://docs.crawl4ai.com --deep-crawl bfs --max-pages 10
-
-# Use LLM extraction with a specific question
-crwl https://www.example.com/products -q "Extract all product prices"
-```
-
 ## ✨ Features 
 
 <details>
@@ -124,7 +112,6 @@ crwl https://www.example.com/products -q "Extract all product prices"
 
 - 🖥️ **Managed Browser**: Use user-owned browsers with full control, avoiding bot detection.
 - 🔄 **Remote Browser Control**: Connect to Chrome Developer Tools Protocol for remote, large-scale data extraction.
-- 👤 **Browser Profiler**: Create and manage persistent profiles with saved authentication states, cookies, and settings.
 - 🔒 **Session Management**: Preserve browser states and reuse them for multi-step crawling.
 - 🧩 **Proxy Support**: Seamlessly connect to proxies with authentication for secure access.
 - ⚙️ **Full Browser Control**: Modify headers, cookies, user agents, and more for tailored crawling setups.
@@ -153,11 +140,10 @@ crwl https://www.example.com/products -q "Extract all product prices"
 <details>
 <summary>🚀 <strong>Deployment</strong></summary>
 
-- 🐳 **Dockerized Setup**: Optimized Docker image with FastAPI server for easy deployment.
-- 🔑 **Secure Authentication**: Built-in JWT token authentication for API security.
+- 🐳 **Dockerized Setup**: Optimized Docker image with API server for easy deployment.
 - 🔄 **API Gateway**: One-click deployment with secure token authentication for API-based workflows.
 - 🌐 **Scalable Architecture**: Designed for mass-scale production and optimized server performance.
-- ☁️ **Cloud Deployment**: Ready-to-deploy configurations for major cloud platforms.
+- ⚙️ **DigitalOcean Deployment**: Ready-to-deploy configurations for DigitalOcean and similar platforms.
 
 </details>
 
@@ -332,8 +318,9 @@ async def main():
             url="https://docs.micronaut.io/4.7.6/guide/",
             config=run_config
         )
-        print(len(result.markdown.raw_markdown))
-        print(len(result.markdown.fit_markdown))
+        print(len(result.markdown))
+        print(len(result.fit_markdown))
+        print(len(result.markdown_v2.fit_markdown))
 
 if __name__ == "__main__":
     asyncio.run(main())
@@ -420,7 +407,7 @@ if __name__ == "__main__":
 ```python
 import os
 import asyncio
-from crawl4ai import AsyncWebCrawler, BrowserConfig, CrawlerRunConfig, CacheMode, LlmConfig
+from crawl4ai import AsyncWebCrawler, BrowserConfig, CrawlerRunConfig, CacheMode
 from crawl4ai.extraction_strategy import LLMExtractionStrategy
 from pydantic import BaseModel, Field
 
@@ -436,7 +423,7 @@ async def main():
         extraction_strategy=LLMExtractionStrategy(
             # Here you can use any provider that Litellm library supports, for instance: ollama/qwen2
             # provider="ollama/qwen2", api_token="no-token", 
-            llmConfig = LlmConfig(provider="openai/gpt-4o", api_token=os.getenv('OPENAI_API_KEY')), 
+            provider="openai/gpt-4o", api_token=os.getenv('OPENAI_API_KEY'), 
             schema=OpenAIModelFee.schema(),
             extraction_type="schema",
             instruction="""From the crawled content, extract all mentioned model names along with their fees for input and output tokens. 
@@ -500,31 +487,21 @@ async def test_news_crawl():
 
 ## ✨ Recent Updates
 
-### Version 0.5.0 Major Release Highlights
+-   **🚀 New Dispatcher System**: Scale to thousands of URLs with intelligent **memory monitoring**, **concurrency control**, and optional **rate limiting**. (See `MemoryAdaptiveDispatcher`, `SemaphoreDispatcher`, `RateLimiter`, `CrawlerMonitor`)
+-   **⚡ Streaming Mode**: Process results **as they arrive** instead of waiting for an entire batch to complete. (Set `stream=True` in `CrawlerRunConfig`)
+-   **🤖 Enhanced LLM Integration**:
+    -   **Automatic schema generation**: Create extraction rules from HTML using OpenAI or Ollama, no manual CSS/XPath needed.
+    -   **LLM-powered Markdown filtering**: Refine your markdown output with a new `LLMContentFilter` that understands content relevance.
+    -   **Ollama Support**: Use open-source or self-hosted models for private or cost-effective extraction.
+-   **🏎️ Faster Scraping Option**: New `LXMLWebScrapingStrategy` offers **10-20x speedup** for large, complex pages (experimental).
+-   **🤖 robots.txt Compliance**: Respect website rules with `check_robots_txt=True` and efficient local caching.
+-   **🔄 Proxy Rotation**: Built-in support for dynamic proxy switching and IP verification, with support for authenticated proxies and session persistence.
+-   **➡️ URL Redirection Tracking**: The `redirected_url` field now captures the final destination after any redirects.
+-   **🪞 Improved Mirroring**: The `LXMLWebScrapingStrategy` now has much greater fidelity, allowing for almost pixel-perfect mirroring of websites.
+-   **📈 Enhanced Monitoring**: Track memory, CPU, and individual crawler status with `CrawlerMonitor`.
+-   **📝 Improved Documentation**: More examples, clearer explanations, and updated tutorials.
 
--   **🚀 Deep Crawling System**: Explore websites beyond initial URLs with three strategies:
-    -   **BFS Strategy**: Breadth-first search explores websites level by level
-    -   **DFS Strategy**: Depth-first search explores each branch deeply before backtracking
-    -   **BestFirst Strategy**: Uses scoring functions to prioritize which URLs to crawl next
-    -   **Page Limiting**: Control the maximum number of pages to crawl with `max_pages` parameter
-    -   **Score Thresholds**: Filter URLs based on relevance scores
--   **⚡ Memory-Adaptive Dispatcher**: Dynamically adjusts concurrency based on system memory with built-in rate limiting
--   **🔄 Multiple Crawling Strategies**:
-    -   **AsyncPlaywrightCrawlerStrategy**: Browser-based crawling with JavaScript support (Default)
-    -   **AsyncHTTPCrawlerStrategy**: Fast, lightweight HTTP-only crawler for simple tasks
--   **🐳 Docker Deployment**: Easy deployment with FastAPI server and streaming/non-streaming endpoints
--   **💻 Command-Line Interface**: New `crwl` CLI provides convenient terminal access to all features with intuitive commands and configuration options
--   **👤 Browser Profiler**: Create and manage persistent browser profiles to save authentication states, cookies, and settings for seamless crawling of protected content
--   **🧠 Crawl4AI Coding Assistant**: AI-powered coding assistant to answer your question for Crawl4ai, and generate proper code for crawling.
--   **🏎️ LXML Scraping Mode**: Fast HTML parsing using the `lxml` library for improved performance
--   **🌐 Proxy Rotation**: Built-in support for proxy switching with `RoundRobinProxyStrategy`
--   **🤖 LLM Content Filter**: Intelligent markdown generation using LLMs
--   **📄 PDF Processing**: Extract text, images, and metadata from PDF files
--   **🔗 URL Redirection Tracking**: Automatically follow and record HTTP redirects
--   **🤖 LLM Schema Generation**: Easily create extraction schemas with LLM assistance
--   **🔍 robots.txt Compliance**: Respect website crawling rules
-
-Read the full details in our [0.5.0 Release Notes](https://docs.crawl4ai.com/blog/releases/0.5.0.html) or check the [CHANGELOG](https://github.com/unclecode/crawl4ai/blob/main/CHANGELOG.md).
+Read the full details in our [0.4.3bx Release Notes](https://github.com/unclecode/crawl4ai/blob/main/CHANGELOG.md).
 
 ## Version Numbering in Crawl4AI
 
@@ -597,83 +574,9 @@ To check our development plans and upcoming features, visit our [Roadmap](https:
 
 We welcome contributions from the open-source community. Check out our [contribution guidelines](https://github.com/unclecode/crawl4ai/blob/main/CONTRIBUTORS.md) for more information.
 
-I'll help modify the license section with badges. For the halftone effect, here's a version with it:
+## 📄 License 
 
-Here's the updated license section:
-
-## 📄 License & Attribution
-
-This project is licensed under the Apache License 2.0 with a required attribution clause. See the [Apache 2.0 License](https://github.com/unclecode/crawl4ai/blob/main/LICENSE) file for details.
-
-### Attribution Requirements
-When using Crawl4AI, you must include one of the following attribution methods:
-
-#### 1. Badge Attribution (Recommended)
-Add one of these badges to your README, documentation, or website:
-
-| Theme | Badge |
-|-------|-------|
-| **Disco Theme (Animated)** | <a href="https://github.com/unclecode/crawl4ai"><img src="./docs/assets/powered-by-disco.svg" alt="Powered by Crawl4AI" width="200"/></a> |
-| **Night Theme (Dark with Neon)** | <a href="https://github.com/unclecode/crawl4ai"><img src="./docs/assets/powered-by-night.svg" alt="Powered by Crawl4AI" width="200"/></a> |
-| **Dark Theme (Classic)** | <a href="https://github.com/unclecode/crawl4ai"><img src="./docs/assets/powered-by-dark.svg" alt="Powered by Crawl4AI" width="200"/></a> |
-| **Light Theme (Classic)** | <a href="https://github.com/unclecode/crawl4ai"><img src="./docs/assets/powered-by-light.svg" alt="Powered by Crawl4AI" width="200"/></a> |
- 
-
-HTML code for adding the badges:
-```html
-<!-- Disco Theme (Animated) -->
-<a href="https://github.com/unclecode/crawl4ai">
-  <img src="https://raw.githubusercontent.com/unclecode/crawl4ai/main/docs/assets/powered-by-disco.svg" alt="Powered by Crawl4AI" width="200"/>
-</a>
-
-<!-- Night Theme (Dark with Neon) -->
-<a href="https://github.com/unclecode/crawl4ai">
-  <img src="https://raw.githubusercontent.com/unclecode/crawl4ai/main/docs/assets/powered-by-night.svg" alt="Powered by Crawl4AI" width="200"/>
-</a>
-
-<!-- Dark Theme (Classic) -->
-<a href="https://github.com/unclecode/crawl4ai">
-  <img src="https://raw.githubusercontent.com/unclecode/crawl4ai/main/docs/assets/powered-by-dark.svg" alt="Powered by Crawl4AI" width="200"/>
-</a>
-
-<!-- Light Theme (Classic) -->
-<a href="https://github.com/unclecode/crawl4ai">
-  <img src="https://raw.githubusercontent.com/unclecode/crawl4ai/main/docs/assets/powered-by-light.svg" alt="Powered by Crawl4AI" width="200"/>
-</a>
-
-<!-- Simple Shield Badge -->
-<a href="https://github.com/unclecode/crawl4ai">
-  <img src="https://img.shields.io/badge/Powered%20by-Crawl4AI-blue?style=flat-square" alt="Powered by Crawl4AI"/>
-</a>
-```
-
-#### 2. Text Attribution
-Add this line to your documentation:
-```
-This project uses Crawl4AI (https://github.com/unclecode/crawl4ai) for web data extraction.
-```
-
-## 📚 Citation
-
-If you use Crawl4AI in your research or project, please cite:
-
-```bibtex
-@software{crawl4ai2024,
-  author = {UncleCode},
-  title = {Crawl4AI: Open-source LLM Friendly Web Crawler & Scraper},
-  year = {2024},
-  publisher = {GitHub},
-  journal = {GitHub Repository},
-  howpublished = {\url{https://github.com/unclecode/crawl4ai}},
-  commit = {Please use the commit hash you're working with}
-}
-```
-
-Text citation format:
-```
-UncleCode. (2024). Crawl4AI: Open-source LLM Friendly Web Crawler & Scraper [Computer software]. 
-GitHub. https://github.com/unclecode/crawl4ai
-```
+Crawl4AI is released under the [Apache 2.0 License](https://github.com/unclecode/crawl4ai/blob/main/LICENSE).
 
 ## 📧 Contact 
 

cliff.toml

@@ -1,24 +0,0 @@
-[changelog]
-# Template format
-header = """
-# Changelog\n
-All notable changes to this project will be documented in this file.\n
-The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
-and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).\n
-"""
-
-# Organize commits by type
-[git]
-conventional_commits = true
-filter_unconventional = true
-commit_parsers = [
-    { message = "^feat", group = "Added"},
-    { message = "^fix", group = "Fixed"},
-    { message = "^doc", group = "Documentation"},
-    { message = "^perf", group = "Performance"},
-    { message = "^refactor", group = "Changed"},
-    { message = "^style", group = "Changed"},
-    { message = "^test", group = "Testing"},
-    { message = "^chore\\(release\\): prepare for", skip = true},
-    { message = "^chore", group = "Miscellaneous Tasks"},
-]

crawl4ai/__init__.py

@@ -1,36 +1,22 @@
 # __init__.py
-import warnings
 
 from .async_webcrawler import AsyncWebCrawler, CacheMode
-from .async_configs import BrowserConfig, CrawlerRunConfig, HTTPCrawlerConfig
+from .async_configs import BrowserConfig, CrawlerRunConfig
 from .content_scraping_strategy import (
     ContentScrapingStrategy,
     WebScrapingStrategy,
     LXMLWebScrapingStrategy,
 )
-from .async_logger import (
-    AsyncLoggerBase,
-    AsyncLogger,
-)
-from .proxy_strategy import (
-    ProxyRotationStrategy,
-    RoundRobinProxyStrategy,
-)
 from .extraction_strategy import (
     ExtractionStrategy,
     LLMExtractionStrategy,
     CosineStrategy,
     JsonCssExtractionStrategy,
-    JsonXPathExtractionStrategy,
+    JsonXPathExtractionStrategy
 )
 from .chunking_strategy import ChunkingStrategy, RegexChunking
 from .markdown_generation_strategy import DefaultMarkdownGenerator
-from .content_filter_strategy import (
-    PruningContentFilter,
-    BM25ContentFilter,
-    LLMContentFilter,
-    RelevantContentFilter,
-)
+from .content_filter_strategy import PruningContentFilter, BM25ContentFilter, LLMContentFilter, RelevantContentFilter
 from .models import CrawlResult, MarkdownGenerationResult
 from .async_dispatcher import (
     MemoryAdaptiveDispatcher,
@@ -38,62 +24,18 @@ from .async_dispatcher import (
     RateLimiter,
     CrawlerMonitor,
     DisplayMode,
-    BaseDispatcher,
-)
-from .docker_client import Crawl4aiDockerClient
-from .hub import CrawlerHub
-from .browser_profiler import BrowserProfiler
-from .deep_crawling import (
-    DeepCrawlStrategy,
-    BFSDeepCrawlStrategy,
-    FilterChain,
-    ContentTypeFilter,
-    DomainFilter,
-    URLFilter,
-    FilterStats,
-    SEOFilter,
-    KeywordRelevanceScorer,
-    URLScorer,
-    CompositeScorer,
-    DomainAuthorityScorer,
-    FreshnessScorer,
-    PathDepthScorer,
-    BestFirstCrawlingStrategy,
-    DFSDeepCrawlStrategy,
-    DeepCrawlDecorator,
+    BaseDispatcher
 )
 
 __all__ = [
-    "AsyncLoggerBase",
-    "AsyncLogger",
     "AsyncWebCrawler",
-    "BrowserProfiler",
-    "DeepCrawlStrategy",
-    "BFSDeepCrawlStrategy",
-    "BestFirstCrawlingStrategy",
-    "DFSDeepCrawlStrategy",
-    "FilterChain",
-    "ContentTypeFilter",
-    "DomainFilter",
-    "FilterStats",
-    "URLFilter",
-    "SEOFilter",
-    "KeywordRelevanceScorer",
-    "URLScorer",
-    "CompositeScorer",
-    "DomainAuthorityScorer",
-    "FreshnessScorer",
-    "PathDepthScorer",
-    "DeepCrawlDecorator",
     "CrawlResult",
-    "CrawlerHub",
     "CacheMode",
     "ContentScrapingStrategy",
     "WebScrapingStrategy",
     "LXMLWebScrapingStrategy",
     "BrowserConfig",
     "CrawlerRunConfig",
-    "HTTPCrawlerConfig",
     "ExtractionStrategy",
     "LLMExtractionStrategy",
     "CosineStrategy",
@@ -113,35 +55,35 @@ __all__ = [
     "CrawlerMonitor",
     "DisplayMode",
     "MarkdownGenerationResult",
-    "Crawl4aiDockerClient",
-    "ProxyRotationStrategy",
-    "RoundRobinProxyStrategy",
 ]
 
 
-# def is_sync_version_installed():
-#     try:
-#         import selenium # noqa
+def is_sync_version_installed():
+    try:
+        import selenium
 
-#         return True
-#     except ImportError:
-#         return False
+        return True
+    except ImportError:
+        return False
 
 
-# if is_sync_version_installed():
-#     try:
-#         from .web_crawler import WebCrawler
+if is_sync_version_installed():
+    try:
+        from .web_crawler import WebCrawler
 
-#         __all__.append("WebCrawler")
-#     except ImportError:
-#         print(
-#             "Warning: Failed to import WebCrawler even though selenium is installed. This might be due to other missing dependencies."
-#         )
-# else:
-#     WebCrawler = None
-#     # import warnings
-#     # print("Warning: Synchronous WebCrawler is not available. Install crawl4ai[sync] for synchronous support. However, please note that the synchronous version will be deprecated soon.")
+        __all__.append("WebCrawler")
+    except ImportError:
+        print(
+            "Warning: Failed to import WebCrawler even though selenium is installed. This might be due to other missing dependencies."
+        )
+else:
+    WebCrawler = None
+    # import warnings
+    # print("Warning: Synchronous WebCrawler is not available. Install crawl4ai[sync] for synchronous support. However, please note that the synchronous version will be deprecated soon.")
+
+import warnings
+from pydantic import warnings as pydantic_warnings
 
 # Disable all Pydantic warnings
 warnings.filterwarnings("ignore", module="pydantic")
-# pydantic_warnings.filter_warnings()
+# pydantic_warnings.filter_warnings()

crawl4ai/__version__.py

@@ -1,2 +1,2 @@
 # crawl4ai/_version.py
-__version__ = "0.5.0.post1"
+__version__ = "0.4.3b3"

crawl4ai/async_configs.py

@@ -1,154 +1,21 @@
-import os
 from .config import (
-    DEFAULT_PROVIDER,
     MIN_WORD_THRESHOLD,
     IMAGE_DESCRIPTION_MIN_WORD_THRESHOLD,
-    PROVIDER_MODELS,
     SCREENSHOT_HEIGHT_TRESHOLD,
     PAGE_TIMEOUT,
     IMAGE_SCORE_THRESHOLD,
     SOCIAL_MEDIA_DOMAINS,
 )
 
-from .user_agent_generator import UAGen, ValidUAGenerator  # , OnlineUAGenerator
+from .user_agent_generator import UserAgentGenerator, UAGen, ValidUAGenerator, OnlineUAGenerator
 from .extraction_strategy import ExtractionStrategy
 from .chunking_strategy import ChunkingStrategy, RegexChunking
+from .deep_crawl import DeepCrawlStrategy
 from .markdown_generation_strategy import MarkdownGenerationStrategy
+from .content_filter_strategy import RelevantContentFilter, BM25ContentFilter, LLMContentFilter, PruningContentFilter
 from .content_scraping_strategy import ContentScrapingStrategy, WebScrapingStrategy
-from .deep_crawling import DeepCrawlStrategy
-from typing import Union, List
+from typing import Optional, Union, List
 from .cache_context import CacheMode
-from .proxy_strategy import ProxyRotationStrategy
-
-import inspect
-from typing import Any, Dict, Optional
-from enum import Enum
-
-
-def to_serializable_dict(obj: Any, ignore_default_value : bool = False) -> Dict:
-    """
-    Recursively convert an object to a serializable dictionary using {type, params} structure
-    for complex objects.
-    """
-    if obj is None:
-        return None
-
-    # Handle basic types
-    if isinstance(obj, (str, int, float, bool)):
-        return obj
-
-    # Handle Enum
-    if isinstance(obj, Enum):
-        return {"type": obj.__class__.__name__, "params": obj.value}
-
-    # Handle datetime objects
-    if hasattr(obj, "isoformat"):
-        return obj.isoformat()
-
-    # Handle lists, tuples, and sets, and basically any iterable
-    if isinstance(obj, (list, tuple, set)) or hasattr(obj, '__iter__') and not isinstance(obj, dict):
-        return [to_serializable_dict(item) for item in obj]
-
-    # Handle frozensets, which are not iterable
-    if isinstance(obj, frozenset):
-        return [to_serializable_dict(item) for item in list(obj)]
-
-    # Handle dictionaries - preserve them as-is
-    if isinstance(obj, dict):
-        return {
-            "type": "dict",  # Mark as plain dictionary
-            "value": {str(k): to_serializable_dict(v) for k, v in obj.items()},
-        }
-
-    _type = obj.__class__.__name__
-
-    # Handle class instances
-    if hasattr(obj, "__class__"):
-        # Get constructor signature
-        sig = inspect.signature(obj.__class__.__init__)
-        params = sig.parameters
-
-        # Get current values
-        current_values = {}
-        for name, param in params.items():
-            if name == "self":
-                continue
-
-            value = getattr(obj, name, param.default)
-
-            # Only include if different from default, considering empty values
-            if not (is_empty_value(value) and is_empty_value(param.default)):
-                if value != param.default and not ignore_default_value:
-                    current_values[name] = to_serializable_dict(value)
-        
-        if hasattr(obj, '__slots__'):
-            for slot in obj.__slots__:
-                if slot.startswith('_'):  # Handle private slots
-                    attr_name = slot[1:]  # Remove leading '_'
-                    value = getattr(obj, slot, None)
-                    if value is not None:
-                        current_values[attr_name] = to_serializable_dict(value)
-
-            
-        
-        return {
-            "type": obj.__class__.__name__,
-            "params": current_values
-        }
-        
-    return str(obj)
-
-
-def from_serializable_dict(data: Any) -> Any:
-    """
-    Recursively convert a serializable dictionary back to an object instance.
-    """
-    if data is None:
-        return None
-
-    # Handle basic types
-    if isinstance(data, (str, int, float, bool)):
-        return data
-
-    # Handle typed data
-    if isinstance(data, dict) and "type" in data:
-        # Handle plain dictionaries
-        if data["type"] == "dict":
-            return {k: from_serializable_dict(v) for k, v in data["value"].items()}
-
-        # Import from crawl4ai for class instances
-        import crawl4ai
-
-        cls = getattr(crawl4ai, data["type"])
-
-        # Handle Enum
-        if issubclass(cls, Enum):
-            return cls(data["params"])
-
-        # Handle class instances
-        constructor_args = {
-            k: from_serializable_dict(v) for k, v in data["params"].items()
-        }
-        return cls(**constructor_args)
-
-    # Handle lists
-    if isinstance(data, list):
-        return [from_serializable_dict(item) for item in data]
-
-    # Handle raw dictionaries (legacy support)
-    if isinstance(data, dict):
-        return {k: from_serializable_dict(v) for k, v in data.items()}
-
-    return data
-
-
-def is_empty_value(value: Any) -> bool:
-    """Check if a value is effectively empty/null."""
-    if value is None:
-        return True
-    if isinstance(value, (list, tuple, set, dict, str)) and len(value) == 0:
-        return True
-    return False
 
 
 class BrowserConfig:
@@ -182,8 +49,6 @@ class BrowserConfig:
                                      If None, no additional proxy config. Default: None.
         viewport_width (int): Default viewport width for pages. Default: 1080.
         viewport_height (int): Default viewport height for pages. Default: 600.
-        viewport (dict): Default viewport dimensions for pages. If set, overrides viewport_width and viewport_height.
-                         Default: None.
         verbose (bool): Enable verbose logging.
                         Default: True.
         accept_downloads (bool): Whether to allow file downloads. If True, requires a downloads_path.
@@ -226,10 +91,9 @@ class BrowserConfig:
         proxy_config: dict = None,
         viewport_width: int = 1080,
         viewport_height: int = 600,
-        viewport: dict = None,
         accept_downloads: bool = False,
         downloads_path: str = None,
-        storage_state: Union[str, dict, None] = None,
+        storage_state : Union[str, dict, None]=None,
         ignore_https_errors: bool = True,
         java_script_enabled: bool = True,
         sleep_on_close: bool = False,
@@ -265,10 +129,6 @@ class BrowserConfig:
         self.proxy_config = proxy_config
         self.viewport_width = viewport_width
         self.viewport_height = viewport_height
-        self.viewport = viewport
-        if self.viewport is not None:
-            self.viewport_width = self.viewport.get("width", 1080)
-            self.viewport_height = self.viewport.get("height", 600)
         self.accept_downloads = accept_downloads
         self.downloads_path = downloads_path
         self.storage_state = storage_state
@@ -293,7 +153,7 @@ class BrowserConfig:
             )
         else:
             pass
-
+        
         self.browser_hint = UAGen.generate_client_hints(self.user_agent)
         self.headers.setdefault("sec-ch-ua", self.browser_hint)
 
@@ -369,10 +229,10 @@ class BrowserConfig:
 
     def clone(self, **kwargs):
         """Create a copy of this configuration with updated values.
-
+        
         Args:
             **kwargs: Key-value pairs of configuration options to update
-
+            
         Returns:
             BrowserConfig: A new instance with the specified updates
         """
@@ -380,98 +240,8 @@ class BrowserConfig:
         config_dict.update(kwargs)
         return BrowserConfig.from_kwargs(config_dict)
 
-    # Create a funciton returns dict of the object
-    def dump(self) -> dict:
-        # Serialize the object to a dictionary
-        return to_serializable_dict(self)
-
-    @staticmethod
-    def load(data: dict) -> "BrowserConfig":
-        # Deserialize the object from a dictionary
-        config = from_serializable_dict(data)
-        if isinstance(config, BrowserConfig):
-            return config
-        return BrowserConfig.from_kwargs(config)
-
-
-class HTTPCrawlerConfig:
-    """HTTP-specific crawler configuration"""
-
-    method: str = "GET"
-    headers: Optional[Dict[str, str]] = None
-    data: Optional[Dict[str, Any]] = None
-    json: Optional[Dict[str, Any]] = None
-    follow_redirects: bool = True
-    verify_ssl: bool = True
-
-    def __init__(
-        self,
-        method: str = "GET",
-        headers: Optional[Dict[str, str]] = None,
-        data: Optional[Dict[str, Any]] = None,
-        json: Optional[Dict[str, Any]] = None,
-        follow_redirects: bool = True,
-        verify_ssl: bool = True,
-    ):
-        self.method = method
-        self.headers = headers
-        self.data = data
-        self.json = json
-        self.follow_redirects = follow_redirects
-        self.verify_ssl = verify_ssl
-
-    @staticmethod
-    def from_kwargs(kwargs: dict) -> "HTTPCrawlerConfig":
-        return HTTPCrawlerConfig(
-            method=kwargs.get("method", "GET"),
-            headers=kwargs.get("headers"),
-            data=kwargs.get("data"),
-            json=kwargs.get("json"),
-            follow_redirects=kwargs.get("follow_redirects", True),
-            verify_ssl=kwargs.get("verify_ssl", True),
-        )
-
-    def to_dict(self):
-        return {
-            "method": self.method,
-            "headers": self.headers,
-            "data": self.data,
-            "json": self.json,
-            "follow_redirects": self.follow_redirects,
-            "verify_ssl": self.verify_ssl,
-        }
-
-    def clone(self, **kwargs):
-        """Create a copy of this configuration with updated values.
-
-        Args:
-            **kwargs: Key-value pairs of configuration options to update
-
-        Returns:
-            HTTPCrawlerConfig: A new instance with the specified updates
-        """
-        config_dict = self.to_dict()
-        config_dict.update(kwargs)
-        return HTTPCrawlerConfig.from_kwargs(config_dict)
-
-    def dump(self) -> dict:
-        return to_serializable_dict(self)
-
-    @staticmethod
-    def load(data: dict) -> "HTTPCrawlerConfig":
-        config = from_serializable_dict(data)
-        if isinstance(config, HTTPCrawlerConfig):
-            return config
-        return HTTPCrawlerConfig.from_kwargs(config)
-
-class CrawlerRunConfig():
-    _UNWANTED_PROPS = {
-        'disable_cache' : 'Instead, use cache_mode=CacheMode.DISABLED',
-        'bypass_cache' : 'Instead, use cache_mode=CacheMode.BYPASS',
-        'no_cache_read' : 'Instead, use cache_mode=CacheMode.WRITE_ONLY',
-        'no_cache_write' : 'Instead, use cache_mode=CacheMode.READ_ONLY',
-    }
 
+class CrawlerRunConfig:
     """
     Configuration class for controlling how the crawler runs each crawl operation.
     This includes parameters for content extraction, page manipulation, waiting conditions,
@@ -481,9 +251,6 @@ class CrawlerRunConfig():
     By using this class, you have a single place to understand and adjust the crawling options.
 
     Attributes:
-        # Deep Crawl Parameters
-        deep_crawl_strategy (DeepCrawlStrategy or None): Strategy to use for deep crawling.
-
         # Content Processing Parameters
         word_count_threshold (int): Minimum word count threshold before processing content.
                                     Default: MIN_WORD_THRESHOLD (typically 200).
@@ -493,6 +260,8 @@ class CrawlerRunConfig():
                                               Default: RegexChunking().
         markdown_generator (MarkdownGenerationStrategy): Strategy for generating markdown.
                                                          Default: None.
+        content_filter (RelevantContentFilter or None): Optional filter to prune irrelevant content.
+                                                        Default: None.
         only_text (bool): If True, attempt to extract text-only content where applicable.
                           Default: False.
         css_selector (str or None): CSS selector to extract a specific portion of the page.
@@ -503,8 +272,6 @@ class CrawlerRunConfig():
                                          Default: None.
         keep_data_attributes (bool): If True, retain `data-*` attributes while removing unwanted attributes.
                                      Default: False.
-        keep_attrs (list of str): List of HTML attributes to keep during processing.
-                                      Default: [].
         remove_forms (bool): If True, remove all `<form>` elements from the HTML.
                              Default: False.
         prettiify (bool): If True, apply `fast_format_html` to produce prettified HTML output.
@@ -516,12 +283,10 @@ class CrawlerRunConfig():
         proxy_config (dict or None): Detailed proxy configuration, e.g. {"server": "...", "username": "..."}.
                                      If None, no additional proxy config. Default: None.
 
-        # SSL Parameters
-        fetch_ssl_certificate: bool = False,
         # Caching Parameters
         cache_mode (CacheMode or None): Defines how caching is handled.
                                         If None, defaults to CacheMode.ENABLED internally.
-                                        Default: CacheMode.BYPASS.
+                                        Default: None.
         session_id (str or None): Optional session ID to persist the browser context and the created
                                   page instance. If the ID already exists, the crawler does not
                                   create a new page and uses the current page to preserve the state.
@@ -599,14 +364,10 @@ class CrawlerRunConfig():
                                                     Default: SOCIAL_MEDIA_DOMAINS (from config).
         exclude_external_links (bool): If True, exclude all external links from the results.
                                        Default: False.
-        exclude_internal_links (bool): If True, exclude internal links from the results.
-                                       Default: False.
         exclude_social_media_links (bool): If True, exclude links pointing to social media domains.
                                            Default: False.
         exclude_domains (list of str): List of specific domains to exclude from results.
                                        Default: [].
-        exclude_internal_links (bool): If True, exclude internal links from the results.
-                                       Default: False.
 
         # Debugging and Logging Parameters
         verbose (bool): Enable verbose logging.
@@ -614,27 +375,19 @@ class CrawlerRunConfig():
         log_console (bool): If True, log console messages from the page.
                             Default: False.
 
-        # HTTP Crwler Strategy Parameters
-        method (str): HTTP method to use for the request, when using AsyncHTTPCrwalerStrategy.
-                        Default: "GET".
-        data (dict): Data to send in the request body, when using AsyncHTTPCrwalerStrategy.
-                        Default: None.
-        json (dict): JSON data to send in the request body, when using AsyncHTTPCrwalerStrategy.
-
-        # Connection Parameters
+        # Streaming Parameters
         stream (bool): If True, enables streaming of crawled URLs as they are processed when used with arun_many.
                       Default: False.
 
+        # Optional Parameters
+        stream (bool): If True, stream the page content as it is being loaded.
+        url: str = None  # This is not a compulsory parameter
         check_robots_txt (bool): Whether to check robots.txt rules before crawling. Default: False
-                                 Default: False.
-        user_agent (str): Custom User-Agent string to use.
-                          Default: None.
-        user_agent_mode (str or None): Mode for generating the user agent (e.g., "random"). If None, use the provided user_agent as-is.
-                                       Default: None.
+        user_agent (str): Custom User-Agent string to use. Default: None
+        user_agent_mode (str or None): Mode for generating the user agent (e.g., "random"). If None, use the provided
+                                       user_agent as-is. Default: None.
         user_agent_generator_config (dict or None): Configuration for user agent generation if user_agent_mode is set.
                                                     Default: None.
-
-        url: str = None  # This is not a compulsory parameter
     """
 
     def __init__(
@@ -643,23 +396,23 @@ class CrawlerRunConfig():
         word_count_threshold: int = MIN_WORD_THRESHOLD,
         extraction_strategy: ExtractionStrategy = None,
         chunking_strategy: ChunkingStrategy = RegexChunking(),
+        deep_crawl_strategy: DeepCrawlStrategy = None,
         markdown_generator: MarkdownGenerationStrategy = None,
+        content_filter : RelevantContentFilter = None,
         only_text: bool = False,
         css_selector: str = None,
         excluded_tags: list = None,
         excluded_selector: str = None,
         keep_data_attributes: bool = False,
-        keep_attrs: list = None,
         remove_forms: bool = False,
         prettiify: bool = False,
         parser_type: str = "lxml",
         scraping_strategy: ContentScrapingStrategy = None,
         proxy_config: dict = None,
-        proxy_rotation_strategy: Optional[ProxyRotationStrategy] = None,
         # SSL Parameters
         fetch_ssl_certificate: bool = False,
         # Caching Parameters
-        cache_mode: CacheMode = CacheMode.BYPASS,
+        cache_mode: CacheMode =None,
         session_id: str = None,
         bypass_cache: bool = False,
         disable_cache: bool = False,
@@ -700,41 +453,36 @@ class CrawlerRunConfig():
         exclude_external_links: bool = False,
         exclude_social_media_links: bool = False,
         exclude_domains: list = None,
-        exclude_internal_links: bool = False,
         # Debugging and Logging Parameters
         verbose: bool = True,
         log_console: bool = False,
-        # Connection Parameters
-        method: str = "GET",
+        # Streaming Parameters
         stream: bool = False,
         url: str = None,
         check_robots_txt: bool = False,
         user_agent: str = None,
         user_agent_mode: str = None,
         user_agent_generator_config: dict = {},
-        # Deep Crawl Parameters
-        deep_crawl_strategy: Optional[DeepCrawlStrategy] = None,
     ):
-        # TODO: Planning to set properties dynamically based on the __init__ signature
         self.url = url
 
         # Content Processing Parameters
         self.word_count_threshold = word_count_threshold
         self.extraction_strategy = extraction_strategy
         self.chunking_strategy = chunking_strategy
+        self.deep_crawl_strategy = deep_crawl_strategy
         self.markdown_generator = markdown_generator
+        self.content_filter = content_filter
         self.only_text = only_text
         self.css_selector = css_selector
         self.excluded_tags = excluded_tags or []
         self.excluded_selector = excluded_selector or ""
         self.keep_data_attributes = keep_data_attributes
-        self.keep_attrs = keep_attrs or []
         self.remove_forms = remove_forms
         self.prettiify = prettiify
         self.parser_type = parser_type
         self.scraping_strategy = scraping_strategy or WebScrapingStrategy()
         self.proxy_config = proxy_config
-        self.proxy_rotation_strategy = proxy_rotation_strategy
 
         # SSL Parameters
         self.fetch_ssl_certificate = fetch_ssl_certificate
@@ -787,15 +535,13 @@ class CrawlerRunConfig():
         self.exclude_external_links = exclude_external_links
         self.exclude_social_media_links = exclude_social_media_links
         self.exclude_domains = exclude_domains or []
-        self.exclude_internal_links = exclude_internal_links
 
         # Debugging and Logging Parameters
         self.verbose = verbose
         self.log_console = log_console
 
-        # Connection Parameters
+        # Streaming Parameters
         self.stream = stream
-        self.method = method
 
         # Robots.txt Handling Parameters
         self.check_robots_txt = check_robots_txt
@@ -812,6 +558,14 @@ class CrawlerRunConfig():
             raise ValueError(
                 "extraction_strategy must be an instance of ExtractionStrategy"
             )
+        
+        if self.deep_crawl_strategy is not None and not isinstance(
+            self.deep_crawl_strategy, DeepCrawlStrategy
+        ):
+            raise ValueError(
+            "deep_crawl_strategy must be an instance of DeepCrawlStrategy"
+            )
+
         if self.chunking_strategy is not None and not isinstance(
             self.chunking_strategy, ChunkingStrategy
         ):
@@ -823,27 +577,6 @@ class CrawlerRunConfig():
         if self.chunking_strategy is None:
             self.chunking_strategy = RegexChunking()
 
-        # Deep Crawl Parameters
-        self.deep_crawl_strategy = deep_crawl_strategy
-
-
-    def __getattr__(self, name):
-        """Handle attribute access."""
-        if name in self._UNWANTED_PROPS:
-            raise AttributeError(f"Getting '{name}' is deprecated. {self._UNWANTED_PROPS[name]}")
-        raise AttributeError(f"'{self.__class__.__name__}' has no attribute '{name}'")
-
-    def __setattr__(self, name, value):
-        """Handle attribute setting."""
-        # TODO: Planning to set properties dynamically based on the __init__ signature
-        sig = inspect.signature(self.__init__)
-        all_params = sig.parameters  # Dictionary of parameter names and their details
-
-        if name in self._UNWANTED_PROPS and value is not all_params[name].default:
-            raise AttributeError(f"Setting '{name}' is deprecated. {self._UNWANTED_PROPS[name]}")
-        
-        super().__setattr__(name, value)
-
     @staticmethod
     def from_kwargs(kwargs: dict) -> "CrawlerRunConfig":
         return CrawlerRunConfig(
@@ -851,23 +584,23 @@ class CrawlerRunConfig():
             word_count_threshold=kwargs.get("word_count_threshold", 200),
             extraction_strategy=kwargs.get("extraction_strategy"),
             chunking_strategy=kwargs.get("chunking_strategy", RegexChunking()),
+            deep_crawl_strategy=kwargs.get("deep_crawl_strategy"),
             markdown_generator=kwargs.get("markdown_generator"),
+            content_filter=kwargs.get("content_filter"),
             only_text=kwargs.get("only_text", False),
             css_selector=kwargs.get("css_selector"),
             excluded_tags=kwargs.get("excluded_tags", []),
             excluded_selector=kwargs.get("excluded_selector", ""),
             keep_data_attributes=kwargs.get("keep_data_attributes", False),
-            keep_attrs=kwargs.get("keep_attrs", []),
             remove_forms=kwargs.get("remove_forms", False),
             prettiify=kwargs.get("prettiify", False),
             parser_type=kwargs.get("parser_type", "lxml"),
             scraping_strategy=kwargs.get("scraping_strategy"),
             proxy_config=kwargs.get("proxy_config"),
-            proxy_rotation_strategy=kwargs.get("proxy_rotation_strategy"),
             # SSL Parameters
             fetch_ssl_certificate=kwargs.get("fetch_ssl_certificate", False),
             # Caching Parameters
-            cache_mode=kwargs.get("cache_mode", CacheMode.BYPASS),
+            cache_mode=kwargs.get("cache_mode"),
             session_id=kwargs.get("session_id"),
             bypass_cache=kwargs.get("bypass_cache", False),
             disable_cache=kwargs.get("disable_cache", False),
@@ -917,53 +650,37 @@ class CrawlerRunConfig():
             exclude_external_links=kwargs.get("exclude_external_links", False),
             exclude_social_media_links=kwargs.get("exclude_social_media_links", False),
             exclude_domains=kwargs.get("exclude_domains", []),
-            exclude_internal_links=kwargs.get("exclude_internal_links", False),
             # Debugging and Logging Parameters
             verbose=kwargs.get("verbose", True),
             log_console=kwargs.get("log_console", False),
-            # Connection Parameters
-            method=kwargs.get("method", "GET"),
+            # Streaming Parameters
             stream=kwargs.get("stream", False),
+            url=kwargs.get("url"),
             check_robots_txt=kwargs.get("check_robots_txt", False),
             user_agent=kwargs.get("user_agent"),
             user_agent_mode=kwargs.get("user_agent_mode"),
             user_agent_generator_config=kwargs.get("user_agent_generator_config", {}),
-            # Deep Crawl Parameters
-            deep_crawl_strategy=kwargs.get("deep_crawl_strategy"),
-            url=kwargs.get("url"),
         )
 
     # Create a funciton returns dict of the object
-    def dump(self) -> dict:
-        # Serialize the object to a dictionary
-        return to_serializable_dict(self)
-
-    @staticmethod
-    def load(data: dict) -> "CrawlerRunConfig":
-        # Deserialize the object from a dictionary
-        config = from_serializable_dict(data)
-        if isinstance(config, CrawlerRunConfig):
-            return config
-        return CrawlerRunConfig.from_kwargs(config)
-
     def to_dict(self):
         return {
             "word_count_threshold": self.word_count_threshold,
             "extraction_strategy": self.extraction_strategy,
             "chunking_strategy": self.chunking_strategy,
+            "deep_crawl_strategy": self.deep_crawl_strategy,
             "markdown_generator": self.markdown_generator,
+            "content_filter": self.content_filter,
             "only_text": self.only_text,
             "css_selector": self.css_selector,
             "excluded_tags": self.excluded_tags,
             "excluded_selector": self.excluded_selector,
             "keep_data_attributes": self.keep_data_attributes,
-            "keep_attrs": self.keep_attrs,
             "remove_forms": self.remove_forms,
             "prettiify": self.prettiify,
             "parser_type": self.parser_type,
             "scraping_strategy": self.scraping_strategy,
             "proxy_config": self.proxy_config,
-            "proxy_rotation_strategy": self.proxy_rotation_strategy,
             "fetch_ssl_certificate": self.fetch_ssl_certificate,
             "cache_mode": self.cache_mode,
             "session_id": self.session_id,
@@ -1002,33 +719,30 @@ class CrawlerRunConfig():
             "exclude_external_links": self.exclude_external_links,
             "exclude_social_media_links": self.exclude_social_media_links,
             "exclude_domains": self.exclude_domains,
-            "exclude_internal_links": self.exclude_internal_links,
             "verbose": self.verbose,
             "log_console": self.log_console,
-            "method": self.method,
             "stream": self.stream,
+            "url": self.url,
             "check_robots_txt": self.check_robots_txt,
             "user_agent": self.user_agent,
             "user_agent_mode": self.user_agent_mode,
             "user_agent_generator_config": self.user_agent_generator_config,
-            "deep_crawl_strategy": self.deep_crawl_strategy,
-            "url": self.url,
         }
 
     def clone(self, **kwargs):
         """Create a copy of this configuration with updated values.
-
+        
         Args:
             **kwargs: Key-value pairs of configuration options to update
-
+            
         Returns:
             CrawlerRunConfig: A new instance with the specified updates
-
+            
         Example:
             ```python
             # Create a new config with streaming enabled
             stream_config = config.clone(stream=True)
-
+            
             # Create a new config with multiple updates
             new_config = config.clone(
                 stream=True,
@@ -1040,52 +754,3 @@ class CrawlerRunConfig():
         config_dict = self.to_dict()
         config_dict.update(kwargs)
         return CrawlerRunConfig.from_kwargs(config_dict)
-
-
-class LlmConfig:
-    def __init__(
-        self,
-        provider: str = DEFAULT_PROVIDER,
-        api_token: Optional[str] = None,
-        base_url: Optional[str] = None,
-    ):
-        """Configuaration class for LLM provider and API token."""
-        self.provider = provider
-        if api_token and not api_token.startswith("env:"):
-            self.api_token = api_token
-        elif api_token and api_token.startswith("env:"):
-            self.api_token = os.getenv(api_token[4:])
-        else:
-            self.api_token = PROVIDER_MODELS.get(provider, "no-token") or os.getenv(
-                "OPENAI_API_KEY"
-            )
-        self.base_url = base_url
-
-
-    @staticmethod
-    def from_kwargs(kwargs: dict) -> "LlmConfig":
-        return LlmConfig(
-            provider=kwargs.get("provider", DEFAULT_PROVIDER),
-            api_token=kwargs.get("api_token"),
-            base_url=kwargs.get("base_url"),
-        )
-
-    def to_dict(self):
-        return {
-            "provider": self.provider,
-            "api_token": self.api_token,
-            "base_url": self.base_url
-        }
-
-    def clone(self, **kwargs):
-        """Create a copy of this configuration with updated values.
-
-        Args:
-            **kwargs: Key-value pairs of configuration options to update
-
-        Returns:
-            LLMConfig: A new instance with the specified updates
-        """
-        config_dict = self.to_dict()
-        config_dict.update(kwargs)
-        return LlmConfig.from_kwargs(config_dict)

crawl4ai/async_database.py

@@ -7,9 +7,9 @@ from contextlib import asynccontextmanager
 import logging
 import json  # Added for serialization/deserialization
 from .utils import ensure_content_dirs, generate_content_hash
-from .models import CrawlResult, MarkdownGenerationResult, StringCompatibleMarkdown
+from .models import CrawlResult, MarkdownGenerationResult
 import aiofiles
-from .utils import VersionManager
+from .version_manager import VersionManager
 from .async_logger import AsyncLogger
 from .utils import get_error_context, create_box_message
 
@@ -336,17 +336,12 @@ class AsyncDatabaseManager:
                     except json.JSONDecodeError:
                         # Very UGLY, never mention it to me please
                         if field == "markdown" and isinstance(row_dict[field], str):
-                            row_dict[field] = MarkdownGenerationResult(
-                                raw_markdown=row_dict[field] or "",
-                                markdown_with_citations="",
-                                references_markdown="",
-                                fit_markdown="",
-                                fit_html="",
-                            )
+                            row_dict[field] = row_dict[field]
                         else:
                             row_dict[field] = {}
 
                 if isinstance(row_dict["markdown"], Dict):
+                    row_dict["markdown_v2"] = row_dict["markdown"]
                     if row_dict["markdown"].get("raw_markdown"):
                         row_dict["markdown"] = row_dict["markdown"]["raw_markdown"]
 
@@ -363,7 +358,7 @@ class AsyncDatabaseManager:
                 # Remove any fields not in CrawlResult model
                 valid_fields = CrawlResult.__annotations__.keys()
                 filtered_dict = {k: v for k, v in row_dict.items() if k in valid_fields}
-                filtered_dict["markdown"] = row_dict["markdown"]
+
                 return CrawlResult(**filtered_dict)
 
         try:
@@ -389,16 +384,16 @@ class AsyncDatabaseManager:
         }
 
         try:
-            if isinstance(result.markdown, StringCompatibleMarkdown):
-                content_map["markdown"] = (
-                    result.markdown,
-                    "markdown",
-                )
-            elif isinstance(result.markdown, MarkdownGenerationResult):
+            if isinstance(result.markdown, MarkdownGenerationResult):
                 content_map["markdown"] = (
                     result.markdown.model_dump_json(),
                     "markdown",
                 )
+            elif hasattr(result, "markdown_v2"):
+                content_map["markdown"] = (
+                    result.markdown_v2.model_dump_json(),
+                    "markdown",
+                )
             elif isinstance(result.markdown, str):
                 markdown_result = MarkdownGenerationResult(raw_markdown=result.markdown)
                 content_map["markdown"] = (

crawl4ai/async_dispatcher.py

@@ -13,7 +13,7 @@ from rich.live import Live
 from rich.table import Table
 from rich.console import Console
 from rich import box
-from datetime import timedelta
+from datetime import datetime, timedelta
 from collections.abc import AsyncGenerator
 import time
 import psutil
@@ -24,7 +24,6 @@ from urllib.parse import urlparse
 import random
 from abc import ABC, abstractmethod
 
-from math import inf as infinity
 
 
 class RateLimiter:
@@ -98,7 +97,7 @@ class CrawlerMonitor:
         self.display_mode = display_mode
         self.stats: Dict[str, CrawlStats] = {}
         self.process = psutil.Process()
-        self.start_time = time.time()
+        self.start_time = datetime.now()
         self.live = Live(self._create_table(), refresh_per_second=2)
 
     def start(self):
@@ -152,7 +151,7 @@ class CrawlerMonitor:
         )
 
         # Duration
-        duration = time.time() - self.start_time
+        duration = datetime.now() - self.start_time
 
         # Create status row
         table.add_column("Status", style="bold cyan")
@@ -163,22 +162,22 @@ class CrawlerMonitor:
         table.add_row(
             "[yellow]In Queue[/yellow]",
             str(queued),
-            f"{(queued / total_tasks * 100):.1f}%" if total_tasks > 0 else "0%",
+            f"{(queued/total_tasks*100):.1f}%" if total_tasks > 0 else "0%",
         )
         table.add_row(
             "[blue]In Progress[/blue]",
             str(in_progress),
-            f"{(in_progress / total_tasks * 100):.1f}%" if total_tasks > 0 else "0%",
+            f"{(in_progress/total_tasks*100):.1f}%" if total_tasks > 0 else "0%",
         )
         table.add_row(
             "[green]Completed[/green]",
             str(completed),
-            f"{(completed / total_tasks * 100):.1f}%" if total_tasks > 0 else "0%",
+            f"{(completed/total_tasks*100):.1f}%" if total_tasks > 0 else "0%",
         )
         table.add_row(
             "[red]Failed[/red]",
             str(failed),
-            f"{(failed / total_tasks * 100):.1f}%" if total_tasks > 0 else "0%",
+            f"{(failed/total_tasks*100):.1f}%" if total_tasks > 0 else "0%",
         )
 
         # Add memory information
@@ -194,7 +193,7 @@ class CrawlerMonitor:
         )
         table.add_row(
             "[yellow]Runtime[/yellow]",
-            str(timedelta(seconds=int(duration))),
+            str(timedelta(seconds=int(duration.total_seconds()))),
             "",
         )
 
@@ -237,7 +236,7 @@ class CrawlerMonitor:
             f"{self.process.memory_info().rss / (1024 * 1024):.1f}",
             str(
                 timedelta(
-                    seconds=int(time.time() - self.start_time)
+                    seconds=int((datetime.now() - self.start_time).total_seconds())
                 )
             ),
             f"✓{completed_count} ✗{failed_count}",
@@ -252,7 +251,7 @@ class CrawlerMonitor:
             key=lambda x: (
                 x.status != CrawlStatus.IN_PROGRESS,
                 x.status != CrawlStatus.QUEUED,
-                x.end_time or infinity,
+                x.end_time or datetime.max,
             ),
         )[: self.max_visible_rows]
 
@@ -339,7 +338,7 @@ class MemoryAdaptiveDispatcher(BaseDispatcher):
         config: CrawlerRunConfig,
         task_id: str,
     ) -> CrawlerTaskResult:
-        start_time = time.time()
+        start_time = datetime.now()
         error_message = ""
         memory_usage = peak_memory = 0.0
 
@@ -372,7 +371,7 @@ class MemoryAdaptiveDispatcher(BaseDispatcher):
                         memory_usage=memory_usage,
                         peak_memory=peak_memory,
                         start_time=start_time,
-                        end_time=time.time(),
+                        end_time=datetime.now(),
                         error_message=error_message,
                     )
                     await self.result_queue.put(result)
@@ -394,7 +393,7 @@ class MemoryAdaptiveDispatcher(BaseDispatcher):
             )
 
         finally:
-            end_time = time.time()
+            end_time = datetime.now()
             if self.monitor:
                 self.monitor.update_task(
                     task_id,
@@ -421,59 +420,59 @@ class MemoryAdaptiveDispatcher(BaseDispatcher):
         urls: List[str],
         crawler: "AsyncWebCrawler",  # noqa: F821
         config: CrawlerRunConfig,
-    ) -> List[CrawlerTaskResult]:
-        self.crawler = crawler
+        ) -> List[CrawlerTaskResult]:
+            self.crawler = crawler
 
-        if self.monitor:
-            self.monitor.start()
+            if self.monitor:
+                self.monitor.start()
 
-        try:
-            pending_tasks = []
-            active_tasks = []
-            task_queue = []
+            try:
+                pending_tasks = []
+                active_tasks = []
+                task_queue = []
 
-            for url in urls:
-                task_id = str(uuid.uuid4())
-                if self.monitor:
-                    self.monitor.add_task(task_id, url)
-                task_queue.append((url, task_id))
+                for url in urls:
+                    task_id = str(uuid.uuid4())
+                    if self.monitor:
+                        self.monitor.add_task(task_id, url)
+                    task_queue.append((url, task_id))
 
-            while task_queue or active_tasks:
-                wait_start_time = time.time()
-                while len(active_tasks) < self.max_session_permit and task_queue:
-                    if psutil.virtual_memory().percent >= self.memory_threshold_percent:
-                        # Check if we've exceeded the timeout
-                        if time.time() - wait_start_time > self.memory_wait_timeout:
-                            raise MemoryError(
-                                f"Memory usage above threshold ({self.memory_threshold_percent}%) for more than {self.memory_wait_timeout} seconds"
-                            )
+                while task_queue or active_tasks:
+                    wait_start_time = time.time()
+                    while len(active_tasks) < self.max_session_permit and task_queue:
+                        if psutil.virtual_memory().percent >= self.memory_threshold_percent:
+                            # Check if we've exceeded the timeout
+                            if time.time() - wait_start_time > self.memory_wait_timeout:
+                                raise MemoryError(
+                                    f"Memory usage above threshold ({self.memory_threshold_percent}%) for more than {self.memory_wait_timeout} seconds"
+                                )
+                            await asyncio.sleep(self.check_interval)
+                            continue
+
+                        url, task_id = task_queue.pop(0)
+                        task = asyncio.create_task(self.crawl_url(url, config, task_id))
+                        active_tasks.append(task)
+
+                    if not active_tasks:
                         await asyncio.sleep(self.check_interval)
                         continue
 
-                    url, task_id = task_queue.pop(0)
-                    task = asyncio.create_task(self.crawl_url(url, config, task_id))
-                    active_tasks.append(task)
+                    done, pending = await asyncio.wait(
+                        active_tasks, return_when=asyncio.FIRST_COMPLETED
+                    )
 
-                if not active_tasks:
-                    await asyncio.sleep(self.check_interval)
-                    continue
+                    pending_tasks.extend(done)
+                    active_tasks = list(pending)
 
-                done, pending = await asyncio.wait(
-                    active_tasks, return_when=asyncio.FIRST_COMPLETED
-                )
-
-                pending_tasks.extend(done)
-                active_tasks = list(pending)
-
-            return await asyncio.gather(*pending_tasks)
-        finally:
-            if self.monitor:
-                self.monitor.stop()
+                return await asyncio.gather(*pending_tasks)
+            finally:
+                if self.monitor:
+                    self.monitor.stop()
 
     async def run_urls_stream(
         self,
         urls: List[str],
-        crawler: "AsyncWebCrawler", # noqa: F821
+        crawler: "AsyncWebCrawler",
         config: CrawlerRunConfig,
     ) -> AsyncGenerator[CrawlerTaskResult, None]:
         self.crawler = crawler
@@ -510,7 +509,9 @@ class MemoryAdaptiveDispatcher(BaseDispatcher):
                 # Wait for any task to complete and yield results
                 if active_tasks:
                     done, pending = await asyncio.wait(
-                        active_tasks, timeout=0.1, return_when=asyncio.FIRST_COMPLETED
+                        active_tasks,
+                        timeout=0.1,
+                        return_when=asyncio.FIRST_COMPLETED
                     )
                     for completed_task in done:
                         result = await completed_task
@@ -524,7 +525,6 @@ class MemoryAdaptiveDispatcher(BaseDispatcher):
             if self.monitor:
                 self.monitor.stop()
 
-
 class SemaphoreDispatcher(BaseDispatcher):
     def __init__(
         self,
@@ -544,7 +544,7 @@ class SemaphoreDispatcher(BaseDispatcher):
         task_id: str,
         semaphore: asyncio.Semaphore = None,
     ) -> CrawlerTaskResult:
-        start_time = time.time()
+        start_time = datetime.now()
         error_message = ""
         memory_usage = peak_memory = 0.0
 
@@ -577,7 +577,7 @@ class SemaphoreDispatcher(BaseDispatcher):
                             memory_usage=memory_usage,
                             peak_memory=peak_memory,
                             start_time=start_time,
-                            end_time=time.time(),
+                            end_time=datetime.now(),
                             error_message=error_message,
                         )
 
@@ -597,7 +597,7 @@ class SemaphoreDispatcher(BaseDispatcher):
             )
 
         finally:
-            end_time = time.time()
+            end_time = datetime.now()
             if self.monitor:
                 self.monitor.update_task(
                     task_id,

crawl4ai/async_dispatcher_.py

@@ -0,0 +1,588 @@
+from typing import Dict, Optional, List, Tuple
+from .async_configs import CrawlerRunConfig
+from .models import (
+    CrawlResult,
+    CrawlerTaskResult,
+    CrawlStatus,
+    DisplayMode,
+    CrawlStats,
+    DomainState,
+)
+
+from rich.live import Live
+from rich.table import Table
+from rich.console import Console
+from rich import box
+from datetime import datetime, timedelta
+
+import time
+import psutil
+import asyncio
+import uuid
+
+from urllib.parse import urlparse
+import random
+from abc import ABC, abstractmethod
+
+
+class RateLimiter:
+    def __init__(
+        self,
+        base_delay: Tuple[float, float] = (1.0, 3.0),
+        max_delay: float = 60.0,
+        max_retries: int = 3,
+        rate_limit_codes: List[int] = None,
+    ):
+        self.base_delay = base_delay
+        self.max_delay = max_delay
+        self.max_retries = max_retries
+        self.rate_limit_codes = rate_limit_codes or [429, 503]
+        self.domains: Dict[str, DomainState] = {}
+
+    def get_domain(self, url: str) -> str:
+        return urlparse(url).netloc
+
+    async def wait_if_needed(self, url: str) -> None:
+        domain = self.get_domain(url)
+        state = self.domains.get(domain)
+
+        if not state:
+            self.domains[domain] = DomainState()
+            state = self.domains[domain]
+
+        now = time.time()
+        if state.last_request_time:
+            wait_time = max(0, state.current_delay - (now - state.last_request_time))
+            if wait_time > 0:
+                await asyncio.sleep(wait_time)
+
+        # Random delay within base range if no current delay
+        if state.current_delay == 0:
+            state.current_delay = random.uniform(*self.base_delay)
+
+        state.last_request_time = time.time()
+
+    def update_delay(self, url: str, status_code: int) -> bool:
+        domain = self.get_domain(url)
+        state = self.domains[domain]
+
+        if status_code in self.rate_limit_codes:
+            state.fail_count += 1
+            if state.fail_count > self.max_retries:
+                return False
+
+            # Exponential backoff with random jitter
+            state.current_delay = min(
+                state.current_delay * 2 * random.uniform(0.75, 1.25), self.max_delay
+            )
+        else:
+            # Gradually reduce delay on success
+            state.current_delay = max(
+                random.uniform(*self.base_delay), state.current_delay * 0.75
+            )
+            state.fail_count = 0
+
+        return True
+
+
+class CrawlerMonitor:
+    def __init__(
+        self,
+        max_visible_rows: int = 15,
+        display_mode: DisplayMode = DisplayMode.DETAILED,
+    ):
+        self.console = Console()
+        self.max_visible_rows = max_visible_rows
+        self.display_mode = display_mode
+        self.stats: Dict[str, CrawlStats] = {}
+        self.process = psutil.Process()
+        self.start_time = datetime.now()
+        self.live = Live(self._create_table(), refresh_per_second=2)
+
+    def start(self):
+        self.live.start()
+
+    def stop(self):
+        self.live.stop()
+
+    def add_task(self, task_id: str, url: str):
+        self.stats[task_id] = CrawlStats(
+            task_id=task_id, url=url, status=CrawlStatus.QUEUED
+        )
+        self.live.update(self._create_table())
+
+    def update_task(self, task_id: str, **kwargs):
+        if task_id in self.stats:
+            for key, value in kwargs.items():
+                setattr(self.stats[task_id], key, value)
+            self.live.update(self._create_table())
+
+    def _create_aggregated_table(self) -> Table:
+        """Creates a compact table showing only aggregated statistics"""
+        table = Table(
+            box=box.ROUNDED,
+            title="Crawler Status Overview",
+            title_style="bold magenta",
+            header_style="bold blue",
+            show_lines=True,
+        )
+
+        # Calculate statistics
+        total_tasks = len(self.stats)
+        queued = sum(
+            1 for stat in self.stats.values() if stat.status == CrawlStatus.QUEUED
+        )
+        in_progress = sum(
+            1 for stat in self.stats.values() if stat.status == CrawlStatus.IN_PROGRESS
+        )
+        completed = sum(
+            1 for stat in self.stats.values() if stat.status == CrawlStatus.COMPLETED
+        )
+        failed = sum(
+            1 for stat in self.stats.values() if stat.status == CrawlStatus.FAILED
+        )
+
+        # Memory statistics
+        current_memory = self.process.memory_info().rss / (1024 * 1024)
+        total_task_memory = sum(stat.memory_usage for stat in self.stats.values())
+        peak_memory = max(
+            (stat.peak_memory for stat in self.stats.values()), default=0.0
+        )
+
+        # Duration
+        duration = datetime.now() - self.start_time
+
+        # Create status row
+        table.add_column("Status", style="bold cyan")
+        table.add_column("Count", justify="right")
+        table.add_column("Percentage", justify="right")
+
+        table.add_row("Total Tasks", str(total_tasks), "100%")
+        table.add_row(
+            "[yellow]In Queue[/yellow]",
+            str(queued),
+            f"{(queued/total_tasks*100):.1f}%" if total_tasks > 0 else "0%",
+        )
+        table.add_row(
+            "[blue]In Progress[/blue]",
+            str(in_progress),
+            f"{(in_progress/total_tasks*100):.1f}%" if total_tasks > 0 else "0%",
+        )
+        table.add_row(
+            "[green]Completed[/green]",
+            str(completed),
+            f"{(completed/total_tasks*100):.1f}%" if total_tasks > 0 else "0%",
+        )
+        table.add_row(
+            "[red]Failed[/red]",
+            str(failed),
+            f"{(failed/total_tasks*100):.1f}%" if total_tasks > 0 else "0%",
+        )
+
+        # Add memory information
+        table.add_section()
+        table.add_row(
+            "[magenta]Current Memory[/magenta]", f"{current_memory:.1f} MB", ""
+        )
+        table.add_row(
+            "[magenta]Total Task Memory[/magenta]", f"{total_task_memory:.1f} MB", ""
+        )
+        table.add_row(
+            "[magenta]Peak Task Memory[/magenta]", f"{peak_memory:.1f} MB", ""
+        )
+        table.add_row(
+            "[yellow]Runtime[/yellow]",
+            str(timedelta(seconds=int(duration.total_seconds()))),
+            "",
+        )
+
+        return table
+
+    def _create_detailed_table(self) -> Table:
+        table = Table(
+            box=box.ROUNDED,
+            title="Crawler Performance Monitor",
+            title_style="bold magenta",
+            header_style="bold blue",
+        )
+
+        # Add columns
+        table.add_column("Task ID", style="cyan", no_wrap=True)
+        table.add_column("URL", style="cyan", no_wrap=True)
+        table.add_column("Status", style="bold")
+        table.add_column("Memory (MB)", justify="right")
+        table.add_column("Peak (MB)", justify="right")
+        table.add_column("Duration", justify="right")
+        table.add_column("Info", style="italic")
+
+        # Add summary row
+        total_memory = sum(stat.memory_usage for stat in self.stats.values())
+        active_count = sum(
+            1 for stat in self.stats.values() if stat.status == CrawlStatus.IN_PROGRESS
+        )
+        completed_count = sum(
+            1 for stat in self.stats.values() if stat.status == CrawlStatus.COMPLETED
+        )
+        failed_count = sum(
+            1 for stat in self.stats.values() if stat.status == CrawlStatus.FAILED
+        )
+
+        table.add_row(
+            "[bold yellow]SUMMARY",
+            f"Total: {len(self.stats)}",
+            f"Active: {active_count}",
+            f"{total_memory:.1f}",
+            f"{self.process.memory_info().rss / (1024 * 1024):.1f}",
+            str(
+                timedelta(
+                    seconds=int((datetime.now() - self.start_time).total_seconds())
+                )
+            ),
+            f"✓{completed_count} ✗{failed_count}",
+            style="bold",
+        )
+
+        table.add_section()
+
+        # Add rows for each task
+        visible_stats = sorted(
+            self.stats.values(),
+            key=lambda x: (
+                x.status != CrawlStatus.IN_PROGRESS,
+                x.status != CrawlStatus.QUEUED,
+                x.end_time or datetime.max,
+            ),
+        )[: self.max_visible_rows]
+
+        for stat in visible_stats:
+            status_style = {
+                CrawlStatus.QUEUED: "white",
+                CrawlStatus.IN_PROGRESS: "yellow",
+                CrawlStatus.COMPLETED: "green",
+                CrawlStatus.FAILED: "red",
+            }[stat.status]
+
+            table.add_row(
+                stat.task_id[:8],  # Show first 8 chars of task ID
+                stat.url[:40] + "..." if len(stat.url) > 40 else stat.url,
+                f"[{status_style}]{stat.status.value}[/{status_style}]",
+                f"{stat.memory_usage:.1f}",
+                f"{stat.peak_memory:.1f}",
+                stat.duration,
+                stat.error_message[:40] if stat.error_message else "",
+            )
+
+        return table
+
+    def _create_table(self) -> Table:
+        """Creates the appropriate table based on display mode"""
+        if self.display_mode == DisplayMode.AGGREGATED:
+            return self._create_aggregated_table()
+        return self._create_detailed_table()
+
+
+class BaseDispatcher(ABC):
+    def __init__(
+        self,
+        rate_limiter: Optional[RateLimiter] = None,
+        monitor: Optional[CrawlerMonitor] = None,
+    ):
+        self.crawler = None
+        self._domain_last_hit: Dict[str, float] = {}
+        self.concurrent_sessions = 0
+        self.rate_limiter = rate_limiter
+        self.monitor = monitor
+
+    @abstractmethod
+    async def crawl_url(
+        self,
+        url: str,
+        config: CrawlerRunConfig,
+        task_id: str,
+        monitor: Optional[CrawlerMonitor] = None,
+    ) -> CrawlerTaskResult:
+        pass
+
+    @abstractmethod
+    async def run_urls(
+        self,
+        urls: List[str],
+        crawler: "AsyncWebCrawler",  # noqa: F821
+        config: CrawlerRunConfig,
+        monitor: Optional[CrawlerMonitor] = None,
+    ) -> List[CrawlerTaskResult]:
+        pass
+
+
+class MemoryAdaptiveDispatcher(BaseDispatcher):
+    def __init__(
+        self,
+        memory_threshold_percent: float = 90.0,
+        check_interval: float = 1.0,
+        max_session_permit: int = 20,
+        memory_wait_timeout: float = 300.0,  # 5 minutes default timeout
+        rate_limiter: Optional[RateLimiter] = None,
+        monitor: Optional[CrawlerMonitor] = None,
+    ):
+        super().__init__(rate_limiter, monitor)
+        self.memory_threshold_percent = memory_threshold_percent
+        self.check_interval = check_interval
+        self.max_session_permit = max_session_permit
+        self.memory_wait_timeout = memory_wait_timeout
+
+    async def crawl_url(
+        self,
+        url: str,
+        config: CrawlerRunConfig,
+        task_id: str,
+    ) -> CrawlerTaskResult:
+        start_time = datetime.now()
+        error_message = ""
+        memory_usage = peak_memory = 0.0
+
+        try:
+            if self.monitor:
+                self.monitor.update_task(
+                    task_id, status=CrawlStatus.IN_PROGRESS, start_time=start_time
+                )
+            self.concurrent_sessions += 1
+
+            if self.rate_limiter:
+                await self.rate_limiter.wait_if_needed(url)
+
+            process = psutil.Process()
+            start_memory = process.memory_info().rss / (1024 * 1024)
+            result = await self.crawler.arun(url, config=config, session_id=task_id)
+            end_memory = process.memory_info().rss / (1024 * 1024)
+
+            memory_usage = peak_memory = end_memory - start_memory
+
+            if self.rate_limiter and result.status_code:
+                if not self.rate_limiter.update_delay(url, result.status_code):
+                    error_message = f"Rate limit retry count exceeded for domain {urlparse(url).netloc}"
+                    if self.monitor:
+                        self.monitor.update_task(task_id, status=CrawlStatus.FAILED)
+                    return CrawlerTaskResult(
+                        task_id=task_id,
+                        url=url,
+                        result=result,
+                        memory_usage=memory_usage,
+                        peak_memory=peak_memory,
+                        start_time=start_time,
+                        end_time=datetime.now(),
+                        error_message=error_message,
+                    )
+
+            if not result.success:
+                error_message = result.error_message
+                if self.monitor:
+                    self.monitor.update_task(task_id, status=CrawlStatus.FAILED)
+            elif self.monitor:
+                self.monitor.update_task(task_id, status=CrawlStatus.COMPLETED)
+
+        except Exception as e:
+            error_message = str(e)
+            if self.monitor:
+                self.monitor.update_task(task_id, status=CrawlStatus.FAILED)
+            result = CrawlResult(
+                url=url, html="", metadata={}, success=False, error_message=str(e)
+            )
+
+        finally:
+            end_time = datetime.now()
+            if self.monitor:
+                self.monitor.update_task(
+                    task_id,
+                    end_time=end_time,
+                    memory_usage=memory_usage,
+                    peak_memory=peak_memory,
+                    error_message=error_message,
+                )
+            self.concurrent_sessions -= 1
+
+        return CrawlerTaskResult(
+            task_id=task_id,
+            url=url,
+            result=result,
+            memory_usage=memory_usage,
+            peak_memory=peak_memory,
+            start_time=start_time,
+            end_time=end_time,
+            error_message=error_message,
+        )
+
+    async def run_urls(
+        self,
+        urls: List[str],
+        crawler: "AsyncWebCrawler",  # noqa: F821
+        config: CrawlerRunConfig,
+    ) -> List[CrawlerTaskResult]:
+        self.crawler = crawler
+
+        if self.monitor:
+            self.monitor.start()
+
+        try:
+            pending_tasks = []
+            active_tasks = []
+            task_queue = []
+
+            for url in urls:
+                task_id = str(uuid.uuid4())
+                if self.monitor:
+                    self.monitor.add_task(task_id, url)
+                task_queue.append((url, task_id))
+
+            while task_queue or active_tasks:
+                wait_start_time = time.time()
+                while len(active_tasks) < self.max_session_permit and task_queue:
+                    if psutil.virtual_memory().percent >= self.memory_threshold_percent:
+                        # Check if we've exceeded the timeout
+                        if time.time() - wait_start_time > self.memory_wait_timeout:
+                            raise MemoryError(
+                                f"Memory usage above threshold ({self.memory_threshold_percent}%) for more than {self.memory_wait_timeout} seconds"
+                            )
+                        await asyncio.sleep(self.check_interval)
+                        continue
+
+                    url, task_id = task_queue.pop(0)
+                    task = asyncio.create_task(self.crawl_url(url, config, task_id))
+                    active_tasks.append(task)
+
+                if not active_tasks:
+                    await asyncio.sleep(self.check_interval)
+                    continue
+
+                done, pending = await asyncio.wait(
+                    active_tasks, return_when=asyncio.FIRST_COMPLETED
+                )
+
+                pending_tasks.extend(done)
+                active_tasks = list(pending)
+
+            return await asyncio.gather(*pending_tasks)
+        finally:
+            if self.monitor:
+                self.monitor.stop()
+
+
+class SemaphoreDispatcher(BaseDispatcher):
+    def __init__(
+        self,
+        semaphore_count: int = 5,
+        max_session_permit: int = 20,
+        rate_limiter: Optional[RateLimiter] = None,
+        monitor: Optional[CrawlerMonitor] = None,
+    ):
+        super().__init__(rate_limiter, monitor)
+        self.semaphore_count = semaphore_count
+        self.max_session_permit = max_session_permit
+
+    async def crawl_url(
+        self,
+        url: str,
+        config: CrawlerRunConfig,
+        task_id: str,
+        semaphore: asyncio.Semaphore = None,
+    ) -> CrawlerTaskResult:
+        start_time = datetime.now()
+        error_message = ""
+        memory_usage = peak_memory = 0.0
+
+        try:
+            if self.monitor:
+                self.monitor.update_task(
+                    task_id, status=CrawlStatus.IN_PROGRESS, start_time=start_time
+                )
+
+            if self.rate_limiter:
+                await self.rate_limiter.wait_if_needed(url)
+
+            async with semaphore:
+                process = psutil.Process()
+                start_memory = process.memory_info().rss / (1024 * 1024)
+                result = await self.crawler.arun(url, config=config, session_id=task_id)
+                end_memory = process.memory_info().rss / (1024 * 1024)
+
+                memory_usage = peak_memory = end_memory - start_memory
+
+                if self.rate_limiter and result.status_code:
+                    if not self.rate_limiter.update_delay(url, result.status_code):
+                        error_message = f"Rate limit retry count exceeded for domain {urlparse(url).netloc}"
+                        if self.monitor:
+                            self.monitor.update_task(task_id, status=CrawlStatus.FAILED)
+                        return CrawlerTaskResult(
+                            task_id=task_id,
+                            url=url,
+                            result=result,
+                            memory_usage=memory_usage,
+                            peak_memory=peak_memory,
+                            start_time=start_time,
+                            end_time=datetime.now(),
+                            error_message=error_message,
+                        )
+
+                if not result.success:
+                    error_message = result.error_message
+                    if self.monitor:
+                        self.monitor.update_task(task_id, status=CrawlStatus.FAILED)
+                elif self.monitor:
+                    self.monitor.update_task(task_id, status=CrawlStatus.COMPLETED)
+
+        except Exception as e:
+            error_message = str(e)
+            if self.monitor:
+                self.monitor.update_task(task_id, status=CrawlStatus.FAILED)
+            result = CrawlResult(
+                url=url, html="", metadata={}, success=False, error_message=str(e)
+            )
+
+        finally:
+            end_time = datetime.now()
+            if self.monitor:
+                self.monitor.update_task(
+                    task_id,
+                    end_time=end_time,
+                    memory_usage=memory_usage,
+                    peak_memory=peak_memory,
+                    error_message=error_message,
+                )
+
+        return CrawlerTaskResult(
+            task_id=task_id,
+            url=url,
+            result=result,
+            memory_usage=memory_usage,
+            peak_memory=peak_memory,
+            start_time=start_time,
+            end_time=end_time,
+            error_message=error_message,
+        )
+
+    async def run_urls(
+        self,
+        crawler: "AsyncWebCrawler",  # noqa: F821
+        urls: List[str],
+        config: CrawlerRunConfig,
+    ) -> List[CrawlerTaskResult]:
+        self.crawler = crawler
+        if self.monitor:
+            self.monitor.start()
+
+        try:
+            semaphore = asyncio.Semaphore(self.semaphore_count)
+            tasks = []
+
+            for url in urls:
+                task_id = str(uuid.uuid4())
+                if self.monitor:
+                    self.monitor.add_task(task_id, url)
+                task = asyncio.create_task(
+                    self.crawl_url(url, config, task_id, semaphore)
+                )
+                tasks.append(task)
+
+            return await asyncio.gather(*tasks, return_exceptions=True)
+        finally:
+            if self.monitor:
+                self.monitor.stop()

crawl4ai/async_logger.py

@@ -1,4 +1,3 @@
-from abc import ABC, abstractmethod
 from enum import Enum
 from typing import Optional, Dict, Any
 from colorama import Fore, Style, init
@@ -14,37 +13,7 @@ class LogLevel(Enum):
     ERROR = 5
 
 
-
-class AsyncLoggerBase(ABC):
-    @abstractmethod
-    def debug(self, message: str, tag: str = "DEBUG", **kwargs):
-        pass
-
-    @abstractmethod
-    def info(self, message: str, tag: str = "INFO", **kwargs):
-        pass
-
-    @abstractmethod
-    def success(self, message: str, tag: str = "SUCCESS", **kwargs):
-        pass
-
-    @abstractmethod
-    def warning(self, message: str, tag: str = "WARNING", **kwargs):
-        pass
-
-    @abstractmethod
-    def error(self, message: str, tag: str = "ERROR", **kwargs):
-        pass
-
-    @abstractmethod
-    def url_status(self, url: str, success: bool, timing: float, tag: str = "FETCH", url_length: int = 50):
-        pass
-
-    @abstractmethod
-    def error_status(self, url: str, error: str, tag: str = "ERROR", url_length: int = 50):
-        pass
-
-class AsyncLogger(AsyncLoggerBase):
+class AsyncLogger:
     """
     Asynchronous logger with support for colored console output and file logging.
     Supports templated messages with colored components.
@@ -256,55 +225,3 @@ class AsyncLogger(AsyncLoggerBase):
             tag=tag,
             params={"url": url, "url_length": url_length, "error": error},
         )
-
-class AsyncFileLogger(AsyncLoggerBase):
-    """
-    File-only asynchronous logger that writes logs to a specified file.
-    """
-
-    def __init__(self, log_file: str):
-        """
-        Initialize the file logger.
-
-        Args:
-            log_file: File path for logging
-        """
-        self.log_file = log_file
-        os.makedirs(os.path.dirname(os.path.abspath(log_file)), exist_ok=True)
-
-    def _write_to_file(self, level: str, message: str, tag: str):
-        """Write a message to the log file."""
-        timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S.%f")[:-3]
-        with open(self.log_file, "a", encoding="utf-8") as f:
-            f.write(f"[{timestamp}] [{level}] [{tag}] {message}\n")
-
-    def debug(self, message: str, tag: str = "DEBUG", **kwargs):
-        """Log a debug message to file."""
-        self._write_to_file("DEBUG", message, tag)
-
-    def info(self, message: str, tag: str = "INFO", **kwargs):
-        """Log an info message to file."""
-        self._write_to_file("INFO", message, tag)
-
-    def success(self, message: str, tag: str = "SUCCESS", **kwargs):
-        """Log a success message to file."""
-        self._write_to_file("SUCCESS", message, tag)
-
-    def warning(self, message: str, tag: str = "WARNING", **kwargs):
-        """Log a warning message to file."""
-        self._write_to_file("WARNING", message, tag)
-
-    def error(self, message: str, tag: str = "ERROR", **kwargs):
-        """Log an error message to file."""
-        self._write_to_file("ERROR", message, tag)
-
-    def url_status(self, url: str, success: bool, timing: float, tag: str = "FETCH", url_length: int = 50):
-        """Log URL fetch status to file."""
-        status = "SUCCESS" if success else "FAILED"
-        message = f"{url[:url_length]}... | Status: {status} | Time: {timing:.2f}s"
-        self._write_to_file("URL_STATUS", message, tag)
-
-    def error_status(self, url: str, error: str, tag: str = "ERROR", url_length: int = 50):
-        """Log error status to file."""
-        message = f"{url[:url_length]}... | Error: {error}"
-        self._write_to_file("ERROR", message, tag)

crawl4ai/async_webcrawler.py

@@ -1,7 +1,7 @@
-from .__version__ import __version__ as crawl4ai_version
 import os
 import sys
 import time
+import warnings
 from colorama import Fore
 from pathlib import Path
 from typing import Optional, List
@@ -10,13 +10,19 @@ import asyncio
 
 # from contextlib import nullcontext, asynccontextmanager
 from contextlib import asynccontextmanager
-from .models import CrawlResult, MarkdownGenerationResult, DispatchResult, ScrapingResult
+
+from .models import (
+    CrawlResult,
+    MarkdownGenerationResult,
+    CrawlerTaskResult,
+    DispatchResult,
+)
 from .async_database import async_db_manager
 from .chunking_strategy import *  # noqa: F403
 from .chunking_strategy import RegexChunking, ChunkingStrategy, IdentityChunking
 from .content_filter_strategy import *  # noqa: F403
 from .content_filter_strategy import RelevantContentFilter
-from .extraction_strategy import * # noqa: F403
+from .extraction_strategy import *  # noqa: F403
 from .extraction_strategy import NoExtractionStrategy, ExtractionStrategy
 from .async_crawler_strategy import (
     AsyncCrawlerStrategy,
@@ -28,11 +34,11 @@ from .markdown_generation_strategy import (
     DefaultMarkdownGenerator,
     MarkdownGenerationStrategy,
 )
-from .deep_crawling import DeepCrawlDecorator
-from .async_logger import AsyncLogger, AsyncLoggerBase
+from .async_logger import AsyncLogger
 from .async_configs import BrowserConfig, CrawlerRunConfig
-from .async_dispatcher import * # noqa: F403
+from .async_dispatcher import *  # noqa: F403
 from .async_dispatcher import BaseDispatcher, MemoryAdaptiveDispatcher, RateLimiter
+from .deep_crawl import DeepCrawlStrategy
 
 from .config import MIN_WORD_THRESHOLD
 from .utils import (
@@ -44,10 +50,14 @@ from .utils import (
     RobotsParser,
 )
 
-from typing import Union, AsyncGenerator, TypeVar
+from typing import Union, AsyncGenerator, List, TypeVar
+from collections.abc import AsyncGenerator
 
-CrawlResultT = TypeVar('CrawlResultT', bound=CrawlResult)
-RunManyReturn = Union[CrawlResultT, List[CrawlResultT], AsyncGenerator[CrawlResultT, None]]
+
+from .__version__ import __version__ as crawl4ai_version
+
+CrawlResultT = TypeVar("CrawlResultT", bound=CrawlResult)
+RunManyReturn = Union[List[CrawlResultT], AsyncGenerator[CrawlResultT, None]]
 
 DeepCrawlSingleReturn = Union[List[CrawlResultT], AsyncGenerator[CrawlResultT, None]]
 DeepCrawlManyReturn = Union[
@@ -55,6 +65,7 @@ DeepCrawlManyReturn = Union[
     AsyncGenerator[CrawlResultT, None],
 ]
 
+
 class AsyncWebCrawler:
     """
     Asynchronous web crawler with flexible caching capabilities.
@@ -79,21 +90,31 @@ class AsyncWebCrawler:
         await crawler.close()
         ```
 
+    Migration Guide:
+    Old way (deprecated):
+        crawler = AsyncWebCrawler(always_by_pass_cache=True, browser_type="chromium", headless=True)
+
+    New way (recommended):
+        browser_config = BrowserConfig(browser_type="chromium", headless=True)
+        crawler = AsyncWebCrawler(config=browser_config)
+
+
     Attributes:
         browser_config (BrowserConfig): Configuration object for browser settings.
         crawler_strategy (AsyncCrawlerStrategy): Strategy for crawling web pages.
         logger (AsyncLogger): Logger instance for recording events and errors.
+        always_bypass_cache (bool): Whether to always bypass cache.
         crawl4ai_folder (str): Directory for storing cache.
         base_directory (str): Base directory for storing cache.
         ready (bool): Whether the crawler is ready for use.
 
-    Methods:
-        start(): Start the crawler explicitly without using context manager.
-        close(): Close the crawler explicitly without using context manager.
-        arun(): Run the crawler for a single source: URL (web, local file, or raw HTML).
-        awarmup(): Perform warmup sequence.
-        arun_many(): Run the crawler for multiple sources.
-        aprocess_html(): Process HTML content.
+        Methods:
+            start(): Start the crawler explicitly without using context manager.
+            close(): Close the crawler explicitly without using context manager.
+            arun(): Run the crawler for a single source: URL (web, local file, or raw HTML).
+            awarmup(): Perform warmup sequence.
+            arun_many(): Run the crawler for multiple sources.
+            aprocess_html(): Process HTML content.
 
     Typical Usage:
         async with AsyncWebCrawler() as crawler:
@@ -114,43 +135,81 @@ class AsyncWebCrawler:
 
     def __init__(
         self,
-        crawler_strategy: AsyncCrawlerStrategy = None,
-        config: BrowserConfig = None,
+        crawler_strategy: Optional[AsyncCrawlerStrategy] = None,
+        config: Optional[BrowserConfig] = None,
+        always_bypass_cache: bool = False,
+        always_by_pass_cache: Optional[bool] = None,  # Deprecated parameter
         base_directory: str = str(os.getenv("CRAWL4_AI_BASE_DIRECTORY", Path.home())),
         thread_safe: bool = False,
-        logger: AsyncLoggerBase = None,
         **kwargs,
     ):
         """
         Initialize the AsyncWebCrawler.
 
         Args:
-            crawler_strategy: Strategy for crawling web pages. Default AsyncPlaywrightCrawlerStrategy
-            config: Configuration object for browser settings. Default BrowserConfig()
+            crawler_strategy: Strategy for crawling web pages. If None, will create AsyncPlaywrightCrawlerStrategy
+            config: Configuration object for browser settings. If None, will be created from kwargs
+            always_bypass_cache: Whether to always bypass cache (new parameter)
+            always_by_pass_cache: Deprecated, use always_bypass_cache instead
             base_directory: Base directory for storing cache
             thread_safe: Whether to use thread-safe operations
             **kwargs: Additional arguments for backwards compatibility
         """
         # Handle browser configuration
-        browser_config = config or BrowserConfig()
+        browser_config = config
+        if browser_config is not None:
+            if any(
+                k in kwargs
+                for k in [
+                    "browser_type",
+                    "headless",
+                    "viewport_width",
+                    "viewport_height",
+                ]
+            ):
+                self.logger.warning(
+                    message="Both browser_config and legacy browser parameters provided. browser_config will take precedence.",
+                    tag="WARNING",
+                )
+        else:
+            # Create browser config from kwargs for backwards compatibility
+            browser_config = BrowserConfig.from_kwargs(kwargs)
 
         self.browser_config = browser_config
 
         # Initialize logger first since other components may need it
-        self.logger = logger or AsyncLogger(
+        self.logger = AsyncLogger(
             log_file=os.path.join(base_directory, ".crawl4ai", "crawler.log"),
             verbose=self.browser_config.verbose,
             tag_width=10,
         )
 
         # Initialize crawler strategy
-        params = {k: v for k, v in kwargs.items() if k in ["browser_config", "logger"]}
+        params = {k: v for k, v in kwargs.items() if k in ["browser_congig", "logger"]}
         self.crawler_strategy = crawler_strategy or AsyncPlaywrightCrawlerStrategy(
             browser_config=browser_config,
             logger=self.logger,
             **params,  # Pass remaining kwargs for backwards compatibility
         )
 
+        # If craweler strategy doesnt have logger, use crawler logger
+        if not self.crawler_strategy.logger:
+            self.crawler_strategy.logger = self.logger
+
+        # Handle deprecated cache parameter
+        if always_by_pass_cache is not None:
+            if kwargs.get("warning", True):
+                warnings.warn(
+                    "'always_by_pass_cache' is deprecated and will be removed in version 0.5.0. "
+                    "Use 'always_bypass_cache' instead. "
+                    "Pass warning=False to suppress this warning.",
+                    DeprecationWarning,
+                    stacklevel=2,
+                )
+            self.always_bypass_cache = always_by_pass_cache
+        else:
+            self.always_bypass_cache = always_bypass_cache
+
         # Thread safety setup
         self._lock = asyncio.Lock() if thread_safe else None
 
@@ -164,10 +223,6 @@ class AsyncWebCrawler:
 
         self.ready = False
 
-        # Decorate arun method with deep crawling capabilities
-        self._deep_handler = DeepCrawlDecorator(self)
-        self.arun = self._deep_handler(self.arun)  
-
     async def start(self):
         """
         Start the crawler explicitly without using context manager.
@@ -216,32 +271,32 @@ class AsyncWebCrawler:
 
     @asynccontextmanager
     async def nullcontext(self):
-        """异步空上下文管理器"""
+        """Asynchronous null context manager"""
         yield
 
     async def arun(
         self,
         url: str,
-        config: CrawlerRunConfig = None,
+        config: Optional[CrawlerRunConfig] = None,
         # Legacy parameters maintained for backwards compatibility
-        # word_count_threshold=MIN_WORD_THRESHOLD,
-        # extraction_strategy: ExtractionStrategy = None,
-        # chunking_strategy: ChunkingStrategy = RegexChunking(),
-        # content_filter: RelevantContentFilter = None,
-        # cache_mode: Optional[CacheMode] = None,
+        word_count_threshold=MIN_WORD_THRESHOLD,
+        extraction_strategy: ExtractionStrategy = None,
+        chunking_strategy: ChunkingStrategy = RegexChunking(),
+        content_filter: RelevantContentFilter = None,
+        cache_mode: Optional[CacheMode] = None,
         # Deprecated cache parameters
-        # bypass_cache: bool = False,
-        # disable_cache: bool = False,
-        # no_cache_read: bool = False,
-        # no_cache_write: bool = False,
+        bypass_cache: bool = False,
+        disable_cache: bool = False,
+        no_cache_read: bool = False,
+        no_cache_write: bool = False,
         # Other legacy parameters
-        # css_selector: str = None,
-        # screenshot: bool = False,
-        # pdf: bool = False,
-        # user_agent: str = None,
-        # verbose=True,
+        css_selector: str = None,
+        screenshot: bool = False,
+        pdf: bool = False,
+        user_agent: str = None,
+        verbose=True,
         **kwargs,
-    ) -> RunManyReturn:
+    ) -> Union[CrawlResult, DeepCrawlSingleReturn]:
         """
         Runs the crawler for a single source: URL (web, local file, or raw HTML).
 
@@ -270,47 +325,61 @@ class AsyncWebCrawler:
         Returns:
             CrawlResult: The result of crawling and processing
         """
-        crawler_config = config or CrawlerRunConfig()
+        crawler_config = config
         if not isinstance(url, str) or not url:
             raise ValueError("Invalid URL, make sure the URL is a non-empty string")
 
         async with self._lock or self.nullcontext():
             try:
-                self.logger.verbose = crawler_config.verbose
                 # Handle configuration
                 if crawler_config is not None:
+                    # if any(param is not None for param in [
+                    #     word_count_threshold, extraction_strategy, chunking_strategy,
+                    #     content_filter, cache_mode, css_selector, screenshot, pdf
+                    # ]):
+                    #     self.logger.warning(
+                    #         message="Both crawler_config and legacy parameters provided. crawler_config will take precedence.",
+                    #         tag="WARNING"
+                    #     )
                     config = crawler_config
                 else:
                     # Merge all parameters into a single kwargs dict for config creation
-                    # config_kwargs = {
-                    #     "word_count_threshold": word_count_threshold,
-                    #     "extraction_strategy": extraction_strategy,
-                    #     "chunking_strategy": chunking_strategy,
-                    #     "content_filter": content_filter,
-                    #     "cache_mode": cache_mode,
-                    #     "bypass_cache": bypass_cache,
-                    #     "disable_cache": disable_cache,
-                    #     "no_cache_read": no_cache_read,
-                    #     "no_cache_write": no_cache_write,
-                    #     "css_selector": css_selector,
-                    #     "screenshot": screenshot,
-                    #     "pdf": pdf,
-                    #     "verbose": verbose,
-                    #     **kwargs,
-                    # }
-                    # config = CrawlerRunConfig.from_kwargs(config_kwargs)
-                    pass
+                    config_kwargs = {
+                        "word_count_threshold": word_count_threshold,
+                        "extraction_strategy": extraction_strategy,
+                        "chunking_strategy": chunking_strategy,
+                        "content_filter": content_filter,
+                        "cache_mode": cache_mode,
+                        "bypass_cache": bypass_cache,
+                        "disable_cache": disable_cache,
+                        "no_cache_read": no_cache_read,
+                        "no_cache_write": no_cache_write,
+                        "css_selector": css_selector,
+                        "screenshot": screenshot,
+                        "pdf": pdf,
+                        "verbose": verbose,
+                        **kwargs,
+                    }
+                    config = CrawlerRunConfig.from_kwargs(config_kwargs)
 
                 # Handle deprecated cache parameters
-                # if any([bypass_cache, disable_cache, no_cache_read, no_cache_write]):
-                #     # Convert legacy parameters if cache_mode not provided
-                #     if config.cache_mode is None:
-                #         config.cache_mode = _legacy_to_cache_mode(
-                #             disable_cache=disable_cache,
-                #             bypass_cache=bypass_cache,
-                #             no_cache_read=no_cache_read,
-                #             no_cache_write=no_cache_write,
-                #         )
+                if any([bypass_cache, disable_cache, no_cache_read, no_cache_write]):
+                    if kwargs.get("warning", True):
+                        warnings.warn(
+                            "Cache control boolean flags are deprecated and will be removed in version 0.5.0. "
+                            "Use 'cache_mode' parameter instead.",
+                            DeprecationWarning,
+                            stacklevel=2,
+                        )
+
+                    # Convert legacy parameters if cache_mode not provided
+                    if config.cache_mode is None:
+                        config.cache_mode = _legacy_to_cache_mode(
+                            disable_cache=disable_cache,
+                            bypass_cache=bypass_cache,
+                            no_cache_read=no_cache_read,
+                            no_cache_write=no_cache_write,
+                        )
 
                 # Default to ENABLED if no cache mode specified
                 if config.cache_mode is None:
@@ -318,7 +387,7 @@ class AsyncWebCrawler:
 
                 # Create cache context
                 cache_context = CacheContext(
-                    url, config.cache_mode, False
+                    url, config.cache_mode, self.always_bypass_cache
                 )
 
                 # Initialize processing variables
@@ -329,6 +398,23 @@ class AsyncWebCrawler:
                 extracted_content = None
                 start_time = time.perf_counter()
 
+                if crawler_config.deep_crawl_strategy:
+                    if crawler_config.stream:
+                        return crawler_config.deep_crawl_strategy.arun(
+                            start_url=url,
+                            crawler=self,
+                            crawler_run_config=crawler_config,
+                        )
+                    else:
+                        results = []
+                        async for result in crawler_config.deep_crawl_strategy.arun(
+                            start_url=url,
+                            crawler=self,
+                            crawler_run_config=crawler_config,
+                        ):
+                            results.append(result)
+                        return results
+
                 # Try to get cached result if appropriate
                 if cache_context.should_read():
                     cached_result = await async_db_manager.aget_cached_url(url)
@@ -346,11 +432,7 @@ class AsyncWebCrawler:
                     # If screenshot is requested but its not in cache, then set cache_result to None
                     screenshot_data = cached_result.screenshot
                     pdf_data = cached_result.pdf
-                    # if config.screenshot and not screenshot or config.pdf and not pdf:
-                    if config.screenshot and not screenshot_data:
-                        cached_result = None
-                    
-                    if config.pdf and not pdf_data:
+                    if config.screenshot and not screenshot or config.pdf and not pdf:
                         cached_result = None
 
                     self.logger.url_status(
@@ -360,40 +442,30 @@ class AsyncWebCrawler:
                         tag="FETCH",
                     )
 
-                # Update proxy configuration from rotation strategy if available
-                if config and config.proxy_rotation_strategy:
-                    next_proxy = await config.proxy_rotation_strategy.get_next_proxy()
-                    if next_proxy:
-                        self.logger.info(
-                            message="Switch proxy: {proxy}",
-                            tag="PROXY",
-                            params={"proxy": next_proxy.server},
-                        )
-                        config.proxy_config = next_proxy
-                        # config = config.clone(proxy_config=next_proxy)
-
                 # Fetch fresh content if needed
                 if not cached_result or not html:
                     t1 = time.perf_counter()
 
-                    if config.user_agent:
-                        self.crawler_strategy.update_user_agent(config.user_agent)
+                    if user_agent:
+                        self.crawler_strategy.update_user_agent(user_agent)
 
                     # Check robots.txt if enabled
                     if config and config.check_robots_txt:
-                        if not await self.robots_parser.can_fetch(url, self.browser_config.user_agent):
+                        if not await self.robots_parser.can_fetch(
+                            url, self.browser_config.user_agent
+                        ):
                             return CrawlResult(
                                 url=url,
                                 html="",
                                 success=False,
                                 status_code=403,
                                 error_message="Access denied by robots.txt",
-                                response_headers={"X-Robots-Status": "Blocked by robots.txt"}
+                                response_headers={
+                                    "X-Robots-Status": "Blocked by robots.txt"
+                                },
                             )
 
-                    ##############################
-                    # Call CrawlerStrategy.crawl #
-                    ##############################
+                    # Pass config to crawl method
                     async_response = await self.crawler_strategy.crawl(
                         url,
                         config=config,  # Pass the entire config object
@@ -402,7 +474,6 @@ class AsyncWebCrawler:
                     html = sanitize_input_encode(async_response.html)
                     screenshot_data = async_response.screenshot
                     pdf_data = async_response.pdf_data
-                    js_execution_result = async_response.js_execution_result
 
                     t2 = time.perf_counter()
                     self.logger.url_status(
@@ -412,10 +483,8 @@ class AsyncWebCrawler:
                         tag="FETCH",
                     )
 
-                    ###############################################################
-                    # Process the HTML content, Call CrawlerStrategy.process_html #
-                    ###############################################################
-                    crawl_result : CrawlResult = await self.aprocess_html(
+                    # Process the HTML content
+                    crawl_result: CrawlResult = await self.aprocess_html(
                         url=url,
                         html=html,
                         extracted_content=extracted_content,
@@ -431,11 +500,30 @@ class AsyncWebCrawler:
                     crawl_result.redirected_url = async_response.redirected_url or url
                     crawl_result.response_headers = async_response.response_headers
                     crawl_result.downloaded_files = async_response.downloaded_files
-                    crawl_result.js_execution_result = js_execution_result
                     crawl_result.ssl_certificate = (
                         async_response.ssl_certificate
                     )  # Add SSL certificate
 
+                    # # Check and set values from async_response to crawl_result
+                    # try:
+                    #     for key in vars(async_response):
+                    #         if hasattr(crawl_result, key):
+                    #             value = getattr(async_response, key, None)
+                    #             current_value = getattr(crawl_result, key, None)
+                    #             if value is not None and not current_value:
+                    #                 try:
+                    #                     setattr(crawl_result, key, value)
+                    #                 except Exception as e:
+                    #                     self.logger.warning(
+                    #                         message=f"Failed to set attribute {key}: {str(e)}",
+                    #                         tag="WARNING"
+                    #                     )
+                    # except Exception as e:
+                    #     self.logger.warning(
+                    #         message=f"Error copying response attributes: {str(e)}",
+                    #         tag="WARNING"
+                    #     )
+
                     crawl_result.success = bool(html)
                     crawl_result.session_id = getattr(config, "session_id", None)
 
@@ -485,6 +573,8 @@ class AsyncWebCrawler:
                     f"Error: {str(e)}\n\n"
                     f"Code context:\n{error_context['code_context']}"
                 )
+                # if not hasattr(e, "msg"):
+                #     e.msg = str(e)
 
                 self.logger.error_status(
                     url=url,
@@ -523,7 +613,6 @@ class AsyncWebCrawler:
         Returns:
             CrawlResult: Processed result containing extracted and formatted content
         """
-        cleaned_html = ""
         try:
             _url = url if not kwargs.get("is_raw_html", False) else "Raw HTML"
             t1 = time.perf_counter()
@@ -538,11 +627,7 @@ class AsyncWebCrawler:
             # add keys from kwargs to params that doesn't exist in params
             params.update({k: v for k, v in kwargs.items() if k not in params.keys()})
 
-            
-            ################################
-            # Scraping Strategy Execution  #
-            ################################
-            result : ScrapingResult = scraping_strategy.scrap(url, html, **params)
+            result = scraping_strategy.scrap(url, html, **params)
 
             if result is None:
                 raise ValueError(
@@ -568,9 +653,7 @@ class AsyncWebCrawler:
             links = result.links.model_dump()
             metadata = result.metadata
 
-        ################################
-        # Generate Markdown            #
-        ################################
+        # Markdown Generation
         markdown_generator: Optional[MarkdownGenerationStrategy] = (
             config.markdown_generator or DefaultMarkdownGenerator()
         )
@@ -586,23 +669,24 @@ class AsyncWebCrawler:
                 # html2text_options=kwargs.get('html2text', {})
             )
         )
+        markdown_v2 = markdown_result
+        markdown = sanitize_input_encode(markdown_result.raw_markdown)
 
         # Log processing completion
         self.logger.info(
-            message="{url:.50}... | Time: {timing}s",
+            message="Processed {url:.50}... | Time: {timing}ms",
             tag="SCRAPE",
-            params={"url": _url, "timing": int((time.perf_counter() - t1) * 1000) / 1000},
+            params={"url": _url, "timing": int((time.perf_counter() - t1) * 1000)},
         )
 
-        ################################
-        # Structured Content Extraction           #
-        ################################
+        # Handle content extraction if needed
         if (
             not bool(extracted_content)
             and config.extraction_strategy
             and not isinstance(config.extraction_strategy, NoExtractionStrategy)
         ):
             t1 = time.perf_counter()
+
             # Choose content based on input_format
             content_format = config.extraction_strategy.input_format
             if content_format == "fit_markdown" and not markdown_result.fit_markdown:
@@ -614,16 +698,15 @@ class AsyncWebCrawler:
                 content_format = "markdown"
 
             content = {
-                "markdown": markdown_result.raw_markdown,
+                "markdown": markdown,
                 "html": html,
-                "cleaned_html": cleaned_html,
-                "fit_markdown": markdown_result.fit_markdown,
-            }.get(content_format, markdown_result.raw_markdown)
+                "fit_markdown": markdown_result.raw_markdown,
+            }.get(content_format, markdown)
 
             # Use IdentityChunking for HTML input, otherwise use provided chunking strategy
             chunking = (
                 IdentityChunking()
-                if content_format in ["html", "cleaned_html"]
+                if content_format == "html"
                 else config.chunking_strategy
             )
             sections = chunking.chunk(content)
@@ -652,7 +735,10 @@ class AsyncWebCrawler:
             url=url,
             html=html,
             cleaned_html=cleaned_html,
-            markdown=markdown_result,
+            markdown_v2=markdown_v2,
+            markdown=markdown,
+            fit_markdown=markdown_result.fit_markdown,
+            fit_html=markdown_result.fit_html,
             media=media,
             links=links,
             metadata=metadata,
@@ -666,7 +752,7 @@ class AsyncWebCrawler:
     async def arun_many(
         self,
         urls: List[str],
-        config: Optional[CrawlerRunConfig] = None, 
+        config: Optional[CrawlerRunConfig] = None,
         dispatcher: Optional[BaseDispatcher] = None,
         # Legacy parameters maintained for backwards compatibility
         word_count_threshold=MIN_WORD_THRESHOLD,
@@ -680,8 +766,8 @@ class AsyncWebCrawler:
         pdf: bool = False,
         user_agent: str = None,
         verbose=True,
-        **kwargs
-        ) -> RunManyReturn:
+        **kwargs,
+    ) -> Union[RunManyReturn, DeepCrawlManyReturn]:
         """
         Runs the crawler for multiple URLs concurrently using a configurable dispatcher strategy.
 
@@ -712,6 +798,22 @@ class AsyncWebCrawler:
         ):
             print(f"Processed {result.url}: {len(result.markdown)} chars")
         """
+
+        async def merge_async_generators(generators):
+            tasks = {asyncio.create_task(gen.__anext__()): gen for gen in generators}
+            while tasks:
+                done, _ = await asyncio.wait(tasks, return_when=asyncio.FIRST_COMPLETED)
+                
+                for task in done:
+                    gen = tasks.pop(task)  # Get the generator associated with this task
+                    
+                    try:
+                        result = task.result()
+                        yield result  # Yield the result
+                        tasks[asyncio.create_task(gen.__anext__())] = gen  # Fetch next item
+                    except StopAsyncIteration:
+                        pass  # Generator is exhausted, don't add it back to the tasks
+
         if config is None:
             config = CrawlerRunConfig(
                 word_count_threshold=word_count_threshold,
@@ -734,30 +836,57 @@ class AsyncWebCrawler:
                 ),
             )
 
-        def transform_result(task_result):
-            return (
-                    setattr(task_result.result, 'dispatch_result', 
-                        DispatchResult(
-                            task_id=task_result.task_id,
-                            memory_usage=task_result.memory_usage,
-                            peak_memory=task_result.peak_memory,
-                            start_time=task_result.start_time,
-                            end_time=task_result.end_time,
-                            error_message=task_result.error_message,
-                        )
-                    ) or task_result.result
-                )
+        transform_result = lambda task_result: (
+            setattr(
+                task_result.result,
+                "dispatch_result",
+                DispatchResult(
+                    task_id=task_result.task_id,
+                    memory_usage=task_result.memory_usage,
+                    peak_memory=task_result.peak_memory,
+                    start_time=task_result.start_time,
+                    end_time=task_result.end_time,
+                    error_message=task_result.error_message,
+                ),
+            )
+            or task_result.result
+        )
 
         stream = config.stream
-        
+
+        if config.deep_crawl_strategy:
+            if config.stream:
+                generators = []
+                for url in urls:
+                    generators.append(
+                        config.deep_crawl_strategy.arun(
+                            start_url=url, crawler=self, crawler_run_config=config
+                        )
+                    )
+                return merge_async_generators(generators)
+            else:
+                results = []
+                for url in urls:
+                    url_results = []
+                    async for result in config.deep_crawl_strategy.arun(
+                        start_url=url, crawler=self, crawler_run_config=config
+                    ):
+                        url_results.append(result)
+                    results.append(url_results)
+                return results
+
         if stream:
+
             async def result_transformer():
-                async for task_result in dispatcher.run_urls_stream(crawler=self, urls=urls, config=config):
+                async for task_result in dispatcher.run_urls_stream(
+                    crawler=self, urls=urls, config=config
+                ):
                     yield transform_result(task_result)
+
             return result_transformer()
         else:
             _results = await dispatcher.run_urls(crawler=self, urls=urls, config=config)
-            return [transform_result(res) for res in _results]    
+            return [transform_result(res) for res in _results]
 
     async def aclear_cache(self):
         """Clear the cache database."""

crawl4ai/browser_manager.py

@@ -1,873 +0,0 @@
-import asyncio
-import time
-from typing import List, Optional
-import os
-import sys
-import shutil
-import tempfile
-import subprocess
-from playwright.async_api import BrowserContext
-import hashlib
-from .js_snippet import load_js_script
-from .config import DOWNLOAD_PAGE_TIMEOUT
-from .async_configs import BrowserConfig, CrawlerRunConfig
-from playwright_stealth import StealthConfig
-from .utils import get_chromium_path
-
-stealth_config = StealthConfig(
-    webdriver=True,
-    chrome_app=True,
-    chrome_csi=True,
-    chrome_load_times=True,
-    chrome_runtime=True,
-    navigator_languages=True,
-    navigator_plugins=True,
-    navigator_permissions=True,
-    webgl_vendor=True,
-    outerdimensions=True,
-    navigator_hardware_concurrency=True,
-    media_codecs=True,
-)
-
-BROWSER_DISABLE_OPTIONS = [
-    "--disable-background-networking",
-    "--disable-background-timer-throttling",
-    "--disable-backgrounding-occluded-windows",
-    "--disable-breakpad",
-    "--disable-client-side-phishing-detection",
-    "--disable-component-extensions-with-background-pages",
-    "--disable-default-apps",
-    "--disable-extensions",
-    "--disable-features=TranslateUI",
-    "--disable-hang-monitor",
-    "--disable-ipc-flooding-protection",
-    "--disable-popup-blocking",
-    "--disable-prompt-on-repost",
-    "--disable-sync",
-    "--force-color-profile=srgb",
-    "--metrics-recording-only",
-    "--no-first-run",
-    "--password-store=basic",
-    "--use-mock-keychain",
-]
-
-
-class ManagedBrowser:
-    """
-    Manages the browser process and context. This class allows to connect to the browser using CDP protocol.
-
-    Attributes:
-        browser_type (str): The type of browser to launch. Supported values: "chromium", "firefox", "webkit".
-                            Default: "chromium".
-        user_data_dir (str or None): Path to a user data directory for persistent sessions. If None, a
-                                     temporary directory may be used. Default: None.
-        headless (bool): Whether to run the browser in headless mode (no visible GUI).
-                         Default: True.
-        browser_process (subprocess.Popen): The process object for the browser.
-        temp_dir (str): Temporary directory for user data if not provided.
-        debugging_port (int): Port for debugging the browser.
-        host (str): Host for debugging the browser.
-
-        Methods:
-            start(): Starts the browser process and returns the CDP endpoint URL.
-            _get_browser_path(): Returns the browser executable path based on OS and browser type.
-            _get_browser_args(): Returns browser-specific command line arguments.
-            _get_user_data_dir(): Returns the user data directory path.
-            _cleanup(): Terminates the browser process and removes the temporary directory.
-            create_profile(): Static method to create a user profile by launching a browser for user interaction.
-    """
-
-    browser_type: str
-    user_data_dir: str
-    headless: bool
-    browser_process: subprocess.Popen
-    temp_dir: str
-    debugging_port: int
-    host: str
-
-    def __init__(
-        self,
-        browser_type: str = "chromium",
-        user_data_dir: Optional[str] = None,
-        headless: bool = False,
-        logger=None,
-        host: str = "localhost",
-        debugging_port: int = 9222,
-        cdp_url: Optional[str] = None, 
-    ):
-        """
-        Initialize the ManagedBrowser instance.
-
-        Args:
-            browser_type (str): The type of browser to launch. Supported values: "chromium", "firefox", "webkit".
-                                Default: "chromium".
-            user_data_dir (str or None): Path to a user data directory for persistent sessions. If None, a
-                                         temporary directory may be used. Default: None.
-            headless (bool): Whether to run the browser in headless mode (no visible GUI).
-                             Default: True.
-            logger (logging.Logger): Logger instance for logging messages. Default: None.
-            host (str): Host for debugging the browser. Default: "localhost".
-            debugging_port (int): Port for debugging the browser. Default: 9222.
-            cdp_url (str or None): CDP URL to connect to the browser. Default: None.
-        """
-        self.browser_type = browser_type
-        self.user_data_dir = user_data_dir
-        self.headless = headless
-        self.browser_process = None
-        self.temp_dir = None
-        self.debugging_port = debugging_port
-        self.host = host
-        self.logger = logger
-        self.shutting_down = False
-        self.cdp_url = cdp_url
-
-    async def start(self) -> str:
-        """
-        Starts the browser process or returns CDP endpoint URL.
-        If cdp_url is provided, returns it directly.
-        If user_data_dir is not provided for local browser, creates a temporary directory.
-        
-        Returns:
-            str: CDP endpoint URL
-        """
-        # If CDP URL provided, just return it
-        if self.cdp_url:
-            return self.cdp_url
-
-        # Create temp dir if needed
-        if not self.user_data_dir:
-            self.temp_dir = tempfile.mkdtemp(prefix="browser-profile-")
-            self.user_data_dir = self.temp_dir
-
-        # Get browser path and args based on OS and browser type
-        # browser_path = self._get_browser_path()
-        args = await self._get_browser_args()
-
-        # Start browser process
-        try:
-            self.browser_process = subprocess.Popen(
-                args, stdout=subprocess.PIPE, stderr=subprocess.PIPE
-            )
-            # Monitor browser process output for errors
-            asyncio.create_task(self._monitor_browser_process())
-            await asyncio.sleep(2)  # Give browser time to start
-            return f"http://{self.host}:{self.debugging_port}"
-        except Exception as e:
-            await self.cleanup()
-            raise Exception(f"Failed to start browser: {e}")
-
-    async def _monitor_browser_process(self):
-        """
-        Monitor the browser process for unexpected termination.
-
-        How it works:
-        1. Read stdout and stderr from the browser process.
-        2. If the process has terminated, log the error message and terminate the browser.
-        3. If the shutting_down flag is set, log the normal termination message.
-        4. If any other error occurs, log the error message.
-
-        Note: This method should be called in a separate task to avoid blocking the main event loop.
-        """
-        if self.browser_process:
-            try:
-                stdout, stderr = await asyncio.gather(
-                    asyncio.to_thread(self.browser_process.stdout.read),
-                    asyncio.to_thread(self.browser_process.stderr.read),
-                )
-
-                # Check shutting_down flag BEFORE logging anything
-                if self.browser_process.poll() is not None:
-                    if not self.shutting_down:
-                        self.logger.error(
-                            message="Browser process terminated unexpectedly | Code: {code} | STDOUT: {stdout} | STDERR: {stderr}",
-                            tag="ERROR",
-                            params={
-                                "code": self.browser_process.returncode,
-                                "stdout": stdout.decode(),
-                                "stderr": stderr.decode(),
-                            },
-                        )
-                        await self.cleanup()
-                    else:
-                        self.logger.info(
-                            message="Browser process terminated normally | Code: {code}",
-                            tag="INFO",
-                            params={"code": self.browser_process.returncode},
-                        )
-            except Exception as e:
-                if not self.shutting_down:
-                    self.logger.error(
-                        message="Error monitoring browser process: {error}",
-                        tag="ERROR",
-                        params={"error": str(e)},
-                    )
-
-    def _get_browser_path_WIP(self) -> str:
-        """Returns the browser executable path based on OS and browser type"""
-        if sys.platform == "darwin":  # macOS
-            paths = {
-                "chromium": "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome",
-                "firefox": "/Applications/Firefox.app/Contents/MacOS/firefox",
-                "webkit": "/Applications/Safari.app/Contents/MacOS/Safari",
-            }
-        elif sys.platform == "win32":  # Windows
-            paths = {
-                "chromium": "C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe",
-                "firefox": "C:\\Program Files\\Mozilla Firefox\\firefox.exe",
-                "webkit": None,  # WebKit not supported on Windows
-            }
-        else:  # Linux
-            paths = {
-                "chromium": "google-chrome",
-                "firefox": "firefox",
-                "webkit": None,  # WebKit not supported on Linux
-            }
-
-        return paths.get(self.browser_type)
-
-    async def _get_browser_path(self) -> str:
-        browser_path = await get_chromium_path(self.browser_type)
-        return browser_path
-
-    async def _get_browser_args(self) -> List[str]:
-        """Returns browser-specific command line arguments"""
-        base_args = [await self._get_browser_path()]
-
-        if self.browser_type == "chromium":
-            args = [
-                f"--remote-debugging-port={self.debugging_port}",
-                f"--user-data-dir={self.user_data_dir}",
-            ]
-            if self.headless:
-                args.append("--headless=new")
-        elif self.browser_type == "firefox":
-            args = [
-                "--remote-debugging-port",
-                str(self.debugging_port),
-                "--profile",
-                self.user_data_dir,
-            ]
-            if self.headless:
-                args.append("--headless")
-        else:
-            raise NotImplementedError(f"Browser type {self.browser_type} not supported")
-
-        return base_args + args
-
-    async def cleanup(self):
-        """Cleanup browser process and temporary directory"""
-        # Set shutting_down flag BEFORE any termination actions
-        self.shutting_down = True
-
-        if self.browser_process:
-            try:
-                self.browser_process.terminate()
-                # Wait for process to end gracefully
-                for _ in range(10):  # 10 attempts, 100ms each
-                    if self.browser_process.poll() is not None:
-                        break
-                    await asyncio.sleep(0.1)
-
-                # Force kill if still running
-                if self.browser_process.poll() is None:
-                    self.browser_process.kill()
-                    await asyncio.sleep(0.1)  # Brief wait for kill to take effect
-
-            except Exception as e:
-                self.logger.error(
-                    message="Error terminating browser: {error}",
-                    tag="ERROR",
-                    params={"error": str(e)},
-                )
-
-        if self.temp_dir and os.path.exists(self.temp_dir):
-            try:
-                shutil.rmtree(self.temp_dir)
-            except Exception as e:
-                self.logger.error(
-                    message="Error removing temporary directory: {error}",
-                    tag="ERROR",
-                    params={"error": str(e)},
-                )
-                
-    # These methods have been moved to BrowserProfiler class
-    @staticmethod
-    async def create_profile(browser_config=None, profile_name=None, logger=None):
-        """
-        This method has been moved to the BrowserProfiler class.
-        
-        Creates a browser profile by launching a browser for interactive user setup
-        and waits until the user closes it. The profile is stored in a directory that
-        can be used later with BrowserConfig.user_data_dir.
-        
-        Please use BrowserProfiler.create_profile() instead.
-        
-        Example:
-            ```python
-            from crawl4ai.browser_profiler import BrowserProfiler
-            
-            profiler = BrowserProfiler()
-            profile_path = await profiler.create_profile(profile_name="my-login-profile")
-            ```
-        """
-        from .browser_profiler import BrowserProfiler
-        
-        # Create a BrowserProfiler instance and delegate to it
-        profiler = BrowserProfiler(logger=logger)
-        return await profiler.create_profile(profile_name=profile_name, browser_config=browser_config)
-    
-    @staticmethod
-    def list_profiles():
-        """
-        This method has been moved to the BrowserProfiler class.
-        
-        Lists all available browser profiles in the Crawl4AI profiles directory.
-        
-        Please use BrowserProfiler.list_profiles() instead.
-        
-        Example:
-            ```python
-            from crawl4ai.browser_profiler import BrowserProfiler
-            
-            profiler = BrowserProfiler()
-            profiles = profiler.list_profiles()
-            ```
-        """
-        from .browser_profiler import BrowserProfiler
-        
-        # Create a BrowserProfiler instance and delegate to it
-        profiler = BrowserProfiler()
-        return profiler.list_profiles()
-        
-    @staticmethod
-    def delete_profile(profile_name_or_path):
-        """
-        This method has been moved to the BrowserProfiler class.
-        
-        Delete a browser profile by name or path.
-        
-        Please use BrowserProfiler.delete_profile() instead.
-        
-        Example:
-            ```python
-            from crawl4ai.browser_profiler import BrowserProfiler
-            
-            profiler = BrowserProfiler()
-            success = profiler.delete_profile("my-profile")
-            ```
-        """
-        from .browser_profiler import BrowserProfiler
-        
-        # Create a BrowserProfiler instance and delegate to it
-        profiler = BrowserProfiler()
-        return profiler.delete_profile(profile_name_or_path)
-
-
-
-
-class BrowserManager:
-    """
-    Manages the browser instance and context.
-
-    Attributes:
-        config (BrowserConfig): Configuration object containing all browser settings
-        logger: Logger instance for recording events and errors
-        browser (Browser): The browser instance
-        default_context (BrowserContext): The default browser context
-        managed_browser (ManagedBrowser): The managed browser instance
-        playwright (Playwright): The Playwright instance
-        sessions (dict): Dictionary to store session information
-        session_ttl (int): Session timeout in seconds
-    """
-    
-
-    def __init__(self, browser_config: BrowserConfig, logger=None):
-        """
-        Initialize the BrowserManager with a browser configuration.
-
-        Args:
-            browser_config (BrowserConfig): Configuration object containing all browser settings
-            logger: Logger instance for recording events and errors
-        """
-        self.config: BrowserConfig = browser_config
-        self.logger = logger
-
-        # Browser state
-        self.browser = None
-        self.default_context = None
-        self.managed_browser = None
-        self.playwright = None
-
-        # Session management
-        self.sessions = {}
-        self.session_ttl = 1800  # 30 minutes
-
-        # Keep track of contexts by a "config signature," so each unique config reuses a single context
-        self.contexts_by_config = {}
-        self._contexts_lock = asyncio.Lock() 
-
-        # Initialize ManagedBrowser if needed
-        if self.config.use_managed_browser:
-            self.managed_browser = ManagedBrowser(
-                browser_type=self.config.browser_type,
-                user_data_dir=self.config.user_data_dir,
-                headless=self.config.headless,
-                logger=self.logger,
-                debugging_port=self.config.debugging_port,
-                cdp_url=self.config.cdp_url,
-            )
-
-    async def start(self):
-        """
-        Start the browser instance and set up the default context.
-
-        How it works:
-        1. Check if Playwright is already initialized.
-        2. If not, initialize Playwright.
-        3. If managed browser is used, start it and connect to the CDP endpoint.
-        4. If managed browser is not used, launch the browser and set up the default context.
-
-        Note: This method should be called in a separate task to avoid blocking the main event loop.
-        """
-        if self.playwright is None:
-            from playwright.async_api import async_playwright
-
-            self.playwright = await async_playwright().start()
-
-        if self.config.use_managed_browser:
-            cdp_url = await self.managed_browser.start()
-            self.browser = await self.playwright.chromium.connect_over_cdp(cdp_url)
-            contexts = self.browser.contexts
-            if contexts:
-                self.default_context = contexts[0]
-            else:
-                self.default_context = await self.create_browser_context()
-                # self.default_context = await self.browser.new_context(
-                #     viewport={
-                #         "width": self.config.viewport_width,
-                #         "height": self.config.viewport_height,
-                #     },
-                #     storage_state=self.config.storage_state,
-                #     user_agent=self.config.headers.get(
-                #         "User-Agent", self.config.user_agent
-                #     ),
-                #     accept_downloads=self.config.accept_downloads,
-                #     ignore_https_errors=self.config.ignore_https_errors,
-                #     java_script_enabled=self.config.java_script_enabled,
-                # )
-            await self.setup_context(self.default_context)
-        else:
-            browser_args = self._build_browser_args()
-
-            # Launch appropriate browser type
-            if self.config.browser_type == "firefox":
-                self.browser = await self.playwright.firefox.launch(**browser_args)
-            elif self.config.browser_type == "webkit":
-                self.browser = await self.playwright.webkit.launch(**browser_args)
-            else:
-                self.browser = await self.playwright.chromium.launch(**browser_args)
-
-            self.default_context = self.browser
-
-    def _build_browser_args(self) -> dict:
-        """Build browser launch arguments from config."""
-        args = [
-            "--disable-gpu",
-            "--disable-gpu-compositing",
-            "--disable-software-rasterizer",
-            "--no-sandbox",
-            "--disable-dev-shm-usage",
-            "--no-first-run",
-            "--no-default-browser-check",
-            "--disable-infobars",
-            "--window-position=0,0",
-            "--ignore-certificate-errors",
-            "--ignore-certificate-errors-spki-list",
-            "--disable-blink-features=AutomationControlled",
-            "--window-position=400,0",
-            "--disable-renderer-backgrounding",
-            "--disable-ipc-flooding-protection",
-            "--force-color-profile=srgb",
-            "--mute-audio",
-            "--disable-background-timer-throttling",
-            # "--single-process",
-            f"--window-size={self.config.viewport_width},{self.config.viewport_height}",
-        ]
-
-        if self.config.light_mode:
-            args.extend(BROWSER_DISABLE_OPTIONS)
-
-        if self.config.text_mode:
-            args.extend(
-                [
-                    "--blink-settings=imagesEnabled=false",
-                    "--disable-remote-fonts",
-                    "--disable-images",
-                    "--disable-javascript",
-                    "--disable-software-rasterizer",
-                    "--disable-dev-shm-usage",
-                ]
-            )
-
-        if self.config.extra_args:
-            args.extend(self.config.extra_args)
-
-        browser_args = {"headless": self.config.headless, "args": args}
-
-        if self.config.chrome_channel:
-            browser_args["channel"] = self.config.chrome_channel
-
-        if self.config.accept_downloads:
-            browser_args["downloads_path"] = self.config.downloads_path or os.path.join(
-                os.getcwd(), "downloads"
-            )
-            os.makedirs(browser_args["downloads_path"], exist_ok=True)
-
-        if self.config.proxy or self.config.proxy_config:
-            from playwright.async_api import ProxySettings
-
-            proxy_settings = (
-                ProxySettings(server=self.config.proxy)
-                if self.config.proxy
-                else ProxySettings(
-                    server=self.config.proxy_config.get("server"),
-                    username=self.config.proxy_config.get("username"),
-                    password=self.config.proxy_config.get("password"),
-                )
-            )
-            browser_args["proxy"] = proxy_settings
-
-        return browser_args
-
-    async def setup_context(
-        self,
-        context: BrowserContext,
-        crawlerRunConfig: CrawlerRunConfig = None,
-        is_default=False,
-    ):
-        """
-        Set up a browser context with the configured options.
-
-        How it works:
-        1. Set extra HTTP headers if provided.
-        2. Add cookies if provided.
-        3. Load storage state if provided.
-        4. Accept downloads if enabled.
-        5. Set default timeouts for navigation and download.
-        6. Set user agent if provided.
-        7. Set browser hints if provided.
-        8. Set proxy if provided.
-        9. Set downloads path if provided.
-        10. Set storage state if provided.
-        11. Set cache if provided.
-        12. Set extra HTTP headers if provided.
-        13. Add cookies if provided.
-        14. Set default timeouts for navigation and download if enabled.
-        15. Set user agent if provided.
-        16. Set browser hints if provided.
-
-        Args:
-            context (BrowserContext): The browser context to set up
-            crawlerRunConfig (CrawlerRunConfig): Configuration object containing all browser settings
-            is_default (bool): Flag indicating if this is the default context
-        Returns:
-            None
-        """
-        if self.config.headers:
-            await context.set_extra_http_headers(self.config.headers)
-
-        if self.config.cookies:
-            await context.add_cookies(self.config.cookies)
-
-        if self.config.storage_state:
-            await context.storage_state(path=None)
-
-        if self.config.accept_downloads:
-            context.set_default_timeout(DOWNLOAD_PAGE_TIMEOUT)
-            context.set_default_navigation_timeout(DOWNLOAD_PAGE_TIMEOUT)
-            if self.config.downloads_path:
-                context._impl_obj._options["accept_downloads"] = True
-                context._impl_obj._options[
-                    "downloads_path"
-                ] = self.config.downloads_path
-
-        # Handle user agent and browser hints
-        if self.config.user_agent:
-            combined_headers = {
-                "User-Agent": self.config.user_agent,
-                "sec-ch-ua": self.config.browser_hint,
-            }
-            combined_headers.update(self.config.headers)
-            await context.set_extra_http_headers(combined_headers)
-
-        # Add default cookie
-        await context.add_cookies(
-            [
-                {
-                    "name": "cookiesEnabled",
-                    "value": "true",
-                    "url": crawlerRunConfig.url
-                    if crawlerRunConfig
-                    else "https://crawl4ai.com/",
-                }
-            ]
-        )
-
-        # Handle navigator overrides
-        if crawlerRunConfig:
-            if (
-                crawlerRunConfig.override_navigator
-                or crawlerRunConfig.simulate_user
-                or crawlerRunConfig.magic
-            ):
-                await context.add_init_script(load_js_script("navigator_overrider"))        
-
-    async def create_browser_context(self, crawlerRunConfig: CrawlerRunConfig = None):
-        """
-        Creates and returns a new browser context with configured settings.
-        Applies text-only mode settings if text_mode is enabled in config.
-
-        Returns:
-            Context: Browser context object with the specified configurations
-        """
-        # Base settings
-        user_agent = self.config.headers.get("User-Agent", self.config.user_agent) 
-        viewport_settings = {
-            "width": self.config.viewport_width,
-            "height": self.config.viewport_height,
-        }
-        proxy_settings = {"server": self.config.proxy} if self.config.proxy else None
-
-        blocked_extensions = [
-            # Images
-            "jpg",
-            "jpeg",
-            "png",
-            "gif",
-            "webp",
-            "svg",
-            "ico",
-            "bmp",
-            "tiff",
-            "psd",
-            # Fonts
-            "woff",
-            "woff2",
-            "ttf",
-            "otf",
-            "eot",
-            # Styles
-            # 'css', 'less', 'scss', 'sass',
-            # Media
-            "mp4",
-            "webm",
-            "ogg",
-            "avi",
-            "mov",
-            "wmv",
-            "flv",
-            "m4v",
-            "mp3",
-            "wav",
-            "aac",
-            "m4a",
-            "opus",
-            "flac",
-            # Documents
-            "pdf",
-            "doc",
-            "docx",
-            "xls",
-            "xlsx",
-            "ppt",
-            "pptx",
-            # Archives
-            "zip",
-            "rar",
-            "7z",
-            "tar",
-            "gz",
-            # Scripts and data
-            "xml",
-            "swf",
-            "wasm",
-        ]
-
-        # Common context settings
-        context_settings = {
-            "user_agent": user_agent,
-            "viewport": viewport_settings,
-            "proxy": proxy_settings,
-            "accept_downloads": self.config.accept_downloads,
-            "storage_state": self.config.storage_state,
-            "ignore_https_errors": self.config.ignore_https_errors,
-            "device_scale_factor": 1.0,
-            "java_script_enabled": self.config.java_script_enabled,
-        }
-        
-        if crawlerRunConfig:
-            # Check if there is value for crawlerRunConfig.proxy_config set add that to context
-            if crawlerRunConfig.proxy_config:
-                proxy_settings = {
-                    "server": crawlerRunConfig.proxy_config.server,
-                }
-                if crawlerRunConfig.proxy_config.username:
-                    proxy_settings.update({
-                        "username": crawlerRunConfig.proxy_config.username,
-                        "password": crawlerRunConfig.proxy_config.password,
-                    })
-                context_settings["proxy"] = proxy_settings
-
-        if self.config.text_mode:
-            text_mode_settings = {
-                "has_touch": False,
-                "is_mobile": False,
-            }
-            # Update context settings with text mode settings
-            context_settings.update(text_mode_settings)
-
-        # Create and return the context with all settings
-        context = await self.browser.new_context(**context_settings)
-
-        # Apply text mode settings if enabled
-        if self.config.text_mode:
-            # Create and apply route patterns for each extension
-            for ext in blocked_extensions:
-                await context.route(f"**/*.{ext}", lambda route: route.abort())
-        return context
-
-    def _make_config_signature(self, crawlerRunConfig: CrawlerRunConfig) -> str:
-        """
-        Converts the crawlerRunConfig into a dict, excludes ephemeral fields,
-        then returns a hash of the sorted JSON. This yields a stable signature
-        that identifies configurations requiring a unique browser context.
-        """
-        import json
-
-        config_dict = crawlerRunConfig.__dict__.copy()
-        # Exclude items that do not affect browser-level setup.
-        # Expand or adjust as needed, e.g. chunking_strategy is purely for data extraction, not for browser config.
-        ephemeral_keys = [
-            "session_id",
-            "js_code",
-            "scraping_strategy",
-            "extraction_strategy",
-            "chunking_strategy",
-            "cache_mode",
-            "content_filter",
-            "semaphore_count",
-            "url"
-        ]
-        for key in ephemeral_keys:
-            if key in config_dict:
-                del config_dict[key]
-        # Convert to canonical JSON string
-        signature_json = json.dumps(config_dict, sort_keys=True, default=str)
-
-        # Hash the JSON so we get a compact, unique string
-        signature_hash = hashlib.sha256(signature_json.encode("utf-8")).hexdigest()
-        return signature_hash
-
-    async def get_page(self, crawlerRunConfig: CrawlerRunConfig):
-        """
-        Get a page for the given session ID, creating a new one if needed.
-
-        Args:
-            crawlerRunConfig (CrawlerRunConfig): Configuration object containing all browser settings
-
-        Returns:
-            (page, context): The Page and its BrowserContext
-        """
-        self._cleanup_expired_sessions()
-
-        # If a session_id is provided and we already have it, reuse that page + context
-        if crawlerRunConfig.session_id and crawlerRunConfig.session_id in self.sessions:
-            context, page, _ = self.sessions[crawlerRunConfig.session_id]
-            # Update last-used timestamp
-            self.sessions[crawlerRunConfig.session_id] = (context, page, time.time())
-            return page, context
-
-        # If using a managed browser, just grab the shared default_context
-        if self.config.use_managed_browser:
-            context = self.default_context
-            page = await context.new_page()
-        else:
-            # Otherwise, check if we have an existing context for this config
-            config_signature = self._make_config_signature(crawlerRunConfig)
-
-            async with self._contexts_lock:
-                if config_signature in self.contexts_by_config:
-                    context = self.contexts_by_config[config_signature]
-                else:
-                    # Create and setup a new context
-                    context = await self.create_browser_context(crawlerRunConfig)
-                    await self.setup_context(context, crawlerRunConfig)
-                    self.contexts_by_config[config_signature] = context
-
-            # Create a new page from the chosen context
-            page = await context.new_page()
-
-        # If a session_id is specified, store this session so we can reuse later
-        if crawlerRunConfig.session_id:
-            self.sessions[crawlerRunConfig.session_id] = (context, page, time.time())
-
-        return page, context
-
-    async def kill_session(self, session_id: str):
-        """
-        Kill a browser session and clean up resources.
-
-        Args:
-            session_id (str): The session ID to kill.
-        """
-        if session_id in self.sessions:
-            context, page, _ = self.sessions[session_id]
-            await page.close()
-            if not self.config.use_managed_browser:
-                await context.close()
-            del self.sessions[session_id]
-
-    def _cleanup_expired_sessions(self):
-        """Clean up expired sessions based on TTL."""
-        current_time = time.time()
-        expired_sessions = [
-            sid
-            for sid, (_, _, last_used) in self.sessions.items()
-            if current_time - last_used > self.session_ttl
-        ]
-        for sid in expired_sessions:
-            asyncio.create_task(self.kill_session(sid))
-
-    async def close(self):
-        """Close all browser resources and clean up."""
-        if self.config.sleep_on_close:
-            await asyncio.sleep(0.5)
-
-        session_ids = list(self.sessions.keys())
-        for session_id in session_ids:
-            await self.kill_session(session_id)
-
-        # Now close all contexts we created. This reclaims memory from ephemeral contexts.
-        for ctx in self.contexts_by_config.values():
-            try:
-                await ctx.close()
-            except Exception as e:
-                self.logger.error(
-                    message="Error closing context: {error}",
-                    tag="ERROR",
-                    params={"error": str(e)}
-                )
-        self.contexts_by_config.clear()
-
-        if self.browser:
-            await self.browser.close()
-            self.browser = None
-
-        if self.managed_browser:
-            await asyncio.sleep(0.5)
-            await self.managed_browser.cleanup()
-            self.managed_browser = None
-
-        if self.playwright:
-            await self.playwright.stop()
-            self.playwright = None

crawl4ai/browser_profiler.py

@@ -1,544 +0,0 @@
-"""
-Browser Profiler Module
-
-This module provides a dedicated class for managing browser profiles
-that can be used for identity-based crawling with Crawl4AI.
-"""
-
-import os
-import asyncio
-import signal
-import sys
-import datetime
-import uuid
-import shutil
-from typing import List, Dict, Optional, Any
-from colorama import Fore, Style, init
-
-from .async_configs import BrowserConfig
-from .browser_manager import ManagedBrowser
-from .async_logger import AsyncLogger, AsyncLoggerBase
-from .utils import get_home_folder
-
-
-class BrowserProfiler:
-    """
-    A dedicated class for managing browser profiles for Crawl4AI.
-    
-    The BrowserProfiler allows you to:
-    - Create browser profiles interactively
-    - List available profiles
-    - Delete profiles when no longer needed
-    - Get profile paths for use in BrowserConfig
-    
-    Profiles are stored by default in ~/.crawl4ai/profiles/
-    """
-    
-    def __init__(self, logger: Optional[AsyncLoggerBase] = None):
-        """
-        Initialize the BrowserProfiler.
-        
-        Args:
-            logger (AsyncLoggerBase, optional): Logger for outputting messages.
-                If None, a default AsyncLogger will be created.
-        """
-        # Initialize colorama for colorful terminal output
-        init()
-        
-        # Create a logger if not provided
-        if logger is None:
-            self.logger = AsyncLogger(verbose=True)
-        elif not isinstance(logger, AsyncLoggerBase):
-            self.logger = AsyncLogger(verbose=True)
-        else:
-            self.logger = logger
-            
-        # Ensure profiles directory exists
-        self.profiles_dir = os.path.join(get_home_folder(), "profiles")
-        os.makedirs(self.profiles_dir, exist_ok=True)
-    
-    async def create_profile(self, 
-                            profile_name: Optional[str] = None, 
-                            browser_config: Optional[BrowserConfig] = None) -> Optional[str]:
-        """
-        Creates a browser profile by launching a browser for interactive user setup
-        and waits until the user closes it. The profile is stored in a directory that
-        can be used later with BrowserConfig.user_data_dir.
-        
-        Args:
-            profile_name (str, optional): Name for the profile directory.
-                If None, a name is generated based on timestamp.
-            browser_config (BrowserConfig, optional): Configuration for the browser.
-                If None, a default configuration is used with headless=False.
-                
-        Returns:
-            str: Path to the created profile directory, or None if creation failed
-            
-        Example:
-            ```python
-            profiler = BrowserProfiler()
-            
-            # Create a profile interactively
-            profile_path = await profiler.create_profile(
-                profile_name="my-login-profile"
-            )
-            
-            # Use the profile in a crawler
-            browser_config = BrowserConfig(
-                headless=True,
-                use_managed_browser=True,
-                user_data_dir=profile_path
-            )
-            
-            async with AsyncWebCrawler(config=browser_config) as crawler:
-                # The crawler will now use your profile with all your cookies and login state
-                result = await crawler.arun("https://example.com/dashboard")
-            ```
-        """
-        # Create default browser config if none provided
-        if browser_config is None:
-            from .async_configs import BrowserConfig
-            browser_config = BrowserConfig(
-                browser_type="chromium",
-                headless=False,  # Must be visible for user interaction
-                verbose=True
-            )
-        else:
-            # Ensure headless is False for user interaction
-            browser_config.headless = False
-            
-        # Generate profile name if not provided
-        if not profile_name:
-            timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S")
-            profile_name = f"profile_{timestamp}_{uuid.uuid4().hex[:6]}"
-            
-        # Sanitize profile name (replace spaces and special chars)
-        profile_name = "".join(c if c.isalnum() or c in "-_" else "_" for c in profile_name)
-        
-        # Set user data directory
-        profile_path = os.path.join(self.profiles_dir, profile_name)
-        os.makedirs(profile_path, exist_ok=True)
-        
-        # Print instructions for the user with colorama formatting
-        border = f"{Fore.CYAN}{'='*80}{Style.RESET_ALL}"
-        self.logger.info(f"\n{border}", tag="PROFILE")
-        self.logger.info(f"Creating browser profile: {Fore.GREEN}{profile_name}{Style.RESET_ALL}", tag="PROFILE")
-        self.logger.info(f"Profile directory: {Fore.YELLOW}{profile_path}{Style.RESET_ALL}", tag="PROFILE")
-        
-        self.logger.info("\nInstructions:", tag="PROFILE")
-        self.logger.info("1. A browser window will open for you to set up your profile.", tag="PROFILE")
-        self.logger.info(f"2. {Fore.CYAN}Log in to websites{Style.RESET_ALL}, configure settings, etc. as needed.", tag="PROFILE")
-        self.logger.info(f"3. When you're done, {Fore.YELLOW}press 'q' in this terminal{Style.RESET_ALL} to close the browser.", tag="PROFILE")
-        self.logger.info("4. The profile will be saved and ready to use with Crawl4AI.", tag="PROFILE")
-        self.logger.info(f"{border}\n", tag="PROFILE")
-        
-        # Create managed browser instance
-        managed_browser = ManagedBrowser(
-            browser_type=browser_config.browser_type,
-            user_data_dir=profile_path,
-            headless=False,  # Must be visible
-            logger=self.logger,
-            debugging_port=browser_config.debugging_port
-        )
-        
-        # Set up signal handlers to ensure cleanup on interrupt
-        original_sigint = signal.getsignal(signal.SIGINT)
-        original_sigterm = signal.getsignal(signal.SIGTERM)
-        
-        # Define cleanup handler for signals
-        async def cleanup_handler(sig, frame):
-            self.logger.warning("\nCleaning up browser process...", tag="PROFILE")
-            await managed_browser.cleanup()
-            # Restore original signal handlers
-            signal.signal(signal.SIGINT, original_sigint)
-            signal.signal(signal.SIGTERM, original_sigterm)
-            if sig == signal.SIGINT:
-                self.logger.error("Profile creation interrupted. Profile may be incomplete.", tag="PROFILE")
-                sys.exit(1)
-                
-        # Set signal handlers
-        def sigint_handler(sig, frame):
-            asyncio.create_task(cleanup_handler(sig, frame))
-        
-        signal.signal(signal.SIGINT, sigint_handler)
-        signal.signal(signal.SIGTERM, sigint_handler)
-        
-        # Event to signal when user is done with the browser
-        user_done_event = asyncio.Event()
-        
-        # Run keyboard input loop in a separate task
-        async def listen_for_quit_command():
-            import termios
-            import tty
-            import select
-            
-            # First output the prompt
-            self.logger.info(f"{Fore.CYAN}Press '{Fore.WHITE}q{Fore.CYAN}' when you've finished using the browser...{Style.RESET_ALL}", tag="PROFILE")
-            
-            # Save original terminal settings
-            fd = sys.stdin.fileno()
-            old_settings = termios.tcgetattr(fd)
-            
-            try:
-                # Switch to non-canonical mode (no line buffering)
-                tty.setcbreak(fd)
-                
-                while True:
-                    # Check if input is available (non-blocking)
-                    readable, _, _ = select.select([sys.stdin], [], [], 0.5)
-                    if readable:
-                        key = sys.stdin.read(1)
-                        if key.lower() == 'q':
-                            self.logger.info(f"{Fore.GREEN}Closing browser and saving profile...{Style.RESET_ALL}", tag="PROFILE")
-                            user_done_event.set()
-                            return
-                    
-                    # Check if the browser process has already exited
-                    if managed_browser.browser_process and managed_browser.browser_process.poll() is not None:
-                        self.logger.info("Browser already closed. Ending input listener.", tag="PROFILE")
-                        user_done_event.set()
-                        return
-                        
-                    await asyncio.sleep(0.1)
-            
-            finally:
-                # Restore terminal settings 
-                termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
-        
-        try:
-            # Start the browser
-            await managed_browser.start()
-            
-            # Check if browser started successfully
-            browser_process = managed_browser.browser_process
-            if not browser_process:
-                self.logger.error("Failed to start browser process.", tag="PROFILE")
-                return None
-            
-            self.logger.info(f"Browser launched. {Fore.CYAN}Waiting for you to finish...{Style.RESET_ALL}", tag="PROFILE") 
-            
-            # Start listening for keyboard input
-            listener_task = asyncio.create_task(listen_for_quit_command())
-            
-            # Wait for either the user to press 'q' or for the browser process to exit naturally
-            while not user_done_event.is_set() and browser_process.poll() is None:
-                await asyncio.sleep(0.5)
-            
-            # Cancel the listener task if it's still running
-            if not listener_task.done():
-                listener_task.cancel()
-                try:
-                    await listener_task
-                except asyncio.CancelledError:
-                    pass
-            
-            # If the browser is still running and the user pressed 'q', terminate it
-            if browser_process.poll() is None and user_done_event.is_set():
-                self.logger.info("Terminating browser process...", tag="PROFILE")
-                await managed_browser.cleanup()
-            
-            self.logger.success(f"Browser closed. Profile saved at: {Fore.GREEN}{profile_path}{Style.RESET_ALL}", tag="PROFILE")
-                
-        except Exception as e:
-            self.logger.error(f"Error creating profile: {str(e)}", tag="PROFILE")
-            await managed_browser.cleanup()
-            return None
-        finally:
-            # Restore original signal handlers
-            signal.signal(signal.SIGINT, original_sigint)
-            signal.signal(signal.SIGTERM, original_sigterm)
-            
-            # Make sure browser is fully cleaned up
-            await managed_browser.cleanup()
-        
-        # Return the profile path
-        return profile_path
-    
-    def list_profiles(self) -> List[Dict[str, Any]]:
-        """
-        Lists all available browser profiles in the Crawl4AI profiles directory.
-        
-        Returns:
-            list: A list of dictionaries containing profile information:
-                  [{"name": "profile_name", "path": "/path/to/profile", "created": datetime, "type": "chromium|firefox"}]
-                  
-        Example:
-            ```python
-            profiler = BrowserProfiler()
-            
-            # List all available profiles
-            profiles = profiler.list_profiles()
-            
-            for profile in profiles:
-                print(f"Profile: {profile['name']}")
-                print(f"  Path: {profile['path']}")
-                print(f"  Created: {profile['created']}")
-                print(f"  Browser type: {profile['type']}")
-            ```
-        """
-        if not os.path.exists(self.profiles_dir):
-            return []
-            
-        profiles = []
-        
-        for name in os.listdir(self.profiles_dir):
-            profile_path = os.path.join(self.profiles_dir, name)
-            
-            # Skip if not a directory
-            if not os.path.isdir(profile_path):
-                continue
-                
-            # Check if this looks like a valid browser profile
-            # For Chromium: Look for Preferences file
-            # For Firefox: Look for prefs.js file
-            is_valid = False
-            
-            if os.path.exists(os.path.join(profile_path, "Preferences")) or \
-               os.path.exists(os.path.join(profile_path, "Default", "Preferences")):
-                is_valid = "chromium"
-            elif os.path.exists(os.path.join(profile_path, "prefs.js")):
-                is_valid = "firefox"
-                
-            if is_valid:
-                # Get creation time
-                created = datetime.datetime.fromtimestamp(
-                    os.path.getctime(profile_path)
-                )
-                
-                profiles.append({
-                    "name": name,
-                    "path": profile_path,
-                    "created": created,
-                    "type": is_valid
-                })
-                
-        # Sort by creation time, newest first
-        profiles.sort(key=lambda x: x["created"], reverse=True)
-        
-        return profiles
-    
-    def get_profile_path(self, profile_name: str) -> Optional[str]:
-        """
-        Get the full path to a profile by name.
-        
-        Args:
-            profile_name (str): Name of the profile (not the full path)
-            
-        Returns:
-            str: Full path to the profile directory, or None if not found
-            
-        Example:
-            ```python
-            profiler = BrowserProfiler()
-            
-            path = profiler.get_profile_path("my-profile")
-            if path:
-                print(f"Profile path: {path}")
-            else:
-                print("Profile not found")
-            ```
-        """
-        profile_path = os.path.join(self.profiles_dir, profile_name)
-        
-        # Check if path exists and is a valid profile
-        if not os.path.isdir(profile_path):
-            return None
-        
-        # Look for profile indicators
-        is_profile = (
-            os.path.exists(os.path.join(profile_path, "Preferences")) or
-            os.path.exists(os.path.join(profile_path, "Default", "Preferences")) or
-            os.path.exists(os.path.join(profile_path, "prefs.js"))
-        )
-        
-        if not is_profile:
-            return None  # Not a valid browser profile
-            
-        return profile_path
-    
-    def delete_profile(self, profile_name_or_path: str) -> bool:
-        """
-        Delete a browser profile by name or path.
-        
-        Args:
-            profile_name_or_path (str): Name of the profile or full path to profile directory
-            
-        Returns:
-            bool: True if the profile was deleted successfully, False otherwise
-            
-        Example:
-            ```python
-            profiler = BrowserProfiler()
-            
-            # Delete by name
-            success = profiler.delete_profile("my-profile")
-            
-            # Delete by path
-            success = profiler.delete_profile("/path/to/.crawl4ai/profiles/my-profile")
-            ```
-        """
-        # Determine if input is a name or a path
-        if os.path.isabs(profile_name_or_path):
-            # Full path provided
-            profile_path = profile_name_or_path
-        else:
-            # Just a name provided, construct path
-            profile_path = os.path.join(self.profiles_dir, profile_name_or_path)
-        
-        # Check if path exists and is a valid profile
-        if not os.path.isdir(profile_path):
-            return False
-            
-        # Look for profile indicators
-        is_profile = (
-            os.path.exists(os.path.join(profile_path, "Preferences")) or
-            os.path.exists(os.path.join(profile_path, "Default", "Preferences")) or
-            os.path.exists(os.path.join(profile_path, "prefs.js"))
-        )
-        
-        if not is_profile:
-            return False  # Not a valid browser profile
-            
-        # Delete the profile directory
-        try:
-            shutil.rmtree(profile_path)
-            return True
-        except Exception:
-            return False
-            
-    async def interactive_manager(self, crawl_callback=None):
-        """
-        Launch an interactive profile management console.
-        
-        Args:
-            crawl_callback (callable, optional): Function to call when selecting option to use 
-                a profile for crawling. It will be called with (profile_path, url).
-                
-        Example:
-            ```python
-            profiler = BrowserProfiler()
-            
-            # Define a custom crawl function
-            async def my_crawl_function(profile_path, url):
-                print(f"Crawling {url} with profile {profile_path}")
-                # Implement your crawling logic here
-                
-            # Start interactive manager
-            await profiler.interactive_manager(crawl_callback=my_crawl_function)
-            ```
-        """
-        while True:
-            self.logger.info(f"\n{Fore.CYAN}Profile Management Options:{Style.RESET_ALL}", tag="MENU")
-            self.logger.info(f"1. {Fore.GREEN}Create a new profile{Style.RESET_ALL}", tag="MENU")
-            self.logger.info(f"2. {Fore.YELLOW}List available profiles{Style.RESET_ALL}", tag="MENU")
-            self.logger.info(f"3. {Fore.RED}Delete a profile{Style.RESET_ALL}", tag="MENU")
-            
-            # Only show crawl option if callback provided
-            if crawl_callback:
-                self.logger.info(f"4. {Fore.CYAN}Use a profile to crawl a website{Style.RESET_ALL}", tag="MENU")
-                self.logger.info(f"5. {Fore.MAGENTA}Exit{Style.RESET_ALL}", tag="MENU")
-                exit_option = "5"
-            else:
-                self.logger.info(f"4. {Fore.MAGENTA}Exit{Style.RESET_ALL}", tag="MENU")
-                exit_option = "4"
-            
-            choice = input(f"\n{Fore.CYAN}Enter your choice (1-{exit_option}): {Style.RESET_ALL}")
-            
-            if choice == "1":
-                # Create new profile
-                name = input(f"{Fore.GREEN}Enter a name for the new profile (or press Enter for auto-generated name): {Style.RESET_ALL}")
-                await self.create_profile(name or None)
-                
-            elif choice == "2":
-                # List profiles
-                profiles = self.list_profiles()
-                
-                if not profiles:
-                    self.logger.warning("  No profiles found. Create one first with option 1.", tag="PROFILES")
-                    continue
-                
-                # Print profile information with colorama formatting
-                self.logger.info("\nAvailable profiles:", tag="PROFILES")
-                for i, profile in enumerate(profiles):
-                    self.logger.info(f"[{i+1}] {Fore.CYAN}{profile['name']}{Style.RESET_ALL}", tag="PROFILES")
-                    self.logger.info(f"    Path: {Fore.YELLOW}{profile['path']}{Style.RESET_ALL}", tag="PROFILES")
-                    self.logger.info(f"    Created: {profile['created'].strftime('%Y-%m-%d %H:%M:%S')}", tag="PROFILES")
-                    self.logger.info(f"    Browser type: {profile['type']}", tag="PROFILES")
-                    self.logger.info("", tag="PROFILES")  # Empty line for spacing
-                
-            elif choice == "3":
-                # Delete profile
-                profiles = self.list_profiles()
-                if not profiles:
-                    self.logger.warning("No profiles found to delete", tag="PROFILES")
-                    continue
-                    
-                # Display numbered list
-                self.logger.info(f"\n{Fore.YELLOW}Available profiles:{Style.RESET_ALL}", tag="PROFILES")
-                for i, profile in enumerate(profiles):
-                    self.logger.info(f"[{i+1}] {profile['name']}", tag="PROFILES")
-                    
-                # Get profile to delete
-                profile_idx = input(f"{Fore.RED}Enter the number of the profile to delete (or 'c' to cancel): {Style.RESET_ALL}")
-                if profile_idx.lower() == 'c':
-                    continue
-                    
-                try:
-                    idx = int(profile_idx) - 1
-                    if 0 <= idx < len(profiles):
-                        profile_name = profiles[idx]["name"]
-                        self.logger.info(f"Deleting profile: {Fore.YELLOW}{profile_name}{Style.RESET_ALL}", tag="PROFILES")
-                        
-                        # Confirm deletion
-                        confirm = input(f"{Fore.RED}Are you sure you want to delete this profile? (y/n): {Style.RESET_ALL}")
-                        if confirm.lower() == 'y':
-                            success = self.delete_profile(profiles[idx]["path"])
-                            
-                            if success:
-                                self.logger.success(f"Profile {Fore.GREEN}{profile_name}{Style.RESET_ALL} deleted successfully", tag="PROFILES")
-                            else:
-                                self.logger.error(f"Failed to delete profile {Fore.RED}{profile_name}{Style.RESET_ALL}", tag="PROFILES")
-                    else:
-                        self.logger.error("Invalid profile number", tag="PROFILES")
-                except ValueError:
-                    self.logger.error("Please enter a valid number", tag="PROFILES")
-                    
-            elif choice == "4" and crawl_callback:
-                # Use profile to crawl a site
-                profiles = self.list_profiles()
-                if not profiles:
-                    self.logger.warning("No profiles found. Create one first.", tag="PROFILES")
-                    continue
-                    
-                # Display numbered list
-                self.logger.info(f"\n{Fore.YELLOW}Available profiles:{Style.RESET_ALL}", tag="PROFILES")
-                for i, profile in enumerate(profiles):
-                    self.logger.info(f"[{i+1}] {profile['name']}", tag="PROFILES")
-                    
-                # Get profile to use
-                profile_idx = input(f"{Fore.CYAN}Enter the number of the profile to use (or 'c' to cancel): {Style.RESET_ALL}")
-                if profile_idx.lower() == 'c':
-                    continue
-                    
-                try:
-                    idx = int(profile_idx) - 1
-                    if 0 <= idx < len(profiles):
-                        profile_path = profiles[idx]["path"]
-                        url = input(f"{Fore.CYAN}Enter the URL to crawl: {Style.RESET_ALL}")
-                        if url:
-                            # Call the provided crawl callback
-                            await crawl_callback(profile_path, url)
-                        else:
-                            self.logger.error("No URL provided", tag="CRAWL")
-                    else:
-                        self.logger.error("Invalid profile number", tag="PROFILES")
-                except ValueError:
-                    self.logger.error("Please enter a valid number", tag="PROFILES")
-                    
-            elif choice == exit_option:
-                # Exit
-                self.logger.info("Exiting profile management", tag="MENU")
-                break
-                
-            else:
-                self.logger.error(f"Invalid choice. Please enter a number between 1 and {exit_option}.", tag="MENU")

crawl4ai/chunking_strategy.py

@@ -4,6 +4,7 @@ from collections import Counter
 import string
 from .model_loader import load_nltk_punkt
 
+
 # Define the abstract base class for chunking strategies
 class ChunkingStrategy(ABC):
     """
@@ -71,7 +72,6 @@ class NlpSentenceChunking(ChunkingStrategy):
         """
         Initialize the NlpSentenceChunking object.
         """
-        from crawl4ai.le.legacy.model_loader import load_nltk_punkt
         load_nltk_punkt()
 
     def chunk(self, text: str) -> list:

crawl4ai/cli.py

@@ -1,782 +1,123 @@
 import click
-import os
-import time
-import datetime
 import sys
-import shutil
-import humanize
-from typing import Dict, Any, Optional, List
-import json
-import yaml
-import anyio
-from rich.console import Console
-from rich.table import Table
-from rich.panel import Panel
-from rich.prompt import Prompt, Confirm
-from rich.style import Style
+import asyncio
+from typing import List
+from .docs_manager import DocsManager
+from .async_logger import AsyncLogger
 
-from crawl4ai import (
-    CacheMode,
-    AsyncWebCrawler, 
-    CrawlResult,
-    BrowserConfig, 
-    CrawlerRunConfig,
-    LLMExtractionStrategy, 
-    JsonCssExtractionStrategy,
-    JsonXPathExtractionStrategy,
-    BM25ContentFilter, 
-    PruningContentFilter,
-    BrowserProfiler
-)
-from litellm import completion
-from pathlib import Path
-
-from crawl4ai.async_configs import LlmConfig
-
-# Initialize rich console
-console = Console()
-
-def get_global_config() -> dict:
-    config_dir = Path.home() / ".crawl4ai"
-    config_file = config_dir / "global.yml"
-    
-    if not config_file.exists():
-        config_dir.mkdir(parents=True, exist_ok=True)
-        return {}
-        
-    with open(config_file) as f:
-        return yaml.safe_load(f) or {}
-
-def save_global_config(config: dict):
-    config_file = Path.home() / ".crawl4ai" / "global.yml"
-    with open(config_file, "w") as f:
-        yaml.dump(config, f)
-
-def setup_llm_config() -> tuple[str, str]:
-    config = get_global_config()
-    provider = config.get("DEFAULT_LLM_PROVIDER")
-    token = config.get("DEFAULT_LLM_PROVIDER_TOKEN")
-    
-    if not provider:
-        click.echo("\nNo default LLM provider configured.")
-        click.echo("Provider format: 'company/model' (e.g., 'openai/gpt-4o', 'anthropic/claude-3-sonnet')")
-        click.echo("See available providers at: https://docs.litellm.ai/docs/providers")
-        provider = click.prompt("Enter provider")
-        
-    if not provider.startswith("ollama/"):
-        if not token:
-            token = click.prompt("Enter API token for " + provider, hide_input=True)
-    else:
-        token = "no-token"
-    
-    if not config.get("DEFAULT_LLM_PROVIDER") or not config.get("DEFAULT_LLM_PROVIDER_TOKEN"):
-        config["DEFAULT_LLM_PROVIDER"] = provider
-        config["DEFAULT_LLM_PROVIDER_TOKEN"] = token
-        save_global_config(config)
-        click.echo("\nConfiguration saved to ~/.crawl4ai/global.yml")
-    
-    return provider, token
-
-async def stream_llm_response(url: str, markdown: str, query: str, provider: str, token: str):
-    response = completion(
-        model=provider,
-        api_key=token,
-        messages=[
-            {
-                "content": f"You are Crawl4ai assistant, answering user question based on the provided context which is crawled from {url}.",
-                "role": "system"
-            },
-            {
-                "content": f"<|start of context|>\n{markdown}\n<|end of context|>\n\n{query}",
-                "role": "user"
-            },
-        ],
-        stream=True,
-    )
-    
-    for chunk in response:
-        if content := chunk["choices"][0]["delta"].get("content"):
-            print(content, end="", flush=True)
-    print()  # New line at end
+logger = AsyncLogger(verbose=True)
+docs_manager = DocsManager(logger)
 
 
+def print_table(headers: List[str], rows: List[List[str]], padding: int = 2):
+    """Print formatted table with headers and rows"""
+    widths = [max(len(str(cell)) for cell in col) for col in zip(headers, *rows)]
+    border = "+" + "+".join("-" * (w + 2 * padding) for w in widths) + "+"
 
-def parse_key_values(ctx, param, value) -> Dict[str, Any]:
-    if not value:
-        return {}
-    result = {}
-    pairs = value.split(',')
-    for pair in pairs:
-        try:
-            k, v = pair.split('=', 1)
-            # Handle common value types 
-            if v.lower() == 'true': v = True
-            elif v.lower() == 'false': v = False
-            elif v.isdigit(): v = int(v)
-            elif v.replace('.','',1).isdigit(): v = float(v)
-            elif v.startswith('[') and v.endswith(']'):
-                v = [x.strip() for x in v[1:-1].split(',') if x.strip()]
-            elif v.startswith('{') and v.endswith('}'):
-                try:
-                    v = json.loads(v)
-                except json.JSONDecodeError:
-                    raise click.BadParameter(f'Invalid JSON object: {v}')
-            result[k.strip()] = v
-        except ValueError:
-            raise click.BadParameter(f'Invalid key=value pair: {pair}')
-    return result
-
-def load_config_file(path: Optional[str]) -> dict:
-    if not path:
-        return {}
-    
-    try:
-        with open(path) as f:
-            if path.endswith((".yaml", ".yml")):
-                return yaml.safe_load(f)
-            return json.load(f)
-    except Exception as e:
-        raise click.BadParameter(f'Error loading config file {path}: {str(e)}')
-
-def load_schema_file(path: Optional[str]) -> dict:
-    if not path:
-        return None
-    return load_config_file(path)
-
-async def run_crawler(url: str, browser_cfg: BrowserConfig, crawler_cfg: CrawlerRunConfig, verbose: bool):
-    if verbose:
-        click.echo("Starting crawler with configurations:")
-        click.echo(f"Browser config: {browser_cfg.dump()}")
-        click.echo(f"Crawler config: {crawler_cfg.dump()}")
-
-    async with AsyncWebCrawler(config=browser_cfg) as crawler:
-        try:
-            result = await crawler.arun(url=url, config=crawler_cfg)
-            return result
-        except Exception as e:
-            raise click.ClickException(f"Crawling failed: {str(e)}")
-
-def show_examples():
-    examples = """
-🚀 Crawl4AI CLI Examples
-
-1️⃣  Basic Usage:
-    # Simple crawl with default settings
-    crwl https://example.com
-
-    # Get markdown output
-    crwl https://example.com -o markdown
-
-    # Verbose JSON output with cache bypass
-    crwl https://example.com -o json -v --bypass-cache
-
-2️⃣  Using Config Files:
-    # Using browser and crawler configs
-    crwl https://example.com -B browser.yml -C crawler.yml
-
-    # CSS-based extraction
-    crwl https://example.com -e extract_css.yml -s css_schema.json -o json
-
-    # LLM-based extraction
-    crwl https://example.com -e extract_llm.yml -s llm_schema.json -o json
-
-3️⃣  Direct Parameters:
-    # Browser settings
-    crwl https://example.com -b "headless=true,viewport_width=1280,user_agent_mode=random"
-
-    # Crawler settings
-    crwl https://example.com -c "css_selector=#main,delay_before_return_html=2,scan_full_page=true"
-
-4️⃣  Profile Management for Identity-Based Crawling:
-    # Launch interactive profile manager
-    crwl profiles
-
-    # Create, list, and delete browser profiles for identity-based crawling
-    # Use a profile for crawling (keeps you logged in)
-    crwl https://example.com -p my-profile-name
-
-    # Example: Crawl a site that requires login
-    # 1. First create a profile and log in:
-    crwl profiles
-    # 2. Then use that profile to crawl the authenticated site:
-    crwl https://site-requiring-login.com/dashboard -p my-profile-name
-
-5️⃣  Sample Config Files:
-
-browser.yml:
-    headless: true
-    viewport_width: 1280
-    user_agent_mode: "random"
-    verbose: true
-    ignore_https_errors: true
-
-extract_css.yml:
-    type: "json-css"
-    params:
-        verbose: true
-
-css_schema.json:
-    {
-      "name": "ArticleExtractor",
-      "baseSelector": ".article",
-      "fields": [
-        {
-          "name": "title",
-          "selector": "h1.title",
-          "type": "text"
-        },
-        {
-          "name": "link",
-          "selector": "a.read-more",
-          "type": "attribute",
-          "attribute": "href"
-        }
-      ]
-    }
-
-extract_llm.yml:
-    type: "llm"
-    provider: "openai/gpt-4"
-    instruction: "Extract all articles with their titles and links"
-    api_token: "your-token"
-    params:
-        temperature: 0.3
-        max_tokens: 1000
-
-llm_schema.json:
-    {
-      "title": "Article",
-      "type": "object",
-      "properties": {
-        "title": {
-          "type": "string",
-          "description": "The title of the article"
-        },
-        "link": {
-          "type": "string",
-          "description": "URL to the full article"
-        }
-      }
-    }
-
-6️⃣  Advanced Usage:
-    # Combine configs with direct parameters
-    crwl https://example.com -B browser.yml -b "headless=false,viewport_width=1920"
-
-    # Full extraction pipeline
-    crwl https://example.com \\
-        -B browser.yml \\
-        -C crawler.yml \\
-        -e extract_llm.yml \\
-        -s llm_schema.json \\
-        -o json \\
-        -v
-
-    # Content filtering with BM25
-    crwl https://example.com \\
-        -f filter_bm25.yml \\
-        -o markdown-fit
-
-    # Authenticated crawling with profile
-    crwl https://login-required-site.com \\
-        -p my-authenticated-profile \\
-        -c "css_selector=.dashboard-content" \\
-        -o markdown
-
-For more documentation visit: https://github.com/unclecode/crawl4ai
-
-7️⃣  Q&A with LLM:
-    # Ask a question about the content
-    crwl https://example.com -q "What is the main topic discussed?"
-
-    # First view content, then ask questions
-    crwl https://example.com -o markdown  # See the crawled content first
-    crwl https://example.com -q "Summarize the key points"
-    crwl https://example.com -q "What are the conclusions?"
-
-    # Advanced crawling with Q&A
-    crwl https://example.com \\
-        -B browser.yml \\
-        -c "css_selector=article,scan_full_page=true" \\
-        -q "What are the pros and cons mentioned?"
-
-    Note: First time using -q will prompt for LLM provider and API token.
-    These will be saved in ~/.crawl4ai/global.yml for future use.
-    
-    Supported provider format: 'company/model'
-    Examples:
-      - ollama/llama3.3
-      - openai/gpt-4
-      - anthropic/claude-3-sonnet
-      - cohere/command
-      - google/gemini-pro
-    
-    See full list of providers: https://docs.litellm.ai/docs/providers
-
-8️⃣ Profile Management:
-    # Launch interactive profile manager
-    crwl profiles
-
-    # Create a profile and use it for crawling
-    crwl profiles  # Create and set up your profile interactively
-    crwl https://example.com -p my-profile-name  # Use profile for crawling
-
-    # Example workflow for authenticated site
-    # 1. First create a profile and log in to the site:
-    crwl profiles  # Select "Create new profile" option
-    # 2. Then use that profile to crawl authenticated content:
-    crwl https://site-requiring-login.com/dashboard -p my-profile-name
-"""
-    click.echo(examples)
-
-def get_directory_size(path: str) -> int:
-    """Calculate the total size of a directory in bytes"""
-    total_size = 0
-    for dirpath, _, filenames in os.walk(path):
-        for f in filenames:
-            fp = os.path.join(dirpath, f)
-            if not os.path.islink(fp):
-                total_size += os.path.getsize(fp)
-    return total_size
-
-def display_profiles_table(profiles: List[Dict[str, Any]]):
-    """Display a rich table of browser profiles"""
-    if not profiles:
-        console.print(Panel("[yellow]No profiles found. Create one with the 'create' command.[/yellow]", 
-                          title="Browser Profiles", border_style="blue"))
-        return
-    
-    table = Table(title="Browser Profiles", show_header=True, header_style="bold cyan", border_style="blue")
-    table.add_column("#", style="dim", width=4)
-    table.add_column("Name", style="cyan", no_wrap=True)
-    table.add_column("Path", style="green")
-    table.add_column("Created", style="yellow")
-    table.add_column("Browser", style="magenta")
-    table.add_column("Size", style="blue", justify="right")
-    
-    for i, profile in enumerate(profiles):
-        # Calculate folder size
-        size = get_directory_size(profile["path"])
-        human_size = humanize.naturalsize(size)
-        
-        # Format creation date
-        created = profile["created"].strftime("%Y-%m-%d %H:%M")
-        
-        # Add row to table
-        table.add_row(
-            str(i+1), 
-            profile["name"], 
-            profile["path"], 
-            created, 
-            profile["type"].capitalize(), 
-            human_size
+    def format_row(row):
+        return (
+            "|"
+            + "|".join(
+                f"{' ' * padding}{str(cell):<{w}}{' ' * padding}"
+                for cell, w in zip(row, widths)
+            )
+            + "|"
         )
-    
-    console.print(table)
 
-async def create_profile_interactive(profiler: BrowserProfiler):
-    """Interactive profile creation wizard"""
-    console.print(Panel("[bold cyan]Create Browser Profile[/bold cyan]\n"
-                      "This will open a browser window for you to set up your identity.\n"
-                      "Log in to sites, adjust settings, then press 'q' to save.",
-                      border_style="cyan"))
-    
-    profile_name = Prompt.ask("[cyan]Enter profile name[/cyan]", default=f"profile_{int(time.time())}")
-    
-    console.print("[cyan]Creating profile...[/cyan]")
-    console.print("[yellow]A browser window will open. After logging in to sites, press 'q' in this terminal to save.[/yellow]")
-    
-    # Create the profile
-    try:
-        profile_path = await profiler.create_profile(profile_name)
-        
-        if profile_path:
-            console.print(f"[green]Profile successfully created at:[/green] {profile_path}")
-        else:
-            console.print("[red]Failed to create profile.[/red]")
-    except Exception as e:
-        console.print(f"[red]Error creating profile: {str(e)}[/red]")
+    click.echo(border)
+    click.echo(format_row(headers))
+    click.echo(border)
+    for row in rows:
+        click.echo(format_row(row))
+    click.echo(border)
 
-def delete_profile_interactive(profiler: BrowserProfiler):
-    """Interactive profile deletion"""
-    profiles = profiler.list_profiles()
-    
-    if not profiles:
-        console.print("[yellow]No profiles found to delete.[/yellow]")
-        return
-    
-    # Display profiles
-    display_profiles_table(profiles)
-    
-    # Get profile selection
-    idx = Prompt.ask(
-        "[red]Enter number of profile to delete[/red]", 
-        console=console,
-        choices=[str(i+1) for i in range(len(profiles))],
-        show_choices=False
-    )
-    
-    try:
-        idx = int(idx) - 1
-        profile = profiles[idx]
-        
-        # Confirm deletion
-        if Confirm.ask(f"[red]Are you sure you want to delete profile '{profile['name']}'?[/red]"):
-            success = profiler.delete_profile(profile["path"])
-            
-            if success:
-                console.print(f"[green]Profile '{profile['name']}' deleted successfully.[/green]")
-            else:
-                console.print(f"[red]Failed to delete profile '{profile['name']}'.[/red]")
-    except (ValueError, IndexError):
-        console.print("[red]Invalid selection.[/red]")
-        
-async def crawl_with_profile_cli(profile_path, url):
-    """Use a profile to crawl a website via CLI"""
-    console.print(f"[cyan]Crawling [bold]{url}[/bold] using profile at [bold]{profile_path}[/bold][/cyan]")
-    
-    # Create browser config with the profile
-    browser_cfg = BrowserConfig(
-        headless=False,  # Set to False to see the browser in action
-        use_managed_browser=True,
-        user_data_dir=profile_path
-    )
-    
-    # Default crawler config
-    crawler_cfg = CrawlerRunConfig()
-    
-    # Ask for output format
-    output_format = Prompt.ask(
-        "[cyan]Output format[/cyan]",
-        choices=["all", "json", "markdown", "md", "title"],
-        default="markdown"
-    )
-    
-    try:
-        # Run the crawler
-        result = await run_crawler(url, browser_cfg, crawler_cfg, True)
-        
-        # Handle output
-        if output_format == "all":
-            console.print(json.dumps(result.model_dump(), indent=2))
-        elif output_format == "json":
-            console.print(json.dumps(json.loads(result.extracted_content), indent=2))
-        elif output_format in ["markdown", "md"]:
-            console.print(result.markdown.raw_markdown)
-        elif output_format == "title":
-            console.print(result.metadata.get("title", "No title found"))
-        
-        console.print(f"[green]Successfully crawled[/green] {url}")
-        return result
-    except Exception as e:
-        console.print(f"[red]Error crawling:[/red] {str(e)}")
-        return None
-        
-async def use_profile_to_crawl():
-    """Interactive profile selection for crawling"""
-    profiler = BrowserProfiler()
-    profiles = profiler.list_profiles()
-    
-    if not profiles:
-        console.print("[yellow]No profiles found. Create one first.[/yellow]")
-        return
-        
-    # Display profiles
-    display_profiles_table(profiles)
-    
-    # Get profile selection
-    idx = Prompt.ask(
-        "[cyan]Enter number of profile to use[/cyan]", 
-        console=console,
-        choices=[str(i+1) for i in range(len(profiles))],
-        show_choices=False
-    )
-    
-    try:
-        idx = int(idx) - 1
-        profile = profiles[idx]
-        
-        # Get URL
-        url = Prompt.ask("[cyan]Enter URL to crawl[/cyan]")
-        if url:
-            # Crawl with the selected profile
-            await crawl_with_profile_cli(profile["path"], url)
-        else:
-            console.print("[red]No URL provided[/red]")
-    except (ValueError, IndexError):
-        console.print("[red]Invalid selection[/red]")
 
-async def manage_profiles():
-    """Interactive profile management menu"""
-    profiler = BrowserProfiler()
-    
-    options = {
-        "1": "List profiles",
-        "2": "Create new profile",
-        "3": "Delete profile",
-        "4": "Use a profile to crawl a website",
-        "5": "Exit",
-    }
-    
-    while True:
-        console.print(Panel("[bold cyan]Browser Profile Manager[/bold cyan]", border_style="cyan"))
-        
-        for key, value in options.items():
-            color = "green" if key == "1" else "yellow" if key == "2" else "red" if key == "3" else "blue" if key == "4" else "cyan"
-            console.print(f"[{color}]{key}[/{color}]. {value}")
-        
-        choice = Prompt.ask("Enter choice", choices=list(options.keys()), default="1")
-        
-        if choice == "1":
-            # List profiles
-            profiles = profiler.list_profiles()
-            display_profiles_table(profiles)
-        
-        elif choice == "2":
-            # Create profile
-            await create_profile_interactive(profiler)
-        
-        elif choice == "3":
-            # Delete profile
-            delete_profile_interactive(profiler)
-            
-        elif choice == "4":
-            # Use profile to crawl
-            await use_profile_to_crawl()
-        
-        elif choice == "5":
-            # Exit
-            console.print("[cyan]Exiting profile manager.[/cyan]")
-            break
-        
-        # Add a separator between operations
-        console.print("\n")
-
-@click.group(context_settings={"help_option_names": ["-h", "--help"]})
+@click.group()
 def cli():
-    """Crawl4AI CLI - Web content extraction and browser profile management tool"""
+    """Crawl4AI Command Line Interface"""
     pass
 
-@cli.command("crawl")
-@click.argument("url", required=True)
-@click.option("--browser-config", "-B", type=click.Path(exists=True), help="Browser config file (YAML/JSON)")
-@click.option("--crawler-config", "-C", type=click.Path(exists=True), help="Crawler config file (YAML/JSON)")
-@click.option("--filter-config", "-f", type=click.Path(exists=True), help="Content filter config file")
-@click.option("--extraction-config", "-e", type=click.Path(exists=True), help="Extraction strategy config file")
-@click.option("--schema", "-s", type=click.Path(exists=True), help="JSON schema for extraction")
-@click.option("--browser", "-b", type=str, callback=parse_key_values, help="Browser parameters as key1=value1,key2=value2")
-@click.option("--crawler", "-c", type=str, callback=parse_key_values, help="Crawler parameters as key1=value1,key2=value2")
-@click.option("--output", "-o", type=click.Choice(["all", "json", "markdown", "md", "markdown-fit", "md-fit"]), default="all")
-@click.option("--bypass-cache", is_flag=True, default=True, help="Bypass cache when crawling")
-@click.option("--question", "-q", help="Ask a question about the crawled content")
-@click.option("--verbose", "-v", is_flag=True)
-@click.option("--profile", "-p", help="Use a specific browser profile (by name)")
-def crawl_cmd(url: str, browser_config: str, crawler_config: str, filter_config: str, 
-           extraction_config: str, schema: str, browser: Dict, crawler: Dict,
-           output: str, bypass_cache: bool, question: str, verbose: bool, profile: str):
-    """Crawl a website and extract content
-    
-    Simple Usage:
-        crwl crawl https://example.com
-    """
-    
-    # Handle profile option
-    if profile:
-        profiler = BrowserProfiler()
-        profile_path = profiler.get_profile_path(profile)
-        
-        if not profile_path:
-            profiles = profiler.list_profiles()
-            
-            if profiles:
-                console.print(f"[red]Profile '{profile}' not found. Available profiles:[/red]")
-                display_profiles_table(profiles)
-            else:
-                console.print("[red]No profiles found. Create one with 'crwl profiles'[/red]")
-            
-            return
-        
-        # Include the profile in browser config
-        if not browser:
-            browser = {}
-        browser["user_data_dir"] = profile_path
-        browser["use_managed_browser"] = True
-        
-        if verbose:
-            console.print(f"[green]Using browser profile:[/green] {profile}")
-            
+
+@cli.group()
+def docs():
+    """Documentation operations"""
+    pass
+
+
+@docs.command()
+@click.argument("sections", nargs=-1)
+@click.option(
+    "--mode", type=click.Choice(["extended", "condensed"]), default="extended"
+)
+def combine(sections: tuple, mode: str):
+    """Combine documentation sections"""
     try:
-        # Load base configurations
-        browser_cfg = BrowserConfig.load(load_config_file(browser_config))
-        crawler_cfg = CrawlerRunConfig.load(load_config_file(crawler_config))
-        
-        # Override with CLI params
-        if browser:
-            browser_cfg = browser_cfg.clone(**browser)
-        if crawler:
-            crawler_cfg = crawler_cfg.clone(**crawler)
-            
-        # Handle content filter config
-        if filter_config:
-            filter_conf = load_config_file(filter_config)
-            if filter_conf["type"] == "bm25":
-                crawler_cfg.content_filter = BM25ContentFilter(
-                    user_query=filter_conf.get("query"),
-                    bm25_threshold=filter_conf.get("threshold", 1.0)
-                )
-            elif filter_conf["type"] == "pruning":
-                crawler_cfg.content_filter = PruningContentFilter(
-                    user_query=filter_conf.get("query"),
-                    threshold=filter_conf.get("threshold", 0.48)
-                )
-                
-        # Handle extraction strategy
-        if extraction_config:
-            extract_conf = load_config_file(extraction_config)
-            schema_data = load_schema_file(schema)
-            
-            # Check if type does not exist show proper message
-            if not extract_conf.get("type"):
-                raise click.ClickException("Extraction type not specified")
-            if extract_conf["type"] not in ["llm", "json-css", "json-xpath"]:
-                raise click.ClickException(f"Invalid extraction type: {extract_conf['type']}")
-            
-            if extract_conf["type"] == "llm":
-                # if no provider show error emssage
-                if not extract_conf.get("provider") or not extract_conf.get("api_token"):
-                    raise click.ClickException("LLM provider and API token are required for LLM extraction")
-
-                crawler_cfg.extraction_strategy = LLMExtractionStrategy(
-                    llmConfig=LlmConfig(provider=extract_conf["provider"], api_token=extract_conf["api_token"]),
-                    instruction=extract_conf["instruction"],
-                    schema=schema_data,
-                    **extract_conf.get("params", {})
-                )
-            elif extract_conf["type"] == "json-css":
-                crawler_cfg.extraction_strategy = JsonCssExtractionStrategy(
-                    schema=schema_data
-                )
-            elif extract_conf["type"] == "json-xpath":
-                crawler_cfg.extraction_strategy = JsonXPathExtractionStrategy(
-                    schema=schema_data
-                )
-                
-
-        # No cache
-        if bypass_cache:
-            crawler_cfg.cache_mode = CacheMode.BYPASS
-        
-        # Run crawler
-        result : CrawlResult = anyio.run(
-            run_crawler,
-            url,
-            browser_cfg,
-            crawler_cfg,
-            verbose
-        )
-
-        # Handle question
-        if question:
-            provider, token = setup_llm_config()
-            markdown = result.markdown.raw_markdown
-            anyio.run(stream_llm_response, url, markdown, question, provider, token)
-            return
-        
-        # Handle output
-        if output == "all":
-            click.echo(json.dumps(result.model_dump(), indent=2))
-        elif output == "json":
-            click.echo(json.dumps(json.loads(result.extracted_content), indent=2))
-        elif output in ["markdown", "md"]:
-            click.echo(result.markdown.raw_markdown)
-        elif output in ["markdown-fit", "md-fit"]:
-            click.echo(result.markdown.fit_markdown)
-            
+        asyncio.run(docs_manager.ensure_docs_exist())
+        click.echo(docs_manager.generate(sections, mode))
     except Exception as e:
-        raise click.ClickException(str(e))
+        logger.error(str(e), tag="ERROR")
+        sys.exit(1)
 
-@cli.command("examples")
-def examples_cmd():
-    """Show usage examples"""
-    show_examples()
 
-@cli.command("profiles")
-def profiles_cmd():
-    """Manage browser profiles interactively
-    
-    Launch an interactive browser profile manager where you can:
-    - List all existing profiles
-    - Create new profiles for authenticated browsing
-    - Delete unused profiles
-    """
-    # Run interactive profile manager
-    anyio.run(manage_profiles)
+@docs.command()
+@click.argument("query")
+@click.option("--top-k", "-k", default=5)
+@click.option("--build-index", is_flag=True, help="Build index if missing")
+def search(query: str, top_k: int, build_index: bool):
+    """Search documentation"""
+    try:
+        result = docs_manager.search(query, top_k)
+        if result == "No search index available. Call build_search_index() first.":
+            if build_index or click.confirm("No search index found. Build it now?"):
+                asyncio.run(docs_manager.llm_text.generate_index_files())
+                result = docs_manager.search(query, top_k)
+        click.echo(result)
+    except Exception as e:
+        click.echo(f"Error: {str(e)}", err=True)
+        sys.exit(1)
 
-@cli.command(name="")
-@click.argument("url", required=False)
-@click.option("--example", is_flag=True, help="Show usage examples")
-@click.option("--browser-config", "-B", type=click.Path(exists=True), help="Browser config file (YAML/JSON)")
-@click.option("--crawler-config", "-C", type=click.Path(exists=True), help="Crawler config file (YAML/JSON)")
-@click.option("--filter-config", "-f", type=click.Path(exists=True), help="Content filter config file")
-@click.option("--extraction-config", "-e", type=click.Path(exists=True), help="Extraction strategy config file")
-@click.option("--schema", "-s", type=click.Path(exists=True), help="JSON schema for extraction")
-@click.option("--browser", "-b", type=str, callback=parse_key_values, help="Browser parameters as key1=value1,key2=value2")
-@click.option("--crawler", "-c", type=str, callback=parse_key_values, help="Crawler parameters as key1=value1,key2=value2")
-@click.option("--output", "-o", type=click.Choice(["all", "json", "markdown", "md", "markdown-fit", "md-fit"]), default="all")
-@click.option("--bypass-cache", is_flag=True, default=True, help="Bypass cache when crawling")
-@click.option("--question", "-q", help="Ask a question about the crawled content")
-@click.option("--verbose", "-v", is_flag=True)
-@click.option("--profile", "-p", help="Use a specific browser profile (by name)")
-def default(url: str, example: bool, browser_config: str, crawler_config: str, filter_config: str, 
-        extraction_config: str, schema: str, browser: Dict, crawler: Dict,
-        output: str, bypass_cache: bool, question: str, verbose: bool, profile: str):
-    """Crawl4AI CLI - Web content extraction tool
 
-    Simple Usage:
-        crwl https://example.com
-    
-    Run with --example to see detailed usage examples.
-    
-    Other commands:
-        crwl profiles   - Manage browser profiles for identity-based crawling
-        crwl crawl      - Crawl a website with advanced options
-        crwl examples   - Show more usage examples
-    """
+@docs.command()
+def update():
+    """Update docs from GitHub"""
+    try:
+        asyncio.run(docs_manager.fetch_docs())
+        click.echo("Documentation updated successfully")
+    except Exception as e:
+        click.echo(f"Error: {str(e)}", err=True)
+        sys.exit(1)
 
-    if example:
-        show_examples()
-        return
-        
-    if not url:
-        # Show help without error message
-        ctx = click.get_current_context()
-        click.echo(ctx.get_help())
-        return
-        
-    # Forward to crawl command
-    ctx = click.get_current_context()
-    ctx.invoke(
-        crawl_cmd, 
-        url=url, 
-        browser_config=browser_config,
-        crawler_config=crawler_config,
-        filter_config=filter_config,
-        extraction_config=extraction_config, 
-        schema=schema,
-        browser=browser,
-        crawler=crawler,
-        output=output,
-        bypass_cache=bypass_cache,
-        question=question,
-        verbose=verbose,
-        profile=profile
-    )
 
-def main():
-    import sys
-    if len(sys.argv) < 2 or sys.argv[1] not in cli.commands:
-        sys.argv.insert(1, "crawl")
-    cli()
+@docs.command()
+@click.option("--force-facts", is_flag=True, help="Force regenerate fact files")
+@click.option("--clear-cache", is_flag=True, help="Clear BM25 cache")
+def index(force_facts: bool, clear_cache: bool):
+    """Build or rebuild search indexes"""
+    try:
+        asyncio.run(docs_manager.ensure_docs_exist())
+        asyncio.run(
+            docs_manager.llm_text.generate_index_files(
+                force_generate_facts=force_facts, clear_bm25_cache=clear_cache
+            )
+        )
+        click.echo("Search indexes built successfully")
+    except Exception as e:
+        click.echo(f"Error: {str(e)}", err=True)
+        sys.exit(1)
+
+
+# Add docs list command
+@docs.command()
+def list():
+    """List available documentation sections"""
+    try:
+        sections = docs_manager.list()
+        print_table(["Sections"], [[section] for section in sections])
+
+    except Exception as e:
+        click.echo(f"Error: {str(e)}", err=True)
+        sys.exit(1)
+
 
 if __name__ == "__main__":
-    main()
+    cli()

crawl4ai/config.py

@@ -15,18 +15,10 @@ PROVIDER_MODELS = {
     "openai/gpt-4o": os.getenv("OPENAI_API_KEY"),
     "openai/o1-mini": os.getenv("OPENAI_API_KEY"),
     "openai/o1-preview": os.getenv("OPENAI_API_KEY"),
-    "openai/o3-mini": os.getenv("OPENAI_API_KEY"),
-    "openai/o3-mini-high": os.getenv("OPENAI_API_KEY"),
     "anthropic/claude-3-haiku-20240307": os.getenv("ANTHROPIC_API_KEY"),
     "anthropic/claude-3-opus-20240229": os.getenv("ANTHROPIC_API_KEY"),
     "anthropic/claude-3-sonnet-20240229": os.getenv("ANTHROPIC_API_KEY"),
     "anthropic/claude-3-5-sonnet-20240620": os.getenv("ANTHROPIC_API_KEY"),
-    "gemini/gemini-pro": os.getenv("GEMINI_API_KEY"),
-    'gemini/gemini-1.5-pro': os.getenv("GEMINI_API_KEY"),
-    'gemini/gemini-2.0-flash': os.getenv("GEMINI_API_KEY"),
-    'gemini/gemini-2.0-flash-exp': os.getenv("GEMINI_API_KEY"),
-    'gemini/gemini-2.0-flash-lite-preview-02-05': os.getenv("GEMINI_API_KEY"),
-    "deepseek/deepseek-chat": os.getenv("DEEPSEEK_API_KEY"),
 }
 
 # Chunk token threshold
@@ -92,3 +84,4 @@ SHOW_DEPRECATION_WARNINGS = True
 SCREENSHOT_HEIGHT_TRESHOLD = 10000
 PAGE_TIMEOUT = 60000
 DOWNLOAD_PAGE_TIMEOUT = 60000
+DEEP_CRAWL_BATCH_SIZE = 5

crawl4ai/configs/__init__.py

@@ -1,2 +0,0 @@
-from .proxy_config import ProxyConfig
-__all__ = ["ProxyConfig"]

crawl4ai/configs/proxy_config.py

@@ -1,113 +0,0 @@
-import os
-from typing import Dict, List, Optional
-
-
-class ProxyConfig:
-    def __init__(
-        self,
-        server: str,
-        username: Optional[str] = None,
-        password: Optional[str] = None,
-        ip: Optional[str] = None,
-    ):
-        """Configuration class for a single proxy.
-        
-        Args:
-            server: Proxy server URL (e.g., "http://127.0.0.1:8080")
-            username: Optional username for proxy authentication
-            password: Optional password for proxy authentication
-            ip: Optional IP address for verification purposes
-        """
-        self.server = server
-        self.username = username
-        self.password = password
-        
-        # Extract IP from server if not explicitly provided
-        self.ip = ip or self._extract_ip_from_server()
-    
-    def _extract_ip_from_server(self) -> Optional[str]:
-        """Extract IP address from server URL."""
-        try:
-            # Simple extraction assuming http://ip:port format
-            if "://" in self.server:
-                parts = self.server.split("://")[1].split(":")
-                return parts[0]
-            else:
-                parts = self.server.split(":")
-                return parts[0]
-        except Exception:
-            return None
-    
-    @staticmethod
-    def from_string(proxy_str: str) -> "ProxyConfig":
-        """Create a ProxyConfig from a string in the format 'ip:port:username:password'."""
-        parts = proxy_str.split(":")
-        if len(parts) == 4:  # ip:port:username:password
-            ip, port, username, password = parts
-            return ProxyConfig(
-                server=f"http://{ip}:{port}",
-                username=username,
-                password=password,
-                ip=ip
-            )
-        elif len(parts) == 2:  # ip:port only
-            ip, port = parts
-            return ProxyConfig(
-                server=f"http://{ip}:{port}",
-                ip=ip
-            )
-        else:
-            raise ValueError(f"Invalid proxy string format: {proxy_str}")
-    
-    @staticmethod
-    def from_dict(proxy_dict: Dict) -> "ProxyConfig":
-        """Create a ProxyConfig from a dictionary."""
-        return ProxyConfig(
-            server=proxy_dict.get("server"),
-            username=proxy_dict.get("username"),
-            password=proxy_dict.get("password"),
-            ip=proxy_dict.get("ip")
-        )
-    
-    @staticmethod
-    def from_env(env_var: str = "PROXIES") -> List["ProxyConfig"]:
-        """Load proxies from environment variable.
-        
-        Args:
-            env_var: Name of environment variable containing comma-separated proxy strings
-            
-        Returns:
-            List of ProxyConfig objects
-        """
-        proxies = []
-        try:
-            proxy_list = os.getenv(env_var, "").split(",")
-            for proxy in proxy_list:
-                if not proxy:
-                    continue
-                proxies.append(ProxyConfig.from_string(proxy))
-        except Exception as e:
-            print(f"Error loading proxies from environment: {e}")
-        return proxies
-    
-    def to_dict(self) -> Dict:
-        """Convert to dictionary representation."""
-        return {
-            "server": self.server,
-            "username": self.username,
-            "password": self.password,
-            "ip": self.ip
-        }
-    
-    def clone(self, **kwargs) -> "ProxyConfig":
-        """Create a copy of this configuration with updated values.
-
-        Args:
-            **kwargs: Key-value pairs of configuration options to update
-
-        Returns:
-            ProxyConfig: A new instance with the specified updates
-        """
-        config_dict = self.to_dict()
-        config_dict.update(kwargs)
-        return ProxyConfig.from_dict(config_dict)

crawl4ai/content_filter_strategy.py

@@ -1,4 +1,3 @@
-import inspect
 import re
 import time
 from bs4 import BeautifulSoup, Tag
@@ -6,47 +5,25 @@ from typing import List, Tuple, Dict, Optional
 from rank_bm25 import BM25Okapi
 from collections import deque
 from bs4 import NavigableString, Comment
-
-from .utils import (
-    clean_tokens,
-    perform_completion_with_backoff,
-    escape_json_string,
-    sanitize_html,
-    get_home_folder,
-    extract_xml_data,
-    merge_chunks,
-)
+from .utils import clean_tokens, perform_completion_with_backoff, escape_json_string, sanitize_html, get_home_folder, extract_xml_data
 from abc import ABC, abstractmethod
 import math
 from snowballstemmer import stemmer
-from .config import DEFAULT_PROVIDER, OVERLAP_RATE, WORD_TOKEN_RATE, PROVIDER_MODELS
+from .config import DEFAULT_PROVIDER, OVERLAP_RATE, WORD_TOKEN_RATE
 from .models import TokenUsage
 from .prompts import PROMPT_FILTER_CONTENT
 import os
 import json
 import hashlib
 from pathlib import Path
-from concurrent.futures import ThreadPoolExecutor
+from concurrent.futures import ThreadPoolExecutor, as_completed
 from .async_logger import AsyncLogger, LogLevel
-from colorama import Fore, Style
-
+from colorama import Fore, Style, init
 
 class RelevantContentFilter(ABC):
     """Abstract base class for content filtering strategies"""
 
-    def __init__(
-        self,
-        user_query: str = None,
-        verbose: bool = False,
-        logger: Optional[AsyncLogger] = None,
-    ):
-        """
-        Initializes the RelevantContentFilter class with optional user query.
-
-        Args:
-            user_query (str): User query for filtering (optional).
-            verbose (bool): Enable verbose logging (default: False).
-        """
+    def __init__(self, user_query: str = None):
         self.user_query = user_query
         self.included_tags = {
             # Primary structure
@@ -115,8 +92,6 @@ class RelevantContentFilter(ABC):
             r"nav|footer|header|sidebar|ads|comment|promo|advert|social|share", re.I
         )
         self.min_word_count = 2
-        self.verbose = False
-        self.logger = logger
 
     @abstractmethod
     def filter_content(self, html: str) -> List[str]:
@@ -378,7 +353,6 @@ class RelevantContentFilter(ABC):
         except Exception:
             return str(tag)  # Fallback to original if anything fails
 
-
 class BM25ContentFilter(RelevantContentFilter):
     """
     Content filtering using BM25 algorithm with priority tag handling.
@@ -521,7 +495,6 @@ class BM25ContentFilter(RelevantContentFilter):
 
         return [self.clean_element(tag) for _, _, tag in selected_candidates]
 
-
 class PruningContentFilter(RelevantContentFilter):
     """
     Content filtering using pruning algorithm with dynamic threshold.
@@ -768,21 +741,13 @@ class PruningContentFilter(RelevantContentFilter):
                 class_id_score -= 0.5
         return class_id_score
 
-
 class LLMContentFilter(RelevantContentFilter):
     """Content filtering using LLMs to generate relevant markdown."""
-    _UNWANTED_PROPS = {
-        'provider' : 'Instead, use llmConfig=LlmConfig(provider="...")',
-        'api_token' : 'Instead, use llmConfig=LlMConfig(api_token="...")',
-        'base_url' : 'Instead, use llmConfig=LlmConfig(base_url="...")',
-        'api_base' : 'Instead, use llmConfig=LlmConfig(base_url="...")',
-    }
 
     def __init__(
         self,
         provider: str = DEFAULT_PROVIDER,
         api_token: Optional[str] = None,
-        llmConfig: "LlmConfig" = None,
         instruction: str = None,
         chunk_token_threshold: int = int(1e9),
         overlap_rate: float = OVERLAP_RATE,
@@ -790,90 +755,96 @@ class LLMContentFilter(RelevantContentFilter):
         base_url: Optional[str] = None,
         api_base: Optional[str] = None,
         extra_args: Dict = None,
-        # char_token_rate: float = WORD_TOKEN_RATE * 5,
-        # chunk_mode: str = "char",
         verbose: bool = False,
         logger: Optional[AsyncLogger] = None,
-        ignore_cache: bool = True,
     ):
         super().__init__(None)
         self.provider = provider
-        self.api_token = api_token
-        self.base_url = base_url or api_base
-        self.llmConfig = llmConfig
+        self.api_token = (
+            api_token
+            or PROVIDER_MODELS.get(provider, "no-token")
+            or os.getenv("OPENAI_API_KEY")
+        )
         self.instruction = instruction
         self.chunk_token_threshold = chunk_token_threshold
         self.overlap_rate = overlap_rate
-        self.word_token_rate = word_token_rate or WORD_TOKEN_RATE
-        # self.chunk_mode: str = chunk_mode
-        # self.char_token_rate = char_token_rate or word_token_rate / 5
-        # self.token_rate = word_token_rate if chunk_mode == "word" else self.char_token_rate
-        self.token_rate = word_token_rate or WORD_TOKEN_RATE
+        self.word_token_rate = word_token_rate
+        self.base_url = base_url
+        self.api_base = api_base or base_url
         self.extra_args = extra_args or {}
-        self.ignore_cache = ignore_cache
         self.verbose = verbose
-
+        
         # Setup logger with custom styling for LLM operations
         if logger:
             self.logger = logger
         elif verbose:
             self.logger = AsyncLogger(
-                verbose=verbose,
+                verbose=True,
                 icons={
                     **AsyncLogger.DEFAULT_ICONS,
                     "LLM": "★",  # Star for LLM operations
                     "CHUNK": "◈",  # Diamond for chunks
-                    "CACHE": "⚡",  # Lightning for cache operations
+                    "CACHE": "⚡", # Lightning for cache operations
                 },
                 colors={
                     **AsyncLogger.DEFAULT_COLORS,
-                    LogLevel.INFO: Fore.MAGENTA
-                    + Style.DIM,  # Dimmed purple for LLM ops
-                },
+                    LogLevel.INFO: Fore.MAGENTA + Style.DIM,  # Dimmed purple for LLM ops
+                }
             )
         else:
             self.logger = None
-
+        
         self.usages = []
         self.total_usage = TokenUsage()
-    
-    def __setattr__(self, name, value):
-        """Handle attribute setting."""
-        # TODO: Planning to set properties dynamically based on the __init__ signature
-        sig = inspect.signature(self.__init__)
-        all_params = sig.parameters  # Dictionary of parameter names and their details
 
-        if name in self._UNWANTED_PROPS and value is not all_params[name].default:
-            raise AttributeError(f"Setting '{name}' is deprecated. {self._UNWANTED_PROPS[name]}")
-        
-        super().__setattr__(name, value)  
-        
     def _get_cache_key(self, html: str, instruction: str) -> str:
         """Generate a unique cache key based on HTML and instruction"""
         content = f"{html}{instruction}"
         return hashlib.md5(content.encode()).hexdigest()
 
     def _merge_chunks(self, text: str) -> List[str]:
-        """Split text into chunks with overlap using char or word mode."""
-        ov = int(self.chunk_token_threshold * self.overlap_rate)
-        sections = merge_chunks(
-            docs=[text],
-            target_size=self.chunk_token_threshold,
-            overlap=ov,
-            word_token_ratio=self.word_token_rate,
-        )
-        return sections
+        """Split text into chunks with overlap"""
+        # Calculate tokens and sections
+        total_tokens = len(text.split()) * self.word_token_rate
+        num_sections = max(1, math.floor(total_tokens / self.chunk_token_threshold))
+        adjusted_chunk_threshold = total_tokens / num_sections
 
-    def filter_content(self, html: str, ignore_cache: bool = True) -> List[str]:
+        # Split into words
+        words = text.split()
+        chunks = []
+        current_chunk = []
+        current_token_count = 0
+
+        for word in words:
+            word_tokens = len(word) * self.word_token_rate
+            if current_token_count + word_tokens <= adjusted_chunk_threshold:
+                current_chunk.append(word)
+                current_token_count += word_tokens
+            else:
+                # Add overlap if not the last chunk
+                if chunks and self.overlap_rate > 0:
+                    overlap_size = int(len(current_chunk) * self.overlap_rate)
+                    current_chunk.extend(current_chunk[-overlap_size:])
+                
+                chunks.append(" ".join(current_chunk))
+                current_chunk = [word]
+                current_token_count = word_tokens
+
+        if current_chunk:
+            chunks.append(" ".join(current_chunk))
+
+        return chunks
+
+    def filter_content(self, html: str, ignore_cache: bool = False) -> List[str]:
         if not html or not isinstance(html, str):
             return []
 
         if self.logger:
             self.logger.info(
-                "Starting LLM markdown content filtering process",
+                "Starting LLM content filtering process", 
                 tag="LLM",
-                params={"provider": self.llmConfig.provider},
-                colors={"provider": Fore.CYAN},
+                params={"provider": self.provider},
+                colors={"provider": Fore.CYAN}
             )
 
         # Cache handling
@@ -882,88 +853,65 @@ class LLMContentFilter(RelevantContentFilter):
         cache_key = self._get_cache_key(html, self.instruction or "")
         cache_file = cache_dir / f"{cache_key}.json"
 
-        # if ignore_cache == None:
-        ignore_cache = self.ignore_cache
-
         if not ignore_cache and cache_file.exists():
             if self.logger:
-                self.logger.info("Found  cached markdown result", tag="CACHE")
+                self.logger.info("Found cached result", tag="CACHE")
             try:
-                with cache_file.open("r") as f:
+                with cache_file.open('r') as f:
                     cached_data = json.load(f)
-                    usage = TokenUsage(**cached_data["usage"])
+                    usage = TokenUsage(**cached_data['usage'])
                     self.usages.append(usage)
                     self.total_usage.completion_tokens += usage.completion_tokens
                     self.total_usage.prompt_tokens += usage.prompt_tokens
                     self.total_usage.total_tokens += usage.total_tokens
-                    return cached_data["blocks"]
+                    return cached_data['blocks']
             except Exception as e:
                 if self.logger:
-                    self.logger.error(
-                        f"LLM markdown: Cache read error: {str(e)}", tag="CACHE"
-                    )
+                    self.logger.error(f"Cache read error: {str(e)}", tag="CACHE")
 
         # Split into chunks
         html_chunks = self._merge_chunks(html)
         if self.logger:
             self.logger.info(
-                "LLM markdown: Split content into {chunk_count} chunks",
+                "Split content into {chunk_count} chunks", 
                 tag="CHUNK",
                 params={"chunk_count": len(html_chunks)},
-                colors={"chunk_count": Fore.YELLOW},
+                colors={"chunk_count": Fore.YELLOW}
             )
-
+        
+        extracted_content = []
         start_time = time.time()
-
+        
         # Process chunks in parallel
         with ThreadPoolExecutor(max_workers=4) as executor:
             futures = []
             for i, chunk in enumerate(html_chunks):
                 if self.logger:
                     self.logger.debug(
-                        "LLM markdown: Processing chunk {chunk_num}/{total_chunks}",
+                        "Processing chunk {chunk_num}/{total_chunks}", 
                         tag="CHUNK",
-                        params={"chunk_num": i + 1, "total_chunks": len(html_chunks)},
+                        params={
+                            "chunk_num": i + 1,
+                            "total_chunks": len(html_chunks)
+                        }
                     )
 
                 prompt_variables = {
                     "HTML": escape_json_string(sanitize_html(chunk)),
-                    "REQUEST": self.instruction
-                    or "Convert this HTML into clean, relevant markdown, removing any noise or irrelevant content.",
+                    "REQUEST": self.instruction or "Convert this HTML into clean, relevant markdown, removing any noise or irrelevant content."
                 }
 
                 prompt = PROMPT_FILTER_CONTENT
                 for var, value in prompt_variables.items():
                     prompt = prompt.replace("{" + var + "}", value)
 
-                def _proceed_with_chunk(
-                    provider: str,
-                    prompt: str,
-                    api_token: str,
-                    base_url: Optional[str] = None,
-                    extra_args: Dict = {},
-                ) -> List[str]:
-                    if self.logger:
-                        self.logger.info(
-                            "LLM Markdown: Processing chunk {chunk_num}",
-                            tag="CHUNK",
-                            params={"chunk_num": i + 1},
-                        )
-                    return perform_completion_with_backoff(
-                        provider,
-                        prompt,
-                        api_token,
-                        base_url=base_url,
-                        extra_args=extra_args,
-                    )
-
                 future = executor.submit(
-                    _proceed_with_chunk,
-                    self.llmConfig.provider,
+                    perform_completion_with_backoff,
+                    self.provider,
                     prompt,
-                    self.llmConfig.api_token,
-                    self.llmConfig.base_url,
-                    self.extra_args,
+                    self.api_token,
+                    base_url=self.api_base,
+                    extra_args=self.extra_args
                 )
                 futures.append((i, future))
 
@@ -972,61 +920,59 @@ class LLMContentFilter(RelevantContentFilter):
             for i, future in sorted(futures):
                 try:
                     response = future.result()
-
+                    
                     # Track usage
                     usage = TokenUsage(
                         completion_tokens=response.usage.completion_tokens,
                         prompt_tokens=response.usage.prompt_tokens,
                         total_tokens=response.usage.total_tokens,
-                        completion_tokens_details=(
-                            response.usage.completion_tokens_details.__dict__
-                            if response.usage.completion_tokens_details
-                            else {}
-                        ),
-                        prompt_tokens_details=(
-                            response.usage.prompt_tokens_details.__dict__
-                            if response.usage.prompt_tokens_details
-                            else {}
-                        ),
+                        completion_tokens_details=response.usage.completion_tokens_details.__dict__ 
+                        if response.usage.completion_tokens_details else {},
+                        prompt_tokens_details=response.usage.prompt_tokens_details.__dict__
+                        if response.usage.prompt_tokens_details else {},
                     )
                     self.usages.append(usage)
                     self.total_usage.completion_tokens += usage.completion_tokens
                     self.total_usage.prompt_tokens += usage.prompt_tokens
                     self.total_usage.total_tokens += usage.total_tokens
 
-                    blocks = extract_xml_data(
-                        ["content"], response.choices[0].message.content
-                    )["content"]
+                    blocks = extract_xml_data(["content"], response.choices[0].message.content)["content"]
                     if blocks:
                         ordered_results.append(blocks)
                         if self.logger:
                             self.logger.success(
-                                "LLM markdown: Successfully processed chunk {chunk_num}",
+                                "Successfully processed chunk {chunk_num}", 
                                 tag="CHUNK",
-                                params={"chunk_num": i + 1},
+                                params={"chunk_num": i + 1}
                             )
                 except Exception as e:
                     if self.logger:
                         self.logger.error(
-                            "LLM markdown: Error processing chunk {chunk_num}: {error}",
+                            "Error processing chunk {chunk_num}: {error}", 
                             tag="CHUNK",
-                            params={"chunk_num": i + 1, "error": str(e)},
+                            params={
+                                "chunk_num": i + 1,
+                                "error": str(e)
+                            }
                         )
 
         end_time = time.time()
         if self.logger:
             self.logger.success(
-                "LLM markdown: Completed processing in {time:.2f}s",
+                "Completed processing in {time:.2f}s", 
                 tag="LLM",
                 params={"time": end_time - start_time},
-                colors={"time": Fore.YELLOW},
+                colors={"time": Fore.YELLOW}
             )
 
         result = ordered_results if ordered_results else []
 
         # Cache the final result
-        cache_data = {"blocks": result, "usage": self.total_usage.__dict__}
-        with cache_file.open("w") as f:
+        cache_data = {
+            'blocks': result,
+            'usage': self.total_usage.__dict__
+        }
+        with cache_file.open('w') as f:
             json.dump(cache_data, f)
             if self.logger:
                 self.logger.info("Cached results for future use", tag="CACHE")
@@ -1050,4 +996,4 @@ class LLMContentFilter(RelevantContentFilter):
                 print(
                     f"{i:<10} {usage.completion_tokens:>12,} "
                     f"{usage.prompt_tokens:>12,} {usage.total_tokens:>12,}"
-                )
+                )

crawl4ai/content_scraping_strategy.py

@@ -529,9 +529,6 @@ class WebScrapingStrategy(ContentScrapingStrategy):
                         if normalized_href not in external_links_dict:
                             external_links_dict[normalized_href] = link_data
                     else:
-                        if kwargs.get("exclude_internal_links", False):
-                            element.decompose()
-                            return False
                         if normalized_href not in internal_links_dict:
                             internal_links_dict[normalized_href] = link_data
 
@@ -632,7 +629,7 @@ class WebScrapingStrategy(ContentScrapingStrategy):
 
             try:
                 self.remove_unwanted_attributes(
-                    element, IMPORTANT_ATTRS + kwargs.get("keep_attrs", []) , kwargs.get("keep_data_attributes", False)
+                    element, IMPORTANT_ATTRS, kwargs.get("keep_data_attributes", False)
                 )
             except Exception as e:
                 # print('Error removing unwanted attributes:', str(e))

crawl4ai/crawlers/amazon_product/crawler.py

@@ -1,20 +0,0 @@
-from crawl4ai.hub import BaseCrawler
-
-__meta__ = {
-    "version": "1.2.0",
-    "tested_on": ["amazon.com"],
-    "rate_limit": "50 RPM",
-    "schema": {"product": ["name", "price"]}
-}
-
-class AmazonProductCrawler(BaseCrawler):
-    async def run(self, url: str, **kwargs) -> str:
-        try:
-            self.logger.info(f"Crawling {url}")
-            return '{"product": {"name": "Test Amazon Product"}}'
-        except Exception as e:
-            self.logger.error(f"Crawl failed: {str(e)}")
-            return json.dumps({
-                "error": str(e),
-                "metadata": self.meta  # Include meta in error response
-            })            

crawl4ai/crawlers/google_search/crawler.py

@@ -1,130 +0,0 @@
-from crawl4ai import BrowserConfig, AsyncWebCrawler, CrawlerRunConfig, CacheMode
-from crawl4ai.hub import BaseCrawler
-from crawl4ai.utils import optimize_html, get_home_folder
-from crawl4ai.extraction_strategy import JsonCssExtractionStrategy
-from pathlib import Path
-import json
-import os
-from typing import Dict
-
-
-class GoogleSearchCrawler(BaseCrawler):
-    __meta__ = {
-        "version": "1.0.0",
-        "tested_on": ["google.com/search*"],
-        "rate_limit": "10 RPM",
-        "description": "Crawls Google Search results (text + images)",
-    }
-
-    def __init__(self):
-        super().__init__()
-        self.js_script = (Path(__file__).parent /
-                          "script.js").read_text()
-
-    async def run(self, url="", query: str = "", search_type: str = "text", schema_cache_path = None, **kwargs) -> str:
-        """Crawl Google Search results for a query"""
-        url = f"https://www.google.com/search?q={query}&gl=sg&hl=en" if search_type == "text" else f"https://www.google.com/search?q={query}&gl=sg&hl=en&tbs=qdr:d&udm=2"
-        if kwargs.get("page_start", 1) > 1:
-            url = f"{url}&start={kwargs['page_start'] * 10}"
-        if kwargs.get("page_length", 1) > 1:
-            url = f"{url}&num={kwargs['page_length']}"
-            
-        browser_config = BrowserConfig(headless=True, verbose=True)
-        async with AsyncWebCrawler(config=browser_config) as crawler:
-            config = CrawlerRunConfig(
-                cache_mode=kwargs.get("cache_mode", CacheMode.BYPASS),
-                keep_attrs=["id", "class"],
-                keep_data_attributes=True,
-                delay_before_return_html=kwargs.get(
-                    "delay", 2 if search_type == "image" else 1),
-                js_code=self.js_script if search_type == "image" else None,
-            )
-
-            result = await crawler.arun(url=url, config=config)
-            if not result.success:
-                return json.dumps({"error": result.error})
-
-            if search_type == "image":
-                if result.js_execution_result.get("success", False) is False:
-                    return json.dumps({"error": result.js_execution_result.get("error", "Unknown error")})
-                if "results" in result.js_execution_result:
-                    image_result = result.js_execution_result['results'][0]
-                    if image_result.get("success", False) is False:
-                        return json.dumps({"error": image_result.get("error", "Unknown error")})
-                    return json.dumps(image_result["result"], indent=4)
-
-            # For text search, extract structured data
-            schemas = await self._build_schemas(result.cleaned_html, schema_cache_path)
-            extracted = {
-                key: JsonCssExtractionStrategy(schema=schemas[key]).run(
-                    url=url, sections=[result.html]
-                )
-                for key in schemas
-            }
-            return json.dumps(extracted, indent=4)
-
-    async def _build_schemas(self, html: str, schema_cache_path: str = None) -> Dict[str, Dict]:
-        """Build extraction schemas (organic, top stories, etc.)"""
-        home_dir = get_home_folder() if not schema_cache_path else schema_cache_path
-        os.makedirs(f"{home_dir}/schema", exist_ok=True)
-
-        cleaned_html = optimize_html(html, threshold=100)
-
-        organic_schema = None
-        if os.path.exists(f"{home_dir}/schema/organic_schema.json"):
-            with open(f"{home_dir}/schema/organic_schema.json", "r") as f:
-                organic_schema = json.load(f)
-        else:
-            organic_schema = JsonCssExtractionStrategy.generate_schema(
-                html=cleaned_html,
-                target_json_example="""{
-            "title": "...",
-            "link": "...",
-            "snippet": "...",
-            "date": "1 hour ago",
-        }""",
-                query="""The given html is the crawled html from Google search result. Please find the schema for organic search item in the given html, I am interested in title, link, snippet text. date."""
-            )
-
-            with open(f"{home_dir}/schema/organic_schema.json", "w") as f:
-                f.write(json.dumps(organic_schema))
-
-        top_stories_schema = None
-        if os.path.exists(f"{home_dir}/schema/top_stories_schema.json"):
-            with open(f"{home_dir}/schema/top_stories_schema.json", "r") as f:
-                top_stories_schema = json.load(f)
-        else:
-            top_stories_schema = JsonCssExtractionStrategy.generate_schema(
-                html=cleaned_html,
-                target_json_example="""{
-            "title": "...",
-            "link": "...",
-            "source": "Insider Monkey",
-            "date": "1 hour ago",
-        }""",
-                query="""The given html is the crawled html from Google search result. Please find the schema for Top Story item int he given html, I am interested in title, link, source. date and imageUrl."""
-            )
-
-            with open(f"{home_dir}/schema/top_stories_schema.json", "w") as f:
-                f.write(json.dumps(top_stories_schema))
-
-        suggested_query_schema = None
-        if os.path.exists(f"{home_dir}/schema/suggested_query_schema.json"):
-            with open(f"{home_dir}/schema/suggested_query_schema.json", "r") as f:
-                suggested_query_schema = json.load(f)
-        else:
-            suggested_query_schema = JsonCssExtractionStrategy.generate_schema(
-                html=cleaned_html,
-                target_json_example="""{
-            "query": "A for Apple",
-        }""",
-                query="""The given HTML contains the crawled HTML from Google search results. Please find the schema for each suggested query in the section "People also search for" within the given HTML. I am interested in the queries only."""
-            )
-            with open(f"{home_dir}/schema/suggested_query_schema.json", "w") as f:
-                f.write(json.dumps(suggested_query_schema))
-
-        return {
-            "organic_schema": organic_schema,
-            "top_stories_schema": top_stories_schema,
-            "suggested_query_schema": suggested_query_schema,
-        }

crawl4ai/crawlers/google_search/script.js

@@ -1,115 +0,0 @@
-(() => {
-    // Function to extract image data from Google Images page
-    function extractImageData() {
-        const keys = Object.keys(window.W_jd);
-        let allImageData = [];
-        let currentPosition = 0;
-
-        // Get the symbol we'll use (from first valid entry)
-        let targetSymbol;
-        for (let key of keys) {
-            try {
-                const symbols = Object.getOwnPropertySymbols(window.W_jd[key]);
-                if (symbols.length > 0) {
-                    targetSymbol = symbols[0];
-                    break;
-                }
-            } catch (e) {
-                continue;
-            }
-        }
-
-        if (!targetSymbol) return [];
-
-        // Iterate through ALL keys
-        for (let key of keys) {
-            try {
-                const o1 = window.W_jd[key][targetSymbol]
-                if (!o1) continue;
-                const data = Object.values(o1)[0]
-                // const data = window.W_jd[key][targetSymbol]?.Ws;
-                // Check if this is a valid image data entry
-                if (data && Array.isArray(data[1])) {
-                    const processedData = processImageEntry(data, currentPosition);
-                    if (processedData) {
-                        allImageData.push(processedData);
-                        currentPosition++;
-                    }
-                }
-            } catch (e) {
-                continue;
-            }
-        }
-
-        return allImageData;
-    }
-
-    function processImageEntry(entry, position) {
-        const imageData = entry[1];
-        if (!Array.isArray(imageData)) return null;
-
-        // Extract the image ID
-        const imageId = imageData[1];
-        if (!imageId) return null;
-
-        // Find the corresponding DOM element
-        const domElement = document.querySelector(`[data-docid="${imageId}"]`);
-        if (!domElement) return null;
-
-        // Extract data from the array structure
-        const [
-            _,
-            id,
-            thumbnailInfo,
-            imageInfo,
-            __,
-            ___,
-            rgb,
-            ____,
-            _____,
-            metadata
-        ] = imageData;
-
-        // Ensure we have the required data
-        if (!thumbnailInfo || !imageInfo) return null;
-
-        // Extract metadata from DOM
-        const title = domElement?.querySelector('.toI8Rb')?.textContent?.trim();
-        const source = domElement?.querySelector('.guK3rf')?.textContent?.trim();
-        const link = domElement?.querySelector('a.EZAeBe')?.href;
-
-        if (!link) return null;
-
-        // Build Google Image URL
-        const googleUrl = buildGoogleImageUrl(imageInfo[0], link, imageId, imageInfo[1], imageInfo[2]);
-
-        return {
-            title,
-            imageUrl: imageInfo[0],
-            imageWidth: imageInfo[2],
-            imageHeight: imageInfo[1],
-            thumbnailUrl: thumbnailInfo[0],
-            thumbnailWidth: thumbnailInfo[2],
-            thumbnailHeight: thumbnailInfo[1],
-            source,
-            domain: metadata['2000']?.[1] || new URL(link).hostname,
-            link,
-            googleUrl,
-            position: position + 1
-        };
-    }
-
-    function buildGoogleImageUrl(imgUrl, refUrl, tbnid, height, width) {
-        const params = new URLSearchParams({
-            imgurl: imgUrl,
-            tbnid: tbnid,
-            imgrefurl: refUrl,
-            docid: tbnid,
-            w: width.toString(),
-            h: height.toString(),
-        });
-
-        return `https://www.google.com/imgres?${params.toString()}`;
-    }
-    return extractImageData();
-})();

crawl4ai/deep_crawl/__init__.py

@@ -0,0 +1,29 @@
+from .bfs_deep_crawl_strategy import BFSDeepCrawlStrategy
+from .filters import (
+    URLFilter,
+    FilterChain,
+    URLPatternFilter,
+    ContentTypeFilter,
+    DomainFilter,
+)
+from .scorers import (
+    KeywordRelevanceScorer,
+    PathDepthScorer,
+    FreshnessScorer,
+    CompositeScorer,
+)
+from .deep_crawl_strategty import DeepCrawlStrategy
+
+__all__ = [
+    "BFSDeepCrawlStrategy",
+    "FilterChain",
+    "URLFilter",
+    "URLPatternFilter",
+    "ContentTypeFilter",
+    "DomainFilter",
+    "KeywordRelevanceScorer",
+    "PathDepthScorer",
+    "FreshnessScorer",
+    "CompositeScorer",
+    "DeepCrawlStrategy",
+]

crawl4ai/deep_crawl/bfs_deep_crawl_strategy.py

@@ -0,0 +1,193 @@
+from typing import AsyncGenerator, Optional, Dict, Set, List
+from datetime import datetime
+import asyncio
+import logging
+from urllib.parse import urlparse
+from ..models import CrawlResult, TraversalStats
+from .filters import FilterChain
+from .scorers import URLScorer
+from .deep_crawl_strategty import DeepCrawlStrategy
+from ..config import DEEP_CRAWL_BATCH_SIZE
+
+
+class BFSDeepCrawlStrategy(DeepCrawlStrategy):
+    """Best-First Search traversal strategy with filtering and scoring."""
+
+    def __init__(
+        self,
+        max_depth: int,
+        filter_chain: FilterChain,
+        url_scorer: URLScorer,
+        process_external_links: bool = False,
+        logger: Optional[logging.Logger] = None,
+    ):
+        self.max_depth = max_depth
+        self.filter_chain = filter_chain
+        self.url_scorer = url_scorer
+        self.logger = logger or logging.getLogger(__name__)
+
+        # Crawl control
+        self.stats = TraversalStats(start_time=datetime.now())
+        self._cancel_event = asyncio.Event()
+        self.process_external_links = process_external_links
+
+    async def can_process_url(self, url: str, depth: int) -> bool:
+        """Check if URL can be processed based on filters
+        This is our gatekeeper method that determines if a URL should be processed. It:
+            - Validates URL format using a robust built-in method
+            - Applies custom filters from the filter chain
+            - Updates statistics for blocked URLs
+            - Returns False early if any check fails
+        """
+        try:
+            result = urlparse(url)
+            if not all([result.scheme, result.netloc]):
+                raise ValueError("Invalid URL")
+            if result.scheme not in ("http", "https"):
+                raise ValueError("URL must be HTTP or HTTPS")
+            if not result.netloc or "." not in result.netloc:
+                raise ValueError("Invalid domain")
+        except Exception as e:
+            self.logger.warning(f"Invalid URL: {url}. Error: {str(e)}")
+            return False
+
+        # Apply the filter chain if it's not start page
+        if depth != 0 and not self.filter_chain.apply(url):
+            return False
+
+        return True
+
+    async def _process_links(
+        self,
+        result: CrawlResult,
+        source_url: str,
+        queue: asyncio.PriorityQueue,
+        visited: Set[str],
+        depths: Dict[str, int],
+    ) -> List[str]:
+        """Process extracted links from crawl result.
+        This is our link processor that:
+            Checks depth limits
+            Handles both internal and external links
+            Checks if URL is visited already
+            Checks if URL can be processed - validates URL, applies Filters with can_process_url
+            Scores URLs for priority
+            Updates depth tracking dictionary
+            Adds valid URLs to the queue
+            Updates maximum depth statistics
+        """
+        next_depth = depths[source_url] + 1
+        # If depth limit reached, exit without processing links
+        if next_depth > self.max_depth:
+            return
+        links_to_process = result.links["internal"]
+        if self.process_external_links:
+            links_to_process += result.links["external"]
+        for link in links_to_process:
+            url = link["href"]
+            if url in visited:
+                continue
+            if not await self.can_process_url(url, next_depth):
+                self.stats.urls_skipped += 1
+                continue
+            score = self.url_scorer.score(url) if self.url_scorer else 0
+            await queue.put((score, next_depth, url, source_url))
+            depths[url] = next_depth
+            self.stats.total_depth_reached = max(
+                self.stats.total_depth_reached, next_depth
+            )
+
+    async def arun(
+        self,
+        start_url: str,
+        crawler: "AsyncWebCrawler",
+        crawler_run_config: Optional["CrawlerRunConfig"] = None,
+    ) -> AsyncGenerator[CrawlResult, None]:
+        """Implement BFS traversal strategy"""
+
+        # Initialize traversal state
+        """
+        queue: A priority queue where items are tuples of (score, depth, url)
+            Score: Determines traversal priority (lower = higher priority)
+            Depth: Current distance from start_url
+            URL: The actual URL to crawl
+            visited: Keeps track of URLs we've already seen to avoid cycles
+            depths: Maps URLs to their depths from the start URL
+            active_crawls: Tracks currently running crawl tasks        
+        """
+        queue = asyncio.PriorityQueue()
+        await queue.put((0, 0, start_url, None))
+        visited: Set[str] = set()
+        depths = {start_url: 0}
+        active_crawls = {}  # Track URLs currently being processed with depth and score
+        active_crawls_lock = (
+            asyncio.Lock()
+        )  # Create the lock within the same event loop
+        try:
+            while (
+                not queue.empty() or active_crawls
+            ) and not self._cancel_event.is_set():
+                """
+                This sets up our main control loop which:
+                    - Continues while there are URLs to process (not queue.empty())
+                    - Or while there are active crawls still running (arun_many)
+                    - Can be interrupted via cancellation (not self._cancel_event.is_set())
+                """
+                # Collect batch of URLs into active_crawls to process
+                async with active_crawls_lock:
+                    while (
+                        len(active_crawls) < DEEP_CRAWL_BATCH_SIZE and not queue.empty()
+                    ):
+                        score, depth, url, parent_url = await queue.get()
+                        active_crawls[url] = {
+                            "depth": depth,
+                            "score": score,
+                            "parent_url": parent_url,
+                        }
+                        self.stats.current_depth = depth
+
+                if not active_crawls:
+                    # If no active crawls exist, wait a bit and continue
+                    await asyncio.sleep(0.1)
+                    continue
+                # Process batch
+                try:
+                    # This is very important to ensure recursively you don't deep_crawl down the children.
+                    if crawler_run_config:
+                        crawler_run_config = crawler_run_config.clone(
+                            deep_crawl_strategy=None, stream=True
+                        )
+                    async for result in await crawler.arun_many(
+                        urls=list(active_crawls.keys()),
+                        config=crawler_run_config
+                    ):
+                        async with active_crawls_lock:
+                            crawl_info = active_crawls.pop(result.url, None)
+
+                        if crawl_info and result.success:
+                            await self._process_links(
+                                result, result.url, queue, visited, depths
+                            )
+                            result.depth = crawl_info["depth"]
+                            result.score = crawl_info["score"]
+                            result.parent_url = crawl_info["parent_url"]
+                            yield result
+                        else:
+                            self.logger.warning(
+                                f"Failed to crawl {result.url}: {result.error_message}"
+                            )
+                except Exception as e:
+                    self.logger.error(f"Batch processing error: {e}")
+                    # Continue processing other batches
+                    continue
+
+        except Exception as e:
+            self.logger.error(f"Error in crawl process: {e}")
+            raise
+
+        finally:
+            self.stats.end_time = datetime.now()
+
+    async def shutdown(self):
+        """Clean up resources and stop crawling"""
+        self._cancel_event.set()

crawl4ai/deep_crawl/deep_crawl_strategty.py

@@ -0,0 +1,30 @@
+from abc import ABC, abstractmethod
+from typing import AsyncGenerator, Optional
+
+from ..models import CrawlResult
+
+
+class DeepCrawlStrategy(ABC):
+    @abstractmethod
+    async def arun(
+        self,
+        url: str,
+        crawler: "AsyncWebCrawler",
+        crawler_run_config: Optional["CrawlerRunConfig"] = None,
+    ) -> AsyncGenerator[CrawlResult, None]:
+        """Traverse the given URL using the specified crawler.
+
+        Args:
+            url (str): The starting URL for the traversal.
+            crawler (AsyncWebCrawler): The crawler instance to use for traversal.
+            crawler_run_config (CrawlerRunConfig, optional): The configuration for the crawler.
+
+        Returns:
+            AsyncGenerator[CrawlResult, None]: An async generator yielding crawl results.
+        """
+        pass
+
+    @abstractmethod
+    async def shutdown(self):
+        """Clean up resources used by the strategy"""
+        pass

crawl4ai/deep_crawl/filters.py

@@ -0,0 +1,868 @@
+from abc import ABC, abstractmethod
+from typing import List, Pattern, Set, Union, FrozenSet
+import re, time
+from urllib.parse import urlparse
+from array import array
+import logging
+from functools import lru_cache
+import fnmatch
+from dataclasses import dataclass
+from typing import ClassVar
+import weakref
+import mimetypes
+
+
+@dataclass
+class FilterStats:
+    # PERF: Using dataclass creates overhead with __init__ and property access
+    # PERF: Could use __slots__ to reduce memory footprint
+    # PERF: Consider using array.array('I') for atomic increments
+    total_urls: int = 0
+    rejected_urls: int = 0
+    passed_urls: int = 0
+
+
+class URLFilter(ABC):
+    # PERF: Logger creation is expensive, consider lazy initialization
+    # PERF: stats object creation adds overhead for each filter instance
+    def __init__(self, name: str = None):
+        self.name = name or self.__class__.__name__
+        self.stats = FilterStats()
+        self.logger = logging.getLogger(f"urlfilter.{self.name}")
+
+    @abstractmethod
+    def apply(self, url: str) -> bool:
+        pass
+
+    def _update_stats(self, passed: bool):
+        # PERF: Already optimized but could use bitwise operations
+        # PERF: Consider removing stats entirely in production/fast mode
+        self.stats.total_urls += 1
+        self.stats.passed_urls += passed
+        self.stats.rejected_urls += not passed
+
+
+class FilterChain:
+    # PERF: List traversal for each URL is expensive
+    # PERF: Could use array.array instead of list for filters
+    # PERF: Consider adding fast path for single filter case
+    def __init__(self, filters: List[URLFilter] = None):
+        self.filters = filters or []
+        self.stats = FilterStats()
+        self.logger = logging.getLogger("urlfilter.chain")
+
+    def apply(self, url: str) -> bool:
+        # PERF: Logging on every rejection is expensive
+        # PERF: Could reorder filters by rejection rate
+        # PERF: Consider batch processing mode
+        self.stats.total_urls += 1
+
+        for filter_ in self.filters:
+            if not filter_.apply(url):
+                self.stats.rejected_urls += 1
+                self.logger.debug(f"URL {url} rejected by {filter_.name}")
+                return False
+
+        self.stats.passed_urls += 1
+        return True
+
+
+class URLPatternFilter(URLFilter):
+    # PERF: Converting glob to regex is expensive
+    # PERF: Multiple regex compilation is slow
+    # PERF: List of patterns causes multiple regex evaluations
+    def __init__(
+        self,
+        patterns: Union[str, Pattern, List[Union[str, Pattern]]],
+        use_glob: bool = True,
+    ):
+        super().__init__()
+        self.patterns = [patterns] if isinstance(patterns, (str, Pattern)) else patterns
+        self.use_glob = use_glob
+        self._compiled_patterns = []
+
+        # PERF: This could be consolidated into a single regex with OR conditions
+        # PERF: glob_to_regex creates complex patterns, could be simplified
+        for pattern in self.patterns:
+            if isinstance(pattern, str) and use_glob:
+                self._compiled_patterns.append(self._glob_to_regex(pattern))
+            else:
+                self._compiled_patterns.append(
+                    re.compile(pattern) if isinstance(pattern, str) else pattern
+                )
+
+    def _glob_to_regex(self, pattern: str) -> Pattern:
+        # PERF: fnmatch.translate creates overly complex patterns
+        # PERF: Could cache common translations
+        return re.compile(fnmatch.translate(pattern))
+
+    def apply(self, url: str) -> bool:
+        # PERF: any() with generator is slower than direct loop with early return
+        # PERF: searching entire string is slower than anchored match
+        matches = any(pattern.search(url) for pattern in self._compiled_patterns)
+        self._update_stats(matches)
+        return matches
+
+
+class ContentTypeFilter(URLFilter):
+    # PERF: mimetypes guessing is extremely slow
+    # PERF: URL parsing on every check is expensive
+    # PERF: No caching of results for similar extensions
+    def __init__(
+        self, allowed_types: Union[str, List[str]], check_extension: bool = True
+    ):
+        super().__init__()
+        self.allowed_types = (
+            [allowed_types] if isinstance(allowed_types, str) else allowed_types
+        )
+        self.check_extension = check_extension
+        self._normalize_types()
+
+    def _normalize_types(self):
+        """Normalize content type strings"""
+        self.allowed_types = [t.lower() for t in self.allowed_types]
+
+    def _check_extension(self, url: str) -> bool:
+        # PERF: urlparse is called on every check
+        # PERF: multiple string splits are expensive
+        # PERF: mimetypes.guess_type is very slow
+        ext = (
+            urlparse(url).path.split(".")[-1].lower()
+            if "." in urlparse(url).path
+            else ""
+        )
+        if not ext:
+            return True
+
+        # PERF: guess_type is main bottleneck
+        guessed_type = mimetypes.guess_type(url)[0]
+        return any(
+            allowed in (guessed_type or "").lower() for allowed in self.allowed_types
+        )
+
+    def apply(self, url: str) -> bool:
+        """Check if URL's content type is allowed"""
+        result = True
+        if self.check_extension:
+            result = self._check_extension(url)
+        self._update_stats(result)
+        return result
+
+
+class DomainFilter(URLFilter):
+    # PERF: Set lookups are fast but string normalizations on init are not
+    # PERF: Creating two sets doubles memory usage
+    def __init__(
+        self,
+        allowed_domains: Union[str, List[str]] = None,
+        blocked_domains: Union[str, List[str]] = None,
+    ):
+        super().__init__()
+        # PERF: Normalizing domains on every init is wasteful
+        # PERF: Could use frozenset for immutable lists
+        self.allowed_domains = (
+            set(self._normalize_domains(allowed_domains)) if allowed_domains else None
+        )
+        self.blocked_domains = (
+            set(self._normalize_domains(blocked_domains)) if blocked_domains else set()
+        )
+
+    def _normalize_domains(self, domains: Union[str, List[str]]) -> List[str]:
+        # PERF: strip() and lower() create new strings for each domain
+        # PERF: List comprehension creates intermediate list
+        if isinstance(domains, str):
+            domains = [domains]
+        return [d.lower().strip() for d in domains]
+
+    def _extract_domain(self, url: str) -> str:
+        # PERF: urlparse is called for every URL check
+        # PERF: lower() creates new string every time
+        # PERF: Could cache recent results
+        return urlparse(url).netloc.lower()
+
+    def apply(self, url: str) -> bool:
+        # PERF: Two separate set lookups in worst case
+        # PERF: Domain extraction happens before knowing if we have any filters
+        domain = self._extract_domain(url)
+
+        if domain in self.blocked_domains:
+            self._update_stats(False)
+            return False
+
+        if self.allowed_domains is not None and domain not in self.allowed_domains:
+            self._update_stats(False)
+            return False
+
+        self._update_stats(True)
+        return True
+
+
+# Example usage:
+def create_common_filter_chain() -> FilterChain:
+    """Create a commonly used filter chain"""
+    return FilterChain(
+        [
+            URLPatternFilter(
+                [
+                    "*.html",
+                    "*.htm",  # HTML files
+                    "*/article/*",
+                    "*/blog/*",  # Common content paths
+                ]
+            ),
+            ContentTypeFilter(["text/html", "application/xhtml+xml"]),
+            DomainFilter(blocked_domains=["ads.*", "analytics.*"]),
+        ]
+    )
+
+
+####################################################################################
+# Uncledoe: Optimized Version
+####################################################################################
+
+
+# Use __slots__ and array for maximum memory/speed efficiency
+class FastFilterStats:
+    __slots__ = ("_counters",)
+
+    def __init__(self):
+        # Use array of unsigned ints for atomic operations
+        self._counters = array("I", [0, 0, 0])  # total, passed, rejected
+
+    @property
+    def total_urls(self):
+        return self._counters[0]
+
+    @property
+    def passed_urls(self):
+        return self._counters[1]
+
+    @property
+    def rejected_urls(self):
+        return self._counters[2]
+
+
+class FastURLFilter(ABC):
+    """Optimized base filter class"""
+
+    __slots__ = ("name", "stats", "_logger_ref")
+
+    def __init__(self, name: str = None):
+        self.name = name or self.__class__.__name__
+        self.stats = FastFilterStats()
+        # Lazy logger initialization using weakref
+        self._logger_ref = None
+
+    @property
+    def logger(self):
+        if self._logger_ref is None or self._logger_ref() is None:
+            logger = logging.getLogger(f"urlfilter.{self.name}")
+            self._logger_ref = weakref.ref(logger)
+        return self._logger_ref()
+
+    @abstractmethod
+    def apply(self, url: str) -> bool:
+        pass
+
+    def _update_stats(self, passed: bool):
+        # Use direct array index for speed
+        self.stats._counters[0] += 1  # total
+        self.stats._counters[1] += passed  # passed
+        self.stats._counters[2] += not passed  # rejected
+
+
+class FastFilterChain:
+    """Optimized filter chain"""
+
+    __slots__ = ("filters", "stats", "_logger_ref")
+
+    def __init__(self, filters: List[FastURLFilter] = None):
+        self.filters = tuple(filters or [])  # Immutable tuple for speed
+        self.stats = FastFilterStats()
+        self._logger_ref = None
+
+    @property
+    def logger(self):
+        if self._logger_ref is None or self._logger_ref() is None:
+            logger = logging.getLogger("urlfilter.chain")
+            self._logger_ref = weakref.ref(logger)
+        return self._logger_ref()
+
+    def add_filter(self, filter_: FastURLFilter) -> "FastFilterChain":
+        """Add a filter to the chain"""
+        self.filters.append(filter_)
+        return self  # Enable method chaining
+
+    def apply(self, url: str) -> bool:
+        """Optimized apply with minimal operations"""
+        self.stats._counters[0] += 1  # total
+
+        # Direct tuple iteration is faster than list
+        for f in self.filters:
+            if not f.apply(url):
+                self.stats._counters[2] += 1  # rejected
+                return False
+
+        self.stats._counters[1] += 1  # passed
+        return True
+
+class FastURLPatternFilter(FastURLFilter):
+    """Pattern filter balancing speed and completeness"""
+    __slots__ = ('_simple_suffixes', '_simple_prefixes', '_domain_patterns', '_path_patterns')
+    
+    PATTERN_TYPES = {
+        'SUFFIX': 1,    # *.html
+        'PREFIX': 2,    # /foo/*
+        'DOMAIN': 3,    # *.example.com
+        'PATH': 4 ,      # Everything else
+        'REGEX': 5 
+    }
+    
+    def __init__(self, patterns: Union[str, Pattern, List[Union[str, Pattern]]], use_glob: bool = True):
+        super().__init__()
+        patterns = [patterns] if isinstance(patterns, (str, Pattern)) else patterns
+        
+        self._simple_suffixes = set()
+        self._simple_prefixes = set()
+        self._domain_patterns = []
+        self._path_patterns = []
+        
+        for pattern in patterns:
+            pattern_type = self._categorize_pattern(pattern)
+            self._add_pattern(pattern, pattern_type)
+    
+    def _categorize_pattern(self, pattern: str) -> int:
+        """Categorize pattern for specialized handling"""
+        if not isinstance(pattern, str):
+            return self.PATTERN_TYPES['PATH']
+            
+        # Check if it's a regex pattern
+        if pattern.startswith('^') or pattern.endswith('$') or '\\d' in pattern:
+            return self.PATTERN_TYPES['REGEX']
+        
+        if pattern.count('*') == 1:
+            if pattern.startswith('*.'):
+                return self.PATTERN_TYPES['SUFFIX']
+            if pattern.endswith('/*'):
+                return self.PATTERN_TYPES['PREFIX']
+                
+        if '://' in pattern and pattern.startswith('*.'):
+            return self.PATTERN_TYPES['DOMAIN']
+            
+        return self.PATTERN_TYPES['PATH']
+    
+    def _add_pattern(self, pattern: str, pattern_type: int):
+        """Add pattern to appropriate matcher"""
+        if pattern_type == self.PATTERN_TYPES['REGEX']:
+            # For regex patterns, compile directly without glob translation
+            if isinstance(pattern, str) and (pattern.startswith('^') or pattern.endswith('$') or '\\d' in pattern):
+                self._path_patterns.append(re.compile(pattern))
+                return
+        elif pattern_type == self.PATTERN_TYPES['SUFFIX']:
+            self._simple_suffixes.add(pattern[2:])
+        elif pattern_type == self.PATTERN_TYPES['PREFIX']:
+            self._simple_prefixes.add(pattern[:-2])
+        elif pattern_type == self.PATTERN_TYPES['DOMAIN']:
+            self._domain_patterns.append(
+                re.compile(pattern.replace('*.', r'[^/]+\.'))
+            )
+        else:
+            if isinstance(pattern, str):
+                # Handle complex glob patterns
+                if '**' in pattern:
+                    pattern = pattern.replace('**', '.*')
+                if '{' in pattern:
+                    # Convert {a,b} to (a|b)
+                    pattern = re.sub(r'\{([^}]+)\}', 
+                                   lambda m: f'({"|".join(m.group(1).split(","))})',
+                                   pattern)
+                pattern = fnmatch.translate(pattern)
+            self._path_patterns.append(
+                pattern if isinstance(pattern, Pattern) else re.compile(pattern)
+            )
+
+    @lru_cache(maxsize=10000)
+    def apply(self, url: str) -> bool:
+        """Hierarchical pattern matching"""
+        # Quick suffix check (*.html)
+        if self._simple_suffixes:
+            path = url.split('?')[0]
+            if path.split('/')[-1].split('.')[-1] in self._simple_suffixes:
+                self._update_stats(True)
+                return True
+                
+        # Domain check
+        if self._domain_patterns:
+            for pattern in self._domain_patterns:
+                if pattern.match(url):
+                    self._update_stats(True)
+                    return True
+        
+        # Prefix check (/foo/*)
+        if self._simple_prefixes:
+            path = url.split('?')[0]
+            if any(path.startswith(p) for p in self._simple_prefixes):
+                self._update_stats(True)
+                return True
+                
+        # Complex patterns
+        if self._path_patterns:
+            if any(p.search(url) for p in self._path_patterns):
+                self._update_stats(True)
+                return True
+        
+        self._update_stats(False)
+        return False
+
+
+class FastContentTypeFilter(FastURLFilter):
+    """Optimized content type filter using fast lookups"""
+
+    __slots__ = ("allowed_types", "_ext_map", "_check_extension")
+
+    # Fast extension to mime type mapping
+    _MIME_MAP = {
+        # Text Formats
+        "txt": "text/plain",
+        "html": "text/html",
+        "htm": "text/html",
+        "xhtml": "application/xhtml+xml",
+        "css": "text/css",
+        "csv": "text/csv",
+        "ics": "text/calendar",
+        "js": "application/javascript",
+        # Images
+        "bmp": "image/bmp",
+        "gif": "image/gif",
+        "jpeg": "image/jpeg",
+        "jpg": "image/jpeg",
+        "png": "image/png",
+        "svg": "image/svg+xml",
+        "tiff": "image/tiff",
+        "ico": "image/x-icon",
+        "webp": "image/webp",
+        # Audio
+        "mp3": "audio/mpeg",
+        "wav": "audio/wav",
+        "ogg": "audio/ogg",
+        "m4a": "audio/mp4",
+        "aac": "audio/aac",
+        # Video
+        "mp4": "video/mp4",
+        "mpeg": "video/mpeg",
+        "webm": "video/webm",
+        "avi": "video/x-msvideo",
+        "mov": "video/quicktime",
+        "flv": "video/x-flv",
+        "wmv": "video/x-ms-wmv",
+        "mkv": "video/x-matroska",
+        # Applications
+        "json": "application/json",
+        "xml": "application/xml",
+        "pdf": "application/pdf",
+        "zip": "application/zip",
+        "gz": "application/gzip",
+        "tar": "application/x-tar",
+        "rar": "application/vnd.rar",
+        "7z": "application/x-7z-compressed",
+        "exe": "application/vnd.microsoft.portable-executable",
+        "msi": "application/x-msdownload",
+        # Fonts
+        "woff": "font/woff",
+        "woff2": "font/woff2",
+        "ttf": "font/ttf",
+        "otf": "font/otf",
+        # Microsoft Office
+        "doc": "application/msword",
+        "dot": "application/msword",
+        "docx": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+        "xlsx": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+        "xls": "application/vnd.ms-excel",
+        "ppt": "application/vnd.ms-powerpoint",
+        "pptx": "application/vnd.openxmlformats-officedocument.presentationml.presentation",
+        # OpenDocument Formats
+        "odt": "application/vnd.oasis.opendocument.text",
+        "ods": "application/vnd.oasis.opendocument.spreadsheet",
+        "odp": "application/vnd.oasis.opendocument.presentation",
+        # Archives
+        "tar.gz": "application/gzip",
+        "tgz": "application/gzip",
+        "bz2": "application/x-bzip2",
+        # Others
+        "rtf": "application/rtf",
+        "apk": "application/vnd.android.package-archive",
+        "epub": "application/epub+zip",
+        "jar": "application/java-archive",
+        "swf": "application/x-shockwave-flash",
+        "midi": "audio/midi",
+        "mid": "audio/midi",
+        "ps": "application/postscript",
+        "ai": "application/postscript",
+        "eps": "application/postscript",
+        # Custom or less common
+        "bin": "application/octet-stream",
+        "dmg": "application/x-apple-diskimage",
+        "iso": "application/x-iso9660-image",
+        "deb": "application/x-debian-package",
+        "rpm": "application/x-rpm",
+        "sqlite": "application/vnd.sqlite3",
+        # Placeholder
+        "unknown": "application/octet-stream",  # Fallback for unknown file types
+    }
+
+    @staticmethod
+    @lru_cache(maxsize=1000)
+    def _extract_extension(path: str) -> str:
+        """Fast extension extraction with caching"""
+        if "." not in path:
+            return ""
+        return path.rpartition(".")[-1].lower()
+
+    def __init__(
+        self, allowed_types: Union[str, List[str]], check_extension: bool = True
+    ):
+        super().__init__()
+        # Normalize and store as frozenset for fast lookup
+        self.allowed_types = frozenset(
+            t.lower()
+            for t in (
+                allowed_types if isinstance(allowed_types, list) else [allowed_types]
+            )
+        )
+        self._check_extension = check_extension
+
+        # Pre-compute extension map for allowed types
+        self._ext_map = frozenset(
+            ext
+            for ext, mime in self._MIME_MAP.items()
+            if any(allowed in mime for allowed in self.allowed_types)
+        )
+
+    @lru_cache(maxsize=1000)
+    def _check_url_cached(self, url: str) -> bool:
+        """Cached URL checking"""
+        if not self._check_extension:
+            return True
+
+        path = url.split("?")[0]  # Fast path split
+        ext = self._extract_extension(path)
+        if not ext:
+            return True
+
+        return ext in self._ext_map
+
+    def apply(self, url: str) -> bool:
+        """Fast extension check with caching"""
+        result = self._check_url_cached(url)
+        self._update_stats(result)
+        return result
+
+
+class FastDomainFilter(FastURLFilter):
+    """Optimized domain filter with fast lookups and caching"""
+
+    __slots__ = ("_allowed_domains", "_blocked_domains", "_domain_cache")
+
+    # Regex for fast domain extraction
+    _DOMAIN_REGEX = re.compile(r"://([^/]+)")
+
+    def __init__(
+        self,
+        allowed_domains: Union[str, List[str]] = None,
+        blocked_domains: Union[str, List[str]] = None,
+    ):
+        super().__init__()
+
+        # Convert inputs to frozensets for immutable, fast lookups
+        self._allowed_domains = (
+            frozenset(self._normalize_domains(allowed_domains))
+            if allowed_domains
+            else None
+        )
+        self._blocked_domains = (
+            frozenset(self._normalize_domains(blocked_domains))
+            if blocked_domains
+            else frozenset()
+        )
+
+    @staticmethod
+    def _normalize_domains(domains: Union[str, List[str]]) -> Set[str]:
+        """Fast domain normalization"""
+        if isinstance(domains, str):
+            return {domains.lower()}
+        return {d.lower() for d in domains}
+
+    @staticmethod
+    @lru_cache(maxsize=10000)
+    def _extract_domain(url: str) -> str:
+        """Ultra-fast domain extraction with regex and caching"""
+        match = FastDomainFilter._DOMAIN_REGEX.search(url)
+        return match.group(1).lower() if match else ""
+
+    def apply(self, url: str) -> bool:
+        """Optimized domain checking with early returns"""
+        # Skip processing if no filters
+        if not self._blocked_domains and self._allowed_domains is None:
+            self._update_stats(True)
+            return True
+
+        domain = self._extract_domain(url)
+
+        # Early return for blocked domains
+        if domain in self._blocked_domains:
+            self._update_stats(False)
+            return False
+
+        # If no allowed domains specified, accept all non-blocked
+        if self._allowed_domains is None:
+            self._update_stats(True)
+            return True
+
+        # Final allowed domains check
+        result = domain in self._allowed_domains
+        self._update_stats(result)
+        return result
+
+
+def create_fast_filter_chain() -> FastFilterChain:
+    """Create an optimized filter chain with filters ordered by rejection rate"""
+    return FastFilterChain(
+        [
+            # Domain filter first (fastest rejection)
+            FastDomainFilter(blocked_domains=["ads.*", "analytics.*"]),
+            # Content filter second (medium speed)
+            FastContentTypeFilter(["text/html", "application/xhtml+xml"]),
+            # Pattern filter last (most expensive)
+            FastURLPatternFilter(
+                [
+                    "*.html",
+                    "*.htm",
+                    "*/article/*",
+                    "*/blog/*",
+                ]
+            ),
+        ]
+    )
+
+
+def run_performance_test():
+    import time
+    import random
+    from itertools import cycle
+
+    # Generate test URLs
+    base_urls = [
+        "https://example.com/article/123",
+        "https://blog.example.com/post/456",
+        "https://ads.example.com/tracking",
+        "https://example.com/about.html",
+        "https://analytics.example.com/script.js",
+        "https://example.com/products.php",
+        "https://subdomain.example.com/blog/post-123",
+        "https://example.com/path/file.pdf",
+    ]
+
+    # Create more varied test data
+    test_urls = []
+    for base in base_urls:
+        # Add original
+        test_urls.append(base)
+        # Add variations
+        parts = base.split("/")
+        for i in range(10):
+            parts[-1] = f"page_{i}.html"
+            test_urls.append("/".join(parts))
+
+    # Multiply to get enough test data
+    test_urls = test_urls * 10000  # Creates ~800k URLs
+
+    def benchmark(name: str, func, *args, warmup=True):
+        if warmup:
+            # Warmup run
+            func(*args)
+
+        # Actual timing
+        start = time.perf_counter_ns()
+        result = func(*args)
+        elapsed = (time.perf_counter_ns() - start) / 1_000_000  # Convert to ms
+        print(
+            f"{name:<30} {elapsed:>8.3f} ms  ({len(test_urls)/elapsed*1000:,.0f} URLs/sec)"
+        )
+        return result
+
+    print("\nBenchmarking original vs optimized implementations...")
+    print("-" * 70)
+
+    # Original implementation
+    pattern_filter = URLPatternFilter(["*.html", "*/article/*"])
+    content_filter = ContentTypeFilter(["text/html"])
+    domain_filter = DomainFilter(blocked_domains=["ads.*", "analytics.*"])
+    chain = FilterChain([pattern_filter, content_filter, domain_filter])
+
+    # Optimized implementation
+    fast_pattern_filter = FastURLPatternFilter(["*.html", "*/article/*"])
+    fast_content_filter = FastContentTypeFilter(["text/html"])
+    fast_domain_filter = FastDomainFilter(blocked_domains=["ads.*", "analytics.*"])
+    fast_chain = FastFilterChain(
+        [fast_domain_filter, fast_content_filter, fast_pattern_filter]
+    )
+
+    # Test individual filters
+    print("\nSingle filter performance (first 1000 URLs):")
+    test_subset = test_urls[:1000]
+
+    print("\nPattern Filters:")
+    benchmark(
+        "Original Pattern Filter",
+        lambda: [pattern_filter.apply(url) for url in test_subset],
+    )
+    benchmark(
+        "Optimized Pattern Filter",
+        lambda: [fast_pattern_filter.apply(url) for url in test_subset],
+    )
+
+    print("\nContent Filters:")
+    benchmark(
+        "Original Content Filter",
+        lambda: [content_filter.apply(url) for url in test_subset],
+    )
+    benchmark(
+        "Optimized Content Filter",
+        lambda: [fast_content_filter.apply(url) for url in test_subset],
+    )
+
+    print("\nDomain Filters:")
+    benchmark(
+        "Original Domain Filter",
+        lambda: [domain_filter.apply(url) for url in test_subset],
+    )
+    benchmark(
+        "Optimized Domain Filter",
+        lambda: [fast_domain_filter.apply(url) for url in test_subset],
+    )
+
+    print("\nFull Chain Performance (all URLs):")
+    # Test chain
+    benchmark("Original Chain", lambda: [chain.apply(url) for url in test_urls])
+    benchmark("Optimized Chain", lambda: [fast_chain.apply(url) for url in test_urls])
+
+    # Memory usage
+    import sys
+
+    print("\nMemory Usage per Filter:")
+    print(f"Original Pattern Filter: {sys.getsizeof(pattern_filter):,} bytes")
+    print(f"Optimized Pattern Filter: {sys.getsizeof(fast_pattern_filter):,} bytes")
+    print(f"Original Content Filter: {sys.getsizeof(content_filter):,} bytes")
+    print(f"Optimized Content Filter: {sys.getsizeof(fast_content_filter):,} bytes")
+    print(f"Original Domain Filter: {sys.getsizeof(domain_filter):,} bytes")
+    print(f"Optimized Domain Filter: {sys.getsizeof(fast_domain_filter):,} bytes")
+
+def test_pattern_filter():
+    import time
+    from itertools import chain
+
+    # Test cases as list of tuples instead of dict for multiple patterns
+    test_cases = [
+        # Simple suffix patterns (*.html)
+        ("*.html", {
+            "https://example.com/page.html": True,
+            "https://example.com/path/doc.html": True,
+            "https://example.com/page.htm": False,
+            "https://example.com/page.html?param=1": True,
+        }),
+        
+        # Path prefix patterns (/foo/*)
+        ("*/article/*", {
+            "https://example.com/article/123": True,
+            "https://example.com/blog/article/456": True,
+            "https://example.com/articles/789": False,
+            "https://example.com/article": False,
+        }),
+        
+        # Complex patterns
+        ("blog-*-[0-9]", {
+            "https://example.com/blog-post-1": True,
+            "https://example.com/blog-test-9": True,
+            "https://example.com/blog-post": False,
+            "https://example.com/blog-post-x": False,
+        }),
+        
+        # Multiple patterns case
+        (["*.pdf", "*/download/*"], {
+            "https://example.com/doc.pdf": True,
+            "https://example.com/download/file.txt": True,
+            "https://example.com/path/download/doc": True,
+            "https://example.com/uploads/file.txt": False,
+        }),
+        
+        # Edge cases
+        ("*", {
+            "https://example.com": True,
+            "": True,
+            "http://test.com/path": True,
+        }),
+        
+        # Complex regex
+        (r"^https?://.*\.example\.com/\d+", {
+            "https://sub.example.com/123": True,
+            "http://test.example.com/456": True,
+            "https://example.com/789": False,
+            "https://sub.example.com/abc": False,
+        })
+    ]
+
+    def run_accuracy_test():
+        print("\nAccuracy Tests:")
+        print("-" * 50)
+        
+        all_passed = True
+        for patterns, test_urls in test_cases:
+            filter_obj = FastURLPatternFilter(patterns)
+            
+            for url, expected in test_urls.items():
+                result = filter_obj.apply(url)
+                if result != expected:
+                    print(f"❌ Failed: Pattern '{patterns}' with URL '{url}'")
+                    print(f"   Expected: {expected}, Got: {result}")
+                    all_passed = False
+                else:
+                    print(f"✅ Passed: Pattern '{patterns}' with URL '{url}'")
+        
+        return all_passed
+
+    def run_speed_test():
+        print("\nSpeed Tests:")
+        print("-" * 50)
+        
+        # Create a large set of test URLs
+        all_urls = list(chain.from_iterable(urls.keys() for _, urls in test_cases))
+        test_urls = all_urls * 10000  # 100K+ URLs
+        
+        # Test both implementations
+        original = URLPatternFilter(["*.html", "*/article/*", "blog-*"])
+        optimized = FastURLPatternFilter(["*.html", "*/article/*", "blog-*"])
+        
+        def benchmark(name, filter_obj):
+            start = time.perf_counter()
+            for url in test_urls:
+                filter_obj.apply(url)
+            elapsed = time.perf_counter() - start
+            urls_per_sec = len(test_urls) / elapsed
+            print(f"{name:<20} {elapsed:.3f}s ({urls_per_sec:,.0f} URLs/sec)")
+        
+        benchmark("Original Filter:", original)
+        benchmark("Optimized Filter:", optimized)
+
+    # Run tests
+    print("Running Pattern Filter Tests...")
+    accuracy_passed = run_accuracy_test()
+    
+    if accuracy_passed:
+        print("\n✨ All accuracy tests passed!")
+        run_speed_test()
+    else:
+        print("\n❌ Some accuracy tests failed!")
+
+if __name__ == "__main__":
+    run_performance_test()
+    # test_pattern_filter()

crawl4ai/deep_crawling/__init__.py

@@ -1,47 +0,0 @@
-# deep_crawling/__init__.py
-from .base_strategy import DeepCrawlDecorator, DeepCrawlStrategy
-from .bfs_strategy import BFSDeepCrawlStrategy
-from .bff_strategy import BestFirstCrawlingStrategy
-from .dfs_strategy import DFSDeepCrawlStrategy
-from .filters import (
-    FilterChain,
-    ContentTypeFilter,
-    DomainFilter,
-    URLFilter,
-    URLPatternFilter,
-    FilterStats,
-    ContentRelevanceFilter,
-    SEOFilter
-)
-from .scorers import (
-    KeywordRelevanceScorer,
-    URLScorer,
-    CompositeScorer,
-    DomainAuthorityScorer,
-    FreshnessScorer,
-    PathDepthScorer,
-    ContentTypeScorer
-)
-
-__all__ = [
-    "DeepCrawlDecorator",
-    "DeepCrawlStrategy",
-    "BFSDeepCrawlStrategy",
-    "BestFirstCrawlingStrategy",
-    "DFSDeepCrawlStrategy",
-    "FilterChain",
-    "ContentTypeFilter",
-    "DomainFilter",
-    "URLFilter",
-    "URLPatternFilter",
-    "FilterStats",
-    "ContentRelevanceFilter",
-    "SEOFilter",
-    "KeywordRelevanceScorer",
-    "URLScorer",
-    "CompositeScorer",
-    "DomainAuthorityScorer",
-    "FreshnessScorer",
-    "PathDepthScorer",
-    "ContentTypeScorer",
-]

crawl4ai/deep_crawling/base_strategy.py

@@ -1,159 +0,0 @@
-from __future__ import annotations
-
-from abc import ABC, abstractmethod
-from typing import AsyncGenerator, Optional, Set, List, Dict
-from functools import wraps
-from contextvars import ContextVar
-from ..types import AsyncWebCrawler, CrawlerRunConfig, CrawlResult, RunManyReturn
-
-
-class DeepCrawlDecorator:
-    """Decorator that adds deep crawling capability to arun method."""
-    deep_crawl_active = ContextVar("deep_crawl_active", default=False)
-    
-    def __init__(self, crawler: AsyncWebCrawler): 
-        self.crawler = crawler
-
-    def __call__(self, original_arun):
-        @wraps(original_arun)
-        async def wrapped_arun(url: str, config: CrawlerRunConfig = None, **kwargs):
-            # If deep crawling is already active, call the original method to avoid recursion.
-            if config and config.deep_crawl_strategy and not self.deep_crawl_active.get():
-                token = self.deep_crawl_active.set(True)
-                # Await the arun call to get the actual result object.
-                result_obj = await config.deep_crawl_strategy.arun(
-                    crawler=self.crawler,
-                    start_url=url,
-                    config=config
-                )
-                if config.stream:
-                    async def result_wrapper():
-                        try:
-                            async for result in result_obj:
-                                yield result
-                        finally:
-                            self.deep_crawl_active.reset(token)
-                    return result_wrapper()
-                else:
-                    try:
-                        return result_obj
-                    finally:
-                        self.deep_crawl_active.reset(token)
-            return await original_arun(url, config=config, **kwargs)
-        return wrapped_arun
-
-class DeepCrawlStrategy(ABC):
-    """
-    Abstract base class for deep crawling strategies.
-    
-    Core functions:
-      - arun: Main entry point that returns an async generator of CrawlResults.
-      - shutdown: Clean up resources.
-      - can_process_url: Validate a URL and decide whether to process it.
-      - _process_links: Extract and process links from a CrawlResult.
-    """
-
-    @abstractmethod
-    async def _arun_batch(
-        self,
-        start_url: str,
-        crawler: AsyncWebCrawler,
-        config: CrawlerRunConfig,
-    ) -> List[CrawlResult]:
-        """
-        Batch (non-streaming) mode:
-        Processes one BFS level at a time, then yields all the results.
-        """
-        pass
-
-    @abstractmethod
-    async def _arun_stream(
-        self,
-        start_url: str,
-        crawler: AsyncWebCrawler,
-        config: CrawlerRunConfig,
-    ) -> AsyncGenerator[CrawlResult, None]:
-        """
-        Streaming mode:
-        Processes one BFS level at a time and yields results immediately as they arrive.
-        """
-        pass
-    
-    async def arun(
-        self,
-        start_url: str,
-        crawler: AsyncWebCrawler,
-        config: Optional[CrawlerRunConfig] = None,
-    ) -> RunManyReturn:
-        """
-        Traverse the given URL using the specified crawler.
-        
-        Args:
-            start_url (str): The URL from which to start crawling.
-            crawler (AsyncWebCrawler): The crawler instance to use.
-            crawler_run_config (Optional[CrawlerRunConfig]): Crawler configuration.
-        
-        Returns:
-            Union[CrawlResultT, List[CrawlResultT], AsyncGenerator[CrawlResultT, None]]
-        """
-        if config is None:
-            raise ValueError("CrawlerRunConfig must be provided")
-
-        if config.stream:
-            return self._arun_stream(start_url, crawler, config)
-        else:
-            return await self._arun_batch(start_url, crawler, config)
-
-    def __call__(self, start_url: str, crawler: AsyncWebCrawler, config: CrawlerRunConfig):
-        return self.arun(start_url, crawler, config)
-
-    @abstractmethod
-    async def shutdown(self) -> None:
-        """
-        Clean up resources used by the deep crawl strategy.
-        """
-        pass
-
-    @abstractmethod
-    async def can_process_url(self, url: str, depth: int) -> bool:
-        """
-        Validate the URL format and apply custom filtering logic.
-        
-        Args:
-            url (str): The URL to validate.
-            depth (int): The current depth in the crawl.
-        
-        Returns:
-            bool: True if the URL should be processed, False otherwise.
-        """
-        pass
-
-    @abstractmethod
-    async def link_discovery(
-        self,
-        result: CrawlResult,
-        source_url: str,
-        current_depth: int,
-        visited: Set[str],
-        next_level: List[tuple],
-        depths: Dict[str, int],
-    ) -> None:
-        """
-        Extract and process links from the given crawl result.
-        
-        This method should:
-          - Validate each extracted URL using can_process_url.
-          - Optionally score URLs.
-          - Append valid URLs (and their parent references) to the next_level list.
-          - Update the depths dictionary with the new depth for each URL.
-        
-        Args:
-            result (CrawlResult): The result from a crawl operation.
-            source_url (str): The URL from which this result was obtained.
-            current_depth (int): The depth at which the source URL was processed.
-            visited (Set[str]): Set of already visited URLs.
-            next_level (List[tuple]): List of tuples (url, parent_url) for the next BFS level.
-            depths (Dict[str, int]): Mapping of URLs to their current depth.
-        """
-        pass
-

crawl4ai/deep_crawling/bff_strategy.py

@@ -1,255 +0,0 @@
-# best_first_crawling_strategy.py
-import asyncio
-import logging
-from datetime import datetime
-from typing import AsyncGenerator, Optional, Set, Dict, List, Tuple
-from urllib.parse import urlparse
-
-from ..models import TraversalStats
-from .filters import FilterChain
-from .scorers import URLScorer
-from . import DeepCrawlStrategy
-
-from ..types import AsyncWebCrawler, CrawlerRunConfig, CrawlResult, RunManyReturn
-
-from math import inf as infinity
-
-# Configurable batch size for processing items from the priority queue
-BATCH_SIZE = 10
-
-
-class BestFirstCrawlingStrategy(DeepCrawlStrategy):
-    """
-    Best-First Crawling Strategy using a priority queue.
-    
-    This strategy prioritizes URLs based on their score, ensuring that higher-value
-    pages are crawled first. It reimplements the core traversal loop to use a priority
-    queue while keeping URL validation and link discovery consistent with our design.
-    
-    Core methods:
-      - arun: Returns either a list (batch mode) or an async generator (stream mode).
-      - _arun_best_first: Core generator that uses a priority queue to yield CrawlResults.
-      - can_process_url: Validates URLs and applies filtering (inherited behavior).
-      - link_discovery: Extracts and validates links from a CrawlResult.
-    """
-    def __init__(
-        self,
-        max_depth: int,
-        filter_chain: FilterChain = FilterChain(),
-        url_scorer: Optional[URLScorer] = None,
-        include_external: bool = False,
-        max_pages: int = infinity,
-        logger: Optional[logging.Logger] = None,
-    ):
-        self.max_depth = max_depth
-        self.filter_chain = filter_chain
-        self.url_scorer = url_scorer
-        self.include_external = include_external
-        self.max_pages = max_pages
-        self.logger = logger or logging.getLogger(__name__)
-        self.stats = TraversalStats(start_time=datetime.now())
-        self._cancel_event = asyncio.Event()
-        self._pages_crawled = 0
-
-    async def can_process_url(self, url: str, depth: int) -> bool:
-        """
-        Validate the URL format and apply filtering.
-        For the starting URL (depth 0), filtering is bypassed.
-        """
-        try:
-            parsed = urlparse(url)
-            if not parsed.scheme or not parsed.netloc:
-                raise ValueError("Missing scheme or netloc")
-            if parsed.scheme not in ("http", "https"):
-                raise ValueError("Invalid scheme")
-            if "." not in parsed.netloc:
-                raise ValueError("Invalid domain")
-        except Exception as e:
-            self.logger.warning(f"Invalid URL: {url}, error: {e}")
-            return False
-
-        if depth != 0 and not await self.filter_chain.apply(url):
-            return False
-
-        return True
-
-    async def link_discovery(
-        self,
-        result: CrawlResult,
-        source_url: str,
-        current_depth: int,
-        visited: Set[str],
-        next_links: List[Tuple[str, Optional[str]]],
-        depths: Dict[str, int],
-    ) -> None:
-        """
-        Extract links from the crawl result, validate them, and append new URLs
-        (with their parent references) to next_links.
-        Also updates the depths dictionary.
-        """
-        new_depth = current_depth + 1
-        if new_depth > self.max_depth:
-            return
-            
-        # If we've reached the max pages limit, don't discover new links
-        remaining_capacity = self.max_pages - self._pages_crawled
-        if remaining_capacity <= 0:
-            self.logger.info(f"Max pages limit ({self.max_pages}) reached, stopping link discovery")
-            return
-
-        # Retrieve internal links; include external links if enabled.
-        links = result.links.get("internal", [])
-        if self.include_external:
-            links += result.links.get("external", [])
-
-        # If we have more links than remaining capacity, limit how many we'll process
-        valid_links = []
-        for link in links:
-            url = link.get("href")
-            if url in visited:
-                continue
-            if not await self.can_process_url(url, new_depth):
-                self.stats.urls_skipped += 1
-                continue
-                
-            valid_links.append(url)
-            
-        # If we have more valid links than capacity, limit them
-        if len(valid_links) > remaining_capacity:
-            valid_links = valid_links[:remaining_capacity]
-            self.logger.info(f"Limiting to {remaining_capacity} URLs due to max_pages limit")
-            
-        # Record the new depths and add to next_links
-        for url in valid_links:
-            depths[url] = new_depth
-            next_links.append((url, source_url))
-
-    async def _arun_best_first(
-        self,
-        start_url: str,
-        crawler: AsyncWebCrawler,
-        config: CrawlerRunConfig,
-    ) -> AsyncGenerator[CrawlResult, None]:
-        """
-        Core best-first crawl method using a priority queue.
-        
-        The queue items are tuples of (score, depth, url, parent_url). Lower scores
-        are treated as higher priority. URLs are processed in batches for efficiency.
-        """
-        queue: asyncio.PriorityQueue = asyncio.PriorityQueue()
-        # Push the initial URL with score 0 and depth 0.
-        await queue.put((0, 0, start_url, None))
-        visited: Set[str] = set()
-        depths: Dict[str, int] = {start_url: 0}
-
-        while not queue.empty() and not self._cancel_event.is_set():
-            # Stop if we've reached the max pages limit
-            if self._pages_crawled >= self.max_pages:
-                self.logger.info(f"Max pages limit ({self.max_pages}) reached, stopping crawl")
-                break
-                
-            batch: List[Tuple[float, int, str, Optional[str]]] = []
-            # Retrieve up to BATCH_SIZE items from the priority queue.
-            for _ in range(BATCH_SIZE):
-                if queue.empty():
-                    break
-                item = await queue.get()
-                score, depth, url, parent_url = item
-                if url in visited:
-                    continue
-                visited.add(url)
-                batch.append(item)
-
-            if not batch:
-                continue
-
-            # Process the current batch of URLs.
-            urls = [item[2] for item in batch]
-            batch_config = config.clone(deep_crawl_strategy=None, stream=True)
-            stream_gen = await crawler.arun_many(urls=urls, config=batch_config)
-            async for result in stream_gen:
-                result_url = result.url
-                # Find the corresponding tuple from the batch.
-                corresponding = next((item for item in batch if item[2] == result_url), None)
-                if not corresponding:
-                    continue
-                score, depth, url, parent_url = corresponding
-                result.metadata = result.metadata or {}
-                result.metadata["depth"] = depth
-                result.metadata["parent_url"] = parent_url
-                result.metadata["score"] = score
-                
-                # Count only successful crawls toward max_pages limit
-                if result.success:
-                    self._pages_crawled += 1
-                
-                yield result
-                
-                # Only discover links from successful crawls
-                if result.success:
-                    # Discover new links from this result
-                    new_links: List[Tuple[str, Optional[str]]] = []
-                    await self.link_discovery(result, result_url, depth, visited, new_links, depths)
-                    
-                    for new_url, new_parent in new_links:
-                        new_depth = depths.get(new_url, depth + 1)
-                        new_score = self.url_scorer.score(new_url) if self.url_scorer else 0
-                        await queue.put((new_score, new_depth, new_url, new_parent))
-
-        # End of crawl.
-
-    async def _arun_batch(
-        self,
-        start_url: str,
-        crawler: AsyncWebCrawler,
-        config: CrawlerRunConfig,
-    ) -> List[CrawlResult]:
-        """
-        Best-first crawl in batch mode.
-        
-        Aggregates all CrawlResults into a list.
-        """
-        results: List[CrawlResult] = []
-        async for result in self._arun_best_first(start_url, crawler, config):
-            results.append(result)
-        return results
-
-    async def _arun_stream(
-        self,
-        start_url: str,
-        crawler: AsyncWebCrawler,
-        config: CrawlerRunConfig,
-    ) -> AsyncGenerator[CrawlResult, None]:
-        """
-        Best-first crawl in streaming mode.
-        
-        Yields CrawlResults as they become available.
-        """
-        async for result in self._arun_best_first(start_url, crawler, config):
-            yield result
-
-    async def arun(
-        self,
-        start_url: str,
-        crawler: AsyncWebCrawler,
-        config: Optional[CrawlerRunConfig] = None,
-    ) -> "RunManyReturn":
-        """
-        Main entry point for best-first crawling.
-        
-        Returns either a list (batch mode) or an async generator (stream mode)
-        of CrawlResults.
-        """
-        if config is None:
-            raise ValueError("CrawlerRunConfig must be provided")
-        if config.stream:
-            return self._arun_stream(start_url, crawler, config)
-        else:
-            return await self._arun_batch(start_url, crawler, config)
-
-    async def shutdown(self) -> None:
-        """
-        Signal cancellation and clean up resources.
-        """
-        self._cancel_event.set()
-        self.stats.end_time = datetime.now()

crawl4ai/deep_crawling/bfs_strategy.py

@@ -1,241 +0,0 @@
-# bfs_deep_crawl_strategy.py
-import asyncio
-import logging
-from datetime import datetime
-from typing import AsyncGenerator, Optional, Set, Dict, List, Tuple
-from urllib.parse import urlparse
-
-from ..models import TraversalStats
-from .filters import FilterChain
-from .scorers import URLScorer
-from . import DeepCrawlStrategy  
-from ..types import AsyncWebCrawler, CrawlerRunConfig, CrawlResult
-from math import inf as infinity
-
-class BFSDeepCrawlStrategy(DeepCrawlStrategy):
-    """
-    Breadth-First Search deep crawling strategy.
-    
-    Core functions:
-      - arun: Main entry point; splits execution into batch or stream modes.
-      - link_discovery: Extracts, filters, and (if needed) scores the outgoing URLs.
-      - can_process_url: Validates URL format and applies the filter chain.
-    """
-    def __init__(
-        self,
-        max_depth: int,
-        filter_chain: FilterChain = FilterChain(),
-        url_scorer: Optional[URLScorer] = None,        
-        include_external: bool = False,
-        score_threshold: float = -infinity,
-        max_pages: int = infinity,
-        logger: Optional[logging.Logger] = None,
-    ):
-        self.max_depth = max_depth
-        self.filter_chain = filter_chain
-        self.url_scorer = url_scorer
-        self.include_external = include_external
-        self.score_threshold = score_threshold
-        self.max_pages = max_pages
-        self.logger = logger or logging.getLogger(__name__)
-        self.stats = TraversalStats(start_time=datetime.now())
-        self._cancel_event = asyncio.Event()
-        self._pages_crawled = 0
-
-    async def can_process_url(self, url: str, depth: int) -> bool:
-        """
-        Validates the URL and applies the filter chain.
-        For the start URL (depth 0) filtering is bypassed.
-        """
-        try:
-            parsed = urlparse(url)
-            if not parsed.scheme or not parsed.netloc:
-                raise ValueError("Missing scheme or netloc")
-            if parsed.scheme not in ("http", "https"):
-                raise ValueError("Invalid scheme")
-            if "." not in parsed.netloc:
-                raise ValueError("Invalid domain")
-        except Exception as e:
-            self.logger.warning(f"Invalid URL: {url}, error: {e}")
-            return False
-
-        if depth != 0 and not await self.filter_chain.apply(url):
-            return False
-
-        return True
-
-    async def link_discovery(
-        self,
-        result: CrawlResult,
-        source_url: str,
-        current_depth: int,
-        visited: Set[str],
-        next_level: List[Tuple[str, Optional[str]]],
-        depths: Dict[str, int],
-    ) -> None:
-        """
-        Extracts links from the crawl result, validates and scores them, and
-        prepares the next level of URLs.
-        Each valid URL is appended to next_level as a tuple (url, parent_url)
-        and its depth is tracked.
-        """            
-        next_depth = current_depth + 1
-        if next_depth > self.max_depth:
-            return
-
-        # If we've reached the max pages limit, don't discover new links
-        remaining_capacity = self.max_pages - self._pages_crawled
-        if remaining_capacity <= 0:
-            self.logger.info(f"Max pages limit ({self.max_pages}) reached, stopping link discovery")
-            return
-
-        # Get internal links and, if enabled, external links.
-        links = result.links.get("internal", [])
-        if self.include_external:
-            links += result.links.get("external", [])
-
-        valid_links = []
-        
-        # First collect all valid links
-        for link in links:
-            url = link.get("href")
-            if url in visited:
-                continue
-            if not await self.can_process_url(url, next_depth):
-                self.stats.urls_skipped += 1
-                continue
-
-            # Score the URL if a scorer is provided
-            score = self.url_scorer.score(url) if self.url_scorer else 0
-            
-            # Skip URLs with scores below the threshold
-            if score < self.score_threshold:
-                self.logger.debug(f"URL {url} skipped: score {score} below threshold {self.score_threshold}")
-                self.stats.urls_skipped += 1
-                continue
-            
-            valid_links.append((url, score))
-        
-        # If we have more valid links than capacity, sort by score and take the top ones
-        if len(valid_links) > remaining_capacity:
-            if self.url_scorer:
-                # Sort by score in descending order
-                valid_links.sort(key=lambda x: x[1], reverse=True)
-            # Take only as many as we have capacity for
-            valid_links = valid_links[:remaining_capacity]
-            self.logger.info(f"Limiting to {remaining_capacity} URLs due to max_pages limit")
-            
-        # Process the final selected links
-        for url, score in valid_links:
-            # attach the score to metadata if needed
-            if score:
-                result.metadata = result.metadata or {}
-                result.metadata["score"] = score
-            next_level.append((url, source_url))
-            depths[url] = next_depth
-
-    async def _arun_batch(
-        self,
-        start_url: str,
-        crawler: AsyncWebCrawler,
-        config: CrawlerRunConfig,
-    ) -> List[CrawlResult]:
-        """
-        Batch (non-streaming) mode:
-        Processes one BFS level at a time, then yields all the results.
-        """
-        visited: Set[str] = set()
-        # current_level holds tuples: (url, parent_url)
-        current_level: List[Tuple[str, Optional[str]]] = [(start_url, None)]
-        depths: Dict[str, int] = {start_url: 0}
-
-        results: List[CrawlResult] = []
-
-        while current_level and not self._cancel_event.is_set():
-            next_level: List[Tuple[str, Optional[str]]] = []
-            urls = [url for url, _ in current_level]
-            visited.update(urls)
-
-            # Clone the config to disable deep crawling recursion and enforce batch mode.
-            batch_config = config.clone(deep_crawl_strategy=None, stream=False)
-            batch_results = await crawler.arun_many(urls=urls, config=batch_config)
-            
-            # Update pages crawled counter - count only successful crawls
-            successful_results = [r for r in batch_results if r.success]
-            self._pages_crawled += len(successful_results)
-            
-            for result in batch_results:
-                url = result.url
-                depth = depths.get(url, 0)
-                result.metadata = result.metadata or {}
-                result.metadata["depth"] = depth
-                parent_url = next((parent for (u, parent) in current_level if u == url), None)
-                result.metadata["parent_url"] = parent_url
-                results.append(result)
-                
-                # Only discover links from successful crawls
-                if result.success:
-                    # Link discovery will handle the max pages limit internally
-                    await self.link_discovery(result, url, depth, visited, next_level, depths)
-
-            current_level = next_level
-
-        return results
-
-    async def _arun_stream(
-        self,
-        start_url: str,
-        crawler: AsyncWebCrawler,
-        config: CrawlerRunConfig,
-    ) -> AsyncGenerator[CrawlResult, None]:
-        """
-        Streaming mode:
-        Processes one BFS level at a time and yields results immediately as they arrive.
-        """
-        visited: Set[str] = set()
-        current_level: List[Tuple[str, Optional[str]]] = [(start_url, None)]
-        depths: Dict[str, int] = {start_url: 0}
-
-        while current_level and not self._cancel_event.is_set():
-            next_level: List[Tuple[str, Optional[str]]] = []
-            urls = [url for url, _ in current_level]
-            visited.update(urls)
-
-            stream_config = config.clone(deep_crawl_strategy=None, stream=True)
-            stream_gen = await crawler.arun_many(urls=urls, config=stream_config)
-            
-            # Keep track of processed results for this batch
-            results_count = 0
-            async for result in stream_gen:
-                url = result.url
-                depth = depths.get(url, 0)
-                result.metadata = result.metadata or {}
-                result.metadata["depth"] = depth
-                parent_url = next((parent for (u, parent) in current_level if u == url), None)
-                result.metadata["parent_url"] = parent_url
-                
-                # Count only successful crawls
-                if result.success:
-                    self._pages_crawled += 1
-                
-                results_count += 1
-                yield result
-                
-                # Only discover links from successful crawls
-                if result.success:
-                    # Link discovery will handle the max pages limit internally
-                    await self.link_discovery(result, url, depth, visited, next_level, depths)
-            
-            # If we didn't get results back (e.g. due to errors), avoid getting stuck in an infinite loop
-            # by considering these URLs as visited but not counting them toward the max_pages limit
-            if results_count == 0 and urls:
-                self.logger.warning(f"No results returned for {len(urls)} URLs, marking as visited")
-                
-            current_level = next_level
-
-    async def shutdown(self) -> None:
-        """
-        Clean up resources and signal cancellation of the crawl.
-        """
-        self._cancel_event.set()
-        self.stats.end_time = datetime.now()

crawl4ai/deep_crawling/crazy.py

@@ -1,432 +0,0 @@
-from __future__ import annotations
-# I just got crazy, trying to wrute K&R C but in Python. Right now I feel like I'm in a quantum state.
-# I probably won't use this; I just want to leave it here. A century later, the future human race will be like, "WTF?"
-
-# ------ Imports That Will Make You Question Reality ------ #
-from functools import wraps
-from contextvars import ContextVar
-import inspect
-
-from crawl4ai import CacheMode
-from crawl4ai.async_configs import CrawlerRunConfig
-from crawl4ai.models import CrawlResult, TraversalStats
-from crawl4ai.deep_crawling.filters import FilterChain
-from crawl4ai.async_webcrawler import AsyncWebCrawler
-import time
-import logging
-from urllib.parse import urlparse
-
-from abc import ABC, abstractmethod
-from collections import deque
-import asyncio
-from typing import (
-    AsyncGenerator,
-    Dict,
-    List,
-    TypeVar,
-    Generic,
-    Tuple,
-    Callable,
-    Awaitable,
-    Union,
-)
-from functools import lru_cache
-import mmh3
-from bitarray import bitarray
-import numpy as np
-from heapq import heappush, heappop
-
-# ------ Type Algebra Mastery ------ #
-CrawlResultT = TypeVar("CrawlResultT", bound="CrawlResult")
-PriorityT = TypeVar("PriorityT")
-P = TypeVar("P")
-
-# ------ Hyperscalar Context Management ------ #
-deep_crawl_ctx = ContextVar("deep_crawl_stack", default=deque())
-
-# ------ Algebraic Crawler Monoid ------ #
-class TraversalContext:
-    __slots__ = ('visited', 'frontier', 'depths', 'priority_fn', 'current_depth')
-    
-    def __init__(self,
-                 priority_fn: Callable[[str], Awaitable[float]] = lambda _: 1.0):
-        self.visited: BloomFilter = BloomFilter(10**6, 0.01)  # 1M items, 1% FP
-        self.frontier: PriorityQueue = PriorityQueue()
-        self.depths: Dict[str, int] = {}
-        self.priority_fn = priority_fn
-        self.current_depth = 0
-
-    def clone_for_level(self) -> TraversalContext:
-        """Monadic context propagation"""
-        new_ctx = TraversalContext(self.priority_fn)
-        new_ctx.visited = self.visited.copy()
-        new_ctx.depths = self.depths.copy()
-        new_ctx.current_depth = self.current_depth
-        return new_ctx
-
-class PriorityQueue(Generic[PriorityT]):
-    """Fibonacci heap-inspired priority queue with O(1) amortized operations"""
-    __slots__ = ('_heap', '_index')
-
-    def __init__(self):
-        self._heap: List[Tuple[PriorityT, float, P]] = []
-        self._index: Dict[P, int] = {}
-
-    def insert(self, priority: PriorityT, item: P) -> None:
-        tiebreaker = time.time()  # Ensure FIFO for equal priorities
-        heappush(self._heap, (priority, tiebreaker, item))
-        self._index[item] = len(self._heap) - 1
-
-    def extract(self, top_n = 1) -> P:
-        items = []
-        for _ in range(top_n):
-            if not self._heap:
-                break
-            priority, _, item = heappop(self._heap)
-            del self._index[item]
-            items.append(item)
-        if not items:
-            raise IndexError("Priority queue empty")
-        return items
-        # while self._heap:
-        #     _, _, item = heappop(self._heap)
-        #     if item in self._index:
-        #         del self._index[item]
-        #         return item
-        raise IndexError("Priority queue empty")
-
-
-    def is_empty(self) -> bool:
-        return not bool(self._heap)
-
-class BloomFilter:
-    """Optimal Bloom filter using murmur3 hash avalanche"""
-    __slots__ = ('size', 'hashes', 'bits')
-
-    def __init__(self, capacity: int, error_rate: float):
-        self.size = self._optimal_size(capacity, error_rate)
-        self.hashes = self._optimal_hashes(capacity, self.size)
-        self.bits = bitarray(self.size)
-        self.bits.setall(False)
-
-    @staticmethod
-    def _optimal_size(n: int, p: float) -> int:
-        m = - (n * np.log(p)) / (np.log(2) ** 2)
-        return int(np.ceil(m))
-
-    @staticmethod
-    def _optimal_hashes(n: int, m: int) -> int:
-        k = (m / n) * np.log(2)
-        return int(np.ceil(k))
-
-    def add(self, item: str) -> None:
-        for seed in range(self.hashes):
-            digest = mmh3.hash(item, seed) % self.size
-            self.bits[digest] = True
-
-    def __contains__(self, item: str) -> bool:
-        return all(
-            self.bits[mmh3.hash(item, seed) % self.size]
-            for seed in range(self.hashes)
-        )
-
-    def copy(self) -> BloomFilter:
-        new = object.__new__(BloomFilter)
-        new.size = self.size
-        new.hashes = self.hashes
-        new.bits = self.bits.copy()
-        return new
-    
-    def __len__(self) -> int:
-        """
-        Estimates the number of items in the filter using the 
-        count of set bits and the formula:
-        n = -m/k * ln(1 - X/m)
-        where:
-            m = size of bit array
-            k = number of hash functions
-            X = count of set bits
-        """
-        set_bits = self.bits.count(True)
-        if set_bits == 0:
-            return 0
-            
-        # Use the inverse bloom filter formula to estimate cardinality
-        return int(
-            -(self.size / self.hashes) * 
-            np.log(1 - set_bits / self.size)
-        )
-    
-    def bit_count(self) -> int:
-        """Returns the raw count of set bits in the filter"""
-        return self.bits.count(True)
-        
-    def __repr__(self) -> str:
-        return f"BloomFilter(est_items={len(self)}, bits={self.bit_count()}/{self.size})"
-
-# ------ Hyper-Optimal Deep Crawl Core ------ #
-class DeepCrawlDecorator:
-    """Metaprogramming marvel: Zero-cost deep crawl abstraction"""
-    def __init__(self, crawler: AsyncWebCrawler):
-        self.crawler = crawler
-
-    def __call__(self, original_arun: Callable) -> Callable:
-        @wraps(original_arun)
-        async def quantum_arun(url: str, config: CrawlerRunConfig = None, **kwargs):
-            stack = deep_crawl_ctx.get()
-            if config and config.deep_crawl_strategy and not stack:
-                stack.append(self.crawler)
-                try:
-                    deep_crawl_ctx.set(stack)
-                    async for result in config.deep_crawl_strategy.traverse(
-                        start_url=url,
-                        crawler=self.crawler,
-                        config=config
-                    ):
-                        yield result
-                finally:
-                    stack.pop()
-                    deep_crawl_ctx.set(stack)
-            else:
-                result = await original_arun(url, config=config, **kwargs)
-                yield result
-        return quantum_arun
-
-
-async def collect_results(url, crawler, config):
-    if id(getattr(crawler, "arun")) != id(getattr(crawler, "original_arun")):
-        setattr(crawler, "arun", getattr(crawler, "original_arun"))
-
-    ret = crawler.arun(url, config=config)
-    # If arun is an async generator, iterate over it
-    if inspect.isasyncgen(ret):
-        return [r async for r in ret]
-    # Otherwise, await the coroutine and normalize to a list
-    result = await ret
-    return result if isinstance(result, list) else [result]
-
-async def collect_many_results(url, crawler, config):
-    # Replace back arun to its original implementation
-    if id(getattr(crawler, "arun")) != id(getattr(crawler, "original_arun")):
-        setattr(crawler, "arun", getattr(crawler, "original_arun"))
-    ret = crawler.arun_many(url, config=config)
-    # If arun is an async generator, iterate over it
-    if inspect.isasyncgen(ret):
-        return [r async for r in ret]
-    # Otherwise, await the coroutine and normalize to a list
-    result = await ret
-    return result if isinstance(result, list) else [result]
-
-
-# ------ Deep Crawl Strategy Interface ------ #
-CrawlResultT = TypeVar("CrawlResultT", bound=CrawlResult)
-# In batch mode we return List[CrawlResult] and in stream mode an AsyncGenerator.
-RunManyReturn = Union[CrawlResultT, List[CrawlResultT], AsyncGenerator[CrawlResultT, None]]
-
-
-class DeepCrawlStrategy(ABC):
-    """Abstract base class that will make Dijkstra smile"""
-    @abstractmethod
-    async def traverse(self,
-                      start_url: str,
-                      crawler: AsyncWebCrawler,
-                      config: CrawlerRunConfig) -> RunManyReturn:
-        """Traverse with O(1) memory complexity via generator fusion"""
-        ...
-
-    @abstractmethod
-    def precompute_priority(self, url: str) -> Awaitable[float]:
-        """Quantum-inspired priority precomputation"""
-        pass
-
-    @abstractmethod
-    async def link_hypercube(self, result: CrawlResult) -> AsyncGenerator[str, None]:
-        """Hilbert-curve optimized link generation"""
-        pass
-
-# ------ BFS That Would Make Knuth Proud ------ #
-
-def calculate_quantum_batch_size(
-    depth: int,
-    max_depth: int,
-    frontier_size: int,
-    visited_size: int
-) -> int:
-    """
-    Calculates optimal batch size for URL processing using quantum-inspired mathematical principles.
-    
-    This function implements a sophisticated batch size calculation using:
-    1. Golden Ratio (φ) based scaling for optimal irrationality
-    2. Depth-aware amplitude modulation
-    3. Harmonic series dampening
-    4. Logarithmic growth control
-    5. Dynamic frontier adaptation
-    
-    The formula follows the quantum harmonic oscillator principle:
-        N = ⌈φ^(2d) * log₂(|V|) * H(d)⁻¹ * min(20, |F|/10)⌉
-    where:
-        φ = Golden Ratio ((1 + √5) / 2)
-        d = depth factor (normalized remaining depth)
-        |V| = size of visited set
-        H(d) = d-th harmonic number
-        |F| = frontier size
-    
-    Args:
-        depth (int): Current traversal depth
-        max_depth (int): Maximum allowed depth
-        frontier_size (int): Current size of frontier queue
-        visited_size (int): Number of URLs visited so far
-    
-    Returns:
-        int: Optimal batch size bounded between 1 and 100
-        
-    Mathematical Properties:
-        - Maintains O(log n) growth with respect to visited size
-        - Provides φ-optimal distribution of resources
-        - Ensures quantum-like state transitions between depths
-        - Harmonically dampened to prevent exponential explosion
-    """
-    # Golden ratio φ = (1 + √5) / 2
-    φ = (1 + 5 ** 0.5) / 2
-    
-    # Calculate normalized depth factor [0, 1]
-    depth_factor = (max_depth - depth) / max_depth if depth < max_depth else 0
-    
-    # Compute harmonic number for current depth
-    harmonic = sum(1/k for k in range(1, depth + 2))
-    
-    # Calculate quantum batch size
-    batch_size = int(np.ceil(
-        (φ ** (depth_factor * 2)) *          # Golden ratio scaling
-        np.log2(visited_size + 2) *          # Logarithmic growth factor
-        (1 / harmonic) *                     # Harmonic dampening
-        max(1, min(20, frontier_size / 10))  # Frontier-aware scaling
-    ))
-    
-    # Enforce practical bounds
-    return max(1, min(100, batch_size))
-
-
-class BFSDeepCrawlStrategy(DeepCrawlStrategy):
-    """Breadth-First Search with Einstein-Rosen bridge optimization"""
-    __slots__ = ('max_depth', 'filter_chain', 'priority_fn', 'stats', '_cancel')
-
-    def __init__(self,
-                 max_depth: int,
-                 filter_chain: FilterChain = FilterChain(),
-                 priority_fn: Callable[[str], Awaitable[float]] = lambda url: 1.0,
-                 logger: logging.Logger = None):
-        self.max_depth = max_depth
-        self.filter_chain = filter_chain
-        self.priority_fn = priority_fn
-        self.stats = TraversalStats()
-        self._cancel = asyncio.Event()
-        self.semaphore = asyncio.Semaphore(1000)
-
-    async def traverse(self,
-                      start_url: str,
-                      crawler: AsyncWebCrawler,
-                      config: CrawlerRunConfig) -> RunManyReturn:
-        """Non-blocking BFS with O(b^d) time complexity awareness"""
-        ctx = TraversalContext(self.priority_fn)
-        ctx.frontier.insert(self.priority_fn(start_url), (start_url, None, 0))
-        ctx.visited.add(start_url)
-        ctx.depths[start_url] = 0
-
-        while not ctx.frontier.is_empty() and not self._cancel.is_set():
-            # Use the best algorith, to find top_n value
-            top_n = calculate_quantum_batch_size(
-                depth=ctx.current_depth,
-                max_depth=self.max_depth,
-                frontier_size=len(ctx.frontier._heap),
-                visited_size=len(ctx.visited)
-            )
-
-            urls = ctx.frontier.extract(top_n=top_n)
-            # url, parent, depth = ctx.frontier.extract(top_n=top_n)
-            if urls:
-                ctx.current_depth = urls[0][2]
-
-            async with self.semaphore:
-                results = await collect_many_results([url for (url, parent, depth) in urls], crawler, config)
-                # results = await asyncio.gather(*[
-                #     collect_results(url, crawler, config) for (url, parent, depth) in urls
-                # ])
-                # result = _result[0]
-                for ix, result in enumerate(results):
-                    url, parent, depth = result.url, urls[ix][1], urls[ix][2]
-                    result.metadata['depth'] = depth
-                    result.metadata['parent'] = parent
-                    yield result
-
-                    if depth < self.max_depth:
-                        async for link in self.link_hypercube(result):
-                            if link not in ctx.visited:
-                                priority = self.priority_fn(link)
-                                ctx.frontier.insert(priority, (link, url, depth + 1))
-                                ctx.visited.add(link)
-                                ctx.depths[link] = depth + 1
-
-    @lru_cache(maxsize=65536)
-    async def validate_url(self, url: str) -> bool:
-        """Memoized URL validation with λ-calculus purity"""
-        try:
-            parsed = urlparse(url)
-            return (parsed.scheme in {'http', 'https'}
-                    and '.' in parsed.netloc
-                    and await self.filter_chain.apply(url))
-        except Exception:
-            return False
-
-    async def link_hypercube(self, result: CrawlResult) -> AsyncGenerator[str, None]:
-        """Hilbert-ordered link generation with O(1) yield latency"""
-        links = (link['href'] for link in result.links.get('internal', []))
-        validated = filter(self.validate_url, links)
-        for link in sorted(validated, key=lambda x: -self.priority_fn(x)):
-            yield link
-
-    def __aiter__(self) -> AsyncGenerator[CrawlResult, None]:
-        """Native async iterator interface"""
-        return self.traverse()
-
-    async def __anext__(self) -> CrawlResult:
-        """True async iterator protocol implementation"""
-        result = await self.traverse().__anext__()
-        if result:
-            return result
-        raise StopAsyncIteration
-
-    async def precompute_priority(self, url):
-        return super().precompute_priority(url)
-
-    async def shutdown(self):
-        self._cancel.set()
-
-# ------ Usage That Will Drop Jaws ------ #
-async def main():
-    """Quantum crawl example"""
-    strategy = BFSDeepCrawlStrategy(
-        max_depth=2,
-        priority_fn=lambda url: 1.0 / (len(url) + 1e-9),  # Inverse length priority
-        # filter_chain=FilterChain(...)
-    )
-
-    config: CrawlerRunConfig = CrawlerRunConfig(
-        deep_crawl_strategy=strategy,
-        stream=False,
-        verbose=True,
-        cache_mode=CacheMode.BYPASS
-    )
-
-    async with AsyncWebCrawler() as crawler:
-        run_decorator = DeepCrawlDecorator(crawler)
-        setattr(crawler, "original_arun", crawler.arun)
-        crawler.arun = run_decorator(crawler.arun)
-        start_time = time.perf_counter()
-        async for result in crawler.arun("https://docs.crawl4ai.com", config=config):
-            print(f"🌀 {result.url} (Depth: {result.metadata['depth']})")
-        print(f"Deep crawl completed in {time.perf_counter() - start_time:.2f}s")
-
-
-if __name__ == "__main__":
-    asyncio.run(main())

crawl4ai/deep_crawling/dfs_strategy.py

@@ -1,102 +0,0 @@
-# dfs_deep_crawl_strategy.py
-from typing import AsyncGenerator, Optional, Set, Dict, List, Tuple
-
-from ..models import CrawlResult
-from .bfs_strategy import BFSDeepCrawlStrategy  # noqa
-from ..types import AsyncWebCrawler, CrawlerRunConfig
-
-class DFSDeepCrawlStrategy(BFSDeepCrawlStrategy):
-    """
-    Depth-First Search (DFS) deep crawling strategy.
-
-    Inherits URL validation and link discovery from BFSDeepCrawlStrategy.
-    Overrides _arun_batch and _arun_stream to use a stack (LIFO) for DFS traversal.
-    """
-    async def _arun_batch(
-        self,
-        start_url: str,
-        crawler: AsyncWebCrawler,
-        config: CrawlerRunConfig,
-    ) -> List[CrawlResult]:
-        """
-        Batch (non-streaming) DFS mode.
-        Uses a stack to traverse URLs in DFS order, aggregating CrawlResults into a list.
-        """
-        visited: Set[str] = set()
-        # Stack items: (url, parent_url, depth)
-        stack: List[Tuple[str, Optional[str], int]] = [(start_url, None, 0)]
-        depths: Dict[str, int] = {start_url: 0}
-        results: List[CrawlResult] = []
-
-        while stack and not self._cancel_event.is_set():
-            url, parent, depth = stack.pop()
-            if url in visited or depth > self.max_depth:
-                continue
-            visited.add(url)
-
-            # Clone config to disable recursive deep crawling.
-            batch_config = config.clone(deep_crawl_strategy=None, stream=False)
-            url_results = await crawler.arun_many(urls=[url], config=batch_config)
-            
-            for result in url_results:
-                result.metadata = result.metadata or {}
-                result.metadata["depth"] = depth
-                result.metadata["parent_url"] = parent
-                if self.url_scorer:
-                    result.metadata["score"] = self.url_scorer.score(url)
-                results.append(result)
-                
-                # Count only successful crawls toward max_pages limit
-                if result.success:
-                    self._pages_crawled += 1
-                    
-                    # Only discover links from successful crawls
-                    new_links: List[Tuple[str, Optional[str]]] = []
-                    await self.link_discovery(result, url, depth, visited, new_links, depths)
-                    
-                    # Push new links in reverse order so the first discovered is processed next.
-                    for new_url, new_parent in reversed(new_links):
-                        new_depth = depths.get(new_url, depth + 1)
-                        stack.append((new_url, new_parent, new_depth))
-        return results
-
-    async def _arun_stream(
-        self,
-        start_url: str,
-        crawler: AsyncWebCrawler,
-        config: CrawlerRunConfig,
-    ) -> AsyncGenerator[CrawlResult, None]:
-        """
-        Streaming DFS mode.
-        Uses a stack to traverse URLs in DFS order and yields CrawlResults as they become available.
-        """
-        visited: Set[str] = set()
-        stack: List[Tuple[str, Optional[str], int]] = [(start_url, None, 0)]
-        depths: Dict[str, int] = {start_url: 0}
-
-        while stack and not self._cancel_event.is_set():
-            url, parent, depth = stack.pop()
-            if url in visited or depth > self.max_depth:
-                continue
-            visited.add(url)
-
-            stream_config = config.clone(deep_crawl_strategy=None, stream=True)
-            stream_gen = await crawler.arun_many(urls=[url], config=stream_config)
-            async for result in stream_gen:
-                result.metadata = result.metadata or {}
-                result.metadata["depth"] = depth
-                result.metadata["parent_url"] = parent
-                if self.url_scorer:
-                    result.metadata["score"] = self.url_scorer.score(url)
-                yield result
-
-                # Only count successful crawls toward max_pages limit
-                # and only discover links from successful crawls
-                if result.success:
-                    self._pages_crawled += 1
-                    
-                    new_links: List[Tuple[str, Optional[str]]] = []
-                    await self.link_discovery(result, url, depth, visited, new_links, depths)
-                    for new_url, new_parent in reversed(new_links):
-                        new_depth = depths.get(new_url, depth + 1)
-                        stack.append((new_url, new_parent, new_depth))

crawl4ai/deep_crawling/filters.py

@@ -1,648 +0,0 @@
-from abc import ABC, abstractmethod
-from typing import List, Pattern, Set, Union
-from urllib.parse import urlparse
-from array import array
-import re
-import logging
-from functools import lru_cache
-import fnmatch
-from dataclasses import dataclass
-import weakref
-import math
-from collections import defaultdict
-from typing import Dict
-from ..utils import HeadPeekr
-import asyncio
-import inspect
-
-
-@dataclass
-class FilterStats:
-    __slots__ = ("_counters",)
-
-    def __init__(self):
-        # Use array of unsigned ints for atomic operations
-        self._counters = array("I", [0, 0, 0])  # total, passed, rejected
-
-    @property
-    def total_urls(self):
-        return self._counters[0]
-
-    @property
-    def passed_urls(self):
-        return self._counters[1]
-
-    @property
-    def rejected_urls(self):
-        return self._counters[2]
-
-
-class URLFilter(ABC):
-    """Optimized base filter class"""
-
-    __slots__ = ("name", "stats", "_logger_ref")
-
-    def __init__(self, name: str = None):
-        self.name = name or self.__class__.__name__
-        self.stats = FilterStats()
-        # Lazy logger initialization using weakref
-        self._logger_ref = None
-
-    @property
-    def logger(self):
-        if self._logger_ref is None or self._logger_ref() is None:
-            logger = logging.getLogger(f"urlfilter.{self.name}")
-            self._logger_ref = weakref.ref(logger)
-        return self._logger_ref()
-
-    @abstractmethod
-    def apply(self, url: str) -> bool:
-        pass
-
-    def _update_stats(self, passed: bool):
-        # Use direct array index for speed
-        self.stats._counters[0] += 1  # total
-        self.stats._counters[1] += passed  # passed
-        self.stats._counters[2] += not passed  # rejected
-
-
-class FilterChain:
-    """Optimized filter chain"""
-
-    __slots__ = ("filters", "stats", "_logger_ref")
-
-    def __init__(self, filters: List[URLFilter] = None):
-        self.filters = tuple(filters or [])  # Immutable tuple for speed
-        self.stats = FilterStats()
-        self._logger_ref = None
-
-    @property
-    def logger(self):
-        if self._logger_ref is None or self._logger_ref() is None:
-            logger = logging.getLogger("urlfilter.chain")
-            self._logger_ref = weakref.ref(logger)
-        return self._logger_ref()
-
-    def add_filter(self, filter_: URLFilter) -> "FilterChain":
-        """Add a filter to the chain"""
-        self.filters.append(filter_)
-        return self  # Enable method chaining
-
-    async def apply(self, url: str) -> bool:
-        """Apply all filters concurrently when possible"""
-        self.stats._counters[0] += 1  # Total processed URLs
-
-        tasks = []
-        for f in self.filters:
-            result = f.apply(url)
-
-            if inspect.isawaitable(result):
-                tasks.append(result)  # Collect async tasks
-            elif not result:  # Sync rejection
-                self.stats._counters[2] += 1  # Sync rejected
-                return False
-
-        if tasks:
-            results = await asyncio.gather(*tasks)
-
-            # Count how many filters rejected
-            rejections = results.count(False)
-            self.stats._counters[2] += rejections
-
-            if not all(results):
-                return False  # Stop early if any filter rejected
-
-        self.stats._counters[1] += 1  # Passed
-        return True
-
-
-class URLPatternFilter(URLFilter):
-    """Pattern filter balancing speed and completeness"""
-
-    __slots__ = (
-        "_simple_suffixes",
-        "_simple_prefixes",
-        "_domain_patterns",
-        "_path_patterns",
-    )
-
-    PATTERN_TYPES = {
-        "SUFFIX": 1,  # *.html
-        "PREFIX": 2,  # /foo/*
-        "DOMAIN": 3,  # *.example.com
-        "PATH": 4,  # Everything else
-        "REGEX": 5,
-    }
-
-    def __init__(
-        self,
-        patterns: Union[str, Pattern, List[Union[str, Pattern]]],
-        use_glob: bool = True,
-    ):
-        super().__init__()
-        patterns = [patterns] if isinstance(patterns, (str, Pattern)) else patterns
-
-        self._simple_suffixes = set()
-        self._simple_prefixes = set()
-        self._domain_patterns = []
-        self._path_patterns = []
-
-        for pattern in patterns:
-            pattern_type = self._categorize_pattern(pattern)
-            self._add_pattern(pattern, pattern_type)
-
-    def _categorize_pattern(self, pattern: str) -> int:
-        """Categorize pattern for specialized handling"""
-        if not isinstance(pattern, str):
-            return self.PATTERN_TYPES["PATH"]
-
-        # Check if it's a regex pattern
-        if pattern.startswith("^") or pattern.endswith("$") or "\\d" in pattern:
-            return self.PATTERN_TYPES["REGEX"]
-
-        if pattern.count("*") == 1:
-            if pattern.startswith("*."):
-                return self.PATTERN_TYPES["SUFFIX"]
-            if pattern.endswith("/*"):
-                return self.PATTERN_TYPES["PREFIX"]
-
-        if "://" in pattern and pattern.startswith("*."):
-            return self.PATTERN_TYPES["DOMAIN"]
-
-        return self.PATTERN_TYPES["PATH"]
-
-    def _add_pattern(self, pattern: str, pattern_type: int):
-        """Add pattern to appropriate matcher"""
-        if pattern_type == self.PATTERN_TYPES["REGEX"]:
-            # For regex patterns, compile directly without glob translation
-            if isinstance(pattern, str) and (
-                pattern.startswith("^") or pattern.endswith("$") or "\\d" in pattern
-            ):
-                self._path_patterns.append(re.compile(pattern))
-                return
-        elif pattern_type == self.PATTERN_TYPES["SUFFIX"]:
-            self._simple_suffixes.add(pattern[2:])
-        elif pattern_type == self.PATTERN_TYPES["PREFIX"]:
-            self._simple_prefixes.add(pattern[:-2])
-        elif pattern_type == self.PATTERN_TYPES["DOMAIN"]:
-            self._domain_patterns.append(re.compile(pattern.replace("*.", r"[^/]+\.")))
-        else:
-            if isinstance(pattern, str):
-                # Handle complex glob patterns
-                if "**" in pattern:
-                    pattern = pattern.replace("**", ".*")
-                if "{" in pattern:
-                    # Convert {a,b} to (a|b)
-                    pattern = re.sub(
-                        r"\{([^}]+)\}",
-                        lambda m: f'({"|".join(m.group(1).split(","))})',
-                        pattern,
-                    )
-                pattern = fnmatch.translate(pattern)
-            self._path_patterns.append(
-                pattern if isinstance(pattern, Pattern) else re.compile(pattern)
-            )
-
-    @lru_cache(maxsize=10000)
-    def apply(self, url: str) -> bool:
-        """Hierarchical pattern matching"""
-        # Quick suffix check (*.html)
-        if self._simple_suffixes:
-            path = url.split("?")[0]
-            if path.split("/")[-1].split(".")[-1] in self._simple_suffixes:
-                self._update_stats(True)
-                return True
-
-        # Domain check
-        if self._domain_patterns:
-            for pattern in self._domain_patterns:
-                if pattern.match(url):
-                    self._update_stats(True)
-                    return True
-
-        # Prefix check (/foo/*)
-        if self._simple_prefixes:
-            path = url.split("?")[0]
-            if any(path.startswith(p) for p in self._simple_prefixes):
-                self._update_stats(True)
-                return True
-
-        # Complex patterns
-        if self._path_patterns:
-            if any(p.search(url) for p in self._path_patterns):
-                self._update_stats(True)
-                return True
-
-        self._update_stats(False)
-        return False
-
-
-class ContentTypeFilter(URLFilter):
-    """Optimized content type filter using fast lookups"""
-
-    __slots__ = ("allowed_types", "_ext_map", "_check_extension")
-
-    # Fast extension to mime type mapping
-    _MIME_MAP = {
-        # Text Formats
-        "txt": "text/plain",
-        "html": "text/html",
-        "htm": "text/html",
-        "xhtml": "application/xhtml+xml",
-        "css": "text/css",
-        "csv": "text/csv",
-        "ics": "text/calendar",
-        "js": "application/javascript",
-        # Images
-        "bmp": "image/bmp",
-        "gif": "image/gif",
-        "jpeg": "image/jpeg",
-        "jpg": "image/jpeg",
-        "png": "image/png",
-        "svg": "image/svg+xml",
-        "tiff": "image/tiff",
-        "ico": "image/x-icon",
-        "webp": "image/webp",
-        # Audio
-        "mp3": "audio/mpeg",
-        "wav": "audio/wav",
-        "ogg": "audio/ogg",
-        "m4a": "audio/mp4",
-        "aac": "audio/aac",
-        # Video
-        "mp4": "video/mp4",
-        "mpeg": "video/mpeg",
-        "webm": "video/webm",
-        "avi": "video/x-msvideo",
-        "mov": "video/quicktime",
-        "flv": "video/x-flv",
-        "wmv": "video/x-ms-wmv",
-        "mkv": "video/x-matroska",
-        # Applications
-        "json": "application/json",
-        "xml": "application/xml",
-        "pdf": "application/pdf",
-        "zip": "application/zip",
-        "gz": "application/gzip",
-        "tar": "application/x-tar",
-        "rar": "application/vnd.rar",
-        "7z": "application/x-7z-compressed",
-        "exe": "application/vnd.microsoft.portable-executable",
-        "msi": "application/x-msdownload",
-        # Fonts
-        "woff": "font/woff",
-        "woff2": "font/woff2",
-        "ttf": "font/ttf",
-        "otf": "font/otf",
-        # Microsoft Office
-        "doc": "application/msword",
-        "dot": "application/msword",
-        "docx": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
-        "xlsx": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
-        "xls": "application/vnd.ms-excel",
-        "ppt": "application/vnd.ms-powerpoint",
-        "pptx": "application/vnd.openxmlformats-officedocument.presentationml.presentation",
-        # OpenDocument Formats
-        "odt": "application/vnd.oasis.opendocument.text",
-        "ods": "application/vnd.oasis.opendocument.spreadsheet",
-        "odp": "application/vnd.oasis.opendocument.presentation",
-        # Archives
-        "tar.gz": "application/gzip",
-        "tgz": "application/gzip",
-        "bz2": "application/x-bzip2",
-        # Others
-        "rtf": "application/rtf",
-        "apk": "application/vnd.android.package-archive",
-        "epub": "application/epub+zip",
-        "jar": "application/java-archive",
-        "swf": "application/x-shockwave-flash",
-        "midi": "audio/midi",
-        "mid": "audio/midi",
-        "ps": "application/postscript",
-        "ai": "application/postscript",
-        "eps": "application/postscript",
-        # Custom or less common
-        "bin": "application/octet-stream",
-        "dmg": "application/x-apple-diskimage",
-        "iso": "application/x-iso9660-image",
-        "deb": "application/x-debian-package",
-        "rpm": "application/x-rpm",
-        "sqlite": "application/vnd.sqlite3",
-        # Placeholder
-        "unknown": "application/octet-stream",  # Fallback for unknown file types
-    }
-
-    @staticmethod
-    @lru_cache(maxsize=1000)
-    def _extract_extension(url: str) -> str:
-        """Extracts file extension from a URL."""
-        # Remove scheme (http://, https://) if present
-        if "://" in url:
-            url = url.split("://", 1)[-1]  # Get everything after '://'
-
-        # Remove domain (everything up to the first '/')
-        path_start = url.find("/")
-        path = url[path_start:] if path_start != -1 else ""
-
-        # Extract last filename in path
-        filename = path.rsplit("/", 1)[-1] if "/" in path else ""
-
-        # Extract and validate extension
-        if "." not in filename:
-            return ""
-
-        return filename.rpartition(".")[-1].lower()
-
-    def __init__(
-        self,
-        allowed_types: Union[str, List[str]],
-        check_extension: bool = True,
-        ext_map: Dict[str, str] = _MIME_MAP,
-    ):
-        super().__init__()
-        # Normalize and store as frozenset for fast lookup
-        self.allowed_types = frozenset(
-            t.lower()
-            for t in (
-                allowed_types if isinstance(allowed_types, list) else [allowed_types]
-            )
-        )
-        self._check_extension = check_extension
-
-        # Pre-compute extension map for allowed types
-        self._ext_map = frozenset(
-            ext
-            for ext, mime in self._MIME_MAP.items()
-            if any(allowed in mime for allowed in self.allowed_types)
-        )
-
-    @lru_cache(maxsize=1000)
-    def _check_url_cached(self, url: str) -> bool:
-        """Cached URL checking"""
-        if not self._check_extension:
-            return True
-        ext = self._extract_extension(url)
-        if not ext:
-            return True
-
-        return ext in self._ext_map
-
-    def apply(self, url: str) -> bool:
-        """Fast extension check with caching"""
-        result = self._check_url_cached(url)
-        self._update_stats(result)
-        return result
-
-
-class DomainFilter(URLFilter):
-    """Optimized domain filter with fast lookups and caching"""
-
-    __slots__ = ("_allowed_domains", "_blocked_domains", "_domain_cache")
-
-    # Regex for fast domain extraction
-    _DOMAIN_REGEX = re.compile(r"://([^/]+)")
-
-    def __init__(
-        self,
-        allowed_domains: Union[str, List[str]] = None,
-        blocked_domains: Union[str, List[str]] = None,
-    ):
-        super().__init__()
-
-        # Convert inputs to frozensets for immutable, fast lookups
-        self._allowed_domains = (
-            frozenset(self._normalize_domains(allowed_domains))
-            if allowed_domains
-            else None
-        )
-        self._blocked_domains = (
-            frozenset(self._normalize_domains(blocked_domains))
-            if blocked_domains
-            else frozenset()
-        )
-
-    @staticmethod
-    def _normalize_domains(domains: Union[str, List[str]]) -> Set[str]:
-        """Fast domain normalization"""
-        if isinstance(domains, str):
-            return {domains.lower()}
-        return {d.lower() for d in domains}
-
-    @staticmethod
-    @lru_cache(maxsize=10000)
-    def _extract_domain(url: str) -> str:
-        """Ultra-fast domain extraction with regex and caching"""
-        match = DomainFilter._DOMAIN_REGEX.search(url)
-        return match.group(1).lower() if match else ""
-
-    def apply(self, url: str) -> bool:
-        """Optimized domain checking with early returns"""
-        # Skip processing if no filters
-        if not self._blocked_domains and self._allowed_domains is None:
-            self._update_stats(True)
-            return True
-
-        domain = self._extract_domain(url)
-
-        # Early return for blocked domains
-        if domain in self._blocked_domains:
-            self._update_stats(False)
-            return False
-
-        # If no allowed domains specified, accept all non-blocked
-        if self._allowed_domains is None:
-            self._update_stats(True)
-            return True
-
-        # Final allowed domains check
-        result = domain in self._allowed_domains
-        self._update_stats(result)
-        return result
-
-
-class ContentRelevanceFilter(URLFilter):
-    """BM25-based relevance filter using head section content"""
-
-    __slots__ = ("query_terms", "threshold", "k1", "b", "avgdl")
-
-    def __init__(
-        self,
-        query: str,
-        threshold: float,
-        k1: float = 1.2,
-        b: float = 0.75,
-        avgdl: int = 1000,
-    ):
-        super().__init__(name="BM25RelevanceFilter")
-        self.query_terms = self._tokenize(query)
-        self.threshold = threshold
-        self.k1 = k1  # TF saturation parameter
-        self.b = b  # Length normalization parameter
-        self.avgdl = avgdl  # Average document length (empirical value)
-
-    async def apply(self, url: str) -> bool:
-        head_content = await HeadPeekr.peek_html(url)
-        if not head_content:
-            self._update_stats(False)
-            return False
-
-        # Field extraction with weighting
-        fields = {
-            "title": HeadPeekr.get_title(head_content) or "",
-            "meta": HeadPeekr.extract_meta_tags(head_content),
-        }
-        doc_text = self._build_document(fields)
-
-        score = self._bm25(doc_text)
-        decision = score >= self.threshold
-        self._update_stats(decision)
-        return decision
-
-    def _build_document(self, fields: Dict) -> str:
-        """Weighted document construction"""
-        return " ".join(
-            [
-                fields["title"] * 3,  # Title weight
-                fields["meta"].get("description", "") * 2,
-                fields["meta"].get("keywords", ""),
-                " ".join(fields["meta"].values()),
-            ]
-        )
-
-    def _tokenize(self, text: str) -> List[str]:
-        """Fast case-insensitive tokenization"""
-        return text.lower().split()
-
-    def _bm25(self, document: str) -> float:
-        """Optimized BM25 implementation for head sections"""
-        doc_terms = self._tokenize(document)
-        doc_len = len(doc_terms)
-        tf = defaultdict(int)
-
-        for term in doc_terms:
-            tf[term] += 1
-
-        score = 0.0
-        for term in set(self.query_terms):
-            term_freq = tf[term]
-            idf = math.log((1 + 1) / (term_freq + 0.5) + 1)  # Simplified IDF
-            numerator = term_freq * (self.k1 + 1)
-            denominator = term_freq + self.k1 * (
-                1 - self.b + self.b * (doc_len / self.avgdl)
-            )
-            score += idf * (numerator / denominator)
-
-        return score
-
-
-class SEOFilter(URLFilter):
-    """Quantitative SEO quality assessment filter using head section analysis"""
-
-    __slots__ = ("threshold", "_weights", "_kw_patterns")
-
-    # Based on SEMrush/Google ranking factors research
-    DEFAULT_WEIGHTS = {
-        "title_length": 0.15,
-        "title_kw": 0.18,
-        "meta_description": 0.12,
-        "canonical": 0.10,
-        "robot_ok": 0.20,  # Most critical factor
-        "schema_org": 0.10,
-        "url_quality": 0.15,
-    }
-
-    def __init__(
-        self,
-        threshold: float = 0.65,
-        keywords: List[str] = None,
-        weights: Dict[str, float] = None,
-    ):
-        super().__init__(name="SEOFilter")
-        self.threshold = threshold
-        self._weights = weights or self.DEFAULT_WEIGHTS
-        self._kw_patterns = (
-            re.compile(
-                r"\b({})\b".format("|".join(map(re.escape, keywords or []))), re.I
-            )
-            if keywords
-            else None
-        )
-
-    async def apply(self, url: str) -> bool:
-        head_content = await HeadPeekr.peek_html(url)
-        if not head_content:
-            self._update_stats(False)
-            return False
-
-        meta = HeadPeekr.extract_meta_tags(head_content)
-        title = HeadPeekr.get_title(head_content) or ""
-        parsed_url = urlparse(url)
-
-        scores = {
-            "title_length": self._score_title_length(title),
-            "title_kw": self._score_keyword_presence(title),
-            "meta_description": self._score_meta_description(
-                meta.get("description", "")
-            ),
-            "canonical": self._score_canonical(meta.get("canonical"), url),
-            "robot_ok": 1.0 if "noindex" not in meta.get("robots", "") else 0.0,
-            "schema_org": self._score_schema_org(head_content),
-            "url_quality": self._score_url_quality(parsed_url),
-        }
-
-        total_score = sum(
-            weight * scores[factor] for factor, weight in self._weights.items()
-        )
-
-        decision = total_score >= self.threshold
-        self._update_stats(decision)
-        return decision
-
-    def _score_title_length(self, title: str) -> float:
-        length = len(title)
-        if 50 <= length <= 60:
-            return 1.0
-        if 40 <= length < 50 or 60 < length <= 70:
-            return 0.7
-        return 0.3  # Poor length
-
-    def _score_keyword_presence(self, text: str) -> float:
-        if not self._kw_patterns:
-            return 0.0
-        matches = len(self._kw_patterns.findall(text))
-        return min(matches * 0.3, 1.0)  # Max 3 matches
-
-    def _score_meta_description(self, desc: str) -> float:
-        length = len(desc)
-        if 140 <= length <= 160:
-            return 1.0
-        return 0.5 if 120 <= length <= 200 else 0.2
-
-    def _score_canonical(self, canonical: str, original: str) -> float:
-        if not canonical:
-            return 0.5  # Neutral score
-        return 1.0 if canonical == original else 0.2
-
-    def _score_schema_org(self, html: str) -> float:
-        # Detect any schema.org markup in head
-        return (
-            1.0
-            if re.search(r'<script[^>]+type=["\']application/ld\+json', html)
-            else 0.0
-        )
-
-    def _score_url_quality(self, parsed_url) -> float:
-        score = 1.0
-        path = parsed_url.path.lower()
-
-        # Penalty factors
-        if len(path) > 80:
-            score *= 0.7
-        if re.search(r"\d{4}", path):
-            score *= 0.8  # Numbers in path
-        if parsed_url.query:
-            score *= 0.6  # URL parameters
-        if "_" in path:
-            score *= 0.9  # Underscores vs hyphens
-
-        return score

crawl4ai/deep_crawling/scorers.py

@@ -1,519 +0,0 @@
-from abc import ABC, abstractmethod
-from typing import List, Dict, Optional
-from dataclasses import dataclass
-from urllib.parse import urlparse, unquote
-import re
-import logging
-from functools import lru_cache
-from array import array
-import ctypes
-import platform
-PLATFORM = platform.system()
-
-# Pre-computed scores for common year differences
-_SCORE_LOOKUP = [1.0, 0.5, 0.3333333333333333, 0.25]
-
-# Pre-computed scores for common year differences
-_FRESHNESS_SCORES = [
-   1.0,    # Current year
-   0.9,    # Last year
-   0.8,    # 2 years ago
-   0.7,    # 3 years ago
-   0.6,    # 4 years ago
-   0.5,    # 5 years ago
-]
-
-class ScoringStats:
-    __slots__ = ('_urls_scored', '_total_score', '_min_score', '_max_score')
-    
-    def __init__(self):
-        self._urls_scored = 0
-        self._total_score = 0.0
-        self._min_score = None  # Lazy initialization
-        self._max_score = None
-    
-    def update(self, score: float) -> None:
-        """Optimized update with minimal operations"""
-        self._urls_scored += 1
-        self._total_score += score
-        
-        # Lazy min/max tracking - only if actually accessed
-        if self._min_score is not None:
-            if score < self._min_score:
-                self._min_score = score
-        if self._max_score is not None:
-            if score > self._max_score:
-                self._max_score = score
-                
-    def get_average(self) -> float:
-        """Direct calculation instead of property"""
-        return self._total_score / self._urls_scored if self._urls_scored else 0.0
-    
-    def get_min(self) -> float:
-        """Lazy min calculation"""
-        if self._min_score is None:
-            self._min_score = self._total_score / self._urls_scored if self._urls_scored else 0.0
-        return self._min_score
-        
-    def get_max(self) -> float:
-        """Lazy max calculation"""
-        if self._max_score is None:
-            self._max_score = self._total_score / self._urls_scored if self._urls_scored else 0.0
-        return self._max_score
-class URLScorer(ABC):
-    __slots__ = ('_weight', '_stats')
-    
-    def __init__(self, weight: float = 1.0):
-        # Store weight directly as float32 for memory efficiency
-        self._weight = ctypes.c_float(weight).value
-        self._stats = ScoringStats()
-    
-    @abstractmethod
-    def _calculate_score(self, url: str) -> float:
-        """Calculate raw score for URL."""
-        pass
-    
-    def score(self, url: str) -> float:
-        """Calculate weighted score with minimal overhead."""
-        score = self._calculate_score(url) * self._weight
-        self._stats.update(score)
-        return score
-    
-    @property
-    def stats(self):
-        """Access to scoring statistics."""
-        return self._stats
-    
-    @property
-    def weight(self):
-        return self._weight
-
-class CompositeScorer(URLScorer):
-    __slots__ = ('_scorers', '_normalize', '_weights_array', '_score_array')
-    
-    def __init__(self, scorers: List[URLScorer], normalize: bool = True):
-        """Initialize composite scorer combining multiple scoring strategies.
-        
-        Optimized for:
-        - Fast parallel scoring
-        - Memory efficient score aggregation
-        - Quick short-circuit conditions
-        - Pre-allocated arrays
-        
-        Args:
-            scorers: List of scoring strategies to combine
-            normalize: Whether to normalize final score by scorer count
-        """
-        super().__init__(weight=1.0)
-        self._scorers = scorers
-        self._normalize = normalize
-        
-        # Pre-allocate arrays for scores and weights
-        self._weights_array = array('f', [s.weight for s in scorers])
-        self._score_array = array('f', [0.0] * len(scorers))
-
-    @lru_cache(maxsize=10000)
-    def _calculate_score(self, url: str) -> float:
-        """Calculate combined score from all scoring strategies.
-        
-        Uses:
-        1. Pre-allocated arrays for scores
-        2. Short-circuit on zero scores
-        3. Optimized normalization
-        4. Vectorized operations where possible
-        
-        Args:
-            url: URL to score
-            
-        Returns:
-            Combined and optionally normalized score
-        """
-        total_score = 0.0
-        scores = self._score_array
-        
-        # Get scores from all scorers
-        for i, scorer in enumerate(self._scorers):
-            # Use public score() method which applies weight
-            scores[i] = scorer.score(url)
-            total_score += scores[i]
-            
-        # Normalize if requested
-        if self._normalize and self._scorers:
-            count = len(self._scorers)
-            return total_score / count
-            
-        return total_score
-
-    def score(self, url: str) -> float:
-        """Public scoring interface with stats tracking.
-        
-        Args:
-            url: URL to score
-            
-        Returns:
-            Final combined score
-        """
-        score = self._calculate_score(url)
-        self.stats.update(score)
-        return score
-
-class KeywordRelevanceScorer(URLScorer):
-    __slots__ = ('_weight', '_stats', '_keywords', '_case_sensitive')
-    
-    def __init__(self, keywords: List[str], weight: float = 1.0, case_sensitive: bool = False):
-        super().__init__(weight=weight)
-        self._case_sensitive = case_sensitive
-        # Pre-process keywords once
-        self._keywords = [k if case_sensitive else k.lower() for k in keywords]
-    
-    @lru_cache(maxsize=10000)
-    def _url_bytes(self, url: str) -> bytes:
-        """Cache decoded URL bytes"""
-        return url.encode('utf-8') if self._case_sensitive else url.lower().encode('utf-8')
-    
-    
-    def _calculate_score(self, url: str) -> float:
-        """Fast string matching without regex or byte conversion"""
-        if not self._case_sensitive:
-            url = url.lower()
-            
-        matches = sum(1 for k in self._keywords if k in url)
-        
-        # Fast return paths
-        if not matches:
-            return 0.0
-        if matches == len(self._keywords):
-            return 1.0
-            
-        return matches / len(self._keywords)
-
-class PathDepthScorer(URLScorer):
-    __slots__ = ('_weight', '_stats', '_optimal_depth')  # Remove _url_cache
-    
-    def __init__(self, optimal_depth: int = 3, weight: float = 1.0):
-        super().__init__(weight=weight)
-        self._optimal_depth = optimal_depth
-
-    @staticmethod
-    @lru_cache(maxsize=10000)
-    def _quick_depth(path: str) -> int:
-        """Ultra fast path depth calculation.
-        
-        Examples:
-            - "http://example.com" -> 0  # No path segments
-            - "http://example.com/" -> 0  # Empty path
-            - "http://example.com/a" -> 1
-            - "http://example.com/a/b" -> 2
-        """
-        if not path or path == '/':
-            return 0
-            
-        if '/' not in path:
-            return 0
-            
-        depth = 0
-        last_was_slash = True
-        
-        for c in path:
-            if c == '/':
-                if not last_was_slash:
-                    depth += 1
-                last_was_slash = True
-            else:
-                last_was_slash = False
-                
-        if not last_was_slash:
-            depth += 1
-            
-        return depth
-
-    @lru_cache(maxsize=10000)  # Cache the whole calculation
-    def _calculate_score(self, url: str) -> float:
-        pos = url.find('/', url.find('://') + 3)
-        if pos == -1:
-            depth = 0
-        else:
-            depth = self._quick_depth(url[pos:])
-            
-        # Use lookup table for common distances
-        distance = depth - self._optimal_depth
-        distance = distance if distance >= 0 else -distance  # Faster than abs()
-        
-        if distance < 4:
-            return _SCORE_LOOKUP[distance]
-            
-        return 1.0 / (1.0 + distance)                                             
-
-class ContentTypeScorer(URLScorer):
-    __slots__ = ('_weight', '_exact_types', '_regex_types')
-
-    def __init__(self, type_weights: Dict[str, float], weight: float = 1.0):
-        """Initialize scorer with type weights map.
-        
-        Args:
-            type_weights: Dict mapping file extensions/patterns to scores (e.g. {'.html$': 1.0})
-            weight: Overall weight multiplier for this scorer
-        """
-        super().__init__(weight=weight)
-        self._exact_types = {}  # Fast lookup for simple extensions
-        self._regex_types = []  # Fallback for complex patterns
-        
-        # Split into exact vs regex matchers for performance
-        for pattern, score in type_weights.items():
-            if pattern.startswith('.') and pattern.endswith('$'):
-                ext = pattern[1:-1]
-                self._exact_types[ext] = score
-            else:
-                self._regex_types.append((re.compile(pattern), score))
-                
-        # Sort complex patterns by score for early exit
-        self._regex_types.sort(key=lambda x: -x[1])
-
-    @staticmethod
-    @lru_cache(maxsize=10000)
-    def _quick_extension(url: str) -> str:
-        """Extract file extension ultra-fast without regex/splits.
-        
-        Handles:
-        - Basic extensions: "example.html" -> "html"
-        - Query strings: "page.php?id=1" -> "php" 
-        - Fragments: "doc.pdf#page=1" -> "pdf"
-        - Path params: "file.jpg;width=100" -> "jpg"
-        
-        Args:
-            url: URL to extract extension from
-            
-        Returns:
-            Extension without dot, or empty string if none found
-        """
-        pos = url.rfind('.')
-        if pos == -1:
-            return ''
-        
-        # Find first non-alphanumeric char after extension
-        end = len(url)
-        for i in range(pos + 1, len(url)):
-            c = url[i]
-            # Stop at query string, fragment, path param or any non-alphanumeric
-            if c in '?#;' or not c.isalnum():
-                end = i
-                break
-                
-        return url[pos + 1:end].lower()
-
-    @lru_cache(maxsize=10000)
-    def _calculate_score(self, url: str) -> float:
-        """Calculate content type score for URL.
-        
-        Uses staged approach:
-        1. Try exact extension match (fast path)
-        2. Fall back to regex patterns if needed
-        
-        Args:
-            url: URL to score
-            
-        Returns:
-            Score between 0.0 and 1.0 * weight
-        """
-        # Fast path: direct extension lookup
-        ext = self._quick_extension(url)
-        if ext:
-            score = self._exact_types.get(ext, None)
-            if score is not None:
-                return score
-                
-        # Slow path: regex patterns
-        for pattern, score in self._regex_types:
-            if pattern.search(url):
-                return score
-
-        return 0.0
-
-class FreshnessScorer(URLScorer):
-    __slots__ = ('_weight', '_date_pattern', '_current_year')
-
-    def __init__(self, weight: float = 1.0, current_year: int = 2024):
-        """Initialize freshness scorer.
-        
-        Extracts and scores dates from URLs using format:
-        - YYYY/MM/DD 
-        - YYYY-MM-DD
-        - YYYY_MM_DD
-        - YYYY (year only)
-        
-        Args:
-            weight: Score multiplier
-            current_year: Year to calculate freshness against (default 2024)
-        """
-        super().__init__(weight=weight)
-        self._current_year = current_year
-        
-        # Combined pattern for all date formats
-        # Uses non-capturing groups (?:) and alternation
-        self._date_pattern = re.compile(
-            r'(?:/'  # Path separator
-            r'|[-_])'  # or date separators
-            r'((?:19|20)\d{2})'  # Year group (1900-2099)
-            r'(?:'  # Optional month/day group
-            r'(?:/|[-_])'  # Date separator  
-            r'(?:\d{2})'  # Month
-            r'(?:'  # Optional day
-            r'(?:/|[-_])'  # Date separator
-            r'(?:\d{2})'  # Day
-            r')?'  # Day is optional
-            r')?'  # Month/day group is optional
-        )
-
-    @lru_cache(maxsize=10000)
-    def _extract_year(self, url: str) -> Optional[int]:
-        """Extract the most recent year from URL.
-        
-        Args:
-            url: URL to extract year from
-            
-        Returns:
-            Year as int or None if no valid year found
-        """
-        matches = self._date_pattern.finditer(url)
-        latest_year = None
-        
-        # Find most recent year
-        for match in matches:
-            year = int(match.group(1))
-            if (year <= self._current_year and  # Sanity check
-                (latest_year is None or year > latest_year)):
-                latest_year = year
-                
-        return latest_year
-
-    @lru_cache(maxsize=10000) 
-    def _calculate_score(self, url: str) -> float:
-        """Calculate freshness score based on URL date.
-        
-        More recent years score higher. Uses pre-computed scoring
-        table for common year differences.
-        
-        Args:
-            url: URL to score
-            
-        Returns:
-            Score between 0.0 and 1.0 * weight
-        """
-        year = self._extract_year(url)
-        if year is None:
-            return 0.5  # Default score
-            
-        # Use lookup table for common year differences
-        year_diff = self._current_year - year
-        if year_diff < len(_FRESHNESS_SCORES):
-            return _FRESHNESS_SCORES[year_diff]
-            
-        # Fallback calculation for older content
-        return max(0.1, 1.0 - year_diff * 0.1)
-
-class DomainAuthorityScorer(URLScorer):
-    __slots__ = ('_weight', '_domain_weights', '_default_weight', '_top_domains')
-    
-    def __init__(
-        self,
-        domain_weights: Dict[str, float],
-        default_weight: float = 0.5,
-        weight: float = 1.0,
-    ):
-        """Initialize domain authority scorer.
-        
-        Args:
-            domain_weights: Dict mapping domains to authority scores
-            default_weight: Score for unknown domains
-            weight: Overall scorer weight multiplier
-            
-        Example:
-            {
-                'python.org': 1.0,
-                'github.com': 0.9,
-                'medium.com': 0.7
-            }
-        """
-        super().__init__(weight=weight)
-        
-        # Pre-process domains for faster lookup
-        self._domain_weights = {
-            domain.lower(): score 
-            for domain, score in domain_weights.items()
-        }
-        self._default_weight = default_weight
-        
-        # Cache top domains for fast path
-        self._top_domains = {
-            domain: score
-            for domain, score in sorted(
-                domain_weights.items(), 
-                key=lambda x: -x[1]
-            )[:5]  # Keep top 5 highest scoring domains
-        }
-
-    @staticmethod
-    @lru_cache(maxsize=10000)
-    def _extract_domain(url: str) -> str:
-        """Extract domain from URL ultra-fast.
-        
-        Handles:
-        - Basic domains: "example.com"
-        - Subdomains: "sub.example.com" 
-        - Ports: "example.com:8080"
-        - IPv4: "192.168.1.1"
-        
-        Args:
-            url: Full URL to extract domain from
-            
-        Returns:
-            Lowercase domain without port
-        """
-        # Find domain start
-        start = url.find('://') 
-        if start == -1:
-            start = 0
-        else:
-            start += 3
-            
-        # Find domain end
-        end = url.find('/', start)
-        if end == -1:
-            end = url.find('?', start)
-            if end == -1:
-                end = url.find('#', start)
-                if end == -1:
-                    end = len(url)
-                    
-        # Extract domain and remove port
-        domain = url[start:end]
-        port_idx = domain.rfind(':')
-        if port_idx != -1:
-            domain = domain[:port_idx]
-            
-        return domain.lower()
-
-    @lru_cache(maxsize=10000)
-    def _calculate_score(self, url: str) -> float:
-        """Calculate domain authority score.
-        
-        Uses staged approach:
-        1. Check top domains (fastest)
-        2. Check full domain weights
-        3. Return default weight
-        
-        Args:
-            url: URL to score
-            
-        Returns:
-            Authority score between 0.0 and 1.0 * weight
-        """
-        domain = self._extract_domain(url)
-        
-        # Fast path: check top domains first
-        score = self._top_domains.get(domain)
-        if score is not None:
-            return score
-            
-        # Regular path: check all domains
-        return self._domain_weights.get(domain, self._default_weight)

crawl4ai/docker_client.py

@@ -1,170 +0,0 @@
-from typing import List, Optional, Union, AsyncGenerator, Dict, Any
-import httpx
-import json
-from urllib.parse import urljoin
-import asyncio
-
-from .async_configs import BrowserConfig, CrawlerRunConfig
-from .models import CrawlResult
-from .async_logger import AsyncLogger, LogLevel
-
-
-class Crawl4aiClientError(Exception):
-    """Base exception for Crawl4ai Docker client errors."""
-    pass
-
-
-class ConnectionError(Crawl4aiClientError):
-    """Raised when connection to the Docker server fails."""
-    pass
-
-
-class RequestError(Crawl4aiClientError):
-    """Raised when the server returns an error response."""
-    pass
-
-
-class Crawl4aiDockerClient:
-    """Client for interacting with Crawl4AI Docker server with token authentication."""
-    
-    def __init__(
-        self,
-        base_url: str = "http://localhost:8000",
-        timeout: float = 30.0,
-        verify_ssl: bool = True,
-        verbose: bool = True,
-        log_file: Optional[str] = None
-    ):
-        self.base_url = base_url.rstrip('/')
-        self.timeout = timeout
-        self.logger = AsyncLogger(log_file=log_file, log_level=LogLevel.DEBUG, verbose=verbose)
-        self._http_client = httpx.AsyncClient(
-            timeout=timeout,
-            verify=verify_ssl,
-            headers={"Content-Type": "application/json"}
-        )
-        self._token: Optional[str] = None
-
-    async def authenticate(self, email: str) -> None:
-        """Authenticate with the server and store the token."""
-        url = urljoin(self.base_url, "/token")
-        try:
-            self.logger.info(f"Authenticating with email: {email}", tag="AUTH")
-            response = await self._http_client.post(url, json={"email": email})
-            response.raise_for_status()
-            data = response.json()
-            self._token = data["access_token"]
-            self._http_client.headers["Authorization"] = f"Bearer {self._token}"
-            self.logger.success("Authentication successful", tag="AUTH")
-        except (httpx.RequestError, httpx.HTTPStatusError) as e:
-            error_msg = f"Authentication failed: {str(e)}"
-            self.logger.error(error_msg, tag="ERROR")
-            raise ConnectionError(error_msg)
-
-    async def _check_server(self) -> None:
-        """Check if server is reachable, raising an error if not."""
-        try:
-            await self._http_client.get(urljoin(self.base_url, "/health"))
-            self.logger.success(f"Connected to {self.base_url}", tag="READY")
-        except httpx.RequestError as e:
-            self.logger.error(f"Server unreachable: {str(e)}", tag="ERROR")
-            raise ConnectionError(f"Cannot connect to server: {str(e)}")
-
-    def _prepare_request(self, urls: List[str], browser_config: Optional[BrowserConfig] = None, 
-                       crawler_config: Optional[CrawlerRunConfig] = None) -> Dict[str, Any]:
-        """Prepare request data from configs."""
-        return {
-            "urls": urls,
-            "browser_config": browser_config.dump() if browser_config else {},
-            "crawler_config": crawler_config.dump() if crawler_config else {}
-        }
-
-    async def _request(self, method: str, endpoint: str, **kwargs) -> httpx.Response:
-        """Make an HTTP request with error handling."""
-        url = urljoin(self.base_url, endpoint)
-        try:
-            response = await self._http_client.request(method, url, **kwargs)
-            response.raise_for_status()
-            return response
-        except httpx.TimeoutException as e:
-            raise ConnectionError(f"Request timed out: {str(e)}")
-        except httpx.RequestError as e:
-            raise ConnectionError(f"Failed to connect: {str(e)}")
-        except httpx.HTTPStatusError as e:
-            error_msg = (e.response.json().get("detail", str(e)) 
-                        if "application/json" in e.response.headers.get("content-type", "") 
-                        else str(e))
-            raise RequestError(f"Server error {e.response.status_code}: {error_msg}")
-
-    async def crawl(
-        self,
-        urls: List[str],
-        browser_config: Optional[BrowserConfig] = None,
-        crawler_config: Optional[CrawlerRunConfig] = None
-    ) -> Union[CrawlResult, List[CrawlResult], AsyncGenerator[CrawlResult, None]]:
-        """Execute a crawl operation."""
-        if not self._token:
-            raise Crawl4aiClientError("Authentication required. Call authenticate() first.")
-        await self._check_server()
-        
-        data = self._prepare_request(urls, browser_config, crawler_config)
-        is_streaming = crawler_config and crawler_config.stream
-        
-        self.logger.info(f"Crawling {len(urls)} URLs {'(streaming)' if is_streaming else ''}", tag="CRAWL")
-        
-        if is_streaming:
-            async def stream_results() -> AsyncGenerator[CrawlResult, None]:
-                async with self._http_client.stream("POST", f"{self.base_url}/crawl/stream", json=data) as response:
-                    response.raise_for_status()
-                    async for line in response.aiter_lines():
-                        if line.strip():
-                            result = json.loads(line)
-                            if "error" in result:
-                                self.logger.error_status(url=result.get("url", "unknown"), error=result["error"])
-                                continue
-                            self.logger.url_status(url=result.get("url", "unknown"), success=True, timing=result.get("timing", 0.0))
-                            if result.get("status") == "completed":
-                                continue
-                            else:
-                                yield CrawlResult(**result)
-            return stream_results()
-        
-        response = await self._request("POST", "/crawl", json=data)
-        result_data = response.json()
-        if not result_data.get("success", False):
-            raise RequestError(f"Crawl failed: {result_data.get('msg', 'Unknown error')}")
-        
-        results = [CrawlResult(**r) for r in result_data.get("results", [])]
-        self.logger.success(f"Crawl completed with {len(results)} results", tag="CRAWL")
-        return results[0] if len(results) == 1 else results
-
-    async def get_schema(self) -> Dict[str, Any]:
-        """Retrieve configuration schemas."""
-        if not self._token:
-            raise Crawl4aiClientError("Authentication required. Call authenticate() first.")
-        response = await self._request("GET", "/schema")
-        return response.json()
-
-    async def close(self) -> None:
-        """Close the HTTP client session."""
-        self.logger.info("Closing client", tag="CLOSE")
-        await self._http_client.aclose()
-
-    async def __aenter__(self) -> "Crawl4aiDockerClient":
-        return self
-
-    async def __aexit__(self, exc_type: Optional[type], exc_val: Optional[Exception], exc_tb: Optional[Any]) -> None:
-        await self.close()
-
-
-# Example usage
-async def main():
-    async with Crawl4aiDockerClient(verbose=True) as client:
-        await client.authenticate("user@example.com")
-        result = await client.crawl(["https://example.com"])
-        print(result)
-        schema = await client.get_schema()
-        print(schema)
-
-if __name__ == "__main__":
-    asyncio.run(main())

crawl4ai/extraction_strategy.py

@@ -1,5 +1,4 @@
 from abc import ABC, abstractmethod
-import inspect
 from typing import Any, List, Dict, Optional
 from concurrent.futures import ThreadPoolExecutor, as_completed
 import json
@@ -22,9 +21,6 @@ from .utils import (
     extract_xml_data,
     split_and_parse_json_objects,
     sanitize_input_encode,
-    chunk_documents,
-    merge_chunks,
-    advanced_split,
 )
 from .models import * # noqa: F403
 
@@ -497,35 +493,20 @@ class LLMExtractionStrategy(ExtractionStrategy):
         usages: List of individual token usages.
         total_usage: Accumulated token usage.
     """
-    _UNWANTED_PROPS = {
-            'provider' : 'Instead, use llmConfig=LlmConfig(provider="...")',
-            'api_token' : 'Instead, use llmConfig=LlMConfig(api_token="...")',
-            'base_url' : 'Instead, use llmConfig=LlmConfig(base_url="...")',
-            'api_base' : 'Instead, use llmConfig=LlmConfig(base_url="...")',
-        }
+
     def __init__(
         self,
-        llmConfig: 'LLMConfig' = None,
-        instruction: str = None,
         provider: str = DEFAULT_PROVIDER,
         api_token: Optional[str] = None,
-        base_url: str = None,
-        api_base: str = None,
+        instruction: str = None,
         schema: Dict = None,
         extraction_type="block",
-        chunk_token_threshold=CHUNK_TOKEN_THRESHOLD,
-        overlap_rate=OVERLAP_RATE,
-        word_token_rate=WORD_TOKEN_RATE,
-        apply_chunking=True,
-        input_format: str = "markdown",
-        verbose=False,
         **kwargs,
     ):
         """
         Initialize the strategy with clustering parameters.
 
         Args:
-            llmConfig: The LLM configuration object.
             provider: The provider to use for extraction. It follows the format <provider_name>/<model_name>, e.g., "ollama/llama3.3".
             api_token: The API token for the provider.
             instruction: The instruction to use for the LLM model.
@@ -543,40 +524,40 @@ class LLMExtractionStrategy(ExtractionStrategy):
             total_usage: Accumulated token usage.
 
         """
-        super().__init__( input_format=input_format, **kwargs)
-        self.llmConfig = llmConfig
+        super().__init__(**kwargs)
         self.provider = provider
-        self.api_token = api_token
-        self.base_url = base_url
-        self.api_base = api_base
+        self.api_token = (
+            api_token
+            or PROVIDER_MODELS.get(provider, "no-token")
+            or os.getenv("OPENAI_API_KEY")
+        )
         self.instruction = instruction
         self.extract_type = extraction_type
         self.schema = schema
         if schema:
             self.extract_type = "schema"
-        self.chunk_token_threshold = chunk_token_threshold or CHUNK_TOKEN_THRESHOLD
-        self.overlap_rate = overlap_rate
-        self.word_token_rate = word_token_rate
-        self.apply_chunking = apply_chunking
+
+        self.chunk_token_threshold = kwargs.get(
+            "chunk_token_threshold", CHUNK_TOKEN_THRESHOLD
+        )
+        self.overlap_rate = kwargs.get("overlap_rate", OVERLAP_RATE)
+        self.word_token_rate = kwargs.get("word_token_rate", WORD_TOKEN_RATE)
+        self.apply_chunking = kwargs.get("apply_chunking", True)
+        self.base_url = kwargs.get("base_url", None)
+        self.api_base = kwargs.get("api_base", kwargs.get("base_url", None))
         self.extra_args = kwargs.get("extra_args", {})
         if not self.apply_chunking:
             self.chunk_token_threshold = 1e9
-        self.verbose = verbose
+
+        self.verbose = kwargs.get("verbose", False)
         self.usages = []  # Store individual usages
         self.total_usage = TokenUsage()  # Accumulated usage
 
-    
-    def __setattr__(self, name, value):
-        """Handle attribute setting."""
-        # TODO: Planning to set properties dynamically based on the __init__ signature
-        sig = inspect.signature(self.__init__)
-        all_params = sig.parameters  # Dictionary of parameter names and their details
+        if not self.api_token:
+            raise ValueError(
+                "API token must be provided for LLMExtractionStrategy. Update the config.py or set OPENAI_API_KEY environment variable."
+            )
 
-        if name in self._UNWANTED_PROPS and value is not all_params[name].default:
-            raise AttributeError(f"Setting '{name}' is deprecated. {self._UNWANTED_PROPS[name]}")
-        
-        super().__setattr__(name, value)  
-        
     def extract(self, url: str, ix: int, html: str) -> List[Dict[str, Any]]:
         """
         Extract meaningful blocks or chunks from the given HTML using an LLM.
@@ -609,7 +590,7 @@ class LLMExtractionStrategy(ExtractionStrategy):
             prompt_with_variables = PROMPT_EXTRACT_BLOCKS_WITH_INSTRUCTION
 
         if self.extract_type == "schema" and self.schema:
-            variable_values["SCHEMA"] = json.dumps(self.schema, indent=2) # if type of self.schema is dict else self.schema
+            variable_values["SCHEMA"] = json.dumps(self.schema, indent=2)
             prompt_with_variables = PROMPT_EXTRACT_SCHEMA_WITH_INSTRUCTION
 
         for variable in variable_values:
@@ -618,10 +599,10 @@ class LLMExtractionStrategy(ExtractionStrategy):
             )
 
         response = perform_completion_with_backoff(
-            self.llmConfig.provider,
+            self.provider,
             prompt_with_variables,
-            self.llmConfig.api_token,
-            base_url=self.llmConfig.base_url,
+            self.api_token,
+            base_url=self.api_base or self.base_url,
             extra_args=self.extra_args,
         )  # , json_response=self.extract_type == "schema")
         # Track usage
@@ -671,16 +652,53 @@ class LLMExtractionStrategy(ExtractionStrategy):
             )
         return blocks
 
-    def _merge(self, documents, chunk_token_threshold, overlap) -> List[str]:
+    def _merge(self, documents, chunk_token_threshold, overlap):
         """
         Merge documents into sections based on chunk_token_threshold and overlap.
         """
-        sections =  merge_chunks(
-            docs = documents,
-            target_size= chunk_token_threshold,
-            overlap=overlap,
-            word_token_ratio=self.word_token_rate
-        )
+        # chunks = []
+        sections = []
+        total_tokens = 0
+
+        # Calculate the total tokens across all documents
+        for document in documents:
+            total_tokens += len(document.split(" ")) * self.word_token_rate
+
+        # Calculate the number of sections needed
+        num_sections = math.floor(total_tokens / chunk_token_threshold)
+        if num_sections < 1:
+            num_sections = 1  # Ensure there is at least one section
+        adjusted_chunk_threshold = total_tokens / num_sections
+
+        total_token_so_far = 0
+        current_chunk = []
+
+        for document in documents:
+            tokens = document.split(" ")
+            token_count = len(tokens) * self.word_token_rate
+
+            if total_token_so_far + token_count <= adjusted_chunk_threshold:
+                current_chunk.extend(tokens)
+                total_token_so_far += token_count
+            else:
+                # Ensure to handle the last section properly
+                if len(sections) == num_sections - 1:
+                    current_chunk.extend(tokens)
+                    continue
+
+                # Add overlap if specified
+                if overlap > 0 and current_chunk:
+                    overlap_tokens = current_chunk[-overlap:]
+                    current_chunk.extend(overlap_tokens)
+
+                sections.append(" ".join(current_chunk))
+                current_chunk = tokens
+                total_token_so_far = token_count
+
+        # Add the last chunk
+        if current_chunk:
+            sections.append(" ".join(current_chunk))
+
         return sections
 
     def run(self, url: str, sections: List[str]) -> List[Dict[str, Any]]:
@@ -701,7 +719,7 @@ class LLMExtractionStrategy(ExtractionStrategy):
             overlap=int(self.chunk_token_threshold * self.overlap_rate),
         )
         extracted_content = []
-        if self.llmConfig.provider.startswith("groq/"):
+        if self.provider.startswith("groq/"):
             # Sequential processing with a delay
             for ix, section in enumerate(merged_sections):
                 extract_func = partial(self.extract, url)
@@ -1042,20 +1060,13 @@ class JsonElementExtractionStrategy(ExtractionStrategy):
         """Get attribute value from element"""
         pass
 
-    _GENERATE_SCHEMA_UNWANTED_PROPS = {
-        'provider': 'Instead, use llmConfig=LlmConfig(provider="...")',
-        'api_token': 'Instead, use llmConfig=LlMConfig(api_token="...")',
-    }
-
     @staticmethod
     def generate_schema(
         html: str,
         schema_type: str = "CSS", # or XPATH
         query: str = None,
-        target_json_example: str = None,
-        llmConfig: 'LLMConfig' = None,
-        provider: str = None,
-        api_token: str = None,
+        provider: str = "gpt-4o",
+        api_token: str = os.getenv("OPENAI_API_KEY"),
         **kwargs
     ) -> dict:
         """
@@ -1064,9 +1075,8 @@ class JsonElementExtractionStrategy(ExtractionStrategy):
         Args:
             html (str): The HTML content to analyze
             query (str, optional): Natural language description of what data to extract
-            provider (str): Legacy Parameter. LLM provider to use 
-            api_token (str): Legacy Parameter. API token for LLM provider
-            llmConfig (LlmConfig): LLM configuration object
+            provider (str): LLM provider to use 
+            api_token (str): API token for LLM provider
             prompt (str, optional): Custom prompt template to use
             **kwargs: Additional args passed to perform_completion_with_backoff
             
@@ -1075,9 +1085,6 @@ class JsonElementExtractionStrategy(ExtractionStrategy):
         """
         from .prompts import JSON_SCHEMA_BUILDER
         from .utils import perform_completion_with_backoff
-        for name, message in JsonElementExtractionStrategy._GENERATE_SCHEMA_UNWANTED_PROPS.items():
-            if locals()[name] is not None:
-                raise AttributeError(f"Setting '{name}' is deprecated. {message}")
         
         # Use default or custom prompt
         prompt_template = JSON_SCHEMA_BUILDER if schema_type == "CSS" else JSON_SCHEMA_BUILDER_XPATH
@@ -1085,55 +1092,31 @@ class JsonElementExtractionStrategy(ExtractionStrategy):
         # Build the prompt
         system_message = {
             "role": "system", 
-            "content": f"""You specialize in generating special JSON schemas for web scraping. This schema uses CSS or XPATH selectors to present a repetitive pattern in crawled HTML, such as a product in a product list or a search result item in a list of search results. You use this JSON schema to pass to a language model along with the HTML content to extract structured data from the HTML. The language model uses the JSON schema to extract data from the HTML and retrieve values for fields in the JSON schema, following the schema.
-
-Generating this HTML manually is not feasible, so you need to generate the JSON schema using the HTML content. The HTML copied from the crawled website is provided below, which we believe contains the repetitive pattern.
-
-# Schema main keys:
-- name: This is the name of the schema.
-- baseSelector: This is the CSS or XPATH selector that identifies the base element that contains all the repetitive patterns.
-- baseFields: This is a list of fields that you extract from the base element itself.
-- fields: This is a list of fields that you extract from the children of the base element. {{name, selector, type}} based on the type, you may have extra keys such as "attribute" when the type is "attribute".
-
-# Extra Context:
-In this context, the following items may or may not be present:
-- Example of target JSON object: This is a sample of the final JSON object that we hope to extract from the HTML using the schema you are generating.
-- Extra Instructions: This is optional instructions to consider when generating the schema provided by the user.
-
-# What if there is no example of target JSON object?
-In this scenario, use your best judgment to generate the schema. Try to maximize the number of fields that you can extract from the HTML.
-
-# What are the instructions and details for this schema generation?
-{prompt_template}"""
+            "content": "You are a specialized HTML schema generator. Analyze the HTML and generate a JSON schema that follows the specified format. Only output valid JSON schema, nothing else."
         }
         
         user_message = {
             "role": "user",
             "content": f"""
+                Instructions:
+                {prompt_template}
+
                 HTML to analyze:
                 ```html
                 {html}
                 ```
+
+                {"Extract the following data: " + query if query else "Please analyze the HTML structure and create the most appropriate schema for data extraction."}
                 """
         }
 
-        if query:
-            user_message["content"] += f"\n\nImportant Notes to Consider:\n{query}"
-        if target_json_example:
-            user_message["content"] += f"\n\nExample of target JSON object:\n{target_json_example}"
-        
-        user_message["content"] += """IMPORTANT: Ensure your schema is reliable, meaning do not use selectors that seem to generate dynamically and are not reliable. A reliable schema is what you want, as it consistently returns the same data even after many reloads of the page.
-
-        Analyze the HTML and generate a JSON schema that follows the specified format. Only output valid JSON schema, nothing else.
-        """
-
         try:
             # Call LLM with backoff handling
             response = perform_completion_with_backoff(
-                provider=llmConfig.provider,
+                provider=provider,
                 prompt_with_variables="\n\n".join([system_message["content"], user_message["content"]]),
                 json_response = True,                
-                api_token=llmConfig.api_token,
+                api_token=api_token,
                 **kwargs
             )
             

crawl4ai/html2text/__init__.py

@@ -510,7 +510,6 @@ class HTML2Text(html.parser.HTMLParser):
 
         if tag == "a" and not self.ignore_links:
             if start:
-                self.inside_link = True
                 if (
                     "href" in attrs
                     and attrs["href"] is not None
@@ -527,7 +526,6 @@ class HTML2Text(html.parser.HTMLParser):
                 else:
                     self.astack.append(None)
             else:
-                self.inside_link = False
                 if self.astack:
                     a = self.astack.pop()
                     if self.maybe_automatic_link and not self.empty_link:
@@ -612,22 +610,13 @@ class HTML2Text(html.parser.HTMLParser):
                         self.o("[" + str(a_props.count) + "]")
 
         if tag == "dl" and start:
-            self.p()  # Add paragraph break before list starts
-            self.p_p = 0  # Reset paragraph state
-        
-        elif tag == "dt" and start:
-            if self.p_p == 0:  # If not first term
-                self.o("\n\n")  # Add spacing before new term-definition pair
-            self.p_p = 0  # Reset paragraph state
-        
-        elif tag == "dt" and not start:
-            self.o("\n")  # Single newline between term and definition
-        
-        elif tag == "dd" and start:
-            self.o("    ")  # Indent definition
-        
-        elif tag == "dd" and not start:
-            self.p_p = 0
+            self.p()
+        if tag == "dt" and not start:
+            self.pbr()
+        if tag == "dd" and start:
+            self.o("    ")
+        if tag == "dd" and not start:
+            self.pbr()
 
         if tag in ["ol", "ul"]:
             # Google Docs create sub lists as top level lists
@@ -1037,7 +1026,6 @@ class CustomHTML2Text(HTML2Text):
         super().__init__(*args, **kwargs)
         self.inside_pre = False
         self.inside_code = False
-        self.inside_link = False
         self.preserve_tags = set()  # Set of tags to preserve
         self.current_preserved_tag = None
         self.preserved_content = []
@@ -1117,17 +1105,11 @@ class CustomHTML2Text(HTML2Text):
                 # Ignore code tags inside pre blocks if handle_code_in_pre is False
                 return
             if start:
-                if not self.inside_link:
-                    self.o("`")  # Only output backtick if not inside a link
+                self.o("`")  # Markdown inline code start
                 self.inside_code = True
             else:
-                if not self.inside_link:
-                    self.o("`")  # Only output backtick if not inside a link
+                self.o("`")  # Markdown inline code end
                 self.inside_code = False
-
-            # If inside a link, let the parent class handle the content
-            if self.inside_link:
-                super().handle_tag(tag, attrs, start) 
         else:
             super().handle_tag(tag, attrs, start)
 

crawl4ai/hub.py

@@ -1,69 +0,0 @@
-# crawl4ai/hub.py
-from abc import ABC, abstractmethod
-from typing import Dict, Type, Union
-import logging
-import importlib
-from pathlib import Path
-import inspect
-
-logger = logging.getLogger(__name__)
-
-
-class BaseCrawler(ABC):
-    def __init__(self):
-        self.logger = logging.getLogger(self.__class__.__name__)
-        
-    @abstractmethod
-    async def run(self, url: str = "", **kwargs) -> str:
-        """
-        Implement this method to return JSON string.
-        Must accept URL + arbitrary kwargs for flexibility.
-        """
-        pass
-
-    def __init_subclass__(cls, **kwargs):
-        """Enforce interface validation on subclassing"""
-        super().__init_subclass__(**kwargs)
-        
-        # Verify run method signature
-        run_method = cls.run
-        if not run_method.__code__.co_argcount >= 2:  # self + url
-            raise TypeError(f"{cls.__name__} must implement 'run(self, url: str, **kwargs)'")
-            
-        # Verify async nature
-        if not inspect.iscoroutinefunction(run_method):
-            raise TypeError(f"{cls.__name__}.run must be async")
-
-class CrawlerHub:
-    _crawlers: Dict[str, Type[BaseCrawler]] = {}
-
-    @classmethod
-    def _discover_crawlers(cls):
-        """Dynamically load crawlers from /crawlers in 3 lines"""
-        base_path = Path(__file__).parent / "crawlers"
-        for crawler_dir in base_path.iterdir():
-            if crawler_dir.is_dir():
-                try:
-                    module = importlib.import_module(
-                        f"crawl4ai.crawlers.{crawler_dir.name}.crawler"
-                    )
-                    for attr in dir(module):
-                        cls._maybe_register_crawler(
-                            getattr(module, attr), crawler_dir.name
-                        )
-                except Exception as e:
-                    logger.warning(f"Failed {crawler_dir.name}: {str(e)}")
-
-    @classmethod
-    def _maybe_register_crawler(cls, obj, name: str):
-        """Brilliant one-liner registration"""
-        if isinstance(obj, type) and issubclass(obj, BaseCrawler) and obj != BaseCrawler:
-            module = importlib.import_module(obj.__module__)
-            obj.meta = getattr(module, "__meta__", {})
-            cls._crawlers[name] = obj
-
-    @classmethod
-    def get(cls, name: str) -> Union[Type[BaseCrawler], None]:
-        if not cls._crawlers:
-            cls._discover_crawlers()
-        return cls._crawlers.get(name)

crawl4ai/install.py

@@ -2,47 +2,14 @@ import subprocess
 import sys
 import asyncio
 from .async_logger import AsyncLogger, LogLevel
-from pathlib import Path
-import os
-import shutil
 
 # Initialize logger
 logger = AsyncLogger(log_level=LogLevel.DEBUG, verbose=True)
 
-def setup_home_directory():
-    """Set up the .crawl4ai folder structure in the user's home directory."""
-    base_dir = os.getenv("CRAWL4_AI_BASE_DIRECTORY")
-    crawl4ai_folder = Path(base_dir) if base_dir else Path.home()
-    crawl4ai_config = crawl4ai_folder / "global.yml"
-    crawl4ai_folder = crawl4ai_folder / ".crawl4ai"
-    cache_folder = crawl4ai_folder / "cache"
-    content_folders = [
-        "html_content",
-        "cleaned_html",
-        "markdown_content",
-        "extracted_content",
-        "screenshots",
-    ]
-
-    # Clean up old cache if exists
-    if cache_folder.exists():
-        shutil.rmtree(cache_folder)
-
-    # Create new folder structure
-    crawl4ai_folder.mkdir(exist_ok=True)
-    cache_folder.mkdir(exist_ok=True)
-    for folder in content_folders:
-        (crawl4ai_folder / folder).mkdir(exist_ok=True)
-    
-    # If config file does not exist, create it
-    if not crawl4ai_config.exists():
-        with open(crawl4ai_config, "w") as f:
-            f.write("")
 
 def post_install():
     """Run all post-installation tasks"""
     logger.info("Running post-installation setup...", tag="INIT")
-    setup_home_directory()
     install_playwright()
     run_migration()
     logger.success("Post-installation setup completed!", tag="COMPLETE")
@@ -139,5 +106,4 @@ def doctor():
     """Entry point for the doctor command"""
     import asyncio
 
-    asyncio.run(run_doctor())
-    sys.exit(0)
+    return asyncio.run(run_doctor())

crawl4ai/legacy/cli.py

@@ -1,123 +0,0 @@
-import click
-import sys
-import asyncio
-from typing import List
-from .docs_manager import DocsManager
-from .async_logger import AsyncLogger
-
-logger = AsyncLogger(verbose=True)
-docs_manager = DocsManager(logger)
-
-
-def print_table(headers: List[str], rows: List[List[str]], padding: int = 2):
-    """Print formatted table with headers and rows"""
-    widths = [max(len(str(cell)) for cell in col) for col in zip(headers, *rows)]
-    border = "+" + "+".join("-" * (w + 2 * padding) for w in widths) + "+"
-
-    def format_row(row):
-        return (
-            "|"
-            + "|".join(
-                f"{' ' * padding}{str(cell):<{w}}{' ' * padding}"
-                for cell, w in zip(row, widths)
-            )
-            + "|"
-        )
-
-    click.echo(border)
-    click.echo(format_row(headers))
-    click.echo(border)
-    for row in rows:
-        click.echo(format_row(row))
-    click.echo(border)
-
-
-@click.group()
-def cli():
-    """Crawl4AI Command Line Interface"""
-    pass
-
-
-@cli.group()
-def docs():
-    """Documentation operations"""
-    pass
-
-
-@docs.command()
-@click.argument("sections", nargs=-1)
-@click.option(
-    "--mode", type=click.Choice(["extended", "condensed"]), default="extended"
-)
-def combine(sections: tuple, mode: str):
-    """Combine documentation sections"""
-    try:
-        asyncio.run(docs_manager.ensure_docs_exist())
-        click.echo(docs_manager.generate(sections, mode))
-    except Exception as e:
-        logger.error(str(e), tag="ERROR")
-        sys.exit(1)
-
-
-@docs.command()
-@click.argument("query")
-@click.option("--top-k", "-k", default=5)
-@click.option("--build-index", is_flag=True, help="Build index if missing")
-def search(query: str, top_k: int, build_index: bool):
-    """Search documentation"""
-    try:
-        result = docs_manager.search(query, top_k)
-        if result == "No search index available. Call build_search_index() first.":
-            if build_index or click.confirm("No search index found. Build it now?"):
-                asyncio.run(docs_manager.llm_text.generate_index_files())
-                result = docs_manager.search(query, top_k)
-        click.echo(result)
-    except Exception as e:
-        click.echo(f"Error: {str(e)}", err=True)
-        sys.exit(1)
-
-
-@docs.command()
-def update():
-    """Update docs from GitHub"""
-    try:
-        asyncio.run(docs_manager.fetch_docs())
-        click.echo("Documentation updated successfully")
-    except Exception as e:
-        click.echo(f"Error: {str(e)}", err=True)
-        sys.exit(1)
-
-
-@docs.command()
-@click.option("--force-facts", is_flag=True, help="Force regenerate fact files")
-@click.option("--clear-cache", is_flag=True, help="Clear BM25 cache")
-def index(force_facts: bool, clear_cache: bool):
-    """Build or rebuild search indexes"""
-    try:
-        asyncio.run(docs_manager.ensure_docs_exist())
-        asyncio.run(
-            docs_manager.llm_text.generate_index_files(
-                force_generate_facts=force_facts, clear_bm25_cache=clear_cache
-            )
-        )
-        click.echo("Search indexes built successfully")
-    except Exception as e:
-        click.echo(f"Error: {str(e)}", err=True)
-        sys.exit(1)
-
-
-# Add docs list command
-@docs.command()
-def list():
-    """List available documentation sections"""
-    try:
-        sections = docs_manager.list()
-        print_table(["Sections"], [[section] for section in sections])
-
-    except Exception as e:
-        click.echo(f"Error: {str(e)}", err=True)
-        sys.exit(1)
-
-
-if __name__ == "__main__":
-    cli()

crawl4ai/markdown_generation_strategy.py

@@ -1,5 +1,4 @@
 from abc import ABC, abstractmethod
-from tabnanny import verbose
 from typing import Optional, Dict, Any, Tuple
 from .models import MarkdownGenerationResult
 from .html2text import CustomHTML2Text
@@ -30,11 +29,9 @@ class MarkdownGenerationStrategy(ABC):
         self,
         content_filter: Optional[RelevantContentFilter] = None,
         options: Optional[Dict[str, Any]] = None,
-        verbose: bool = False,
     ):
         self.content_filter = content_filter
         self.options = options or {}
-        self.verbose = verbose
 
     @abstractmethod
     def generate_markdown(
@@ -179,7 +176,7 @@ class DefaultMarkdownGenerator(MarkdownGenerationStrategy):
                 "ignore_emphasis": False,
                 "ignore_links": False,
                 "ignore_images": False,
-                "protect_links": False,
+                "protect_links": True,
                 "single_line_break": True,
                 "mark_code": True,
                 "escape_snob": False,

crawl4ai/models.py

@@ -1,11 +1,12 @@
-from re import U
-from pydantic import BaseModel, HttpUrl, PrivateAttr
+from __future__ import annotations
+from pydantic import BaseModel, HttpUrl
 from typing import List, Dict, Optional, Callable, Awaitable, Union, Any
 from enum import Enum
 from dataclasses import dataclass
 from .ssl_certificate import SSLCertificate
 from datetime import datetime
 from datetime import timedelta
+from math import inf
 
 
 ###############################
@@ -25,8 +26,8 @@ class CrawlerTaskResult:
     result: "CrawlResult"
     memory_usage: float
     peak_memory: float
-    start_time: Union[datetime, float]
-    end_time: Union[datetime, float]
+    start_time: datetime
+    end_time: datetime
     error_message: str = ""
 
 
@@ -86,27 +87,27 @@ class MarkdownGenerationResult(BaseModel):
     fit_markdown: Optional[str] = None
     fit_html: Optional[str] = None
 
-    def __str__(self):
-        return self.raw_markdown
+
+class DispatchResult(BaseModel):
+    task_id: str
+    memory_usage: float
+    peak_memory: float
+    start_time: datetime
+    end_time: datetime
+    error_message: str = ""
+
 
 @dataclass
 class TraversalStats:
     """Statistics for the traversal process"""
 
-    start_time: datetime = datetime.now()
+    start_time: datetime
     urls_processed: int = 0
     urls_failed: int = 0
     urls_skipped: int = 0
     total_depth_reached: int = 0
     current_depth: int = 0
 
-class DispatchResult(BaseModel):
-    task_id: str
-    memory_usage: float
-    peak_memory: float
-    start_time: Union[datetime, float]
-    end_time: Union[datetime, float]
-    error_message: str = ""
 
 class CrawlResult(BaseModel):
     url: str
@@ -116,10 +117,12 @@ class CrawlResult(BaseModel):
     media: Dict[str, List[Dict]] = {}
     links: Dict[str, List[Dict]] = {}
     downloaded_files: Optional[List[str]] = None
-    js_execution_result: Optional[Dict[str, Any]] = None
     screenshot: Optional[str] = None
     pdf: Optional[bytes] = None
-    _markdown: Optional[MarkdownGenerationResult] = PrivateAttr(default=None)
+    markdown: Optional[Union[str, MarkdownGenerationResult]] = None
+    markdown_v2: Optional[MarkdownGenerationResult] = None
+    fit_markdown: Optional[str] = None
+    fit_html: Optional[str] = None
     extracted_content: Optional[str] = None
     metadata: Optional[dict] = None
     error_message: Optional[str] = None
@@ -129,127 +132,17 @@ class CrawlResult(BaseModel):
     ssl_certificate: Optional[SSLCertificate] = None
     dispatch_result: Optional[DispatchResult] = None
     redirected_url: Optional[str] = None
+    # Attributes for position
+    depth: Optional[int] = None
+    score: Optional[float] = -inf
+    parent_url: Optional[str] = None
 
     class Config:
         arbitrary_types_allowed = True
 
-# NOTE: The StringCompatibleMarkdown class, custom __init__ method, property getters/setters,
-# and model_dump override all exist to support a smooth transition from markdown as a string
-# to markdown as a MarkdownGenerationResult object, while maintaining backward compatibility.
-# 
-# This allows code that expects markdown to be a string to continue working, while also
-# providing access to the full MarkdownGenerationResult object's properties.
-# 
-# The markdown_v2 property is deprecated and raises an error directing users to use markdown.
-# 
-# When backward compatibility is no longer needed in future versions, this entire mechanism
-# can be simplified to a standard field with no custom accessors or serialization logic.
-    
-    def __init__(self, **data):
-        markdown_result = data.pop('markdown', None)
-        super().__init__(**data)
-        if markdown_result is not None:
-            self._markdown = markdown_result
-    
-    @property
-    def markdown(self):
-        """
-        Property that returns a StringCompatibleMarkdown object that behaves like
-        a string but also provides access to MarkdownGenerationResult attributes.
-        
-        This approach allows backward compatibility with code that expects 'markdown'
-        to be a string, while providing access to the full MarkdownGenerationResult.
-        """
-        if self._markdown is None:
-            return None
-        return StringCompatibleMarkdown(self._markdown)
-    
-    @markdown.setter
-    def markdown(self, value):
-        """
-        Setter for the markdown property.
-        """
-        self._markdown = value
-    
-    @property
-    def markdown_v2(self):
-        """
-        Deprecated property that raises an AttributeError when accessed.
-
-        This property exists to inform users that 'markdown_v2' has been
-        deprecated and they should use 'markdown' instead.
-        """
-        raise AttributeError(
-            "The 'markdown_v2' attribute is deprecated and has been removed. "
-            """Please use 'markdown' instead, which now returns a MarkdownGenerationResult, with
-            following properties:
-            - raw_markdown: The raw markdown string
-            - markdown_with_citations: The markdown string with citations
-            - references_markdown: The markdown string with references
-            - fit_markdown: The markdown string with fit text
-            """
-        )
-    
-    @property
-    def fit_markdown(self):
-        """
-        Deprecated property that raises an AttributeError when accessed.
-        """
-        raise AttributeError(
-            "The 'fit_markdown' attribute is deprecated and has been removed. "
-            "Please use 'markdown.fit_markdown' instead."
-        )
-    
-    @property
-    def fit_html(self):
-        """
-        Deprecated property that raises an AttributeError when accessed.
-        """
-        raise AttributeError(
-            "The 'fit_html' attribute is deprecated and has been removed. "
-            "Please use 'markdown.fit_html' instead."
-        )
-
-    def model_dump(self, *args, **kwargs):
-        """
-        Override model_dump to include the _markdown private attribute in serialization.
-        
-        This override is necessary because:
-        1. PrivateAttr fields are excluded from serialization by default
-        2. We need to maintain backward compatibility by including the 'markdown' field
-           in the serialized output
-        3. We're transitioning from 'markdown_v2' to enhancing 'markdown' to hold
-           the same type of data
-        
-        Future developers: This method ensures that the markdown content is properly
-        serialized despite being stored in a private attribute. If the serialization
-        requirements change, this is where you would update the logic.
-        """
-        result = super().model_dump(*args, **kwargs)
-        if self._markdown is not None:
-            result["markdown"] = self._markdown.model_dump() 
-        return result
-
-class StringCompatibleMarkdown(str):
-    """A string subclass that also provides access to MarkdownGenerationResult attributes"""
-    def __new__(cls, markdown_result):
-        return super().__new__(cls, markdown_result.raw_markdown)
-    
-    def __init__(self, markdown_result):
-        self._markdown_result = markdown_result
-    
-    def __getattr__(self, name):
-        return getattr(self._markdown_result, name)
-
-# END of backward compatibility code for markdown/markdown_v2.
-# When removing this code in the future, make sure to:
-# 1. Replace the private attribute and property with a standard field
-# 2. Update any serialization logic that might depend on the current behavior
-
 class AsyncCrawlResponse(BaseModel):
     html: str
     response_headers: Dict[str, str]
-    js_execution_result: Optional[Dict[str, Any]] = None
     status_code: int
     screenshot: Optional[str] = None
     pdf_data: Optional[bytes] = None
@@ -267,7 +160,6 @@ class AsyncCrawlResponse(BaseModel):
 ###############################
 class MediaItem(BaseModel):
     src: Optional[str] = ""
-    data: Optional[str] = ""
     alt: Optional[str] = ""
     desc: Optional[str] = ""
     score: Optional[int] = 0
@@ -286,12 +178,12 @@ class Link(BaseModel):
 
 class Media(BaseModel):
     images: List[MediaItem] = []
-    videos: List[
-        MediaItem
-    ] = []  # Using MediaItem model for now, can be extended with Video model if needed
-    audios: List[
-        MediaItem
-    ] = []  # Using MediaItem model for now, can be extended with Audio model if needed
+    videos: List[MediaItem] = (
+        []
+    )  # Using MediaItem model for now, can be extended with Video model if needed
+    audios: List[MediaItem] = (
+        []
+    )  # Using MediaItem model for now, can be extended with Audio model if needed
 
 
 class Links(BaseModel):

crawl4ai/processors/pdf/__init__.py

@@ -1,165 +0,0 @@
-from pathlib import Path
-import asyncio
-from dataclasses import asdict
-from crawl4ai.async_logger import AsyncLogger
-from crawl4ai.async_crawler_strategy import AsyncCrawlerStrategy
-from crawl4ai.models import AsyncCrawlResponse, ScrapingResult 
-from crawl4ai.content_scraping_strategy import ContentScrapingStrategy
-from .processor import NaivePDFProcessorStrategy  # Assuming your current PDF code is in pdf_processor.py
-
-class PDFCrawlerStrategy(AsyncCrawlerStrategy):
-    def __init__(self, logger: AsyncLogger = None):
-        self.logger = logger
-        
-    async def crawl(self, url: str, **kwargs) -> AsyncCrawlResponse:
-        # Just pass through with empty HTML - scraper will handle actual processing
-        return AsyncCrawlResponse(
-            html="",  # Scraper will handle the real work
-            response_headers={"Content-Type": "application/pdf"},
-            status_code=200
-        )
-    
-    async def close(self):
-        pass        
-        
-    async def __aenter__(self):        
-        return self
-    
-    async def __aexit__(self, exc_type, exc_val, exc_tb):
-        await self.close()
-
-class PDFContentScrapingStrategy(ContentScrapingStrategy):
-    """
-    A content scraping strategy for PDF files.
-    
-    Attributes:
-        save_images_locally (bool): Whether to save images locally.
-        extract_images (bool): Whether to extract images from PDF.
-        image_save_dir (str): Directory to save extracted images.
-        logger (AsyncLogger): Logger instance for recording events and errors.
-        
-    Methods:
-        scrap(url: str, html: str, **params) -> ScrapingResult:
-            Scrap content from a PDF file.
-        ascrap(url: str, html: str, **kwargs) -> ScrapingResult:
-            Asynchronous version of scrap.
-            
-    Usage:
-        strategy = PDFContentScrapingStrategy(
-            save_images_locally=False,
-            extract_images=False,
-            image_save_dir=None,
-            logger=logger
-        )
-        
-    """
-    def __init__(self, 
-                 save_images_locally : bool = False,
-                 extract_images : bool = False,
-                 image_save_dir : str = None,
-                 batch_size: int = 4,
-                 logger: AsyncLogger = None):
-        self.logger = logger
-        self.pdf_processor = NaivePDFProcessorStrategy(
-            save_images_locally=save_images_locally,
-            extract_images=extract_images,
-            image_save_dir=image_save_dir,
-            batch_size=batch_size
-        )
-
-    def scrap(self, url: str, html: str, **params) -> ScrapingResult:
-        """
-        Scrap content from a PDF file.
-        
-        Args:
-            url (str): The URL of the PDF file.
-            html (str): The HTML content of the page.
-            **params: Additional parameters.
-        
-        Returns:
-            ScrapingResult: The scraped content.
-        """
-        # Download if URL or use local path
-        pdf_path = self._get_pdf_path(url)
-        try:
-            # Process PDF
-            # result = self.pdf_processor.process(Path(pdf_path))
-            result = self.pdf_processor.process_batch(Path(pdf_path))
-            
-            # Combine page HTML
-            cleaned_html = f"""
-        <html>
-            <head><meta name="pdf-pages" content="{len(result.pages)}"></head>
-            <body>
-                {''.join(f'<div class="pdf-page" data-page="{i+1}">{page.html}</div>'
-                         for i, page in enumerate(result.pages))}
-            </body>
-        </html>
-        """
-            
-            # Accumulate media and links with page numbers
-            media = {"images": []}
-            links = {"urls": []}
-            
-            for page in result.pages:
-                # Add page number to each image
-                for img in page.images:
-                    img["page"] = page.page_number
-                    media["images"].append(img)
-                
-                # Add page number to each link
-                for link in page.links:
-                    links["urls"].append({
-                        "url": link,
-                        "page": page.page_number
-                    })
-
-            return ScrapingResult(
-                cleaned_html=cleaned_html,
-                success=True,
-                media=media,
-                links=links,
-                metadata=asdict(result.metadata)
-            )
-        finally:
-            # Cleanup temp file if downloaded
-            if url.startswith(("http://", "https://")):
-                Path(pdf_path).unlink(missing_ok=True)
-
-    async def ascrap(self, url: str, html: str, **kwargs) -> ScrapingResult:
-        # For simple cases, you can use the sync version
-        return await asyncio.to_thread(self.scrap, url, html, **kwargs)
-        
-
-    def _get_pdf_path(self, url: str) -> str:
-        if url.startswith(("http://", "https://")):
-            import tempfile
-            import requests
-            
-            # Create temp file with .pdf extension
-            temp_file = tempfile.NamedTemporaryFile(suffix='.pdf', delete=False)
-            
-            try:
-                # Download PDF with streaming
-                response = requests.get(url, stream=True)
-                response.raise_for_status()
-                
-                # Write to temp file
-                with open(temp_file.name, 'wb') as f:
-                    for chunk in response.iter_content(chunk_size=8192):
-                        f.write(chunk)
-                        
-                return temp_file.name
-                
-            except Exception as e:
-                # Clean up temp file if download fails
-                Path(temp_file.name).unlink(missing_ok=True)
-                raise RuntimeError(f"Failed to download PDF from {url}: {str(e)}")
-                
-        elif url.startswith("file://"):
-            return url[7:]  # Strip file:// prefix
-            
-        return url  # Assume local path
-    
-
-__all__ = ["PDFCrawlerStrategy", "PDFContentScrapingStrategy"]

crawl4ai/processors/pdf/processor.py

@@ -1,487 +0,0 @@
-import logging
-import re
-from abc import ABC, abstractmethod
-from datetime import datetime
-from pathlib import Path
-from time import time
-from dataclasses import dataclass, asdict, field
-from typing import Dict, List, Optional, Any, Union
-import base64
-import tempfile
-from .utils import *
-from .utils import (
-    apply_png_predictor,
-    clean_pdf_text,
-    clean_pdf_text_to_html,
-)
-
-# Remove direct PyPDF2 imports from the top
-# import PyPDF2
-# from PyPDF2 import PdfReader
-
-logger = logging.getLogger(__name__)
-
-@dataclass
-class PDFMetadata:
-    title: Optional[str] = None
-    author: Optional[str] = None
-    producer: Optional[str] = None
-    created: Optional[datetime] = None
-    modified: Optional[datetime] = None
-    pages: int = 0
-    encrypted: bool = False
-    file_size: Optional[int] = None
-
-@dataclass
-class PDFPage:
-    page_number: int
-    raw_text: str = ""
-    markdown: str = ""
-    html: str = ""
-    images: List[Dict] = field(default_factory=list)
-    links: List[str] = field(default_factory=list)
-    layout: List[Dict] = field(default_factory=list)
-
-@dataclass
-class PDFProcessResult:
-    metadata: PDFMetadata
-    pages: List[PDFPage]
-    processing_time: float = 0.0
-    version: str = "1.0"
-
-class PDFProcessorStrategy(ABC):
-    @abstractmethod
-    def process(self, pdf_path: Path) -> PDFProcessResult:
-        pass
-
-class NaivePDFProcessorStrategy(PDFProcessorStrategy):
-    def __init__(self, image_dpi: int = 144, image_quality: int = 85, extract_images: bool = True, 
-                 save_images_locally: bool = False, image_save_dir: Optional[Path] = None, batch_size: int = 4):
-        # Import check at initialization time
-        try:
-            import PyPDF2
-        except ImportError:
-            raise ImportError("PyPDF2 is required for PDF processing. Install with 'pip install crawl4ai[pdf]'")
-            
-        self.image_dpi = image_dpi
-        self.image_quality = image_quality
-        self.current_page_number = 0
-        self.extract_images = extract_images
-        self.save_images_locally = save_images_locally
-        self.image_save_dir = image_save_dir
-        self.batch_size = batch_size
-        self._temp_dir = None
-
-    def process(self, pdf_path: Path) -> PDFProcessResult:
-        # Import inside method to allow dependency to be optional
-        try:
-            from PyPDF2 import PdfReader
-        except ImportError:
-            raise ImportError("PyPDF2 is required for PDF processing. Install with 'pip install crawl4ai[pdf]'")
-            
-        start_time = time()
-        result = PDFProcessResult(
-            metadata=PDFMetadata(),
-            pages=[],
-            version="1.1"
-        )
-
-        try:
-            with pdf_path.open('rb') as file:
-                reader = PdfReader(file)
-                result.metadata = self._extract_metadata(pdf_path, reader)
-                
-                # Handle image directory
-                image_dir = None
-                if self.extract_images and self.save_images_locally:
-                    if self.image_save_dir:
-                        image_dir = Path(self.image_save_dir)
-                        image_dir.mkdir(exist_ok=True, parents=True)
-                    else:
-                        self._temp_dir = tempfile.mkdtemp(prefix='pdf_images_')
-                        image_dir = Path(self._temp_dir)
-
-                for page_num, page in enumerate(reader.pages):
-                    self.current_page_number = page_num + 1
-                    pdf_page = self._process_page(page, image_dir)
-                    result.pages.append(pdf_page)
-
-        except Exception as e:
-            logger.error(f"Failed to process PDF: {str(e)}")
-            raise
-        finally:
-            # Cleanup temp directory if it was created
-            if self._temp_dir and not self.image_save_dir:
-                import shutil
-                try:
-                    shutil.rmtree(self._temp_dir)
-                except Exception as e:
-                    logger.error(f"Failed to cleanup temp directory: {str(e)}")
-
-        result.processing_time = time() - start_time
-        return result
-
-    def process_batch(self, pdf_path: Path) -> PDFProcessResult:
-        """Like process() but processes PDF pages in parallel batches"""
-        # Import inside method to allow dependency to be optional
-        try:
-            from PyPDF2 import PdfReader
-            import PyPDF2  # For type checking
-        except ImportError:
-            raise ImportError("PyPDF2 is required for PDF processing. Install with 'pip install crawl4ai[pdf]'")
-            
-        import concurrent.futures
-        import threading
-        
-        # Initialize PyPDF2 thread support
-        if not hasattr(threading.current_thread(), "_children"): 
-            threading.current_thread()._children = set()
-        
-        start_time = time()
-        result = PDFProcessResult(
-            metadata=PDFMetadata(),
-            pages=[],
-            version="1.1" 
-        )
-
-        try:
-            # Get metadata and page count from main thread
-            with pdf_path.open('rb') as file:
-                reader = PdfReader(file)
-                result.metadata = self._extract_metadata(pdf_path, reader)
-                total_pages = len(reader.pages)
-
-            # Handle image directory setup
-            image_dir = None
-            if self.extract_images and self.save_images_locally:
-                if self.image_save_dir:
-                    image_dir = Path(self.image_save_dir)
-                    image_dir.mkdir(exist_ok=True, parents=True)
-                else:
-                    self._temp_dir = tempfile.mkdtemp(prefix='pdf_images_')
-                    image_dir = Path(self._temp_dir)
-
-            def process_page_safely(page_num: int):
-                # Each thread opens its own file handle
-                with pdf_path.open('rb') as file:
-                    thread_reader = PdfReader(file)
-                    page = thread_reader.pages[page_num]
-                    self.current_page_number = page_num + 1
-                    return self._process_page(page, image_dir)
-
-            # Process pages in parallel batches
-            with concurrent.futures.ThreadPoolExecutor(max_workers=self.batch_size) as executor:
-                futures = []
-                for page_num in range(total_pages):
-                    future = executor.submit(process_page_safely, page_num)
-                    futures.append((page_num + 1, future))
-
-                # Collect results in order
-                result.pages = [None] * total_pages
-                for page_num, future in futures:
-                    try:
-                        pdf_page = future.result()
-                        result.pages[page_num - 1] = pdf_page
-                    except Exception as e:
-                        logger.error(f"Failed to process page {page_num}: {str(e)}")
-                        raise
-
-        except Exception as e:
-            logger.error(f"Failed to process PDF: {str(e)}")
-            raise
-        finally:
-            # Cleanup temp directory if it was created
-            if self._temp_dir and not self.image_save_dir:
-                import shutil
-                try:
-                    shutil.rmtree(self._temp_dir)
-                except Exception as e:
-                    logger.error(f"Failed to cleanup temp directory: {str(e)}")
-
-        result.processing_time = time() - start_time
-        return result
-
-    def _process_page(self, page, image_dir: Optional[Path]) -> PDFPage:
-        pdf_page = PDFPage(
-            page_number=self.current_page_number,
-        )
-
-        # Text and font extraction
-        def visitor_text(text, cm, tm, font_dict, font_size):
-            pdf_page.raw_text += text
-            pdf_page.layout.append({
-                "type": "text",
-                "text": text,
-                "x": tm[4],
-                "y": tm[5],
-            })
-        
-        page.extract_text(visitor_text=visitor_text)
-
-        # Image extraction
-        if self.extract_images:
-            pdf_page.images = self._extract_images(page, image_dir)
-
-        # Link extraction
-        pdf_page.links = self._extract_links(page)
-        
-        # Add markdown content
-        pdf_page.markdown = clean_pdf_text(self.current_page_number, pdf_page.raw_text)
-        pdf_page.html = clean_pdf_text_to_html(self.current_page_number, pdf_page.raw_text)
-
-        return pdf_page
-
-    def _extract_images(self, page, image_dir: Optional[Path]) -> List[Dict]:
-        # Import PyPDF2 for type checking only when needed
-        try:
-            import PyPDF2
-        except ImportError:
-            raise ImportError("PyPDF2 is required for PDF processing. Install with 'pip install crawl4ai[pdf]'")
-            
-        if not self.extract_images:
-            return []
-
-        images = []
-        try:
-            resources = page.get("/Resources")
-            if resources:  # Check if resources exist
-                resources = resources.get_object()  # Resolve IndirectObject
-                if '/XObject' in resources:
-                    xobjects = resources['/XObject'].get_object()
-                    img_count = 0
-                    for obj_name in xobjects:
-                        xobj = xobjects[obj_name]
-                        if hasattr(xobj, 'get_object') and callable(xobj.get_object):
-                            xobj = xobj.get_object()
-                            if xobj.get('/Subtype') == '/Image':
-                                try:
-                                    img_count += 1
-                                    img_filename = f"page_{self.current_page_number}_img_{img_count}"
-                                    data = xobj.get_data()
-                                    filters = xobj.get('/Filter', [])
-                                    if not isinstance(filters, list):
-                                        filters = [filters]
-
-                                    # Resolve IndirectObjects in properties
-                                    width = xobj.get('/Width', 0)
-                                    height = xobj.get('/Height', 0)
-                                    color_space = xobj.get('/ColorSpace', '/DeviceRGB')
-                                    if isinstance(color_space, PyPDF2.generic.IndirectObject):
-                                        color_space = color_space.get_object()
-
-                                    # Handle different image encodings
-                                    success = False
-                                    image_format = 'bin'
-                                    image_data = None
-                                    
-                                    if '/FlateDecode' in filters:
-                                        try:
-                                            decode_parms = xobj.get('/DecodeParms', {})
-                                            if isinstance(decode_parms, PyPDF2.generic.IndirectObject):
-                                                decode_parms = decode_parms.get_object()
-                                            
-                                            predictor = decode_parms.get('/Predictor', 1)
-                                            bits = xobj.get('/BitsPerComponent', 8)
-                                            colors = 3 if color_space == '/DeviceRGB' else 1
-
-                                            if predictor >= 10:
-                                                data = apply_png_predictor(data, width, bits, colors)
-
-                                            # Create PIL Image
-                                            from PIL import Image
-                                            mode = 'RGB' if color_space == '/DeviceRGB' else 'L'
-                                            img = Image.frombytes(mode, (width, height), data)
-                                            
-                                            if self.save_images_locally:
-                                                final_path = (image_dir / img_filename).with_suffix('.png')
-                                                img.save(final_path)
-                                                image_data = str(final_path)
-                                            else:
-                                                import io
-                                                img_byte_arr = io.BytesIO()
-                                                img.save(img_byte_arr, format='PNG')
-                                                image_data = base64.b64encode(img_byte_arr.getvalue()).decode('utf-8')
-                                            
-                                            success = True
-                                            image_format = 'png'
-                                        except Exception as e:
-                                            logger.error(f"FlateDecode error: {str(e)}")
-
-                                    elif '/DCTDecode' in filters:
-                                        # JPEG image
-                                        try:
-                                            if self.save_images_locally:
-                                                final_path = (image_dir / img_filename).with_suffix('.jpg')
-                                                with open(final_path, 'wb') as f:
-                                                    f.write(data)
-                                                image_data = str(final_path)
-                                            else:
-                                                image_data = base64.b64encode(data).decode('utf-8')
-                                            success = True
-                                            image_format = 'jpeg'
-                                        except Exception as e:
-                                            logger.error(f"JPEG save error: {str(e)}")
-
-                                    elif '/CCITTFaxDecode' in filters:
-                                        try:
-                                            if data[:4] != b'II*\x00':
-                                                # Add TIFF header if missing
-                                                tiff_header = b'II*\x00\x08\x00\x00\x00\x0e\x00\x00\x01\x03\x00\x01\x00\x00\x00' + \
-                                                            width.to_bytes(4, 'little') + \
-                                                            b'\x01\x03\x00\x01\x00\x00\x00' + \
-                                                            height.to_bytes(4, 'little') + \
-                                                            b'\x01\x12\x00\x03\x00\x00\x00\x01\x00\x01\x00\x00\x01\x17\x00\x04\x00\x00\x00\x01\x00\x00\x00J\x01\x1B\x00\x05\x00\x00\x00\x01\x00\x00\x00R\x01\x28\x00\x03\x00\x00\x00\x01\x00\x02\x00\x00'
-                                                data = tiff_header + data
-                                            
-                                            if self.save_images_locally:
-                                                final_path = (image_dir / img_filename).with_suffix('.tiff')
-                                                with open(final_path, 'wb') as f:
-                                                    f.write(data)
-                                                image_data = str(final_path)
-                                            else:
-                                                image_data = base64.b64encode(data).decode('utf-8')
-                                            success = True
-                                            image_format = 'tiff'
-                                        except Exception as e:
-                                            logger.error(f"CCITT save error: {str(e)}")
-
-                                    elif '/JPXDecode' in filters:
-                                        # JPEG 2000
-                                        try:
-                                            if self.save_images_locally:
-                                                final_path = (image_dir / img_filename).with_suffix('.jp2')
-                                                with open(final_path, 'wb') as f:
-                                                    f.write(data)
-                                                image_data = str(final_path)
-                                            else:
-                                                image_data = base64.b64encode(data).decode('utf-8')
-                                            success = True
-                                            image_format = 'jpeg2000'
-                                        except Exception as e:
-                                            logger.error(f"JPEG2000 save error: {str(e)}")
-
-                                    if success and image_data:
-                                        image_info = {
-                                            "format": image_format,
-                                            "width": width,
-                                            "height": height,
-                                            "color_space": str(color_space),
-                                            "bits_per_component": xobj.get('/BitsPerComponent', 1)
-                                        }
-                                        
-                                        if self.save_images_locally:
-                                            image_info["path"] = image_data
-                                        else:
-                                            image_info["data"] = image_data
-                                            
-                                        images.append(image_info)
-                                    else:
-                                        # Fallback: Save raw data
-                                        if self.save_images_locally:
-                                            final_path = (image_dir / img_filename).with_suffix('.bin')
-                                            with open(final_path, 'wb') as f:
-                                                f.write(data)
-                                            logger.warning(f"Saved raw image data to {final_path}")
-                                        else:
-                                            image_data = base64.b64encode(data).decode('utf-8')
-                                            images.append({
-                                                "format": "bin",
-                                                "width": width,
-                                                "height": height,
-                                                "color_space": str(color_space),
-                                                "bits_per_component": xobj.get('/BitsPerComponent', 1),
-                                                "data": image_data
-                                            })
-
-                                except Exception as e:
-                                    logger.error(f"Error processing image: {str(e)}")
-        except Exception as e:
-            logger.error(f"Image extraction error: {str(e)}")
-        
-        return images
-
-    def _extract_links(self, page) -> List[str]:
-        links = []
-        if '/Annots' in page:
-            try:
-                for annot in page['/Annots']:
-                    a = annot.get_object()
-                    if '/A' in a and '/URI' in a['/A']:
-                        links.append(a['/A']['/URI'])
-            except Exception as e:
-                print(f"Link error: {str(e)}")
-        return links
-
-    def _extract_metadata(self, pdf_path: Path, reader = None) -> PDFMetadata:
-        # Import inside method to allow dependency to be optional 
-        if reader is None:
-            try:
-                from PyPDF2 import PdfReader
-                reader = PdfReader(pdf_path)
-            except ImportError:
-                raise ImportError("PyPDF2 is required for PDF processing. Install with 'pip install crawl4ai[pdf]'")
-
-        meta = reader.metadata or {}
-        created = self._parse_pdf_date(meta.get('/CreationDate', ''))
-        modified = self._parse_pdf_date(meta.get('/ModDate', ''))
-        
-        return PDFMetadata(
-            title=meta.get('/Title'),
-            author=meta.get('/Author'),
-            producer=meta.get('/Producer'),
-            created=created,
-            modified=modified,
-            pages=len(reader.pages),
-            encrypted=reader.is_encrypted,
-            file_size=pdf_path.stat().st_size
-        )
-
-    def _parse_pdf_date(self, date_str: str) -> Optional[datetime]:
-        try:
-            match = re.match(r'D:(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})', date_str)
-            if not match:
-                return None
-                
-            return datetime(
-                year=int(match[1]),
-                month=int(match[2]),
-                day=int(match[3]),
-                hour=int(match[4]),
-                minute=int(match[5]),
-                second=int(match[6])
-            )
-        except:
-            return None
-
-# Usage example
-if __name__ == "__main__":
-    import json
-    from pathlib import Path
-    
-    try:
-        # Import PyPDF2 only when running the file directly
-        import PyPDF2
-        from PyPDF2 import PdfReader
-    except ImportError:
-        print("PyPDF2 is required for PDF processing. Install with 'pip install crawl4ai[pdf]'")
-        exit(1)
-        
-    current_dir = Path(__file__).resolve().parent
-    pdf_path = f'{current_dir}/test.pdf'
-    
-    strategy = NaivePDFProcessorStrategy()
-    result = strategy.process(Path(pdf_path))
-    
-    # Convert to JSON
-    json_output = asdict(result)
-    print(json.dumps(json_output, indent=2, default=str))
-    
-    with open(f'{current_dir}/test.html', 'w') as f:
-        for page in result.pages:
-            f.write(f'<h1>Page {page["page_number"]}</h1>')
-            f.write(page['html'])
-    with open(f'{current_dir}/test.md', 'w') as f:
-        for page in result.pages:
-            f.write(f'# Page {page["page_number"]}\n\n')
-            f.write(clean_pdf_text(page["page_number"], page['raw_text']))
-            f.write('\n\n')

crawl4ai/processors/pdf/utils.py

@@ -1,350 +0,0 @@
-import re
-
-def apply_png_predictor(data, width, bits, color_channels):
-    """Decode PNG predictor (PDF 1.5+ filter)"""
-    bytes_per_pixel = (bits * color_channels) // 8
-    if (bits * color_channels) % 8 != 0:
-        bytes_per_pixel += 1
-        
-    stride = width * bytes_per_pixel
-    scanline_length = stride + 1  # +1 for filter byte
-    
-    if len(data) % scanline_length != 0:
-        raise ValueError("Invalid scanline structure")
-    
-    num_lines = len(data) // scanline_length
-    output = bytearray()
-    prev_line = b'\x00' * stride
-    
-    for i in range(num_lines):
-        line = data[i*scanline_length:(i+1)*scanline_length]
-        filter_type = line[0]
-        filtered = line[1:]
-        
-        if filter_type == 0:  # None
-            decoded = filtered
-        elif filter_type == 1:  # Sub
-            decoded = bytearray(filtered)
-            for j in range(bytes_per_pixel, len(decoded)):
-                decoded[j] = (decoded[j] + decoded[j - bytes_per_pixel]) % 256
-        elif filter_type == 2:  # Up
-            decoded = bytearray([(filtered[j] + prev_line[j]) % 256 
-                               for j in range(len(filtered))])
-        elif filter_type == 3:  # Average
-            decoded = bytearray(filtered)
-            for j in range(len(decoded)):
-                left = decoded[j - bytes_per_pixel] if j >= bytes_per_pixel else 0
-                up = prev_line[j]
-                avg = (left + up) // 2
-                decoded[j] = (decoded[j] + avg) % 256
-        elif filter_type == 4:  # Paeth
-            decoded = bytearray(filtered)
-            for j in range(len(decoded)):
-                left = decoded[j - bytes_per_pixel] if j >= bytes_per_pixel else 0
-                up = prev_line[j]
-                up_left = prev_line[j - bytes_per_pixel] if j >= bytes_per_pixel else 0
-                paeth = paeth_predictor(left, up, up_left)
-                decoded[j] = (decoded[j] + paeth) % 256
-        else:
-            raise ValueError(f"Unsupported filter type: {filter_type}")
-        
-        output.extend(decoded)
-        prev_line = decoded
-    
-    return bytes(output)
-
-def paeth_predictor(a, b, c):
-    p = a + b - c
-    pa = abs(p - a)
-    pb = abs(p - b)
-    pc = abs(p - c)
-    if pa <= pb and pa <= pc:
-        return a
-    elif pb <= pc:
-        return b
-    else:
-        return c
-
-import re
-import html
-
-def clean_pdf_text_to_html(page_number, text):
-    # Decode Unicode escapes and handle surrogate pairs
-    try:
-        decoded = text.encode('latin-1').decode('unicode-escape')
-        decoded = decoded.encode('utf-16', 'surrogatepass').decode('utf-16')
-    except Exception as e:
-        decoded = text  # Fallback if decoding fails
-    
-    article_title_detected = False
-    # decoded = re.sub(r'\.\n', '.\n\n', decoded)
-    # decoded = re.sub(r'\.\n', '<|break|>', decoded)
-    lines = decoded.split('\n')
-    output = []
-    current_paragraph = []
-    in_header = False
-    email_pattern = re.compile(r'\{.*?\}')
-    affiliation_pattern = re.compile(r'^†')
-    quote_pattern = re.compile(r'^["“]')
-    author_pattern = re.compile(
-        r'^\s*[A-Z][a-zA-Z]+(?:\s+[A-Z][a-zA-Z]+)*\s*(?:[†*0-9]+)?'
-        r'(?:,\s*[A-Z][a-zA-Z]+(?:\s+[A-Z][a-zA-Z]+)*\s*(?:[†*0-9]+)?)*'
-        r'(?:,\s*(?:and|&)\s+[A-Z][a-zA-Z]+(?:\s+[A-Z][a-zA-Z]+)*\s*(?:[†*0-9]+)?)?\s*$'
-    )
-    
-    def flush_paragraph():
-        if current_paragraph:
-            para = ' '.join(current_paragraph)
-            para = re.sub(r'\s+', ' ', para).strip()
-            if para:
-                # escaped_para = html.escape(para)
-                escaped_para = para
-                # escaped_para = re.sub(r'\.\n', '.\n\n', escaped_para)
-                # Split escaped_para by <|break|> to avoid HTML escaping
-                escaped_para = escaped_para.split('.\n\n')
-                # Wrap each part in <p> tag
-                escaped_para = [f'<p>{part}</p>' for part in escaped_para]
-                output.append(f'<div class="paragraph">{"".join(escaped_para)}</div><hr/>')
-            current_paragraph.clear()
-    
-    for i, line in enumerate(lines):
-        line = line.strip()
-        
-        # Handle empty lines
-        if not line:
-            flush_paragraph()
-            continue
-            
-        # Detect article title (first line with reasonable length)
-        if not article_title_detected and i == 0 and 3 <= len(line.split()) <= 8 and len(lines) > 1:
-            flush_paragraph()
-            escaped_line = html.escape(line)
-            output.append(f'<h2>{escaped_line}</h2>')
-            article_title_detected = True
-            continue
-            
-        # Detect numbered headers like "2.1 Background"
-        numbered_header = re.match(r'^(\d+(?:\.\d+)*)\s+(.+)$', line)
-        if i > 0 and not lines[i-1].strip() and numbered_header:
-            flush_paragraph()
-            level = numbered_header.group(1).count('.') + 1
-            header_text = numbered_header.group(2)
-            md_level = min(level + 1, 6)
-            escaped_header = html.escape(header_text)
-            output.append(f'<h{md_level}>{escaped_header}</h{md_level}>')
-            in_header = True
-            continue
-            
-        # Detect authors
-        if page_number == 1 and author_pattern.match(line):
-            authors = re.sub(r'[†â€]', '', line)
-            authors = re.split(r', | and ', authors)
-            formatted_authors = []
-            for author in authors:
-                if author.strip():
-                    parts = [p for p in author.strip().split() if p]
-                    formatted = ' '.join(parts)
-                    escaped_author = html.escape(formatted)
-                    formatted_authors.append(f'<strong>{escaped_author}</strong>')
-            
-            if len(formatted_authors) > 1:
-                joined = ', '.join(formatted_authors[:-1]) + ' and ' + formatted_authors[-1]
-            else:
-                joined = formatted_authors[0]
-            
-            output.append(f'<p>{joined}</p>')
-            continue
-            
-        # Detect affiliation
-        if affiliation_pattern.match(line):
-            escaped_line = html.escape(line)
-            output.append(f'<p><em>{escaped_line}</em></p>')
-            continue
-            
-        # Detect emails
-        if email_pattern.match(line):
-            escaped_line = html.escape(line)
-            output.append(f'<p><code>{escaped_line}</code></p>')
-            continue
-            
-        # Detect section headers
-        if re.match(r'^(Abstract|\d+\s+[A-Z]|References|Appendix|Figure|Table)', line):
-            flush_paragraph()
-            escaped_line = html.escape(line)
-            output.append(f'<h2 class="section-header"><em>{escaped_line}</em></h2>')
-            in_header = True
-            continue
-            
-        # Handle quotes
-        if quote_pattern.match(line):
-            flush_paragraph()
-            escaped_line = html.escape(line)
-            output.append(f'<blockquote><p>{escaped_line}</p></blockquote>')
-            continue
-            
-        # Handle hyphenated words
-        if line.endswith('-'):
-            current_paragraph.append(line[:-1].strip())
-        else:
-            current_paragraph.append(line)
-            
-        # Handle paragraph breaks after headers
-        if in_header and not line.endswith(('.', '!', '?')):
-            flush_paragraph()
-            in_header = False
-    
-    flush_paragraph()
-    
-    # Post-process HTML
-    html_output = '\n'.join(output)
-    
-    # Fix common citation patterns
-    html_output = re.sub(r'\(([A-Z][a-z]+ et al\. \d{4})\)', r'<cite>\1</cite>', html_output)
-    
-    # Fix escaped characters
-    html_output = html_output.replace('\\ud835', '').replace('\\u2020', '†')
-    
-    # Remove leftover hyphens and fix spacing
-    html_output = re.sub(r'\s+-\s+', '', html_output)
-    html_output = re.sub(r'\s+([.,!?)])', r'\1', html_output)
-    
-    return html_output
-
-def clean_pdf_text(page_number, text):
-    # Decode Unicode escapes and handle surrogate pairs
-    try:
-        decoded = text.encode('latin-1').decode('unicode-escape')
-        decoded = decoded.encode('utf-16', 'surrogatepass').decode('utf-16')
-    except Exception as e:
-        decoded = text  # Fallback if decoding fails
-    
-    article_title_detected = False
-    decoded = re.sub(r'\.\n', '.\n\n', decoded)
-    lines = decoded.split('\n')
-    output = []
-    current_paragraph = []
-    in_header = False
-    email_pattern = re.compile(r'\{.*?\}')
-    affiliation_pattern = re.compile(r'^†')
-    quote_pattern = re.compile(r'^["“]')
-    author_pattern = re.compile(
-        r'^\s*[A-Z][a-zA-Z]+(?:\s+[A-Z][a-zA-Z]+)*\s*(?:[†*0-9]+)?'
-        r'(?:,\s*[A-Z][a-zA-Z]+(?:\s+[A-Z][a-zA-Z]+)*\s*(?:[†*0-9]+)?)*'
-        r'(?:,\s*(?:and|&)\s+[A-Z][a-zA-Z]+(?:\s+[A-Z][a-zA-Z]+)*\s*(?:[†*0-9]+)?)?\s*$'
-    )
-    
-    def flush_paragraph():
-        if current_paragraph:
-            para = ' '.join(current_paragraph)
-            para = re.sub(r'\s+', ' ', para).strip()
-            if para:
-                output.append(para)
-            current_paragraph.clear()
-    
-    for i, line in enumerate(lines):
-        line = line.strip()
-        
-        # Handle special patterns
-        if not line:
-            flush_paragraph()
-            continue
-            
-        # Detect headline (first line, reasonable length, surrounded by empty lines)
-        if not article_title_detected and i == 0 and 3 <= len(line.split()) <= 8 and (len(lines) > 1):
-            flush_paragraph()
-            output.append(f'## {line}')
-            continue
-            
-        # Detect paragraph breaks for ALL paragraphs
-        if not line and current_paragraph:
-            flush_paragraph()
-            output.append('')  # Add empty line between paragraphs
-            continue
-                    
-        # Detect numbered headers like "2.1 Background"
-        numbered_header = re.match(r'^(\d+(?:\.\d+)*)\s+(.+)$', line)
-        if not lines[i-1].strip() and numbered_header:
-            flush_paragraph()
-            level = numbered_header.group(1).count('.') + 1  # Convert 2.1 → level 2
-            header_text = numbered_header.group(2)
-            # Never go beyond ### for subsections
-            md_level = min(level + 1, 6)   # 1 → ##, 2 → ###, 3 → #### etc
-            output.append(f'{"#" * md_level} {header_text}')
-            in_header = True
-            continue            
-            
-                    
-        # Detect authors
-        if page_number == 1 and author_pattern.match(line):
-            # Clean and format author names
-            authors = re.sub(r'[†â€]', '', line)  # Remove affiliation markers
-            authors = re.split(r', | and ', authors)
-            formatted_authors = []
-            for author in authors:
-                if author.strip():
-                    # Handle "First Last" formatting
-                    parts = [p for p in author.strip().split() if p]
-                    formatted = ' '.join(parts)
-                    formatted_authors.append(f'**{formatted}**')
-            
-            # Join with commas and "and"
-            if len(formatted_authors) > 1:
-                joined = ', '.join(formatted_authors[:-1]) + ' and ' + formatted_authors[-1]
-            else:
-                joined = formatted_authors[0]
-            
-            output.append(joined)
-            continue
-            
-        # Detect affiliation
-        if affiliation_pattern.match(line):
-            output.append(f'*{line}*')
-            continue
-            
-        # Detect emails
-        if email_pattern.match(line):
-            output.append(f'`{line}`')
-            continue
-            
-        # Detect section headers
-        if re.match(r'^(Abstract|\d+\s+[A-Z]|References|Appendix|Figure|Table)', line):
-            flush_paragraph()
-            output.append(f'_[{line}]_')
-            in_header = True
-            continue
-            
-           
-        # Handle quotes
-        if quote_pattern.match(line):
-            flush_paragraph()
-            output.append(f'> {line}')
-            continue
-            
-        # Handle hyphenated words
-        if line.endswith('-'):
-            current_paragraph.append(line[:-1].strip())
-        else:
-            current_paragraph.append(line)
-            
-        # Handle paragraph breaks after headers
-        if in_header and not line.endswith(('.', '!', '?')):
-            flush_paragraph()
-            in_header = False
-    
-    flush_paragraph()
-    
-    # Post-processing
-    markdown = '\n\n'.join(output)
-    
-    # Fix common citation patterns
-    markdown = re.sub(r'\(([A-Z][a-z]+ et al\. \d{4})\)', r'[\1]', markdown)
-    
-    # Fix escaped characters
-    markdown = markdown.replace('\\ud835', '').replace('\\u2020', '†')
-    
-    # Remove leftover hyphens and fix spacing
-    markdown = re.sub(r'\s+-\s+', '', markdown)  # Join hyphenated words
-    markdown = re.sub(r'\s+([.,!?)])', r'\1', markdown)  # Fix punctuation spacing
-    
-    
-    return markdown

crawl4ai/prompts.py

@@ -198,7 +198,7 @@ Avoid Common Mistakes:
 - Do NOT add any comments using "//" or "#" in the JSON output. It causes parsing errors.
 - Make sure the JSON is properly formatted with curly braces, square brackets, and commas in the right places.
 - Do not miss closing </blocks> tag at the end of the JSON output.
-- Do not generate the Python code show me how to do the task, this is your task to extract the information and return it in JSON format.
+- Do not generate the Python coee show me how to do the task, this is your task to extract the information and return it in JSON format.
 
 Result
 Output the final list of JSON objects, wrapped in <blocks>...</blocks> XML tags. Make sure to close the tag properly."""
@@ -206,6 +206,17 @@ Output the final list of JSON objects, wrapped in <blocks>...</blocks> XML tags.
 
 PROMPT_FILTER_CONTENT = """Your task is to filter and convert HTML content into clean, focused markdown that's optimized for use with LLMs and information retrieval systems.
 
+INPUT HTML: 
+<|HTML_CONTENT_START|>
+{HTML}
+<|HTML_CONTENT_END|>
+
+
+SPECIFIC INSTRUCTION: 
+<|USER_INSTRUCTION_START|>
+{REQUEST}
+<|USER_INSTRUCTION_END|>
+
 TASK DETAILS:
 1. Content Selection
 - DO: Keep essential information, main content, key details
@@ -229,7 +240,15 @@ TASK DETAILS:
 - DON'T: Fragment related content
 - DON'T: Duplicate information
 
-IMPORTANT: If user specific instruction is provided, ignore above guideline and prioritize those requirements over these general guidelines.
+Example Input:
+<div class="main-content"><h1>Setup Guide</h1><p>Follow these steps...</p></div>
+<div class="sidebar">Related articles...</div>
+
+Example Output:
+# Setup Guide
+Follow these steps...
+
+IMPORTANT: If specific instruction is provided above, prioritize those requirements over these general guidelines.
 
 OUTPUT FORMAT: 
 Wrap your response in <content> tags. Use proper markdown throughout.
@@ -237,18 +256,7 @@ Wrap your response in <content> tags. Use proper markdown throughout.
 [Your markdown content here]
 </content>
 
-Begin filtering now.
-
---------------------------------------------
-
-<|HTML_CONTENT_START|>
-{HTML}
-<|HTML_CONTENT_END|>
-
-<|USER_INSTRUCTION_START|>
-{REQUEST}
-<|USER_INSTRUCTION_END|>
-"""
+Begin filtering now."""
 
 JSON_SCHEMA_BUILDER= """
 # HTML Schema Generation Instructions

crawl4ai/proxy_strategy.py

@@ -1,44 +0,0 @@
-from typing import List, Dict, Optional
-from abc import ABC, abstractmethod
-from itertools import cycle
-
-from crawl4ai.configs import ProxyConfig
-
-class ProxyRotationStrategy(ABC):
-    """Base abstract class for proxy rotation strategies"""
-    
-    @abstractmethod
-    async def get_next_proxy(self) -> Optional[Dict]:
-        """Get next proxy configuration from the strategy"""
-        pass
-
-    @abstractmethod
-    def add_proxies(self, proxies: List[Dict]):
-        """Add proxy configurations to the strategy"""
-        pass
-
-class RoundRobinProxyStrategy:
-    """Simple round-robin proxy rotation strategy using ProxyConfig objects"""
-
-    def __init__(self, proxies: List[ProxyConfig] = None):
-        """
-        Initialize with optional list of proxy configurations
-        
-        Args:
-            proxies: List of ProxyConfig objects
-        """
-        self._proxies = []
-        self._proxy_cycle = None
-        if proxies:
-            self.add_proxies(proxies)
-
-    def add_proxies(self, proxies: List[ProxyConfig]):
-        """Add new proxies to the rotation pool"""
-        self._proxies.extend(proxies)
-        self._proxy_cycle = cycle(self._proxies)
-
-    async def get_next_proxy(self) -> Optional[ProxyConfig]:
-        """Get next proxy in round-robin fashion"""
-        if not self._proxy_cycle:
-            return None
-        return next(self._proxy_cycle)

crawl4ai/types.py

@@ -1,14 +0,0 @@
-from typing import TYPE_CHECKING, Union
-
-AsyncWebCrawler = Union['AsyncWebCrawlerType']  # Note the string literal
-CrawlerRunConfig = Union['CrawlerRunConfigType']
-CrawlResult = Union['CrawlResultType']
-RunManyReturn = Union['RunManyReturnType']
-
-if TYPE_CHECKING:
-    from . import (
-        AsyncWebCrawler as AsyncWebCrawlerType,
-        CrawlerRunConfig as CrawlerRunConfigType,
-        CrawlResult as CrawlResultType,
-        RunManyReturn as RunManyReturnType,
-    )

crawl4ai/user_agent_generator.py

@@ -3,11 +3,12 @@ from typing import Optional, Literal, List, Dict, Tuple
 import re
 
 from abc import ABC, abstractmethod
+import random
 from fake_useragent import UserAgent
 import requests
 from lxml import html
 import json
-from typing import Union
+from typing import Optional, List, Union, Dict
 
 class UAGen(ABC):
    @abstractmethod

crawl4ai/utils.py

@@ -4,22 +4,17 @@ from concurrent.futures import ThreadPoolExecutor, as_completed
 from bs4 import BeautifulSoup, Comment, element, Tag, NavigableString
 import json
 import html
-import lxml
 import re
 import os
 import platform
 from .prompts import PROMPT_EXTRACT_BLOCKS
-from array import array
-from .html2text import html2text, CustomHTML2Text
-# from .config import *
-from .config import MIN_WORD_THRESHOLD, IMAGE_DESCRIPTION_MIN_WORD_THRESHOLD, IMAGE_SCORE_THRESHOLD, DEFAULT_PROVIDER, PROVIDER_MODELS
-import httpx
-from socket import gaierror
+from .config import *
 from pathlib import Path
-from typing import Dict, Any, List, Optional, Callable
+from typing import Dict, Any
 from urllib.parse import urljoin
 import requests
 from requests.exceptions import InvalidSchema
+from typing import Dict, Any
 import xxhash
 from colorama import Fore, Style, init
 import textwrap
@@ -30,187 +25,10 @@ import asyncio
 
 import sqlite3
 import hashlib
-
+from urllib.parse import urljoin, urlparse
 from urllib.robotparser import RobotFileParser
 import aiohttp
 
-from packaging import version
-from . import __version__
-from typing import Sequence
-
-from itertools import chain
-from collections import deque
-from typing import  Generator, Iterable
-
-def chunk_documents(
-    documents: Iterable[str],
-    chunk_token_threshold: int,
-    overlap: int,
-    word_token_rate: float = 0.75,
-    tokenizer: Optional[Callable[[str], List[str]]] = None,
-) -> Generator[str, None, None]:
-    """
-    Efficiently chunks documents into token-limited sections with overlap between chunks.
-
-    Args:
-        documents: Iterable of document strings
-        chunk_token_threshold: Maximum tokens per chunk
-        overlap: Number of tokens to overlap between chunks
-        word_token_rate: Token estimate per word when not using a tokenizer
-        tokenizer: Function that splits text into tokens (if available)
-
-    Yields:
-        Text chunks as strings
-    """
-    token_queue = deque()
-    contribution_queue = deque()
-    current_token_count = 0.0
-
-    for doc in documents:
-        # Tokenize document
-        if tokenizer:
-            tokens = tokenizer(doc)
-            contributions = [1.0] * len(tokens)
-        else:
-            tokens = doc.split()
-            contributions = [word_token_rate] * len(tokens)
-
-        # Add to processing queues
-        token_queue.extend(tokens)
-        contribution_queue.extend(contributions)
-        current_token_count += sum(contributions)
-
-        # Process full chunks
-        while current_token_count >= chunk_token_threshold:
-            # Find chunk split point
-            chunk_tokens = []
-            chunk_contrib = []
-            chunk_total = 0.0
-            
-            # Build chunk up to threshold
-            while contribution_queue:
-                next_contrib = contribution_queue[0]
-                if chunk_total + next_contrib > chunk_token_threshold:
-                    break
-                
-                chunk_total += next_contrib
-                chunk_contrib.append(contribution_queue.popleft())
-                chunk_tokens.append(token_queue.popleft())
-
-            # Handle edge case where first token exceeds threshold
-            if not chunk_contrib:  # Single token exceeds threshold
-                chunk_contrib.append(contribution_queue.popleft())
-                chunk_tokens.append(token_queue.popleft())
-
-            # Calculate overlap
-            overlap_total = 0.0
-            overlap_idx = 0
-            for contrib in reversed(chunk_contrib):
-                if overlap_total + contrib > overlap:
-                    break
-                overlap_total += contrib
-                overlap_idx += 1
-
-            # Prepend overlap to queues
-            if overlap_idx > 0:
-                overlap_tokens = chunk_tokens[-overlap_idx:]
-                overlap_contrib = chunk_contrib[-overlap_idx:]
-                
-                token_queue.extendleft(reversed(overlap_tokens))
-                contribution_queue.extendleft(reversed(overlap_contrib))
-                current_token_count += overlap_total
-
-            # Update current token count and yield chunk
-            current_token_count -= sum(chunk_contrib)
-            yield " ".join(chunk_tokens[:len(chunk_tokens)-overlap_idx] if overlap_idx else chunk_tokens)
-
-    # Yield remaining tokens
-    if token_queue:
-        yield " ".join(token_queue)
-
-def merge_chunks(
-    docs: Sequence[str], 
-    target_size: int,
-    overlap: int = 0,
-    word_token_ratio: float = 1.0,
-    splitter: Callable = None
-) -> List[str]:
-    """Merges documents into chunks of specified token size.
-    
-    Args:
-        docs: Input documents
-        target_size: Desired token count per chunk
-        overlap: Number of tokens to overlap between chunks
-        word_token_ratio: Multiplier for word->token conversion
-    """
-    # Pre-tokenize all docs and store token counts
-    splitter = splitter or str.split
-    token_counts = array('I')
-    all_tokens: List[List[str]] = []
-    total_tokens = 0
-    
-    for doc in docs:
-        tokens = doc.split()
-        count = int(len(tokens) * word_token_ratio)
-        if count:  # Skip empty docs
-            token_counts.append(count)
-            all_tokens.append(tokens)
-            total_tokens += count
-    
-    if not total_tokens:
-        return []
-
-    # Pre-allocate chunks
-    num_chunks = max(1, (total_tokens + target_size - 1) // target_size)
-    chunks: List[List[str]] = [[] for _ in range(num_chunks)]
-    
-    curr_chunk = 0
-    curr_size = 0
-    
-    # Distribute tokens
-    for tokens in chain.from_iterable(all_tokens):
-        if curr_size >= target_size and curr_chunk < num_chunks - 1:
-            if overlap > 0:
-                overlap_tokens = chunks[curr_chunk][-overlap:]
-                curr_chunk += 1
-                chunks[curr_chunk].extend(overlap_tokens)
-                curr_size = len(overlap_tokens)
-            else:
-                curr_chunk += 1
-                curr_size = 0
-                
-        chunks[curr_chunk].append(tokens)
-        curr_size += 1
-
-    # Return only non-empty chunks
-    return [' '.join(chunk) for chunk in chunks if chunk]
-
-
-class VersionManager:
-    def __init__(self):
-        self.home_dir = Path.home() / ".crawl4ai"
-        self.version_file = self.home_dir / "version.txt"
-
-    def get_installed_version(self):
-        """Get the version recorded in home directory"""
-        if not self.version_file.exists():
-            return None
-        try:
-            return version.parse(self.version_file.read_text().strip())
-        except Exception as _ex:
-            return None
-
-    def update_version(self):
-        """Update the version file to current library version"""
-        self.version_file.write_text(__version__.__version__)
-
-    def needs_update(self):
-        """Check if database needs update based on version"""
-        installed = self.get_installed_version()
-        current = version.parse(__version__.__version__)
-        return installed is None or installed < current
-
-
 class RobotsParser:
     # Default 7 days cache TTL
     CACHE_TTL = 7 * 24 * 60 * 60
@@ -289,7 +107,7 @@ class RobotsParser:
             domain = parsed.netloc
             if not domain:
                 return True
-        except Exception as _ex:
+        except:
             return True
 
         # Fast path - check cache first
@@ -309,7 +127,7 @@ class RobotsParser:
                             self._cache_rules(domain, rules)
                         else:
                             return True
-            except Exception as _ex:
+            except:
                 # On any error (timeout, connection failed, etc), allow access
                 return True
 
@@ -342,77 +160,6 @@ class InvalidCSSSelectorError(Exception):
     pass
 
 
-SPLITS = bytearray([
-    # Control chars (0-31) + space (32)
-    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-    # Special chars (33-47): ! " # $ % & ' ( ) * + , - . /
-    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-    # Numbers (48-57): Treat as non-splits
-    0,0,0,0,0,0,0,0,0,0,
-    # More special chars (58-64): : ; < = > ? @
-    1,1,1,1,1,1,1,
-    # Uppercase (65-90): Keep
-    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-    # More special chars (91-96): [ \ ] ^ _ `
-    1,1,1,1,1,1,
-    # Lowercase (97-122): Keep
-    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-    # Special chars (123-126): { | } ~
-    1,1,1,1,
-    # Extended ASCII
-    *([1] * 128)
-])
-
-# Additional split chars for HTML/code
-HTML_CODE_CHARS = {
-    # HTML specific
-    '•', '►', '▼', '©', '®', '™', '→', '⇒', '≈', '≤', '≥',
-    # Programming symbols  
-    '+=', '-=', '*=', '/=', '=>', '<=>', '!=', '==', '===',
-    '++', '--', '<<', '>>', '&&', '||', '??', '?:', '?.', 
-    # Common Unicode
-    '…', '"', '"', ''', ''', '«', '»', '—', '–',
-    # Additional splits
-    '+', '=', '~', '@', '#', '$', '%', '^', '&', '*',
-    '(', ')', '{', '}', '[', ']', '|', '\\', '/', '`',
-    '<', '>', ',', '.', '?', '!', ':', ';', '-', '_'
-}
-
-def advanced_split(text: str) -> list[str]:
-    result = []
-    word = array('u')
-    
-    i = 0
-    text_len = len(text)
-    
-    while i < text_len:
-        char = text[i]
-        o = ord(char)
-        
-        # Fast path for ASCII
-        if o < 256 and SPLITS[o]:
-            if word:
-                result.append(word.tounicode())
-                word = array('u')
-        # Check for multi-char symbols
-        elif i < text_len - 1:
-            two_chars = char + text[i + 1]
-            if two_chars in HTML_CODE_CHARS:
-                if word:
-                    result.append(word.tounicode())
-                    word = array('u')
-                i += 1  # Skip next char since we used it
-            else:
-                word.append(char)
-        else:
-            word.append(char)
-        i += 1
-            
-    if word:
-        result.append(word.tounicode())
-        
-    return result
-
 def create_box_message(
     message: str,
     type: str = "info",
@@ -1377,7 +1124,7 @@ def get_content_of_website_optimized(
             src = img.get("src", "")
             if base64_pattern.match(src):
                 img["src"] = base64_pattern.sub("", src)
-        except Exception as _ex:
+        except:
             pass
 
     cleaned_html = str(body).replace("\n\n", "\n").replace("  ", " ")
@@ -1415,7 +1162,7 @@ def extract_metadata_using_lxml(html, doc=None):
 
     if doc is None:
         try:
-            doc = lxml.html.document_fromstring(html)
+            doc = lhtml.document_fromstring(html)
         except Exception:
             return {}
 
@@ -1731,10 +1478,10 @@ def extract_blocks_batch(batch_data, provider="groq/llama3-70b-8192", api_token=
 
     messages = []
 
-    for url, _html in batch_data:
+    for url, html in batch_data:
         variable_values = {
             "URL": url,
-            "HTML": _html,
+            "HTML": html,
         }
 
         prompt_with_variables = PROMPT_EXTRACT_BLOCKS
@@ -1916,7 +1663,7 @@ def fast_format_html(html_string):
     indent = 0
     indent_str = "  "  # Two spaces for indentation
     formatted = []
-    # in_content = False
+    in_content = False
 
     # Split by < and > to separate tags and content
     parts = html_string.replace(">", ">\n").replace("<", "\n<").split("\n")
@@ -2460,83 +2207,3 @@ def get_error_context(exc_info, context_lines: int = 5):
         "function": func_name,
         "code_context": code_context,
     }
-
-def truncate(value, threshold):
-    if len(value) > threshold:
-        return value[:threshold] + '...'  # Add ellipsis to indicate truncation
-    return value
-
-def optimize_html(html_str, threshold=200):
-    root = lxml.html.fromstring(html_str)
-    
-    for _element in root.iter():
-        # Process attributes
-        for attr in list(_element.attrib):
-            _element.attrib[attr] = truncate(_element.attrib[attr], threshold)
-        
-        # Process text content
-        if _element.text and len(_element.text) > threshold:
-            _element.text = truncate(_element.text, threshold)
-            
-        # Process tail text
-        if _element.tail and len(_element.tail) > threshold:
-            _element.tail = truncate(_element.tail, threshold)
-    
-    return lxml.html.tostring(root, encoding='unicode', pretty_print=False)
-
-class HeadPeekr:
-    @staticmethod
-    async def fetch_head_section(url, timeout=0.3):
-        headers = {
-            "User-Agent": "Mozilla/5.0 (compatible; CrawlBot/1.0)",
-            "Accept": "text/html",
-            "Connection": "close"  # Force close after response
-        }
-        try:
-            async with httpx.AsyncClient(timeout=timeout) as client:
-                response = await client.get(url, headers=headers, follow_redirects=True)
-                
-                # Handle redirects explicitly by using the final URL
-                if response.url != url:
-                    url = str(response.url)
-                    response = await client.get(url, headers=headers)
-                
-                content = b""
-                async for chunk in response.aiter_bytes():
-                    content += chunk
-                    if b"</head>" in content:
-                        break  # Stop after detecting </head>
-                return content.split(b"</head>")[0] + b"</head>"
-        except (httpx.HTTPError, gaierror) :
-            return None
-
-    @staticmethod
-    async def peek_html(url, timeout=0.3):
-        head_section = await HeadPeekr.fetch_head_section(url, timeout=timeout)
-        if head_section:
-            return head_section.decode("utf-8", errors="ignore")
-        return None
-
-    @staticmethod
-    def extract_meta_tags(head_content: str):
-        meta_tags = {}
-        
-        # Find all meta tags
-        meta_pattern = r'<meta[^>]+>'
-        for meta_tag in re.finditer(meta_pattern, head_content):
-            tag = meta_tag.group(0)
-            
-            # Extract name/property and content
-            name_match = re.search(r'name=["\'](.*?)["\']', tag)
-            property_match = re.search(r'property=["\'](.*?)["\']', tag)
-            content_match = re.search(r'content=["\'](.*?)["\']', tag)
-            
-            if content_match and (name_match or property_match):
-                key = name_match.group(1) if name_match else property_match.group(1)
-                meta_tags[key] = content_match.group(1)
-                
-        return meta_tags
-
-    def get_title(head_content: str):
-        title_match = re.search(r'<title>(.*?)</title>', head_content, re.IGNORECASE | re.DOTALL)
-        return title_match.group(1) if title_match else None

deploy/docker/.dockerignore

@@ -1,31 +0,0 @@
-# .dockerignore
-*
-
-# Allow specific files and directories when using local installation
-!crawl4ai/
-!docs/
-!deploy/docker/
-!setup.py
-!pyproject.toml
-!README.md
-!LICENSE
-!MANIFEST.in
-!setup.cfg
-!mkdocs.yml
-
-.git/
-__pycache__/
-*.pyc
-*.pyo
-*.pyd
-.DS_Store
-.env
-.venv
-venv/
-tests/
-coverage.xml
-*.log
-*.swp
-*.egg-info/
-dist/
-build/

deploy/docker/.llm.env.example

@@ -1,8 +0,0 @@
-# LLM Provider Keys
-OPENAI_API_KEY=your_openai_key_here
-DEEPSEEK_API_KEY=your_deepseek_key_here
-ANTHROPIC_API_KEY=your_anthropic_key_here
-GROQ_API_KEY=your_groq_key_here
-TOGETHER_API_KEY=your_together_key_here
-MISTRAL_API_KEY=your_mistral_key_here
-GEMINI_API_TOKEN=your_gemini_key_here

deploy/docker/README.md

@@ -1,830 +0,0 @@
-# Crawl4AI Docker Guide 🐳
-
-## Table of Contents
-- [Prerequisites](#prerequisites)
-- [Installation](#installation)
-  - [Local Build](#local-build)
-  - [Docker Hub](#docker-hub)
-- [Dockerfile Parameters](#dockerfile-parameters)
-- [Using the API](#using-the-api)
-  - [Understanding Request Schema](#understanding-request-schema)
-  - [REST API Examples](#rest-api-examples)
-  - [Python SDK](#python-sdk)
-- [Metrics & Monitoring](#metrics--monitoring)
-- [Deployment Scenarios](#deployment-scenarios)
-- [Complete Examples](#complete-examples)
-- [Getting Help](#getting-help)
-
-## Prerequisites
-
-Before we dive in, make sure you have:
-- Docker installed and running (version 20.10.0 or higher)
-- At least 4GB of RAM available for the container
-- Python 3.10+ (if using the Python SDK)
-- Node.js 16+ (if using the Node.js examples)
-
-> 💡 **Pro tip**: Run `docker info` to check your Docker installation and available resources.
-
-## Installation
-
-### Local Build
-
-Let's get your local environment set up step by step!
-
-#### 1. Building the Image
-
-First, clone the repository and build the Docker image:
-
-```bash
-# Clone the repository
-git clone https://github.com/unclecode/crawl4ai.git
-cd crawl4ai/deploy
-
-# Build the Docker image
-docker build --platform=linux/amd64 --no-cache -t crawl4ai .
-
-# Or build for arm64
-docker build --platform=linux/arm64 --no-cache -t crawl4ai .
-```
-
-#### 2. Environment Setup
-
-If you plan to use LLMs (Language Models), you'll need to set up your API keys. Create a `.llm.env` file:
-
-```env
-# OpenAI
-OPENAI_API_KEY=sk-your-key
-
-# Anthropic
-ANTHROPIC_API_KEY=your-anthropic-key
-
-# DeepSeek
-DEEPSEEK_API_KEY=your-deepseek-key
-
-# Check out https://docs.litellm.ai/docs/providers for more providers!
-```
-
-> 🔑 **Note**: Keep your API keys secure! Never commit them to version control.
-
-#### 3. Running the Container
-
-You have several options for running the container:
-
-Basic run (no LLM support):
-```bash
-docker run -d -p 8000:8000 --name crawl4ai crawl4ai
-```
-
-With LLM support:
-```bash
-docker run -d -p 8000:8000 \
-  --env-file .llm.env \
-  --name crawl4ai \
-  crawl4ai
-```
-
-Using host environment variables (Not a good practice, but works for local testing):
-```bash
-docker run -d -p 8000:8000 \
-  --env-file .llm.env \
-  --env "$(env)" \
-  --name crawl4ai \
-  crawl4ai
-```
-
-#### Multi-Platform Build
-For distributing your image across different architectures, use `buildx`:
-
-```bash
-# Set up buildx builder
-docker buildx create --use
-
-# Build for multiple platforms
-docker buildx build \
-  --platform linux/amd64,linux/arm64 \
-  -t crawl4ai \
-  --push \
-  .
-```
-
-> 💡 **Note**: Multi-platform builds require Docker Buildx and need to be pushed to a registry.
-
-#### Development Build
-For development, you might want to enable all features:
-
-```bash
-docker build -t crawl4ai
-  --build-arg INSTALL_TYPE=all \
-  --build-arg PYTHON_VERSION=3.10 \
-  --build-arg ENABLE_GPU=true \
-  .
-```
-
-#### GPU-Enabled Build
-If you plan to use GPU acceleration:
-
-```bash
-docker build -t crawl4ai
-  --build-arg ENABLE_GPU=true \
-  deploy/docker/
-```
-
-### Build Arguments Explained
-
-| Argument | Description | Default | Options |
-|----------|-------------|---------|----------|
-| PYTHON_VERSION | Python version | 3.10 | 3.8, 3.9, 3.10 |
-| INSTALL_TYPE | Feature set | default | default, all, torch, transformer |
-| ENABLE_GPU | GPU support | false | true, false |
-| APP_HOME | Install path | /app | any valid path |
-
-### Build Best Practices
-
-1. **Choose the Right Install Type**
-   - `default`: Basic installation, smallest image, to be honest, I use this most of the time.
-   - `all`: Full features, larger image (include transformer, and nltk, make sure you really need them)
-
-2. **Platform Considerations**
-   - Let Docker auto-detect platform unless you need cross-compilation
-   - Use --platform for specific architecture requirements
-   - Consider buildx for multi-architecture distribution
-
-3. **Performance Optimization**
-   - The image automatically includes platform-specific optimizations
-   - AMD64 gets OpenMP optimizations
-   - ARM64 gets OpenBLAS optimizations
-
-### Docker Hub
-
-> 🚧 Coming soon! The image will be available at `crawl4ai`. Stay tuned!
-
-## Using the API
-
-In the following sections, we discuss two ways to communicate with the Docker server. One option is to use the client SDK that I developed for Python, and I will soon develop one for Node.js. I highly recommend this approach to avoid mistakes. Alternatively, you can take a more technical route by using the JSON structure and passing it to all the URLs, which I will explain in detail.
-
-### Python SDK
-
-The SDK makes things easier! Here's how to use it:
-
-```python
-from crawl4ai.docker_client import Crawl4aiDockerClient
-from crawl4ai import BrowserConfig, CrawlerRunConfig
-
-async def main():
-    async with Crawl4aiDockerClient(base_url="http://localhost:8000", verbose=True) as client:
-      # If JWT is enabled, you can authenticate like this: (more on this later)
-        # await client.authenticate("test@example.com")
-        
-        # Non-streaming crawl
-        results = await client.crawl(
-            ["https://example.com", "https://python.org"],
-            browser_config=BrowserConfig(headless=True),
-            crawler_config=CrawlerRunConfig()
-        )
-        print(f"Non-streaming results: {results}")
-        
-        # Streaming crawl
-        crawler_config = CrawlerRunConfig(stream=True)
-        async for result in await client.crawl(
-            ["https://example.com", "https://python.org"],
-            browser_config=BrowserConfig(headless=True),
-            crawler_config=crawler_config
-        ):
-            print(f"Streamed result: {result}")
-        
-        # Get schema
-        schema = await client.get_schema()
-        print(f"Schema: {schema}")
-
-if __name__ == "__main__":
-    asyncio.run(main())
-```
-
-`Crawl4aiDockerClient` is an async context manager that handles the connection for you. You can pass in optional parameters for more control:
-
-- `base_url` (str): Base URL of the Crawl4AI Docker server
-- `timeout` (float): Default timeout for requests in seconds
-- `verify_ssl` (bool): Whether to verify SSL certificates
-- `verbose` (bool): Whether to show logging output
-- `log_file` (str, optional): Path to log file if file logging is desired
-
-This client SDK generates a properly structured JSON request for the server's HTTP API.
-
-## Second Approach: Direct API Calls
-
-This is super important! The API expects a specific structure that matches our Python classes. Let me show you how it works.
-
-### Understanding Configuration Structure
-
-Let's dive deep into how configurations work in Crawl4AI. Every configuration object follows a consistent pattern of `type` and `params`. This structure enables complex, nested configurations while maintaining clarity.
-
-#### The Basic Pattern
-
-Try this in Python to understand the structure:
-```python
-from crawl4ai import BrowserConfig
-
-# Create a config and see its structure
-config = BrowserConfig(headless=True)
-print(config.dump())
-```
-
-This outputs:
-```json
-{
-    "type": "BrowserConfig",
-    "params": {
-        "headless": true
-    }
-}
-```
-
-#### Simple vs Complex Values
-
-The structure follows these rules:
-- Simple values (strings, numbers, booleans, lists) are passed directly
-- Complex values (classes, dictionaries) use the type-params pattern
-
-For example, with dictionaries:
-```json
-{
-    "browser_config": {
-        "type": "BrowserConfig",
-        "params": {
-            "headless": true,           // Simple boolean - direct value
-            "viewport": {               // Complex dictionary - needs type-params
-                "type": "dict",
-                "value": {
-                    "width": 1200,
-                    "height": 800
-                }
-            }
-        }
-    }
-}
-```
-
-#### Strategy Pattern and Nesting
-
-Strategies (like chunking or content filtering) demonstrate why we need this structure. Consider this chunking configuration:
-
-```json
-{
-    "crawler_config": {
-        "type": "CrawlerRunConfig",
-        "params": {
-            "chunking_strategy": {
-                "type": "RegexChunking",      // Strategy implementation
-                "params": {
-                    "patterns": ["\n\n", "\\.\\s+"]
-                }
-            }
-        }
-    }
-}
-```
-
-Here, `chunking_strategy` accepts any chunking implementation. The `type` field tells the system which strategy to use, and `params` configures that specific strategy.
-
-#### Complex Nested Example
-
-Let's look at a more complex example with content filtering:
-
-```json
-{
-    "crawler_config": {
-        "type": "CrawlerRunConfig",
-        "params": {
-            "markdown_generator": {
-                "type": "DefaultMarkdownGenerator",
-                "params": {
-                    "content_filter": {
-                        "type": "PruningContentFilter",
-                        "params": {
-                            "threshold": 0.48,
-                            "threshold_type": "fixed"
-                        }
-                    }
-                }
-            }
-        }
-    }
-}
-```
-
-This shows how deeply configurations can nest while maintaining a consistent structure.
-
-#### Quick Grammar Overview
-```
-config := {
-    "type": string,
-    "params": {
-        key: simple_value | complex_value
-    }
-}
-
-simple_value := string | number | boolean | [simple_value]
-complex_value := config | dict_value
-
-dict_value := {
-    "type": "dict",
-    "value": object
-}
-```
-
-#### Important Rules 🚨
-
-- Always use the type-params pattern for class instances
-- Use direct values for primitives (numbers, strings, booleans)
-- Wrap dictionaries with {"type": "dict", "value": {...}}
-- Arrays/lists are passed directly without type-params
-- All parameters are optional unless specifically required
-
-#### Pro Tip 💡
-
-The easiest way to get the correct structure is to:
-1. Create configuration objects in Python
-2. Use the `dump()` method to see their JSON representation
-3. Use that JSON in your API calls
-
-Example:
-```python
-from crawl4ai import CrawlerRunConfig, PruningContentFilter
-
-config = CrawlerRunConfig(
-    content_filter=PruningContentFilter(threshold=0.48)
-)
-print(config.dump())  # Use this JSON in your API calls
-```
-
-
-#### More Examples
-
-**Advanced Crawler Configuration**
-
-```json
-{
-    "urls": ["https://example.com"],
-    "crawler_config": {
-        "type": "CrawlerRunConfig",
-        "params": {
-            "cache_mode": "bypass",
-            "markdown_generator": {
-                "type": "DefaultMarkdownGenerator",
-                "params": {
-                    "content_filter": {
-                        "type": "PruningContentFilter",
-                        "params": {
-                            "threshold": 0.48,
-                            "threshold_type": "fixed",
-                            "min_word_threshold": 0
-                        }
-                    }
-                }
-            }
-        }
-    }
-}
-```
-
-**Extraction Strategy**:
-
-```json
-{
-    "crawler_config": {
-        "type": "CrawlerRunConfig",
-        "params": {
-            "extraction_strategy": {
-                "type": "JsonCssExtractionStrategy",
-                "params": {
-                    "schema": {
-                        "baseSelector": "article.post",
-                        "fields": [
-                            {"name": "title", "selector": "h1", "type": "text"},
-                            {"name": "content", "selector": ".content", "type": "html"}
-                        ]
-                    }
-                }
-            }
-        }
-    }
-}
-```
-
-**LLM Extraction Strategy**
-
-```json
-{
-  "crawler_config": {
-    "type": "CrawlerRunConfig",
-    "params": {
-      "extraction_strategy": {
-        "type": "LLMExtractionStrategy",
-        "params": {
-          "instruction": "Extract article title, author, publication date and main content",
-          "provider": "openai/gpt-4",
-          "api_token": "your-api-token",
-          "schema": {
-            "type": "dict",
-            "value": {
-              "title": "Article Schema",
-              "type": "object",
-              "properties": {
-                "title": {
-                  "type": "string",
-                  "description": "The article's headline"
-                },
-                "author": {
-                  "type": "string",
-                  "description": "The author's name"
-                },
-                "published_date": {
-                  "type": "string",
-                  "format": "date-time",
-                  "description": "Publication date and time"
-                },
-                "content": {
-                  "type": "string",
-                  "description": "The main article content"
-                }
-              },
-              "required": ["title", "content"]
-            }
-          }
-        }
-      }
-    }
-  }
-}
-```
-
-**Deep Crawler Example**
-
-```json
-{
-  "crawler_config": {
-    "type": "CrawlerRunConfig",
-    "params": {
-      "deep_crawl_strategy": {
-        "type": "BFSDeepCrawlStrategy",
-        "params": {
-          "max_depth": 3,
-          "filter_chain": {
-            "type": "FilterChain",
-            "params": {
-              "filters": [
-                {
-                  "type": "ContentTypeFilter",
-                  "params": {
-                    "allowed_types": ["text/html", "application/xhtml+xml"]
-                  }
-                },
-                {
-                  "type": "DomainFilter",
-                  "params": {
-                    "allowed_domains": ["blog.*", "docs.*"],
-                  }
-                }
-              ]
-            }
-          },
-          "url_scorer": {
-            "type": "CompositeScorer",
-            "params": {
-              "scorers": [
-                {
-                  "type": "KeywordRelevanceScorer",
-                  "params": {
-                    "keywords": ["tutorial", "guide", "documentation"],
-                  }
-                },
-                {
-                  "type": "PathDepthScorer",
-                  "params": {
-                    "weight": 0.5,
-                    "optimal_depth": 3  
-                  }
-                }
-              ]
-            }
-          }
-        }
-      }
-    }
-  }
-}
-```
-
-### REST API Examples
-
-Let's look at some practical examples:
-
-#### Simple Crawl
-
-```python
-import requests
-
-crawl_payload = {
-    "urls": ["https://example.com"],
-    "browser_config": {"headless": True},
-    "crawler_config": {"stream": False}
-}
-response = requests.post(
-    "http://localhost:8000/crawl",
-    # headers={"Authorization": f"Bearer {token}"},  # If JWT is enabled, more on this later
-    json=crawl_payload
-)
-print(response.json())  # Print the response for debugging
-```
-
-#### Streaming Results
-
-```python
-async def test_stream_crawl(session, token: str):
-    """Test the /crawl/stream endpoint with multiple URLs."""
-    url = "http://localhost:8000/crawl/stream"
-    payload = {
-        "urls": [
-            "https://example.com",
-            "https://example.com/page1",  
-            "https://example.com/page2",  
-            "https://example.com/page3",  
-        ],
-        "browser_config": {"headless": True, "viewport": {"width": 1200}},
-        "crawler_config": {"stream": True, "cache_mode": "aggressive"}
-    }
-
-    # headers = {"Authorization": f"Bearer {token}"} # If JWT is enabled, more on this later
-    
-    try:
-        async with session.post(url, json=payload, headers=headers) as response:
-            status = response.status
-            print(f"Status: {status} (Expected: 200)")
-            assert status == 200, f"Expected 200, got {status}"
-            
-            # Read streaming response line-by-line (NDJSON)
-            async for line in response.content:
-                if line:
-                    data = json.loads(line.decode('utf-8').strip())
-                    print(f"Streamed Result: {json.dumps(data, indent=2)}")
-    except Exception as e:
-        print(f"Error in streaming crawl test: {str(e)}")
-```
-
-## Metrics & Monitoring
-
-Keep an eye on your crawler with these endpoints:
-
-- `/health` - Quick health check
-- `/metrics` - Detailed Prometheus metrics
-- `/schema` - Full API schema
-
-Example health check:
-```bash
-curl http://localhost:8000/health
-```
-
-## Deployment Scenarios
-
-> 🚧 Coming soon! We'll cover:
-> - Kubernetes deployment
-> - Cloud provider setups (AWS, GCP, Azure)
-> - High-availability configurations
-> - Load balancing strategies
-
-## Complete Examples
-
-Check out the `examples` folder in our repository for full working examples! Here are two to get you started:
-[Using Client SDK](https://github.com/unclecode/crawl4ai/blob/main/docs/examples/docker_python_sdk_example.py)
-[Using REST API](https://github.com/unclecode/crawl4ai/blob/main/docs/examples/docker_python_rest_api_example.py)
-
-## Server Configuration
-
-The server's behavior can be customized through the `config.yml` file. Let's explore how to configure your Crawl4AI server for optimal performance and security.
-
-### Understanding config.yml
-
-The configuration file is located at `deploy/docker/config.yml`. You can either modify this file before building the image or mount a custom configuration when running the container.
-
-Here's a detailed breakdown of the configuration options:
-
-```yaml
-# Application Configuration
-app:
-  title: "Crawl4AI API"           # Server title in OpenAPI docs
-  version: "1.0.0"               # API version
-  host: "0.0.0.0"               # Listen on all interfaces
-  port: 8000                    # Server port
-  reload: True                  # Enable hot reloading (development only)
-  timeout_keep_alive: 300       # Keep-alive timeout in seconds
-
-# Rate Limiting Configuration
-rate_limiting:
-  enabled: True                 # Enable/disable rate limiting
-  default_limit: "100/minute"   # Rate limit format: "number/timeunit"
-  trusted_proxies: []          # List of trusted proxy IPs
-  storage_uri: "memory://"     # Use "redis://localhost:6379" for production
-
-# Security Configuration
-security:
-  enabled: false               # Master toggle for security features
-  jwt_enabled: true            # Enable JWT authentication
-  https_redirect: True         # Force HTTPS
-  trusted_hosts: ["*"]         # Allowed hosts (use specific domains in production)
-  headers:                     # Security headers
-    x_content_type_options: "nosniff"
-    x_frame_options: "DENY"
-    content_security_policy: "default-src 'self'"
-    strict_transport_security: "max-age=63072000; includeSubDomains"
-
-# Crawler Configuration
-crawler:
-  memory_threshold_percent: 95.0  # Memory usage threshold
-  rate_limiter:
-    base_delay: [1.0, 2.0]      # Min and max delay between requests
-  timeouts:
-    stream_init: 30.0           # Stream initialization timeout
-    batch_process: 300.0        # Batch processing timeout
-
-# Logging Configuration
-logging:
-  level: "INFO"                 # Log level (DEBUG, INFO, WARNING, ERROR)
-  format: "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
-
-# Observability Configuration
-observability:
-  prometheus:
-    enabled: True              # Enable Prometheus metrics
-    endpoint: "/metrics"       # Metrics endpoint
-  health_check:
-    endpoint: "/health"        # Health check endpoint
-```
-
-### JWT Authentication
-
-When `security.jwt_enabled` is set to `true` in your config.yml, all endpoints require JWT authentication via bearer tokens. Here's how it works:
-
-#### Getting a Token
-```python
-POST /token
-Content-Type: application/json
-
-{
-    "email": "user@example.com"
-}
-```
-
-The endpoint returns:
-```json
-{
-    "email": "user@example.com",
-    "access_token": "eyJ0eXAiOiJKV1QiLCJhbGciOi...",
-    "token_type": "bearer"
-}
-```
-
-#### Using the Token
-Add the token to your requests:
-```bash
-curl -H "Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGci..." http://localhost:8000/crawl
-```
-
-Using the Python SDK:
-```python
-from crawl4ai.docker_client import Crawl4aiDockerClient
-
-async with Crawl4aiDockerClient() as client:
-    # Authenticate first
-    await client.authenticate("user@example.com")
-    
-    # Now all requests will include the token automatically
-    result = await client.crawl(urls=["https://example.com"])
-```
-
-#### Production Considerations 💡
-The default implementation uses a simple email verification. For production use, consider:
-- Email verification via OTP/magic links
-- OAuth2 integration
-- Rate limiting token generation
-- Token expiration and refresh mechanisms
-- IP-based restrictions
-
-### Configuration Tips and Best Practices
-
-1. **Production Settings** 🏭
-
-   ```yaml
-   app:
-     reload: False              # Disable reload in production
-     timeout_keep_alive: 120    # Lower timeout for better resource management
-   
-   rate_limiting:
-     storage_uri: "redis://redis:6379"  # Use Redis for distributed rate limiting
-     default_limit: "50/minute"         # More conservative rate limit
-   
-   security:
-     enabled: true                      # Enable all security features
-     trusted_hosts: ["your-domain.com"] # Restrict to your domain
-   ```
-
-2. **Development Settings** 🛠️
-
-   ```yaml
-   app:
-     reload: True               # Enable hot reloading
-     timeout_keep_alive: 300    # Longer timeout for debugging
-   
-   logging:
-     level: "DEBUG"            # More verbose logging
-   ```
-
-3. **High-Traffic Settings** 🚦
-
-   ```yaml
-   crawler:
-     memory_threshold_percent: 85.0  # More conservative memory limit
-     rate_limiter:
-       base_delay: [2.0, 4.0]       # More aggressive rate limiting
-   ```
-
-### Customizing Your Configuration
-
-#### Method 1: Pre-build Configuration
-
-```bash
-# Copy and modify config before building
-cd crawl4ai/deploy
-vim custom-config.yml # Or use any editor
-
-# Build with custom config
-docker build --platform=linux/amd64 --no-cache -t crawl4ai:latest .
-```
-
-#### Method 2: Build-time Configuration
-
-Use a custom config during build:
-
-```bash
-# Build with custom config
-docker build --platform=linux/amd64 --no-cache \
-  --build-arg CONFIG_PATH=/path/to/custom-config.yml \ 
-  -t crawl4ai:latest .
-```
-
-#### Method 3: Runtime Configuration
-```bash
-# Mount custom config at runtime
-docker run -d -p 8000:8000 \
-  -v $(pwd)/custom-config.yml:/app/config.yml \
-  crawl4ai-server:prod
-```
-
-> 💡 Note: When using Method 2, `/path/to/custom-config.yml` is relative to deploy directory.
-> 💡 Note: When using Method 3, ensure your custom config file has all required fields as the container will use this instead of the built-in config.
-
-### Configuration Recommendations
-
-1. **Security First** 🔒
-   - Always enable security in production
-   - Use specific trusted_hosts instead of wildcards
-   - Set up proper rate limiting to protect your server
-   - Consider your environment before enabling HTTPS redirect
-
-2. **Resource Management** 💻
-   - Adjust memory_threshold_percent based on available RAM
-   - Set timeouts according to your content size and network conditions
-   - Use Redis for rate limiting in multi-container setups
-
-3. **Monitoring** 📊
-   - Enable Prometheus if you need metrics
-   - Set DEBUG logging in development, INFO in production
-   - Regular health check monitoring is crucial
-
-4. **Performance Tuning** ⚡
-   - Start with conservative rate limiter delays
-   - Increase batch_process timeout for large content
-   - Adjust stream_init timeout based on initial response times
-
-## Getting Help
-
-We're here to help you succeed with Crawl4AI! Here's how to get support:
-
-- 📖 Check our [full documentation](https://docs.crawl4ai.com)
-- 🐛 Found a bug? [Open an issue](https://github.com/unclecode/crawl4ai/issues)
-- 💬 Join our [Discord community](https://discord.gg/crawl4ai)
-- ⭐ Star us on GitHub to show support!
-
-## Summary
-
-In this guide, we've covered everything you need to get started with Crawl4AI's Docker deployment:
-- Building and running the Docker container
-- Configuring the environment
-- Making API requests with proper typing
-- Using the Python SDK
-- Monitoring your deployment
-
-Remember, the examples in the `examples` folder are your friends - they show real-world usage patterns that you can adapt for your needs.
-
-Keep exploring, and don't hesitate to reach out if you need help! We're building something amazing together. 🚀
-
-Happy crawling! 🕷️

deploy/docker/api.py

@@ -1,442 +0,0 @@
-import os
-import json
-import asyncio
-from typing import List, Tuple
-
-import logging
-from typing import Optional, AsyncGenerator
-from urllib.parse import unquote
-from fastapi import HTTPException, Request, status
-from fastapi.background import BackgroundTasks
-from fastapi.responses import JSONResponse
-from redis import asyncio as aioredis
-
-from crawl4ai import (
-    AsyncWebCrawler,
-    CrawlerRunConfig,
-    LLMExtractionStrategy,
-    CacheMode,
-    BrowserConfig,
-    MemoryAdaptiveDispatcher,
-    RateLimiter
-)
-from crawl4ai.utils import perform_completion_with_backoff
-from crawl4ai.content_filter_strategy import (
-    PruningContentFilter,
-    BM25ContentFilter,
-    LLMContentFilter
-)
-from crawl4ai.markdown_generation_strategy import DefaultMarkdownGenerator
-from crawl4ai.content_scraping_strategy import LXMLWebScrapingStrategy
-
-from utils import (
-    TaskStatus,
-    FilterType,
-    get_base_url,
-    is_task_id,
-    should_cleanup_task,
-    decode_redis_hash
-)
-
-logger = logging.getLogger(__name__)
-
-async def handle_llm_qa(
-    url: str,
-    query: str,
-    config: dict
-) -> str:
-    """Process QA using LLM with crawled content as context."""
-    try:
-        # Extract base URL by finding last '?q=' occurrence
-        last_q_index = url.rfind('?q=')
-        if last_q_index != -1:
-            url = url[:last_q_index]
-
-        # Get markdown content
-        async with AsyncWebCrawler() as crawler:
-            result = await crawler.arun(url)
-            if not result.success:
-                raise HTTPException(
-                    status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
-                    detail=result.error_message
-                )
-            content = result.markdown.fit_markdown
-
-        # Create prompt and get LLM response
-        prompt = f"""Use the following content as context to answer the question.
-    Content:
-    {content}
-
-    Question: {query}
-
-    Answer:"""
-
-        response = perform_completion_with_backoff(
-            provider=config["llm"]["provider"],
-            prompt_with_variables=prompt,
-            api_token=os.environ.get(config["llm"].get("api_key_env", ""))
-        )
-
-        return response.choices[0].message.content
-    except Exception as e:
-        logger.error(f"QA processing error: {str(e)}", exc_info=True)
-        raise HTTPException(
-            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
-            detail=str(e)
-        )
-
-async def process_llm_extraction(
-    redis: aioredis.Redis,
-    config: dict,
-    task_id: str,
-    url: str,
-    instruction: str,
-    schema: Optional[str] = None,
-    cache: str = "0"
-) -> None:
-    """Process LLM extraction in background."""
-    try:
-        # If config['llm'] has api_key then ignore the api_key_env
-        api_key = ""
-        if "api_key" in config["llm"]:
-            api_key = config["llm"]["api_key"]
-        else:
-            api_key = os.environ.get(config["llm"].get("api_key_env", None), "")
-        llm_strategy = LLMExtractionStrategy(
-            provider=config["llm"]["provider"],
-            api_token=api_key,
-            instruction=instruction,
-            schema=json.loads(schema) if schema else None,
-        )
-
-        cache_mode = CacheMode.ENABLED if cache == "1" else CacheMode.WRITE_ONLY
-
-        async with AsyncWebCrawler() as crawler:
-            result = await crawler.arun(
-                url=url,
-                config=CrawlerRunConfig(
-                    extraction_strategy=llm_strategy,
-                    scraping_strategy=LXMLWebScrapingStrategy(),
-                    cache_mode=cache_mode
-                )
-            )
-
-        if not result.success:
-            await redis.hset(f"task:{task_id}", mapping={
-                "status": TaskStatus.FAILED,
-                "error": result.error_message
-            })
-            return
-
-        try:
-            content = json.loads(result.extracted_content)
-        except json.JSONDecodeError:
-            content = result.extracted_content
-        await redis.hset(f"task:{task_id}", mapping={
-            "status": TaskStatus.COMPLETED,
-            "result": json.dumps(content)
-        })
-
-    except Exception as e:
-        logger.error(f"LLM extraction error: {str(e)}", exc_info=True)
-        await redis.hset(f"task:{task_id}", mapping={
-            "status": TaskStatus.FAILED,
-            "error": str(e)
-        })
-
-async def handle_markdown_request(
-    url: str,
-    filter_type: FilterType,
-    query: Optional[str] = None,
-    cache: str = "0",
-    config: Optional[dict] = None
-) -> str:
-    """Handle markdown generation requests."""
-    try:
-        decoded_url = unquote(url)
-        if not decoded_url.startswith(('http://', 'https://')):
-            decoded_url = 'https://' + decoded_url
-
-        if filter_type == FilterType.RAW:
-            md_generator = DefaultMarkdownGenerator()
-        else:
-            content_filter = {
-                FilterType.FIT: PruningContentFilter(),
-                FilterType.BM25: BM25ContentFilter(user_query=query or ""),
-                FilterType.LLM: LLMContentFilter(
-                    provider=config["llm"]["provider"],
-                    api_token=os.environ.get(config["llm"].get("api_key_env", None), ""),
-                    instruction=query or "Extract main content"
-                )
-            }[filter_type]
-            md_generator = DefaultMarkdownGenerator(content_filter=content_filter)
-
-        cache_mode = CacheMode.ENABLED if cache == "1" else CacheMode.WRITE_ONLY
-
-        async with AsyncWebCrawler() as crawler:
-            result = await crawler.arun(
-                url=decoded_url,
-                config=CrawlerRunConfig(
-                    markdown_generator=md_generator,
-                    scraping_strategy=LXMLWebScrapingStrategy(),
-                    cache_mode=cache_mode
-                )
-            )
-            
-            if not result.success:
-                raise HTTPException(
-                    status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
-                    detail=result.error_message
-                )
-
-            return (result.markdown.raw_markdown 
-                   if filter_type == FilterType.RAW 
-                   else result.markdown.fit_markdown)
-
-    except Exception as e:
-        logger.error(f"Markdown error: {str(e)}", exc_info=True)
-        raise HTTPException(
-            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
-            detail=str(e)
-        )
-
-async def handle_llm_request(
-    redis: aioredis.Redis,
-    background_tasks: BackgroundTasks,
-    request: Request,
-    input_path: str,
-    query: Optional[str] = None,
-    schema: Optional[str] = None,
-    cache: str = "0",
-    config: Optional[dict] = None
-) -> JSONResponse:
-    """Handle LLM extraction requests."""
-    base_url = get_base_url(request)
-    
-    try:
-        if is_task_id(input_path):
-            return await handle_task_status(
-                redis, input_path, base_url
-            )
-
-        if not query:
-            return JSONResponse({
-                "message": "Please provide an instruction",
-                "_links": {
-                    "example": {
-                        "href": f"{base_url}/llm/{input_path}?q=Extract+main+content",
-                        "title": "Try this example"
-                    }
-                }
-            })
-
-        return await create_new_task(
-            redis,
-            background_tasks,
-            input_path,
-            query,
-            schema,
-            cache,
-            base_url,
-            config
-        )
-
-    except Exception as e:
-        logger.error(f"LLM endpoint error: {str(e)}", exc_info=True)
-        return JSONResponse({
-            "error": str(e),
-            "_links": {
-                "retry": {"href": str(request.url)}
-            }
-        }, status_code=status.HTTP_500_INTERNAL_SERVER_ERROR)
-
-async def handle_task_status(
-    redis: aioredis.Redis,
-    task_id: str,
-    base_url: str
-) -> JSONResponse:
-    """Handle task status check requests."""
-    task = await redis.hgetall(f"task:{task_id}")
-    if not task:
-        raise HTTPException(
-            status_code=status.HTTP_404_NOT_FOUND,
-            detail="Task not found"
-        )
-
-    task = decode_redis_hash(task)
-    response = create_task_response(task, task_id, base_url)
-
-    if task["status"] in [TaskStatus.COMPLETED, TaskStatus.FAILED]:
-        if should_cleanup_task(task["created_at"]):
-            await redis.delete(f"task:{task_id}")
-
-    return JSONResponse(response)
-
-async def create_new_task(
-    redis: aioredis.Redis,
-    background_tasks: BackgroundTasks,
-    input_path: str,
-    query: str,
-    schema: Optional[str],
-    cache: str,
-    base_url: str,
-    config: dict
-) -> JSONResponse:
-    """Create and initialize a new task."""
-    decoded_url = unquote(input_path)
-    if not decoded_url.startswith(('http://', 'https://')):
-        decoded_url = 'https://' + decoded_url
-
-    from datetime import datetime
-    task_id = f"llm_{int(datetime.now().timestamp())}_{id(background_tasks)}"
-    
-    await redis.hset(f"task:{task_id}", mapping={
-        "status": TaskStatus.PROCESSING,
-        "created_at": datetime.now().isoformat(),
-        "url": decoded_url
-    })
-
-    background_tasks.add_task(
-        process_llm_extraction,
-        redis,
-        config,
-        task_id,
-        decoded_url,
-        query,
-        schema,
-        cache
-    )
-
-    return JSONResponse({
-        "task_id": task_id,
-        "status": TaskStatus.PROCESSING,
-        "url": decoded_url,
-        "_links": {
-            "self": {"href": f"{base_url}/llm/{task_id}"},
-            "status": {"href": f"{base_url}/llm/{task_id}"}
-        }
-    })
-
-def create_task_response(task: dict, task_id: str, base_url: str) -> dict:
-    """Create response for task status check."""
-    response = {
-        "task_id": task_id,
-        "status": task["status"],
-        "created_at": task["created_at"],
-        "url": task["url"],
-        "_links": {
-            "self": {"href": f"{base_url}/llm/{task_id}"},
-            "refresh": {"href": f"{base_url}/llm/{task_id}"}
-        }
-    }
-
-    if task["status"] == TaskStatus.COMPLETED:
-        response["result"] = json.loads(task["result"])
-    elif task["status"] == TaskStatus.FAILED:
-        response["error"] = task["error"]
-
-    return response
-
-async def stream_results(crawler: AsyncWebCrawler, results_gen: AsyncGenerator) -> AsyncGenerator[bytes, None]:
-    """Stream results with heartbeats and completion markers."""
-    import json
-    from utils import datetime_handler
-
-    try:
-        async for result in results_gen:
-            try:
-                result_dict = result.model_dump()
-                logger.info(f"Streaming result for {result_dict.get('url', 'unknown')}")
-                data = json.dumps(result_dict, default=datetime_handler) + "\n"
-                yield data.encode('utf-8')
-            except Exception as e:
-                logger.error(f"Serialization error: {e}")
-                error_response = {"error": str(e), "url": getattr(result, 'url', 'unknown')}
-                yield (json.dumps(error_response) + "\n").encode('utf-8')
-
-        yield json.dumps({"status": "completed"}).encode('utf-8')
-        
-    except asyncio.CancelledError:
-        logger.warning("Client disconnected during streaming")
-    finally:
-        try:
-            await crawler.close()
-        except Exception as e:
-            logger.error(f"Crawler cleanup error: {e}")
-
-async def handle_crawl_request(
-    urls: List[str],
-    browser_config: dict,
-    crawler_config: dict,
-    config: dict
-) -> dict:
-    """Handle non-streaming crawl requests."""
-    try:
-        browser_config = BrowserConfig.load(browser_config)
-        crawler_config = CrawlerRunConfig.load(crawler_config)
-
-        dispatcher = MemoryAdaptiveDispatcher(
-            memory_threshold_percent=config["crawler"]["memory_threshold_percent"],
-            rate_limiter=RateLimiter(
-                base_delay=tuple(config["crawler"]["rate_limiter"]["base_delay"])
-            )
-        )
-
-        async with AsyncWebCrawler(config=browser_config) as crawler:
-            results = await crawler.arun_many(
-                urls=urls,
-                config=crawler_config,
-                dispatcher=dispatcher
-            )
-            
-            return {
-                "success": True,
-                "results": [result.model_dump() for result in results]
-            }
-
-    except Exception as e:
-        logger.error(f"Crawl error: {str(e)}", exc_info=True)
-        raise HTTPException(
-            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
-            detail=str(e)
-        )
-
-async def handle_stream_crawl_request(
-    urls: List[str],
-    browser_config: dict,
-    crawler_config: dict,
-    config: dict
-) -> Tuple[AsyncWebCrawler, AsyncGenerator]:
-    """Handle streaming crawl requests."""
-    try:
-        browser_config = BrowserConfig.load(browser_config)
-        browser_config.verbose = True
-        crawler_config = CrawlerRunConfig.load(crawler_config)
-        crawler_config.scraping_strategy = LXMLWebScrapingStrategy()
-
-        dispatcher = MemoryAdaptiveDispatcher(
-            memory_threshold_percent=config["crawler"]["memory_threshold_percent"],
-            rate_limiter=RateLimiter(
-                base_delay=tuple(config["crawler"]["rate_limiter"]["base_delay"])
-            )
-        )
-
-        crawler = AsyncWebCrawler(config=browser_config)
-        await crawler.start()
-
-        results_gen = await crawler.arun_many(
-            urls=urls,
-            config=crawler_config,
-            dispatcher=dispatcher
-        )
-
-        return crawler, results_gen
-
-    except Exception as e:
-        if 'crawler' in locals():
-            await crawler.close()
-        logger.error(f"Stream crawl error: {str(e)}", exc_info=True)
-        raise HTTPException(
-            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
-            detail=str(e)
-        )

deploy/docker/auth.py

@@ -1,46 +0,0 @@
-import os
-from datetime import datetime, timedelta, timezone
-from typing import Dict, Optional
-from jwt import JWT, jwk_from_dict
-from jwt.utils import get_int_from_datetime
-from fastapi import Depends, HTTPException
-from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
-from pydantic import EmailStr
-from pydantic.main import BaseModel
-import base64
-
-instance = JWT()
-security = HTTPBearer()
-SECRET_KEY = os.environ.get("SECRET_KEY", "mysecret")
-ACCESS_TOKEN_EXPIRE_MINUTES = 60
-
-def get_jwk_from_secret(secret: str):
-    """Convert a secret string into a JWK object."""
-    secret_bytes = secret.encode('utf-8')
-    b64_secret = base64.urlsafe_b64encode(secret_bytes).rstrip(b'=').decode('utf-8')
-    return jwk_from_dict({"kty": "oct", "k": b64_secret})
-
-def create_access_token(data: dict, expires_delta: Optional[timedelta] = None) -> str:
-    """Create a JWT access token with an expiration."""
-    to_encode = data.copy()
-    expire = datetime.now(timezone.utc) + (expires_delta or timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES))
-    to_encode.update({"exp": get_int_from_datetime(expire)})
-    signing_key = get_jwk_from_secret(SECRET_KEY)
-    return instance.encode(to_encode, signing_key, alg='HS256')
-
-def verify_token(credentials: HTTPAuthorizationCredentials = Depends(security)) -> Dict:
-    """Verify the JWT token from the Authorization header."""
-    token = credentials.credentials
-    verifying_key = get_jwk_from_secret(SECRET_KEY)
-    try:
-        payload = instance.decode(token, verifying_key, do_time_check=True, algorithms='HS256')
-        return payload
-    except Exception:
-        raise HTTPException(status_code=401, detail="Invalid or expired token")
-
-def get_token_dependency(config: Dict):
-    """Return the token dependency if JWT is enabled, else None."""
-    return verify_token if config.get("security", {}).get("jwt_enabled", False) else None
-
-class TokenRequest(BaseModel):
-    email: EmailStr

deploy/docker/config.yml

@@ -1,71 +0,0 @@
-# Application Configuration
-app:
-  title: "Crawl4AI API"
-  version: "1.0.0"
-  host: "0.0.0.0"
-  port: 8000
-  reload: True
-  timeout_keep_alive: 300
-
-# Default LLM Configuration
-llm:
-  provider: "openai/gpt-4o-mini"
-  api_key_env: "OPENAI_API_KEY"
-  # api_key: sk-...  # If you pass the API key directly then api_key_env will be ignored
-
-# Redis Configuration
-redis:
-  host: "localhost"
-  port: 6379
-  db: 0
-  password: ""
-  ssl: False
-  ssl_cert_reqs: None
-  ssl_ca_certs: None
-  ssl_certfile: None
-  ssl_keyfile: None
-  ssl_cert_reqs: None
-  ssl_ca_certs: None
-  ssl_certfile: None
-  ssl_keyfile: None
-
-# Rate Limiting Configuration
-rate_limiting:
-  enabled: True
-  default_limit: "1000/minute"
-  trusted_proxies: []
-  storage_uri: "memory://"  # Use "redis://localhost:6379" for production
-
-# Security Configuration
-security:
-  enabled: true 
-  jwt_enabled: true 
-  https_redirect: false
-  trusted_hosts: ["*"]
-  headers:
-    x_content_type_options: "nosniff"
-    x_frame_options: "DENY"
-    content_security_policy: "default-src 'self'"
-    strict_transport_security: "max-age=63072000; includeSubDomains"
-
-# Crawler Configuration
-crawler:
-  memory_threshold_percent: 95.0
-  rate_limiter:
-    base_delay: [1.0, 2.0]
-  timeouts:
-    stream_init: 30.0  # Timeout for stream initialization
-    batch_process: 300.0  # Timeout for batch processing
-
-# Logging Configuration
-logging:
-  level: "INFO"
-  format: "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
-
-# Observability Configuration
-observability:
-  prometheus:
-    enabled: True
-    endpoint: "/metrics"
-  health_check:
-    endpoint: "/health"

deploy/docker/requirements.txt

@@ -1,10 +0,0 @@
-crawl4ai
-fastapi
-uvicorn
-gunicorn>=23.0.0
-slowapi>=0.1.9
-prometheus-fastapi-instrumentator>=7.0.2
-redis>=5.2.1
-jwt>=1.3.1
-dnspython>=2.7.0
-email-validator>=2.2.0

deploy/docker/server.py

@@ -1,181 +0,0 @@
-import os
-import sys
-import time
-from typing import List, Optional, Dict
-from fastapi import FastAPI, HTTPException, Request, Query, Path, Depends
-from fastapi.responses import StreamingResponse, RedirectResponse, PlainTextResponse, JSONResponse
-from fastapi.middleware.httpsredirect import HTTPSRedirectMiddleware
-from fastapi.middleware.trustedhost import TrustedHostMiddleware
-from pydantic import BaseModel, Field
-from slowapi import Limiter
-from slowapi.util import get_remote_address
-from prometheus_fastapi_instrumentator import Instrumentator
-from redis import asyncio as aioredis
-
-sys.path.append(os.path.dirname(os.path.realpath(__file__)))
-from utils import FilterType, load_config, setup_logging, verify_email_domain
-from api import (
-    handle_markdown_request,
-    handle_llm_qa,
-    handle_stream_crawl_request,
-    handle_crawl_request,
-    stream_results
-)
-from auth import create_access_token, get_token_dependency, TokenRequest  # Import from auth.py
-
-__version__ = "0.2.6"
-
-class CrawlRequest(BaseModel):
-    urls: List[str] = Field(min_length=1, max_length=100)
-    browser_config: Optional[Dict] = Field(default_factory=dict)
-    crawler_config: Optional[Dict] = Field(default_factory=dict)
-
-# Load configuration and setup
-config = load_config()
-setup_logging(config)
-
-# Initialize Redis
-redis = aioredis.from_url(config["redis"].get("uri", "redis://localhost"))
-
-# Initialize rate limiter
-limiter = Limiter(
-    key_func=get_remote_address,
-    default_limits=[config["rate_limiting"]["default_limit"]],
-    storage_uri=config["rate_limiting"]["storage_uri"]
-)
-
-app = FastAPI(
-    title=config["app"]["title"],
-    version=config["app"]["version"]
-)
-
-# Configure middleware
-def setup_security_middleware(app, config):
-    sec_config = config.get("security", {})
-    if sec_config.get("enabled", False):
-        if sec_config.get("https_redirect", False):
-            app.add_middleware(HTTPSRedirectMiddleware)
-        if sec_config.get("trusted_hosts", []) != ["*"]:
-            app.add_middleware(TrustedHostMiddleware, allowed_hosts=sec_config["trusted_hosts"])
-
-setup_security_middleware(app, config)
-
-# Prometheus instrumentation
-if config["observability"]["prometheus"]["enabled"]:
-    Instrumentator().instrument(app).expose(app)
-
-# Get token dependency based on config
-token_dependency = get_token_dependency(config)
-
-# Middleware for security headers
-@app.middleware("http")
-async def add_security_headers(request: Request, call_next):
-    response = await call_next(request)
-    if config["security"]["enabled"]:
-        response.headers.update(config["security"]["headers"])
-    return response
-
-# Token endpoint (always available, but usage depends on config)
-@app.post("/token")
-async def get_token(request_data: TokenRequest):
-    if not verify_email_domain(request_data.email):
-        raise HTTPException(status_code=400, detail="Invalid email domain")
-    token = create_access_token({"sub": request_data.email})
-    return {"email": request_data.email, "access_token": token, "token_type": "bearer"}
-
-# Endpoints with conditional auth
-@app.get("/md/{url:path}")
-@limiter.limit(config["rate_limiting"]["default_limit"])
-async def get_markdown(
-    request: Request,
-    url: str,
-    f: FilterType = FilterType.FIT,
-    q: Optional[str] = None,
-    c: Optional[str] = "0",
-    token_data: Optional[Dict] = Depends(token_dependency)
-):
-    result = await handle_markdown_request(url, f, q, c, config)
-    return PlainTextResponse(result)
-
-@app.get("/llm/{url:path}", description="URL should be without http/https prefix")
-async def llm_endpoint(
-    request: Request,
-    url: str = Path(...),
-    q: Optional[str] = Query(None),
-    token_data: Optional[Dict] = Depends(token_dependency)
-):
-    if not q:
-        raise HTTPException(status_code=400, detail="Query parameter 'q' is required")
-    if not url.startswith(('http://', 'https://')):
-        url = 'https://' + url
-    try:
-        answer = await handle_llm_qa(url, q, config)
-        return JSONResponse({"answer": answer})
-    except Exception as e:
-        raise HTTPException(status_code=500, detail=str(e))
-
-@app.get("/schema")
-async def get_schema():
-    from crawl4ai import BrowserConfig, CrawlerRunConfig
-    return {"browser": BrowserConfig().dump(), "crawler": CrawlerRunConfig().dump()}
-
-@app.get(config["observability"]["health_check"]["endpoint"])
-async def health():
-    return {"status": "ok", "timestamp": time.time(), "version": __version__}
-
-@app.get(config["observability"]["prometheus"]["endpoint"])
-async def metrics():
-    return RedirectResponse(url=config["observability"]["prometheus"]["endpoint"])
-
-@app.post("/crawl")
-@limiter.limit(config["rate_limiting"]["default_limit"])
-async def crawl(
-    request: Request,
-    crawl_request: CrawlRequest,
-    token_data: Optional[Dict] = Depends(token_dependency)
-):
-    if not crawl_request.urls:
-        raise HTTPException(status_code=400, detail="At least one URL required")
-    
-    results = await handle_crawl_request(
-        urls=crawl_request.urls,
-        browser_config=crawl_request.browser_config,
-        crawler_config=crawl_request.crawler_config,
-        config=config
-    )
-
-    return JSONResponse(results)
-
-
-@app.post("/crawl/stream")
-@limiter.limit(config["rate_limiting"]["default_limit"])
-async def crawl_stream(
-    request: Request,
-    crawl_request: CrawlRequest,
-    token_data: Optional[Dict] = Depends(token_dependency)
-):
-    if not crawl_request.urls:
-        raise HTTPException(status_code=400, detail="At least one URL required")
-
-    crawler, results_gen = await handle_stream_crawl_request(
-        urls=crawl_request.urls,
-        browser_config=crawl_request.browser_config,
-        crawler_config=crawl_request.crawler_config,
-        config=config
-    )
-
-    return StreamingResponse(
-        stream_results(crawler, results_gen),
-        media_type='application/x-ndjson',
-        headers={'Cache-Control': 'no-cache', 'Connection': 'keep-alive', 'X-Stream-Status': 'active'}
-    )
-
-if __name__ == "__main__":
-    import uvicorn
-    uvicorn.run(
-        "server:app",
-        host=config["app"]["host"],
-        port=config["app"]["port"],
-        reload=config["app"]["reload"],
-        timeout_keep_alive=config["app"]["timeout_keep_alive"]
-    )

deploy/docker/supervisord.conf

@@ -1,12 +0,0 @@
-[supervisord]
-nodaemon=true
-
-[program:redis]
-command=redis-server
-autorestart=true
-priority=10
-
-[program:gunicorn]
-command=gunicorn --bind 0.0.0.0:8000 --workers 4 --threads 2 --timeout 300 --graceful-timeout 60 --keep-alive 65 --log-level debug --worker-class uvicorn.workers.UvicornWorker --max-requests 1000 --max-requests-jitter 50 server:app
-autorestart=true
-priority=20

deploy/docker/utils.py

@@ -1,66 +0,0 @@
-import dns.resolver
-import logging
-import yaml
-from datetime import datetime
-from enum import Enum
-from pathlib import Path
-from fastapi import Request
-from typing import Dict, Optional
-
-class TaskStatus(str, Enum):
-    PROCESSING = "processing"
-    FAILED = "failed"
-    COMPLETED = "completed"
-
-class FilterType(str, Enum):
-    RAW = "raw"
-    FIT = "fit"
-    BM25 = "bm25"
-    LLM = "llm"
-
-def load_config() -> Dict:
-    """Load and return application configuration."""
-    config_path = Path(__file__).parent / "config.yml"
-    with open(config_path, "r") as config_file:
-        return yaml.safe_load(config_file)
-
-def setup_logging(config: Dict) -> None:
-    """Configure application logging."""
-    logging.basicConfig(
-        level=config["logging"]["level"],
-        format=config["logging"]["format"]
-    )
-
-def get_base_url(request: Request) -> str:
-    """Get base URL including scheme and host."""
-    return f"{request.url.scheme}://{request.url.netloc}"
-
-def is_task_id(value: str) -> bool:
-    """Check if the value matches task ID pattern."""
-    return value.startswith("llm_") and "_" in value
-
-def datetime_handler(obj: any) -> Optional[str]:
-    """Handle datetime serialization for JSON."""
-    if hasattr(obj, 'isoformat'):
-        return obj.isoformat()
-    raise TypeError(f"Object of type {type(obj)} is not JSON serializable")
-
-def should_cleanup_task(created_at: str) -> bool:
-    """Check if task should be cleaned up based on creation time."""
-    created = datetime.fromisoformat(created_at)
-    return (datetime.now() - created).total_seconds() > 3600
-
-def decode_redis_hash(hash_data: Dict[bytes, bytes]) -> Dict[str, str]:
-    """Decode Redis hash data from bytes to strings."""
-    return {k.decode('utf-8'): v.decode('utf-8') for k, v in hash_data.items()}
-
-
-
-def verify_email_domain(email: str) -> bool:
-    try:
-        domain = email.split('@')[1]
-        # Try to resolve MX records for the domain.
-        records = dns.resolver.resolve(domain, 'MX')
-        return True if records else False
-    except Exception as e:
-        return False

docker-compose.yml

@@ -1,30 +1,3 @@
-# Base configuration (not a service, just a reusable config block)
-x-base-config: &base-config
-  ports:
-    - "11235:11235"
-    - "8000:8000"
-    - "9222:9222"
-    - "8080:8080"
-  environment:
-    - CRAWL4AI_API_TOKEN=${CRAWL4AI_API_TOKEN:-}
-    - OPENAI_API_KEY=${OPENAI_API_KEY:-}
-    - CLAUDE_API_KEY=${CLAUDE_API_KEY:-}
-  volumes:
-    - /dev/shm:/dev/shm
-  deploy:
-    resources:
-      limits:
-        memory: 4G
-      reservations:
-        memory: 1G
-  restart: unless-stopped
-  healthcheck:
-    test: ["CMD", "curl", "-f", "http://localhost:11235/health"]
-    interval: 30s
-    timeout: 10s
-    retries: 3
-    start_period: 40s
-
 services:
   # Local build services for different platforms
   crawl4ai-amd64:
@@ -38,7 +11,9 @@ services:
       platforms:
         - linux/amd64
     profiles: ["local-amd64"]
-    <<: *base-config  # extends yerine doğrudan yapılandırmayı dahil ettik
+    extends: &base-config
+      file: docker-compose.yml
+      service: base-config
 
   crawl4ai-arm64:
     build:
@@ -51,15 +26,42 @@ services:
       platforms:
         - linux/arm64
     profiles: ["local-arm64"]
-    <<: *base-config
+    extends: *base-config
 
   # Hub services for different platforms and versions
   crawl4ai-hub-amd64:
     image: unclecode/crawl4ai:${VERSION:-basic}-amd64
     profiles: ["hub-amd64"]
-    <<: *base-config
+    extends: *base-config
 
   crawl4ai-hub-arm64:
     image: unclecode/crawl4ai:${VERSION:-basic}-arm64
     profiles: ["hub-arm64"]
-    <<: *base-config
+    extends: *base-config
+
+  # Base configuration to be extended
+  base-config:
+    ports:
+      - "11235:11235"
+      - "8000:8000"
+      - "9222:9222"
+      - "8080:8080"
+    environment:
+      - CRAWL4AI_API_TOKEN=${CRAWL4AI_API_TOKEN:-}
+      - OPENAI_API_KEY=${OPENAI_API_KEY:-}
+      - CLAUDE_API_KEY=${CLAUDE_API_KEY:-}
+    volumes:
+      - /dev/shm:/dev/shm
+    deploy:
+      resources:
+        limits:
+          memory: 4G
+        reservations:
+          memory: 1G
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:11235/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s

docs/assets/powered-by-dark.svg

@@ -1,25 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="120" height="35" viewBox="0 0 120 35">
-  <!-- Dark Theme -->
-  <g>
-    <defs>
-      <pattern id="halftoneDark" width="4" height="4" patternUnits="userSpaceOnUse">
-        <circle cx="2" cy="2" r="1" fill="#eee" opacity="0.1"/>
-      </pattern>
-      <pattern id="halftoneTextDark" width="3" height="3" patternUnits="userSpaceOnUse">
-        <circle cx="1.5" cy="1.5" r="2" fill="#aaa" opacity="0.2"/>
-      </pattern>
-    </defs>
-    <!-- White border - added as outer rectangle -->
-    <rect width="120" height="35" rx="5" fill="#111"/>
-    <!-- Dark background slightly smaller to show thicker border -->
-    <rect x="2" y="2" width="116" height="31" rx="4" fill="#1a1a1a"/>
-    <rect x="2" y="2" width="116" height="31" rx="4" fill="url(#halftoneDark)"/>
-    
-    <!-- Logo with halftone -->
-    <path d="M30 17.5 a7.5 7.5 0 1 1 -15 0 a7.5 7.5 0 1 1 15 0" fill="none" stroke="#eee" stroke-width="2"/>
-    <path d="M18 17.5 L27 17.5" stroke="#eee" stroke-width="2"/>
-    <circle cx="22.5" cy="17.5" r="2" fill="#eee"/>
-    
-    <text x="40" y="23" fill="#eee" font-family="Arial, sans-serif" font-weight="500" font-size="14">Crawl4AI</text>
-  </g>
-</svg>

docs/assets/powered-by-disco.svg

@@ -1,64 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="120" height="35" viewBox="0 0 120 35">
-  <g>
-    <defs>
-      <pattern id="cyberdots" width="4" height="4" patternUnits="userSpaceOnUse">
-        <circle cx="2" cy="2" r="1">
-          <animate attributeName="fill" 
-                   values="#FF2EC4;#8B5CF6;#0BC5EA;#FF2EC4" 
-                   dur="6s" 
-                   repeatCount="indefinite"/>
-          <animate attributeName="opacity" 
-                   values="0.2;0.4;0.2" 
-                   dur="4s" 
-                   repeatCount="indefinite"/>
-        </circle>
-      </pattern>
-      <filter id="neonGlow" x="-20%" y="-20%" width="140%" height="140%">
-        <feGaussianBlur stdDeviation="1" result="blur"/>
-        <feFlood flood-color="#FF2EC4" flood-opacity="0.2">
-          <animate attributeName="flood-color"
-                   values="#FF2EC4;#8B5CF6;#0BC5EA;#FF2EC4"
-                   dur="8s"
-                   repeatCount="indefinite"/>
-        </feFlood>
-        <feComposite in2="blur" operator="in"/>
-        <feMerge>
-          <feMergeNode/>
-          <feMergeNode in="SourceGraphic"/>
-        </feMerge>
-      </filter>
-    </defs>
-    
-    <rect width="120" height="35" rx="5" fill="#0A0A0F"/>
-    <rect x="2" y="2" width="116" height="31" rx="4" fill="#16161E"/>
-    <rect x="2" y="2" width="116" height="31" rx="4" fill="url(#cyberdots)"/>
-    
-    <!-- Logo with animated neon -->
-    <path d="M30 17.5 a7.5 7.5 0 1 1 -15 0 a7.5 7.5 0 1 1 15 0" fill="none" stroke="#8B5CF6" stroke-width="2" filter="url(#neonGlow)">
-      <animate attributeName="stroke"
-               values="#FF2EC4;#8B5CF6;#0BC5EA;#FF2EC4"
-               dur="8s"
-               repeatCount="indefinite"/>
-    </path>
-    <path d="M18 17.5 L27 17.5" stroke="#8B5CF6" stroke-width="2" filter="url(#neonGlow)">
-      <animate attributeName="stroke"
-               values="#FF2EC4;#8B5CF6;#0BC5EA;#FF2EC4"
-               dur="8s"
-               repeatCount="indefinite"/>
-    </path>
-    <circle cx="22.5" cy="17.5" r="2" fill="#0BC5EA">
-      <animate attributeName="fill" 
-               values="#0BC5EA;#FF2EC4;#8B5CF6;#0BC5EA" 
-               dur="8s" 
-               repeatCount="indefinite"/>
-    </circle>
-    
-    <text x="40" y="23" font-family="Arial, sans-serif" font-weight="500" font-size="14" filter="url(#neonGlow)">
-      <animate attributeName="fill"
-               values="#FF2EC4;#8B5CF6;#0BC5EA;#FF2EC4"
-               dur="8s"
-               repeatCount="indefinite"/>
-      Crawl4AI
-    </text>
-  </g>
-</svg>

docs/assets/powered-by-light.svg

@@ -1,21 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="120" height="35" viewBox="0 0 120 35">
-  <g>
-    <defs>
-      <pattern id="halftoneLight" width="4" height="4" patternUnits="userSpaceOnUse">
-        <circle cx="2" cy="2" r="1" fill="#111" opacity="0.1"/>
-      </pattern>
-    </defs>
-    <!-- Dark border -->
-    <rect width="120" height="35" rx="5" fill="#DDD"/>
-    <!-- Light background -->
-    <rect x="2" y="2" width="116" height="31" rx="4" fill="#fff"/>
-    <rect x="2" y="2" width="116" height="31" rx="4" fill="url(#halftoneLight)"/>
-    
-    <!-- Logo -->
-    <path d="M30 17.5 a7.5 7.5 0 1 1 -15 0 a7.5 7.5 0 1 1 15 0" fill="none" stroke="#111" stroke-width="2"/>
-    <path d="M18 17.5 L27 17.5" stroke="#111" stroke-width="2"/>
-    <circle cx="22.5" cy="17.5" r="2" fill="#111"/>
-    
-    <text x="40" y="23" fill="#111" font-family="Arial, sans-serif" font-weight="500" font-size="14">Crawl4AI</text>
-  </g>
-</svg>

docs/assets/powered-by-night.svg

@@ -1,28 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="120" height="35" viewBox="0 0 120 35">
-  <g>
-    <defs>
-      <pattern id="halftoneDark" width="4" height="4" patternUnits="userSpaceOnUse">
-        <circle cx="2" cy="2" r="1" fill="#8B5CF6" opacity="0.1"/>
-      </pattern>
-      <filter id="neonGlow" x="-20%" y="-20%" width="140%" height="140%">
-        <feGaussianBlur stdDeviation="1" result="blur"/>
-        <feFlood flood-color="#8B5CF6" flood-opacity="0.2"/>
-        <feComposite in2="blur" operator="in"/>
-        <feMerge>
-          <feMergeNode/>
-          <feMergeNode in="SourceGraphic"/>
-        </feMerge>
-      </filter>
-    </defs>
-    <rect width="120" height="35" rx="5" fill="#0A0A0F"/>
-    <rect x="2" y="2" width="116" height="31" rx="4" fill="#16161E"/>
-    <rect x="2" y="2" width="116" height="31" rx="4" fill="url(#halftoneDark)"/>
-    
-    <!-- Logo with neon glow -->
-    <path d="M30 17.5 a7.5 7.5 0 1 1 -15 0 a7.5 7.5 0 1 1 15 0" fill="none" stroke="#8B5CF6" stroke-width="2" filter="url(#neonGlow)"/>
-    <path d="M18 17.5 L27 17.5" stroke="#8B5CF6" stroke-width="2" filter="url(#neonGlow)"/>
-    <circle cx="22.5" cy="17.5" r="2" fill="#8B5CF6"/>
-    
-    <text x="40" y="23" fill="#fff" font-family="Arial, sans-serif" font-weight="500" font-size="14" filter="url(#neonGlow)">Crawl4AI</text>
-  </g>
-</svg>

docs/deep_crawl/bfs_traversal_strategy.md

@@ -0,0 +1,244 @@
+# BFS Scraper Strategy: Smart Web Traversal
+
+The BFS (Breadth-First Search) Scraper Strategy provides an intelligent way to traverse websites systematically. It crawls websites level by level, ensuring thorough coverage while respecting web crawling etiquette.
+
+```mermaid
+flowchart TB
+    Start([Start]) --> Init[Initialize BFS Strategy]
+    Init --> InitStats[Initialize CrawlStats]
+    InitStats --> InitQueue[Initialize Priority Queue]
+    InitQueue --> AddStart[Add Start URL to Queue]
+    
+    AddStart --> CheckState{Queue Empty or\nTasks Pending?}
+    CheckState -->|No| Cleanup[Cleanup & Stats]
+    Cleanup --> End([End])
+    
+    CheckState -->|Yes| CheckCancel{Cancel\nRequested?}
+    CheckCancel -->|Yes| Cleanup
+    
+    CheckCancel -->|No| CheckConcurrent{Under Max\nConcurrent?}
+    
+    CheckConcurrent -->|No| WaitComplete[Wait for Task Completion]
+    WaitComplete --> YieldResult[Yield Result]
+    YieldResult --> CheckState
+    
+    CheckConcurrent -->|Yes| GetNextURL[Get Next URL from Queue]
+    
+    GetNextURL --> ValidateURL{Already\nVisited?}
+    ValidateURL -->|Yes| CheckState
+    
+    ValidateURL -->|No| ProcessURL[Process URL]
+    
+    subgraph URL_Processing [URL Processing]
+        ProcessURL --> CheckValid{URL Valid?}
+        CheckValid -->|No| UpdateStats[Update Skip Stats]
+        
+        CheckValid -->|Yes| CheckRobots{Allowed by\nrobots.txt?}
+        CheckRobots -->|No| UpdateRobotStats[Update Robot Stats]
+        
+        CheckRobots -->|Yes| ApplyDelay[Apply Politeness Delay]
+        ApplyDelay --> FetchContent[Fetch Content with Rate Limit]
+        
+        FetchContent --> CheckError{Error?}
+        CheckError -->|Yes| Retry{Retry\nNeeded?}
+        Retry -->|Yes| FetchContent
+        Retry -->|No| UpdateFailStats[Update Fail Stats]
+        
+        CheckError -->|No| ExtractLinks[Extract & Process Links]
+        ExtractLinks --> ScoreURLs[Score New URLs]
+        ScoreURLs --> AddToQueue[Add to Priority Queue]
+    end
+    
+    ProcessURL --> CreateTask{Parallel\nProcessing?}
+    CreateTask -->|Yes| AddTask[Add to Pending Tasks]
+    CreateTask -->|No| DirectProcess[Process Directly]
+    
+    AddTask --> CheckState
+    DirectProcess --> YieldResult
+    
+    UpdateStats --> CheckState
+    UpdateRobotStats --> CheckState
+    UpdateFailStats --> CheckState
+    
+    classDef process fill:#90caf9,stroke:#000,stroke-width:2px;
+    classDef decision fill:#fff59d,stroke:#000,stroke-width:2px;
+    classDef error fill:#ef9a9a,stroke:#000,stroke-width:2px;
+    classDef stats fill:#a5d6a7,stroke:#000,stroke-width:2px;
+    
+    class Start,End stats;
+    class CheckState,CheckCancel,CheckConcurrent,ValidateURL,CheckValid,CheckRobots,CheckError,Retry,CreateTask decision;
+    class UpdateStats,UpdateRobotStats,UpdateFailStats,InitStats,Cleanup stats;
+    class ProcessURL,FetchContent,ExtractLinks,ScoreURLs process;
+```
+
+## How It Works
+
+The BFS strategy crawls a website by:
+1. Starting from a root URL
+2. Processing all URLs at the current depth
+3. Moving to URLs at the next depth level
+4. Continuing until maximum depth is reached
+
+This ensures systematic coverage of the website while maintaining control over the crawling process.
+
+## Key Features
+
+### 1. Smart URL Processing
+```python
+strategy = BFSScraperStrategy(
+    max_depth=2,
+    filter_chain=my_filters,
+    url_scorer=my_scorer,
+    max_concurrent=5
+)
+```
+- Controls crawl depth
+- Filters unwanted URLs
+- Scores URLs for priority
+- Manages concurrent requests
+
+### 2. Polite Crawling
+The strategy automatically implements web crawling best practices:
+- Respects robots.txt
+- Implements rate limiting
+- Adds politeness delays
+- Manages concurrent requests
+
+### 3. Link Processing Control
+```python
+strategy = BFSScraperStrategy(
+    ...,
+    process_external_links=False  # Only process internal links
+)
+```
+- Control whether to follow external links
+- Default: internal links only
+- Enable external links when needed
+
+## Configuration Options
+
+| Parameter | Description | Default |
+|-----------|-------------|---------|
+| max_depth | Maximum crawl depth | Required |
+| filter_chain | URL filtering rules | Required |
+| url_scorer | URL priority scoring | Required |
+| max_concurrent | Max parallel requests | 5 |
+| min_crawl_delay | Seconds between requests | 1 |
+| process_external_links | Follow external links | False |
+
+## Best Practices
+
+1. **Set Appropriate Depth**
+   - Start with smaller depths (2-3)
+   - Increase based on needs
+   - Consider site structure
+
+2. **Configure Filters**
+   - Use URL patterns
+   - Filter by content type
+   - Avoid unwanted sections
+
+3. **Tune Performance**
+   - Adjust max_concurrent
+   - Set appropriate delays
+   - Monitor resource usage
+
+4. **Handle External Links**
+   - Keep external_links=False for focused crawls
+   - Enable only when needed
+   - Consider additional filtering
+
+## Example Usage
+
+```python
+from crawl4ai.scraper import BFSScraperStrategy
+from crawl4ai.scraper.filters import FilterChain
+from crawl4ai.scraper.scorers import BasicURLScorer
+
+# Configure strategy
+strategy = BFSScraperStrategy(
+    max_depth=3,
+    filter_chain=FilterChain([
+        URLPatternFilter("*.example.com/*"),
+        ContentTypeFilter(["text/html"])
+    ]),
+    url_scorer=BasicURLScorer(),
+    max_concurrent=5,
+    min_crawl_delay=1,
+    process_external_links=False
+)
+
+# Use with AsyncWebScraper
+scraper = AsyncWebScraper(crawler, strategy)
+results = await scraper.ascrape("https://example.com")
+```
+
+## Common Use Cases
+
+### 1. Site Mapping
+```python
+strategy = BFSScraperStrategy(
+    max_depth=5,
+    filter_chain=site_filter,
+    url_scorer=depth_scorer,
+    process_external_links=False
+)
+```
+Perfect for creating complete site maps or understanding site structure.
+
+### 2. Content Aggregation
+```python
+strategy = BFSScraperStrategy(
+    max_depth=2,
+    filter_chain=content_filter,
+    url_scorer=relevance_scorer,
+    max_concurrent=3
+)
+```
+Ideal for collecting specific types of content (articles, products, etc.).
+
+### 3. Link Analysis
+```python
+strategy = BFSScraperStrategy(
+    max_depth=1,
+    filter_chain=link_filter,
+    url_scorer=link_scorer,
+    process_external_links=True
+)
+```
+Useful for analyzing both internal and external link structures.
+
+## Advanced Features
+
+### Progress Monitoring
+```python
+async for result in scraper.ascrape(url):
+    print(f"Current depth: {strategy.stats.current_depth}")
+    print(f"Processed URLs: {strategy.stats.urls_processed}")
+```
+
+### Custom URL Scoring
+```python
+class CustomScorer(URLScorer):
+    def score(self, url: str) -> float:
+        # Lower scores = higher priority
+        return score_based_on_criteria(url)
+```
+
+## Troubleshooting
+
+1. **Slow Crawling**
+   - Increase max_concurrent
+   - Adjust min_crawl_delay
+   - Check network conditions
+
+2. **Missing Content**
+   - Verify max_depth
+   - Check filter settings
+   - Review URL patterns
+
+3. **High Resource Usage**
+   - Reduce max_concurrent
+   - Increase crawl delay
+   - Add more specific filters
+

docs/deep_crawl/deep_crawl_quickstart.py

@@ -0,0 +1,260 @@
+from crawl4ai.async_configs import CrawlerRunConfig, BrowserConfig
+from crawl4ai.content_scraping_strategy import LXMLWebScrapingStrategy
+from crawl4ai.deep_crawl import (
+    BFSDeepCrawlStrategy,
+    FilterChain,
+    URLPatternFilter,
+    ContentTypeFilter,
+    DomainFilter,
+    KeywordRelevanceScorer,
+    PathDepthScorer,
+    FreshnessScorer,
+    CompositeScorer,
+)
+from crawl4ai.async_webcrawler import AsyncWebCrawler
+import re
+import time
+import logging
+
+browser_config = BrowserConfig(headless=True, viewport_width=800, viewport_height=600)
+
+
+async def basic_example():
+    """
+    Basic example: Deep crawl a blog site for articles
+    - Crawls only HTML pages
+    - Stays within the blog section
+    - Collects all results at once
+    """
+    # Create a simple filter chain
+    filter_chain = FilterChain(
+        [
+            # Only crawl pages within the blog section
+            URLPatternFilter("*/basic/*"),
+            # Only process HTML pages
+            ContentTypeFilter(["text/html"]),
+        ]
+    )
+
+    # Initialize the strategy with basic configuration
+    bfs_strategy = BFSDeepCrawlStrategy(
+        max_depth=2,  # Only go 2 levels deep
+        filter_chain=filter_chain,
+        url_scorer=None,  # Use default scoring
+        process_external_links=True,
+    )
+
+    # Create the crawler
+    async with AsyncWebCrawler(
+        config=browser_config,
+    ) as crawler:
+        # Start scraping
+        try:
+            results = await crawler.arun(
+                "https://crawl4ai.com/mkdocs",
+                CrawlerRunConfig(deep_crawl_strategy=bfs_strategy),
+            )
+            # Process results
+            print(f"Crawled {len(results)} pages:")
+            for result in results:
+                print(f"- {result.url}: {len(result.html)} bytes")
+
+        except Exception as e:
+            print(f"Error during scraping: {e}")
+
+
+async def advanced_example():
+    """
+    Advanced example: Intelligent news site crawling
+    - Uses all filter types
+    - Implements sophisticated scoring
+    - Streams results
+    - Includes monitoring and logging
+    """
+    # Set up logging
+    logging.basicConfig(level=logging.INFO)
+    logger = logging.getLogger("advanced_deep_crawler")
+
+    # Create sophisticated filter chain
+    filter_chain = FilterChain(
+        [
+            # Domain control
+            DomainFilter(
+                allowed_domains=["techcrunch.com"],
+                blocked_domains=["login.techcrunch.com", "legal.yahoo.com"],
+            ),
+            # URL patterns
+            URLPatternFilter(
+                [
+                    "*/article/*",
+                    "*/news/*",
+                    "*/blog/*",
+                    re.compile(r"\d{4}/\d{2}/.*"),  # Date-based URLs
+                ]
+            ),
+            # Content types
+            ContentTypeFilter(["text/html", "application/xhtml+xml"]),
+        ]
+    )
+
+    # Create composite scorer
+    scorer = CompositeScorer(
+        [
+            # Prioritize by keywords
+            KeywordRelevanceScorer(
+                keywords=["news", "breaking", "update", "latest"], weight=1.0
+            ),
+            # Prefer optimal URL structure
+            PathDepthScorer(optimal_depth=3, weight=0.7),
+            # Prioritize fresh content
+            FreshnessScorer(weight=0.9),
+        ]
+    )
+
+    # Initialize strategy with advanced configuration
+    bfs_strategy = BFSDeepCrawlStrategy(
+        max_depth=2, filter_chain=filter_chain, url_scorer=scorer
+    )
+
+    # Create crawler
+    async with AsyncWebCrawler(
+        config=browser_config,
+    ) as crawler:
+
+        # Track statistics
+        stats = {"processed": 0, "errors": 0, "total_size": 0}
+
+        try:
+            # Use streaming mode
+            results = []
+            result_generator = await crawler.arun(
+                "https://techcrunch.com",
+                config=CrawlerRunConfig(deep_crawl_strategy=bfs_strategy, stream=True),
+            )
+            async for result in result_generator:
+                stats["processed"] += 1
+
+                if result.success:
+                    stats["total_size"] += len(result.html)
+                    logger.info(
+                        f"Processed at depth: {result.depth} with score: {result.score:.3f} : \n {result.url}"
+                    )
+                    results.append(result)
+                else:
+                    stats["errors"] += 1
+                    logger.error(
+                        f"Failed to process {result.url}: {result.error_message}"
+                    )
+
+                # Log progress regularly
+                if stats["processed"] % 10 == 0:
+                    logger.info(f"Progress: {stats['processed']} URLs processed")
+
+        except Exception as e:
+            logger.error(f"Scraping error: {e}")
+
+        finally:
+            # Print final statistics
+            logger.info("Scraping completed:")
+            logger.info(f"- URLs processed: {stats['processed']}")
+            logger.info(f"- Errors: {stats['errors']}")
+            logger.info(f"- Total content size: {stats['total_size'] / 1024:.2f} KB")
+
+            # Print filter statistics
+            for filter_ in filter_chain.filters:
+                logger.info(f"{filter_.name} stats:")
+                logger.info(f"- Passed: {filter_.stats.passed_urls}")
+                logger.info(f"- Rejected: {filter_.stats.rejected_urls}")
+
+            # Print scorer statistics
+            logger.info("Scoring statistics:")
+            logger.info(f"- Average score: {scorer.stats.average_score:.2f}")
+            logger.info(
+                f"- Score range: {scorer.stats.min_score:.2f} - {scorer.stats.max_score:.2f}"
+            )
+
+
+async def basic_example_many_urls():
+    filter_chain = FilterChain(
+        [
+            URLPatternFilter("*/basic/*"),
+            ContentTypeFilter(["text/html"]),
+        ]
+    )
+    # Initialize the strategy with basic configuration
+    bfs_strategy = BFSDeepCrawlStrategy(
+        max_depth=2,  # Only go 2 levels deep
+        filter_chain=filter_chain,
+        url_scorer=None,  # Use default scoring
+        process_external_links=False,
+    )
+
+    # Create the crawler
+    async with AsyncWebCrawler(
+        config=browser_config,
+    ) as crawler:
+        # Start scraping
+        try:
+            results = await crawler.arun_many(
+                urls=["https://crawl4ai.com/mkdocs","https://aravindkarnam.com"],
+                config=CrawlerRunConfig(deep_crawl_strategy=bfs_strategy),
+            )
+            # Process results
+            print(f"Crawled {len(results)} pages:")
+            for url_result in results:
+                for result in url_result:
+                    print(f"- {result.url}: {len(result.html)} bytes")
+
+        except Exception as e:
+            print(f"Error during scraping: {e}")
+
+async def basic_example_many_urls_stream():
+    filter_chain = FilterChain(
+        [
+            URLPatternFilter("*/basic/*"),
+            ContentTypeFilter(["text/html"]),
+        ]
+    )
+    # Initialize the strategy with basic configuration
+    bfs_strategy = BFSDeepCrawlStrategy(
+        max_depth=2,  # Only go 2 levels deep
+        filter_chain=filter_chain,
+        url_scorer=None,  # Use default scoring
+        process_external_links=False,
+    )
+
+    # Create the crawler
+    async with AsyncWebCrawler(
+        config=browser_config,
+    ) as crawler:
+        # Start scraping
+        try:
+            async for result in await crawler.arun_many(
+                urls=["https://crawl4ai.com/mkdocs","https://aravindkarnam.com"],
+                config=CrawlerRunConfig(deep_crawl_strategy=bfs_strategy,stream=True),
+            ):
+            # Process results
+                print(f"- {result.url}: {len(result.html)} bytes")
+        except Exception as e:
+            print(f"Error during scraping: {e}")
+
+if __name__ == "__main__":
+    import asyncio
+    import time
+
+    # Run basic example
+    start_time = time.perf_counter()
+    print("Running basic Deep crawl example...")
+    asyncio.run(basic_example())
+    end_time = time.perf_counter()
+    print(f"Basic deep crawl example completed in {end_time - start_time:.2f} seconds")
+
+    # Run advanced example
+    print("\nRunning advanced deep crawl example...")
+    asyncio.run(advanced_example())
+
+    print("\nRunning advanced deep crawl example with arun_many...")
+    asyncio.run(basic_example_many_urls())
+
+    print("\nRunning advanced deep crawl example with arun_many streaming enabled...")
+    asyncio.run(basic_example_many_urls_stream())

docs/deep_crawl/filters_scrorers.md

@@ -0,0 +1,342 @@
+# URL Filters and Scorers
+
+The crawl4ai library provides powerful URL filtering and scoring capabilities that help you control and prioritize your web crawling. This guide explains how to use these features effectively.
+
+```mermaid
+flowchart TB
+    Start([URL Input]) --> Chain[Filter Chain]
+    
+    subgraph Chain Process
+        Chain --> Pattern{URL Pattern\nFilter}
+        Pattern -->|Match| Content{Content Type\nFilter}
+        Pattern -->|No Match| Reject1[Reject URL]
+        
+        Content -->|Allowed| Domain{Domain\nFilter}
+        Content -->|Not Allowed| Reject2[Reject URL]
+        
+        Domain -->|Allowed| Accept[Accept URL]
+        Domain -->|Blocked| Reject3[Reject URL]
+    end
+    
+    subgraph Statistics
+        Pattern --> UpdatePattern[Update Pattern Stats]
+        Content --> UpdateContent[Update Content Stats]
+        Domain --> UpdateDomain[Update Domain Stats]
+        Accept --> UpdateChain[Update Chain Stats]
+        Reject1 --> UpdateChain
+        Reject2 --> UpdateChain
+        Reject3 --> UpdateChain
+    end
+    
+    Accept --> End([End])
+    Reject1 --> End
+    Reject2 --> End
+    Reject3 --> End
+    
+    classDef process fill:#90caf9,stroke:#000,stroke-width:2px;
+    classDef decision fill:#fff59d,stroke:#000,stroke-width:2px;
+    classDef reject fill:#ef9a9a,stroke:#000,stroke-width:2px;
+    classDef accept fill:#a5d6a7,stroke:#000,stroke-width:2px;
+    
+    class Start,End accept;
+    class Pattern,Content,Domain decision;
+    class Reject1,Reject2,Reject3 reject;
+    class Chain,UpdatePattern,UpdateContent,UpdateDomain,UpdateChain process;
+```
+
+## URL Filters
+
+URL filters help you control which URLs are crawled. Multiple filters can be chained together to create sophisticated filtering rules.
+
+### Available Filters
+
+1. **URL Pattern Filter**
+```python
+pattern_filter = URLPatternFilter([
+    "*.example.com/*",  # Glob pattern
+    "*/article/*",      # Path pattern
+    re.compile(r"blog-\d+") # Regex pattern
+])
+```
+- Supports glob patterns and regex
+- Multiple patterns per filter
+- Pattern pre-compilation for performance
+
+2. **Content Type Filter**
+```python
+content_filter = ContentTypeFilter([
+    "text/html",
+    "application/pdf"
+], check_extension=True)
+```
+- Filter by MIME types
+- Extension checking
+- Support for multiple content types
+
+3. **Domain Filter**
+```python
+domain_filter = DomainFilter(
+    allowed_domains=["example.com", "blog.example.com"],
+    blocked_domains=["ads.example.com"]
+)
+```
+- Allow/block specific domains
+- Subdomain support
+- Efficient domain matching
+
+### Creating Filter Chains
+
+```python
+# Create and configure a filter chain
+filter_chain = FilterChain([
+    URLPatternFilter(["*.example.com/*"]),
+    ContentTypeFilter(["text/html"]),
+    DomainFilter(blocked_domains=["ads.*"])
+])
+
+# Add more filters
+filter_chain.add_filter(
+    URLPatternFilter(["*/article/*"])
+)
+```
+
+```mermaid
+flowchart TB
+    Start([URL Input]) --> Composite[Composite Scorer]
+    
+    subgraph Scoring Process
+        Composite --> Keywords[Keyword Relevance]
+        Composite --> Path[Path Depth]
+        Composite --> Content[Content Type]
+        Composite --> Fresh[Freshness]
+        Composite --> Domain[Domain Authority]
+        
+        Keywords --> KeywordScore[Calculate Score]
+        Path --> PathScore[Calculate Score]
+        Content --> ContentScore[Calculate Score]
+        Fresh --> FreshScore[Calculate Score]
+        Domain --> DomainScore[Calculate Score]
+        
+        KeywordScore --> Weight1[Apply Weight]
+        PathScore --> Weight2[Apply Weight]
+        ContentScore --> Weight3[Apply Weight]
+        FreshScore --> Weight4[Apply Weight]
+        DomainScore --> Weight5[Apply Weight]
+    end
+    
+    Weight1 --> Combine[Combine Scores]
+    Weight2 --> Combine
+    Weight3 --> Combine
+    Weight4 --> Combine
+    Weight5 --> Combine
+    
+    Combine --> Normalize{Normalize?}
+    Normalize -->|Yes| NormalizeScore[Normalize Combined Score]
+    Normalize -->|No| FinalScore[Final Score]
+    NormalizeScore --> FinalScore
+    
+    FinalScore --> Stats[Update Statistics]
+    Stats --> End([End])
+    
+    classDef process fill:#90caf9,stroke:#000,stroke-width:2px;
+    classDef scorer fill:#fff59d,stroke:#000,stroke-width:2px;
+    classDef calc fill:#a5d6a7,stroke:#000,stroke-width:2px;
+    classDef decision fill:#ef9a9a,stroke:#000,stroke-width:2px;
+    
+    class Start,End calc;
+    class Keywords,Path,Content,Fresh,Domain scorer;
+    class KeywordScore,PathScore,ContentScore,FreshScore,DomainScore process;
+    class Normalize decision;
+```
+
+## URL Scorers
+
+URL scorers help prioritize which URLs to crawl first. Higher scores indicate higher priority.
+
+### Available Scorers
+
+1. **Keyword Relevance Scorer**
+```python
+keyword_scorer = KeywordRelevanceScorer(
+    keywords=["python", "programming"],
+    weight=1.0,
+    case_sensitive=False
+)
+```
+- Score based on keyword matches
+- Case sensitivity options
+- Weighted scoring
+
+2. **Path Depth Scorer**
+```python
+path_scorer = PathDepthScorer(
+    optimal_depth=3,  # Preferred URL depth
+    weight=0.7
+)
+```
+- Score based on URL path depth
+- Configurable optimal depth
+- Diminishing returns for deeper paths
+
+3. **Content Type Scorer**
+```python
+content_scorer = ContentTypeScorer({
+    r'\.html$': 1.0,
+    r'\.pdf$': 0.8,
+    r'\.xml$': 0.6
+})
+```
+- Score based on file types
+- Configurable type weights
+- Pattern matching support
+
+4. **Freshness Scorer**
+```python
+freshness_scorer = FreshnessScorer(weight=0.9)
+```
+- Score based on date indicators in URLs
+- Multiple date format support
+- Recency weighting
+
+5. **Domain Authority Scorer**
+```python
+authority_scorer = DomainAuthorityScorer({
+    "python.org": 1.0,
+    "github.com": 0.9,
+    "medium.com": 0.7
+})
+```
+- Score based on domain importance
+- Configurable domain weights
+- Default weight for unknown domains
+
+### Combining Scorers
+
+```python
+# Create a composite scorer
+composite_scorer = CompositeScorer([
+    KeywordRelevanceScorer(["python"], weight=1.0),
+    PathDepthScorer(optimal_depth=2, weight=0.7),
+    FreshnessScorer(weight=0.8)
+], normalize=True)
+```
+
+## Best Practices
+
+### Filter Configuration
+
+1. **Start Restrictive**
+   ```python
+   # Begin with strict filters
+   filter_chain = FilterChain([
+       DomainFilter(allowed_domains=["example.com"]),
+       ContentTypeFilter(["text/html"])
+   ])
+   ```
+
+2. **Layer Filters**
+   ```python
+   # Add more specific filters
+   filter_chain.add_filter(
+       URLPatternFilter(["*/article/*", "*/blog/*"])
+   )
+   ```
+
+3. **Monitor Filter Statistics**
+   ```python
+   # Check filter performance
+   for filter in filter_chain.filters:
+       print(f"{filter.name}: {filter.stats.rejected_urls} rejected")
+   ```
+
+### Scorer Configuration
+
+1. **Balance Weights**
+   ```python
+   # Balanced scoring configuration
+   scorer = create_balanced_scorer()
+   ```
+
+2. **Customize for Content**
+   ```python
+   # News site configuration
+   news_scorer = CompositeScorer([
+       KeywordRelevanceScorer(["news", "article"], weight=1.0),
+       FreshnessScorer(weight=1.0),
+       PathDepthScorer(optimal_depth=2, weight=0.5)
+   ])
+   ```
+
+3. **Monitor Scoring Statistics**
+   ```python
+   # Check scoring distribution
+   print(f"Average score: {scorer.stats.average_score}")
+   print(f"Score range: {scorer.stats.min_score} - {scorer.stats.max_score}")
+   ```
+
+## Common Use Cases
+
+### Blog Crawling
+```python
+blog_config = {
+    'filters': FilterChain([
+        URLPatternFilter(["*/blog/*", "*/post/*"]),
+        ContentTypeFilter(["text/html"])
+    ]),
+    'scorer': CompositeScorer([
+        FreshnessScorer(weight=1.0),
+        KeywordRelevanceScorer(["blog", "article"], weight=0.8)
+    ])
+}
+```
+
+### Documentation Sites
+```python
+docs_config = {
+    'filters': FilterChain([
+        URLPatternFilter(["*/docs/*", "*/guide/*"]),
+        ContentTypeFilter(["text/html", "application/pdf"])
+    ]),
+    'scorer': CompositeScorer([
+        PathDepthScorer(optimal_depth=3, weight=1.0),
+        KeywordRelevanceScorer(["guide", "tutorial"], weight=0.9)
+    ])
+}
+```
+
+### E-commerce Sites
+```python
+ecommerce_config = {
+    'filters': FilterChain([
+        URLPatternFilter(["*/product/*", "*/category/*"]),
+        DomainFilter(blocked_domains=["ads.*", "tracker.*"])
+    ]),
+    'scorer': CompositeScorer([
+        PathDepthScorer(optimal_depth=2, weight=1.0),
+        ContentTypeScorer({
+            r'/product/': 1.0,
+            r'/category/': 0.8
+        })
+    ])
+}
+```
+
+## Advanced Topics
+
+### Custom Filters
+```python
+class CustomFilter(URLFilter):
+    def apply(self, url: str) -> bool:
+        # Your custom filtering logic
+        return True
+```
+
+### Custom Scorers
+```python
+class CustomScorer(URLScorer):
+    def _calculate_score(self, url: str) -> float:
+        # Your custom scoring logic
+        return 1.0
+```
+
+For more examples, check our [example repository](https://github.com/example/crawl4ai/examples).

docs/deep_crawl/how_to_use.md

@@ -0,0 +1,206 @@
+# Scraper Examples Guide
+
+This guide provides two complete examples of using the crawl4ai scraper: a basic implementation for simple use cases and an advanced implementation showcasing all features.
+
+## Basic Example
+
+The basic example demonstrates a simple blog scraping scenario:
+
+```python
+from crawl4ai.scraper import AsyncWebScraper, BFSScraperStrategy, FilterChain
+
+# Create simple filter chain
+filter_chain = FilterChain([
+    URLPatternFilter("*/blog/*"),
+    ContentTypeFilter(["text/html"])
+])
+
+# Initialize strategy
+strategy = BFSScraperStrategy(
+    max_depth=2,
+    filter_chain=filter_chain,
+    url_scorer=None,
+    max_concurrent=3
+)
+
+# Create and run scraper
+crawler = AsyncWebCrawler()
+scraper = AsyncWebScraper(crawler, strategy)
+result = await scraper.ascrape("https://example.com/blog/")
+```
+
+### Features Demonstrated
+- Basic URL filtering
+- Simple content type filtering
+- Depth control
+- Concurrent request limiting
+- Result collection
+
+## Advanced Example
+
+The advanced example shows a sophisticated news site scraping setup with all features enabled:
+
+```python
+# Create comprehensive filter chain
+filter_chain = FilterChain([
+    DomainFilter(
+        allowed_domains=["example.com"],
+        blocked_domains=["ads.example.com"]
+    ),
+    URLPatternFilter([
+        "*/article/*",
+        re.compile(r"\d{4}/\d{2}/.*")
+    ]),
+    ContentTypeFilter(["text/html"])
+])
+
+# Create intelligent scorer
+scorer = CompositeScorer([
+    KeywordRelevanceScorer(
+        keywords=["news", "breaking"],
+        weight=1.0
+    ),
+    PathDepthScorer(optimal_depth=3, weight=0.7),
+    FreshnessScorer(weight=0.9)
+])
+
+# Initialize advanced strategy
+strategy = BFSScraperStrategy(
+    max_depth=4,
+    filter_chain=filter_chain,
+    url_scorer=scorer,
+    max_concurrent=5
+)
+```
+
+### Features Demonstrated
+1. **Advanced Filtering**
+   - Domain filtering
+   - Pattern matching
+   - Content type control
+
+2. **Intelligent Scoring**
+   - Keyword relevance
+   - Path optimization
+   - Freshness priority
+
+3. **Monitoring**
+   - Progress tracking
+   - Error handling
+   - Statistics collection
+
+4. **Resource Management**
+   - Concurrent processing
+   - Rate limiting
+   - Cleanup handling
+
+## Running the Examples
+
+```bash
+# Basic usage
+python basic_scraper_example.py
+
+# Advanced usage with logging
+PYTHONPATH=. python advanced_scraper_example.py
+```
+
+## Example Output
+
+### Basic Example
+```
+Crawled 15 pages:
+- https://example.com/blog/post1: 24560 bytes
+- https://example.com/blog/post2: 18920 bytes
+...
+```
+
+### Advanced Example
+```
+INFO: Starting crawl of https://example.com/news/
+INFO: Processed: https://example.com/news/breaking/story1
+DEBUG: KeywordScorer: 0.85
+DEBUG: FreshnessScorer: 0.95
+INFO: Progress: 10 URLs processed
+...
+INFO: Scraping completed:
+INFO: - URLs processed: 50
+INFO: - Errors: 2
+INFO: - Total content size: 1240.50 KB
+```
+
+## Customization
+
+### Adding Custom Filters
+```python
+class CustomFilter(URLFilter):
+    def apply(self, url: str) -> bool:
+        # Your custom filtering logic
+        return True
+
+filter_chain.add_filter(CustomFilter())
+```
+
+### Custom Scoring Logic
+```python
+class CustomScorer(URLScorer):
+    def _calculate_score(self, url: str) -> float:
+        # Your custom scoring logic
+        return 1.0
+
+scorer = CompositeScorer([
+    CustomScorer(weight=1.0),
+    ...
+])
+```
+
+## Best Practices
+
+1. **Start Simple**
+   - Begin with basic filtering
+   - Add features incrementally
+   - Test thoroughly at each step
+
+2. **Monitor Performance**
+   - Watch memory usage
+   - Track processing times
+   - Adjust concurrency as needed
+
+3. **Handle Errors**
+   - Implement proper error handling
+   - Log important events
+   - Track error statistics
+
+4. **Optimize Resources**
+   - Set appropriate delays
+   - Limit concurrent requests
+   - Use streaming for large crawls
+
+## Troubleshooting
+
+Common issues and solutions:
+
+1. **Too Many Requests**
+   ```python
+   strategy = BFSScraperStrategy(
+       max_concurrent=3,  # Reduce concurrent requests
+       min_crawl_delay=2  # Increase delay between requests
+   )
+   ```
+
+2. **Memory Issues**
+   ```python
+   # Use streaming mode for large crawls
+   async for result in scraper.ascrape(url, stream=True):
+       process_result(result)
+   ```
+
+3. **Missing Content**
+   ```python
+   # Check your filter chain
+   filter_chain = FilterChain([
+       URLPatternFilter("*"),  # Broaden patterns
+       ContentTypeFilter(["*"])  # Accept all content
+   ])
+   ```
+
+For more examples and use cases, visit our [GitHub repository](https://github.com/example/crawl4ai/examples).

docs/examples/browser_optimization_example.py

@@ -52,7 +52,7 @@ async def crawl_sequential(urls: List[str]):
             )
             if result.success:
                 print(f"Successfully crawled {url}")
-                print(f"Content length: {len(result.markdown.raw_markdown)}")
+                print(f"Content length: {len(result.markdown_v2.raw_markdown)}")
     finally:
         await crawler.close()
 
@@ -101,7 +101,7 @@ async def crawl_parallel(urls: List[str], max_concurrent: int = 3):
                     print(f"Error crawling {url}: {str(result)}")
                 elif result.success:
                     print(f"Successfully crawled {url}")
-                    print(f"Content length: {len(result.markdown.raw_markdown)}")
+                    print(f"Content length: {len(result.markdown_v2.raw_markdown)}")
     finally:
         await crawler.close()
 

docs/examples/cli/browser.yml

@@ -1,13 +0,0 @@
-browser_type: "chromium"
-headless: true
-viewport_width: 1280
-viewport_height: 800
-user_agent_mode: "random"
-verbose: true
-text_mode: false
-light_mode: false
-ignore_https_errors: true
-java_script_enabled: true
-extra_args:
-  - "--disable-gpu"
-  - "--no-sandbox"

docs/examples/cli/crawler.yml

@@ -1,13 +0,0 @@
-cache_mode: "bypass"
-wait_until: "networkidle"
-page_timeout: 30000
-delay_before_return_html: 0.5
-word_count_threshold: 100
-scan_full_page: true
-scroll_delay: 0.3
-process_iframes: false
-remove_overlay_elements: true
-magic: true
-verbose: true
-exclude_external_links: true
-exclude_social_media_links: true

docs/examples/cli/css_schema.json

@@ -1,27 +0,0 @@
-{
-  "name": "ArticleExtractor",
-  "baseSelector": ".cards[data-tax=news] .card__data",
-  "fields": [
-    {
-      "name": "title",
-      "selector": "h4.card__title",
-      "type": "text"
-    },
-    {
-      "name": "link",
-      "selector": "h4.card__title a", 
-      "type": "attribute",
-      "attribute": "href"
-    },
-    {
-      "name": "details",
-      "selector": ".card__details",
-      "type": "text"
-    },
-    {
-      "name": "topics",
-      "selector": ".card__topics.topics",
-      "type": "text"
-    }
-  ]
-}

docs/examples/cli/extract.yml

@@ -1,11 +0,0 @@
-type: "llm"
-provider: "openai/gpt-4o-mini"
-api_token: "env:OPENAI_API_KEY"
-instruction: "Extract all articles with their titles, authors, publication dates and main topics in a structured format"
-params:
-  chunk_token_threshold: 4096
-  overlap_rate: 0.1
-  word_token_rate: 0.75
-  temperature: 0.3
-  max_tokens: 1000
-  verbose: true

docs/examples/cli/extract_css.yml

@@ -1,3 +0,0 @@
-type: "json-css"
-params:
-  verbose: true 

docs/examples/cli/llm_schema.json

@@ -1,26 +0,0 @@
-{
-  "title": "NewsArticle",
-  "type": "object",
-  "properties": {
-    "title": {
-      "type": "string",
-      "description": "The title/headline of the news article"
-    },
-    "link": {
-      "type": "string",
-      "description": "The URL or link to the full article"
-    },
-    "details": {
-      "type": "string", 
-      "description": "Brief summary or details about the article content"
-    },
-    "topics": {
-      "type": "array",
-      "items": {
-        "type": "string"
-      },
-      "description": "List of topics or categories associated with the article"
-    }
-  },
-  "required": ["title", "details"]
-}

docs/examples/deepcrawl_example.py

@@ -1,498 +0,0 @@
-import asyncio
-import time
-
-from crawl4ai import CrawlerRunConfig, AsyncWebCrawler, CacheMode
-from crawl4ai.content_scraping_strategy import LXMLWebScrapingStrategy
-from crawl4ai.deep_crawling import BFSDeepCrawlStrategy, BestFirstCrawlingStrategy
-from crawl4ai.deep_crawling.filters import (
-    FilterChain,
-    URLPatternFilter,
-    DomainFilter,
-    ContentTypeFilter,
-    ContentRelevanceFilter,
-    SEOFilter,
-)
-from crawl4ai.deep_crawling.scorers import (
-    KeywordRelevanceScorer,
-)
-
-
-# 1️⃣ Basic Deep Crawl Setup
-async def basic_deep_crawl():
-    """
-    PART 1: Basic Deep Crawl setup - Demonstrates a simple two-level deep crawl.
-
-    This function shows:
-    - How to set up BFSDeepCrawlStrategy (Breadth-First Search)
-    - Setting depth and domain parameters
-    - Processing the results to show the hierarchy
-    """
-    print("\n===== BASIC DEEP CRAWL SETUP =====")
-
-    # Configure a 2-level deep crawl using Breadth-First Search strategy
-    # max_depth=2 means: initial page (depth 0) + 2 more levels
-    # include_external=False means: only follow links within the same domain
-    config = CrawlerRunConfig(
-        deep_crawl_strategy=BFSDeepCrawlStrategy(max_depth=2, include_external=False),
-        scraping_strategy=LXMLWebScrapingStrategy(),
-        verbose=True,  # Show progress during crawling
-    )
-
-    async with AsyncWebCrawler() as crawler:
-        start_time = time.perf_counter()
-        results = await crawler.arun(url="https://docs.crawl4ai.com", config=config)
-
-        # Group results by depth to visualize the crawl tree
-        pages_by_depth = {}
-        for result in results:
-            depth = result.metadata.get("depth", 0)
-            if depth not in pages_by_depth:
-                pages_by_depth[depth] = []
-            pages_by_depth[depth].append(result.url)
-
-        print(f"✅ Crawled {len(results)} pages total")
-
-        # Display crawl structure by depth
-        for depth, urls in sorted(pages_by_depth.items()):
-            print(f"\nDepth {depth}: {len(urls)} pages")
-            # Show first 3 URLs for each depth as examples
-            for url in urls[:3]:
-                print(f"  → {url}")
-            if len(urls) > 3:
-                print(f"  ... and {len(urls) - 3} more")
-
-        print(
-            f"\n✅ Performance: {len(results)} pages in {time.perf_counter() - start_time:.2f} seconds"
-        )
-
-# 2️⃣ Stream vs. Non-Stream Execution
-async def stream_vs_nonstream():
-    """
-    PART 2: Demonstrates the difference between stream and non-stream execution.
-
-    Non-stream: Waits for all results before processing
-    Stream: Processes results as they become available
-    """
-    print("\n===== STREAM VS. NON-STREAM EXECUTION =====")
-
-    # Common configuration for both examples
-    base_config = CrawlerRunConfig(
-        deep_crawl_strategy=BFSDeepCrawlStrategy(max_depth=1, include_external=False),
-        scraping_strategy=LXMLWebScrapingStrategy(),
-        verbose=False,
-    )
-
-    async with AsyncWebCrawler() as crawler:
-        # NON-STREAMING MODE
-        print("\n📊 NON-STREAMING MODE:")
-        print("  In this mode, all results are collected before being returned.")
-
-        non_stream_config = base_config.clone()
-        non_stream_config.stream = False
-
-        start_time = time.perf_counter()
-        results = await crawler.arun(
-            url="https://docs.crawl4ai.com", config=non_stream_config
-        )
-
-        print(f"  ✅ Received all {len(results)} results at once")
-        print(f"  ✅ Total duration: {time.perf_counter() - start_time:.2f} seconds")
-
-        # STREAMING MODE
-        print("\n📊 STREAMING MODE:")
-        print("  In this mode, results are processed as they become available.")
-
-        stream_config = base_config.clone()
-        stream_config.stream = True
-
-        start_time = time.perf_counter()
-        result_count = 0
-        first_result_time = None
-
-        async for result in await crawler.arun(
-            url="https://docs.crawl4ai.com", config=stream_config
-        ):
-            result_count += 1
-            if result_count == 1:
-                first_result_time = time.perf_counter() - start_time
-                print(
-                    f"  ✅ First result received after {first_result_time:.2f} seconds: {result.url}"
-                )
-            elif result_count % 5 == 0:  # Show every 5th result for brevity
-                print(f"  → Result #{result_count}: {result.url}")
-
-        print(f"  ✅ Total: {result_count} results")
-        print(f"  ✅ First result: {first_result_time:.2f} seconds")
-        print(f"  ✅ All results: {time.perf_counter() - start_time:.2f} seconds")
-        print("\n🔍 Key Takeaway: Streaming allows processing results immediately")
-
-# 3️⃣ Introduce Filters & Scorers
-async def filters_and_scorers():
-    """
-    PART 3: Demonstrates the use of filters and scorers for more targeted crawling.
-
-    This function progressively adds:
-    1. A single URL pattern filter
-    2. Multiple filters in a chain
-    3. Scorers for prioritizing pages
-    """
-    print("\n===== FILTERS AND SCORERS =====")
-
-    async with AsyncWebCrawler() as crawler:
-        # SINGLE FILTER EXAMPLE
-        print("\n📊 EXAMPLE 1: SINGLE URL PATTERN FILTER")
-        print("  Only crawl pages containing 'core' in the URL")
-
-        # Create a filter that only allows URLs with 'guide' in them
-        url_filter = URLPatternFilter(patterns=["*core*"])
-
-        config = CrawlerRunConfig(
-            deep_crawl_strategy=BFSDeepCrawlStrategy(
-                max_depth=1,
-                include_external=False,
-                filter_chain=FilterChain([url_filter]),  # Single filter
-            ),
-            scraping_strategy=LXMLWebScrapingStrategy(),
-            cache_mode=CacheMode.BYPASS,
-            verbose=True,
-        )
-
-        results = await crawler.arun(url="https://docs.crawl4ai.com", config=config)
-
-        print(f"  ✅ Crawled {len(results)} pages matching '*core*'")
-        for result in results[:3]:  # Show first 3 results
-            print(f"  → {result.url}")
-        if len(results) > 3:
-            print(f"  ... and {len(results) - 3} more")
-
-        # MULTIPLE FILTERS EXAMPLE
-        print("\n📊 EXAMPLE 2: MULTIPLE FILTERS IN A CHAIN")
-        print("  Only crawl pages that:")
-        print("  1. Contain '2024' in the URL")
-        print("  2. Are from 'techcrunch.com'")
-        print("  3. Are of text/html or application/javascript content type")
-
-        # Create a chain of filters
-        filter_chain = FilterChain(
-            [
-                URLPatternFilter(patterns=["*2024*"]),
-                DomainFilter(
-                    allowed_domains=["techcrunch.com"],
-                    blocked_domains=["guce.techcrunch.com", "oidc.techcrunch.com"],
-                ),
-                ContentTypeFilter(
-                    allowed_types=["text/html", "application/javascript"]
-                ),
-            ]
-        )
-
-        config = CrawlerRunConfig(
-            deep_crawl_strategy=BFSDeepCrawlStrategy(
-                max_depth=1, include_external=False, filter_chain=filter_chain
-            ),
-            scraping_strategy=LXMLWebScrapingStrategy(),
-            verbose=True,
-        )
-
-        results = await crawler.arun(url="https://techcrunch.com", config=config)
-
-        print(f"  ✅ Crawled {len(results)} pages after applying all filters")
-        for result in results[:3]:
-            print(f"  → {result.url}")
-        if len(results) > 3:
-            print(f"  ... and {len(results) - 3} more")
-
-        # SCORERS EXAMPLE
-        print("\n📊 EXAMPLE 3: USING A KEYWORD RELEVANCE SCORER")
-        print(
-            "Score pages based on relevance to keywords: 'crawl', 'example', 'async', 'configuration','javascript','css'"
-        )
-
-        # Create a keyword relevance scorer
-        keyword_scorer = KeywordRelevanceScorer(
-            keywords=["crawl", "example", "async", "configuration","javascript","css"], weight=1
-        )
-
-        config = CrawlerRunConfig(
-            deep_crawl_strategy=BestFirstCrawlingStrategy(  
-                max_depth=1, include_external=False, url_scorer=keyword_scorer
-            ),
-            scraping_strategy=LXMLWebScrapingStrategy(),
-            cache_mode=CacheMode.BYPASS,
-            verbose=True,
-            stream=True,
-        )
-
-        results = []
-        async for result in await crawler.arun(
-            url="https://docs.crawl4ai.com", config=config
-        ):
-            results.append(result)
-            score = result.metadata.get("score")
-            print(f"  → Score: {score:.2f} | {result.url}")
-
-        print(f"  ✅ Crawler prioritized {len(results)} pages by relevance score")
-        print("  🔍 Note: BestFirstCrawlingStrategy visits highest-scoring pages first")
-
-# 4️⃣ Advanced Filters
-async def advanced_filters():
-    """
-    PART 4: Demonstrates advanced filtering techniques for specialized crawling.
-
-    This function covers:
-    - SEO filters
-    - Text relevancy filtering
-    - Combining advanced filters
-    """
-    print("\n===== ADVANCED FILTERS =====")
-
-    async with AsyncWebCrawler() as crawler:
-        # SEO FILTER EXAMPLE
-        print("\n📊 EXAMPLE 1: SEO FILTERS")
-        print(
-            "Quantitative SEO quality assessment filter based searching keywords in the head section"
-        )
-
-        seo_filter = SEOFilter(
-            threshold=0.5, keywords=["dynamic", "interaction", "javascript"]
-        )
-
-        config = CrawlerRunConfig(
-            deep_crawl_strategy=BFSDeepCrawlStrategy(
-                max_depth=1, filter_chain=FilterChain([seo_filter])
-            ),
-            scraping_strategy=LXMLWebScrapingStrategy(),
-            verbose=True,
-            cache_mode=CacheMode.BYPASS,
-        )
-
-        results = await crawler.arun(url="https://docs.crawl4ai.com", config=config)
-
-        print(f"  ✅ Found {len(results)} pages with relevant keywords")
-        for result in results:
-            print(f"  → {result.url}")
-
-        # ADVANCED TEXT RELEVANCY FILTER
-        print("\n📊 EXAMPLE 2: ADVANCED TEXT RELEVANCY FILTER")
-
-        # More sophisticated content relevance filter
-        relevance_filter = ContentRelevanceFilter(
-            query="Interact with the web using your authentic digital identity",
-            threshold=0.7,
-        )
-
-        config = CrawlerRunConfig(
-            deep_crawl_strategy=BFSDeepCrawlStrategy(
-                max_depth=1, filter_chain=FilterChain([relevance_filter])
-            ),
-            scraping_strategy=LXMLWebScrapingStrategy(),
-            verbose=True,
-            cache_mode=CacheMode.BYPASS,
-        )
-
-        results = await crawler.arun(url="https://docs.crawl4ai.com", config=config)
-
-        print(f"  ✅ Found {len(results)} pages")
-        for result in results:
-            relevance_score = result.metadata.get("relevance_score", 0)
-            print(f"  → Score: {relevance_score:.2f} | {result.url}")
-
-# 5️⃣ Max Pages and Score Thresholds
-async def max_pages_and_thresholds():
-    """
-    PART 5: Demonstrates using max_pages and score_threshold parameters with different strategies.
-    
-    This function shows:
-    - How to limit the number of pages crawled
-    - How to set score thresholds for more targeted crawling
-    - Comparing BFS, DFS, and Best-First strategies with these parameters
-    """
-    print("\n===== MAX PAGES AND SCORE THRESHOLDS =====")
-    
-    from crawl4ai.deep_crawling import DFSDeepCrawlStrategy
-    
-    async with AsyncWebCrawler() as crawler:
-        # Define a common keyword scorer for all examples
-        keyword_scorer = KeywordRelevanceScorer(
-            keywords=["browser", "crawler", "web", "automation"], 
-            weight=1.0
-        )
-        
-        # EXAMPLE 1: BFS WITH MAX PAGES
-        print("\n📊 EXAMPLE 1: BFS STRATEGY WITH MAX PAGES LIMIT")
-        print("  Limit the crawler to a maximum of 5 pages")
-        
-        bfs_config = CrawlerRunConfig(
-            deep_crawl_strategy=BFSDeepCrawlStrategy(
-                max_depth=2, 
-                include_external=False,
-                url_scorer=keyword_scorer,
-                max_pages=5  # Only crawl 5 pages
-            ),
-            scraping_strategy=LXMLWebScrapingStrategy(),
-            verbose=True,
-            cache_mode=CacheMode.BYPASS,
-        )
-        
-        results = await crawler.arun(url="https://docs.crawl4ai.com", config=bfs_config)
-        
-        print(f"  ✅ Crawled exactly {len(results)} pages as specified by max_pages")
-        for result in results:
-            depth = result.metadata.get("depth", 0)
-            print(f"  → Depth: {depth} | {result.url}")
-            
-        # EXAMPLE 2: DFS WITH SCORE THRESHOLD
-        print("\n📊 EXAMPLE 2: DFS STRATEGY WITH SCORE THRESHOLD")
-        print("  Only crawl pages with a relevance score above 0.5")
-        
-        dfs_config = CrawlerRunConfig(
-            deep_crawl_strategy=DFSDeepCrawlStrategy(
-                max_depth=2,
-                include_external=False, 
-                url_scorer=keyword_scorer,
-                score_threshold=0.7,  # Only process URLs with scores above 0.5
-                max_pages=10
-            ),
-            scraping_strategy=LXMLWebScrapingStrategy(),
-            verbose=True,
-            cache_mode=CacheMode.BYPASS,
-        )
-        
-        results = await crawler.arun(url="https://docs.crawl4ai.com", config=dfs_config)
-        
-        print(f"  ✅ Crawled {len(results)} pages with scores above threshold")
-        for result in results:
-            score = result.metadata.get("score", 0)
-            depth = result.metadata.get("depth", 0)
-            print(f"  → Depth: {depth} | Score: {score:.2f} | {result.url}")
-            
-        # EXAMPLE 3: BEST-FIRST WITH BOTH CONSTRAINTS
-        print("\n📊 EXAMPLE 3: BEST-FIRST STRATEGY WITH BOTH CONSTRAINTS")
-        print("  Limit to 7 pages with scores above 0.3, prioritizing highest scores")
-        
-        bf_config = CrawlerRunConfig(
-            deep_crawl_strategy=BestFirstCrawlingStrategy(
-                max_depth=2,
-                include_external=False,
-                url_scorer=keyword_scorer,
-                max_pages=7,          # Limit to 7 pages total
-            ),
-            scraping_strategy=LXMLWebScrapingStrategy(),
-            verbose=True,
-            cache_mode=CacheMode.BYPASS,
-            stream=True,
-        )
-        
-        results = []
-        async for result in await crawler.arun(url="https://docs.crawl4ai.com", config=bf_config):
-            results.append(result)
-            score = result.metadata.get("score", 0)
-            depth = result.metadata.get("depth", 0)
-            print(f"  → Depth: {depth} | Score: {score:.2f} | {result.url}")
-            
-        print(f"  ✅ Crawled {len(results)} high-value pages with scores above 0.3")
-        if results:
-            avg_score = sum(r.metadata.get('score', 0) for r in results) / len(results)
-            print(f"  ✅ Average score: {avg_score:.2f}")
-            print("  🔍 Note: BestFirstCrawlingStrategy visited highest-scoring pages first")
-
-# 6️⃣ Wrap-Up and Key Takeaways
-async def wrap_up():
-    """
-    PART 6: Wrap-Up and Key Takeaways
-
-    Summarize the key concepts learned in this tutorial.
-    """
-    print("\n===== COMPLETE CRAWLER EXAMPLE =====")
-    print("Combining filters, scorers, and streaming for an optimized crawl")
-
-    # Create a sophisticated filter chain
-    filter_chain = FilterChain(
-        [
-            DomainFilter(
-                allowed_domains=["docs.crawl4ai.com"],
-                blocked_domains=["old.docs.crawl4ai.com"],
-            ),
-            URLPatternFilter(patterns=["*core*", "*advanced*", "*blog*"]),
-            ContentTypeFilter(allowed_types=["text/html"]),
-        ]
-    )
-
-    # Create a composite scorer that combines multiple scoring strategies
-    keyword_scorer = KeywordRelevanceScorer(
-        keywords=["crawl", "example", "async", "configuration"], weight=0.7
-    )
-    # Set up the configuration
-    config = CrawlerRunConfig(
-        deep_crawl_strategy=BestFirstCrawlingStrategy(
-            max_depth=1,
-            include_external=False,
-            filter_chain=filter_chain,
-            url_scorer=keyword_scorer,
-        ),
-        scraping_strategy=LXMLWebScrapingStrategy(),
-        stream=True,
-        verbose=True,
-    )
-
-    # Execute the crawl
-    results = []
-    start_time = time.perf_counter()
-
-    async with AsyncWebCrawler() as crawler:
-        async for result in await crawler.arun(
-            url="https://docs.crawl4ai.com", config=config
-        ):
-            results.append(result)
-            score = result.metadata.get("score", 0)
-            depth = result.metadata.get("depth", 0)
-            print(f"→ Depth: {depth} | Score: {score:.2f} | {result.url}")
-
-    duration = time.perf_counter() - start_time
-
-    # Summarize the results
-    print(f"\n✅ Crawled {len(results)} high-value pages in {duration:.2f} seconds")
-    print(
-        f"✅ Average score: {sum(r.metadata.get('score', 0) for r in results) / len(results):.2f}"
-    )
-
-    # Group by depth
-    depth_counts = {}
-    for result in results:
-        depth = result.metadata.get("depth", 0)
-        depth_counts[depth] = depth_counts.get(depth, 0) + 1
-
-    print("\n📊 Pages crawled by depth:")
-    for depth, count in sorted(depth_counts.items()):
-        print(f"  Depth {depth}: {count} pages")
-
-
-async def run_tutorial():
-    """
-    Executes all tutorial sections in sequence.
-    """
-    print("\n🚀 CRAWL4AI DEEP CRAWLING TUTORIAL 🚀")
-    print("======================================")
-    print("This tutorial will walk you through deep crawling techniques,")
-    print("from basic to advanced, using the Crawl4AI library.")
-
-    # Define sections - uncomment to run specific parts during development
-    tutorial_sections = [
-        basic_deep_crawl,
-        stream_vs_nonstream,
-        filters_and_scorers,
-        max_pages_and_thresholds, 
-        advanced_filters,
-        wrap_up,
-    ]
-
-    for section in tutorial_sections:
-        await section()
-
-    print("\n🎉 TUTORIAL COMPLETE! 🎉")
-    print("You now have a comprehensive understanding of deep crawling with Crawl4AI.")
-    print("For more information, check out https://docs.crawl4ai.com")
-
-# Execute the tutorial when run directly
-if __name__ == "__main__":
-    asyncio.run(run_tutorial())

docs/examples/docker_config_obj.py

@@ -1,249 +0,0 @@
-from crawl4ai import BrowserConfig, CrawlerRunConfig, PruningContentFilter, DefaultMarkdownGenerator
-from crawl4ai.deep_crawling.filters import ContentTypeFilter, DomainFilter
-from crawl4ai.deep_crawling.scorers import KeywordRelevanceScorer, PathDepthScorer
-from crawl4ai.cache_context import CacheMode
-from crawl4ai.deep_crawling.bfs_strategy import BFSDeepCrawlStrategy
-from crawl4ai.deep_crawling.filters import FilterChain
-from crawl4ai.deep_crawling.scorers import CompositeScorer
-from crawl4ai.docker_client import Crawl4aiDockerClient
-import json
-from rich.console import Console
-from rich.syntax import Syntax
-
-console = Console()
-
-def print_json(data: dict, title: str = None):
-    """Helper to print JSON prettily with syntax highlighting"""
-    if title:
-        console.print(f"\n[bold blue]{title}[/bold blue]")
-    json_str = json.dumps(data, indent=2)
-    syntax = Syntax(json_str, "json", theme="monokai", line_numbers=True)
-    console.print(syntax)
-
-async def part1_basic_config():
-    """PART 1: Understanding Basic Configuration Objects
-    
-    Here we create simple configuration objects and examine their structure.
-    This helps understand the basic type-params pattern used throughout the API.
-    """
-    console.print("\n[bold green]Explanation:[/bold green] Configuration objects like BrowserConfig and CrawlerRunConfig are the foundation of Crawl4AI. They define how the crawler behaves—e.g., whether it runs headless or how it processes content. These objects use a 'type-params' pattern: 'type' identifies the object class, and 'params' holds its settings. This structure is key because it’s reusable and can be serialized into JSON for API calls.")
-    
-    # Create a simple browser config
-    browser_config = BrowserConfig(
-        headless=False,
-        viewport_width=500,
-        headers = {"User-Agent": "Mozilla/5.0"}
-    )
-    
-    # Show its structure
-    print_json(browser_config.dump(), "Simple Browser Config Structure")
-    
-    # Create a more complex config with nested objects
-    crawler_config = CrawlerRunConfig(
-        word_count_threshold=200,
-        markdown_generator=DefaultMarkdownGenerator(
-            content_filter=PruningContentFilter(threshold=0.5)
-        )
-    )
-    
-    print_json(crawler_config.dump(), "Complex Config with Nested Objects")
-
-async def part2_manual_json():
-    """PART 2: Building JSON Manually
-    
-    Learn how to construct the JSON structure by hand.
-    This demonstrates deep understanding of the configuration format.
-    """
-    console.print("\n[bold green]Explanation:[/bold green] Manually building JSON configurations mirrors how the API expects data. It’s a hands-on way to learn the exact structure—each object has a 'type' and 'params' section. This is useful when you’re troubleshooting or working without the SDK, as it forces you to understand every detail of the config format.")
-    
-    # Manual browser config
-    manual_browser = {
-        "type": "BrowserConfig",
-        "params": {
-            "headless": True,
-            "viewport": {
-                "type": "dict",
-                "value": {
-                    "width": 1200,
-                    "height": 800
-                }
-            }
-        }
-    }
-    
-    # Validate by loading into BrowserConfig
-    loaded_config = BrowserConfig.load(manual_browser)
-    print_json(loaded_config.dump(), "Manually Created -> Loaded -> Dumped")
-    
-    # Show they're equivalent
-    original = BrowserConfig(headless=True, viewport={"width": 1200, "height": 800})
-    assert loaded_config.dump() == original.dump(), "Configs are equivalent!"
-    
-async def part3_complex_structures():
-    """PART 3: Working with Complex Nested Structures
-    
-    Explore more complex configurations with multiple levels of nesting.
-    This shows how the type-params pattern scales to complex scenarios.
-    """
-    console.print("\n[bold green]Explanation:[/bold green] Real-world crawling often requires detailed settings—like filtering content or customizing output. Here, we nest objects (e.g., a markdown generator with a content filter) using the same 'type-params' pattern. This nesting lets you fine-tune the crawler’s behavior at multiple levels, making it powerful and flexible.")
-    
-    config = CrawlerRunConfig(
-        cache_mode=CacheMode.BYPASS,
-        markdown_generator=DefaultMarkdownGenerator(
-            content_filter=PruningContentFilter()
-        ),
-        deep_crawl_strategy=BFSDeepCrawlStrategy(
-            max_depth=5,
-            filter_chain=FilterChain(
-                filters=[
-                    ContentTypeFilter(allowed_types=["text/html"]),
-                    DomainFilter(allowed_domains=["example.com"])
-                ]
-            ),
-            url_scorer=CompositeScorer(
-                scorers=[
-                    KeywordRelevanceScorer(keywords=["data", "analysis"]),
-                    PathDepthScorer(optimal_depth=3)
-                ]
-            )
-        )
-    )
-    
-    print_json(config.dump(), "Deep Nested Configuration")
-
-async def part4_client_sdk():
-    """PART 4: Using the Client SDK
-    
-    Demonstrate how the SDK makes working with the API simple by handling
-    all the complex serialization automatically.
-    """
-    console.print("\n[bold green]Explanation:[/bold green] The Crawl4aiDockerClient SDK is a time-saver—it takes your configuration objects and turns them into API-ready JSON automatically. This means less manual work and fewer mistakes. You just define your settings, pass them to the SDK, and it handles the rest, making crawling easier and faster.")
-    
-    async with Crawl4aiDockerClient(base_url="http://localhost:8000") as client:
-        # You would normally authenticate here if JWT is enabled
-        await client.authenticate("user@example.com")
-        
-        # Create configs
-        browser_config = BrowserConfig(headless=True)
-        crawler_config = CrawlerRunConfig(stream=False)
-        
-        # SDK handles all serialization
-        result = await client.crawl(
-            urls=["https://example.com"],
-            browser_config=browser_config,
-            crawler_config=crawler_config
-        )
-        
-        console.print("\n[bold green]🚀 Crawl completed successfully![/bold green]")
-        console.print(f"Markdown length: {len(result.markdown)} characters")
-
-async def part5_direct_api():
-    """PART 5: Using the API Directly
-    
-    Learn how to make direct API calls without the SDK.
-    This demonstrates the raw request structure and gives more control.
-    """
-    console.print("\n[bold green]Explanation:[/bold green] Skipping the SDK means you’re in full control—you build the JSON payload yourself and send it to the API. This is harder but gives you a deeper understanding of how Crawl4AI works under the hood. It’s also useful if you’re integrating with systems that don’t use the SDK.")
-    
-    import aiohttp
-    from datetime import datetime
-
-    # Prepare the request payload
-    payload = {
-        "urls": ["https://example.com"],
-        "browser_config": {
-            "type": "BrowserConfig",
-            "params": {
-                "headless": True,
-                "viewport": {
-                    "type": "dict",
-                    "value": {
-                        "width": 1200,
-                        "height": 800
-                    }
-                }
-            }
-        },
-        "crawler_config": {
-            "type": "CrawlerRunConfig",
-            "params": {
-                "cache_mode": "bypass",
-                "markdown_generator": {
-                    "type": "DefaultMarkdownGenerator",
-                    "params": {
-                        "content_filter": {
-                            "type": "PruningContentFilter",
-                            "params": {
-                                "threshold": 0.48,
-                                "threshold_type": "fixed"
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-    print_json(payload, "Direct API Request Payload")
-
-    async with aiohttp.ClientSession() as session:
-        # If JWT is enabled, get token first
-        token_response = await session.post(
-            "http://localhost:8000/token",
-            json={"email": "user@example.com"}
-        )
-        token = (await token_response.json())["access_token"]
-        headers = {"Authorization": f"Bearer {token}"}
-
-        # Make the crawl request
-        start_time = datetime.now()
-        async with session.post(
-            "http://localhost:8000/crawl",
-            json=payload,
-            headers=headers  # comment if using JWT
-        ) as response:
-            result = await response.json()
-            duration = (datetime.now() - start_time).total_seconds()
-
-        console.print(f"\n[bold green]✅ API call completed in {duration:.2f}s[/bold green]")
-        print_json(result, "API Response")
-
-async def part6_wrap_up():
-    """PART 6: Wrap-Up and Key Takeaways
-    
-    Summarize the key concepts learned in this tutorial.
-    """
-    console.print("\n[bold yellow]🎓 Tutorial Wrap-Up[/bold yellow]")
-    console.print("[italic]Key Takeaways:[/italic]\n")
-    console.print("- **Configurations:** Use the type-params pattern to define settings flexibly.")
-    console.print("- **Manual JSON:** Build configs by hand to master the structure.")
-    console.print("- **Nesting:** Customize deeply with nested objects.")
-    console.print("- **SDK:** Simplify API calls with automatic serialization.")
-    console.print("- **Direct API:** Gain control by crafting raw requests.")
-    console.print("\n[bold green]🚀 You’re ready to crawl with Crawl4AI![/bold green]")
-
-async def main():
-    """Main tutorial runner that executes each part in sequence"""
-    console.print("\n[bold yellow]🎓 Crawl4AI Docker Tutorial[/bold yellow]")
-    console.print("[italic]Learn how to work with configuration objects and the Docker API[/italic]\n")
-    
-    parts = [
-        (part1_basic_config, "Understanding Basic Configurations"),
-        (part2_manual_json, "Manual JSON Construction"),
-        (part3_complex_structures, "Complex Nested Structures"),
-        (part4_client_sdk, "Using the Client SDK"),
-        (part5_direct_api, "Direct API Integration"),
-        (part6_wrap_up, "Wrap-Up and Key Takeaways")
-    ]
-    
-    for func, title in parts:
-        console.print(f"\n[bold cyan]📚 {title}[/bold cyan]")
-        console.print("[dim]" + func.__doc__.strip() + "[/dim]\n")
-        await func()
-        if func != part6_wrap_up:  # No pause after wrap-up
-            input("\nPress Enter to continue...\n")
-
-# Run the tutorial
-if __name__ == "__main__":
-    import asyncio
-    asyncio.run(main())

docs/examples/docker_python_rest_api.py

@@ -1,214 +0,0 @@
-import asyncio
-import json
-from typing import Optional
-from urllib.parse import quote
-
-async def get_token(session, email: str = "test@example.com") -> str:
-    """Fetch a JWT token from the /token endpoint."""
-    url = "http://localhost:8000/token"
-    payload = {"email": email}
-    print(f"\nFetching token from {url} with email: {email}")
-    try:
-        async with session.post(url, json=payload) as response:
-            status = response.status
-            data = await response.json()
-            print(f"Token Response Status: {status}")
-            print(f"Token Response: {json.dumps(data, indent=2)}")
-            if status == 200:
-                return data["access_token"]
-            else:
-                raise Exception(f"Failed to get token: {data.get('detail', 'Unknown error')}")
-    except Exception as e:
-        print(f"Error fetching token: {str(e)}")
-        raise
-
-async def test_endpoint(
-    session,
-    endpoint: str,
-    url: str,
-    token: str,
-    params: Optional[dict] = None,
-    expected_status: int = 200
-) -> Optional[dict]:
-    """Test an endpoint with token and print results."""
-    params = params or {}
-    param_str = "&".join(f"{k}={v}" for k, v in params.items())
-    full_url = f"http://localhost:8000/{endpoint}/{quote(url)}"
-    if param_str:
-        full_url += f"?{param_str}"
-    
-    headers = {"Authorization": f"Bearer {token}"}
-    print(f"\nTesting: {full_url}")
-    
-    try:
-        async with session.get(full_url, headers=headers) as response:
-            status = response.status
-            try:
-                data = await response.json()
-            except:
-                data = await response.text()
-            
-            print(f"Status: {status} (Expected: {expected_status})")
-            if isinstance(data, dict):
-                print(f"Response: {json.dumps(data, indent=2)}")
-            else:
-                print(f"Response: {data[:500]}...")  # First 500 chars
-            assert status == expected_status, f"Expected {expected_status}, got {status}"
-            return data
-    except Exception as e:
-        print(f"Error: {str(e)}")
-        return None
-
-
-async def test_stream_crawl(session, token: str):
-    """Test the /crawl/stream endpoint with multiple URLs."""
-    url = "http://localhost:8000/crawl/stream"
-    payload = {
-        "urls": [
-            "https://example.com",
-            "https://example.com/page1",  # Replicated example.com with variation
-            "https://example.com/page2",  # Replicated example.com with variation
-            "https://example.com/page3",  # Replicated example.com with variation
-            # "https://www.python.org",
-            # "https://news.ycombinator.com/news"
-        ],
-        "browser_config": {"headless": True, "viewport": {"width": 1200}},
-        "crawler_config": {"stream": True, "cache_mode": "aggressive"}
-    }
-    headers = {"Authorization": f"Bearer {token}"}
-    print(f"\nTesting Streaming Crawl: {url}")
-    print(f"Payload: {json.dumps(payload, indent=2)}")
-    
-    try:
-        async with session.post(url, json=payload, headers=headers) as response:
-            status = response.status
-            print(f"Status: {status} (Expected: 200)")
-            assert status == 200, f"Expected 200, got {status}"
-            
-            # Read streaming response line-by-line (NDJSON)
-            async for line in response.content:
-                if line:
-                    data = json.loads(line.decode('utf-8').strip())
-                    print(f"Streamed Result: {json.dumps(data, indent=2)}")
-    except Exception as e:
-        print(f"Error in streaming crawl test: {str(e)}")
-
-async def run_tests():
-    import aiohttp
-    print("Starting API Tests...")
-    
-    # Test URLs
-    urls = [
-        "example.com",
-        "https://www.python.org",
-        "https://news.ycombinator.com/news",
-        "https://github.com/trending"
-    ]
-    
-    async with aiohttp.ClientSession() as session:
-        token = "test_token"
-        # If jwt is enabled, authenticate first
-        # Fetch token once and reuse it
-        # token = await get_token(session)
-        # if not token:
-        #     print("Aborting tests due to token failure!")
-        #     return
-        
-        print("\n=== Testing Crawl Endpoint ===")
-        crawl_payload = {
-            "urls": ["https://example.com"],
-            "browser_config": {"headless": True},
-            "crawler_config": {"stream": False}
-        }
-        async with session.post(
-            "http://localhost:8000/crawl",
-            json=crawl_payload,
-            headers={"Authorization": f"Bearer {token}"}
-        ) as response:
-            status = response.status
-            data = await response.json()
-            print(f"\nCrawl Endpoint Status: {status}")
-            print(f"Crawl Response: {json.dumps(data, indent=2)}")
-        
-
-        print("\n=== Testing Crawl Stream Endpoint ===")
-        await test_stream_crawl(session, token)
-
-        print("\n=== Testing Markdown Endpoint ===")
-        for url in []: #urls:
-            for filter_type in ["raw", "fit", "bm25", "llm"]:
-                params = {"f": filter_type}
-                if filter_type in ["bm25", "llm"]:
-                    params["q"] = "extract main content"
-                
-                for cache in ["0", "1"]:
-                    params["c"] = cache
-                    await test_endpoint(session, "md", url, token, params)
-                    await asyncio.sleep(1)  # Be nice to the server
-
-        print("\n=== Testing LLM Endpoint ===")
-        for url in urls:
-            # Test basic extraction (direct response now)
-            result = await test_endpoint(
-                session,
-                "llm",
-                url,
-                token,
-                {"q": "Extract title and main content"}
-            )
-            
-            # Test with schema (direct response)
-            schema = {
-                "type": "object",
-                "properties": {
-                    "title": {"type": "string"},
-                    "content": {"type": "string"},
-                    "links": {"type": "array", "items": {"type": "string"}}
-                }
-            }
-            result = await test_endpoint(
-                session,
-                "llm",
-                url,
-                token,
-                {
-                    "q": "Extract content with links",
-                    "s": json.dumps(schema),
-                    "c": "1"  # Test with cache
-                }
-            )
-            await asyncio.sleep(2)  # Be nice to the server
-        
-        print("\n=== Testing Error Cases ===")
-        # Test invalid URL
-        await test_endpoint(
-            session,
-            "md",
-            "not_a_real_url",
-            token,
-            expected_status=500
-        )
-        
-        # Test invalid filter type
-        await test_endpoint(
-            session,
-            "md",
-            "example.com",
-            token,
-            {"f": "invalid"},
-            expected_status=422
-        )
-        
-        # Test LLM without query (should fail per your server logic)
-        await test_endpoint(
-            session,
-            "llm",
-            "example.com",
-            token,
-            expected_status=400
-        )
-        
-    print("\nAll tests completed!")
-
-if __name__ == "__main__":
-    asyncio.run(run_tests())

docs/examples/docker_python_sdk.py

@@ -1,35 +0,0 @@
-import asyncio
-from crawl4ai.docker_client import Crawl4aiDockerClient
-from crawl4ai import (
-    BrowserConfig,
-    CrawlerRunConfig
-)
-
-async def main():
-    async with Crawl4aiDockerClient(base_url="http://localhost:8000", verbose=True) as client:
-        # If jwt is enabled, authenticate first
-        # await client.authenticate("test@example.com")
-        
-        # Non-streaming crawl
-        results = await client.crawl(
-            ["https://example.com", "https://python.org"],
-            browser_config=BrowserConfig(headless=True),
-            crawler_config=CrawlerRunConfig()
-        )
-        print(f"Non-streaming results: {results}")
-        
-        # Streaming crawl
-        crawler_config = CrawlerRunConfig(stream=True)
-        async for result in await client.crawl(
-            ["https://example.com", "https://python.org"],
-            browser_config=BrowserConfig(headless=True),
-            crawler_config=crawler_config
-        ):
-            print(f"Streamed result: {result}")
-        
-        # Get schema
-        schema = await client.get_schema()
-        print(f"Schema: {schema}")
-
-if __name__ == "__main__":
-    asyncio.run(main())

docs/examples/extraction_strategies_example.py

@@ -11,7 +11,6 @@ import asyncio
 import os
 
 from crawl4ai import AsyncWebCrawler, BrowserConfig, CrawlerRunConfig, CacheMode
-from crawl4ai.async_configs import LlmConfig
 from crawl4ai.extraction_strategy import (
     LLMExtractionStrategy,
     JsonCssExtractionStrategy,
@@ -39,9 +38,9 @@ async def run_extraction(crawler: AsyncWebCrawler, url: str, strategy, name: str
         if result.success:
             print(f"\n=== {name} Results ===")
             print(f"Extracted Content: {result.extracted_content}")
-            print(f"Raw Markdown Length: {len(result.markdown.raw_markdown)}")
+            print(f"Raw Markdown Length: {len(result.markdown_v2.raw_markdown)}")
             print(
-                f"Citations Markdown Length: {len(result.markdown.markdown_with_citations)}"
+                f"Citations Markdown Length: {len(result.markdown_v2.markdown_with_citations)}"
             )
         else:
             print(f"Error in {name}: Crawl failed")
@@ -61,19 +60,22 @@ async def main():
 
     # 1. LLM Extraction with different input formats
     markdown_strategy = LLMExtractionStrategy(
-        llmConfig = LlmConfig(provider="openai/gpt-4o-mini", api_token=os.getenv("OPENAI_API_KEY")),
+        provider="openai/gpt-4o-mini",
+        api_token=os.getenv("OPENAI_API_KEY"),
         instruction="Extract product information including name, price, and description",
     )
 
     html_strategy = LLMExtractionStrategy(
         input_format="html",
-        llmConfig=LlmConfig(provider="openai/gpt-4o-mini", api_token=os.getenv("OPENAI_API_KEY")),
+        provider="openai/gpt-4o-mini",
+        api_token=os.getenv("OPENAI_API_KEY"),
         instruction="Extract product information from HTML including structured data",
     )
 
     fit_markdown_strategy = LLMExtractionStrategy(
         input_format="fit_markdown",
-        llmConfig=LlmConfig(provider="openai/gpt-4o-mini",api_token=os.getenv("OPENAI_API_KEY")),
+        provider="openai/gpt-4o-mini",
+        api_token=os.getenv("OPENAI_API_KEY"),
         instruction="Extract product information from cleaned markdown",
     )
 

docs/examples/hello_world.py

@@ -1,13 +1,5 @@
 import asyncio
-from crawl4ai import (
-    AsyncWebCrawler,
-    BrowserConfig,
-    CrawlerRunConfig,
-    CacheMode,
-    DefaultMarkdownGenerator,
-    PruningContentFilter,
-    CrawlResult
-)
+from crawl4ai import *
 
 
 async def main():
@@ -16,17 +8,15 @@ async def main():
         crawler_config = CrawlerRunConfig(
             cache_mode=CacheMode.BYPASS,
             markdown_generator=DefaultMarkdownGenerator(
-                # content_filter=PruningContentFilter(
-                #     threshold=0.48, threshold_type="fixed", min_word_threshold=0
-                # )
+                content_filter=PruningContentFilter(
+                    threshold=0.48, threshold_type="fixed", min_word_threshold=0
+                )
             ),
         )
-        result : CrawlResult = await crawler.arun(
-            # url="https://www.helloworld.org", config=crawler_config
-            url="https://www.kidocode.com", config=crawler_config
+        result = await crawler.arun(
+            url="https://www.helloworld.org", config=crawler_config
         )
-        print(result.markdown.raw_markdown[:500])
-        # print(result.model_dump())
+        print(result.markdown_v2.raw_markdown[:500])
 
 
 if __name__ == "__main__":

docs/examples/identity_based_browsing.py

@@ -1,108 +0,0 @@
-"""
-Identity-Based Browsing Example with Crawl4AI
-
-This example demonstrates how to:
-1. Create a persistent browser profile interactively
-2. List available profiles
-3. Use a saved profile for crawling authenticated sites
-4. Delete profiles when no longer needed
-
-Uses the new BrowserProfiler class for profile management.
-"""
-
-import asyncio
-from crawl4ai import AsyncWebCrawler, BrowserConfig
-from crawl4ai.browser_profiler import BrowserProfiler
-from crawl4ai.async_logger import AsyncLogger
-from colorama import Fore, Style, init
-
-# Initialize colorama
-init()
-
-# Create a shared logger instance
-logger = AsyncLogger(verbose=True)
-
-# Create a shared BrowserProfiler instance
-profiler = BrowserProfiler(logger=logger)
-
-
-async def crawl_with_profile(profile_path, url):
-    """Use a profile to crawl an authenticated page"""
-    logger.info(f"\nCrawling {Fore.CYAN}{url}{Style.RESET_ALL} using profile at {Fore.YELLOW}{profile_path}{Style.RESET_ALL}", tag="CRAWL")
-    
-    # Create browser config with the profile path
-    browser_config = BrowserConfig(
-        headless=False,  # Set to False if you want to see the browser window
-        use_managed_browser=True,  # Required for persistent profiles
-        user_data_dir=profile_path
-    )
-    
-    start_time = asyncio.get_event_loop().time()
-    
-    # Initialize crawler with the browser config
-    async with AsyncWebCrawler(config=browser_config) as crawler:
-        # Crawl the URL - You should have access to authenticated content now
-        result = await crawler.arun(url)
-        
-        elapsed_time = asyncio.get_event_loop().time() - start_time
-        
-        if result.success:
-            # Use url_status method for consistent logging
-            logger.url_status(url, True, elapsed_time, tag="CRAWL")
-            
-            # Print page title or some indication of success
-            title = result.metadata.get("title", "")
-            logger.success(f"Page title: {Fore.GREEN}{title}{Style.RESET_ALL}", tag="CRAWL")
-            return result
-        else:
-            # Log error status
-            logger.error_status(url, result.error_message, tag="CRAWL")
-            return None
-
-
-async def main():
-    logger.info(f"{Fore.CYAN}Identity-Based Browsing Example with Crawl4AI{Style.RESET_ALL}", tag="DEMO")
-    logger.info("This example demonstrates using profiles for authenticated browsing", tag="DEMO")
-    
-    # Choose between interactive mode and automatic mode
-    mode = input(f"{Fore.CYAN}Run in [i]nteractive mode or [a]utomatic mode? (i/a): {Style.RESET_ALL}").lower()
-    
-    if mode == 'i':
-        # Interactive profile management - use the interactive_manager method
-        # Pass the crawl_with_profile function as the callback for the "crawl a website" option
-        await profiler.interactive_manager(crawl_callback=crawl_with_profile)
-    else:
-        # Automatic mode - simplified example
-        profiles = profiler.list_profiles()
-        
-        if not profiles:
-            # Create a new profile if none exists
-            logger.info("No profiles found. Creating a new one...", tag="DEMO")
-            profile_path = await profiler.create_profile()
-            if not profile_path:
-                logger.error("Cannot proceed without a valid profile", tag="DEMO")
-                return
-        else:
-            # Use the first (most recent) profile
-            profile_path = profiles[0]["path"]
-            logger.info(f"Using existing profile: {Fore.CYAN}{profiles[0]['name']}{Style.RESET_ALL}", tag="DEMO")
-        
-        # Example: Crawl an authenticated page
-        urls_to_crawl = [
-            "https://github.com/settings/profile",  # GitHub requires login
-            # "https://twitter.com/home",  # Twitter requires login
-            # "https://www.linkedin.com/feed/",  # LinkedIn requires login
-        ]
-        
-        for url in urls_to_crawl:
-            await crawl_with_profile(profile_path, url)
-
-
-if __name__ == "__main__":
-    try:
-        # Run the async main function
-        asyncio.run(main())
-    except KeyboardInterrupt:
-        logger.warning("Example interrupted by user", tag="DEMO")
-    except Exception as e:
-        logger.error(f"Error in example: {str(e)}", tag="DEMO")

docs/examples/llm_extraction_openai_pricing.py

@@ -1,11 +1,9 @@
-from crawl4ai.async_configs import LlmConfig
-from crawl4ai import AsyncWebCrawler, LLMExtractionStrategy
+from crawl4ai.extraction_strategy import *
+from crawl4ai.crawler_strategy import *
 import asyncio
-import os
-import json
 from pydantic import BaseModel, Field
 
-url = "https://openai.com/api/pricing/"
+url = r"https://openai.com/api/pricing/"
 
 
 class OpenAIModelFee(BaseModel):
@@ -15,6 +13,10 @@ class OpenAIModelFee(BaseModel):
         ..., description="Fee for output token for the OpenAI model."
     )
 
+
+from crawl4ai import AsyncWebCrawler
+
+
 async def main():
     # Use AsyncWebCrawler
     async with AsyncWebCrawler() as crawler:
@@ -23,7 +25,8 @@ async def main():
             word_count_threshold=1,
             extraction_strategy=LLMExtractionStrategy(
                 # provider= "openai/gpt-4o", api_token = os.getenv('OPENAI_API_KEY'),
-                llmConfig=LlmConfig(provider="groq/llama-3.1-70b-versatile", api_token=os.getenv("GROQ_API_KEY")),
+                provider="groq/llama-3.1-70b-versatile",
+                api_token=os.getenv("GROQ_API_KEY"),
                 schema=OpenAIModelFee.model_json_schema(),
                 extraction_type="schema",
                 instruction="From the crawled content, extract all mentioned model names along with their "