Fix the model nam ein quick start example

- Update version number to 0.3.71
- Add sleep_on_close option to AsyncPlaywrightCrawlerStrategy
- Enhance context creation with additional options
- Improve error message formatting and visibility
- Update quickstart documentation

.gitignore

@@ -202,5 +202,7 @@ todo.md
 git_changes.py
 git_changes.md
 pypi_build.sh
+git_issues.py
+git_issues.md
 
 .tests/

CHANGELOG.md

@@ -1,5 +1,79 @@
 # Changelog
 
+## [v0.3.71] - 2024-10-18
+
+### Changes
+1. **Version Update**:
+   - Updated version number from 0.3.7 to 0.3.71.
+
+2. **Crawler Enhancements**:
+   - Added `sleep_on_close` option to AsyncPlaywrightCrawlerStrategy for delayed browser closure.
+   - Improved context creation with additional options:
+     - Enabled `accept_downloads` and `java_script_enabled`.
+     - Added a cookie to enable cookies by default.
+
+3. **Error Handling Improvements**:
+   - Enhanced error messages in AsyncWebCrawler's `arun` method.
+   - Updated error reporting format for better visibility and consistency.
+
+4. **Performance Optimization**:
+   - Commented out automatic page and context closure in `crawl` method to potentially improve performance in certain scenarios.
+
+### Documentation
+- Updated quickstart notebook:
+  - Changed installation command to use the released package instead of GitHub repository.
+  - Updated kernel display name.
+
+### Developer Notes
+- Minor code refactoring and cleanup.
+
+## [v0.3.7] - 2024-10-17
+
+### New Features
+1. **Enhanced Browser Stealth**: 
+   - Implemented `playwright_stealth` for improved bot detection avoidance.
+   - Added `StealthConfig` for fine-tuned control over stealth parameters.
+
+2. **User Simulation**:
+   - New `simulate_user` option to mimic human-like interactions (mouse movements, clicks, keyboard presses).
+
+3. **Navigator Override**:
+   - Added `override_navigator` option to modify navigator properties, further improving bot detection evasion.
+
+4. **Improved iframe Handling**:
+   - New `process_iframes` parameter to extract and integrate iframe content into the main page.
+
+5. **Flexible Browser Selection**:
+   - Support for choosing between Chromium, Firefox, and WebKit browsers.
+
+6. **Include Links in Markdown**:
+    - Added support for including links in Markdown content, by definin g a new flag `include_links_on_markdown` in `crawl` method.   
+
+### Improvements
+1. **Better Error Handling**:
+   - Enhanced error reporting in WebScrappingStrategy with detailed error messages and suggestions.
+   - Added console message and error logging for better debugging.
+
+2. **Image Processing Enhancements**:
+   - Improved image dimension updating and filtering logic.
+
+3. **Crawling Flexibility**:
+   - Added support for custom viewport sizes.
+   - Implemented delayed content retrieval with `delay_before_return_html` parameter.
+
+4. **Performance Optimization**:
+   - Adjusted default semaphore count for parallel crawling.
+
+### Bug Fixes
+- Fixed an issue where the HTML content could be empty after processing.
+
+### Examples
+- Added new example `crawl_with_user_simulation()` demonstrating the use of user simulation and navigator override features.
+
+### Developer Notes
+- Refactored code for better maintainability and readability.
+- Updated browser launch arguments for improved compatibility and performance.
+
 ## [v0.3.6] - 2024-10-12 
 
 ### 1. Improved Crawling Control

crawl4ai/__init__.py

@@ -3,7 +3,7 @@
 from .async_webcrawler import AsyncWebCrawler
 from .models import CrawlResult
 
-__version__ = "0.3.6"
+__version__ = "0.3.71"
 
 __all__ = [
     "AsyncWebCrawler",

crawl4ai/async_crawler_strategy copy.py

@@ -0,0 +1,558 @@
+import asyncio
+import base64
+import time
+from abc import ABC, abstractmethod
+from typing import Callable, Dict, Any, List, Optional, Awaitable
+import os
+from playwright.async_api import async_playwright, Page, Browser, Error
+from io import BytesIO
+from PIL import Image, ImageDraw, ImageFont
+from pathlib import Path
+from playwright.async_api import ProxySettings
+from pydantic import BaseModel
+import hashlib
+import json
+import uuid
+from playwright_stealth import stealth_async
+
+class AsyncCrawlResponse(BaseModel):
+    html: str
+    response_headers: Dict[str, str]
+    status_code: int
+    screenshot: Optional[str] = None
+    get_delayed_content: Optional[Callable[[Optional[float]], Awaitable[str]]] = None
+
+    class Config:
+        arbitrary_types_allowed = True
+
+class AsyncCrawlerStrategy(ABC):
+    @abstractmethod
+    async def crawl(self, url: str, **kwargs) -> AsyncCrawlResponse:
+        pass
+    
+    @abstractmethod
+    async def crawl_many(self, urls: List[str], **kwargs) -> List[AsyncCrawlResponse]:
+        pass
+    
+    @abstractmethod
+    async def take_screenshot(self, url: str) -> str:
+        pass
+    
+    @abstractmethod
+    def update_user_agent(self, user_agent: str):
+        pass
+    
+    @abstractmethod
+    def set_hook(self, hook_type: str, hook: Callable):
+        pass
+
+class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
+    def __init__(self, use_cached_html=False, js_code=None, **kwargs):
+        self.use_cached_html = use_cached_html
+        self.user_agent = kwargs.get(
+            "user_agent",
+            "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
+            "(KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36"
+        )
+        self.proxy = kwargs.get("proxy")
+        self.headless = kwargs.get("headless", True)
+        self.browser_type = kwargs.get("browser_type", "chromium")
+        self.headers = kwargs.get("headers", {})
+        self.sessions = {}
+        self.session_ttl = 1800 
+        self.js_code = js_code
+        self.verbose = kwargs.get("verbose", False)
+        self.playwright = None
+        self.browser = None
+        self.hooks = {
+            'on_browser_created': None,
+            'on_user_agent_updated': None,
+            'on_execution_started': None,
+            'before_goto': None,
+            'after_goto': None,
+            'before_return_html': None,
+            'before_retrieve_html': None
+        }
+
+    async def __aenter__(self):
+        await self.start()
+        return self
+
+    async def __aexit__(self, exc_type, exc_val, exc_tb):
+        await self.close()
+
+    async def start(self):
+        if self.playwright is None:
+            self.playwright = await async_playwright().start()
+        if self.browser is None:
+            browser_args = {
+                "headless": self.headless,
+                "args": [
+                    "--disable-gpu",
+                    "--no-sandbox",
+                    "--disable-dev-shm-usage",
+                    "--disable-blink-features=AutomationControlled",
+                    "--disable-infobars",
+                    "--window-position=0,0",
+                    "--ignore-certificate-errors",
+                    "--ignore-certificate-errors-spki-list",
+                    # "--headless=new",  # Use the new headless mode
+                ]
+            }
+            
+            # Add proxy settings if a proxy is specified
+            if self.proxy:
+                proxy_settings = ProxySettings(server=self.proxy)
+                browser_args["proxy"] = proxy_settings
+                
+            # Select the appropriate browser based on the browser_type
+            if self.browser_type == "firefox":
+                self.browser = await self.playwright.firefox.launch(**browser_args)
+            elif self.browser_type == "webkit":
+                self.browser = await self.playwright.webkit.launch(**browser_args)
+            else:
+                self.browser = await self.playwright.chromium.launch(**browser_args)
+
+            await self.execute_hook('on_browser_created', self.browser)
+
+    async def close(self):
+        if self.browser:
+            await self.browser.close()
+            self.browser = None
+        if self.playwright:
+            await self.playwright.stop()
+            self.playwright = None
+
+    def __del__(self):
+        if self.browser or self.playwright:
+            asyncio.get_event_loop().run_until_complete(self.close())
+
+    def set_hook(self, hook_type: str, hook: Callable):
+        if hook_type in self.hooks:
+            self.hooks[hook_type] = hook
+        else:
+            raise ValueError(f"Invalid hook type: {hook_type}")
+
+    async def execute_hook(self, hook_type: str, *args):
+        hook = self.hooks.get(hook_type)
+        if hook:
+            if asyncio.iscoroutinefunction(hook):
+                return await hook(*args)
+            else:
+                return hook(*args)
+        return args[0] if args else None
+
+    def update_user_agent(self, user_agent: str):
+        self.user_agent = user_agent
+
+    def set_custom_headers(self, headers: Dict[str, str]):
+        self.headers = headers
+
+    async def kill_session(self, session_id: str):
+        if session_id in self.sessions:
+            context, page, _ = self.sessions[session_id]
+            await page.close()
+            await context.close()
+            del self.sessions[session_id]
+
+    def _cleanup_expired_sessions(self):
+        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 smart_wait(self, page: Page, wait_for: str, timeout: float = 30000):
+        wait_for = wait_for.strip()
+        
+        if wait_for.startswith('js:'):
+            # Explicitly specified JavaScript
+            js_code = wait_for[3:].strip()
+            return await self.csp_compliant_wait(page, js_code, timeout)
+        elif wait_for.startswith('css:'):
+            # Explicitly specified CSS selector
+            css_selector = wait_for[4:].strip()
+            try:
+                await page.wait_for_selector(css_selector, timeout=timeout)
+            except Error as e:
+                if 'Timeout' in str(e):
+                    raise TimeoutError(f"Timeout after {timeout}ms waiting for selector '{css_selector}'")
+                else:
+                    raise ValueError(f"Invalid CSS selector: '{css_selector}'")
+        else:
+            # Auto-detect based on content
+            if wait_for.startswith('()') or wait_for.startswith('function'):
+                # It's likely a JavaScript function
+                return await self.csp_compliant_wait(page, wait_for, timeout)
+            else:
+                # Assume it's a CSS selector first
+                try:
+                    await page.wait_for_selector(wait_for, timeout=timeout)
+                except Error as e:
+                    if 'Timeout' in str(e):
+                        raise TimeoutError(f"Timeout after {timeout}ms waiting for selector '{wait_for}'")
+                    else:
+                        # If it's not a timeout error, it might be an invalid selector
+                        # Let's try to evaluate it as a JavaScript function as a fallback
+                        try:
+                            return await self.csp_compliant_wait(page, f"() => {{{wait_for}}}", timeout)
+                        except Error:
+                            raise ValueError(f"Invalid wait_for parameter: '{wait_for}'. "
+                                             "It should be either a valid CSS selector, a JavaScript function, "
+                                             "or explicitly prefixed with 'js:' or 'css:'.")
+    
+    async def csp_compliant_wait(self, page: Page, user_wait_function: str, timeout: float = 30000):
+        wrapper_js = f"""
+        async () => {{
+            const userFunction = {user_wait_function};
+            const startTime = Date.now();
+            while (true) {{
+                if (await userFunction()) {{
+                    return true;
+                }}
+                if (Date.now() - startTime > {timeout}) {{
+                    throw new Error('Timeout waiting for condition');
+                }}
+                await new Promise(resolve => setTimeout(resolve, 100));
+            }}
+        }}
+        """
+        
+        try:
+            await page.evaluate(wrapper_js)
+        except TimeoutError:
+            raise TimeoutError(f"Timeout after {timeout}ms waiting for condition")
+        except Exception as e:
+            raise RuntimeError(f"Error in wait condition: {str(e)}")
+
+    async def process_iframes(self, page):
+        # Find all iframes
+        iframes = await page.query_selector_all('iframe')
+        
+        for i, iframe in enumerate(iframes):
+            try:
+                # Add a unique identifier to the iframe
+                await iframe.evaluate(f'(element) => element.id = "iframe-{i}"')
+                
+                # Get the frame associated with this iframe
+                frame = await iframe.content_frame()
+                
+                if frame:
+                    # Wait for the frame to load
+                    await frame.wait_for_load_state('load', timeout=30000)  # 30 seconds timeout
+                    
+                    # Extract the content of the iframe's body
+                    iframe_content = await frame.evaluate('() => document.body.innerHTML')
+                    
+                    # Generate a unique class name for this iframe
+                    class_name = f'extracted-iframe-content-{i}'
+                    
+                    # Replace the iframe with a div containing the extracted content
+                    _iframe = iframe_content.replace('`', '\\`')
+                    await page.evaluate(f"""
+                        () => {{
+                            const iframe = document.getElementById('iframe-{i}');
+                            const div = document.createElement('div');
+                            div.innerHTML = `{_iframe}`;
+                            div.className = '{class_name}';
+                            iframe.replaceWith(div);
+                        }}
+                    """)
+                else:
+                    print(f"Warning: Could not access content frame for iframe {i}")
+            except Exception as e:
+                print(f"Error processing iframe {i}: {str(e)}")
+
+        # Return the page object
+        return page  
+    
+    async def crawl(self, url: str, **kwargs) -> AsyncCrawlResponse:
+        response_headers = {}
+        status_code = None
+        
+        self._cleanup_expired_sessions()
+        session_id = kwargs.get("session_id")
+        if session_id:
+            context, page, _ = self.sessions.get(session_id, (None, None, None))
+            if not context:
+                context = await self.browser.new_context(
+                    user_agent=self.user_agent,
+                    viewport={"width": 1920, "height": 1080},
+                    proxy={"server": self.proxy} if self.proxy else None
+                )
+                await context.set_extra_http_headers(self.headers)
+                page = await context.new_page()
+                self.sessions[session_id] = (context, page, time.time())
+        else:
+            context = await self.browser.new_context(
+                user_agent=self.user_agent,
+                viewport={"width": 1920, "height": 1080},
+                proxy={"server": self.proxy} if self.proxy else None
+            )
+            await context.set_extra_http_headers(self.headers)
+            
+            if kwargs.get("override_navigator", False):
+                # Inject scripts to override navigator properties
+                await context.add_init_script("""
+                    // Pass the Permissions Test.
+                    const originalQuery = window.navigator.permissions.query;
+                    window.navigator.permissions.query = (parameters) => (
+                        parameters.name === 'notifications' ?
+                            Promise.resolve({ state: Notification.permission }) :
+                            originalQuery(parameters)
+                    );
+                    Object.defineProperty(navigator, 'webdriver', {
+                        get: () => undefined
+                    });
+                    window.navigator.chrome = {
+                        runtime: {},
+                        // Add other properties if necessary
+                    };
+                    Object.defineProperty(navigator, 'plugins', {
+                        get: () => [1, 2, 3, 4, 5],
+                    });
+                    Object.defineProperty(navigator, 'languages', {
+                        get: () => ['en-US', 'en'],
+                    });
+                    Object.defineProperty(document, 'hidden', {
+                        get: () => false
+                    });
+                    Object.defineProperty(document, 'visibilityState', {
+                        get: () => 'visible'
+                    });
+                """)
+            
+            page = await context.new_page()
+
+        try:
+            if self.verbose:
+                print(f"[LOG] 🕸️ Crawling {url} using AsyncPlaywrightCrawlerStrategy...")
+
+            if self.use_cached_html:
+                cache_file_path = os.path.join(
+                    Path.home(), ".crawl4ai", "cache", hashlib.md5(url.encode()).hexdigest()
+                )
+                if os.path.exists(cache_file_path):
+                    html = ""
+                    with open(cache_file_path, "r") as f:
+                        html = f.read()
+                    # retrieve response headers and status code from cache
+                    with open(cache_file_path + ".meta", "r") as f:
+                        meta = json.load(f)
+                        response_headers = meta.get("response_headers", {})
+                        status_code = meta.get("status_code")
+                    response = AsyncCrawlResponse(
+                        html=html, response_headers=response_headers, status_code=status_code
+                    )
+                    return response
+
+            if not kwargs.get("js_only", False):
+                await self.execute_hook('before_goto', page)
+                
+                response = await page.goto("about:blank")
+                await stealth_async(page)
+                response = await page.goto(
+                    url, wait_until="domcontentloaded", timeout=kwargs.get("page_timeout", 60000)
+                )
+                
+                # await stealth_async(page)
+                # response = await page.goto("about:blank")
+                # await stealth_async(page)
+                # await page.evaluate(f"window.location.href = '{url}'")
+                
+                await self.execute_hook('after_goto', page)
+                
+                # Get status code and headers
+                status_code = response.status
+                response_headers = response.headers
+            else:
+                status_code = 200
+                response_headers = {}
+
+            await page.wait_for_selector('body')
+            await page.evaluate("window.scrollTo(0, document.body.scrollHeight)")
+
+            js_code = kwargs.get("js_code", kwargs.get("js", self.js_code))
+            if js_code:
+                if isinstance(js_code, str):
+                    await page.evaluate(js_code)
+                elif isinstance(js_code, list):
+                    for js in js_code:
+                        await page.evaluate(js)
+                
+                await page.wait_for_load_state('networkidle')
+                # Check for on execution event
+                await self.execute_hook('on_execution_started', page)
+                
+            if kwargs.get("simulate_user", False):
+                # Simulate user interactions
+                await page.mouse.move(100, 100)
+                await page.mouse.down()
+                await page.mouse.up()
+                await page.keyboard.press('ArrowDown')
+
+            # Handle the wait_for parameter
+            wait_for = kwargs.get("wait_for")
+            if wait_for:
+                try:
+                    await self.smart_wait(page, wait_for, timeout=kwargs.get("page_timeout", 60000))
+                except Exception as e:
+                    raise RuntimeError(f"Wait condition failed: {str(e)}")
+
+
+            
+            # Update image dimensions
+            update_image_dimensions_js = """
+            () => {
+                return new Promise((resolve) => {
+                    const filterImage = (img) => {
+                        // Filter out images that are too small
+                        if (img.width < 100 && img.height < 100) return false;
+                        
+                        // Filter out images that are not visible
+                        const rect = img.getBoundingClientRect();
+                        if (rect.width === 0 || rect.height === 0) return false;
+                        
+                        // Filter out images with certain class names (e.g., icons, thumbnails)
+                        if (img.classList.contains('icon') || img.classList.contains('thumbnail')) return false;
+                        
+                        // Filter out images with certain patterns in their src (e.g., placeholder images)
+                        if (img.src.includes('placeholder') || img.src.includes('icon')) return false;
+                        
+                        return true;
+                    };
+
+                    const images = Array.from(document.querySelectorAll('img')).filter(filterImage);
+                    let imagesLeft = images.length;
+                    
+                    if (imagesLeft === 0) {
+                        resolve();
+                        return;
+                    }
+
+                    const checkImage = (img) => {
+                        if (img.complete && img.naturalWidth !== 0) {
+                            img.setAttribute('width', img.naturalWidth);
+                            img.setAttribute('height', img.naturalHeight);
+                            imagesLeft--;
+                            if (imagesLeft === 0) resolve();
+                        }
+                    };
+
+                    images.forEach(img => {
+                        checkImage(img);
+                        if (!img.complete) {
+                            img.onload = () => {
+                                checkImage(img);
+                            };
+                            img.onerror = () => {
+                                imagesLeft--;
+                                if (imagesLeft === 0) resolve();
+                            };
+                        }
+                    });
+
+                    // Fallback timeout of 5 seconds
+                    setTimeout(() => resolve(), 5000);
+                });
+            }
+            """
+            await page.evaluate(update_image_dimensions_js)
+
+            # Wait a bit for any onload events to complete
+            await page.wait_for_timeout(100)
+
+            # Process iframes
+            if kwargs.get("process_iframes", False):
+                page = await self.process_iframes(page)
+            
+            await self.execute_hook('before_retrieve_html', page)
+            # Check if delay_before_return_html is set then wait for that time
+            delay_before_return_html = kwargs.get("delay_before_return_html")
+            if delay_before_return_html:
+                await asyncio.sleep(delay_before_return_html)
+                
+            html = await page.content()
+            await self.execute_hook('before_return_html', page, html)
+            
+            # Check if kwargs has screenshot=True then take screenshot
+            screenshot_data = None
+            if kwargs.get("screenshot"):
+                screenshot_data = await self.take_screenshot(url)            
+
+            if self.verbose:
+                print(f"[LOG] ✅ Crawled {url} successfully!")
+
+            if self.use_cached_html:
+                cache_file_path = os.path.join(
+                    Path.home(), ".crawl4ai", "cache", hashlib.md5(url.encode()).hexdigest()
+                )
+                with open(cache_file_path, "w", encoding="utf-8") as f:
+                    f.write(html)
+                # store response headers and status code in cache
+                with open(cache_file_path + ".meta", "w", encoding="utf-8") as f:
+                    json.dump({
+                        "response_headers": response_headers,
+                        "status_code": status_code
+                    }, f)
+
+            async def get_delayed_content(delay: float = 5.0) -> str:
+                if self.verbose:
+                    print(f"[LOG] Waiting for {delay} seconds before retrieving content for {url}")
+                await asyncio.sleep(delay)
+                return await page.content()
+                
+            response = AsyncCrawlResponse(
+                html=html, 
+                response_headers=response_headers, 
+                status_code=status_code,
+                screenshot=screenshot_data,
+                get_delayed_content=get_delayed_content
+            )
+            return response
+        except Error as e:
+            raise Error(f"Failed to crawl {url}: {str(e)}")
+        finally:
+            if not session_id:
+                await page.close()
+                await context.close()
+
+    async def crawl_many(self, urls: List[str], **kwargs) -> List[AsyncCrawlResponse]:
+        semaphore_count = kwargs.get('semaphore_count', 5)  # Adjust as needed
+        semaphore = asyncio.Semaphore(semaphore_count)
+
+        async def crawl_with_semaphore(url):
+            async with semaphore:
+                return await self.crawl(url, **kwargs)
+
+        tasks = [crawl_with_semaphore(url) for url in urls]
+        results = await asyncio.gather(*tasks, return_exceptions=True)
+        return [result if not isinstance(result, Exception) else str(result) for result in results]
+
+    async def take_screenshot(self, url: str, wait_time=1000) -> str:
+        async with await self.browser.new_context(user_agent=self.user_agent) as context:
+            page = await context.new_page()
+            try:
+                await page.goto(url, wait_until="domcontentloaded", timeout=30000)
+                # Wait for a specified time (default is 1 second)
+                await page.wait_for_timeout(wait_time)
+                screenshot = await page.screenshot(full_page=True)
+                return base64.b64encode(screenshot).decode('utf-8')
+            except Exception as e:
+                error_message = f"Failed to take screenshot: {str(e)}"
+                print(error_message)
+
+                # Generate an error image
+                img = Image.new('RGB', (800, 600), color='black')
+                draw = ImageDraw.Draw(img)
+                font = ImageFont.load_default()
+                draw.text((10, 10), error_message, fill=(255, 255, 255), font=font)
+                
+                buffered = BytesIO()
+                img.save(buffered, format="JPEG")
+                return base64.b64encode(buffered.getvalue()).decode('utf-8')
+            finally:
+                await page.close()
+

crawl4ai/async_crawler_strategy.py

@@ -1,17 +1,35 @@
 import asyncio
-import base64, time
+import base64
+import time
 from abc import ABC, abstractmethod
 from typing import Callable, Dict, Any, List, Optional, Awaitable
 import os
 from playwright.async_api import async_playwright, Page, Browser, Error
 from io import BytesIO
 from PIL import Image, ImageDraw, ImageFont
-from .utils import sanitize_input_encode, calculate_semaphore_count
-import json, uuid
-import hashlib
 from pathlib import Path
 from playwright.async_api import ProxySettings
 from pydantic import BaseModel
+import hashlib
+import json
+import uuid
+from playwright_stealth import StealthConfig, stealth_async
+
+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,
+)
+
 
 class AsyncCrawlResponse(BaseModel):
     html: str
@@ -47,10 +65,14 @@ class AsyncCrawlerStrategy(ABC):
 class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
     def __init__(self, use_cached_html=False, js_code=None, **kwargs):
         self.use_cached_html = use_cached_html
-        self.user_agent = kwargs.get("user_agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36")
+        self.user_agent = kwargs.get(
+            "user_agent",
+            "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
+            "(KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36"
+        )
         self.proxy = kwargs.get("proxy")
         self.headless = kwargs.get("headless", True)
-        self.browser_type = kwargs.get("browser_type", "chromium")  # New parameter
+        self.browser_type = kwargs.get("browser_type", "chromium")
         self.headers = kwargs.get("headers", {})
         self.sessions = {}
         self.session_ttl = 1800 
@@ -58,6 +80,7 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
         self.verbose = kwargs.get("verbose", False)
         self.playwright = None
         self.browser = None
+        self.sleep_on_close = kwargs.get("sleep_on_close", False)
         self.hooks = {
             'on_browser_created': None,
             'on_user_agent_updated': None,
@@ -83,9 +106,14 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
                 "headless": self.headless,
                 "args": [
                     "--disable-gpu",
-                    "--disable-dev-shm-usage",
-                    "--disable-setuid-sandbox",
                     "--no-sandbox",
+                    "--disable-dev-shm-usage",
+                    "--disable-blink-features=AutomationControlled",
+                    "--disable-infobars",
+                    "--window-position=0,0",
+                    "--ignore-certificate-errors",
+                    "--ignore-certificate-errors-spki-list",
+                    # "--headless=new",  # Use the new headless mode
                 ]
             }
             
@@ -94,7 +122,6 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
                 proxy_settings = ProxySettings(server=self.proxy)
                 browser_args["proxy"] = proxy_settings
                 
-                
             # Select the appropriate browser based on the browser_type
             if self.browser_type == "firefox":
                 self.browser = await self.playwright.firefox.launch(**browser_args)
@@ -106,6 +133,8 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
             await self.execute_hook('on_browser_created', self.browser)
 
     async def close(self):
+        if self.sleep_on_close:
+            await asyncio.sleep(500)
         if self.browser:
             await self.browser.close()
             self.browser = None
@@ -147,8 +176,10 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
 
     def _cleanup_expired_sessions(self):
         current_time = time.time()
-        expired_sessions = [sid for sid, (_, _, last_used) in self.sessions.items() 
+        expired_sessions = [
-                            if current_time - last_used > self.session_ttl]
+            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))
             
@@ -256,7 +287,6 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
         # Return the page object
         return page  
     
-    
     async def crawl(self, url: str, **kwargs) -> AsyncCrawlResponse:
         response_headers = {}
         status_code = None
@@ -268,25 +298,70 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
             if not context:
                 context = await self.browser.new_context(
                     user_agent=self.user_agent,
-                    proxy={"server": self.proxy} if self.proxy else None
+                    viewport={"width": 1920, "height": 1080},
+                    proxy={"server": self.proxy} if self.proxy else None,
+                    accept_downloads=True,
+                    java_script_enabled=True
                 )
+                await context.add_cookies([{"name": "cookiesEnabled", "value": "true", "url": url}])
                 await context.set_extra_http_headers(self.headers)
                 page = await context.new_page()
                 self.sessions[session_id] = (context, page, time.time())
         else:
             context = await self.browser.new_context(
                 user_agent=self.user_agent,
+                viewport={"width": 1920, "height": 1080},
                 proxy={"server": self.proxy} if self.proxy else None
             )
             await context.set_extra_http_headers(self.headers)
+            
+            if kwargs.get("override_navigator", False) or kwargs.get("simulate_user", False) or kwargs.get("magic", False):
+                # Inject scripts to override navigator properties
+                await context.add_init_script("""
+                    // Pass the Permissions Test.
+                    const originalQuery = window.navigator.permissions.query;
+                    window.navigator.permissions.query = (parameters) => (
+                        parameters.name === 'notifications' ?
+                            Promise.resolve({ state: Notification.permission }) :
+                            originalQuery(parameters)
+                    );
+                    Object.defineProperty(navigator, 'webdriver', {
+                        get: () => undefined
+                    });
+                    window.navigator.chrome = {
+                        runtime: {},
+                        // Add other properties if necessary
+                    };
+                    Object.defineProperty(navigator, 'plugins', {
+                        get: () => [1, 2, 3, 4, 5],
+                    });
+                    Object.defineProperty(navigator, 'languages', {
+                        get: () => ['en-US', 'en'],
+                    });
+                    Object.defineProperty(document, 'hidden', {
+                        get: () => false
+                    });
+                    Object.defineProperty(document, 'visibilityState', {
+                        get: () => 'visible'
+                    });
+                """)
+            
             page = await context.new_page()
+            # await stealth_async(page) #, stealth_config)
+
+        # Add console message and error logging
+        if kwargs.get("log_console", False):
+            page.on("console", lambda msg: print(f"Console: {msg.text}"))
+            page.on("pageerror", lambda exc: print(f"Page Error: {exc}"))
         
         try:
             if self.verbose:
                 print(f"[LOG] 🕸️ Crawling {url} using AsyncPlaywrightCrawlerStrategy...")
 
             if self.use_cached_html:
-                cache_file_path = os.path.join(Path.home(), ".crawl4ai", "cache", hashlib.md5(url.encode()).hexdigest())
+                cache_file_path = os.path.join(
+                    Path.home(), ".crawl4ai", "cache", hashlib.md5(url.encode()).hexdigest()
+                )
                 if os.path.exists(cache_file_path):
                     html = ""
                     with open(cache_file_path, "r") as f:
@@ -296,12 +371,21 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
                         meta = json.load(f)
                         response_headers = meta.get("response_headers", {})
                         status_code = meta.get("status_code")
-                    response = AsyncCrawlResponse(html=html, response_headers=response_headers, status_code=status_code)
+                    response = AsyncCrawlResponse(
+                        html=html, response_headers=response_headers, status_code=status_code
+                    )
                     return response
 
             if not kwargs.get("js_only", False):
                 await self.execute_hook('before_goto', page)
-                response = await page.goto(url, wait_until="domcontentloaded", timeout=kwargs.get("page_timeout", 60000))
+                
+                response = await page.goto(
+                    url, wait_until="domcontentloaded", timeout=kwargs.get("page_timeout", 60000)
+                )
+                
+                # response = await page.goto("about:blank")
+                # await page.evaluate(f"window.location.href = '{url}'")
+                
                 await self.execute_hook('after_goto', page)
                 
                 # Get status code and headers
@@ -311,37 +395,29 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
                 status_code = 200
                 response_headers = {}
 
-
             await page.wait_for_selector('body')
             await page.evaluate("window.scrollTo(0, document.body.scrollHeight)")
 
             js_code = kwargs.get("js_code", kwargs.get("js", self.js_code))
             if js_code:
                 if isinstance(js_code, str):
-                    r = await page.evaluate(js_code)
+                    await page.evaluate(js_code)
                 elif isinstance(js_code, list):
                     for js in js_code:
                         await page.evaluate(js)
                 
-                # await page.wait_for_timeout(100)
                 await page.wait_for_load_state('networkidle')
-                # Check for on execution even
+                # Check for on execution event
                 await self.execute_hook('on_execution_started', page)
                 
-            # New code to handle the wait_for parameter
+            if kwargs.get("simulate_user", False) or kwargs.get("magic", False):
-            # Example usage:
+                # Simulate user interactions
-            # await crawler.crawl(
+                await page.mouse.move(100, 100)
-            #     url,
+                await page.mouse.down()
-            #     js_code="// some JavaScript code",
+                await page.mouse.up()
-            #     wait_for="""() => {
+                await page.keyboard.press('ArrowDown')
-            #         return document.querySelector('#my-element') !== null;
+
-            #     }"""
+            # Handle the wait_for parameter
-            # )
-            # Example of using a CSS selector:
-            # await crawler.crawl(
-            #     url,
-            #     wait_for="#my-element"
-            # )
             wait_for = kwargs.get("wait_for")
             if wait_for:
                 try:
@@ -349,13 +425,7 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
                 except Exception as e:
                     raise RuntimeError(f"Wait condition failed: {str(e)}")
 
-            # Check if kwargs has screenshot=True then take screenshot
+            # Update image dimensions
-            screenshot_data = None
-            if kwargs.get("screenshot"):
-                screenshot_data = await self.take_screenshot(url)
-            
-            
-            # New code to update image dimensions
             update_image_dimensions_js = """
             () => {
                 return new Promise((resolve) => {
@@ -429,11 +499,18 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
             html = await page.content()
             await self.execute_hook('before_return_html', page, html)
             
+            # Check if kwargs has screenshot=True then take screenshot
+            screenshot_data = None
+            if kwargs.get("screenshot"):
+                screenshot_data = await self.take_screenshot(url)            
+
             if self.verbose:
                 print(f"[LOG] ✅ Crawled {url} successfully!")
 
             if self.use_cached_html:
-                cache_file_path = os.path.join(Path.home(), ".crawl4ai", "cache", hashlib.md5(url.encode()).hexdigest())
+                cache_file_path = os.path.join(
+                    Path.home(), ".crawl4ai", "cache", hashlib.md5(url.encode()).hexdigest()
+                )
                 with open(cache_file_path, "w", encoding="utf-8") as f:
                     f.write(html)
                 # store response headers and status code in cache
@@ -443,7 +520,6 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
                         "status_code": status_code
                     }, f)
 
-            
             async def get_delayed_content(delay: float = 5.0) -> str:
                 if self.verbose:
                     print(f"[LOG] Waiting for {delay} seconds before retrieving content for {url}")
@@ -459,63 +535,14 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
             )
             return response
         except Error as e:
-            raise Error(f"Failed to crawl {url}: {str(e)}")
+            raise Error(f"[ERROR] 🚫 crawl(): Failed to crawl {url}: {str(e)}")
-        finally:
+        # finally:
-            if not session_id:
+        #     if not session_id:
-                await page.close()
+        #         await page.close()
-
+        #         await context.close()
-        # try:
-        #     html = await _crawl()
-        #     return sanitize_input_encode(html)
-        # except Error as e:
-        #     raise Error(f"Failed to crawl {url}: {str(e)}")
-        # except Exception as e:
-        #     raise Exception(f"Failed to crawl {url}: {str(e)}")
-
-    async def execute_js(self, session_id: str, js_code: str, wait_for_js: str = None, wait_for_css: str = None) -> AsyncCrawlResponse:
-        """
-        Execute JavaScript code in a specific session and optionally wait for a condition.
-        
-        :param session_id: The ID of the session to execute the JS code in.
-        :param js_code: The JavaScript code to execute.
-        :param wait_for_js: JavaScript condition to wait for after execution.
-        :param wait_for_css: CSS selector to wait for after execution.
-        :return: AsyncCrawlResponse containing the page's HTML and other information.
-        :raises ValueError: If the session does not exist.
-        """
-        if not session_id:
-            raise ValueError("Session ID must be provided")
-        
-        if session_id not in self.sessions:
-            raise ValueError(f"No active session found for session ID: {session_id}")
-        
-        context, page, last_used = self.sessions[session_id]
-        
-        try:
-            await page.evaluate(js_code)
-            
-            if wait_for_js:
-                await page.wait_for_function(wait_for_js)
-            
-            if wait_for_css:
-                await page.wait_for_selector(wait_for_css)
-            
-            # Get the updated HTML content
-            html = await page.content()
-            
-            # Get response headers and status code (assuming these are available)
-            response_headers = await page.evaluate("() => JSON.stringify(performance.getEntriesByType('resource')[0].responseHeaders)")
-            status_code = await page.evaluate("() => performance.getEntriesByType('resource')[0].responseStatus")
-            
-            # Update the last used time for this session
-            self.sessions[session_id] = (context, page, time.time())
-            
-            return AsyncCrawlResponse(html=html, response_headers=response_headers, status_code=status_code)
-        except Error as e:
-            raise Error(f"Failed to execute JavaScript or wait for condition in session {session_id}: {str(e)}")
 
     async def crawl_many(self, urls: List[str], **kwargs) -> List[AsyncCrawlResponse]:
-        semaphore_count = kwargs.get('semaphore_count', calculate_semaphore_count())
+        semaphore_count = kwargs.get('semaphore_count', 5)  # Adjust as needed
         semaphore = asyncio.Semaphore(semaphore_count)
 
         async def crawl_with_semaphore(url):
@@ -550,3 +577,4 @@ class AsyncPlaywrightCrawlerStrategy(AsyncCrawlerStrategy):
                 return base64.b64encode(buffered.getvalue()).decode('utf-8')
             finally:
                 await page.close()
+

crawl4ai/async_webcrawler.py

@@ -133,8 +133,8 @@ class AsyncWebCrawler:
         except Exception as e:
             if not hasattr(e, "msg"):
                 e.msg = str(e)
-            print(f"[ERROR] 🚫 Failed to crawl {url}, error: {e.msg}")
+            print(f"[ERROR] 🚫 arun(): Failed to crawl {url}, error: {e.msg}")
-            return CrawlResult(url=url, html="", success=False, error_message=e.msg)
+            return CrawlResult(url=url, html="", markdown = f"[ERROR] 🚫 arun(): Failed to crawl {url}, error: {e.msg}", success=False, error_message=e.msg)
 
     async def arun_many(
         self,
@@ -195,6 +195,7 @@ class AsyncWebCrawler:
                 image_description_min_word_threshold=kwargs.get(
                     "image_description_min_word_threshold", IMAGE_DESCRIPTION_MIN_WORD_THRESHOLD
                 ),
+                **kwargs,
             )
             if verbose:
                 print(

crawl4ai/content_scrapping_strategy.py

@@ -33,6 +33,7 @@ class WebScrappingStrategy(ContentScrappingStrategy):
         return await asyncio.to_thread(self._get_content_of_website_optimized, url, html, **kwargs)
 
     def _get_content_of_website_optimized(self, url: str, html: str, word_count_threshold: int = MIN_WORD_THRESHOLD, css_selector: str = None, **kwargs) -> Dict[str, Any]:
+        success = True
         if not html:
             return None
 
@@ -273,10 +274,41 @@ class WebScrappingStrategy(ContentScrappingStrategy):
             if base64_pattern.match(src):
                 # Replace base64 data with empty string
                 img['src'] = base64_pattern.sub('', src)
+                
+        try:
+            str(body)
+        except Exception as e:
+            # Reset body to the original HTML
+            success = False
+            body = BeautifulSoup(html, 'html.parser')
+            
+            # Create a new div with a special ID
+            error_div = body.new_tag('div', id='crawl4ai_error_message')
+            error_div.string = '''
+            Crawl4AI Error: This page is not fully supported.
+            
+            Possible reasons:
+            1. The page may have restrictions that prevent crawling.
+            2. The page might not be fully loaded.
+            
+            Suggestions:
+            - Try calling the crawl function with these parameters:
+            magic=True,
+            - Set headless=False to visualize what's happening on the page.
+            
+            If the issue persists, please check the page's structure and any potential anti-crawling measures.
+            '''
+            
+            # Append the error div to the body
+            body.body.append(error_div)
+            
+            print(f"[LOG] 😧 Error: After processing the crawled HTML and removing irrelevant tags, nothing was left in the page. Check the markdown for further details.")
+
+
         cleaned_html = str(body).replace('\n\n', '\n').replace('  ', ' ')
 
         h = CustomHTML2Text()
-        h.ignore_links = True
+        h.ignore_links = not kwargs.get('include_links_on_markdown', False)
         h.body_width = 0
         try:
             markdown = h.handle(cleaned_html)
@@ -294,7 +326,7 @@ class WebScrappingStrategy(ContentScrappingStrategy):
         return {
             'markdown': markdown,
             'cleaned_html': cleaned_html,
-            'success': True,
+            'success': success,
             'media': media,
             'links': links,
             'metadata': meta

crawl4ai/utils.py

@@ -692,8 +692,8 @@ def get_content_of_website_optimized(url: str, html: str, word_count_threshold:
     for img in imgs:
         src = img.get('src', '')
         if base64_pattern.match(src):
-            # Replace base64 data with empty string
             img['src'] = base64_pattern.sub('', src)
+
     cleaned_html = str(body).replace('\n\n', '\n').replace('  ', ' ')
     cleaned_html = sanitize_html(cleaned_html)
 

docs/examples/quickstart.ipynb

@@ -47,8 +47,7 @@
       },
       "outputs": [],
       "source": [
-        "# !pip install \"crawl4ai @ git+https://github.com/unclecode/crawl4ai.git\"\n",
+        "!pip install crawl4ai\n",
-        "!pip install \"crawl4ai @ git+https://github.com/unclecode/crawl4ai.git@staging\"\n",
         "!pip install nest-asyncio\n",
         "!playwright install"
       ]
@@ -714,7 +713,7 @@
       "provenance": []
     },
     "kernelspec": {
-      "display_name": "Python 3",
+      "display_name": "venv",
       "language": "python",
       "name": "python3"
     },

docs/examples/quickstart_async.py

@@ -379,6 +379,18 @@ async def crawl_custom_browser_type():
         print(result.markdown[:500])
         print("Time taken: ", time.time() - start)
 
+async def crawl_with_user_simultion():
+    async with AsyncWebCrawler(verbose=True, headless=True) as crawler:
+        url = "YOUR-URL-HERE"
+        result = await crawler.arun(
+            url=url,
+            bypass_cache=True,
+            simulate_user = True,# Causes a series of random mouse movements and clicks to simulate user interaction
+            override_navigator = True # Overrides the navigator object to make it look like a real user
+        )
+        
+        print(result.markdown)    
+
 async def speed_comparison():
     # print("\n--- Speed Comparison ---")
     # print("Firecrawl (simulated):")
@@ -455,7 +467,7 @@ async def main():
     # LLM extraction examples
     await extract_structured_data_using_llm()
     await extract_structured_data_using_llm("huggingface/meta-llama/Meta-Llama-3.1-8B-Instruct", os.getenv("HUGGINGFACE_API_KEY"))
-    await extract_structured_data_using_llm("openai/gpt-4", os.getenv("OPENAI_API_KEY"))
+    await extract_structured_data_using_llm("openai/gpt-4o", os.getenv("OPENAI_API_KEY"))
     await extract_structured_data_using_llm("ollama/llama3.2")    
 
     # You always can pass custom headers to the extraction strategy

requirements.txt

@@ -8,3 +8,4 @@ playwright==1.47.0
 python-dotenv==1.0.1
 requests>=2.26.0,<2.32.3
 beautifulsoup4==4.12.3
+playwright_stealth==1.0.6