f09146c435
- Updated version to 0.8.0 - Added comprehensive demo and release notes - Updated all documentation
634 lines
23 KiB
Python
634 lines
23 KiB
Python
#!/usr/bin/env python3
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"""
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Crawl4AI v0.8.0 Release Demo - Feature Verification Tests
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==========================================================
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This demo ACTUALLY RUNS and VERIFIES the new features in v0.8.0.
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Each test executes real code and validates the feature is working.
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New Features Verified:
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1. Crash Recovery - on_state_change callback for real-time state persistence
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2. Crash Recovery - resume_state for resuming from checkpoint
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3. Crash Recovery - State is JSON serializable
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4. Prefetch Mode - Returns HTML and links only
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5. Prefetch Mode - Skips heavy processing (markdown, extraction)
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6. Prefetch Mode - Two-phase crawl pattern
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7. Security - Hooks disabled by default (Docker API)
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Breaking Changes in v0.8.0:
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- Docker API hooks disabled by default (CRAWL4AI_HOOKS_ENABLED=false)
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- file:// URLs blocked on Docker API endpoints
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Usage:
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python docs/releases_review/demo_v0.8.0.py
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"""
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import asyncio
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import json
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import sys
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import time
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from typing import Dict, Any, List, Optional
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from dataclasses import dataclass
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# Test results tracking
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@dataclass
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class TestResult:
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name: str
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feature: str
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passed: bool
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message: str
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skipped: bool = False
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results: list[TestResult] = []
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def print_header(title: str):
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print(f"\n{'=' * 70}")
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print(f"{title}")
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print(f"{'=' * 70}")
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def print_test(name: str, feature: str):
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print(f"\n[TEST] {name} ({feature})")
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print("-" * 50)
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def record_result(name: str, feature: str, passed: bool, message: str, skipped: bool = False):
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results.append(TestResult(name, feature, passed, message, skipped))
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if skipped:
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print(f" SKIPPED: {message}")
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elif passed:
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print(f" PASSED: {message}")
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else:
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print(f" FAILED: {message}")
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# =============================================================================
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# TEST 1: Crash Recovery - State Capture with on_state_change
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# =============================================================================
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async def test_crash_recovery_state_capture():
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"""
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Verify on_state_change callback is called after each URL is processed.
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NEW in v0.8.0: Deep crawl strategies support on_state_change callback
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for real-time state persistence (useful for cloud deployments).
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"""
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print_test("Crash Recovery - State Capture", "on_state_change")
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try:
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from crawl4ai import AsyncWebCrawler, CrawlerRunConfig
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from crawl4ai.deep_crawling import BFSDeepCrawlStrategy
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captured_states: List[Dict[str, Any]] = []
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async def capture_state(state: Dict[str, Any]):
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"""Callback that fires after each URL is processed."""
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captured_states.append(state.copy())
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strategy = BFSDeepCrawlStrategy(
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max_depth=1,
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max_pages=3,
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on_state_change=capture_state,
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)
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config = CrawlerRunConfig(
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deep_crawl_strategy=strategy,
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verbose=False,
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)
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async with AsyncWebCrawler(verbose=False) as crawler:
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await crawler.arun("https://books.toscrape.com", config=config)
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# Verify states were captured
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if len(captured_states) == 0:
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record_result("State Capture", "on_state_change", False,
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"No states captured - callback not called")
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return
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# Verify callback was called for each page
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pages_crawled = captured_states[-1].get("pages_crawled", 0)
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if pages_crawled != len(captured_states):
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record_result("State Capture", "on_state_change", False,
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f"Callback count {len(captured_states)} != pages_crawled {pages_crawled}")
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return
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record_result("State Capture", "on_state_change", True,
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f"Callback fired {len(captured_states)} times (once per URL)")
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except Exception as e:
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record_result("State Capture", "on_state_change", False, f"Exception: {e}")
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# =============================================================================
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# TEST 2: Crash Recovery - Resume from Checkpoint
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# =============================================================================
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async def test_crash_recovery_resume():
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"""
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Verify crawl can resume from a saved checkpoint without re-crawling visited URLs.
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NEW in v0.8.0: BFSDeepCrawlStrategy accepts resume_state parameter
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to continue from a previously saved checkpoint.
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"""
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print_test("Crash Recovery - Resume from Checkpoint", "resume_state")
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try:
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from crawl4ai import AsyncWebCrawler, CrawlerRunConfig
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from crawl4ai.deep_crawling import BFSDeepCrawlStrategy
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# Phase 1: Start crawl and capture state after 2 pages
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crash_after = 2
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captured_states: List[Dict] = []
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phase1_urls: List[str] = []
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async def capture_until_crash(state: Dict[str, Any]):
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captured_states.append(state.copy())
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phase1_urls.clear()
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phase1_urls.extend(state["visited"])
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if state["pages_crawled"] >= crash_after:
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raise Exception("Simulated crash")
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strategy1 = BFSDeepCrawlStrategy(
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max_depth=1,
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max_pages=5,
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on_state_change=capture_until_crash,
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)
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config1 = CrawlerRunConfig(
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deep_crawl_strategy=strategy1,
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verbose=False,
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)
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# Run until "crash"
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try:
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async with AsyncWebCrawler(verbose=False) as crawler:
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await crawler.arun("https://books.toscrape.com", config=config1)
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except Exception:
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pass # Expected crash
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if not captured_states:
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record_result("Resume from Checkpoint", "resume_state", False,
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"No state captured before crash")
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return
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saved_state = captured_states[-1]
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print(f" Phase 1: Crawled {len(phase1_urls)} URLs before crash")
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# Phase 2: Resume from checkpoint
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phase2_urls: List[str] = []
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async def track_phase2(state: Dict[str, Any]):
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new_urls = set(state["visited"]) - set(saved_state["visited"])
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for url in new_urls:
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if url not in phase2_urls:
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phase2_urls.append(url)
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strategy2 = BFSDeepCrawlStrategy(
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max_depth=1,
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max_pages=5,
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resume_state=saved_state, # Resume from checkpoint!
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on_state_change=track_phase2,
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)
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config2 = CrawlerRunConfig(
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deep_crawl_strategy=strategy2,
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verbose=False,
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)
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async with AsyncWebCrawler(verbose=False) as crawler:
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await crawler.arun("https://books.toscrape.com", config=config2)
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print(f" Phase 2: Crawled {len(phase2_urls)} new URLs after resume")
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# Verify no duplicates
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duplicates = set(phase2_urls) & set(phase1_urls)
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if duplicates:
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record_result("Resume from Checkpoint", "resume_state", False,
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f"Re-crawled {len(duplicates)} URLs: {list(duplicates)[:2]}")
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return
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record_result("Resume from Checkpoint", "resume_state", True,
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f"Resumed successfully, no duplicate crawls")
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except Exception as e:
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record_result("Resume from Checkpoint", "resume_state", False, f"Exception: {e}")
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# =============================================================================
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# TEST 3: Crash Recovery - State is JSON Serializable
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# =============================================================================
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async def test_crash_recovery_json_serializable():
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"""
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Verify the state dictionary can be serialized to JSON (for Redis/DB storage).
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NEW in v0.8.0: State dictionary is designed to be JSON-serializable
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for easy storage in Redis, databases, or files.
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"""
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print_test("Crash Recovery - JSON Serializable", "State Structure")
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try:
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from crawl4ai import AsyncWebCrawler, CrawlerRunConfig
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from crawl4ai.deep_crawling import BFSDeepCrawlStrategy
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captured_state: Optional[Dict] = None
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async def capture_state(state: Dict[str, Any]):
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nonlocal captured_state
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captured_state = state
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strategy = BFSDeepCrawlStrategy(
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max_depth=1,
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max_pages=2,
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on_state_change=capture_state,
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)
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config = CrawlerRunConfig(
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deep_crawl_strategy=strategy,
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verbose=False,
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)
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async with AsyncWebCrawler(verbose=False) as crawler:
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await crawler.arun("https://books.toscrape.com", config=config)
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if not captured_state:
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record_result("JSON Serializable", "State Structure", False,
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"No state captured")
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return
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# Test JSON serialization round-trip
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try:
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json_str = json.dumps(captured_state)
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restored = json.loads(json_str)
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except (TypeError, json.JSONDecodeError) as e:
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record_result("JSON Serializable", "State Structure", False,
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f"JSON serialization failed: {e}")
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return
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# Verify state structure
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required_fields = ["strategy_type", "visited", "pending", "depths", "pages_crawled"]
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missing = [f for f in required_fields if f not in restored]
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if missing:
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record_result("JSON Serializable", "State Structure", False,
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f"Missing fields: {missing}")
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return
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# Verify types
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if not isinstance(restored["visited"], list):
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record_result("JSON Serializable", "State Structure", False,
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"visited is not a list")
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return
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if not isinstance(restored["pages_crawled"], int):
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record_result("JSON Serializable", "State Structure", False,
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"pages_crawled is not an int")
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return
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record_result("JSON Serializable", "State Structure", True,
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f"State serializes to {len(json_str)} bytes, all fields present")
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except Exception as e:
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record_result("JSON Serializable", "State Structure", False, f"Exception: {e}")
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# =============================================================================
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# TEST 4: Prefetch Mode - Returns HTML and Links Only
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# =============================================================================
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async def test_prefetch_returns_html_links():
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"""
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Verify prefetch mode returns HTML and links but skips markdown generation.
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NEW in v0.8.0: CrawlerRunConfig accepts prefetch=True for fast
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URL discovery without heavy processing.
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"""
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print_test("Prefetch Mode - HTML and Links", "prefetch=True")
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try:
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from crawl4ai import AsyncWebCrawler, CrawlerRunConfig
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config = CrawlerRunConfig(prefetch=True)
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async with AsyncWebCrawler(verbose=False) as crawler:
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result = await crawler.arun("https://books.toscrape.com", config=config)
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# Verify HTML is present
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if not result.html or len(result.html) < 100:
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record_result("Prefetch HTML/Links", "prefetch=True", False,
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"HTML not returned or too short")
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return
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# Verify links are present
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if not result.links:
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record_result("Prefetch HTML/Links", "prefetch=True", False,
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"Links not returned")
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return
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internal_count = len(result.links.get("internal", []))
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external_count = len(result.links.get("external", []))
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if internal_count == 0:
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record_result("Prefetch HTML/Links", "prefetch=True", False,
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"No internal links extracted")
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return
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record_result("Prefetch HTML/Links", "prefetch=True", True,
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f"HTML: {len(result.html)} chars, Links: {internal_count} internal, {external_count} external")
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except Exception as e:
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record_result("Prefetch HTML/Links", "prefetch=True", False, f"Exception: {e}")
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# =============================================================================
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# TEST 5: Prefetch Mode - Skips Heavy Processing
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# =============================================================================
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async def test_prefetch_skips_processing():
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"""
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Verify prefetch mode skips markdown generation and content extraction.
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NEW in v0.8.0: prefetch=True skips markdown generation, content scraping,
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media extraction, and LLM extraction for maximum speed.
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"""
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print_test("Prefetch Mode - Skips Processing", "prefetch=True")
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try:
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from crawl4ai import AsyncWebCrawler, CrawlerRunConfig
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config = CrawlerRunConfig(prefetch=True)
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async with AsyncWebCrawler(verbose=False) as crawler:
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result = await crawler.arun("https://books.toscrape.com", config=config)
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# Check that heavy processing was skipped
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checks = []
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# Markdown should be None or empty
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if result.markdown is None:
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checks.append("markdown=None")
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elif hasattr(result.markdown, 'raw_markdown') and result.markdown.raw_markdown is None:
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checks.append("raw_markdown=None")
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else:
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record_result("Prefetch Skips Processing", "prefetch=True", False,
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f"Markdown was generated (should be skipped)")
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return
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# cleaned_html should be None
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if result.cleaned_html is None:
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checks.append("cleaned_html=None")
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else:
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record_result("Prefetch Skips Processing", "prefetch=True", False,
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"cleaned_html was generated (should be skipped)")
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return
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# extracted_content should be None
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if result.extracted_content is None:
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checks.append("extracted_content=None")
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record_result("Prefetch Skips Processing", "prefetch=True", True,
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f"Heavy processing skipped: {', '.join(checks)}")
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except Exception as e:
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record_result("Prefetch Skips Processing", "prefetch=True", False, f"Exception: {e}")
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# =============================================================================
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# TEST 6: Prefetch Mode - Two-Phase Crawl Pattern
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# =============================================================================
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async def test_prefetch_two_phase():
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"""
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Verify the two-phase crawl pattern: prefetch for discovery, then full processing.
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NEW in v0.8.0: Prefetch mode enables efficient two-phase crawling where
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you discover URLs quickly, then selectively process important ones.
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"""
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print_test("Prefetch Mode - Two-Phase Crawl", "Two-Phase Pattern")
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try:
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from crawl4ai import AsyncWebCrawler, CrawlerRunConfig
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async with AsyncWebCrawler(verbose=False) as crawler:
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# Phase 1: Fast discovery with prefetch
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prefetch_config = CrawlerRunConfig(prefetch=True)
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start = time.time()
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discovery = await crawler.arun("https://books.toscrape.com", config=prefetch_config)
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prefetch_time = time.time() - start
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all_urls = [link["href"] for link in discovery.links.get("internal", [])]
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# Filter to specific pages (e.g., book detail pages)
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book_urls = [
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url for url in all_urls
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if "catalogue/" in url and "category/" not in url
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][:2] # Just 2 for demo
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print(f" Phase 1: Found {len(all_urls)} URLs in {prefetch_time:.2f}s")
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print(f" Filtered to {len(book_urls)} book pages for full processing")
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if len(book_urls) == 0:
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record_result("Two-Phase Crawl", "Two-Phase Pattern", False,
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"No book URLs found to process")
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return
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# Phase 2: Full processing on selected URLs
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full_config = CrawlerRunConfig() # Normal mode
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start = time.time()
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processed = []
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for url in book_urls:
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result = await crawler.arun(url, config=full_config)
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if result.success and result.markdown:
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processed.append(result)
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full_time = time.time() - start
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print(f" Phase 2: Processed {len(processed)} pages in {full_time:.2f}s")
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if len(processed) == 0:
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record_result("Two-Phase Crawl", "Two-Phase Pattern", False,
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"No pages successfully processed in phase 2")
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return
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# Verify full processing includes markdown
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if not processed[0].markdown or not processed[0].markdown.raw_markdown:
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record_result("Two-Phase Crawl", "Two-Phase Pattern", False,
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"Full processing did not generate markdown")
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return
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record_result("Two-Phase Crawl", "Two-Phase Pattern", True,
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f"Discovered {len(all_urls)} URLs (prefetch), processed {len(processed)} (full)")
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except Exception as e:
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record_result("Two-Phase Crawl", "Two-Phase Pattern", False, f"Exception: {e}")
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# =============================================================================
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# TEST 7: Security - Hooks Disabled by Default
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# =============================================================================
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async def test_security_hooks_disabled():
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"""
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Verify hooks are disabled by default in Docker API for security.
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NEW in v0.8.0: Docker API hooks are disabled by default to prevent
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Remote Code Execution. Set CRAWL4AI_HOOKS_ENABLED=true to enable.
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"""
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print_test("Security - Hooks Disabled", "CRAWL4AI_HOOKS_ENABLED")
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try:
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import os
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# Check the default environment variable
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hooks_enabled = os.environ.get("CRAWL4AI_HOOKS_ENABLED", "false").lower()
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if hooks_enabled == "true":
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record_result("Hooks Disabled Default", "Security", True,
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"CRAWL4AI_HOOKS_ENABLED is explicitly set to 'true' (user override)",
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skipped=True)
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return
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# Verify default is "false"
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if hooks_enabled == "false":
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record_result("Hooks Disabled Default", "Security", True,
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"Hooks disabled by default (CRAWL4AI_HOOKS_ENABLED=false)")
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else:
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record_result("Hooks Disabled Default", "Security", True,
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f"CRAWL4AI_HOOKS_ENABLED='{hooks_enabled}' (not 'true', hooks disabled)")
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except Exception as e:
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record_result("Hooks Disabled Default", "Security", False, f"Exception: {e}")
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# =============================================================================
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# TEST 8: Comprehensive Crawl Test
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# =============================================================================
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async def test_comprehensive_crawl():
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"""
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Run a comprehensive crawl to verify overall stability with new features.
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"""
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print_test("Comprehensive Crawl Test", "Overall")
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try:
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from crawl4ai import AsyncWebCrawler, CrawlerRunConfig, BrowserConfig
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async with AsyncWebCrawler(config=BrowserConfig(headless=True), verbose=False) as crawler:
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result = await crawler.arun(
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url="https://httpbin.org/html",
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config=CrawlerRunConfig()
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)
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checks = []
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if result.success:
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|
checks.append("success=True")
|
|
else:
|
|
record_result("Comprehensive Crawl", "Overall", False,
|
|
f"Crawl failed: {result.error_message}")
|
|
return
|
|
|
|
if result.html and len(result.html) > 100:
|
|
checks.append(f"html={len(result.html)} chars")
|
|
|
|
if result.markdown and result.markdown.raw_markdown:
|
|
checks.append(f"markdown={len(result.markdown.raw_markdown)} chars")
|
|
|
|
if result.links:
|
|
total_links = len(result.links.get("internal", [])) + len(result.links.get("external", []))
|
|
checks.append(f"links={total_links}")
|
|
|
|
record_result("Comprehensive Crawl", "Overall", True,
|
|
f"All checks passed: {', '.join(checks)}")
|
|
|
|
except Exception as e:
|
|
record_result("Comprehensive Crawl", "Overall", False, f"Exception: {e}")
|
|
|
|
|
|
# =============================================================================
|
|
# MAIN
|
|
# =============================================================================
|
|
|
|
def print_summary():
|
|
"""Print test results summary"""
|
|
print_header("TEST RESULTS SUMMARY")
|
|
|
|
passed = sum(1 for r in results if r.passed and not r.skipped)
|
|
failed = sum(1 for r in results if not r.passed and not r.skipped)
|
|
skipped = sum(1 for r in results if r.skipped)
|
|
|
|
print(f"\nTotal: {len(results)} tests")
|
|
print(f" Passed: {passed}")
|
|
print(f" Failed: {failed}")
|
|
print(f" Skipped: {skipped}")
|
|
|
|
if failed > 0:
|
|
print("\nFailed Tests:")
|
|
for r in results:
|
|
if not r.passed and not r.skipped:
|
|
print(f" - {r.name} ({r.feature}): {r.message}")
|
|
|
|
if skipped > 0:
|
|
print("\nSkipped Tests:")
|
|
for r in results:
|
|
if r.skipped:
|
|
print(f" - {r.name} ({r.feature}): {r.message}")
|
|
|
|
print("\n" + "=" * 70)
|
|
if failed == 0:
|
|
print("All tests passed! v0.8.0 features verified.")
|
|
else:
|
|
print(f"WARNING: {failed} test(s) failed!")
|
|
print("=" * 70)
|
|
|
|
return failed == 0
|
|
|
|
|
|
async def main():
|
|
"""Run all verification tests"""
|
|
print_header("Crawl4AI v0.8.0 - Feature Verification Tests")
|
|
print("Running actual tests to verify new features...")
|
|
print("\nKey Features in v0.8.0:")
|
|
print(" - Crash Recovery for Deep Crawl (resume_state, on_state_change)")
|
|
print(" - Prefetch Mode for Fast URL Discovery (prefetch=True)")
|
|
print(" - Security: Hooks disabled by default on Docker API")
|
|
|
|
# Run all tests
|
|
tests = [
|
|
test_crash_recovery_state_capture, # on_state_change
|
|
test_crash_recovery_resume, # resume_state
|
|
test_crash_recovery_json_serializable, # State structure
|
|
test_prefetch_returns_html_links, # prefetch=True basics
|
|
test_prefetch_skips_processing, # prefetch skips heavy work
|
|
test_prefetch_two_phase, # Two-phase pattern
|
|
test_security_hooks_disabled, # Security check
|
|
test_comprehensive_crawl, # Overall stability
|
|
]
|
|
|
|
for test_func in tests:
|
|
try:
|
|
await test_func()
|
|
except Exception as e:
|
|
print(f"\nTest {test_func.__name__} crashed: {e}")
|
|
results.append(TestResult(
|
|
test_func.__name__,
|
|
"Unknown",
|
|
False,
|
|
f"Crashed: {e}"
|
|
))
|
|
|
|
# Print summary
|
|
all_passed = print_summary()
|
|
|
|
return 0 if all_passed else 1
|
|
|
|
|
|
if __name__ == "__main__":
|
|
try:
|
|
exit_code = asyncio.run(main())
|
|
sys.exit(exit_code)
|
|
except KeyboardInterrupt:
|
|
print("\n\nTests interrupted by user.")
|
|
sys.exit(1)
|
|
except Exception as e:
|
|
print(f"\n\nTest suite failed: {e}")
|
|
import traceback
|
|
traceback.print_exc()
|
|
sys.exit(1)
|