6a728cbe5b
- Add playwright-stealth integration with enable_stealth parameter in BrowserConfig - Merge undetected browser strategy into main async_crawler_strategy.py using adapter pattern - Add browser adapters (BrowserAdapter, PlaywrightAdapter, UndetectedAdapter) for flexible browser switching - Update install.py to install both playwright and patchright browsers automatically - Add comprehensive documentation for anti-bot features (stealth mode + undetected browser) - Create examples demonstrating stealth mode usage and comparison tests - Update pyproject.toml and requirements.txt with patchright>=1.49.0 and other dependencies - Remove duplicate/unused dependencies (alphashape, cssselect, pyperclip, shapely, selenium) - Add dependency checker tool in tests/check_dependencies.py Breaking changes: None - all existing functionality preserved 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
118 lines
3.8 KiB
Python
118 lines
3.8 KiB
Python
"""
|
|
Simple Undetected Browser Demo
|
|
Demonstrates the basic usage of undetected browser mode
|
|
"""
|
|
|
|
import asyncio
|
|
from crawl4ai import (
|
|
AsyncWebCrawler,
|
|
BrowserConfig,
|
|
CrawlerRunConfig,
|
|
UndetectedAdapter
|
|
)
|
|
from crawl4ai.async_crawler_strategy import AsyncPlaywrightCrawlerStrategy
|
|
|
|
async def crawl_with_regular_browser(url: str):
|
|
"""Crawl with regular browser"""
|
|
print("\n[Regular Browser Mode]")
|
|
browser_config = BrowserConfig(
|
|
headless=False,
|
|
verbose=True,
|
|
)
|
|
|
|
async with AsyncWebCrawler(config=browser_config) as crawler:
|
|
result = await crawler.arun(
|
|
url=url,
|
|
config=CrawlerRunConfig(
|
|
delay_before_return_html=2.0
|
|
)
|
|
)
|
|
|
|
print(f"Success: {result.success}")
|
|
print(f"Status: {result.status_code}")
|
|
print(f"Content length: {len(result.markdown.raw_markdown)}")
|
|
|
|
# Check for bot detection keywords
|
|
content = result.markdown.raw_markdown.lower()
|
|
if any(word in content for word in ["cloudflare", "checking your browser", "please wait"]):
|
|
print("⚠️ Bot detection triggered!")
|
|
else:
|
|
print("✅ Page loaded successfully")
|
|
|
|
return result
|
|
|
|
async def crawl_with_undetected_browser(url: str):
|
|
"""Crawl with undetected browser"""
|
|
print("\n[Undetected Browser Mode]")
|
|
browser_config = BrowserConfig(
|
|
headless=False,
|
|
verbose=True,
|
|
)
|
|
|
|
# Create undetected adapter and strategy
|
|
undetected_adapter = UndetectedAdapter()
|
|
crawler_strategy = AsyncPlaywrightCrawlerStrategy(
|
|
browser_config=browser_config,
|
|
browser_adapter=undetected_adapter
|
|
)
|
|
|
|
async with AsyncWebCrawler(
|
|
crawler_strategy=crawler_strategy,
|
|
config=browser_config
|
|
) as crawler:
|
|
result = await crawler.arun(
|
|
url=url,
|
|
config=CrawlerRunConfig(
|
|
delay_before_return_html=2.0
|
|
)
|
|
)
|
|
|
|
print(f"Success: {result.success}")
|
|
print(f"Status: {result.status_code}")
|
|
print(f"Content length: {len(result.markdown.raw_markdown)}")
|
|
|
|
# Check for bot detection keywords
|
|
content = result.markdown.raw_markdown.lower()
|
|
if any(word in content for word in ["cloudflare", "checking your browser", "please wait"]):
|
|
print("⚠️ Bot detection triggered!")
|
|
else:
|
|
print("✅ Page loaded successfully")
|
|
|
|
return result
|
|
|
|
async def main():
|
|
"""Demo comparing regular vs undetected modes"""
|
|
print("🤖 Crawl4AI Undetected Browser Demo")
|
|
print("="*50)
|
|
|
|
# Test URLs - you can change these
|
|
test_urls = [
|
|
"https://www.example.com", # Simple site
|
|
"https://httpbin.org/headers", # Shows request headers
|
|
]
|
|
|
|
for url in test_urls:
|
|
print(f"\n📍 Testing URL: {url}")
|
|
|
|
# Test with regular browser
|
|
regular_result = await crawl_with_regular_browser(url)
|
|
|
|
# Small delay
|
|
await asyncio.sleep(2)
|
|
|
|
# Test with undetected browser
|
|
undetected_result = await crawl_with_undetected_browser(url)
|
|
|
|
# Compare results
|
|
print(f"\n📊 Comparison for {url}:")
|
|
print(f"Regular browser content: {len(regular_result.markdown.raw_markdown)} chars")
|
|
print(f"Undetected browser content: {len(undetected_result.markdown.raw_markdown)} chars")
|
|
|
|
if url == "https://httpbin.org/headers":
|
|
# Show headers for comparison
|
|
print("\nHeaders seen by server:")
|
|
print("Regular:", regular_result.markdown.raw_markdown[:500])
|
|
print("\nUndetected:", undetected_result.markdown.raw_markdown[:500])
|
|
|
|
if __name__ == "__main__":
|
|
asyncio.run(main()) |