chore: import upstream snapshot with attribution

examples/integrations/crawlee_example.py

@@ -0,0 +1,72 @@
+"""Crawlee + CloakBrowser: stealth web crawling with PlaywrightCrawler.
+
+Uses a custom BrowserPlugin to swap Crawlee's default Chromium
+for CloakBrowser's patched binary with source-level fingerprint patches.
+
+Requires: pip install cloakbrowser "crawlee[playwright]"
+"""
+
+import asyncio
+
+from cloakbrowser.config import IGNORE_DEFAULT_ARGS, get_default_stealth_args
+from cloakbrowser.download import ensure_binary
+from typing_extensions import override
+
+from crawlee.browsers import (
+    BrowserPool,
+    PlaywrightBrowserController,
+    PlaywrightBrowserPlugin,
+)
+from crawlee.crawlers import PlaywrightCrawler, PlaywrightCrawlingContext
+
+
+class CloakBrowserPlugin(PlaywrightBrowserPlugin):
+    """Browser plugin that uses CloakBrowser's patched Chromium,
+    but otherwise keeps the functionality of PlaywrightBrowserPlugin.
+    """
+
+    @override
+    async def new_browser(self) -> PlaywrightBrowserController:
+        if not self._playwright:
+            raise RuntimeError('Playwright browser plugin is not initialized.')
+
+        binary_path = ensure_binary()
+        stealth_args = get_default_stealth_args()
+
+        # Merge CloakBrowser stealth args with any user-provided launch options.
+        launch_options = dict(self._browser_launch_options)
+        launch_options.pop('executable_path', None)
+        launch_options.pop('chromium_sandbox', None)
+        existing_args = list(launch_options.pop('args', []))
+        launch_options['args'] = [*existing_args, *stealth_args]
+
+        return PlaywrightBrowserController(
+            browser=await self._playwright.chromium.launch(
+                executable_path=binary_path,
+                ignore_default_args=IGNORE_DEFAULT_ARGS,
+                **launch_options,
+            ),
+            max_open_pages_per_browser=1,
+            # CloakBrowser handles fingerprints at the binary level.
+            header_generator=None,
+        )
+
+
+async def main() -> None:
+    crawler = PlaywrightCrawler(
+        max_requests_per_crawl=10,
+        browser_pool=BrowserPool(plugins=[CloakBrowserPlugin()]),
+    )
+
+    @crawler.router.default_handler
+    async def request_handler(context: PlaywrightCrawlingContext) -> None:
+        context.log.info(f'Processing {context.request.url} ...')
+        title = await context.page.title()
+        await context.push_data({'url': context.request.url, 'title': title})
+        await context.enqueue_links()
+
+    await crawler.run(['https://example.com'])
+
+
+if __name__ == '__main__':
+    asyncio.run(main())