增强 Playwright 反爬虫检测能力

添加:
- 禁用自动化控制特征
- 真实浏览器参数配置
- 反检测脚本注入
- 地理位置等真实特征
- 更强的 User-Agent 模拟

Playwright 后端可以更好地绕过反爬虫检测

app.py

@@ -194,26 +194,59 @@ async def capture_with_playwright(
 ):
     """
     使用 Playwright 捕获网页
+    Playwright 有更强的反爬虫能力
     """
     if not PLAYWRIGHT_AVAILABLE:
-        return {"success": False, "error": "Playwright not installed"}
+        return {"success": False, "error": "Playwright not installed. Run: pip install playwright && playwright install chromium"}
     
     session_id = str(uuid.uuid4())[:8]
     
     try:
         async with async_playwright() as p:
-            browser = await p.chromium.launch(headless=True)
+            # 启动浏览器，添加反检测配置
+            browser = await p.chromium.launch(
+                headless=True,
+                args=[
+                    '--disable-blink-features=AutomationControlled',  # 反自动化检测
+                    '--disable-dev-shm-usage',
+                    '--no-sandbox',
+                    '--disable-setuid-sandbox',
+                    '--disable-web-security',
+                ]
+            )
             
             viewport_settings = viewport or {"width": 1920, "height": 1080}
             
+            # 创建上下文，模拟真实浏览器
             context = await browser.new_context(
                 viewport={
                     "width": viewport_settings.get("width", 1920),
                     "height": viewport_settings.get("height", 1080)
                 },
-                user_agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36"
+                user_agent='Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
+                # 添加更多浏览器特征
+                locale='zh-CN',
+                timezone_id='Asia/Shanghai',
+                geolocation={'latitude': 31.2304, 'longitude': 121.4737},  # 上海坐标
+                permissions=['geolocation'],
             )
             
+            # 注入反检测脚本
+            await context.add_init_script("""
+                Object.defineProperty(navigator, 'webdriver', {
+                    get: () => undefined
+                });
+                Object.defineProperty(navigator, 'plugins', {
+                    get: () => [1, 2, 3, 4, 5]
+                });
+                Object.defineProperty(navigator, 'languages', {
+                    get: () => ['zh-CN', 'zh', 'en', 'en-US']
+                });
+                window.chrome = {
+                    runtime: {}
+                };
+            """)
+            
             page = await context.new_page()
             
             try: