优化响应速度

main.py

@@ -13,6 +13,8 @@ FINGERPRINT_HEADER = "x-device-fingerprint"
 playwright_instance = None
 browser = None
 
+# [新增] 全局内存缓存池，存储 JS 脚本
+RESOURCE_CACHE = {}
 
 @asynccontextmanager
 async def lifespan(app: FastAPI):
@@ -43,6 +45,44 @@ app = FastAPI(
 async def get_fingerprint():
     page = await browser.new_page()
     try:
+        # [新增] 拦截无用资源，极大提升加载速度
+        async def route_intercept(route):
+            request = route.request
+            url = request.url
+            resource_type = request.resource_type
+
+            # 1. 丢弃无用资源
+            if resource_type in ["image", "stylesheet", "media", "font", "other"]:
+                await route.abort()
+                return
+
+            # 2. 强缓存 JS 文件
+            if resource_type == "script":
+                if url in RESOURCE_CACHE:
+                    await route.fulfill(
+                        status=200,
+                        headers=RESOURCE_CACHE[url]["headers"],
+                        body=RESOURCE_CACHE[url]["body"]
+                    )
+                    return
+                
+                # 缓存未命中，去真实抓取
+                try:
+                    response = await route.fetch()
+                    body = await response.body()
+                    RESOURCE_CACHE[url] = {
+                        "headers": response.headers,
+                        "body": body
+                    }
+                    await route.fulfill(response=response, body=body)
+                    return
+                except Exception:
+                    pass  # 抓取失败，降级给底层处理
+
+            await route.continue_()
+        
+        await page.route("**/*", route_intercept)
+
         fingerprint_future = asyncio.Future()
 
         async def handle_request(request):
@@ -52,7 +92,10 @@ async def get_fingerprint():
                     fingerprint_future.set_result(headers[FINGERPRINT_HEADER])
 
         page.on("request", handle_request)
-        await page.goto(TARGET_PAGE, wait_until="networkidle")
+        
+        # [修改] 并发执行 goto 和 wait_for。拿到结果就立刻返回，不再死等 goto 结束
+        goto_task = asyncio.create_task(page.goto(TARGET_PAGE, wait_until="domcontentloaded"))
+        
         fingerprint = await asyncio.wait_for(fingerprint_future, timeout=15)
         return fingerprint
     except asyncio.TimeoutError: