avoid 204 responses for non-telegram webhooks

middlewares/webhook_guard.py

@@ -2,9 +2,20 @@ from aiohttp import web
 
 
 def telegram_webhook_guard_middleware(webhook_path: str, secret_token: str):
+    webhook_path = (webhook_path or "").strip()
+    if not webhook_path.startswith("/"):
+        webhook_path = "/" + webhook_path
+
+    if webhook_path != "/" and webhook_path.endswith("/"):
+        webhook_path = webhook_path.rstrip("/")
+
     @web.middleware
     async def middleware(request: web.Request, handler):
-        if request.path != webhook_path:
+        request_path = request.rel_url.path
+        if request_path != "/" and request_path.endswith("/"):
+            request_path = request_path.rstrip("/")
+
+        if request_path != webhook_path:
             return await handler(request)
 
         if request.method != "POST":