refactor: better error handler (#24422)

Signed-off-by: -LAN- <laipz8200@outlook.com>

api/extensions/ext_blueprints.py

@@ -29,7 +29,6 @@ def init_app(app: DifyApp):
         methods=["GET", "PUT", "POST", "DELETE", "OPTIONS", "PATCH"],
         expose_headers=["X-Version", "X-Env"],
     )
-
     app.register_blueprint(web_bp)
 
     CORS(
@@ -40,10 +39,13 @@ def init_app(app: DifyApp):
         methods=["GET", "PUT", "POST", "DELETE", "OPTIONS", "PATCH"],
         expose_headers=["X-Version", "X-Env"],
     )
-
     app.register_blueprint(console_app_bp)
 
-    CORS(files_bp, allow_headers=["Content-Type"], methods=["GET", "PUT", "POST", "DELETE", "OPTIONS", "PATCH"])
+    CORS(
+        files_bp,
+        allow_headers=["Content-Type"],
+        methods=["GET", "PUT", "POST", "DELETE", "OPTIONS", "PATCH"],
+    )
     app.register_blueprint(files_bp)
 
     app.register_blueprint(inner_api_bp)

api/extensions/ext_login.py

@@ -20,6 +20,10 @@ login_manager = flask_login.LoginManager()
 @login_manager.request_loader
 def load_user_from_request(request_from_flask_login):
     """Load user based on the request."""
+    # Skip authentication for documentation endpoints
+    if request.path.endswith("/docs") or request.path.endswith("/swagger.json"):
+        return None
+
     auth_header = request.headers.get("Authorization", "")
     auth_token: str | None = None
     if auth_header: