Fix logging of missing sid (Fixes miguelgrinberg/Flask-SocketIO#1472)

miguelgrinberg · Feb 2, 2021 · cdfc1d8 · cdfc1d8
1 parent e8e4ba5
commit cdfc1d8
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/engineio/server.py b/engineio/server.py
@@ -403,8 +403,9 @@ def handle_request(self, environ, start_response):
                         del self.sockets[sid]
         elif method == 'POST':
             if sid is None or sid not in self.sockets:
-                self._log_error_once('Invalid session ' + sid, 'bad-sid')
-                r = self._bad_request('Invalid session ' + sid)
+                self._log_error_once(
+                    'Invalid session ' + (sid or 'None'), 'bad-sid')
+                r = self._bad_request('Invalid session ' + (sid or 'None'))
             else:
                 socket = self._get_socket(sid)
                 try: