[Bugfix] 修复web terminal突然关闭的问题

coco/httpd.py

@@ -184,9 +184,10 @@ class ProxyNamespace(BaseNamespace):
         connection = Connection.get_connection(request.sid)
         if not connection:
             return
-        for client in connection.clients:
+        clients_copy = list(connection.clients.keys())
+        for client_id in clients_copy:
             try:
-                self.on_logout(client.id)
+                self.on_logout(client_id)
             except Exception as e:
                 logger.warn(e)
         Connection.remove_connection(connection.id)

coco/models.py

@@ -333,15 +333,11 @@ class WSProxy:
     def closed(self):
         return self.sock._closed
 
-    def session_close(self):
-        self.ws.on_logout(self.client_id)
-
     def write(self, data):
         self.proxy.send(data.encode())
 
     def close(self):
         self.proxy.close()
-        self.sock.close()
 
     def __getattr__(self, item):
         return getattr(self.sock, item)