Update Python client (fix bugs)

controller/AppController.py

@@ -31,9 +31,10 @@ class AppController:
             if message_id == Protocol.PARSE_SIGNOK:
                 self.window_controller.switch_connected_mode()
                 self.show_message("Connection done", False)
+                self.on_filelist()
             elif message_id == Protocol.PARSE_SIGNERROR:
                 self.show_message("Error during SIGN_IN / SIGN_UP", True)
-            self.on_filelist()
+                self.connection.close()
         except Exception as ex:
             print(ex)
             traceback.print_exc()

net/UnicastConnection.py

@@ -107,5 +107,11 @@ class UnicastConnection:
 
     def close(self):
         self.sock.close()
+        self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        self.is_connected = False
+        self.is_tls = False
+        self.ssock = None
+        self.ca_path = None
+        self.ssl_info = None