Connect and display the given server

def __display_server(self, server):
        """
        Connect and display the given server
        """
        # Display the Glances client for the selected server
        logger.debug("Selected server {}".format(server))

        # Connection can take time
        # Display a popup
        self.screen.display_popup(
            'Connect to {}:{}'.format(server['name'], server['port']), duration=1)

        # A password is needed to access to the server's stats
        if server['password'] is None:
            # First of all, check if a password is available in the [passwords] section
            clear_password = self.password.get_password(server['name'])
            if (clear_password is None or self.get_servers_list()
                    [self.screen.active_server]['status'] == 'PROTECTED'):
                # Else, the password should be enter by the user
                # Display a popup to enter password
                clear_password = self.screen.display_popup(
                    'Password needed for {}: '.format(server['name']), is_input=True)
            # Store the password for the selected server
            if clear_password is not None:
                self.set_in_selected('password', self.password.sha256_hash(clear_password))

        # Display the Glance client on the selected server
        logger.info("Connect Glances client to the {} server".format(server['key']))

        # Init the client
        args_server = self.args

        # Overwrite connection setting
        args_server.client = server['ip']
        args_server.port = server['port']
        args_server.username = server['username']
        args_server.password = server['password']
        client = GlancesClient(config=self.config, args=args_server, return_to_browser=True)

        # Test if client and server are in the same major version
        if not client.login():
            self.screen.display_popup(
                "Sorry, cannot connect to '{}'\n"
                "See '{}' for more details".format(server['name'], LOG_FILENAME))

            # Set the ONLINE status for the selected server
            self.set_in_selected('status', 'OFFLINE')
        else:
            # Start the client loop
            # Return connection type: 'glances' or 'snmp'
            connection_type = client.serve_forever()

            try:
                logger.debug("Disconnect Glances client from the {} server".format(server['key']))
            except IndexError:
                # Server did not exist anymore
                pass
            else:
                # Set the ONLINE status for the selected server
                if connection_type == 'snmp':
                    self.set_in_selected('status', 'SNMP')
                else:
                    self.set_in_selected('status', 'ONLINE')

        # Return to the browser (no server selected)
        self.screen.active_server = None