AUTH

INTRO

The n2o_auth module provides EMQ auth hook that perform client's autisubscribe to client topic.

CALLBACK

check(#mqtt_client{},binary(),term()) -> ok | ignore.

The default implementation performs client topic autosubscribe at server side.

check(#mqtt_client{client_id = ClientId, username = PageModule, client_pid = ClientPid, ws_initial_headers = _Headers}, Password, Listeners) -> ClientId = ensure_id(Client), case ClientId of <<"emqttd_", _/binary>> -> emqttd_client:subscribe(ClientPid, [{n2o:to_binary(["actions/1/",PageModule,"/",ClientId]), 2}]), ignore; _ -> ignore end.

This module may refer to: n2o, n2o_proto, n2o_vnode.