add auth

src/emqx_auth_anonymous.erl

@@ -10,8 +10,14 @@ load() ->
     emqx:hook('client.authenticate', {?MODULE, on_client_authenticate, []}).
 
 on_client_authenticate(#{username := Username, password := Password}, AuthResult) ->
-    io:format("username: ~w, password: ~w~n", [Username, Password]),
-    {ok, AuthResult}.
+    if
+        (Username == undefined) and (Password == undefined) ->
+            {stop, AuthResult#{username => anonymous, auth_result => success, anonymous => false}};
+        (Username == '') and (Password == '') ->
+            {stop, AuthResult#{username => anonymous, auth_result => success, anonymous => false}};
+        true ->
+            {ok, AuthResult}
+    end.
 
 unload() ->
     emqx:unhook('client.authenticate', {?MODULE, on_client_authenticate}).