h_new_local_user = register_hook("new_local_user");
h_new_remote_user = register_hook("new_remote_user");
h_introduce_client = register_hook("introduce_client");
h_new_local_user = register_hook("new_local_user");
h_new_remote_user = register_hook("new_remote_user");
h_introduce_client = register_hook("introduce_client");