ServerRequest::checkPermission PHP Method

    public function checkPermission()
    {
        global $g_user;
        if (!isset($this->rules[$this->callable_name])) {
            return false;
        }
        $permission = $this->rules[$this->callable_name];
        if (!empty($permission) && !$g_user->hasPermission($permission)) {
            return false;
        }
        return true;
    }