Auth\Controller\Auth::check PHP Method

    public function check()
    {
        if ($data = $this->param('auth')) {
            $user = $this->module('auth')->authenticate($data);
            if ($user) {
                $this->module("auth")->setUser($user);
                // log to history
                $this->helper("history")->log(["msg" => "%s logged in", "args" => [$user["name"] ? $user["name"] : $user["user"]], "mod" => "auth"]);
            }
            if ($this->req_is('ajax')) {
                return $user ? json_encode(["success" => true, "user" => $user, "avatar" => md5($user["email"])]) : '{"success":0}';
            } else {
                $this->reroute('/');
            }
        }
        return false;
    }