CakePHP login（）中的“记住我”会导致无限循环

function login() {
    if ($this->Auth->user()) {
        if (!empty($this->data) && $this->data[\'User\'][\'remember_me\']) {
            $cookie = array();
            $cookie[\'username\'] = $this->data[\'User\'][\'username\'];
            $cookie[\'password\'] = $this->data[\'User\'][\'password\'];
            $this->Cookie->write(\'Auth.User\', $cookie, true, COOKIE_EXPIRE);
            unset($this->data[\'User\'][\'remember_me\']);
        }

        $this->LogDetail->Write(\'activity\',\'has logged IN\');
        $this->redirect($this->Auth->redirect());
    }

    if (empty($this->data)) {
        $cookie = $this->Cookie->read(\'Auth.User\');
        if (!is_null($cookie)) {
            if ($this->Auth->login($cookie)) {
                $this->Session->destroy(\'Message.Auth\'); # clear auth message, just in case we use it.
                $this->LogDetail->Write(\'activity\',\'has been authenticated via cookie and is now logged IN\');

                $this->redirect($this->Auth->redirect());
            } else {
                $this->LogDetail->Write(\'activity\',\'attempted to gain access with an invalid cookie\');
                $this->Cookie->destroy(\'Auth.User\'); # delete invalid cookie

                $this->Session->setFlash(\'Invalid cookie\');
                $this->redirect(\'login\');
            }
        }
    }
}