Setup authTimeout with exception for some Urls

Yii 2.0 General Discussions
1

I’m trying to setup the authTimeout to cutoff inactive user after some minutes. The authTimeout can be set by the user, so in config/web.php I have this:

'components' => [
    ....
    'user' => [
        'class' => \app\components\User::class,
        'identityClass' => app\models\Utente::class,
        'loginUrl'=>['user/security/login'],
    ],
    ....
]

and in app\components\User::init() I set the authTimeout based on the user preference.

<?php

namespace app\components;

use Yii;

class User extends \yii\web\User {

    const minAuthTimeout = 120; 

    public function init() {
        parent::init();
        try {

            if (isset(Yii::$app->user) && !Yii::$app->user->isGuest) {

                $duration = null;

                if ($identity = Yii::$app->user->identity) {
                    $duration = $identity->authTimeout;

                    if ($duration > 0) {
                        $this->authTimeout = max($duration, self::minAuthTimeout);
                    }
                }
            }

        } catch (\Exception $ex) {
        }

    }
}

Unfortunately I have a notification route which has been checked every minute and refresh the authTimeout timer. How can I filter these requests?