jbtronics / StuRa-Finanzsoftware

src/EventSubscriber/Fail2BanSubscriber.php

<?php
/*
 * Copyright (C) 2020  Jan Böhmer
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

namespace App\EventSubscriber;

use Psr\Log\LoggerInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\Security\Core\AuthenticationEvents;
use Symfony\Component\Security\Core\Event\AuthenticationFailureEvent;

/**
 * This event subscriber.
 */
class Fail2BanSubscriber implements EventSubscriberInterface
{
    /**
     * @var LoggerInterface
     */
    private $logger;

    /**
     * @var RequestStack
     */
    private $request;

    public function __construct(LoggerInterface $fail2banLogger, RequestStack $request)
    {
        $this->logger = $fail2banLogger;
        $this->request = $request;
    }

    public function logFail2Ban(AuthenticationFailureEvent $event): void

The parameter $event is not used and could be removed.

    {
        $ipAddress = $this->request->getCurrentRequest()
            ->getClientIp();
        $this->logger->error('Authentication failed for IP: '.$ipAddress);
    }

    public static function getSubscribedEvents(): array
    {
        return [
            AuthenticationEvents::AUTHENTICATION_FAILURE => [

The constant Symfony\Component\Security\Core\AuthenticationEvents::AUTHENTICATION_FAILURE has been deprecated: since Symfony 5.4, use {@see Event\LoginFailureEvent} instead

                'logFail2Ban',
            ],
        ];
    }
}