Symfony Profiler

<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Security\Http\Firewall;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Event\RequestEvent;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Symfony\Component\Security\Core\Exception\LogoutException;
use Symfony\Component\Security\Csrf\CsrfToken;
use Symfony\Component\Security\Csrf\CsrfTokenManagerInterface;
use Symfony\Component\Security\Http\Event\LogoutEvent;
use Symfony\Component\Security\Http\HttpUtils;
use Symfony\Component\Security\Http\ParameterBagUtils;
use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
/**
* LogoutListener logout users.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @final
*/
class LogoutListener extends AbstractListener
{
private $tokenStorage;
private array $options;
private $httpUtils;
private $csrfTokenManager;
private $eventDispatcher;
/**
* @param array $options An array of options to process a logout attempt
*/
public function __construct(TokenStorageInterface $tokenStorage, HttpUtils $httpUtils, EventDispatcherInterface $eventDispatcher, array $options = [], CsrfTokenManagerInterface $csrfTokenManager = null)
{
$this->tokenStorage = $tokenStorage;
$this->httpUtils = $httpUtils;
$this->options = array_merge([
'csrf_parameter' => '_csrf_token',
'csrf_token_id' => 'logout',
'logout_path' => '/logout',
], $options);
$this->csrfTokenManager = $csrfTokenManager;
$this->eventDispatcher = $eventDispatcher;
}
/**
* {@inheritdoc}
*/
public function supports(Request $request): ?bool
{
return $this->requiresLogout($request);
}
/**
* Performs the logout if requested.
*
* If a CsrfTokenManagerInterface instance is available, it will be used to
* validate the request.
*
* @throws LogoutException if the CSRF token is invalid
* @throws \RuntimeException if the LogoutSuccessHandlerInterface instance does not return a response
*/
public function authenticate(RequestEvent $event)
{
$request = $event->getRequest();
if (null !== $this->csrfTokenManager) {
$csrfToken = ParameterBagUtils::getRequestParameterValue($request, $this->options['csrf_parameter']);
if (!\is_string($csrfToken) || false === $this->csrfTokenManager->isTokenValid(new CsrfToken($this->options['csrf_token_id'], $csrfToken))) {
throw new LogoutException('Invalid CSRF token.');
}
}
$logoutEvent = new LogoutEvent($request, $this->tokenStorage->getToken());
$this->eventDispatcher->dispatch($logoutEvent);
if (!$response = $logoutEvent->getResponse()) {
throw new \RuntimeException('No logout listener set the Response, make sure at least the DefaultLogoutListener is registered.');
}
$this->tokenStorage->setToken(null);
$event->setResponse($response);
}
/**
* Whether this request is asking for logout.
*
* The default implementation only processed requests to a specific path,
* but a subclass could change this to logout requests where
* certain parameters is present.
*/
protected function requiresLogout(Request $request): bool
{
return isset($this->options['logout_path']) && $this->httpUtils->checkRequestPath($request, $this->options['logout_path']);
}
public static function getPriority(): int
{
return -127;
}
}

vendor/symfony/security-http/Firewall/LogoutListener.php line 33