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\HttpKernel\Event\RequestEvent;
use Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface;
use Symfony\Component\Security\Core\Authentication\Token\NullToken;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Symfony\Component\Security\Core\Authorization\AccessDecisionManagerInterface;
use Symfony\Component\Security\Core\Authorization\Voter\AuthenticatedVoter;
use Symfony\Component\Security\Core\Exception\AccessDeniedException;
use Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException;
use Symfony\Component\Security\Http\AccessMapInterface;
use Symfony\Component\Security\Http\Event\LazyResponseEvent;
/**
* AccessListener enforces access control rules.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @final
*/
class AccessListener extends AbstractListener
{
private $tokenStorage;
private $accessDecisionManager;
private $map;
private $authManager;
private $exceptionOnNoToken;
public function __construct(TokenStorageInterface $tokenStorage, AccessDecisionManagerInterface $accessDecisionManager, AccessMapInterface $map, AuthenticationManagerInterface $authManager, bool $exceptionOnNoToken = true)
{
$this->tokenStorage = $tokenStorage;
$this->accessDecisionManager = $accessDecisionManager;
$this->map = $map;
$this->authManager = $authManager;
$this->exceptionOnNoToken = $exceptionOnNoToken;
}
/**
* {@inheritdoc}
*/
public function supports(Request $request): ?bool
{
[$attributes] = $this->map->getPatterns($request);
$request->attributes->set('_access_control_attributes', $attributes);
return $attributes && ([AuthenticatedVoter::IS_AUTHENTICATED_ANONYMOUSLY] !== $attributes && [AuthenticatedVoter::PUBLIC_ACCESS] !== $attributes) ? true : null;
}
/**
* Handles access authorization.
*
* @throws AccessDeniedException
* @throws AuthenticationCredentialsNotFoundException when the token storage has no authentication token and $exceptionOnNoToken is set to true
*/
public function authenticate(RequestEvent $event)
{
if (!$event instanceof LazyResponseEvent && null === ($token = $this->tokenStorage->getToken()) && $this->exceptionOnNoToken) {
throw new AuthenticationCredentialsNotFoundException('A Token was not found in the TokenStorage.');
}
$request = $event->getRequest();
$attributes = $request->attributes->get('_access_control_attributes');
$request->attributes->remove('_access_control_attributes');
if (
!$attributes
|| (
([AuthenticatedVoter::IS_AUTHENTICATED_ANONYMOUSLY] === $attributes || [AuthenticatedVoter::PUBLIC_ACCESS] === $attributes)
&& $event instanceof LazyResponseEvent
)
) {
return;
}
if ($event instanceof LazyResponseEvent) {
$token = $this->tokenStorage->getToken();
}
if (null === $token) {
if ($this->exceptionOnNoToken) {
throw new AuthenticationCredentialsNotFoundException('A Token was not found in the TokenStorage.');
}
$token = new NullToken();
}
if (!$token->isAuthenticated()) {
$token = $this->authManager->authenticate($token);
$this->tokenStorage->setToken($token);
}
if (!$this->accessDecisionManager->decide($token, $attributes, $request, true)) {
throw $this->createAccessDeniedException($request, $attributes);
}
}
private function createAccessDeniedException(Request $request, array $attributes)
{
$exception = new AccessDeniedException();
$exception->setAttributes($attributes);
$exception->setSubject($request);
return $exception;
}
public static function getPriority(): int
{
return -255;
}
}

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