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\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 since Symfony 4.3
*/
class AccessListener extends AbstractListener implements ListenerInterface
{
use LegacyListenerTrait;
private $tokenStorage;
private $accessDecisionManager;
private $map;
private $authManager;
public function __construct(TokenStorageInterface $tokenStorage, AccessDecisionManagerInterface $accessDecisionManager, AccessMapInterface $map, AuthenticationManagerInterface $authManager)
{
$this->tokenStorage = $tokenStorage;
$this->accessDecisionManager = $accessDecisionManager;
$this->map = $map;
$this->authManager = $authManager;
}
/**
* {@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 ? true : null;
}
/**
* Handles access authorization.
*
* @throws AccessDeniedException
* @throws AuthenticationCredentialsNotFoundException
*/
public function authenticate(RequestEvent $event)
{
if (!$event instanceof LazyResponseEvent && null === $token = $this->tokenStorage->getToken()) {
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 && $event instanceof LazyResponseEvent)) {
return;
}
if ($event instanceof LazyResponseEvent && null === $token = $this->tokenStorage->getToken()) {
throw new AuthenticationCredentialsNotFoundException('A Token was not found in the TokenStorage.');
}
if (!$token->isAuthenticated()) {
$token = $this->authManager->authenticate($token);
$this->tokenStorage->setToken($token);
}
if (!$this->accessDecisionManager->decide($token, $attributes, $request, true)) {
$exception = new AccessDeniedException();
$exception->setAttributes($attributes);
$exception->setSubject($request);
throw $exception;
}
}
}

vendor/symfony/symfony/src/Symfony/Component/Security/Http/Firewall/AccessListener.php line 32