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<?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\Security\Core\SecurityContextInterface;
use Symfony\Component\Security\Core\Authorization\AccessDecisionManagerInterface;
use Symfony\Component\Security\Http\AccessMapInterface;
use Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\Security\Core\Exception\AuthenticationCredentialsNotFoundException;
use Symfony\Component\Security\Core\Exception\AccessDeniedException;
/**
* AccessListener enforces access control rules.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class AccessListener implements ListenerInterface
{
private $context;
private $accessDecisionManager;
private $map;
private $authManager;
public function __construct(SecurityContextInterface $context, AccessDecisionManagerInterface $accessDecisionManager, AccessMapInterface $map, AuthenticationManagerInterface $authManager)
{
$this->context = $context;
$this->accessDecisionManager = $accessDecisionManager;
$this->map = $map;
$this->authManager = $authManager;
}
/**
* Handles access authorization.
*
* @param GetResponseEvent $event A GetResponseEvent instance
*
* @throws AccessDeniedException
* @throws AuthenticationCredentialsNotFoundException
*/
public function handle(GetResponseEvent $event)
{
if (null === $token = $this->context->getToken()) {
throw new AuthenticationCredentialsNotFoundException('A Token was not found in the SecurityContext.');
}
$request = $event->getRequest();
list($attributes, $channel) = $this->map->getPatterns($request);
if (null === $attributes) {
return;
}
if (!$token->isAuthenticated()) {
$token = $this->authManager->authenticate($token);
$this->context->setToken($token);
}
if (!$this->accessDecisionManager->decide($token, $attributes, $request)) {
throw new AccessDeniedException();
}
}
}