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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\Authentication\AuthenticationManagerInterface;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Psr\Log\LoggerInterface;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\Security\Core\Authentication\Token\AnonymousToken;
/**
* AnonymousAuthenticationListener automatically adds a Token if none is
* already present.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class AnonymousAuthenticationListener implements ListenerInterface
{
private $tokenStorage;
private $secret;
private $authenticationManager;
private $logger;
public function __construct(TokenStorageInterface $tokenStorage, $secret, LoggerInterface $logger = null, AuthenticationManagerInterface $authenticationManager = null)
{
$this->tokenStorage = $tokenStorage;
$this->secret = $secret;
$this->authenticationManager = $authenticationManager;
$this->logger = $logger;
}
/**
* Handles anonymous authentication.
*
* @param GetResponseEvent $event A GetResponseEvent instance
*/
public function handle(GetResponseEvent $event)
{
if (null !== $this->tokenStorage->getToken()) {
return;
}
try {
$token = new AnonymousToken($this->secret, 'anon.', array());
if (null !== $this->authenticationManager) {
$token = $this->authenticationManager->authenticate($token);
}
$this->tokenStorage->setToken($token);
if (null !== $this->logger) {
$this->logger->info('Populated the TokenStorage with an anonymous Token.');
}
} catch (AuthenticationException $failed) {
if (null !== $this->logger) {
$this->logger->info('Anonymous authentication failed.', array('exception' => $failed));
}
}
}
}
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