<?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\HttpKernel\EventListener;

use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
use Symfony\Component\HttpKernel\HttpCache\HttpCache;
use Symfony\Component\HttpKernel\HttpCache\SurrogateInterface;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

/**
 * SurrogateListener adds a Surrogate-Control HTTP header when the Response needs to be parsed for Surrogates.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class SurrogateListener implements EventSubscriberInterface
{
    private $surrogate;

    public function __construct(SurrogateInterface $surrogate = null)
    {
        $this->surrogate = $surrogate;
    }

    /**
     * Filters the Response.
     */
    public function onKernelResponse(FilterResponseEvent $event)
    {
        if (!$event->isMasterRequest()) {
            return;
        }

        $kernel = $event->getKernel();
        $surrogate = $this->surrogate;
        if ($kernel instanceof HttpCache) {
            $surrogate = $kernel->getSurrogate();
            if (null !== $this->surrogate && $this->surrogate->getName() !== $surrogate->getName()) {
                $surrogate = $this->surrogate;
            }
        }

        if (null === $surrogate) {
            return;
        }

        $surrogate->addSurrogateControl($event->getResponse());
    }

    public static function getSubscribedEvents()
    {
        return array(
            KernelEvents::RESPONSE => 'onKernelResponse',
        );
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NjgzMzc2NTA2MzkwMDE4NyA4NzMxODE3NTI3MzMzOTA3IDM5ODgwOTI1NTE5NDE5NzI=