1 <?php

     2 

     3 namespace Symfony\Bundle\FrameworkBundle\HttpCache;

     4 

     5 use Symfony\Component\HttpKernel\HttpKernelInterface;

     6 use Symfony\Component\HttpKernel\HttpCache\HttpCache as BaseHttpCache;

     7 use Symfony\Component\HttpKernel\HttpCache\Esi;

     8 use Symfony\Component\HttpKernel\HttpCache\EsiResponseCacheStrategy;

     9 use Symfony\Component\HttpKernel\HttpCache\Store;

    10 use Symfony\Component\HttpFoundation\Request;

    11 use Symfony\Component\HttpFoundation\Response;

    12 

    13 /*

    14  * This file is part of the Symfony package.

    15  *

    16  * (c) Fabien Potencier <fabien@symfony.com>

    17  *

    18  * For the full copyright and license information, please view the LICENSE

    19  * file that was distributed with this source code.

    20  */

    21 

    22 /**

    23  *

    24  * @author Fabien Potencier <fabien@symfony.com>

    25  */

    26 abstract class HttpCache extends BaseHttpCache

    27 {

    28     /**

    29      * Constructor.

    30      *

    31      * @param HttpKernelInterface $kernel An HttpKernelInterface instance

    32      */

    33     public function __construct(HttpKernelInterface $kernel)

    34     {

    35         $store = new Store($kernel->getCacheDir().'/http_cache');

    36         $esi = new Esi();

    37 

    38         parent::__construct($kernel, $store, $esi, array_merge(array('debug' => $kernel->isDebug()), $this->getOptions()));

    39     }

    40 

    41     /**

    42      * Forwards the Request to the backend and returns the Response.

    43      *

    44      * @param Request  $request A Request instance

    45      * @param Boolean  $raw     Whether to catch exceptions or not

    46      * @param Response $entry   A Response instance (the stale entry if present, null otherwise)

    47      *

    48      * @return Response A Response instance

    49      */

    50     protected function forward(Request $request, $raw = false, Response $entry = null)

    51     {

    52         $this->getKernel()->boot();

    53         $this->getKernel()->getContainer()->set('cache', $this);

    54         $this->getKernel()->getContainer()->set('esi', $this->getEsi());

    55 

    56         return parent::forward($request, $raw, $entry);

    57     }

    58 

    59     /**

    60      * Returns an array of options to customize the Cache configuration.

    61      *

    62      * @return array An array of options

    63      */

    64     protected function getOptions()

    65     {

    66         return array();

    67     }

    68 }