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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\Bundle\FrameworkBundle\HttpCache;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\HttpCache\Esi;
use Symfony\Component\HttpKernel\HttpCache\HttpCache as BaseHttpCache;
use Symfony\Component\HttpKernel\HttpCache\Store;
use Symfony\Component\HttpKernel\KernelInterface;
/**
* Manages HTTP cache objects in a Container.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class HttpCache extends BaseHttpCache
{
protected $cacheDir;
protected $kernel;
/**
* @param string $cacheDir The cache directory (default used if null)
*/
public function __construct(KernelInterface $kernel, string $cacheDir = null)
{
$this->kernel = $kernel;
$this->cacheDir = $cacheDir;
$isDebug = $kernel->isDebug();
$options = ['debug' => $isDebug];
if ($isDebug) {
$options['stale_if_error'] = 0;
}
parent::__construct($kernel, $this->createStore(), $this->createSurrogate(), array_merge($options, $this->getOptions()));
}
/**
* Forwards the Request to the backend and returns the Response.
*
* @param bool $raw Whether to catch exceptions or not
* @param Response $entry A Response instance (the stale entry if present, null otherwise)
*
* @return Response A Response instance
*/
protected function forward(Request $request, $raw = false, Response $entry = null)
{
$this->getKernel()->boot();
$this->getKernel()->getContainer()->set('cache', $this);
return parent::forward($request, $raw, $entry);
}
/**
* Returns an array of options to customize the Cache configuration.
*
* @return array An array of options
*/
protected function getOptions()
{
return [];
}
protected function createSurrogate()
{
return new Esi();
}
protected function createStore()
{
return new Store($this->cacheDir ?: $this->kernel->getCacheDir().'/http_cache');
}
}