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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\HttpKernel\HttpCache;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
interface SurrogateInterface
{
/**
* Returns surrogate name.
*
* @return string
*/
public function getName();
/**
* Returns a new cache strategy instance.
*
* @return ResponseCacheStrategyInterface A ResponseCacheStrategyInterface instance
*/
public function createCacheStrategy();
/**
* Checks that at least one surrogate has Surrogate capability.
*
* @param Request $request A Request instance
*
* @return bool true if one surrogate has Surrogate capability, false otherwise
*/
public function hasSurrogateCapability(Request $request);
/**
* Adds Surrogate-capability to the given Request.
*
* @param Request $request A Request instance
*/
public function addSurrogateCapability(Request $request);
/**
* Adds HTTP headers to specify that the Response needs to be parsed for Surrogate.
*
* This method only adds an Surrogate HTTP header if the Response has some Surrogate tags.
*
* @param Response $response A Response instance
*/
public function addSurrogateControl(Response $response);
/**
* Checks that the Response needs to be parsed for Surrogate tags.
*
* @param Response $response A Response instance
*
* @return bool true if the Response needs to be parsed, false otherwise
*/
public function needsParsing(Response $response);
/**
* Renders a Surrogate tag.
*
* @param string $uri A URI
* @param string $alt An alternate URI
* @param bool $ignoreErrors Whether to ignore errors or not
* @param string $comment A comment to add as an esi:include tag
*
* @return string
*/
public function renderIncludeTag($uri, $alt = null, $ignoreErrors = true, $comment = '');
/**
* Replaces a Response Surrogate tags with the included resource content.
*
* @param Request $request A Request instance
* @param Response $response A Response instance
*
* @return Response
*/
public function process(Request $request, Response $response);
/**
* Handles a Surrogate from the cache.
*
* @param HttpCache $cache An HttpCache instance
* @param string $uri The main URI
* @param string $alt An alternative URI
* @param bool $ignoreErrors Whether to ignore errors or not
*
* @return string
*
* @throws \RuntimeException
* @throws \Exception
*/
public function handle(HttpCache $cache, $uri, $alt, $ignoreErrors);
}