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<?php |
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/* |
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* This file is part of the FOSHttpCache package. |
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* |
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* (c) FriendsOfSymfony <http://friendsofsymfony.github.com/> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace FOS\HttpCache\SymfonyCache; |
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use Symfony\Component\HttpFoundation\Request; |
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/** |
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* Refresh handler for the symfony built-in HttpCache. |
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* |
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* To use this handler, make sure that your HttpCache makes the fetch method |
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* public. |
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* |
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* @author David Buchmann <[email protected]> |
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* |
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* {@inheritdoc} |
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*/ |
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class RefreshListener extends AccessControlledListener |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public static function getSubscribedEvents() |
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{ |
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return [ |
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Events::PRE_HANDLE => 'handleRefresh', |
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]; |
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} |
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/** |
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* Look at cacheable requests and handle refresh requests. |
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* |
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* When the request comes from a non-authorized client, ignore refresh to |
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* let normal lookup happen. |
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* |
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* @param CacheEvent $event |
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*/ |
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public function handleRefresh(CacheEvent $event) |
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{ |
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$request = $event->getRequest(); |
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// BC - we can drop this check when we only support Symfony 3.1 and newer |
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$cacheable = method_exists(Request::class, 'isMethodCacheable') |
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? $request->isMethodCacheable() |
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: $request->isMethodSafe(false); |
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if (!$cacheable |
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|| !$request->isNoCache() |
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|| !$this->isRequestAllowed($request) |
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) { |
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return; |
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} |
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$event->setResponse( |
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$event->getKernel()->fetch($request) |
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); |
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} |
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} |
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FriendsOfSymfony /
FOSHttpCache
