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view core/lib/Drupal/Core/PageCache/ResponsePolicyInterface.php @ 19:fa3358dc1485 tip
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author | Chris Cannam |
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date | Wed, 28 Aug 2019 13:14:47 +0100 |
parents | 4c8ae668cc8c |
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<?php namespace Drupal\Core\PageCache; use Symfony\Component\HttpFoundation\Request; use Symfony\Component\HttpFoundation\Response; /** * Defines the interface for response policy implementations. * * The response policy is evaluated in order to determine whether a page should * be stored a in the cache. Calling code should do so unless static::DENY is * returned from the check() method. */ interface ResponsePolicyInterface { /** * Deny storage of a page in the cache. */ const DENY = 'deny'; /** * Determines whether it is save to store a page in the cache. * * @param \Symfony\Component\HttpFoundation\Response $response * The response which is about to be sent to the client. * @param \Symfony\Component\HttpFoundation\Request $request * The request object. * * @return string|null * Either static::DENY or NULL. Calling code may attempt to store a page in * the cache unless static::DENY is returned. Returns NULL if the policy * policy is not specified for the given response. */ public function check(Response $response, Request $request); }