Mercurial > hg > isophonics-drupal-site
view core/lib/Drupal/Core/PageCache/ChainResponsePolicy.php @ 17:129ea1e6d783
Update, including to Drupal core 8.6.10
author | Chris Cannam |
---|---|
date | Thu, 28 Feb 2019 13:21:36 +0000 |
parents | 4c8ae668cc8c |
children |
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<?php namespace Drupal\Core\PageCache; use Symfony\Component\HttpFoundation\Request; use Symfony\Component\HttpFoundation\Response; /** * Implements a compound response policy. * * When evaluating the compound policy, all of the contained rules are applied * to the response. The overall result is computed according to the following * rules: * * <ol> * <li>Returns static::DENY if any of the rules evaluated to static::DENY</li> * <li>Otherwise returns NULL</li> * </ol> */ class ChainResponsePolicy implements ChainResponsePolicyInterface { /** * A list of policy rules to apply when this policy is checked. * * @var \Drupal\Core\PageCache\ResponsePolicyInterface[] */ protected $rules = []; /** * {@inheritdoc} */ public function check(Response $response, Request $request) { foreach ($this->rules as $rule) { $result = $rule->check($response, $request); if ($result === static::DENY) { return $result; } elseif (isset($result)) { throw new \UnexpectedValueException('Return value of ResponsePolicyInterface::check() must be one of ResponsePolicyInterface::DENY or NULL'); } } } /** * {@inheritdoc} */ public function addPolicy(ResponsePolicyInterface $policy) { $this->rules[] = $policy; return $this; } }