Chris@0:
Chris@0: *
Returns static::DENY if any of the rules evaluated to static::DENY
Chris@0: * Otherwise returns NULL
Chris@0: *
Chris@0: */
Chris@0: class ChainResponsePolicy implements ChainResponsePolicyInterface {
Chris@0:
Chris@0: /**
Chris@0: * A list of policy rules to apply when this policy is checked.
Chris@0: *
Chris@0: * @var \Drupal\Core\PageCache\ResponsePolicyInterface[]
Chris@0: */
Chris@0: protected $rules = [];
Chris@0:
Chris@0: /**
Chris@0: * {@inheritdoc}
Chris@0: */
Chris@0: public function check(Response $response, Request $request) {
Chris@0: foreach ($this->rules as $rule) {
Chris@0: $result = $rule->check($response, $request);
Chris@0: if ($result === static::DENY) {
Chris@0: return $result;
Chris@0: }
Chris@0: elseif (isset($result)) {
Chris@0: throw new \UnexpectedValueException('Return value of ResponsePolicyInterface::check() must be one of ResponsePolicyInterface::DENY or NULL');
Chris@0: }
Chris@0: }
Chris@0: }
Chris@0:
Chris@0: /**
Chris@0: * {@inheritdoc}
Chris@0: */
Chris@0: public function addPolicy(ResponsePolicyInterface $policy) {
Chris@0: $this->rules[] = $policy;
Chris@0: return $this;
Chris@0: }
Chris@0:
Chris@0: }