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- <?php
- namespace Drupal\Core\PageCache\RequestPolicy;
- use Drupal\Core\PageCache\RequestPolicyInterface;
- use Drupal\Core\Session\SessionConfigurationInterface;
- use Symfony\Component\HttpFoundation\Request;
- /**
- * A policy allowing delivery of cached pages when there is no session open.
- *
- * Do not serve cached pages to authenticated users, or to anonymous users when
- * $_SESSION is non-empty. $_SESSION may contain status messages from a form
- * submission, the contents of a shopping cart, or other userspecific content
- * that should not be cached and displayed to other users.
- */
- class NoSessionOpen implements RequestPolicyInterface {
- /**
- * The session configuration.
- *
- * @var \Drupal\Core\Session\SessionConfigurationInterface
- */
- protected $sessionConfiguration;
- /**
- * Constructs a new page cache session policy.
- *
- * @param \Drupal\Core\Session\SessionConfigurationInterface $session_configuration
- * The session configuration.
- */
- public function __construct(SessionConfigurationInterface $session_configuration) {
- $this->sessionConfiguration = $session_configuration;
- }
- /**
- * {@inheritdoc}
- */
- public function check(Request $request) {
- if (!$this->sessionConfiguration->hasSession($request)) {
- return static::ALLOW;
- }
- }
- }
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