Mercurial > hg > isophonics-drupal-site
view core/modules/user/src/EventSubscriber/MaintenanceModeSubscriber.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 | af1871eacc83 |
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<?php namespace Drupal\user\EventSubscriber; use Drupal\Core\Routing\RouteMatch; use Drupal\Core\Session\AccountInterface; use Drupal\Core\Site\MaintenanceModeInterface; use Drupal\Core\Url; use Symfony\Component\EventDispatcher\EventSubscriberInterface; use Symfony\Component\HttpFoundation\RedirectResponse; use Symfony\Component\HttpKernel\Event\GetResponseEvent; use Symfony\Component\HttpKernel\KernelEvents; /** * Maintenance mode subscriber to log out users. */ class MaintenanceModeSubscriber implements EventSubscriberInterface { /** * The maintenance mode. * * @var \Drupal\Core\Site\MaintenanceMode */ protected $maintenanceMode; /** * The current account. * * @var \Drupal\Core\Session\AccountInterface */ protected $account; /** * Constructs a new MaintenanceModeSubscriber. * * @param \Drupal\Core\Site\MaintenanceModeInterface $maintenance_mode * The maintenance mode. * @param \Drupal\Core\Session\AccountInterface $account * The current user. */ public function __construct(MaintenanceModeInterface $maintenance_mode, AccountInterface $account) { $this->maintenanceMode = $maintenance_mode; $this->account = $account; } /** * Logout users if site is in maintenance mode. * * @param \Symfony\Component\HttpKernel\Event\GetResponseEvent $event * The event to process. */ public function onKernelRequestMaintenance(GetResponseEvent $event) { $request = $event->getRequest(); $route_match = RouteMatch::createFromRequest($request); if ($this->maintenanceMode->applies($route_match)) { // If the site is offline, log out unprivileged users. if ($this->account->isAuthenticated() && !$this->maintenanceMode->exempt($this->account)) { user_logout(); // Redirect to homepage. $event->setResponse( new RedirectResponse(Url::fromRoute('<front>')->toString()) ); } } } /** * {@inheritdoc} */ public static function getSubscribedEvents() { $events[KernelEvents::REQUEST][] = ['onKernelRequestMaintenance', 31]; return $events; } }