Definition of Drupal\Core\EventSubscriber\MaintenanceModeSubscriber.
<?php
/**
* @file
* Definition of Drupal\Core\EventSubscriber\MaintenanceModeSubscriber.
*/
namespace Drupal\Core\EventSubscriber;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* Maintenance mode subscriber for controller requests.
*/
class MaintenanceModeSubscriber implements EventSubscriberInterface {
/**
* Response with the maintenance page when the site is offline.
*
* @param Symfony\Component\HttpKernel\Event\GetResponseEvent $event
* The Event to process.
*/
public function onKernelRequestMaintenanceModeCheck(GetResponseEvent $event) {
// Check if the site is offline.
$status = _menu_site_is_offline() ? MENU_SITE_OFFLINE : MENU_SITE_ONLINE;
// Allow other modules to change the site status but not the path because
// that would not change the global variable. hook_url_inbound_alter() can
// be used to change the path. Code later will not use the $read_only_path
// variable.
$read_only_path = !empty($path) ? $path : $event
->getRequest()->attributes
->get('system_path');
drupal_alter('menu_site_status', $status, $read_only_path);
// Only continue if the site is online.
if ($status != MENU_SITE_ONLINE) {
// Deliver the 503 page.
drupal_maintenance_theme();
drupal_set_title(t('Site under maintenance'));
$content = theme('maintenance_page', array(
'content' => filter_xss_admin(t(config('system.maintenance')
->get('message'), array(
'@site' => config('system.site')
->get('name'),
))),
));
$response = new Response('Service unavailable', 503);
$response
->setContent($content);
$event
->setResponse($response);
}
}
/**
* Registers the methods in this class that should be listeners.
*
* @return array
* An array of event listener definitions.
*/
static function getSubscribedEvents() {
$events[KernelEvents::REQUEST][] = array(
'onKernelRequestMaintenanceModeCheck',
40,
);
return $events;
}
}
Name | Description |
---|---|
MaintenanceModeSubscriber | Maintenance mode subscriber for controller requests. |