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class SpecialAttributesRouteSubscriber in Zircon Profile 8

Same name and namespace in other branches
  1. 8.0 core/lib/Drupal/Core/EventSubscriber/SpecialAttributesRouteSubscriber.php \Drupal\Core\EventSubscriber\SpecialAttributesRouteSubscriber

Provides a route subscriber which checks for invalid pattern variables.

Hierarchy

Expanded class hierarchy of SpecialAttributesRouteSubscriber

1 file declares its use of SpecialAttributesRouteSubscriber
SpecialAttributesRouteSubscriberTest.php in core/tests/Drupal/Tests/Core/EventSubscriber/SpecialAttributesRouteSubscriberTest.php
Contains \Drupal\Tests\Core\EventSubscriber\SpecialAttributesRouteSubscriberTest.
1 string reference to 'SpecialAttributesRouteSubscriber'
core.services.yml in core/core.services.yml
core/core.services.yml
1 service uses SpecialAttributesRouteSubscriber
route_special_attributes_subscriber in core/core.services.yml
Drupal\Core\EventSubscriber\SpecialAttributesRouteSubscriber

File

core/lib/Drupal/Core/EventSubscriber/SpecialAttributesRouteSubscriber.php, line 18
Contains \Drupal\Core\EventSubscriber\SpecialAttributesRouteSubscriber.

Namespace

Drupal\Core\EventSubscriber
View source
class SpecialAttributesRouteSubscriber extends RouteSubscriberBase {

  /**
   * {@inheritdoc}
   */
  protected function alterRoutes(RouteCollection $collection) {
    $special_variables = array(
      'system_path',
      '_legacy',
      '_raw_variables',
      RouteObjectInterface::ROUTE_OBJECT,
      RouteObjectInterface::ROUTE_NAME,
      '_content',
      '_controller',
      '_form',
    );
    foreach ($collection
      ->all() as $name => $route) {
      if ($not_allowed_variables = array_intersect($route
        ->compile()
        ->getVariables(), $special_variables)) {
        $reserved = implode(', ', $not_allowed_variables);
        trigger_error(sprintf('Route %s uses reserved variable names: %s', $name, $reserved), E_USER_WARNING);
      }
    }
  }

  /**
   * Delegates the route altering to self::alterRoutes().
   *
   * @param \Drupal\Core\Routing\RouteBuildEvent $event
   *   The route build event.
   */
  public function onAlterRoutes(RouteBuildEvent $event) {
    $collection = $event
      ->getRouteCollection();
    $this
      ->alterRoutes($collection);
  }

}

Members

Namesort descending Modifiers Type Description Overrides
RouteSubscriberBase::getSubscribedEvents public static function Returns an array of event names this subscriber wants to listen to. Overrides EventSubscriberInterface::getSubscribedEvents 5
SpecialAttributesRouteSubscriber::alterRoutes protected function Alters existing routes for a specific collection. Overrides RouteSubscriberBase::alterRoutes
SpecialAttributesRouteSubscriber::onAlterRoutes public function Delegates the route altering to self::alterRoutes(). Overrides RouteSubscriberBase::onAlterRoutes