diff core/lib/Drupal/Core/EventSubscriber/PathSubscriber.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/lib/Drupal/Core/EventSubscriber/PathSubscriber.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,79 @@
+<?php
+
+namespace Drupal\Core\EventSubscriber;
+
+use Drupal\Core\Path\AliasManagerInterface;
+use Drupal\Core\Path\CurrentPathStack;
+use Symfony\Component\HttpKernel\HttpKernelInterface;
+use Symfony\Component\HttpKernel\KernelEvents;
+use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
+use Symfony\Component\HttpKernel\Event\PostResponseEvent;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+
+/**
+ * Provides a path subscriber that converts path aliases.
+ */
+class PathSubscriber implements EventSubscriberInterface {
+
+  /**
+   * The alias manager that caches alias lookups based on the request.
+   *
+   * @var \Drupal\Core\Path\AliasManagerInterface
+   */
+  protected $aliasManager;
+
+  /**
+   * The current path.
+   *
+   * @var \Drupal\Core\Path\CurrentPathStack
+   */
+  protected $currentPath;
+
+  /**
+   * Constructs a new PathSubscriber instance.
+   *
+   * @param \Drupal\Core\Path\AliasManagerInterface $alias_manager
+   *   The alias manager.
+   * @param \Drupal\Core\Path\CurrentPathStack $current_path
+   *   The current path.
+   */
+  public function __construct(AliasManagerInterface $alias_manager, CurrentPathStack $current_path) {
+    $this->aliasManager = $alias_manager;
+    $this->currentPath = $current_path;
+  }
+
+  /**
+   * Sets the cache key on the alias manager cache decorator.
+   *
+   * KernelEvents::CONTROLLER is used in order to be executed after routing.
+   *
+   * @param \Symfony\Component\HttpKernel\Event\FilterControllerEvent $event
+   *   The Event to process.
+   */
+  public function onKernelController(FilterControllerEvent $event) {
+    // Set the cache key on the alias manager cache decorator.
+    if ($event->getRequestType() == HttpKernelInterface::MASTER_REQUEST) {
+      $this->aliasManager->setCacheKey(rtrim($this->currentPath->getPath($event->getRequest()), '/'));
+    }
+  }
+
+  /**
+   * Ensures system paths for the request get cached.
+   */
+  public function onKernelTerminate(PostResponseEvent $event) {
+    $this->aliasManager->writeCache();
+  }
+
+  /**
+   * Registers the methods in this class that should be listeners.
+   *
+   * @return array
+   *   An array of event listener definitions.
+   */
+  public static function getSubscribedEvents() {
+    $events[KernelEvents::CONTROLLER][] = ['onKernelController', 200];
+    $events[KernelEvents::TERMINATE][] = ['onKernelTerminate', 200];
+    return $events;
+  }
+
+}