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PathSubscriber.php 2.68 KiB
<?php
/**
* @file
* Definition of Drupal\Core\EventSubscriber\PathSubscriber.
*/
namespace Drupal\Core\EventSubscriber;
use Drupal\Core\CacheDecorator\AliasManagerCacheDecorator;
use Drupal\Core\PathProcessor\InboundPathProcessorInterface;
use Symfony\Component\HttpKernel\HttpKernelInterface;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\HttpKernel\Event\PostResponseEvent;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* Access subscriber for controller requests.
*/
class PathSubscriber extends PathListenerBase implements EventSubscriberInterface {
/**
* The alias manager that caches alias lookups based on the request.
*
* @var \Drupal\Core\CacheDecorator\AliasManagerCacheDecorator
*/
protected $aliasManager;
/**
* A path processor manager for resolving the system path.
*
* @var \Drupal\Core\PathProcessor\InboundPathProcessorInterface
*/
protected $pathProcessor;
public function __construct(AliasManagerCacheDecorator $alias_manager, InboundPathProcessorInterface $path_processor) {
$this->aliasManager = $alias_manager;
$this->pathProcessor = $path_processor;
}
/**
* Converts the request path to a system path.
*
* @param Symfony\Component\HttpKernel\Event\GetResponseEvent $event
* The Event to process.
*/
public function onKernelRequestConvertPath(GetResponseEvent $event) {
$request = $event->getRequest();
$path = trim($request->getPathInfo(), '/');
$path = $this->pathProcessor->processInbound($path, $request);
$request->attributes->set('_system_path', $path);
// Also set an attribute that indicates whether we are using clean URLs.
$clean_urls = TRUE;
$base_url = $request->getBaseUrl();
if (!empty($base_url) && strpos($base_url, $request->getScriptName()) !== FALSE) {
$clean_urls = FALSE;
}
$request->attributes->set('clean_urls', $clean_urls);
// Set the cache key on the alias manager cache decorator.
if ($event->getRequestType() == HttpKernelInterface::MASTER_REQUEST) {
$this->aliasManager->setCacheKey($path);
}
}
/**
* 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.
*/
static function getSubscribedEvents() {
$events[KernelEvents::REQUEST][] = array('onKernelRequestConvertPath', 200);
$events[KernelEvents::TERMINATE][] = array('onKernelTerminate', 200);
return $events;
}
}