Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\Core\StackMiddleware;
Chris@0: 
Chris@0: use Symfony\Component\DependencyInjection\ContainerAwareTrait;
Chris@0: use Symfony\Component\HttpFoundation\Request;
Chris@0: use Symfony\Component\HttpKernel\HttpKernelInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Wrap session logic around a HTTP request.
Chris@0:  *
Chris@0:  * Note, the session service is not injected into this class in order to prevent
Chris@0:  * premature initialization of session storage (database). Instead the session
Chris@0:  * service is retrieved from the container only when handling the request.
Chris@0:  */
Chris@0: class Session implements HttpKernelInterface {
Chris@0: 
Chris@0:   use ContainerAwareTrait;
Chris@0: 
Chris@0:   /**
Chris@0:    * The wrapped HTTP kernel.
Chris@0:    *
Chris@0:    * @var \Symfony\Component\HttpKernel\HttpKernelInterface
Chris@0:    */
Chris@0:   protected $httpKernel;
Chris@0: 
Chris@0:   /**
Chris@0:    * The session service name.
Chris@0:    *
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $sessionServiceName;
Chris@0: 
Chris@0:   /**
Chris@0:    * Constructs a Session stack middleware object.
Chris@0:    *
Chris@0:    * @param \Symfony\Component\HttpKernel\HttpKernelInterface $http_kernel
Chris@0:    *   The decorated kernel.
Chris@0:    * @param string $service_name
Chris@0:    *   The name of the session service, defaults to "session".
Chris@0:    */
Chris@0:   public function __construct(HttpKernelInterface $http_kernel, $service_name = 'session') {
Chris@0:     $this->httpKernel = $http_kernel;
Chris@0:     $this->sessionServiceName = $service_name;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function handle(Request $request, $type = self::MASTER_REQUEST, $catch = TRUE) {
Chris@0:     if ($type === self::MASTER_REQUEST && PHP_SAPI !== 'cli') {
Chris@0:       $session = $this->container->get($this->sessionServiceName);
Chris@0:       $session->start();
Chris@0:       $request->setSession($session);
Chris@0:     }
Chris@0: 
Chris@0:     $result = $this->httpKernel->handle($request, $type, $catch);
Chris@0: 
Chris@0:     if ($type === self::MASTER_REQUEST && $request->hasSession()) {
Chris@0:       $request->getSession()->save();
Chris@0:     }
Chris@0: 
Chris@0:     return $result;
Chris@0:   }
Chris@0: 
Chris@0: }