--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpKernel\EventListener;
+
+use Symfony\Component\HttpFoundation\Cookie;
+use Symfony\Component\HttpFoundation\Session\SessionInterface;
+use Symfony\Component\HttpKernel\KernelEvents;
+use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
+use Symfony\Component\HttpKernel\Event\GetResponseEvent;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+
+/**
+ * TestSessionListener.
+ *
+ * Saves session in test environment.
+ *
+ * @author Bulat Shakirzyanov <mallluhuct@gmail.com>
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class TestSessionListener implements EventSubscriberInterface
+{
+ public function onKernelRequest(GetResponseEvent $event)
+ {
+ if (!$event->isMasterRequest()) {
+ return;
+ }
+
+ // bootstrap the session
+ $session = $this->getSession();
+ if (!$session) {
+ return;
+ }
+
+ $cookies = $event->getRequest()->cookies;
+
+ if ($cookies->has($session->getName())) {
+ $session->setId($cookies->get($session->getName()));
+ }
+ }
+
+ /**
+ * Checks if session was initialized and saves if current request is master
+ * Runs on 'kernel.response' in test environment.
+ *
+ * @param FilterResponseEvent $event
+ */
+ public function onKernelResponse(FilterResponseEvent $event)
+ {
+ if (!$event->isMasterRequest()) {
+ return;
+ }
+
+ $session = $event->getRequest()->getSession();
+ if ($session && $session->isStarted()) {
+ $session->save();
+ $params = session_get_cookie_params();
+ $event->getResponse()->headers->setCookie(new Cookie($session->getName(), $session->getId(), 0 === $params['lifetime'] ? 0 : time() + $params['lifetime'], $params['path'], $params['domain'], $params['secure'], $params['httponly']));
+ }
+ }
+
+ public static function getSubscribedEvents()
+ {
+ return array(
+ KernelEvents::REQUEST => array('onKernelRequest', 192),
+ KernelEvents::RESPONSE => array('onKernelResponse', -128),
+ );
+ }
+
+ /**
+ * Gets the session object.
+ *
+ * @return SessionInterface|null A SessionInterface instance or null if no session is available
+ */
+ abstract protected function getSession();
+}