/usr/share/php/Symfony/Component/HttpKernel/EventListener/AbstractSessionListener.php is in php-symfony-http-kernel 3.4.6+dfsg-1.
This file is owned by root:root, with mode 0o644.
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/*
* 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\Session\Session;
use Symfony\Component\HttpFoundation\Session\SessionInterface;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* Sets the session in the request.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
abstract class AbstractSessionListener implements EventSubscriberInterface
{
public function onKernelRequest(GetResponseEvent $event)
{
if (!$event->isMasterRequest()) {
return;
}
$request = $event->getRequest();
$session = $this->getSession();
if (null === $session || $request->hasSession()) {
return;
}
$request->setSession($session);
}
public function onKernelResponse(FilterResponseEvent $event)
{
if (!$event->isMasterRequest()) {
return;
}
if (!$session = $event->getRequest()->getSession()) {
return;
}
if ($session->isStarted() || ($session instanceof Session && $session->hasBeenStarted())) {
$event->getResponse()
->setPrivate()
->setMaxAge(0)
->headers->addCacheControlDirective('must-revalidate');
}
}
public static function getSubscribedEvents()
{
return array(
KernelEvents::REQUEST => array('onKernelRequest', 128),
// low priority to come after regular response listeners, same as SaveSessionListener
KernelEvents::RESPONSE => array('onKernelResponse', -1000),
);
}
/**
* Gets the session object.
*
* @return SessionInterface|null A SessionInterface instance or null if no session is available
*/
abstract protected function getSession();
}
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