Actualización

vendor/symfony/security-bundle/DependencyInjection/Compiler/AddSessionDomainConstraintPass.php

@@ -0,0 +1,39 @@
+<?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\Bundle\SecurityBundle\DependencyInjection\Compiler;
+
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+
+/**
+ * Uses the session domain to restrict allowed redirection targets.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class AddSessionDomainConstraintPass implements CompilerPassInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function process(ContainerBuilder $container)
+    {
+        if (!$container->hasParameter('session.storage.options') || !$container->has('security.http_utils')) {
+            return;
+        }
+
+        $sessionOptions = $container->getParameter('session.storage.options');
+        $domainRegexp = empty($sessionOptions['cookie_domain']) ? '%s' : sprintf('(?:%%s|(?:.+\.)?%s)', preg_quote(trim($sessionOptions['cookie_domain'], '.')));
+        $domainRegexp = (empty($sessionOptions['cookie_secure']) ? 'https?://' : 'https://').$domainRegexp;
+
+        $container->findDefinition('security.http_utils')->addArgument(sprintf('{^%s$}i', $domainRegexp));
+    }
+}