Version 1

[yaffs-website] / vendor / symfony / http-kernel / Fragment / InlineFragmentRenderer.php

diff --git a/vendor/symfony/http-kernel/Fragment/InlineFragmentRenderer.php b/vendor/symfony/http-kernel/Fragment/InlineFragmentRenderer.php
new file mode 100644 (file)
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+++ b/vendor/symfony/http-kernel/Fragment/InlineFragmentRenderer.php
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+<?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\Fragment;
+
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\HttpKernel\HttpKernelInterface;
+use Symfony\Component\HttpKernel\Controller\ControllerReference;
+use Symfony\Component\HttpKernel\KernelEvents;
+use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+
+/**
+ * Implements the inline rendering strategy where the Request is rendered by the current HTTP kernel.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class InlineFragmentRenderer extends RoutableFragmentRenderer
+{
+    private $kernel;
+    private $dispatcher;
+
+    /**
+     * Constructor.
+     *
+     * @param HttpKernelInterface      $kernel     A HttpKernelInterface instance
+     * @param EventDispatcherInterface $dispatcher A EventDispatcherInterface instance
+     */
+    public function __construct(HttpKernelInterface $kernel, EventDispatcherInterface $dispatcher = null)
+    {
+        $this->kernel = $kernel;
+        $this->dispatcher = $dispatcher;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * Additional available options:
+     *
+     *  * alt: an alternative URI to render in case of an error
+     */
+    public function render($uri, Request $request, array $options = array())
+    {
+        $reference = null;
+        if ($uri instanceof ControllerReference) {
+            $reference = $uri;
+
+            // Remove attributes from the generated URI because if not, the Symfony
+            // routing system will use them to populate the Request attributes. We don't
+            // want that as we want to preserve objects (so we manually set Request attributes
+            // below instead)
+            $attributes = $reference->attributes;
+            $reference->attributes = array();
+
+            // The request format and locale might have been overridden by the user
+            foreach (array('_format', '_locale') as $key) {
+                if (isset($attributes[$key])) {
+                    $reference->attributes[$key] = $attributes[$key];
+                }
+            }
+
+            $uri = $this->generateFragmentUri($uri, $request, false, false);
+
+            $reference->attributes = array_merge($attributes, $reference->attributes);
+        }
+
+        $subRequest = $this->createSubRequest($uri, $request);
+
+        // override Request attributes as they can be objects (which are not supported by the generated URI)
+        if (null !== $reference) {
+            $subRequest->attributes->add($reference->attributes);
+        }
+
+        $level = ob_get_level();
+        try {
+            return $this->kernel->handle($subRequest, HttpKernelInterface::SUB_REQUEST, false);
+        } catch (\Exception $e) {
+            // we dispatch the exception event to trigger the logging
+            // the response that comes back is simply ignored
+            if (isset($options['ignore_errors']) && $options['ignore_errors'] && $this->dispatcher) {
+                $event = new GetResponseForExceptionEvent($this->kernel, $request, HttpKernelInterface::SUB_REQUEST, $e);
+
+                $this->dispatcher->dispatch(KernelEvents::EXCEPTION, $event);
+            }
+
+            // let's clean up the output buffers that were created by the sub-request
+            Response::closeOutputBuffers($level, false);
+
+            if (isset($options['alt'])) {
+                $alt = $options['alt'];
+                unset($options['alt']);
+
+                return $this->render($alt, $request, $options);
+            }
+
+            if (!isset($options['ignore_errors']) || !$options['ignore_errors']) {
+                throw $e;
+            }
+
+            return new Response();
+        }
+    }
+
+    protected function createSubRequest($uri, Request $request)
+    {
+        $cookies = $request->cookies->all();
+        $server = $request->server->all();
+
+        // Override the arguments to emulate a sub-request.
+        // Sub-request object will point to localhost as client ip and real client ip
+        // will be included into trusted header for client ip
+        try {
+            if ($trustedHeaderName = Request::getTrustedHeaderName(Request::HEADER_CLIENT_IP)) {
+                $currentXForwardedFor = $request->headers->get($trustedHeaderName, '');
+
+                $server['HTTP_'.$trustedHeaderName] = ($currentXForwardedFor ? $currentXForwardedFor.', ' : '').$request->getClientIp();
+            }
+        } catch (\InvalidArgumentException $e) {
+            // Do nothing
+        }
+
+        $server['REMOTE_ADDR'] = '127.0.0.1';
+        unset($server['HTTP_IF_MODIFIED_SINCE']);
+        unset($server['HTTP_IF_NONE_MATCH']);
+
+        $subRequest = Request::create($uri, 'get', array(), $cookies, array(), $server);
+        if ($request->headers->has('Surrogate-Capability')) {
+            $subRequest->headers->set('Surrogate-Capability', $request->headers->get('Surrogate-Capability'));
+        }
+
+        if ($session = $request->getSession()) {
+            $subRequest->setSession($session);
+        }
+
+        return $subRequest;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return 'inline';
+    }
+}