146 lines
4.9 KiB
PHP
146 lines
4.9 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\HttpKernel\Fragment;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpFoundation\Response;
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use Symfony\Component\HttpKernel\Controller\ControllerReference;
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use Symfony\Component\HttpKernel\Event\ExceptionEvent;
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use Symfony\Component\HttpKernel\HttpCache\SubRequestHandler;
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use Symfony\Component\HttpKernel\HttpKernelInterface;
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use Symfony\Component\HttpKernel\KernelEvents;
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use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
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/**
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* Implements the inline rendering strategy where the Request is rendered by the current HTTP kernel.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class InlineFragmentRenderer extends RoutableFragmentRenderer
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{
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private $kernel;
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private $dispatcher;
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public function __construct(HttpKernelInterface $kernel, EventDispatcherInterface $dispatcher = null)
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{
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$this->kernel = $kernel;
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$this->dispatcher = $dispatcher;
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}
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/**
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* {@inheritdoc}
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*
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* Additional available options:
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*
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* * alt: an alternative URI to render in case of an error
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*/
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public function render($uri, Request $request, array $options = [])
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{
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$reference = null;
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if ($uri instanceof ControllerReference) {
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$reference = $uri;
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// Remove attributes from the generated URI because if not, the Symfony
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// routing system will use them to populate the Request attributes. We don't
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// want that as we want to preserve objects (so we manually set Request attributes
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// below instead)
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$attributes = $reference->attributes;
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$reference->attributes = [];
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// The request format and locale might have been overridden by the user
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foreach (['_format', '_locale'] as $key) {
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if (isset($attributes[$key])) {
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$reference->attributes[$key] = $attributes[$key];
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}
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}
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$uri = $this->generateFragmentUri($uri, $request, false, false);
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$reference->attributes = array_merge($attributes, $reference->attributes);
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}
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$subRequest = $this->createSubRequest($uri, $request);
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// override Request attributes as they can be objects (which are not supported by the generated URI)
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if (null !== $reference) {
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$subRequest->attributes->add($reference->attributes);
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}
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$level = ob_get_level();
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try {
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return SubRequestHandler::handle($this->kernel, $subRequest, HttpKernelInterface::SUB_REQUEST, false);
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} catch (\Exception $e) {
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// we dispatch the exception event to trigger the logging
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// the response that comes back is ignored
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if (isset($options['ignore_errors']) && $options['ignore_errors'] && $this->dispatcher) {
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$event = new ExceptionEvent($this->kernel, $request, HttpKernelInterface::SUB_REQUEST, $e);
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$this->dispatcher->dispatch($event, KernelEvents::EXCEPTION);
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}
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// let's clean up the output buffers that were created by the sub-request
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Response::closeOutputBuffers($level, false);
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if (isset($options['alt'])) {
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$alt = $options['alt'];
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unset($options['alt']);
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return $this->render($alt, $request, $options);
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}
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if (!isset($options['ignore_errors']) || !$options['ignore_errors']) {
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throw $e;
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}
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return new Response();
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}
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}
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protected function createSubRequest(string $uri, Request $request)
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{
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$cookies = $request->cookies->all();
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$server = $request->server->all();
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unset($server['HTTP_IF_MODIFIED_SINCE']);
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unset($server['HTTP_IF_NONE_MATCH']);
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$subRequest = Request::create($uri, 'get', [], $cookies, [], $server);
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if ($request->headers->has('Surrogate-Capability')) {
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$subRequest->headers->set('Surrogate-Capability', $request->headers->get('Surrogate-Capability'));
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}
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static $setSession;
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if (null === $setSession) {
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$setSession = \Closure::bind(static function ($subRequest, $request) { $subRequest->session = $request->session; }, null, Request::class);
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}
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$setSession($subRequest, $request);
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if ($request->get('_format')) {
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$subRequest->attributes->set('_format', $request->get('_format'));
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}
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if ($request->getDefaultLocale() !== $request->getLocale()) {
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$subRequest->setLocale($request->getLocale());
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}
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return $subRequest;
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}
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/**
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* {@inheritdoc}
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*/
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public function getName()
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{
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return 'inline';
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}
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}
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