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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\Controller\ControllerReference;
use Symfony\Component\HttpKernel\Event\ExceptionEvent;
use Symfony\Component\HttpKernel\HttpCache\SubRequestHandler;
use Symfony\Component\HttpKernel\HttpKernelInterface;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Contracts\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 HttpKernelInterface $kernel;
private ?EventDispatcherInterface $dispatcher;
public function __construct(HttpKernelInterface $kernel, EventDispatcherInterface $dispatcher = null)
{
$this->kernel = $kernel;
$this->dispatcher = $dispatcher;
}
/**
* Additional available options:
*
* * alt: an alternative URI to render in case of an error
*/
public function render(string|ControllerReference $uri, Request $request, array $options = []): Response
{
$reference = null;
if ($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 = [];
// The request format and locale might have been overridden by the user
foreach (['_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);
}
$level = ob_get_level();
try {
return SubRequestHandler::handle($this->kernel, $subRequest, HttpKernelInterface::SUB_REQUEST, false);
} catch (\Exception $e) {
// we dispatch the exception event to trigger the logging
// the response that comes back is ignored
if (isset($options['ignore_errors']) && $options['ignore_errors'] && $this->dispatcher) {
$event = new ExceptionEvent($this->kernel, $request, HttpKernelInterface::SUB_REQUEST, $e);
$this->dispatcher->dispatch($event, KernelEvents::EXCEPTION);
}
// 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(string $uri, Request $request)
{
$cookies = $request->cookies->all();
$server = $request->server->all();
unset($server['HTTP_IF_MODIFIED_SINCE']);
unset($server['HTTP_IF_NONE_MATCH']);
$subRequest = Request::create($uri, 'get', [], $cookies, [], $server);
if ($request->headers->has('Surrogate-Capability')) {
$subRequest->headers->set('Surrogate-Capability', $request->headers->get('Surrogate-Capability'));
}
static $setSession;
$setSession ??= \Closure::bind(static function ($subRequest, $request) { $subRequest->session = $request->session; }, null, Request::class);
$setSession($subRequest, $request);
if ($request->get('_format')) {
$subRequest->attributes->set('_format', $request->get('_format'));
}
if ($request->getDefaultLocale() !== $request->getLocale()) {
$subRequest->setLocale($request->getLocale());
}
return $subRequest;
}
public function getName(): string
{
return 'inline';
}
}
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