148 lines
		
	
	
		
			5.3 KiB
		
	
	
	
		
			PHP
		
	
	
			
		
		
	
	
			148 lines
		
	
	
		
			5.3 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 HttpKernelInterface $kernel;
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    private ?EventDispatcherInterface $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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     * 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(string|ControllerReference $uri, Request $request, array $options = []): Response
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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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    /**
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     * @return Request
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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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        $setSession ??= \Closure::bind(static function ($subRequest, $request) { $subRequest->session = $request->session; }, null, Request::class);
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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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        if ($request->attributes->has('_stateless')) {
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            $subRequest->attributes->set('_stateless', $request->attributes->get('_stateless'));
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        }
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        if ($request->attributes->has('_check_controller_is_allowed')) {
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            $subRequest->attributes->set('_check_controller_is_allowed', $request->attributes->get('_check_controller_is_allowed'));
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        }
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        return $subRequest;
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    }
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    public function getName(): string
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    {
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        return 'inline';
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    }
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}
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