102 lines
3.5 KiB
PHP
102 lines
3.5 KiB
PHP
<?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\HttpCache\SurrogateInterface;
|
|
use Symfony\Component\HttpKernel\UriSigner;
|
|
|
|
/**
|
|
* Implements Surrogate rendering strategy.
|
|
*
|
|
* @author Fabien Potencier <fabien@symfony.com>
|
|
*/
|
|
abstract class AbstractSurrogateFragmentRenderer extends RoutableFragmentRenderer
|
|
{
|
|
private $surrogate;
|
|
private $inlineStrategy;
|
|
private $signer;
|
|
|
|
/**
|
|
* The "fallback" strategy when surrogate is not available should always be an
|
|
* instance of InlineFragmentRenderer.
|
|
*
|
|
* @param FragmentRendererInterface $inlineStrategy The inline strategy to use when the surrogate is not supported
|
|
*/
|
|
public function __construct(SurrogateInterface $surrogate = null, FragmentRendererInterface $inlineStrategy, UriSigner $signer = null)
|
|
{
|
|
$this->surrogate = $surrogate;
|
|
$this->inlineStrategy = $inlineStrategy;
|
|
$this->signer = $signer;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*
|
|
* Note that if the current Request has no surrogate capability, this method
|
|
* falls back to use the inline rendering strategy.
|
|
*
|
|
* Additional available options:
|
|
*
|
|
* * alt: an alternative URI to render in case of an error
|
|
* * comment: a comment to add when returning the surrogate tag
|
|
*
|
|
* Note, that not all surrogate strategies support all options. For now
|
|
* 'alt' and 'comment' are only supported by ESI.
|
|
*
|
|
* @see Symfony\Component\HttpKernel\HttpCache\SurrogateInterface
|
|
*/
|
|
public function render($uri, Request $request, array $options = [])
|
|
{
|
|
if (!$this->surrogate || !$this->surrogate->hasSurrogateCapability($request)) {
|
|
if ($uri instanceof ControllerReference && $this->containsNonScalars($uri->attributes)) {
|
|
throw new \InvalidArgumentException('Passing non-scalar values as part of URI attributes to the ESI and SSI rendering strategies is not supported. Use a different rendering strategy or pass scalar values.');
|
|
}
|
|
|
|
return $this->inlineStrategy->render($uri, $request, $options);
|
|
}
|
|
|
|
if ($uri instanceof ControllerReference) {
|
|
$uri = $this->generateSignedFragmentUri($uri, $request);
|
|
}
|
|
|
|
$alt = $options['alt'] ?? null;
|
|
if ($alt instanceof ControllerReference) {
|
|
$alt = $this->generateSignedFragmentUri($alt, $request);
|
|
}
|
|
|
|
$tag = $this->surrogate->renderIncludeTag($uri, $alt, $options['ignore_errors'] ?? false, $options['comment'] ?? '');
|
|
|
|
return new Response($tag);
|
|
}
|
|
|
|
private function generateSignedFragmentUri(ControllerReference $uri, Request $request): string
|
|
{
|
|
return (new FragmentUriGenerator($this->fragmentPath, $this->signer))->generate($uri, $request);
|
|
}
|
|
|
|
private function containsNonScalars(array $values): bool
|
|
{
|
|
foreach ($values as $value) {
|
|
if (\is_array($value)) {
|
|
return $this->containsNonScalars($value);
|
|
} elseif (!is_scalar($value) && null !== $value) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|