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Directory >> /home/whitjouh/public_html/core/vendor/symfony/http-kernel/HttpCache/

File / Folder	Size	Action
.	-
AbstractSurrogate.php	4.642KB	edt ren
Esi.php	3.237KB	edt ren
HttpCache.php	26.846KB	edt ren
ResponseCacheStrategy.php	9.057KB	edt ren
ResponseCacheStrategyIn...	1.03KB	edt ren
Ssi.php	2.528KB	edt ren
Store.php	14.361KB	edt ren
StoreInterface.php	2.176KB	edt ren
SubRequestHandler.php	3.829KB	edt ren
SurrogateInterface.php	2.107KB	edt ren

<?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\HttpCache;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\HttpKernelInterface;

/**
 * Abstract class implementing Surrogate capabilities to Request and Response instances.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Robin Chalas <robin.chalas@gmail.com>
 */
abstract class AbstractSurrogate implements SurrogateInterface
{
    protected $contentTypes;

/**
     * @deprecated since Symfony 6.3
     */
    protected $phpEscapeMap = [
        ['<?', '<%', '<s', '<S'],
        ['<?php echo "<?"; ?>', '<?php echo "<%"; ?>', '<?php echo "<s"; ?>', '<?php echo "<S"; ?>'],
    ];

/**
     * @param array $contentTypes An array of content-type that should be parsed for Surrogate information
     *                            (default: text/html, text/xml, application/xhtml+xml, and application/xml)
     */
    public function __construct(array $contentTypes = ['text/html', 'text/xml', 'application/xhtml+xml', 'application/xml'])
    {
        $this->contentTypes = $contentTypes;
    }

/**
     * Returns a new cache strategy instance.
     */
    public function createCacheStrategy(): ResponseCacheStrategyInterface
    {
        return new ResponseCacheStrategy();
    }

public function hasSurrogateCapability(Request $request): bool
    {
        if (null === $value = $request->headers->get('Surrogate-Capability')) {
            return false;
        }

return str_contains($value, sprintf('%s/1.0', strtoupper($this->getName())));
    }

/**
     * @return void
     */
    public function addSurrogateCapability(Request $request)
    {
        $current = $request->headers->get('Surrogate-Capability');
        $new = sprintf('symfony="%s/1.0"', strtoupper($this->getName()));

$request->headers->set('Surrogate-Capability', $current ? $current.', '.$new : $new);
    }

public function needsParsing(Response $response): bool
    {
        if (!$control = $response->headers->get('Surrogate-Control')) {
            return false;
        }

$pattern = sprintf('#content="[^"]*%s/1.0[^"]*"#', strtoupper($this->getName()));

return (bool) preg_match($pattern, $control);
    }

public function handle(HttpCache $cache, string $uri, string $alt, bool $ignoreErrors): string
    {
        $subRequest = Request::create($uri, Request::METHOD_GET, [], $cache->getRequest()->cookies->all(), [], $cache->getRequest()->server->all());

try {
            $response = $cache->handle($subRequest, HttpKernelInterface::SUB_REQUEST, true);

if (!$response->isSuccessful() && Response::HTTP_NOT_MODIFIED !== $response->getStatusCode()) {
                throw new \RuntimeException(sprintf('Error when rendering "%s" (Status code is %d).', $subRequest->getUri(), $response->getStatusCode()));
            }

return $response->getContent();
        } catch (\Exception $e) {
            if ($alt) {
                return $this->handle($cache, $alt, '', $ignoreErrors);
            }

if (!$ignoreErrors) {
                throw $e;
            }
        }

return '';
    }

/**
     * Remove the Surrogate from the Surrogate-Control header.
     *
     * @return void
     */
    protected function removeFromControl(Response $response)
    {
        if (!$response->headers->has('Surrogate-Control')) {
            return;
        }

$value = $response->headers->get('Surrogate-Control');
        $upperName = strtoupper($this->getName());

if (sprintf('content="%s/1.0"', $upperName) == $value) {
            $response->headers->remove('Surrogate-Control');
        } elseif (preg_match(sprintf('#,\s*content="%s/1.0"#', $upperName), $value)) {
            $response->headers->set('Surrogate-Control', preg_replace(sprintf('#,\s*content="%s/1.0"#', $upperName), '', $value));
        } elseif (preg_match(sprintf('#content="%s/1.0",\s*#', $upperName), $value)) {
            $response->headers->set('Surrogate-Control', preg_replace(sprintf('#content="%s/1.0",\s*#', $upperName), '', $value));
        }
    }

protected static function generateBodyEvalBoundary(): string
    {
        static $cookie;
        $cookie = hash('xxh128', $cookie ?? $cookie = random_bytes(16), true);
        $boundary = base64_encode($cookie);

\assert(HttpCache::BODY_EVAL_BOUNDARY_LENGTH === \strlen($boundary));

return $boundary;
    }
}