/home/kueuepay/www/vendor/symfony/http-kernel/HttpCache/AbstractSurrogate.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\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;
    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();
    }

    /**
     * {@inheritdoc}
     */
    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())));
    }

    /**
     * {@inheritdoc}
     */
    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);
    }

    /**
     * {@inheritdoc}
     */
    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);
    }

    /**
     * {@inheritdoc}
     */
    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.
     */
    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));
        }
    }
}
Path: home/kueuepay/www/vendor/symfony/http-kernel/HttpCache
User Login
top

In the digital age, privacy concerns have become increasingly paramount, prompting the European Union to enact the General Data Protection Regulation (GDPR) in 2018. Among its many provisions, GDPR sets strict guidelines for the collection and processing of personal data, including the use of cookies on websites. Privacy Policy