FM / HttpCache

/home/techb158/dev.balacoffee.com/vendor/symfony/http-kernel/HttpCache/

/home/techb158/dev.balacoffee.com/vendor/symfony/http-kernel/HttpCache

Name	Size	Mode	Actions
AbstractSurrogate.php	4782	0644	edit dl rm
Esi.php	3363	0644	edit dl rm
HttpCache.php	25912	0644	edit dl rm
ResponseCacheStrategy.php	9134	0644	edit dl rm
ResponseCacheStrategyInterface.php	1001	0644	edit dl rm
Ssi.php	2674	0644	edit dl rm
Store.php	14640	0644	edit dl rm
StoreInterface.php	2160	0644	edit dl rm
SubRequestHandler.php	3921	0644	edit dl rm
SurrogateInterface.php	2250	0644	edit dl rm

Edit: /home/techb158/dev.balacoffee.com/vendor/symfony/http-kernel/HttpCache/Esi.php (3363B)

<?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;

/**
 * Esi implements the ESI capabilities to Request and Response instances.
 *
 * For more information, read the following W3C notes:
 *
 *  * ESI Language Specification 1.0 (http://www.w3.org/TR/esi-lang)
 *
 *  * Edge Architecture Specification (http://www.w3.org/TR/edge-arch)
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class Esi extends AbstractSurrogate
{
    public function getName()
    {
        return 'esi';
    }

/**
     * {@inheritdoc}
     */
    public function addSurrogateControl(Response $response)
    {
        if (str_contains($response->getContent(), '<esi:include')) {
            $response->headers->set('Surrogate-Control', 'content="ESI/1.0"');
        }
    }

/**
     * {@inheritdoc}
     */
    public function renderIncludeTag(string $uri, string $alt = null, bool $ignoreErrors = true, string $comment = '')
    {
        $html = sprintf('<esi:include src="%s"%s%s />',
            $uri,
            $ignoreErrors ? ' onerror="continue"' : '',
            $alt ? sprintf(' alt="%s"', $alt) : ''
        );

if (!empty($comment)) {
            return sprintf("<esi:comment text=\"%s\" />\n%s", $comment, $html);
        }

return $html;
    }

/**
     * {@inheritdoc}
     */
    public function process(Request $request, Response $response)
    {
        $type = $response->headers->get('Content-Type');
        if (empty($type)) {
            $type = 'text/html';
        }

$parts = explode(';', $type);
        if (!\in_array($parts[0], $this->contentTypes)) {
            return $response;
        }

// we don't use a proper XML parser here as we can have ESI tags in a plain text response
        $content = $response->getContent();
        $content = preg_replace('#<esi\:remove>.*?</esi\:remove>#s', '', $content);
        $content = preg_replace('#<esi\:comment[^>]+>#s', '', $content);

$boundary = self::generateBodyEvalBoundary();
        $chunks = preg_split('#<esi\:include\s+(.*?)\s*(?:/|</esi\:include)>#', $content, -1, \PREG_SPLIT_DELIM_CAPTURE);

$i = 1;
        while (isset($chunks[$i])) {
            $options = [];
            preg_match_all('/(src|onerror|alt)="([^"]*?)"/', $chunks[$i], $matches, \PREG_SET_ORDER);
            foreach ($matches as $set) {
                $options[$set[1]] = $set[2];
            }

if (!isset($options['src'])) {
                throw new \RuntimeException('Unable to process an ESI tag without a "src" attribute.');
            }

$chunks[$i] = $boundary.$options['src']."\n".($options['alt'] ?? '')."\n".('continue' === ($options['onerror'] ?? ''))."\n";
            $i += 2;
        }
        $content = $boundary.implode('', $chunks).$boundary;

$response->setContent($content);
        $response->headers->set('X-Body-Eval', 'ESI');

// remove ESI/1.0 from the Surrogate-Control header
        $this->removeFromControl($response);

return $response;
    }
}

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