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<?php |
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/* |
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* This file is part of the FOSHttpCache package. |
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* |
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* (c) FriendsOfSymfony <http://friendsofsymfony.github.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 FOS\HttpCache\ProxyClient; |
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use FOS\HttpCache\ProxyClient\Invalidation\PurgeInterface; |
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use FOS\HttpCache\ProxyClient\Invalidation\RefreshInterface; |
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/** |
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* NGINX HTTP cache invalidator. |
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* |
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* @author Simone Fumagalli <[email protected]> |
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*/ |
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class Nginx extends AbstractProxyClient implements PurgeInterface, RefreshInterface |
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{ |
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const HTTP_METHOD_PURGE = 'PURGE'; |
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const HTTP_METHOD_REFRESH = 'GET'; |
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const HTTP_HEADER_REFRESH = 'X-Refresh'; |
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/** |
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* Path location that triggers purging. If false, same location purging is |
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* assumed. |
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* |
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* @var string|false |
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*/ |
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private $purgeLocation; |
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/** |
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* Set path that triggers purge. |
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* |
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* @param string $purgeLocation |
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*/ |
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public function setPurgeLocation($purgeLocation = '') |
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{ |
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$this->purgeLocation = (string) $purgeLocation; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function refresh($url, array $headers = []) |
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{ |
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$headers = array_merge($headers, [self::HTTP_HEADER_REFRESH => '1']); |
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$this->queueRequest(self::HTTP_METHOD_REFRESH, $url, $headers); |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function purge($url, array $headers = []) |
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{ |
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$purgeUrl = $this->buildPurgeUrl($url); |
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$this->queueRequest(self::HTTP_METHOD_PURGE, $purgeUrl, $headers); |
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return $this; |
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} |
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/** |
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* Create the correct URL to purge a resource. |
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* |
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* |
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* @param string $url URL |
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* |
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* @return string Rewritten URL |
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*/ |
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private function buildPurgeUrl($url) |
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{ |
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if (empty($this->purgeLocation)) { |
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return $url; |
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} |
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$urlParts = parse_url($url); |
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if (isset($urlParts['host'])) { |
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$pathStartAt = strpos($url, $urlParts['path']); |
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$purgeUrl = substr($url, 0, $pathStartAt).$this->purgeLocation.substr($url, $pathStartAt); |
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} else { |
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$purgeUrl = $this->purgeLocation.$url; |
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} |
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return $purgeUrl; |
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} |
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} |
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FriendsOfSymfony /
FOSHttpCache
