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<?php

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* This file is part of Twig.

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* (c) Fabien Potencier

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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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namespace WPML\Core\Twig\Cache;

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/**

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* Implements a cache on the filesystem.

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* @author Andrew Tch <andrew@noop.lv>

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class FilesystemCache implements \WPML\Core\Twig\Cache\CacheInterface

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{

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const FORCE_BYTECODE_INVALIDATION = 1;

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private $directory;

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private $options;

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/**

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* @param string $directory The root cache directory

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* @param int $options A set of options

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public function __construct($directory, $options = 0)

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{

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$this->directory = \rtrim($directory, '\\/') . '/';

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$this->options = $options;

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}

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public function generateKey($name, $className)

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{

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$hash = \hash('sha256', $className);

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return $this->directory . $hash[0] . $hash[1] . '/' . $hash . '.php';

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}

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public function load($key)

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{

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if (\file_exists($key)) {

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@(include_once $key);

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}

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}

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public function write($key, $content)

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{

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$dir = \dirname($key);

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if (!\is_dir($dir)) {

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if (\false === @\mkdir($dir, 0777, \true)) {

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\clearstatcache(\true, $dir);

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if (!\is_dir($dir)) {

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throw new \RuntimeException(\sprintf('Unable to create the cache directory (%s).', $dir));

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}

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}

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} elseif (!\is_writable($dir)) {

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throw new \RuntimeException(\sprintf('Unable to write in the cache directory (%s).', $dir));

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}

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$tmpFile = \tempnam($dir, \basename($key));

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if (\false !== @\file_put_contents($tmpFile, $content) && @\rename($tmpFile, $key)) {

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@\chmod($key, 0666 & ~\umask());

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if (self::FORCE_BYTECODE_INVALIDATION == ($this->options & self::FORCE_BYTECODE_INVALIDATION)) {

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// Compile cached file into bytecode cache

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if (\function_exists('opcache_invalidate') && \filter_var(\ini_get('opcache.enable'), \FILTER_VALIDATE_BOOLEAN)) {

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@\opcache_invalidate($key, \true);

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} elseif (\function_exists('apc_compile_file')) {

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\apc_compile_file($key);

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}

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}

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return;

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}

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throw new \RuntimeException(\sprintf('Failed to write cache file "%s".', $key));

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}

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public function getTimestamp($key)

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{

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if (!\file_exists($key)) {

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return 0;

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}

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return (int) @\filemtime($key);

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}

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}

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\class_alias('WPML\\Core\\Twig\\Cache\\FilesystemCache', 'WPML\\Core\\Twig_Cache_Filesystem');

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