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91 lines
2.5 KiB
91 lines
2.5 KiB
<?php
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/*
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* This file is part of Twig.
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*
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* (c) Fabien Potencier
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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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/**
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* Implements a cache on the filesystem.
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*
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* @author Andrew Tch <andrew@noop.lv>
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*/
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class Twig_Cache_Filesystem implements Twig_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 $directory string The root cache directory
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* @param $options int A set of options
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*/
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public function __construct($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 == ($this->options & self::FORCE_BYTECODE_INVALIDATION)) {
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// Compile cached file into bytecode cache
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if (function_exists('opcache_invalidate')) {
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opcache_invalidate($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('Twig_Cache_Filesystem', 'Twig\Cache\FilesystemCache', false);
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