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<?php
/**
* @package Gantry5
* @author RocketTheme http://www.rockettheme.com
* @copyright Copyright (C) 2007 - 2021 RocketTheme, LLC
* @license Dual License: MIT or GNU/GPLv2 and later
*
* http://opensource.org/licenses/MIT
* http://www.gnu.org/licenses/gpl-2.0.html
*
* Gantry Framework code that extends GPL code is considered GNU/GPLv2 and later
*/
namespace Gantry\Component\Twig;
use Twig\Cache\CacheInterface;
/**
* Class TwigCacheFilesystem
* @package Gantry\Component\Twig
*
* Replaces \Twig\FilesystemCache, needed for being able to change PHP versions on fly.
*/
class TwigCacheFilesystem implements CacheInterface
{
const FORCE_BYTECODE_INVALIDATION = 1;
/** @var string */
private $directory;
/** @var int */
private $options;
/**
* @param string $directory The root cache directory
* @param int $options A set of options
*/
public function __construct($directory, $options = 0)
{
$this->directory = rtrim($directory, '\/').'/';
$this->options = $options;
}
/**
* {@inheritdoc}
*/
public function generateKey($name, $className)
{
$hash = hash('sha256', $className . '-' . PHP_VERSION);
return $this->directory . $hash[0] . $hash[1] . '/' . $hash . '.php';
}
/**
* {@inheritdoc}
*/
public function load($key)
{
if (file_exists($key)) {
@include_once $key;
}
}
/**
* {@inheritdoc}
*/
public function write($key, $content)
{
$dir = \dirname($key);
if (!is_dir($dir)) {
if (false === @mkdir($dir, 0777, true)) {
clearstatcache(true, $dir);
if (!is_dir($dir)) {
throw new \RuntimeException(sprintf('Unable to create the cache directory (%s).', $dir));
}
}
} elseif (!is_writable($dir)) {
throw new \RuntimeException(sprintf('Unable to write in the cache directory (%s).', $dir));
}
$tmpFile = tempnam($dir, basename($key));
if (false !== @file_put_contents($tmpFile, $content) && @rename($tmpFile, $key)) {
@chmod($key, 0666 & ~umask());
if (self::FORCE_BYTECODE_INVALIDATION == ($this->options & self::FORCE_BYTECODE_INVALIDATION)) {
// Compile cached file into bytecode cache
if (\function_exists('opcache_invalidate') && filter_var(ini_get('opcache.enable'), FILTER_VALIDATE_BOOLEAN)) {
@opcache_invalidate($key, true);
} elseif (\function_exists('apc_compile_file')) {
apc_compile_file($key);
}
}
return;
}
throw new \RuntimeException(sprintf('Failed to write cache file "%s".', $key));
}
/**
* {@inheritdoc}
*/
public function getTimestamp($key)
{
if (!file_exists($key)) {
return 0;
}
return (int) @filemtime($key);
}
}