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<?php |
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/** |
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* Class FileCache |
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* |
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* @filesource FileCache.php |
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* @created 25.05.2017 |
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* @package chillerlan\SimpleCache |
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* @author Smiley <[email protected]> |
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* @copyright 2017 Smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\SimpleCache; |
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use chillerlan\Settings\SettingsContainerInterface; |
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use FilesystemIterator, RecursiveDirectoryIterator, RecursiveIteratorIterator, stdClass; |
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class FileCache extends CacheDriverAbstract{ |
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/** |
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* @var string |
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*/ |
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protected $cachedir; |
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/** |
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* FileCache constructor. |
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* |
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* @param \chillerlan\Settings\SettingsContainerInterface|null $options |
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* |
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* @throws \chillerlan\SimpleCache\CacheException |
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*/ |
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public function __construct(SettingsContainerInterface $options = null){ |
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parent::__construct($options); |
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$this->cachedir = rtrim($this->options->cacheFilestorage, '/\\').DIRECTORY_SEPARATOR; |
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if(!is_dir($this->cachedir)){ |
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$msg = 'invalid cachedir "'.$this->cachedir.'"'; |
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$this->logger->error($msg); |
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throw new CacheException($msg); |
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} |
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if(!is_writable($this->cachedir)){ |
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$msg = 'cachedir is read-only. permissions?'; |
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$this->logger->error($msg); |
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throw new CacheException($msg); |
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} |
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} |
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/** @inheritdoc */ |
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public function get($key, $default = null){ |
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$this->checkKey($key); |
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$filename = $this->getFilepath($key); |
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if(is_file($filename)){ |
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$content = file_get_contents($filename); |
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if(!empty($content)){ |
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$data = unserialize($content); |
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if($data->ttl === null || $data->ttl > time()){ |
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return $data->content; |
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} |
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unlink($filename); |
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} |
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} |
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return $default; |
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} |
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/** @inheritdoc */ |
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public function set($key, $value, $ttl = null):bool{ |
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$this->checkKey($key); |
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$ttl = $this->getTTL($ttl); |
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$file = $this->getFilepath($key); |
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$dir = dirname($file); |
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if(!is_dir($dir)){ |
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mkdir($dir, 0755, true); |
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} |
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$data = new stdClass; |
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$data->ttl = null; |
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$data->content = $value; |
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if($ttl !== null){ |
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$data->ttl = time() + $ttl; |
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} |
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file_put_contents($file, serialize($data)); |
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if(is_file($file)){ |
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return true; |
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} |
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return false; // @codeCoverageIgnore |
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} |
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/** @inheritdoc */ |
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public function delete($key):bool{ |
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$this->checkKey($key); |
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$filename = $this->getFilepath($key); |
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if(is_file($filename)){ |
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return unlink($filename); |
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} |
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return false; |
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} |
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/** @inheritdoc */ |
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public function clear():bool{ |
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$iterator = new RecursiveDirectoryIterator($this->cachedir, FilesystemIterator::CURRENT_AS_PATHNAME|FilesystemIterator::SKIP_DOTS); |
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$return = []; |
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foreach(new RecursiveIteratorIterator($iterator) as $path){ |
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// skip files the parent directory - cache files are only under /a/ab/[hash] |
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if(strpos(str_replace($this->cachedir, '', $path), DIRECTORY_SEPARATOR) === false){ |
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continue; |
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} |
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$return[] = unlink($path); |
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} |
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return $this->checkReturn($return); // @codeCoverageIgnore |
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} |
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/** |
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138
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* @param string $key |
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* |
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140
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* @return string |
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*/ |
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protected function getFilepath(string $key):string{ |
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$h = hash('sha256', $key); |
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return $this->cachedir.$h[0].DIRECTORY_SEPARATOR.$h[0].$h[1].DIRECTORY_SEPARATOR.$h; |
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} |
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} |
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chillerlan /
php-cache
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