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<?php
/**
* Class Minify_Cache_File
* @package Minify
*/
use Psr\Log\LoggerInterface;
class Minify_Cache_File implements Minify_CacheInterface
{
/**
* @var string
*/
private $path;
/**
* @var bool
*/
private $locking;
/**
* @var LoggerInterface
*/
private $logger;
/**
* @param string $path
* @param bool $fileLocking
* @param LoggerInterface $logger
*/
public function __construct($path = '', $fileLocking = false, LoggerInterface $logger = null)
{
if (! $path) {
$path = sys_get_temp_dir();
}
$this->locking = $fileLocking;
$this->path = $path;
if (!$logger) {
$logger = new \Monolog\Logger('minify');
}
$this->logger = $logger;
}
/**
* Write data to cache.
*
* @param string $id cache id (e.g. a filename)
*
* @param string $data
*
* @return bool success
*/
public function store($id, $data)
{
$flag = $this->locking ? LOCK_EX : null;
$file = $this->path . '/' . $id;
if (! @file_put_contents($file, $data, $flag)) {
$this->logger->warning("Minify_Cache_File: Write failed to '$file'");
}
// write control
if ($data !== $this->fetch($id)) {
@unlink($file);
$this->logger->warning("Minify_Cache_File: Post-write read failed for '$file'");
return false;
}
return true;
}
/**
* Get the size of a cache entry
*
* @param string $id cache id (e.g. a filename)
*
* @return int size in bytes
*/
public function getSize($id)
{
return filesize($this->path . '/' . $id);
}
/**
* Does a valid cache entry exist?
*
* @param string $id cache id (e.g. a filename)
*
* @param int $srcMtime mtime of the original source file(s)
*
* @return bool exists
*/
public function isValid($id, $srcMtime)
{
$file = $this->path . '/' . $id;
return (is_file($file) && (filemtime($file) >= $srcMtime));
}
/**
* Send the cached content to output
*
* @param string $id cache id (e.g. a filename)
*/
public function display($id)
{
if (!$this->locking) {
readfile($this->path . '/' . $id);
return;
}
$fp = fopen($this->path . '/' . $id, 'rb');
flock($fp, LOCK_SH);
fpassthru($fp);
flock($fp, LOCK_UN);
fclose($fp);
}
/**
* Fetch the cached content
*
* @param string $id cache id (e.g. a filename)
*
* @return string
*/
public function fetch($id)
{
if (!$this->locking) {
return file_get_contents($this->path . '/' . $id);
}
$fp = fopen($this->path . '/' . $id, 'rb');
if (!$fp) {
return false;
}
flock($fp, LOCK_SH);
$ret = stream_get_contents($fp);
flock($fp, LOCK_UN);
fclose($fp);
return $ret;
}
/**
* Fetch the cache path used
*
* @return string
*/
public function getPath()
{
return $this->path;
}
/**
* Get a usable temp directory
*
* @return string
* @deprecated
*/
public static function tmp()
{
trigger_error(__METHOD__ . ' is deprecated in Minfy 3.0', E_USER_DEPRECATED);
return sys_get_temp_dir();
}
/**
* Send message to the Minify logger
* @param string $msg
* @return null
* @deprecated Use $this->logger
*/
protected function _log($msg)
{
trigger_error(__METHOD__ . ' is deprecated in Minify 3.0.', E_USER_DEPRECATED);
$this->logger->warning($msg);
}
}
|
