AlkantarClanX12
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<?php
namespace W3TCL\Minify;
/**
* Class Minify_Cache_File
* @package Minify
*/
class Minify_Cache_File {
private $_path = null;
private $_exclude = null;
private $_locking = null;
private $_flushTimeLimit = null;
private $_flush_path = null;
public function __construct($path = '', $exclude = array(), $locking = false, $flushTimeLimit = 0, $flush_path = null) {
if (! $path) {
$path = self::tmp();
}
$this->_path = $path;
$this->_exclude = $exclude;
$this->_locking = $locking;
$this->_flushTimeLimit = $flushTimeLimit;
$this->_flush_path = (is_null($flush_path) ? $path : $flush_path);
if (!file_exists($this->_path .'/index.html')) {
if (!is_dir($this->_path))
\W3TC\Util_File::mkdir_from_safe($this->_path, W3TC_CACHE_DIR);
@file_put_contents($this->_path .'/index.html', '');
}
}
/**
* Write data to cache.
*
* @param string $id cache id (e.g. a filename)
*
* @param string $data
*
* @return bool success
*/
public function store($id, $data)
{
$path = $this->_path . '/' . $id;
$flag = $this->_locking ? LOCK_EX : null;
if (is_file($path)) {
@unlink($path);
}
if (!@file_put_contents($path, $data['content'], $flag)) {
// retry with make dir
\W3TC\Util_File::mkdir_from_safe(dirname($path), W3TC_CACHE_DIR);
if (!@file_put_contents($path, $data['content'], $flag))
return false;
}
if ( file_exists( $path . '_old' ) ) {
@unlink($path . '_old');
}
if ( file_exists( $path . '_meta_old' ) ) {
@unlink($path . '_meta_old');
}
$content = $data['content'];
unset($data['content']);
if (count($data) > 0)
@file_put_contents($path . '_meta', serialize($data), $flag);
// write control
$read = $this->fetch($id);
if (!isset($read['content']) || $content != $read['content']) {
@unlink($path);
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)
{
$path = $this->_path . '/' . $id;
$fp = @fopen($path, 'rb');
if ($fp) {
if ($this->_locking)
@flock($fp, LOCK_SH);
@fpassthru($fp);
if ($this->_locking)
@flock($fp, LOCK_UN);
@fclose($fp);
return true;
}
return false;
}
/**
* Fetch the cached content
*
* @param string $id cache id (e.g. a filename)
*
* @return string|false
*/
public function fetch($id)
{
$path = $this->_path . '/' . $id;
$data = @file_get_contents($path . '_meta');
if ( ! empty( $data ) ) {
$data = @unserialize($data);
if (!is_array($data))
$data = array();
} else {
$data = array();
}
if (is_readable($path)) {
if ($this->_locking) {
$fp = @fopen($path, 'rb');
if ($fp) {
@flock($fp, LOCK_SH);
$ret = @stream_get_contents($fp);
@flock($fp, LOCK_UN);
@fclose($fp);
$data['content'] = $ret;
return $data;
}
} else {
$data['content'] = @file_get_contents($path);
return $data;
}
} else {
$path_old = $path . '_old';
$too_old_time = time() - 30;
$file_time = @filemtime($path_old);
if ($file_time) {
if ($file_time > $too_old_time) {
// return old data
$data['content'] = @file_get_contents($path_old);
return $data;
}
@touch($path_old);
}
}
return false;
}
/**
* Returns the OS-specific directory for temporary files
*
* @author Paul M. Jones <pmjones@solarphp.com>
* @license http://opensource.org/licenses/bsd-license.php BSD
* @link http://solarphp.com/trac/core/browser/trunk/Solar/Dir.php
*
* @return string
*/
protected static function _tmp()
{
// non-Windows system?
if (strtolower(substr(PHP_OS, 0, 3)) != 'win') {
$tmp = empty($_ENV['TMPDIR']) ? getenv('TMPDIR') : $_ENV['TMPDIR'];
if ($tmp) {
return $tmp;
} else {
return '/tmp';
}
}
// Windows 'TEMP'
$tmp = empty($_ENV['TEMP']) ? getenv('TEMP') : $_ENV['TEMP'];
if ($tmp) {
return $tmp;
}
// Windows 'TMP'
$tmp = empty($_ENV['TMP']) ? getenv('TMP') : $_ENV['TMP'];
if ($tmp) {
return $tmp;
}
// Windows 'windir'
$tmp = empty($_ENV['windir']) ? getenv('windir') : $_ENV['windir'];
if ($tmp) {
return $tmp;
}
// final fallback for Windows
return getenv('SystemRoot') . '\\temp';
}
/**
* Flush cache
*
* @return bool
*/
public function flush() {
@set_time_limit($this->_flushTimeLimit);
return \W3TC\Util_File::emptydir($this->_flush_path, $this->_exclude);
}
/**
* Fetch the cache path used
*
* @return string
*/
public function getPath() {
return $this->_path;
}
/**
* Returns size statistics about cache files
*/
public function get_stats_size($timeout_time)
{
$dir = @opendir($this->_path);
$stats = array(
'css' => array(
'items' => 0,
'original_length' => 0,
'output_length' => 0
),
'js' => array(
'items' => 0,
'original_length' => 0,
'output_length' => 0
),
'timeout_occurred' => false
);
if (!$dir)
return $stats;
$n = 0;
while (!$stats['timeout_occurred'] &&
($entry = @readdir($dir)) !== false) {
$n++;
if ($n % 1000 == 0)
$stats['timeout_occurred'] |= (time() > $timeout_time);
if (substr($entry, -8) == '.js_meta' || substr($entry, -13) == '.js_gzip_meta')
$type = 'js';
else if (substr($entry, -9) == '.css_meta' || substr($entry, -14) == '.css_gzip_meta')
$type = 'css';
else
continue;
$full_path = $this->_path . DIRECTORY_SEPARATOR . $entry;
$data = @file_get_contents($full_path);
if (!$data)
continue;
$data = @unserialize($data);
if (!is_array($data) || !isset($data['originalLength']))
continue;
$stats[$type]['items']++;
$stats[$type]['original_length'] += (int)$data['originalLength'];
$stats[$type]['output_length'] +=
@filesize(substr($full_path, 0, strlen($full_path) - 5));
}
@closedir($dir);
return $stats;
}
}