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<?php
/** This file is part of KCFinder project
*
* @desc Minify JS & CSS
* @package KCFinder
* @version 3.12
* @author Pavel Tzonkov <sunhater@sunhater.com>
* @copyright 2010-2014 KCFinder Project
* @license http://opensource.org/licenses/GPL-3.0 GPLv3
* @license http://opensource.org/licenses/LGPL-3.0 LGPLv3
* @link http://kcfinder.sunhater.com
*/
namespace kcfinder;
class minifier {
protected $config;
protected $type = "js";
protected $minCmd = "";
protected $mime = array(
'js' => "text/javascript",
'css' => "text/css"
);
public function __construct($type=null) {
require "conf/config.php";
$this->config = $_CONFIG;
$type = strtolower($type);
if (isset($this->mime[$type]))
$this->type = $type;
if (isset($_CONFIG["_{$this->type}MinCmd"]))
$this->minCmd = $_CONFIG["_{$this->type}MinCmd"];
}
public function minify($cacheFile=null, $dir=null) {
if ($dir === null)
$dir = dirname($_SERVER['SCRIPT_FILENAME']);
// MODIFICATION TIME FILES
$mtFiles = array(
__FILE__,
$_SERVER['SCRIPT_FILENAME'],
"conf/config.php"
);
// GET SOURCE CODE FILES
$files = dir::content($dir, array(
'types' => "file",
'pattern' => '/^.*\.' . $this->type . '$/'
));
// GET NEWEST MODIFICATION TIME
$mtime = 0;
foreach (array_merge($mtFiles, $files) as $file) {
$fmtime = filemtime($file);
if ($fmtime > $mtime)
$mtime = $fmtime;
}
$header = "Content-Type: {$this->mime[$this->type]}";
// GET SOURCE CODE FROM CLIENT HTTP CACHE IF EXISTS
httpCache::checkMTime($mtime, $header);
// OUTPUT SOURCE CODE
header($header);
// GET SOURCE CODE FROM SERVER-SIDE CACHE
if (($cacheFile !== null) &&
file_exists($cacheFile) &&
(
(filemtime($cacheFile) >= $mtime) ||
!is_writable($cacheFile) // if cache file cannot be modified
) // the script will output it always
) { // with its distribution content
readfile($cacheFile);
die;
}
// MINIFY AND JOIN SOURCE CODE
$source = "";
foreach ($files as $file) {
if (strlen($this->minCmd) && (substr($file, 4, 1) != "_")) {
$cmd = str_replace("{file}", $file, $this->minCmd);
$source .= `$cmd`;
} else
$source .= file_get_contents($file);
}
// UPDATE SERVER-SIDE CACHE
if (($cacheFile !== null) &&
(
is_writable($cacheFile) ||
(
!file_exists($cacheFile) &&
dir::isWritable(dirname($cacheFile))
)
)
) {
file_put_contents($cacheFile, $source);
touch($cacheFile, $mtime);
}
// OUTPUT SOURCE CODE
echo $source;
}
}
?>
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