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@rodrigorm
Created November 23, 2010 13:49
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CakePHP CSS and JS preprocessor
<?php
/**
* CSS Functions
*
* PHP versions 4 and 5
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @package cake
* @subpackage cake.app.webroot
* @since CakePHP(tm) v 0.2.9
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
if (!defined('CAKE_CORE_INCLUDE_PATH')) {
header('HTTP/1.1 404 Not Found');
exit('File Not Found');
}
/**
* Ensure required files are included
*/
if (!class_exists('File')) {
require LIBS . 'file.php';
}
/**
* Make clean CSS
*
* @param unknown_type $path
* @param unknown_type $name
* @return unknown
*/
function make_clean_css($path, $name) {
App::import('Vendor', 'csspp' . DS . 'csspp');
$baseDir = Configure::read('App.www_root') . 'css' . DS;
$csspp = new CSSPP(str_replace($baseDir, '', $path), $baseDir, array('expanders' => false));
if (Configure::read('debug') !== 0) {
$csspp->setOption('imports', false);
$csspp->setOption('minify', false);
}
return (string)$csspp;
}
/**
* Write CSS cache
*
* @param unknown_type $path
* @param unknown_type $content
* @return unknown
*/
function write_css_cache($path, $content) {
if (Configure::read('debug') !== 0) {
return true;
}
if (!is_dir(dirname($path))) {
mkdir(dirname($path));
}
$cache = new File($path);
return $cache->write($content);
}
if (preg_match('|\.\.|', $url) || !preg_match('|^ccss/(.+)$|i', $url, $regs)) {
exit('Wrong file name.');
}
$filename = 'css/' . $regs[1];
$filepath = CSS . $regs[1];
$cachepath = Configure::read('App.www_root') . 'ccss' . DS . str_replace(array('/','\\'), DS, $regs[1]);
if (!file_exists($filepath)) {
exit('Wrong file name.');
}
if (file_exists($cachepath) && Configure::read('debug') == 0) {
$templateModified = filemtime($filepath);
$cacheModified = filemtime($cachepath);
if ($templateModified > $cacheModified) {
$output = make_clean_css($filepath, $filename);
write_css_cache($cachepath, $output);
} else {
$output = file_get_contents($cachepath);
}
} else {
$output = make_clean_css($filepath, $filename);
write_css_cache($cachepath, $output);
$templateModified = time();
}
header("Date: " . date("D, j M Y G:i:s ", $templateModified) . 'GMT');
header("Content-Type: text/css");
header("Expires: " . gmdate("D, j M Y H:i:s", time() + DAY) . " GMT");
header("Cache-Control: max-age=86400, must-revalidate"); // HTTP/1.1
header("Pragma: cache"); // HTTP/1.0
print $output;
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