web/public_php/webtt/app/webroot/css.php

   1 <?php
   2 /**
   3  * CSS helping functions
   4  *
   5  * PHP versions 4 and 5
   6  *
   7  * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
   8  * Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
   9  *
  10  * Licensed under The MIT License
  11  * Redistributions of files must retain the above copyright notice.
  12  *
  13  * @copyright     Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
  14  * @link          http://cakephp.org CakePHP(tm) Project
  15  * @package       cake
  16  * @subpackage    cake.app.webroot
  17  * @since         CakePHP(tm) v 0.2.9
  18  * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
  19  */
  20 if (!defined('CAKE_CORE_INCLUDE_PATH')) {
  21         header('HTTP/1.1 404 Not Found');
  22         exit('File Not Found');
  23 }
  24
  25 /**
  26  * Ensure required classes are available.
  27  */
  28 if (!class_exists('File')) {
  29         uses('file');
  30 }
  31
  32 /**
  33  * Make clean CSS
  34  *
  35  * @param unknown_type $path
  36  * @param unknown_type $name
  37  * @return unknown
  38  */
  39         function make_clean_css($path, $name) {
  40                 App::import('Vendor', 'csspp' . DS . 'csspp');
  41                 $data = file_get_contents($path);
  42                 $csspp = new csspp();
  43                 $output = $csspp->compress($data);
  44                 $ratio = 100 - (round(strlen($output) / strlen($data), 3) * 100);
  45                 $output = " /* file: $name, ratio: $ratio% */ " . $output;
  46                 return $output;
  47         }
  48 /**
  49  * Write CSS cache
  50  *
  51  * @param unknown_type $path
  52  * @param unknown_type $content
  53  * @return unknown
  54  */
  55         function write_css_cache($path, $content) {
  56                 if (!is_dir(dirname($path))) {
  57                         mkdir(dirname($path));
  58                 }
  59                 $cache = new File($path);
  60                 return $cache->write($content);
  61         }
  62
  63         if (preg_match('|\.\.|', $url) || !preg_match('|^ccss/(.+)$|i', $url, $regs)) {
  64                 die('Wrong file name.');
  65         }
  66
  67         $filename = 'css/' . $regs[1];
  68         $filepath = CSS . $regs[1];
  69         $cachepath = CACHE . 'css' . DS . str_replace(array('/','\\'), '-', $regs[1]);
  70
  71         if (!file_exists($filepath)) {
  72                 die('Wrong file name.');
  73         }
  74
  75         if (file_exists($cachepath)) {
  76                 $templateModified = filemtime($filepath);
  77                 $cacheModified = filemtime($cachepath);
  78
  79                 if ($templateModified > $cacheModified) {
  80                         $output = make_clean_css($filepath, $filename);
  81                         write_css_cache($cachepath, $output);
  82                 } else {
  83                         $output = file_get_contents($cachepath);
  84                 }
  85         } else {
  86                 $output = make_clean_css($filepath, $filename);
  87                 write_css_cache($cachepath, $output);
  88                 $templateModified = time();
  89         }
  90
  91         header("Date: " . date("D, j M Y G:i:s ", $templateModified) . 'GMT');
  92         header("Content-Type: text/css");
  93         header("Expires: " . gmdate("D, d M Y H:i:s", time() + DAY) . " GMT");
  94         header("Cache-Control: max-age=86400, must-revalidate"); // HTTP/1.1
  95         header("Pragma: cache");        // HTTP/1.0
  96         print $output;