3 // This file is part of Moodle - http://moodle.org/
5 // Moodle is free software: you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation, either version 3 of the License, or
8 // (at your option) any later version.
10 // Moodle is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
15 // You should have received a copy of the GNU General Public License
16 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
19 * This file is responsible for serving of yui images
22 * @copyright 2009 Petr Skoda (skodak) {@link http://skodak.org}
23 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
27 // we need just the values from config.php and minlib.php
28 define('ABORT_AFTER_CONFIG', true);
29 require('../config.php'); // this stops immediately at the beginning of lib/setup.php
31 // get special url parameters
32 if (!$parts = combo_params()) {
36 // find out what we are serving - only one type per request
38 if (substr($parts, -3) === '.js') {
39 $mimetype = 'application/x-javascript';
40 } else if (substr($parts, -4) === '.css') {
41 $mimetype = 'text/css';
46 $parts = explode('&', $parts);
48 foreach ($parts as $part) {
49 $part = min_clean_param($part, 'SAFEPATH');
50 $bits = explode('/', $part);
51 if (count($bits) < 2) {
55 if ($version != $CFG->yui3version and $version != $CFG->yui2version) {
58 $contentfile = "$CFG->libdir/yui/$part";
59 if (!file_exists($contentfile) or !is_file($contentfile)) {
62 $filecontent = file_get_contents($contentfile);
64 if ($mimetype === 'text/css') {
65 // search for all images in yui2 CSS and serve them through the yui_image.php script
66 $filecontent = preg_replace('/([a-z-]+)\.(png|gif)/', 'yui_image.php?file='.$version.'/$1.$2', $filecontent);
69 $content .= $filecontent;
73 combo_send_cached($content, $mimetype);
77 function combo_send_cached($content, $mimetype) {
78 $lifetime = 60*60*24*300; // 300 days === forever
80 header('Content-Disposition: inline; filename="combo"');
81 header('Last-Modified: '. gmdate('D, d M Y H:i:s', time()) .' GMT');
82 header('Expires: '. gmdate('D, d M Y H:i:s', time() + $lifetime) .' GMT');
84 header('Accept-Ranges: none');
85 header('Content-Type: '.$mimetype);
86 header('Content-Length: '.strlen($content));
88 while (@ob_end_flush()); //flush the buffers - save memory and disable sid rewrite
93 function combo_not_found() {
94 header('HTTP/1.0 404 not found');
95 die('Combo resource not found, sorry.');
98 function combo_params() {
99 if (!empty($_SERVER['REQUEST_URI'])) {
100 $parts = explode('?', $_SERVER['REQUEST_URI']);
101 if (count($parts) != 2) {
106 } else if (!empty($_SERVER['QUERY_STRING'])) {
107 return $_SERVER['QUERY_STRING'];