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 the one huge CSS of each theme.
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 $themename = min_optional_param('theme', 'standard', 'SAFEDIR');
32 $type = min_optional_param('type', 'all', 'SAFEDIR');
33 $rev = min_optional_param('rev', 0, 'INT');
35 if (!in_array($type, array('all', 'ie', 'editor', 'plugins', 'parents', 'theme'))) {
36 header('HTTP/1.0 404 not found');
37 die('Theme was not found, sorry.');
40 if (file_exists("$CFG->dirroot/theme/$themename/config.php")) {
42 } else if (!empty($CFG->themedir) and file_exists("$CFG->themedir/$themename/config.php")) {
45 header('HTTP/1.0 404 not found');
46 die('Theme was not found, sorry.');
50 send_ie_css($themename, $rev);
53 $candidatesheet = "$CFG->dataroot/cache/theme/$themename/css/$type.css";
55 if (file_exists($candidatesheet)) {
56 if (!empty($_SERVER['HTTP_IF_NONE_MATCH'])) {
57 // we do not actually need to verify the etag value because our files
58 // never change in cache because we increment the rev parameter
59 header('HTTP/1.1 304 Not Modified');
62 send_cached_css($candidatesheet, $rev);
65 //=================================================================================
66 // ok, now we need to start normal moodle script, we need to load all libs and $DB
67 define('ABORT_AFTER_CONFIG_CANCEL', true);
69 define('NO_MOODLE_COOKIES', true); // Session not used here
70 define('NO_UPGRADE_CHECK', true); // Ignore upgrade check
72 require("$CFG->dirroot/lib/setup.php");
74 $theme = theme_config::load($themename);
76 if ($type === 'editor') {
77 $css = $theme->editor_css_content();
78 store_css($candidatesheet, $css);
80 $css = $theme->css_content();
81 foreach ($css as $key=>$value) {
83 foreach($value as $val) {
85 $sheet .= "\n\n".implode("\n\n", $val);
87 $sheet .= "\n\n".$val;
91 $cssfile = "$CFG->dataroot/cache/theme/$themename/css/$key.css";
92 store_css($cssfile, $sheet);
94 $css = implode('', $css);
95 $cssfile = "$CFG->dataroot/cache/theme/$themename/css/all.css";
96 store_css($cssfile, $css);
99 send_cached_css($candidatesheet, $rev);
102 //=================================================================================
103 //=== utility functions ==
104 // we are not using filelib because we need to fine tune all header
105 // parameters to get the best performance.
107 function store_css($csspath, $css) {
108 check_dir_exists(dirname($csspath), true, true);
109 $fp = fopen($csspath, 'w');
114 function send_ie_css($themename, $rev) {
115 $lifetime = 60*60*24*3;
118 /** Unfortunately IE6/7 does not support more than 4096 selectors in one CSS file, which means we have to use some ugly hacks :-( **/
119 @import url(styles.php?theme=$themename&rev=$rev&type=plugins);
120 @import url(styles.php?theme=$themename&rev=$rev&type=parents);
121 @import url(styles.php?theme=$themename&rev=$rev&type=theme);
125 header('Etag: '.md5($rev));
126 header('Content-Disposition: inline; filename="styles.php"');
127 header('Last-Modified: '. gmdate('D, d M Y H:i:s', time()) .' GMT');
128 header('Expires: '. gmdate('D, d M Y H:i:s', time() + $lifetime) .' GMT');
130 header('Accept-Ranges: none');
131 header('Content-Type: text/css');
132 if (!min_enable_zlib_compression()) {
133 header('Content-Length: '.strlen($css));
140 function send_cached_css($csspath, $rev) {
141 $lifetime = 60*60*24*20;
143 header('Content-Disposition: inline; filename="styles.php"');
144 header('Last-Modified: '. gmdate('D, d M Y H:i:s', filemtime($csspath)) .' GMT');
145 header('Expires: '. gmdate('D, d M Y H:i:s', time() + $lifetime) .' GMT');
147 header('Accept-Ranges: none');
148 header('Content-Type: text/css');
149 if (!min_enable_zlib_compression()) {
150 header('Content-Length: '.filesize($csspath));