theme/styles.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   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.
   9 //
  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.
  14 //
  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/>.
  17
  18 /**
  19  * This file is responsible for serving the one huge CSS of each theme.
  20  *
  21  * @package   moodlecore
  22  * @copyright 2009 Petr Skoda (skodak)  {@link http://skodak.org}
  23  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  */
  25
  26
  27 // disable moodle specific debug messages and any errors in output,
  28 // comment out when debugging or better look into error log!
  29 define('NO_DEBUG_DISPLAY', true);
  30
  31 // we need just the values from config.php and minlib.php
  32 define('ABORT_AFTER_CONFIG', true);
  33 require('../config.php'); // this stops immediately at the beginning of lib/setup.php
  34 require_once($CFG->dirroot.'/lib/csslib.php');
  35
  36 $themename = min_optional_param('theme', 'standard', 'SAFEDIR');
  37 $type      = min_optional_param('type', 'all', 'SAFEDIR');
  38 $rev       = min_optional_param('rev', 0, 'INT');
  39
  40 if (!in_array($type, array('all', 'ie', 'editor', 'plugins', 'parents', 'theme'))) {
  41     header('HTTP/1.0 404 not found');
  42     die('Theme was not found, sorry.');
  43 }
  44
  45 if (file_exists("$CFG->dirroot/theme/$themename/config.php")) {
  46     // exists
  47 } else if (!empty($CFG->themedir) and file_exists("$CFG->themedir/$themename/config.php")) {
  48     // exists
  49 } else {
  50     header('HTTP/1.0 404 not found');
  51     die('Theme was not found, sorry.');
  52 }
  53
  54 if ($type === 'ie') {
  55     css_send_ie_css($themename, $rev);
  56 }
  57
  58 $candidatesheet = "$CFG->cachedir/theme/$themename/css/$type.css";
  59
  60 if (file_exists($candidatesheet)) {
  61     if (!empty($_SERVER['HTTP_IF_NONE_MATCH']) || !empty($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
  62         // we do not actually need to verify the etag value because our files
  63         // never change in cache because we increment the rev parameter
  64         $lifetime = 60*60*24*30; // 30 days
  65         header('HTTP/1.1 304 Not Modified');
  66         header('Expires: '. gmdate('D, d M Y H:i:s', time() + $lifetime) .' GMT');
  67         header('Cache-Control: max-age='.$lifetime);
  68         header('Content-Type: text/css; charset=utf-8');
  69         die;
  70     }
  71     css_send_cached_css($candidatesheet, $rev);
  72 }
  73
  74 //=================================================================================
  75 // ok, now we need to start normal moodle script, we need to load all libs and $DB
  76 define('ABORT_AFTER_CONFIG_CANCEL', true);
  77
  78 define('NO_MOODLE_COOKIES', true); // Session not used here
  79 define('NO_UPGRADE_CHECK', true);  // Ignore upgrade check
  80
  81 require("$CFG->dirroot/lib/setup.php");
  82
  83 $theme = theme_config::load($themename);
  84
  85 if ($type === 'editor') {
  86     $cssfiles = $theme->editor_css_files();
  87     css_store_css($theme, $candidatesheet, $cssfiles);
  88 } else {
  89     $css = $theme->css_files();
  90     $allfiles = array();
  91     foreach ($css as $key=>$value) {
  92         $cssfiles = array();
  93         foreach($value as $val) {
  94             if (is_array($val)) {
  95                 foreach ($val as $k=>$v) {
  96                     $cssfiles[] = $v;
  97                 }
  98             } else {
  99                 $cssfiles[] = $val;
 100             }
 101         }
 102         $cssfile = "$CFG->cachedir/theme/$themename/css/$key.css";
 103         css_store_css($theme, $cssfile, $cssfiles);
 104         $allfiles = array_merge($allfiles, $cssfiles);
 105     }
 106     $cssfile = "$CFG->cachedir/theme/$themename/css/all.css";
 107     css_store_css($theme, $cssfile, $allfiles);
 108 }
 109 css_send_cached_css($candidatesheet, $rev);