theme/styles_debug.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 of individual style sheets in designer mode.
  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 define('ABORT_AFTER_CONFIG', true);
  28 require('../config.php'); // this stops immediately at the beginning of lib/setup.php
  29 require_once($CFG->dirroot.'/lib/csslib.php');
  30
  31 $themename = min_optional_param('theme', 'standard', 'SAFEDIR');
  32 $type      = min_optional_param('type', '', 'SAFEDIR');
  33 $subtype   = min_optional_param('subtype', '', 'SAFEDIR');
  34 $sheet     = min_optional_param('sheet', '', 'SAFEDIR');
  35 $usesvg    = (bool)min_optional_param('svg', '1', 'INT');
  36
  37 if (!defined('THEME_DESIGNER_CACHE_LIFETIME')) {
  38     define('THEME_DESIGNER_CACHE_LIFETIME', 4); // this can be also set in config.php
  39 }
  40
  41 if (file_exists("$CFG->dirroot/theme/$themename/config.php")) {
  42     // exists
  43 } else if (!empty($CFG->themedir) and file_exists("$CFG->themedir/$themename/config.php")) {
  44     // exists
  45 } else {
  46     css_send_css_not_found();
  47 }
  48
  49 // no gzip compression when debugging
  50
  51 if ($usesvg) {
  52     $candidatesheet = "$CFG->cachedir/theme/$themename/designer.ser";
  53 } else {
  54     // Add to the sheet name, one day we'll be able to just drop this.
  55     $candidatesheet = "$CFG->cachedir/theme/$themename/designer_nosvg.ser";
  56 }
  57
  58 if (!file_exists($candidatesheet)) {
  59
  60     css_send_css_not_found();
  61 }
  62
  63 if (!$css = file_get_contents($candidatesheet)) {
  64     css_send_css_not_found();
  65 }
  66
  67 $css = unserialize($css);
  68
  69 if ($type === 'editor') {
  70     if (isset($css['editor'])) {
  71         css_send_uncached_css($css['editor']);
  72     }
  73 } else if ($type === 'ie') {
  74     // IE is a sloppy browser with weird limits, sorry
  75     if ($subtype === 'plugins') {
  76         css_send_uncached_css($css['plugins']);
  77
  78     } else if ($subtype === 'parents') {
  79         $sendcss = array();
  80         if (empty($sheet)) {
  81             // If not specific parent has been specified as $sheet then build a
  82             // collection of @import statements into this one sheet.
  83             // We shouldn't ever actually get here, but none the less we'll deal
  84             // with it incase we ever do.
  85             // @import statements arn't processed until after concurrent CSS requests
  86             // making them slightly evil.
  87             foreach (array_keys($css['parents']) as $sheet) {
  88                 $sendcss[] = "@import url(styles_debug.php?theme=$themename&type=$type&subtype=$subtype&sheet=$sheet);";
  89             }
  90         } else {
  91             // Build up the CSS for that parent so we can serve it as one file.
  92             foreach ($css[$subtype][$sheet] as $parent=>$css) {
  93                 $sendcss[] = $css;
  94             }
  95         }
  96         css_send_uncached_css($sendcss);
  97     } else if ($subtype === 'theme') {
  98         css_send_uncached_css($css['theme']);
  99     }
 100
 101 } else if ($type === 'plugin') {
 102     if (isset($css['plugins'][$subtype])) {
 103         css_send_uncached_css($css['plugins'][$subtype]);
 104     }
 105
 106 } else if ($type === 'parent') {
 107     if (isset($css['parents'][$subtype][$sheet])) {
 108         css_send_uncached_css($css['parents'][$subtype][$sheet]);
 109     }
 110
 111 } else if ($type === 'theme') {
 112     if (isset($css['theme'][$sheet])) {
 113         css_send_uncached_css($css['theme'][$sheet]);
 114     }
 115 }
 116 css_send_css_not_found();