theme/styles_debug.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * This file is responsible for serving of individual style sheets in designer mode.
  19  *
  20  * @package   core
  21  * @copyright 2009 Petr Skoda (skodak)  {@link http://skodak.org}
  22  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25
  26 define('ABORT_AFTER_CONFIG', true);
  27 require('../config.php'); // this stops immediately at the beginning of lib/setup.php
  28 require_once($CFG->dirroot.'/lib/csslib.php');
  29
  30 $themename = min_optional_param('theme', 'standard', 'SAFEDIR');
  31 $type      = min_optional_param('type', '', 'SAFEDIR');
  32 $subtype   = min_optional_param('subtype', '', 'SAFEDIR');
  33 $sheet     = min_optional_param('sheet', '', 'SAFEDIR');
  34 $usesvg    = (bool)min_optional_param('svg', '1', 'INT');
  35
  36 if (!defined('THEME_DESIGNER_CACHE_LIFETIME')) {
  37     define('THEME_DESIGNER_CACHE_LIFETIME', 4); // this can be also set in config.php
  38 }
  39
  40 if (file_exists("$CFG->dirroot/theme/$themename/config.php")) {
  41     // exists
  42 } else if (!empty($CFG->themedir) and file_exists("$CFG->themedir/$themename/config.php")) {
  43     // exists
  44 } else {
  45     css_send_css_not_found();
  46 }
  47
  48 // no gzip compression when debugging
  49
  50 if ($usesvg) {
  51     $candidatesheet = "$CFG->cachedir/theme/$themename/designer.ser";
  52 } else {
  53     // Add to the sheet name, one day we'll be able to just drop this.
  54     $candidatesheet = "$CFG->cachedir/theme/$themename/designer_nosvg.ser";
  55 }
  56
  57 if (!file_exists($candidatesheet)) {
  58
  59     css_send_css_not_found();
  60 }
  61
  62 if (!$css = file_get_contents($candidatesheet)) {
  63     css_send_css_not_found();
  64 }
  65
  66 $css = unserialize($css);
  67
  68 if ($type === 'editor') {
  69     if (isset($css['editor'])) {
  70         css_send_uncached_css($css['editor']);
  71     }
  72 } else if ($type === 'ie') {
  73     // IE is a sloppy browser with weird limits, sorry
  74     if ($subtype === 'plugins') {
  75         css_send_uncached_css($css['plugins']);
  76
  77     } else if ($subtype === 'parents') {
  78         $sendcss = array();
  79         if (empty($sheet)) {
  80             // If not specific parent has been specified as $sheet then build a
  81             // collection of @import statements into this one sheet.
  82             // We shouldn't ever actually get here, but none the less we'll deal
  83             // with it incase we ever do.
  84             // @import statements arn't processed until after concurrent CSS requests
  85             // making them slightly evil.
  86             foreach (array_keys($css['parents']) as $sheet) {
  87                 $sendcss[] = "@import url(styles_debug.php?theme=$themename&type=$type&subtype=$subtype&sheet=$sheet);";
  88             }
  89         } else {
  90             // Build up the CSS for that parent so we can serve it as one file.
  91             foreach ($css[$subtype][$sheet] as $parent=>$css) {
  92                 $sendcss[] = $css;
  93             }
  94         }
  95         css_send_uncached_css($sendcss);
  96     } else if ($subtype === 'theme') {
  97         css_send_uncached_css($css['theme']);
  98     }
  99
 100 } else if ($type === 'plugin') {
 101     if (isset($css['plugins'][$subtype])) {
 102         css_send_uncached_css($css['plugins'][$subtype]);
 103     }
 104
 105 } else if ($type === 'parent') {
 106     if (isset($css['parents'][$subtype][$sheet])) {
 107         css_send_uncached_css($css['parents'][$subtype][$sheet]);
 108     }
 109
 110 } else if ($type === 'theme') {
 111     if (isset($css['theme'][$sheet])) {
 112         css_send_uncached_css($css['theme'][$sheet]);
 113     }
 114 }
 115 css_send_css_not_found();