weekly release 4.0dev
[moodle.git] / theme / javascript.php
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38aafea2 1<?php
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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 the one huge CSS of each theme.
19 *
8ab29743 20 * @package core
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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
e68c5f36 25
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26// disable moodle specific debug messages and any errors in output,
27// comment out when debugging or better look into error log!
28define('NO_DEBUG_DISPLAY', true);
29
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30// we need just the values from config.php and minlib.php
31define('ABORT_AFTER_CONFIG', true);
32require('../config.php'); // this stops immediately at the beginning of lib/setup.php
8ab29743 33require_once("$CFG->dirroot/lib/jslib.php");
e68c5f36 34
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35if ($slashargument = min_get_slash_argument()) {
36 $slashargument = ltrim($slashargument, '/');
37 if (substr_count($slashargument, '/') < 2) {
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38 header('HTTP/1.0 404 not found');
39 die('Slash argument must contain both a revision and a file path');
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40 }
41 // image must be last because it may contain "/"
42 list($themename, $rev, $type) = explode('/', $slashargument, 3);
43 $themename = min_clean_param($themename, 'SAFEDIR');
44 $rev = min_clean_param($rev, 'INT');
45 $type = min_clean_param($type, 'SAFEDIR');
46
47} else {
48 $themename = min_optional_param('theme', 'standard', 'SAFEDIR');
0238ca0d 49 $rev = min_optional_param('rev', -1, 'INT');
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50 $type = min_optional_param('type', 'head', 'RAW');
51}
04c01408 52
baeb20bb 53if ($type !== 'head' and $type !== 'footer') {
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54 header('HTTP/1.0 404 not found');
55 die('Theme was not found, sorry.');
56}
57
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58if (file_exists("$CFG->dirroot/theme/$themename/config.php")) {
59 // exists
60} else if (!empty($CFG->themedir) and file_exists("$CFG->themedir/$themename/config.php")) {
61 // exists
62} else {
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63 header('HTTP/1.0 404 not found');
64 die('Theme was not found, sorry.');
65}
66
cb8108dd 67$candidate = "$CFG->localcachedir/theme/$rev/$themename/javascript_$type.js";
0238ca0d 68$etag = sha1("$rev/$themename/$type");
e68c5f36 69
0238ca0d 70if ($rev > 0 and file_exists($candidate)) {
aa603b14 71 if (!empty($_SERVER['HTTP_IF_NONE_MATCH']) || !empty($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
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72 // we do not actually need to verify the etag value because our files
73 // never change in cache because we increment the rev parameter
8ab29743 74 js_send_unmodified(filemtime($candidate), $etag);
e68c5f36 75 }
8ab29743 76 js_send_cached($candidate, $etag);
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77}
78
79//=================================================================================
80// ok, now we need to start normal moodle script, we need to load all libs and $DB
81define('ABORT_AFTER_CONFIG_CANCEL', true);
82
83define('NO_MOODLE_COOKIES', true); // Session not used here
84define('NO_UPGRADE_CHECK', true); // Ignore upgrade check
85
86require("$CFG->dirroot/lib/setup.php");
87
88$theme = theme_config::load($themename);
0238ca0d 89$themerev = theme_get_revision();
e68c5f36 90
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91if ($themerev <= 0 or $rev != $themerev) {
92 // Do not send caching headers if they do not request current revision,
93 // we do not want to pollute browser caches with outdated JS.
94 js_send_uncached($theme->javascript_content($type));
95}
8475b970 96
cb8108dd 97make_localcache_directory('theme', false);
0238ca0d 98
6b32d6bc 99js_write_cache_file_content($candidate, core_minify::js_files($theme->javascript_files($type)));
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100// Verify nothing failed in cache file creation.
101clearstatcache();
102if (file_exists($candidate)) {
103 js_send_cached($candidate, $etag);
045f492c 104}
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105
106js_send_uncached($theme->javascript_content($type));