MDL-52068 repository: Prevent JS errors due to unescaped lang strings
[moodle.git] / repository / repository_callback.php
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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/**
e35194be 20 * Repository instance callback script
64f93798 21 *
5bcfd504 22 * @since Moodle 2.0
5d354ded 23 * @package core
64f93798 24 * @subpackage repository
5d354ded
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25 * @copyright 2009 Dongsheng Cai <dongsheng@moodle.com>
26 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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27 */
28
29require_once(dirname(dirname(__FILE__)).'/config.php');
30require_once(dirname(dirname(__FILE__)).'/lib/filelib.php');
31require_once(dirname(__FILE__).'/lib.php');
32
33require_login();
34
35/// Parameters
e35194be 36$repo_id = required_param('repo_id', PARAM_INT); // Repository ID
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37
38/// Headers to make it not cacheable
39header('Cache-Control: no-cache, must-revalidate');
40header('Expires: Sat, 26 Jul 1997 05:00:00 GMT');
41
64f93798 42/// Wait as long as it takes for this script to finish
3ef7279f 43core_php_time_limit::raise();
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44
45/// Get repository instance information
e35194be 46$sql = 'SELECT i.name, i.typeid, r.type, i.contextid FROM {repository} r, {repository_instances} i '.
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47 'WHERE i.id=? AND i.typeid=r.id';
48
49$repository = $DB->get_record_sql($sql, array($repo_id), '*', MUST_EXIST);
50
51$type = $repository->type;
52
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53if (file_exists($CFG->dirroot.'/repository/'.$type.'/lib.php')) {
54 require_once($CFG->dirroot.'/repository/'.$type.'/lib.php');
64f93798 55 $classname = 'repository_' . $type;
76b946f7 56 $repo = new $classname($repo_id, $repository->contextid, array('type'=>$type));
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57} else {
58 print_error('invalidplugin', 'repository', $type);
59}
60
61// post callback
62$repo->callback();
63// call opener window to refresh repository
64// the callback url should be something like this:
65// http://xx.moodle.com/repository/repository_callback.php?repo_id=1&sid=xxx
66// sid is the attached auth token from external source
67// If Moodle is working on HTTPS mode, then we are not allowed to access
68// parent window, in this case, we need to alert user to refresh the repository
69// manually.
28f8993d 70$strhttpsbug = json_encode(get_string('cannotaccessparentwin', 'repository'));
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71$strrefreshnonjs = get_string('refreshnonjsfilepicker', 'repository');
72$js =<<<EOD
73<html>
74<head>
75 <script type="text/javascript">
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76 try {
77 if (window.opener) {
78 window.opener.M.core_filepicker.active_filepicker.list();
79 window.close();
80 } else {
81 throw new Error('Whoops!');
82 }
83 } catch (e) {
84 alert({$strhttpsbug});
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85 }
86 </script>
87</head>
88<body>
89 <noscript>
90 {$strrefreshnonjs}
91 </noscript>
92</body>
93</html>
94EOD;
95
96die($js);