repository/repository_callback.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 /**
  20  * Repository instance callback script
  21  *
  22  * @since Moodle 2.0
  23  * @package    core
  24  * @subpackage repository
  25  * @copyright  2009 Dongsheng Cai <dongsheng@moodle.com>
  26  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  27  */
  28
  29 require_once(__DIR__ . '/../config.php');
  30 require_once(__DIR__ . '/../lib/filelib.php');
  31 require_once(__DIR__.'/lib.php');
  32
  33 require_login();
  34
  35 /// Parameters
  36 $repo_id   = required_param('repo_id', PARAM_INT); // Repository ID
  37
  38 /// Headers to make it not cacheable
  39 header('Cache-Control: no-cache, must-revalidate');
  40 header('Expires: Sat, 26 Jul 1997 05:00:00 GMT');
  41
  42 /// Wait as long as it takes for this script to finish
  43 core_php_time_limit::raise();
  44
  45 /// Get repository instance information
  46 $sql = 'SELECT i.name, i.typeid, r.type, i.contextid FROM {repository} r, {repository_instances} i '.
  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 = $repository->type;
  52
  53 if (file_exists($CFG->dirroot.'/repository/'.$type.'/lib.php')) {
  54     require_once($CFG->dirroot.'/repository/'.$type.'/lib.php');
  55     $classname = 'repository_' . $type;
  56     $repo = new $classname($repo_id, $repository->contextid, array('type'=>$type));
  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.
  70 $strhttpsbug = json_encode(get_string('cannotaccessparentwin', 'repository'));
  71 $strrefreshnonjs = get_string('refreshnonjsfilepicker', 'repository');
  72 $reloadparent = optional_param('reloadparent', false, PARAM_BOOL);
  73 // If this request is coming from a popup, close window and reload parent window.
  74 if ($reloadparent == true) {
  75     $js = <<<EOD
  76 <html>
  77 <head>
  78     <script type="text/javascript">
  79         window.opener.location.reload();
  80         window.close();
  81     </script>
  82 </head>
  83 <body></body>
  84 </html>
  85 EOD;
  86     die($js);
  87 }
  88
  89 $js =<<<EOD
  90 <html>
  91 <head>
  92     <script type="text/javascript">
  93     try {
  94         if (window.opener) {
  95             window.opener.M.core_filepicker.active_filepicker.list();
  96             window.close();
  97         } else {
  98             throw new Error('Whoops!');
  99         }
 100     } catch (e) {
 101         alert({$strhttpsbug});
 102     }
 103     </script>
 104 </head>
 105 <body>
 106     <noscript>
 107     {$strrefreshnonjs}
 108     </noscript>
 109 </body>
 110 </html>
 111 EOD;
 112
 113 die($js);