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See Release Notes

  • Bug fixes for general core bugs in 4.0.x will end 8 May 2023 (12 months).
  • Bug fixes for security issues in 4.0.x will end 13 November 2023 (18 months).
  • PHP version: minimum PHP 7.3.0 Note: the minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is also supported.
   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   * Handle the return from the Tool Provider after registering a tool proxy.
  19   *
  20   * @package mod_lti
  21   * @copyright  2014 Vital Source Technologies http://vitalsource.com
  22   * @author     Stephen Vickers
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  require_once('../../config.php');
  27  require_once($CFG->dirroot.'/mod/lti/locallib.php');
  28  
  29  $top = optional_param('top', 0, PARAM_INT);
  30  $msg = optional_param('lti_msg', '', PARAM_TEXT);
  31  $err = optional_param('lti_errormsg', '', PARAM_TEXT);
  32  $id = optional_param('id', 0, PARAM_INT);
  33  
  34  // No guest autologin.
  35  require_sesskey();
  36  require_login(0, false);
  37  
  38  $systemcontext = context_system::instance();
  39  require_capability('moodle/site:config', $systemcontext);
  40  
  41  if (empty($top)) {
  42  
  43      $params = array();
  44      $params['sesskey'] = sesskey();
  45      $params['top'] = '1';
  46      if (!empty($msg)) {
  47          $params['lti_msg'] = $msg;
  48      }
  49      if (!empty($err)) {
  50          $params['lti_errormsg'] = $err;
  51      }
  52      if (!empty($id)) {
  53          $params['id'] = $id;
  54      }
  55      $redirect = new moodle_url('/mod/lti/registrationreturn.php', $params);
  56      $redirect = $redirect->out(false);
  57  
  58      $clickhere = get_string('click_to_continue', 'lti', (object)array('link' => $redirect));
  59      $html = <<< EOD
  60  <html>
  61  <head>
  62  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  63  <script type="text/javascript">
  64  //<![CDATA[
  65  top.location.href = '{$redirect}';
  66  //]]
  67  </script>
  68  </head>
  69  <body>
  70  <noscript>
  71  {$clickhere}
  72  </noscript>
  73  </body>
  74  </html>
  75  EOD;
  76  
  77      // We always send the headers because they set the encoding.
  78      send_headers('text/html; charset=utf-8', false);
  79      echo $html;
  80  
  81  } else if (!empty($msg) && !empty($err)) {
  82  
  83      $params = array();
  84      $params['sesskey'] = sesskey();
  85      $params['top'] = '1';
  86      if (!empty($err)) {
  87          $params['lti_errormsg'] = $err;
  88      }
  89      if (!empty($id)) {
  90          $params['id'] = $id;
  91      }
  92      $redirect = new moodle_url('/mod/lti/registrationreturn.php', $params);
  93      $redirect = $redirect->out(false);
  94      redirect($redirect, $err);
  95  
  96  } else {
  97  
  98      $redirect = new moodle_url('/mod/lti/toolproxies.php');
  99      if (!empty($id)) {
 100          $toolproxy = $DB->get_record('lti_tool_proxies', array('id' => $id));
 101          switch($toolproxy->state) {
 102              case LTI_TOOL_PROXY_STATE_ACCEPTED:
 103                  $redirect->param('tab', 'tp_accepted');
 104                  break;
 105              case LTI_TOOL_PROXY_STATE_REJECTED:
 106                  $redirect->param('tab', 'tp_rejected');
 107                  break;
 108              case LTI_TOOL_PROXY_STATE_PENDING:
 109                  // Change the status to configured.
 110                  $toolproxy->state = LTI_TOOL_PROXY_STATE_CONFIGURED;
 111                  lti_update_tool_proxy($toolproxy);
 112          }
 113      }
 114  
 115      $redirect = $redirect->out();
 116  
 117      if (empty($msg)) {
 118          $msg = $err;
 119      }
 120      redirect($redirect, $msg);
 121  
 122  }