mod/lti/registrationreturn.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  * 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 }