mod/lti/ajax.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  * AJAX service used when adding an External Tool to provide immediate feedback
  19  * of which tool provider is to be used based on the Launch URL.
  20  *
  21  * @package    mod
  22  * @subpackage xml
  23  * @copyright Copyright (c) 2011 Moodlerooms Inc. (http://www.moodlerooms.com)
  24  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25  * @author     Chris Scribner
  26  */
  27
  28 require_once(dirname(__FILE__) . "/../../config.php");
  29 require_once($CFG->dirroot . '/mod/lti/locallib.php');
  30
  31 $courseid = required_param('course', PARAM_INT);
  32
  33 require_login($courseid, false);
  34
  35 $action = required_param('action', PARAM_TEXT);
  36
  37 $response = new stdClass();
  38
  39 switch ($action) {
  40     case 'find_tool_config':
  41         $toolurl = required_param('toolurl', PARAM_RAW);
  42         $toolid = optional_param('toolid', 0, PARAM_INT);
  43
  44         if(empty($toolid) && !empty($toolurl)){
  45             $tool = lti_get_tool_by_url_match($toolurl, $courseid);
  46
  47             if(!empty($tool)){
  48                 $toolid = $tool->id;
  49
  50                 $response->toolid = $tool->id;
  51                 $response->toolname = htmlspecialchars($tool->name);
  52                 $response->tooldomain = htmlspecialchars($tool->tooldomain);
  53             }
  54         } else {
  55             $response->toolid = $toolid;
  56         }
  57
  58         if (!empty($toolid)) {
  59             // Look up privacy settings
  60             $query = '
  61                 SELECT name, value
  62                 FROM {lti_types_config}
  63                 WHERE
  64                     typeid = :typeid
  65                 AND name IN (\'sendname\', \'sendemailaddr\', \'acceptgrades\')
  66             ';
  67
  68             $privacyconfigs = $DB->get_records_sql($query, array('typeid' => $toolid));
  69             foreach($privacyconfigs as $config){
  70                 $configname = $config->name;
  71                 $response->$configname = $config->value;
  72             }
  73         }
  74         break;
  75 }
  76
  77 echo json_encode($response);
  78
  79 die;