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Differences Between: [Versions 310 and 403] [Versions 311 and 403] [Versions 39 and 403] [Versions 400 and 403] [Versions 401 and 403] [Versions 402 and 403]

   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  // This file is part of BasicLTI4Moodle
  18  //
  19  // BasicLTI4Moodle is an IMS BasicLTI (Basic Learning Tools for Interoperability)
  20  // consumer for Moodle 1.9 and Moodle 2.0. BasicLTI is a IMS Standard that allows web
  21  // based learning tools to be easily integrated in LMS as native ones. The IMS BasicLTI
  22  // specification is part of the IMS standard Common Cartridge 1.1 Sakai and other main LMS
  23  // are already supporting or going to support BasicLTI. This project Implements the consumer
  24  // for Moodle. Moodle is a Free Open source Learning Management System by Martin Dougiamas.
  25  // BasicLTI4Moodle is a project iniciated and leaded by Ludo(Marc Alier) and Jordi Piguillem
  26  // at the GESSI research group at UPC.
  27  // SimpleLTI consumer for Moodle is an implementation of the early specification of LTI
  28  // by Charles Severance (Dr Chuck) htp://dr-chuck.com , developed by Jordi Piguillem in a
  29  // Google Summer of Code 2008 project co-mentored by Charles Severance and Marc Alier.
  30  //
  31  // BasicLTI4Moodle is copyright 2009 by Marc Alier Forment, Jordi Piguillem and Nikolas Galanis
  32  // of the Universitat Politecnica de Catalunya http://www.upc.edu
  33  // Contact info: Marc Alier Forment granludo @ gmail.com or marc.alier @ upc.edu.
  34  
  35  /**
  36   * This file contains all necessary code to view a lti activity instance
  37   *
  38   * @package mod_lti
  39   * @copyright  2009 Marc Alier, Jordi Piguillem, Nikolas Galanis
  40   *  marc.alier@upc.edu
  41   * @copyright  2009 Universitat Politecnica de Catalunya http://www.upc.edu
  42   * @author     Marc Alier
  43   * @author     Jordi Piguillem
  44   * @author     Nikolas Galanis
  45   * @author     Chris Scribner
  46   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  47   */
  48  
  49  require_once("../../config.php");
  50  require_once($CFG->dirroot.'/mod/lti/lib.php');
  51  require_once($CFG->dirroot.'/mod/lti/locallib.php');
  52  
  53  $cmid = required_param('id', PARAM_INT); // Course Module ID.
  54  $triggerview = optional_param('triggerview', 1, PARAM_BOOL);
  55  $action = optional_param('action', '', PARAM_TEXT);
  56  $foruserid = optional_param('user', 0, PARAM_INT);
  57  
  58  $cm = get_coursemodule_from_id('lti', $cmid, 0, false, MUST_EXIST);
  59  $lti = $DB->get_record('lti', array('id' => $cm->instance), '*', MUST_EXIST);
  60  
  61  $typeid = $lti->typeid;
  62  if (empty($typeid) && ($tool = lti_get_tool_by_url_match($lti->toolurl))) {
  63      $typeid = $tool->id;
  64  }
  65  if ($typeid) {
  66      $config = lti_get_type_config($typeid);
  67      $missingtooltype = empty($config);
  68      if (!$missingtooltype) {
  69          $config = lti_get_type_type_config($typeid);
  70          if ($config->lti_ltiversion === LTI_VERSION_1P3) {
  71              if (!isset($SESSION->lti_initiatelogin_status)) {
  72                  $msgtype = 'basic-lti-launch-request';
  73                  if ($action === 'gradeReport') {
  74                      $msgtype = 'LtiSubmissionReviewRequest';
  75                  }
  76                  echo lti_initiate_login($cm->course, $cmid, $lti, $config, $msgtype, '', '', $foruserid);
  77                  exit;
  78              } else {
  79                  unset($SESSION->lti_initiatelogin_status);
  80              }
  81          }
  82      }
  83  }
  84  
  85  $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
  86  
  87  $context = context_module::instance($cm->id);
  88  
  89  require_login($course, true, $cm);
  90  require_capability('mod/lti:view', $context);
  91  
  92  if (!empty($missingtooltype)) {
  93      $PAGE->set_url(new moodle_url('/mod/lti/launch.php'));
  94      $PAGE->set_context($context);
  95      $PAGE->set_secondary_active_tab('modulepage');
  96      $PAGE->set_pagelayout('incourse');
  97      echo $OUTPUT->header();
  98      throw new moodle_exception('tooltypenotfounderror', 'mod_lti');
  99  }
 100  
 101  // Completion and trigger events.
 102  if ($triggerview) {
 103      lti_view($lti, $course, $cm, $context);
 104  }
 105  
 106  $lti->cmid = $cm->id;
 107  lti_launch_tool($lti, $foruserid);