enrol/lti/configure.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  * Returns the deep link resource via a POST to the platform.
  19  *
  20  * @package     enrol_lti
  21  * @copyright   2021 Jake Dallimore <jrhdallimore@gmail.com>
  22  * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 use enrol_lti\local\ltiadvantage\lib\http_client;
  26 use enrol_lti\local\ltiadvantage\lib\launch_cache_session;
  27 use enrol_lti\local\ltiadvantage\lib\issuer_database;
  28 use enrol_lti\local\ltiadvantage\repository\application_registration_repository;
  29 use enrol_lti\local\ltiadvantage\repository\deployment_repository;
  30 use enrol_lti\local\ltiadvantage\repository\published_resource_repository;
  31 use Packback\Lti1p3\ImsStorage\ImsCookie;
  32 use Packback\Lti1p3\LtiDeepLinkResource;
  33 use Packback\Lti1p3\LtiLineitem;
  34 use Packback\Lti1p3\LtiMessageLaunch;
  35 use Packback\Lti1p3\LtiServiceConnector;
  36
  37 require(__DIR__.'/../../config.php');
  38 require_once(__DIR__.'/lib.php');
  39 global $CFG, $DB, $PAGE, $USER;
  40 require_once($CFG->libdir . '/filelib.php');
  41 require_login(null, false);
  42
  43 confirm_sesskey();
  44 $launchid = required_param('launchid', PARAM_TEXT);
  45 $modules = optional_param_array('modules', [], PARAM_INT);
  46 $grades = optional_param_array('grades', [], PARAM_INT);
  47
  48 $sesscache = new launch_cache_session();
  49 $issdb = new issuer_database(new application_registration_repository(), new deployment_repository());
  50 $cookie = new ImsCookie();
  51 $serviceconnector = new LtiServiceConnector($sesscache, new http_client(new curl()));
  52 $messagelaunch = LtiMessageLaunch::fromCache($launchid, $issdb, $sesscache, $serviceconnector);
  53
  54 if (!$messagelaunch->isDeepLinkLaunch()) {
  55     throw new coding_exception('Configuration can only be accessed as part of a content item selection deep link '.
  56         'launch.');
  57 }
  58 $sesscache->purge();
  59
  60 // Get the selected resources and create the resource link content items to post back.
  61 $resourcerepo = new published_resource_repository();
  62 $resources = $resourcerepo->find_all_by_ids_for_user($modules, $USER->id);
  63
  64 $contentitems = [];
  65 foreach ($resources as $resource) {
  66
  67     $contentitem = LtiDeepLinkResource::new()
  68         ->setUrl($CFG->wwwroot . '/enrol/lti/launch.php')
  69         ->setCustomParams(['id' => $resource->get_uuid()])
  70         ->setTitle($resource->get_name());
  71
  72     // If the activity supports grading, and the user has selected it, then include line item information.
  73     if ($resource->supports_grades() && in_array($resource->get_id(), $grades)) {
  74         require_once($CFG->libdir . '/gradelib.php');
  75
  76         $lineitem = LtiLineitem::new()
  77             ->setScoreMaximum($resource->get_grademax())
  78             ->setResourceId($resource->get_uuid());
  79
  80         $contentitem->setLineitem($lineitem);
  81     }
  82
  83     $contentitems[] = $contentitem;
  84 }
  85
  86
  87 global $USER, $CFG, $OUTPUT;
  88 $PAGE->set_context(context_system::instance());
  89 $url = new moodle_url('/enrol/lti/configure.php');
  90 $PAGE->set_url($url);
  91 $PAGE->set_pagelayout('popup');
  92 echo $OUTPUT->header();
  93 $dl = $messagelaunch->getDeepLink();
  94 $dl->outputResponseForm($contentitems);
  95