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Differences Between: [Versions 400 and 402] [Versions 401 and 402]

   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 core\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());
  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