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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
  • Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
  • PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Handles LTI 1.3 deep linking launches.
 *
 * There are 2 pathways through this page:
 * 1. When first making a deep linking launch from the platform. The launch data is cached at this point, pending user
 * authentication, and the page is set such that the post-authentication redirect will return here.
 * 2. The post-authentication redirect. The launch data is fetched from the session launch cache, and the resource
 * selection view is rendered.
 *
 * @package    enrol_lti
 * @copyright  2021 Jake Dallimore <jrhdallimore@gmail.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

< use enrol_lti\local\ltiadvantage\lib\http_client;
> use core\http_client;
use enrol_lti\local\ltiadvantage\lib\issuer_database; use enrol_lti\local\ltiadvantage\lib\launch_cache_session; use enrol_lti\local\ltiadvantage\repository\application_registration_repository; use enrol_lti\local\ltiadvantage\repository\deployment_repository; use enrol_lti\local\ltiadvantage\repository\published_resource_repository; use Packback\Lti1p3\ImsStorage\ImsCookie; use Packback\Lti1p3\LtiMessageLaunch; use Packback\Lti1p3\LtiServiceConnector; require_once(__DIR__ . '/../../config.php'); global $OUTPUT, $PAGE, $CFG; require_once($CFG->libdir . '/filelib.php'); $idtoken = optional_param('id_token', null, PARAM_RAW); $launchid = optional_param('launchid', null, PARAM_RAW); if (!is_enabled_auth('lti')) { throw new moodle_exception('pluginnotenabled', 'auth', '', get_string('pluginname', 'auth_lti')); } if (!enrol_is_enabled('lti')) { throw new moodle_exception('enrolisdisabled', 'enrol_lti'); } if (empty($idtoken) && empty($launchid)) { throw new coding_exception('Error: launch requires id_token'); } // First launch from the platform: get launch data and cache it in case the user's not authenticated. $sesscache = new launch_cache_session(); $issdb = new issuer_database(new application_registration_repository(), new deployment_repository()); $cookie = new ImsCookie();
< $serviceconnector = new LtiServiceConnector($sesscache, new http_client(new curl()));
> $serviceconnector = new LtiServiceConnector($sesscache, new http_client());
if ($idtoken) { $messagelaunch = LtiMessageLaunch::new($issdb, $sesscache, $cookie, $serviceconnector) ->validate(); } if ($launchid) { $messagelaunch = LtiMessageLaunch::fromCache($launchid, $issdb, $sesscache, $serviceconnector); } if (empty($messagelaunch)) { throw new moodle_exception('Bad launch. Deep linking launch data could not be found'); } // Authenticate the instructor. // Deep linking cannot use resource-specific provisioning modes, so it just uses a sensible 'existing accounts only' mode. $auth = get_auth_plugin('lti'); $auth->complete_login( $messagelaunch->getLaunchData(), new moodle_url('/enrol/lti/launch_deeplink.php', ['launchid' => $messagelaunch->getLaunchId()]), auth_plugin_lti::PROVISIONING_MODE_PROMPT_EXISTING_ONLY ); require_login(null, false); global $USER, $CFG; $PAGE->set_context(context_system::instance()); $url = new moodle_url('/enrol/lti/launch_deeplink.php'); $PAGE->set_url($url); $PAGE->set_pagelayout('popup'); $PAGE->set_title(get_string('opentool', 'enrol_lti')); // Get all the published_resource view objects and render them for selection. global $USER; $resourcerepo = new published_resource_repository(); $resources = $resourcerepo->find_all_for_user($USER->id); $renderer = $PAGE->get_renderer('enrol_lti'); echo $OUTPUT->header(); echo $renderer->render_published_resource_selection_view($messagelaunch, $resources); echo $OUTPUT->footer();