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7560375ad6
The default implementation, previously included with the library, is no longer shipped there. Clients must provide their own implementation of the ICookie interface instead.
100 lines
4.1 KiB
PHP
100 lines
4.1 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Handles LTI 1.3 deep linking launches.
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*
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* There are 2 pathways through this page:
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* 1. When first making a deep linking launch from the platform. The launch data is cached at this point, pending user
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* authentication, and the page is set such that the post-authentication redirect will return here.
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* 2. The post-authentication redirect. The launch data is fetched from the session launch cache, and the resource
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* selection view is rendered.
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*
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* @package enrol_lti
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* @copyright 2021 Jake Dallimore <jrhdallimore@gmail.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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use core\http_client;
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use enrol_lti\local\ltiadvantage\lib\lti_cookie;
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use enrol_lti\local\ltiadvantage\lib\issuer_database;
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use enrol_lti\local\ltiadvantage\lib\launch_cache_session;
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use enrol_lti\local\ltiadvantage\repository\application_registration_repository;
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use enrol_lti\local\ltiadvantage\repository\deployment_repository;
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use enrol_lti\local\ltiadvantage\repository\published_resource_repository;
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use Packback\Lti1p3\LtiMessageLaunch;
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use Packback\Lti1p3\LtiServiceConnector;
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require_once(__DIR__ . '/../../config.php');
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global $OUTPUT, $PAGE, $CFG;
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require_once($CFG->libdir . '/filelib.php');
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$idtoken = optional_param('id_token', null, PARAM_RAW);
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$launchid = optional_param('launchid', null, PARAM_RAW);
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if (!is_enabled_auth('lti')) {
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throw new moodle_exception('pluginnotenabled', 'auth', '', get_string('pluginname', 'auth_lti'));
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}
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if (!enrol_is_enabled('lti')) {
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throw new moodle_exception('enrolisdisabled', 'enrol_lti');
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}
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if (empty($idtoken) && empty($launchid)) {
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throw new coding_exception('Error: launch requires id_token');
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}
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// First launch from the platform: get launch data and cache it in case the user's not authenticated.
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$sesscache = new launch_cache_session();
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$issdb = new issuer_database(new application_registration_repository(), new deployment_repository());
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$cookie = new lti_cookie();
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$serviceconnector = new LtiServiceConnector($sesscache, new http_client());
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if ($idtoken) {
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$messagelaunch = LtiMessageLaunch::new($issdb, $sesscache, $cookie, $serviceconnector)
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->validate();
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}
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if ($launchid) {
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$messagelaunch = LtiMessageLaunch::fromCache($launchid, $issdb, $sesscache, $serviceconnector);
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}
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if (empty($messagelaunch)) {
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throw new moodle_exception('Bad launch. Deep linking launch data could not be found');
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}
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// Authenticate the instructor.
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// Deep linking cannot use resource-specific provisioning modes, so it just uses a sensible 'existing accounts only' mode.
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$auth = get_auth_plugin('lti');
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$auth->complete_login(
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$messagelaunch->getLaunchData(),
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new moodle_url('/enrol/lti/launch_deeplink.php', ['launchid' => $messagelaunch->getLaunchId()]),
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auth_plugin_lti::PROVISIONING_MODE_PROMPT_EXISTING_ONLY
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);
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require_login(null, false);
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global $USER, $CFG;
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$PAGE->set_context(context_system::instance());
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$url = new moodle_url('/enrol/lti/launch_deeplink.php');
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$PAGE->set_url($url);
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$PAGE->set_pagelayout('popup');
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$PAGE->set_title(get_string('opentool', 'enrol_lti'));
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// Get all the published_resource view objects and render them for selection.
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global $USER;
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$resourcerepo = new published_resource_repository();
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$resources = $resourcerepo->find_all_for_user($USER->id);
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$renderer = $PAGE->get_renderer('enrol_lti');
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echo $OUTPUT->header();
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echo $renderer->render_published_resource_selection_view($messagelaunch, $resources);
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echo $OUTPUT->footer();
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