mirror of
https://github.com/moodle/moodle.git
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81 lines
3.0 KiB
PHP
81 lines
3.0 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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* Redirect the user to registration with token and openid config url as query params.
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*
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* @package mod_lti
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* @copyright 2020 Cengage
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* @author Claude Vervoort
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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 Firebase\JWT\JWT;
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use mod_lti\local\ltiopenid\jwks_helper;
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use mod_lti\local\ltiopenid\registration_helper;
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require_once(__DIR__ . '/../../config.php');
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require_once($CFG->libdir.'/weblib.php');
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require_once($CFG->dirroot . '/mod/lti/locallib.php');
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require_login();
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$context = context_system::instance();
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require_capability('moodle/site:config', $context);
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$starturl = required_param('url', PARAM_URL);
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$typeid = optional_param('type', -1, PARAM_INT);
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$types = lti_get_tools_by_url($starturl, null);
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if (!empty($types) && $typeid == -1) {
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// There are matching types for the registration domain, let's prompt the user to upgrade.
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$pageurl = new moodle_url('/mod/lti/startltiadvregistration.php');
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$PAGE->set_context($context);
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$PAGE->set_url($pageurl);
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$PAGE->set_pagelayout('maintenance');
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$output = $PAGE->get_renderer('mod_lti');
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$page = new \mod_lti\output\registration_upgrade_choice_page($types, $starturl);
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echo $output->header();
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echo $output->render($page);
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echo $output->footer();
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} else {
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// Let's actually start the registration process by launching the tool registration
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// endpoint with the registration token and the site config url.
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require_sesskey();
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$sub = registration_helper::get()->new_clientid();
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$scope = registration_helper::REG_TOKEN_OP_NEW_REG;
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if ($typeid > 0) {
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// In the context of an update, the sub is the id of the type.
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$sub = strval($typeid);
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$scope = registration_helper::REG_TOKEN_OP_UPDATE_REG;
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}
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$now = time();
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$token = [
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"sub" => $sub,
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"scope" => $scope,
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"iat" => $now,
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"exp" => $now + HOURSECS
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];
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$privatekey = jwks_helper::get_private_key();
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$regtoken = JWT::encode($token, $privatekey['key'], 'RS256', $privatekey['kid']);
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$confurl = new moodle_url('/mod/lti/openid-configuration.php');
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$url = new moodle_url($starturl);
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$url->param('openid_configuration', $confurl->out(false));
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$url->param('registration_token', $regtoken);
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header("Location: ".$url->out(false));
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}
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