Current File : /opt/bitnami/apps/moodle/htdocs/mod__d9c9c01/lti/startltiadvregistration.php
<?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/>.
/**
* Redirect the user to registration with token and openid config url as query params.
*
* @package mod_lti
* @copyright 2020 Cengage
* @author Claude Vervoort
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
use Firebase\JWT\JWT;
use mod_lti\local\ltiopenid\jwks_helper;
require_once(__DIR__ . '/../../config.php');
require_once($CFG->libdir.'/weblib.php');
require_login();
$context = context_system::instance();
require_capability('moodle/site:config', $context);
$starturl = required_param('url', PARAM_URL);
$now = time();
$token = [
"sub" => random_string(15),
"scope" => "reg",
"iat" => $now,
"exp" => $now + HOURSECS
];
$privatekey = jwks_helper::get_private_key();
$regtoken = JWT::encode($token, $privatekey['key'], 'RS256', $privatekey['kid']);
$confurl = new moodle_url('/mod/lti/openid-configuration.php');
$url = new moodle_url($starturl);
$url->param('openid_configuration', $confurl->out(false));
$url->param('registration_token', $regtoken);
header("Location: ".$url->out(false));
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