Claude Vervoort
52 lines
1.7 KiB
PHP
52 lines
1.7 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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require_once(__DIR__ . '/../../config.php');
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require_once($CFG->libdir.'/weblib.php');
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require_login();
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$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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$now = time();
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$token = [
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"sub" => random_string(15),
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"scope" => "reg",
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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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