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<?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/>.
/**
* Verify authorization callback.
*
* @package core_badges
* @copyright 2020 Tung Thai
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @author Tung Thai <Tung.ThaiDuc@nashtechglobal.com>
*/
require_once(__DIR__ . '/../config.php');
$error = optional_param('error', '', PARAM_RAW);
if ($error) {
$message = optional_param('error_description', '', PARAM_RAW);
if ($message) {
print_error($message);
} else {
print_error($error);
}
die();
}
require_login();
// The authorization code generated by the authorization server.
$code = required_param('code', PARAM_RAW);
$scope = required_param('scope', PARAM_RAW);
// The state parameter we've given (used in moodle as a redirect url).
$state = required_param('state', PARAM_LOCALURL);
$redirecturl = new moodle_url($state);
$params = $redirecturl->params();
if (isset($params['sesskey']) and confirm_sesskey($params['sesskey'])) {
$redirecturl->param('oauth2code', $code);
$redirecturl->param('scope', $scope);
redirect($redirecturl);
} else {
print_error('invalidsesskey');
}