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See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
<?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/>.

/**
 * Serve assertion JSON by unique hash of issued badge
 *
 * @package    core
 * @subpackage badges
 * @copyright  2012 onwards Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @author     Yuliya Bozhko <yuliya.bozhko@totaralms.com>
 */

define('AJAX_SCRIPT', true);
define('NO_MOODLE_COOKIES', true); // No need for a session here.

require_once(__DIR__ . '/../config.php');
require_once($CFG->libdir . '/badgeslib.php');

if (empty($CFG->enablebadges)) {
< print_error('badgesdisabled', 'badges');
> throw new \moodle_exception('badgesdisabled', 'badges');
} $hash = required_param('b', PARAM_ALPHANUM); // Issued badge unique hash for badge assertion. $action = optional_param('action', null, PARAM_BOOL); // Generates badge class if true. // OB specification version. If it's not defined, the site will be used as default. $obversion = optional_param('obversion', badges_open_badges_backpack_api(), PARAM_INT); $assertion = new core_badges_assertion($hash, $obversion); if (!is_null($action)) { // Get badge class or issuer information depending on $action. $json = ($action) ? $assertion->get_badge_class() : $assertion->get_issuer(); } else { // Otherwise, get badge assertion. $column = $DB->sql_compare_text('uniquehash', 255); if ($DB->record_exists_sql(sprintf('SELECT * FROM {badge_issued} WHERE %s = ?', $column), array($hash))) { $json = $assertion->get_badge_assertion(); } else { // Revoked badge. header("HTTP/1.0 410 Gone"); $assertion = array(); if ($obversion >= OPEN_BADGES_V2) { $assertionurl = new moodle_url('/badges/assertion.php', array('b' => $hash)); $assertion['id'] = $assertionurl->out(); } $assertion['revoked'] = true; echo json_encode($assertion); die(); } } echo $OUTPUT->header(); echo json_encode($json);