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51ec496f75
This patch adds some changes to guarantee that OpenBadges 2.1 (OBv2.1) will return always the same JSON format that OBv2.0 (because the only difference between both versions it's the BadgeConnect API).
67 lines
2.5 KiB
PHP
67 lines
2.5 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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* Serve assertion JSON by unique hash of issued badge
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*
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* @package core
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* @subpackage badges
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* @copyright 2012 onwards Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @author Yuliya Bozhko <yuliya.bozhko@totaralms.com>
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*/
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define('AJAX_SCRIPT', true);
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define('NO_MOODLE_COOKIES', true); // No need for a session here.
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require_once(__DIR__ . '/../config.php');
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require_once($CFG->libdir . '/badgeslib.php');
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if (empty($CFG->enablebadges)) {
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print_error('badgesdisabled', 'badges');
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}
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$hash = required_param('b', PARAM_ALPHANUM); // Issued badge unique hash for badge assertion.
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$action = optional_param('action', null, PARAM_BOOL); // Generates badge class if true.
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// OB specification version. If it's not defined, the site will be used as default.
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$obversion = optional_param('obversion', badges_open_badges_backpack_api(), PARAM_INT);
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$assertion = new core_badges_assertion($hash, $obversion);
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if (!is_null($action)) {
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// Get badge class or issuer information depending on $action.
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$json = ($action) ? $assertion->get_badge_class() : $assertion->get_issuer();
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} else {
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// Otherwise, get badge assertion.
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$column = $DB->sql_compare_text('uniquehash', 255);
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if ($DB->record_exists_sql(sprintf('SELECT * FROM {badge_issued} WHERE %s = ?', $column), array($hash))) {
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$json = $assertion->get_badge_assertion();
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} else { // Revoked badge.
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header("HTTP/1.0 410 Gone");
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$assertion = array();
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if ($obversion >= OPEN_BADGES_V2) {
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$assertionurl = new moodle_url('/badges/assertion.php', array('b' => $hash));
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$assertion['id'] = $assertionurl->out();
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}
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$assertion['revoked'] = true;
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echo json_encode($assertion);
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die();
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}
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}
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echo $OUTPUT->header();
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echo json_encode($json);
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