badges/backpack-connect.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Connect to backpack site.
  19  *
  20  * @package    core_badges
  21  * @copyright  2020 Tung Thai
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  * @author     Tung Thai <Tung.ThaiDuc@nashtechglobal.com>
  24  */
  25
  26 require_once(__DIR__ . '/../config.php');
  27 require_once($CFG->libdir . '/badgeslib.php');
  28
  29 $backpackid = required_param('backpackid', PARAM_INT);
  30 $scope = optional_param('scope', '', PARAM_RAW);
  31 $action = optional_param('action', null, PARAM_RAW);
  32
  33 if (badges_open_badges_backpack_api($backpackid) != OPEN_BADGES_V2P1) {
  34     throw new coding_exception('backpacks only support Open Badges V2.1');
  35 }
  36
  37 require_login();
  38
  39 $externalbackpack = badges_get_site_backpack($backpackid);
  40 $persistedissuer = \core\oauth2\issuer::get_record(['id' => $externalbackpack->oauth2_issuerid]);
  41 if ($persistedissuer) {
  42     $issuer = new \core\oauth2\issuer($externalbackpack->oauth2_issuerid);
  43     $returnurl = new moodle_url('/badges/backpack-connect.php',
  44         ['action' => 'authorization', 'sesskey' => sesskey(), 'backpackid' => $backpackid]);
  45
  46     // If scope is not passed as parameter, use the issuer supported scopes.
  47     if (empty($scope)) {
  48         $scope = $issuer->get('scopessupported');
  49     }
  50     $client = new core_badges\oauth2\client($issuer, $returnurl, $scope, $externalbackpack);
  51     if ($client) {
  52         if (!$client->is_logged_in()) {
  53             redirect($client->get_login_url());
  54         }
  55         $wantsurl = new moodle_url('/badges/mybadges.php');
  56         $auth = new \core_badges\oauth2\auth();
  57         $auth->complete_data($client, $wantsurl);
  58     } else {
  59         throw new moodle_exception('Could not get an OAuth client.');
  60     }
  61 } else {
  62     throw new moodle_exception('Unknown OAuth client.');
  63 }