auth/oauth2/login.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  * Open ID authentication. This file is a simple login entry point for OAuth identity providers.
  19  *
  20  * @package auth_oauth2
  21  * @copyright 2017 Damyon Wiese
  22  * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
  23  */
  24
  25 require_once('../../config.php');
  26
  27 $issuerid = required_param('id', PARAM_INT);
  28 $wantsurl = new moodle_url(optional_param('wantsurl', '', PARAM_URL));
  29
  30 $PAGE->set_context(context_system::instance());
  31 $PAGE->set_url(new moodle_url('/auth/oauth2/login.php', ['id' => $issuerid]));
  32
  33 require_sesskey();
  34
  35 if (!\auth_oauth2\api::is_enabled()) {
  36     throw new \moodle_exception('notenabled', 'auth_oauth2');
  37 }
  38
  39 $issuer = new \core\oauth2\issuer($issuerid);
  40 if (!$issuer->is_available_for_login()) {
  41     throw new \moodle_exception('issuernologin', 'auth_oauth2');
  42 }
  43
  44 $returnparams = ['wantsurl' => $wantsurl, 'sesskey' => sesskey(), 'id' => $issuerid];
  45 $returnurl = new moodle_url('/auth/oauth2/login.php', $returnparams);
  46
  47 $client = \core\oauth2\api::get_user_oauth_client($issuer, $returnurl);
  48
  49 if ($client) {
  50     if (!$client->is_logged_in()) {
  51         redirect($client->get_login_url());
  52     }
  53
  54     $auth = new \auth_oauth2\auth();
  55     $auth->complete_login($client, $wantsurl);
  56 } else {
  57     throw new moodle_exception('Could not get an OAuth client.');
  58 }
  59