src/Module/OAuth/Authorize.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Module\OAuth;
  23
  24 use Friendica\Core\Logger;
  25 use Friendica\DI;
  26 use Friendica\Module\BaseApi;
  27
  28 /**
  29  * @see https://docs.joinmastodon.org/spec/oauth/
  30  * @see https://aaronparecki.com/oauth-2-simplified/
  31  */
  32 class Authorize extends BaseApi
  33 {
  34         /**
  35          * @param array $parameters
  36          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  37          */
  38         public static function rawContent(array $parameters = [])
  39         {
  40                 $response_type = $_REQUEST['response_type'] ?? '';
  41                 $client_id     = $_REQUEST['client_id'] ?? '';
  42                 $client_secret = $_REQUEST['client_secret'] ?? ''; // Isn't normally provided. We will use it if present.
  43                 $redirect_uri  = $_REQUEST['redirect_uri'] ?? '';
  44                 $scope         = $_REQUEST['scope'] ?? 'read';
  45                 $state         = $_REQUEST['state'] ?? '';
  46
  47                 if ($response_type != 'code') {
  48                         Logger::warning('Unsupported or missing response type', ['request' => $_REQUEST]);
  49                         DI::mstdnError()->UnprocessableEntity(DI::l10n()->t('Unsupported or missing response type'));
  50                 }
  51
  52                 if (empty($client_id) || empty($redirect_uri)) {
  53                         Logger::warning('Incomplete request data', ['request' => $_REQUEST]);
  54                         DI::mstdnError()->UnprocessableEntity(DI::l10n()->t('Incomplete request data'));
  55                 }
  56
  57                 $application = self::getApplication($client_id, $client_secret, $redirect_uri);
  58                 if (empty($application)) {
  59                         DI::mstdnError()->UnprocessableEntity();
  60                 }
  61
  62                 // @todo Compare the application scope and requested scope
  63
  64                 $request = $_REQUEST;
  65                 unset($request['pagename']);
  66                 $redirect = 'oauth/authorize?' . http_build_query($request);
  67
  68                 $uid = local_user();
  69                 if (empty($uid)) {
  70                         Logger::info('Redirect to login');
  71                         DI::app()->redirect('login?return_path=' . urlencode($redirect));
  72                 } else {
  73                         Logger::info('Already logged in user', ['uid' => $uid]);
  74                 }
  75
  76                 if (!self::existsTokenForUser($application, $uid) && !DI::session()->get('oauth_acknowledge')) {
  77                         Logger::info('Redirect to acknowledge');
  78                         DI::app()->redirect('oauth/acknowledge?' . http_build_query(['return_path' => $redirect, 'application' => $application['name']]));
  79                 }
  80
  81                 DI::session()->remove('oauth_acknowledge');
  82
  83                 $token = self::createTokenForUser($application, $uid, $scope);
  84                 if (!$token) {
  85                         DI::mstdnError()->UnprocessableEntity();
  86                 }
  87
  88                 DI::app()->redirect($application['redirect_uri'] . (strpos($application['redirect_uri'], '?') ? '&' : '?') . http_build_query(['code' => $token['code'], 'state' => $state]));
  89         }
  90 }