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 use Friendica\Security\OAuth;
  28
  29 /**
  30  * @see https://docs.joinmastodon.org/spec/oauth/
  31  * @see https://aaronparecki.com/oauth-2-simplified/
  32  */
  33 class Authorize extends BaseApi
  34 {
  35         /**
  36          * @param array $parameters
  37          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  38          */
  39         public static function rawContent(array $parameters = [])
  40         {
  41                 $request = self::getRequest([
  42                         'response_type' => '',
  43                         'client_id'     => '',
  44                         'client_secret' => '', // Isn't normally provided. We will use it if present.
  45                         'redirect_uri'  => '',
  46                         'scope'         => 'read',
  47                         'state'         => '',
  48                 ]);
  49
  50                 if ($request['response_type'] != 'code') {
  51                         Logger::warning('Unsupported or missing response type', ['request' => $_REQUEST]);
  52                         DI::mstdnError()->UnprocessableEntity(DI::l10n()->t('Unsupported or missing response type'));
  53                 }
  54
  55                 if (empty($request['client_id']) || empty($request['redirect_uri'])) {
  56                         Logger::warning('Incomplete request data', ['request' => $_REQUEST]);
  57                         DI::mstdnError()->UnprocessableEntity(DI::l10n()->t('Incomplete request data'));
  58                 }
  59
  60                 $application = OAuth::getApplication($request['client_id'], $request['client_secret'], $request['redirect_uri']);
  61                 if (empty($application)) {
  62                         DI::mstdnError()->UnprocessableEntity();
  63                 }
  64
  65                 // @todo Compare the application scope and requested scope
  66
  67                 $redirect_request = $_REQUEST;
  68                 unset($redirect_request['pagename']);
  69                 $redirect = 'oauth/authorize?' . http_build_query($redirect_request);
  70
  71                 $uid = local_user();
  72                 if (empty($uid)) {
  73                         Logger::info('Redirect to login');
  74                         DI::app()->redirect('login?return_path=' . urlencode($redirect));
  75                 } else {
  76                         Logger::info('Already logged in user', ['uid' => $uid]);
  77                 }
  78
  79                 if (!OAuth::existsTokenForUser($application, $uid) && !DI::session()->get('oauth_acknowledge')) {
  80                         Logger::info('Redirect to acknowledge');
  81                         DI::app()->redirect('oauth/acknowledge?' . http_build_query(['return_path' => $redirect, 'application' => $application['name']]));
  82                 }
  83
  84                 DI::session()->remove('oauth_acknowledge');
  85
  86                 $token = OAuth::createTokenForUser($application, $uid, $request['scope']);
  87                 if (!$token) {
  88                         DI::mstdnError()->UnprocessableEntity();
  89                 }
  90
  91                 DI::app()->redirect($application['redirect_uri'] . (strpos($application['redirect_uri'], '?') ? '&' : '?') . http_build_query(['code' => $token['code'], 'state' => $request['state']]));
  92         }
  93 }