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\Model\Post\Content;
  27 use Friendica\Module\BaseApi;
  28 use Friendica\Security\OAuth;
  29
  30 /**
  31  * @see https://docs.joinmastodon.org/spec/oauth/
  32  * @see https://aaronparecki.com/oauth-2-simplified/
  33  */
  34 class Authorize extends BaseApi
  35 {
  36         /**
  37          * @param array $parameters
  38          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  39          */
  40         public static function rawContent(array $parameters = [])
  41         {
  42                 $request = self::getRequest([
  43                         'response_type' => '',
  44                         'client_id'     => '',
  45                         'client_secret' => '', // Isn't normally provided. We will use it if present.
  46                         'redirect_uri'  => '',
  47                         'scope'         => 'read',
  48                         'state'         => '',
  49                 ]);
  50
  51                 if ($request['response_type'] != 'code') {
  52                         Logger::warning('Unsupported or missing response type', ['request' => $_REQUEST]);
  53                         DI::mstdnError()->UnprocessableEntity(DI::l10n()->t('Unsupported or missing response type'));
  54                 }
  55
  56                 if (empty($request['client_id']) || empty($request['redirect_uri'])) {
  57                         Logger::warning('Incomplete request data', ['request' => $_REQUEST]);
  58                         DI::mstdnError()->UnprocessableEntity(DI::l10n()->t('Incomplete request data'));
  59                 }
  60
  61                 $application = OAuth::getApplication($request['client_id'], $request['client_secret'], $request['redirect_uri']);
  62                 if (empty($application)) {
  63                         DI::mstdnError()->UnprocessableEntity();
  64                 }
  65
  66                 // @todo Compare the application scope and requested scope
  67
  68                 $redirect_request = $_REQUEST;
  69                 unset($redirect_request['pagename']);
  70                 $redirect = 'oauth/authorize?' . http_build_query($redirect_request);
  71
  72                 $uid = local_user();
  73                 if (empty($uid)) {
  74                         Logger::info('Redirect to login');
  75                         DI::app()->redirect('login?return_path=' . urlencode($redirect));
  76                 } else {
  77                         Logger::info('Already logged in user', ['uid' => $uid]);
  78                 }
  79
  80                 if (!OAuth::existsTokenForUser($application, $uid) && !DI::session()->get('oauth_acknowledge')) {
  81                         Logger::info('Redirect to acknowledge');
  82                         DI::app()->redirect('oauth/acknowledge?' . http_build_query(['return_path' => $redirect, 'application' => $application['name']]));
  83                 }
  84
  85                 DI::session()->remove('oauth_acknowledge');
  86
  87                 $token = OAuth::createTokenForUser($application, $uid, $request['scope']);
  88                 if (!$token) {
  89                         DI::mstdnError()->UnprocessableEntity();
  90                 }
  91
  92                 if ($application['redirect_uri'] != 'urn:ietf:wg:oauth:2.0:oob') {
  93                         DI::app()->redirect($application['redirect_uri'] . (strpos($application['redirect_uri'], '?') ? '&' : '?') . http_build_query(['code' => $token['code'], 'state' => $request['state']]));
  94                 }
  95
  96                 DI::session()->set('oauth_token_code', $token['code']);
  97         }
  98
  99         public static function content(array $parameters = [])
 100         {
 101                 $code = DI::session()->get('oauth_token_code');
 102                 DI::session()->remove('oauth_token_code');
 103
 104                 if (empty($code)) {
 105                         return '';
 106                 }
 107
 108                 return DI::l10n()->t('Please copy the following authentication code into your application and close this window: %s', $code);
 109         }
 110 }