includes/api/ApiLinkAccount.php

   1 <?php
   2 /**
   3  * Copyright © 2016 Wikimedia Foundation and contributors
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 use MediaWiki\Auth\AuthManager;
  24 use MediaWiki\Auth\AuthenticationResponse;
  25
  26 /**
  27  * Link an account with AuthManager
  28  *
  29  * @ingroup API
  30  */
  31 class ApiLinkAccount extends ApiBase {
  32
  33         public function __construct( ApiMain $main, $action ) {
  34                 parent::__construct( $main, $action, 'link' );
  35         }
  36
  37         public function getFinalDescription() {
  38                 // A bit of a hack to append 'api-help-authmanager-general-usage'
  39                 $msgs = parent::getFinalDescription();
  40                 $msgs[] = ApiBase::makeMessage( 'api-help-authmanager-general-usage', $this->getContext(), [
  41                         $this->getModulePrefix(),
  42                         $this->getModuleName(),
  43                         $this->getModulePath(),
  44                         AuthManager::ACTION_LINK,
  45                         self::needsToken(),
  46                 ] );
  47                 return $msgs;
  48         }
  49
  50         public function execute() {
  51                 if ( !$this->getUser()->isLoggedIn() ) {
  52                         $this->dieWithError( 'apierror-mustbeloggedin-linkaccounts', 'notloggedin' );
  53                 }
  54
  55                 $params = $this->extractRequestParams();
  56
  57                 $this->requireAtLeastOneParameter( $params, 'continue', 'returnurl' );
  58
  59                 if ( $params['returnurl'] !== null ) {
  60                         $bits = wfParseUrl( $params['returnurl'] );
  61                         if ( !$bits || $bits['scheme'] === '' ) {
  62                                 $encParamName = $this->encodeParamName( 'returnurl' );
  63                                 $this->dieWithError(
  64                                         [ 'apierror-badurl', $encParamName, wfEscapeWikiText( $params['returnurl'] ) ],
  65                                         "badurl_{$encParamName}"
  66                                 );
  67                         }
  68                 }
  69
  70                 $helper = new ApiAuthManagerHelper( $this );
  71                 $manager = AuthManager::singleton();
  72
  73                 // Check security-sensitive operation status
  74                 $helper->securitySensitiveOperation( 'LinkAccounts' );
  75
  76                 // Make sure it's possible to link accounts
  77                 if ( !$manager->canLinkAccounts() ) {
  78                         $this->getResult()->addValue( null, 'linkaccount', $helper->formatAuthenticationResponse(
  79                                 AuthenticationResponse::newFail( $this->msg( 'userlogin-cannot-' . AuthManager::ACTION_LINK ) )
  80                         ) );
  81                         return;
  82                 }
  83
  84                 // Perform the link step
  85                 if ( $params['continue'] ) {
  86                         $reqs = $helper->loadAuthenticationRequests( AuthManager::ACTION_LINK_CONTINUE );
  87                         $res = $manager->continueAccountLink( $reqs );
  88                 } else {
  89                         $reqs = $helper->loadAuthenticationRequests( AuthManager::ACTION_LINK );
  90                         $res = $manager->beginAccountLink( $this->getUser(), $reqs, $params['returnurl'] );
  91                 }
  92
  93                 $this->getResult()->addValue( null, 'linkaccount',
  94                         $helper->formatAuthenticationResponse( $res ) );
  95         }
  96
  97         public function isReadMode() {
  98                 return false;
  99         }
 100
 101         public function isWriteMode() {
 102                 return true;
 103         }
 104
 105         public function needsToken() {
 106                 return 'csrf';
 107         }
 108
 109         public function getAllowedParams() {
 110                 return ApiAuthManagerHelper::getStandardParams( AuthManager::ACTION_LINK,
 111                         'requests', 'messageformat', 'mergerequestfields', 'returnurl', 'continue'
 112                 );
 113         }
 114
 115         public function dynamicParameterDocumentation() {
 116                 return [ 'api-help-authmanagerhelper-additional-params', AuthManager::ACTION_LINK ];
 117         }
 118
 119         protected function getExamplesMessages() {
 120                 return [
 121                         'action=linkaccount&provider=Example&linkreturnurl=http://example.org/&linktoken=123ABC'
 122                                 => 'apihelp-linkaccount-example-link',
 123                 ];
 124         }
 125
 126         public function getHelpUrls() {
 127                 return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Linkaccount';
 128         }
 129 }