includes/api/ApiLogin.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on Sep 19, 2006
   6  *
   7  * Copyright © 2006-2007 Yuri Astrakhan "<Firstname><Lastname>@gmail.com",
   8  * Daniel Cannon (cannon dot danielc at gmail dot com)
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  23  * http://www.gnu.org/copyleft/gpl.html
  24  *
  25  * @file
  26  */
  27
  28 use MediaWiki\Auth\AuthManager;
  29 use MediaWiki\Auth\AuthenticationRequest;
  30 use MediaWiki\Auth\AuthenticationResponse;
  31 use MediaWiki\Logger\LoggerFactory;
  32
  33 /**
  34  * Unit to authenticate log-in attempts to the current wiki.
  35  *
  36  * @ingroup API
  37  */
  38 class ApiLogin extends ApiBase {
  39
  40         public function __construct( ApiMain $main, $action ) {
  41                 parent::__construct( $main, $action, 'lg' );
  42         }
  43
  44         protected function getDescriptionMessage() {
  45                 if ( $this->getConfig()->get( 'DisableAuthManager' ) ) {
  46                         return 'apihelp-login-description-nonauthmanager';
  47                 } elseif ( $this->getConfig()->get( 'EnableBotPasswords' ) ) {
  48                         return 'apihelp-login-description';
  49                 } else {
  50                         return 'apihelp-login-description-nobotpasswords';
  51                 }
  52         }
  53
  54         /**
  55          * Executes the log-in attempt using the parameters passed. If
  56          * the log-in succeeds, it attaches a cookie to the session
  57          * and outputs the user id, username, and session token. If a
  58          * log-in fails, as the result of a bad password, a nonexistent
  59          * user, or any other reason, the host is cached with an expiry
  60          * and no log-in attempts will be accepted until that expiry
  61          * is reached. The expiry is $this->mLoginThrottle.
  62          */
  63         public function execute() {
  64                 // If we're in a mode that breaks the same-origin policy, no tokens can
  65                 // be obtained
  66                 if ( $this->lacksSameOriginSecurity() ) {
  67                         $this->getResult()->addValue( null, 'login', [
  68                                 'result' => 'Aborted',
  69                                 'reason' => 'Cannot log in when the same-origin policy is not applied',
  70                         ] );
  71
  72                         return;
  73                 }
  74
  75                 $params = $this->extractRequestParams();
  76
  77                 $result = [];
  78
  79                 // Make sure session is persisted
  80                 $session = MediaWiki\Session\SessionManager::getGlobalSession();
  81                 $session->persist();
  82
  83                 // Make sure it's possible to log in
  84                 if ( !$session->canSetUser() ) {
  85                         $this->getResult()->addValue( null, 'login', [
  86                                 'result' => 'Aborted',
  87                                 'reason' => 'Cannot log in when using ' .
  88                                         $session->getProvider()->describe( Language::factory( 'en' ) ),
  89                         ] );
  90
  91                         return;
  92                 }
  93
  94                 $authRes = false;
  95                 $context = new DerivativeContext( $this->getContext() );
  96                 $loginType = 'N/A';
  97
  98                 // Check login token
  99                 $token = $session->getToken( '', 'login' );
 100                 if ( $token->wasNew() || !$params['token'] ) {
 101                         $authRes = 'NeedToken';
 102                 } elseif ( !$token->match( $params['token'] ) ) {
 103                         $authRes = 'WrongToken';
 104                 }
 105
 106                 // Try bot passwords
 107                 if ( $authRes === false && $this->getConfig()->get( 'EnableBotPasswords' ) &&
 108                         strpos( $params['name'], BotPassword::getSeparator() ) !== false
 109                 ) {
 110                         $status = BotPassword::login(
 111                                 $params['name'], $params['password'], $this->getRequest()
 112                         );
 113                         if ( $status->isOK() ) {
 114                                 $session = $status->getValue();
 115                                 $authRes = 'Success';
 116                                 $loginType = 'BotPassword';
 117                         } else {
 118                                 $authRes = 'Failed';
 119                                 $message = $status->getMessage();
 120                                 LoggerFactory::getInstance( 'authmanager' )->info(
 121                                         'BotPassword login failed: ' . $status->getWikiText( false, false, 'en' )
 122                                 );
 123                         }
 124                 }
 125
 126                 if ( $authRes === false ) {
 127                         if ( $this->getConfig()->get( 'DisableAuthManager' ) ) {
 128                                 // Non-AuthManager login
 129                                 $context->setRequest( new DerivativeRequest(
 130                                         $this->getContext()->getRequest(),
 131                                         [
 132                                                 'wpName' => $params['name'],
 133                                                 'wpPassword' => $params['password'],
 134                                                 'wpDomain' => $params['domain'],
 135                                                 'wpLoginToken' => $params['token'],
 136                                                 'wpRemember' => ''
 137                                         ]
 138                                 ) );
 139                                 $loginForm = new LoginForm();
 140                                 $loginForm->setContext( $context );
 141                                 $authRes = $loginForm->authenticateUserData();
 142                                 $loginType = 'LoginForm';
 143
 144                                 switch ( $authRes ) {
 145                                         case LoginForm::SUCCESS:
 146                                                 $authRes = 'Success';
 147                                                 break;
 148                                         case LoginForm::NEED_TOKEN:
 149                                                 $authRes = 'NeedToken';
 150                                                 break;
 151                                 }
 152                         } else {
 153                                 // Simplified AuthManager login, for backwards compatibility
 154                                 $manager = AuthManager::singleton();
 155                                 $reqs = AuthenticationRequest::loadRequestsFromSubmission(
 156                                         $manager->getAuthenticationRequests( AuthManager::ACTION_LOGIN, $this->getUser() ),
 157                                         [
 158                                                 'username' => $params['name'],
 159                                                 'password' => $params['password'],
 160                                                 'domain' => $params['domain'],
 161                                                 'rememberMe' => true,
 162                                         ]
 163                                 );
 164                                 $res = AuthManager::singleton()->beginAuthentication( $reqs, 'null:' );
 165                                 switch ( $res->status ) {
 166                                         case AuthenticationResponse::PASS:
 167                                                 if ( $this->getConfig()->get( 'EnableBotPasswords' ) ) {
 168                                                         $warn = 'Main-account login via action=login is deprecated and may stop working ' .
 169                                                                 'without warning.';
 170                                                         $warn .= ' To continue login with action=login, see [[Special:BotPasswords]].';
 171                                                         $warn .= ' To safely continue using main-account login, see action=clientlogin.';
 172                                                 } else {
 173                                                         $warn = 'Login via action=login is deprecated and may stop working without warning.';
 174                                                         $warn .= ' To safely log in, see action=clientlogin.';
 175                                                 }
 176                                                 $this->setWarning( $warn );
 177                                                 $authRes = 'Success';
 178                                                 $loginType = 'AuthManager';
 179                                                 break;
 180
 181                                         case AuthenticationResponse::FAIL:
 182                                                 // Hope it's not a PreAuthenticationProvider that failed...
 183                                                 $authRes = 'Failed';
 184                                                 $message = $res->message;
 185                                                 \MediaWiki\Logger\LoggerFactory::getInstance( 'authentication' )
 186                                                         ->info( __METHOD__ . ': Authentication failed: ' . $message->plain() );
 187                                                 break;
 188
 189                                         default:
 190                                                 $authRes = 'Aborted';
 191                                                 break;
 192                                 }
 193                         }
 194                 }
 195
 196                 $result['result'] = $authRes;
 197                 switch ( $authRes ) {
 198                         case 'Success':
 199                                 if ( $this->getConfig()->get( 'DisableAuthManager' ) ) {
 200                                         $user = $context->getUser();
 201                                         $this->getContext()->setUser( $user );
 202                                         $user->setCookies( $this->getRequest(), null, true );
 203                                 } else {
 204                                         $user = $session->getUser();
 205                                 }
 206
 207                                 ApiQueryInfo::resetTokenCache();
 208
 209                                 // Deprecated hook
 210                                 $injected_html = '';
 211                                 Hooks::run( 'UserLoginComplete', [ &$user, &$injected_html, true ] );
 212
 213                                 $result['lguserid'] = intval( $user->getId() );
 214                                 $result['lgusername'] = $user->getName();
 215
 216                                 // @todo: These are deprecated, and should be removed at some
 217                                 // point (1.28 at the earliest, and see T121527). They were ok
 218                                 // when the core cookie-based login was the only thing, but
 219                                 // CentralAuth broke that a while back and
 220                                 // SessionManager/AuthManager *really* break it.
 221                                 $result['lgtoken'] = $user->getToken();
 222                                 $result['cookieprefix'] = $this->getConfig()->get( 'CookiePrefix' );
 223                                 $result['sessionid'] = $session->getId();
 224                                 break;
 225
 226                         case 'NeedToken':
 227                                 $result['token'] = $token->toString();
 228                                 $this->setWarning( 'Fetching a token via action=login is deprecated. ' .
 229                                    'Use action=query&meta=tokens&type=login instead.' );
 230                                 $this->logFeatureUsage( 'action=login&!lgtoken' );
 231
 232                                 // @todo: See above about deprecation
 233                                 $result['cookieprefix'] = $this->getConfig()->get( 'CookiePrefix' );
 234                                 $result['sessionid'] = $session->getId();
 235                                 break;
 236
 237                         case 'WrongToken':
 238                                 break;
 239
 240                         case 'Failed':
 241                                 $result['reason'] = $message->useDatabase( 'false' )->inLanguage( 'en' )->text();
 242                                 break;
 243
 244                         case 'Aborted':
 245                                 $result['reason'] = 'Authentication requires user interaction, ' .
 246                                    'which is not supported by action=login.';
 247                                 if ( $this->getConfig()->get( 'EnableBotPasswords' ) ) {
 248                                         $result['reason'] .= ' To be able to login with action=login, see [[Special:BotPasswords]].';
 249                                         $result['reason'] .= ' To continue using main-account login, see action=clientlogin.';
 250                                 } else {
 251                                         $result['reason'] .= ' To log in, see action=clientlogin.';
 252                                 }
 253                                 break;
 254
 255                         // Results from LoginForm for when $wgDisableAuthManager is true
 256                         case LoginForm::WRONG_TOKEN:
 257                                 $result['result'] = 'WrongToken';
 258                                 break;
 259
 260                         case LoginForm::NO_NAME:
 261                                 $result['result'] = 'NoName';
 262                                 break;
 263
 264                         case LoginForm::ILLEGAL:
 265                                 $result['result'] = 'Illegal';
 266                                 break;
 267
 268                         case LoginForm::WRONG_PLUGIN_PASS:
 269                                 $result['result'] = 'WrongPluginPass';
 270                                 break;
 271
 272                         case LoginForm::NOT_EXISTS:
 273                                 $result['result'] = 'NotExists';
 274                                 break;
 275
 276                         // bug 20223 - Treat a temporary password as wrong. Per SpecialUserLogin:
 277                         // The e-mailed temporary password should not be used for actual logins.
 278                         case LoginForm::RESET_PASS:
 279                         case LoginForm::WRONG_PASS:
 280                                 $result['result'] = 'WrongPass';
 281                                 break;
 282
 283                         case LoginForm::EMPTY_PASS:
 284                                 $result['result'] = 'EmptyPass';
 285                                 break;
 286
 287                         case LoginForm::CREATE_BLOCKED:
 288                                 $result['result'] = 'CreateBlocked';
 289                                 $result['details'] = 'Your IP address is blocked from account creation';
 290                                 $block = $context->getUser()->getBlock();
 291                                 if ( $block ) {
 292                                         $result = array_merge( $result, ApiQueryUserInfo::getBlockInfo( $block ) );
 293                                 }
 294                                 break;
 295
 296                         case LoginForm::THROTTLED:
 297                                 $result['result'] = 'Throttled';
 298                                 $result['wait'] = intval( $loginForm->mThrottleWait );
 299                                 break;
 300
 301                         case LoginForm::USER_BLOCKED:
 302                                 $result['result'] = 'Blocked';
 303                                 $block = User::newFromName( $params['name'] )->getBlock();
 304                                 if ( $block ) {
 305                                         $result = array_merge( $result, ApiQueryUserInfo::getBlockInfo( $block ) );
 306                                 }
 307                                 break;
 308
 309                         case LoginForm::ABORTED:
 310                                 $result['result'] = 'Aborted';
 311                                 $result['reason'] = $loginForm->mAbortLoginErrorMsg;
 312                                 break;
 313
 314                         default:
 315                                 ApiBase::dieDebug( __METHOD__, "Unhandled case value: {$authRes}" );
 316                 }
 317
 318                 $this->getResult()->addValue( null, 'login', $result );
 319
 320                 if ( $loginType === 'LoginForm' && isset( LoginForm::$statusCodes[$authRes] ) ) {
 321                         $authRes = LoginForm::$statusCodes[$authRes];
 322                 }
 323                 LoggerFactory::getInstance( 'authmanager' )->info( 'Login attempt', [
 324                         'event' => 'login',
 325                         'successful' => $authRes === 'Success',
 326                         'loginType' => $loginType,
 327                         'status' => $authRes,
 328                 ] );
 329         }
 330
 331         public function isDeprecated() {
 332                 return !$this->getConfig()->get( 'DisableAuthManager' ) &&
 333                         !$this->getConfig()->get( 'EnableBotPasswords' );
 334         }
 335
 336         public function mustBePosted() {
 337                 return true;
 338         }
 339
 340         public function isReadMode() {
 341                 return false;
 342         }
 343
 344         public function getAllowedParams() {
 345                 return [
 346                         'name' => null,
 347                         'password' => [
 348                                 ApiBase::PARAM_TYPE => 'password',
 349                         ],
 350                         'domain' => null,
 351                         'token' => [
 352                                 ApiBase::PARAM_TYPE => 'string',
 353                                 ApiBase::PARAM_REQUIRED => false, // for BC
 354                                 ApiBase::PARAM_HELP_MSG => [ 'api-help-param-token', 'login' ],
 355                         ],
 356                 ];
 357         }
 358
 359         protected function getExamplesMessages() {
 360                 return [
 361                         'action=login&lgname=user&lgpassword=password'
 362                                 => 'apihelp-login-example-gettoken',
 363                         'action=login&lgname=user&lgpassword=password&lgtoken=123ABC'
 364                                 => 'apihelp-login-example-login',
 365                 ];
 366         }
 367
 368         public function getHelpUrls() {
 369                 return 'https://www.mediawiki.org/wiki/API:Login';
 370         }
 371 }