includes/specials/SpecialUserlogin.php

   1 <?php
   2 /**
   3  * Implements Special:UserLogin
   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  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * Implements Special:UserLogin
  26  *
  27  * @ingroup SpecialPage
  28  */
  29 class LoginForm extends SpecialPage {
  30
  31         const SUCCESS = 0;
  32         const NO_NAME = 1;
  33         const ILLEGAL = 2;
  34         const WRONG_PLUGIN_PASS = 3;
  35         const NOT_EXISTS = 4;
  36         const WRONG_PASS = 5;
  37         const EMPTY_PASS = 6;
  38         const RESET_PASS = 7;
  39         const ABORTED = 8;
  40         const CREATE_BLOCKED = 9;
  41         const THROTTLED = 10;
  42         const USER_BLOCKED = 11;
  43         const NEED_TOKEN = 12;
  44         const WRONG_TOKEN = 13;
  45
  46         var $mUsername, $mPassword, $mRetype, $mReturnTo, $mCookieCheck, $mPosted;
  47         var $mAction, $mCreateaccount, $mCreateaccountMail;
  48         var $mLoginattempt, $mRemember, $mEmail, $mDomain, $mLanguage;
  49         var $mSkipCookieCheck, $mReturnToQuery, $mToken, $mStickHTTPS;
  50         var $mType, $mReason, $mRealName;
  51         var $mAbortLoginErrorMsg = 'login-abort-generic';
  52         private $mLoaded = false;
  53
  54         /**
  55          * @var ExternalUser
  56          */
  57         private $mExtUser = null;
  58
  59         /**
  60          * @ var WebRequest
  61          */
  62         private $mOverrideRequest = null;
  63
  64         /**
  65          * @param WebRequest $request
  66          */
  67         public function __construct( $request = null ) {
  68                 parent::__construct( 'Userlogin' );
  69
  70                 $this->mOverrideRequest = $request;
  71         }
  72
  73         /**
  74          * Loader
  75          */
  76         function load() {
  77                 global $wgAuth, $wgHiddenPrefs, $wgEnableEmail, $wgRedirectOnLogin;
  78
  79                 if ( $this->mLoaded ) {
  80                         return;
  81                 }
  82                 $this->mLoaded = true;
  83
  84                 if ( $this->mOverrideRequest === null ) {
  85                         $request = $this->getRequest();
  86                 } else {
  87                         $request = $this->mOverrideRequest;
  88                 }
  89
  90                 $this->mType = $request->getText( 'type' );
  91                 $this->mUsername = $request->getText( 'wpName' );
  92                 $this->mPassword = $request->getText( 'wpPassword' );
  93                 $this->mRetype = $request->getText( 'wpRetype' );
  94                 $this->mDomain = $request->getText( 'wpDomain' );
  95                 $this->mReason = $request->getText( 'wpReason' );
  96                 $this->mReturnTo = $request->getVal( 'returnto' );
  97                 $this->mReturnToQuery = $request->getVal( 'returntoquery' );
  98                 $this->mCookieCheck = $request->getVal( 'wpCookieCheck' );
  99                 $this->mPosted = $request->wasPosted();
 100                 $this->mCreateaccount = $request->getCheck( 'wpCreateaccount' );
 101                 $this->mCreateaccountMail = $request->getCheck( 'wpCreateaccountMail' )
 102                                                                         && $wgEnableEmail;
 103                 $this->mLoginattempt = $request->getCheck( 'wpLoginattempt' );
 104                 $this->mAction = $request->getVal( 'action' );
 105                 $this->mRemember = $request->getCheck( 'wpRemember' );
 106                 $this->mStickHTTPS = $request->getCheck( 'wpStickHTTPS' );
 107                 $this->mLanguage = $request->getText( 'uselang' );
 108                 $this->mSkipCookieCheck = $request->getCheck( 'wpSkipCookieCheck' );
 109                 $this->mToken = ( $this->mType == 'signup' ) ? $request->getVal( 'wpCreateaccountToken' ) : $request->getVal( 'wpLoginToken' );
 110
 111                 if ( $wgRedirectOnLogin ) {
 112                         $this->mReturnTo = $wgRedirectOnLogin;
 113                         $this->mReturnToQuery = '';
 114                 }
 115
 116                 if( $wgEnableEmail ) {
 117                         $this->mEmail = $request->getText( 'wpEmail' );
 118                 } else {
 119                         $this->mEmail = '';
 120                 }
 121                 if( !in_array( 'realname', $wgHiddenPrefs ) ) {
 122                         $this->mRealName = $request->getText( 'wpRealName' );
 123                 } else {
 124                         $this->mRealName = '';
 125                 }
 126
 127                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
 128                         if ( isset( $_SESSION['wsDomain'] ) ) {
 129                                 $this->mDomain = $_SESSION['wsDomain'];
 130                         } else {
 131                                 $this->mDomain = 'invaliddomain';
 132                         }
 133                 }
 134                 $wgAuth->setDomain( $this->mDomain );
 135
 136                 # 1. When switching accounts, it sucks to get automatically logged out
 137                 # 2. Do not return to PasswordReset after a successful password change
 138                 #    but goto Wiki start page (Main_Page) instead ( bug 33997 )
 139                 $returnToTitle = Title::newFromText( $this->mReturnTo );
 140                 if( is_object( $returnToTitle ) && (
 141                         $returnToTitle->isSpecial( 'Userlogout' )
 142                         || $returnToTitle->isSpecial( 'PasswordReset' ) ) ) {
 143                         $this->mReturnTo = '';
 144                         $this->mReturnToQuery = '';
 145                 }
 146         }
 147
 148         function getDescription() {
 149                 return $this->msg( $this->getUser()->isAllowed( 'createaccount' ) ?
 150                         'userlogin' : 'userloginnocreate' )->text();
 151         }
 152
 153         public function execute( $par ) {
 154                 if ( session_id() == '' ) {
 155                         wfSetupSession();
 156                 }
 157
 158                 $this->load();
 159                 $this->setHeaders();
 160
 161                 if ( $par == 'signup' ) { # Check for [[Special:Userlogin/signup]]
 162                         $this->mType = 'signup';
 163                 }
 164
 165                 if ( !is_null( $this->mCookieCheck ) ) {
 166                         $this->onCookieRedirectCheck( $this->mCookieCheck );
 167                         return;
 168                 } elseif( $this->mPosted ) {
 169                         if( $this->mCreateaccount ) {
 170                                 return $this->addNewAccount();
 171                         } elseif ( $this->mCreateaccountMail ) {
 172                                 return $this->addNewAccountMailPassword();
 173                         } elseif ( ( 'submitlogin' == $this->mAction ) || $this->mLoginattempt ) {
 174                                 return $this->processLogin();
 175                         }
 176                 }
 177                 $this->mainLoginForm( '' );
 178         }
 179
 180         /**
 181          * @private
 182          */
 183         function addNewAccountMailPassword() {
 184                 if ( $this->mEmail == '' ) {
 185                         $this->mainLoginForm( $this->msg( 'noemailcreate' )->escaped() );
 186                         return;
 187                 }
 188
 189                 $u = $this->addNewaccountInternal();
 190
 191                 if ( $u == null ) {
 192                         return;
 193                 }
 194
 195                 // Wipe the initial password and mail a temporary one
 196                 $u->setPassword( null );
 197                 $u->saveSettings();
 198                 $result = $this->mailPasswordInternal( $u, false, 'createaccount-title', 'createaccount-text' );
 199
 200                 wfRunHooks( 'AddNewAccount', array( $u, true ) );
 201                 $u->addNewUserLogEntry( true, $this->mReason );
 202
 203                 $out = $this->getOutput();
 204                 $out->setPageTitle( $this->msg( 'accmailtitle' ) );
 205
 206                 if( !$result->isGood() ) {
 207                         $this->mainLoginForm( $this->msg( 'mailerror', $result->getWikiText() )->text() );
 208                 } else {
 209                         $out->addWikiMsg( 'accmailtext', $u->getName(), $u->getEmail() );
 210                         $out->returnToMain( false );
 211                 }
 212         }
 213
 214         /**
 215          * @private
 216          * @return bool|void
 217          */
 218         function addNewAccount() {
 219                 global $wgUser, $wgEmailAuthentication, $wgLoginLanguageSelector;
 220
 221                 # Create the account and abort if there's a problem doing so
 222                 $u = $this->addNewAccountInternal();
 223                 if( $u == null ) {
 224                         return;
 225                 }
 226
 227                 # If we showed up language selection links, and one was in use, be
 228                 # smart (and sensible) and save that language as the user's preference
 229                 if( $wgLoginLanguageSelector && $this->mLanguage ) {
 230                         $u->setOption( 'language', $this->mLanguage );
 231                 }
 232
 233                 $out = $this->getOutput();
 234
 235                 # Send out an email authentication message if needed
 236                 if( $wgEmailAuthentication && Sanitizer::validateEmail( $u->getEmail() ) ) {
 237                         $status = $u->sendConfirmationMail();
 238                         if( $status->isGood() ) {
 239                                 $out->addWikiMsg( 'confirmemail_oncreate' );
 240                         } else {
 241                                 $out->addWikiText( $status->getWikiText( 'confirmemail_sendfailed' ) );
 242                         }
 243                 }
 244
 245                 # Save settings (including confirmation token)
 246                 $u->saveSettings();
 247
 248                 # If not logged in, assume the new account as the current one and set
 249                 # session cookies then show a "welcome" message or a "need cookies"
 250                 # message as needed
 251                 if( $this->getUser()->isAnon() ) {
 252                         $u->setCookies();
 253                         $wgUser = $u;
 254                         // This should set it for OutputPage and the Skin
 255                         // which is needed or the personal links will be
 256                         // wrong.
 257                         $this->getContext()->setUser( $u );
 258                         wfRunHooks( 'AddNewAccount', array( $u, false ) );
 259                         $u->addNewUserLogEntry();
 260                         if( $this->hasSessionCookie() ) {
 261                                 return $this->successfulCreation();
 262                         } else {
 263                                 return $this->cookieRedirectCheck( 'new' );
 264                         }
 265                 } else {
 266                         # Confirm that the account was created
 267                         $out->setPageTitle( $this->msg( 'accountcreated' ) );
 268                         $out->addWikiMsg( 'accountcreatedtext', $u->getName() );
 269                         $out->returnToMain( false, $this->getTitle() );
 270                         wfRunHooks( 'AddNewAccount', array( $u, false ) );
 271                         $u->addNewUserLogEntry( false, $this->mReason );
 272                         return true;
 273                 }
 274         }
 275
 276         /**
 277          * @private
 278          * @return bool|\User
 279          */
 280         function addNewAccountInternal() {
 281                 global $wgAuth, $wgMemc, $wgAccountCreationThrottle,
 282                         $wgMinimalPasswordLength, $wgEmailConfirmToEdit;
 283
 284                 // If the user passes an invalid domain, something is fishy
 285                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
 286                         $this->mainLoginForm( $this->msg( 'wrongpassword' )->text() );
 287                         return false;
 288                 }
 289
 290                 // If we are not allowing users to login locally, we should be checking
 291                 // to see if the user is actually able to authenticate to the authenti-
 292                 // cation server before they create an account (otherwise, they can
 293                 // create a local account and login as any domain user). We only need
 294                 // to check this for domains that aren't local.
 295                 if( 'local' != $this->mDomain && $this->mDomain != '' ) {
 296                         if( !$wgAuth->canCreateAccounts() && ( !$wgAuth->userExists( $this->mUsername )
 297                                 || !$wgAuth->authenticate( $this->mUsername, $this->mPassword ) ) ) {
 298                                 $this->mainLoginForm( $this->msg( 'wrongpassword' )->text() );
 299                                 return false;
 300                         }
 301                 }
 302
 303                 if ( wfReadOnly() ) {
 304                         throw new ReadOnlyError;
 305                 }
 306
 307                 # Request forgery checks.
 308                 if ( !self::getCreateaccountToken() ) {
 309                         self::setCreateaccountToken();
 310                         $this->mainLoginForm( $this->msg( 'nocookiesfornew' )->parse() );
 311                         return false;
 312                 }
 313
 314                 # The user didn't pass a createaccount token
 315                 if ( !$this->mToken ) {
 316                         $this->mainLoginForm( $this->msg( 'sessionfailure' )->text() );
 317                         return false;
 318                 }
 319
 320                 # Validate the createaccount token
 321                 if ( $this->mToken !== self::getCreateaccountToken() ) {
 322                         $this->mainLoginForm( $this->msg( 'sessionfailure' )->text() );
 323                         return false;
 324                 }
 325
 326                 # Check permissions
 327                 $currentUser = $this->getUser();
 328                 if ( !$currentUser->isAllowed( 'createaccount' ) ) {
 329                         throw new PermissionsError( 'createaccount' );
 330                 } elseif ( $currentUser->isBlockedFromCreateAccount() ) {
 331                         $this->userBlockedMessage( $currentUser->isBlockedFromCreateAccount() );
 332                         return false;
 333                 }
 334
 335                 $ip = $this->getRequest()->getIP();
 336                 if ( $currentUser->isDnsBlacklisted( $ip, true /* check $wgProxyWhitelist */ ) ) {
 337                         $this->mainLoginForm( $this->msg( 'sorbs_create_account_reason' )->text() . ' (' . htmlspecialchars( $ip ) . ')' );
 338                         return false;
 339                 }
 340
 341                 # Now create a dummy user ($u) and check if it is valid
 342                 $name = trim( $this->mUsername );
 343                 $u = User::newFromName( $name, 'creatable' );
 344                 if ( !is_object( $u ) ) {
 345                         $this->mainLoginForm( $this->msg( 'noname' )->text() );
 346                         return false;
 347                 }
 348
 349                 if ( 0 != $u->idForName() ) {
 350                         $this->mainLoginForm( $this->msg( 'userexists' )->text() );
 351                         return false;
 352                 }
 353
 354                 if ( 0 != strcmp( $this->mPassword, $this->mRetype ) ) {
 355                         $this->mainLoginForm( $this->msg( 'badretype' )->text() );
 356                         return false;
 357                 }
 358
 359                 # check for minimal password length
 360                 $valid = $u->getPasswordValidity( $this->mPassword );
 361                 if ( $valid !== true ) {
 362                         if ( !$this->mCreateaccountMail ) {
 363                                 if ( is_array( $valid ) ) {
 364                                         $message = array_shift( $valid );
 365                                         $params = $valid;
 366                                 } else {
 367                                         $message = $valid;
 368                                         $params = array( $wgMinimalPasswordLength );
 369                                 }
 370                                 $this->mainLoginForm( $this->msg( $message, $params )->text() );
 371                                 return false;
 372                         } else {
 373                                 # do not force a password for account creation by email
 374                                 # set invalid password, it will be replaced later by a random generated password
 375                                 $this->mPassword = null;
 376                         }
 377                 }
 378
 379                 # if you need a confirmed email address to edit, then obviously you
 380                 # need an email address.
 381                 if ( $wgEmailConfirmToEdit && empty( $this->mEmail ) ) {
 382                         $this->mainLoginForm( $this->msg( 'noemailtitle' )->text() );
 383                         return false;
 384                 }
 385
 386                 if( !empty( $this->mEmail ) && !Sanitizer::validateEmail( $this->mEmail ) ) {
 387                         $this->mainLoginForm( $this->msg( 'invalidemailaddress' )->text() );
 388                         return false;
 389                 }
 390
 391                 # Set some additional data so the AbortNewAccount hook can be used for
 392                 # more than just username validation
 393                 $u->setEmail( $this->mEmail );
 394                 $u->setRealName( $this->mRealName );
 395
 396                 $abortError = '';
 397                 if( !wfRunHooks( 'AbortNewAccount', array( $u, &$abortError ) ) ) {
 398                         // Hook point to add extra creation throttles and blocks
 399                         wfDebug( "LoginForm::addNewAccountInternal: a hook blocked creation\n" );
 400                         $this->mainLoginForm( $abortError );
 401                         return false;
 402                 }
 403
 404                 // Hook point to check for exempt from account creation throttle
 405                 if ( !wfRunHooks( 'ExemptFromAccountCreationThrottle', array( $ip ) ) ) {
 406                         wfDebug( "LoginForm::exemptFromAccountCreationThrottle: a hook allowed account creation w/o throttle\n" );
 407                 } else {
 408                         if ( ( $wgAccountCreationThrottle && $currentUser->isPingLimitable() ) ) {
 409                                 $key = wfMemcKey( 'acctcreate', 'ip', $ip );
 410                                 $value = $wgMemc->get( $key );
 411                                 if ( !$value ) {
 412                                         $wgMemc->set( $key, 0, 86400 );
 413                                 }
 414                                 if ( $value >= $wgAccountCreationThrottle ) {
 415                                         $this->throttleHit( $wgAccountCreationThrottle );
 416                                         return false;
 417                                 }
 418                                 $wgMemc->incr( $key );
 419                         }
 420                 }
 421
 422                 if( !$wgAuth->addUser( $u, $this->mPassword, $this->mEmail, $this->mRealName ) ) {
 423                         $this->mainLoginForm( $this->msg( 'externaldberror' )->text() );
 424                         return false;
 425                 }
 426
 427                 self::clearCreateaccountToken();
 428                 return $this->initUser( $u, false );
 429         }
 430
 431         /**
 432          * Actually add a user to the database.
 433          * Give it a User object that has been initialised with a name.
 434          *
 435          * @param $u User object.
 436          * @param $autocreate boolean -- true if this is an autocreation via auth plugin
 437          * @return User object.
 438          * @private
 439          */
 440         function initUser( $u, $autocreate ) {
 441                 global $wgAuth;
 442
 443                 $u->addToDatabase();
 444
 445                 if ( $wgAuth->allowPasswordChange() ) {
 446                         $u->setPassword( $this->mPassword );
 447                 }
 448
 449                 $u->setEmail( $this->mEmail );
 450                 $u->setRealName( $this->mRealName );
 451                 $u->setToken();
 452
 453                 $wgAuth->initUser( $u, $autocreate );
 454
 455                 if ( $this->mExtUser ) {
 456                         $this->mExtUser->linkToLocal( $u->getId() );
 457                         $email = $this->mExtUser->getPref( 'emailaddress' );
 458                         if ( $email && !$this->mEmail ) {
 459                                 $u->setEmail( $email );
 460                         }
 461                 }
 462
 463                 $u->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 464                 $u->saveSettings();
 465
 466                 # Update user count
 467                 $ssUpdate = new SiteStatsUpdate( 0, 0, 0, 0, 1 );
 468                 $ssUpdate->doUpdate();
 469
 470                 return $u;
 471         }
 472
 473         /**
 474          * Internally authenticate the login request.
 475          *
 476          * This may create a local account as a side effect if the
 477          * authentication plugin allows transparent local account
 478          * creation.
 479          * @return int
 480          */
 481         public function authenticateUserData() {
 482                 global $wgUser, $wgAuth;
 483
 484                 $this->load();
 485
 486                 if ( $this->mUsername == '' ) {
 487                         return self::NO_NAME;
 488                 }
 489
 490                 // We require a login token to prevent login CSRF
 491                 // Handle part of this before incrementing the throttle so
 492                 // token-less login attempts don't count towards the throttle
 493                 // but wrong-token attempts do.
 494
 495                 // If the user doesn't have a login token yet, set one.
 496                 if ( !self::getLoginToken() ) {
 497                         self::setLoginToken();
 498                         return self::NEED_TOKEN;
 499                 }
 500                 // If the user didn't pass a login token, tell them we need one
 501                 if ( !$this->mToken ) {
 502                         return self::NEED_TOKEN;
 503                 }
 504
 505                 $throttleCount = self::incLoginThrottle( $this->mUsername );
 506                 if ( $throttleCount === true ) {
 507                         return self::THROTTLED;
 508                 }
 509
 510                 // Validate the login token
 511                 if ( $this->mToken !== self::getLoginToken() ) {
 512                         return self::WRONG_TOKEN;
 513                 }
 514
 515                 // Load the current user now, and check to see if we're logging in as
 516                 // the same name. This is necessary because loading the current user
 517                 // (say by calling getName()) calls the UserLoadFromSession hook, which
 518                 // potentially creates the user in the database. Until we load $wgUser,
 519                 // checking for user existence using User::newFromName($name)->getId() below
 520                 // will effectively be using stale data.
 521                 if ( $this->getUser()->getName() === $this->mUsername ) {
 522                         wfDebug( __METHOD__ . ": already logged in as {$this->mUsername}\n" );
 523                         return self::SUCCESS;
 524                 }
 525
 526                 $this->mExtUser = ExternalUser::newFromName( $this->mUsername );
 527
 528                 # TODO: Allow some magic here for invalid external names, e.g., let the
 529                 # user choose a different wiki name.
 530                 $u = User::newFromName( $this->mUsername );
 531                 if( !( $u instanceof User ) || !User::isUsableName( $u->getName() ) ) {
 532                         return self::ILLEGAL;
 533                 }
 534
 535                 $isAutoCreated = false;
 536                 if ( 0 == $u->getID() ) {
 537                         $status = $this->attemptAutoCreate( $u );
 538                         if ( $status !== self::SUCCESS ) {
 539                                 return $status;
 540                         } else {
 541                                 $isAutoCreated = true;
 542                         }
 543                 } else {
 544                         global $wgExternalAuthType, $wgAutocreatePolicy;
 545                         if ( $wgExternalAuthType && $wgAutocreatePolicy != 'never'
 546                         && is_object( $this->mExtUser )
 547                         && $this->mExtUser->authenticate( $this->mPassword ) ) {
 548                                 # The external user and local user have the same name and
 549                                 # password, so we assume they're the same.
 550                                 $this->mExtUser->linkToLocal( $u->getID() );
 551                         }
 552
 553                         $u->load();
 554                 }
 555
 556                 // Give general extensions, such as a captcha, a chance to abort logins
 557                 $abort = self::ABORTED;
 558                 if( !wfRunHooks( 'AbortLogin', array( $u, $this->mPassword, &$abort, &$this->mAbortLoginErrorMsg ) ) ) {
 559                         return $abort;
 560                 }
 561
 562                 global $wgBlockDisablesLogin;
 563                 if ( !$u->checkPassword( $this->mPassword ) ) {
 564                         if( $u->checkTemporaryPassword( $this->mPassword ) ) {
 565                                 // The e-mailed temporary password should not be used for actu-
 566                                 // al logins; that's a very sloppy habit, and insecure if an
 567                                 // attacker has a few seconds to click "search" on someone's o-
 568                                 // pen mail reader.
 569                                 //
 570                                 // Allow it to be used only to reset the password a single time
 571                                 // to a new value, which won't be in the user's e-mail ar-
 572                                 // chives.
 573                                 //
 574                                 // For backwards compatibility, we'll still recognize it at the
 575                                 // login form to minimize surprises for people who have been
 576                                 // logging in with a temporary password for some time.
 577                                 //
 578                                 // As a side-effect, we can authenticate the user's e-mail ad-
 579                                 // dress if it's not already done, since the temporary password
 580                                 // was sent via e-mail.
 581                                 if( !$u->isEmailConfirmed() ) {
 582                                         $u->confirmEmail();
 583                                         $u->saveSettings();
 584                                 }
 585
 586                                 // At this point we just return an appropriate code/ indicating
 587                                 // that the UI should show a password reset form; bot inter-
 588                                 // faces etc will probably just fail cleanly here.
 589                                 $retval = self::RESET_PASS;
 590                         } else {
 591                                 $retval = ( $this->mPassword  == '' ) ? self::EMPTY_PASS : self::WRONG_PASS;
 592                         }
 593                 } elseif ( $wgBlockDisablesLogin && $u->isBlocked() ) {
 594                         // If we've enabled it, make it so that a blocked user cannot login
 595                         $retval = self::USER_BLOCKED;
 596                 } else {
 597                         $wgAuth->updateUser( $u );
 598                         $wgUser = $u;
 599                         // This should set it for OutputPage and the Skin
 600                         // which is needed or the personal links will be
 601                         // wrong.
 602                         $this->getContext()->setUser( $u );
 603
 604                         // Please reset throttle for successful logins, thanks!
 605                         if ( $throttleCount ) {
 606                                 self::clearLoginThrottle( $this->mUsername );
 607                         }
 608
 609                         if ( $isAutoCreated ) {
 610                                 // Must be run after $wgUser is set, for correct new user log
 611                                 wfRunHooks( 'AuthPluginAutoCreate', array( $u ) );
 612                         }
 613
 614                         $retval = self::SUCCESS;
 615                 }
 616                 wfRunHooks( 'LoginAuthenticateAudit', array( $u, $this->mPassword, $retval ) );
 617                 return $retval;
 618         }
 619
 620         /**
 621          * Increment the login attempt throttle hit count for the (username,current IP)
 622          * tuple unless the throttle was already reached.
 623          * @param $username string The user name
 624          * @return Bool|Integer The integer hit count or True if it is already at the limit
 625          */
 626         public static function incLoginThrottle( $username ) {
 627                 global $wgPasswordAttemptThrottle, $wgMemc, $wgRequest;
 628                 $username = trim( $username ); // sanity
 629
 630                 $throttleCount = 0;
 631                 if ( is_array( $wgPasswordAttemptThrottle ) ) {
 632                         $throttleKey = wfMemcKey( 'password-throttle', $wgRequest->getIP(), md5( $username ) );
 633                         $count = $wgPasswordAttemptThrottle['count'];
 634                         $period = $wgPasswordAttemptThrottle['seconds'];
 635
 636                         $throttleCount = $wgMemc->get( $throttleKey );
 637                         if ( !$throttleCount ) {
 638                                 $wgMemc->add( $throttleKey, 1, $period ); // start counter
 639                         } elseif ( $throttleCount < $count ) {
 640                                 $wgMemc->incr( $throttleKey );
 641                         } elseif ( $throttleCount >= $count ) {
 642                                 return true;
 643                         }
 644                 }
 645
 646                 return $throttleCount;
 647         }
 648
 649         /**
 650          * Clear the login attempt throttle hit count for the (username,current IP) tuple.
 651          * @param $username string The user name
 652          * @return void
 653          */
 654         public static function clearLoginThrottle( $username ) {
 655                 global $wgMemc, $wgRequest;
 656                 $username = trim( $username ); // sanity
 657
 658                 $throttleKey = wfMemcKey( 'password-throttle', $wgRequest->getIP(), md5( $username ) );
 659                 $wgMemc->delete( $throttleKey );
 660         }
 661
 662         /**
 663          * Attempt to automatically create a user on login. Only succeeds if there
 664          * is an external authentication method which allows it.
 665          *
 666          * @param $user User
 667          *
 668          * @return integer Status code
 669          */
 670         function attemptAutoCreate( $user ) {
 671                 global $wgAuth, $wgAutocreatePolicy;
 672
 673                 if ( $this->getUser()->isBlockedFromCreateAccount() ) {
 674                         wfDebug( __METHOD__ . ": user is blocked from account creation\n" );
 675                         return self::CREATE_BLOCKED;
 676                 }
 677
 678                 /**
 679                  * If the external authentication plugin allows it, automatically cre-
 680                  * ate a new account for users that are externally defined but have not
 681                  * yet logged in.
 682                  */
 683                 if ( $this->mExtUser ) {
 684                         # mExtUser is neither null nor false, so use the new ExternalAuth
 685                         # system.
 686                         if ( $wgAutocreatePolicy == 'never' ) {
 687                                 return self::NOT_EXISTS;
 688                         }
 689                         if ( !$this->mExtUser->authenticate( $this->mPassword ) ) {
 690                                 return self::WRONG_PLUGIN_PASS;
 691                         }
 692                 } else {
 693                         # Old AuthPlugin.
 694                         if ( !$wgAuth->autoCreate() ) {
 695                                 return self::NOT_EXISTS;
 696                         }
 697                         if ( !$wgAuth->userExists( $user->getName() ) ) {
 698                                 wfDebug( __METHOD__ . ": user does not exist\n" );
 699                                 return self::NOT_EXISTS;
 700                         }
 701                         if ( !$wgAuth->authenticate( $user->getName(), $this->mPassword ) ) {
 702                                 wfDebug( __METHOD__ . ": \$wgAuth->authenticate() returned false, aborting\n" );
 703                                 return self::WRONG_PLUGIN_PASS;
 704                         }
 705                 }
 706
 707                 $abortError = '';
 708                 if( !wfRunHooks( 'AbortAutoAccount', array( $user, &$abortError ) ) ) {
 709                         // Hook point to add extra creation throttles and blocks
 710                         wfDebug( "LoginForm::attemptAutoCreate: a hook blocked creation: $abortError\n" );
 711                         $this->mAbortLoginErrorMsg = $abortError;
 712                         return self::ABORTED;
 713                 }
 714
 715                 wfDebug( __METHOD__ . ": creating account\n" );
 716                 $this->initUser( $user, true );
 717                 return self::SUCCESS;
 718         }
 719
 720         function processLogin() {
 721                 global $wgMemc, $wgLang;
 722
 723                 switch ( $this->authenticateUserData() ) {
 724                         case self::SUCCESS:
 725                                 # We've verified now, update the real record
 726                                 $user = $this->getUser();
 727                                 if( (bool)$this->mRemember != (bool)$user->getOption( 'rememberpassword' ) ) {
 728                                         $user->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 729                                         $user->saveSettings();
 730                                 } else {
 731                                         $user->invalidateCache();
 732                                 }
 733                                 $user->setCookies();
 734                                 self::clearLoginToken();
 735
 736                                 // Reset the throttle
 737                                 $request = $this->getRequest();
 738                                 $key = wfMemcKey( 'password-throttle', $request->getIP(), md5( $this->mUsername ) );
 739                                 $wgMemc->delete( $key );
 740
 741                                 if( $this->hasSessionCookie() || $this->mSkipCookieCheck ) {
 742                                         /* Replace the language object to provide user interface in
 743                                          * correct language immediately on this first page load.
 744                                          */
 745                                         $code = $request->getVal( 'uselang', $user->getOption( 'language' ) );
 746                                         $userLang = Language::factory( $code );
 747                                         $wgLang = $userLang;
 748                                         $this->getContext()->setLanguage( $userLang );
 749                                         return $this->successfulLogin();
 750                                 } else {
 751                                         return $this->cookieRedirectCheck( 'login' );
 752                                 }
 753                                 break;
 754
 755                         case self::NEED_TOKEN:
 756                                 $this->mainLoginForm( $this->msg( 'nocookiesforlogin' )->parse() );
 757                                 break;
 758                         case self::WRONG_TOKEN:
 759                                 $this->mainLoginForm( $this->msg( 'sessionfailure' )->text() );
 760                                 break;
 761                         case self::NO_NAME:
 762                         case self::ILLEGAL:
 763                                 $this->mainLoginForm( $this->msg( 'noname' )->text() );
 764                                 break;
 765                         case self::WRONG_PLUGIN_PASS:
 766                                 $this->mainLoginForm( $this->msg( 'wrongpassword' )->text() );
 767                                 break;
 768                         case self::NOT_EXISTS:
 769                                 if( $this->getUser()->isAllowed( 'createaccount' ) ) {
 770                                         $this->mainLoginForm( $this->msg( 'nosuchuser',
 771                                            wfEscapeWikiText( $this->mUsername ) )->parse() );
 772                                 } else {
 773                                         $this->mainLoginForm( $this->msg( 'nosuchusershort',
 774                                                 wfEscapeWikiText( $this->mUsername ) )->text() );
 775                                 }
 776                                 break;
 777                         case self::WRONG_PASS:
 778                                 $this->mainLoginForm( $this->msg( 'wrongpassword' )->text() );
 779                                 break;
 780                         case self::EMPTY_PASS:
 781                                 $this->mainLoginForm( $this->msg( 'wrongpasswordempty' )->text() );
 782                                 break;
 783                         case self::RESET_PASS:
 784                                 $this->resetLoginForm( $this->msg( 'resetpass_announce' )->text() );
 785                                 break;
 786                         case self::CREATE_BLOCKED:
 787                                 $this->userBlockedMessage( $this->getUser()->mBlock );
 788                                 break;
 789                         case self::THROTTLED:
 790                                 $this->mainLoginForm( $this->msg( 'login-throttled' )->text() );
 791                                 break;
 792                         case self::USER_BLOCKED:
 793                                 $this->mainLoginForm( $this->msg( 'login-userblocked',
 794                                         $this->mUsername )->escaped() );
 795                                 break;
 796                         case self::ABORTED:
 797                                 $this->mainLoginForm( $this->msg( $this->mAbortLoginErrorMsg )->text() );
 798                                 break;
 799                         default:
 800                                 throw new MWException( 'Unhandled case value' );
 801                 }
 802         }
 803
 804         function resetLoginForm( $error ) {
 805                 $this->getOutput()->addHTML( Xml::element('p', array( 'class' => 'error' ), $error ) );
 806                 $reset = new SpecialChangePassword();
 807                 $reset->setContext( $this );
 808                 $reset->execute( null );
 809         }
 810
 811         /**
 812          * @param $u User object
 813          * @param $throttle Boolean
 814          * @param $emailTitle String: message name of email title
 815          * @param $emailText String: message name of email text
 816          * @return Status object
 817          */
 818         function mailPasswordInternal( $u, $throttle = true, $emailTitle = 'passwordremindertitle', $emailText = 'passwordremindertext' ) {
 819                 global $wgServer, $wgScript, $wgNewPasswordExpiry;
 820
 821                 if ( $u->getEmail() == '' ) {
 822                         return Status::newFatal( 'noemail', $u->getName() );
 823                 }
 824                 $ip = $this->getRequest()->getIP();
 825                 if( !$ip ) {
 826                         return Status::newFatal( 'badipaddress' );
 827                 }
 828
 829                 $currentUser = $this->getUser();
 830                 wfRunHooks( 'User::mailPasswordInternal', array( &$currentUser, &$ip, &$u ) );
 831
 832                 $np = $u->randomPassword();
 833                 $u->setNewpassword( $np, $throttle );
 834                 $u->saveSettings();
 835                 $userLanguage = $u->getOption( 'language' );
 836                 $m = $this->msg( $emailText, $ip, $u->getName(), $np, $wgServer . $wgScript,
 837                         round( $wgNewPasswordExpiry / 86400 ) )->inLanguage( $userLanguage )->text();
 838                 $result = $u->sendMail( $this->msg( $emailTitle )->inLanguage( $userLanguage )->text(), $m );
 839
 840                 return $result;
 841         }
 842
 843
 844         /**
 845          * Run any hooks registered for logins, then HTTP redirect to
 846          * $this->mReturnTo (or Main Page if that's undefined).  Formerly we had a
 847          * nice message here, but that's really not as useful as just being sent to
 848          * wherever you logged in from.  It should be clear that the action was
 849          * successful, given the lack of error messages plus the appearance of your
 850          * name in the upper right.
 851          *
 852          * @private
 853          */
 854         function successfulLogin() {
 855                 # Run any hooks; display injected HTML if any, else redirect
 856                 $currentUser = $this->getUser();
 857                 $injected_html = '';
 858                 wfRunHooks( 'UserLoginComplete', array( &$currentUser, &$injected_html ) );
 859
 860                 if( $injected_html !== '' ) {
 861                         $this->displaySuccessfulLogin( 'loginsuccess', $injected_html );
 862                 } else {
 863                         $titleObj = Title::newFromText( $this->mReturnTo );
 864                         if ( !$titleObj instanceof Title ) {
 865                                 $titleObj = Title::newMainPage();
 866                         }
 867                         $redirectUrl = $titleObj->getFullURL( $this->mReturnToQuery );
 868                         global $wgSecureLogin;
 869                         if( $wgSecureLogin && !$this->mStickHTTPS ) {
 870                                 $redirectUrl = preg_replace( '/^https:/', 'http:', $redirectUrl );
 871                         }
 872                         $this->getOutput()->redirect( $redirectUrl );
 873                 }
 874         }
 875
 876         /**
 877          * Run any hooks registered for logins, then display a message welcoming
 878          * the user.
 879          *
 880          * @private
 881          */
 882         function successfulCreation() {
 883                 # Run any hooks; display injected HTML
 884                 $currentUser = $this->getUser();
 885                 $injected_html = '';
 886                 $welcome_creation_msg = 'welcomecreation';
 887
 888                 wfRunHooks( 'UserLoginComplete', array( &$currentUser, &$injected_html ) );
 889
 890                 /**
 891                  * Let any extensions change what message is shown.
 892                  * @see https://www.mediawiki.org/wiki/Manual:Hooks/BeforeWelcomeCreation
 893                  * @since 1.18
 894                  */
 895                 wfRunHooks( 'BeforeWelcomeCreation', array( &$welcome_creation_msg, &$injected_html ) );
 896
 897                 $this->displaySuccessfulLogin( $welcome_creation_msg, $injected_html );
 898         }
 899
 900         /**
 901          * Display a "login successful" page.
 902          */
 903         private function displaySuccessfulLogin( $msgname, $injected_html ) {
 904                 $out = $this->getOutput();
 905                 $out->setPageTitle( $this->msg( 'loginsuccesstitle' ) );
 906                 if( $msgname ){
 907                         $out->addWikiMsg( $msgname, wfEscapeWikiText( $this->getUser()->getName() ) );
 908                 }
 909
 910                 $out->addHTML( $injected_html );
 911
 912                 if ( !empty( $this->mReturnTo ) ) {
 913                         $out->returnToMain( null, $this->mReturnTo, $this->mReturnToQuery );
 914                 } else {
 915                         $out->returnToMain( null );
 916                 }
 917         }
 918
 919         /**
 920          * Output a message that informs the user that they cannot create an account because
 921          * there is a block on them or their IP which prevents account creation.  Note that
 922          * User::isBlockedFromCreateAccount(), which gets this block, ignores the 'hardblock'
 923          * setting on blocks (bug 13611).
 924          * @param $block Block the block causing this error
 925          */
 926         function userBlockedMessage( Block $block ) {
 927                 # Let's be nice about this, it's likely that this feature will be used
 928                 # for blocking large numbers of innocent people, e.g. range blocks on
 929                 # schools. Don't blame it on the user. There's a small chance that it
 930                 # really is the user's fault, i.e. the username is blocked and they
 931                 # haven't bothered to log out before trying to create an account to
 932                 # evade it, but we'll leave that to their guilty conscience to figure
 933                 # out.
 934
 935                 $out = $this->getOutput();
 936                 $out->setPageTitle( $this->msg( 'cantcreateaccounttitle' ) );
 937
 938                 $block_reason = $block->mReason;
 939                 if ( strval( $block_reason ) === '' ) {
 940                         $block_reason = $this->msg( 'blockednoreason' )->text();
 941                 }
 942
 943                 $out->addWikiMsg(
 944                         'cantcreateaccount-text',
 945                         $block->getTarget(),
 946                         $block_reason,
 947                         $block->getByName()
 948                 );
 949
 950                 $out->returnToMain( false );
 951         }
 952
 953         /**
 954          * @private
 955          */
 956         function mainLoginForm( $msg, $msgtype = 'error' ) {
 957                 global $wgEnableEmail, $wgEnableUserEmail;
 958                 global $wgHiddenPrefs, $wgLoginLanguageSelector;
 959                 global $wgAuth, $wgEmailConfirmToEdit, $wgCookieExpiration;
 960                 global $wgSecureLogin, $wgPasswordResetRoutes;
 961
 962                 $titleObj = $this->getTitle();
 963                 $user = $this->getUser();
 964
 965                 if ( $this->mType == 'signup' ) {
 966                         // Block signup here if in readonly. Keeps user from
 967                         // going through the process (filling out data, etc)
 968                         // and being informed later.
 969                         $permErrors = $titleObj->getUserPermissionsErrors( 'createaccount', $user, true );
 970                         if ( count( $permErrors ) ) {
 971                                 throw new PermissionsError( 'createaccount', $permErrors );
 972                         } elseif ( $user->isBlockedFromCreateAccount() ) {
 973                                 $this->userBlockedMessage( $user->isBlockedFromCreateAccount() );
 974                                 return;
 975                         } elseif ( wfReadOnly() ) {
 976                                 throw new ReadOnlyError;
 977                         }
 978                 }
 979
 980                 if ( $this->mUsername == '' ) {
 981                         if ( $user->isLoggedIn() ) {
 982                                 $this->mUsername = $user->getName();
 983                         } else {
 984                                 $this->mUsername = $this->getRequest()->getCookie( 'UserName' );
 985                         }
 986                 }
 987
 988                 if ( $this->mType == 'signup' ) {
 989                         $template = new UsercreateTemplate();
 990                         $q = 'action=submitlogin&type=signup';
 991                         $linkq = 'type=login';
 992                         $linkmsg = 'gotaccount';
 993                 } else {
 994                         $template = new UserloginTemplate();
 995                         $q = 'action=submitlogin&type=login';
 996                         $linkq = 'type=signup';
 997                         $linkmsg = 'nologin';
 998                 }
 999
1000                 if ( !empty( $this->mReturnTo ) ) {
1001                         $returnto = '&returnto=' . wfUrlencode( $this->mReturnTo );
1002                         if ( !empty( $this->mReturnToQuery ) ) {
1003                                 $returnto .= '&returntoquery=' .
1004                                         wfUrlencode( $this->mReturnToQuery );
1005                         }
1006                         $q .= $returnto;
1007                         $linkq .= $returnto;
1008                 }
1009
1010                 # Don't show a "create account" link if the user can't
1011                 if( $this->showCreateOrLoginLink( $user ) ) {
1012                         # Pass any language selection on to the mode switch link
1013                         if( $wgLoginLanguageSelector && $this->mLanguage ) {
1014                                 $linkq .= '&uselang=' . $this->mLanguage;
1015                         }
1016                         $link = Html::element( 'a', array( 'href' => $titleObj->getLocalURL( $linkq ) ),
1017                                 $this->msg( $linkmsg . 'link' )->text() ); # Calling either 'gotaccountlink' or 'nologinlink'
1018
1019                         $template->set( 'link', $this->msg( $linkmsg )->rawParams( $link )->parse() );
1020                 } else {
1021                         $template->set( 'link', '' );
1022                 }
1023
1024                 $resetLink = $this->mType == 'signup'
1025                         ? null
1026                         : is_array( $wgPasswordResetRoutes ) && in_array( true, array_values( $wgPasswordResetRoutes ) );
1027
1028                 $template->set( 'header', '' );
1029                 $template->set( 'name', $this->mUsername );
1030                 $template->set( 'password', $this->mPassword );
1031                 $template->set( 'retype', $this->mRetype );
1032                 $template->set( 'email', $this->mEmail );
1033                 $template->set( 'realname', $this->mRealName );
1034                 $template->set( 'domain', $this->mDomain );
1035                 $template->set( 'reason', $this->mReason );
1036
1037                 $template->set( 'action', $titleObj->getLocalURL( $q ) );
1038                 $template->set( 'message', $msg );
1039                 $template->set( 'messagetype', $msgtype );
1040                 $template->set( 'createemail', $wgEnableEmail && $user->isLoggedIn() );
1041                 $template->set( 'userealname', !in_array( 'realname', $wgHiddenPrefs ) );
1042                 $template->set( 'useemail', $wgEnableEmail );
1043                 $template->set( 'emailrequired', $wgEmailConfirmToEdit );
1044                 $template->set( 'emailothers', $wgEnableUserEmail );
1045                 $template->set( 'canreset', $wgAuth->allowPasswordChange() );
1046                 $template->set( 'resetlink', $resetLink );
1047                 $template->set( 'canremember', ( $wgCookieExpiration > 0 ) );
1048                 $template->set( 'usereason', $user->isLoggedIn() );
1049                 $template->set( 'remember', $user->getOption( 'rememberpassword' ) || $this->mRemember );
1050                 $template->set( 'cansecurelogin', ( $wgSecureLogin === true ) );
1051                 $template->set( 'stickHTTPS', $this->mStickHTTPS );
1052
1053                 if ( $this->mType == 'signup' ) {
1054                         if ( !self::getCreateaccountToken() ) {
1055                                 self::setCreateaccountToken();
1056                         }
1057                         $template->set( 'token', self::getCreateaccountToken() );
1058                 } else {
1059                         if ( !self::getLoginToken() ) {
1060                                 self::setLoginToken();
1061                         }
1062                         $template->set( 'token', self::getLoginToken() );
1063                 }
1064
1065                 # Prepare language selection links as needed
1066                 if( $wgLoginLanguageSelector ) {
1067                         $template->set( 'languages', $this->makeLanguageSelector() );
1068                         if( $this->mLanguage ) {
1069                                 $template->set( 'uselang', $this->mLanguage );
1070                         }
1071                 }
1072
1073                 // Use loginend-https for HTTPS requests if it's not blank, loginend otherwise
1074                 // Ditto for signupend
1075                 $usingHTTPS = WebRequest::detectProtocol() == 'https';
1076                 $loginendHTTPS = $this->msg( 'loginend-https' );
1077                 $signupendHTTPS = $this->msg( 'signupend-https' );
1078                 if ( $usingHTTPS && !$loginendHTTPS->isBlank() ) {
1079                         $template->set( 'loginend', $loginendHTTPS->parse() );
1080                 } else {
1081                         $template->set( 'loginend', $this->msg( 'loginend' )->parse() );
1082                 }
1083                 if ( $usingHTTPS && !$signupendHTTPS->isBlank() ) {
1084                         $template->set( 'signupend', $signupendHTTPS->parse() );
1085                 } else {
1086                         $template->set( 'signupend', $this->msg( 'signupend' )->parse() );
1087                 }
1088
1089                 // Give authentication and captcha plugins a chance to modify the form
1090                 $wgAuth->modifyUITemplate( $template, $this->mType );
1091                 if ( $this->mType == 'signup' ) {
1092                         wfRunHooks( 'UserCreateForm', array( &$template ) );
1093                 } else {
1094                         wfRunHooks( 'UserLoginForm', array( &$template ) );
1095                 }
1096
1097                 $out = $this->getOutput();
1098                 $out->disallowUserJs(); // just in case...
1099                 $out->addTemplate( $template );
1100         }
1101
1102         /**
1103          * @private
1104          *
1105          * @param $user User
1106          *
1107          * @return Boolean
1108          */
1109         function showCreateOrLoginLink( &$user ) {
1110                 if( $this->mType == 'signup' ) {
1111                         return true;
1112                 } elseif( $user->isAllowed( 'createaccount' ) ) {
1113                         return true;
1114                 } else {
1115                         return false;
1116                 }
1117         }
1118
1119         /**
1120          * Check if a session cookie is present.
1121          *
1122          * This will not pick up a cookie set during _this_ request, but is meant
1123          * to ensure that the client is returning the cookie which was set on a
1124          * previous pass through the system.
1125          *
1126          * @private
1127          * @return bool
1128          */
1129         function hasSessionCookie() {
1130                 global $wgDisableCookieCheck;
1131                 return $wgDisableCookieCheck ? true : $this->getRequest()->checkSessionCookie();
1132         }
1133
1134         /**
1135          * Get the login token from the current session
1136          * @return Mixed
1137          */
1138         public static function getLoginToken() {
1139                 global $wgRequest;
1140                 return $wgRequest->getSessionData( 'wsLoginToken' );
1141         }
1142
1143         /**
1144          * Randomly generate a new login token and attach it to the current session
1145          */
1146         public static function setLoginToken() {
1147                 global $wgRequest;
1148                 // Use User::generateToken() instead of $user->editToken()
1149                 // because the latter reuses $_SESSION['wsEditToken']
1150                 $wgRequest->setSessionData( 'wsLoginToken', User::generateToken() );
1151         }
1152
1153         /**
1154          * Remove any login token attached to the current session
1155          */
1156         public static function clearLoginToken() {
1157                 global $wgRequest;
1158                 $wgRequest->setSessionData( 'wsLoginToken', null );
1159         }
1160
1161         /**
1162          * Get the createaccount token from the current session
1163          * @return Mixed
1164          */
1165         public static function getCreateaccountToken() {
1166                 global $wgRequest;
1167                 return $wgRequest->getSessionData( 'wsCreateaccountToken' );
1168         }
1169
1170         /**
1171          * Randomly generate a new createaccount token and attach it to the current session
1172          */
1173         public static function setCreateaccountToken() {
1174                 global $wgRequest;
1175                 $wgRequest->setSessionData( 'wsCreateaccountToken', User::generateToken() );
1176         }
1177
1178         /**
1179          * Remove any createaccount token attached to the current session
1180          */
1181         public static function clearCreateaccountToken() {
1182                 global $wgRequest;
1183                 $wgRequest->setSessionData( 'wsCreateaccountToken', null );
1184         }
1185
1186         /**
1187          * @private
1188          * @return void
1189          */
1190         function cookieRedirectCheck( $type ) {
1191                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
1192                 $query = array( 'wpCookieCheck' => $type );
1193                 if ( $this->mReturnTo ) {
1194                         $query['returnto'] = $this->mReturnTo;
1195                 }
1196                 $check = $titleObj->getFullURL( $query );
1197
1198                 return $this->getOutput()->redirect( $check );
1199         }
1200
1201         /**
1202          * @private
1203          */
1204         function onCookieRedirectCheck( $type ) {
1205                 if ( !$this->hasSessionCookie() ) {
1206                         if ( $type == 'new' ) {
1207                                 return $this->mainLoginForm( $this->msg( 'nocookiesnew' )->parse() );
1208                         } elseif ( $type == 'login' ) {
1209                                 return $this->mainLoginForm( $this->msg( 'nocookieslogin' )->parse() );
1210                         } else {
1211                                 # shouldn't happen
1212                                 return $this->mainLoginForm( $this->msg( 'error' )->text() );
1213                         }
1214                 } else {
1215                         return $this->successfulLogin();
1216                 }
1217         }
1218
1219         /**
1220          * @private
1221          */
1222         function throttleHit( $limit ) {
1223                 $this->mainLoginForm( $this->msg( 'acct_creation_throttle_hit' )->numParams( $limit )->parse() );
1224         }
1225
1226         /**
1227          * Produce a bar of links which allow the user to select another language
1228          * during login/registration but retain "returnto"
1229          *
1230          * @return string
1231          */
1232         function makeLanguageSelector() {
1233                 $msg = $this->msg( 'loginlanguagelinks' )->inContentLanguage();
1234                 if( !$msg->isBlank() ) {
1235                         $langs = explode( "\n", $msg->text() );
1236                         $links = array();
1237                         foreach( $langs as $lang ) {
1238                                 $lang = trim( $lang, '* ' );
1239                                 $parts = explode( '|', $lang );
1240                                 if ( count( $parts ) >= 2 ) {
1241                                         $links[] = $this->makeLanguageSelectorLink( $parts[0], trim( $parts[1] ) );
1242                                 }
1243                         }
1244                         return count( $links ) > 0 ? $this->msg( 'loginlanguagelabel' )->rawParams(
1245                                 $this->getLanguage()->pipeList( $links ) )->escaped() : '';
1246                 } else {
1247                         return '';
1248                 }
1249         }
1250
1251         /**
1252          * Create a language selector link for a particular language
1253          * Links back to this page preserving type and returnto
1254          *
1255          * @param $text Link text
1256          * @param $lang Language code
1257          * @return string
1258          */
1259         function makeLanguageSelectorLink( $text, $lang ) {
1260                 $attr = array( 'uselang' => $lang );
1261                 if( $this->mType == 'signup' ) {
1262                         $attr['type'] = 'signup';
1263                 }
1264                 if( $this->mReturnTo ) {
1265                         $attr['returnto'] = $this->mReturnTo;
1266                 }
1267                 return Linker::linkKnown(
1268                         $this->getTitle(),
1269                         htmlspecialchars( $text ),
1270                         array(),
1271                         $attr
1272                 );
1273         }
1274 }