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