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