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, $mSecureLoginUrl;
  53         // TODO (spage 2013-02-13)  Remove old forms by, say, release 1.22.
  54         private $mShowAgora;
  55
  56         /**
  57          * @var ExternalUser
  58          */
  59         private $mExtUser = null;
  60
  61         /**
  62          * @ var WebRequest
  63          */
  64         private $mOverrideRequest = null;
  65
  66         /**
  67          * @param WebRequest $request
  68          */
  69         public function __construct( $request = null ) {
  70                 parent::__construct( 'Userlogin' );
  71
  72                 $this->mOverrideRequest = $request;
  73         }
  74
  75         /**
  76          * Loader
  77          */
  78         function load() {
  79                 global $wgAuth, $wgHiddenPrefs, $wgEnableEmail;
  80
  81                 if ( $this->mLoaded ) {
  82                         return;
  83                 }
  84                 $this->mLoaded = true;
  85
  86                 if ( $this->mOverrideRequest === null ) {
  87                         $request = $this->getRequest();
  88                 } else {
  89                         $request = $this->mOverrideRequest;
  90                 }
  91
  92                 $this->mType = $request->getText( 'type' );
  93                 $this->mUsername = $request->getText( 'wpName' );
  94                 $this->mPassword = $request->getText( 'wpPassword' );
  95                 $this->mRetype = $request->getText( 'wpRetype' );
  96                 $this->mDomain = $request->getText( 'wpDomain' );
  97                 $this->mReason = $request->getText( 'wpReason' );
  98                 $this->mCookieCheck = $request->getVal( 'wpCookieCheck' );
  99                 $this->mPosted = $request->wasPosted();
 100                 $this->mCreateaccountMail = $request->getCheck( 'wpCreateaccountMail' )
 101                                                                         && $wgEnableEmail;
 102                 $this->mCreateaccount = $request->getCheck( 'wpCreateaccount' ) && !$this->mCreateaccountMail;
 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                 $this->mReturnTo = $request->getVal( 'returnto', '' );
 111                 $this->mReturnToQuery = $request->getVal( 'returntoquery', '' );
 112
 113                 if( $wgEnableEmail ) {
 114                         $this->mEmail = $request->getText( 'wpEmail' );
 115                 } else {
 116                         $this->mEmail = '';
 117                 }
 118                 if( !in_array( 'realname', $wgHiddenPrefs ) ) {
 119                         $this->mRealName = $request->getText( 'wpRealName' );
 120                 } else {
 121                         $this->mRealName = '';
 122                 }
 123
 124                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
 125                         $this->mDomain = $wgAuth->getDomain();
 126                 }
 127                 $wgAuth->setDomain( $this->mDomain );
 128
 129                 # 1. When switching accounts, it sucks to get automatically logged out
 130                 # 2. Do not return to PasswordReset after a successful password change
 131                 #    but goto Wiki start page (Main_Page) instead ( bug 33997 )
 132                 $returnToTitle = Title::newFromText( $this->mReturnTo );
 133                 if( is_object( $returnToTitle ) && (
 134                         $returnToTitle->isSpecial( 'Userlogout' )
 135                         || $returnToTitle->isSpecial( 'PasswordReset' ) ) ) {
 136                         $this->mReturnTo = '';
 137                         $this->mReturnToQuery = '';
 138                 }
 139
 140                 $this->mShowAgora = $this->shouldShowAgora();
 141         }
 142
 143         function getDescription() {
 144                 if ( !$this->getUser()->isAllowed( 'createaccount' ) ) {
 145                         return $this->msg( 'userloginnocreate' )->text();
 146                 }
 147                 if ( $this->mShowAgora ) {
 148                         return $this->msg( $this->mType === 'signup' ?
 149                                         'createaccount' : 'login'
 150                                 )->text();
 151                 } else {
 152                         return $this->msg( 'userlogin' )->text();
 153                 }
 154         }
 155
 156         public function execute( $par ) {
 157                 if ( session_id() == '' ) {
 158                         wfSetupSession();
 159                 }
 160
 161                 $this->load();
 162                 $this->setHeaders();
 163
 164                 // If logging in and not on HTTPS, either redirect to it or offer a link.
 165                 global $wgSecureLogin;
 166                 if (
 167                         $this->mType !== 'signup' &&
 168                         WebRequest::detectProtocol() !== 'https'
 169                 ) {
 170                         $title = $this->getFullTitle();
 171                         $query = array(
 172                                 'returnto' => $this->mReturnTo,
 173                                 'returntoquery' => $this->mReturnToQuery,
 174                                 'wpStickHTTPS' => $this->mStickHTTPS
 175                         );
 176                         $url = $title->getFullURL( $query, false, PROTO_HTTPS );
 177                         if ( $wgSecureLogin ) {
 178                                 $this->getOutput()->redirect( $url );
 179                                 return;
 180                         } else {
 181                                 // A wiki without https login support should set wgServer to
 182                                 // http://somehost, in which case the secure URL generated
 183                                 // above actually won't be PROTO_HTTPS.
 184                                 if ( strncmp($url, PROTO_HTTPS, strlen( PROTO_HTTPS ) ) === 0 ) {
 185                                         $this->mSecureLoginUrl = $url;
 186                                 }
 187                         }
 188                 }
 189
 190                 if ( $par == 'signup' ) { # Check for [[Special:Userlogin/signup]]
 191                         $this->mType = 'signup';
 192                 }
 193
 194                 if ( !is_null( $this->mCookieCheck ) ) {
 195                         $this->onCookieRedirectCheck( $this->mCookieCheck );
 196                         return;
 197                 } elseif( $this->mPosted ) {
 198                         if( $this->mCreateaccount ) {
 199                                 $this->addNewAccount();
 200                                 return;
 201                         } elseif ( $this->mCreateaccountMail ) {
 202                                 $this->addNewAccountMailPassword();
 203                                 return;
 204                         } elseif ( ( 'submitlogin' == $this->mAction ) || $this->mLoginattempt ) {
 205                                 $this->processLogin();
 206                                 return;
 207                         }
 208                 }
 209                 $this->mainLoginForm( '' );
 210         }
 211
 212         /**
 213          * @private
 214          */
 215         function addNewAccountMailPassword() {
 216                 if ( $this->mEmail == '' ) {
 217                         $this->mainLoginForm( $this->msg( 'noemailcreate' )->escaped() );
 218                         return;
 219                 }
 220
 221                 $status = $this->addNewaccountInternal();
 222                 if( !$status->isGood() ) {
 223                         $error = $this->getOutput()->parse( $status->getWikiText() );
 224                         $this->mainLoginForm( $error );
 225                         return;
 226                 }
 227
 228                 $u = $status->getValue();
 229
 230                 // Wipe the initial password and mail a temporary one
 231                 $u->setPassword( null );
 232                 $u->saveSettings();
 233                 $result = $this->mailPasswordInternal( $u, false, 'createaccount-title', 'createaccount-text' );
 234
 235                 wfRunHooks( 'AddNewAccount', array( $u, true ) );
 236                 $u->addNewUserLogEntry( 'byemail', $this->mReason );
 237
 238                 $out = $this->getOutput();
 239                 $out->setPageTitle( $this->msg( 'accmailtitle' ) );
 240
 241                 if( !$result->isGood() ) {
 242                         $this->mainLoginForm( $this->msg( 'mailerror', $result->getWikiText() )->text() );
 243                 } else {
 244                         $out->addWikiMsg( 'accmailtext', $u->getName(), $u->getEmail() );
 245                         $this->executeReturnTo( 'success' );
 246                 }
 247         }
 248
 249         /**
 250          * @private
 251          * @return bool
 252          */
 253         function addNewAccount() {
 254                 global $wgContLang, $wgUser, $wgEmailAuthentication, $wgLoginLanguageSelector;
 255
 256                 # Create the account and abort if there's a problem doing so
 257                 $status = $this->addNewAccountInternal();
 258                 if( !$status->isGood() ) {
 259                         $error = $this->getOutput()->parse( $status->getWikiText() );
 260                         $this->mainLoginForm( $error );
 261                         return false;
 262                 }
 263
 264                 $u = $status->getValue();
 265
 266                 # Only save preferences if the user is not creating an account for someone else.
 267                 if ( $this->getUser()->isAnon() ) {
 268                         # If we showed up language selection links, and one was in use, be
 269                         # smart (and sensible) and save that language as the user's preference
 270                         if( $wgLoginLanguageSelector && $this->mLanguage ) {
 271                                 $u->setOption( 'language', $this->mLanguage );
 272                         } else {
 273
 274                                 # Otherwise the user's language preference defaults to $wgContLang,
 275                                 # but it may be better to set it to their preferred $wgContLang variant,
 276                                 # based on browser preferences or URL parameters.
 277                                 $u->setOption( 'language', $wgContLang->getPreferredVariant() );
 278                         }
 279                         if ( $wgContLang->hasVariants() ) {
 280                                 $u->setOption( 'variant', $wgContLang->getPreferredVariant() );
 281                         }
 282                 }
 283
 284                 $out = $this->getOutput();
 285
 286                 # Send out an email authentication message if needed
 287                 if( $wgEmailAuthentication && Sanitizer::validateEmail( $u->getEmail() ) ) {
 288                         $status = $u->sendConfirmationMail();
 289                         if( $status->isGood() ) {
 290                                 $out->addWikiMsg( 'confirmemail_oncreate' );
 291                         } else {
 292                                 $out->addWikiText( $status->getWikiText( 'confirmemail_sendfailed' ) );
 293                         }
 294                 }
 295
 296                 # Save settings (including confirmation token)
 297                 $u->saveSettings();
 298
 299                 # If not logged in, assume the new account as the current one and set
 300                 # session cookies then show a "welcome" message or a "need cookies"
 301                 # message as needed
 302                 if( $this->getUser()->isAnon() ) {
 303                         $u->setCookies();
 304                         $wgUser = $u;
 305                         // This should set it for OutputPage and the Skin
 306                         // which is needed or the personal links will be
 307                         // wrong.
 308                         $this->getContext()->setUser( $u );
 309                         wfRunHooks( 'AddNewAccount', array( $u, false ) );
 310                         $u->addNewUserLogEntry( 'create' );
 311                         if( $this->hasSessionCookie() ) {
 312                                 $this->successfulCreation();
 313                         } else {
 314                                 $this->cookieRedirectCheck( 'new' );
 315                         }
 316                 } else {
 317                         # Confirm that the account was created
 318                         $out->setPageTitle( $this->msg( 'accountcreated' ) );
 319                         $out->addWikiMsg( 'accountcreatedtext', $u->getName() );
 320                         $out->addReturnTo( $this->getTitle() );
 321                         wfRunHooks( 'AddNewAccount', array( $u, false ) );
 322                         $u->addNewUserLogEntry( 'create2', $this->mReason );
 323                 }
 324                 return true;
 325         }
 326
 327         /**
 328          * Make a new user account using the loaded data.
 329          * @private
 330          * @throws PermissionsError|ReadOnlyError
 331          * @return Status
 332          */
 333         public function addNewAccountInternal() {
 334                 global $wgAuth, $wgMemc, $wgAccountCreationThrottle,
 335                         $wgMinimalPasswordLength, $wgEmailConfirmToEdit;
 336
 337                 // If the user passes an invalid domain, something is fishy
 338                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
 339                         return Status::newFatal( 'wrongpassword' );
 340                 }
 341
 342                 // If we are not allowing users to login locally, we should be checking
 343                 // to see if the user is actually able to authenticate to the authenti-
 344                 // cation server before they create an account (otherwise, they can
 345                 // create a local account and login as any domain user). We only need
 346                 // to check this for domains that aren't local.
 347                 if( 'local' != $this->mDomain && $this->mDomain != '' ) {
 348                         if(
 349                                 !$wgAuth->canCreateAccounts() &&
 350                                 (
 351                                         !$wgAuth->userExists( $this->mUsername ) ||
 352                                         !$wgAuth->authenticate( $this->mUsername, $this->mPassword )
 353                                 )
 354                         ) {
 355                                 return Status::newFatal( 'wrongpassword' );
 356                         }
 357                 }
 358
 359                 if ( wfReadOnly() ) {
 360                         throw new ReadOnlyError;
 361                 }
 362
 363                 # Request forgery checks.
 364                 if ( !self::getCreateaccountToken() ) {
 365                         self::setCreateaccountToken();
 366                         return Status::newFatal( 'nocookiesfornew' );
 367                 }
 368
 369                 # The user didn't pass a createaccount token
 370                 if ( !$this->mToken ) {
 371                         return Status::newFatal( 'sessionfailure' );
 372                 }
 373
 374                 # Validate the createaccount token
 375                 if ( $this->mToken !== self::getCreateaccountToken() ) {
 376                         return Status::newFatal( 'sessionfailure' );
 377                 }
 378
 379                 # Check permissions
 380                 $currentUser = $this->getUser();
 381                 $creationBlock = $currentUser->isBlockedFromCreateAccount();
 382                 if ( !$currentUser->isAllowed( 'createaccount' ) ) {
 383                         throw new PermissionsError( 'createaccount' );
 384                 } elseif ( $creationBlock instanceof Block ) {
 385                         // Throws an ErrorPageError.
 386                         $this->userBlockedMessage( $creationBlock );
 387                         // This should never be reached.
 388                         return false;
 389                 }
 390
 391                 # Include checks that will include GlobalBlocking (Bug 38333)
 392                 $permErrors = $this->getTitle()->getUserPermissionsErrors( 'createaccount', $currentUser, true );
 393                 if ( count( $permErrors ) ) {
 394                                 throw new PermissionsError( 'createaccount', $permErrors );
 395                 }
 396
 397                 $ip = $this->getRequest()->getIP();
 398                 if ( $currentUser->isDnsBlacklisted( $ip, true /* check $wgProxyWhitelist */ ) ) {
 399                         return Status::newFatal( 'sorbs_create_account_reason' );
 400                 }
 401
 402                 # Now create a dummy user ($u) and check if it is valid
 403                 $name = trim( $this->mUsername );
 404                 $u = User::newFromName( $name, 'creatable' );
 405                 if ( !is_object( $u ) ) {
 406                         return Status::newFatal( 'noname' );
 407                 } elseif ( 0 != $u->idForName() ) {
 408                         return Status::newFatal( 'userexists' );
 409                 }
 410
 411                 if ( $this->mCreateaccountMail ) {
 412                         # do not force a password for account creation by email
 413                         # set invalid password, it will be replaced later by a random generated password
 414                         $this->mPassword = null;
 415                 } else {
 416                         if ( $this->mPassword !== $this->mRetype ) {
 417                                 return Status::newFatal( 'badretype' );
 418                         }
 419
 420                         # check for minimal password length
 421                         $valid = $u->getPasswordValidity( $this->mPassword );
 422                         if ( $valid !== true ) {
 423                                 if ( !is_array( $valid ) ) {
 424                                         $valid = array( $valid, $wgMinimalPasswordLength );
 425                                 }
 426                                 return call_user_func_array( 'Status::newFatal', $valid );
 427                         }
 428                 }
 429
 430                 # if you need a confirmed email address to edit, then obviously you
 431                 # need an email address.
 432                 if ( $wgEmailConfirmToEdit && strval( $this->mEmail ) === '' ) {
 433                         return Status::newFatal( 'noemailtitle' );
 434                 }
 435
 436                 if ( strval( $this->mEmail ) !== '' && !Sanitizer::validateEmail( $this->mEmail ) ) {
 437                         return Status::newFatal( 'invalidemailaddress' );
 438                 }
 439
 440                 # Set some additional data so the AbortNewAccount hook can be used for
 441                 # more than just username validation
 442                 $u->setEmail( $this->mEmail );
 443                 $u->setRealName( $this->mRealName );
 444
 445                 $abortError = '';
 446                 if( !wfRunHooks( 'AbortNewAccount', array( $u, &$abortError ) ) ) {
 447                         // Hook point to add extra creation throttles and blocks
 448                         wfDebug( "LoginForm::addNewAccountInternal: a hook blocked creation\n" );
 449                         return Status::newFatal( new RawMessage( $abortError ) );
 450                 }
 451
 452                 // Hook point to check for exempt from account creation throttle
 453                 if ( !wfRunHooks( 'ExemptFromAccountCreationThrottle', array( $ip ) ) ) {
 454                         wfDebug( "LoginForm::exemptFromAccountCreationThrottle: a hook allowed account creation w/o throttle\n" );
 455                 } else {
 456                         if ( ( $wgAccountCreationThrottle && $currentUser->isPingLimitable() ) ) {
 457                                 $key = wfMemcKey( 'acctcreate', 'ip', $ip );
 458                                 $value = $wgMemc->get( $key );
 459                                 if ( !$value ) {
 460                                         $wgMemc->set( $key, 0, 86400 );
 461                                 }
 462                                 if ( $value >= $wgAccountCreationThrottle ) {
 463                                         return Status::newFatal( 'acct_creation_throttle_hit', $wgAccountCreationThrottle );
 464                                 }
 465                                 $wgMemc->incr( $key );
 466                         }
 467                 }
 468
 469                 if( !$wgAuth->addUser( $u, $this->mPassword, $this->mEmail, $this->mRealName ) ) {
 470                         return Status::newFatal( 'externaldberror' );
 471                 }
 472
 473                 self::clearCreateaccountToken();
 474                 return $this->initUser( $u, false );
 475         }
 476
 477         /**
 478          * Actually add a user to the database.
 479          * Give it a User object that has been initialised with a name.
 480          *
 481          * @param $u User object.
 482          * @param $autocreate boolean -- true if this is an autocreation via auth plugin
 483          * @return Status object, with the User object in the value member on success
 484          * @private
 485          */
 486         function initUser( $u, $autocreate ) {
 487                 global $wgAuth;
 488
 489                 $status = $u->addToDatabase();
 490                 if ( !$status->isOK() ) {
 491                         return $status;
 492                 }
 493
 494                 if ( $wgAuth->allowPasswordChange() ) {
 495                         $u->setPassword( $this->mPassword );
 496                 }
 497
 498                 $u->setEmail( $this->mEmail );
 499                 $u->setRealName( $this->mRealName );
 500                 $u->setToken();
 501
 502                 $wgAuth->initUser( $u, $autocreate );
 503
 504                 if ( $this->mExtUser ) {
 505                         $this->mExtUser->linkToLocal( $u->getId() );
 506                         $email = $this->mExtUser->getPref( 'emailaddress' );
 507                         if ( $email && !$this->mEmail ) {
 508                                 $u->setEmail( $email );
 509                         }
 510                 }
 511
 512                 $u->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 513                 $u->saveSettings();
 514
 515                 # Update user count
 516                 DeferredUpdates::addUpdate( new SiteStatsUpdate( 0, 0, 0, 0, 1 ) );
 517
 518                 return Status::newGood( $u );
 519         }
 520
 521         /**
 522          * Internally authenticate the login request.
 523          *
 524          * This may create a local account as a side effect if the
 525          * authentication plugin allows transparent local account
 526          * creation.
 527          * @return int
 528          */
 529         public function authenticateUserData() {
 530                 global $wgUser, $wgAuth;
 531
 532                 $this->load();
 533
 534                 if ( $this->mUsername == '' ) {
 535                         return self::NO_NAME;
 536                 }
 537
 538                 // We require a login token to prevent login CSRF
 539                 // Handle part of this before incrementing the throttle so
 540                 // token-less login attempts don't count towards the throttle
 541                 // but wrong-token attempts do.
 542
 543                 // If the user doesn't have a login token yet, set one.
 544                 if ( !self::getLoginToken() ) {
 545                         self::setLoginToken();
 546                         return self::NEED_TOKEN;
 547                 }
 548                 // If the user didn't pass a login token, tell them we need one
 549                 if ( !$this->mToken ) {
 550                         return self::NEED_TOKEN;
 551                 }
 552
 553                 $throttleCount = self::incLoginThrottle( $this->mUsername );
 554                 if ( $throttleCount === true ) {
 555                         return self::THROTTLED;
 556                 }
 557
 558                 // Validate the login token
 559                 if ( $this->mToken !== self::getLoginToken() ) {
 560                         return self::WRONG_TOKEN;
 561                 }
 562
 563                 // Load the current user now, and check to see if we're logging in as
 564                 // the same name. This is necessary because loading the current user
 565                 // (say by calling getName()) calls the UserLoadFromSession hook, which
 566                 // potentially creates the user in the database. Until we load $wgUser,
 567                 // checking for user existence using User::newFromName($name)->getId() below
 568                 // will effectively be using stale data.
 569                 if ( $this->getUser()->getName() === $this->mUsername ) {
 570                         wfDebug( __METHOD__ . ": already logged in as {$this->mUsername}\n" );
 571                         return self::SUCCESS;
 572                 }
 573
 574                 $this->mExtUser = ExternalUser::newFromName( $this->mUsername );
 575
 576                 # TODO: Allow some magic here for invalid external names, e.g., let the
 577                 # user choose a different wiki name.
 578                 $u = User::newFromName( $this->mUsername );
 579                 if( !( $u instanceof User ) || !User::isUsableName( $u->getName() ) ) {
 580                         return self::ILLEGAL;
 581                 }
 582
 583                 $isAutoCreated = false;
 584                 if ( $u->getID() == 0 ) {
 585                         $status = $this->attemptAutoCreate( $u );
 586                         if ( $status !== self::SUCCESS ) {
 587                                 return $status;
 588                         } else {
 589                                 $isAutoCreated = true;
 590                         }
 591                 } else {
 592                         global $wgExternalAuthType, $wgAutocreatePolicy;
 593                         if ( $wgExternalAuthType && $wgAutocreatePolicy != 'never'
 594                                 && is_object( $this->mExtUser )
 595                                 && $this->mExtUser->authenticate( $this->mPassword )
 596                         ) {
 597                                 # The external user and local user have the same name and
 598                                 # password, so we assume they're the same.
 599                                 $this->mExtUser->linkToLocal( $u->getID() );
 600                         }
 601
 602                         $u->load();
 603                 }
 604
 605                 // Give general extensions, such as a captcha, a chance to abort logins
 606                 $abort = self::ABORTED;
 607                 if( !wfRunHooks( 'AbortLogin', array( $u, $this->mPassword, &$abort, &$this->mAbortLoginErrorMsg ) ) ) {
 608                         return $abort;
 609                 }
 610
 611                 global $wgBlockDisablesLogin;
 612                 if ( !$u->checkPassword( $this->mPassword ) ) {
 613                         if( $u->checkTemporaryPassword( $this->mPassword ) ) {
 614                                 // The e-mailed temporary password should not be used for actu-
 615                                 // al logins; that's a very sloppy habit, and insecure if an
 616                                 // attacker has a few seconds to click "search" on someone's o-
 617                                 // pen mail reader.
 618                                 //
 619                                 // Allow it to be used only to reset the password a single time
 620                                 // to a new value, which won't be in the user's e-mail ar-
 621                                 // chives.
 622                                 //
 623                                 // For backwards compatibility, we'll still recognize it at the
 624                                 // login form to minimize surprises for people who have been
 625                                 // logging in with a temporary password for some time.
 626                                 //
 627                                 // As a side-effect, we can authenticate the user's e-mail ad-
 628                                 // dress if it's not already done, since the temporary password
 629                                 // was sent via e-mail.
 630                                 if( !$u->isEmailConfirmed() ) {
 631                                         $u->confirmEmail();
 632                                         $u->saveSettings();
 633                                 }
 634
 635                                 // At this point we just return an appropriate code/ indicating
 636                                 // that the UI should show a password reset form; bot inter-
 637                                 // faces etc will probably just fail cleanly here.
 638                                 $retval = self::RESET_PASS;
 639                         } else {
 640                                 $retval = ( $this->mPassword == '' ) ? self::EMPTY_PASS : self::WRONG_PASS;
 641                         }
 642                 } elseif ( $wgBlockDisablesLogin && $u->isBlocked() ) {
 643                         // If we've enabled it, make it so that a blocked user cannot login
 644                         $retval = self::USER_BLOCKED;
 645                 } else {
 646                         $wgAuth->updateUser( $u );
 647                         $wgUser = $u;
 648                         // This should set it for OutputPage and the Skin
 649                         // which is needed or the personal links will be
 650                         // wrong.
 651                         $this->getContext()->setUser( $u );
 652
 653                         // Please reset throttle for successful logins, thanks!
 654                         if ( $throttleCount ) {
 655                                 self::clearLoginThrottle( $this->mUsername );
 656                         }
 657
 658                         if ( $isAutoCreated ) {
 659                                 // Must be run after $wgUser is set, for correct new user log
 660                                 wfRunHooks( 'AuthPluginAutoCreate', array( $u ) );
 661                         }
 662
 663                         $retval = self::SUCCESS;
 664                 }
 665                 wfRunHooks( 'LoginAuthenticateAudit', array( $u, $this->mPassword, $retval ) );
 666                 return $retval;
 667         }
 668
 669         /**
 670          * Increment the login attempt throttle hit count for the (username,current IP)
 671          * tuple unless the throttle was already reached.
 672          * @param string $username The user name
 673          * @return Bool|Integer The integer hit count or True if it is already at the limit
 674          */
 675         public static function incLoginThrottle( $username ) {
 676                 global $wgPasswordAttemptThrottle, $wgMemc, $wgRequest;
 677                 $username = trim( $username ); // sanity
 678
 679                 $throttleCount = 0;
 680                 if ( is_array( $wgPasswordAttemptThrottle ) ) {
 681                         $throttleKey = wfMemcKey( 'password-throttle', $wgRequest->getIP(), md5( $username ) );
 682                         $count = $wgPasswordAttemptThrottle['count'];
 683                         $period = $wgPasswordAttemptThrottle['seconds'];
 684
 685                         $throttleCount = $wgMemc->get( $throttleKey );
 686                         if ( !$throttleCount ) {
 687                                 $wgMemc->add( $throttleKey, 1, $period ); // start counter
 688                         } elseif ( $throttleCount < $count ) {
 689                                 $wgMemc->incr( $throttleKey );
 690                         } elseif ( $throttleCount >= $count ) {
 691                                 return true;
 692                         }
 693                 }
 694
 695                 return $throttleCount;
 696         }
 697
 698         /**
 699          * Clear the login attempt throttle hit count for the (username,current IP) tuple.
 700          * @param string $username The user name
 701          * @return void
 702          */
 703         public static function clearLoginThrottle( $username ) {
 704                 global $wgMemc, $wgRequest;
 705                 $username = trim( $username ); // sanity
 706
 707                 $throttleKey = wfMemcKey( 'password-throttle', $wgRequest->getIP(), md5( $username ) );
 708                 $wgMemc->delete( $throttleKey );
 709         }
 710
 711         /**
 712          * Attempt to automatically create a user on login. Only succeeds if there
 713          * is an external authentication method which allows it.
 714          *
 715          * @param $user User
 716          *
 717          * @return integer Status code
 718          */
 719         function attemptAutoCreate( $user ) {
 720                 global $wgAuth, $wgAutocreatePolicy;
 721
 722                 if ( $this->getUser()->isBlockedFromCreateAccount() ) {
 723                         wfDebug( __METHOD__ . ": user is blocked from account creation\n" );
 724                         return self::CREATE_BLOCKED;
 725                 }
 726
 727                 /**
 728                  * If the external authentication plugin allows it, automatically cre-
 729                  * ate a new account for users that are externally defined but have not
 730                  * yet logged in.
 731                  */
 732                 if ( $this->mExtUser ) {
 733                         # mExtUser is neither null nor false, so use the new ExternalAuth
 734                         # system.
 735                         if ( $wgAutocreatePolicy == 'never' ) {
 736                                 return self::NOT_EXISTS;
 737                         }
 738                         if ( !$this->mExtUser->authenticate( $this->mPassword ) ) {
 739                                 return self::WRONG_PLUGIN_PASS;
 740                         }
 741                 } else {
 742                         # Old AuthPlugin.
 743                         if ( !$wgAuth->autoCreate() ) {
 744                                 return self::NOT_EXISTS;
 745                         }
 746                         if ( !$wgAuth->userExists( $user->getName() ) ) {
 747                                 wfDebug( __METHOD__ . ": user does not exist\n" );
 748                                 return self::NOT_EXISTS;
 749                         }
 750                         if ( !$wgAuth->authenticate( $user->getName(), $this->mPassword ) ) {
 751                                 wfDebug( __METHOD__ . ": \$wgAuth->authenticate() returned false, aborting\n" );
 752                                 return self::WRONG_PLUGIN_PASS;
 753                         }
 754                 }
 755
 756                 $abortError = '';
 757                 if( !wfRunHooks( 'AbortAutoAccount', array( $user, &$abortError ) ) ) {
 758                         // Hook point to add extra creation throttles and blocks
 759                         wfDebug( "LoginForm::attemptAutoCreate: a hook blocked creation: $abortError\n" );
 760                         $this->mAbortLoginErrorMsg = $abortError;
 761                         return self::ABORTED;
 762                 }
 763
 764                 wfDebug( __METHOD__ . ": creating account\n" );
 765                 $status = $this->initUser( $user, true );
 766
 767                 if ( !$status->isOK() ) {
 768                         $errors = $status->getErrorsByType( 'error' );
 769                         $this->mAbortLoginErrorMsg = $errors[0]['message'];
 770                         return self::ABORTED;
 771                 }
 772
 773                 return self::SUCCESS;
 774         }
 775
 776         function processLogin() {
 777                 global $wgMemc, $wgLang, $wgSecureLogin;
 778
 779                 switch ( $this->authenticateUserData() ) {
 780                         case self::SUCCESS:
 781                                 # We've verified now, update the real record
 782                                 $user = $this->getUser();
 783                                 if( (bool)$this->mRemember != $user->getBoolOption( 'rememberpassword' ) ) {
 784                                         $user->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 785                                         $user->saveSettings();
 786                                 } else {
 787                                         $user->invalidateCache();
 788                                 }
 789
 790                                 if( $wgSecureLogin && !$this->mStickHTTPS ) {
 791                                         $user->setCookies( null, false );
 792                                 } else {
 793                                         $user->setCookies();
 794                                 }
 795                                 self::clearLoginToken();
 796
 797                                 // Reset the throttle
 798                                 $request = $this->getRequest();
 799                                 $key = wfMemcKey( 'password-throttle', $request->getIP(), md5( $this->mUsername ) );
 800                                 $wgMemc->delete( $key );
 801
 802                                 if( $this->hasSessionCookie() || $this->mSkipCookieCheck ) {
 803                                         /* Replace the language object to provide user interface in
 804                                          * correct language immediately on this first page load.
 805                                          */
 806                                         $code = $request->getVal( 'uselang', $user->getOption( 'language' ) );
 807                                         $userLang = Language::factory( $code );
 808                                         $wgLang = $userLang;
 809                                         $this->getContext()->setLanguage( $userLang );
 810                                         // Reset SessionID on Successful login (bug 40995)
 811                                         $this->renewSessionId();
 812                                         $this->successfulLogin();
 813                                 } else {
 814                                         $this->cookieRedirectCheck( 'login' );
 815                                 }
 816                                 break;
 817
 818                         case self::NEED_TOKEN:
 819                                 $this->mainLoginForm( $this->msg( 'nocookiesforlogin' )->parse() );
 820                                 break;
 821                         case self::WRONG_TOKEN:
 822                                 $this->mainLoginForm( $this->msg( 'sessionfailure' )->text() );
 823                                 break;
 824                         case self::NO_NAME:
 825                         case self::ILLEGAL:
 826                                 $this->mainLoginForm( $this->msg( 'noname' )->text() );
 827                                 break;
 828                         case self::WRONG_PLUGIN_PASS:
 829                                 $this->mainLoginForm( $this->msg( 'wrongpassword' )->text() );
 830                                 break;
 831                         case self::NOT_EXISTS:
 832                                 if( $this->getUser()->isAllowed( 'createaccount' ) ) {
 833                                         $this->mainLoginForm( $this->msg( 'nosuchuser',
 834                                                 wfEscapeWikiText( $this->mUsername ) )->parse() );
 835                                 } else {
 836                                         $this->mainLoginForm( $this->msg( 'nosuchusershort',
 837                                                 wfEscapeWikiText( $this->mUsername ) )->text() );
 838                                 }
 839                                 break;
 840                         case self::WRONG_PASS:
 841                                 $this->mainLoginForm( $this->msg( 'wrongpassword' )->text() );
 842                                 break;
 843                         case self::EMPTY_PASS:
 844                                 $this->mainLoginForm( $this->msg( 'wrongpasswordempty' )->text() );
 845                                 break;
 846                         case self::RESET_PASS:
 847                                 $this->resetLoginForm( $this->msg( 'resetpass_announce' )->text() );
 848                                 break;
 849                         case self::CREATE_BLOCKED:
 850                                 $this->userBlockedMessage( $this->getUser()->mBlock );
 851                                 break;
 852                         case self::THROTTLED:
 853                                 $this->mainLoginForm( $this->msg( 'login-throttled' )->text() );
 854                                 break;
 855                         case self::USER_BLOCKED:
 856                                 $this->mainLoginForm( $this->msg( 'login-userblocked',
 857                                         $this->mUsername )->escaped() );
 858                                 break;
 859                         case self::ABORTED:
 860                                 $this->mainLoginForm( $this->msg( $this->mAbortLoginErrorMsg )->text() );
 861                                 break;
 862                         default:
 863                                 throw new MWException( 'Unhandled case value' );
 864                 }
 865         }
 866
 867         /**
 868          * @param $error string
 869          */
 870         function resetLoginForm( $error ) {
 871                 $this->getOutput()->addHTML( Xml::element( 'p', array( 'class' => 'error' ), $error ) );
 872                 $reset = new SpecialChangePassword();
 873                 $reset->setContext( $this->getContext() );
 874                 $reset->execute( null );
 875         }
 876
 877         /**
 878          * @param $u User object
 879          * @param $throttle Boolean
 880          * @param string $emailTitle message name of email title
 881          * @param string $emailText message name of email text
 882          * @return Status object
 883          */
 884         function mailPasswordInternal( $u, $throttle = true, $emailTitle = 'passwordremindertitle', $emailText = 'passwordremindertext' ) {
 885                 global $wgCanonicalServer, $wgScript, $wgNewPasswordExpiry;
 886
 887                 if ( $u->getEmail() == '' ) {
 888                         return Status::newFatal( 'noemail', $u->getName() );
 889                 }
 890                 $ip = $this->getRequest()->getIP();
 891                 if( !$ip ) {
 892                         return Status::newFatal( 'badipaddress' );
 893                 }
 894
 895                 $currentUser = $this->getUser();
 896                 wfRunHooks( 'User::mailPasswordInternal', array( &$currentUser, &$ip, &$u ) );
 897
 898                 $np = $u->randomPassword();
 899                 $u->setNewpassword( $np, $throttle );
 900                 $u->saveSettings();
 901                 $userLanguage = $u->getOption( 'language' );
 902                 $m = $this->msg( $emailText, $ip, $u->getName(), $np, '<' . $wgCanonicalServer . $wgScript . '>',
 903                         round( $wgNewPasswordExpiry / 86400 ) )->inLanguage( $userLanguage )->text();
 904                 $result = $u->sendMail( $this->msg( $emailTitle )->inLanguage( $userLanguage )->text(), $m );
 905
 906                 return $result;
 907         }
 908
 909         /**
 910          * Run any hooks registered for logins, then HTTP redirect to
 911          * $this->mReturnTo (or Main Page if that's undefined).  Formerly we had a
 912          * nice message here, but that's really not as useful as just being sent to
 913          * wherever you logged in from.  It should be clear that the action was
 914          * successful, given the lack of error messages plus the appearance of your
 915          * name in the upper right.
 916          *
 917          * @private
 918          */
 919         function successfulLogin() {
 920                 # Run any hooks; display injected HTML if any, else redirect
 921                 $currentUser = $this->getUser();
 922                 $injected_html = '';
 923                 wfRunHooks( 'UserLoginComplete', array( &$currentUser, &$injected_html ) );
 924
 925                 if( $injected_html !== '' ) {
 926                         $this->displaySuccessfulAction( $this->msg( 'loginsuccesstitle' ),
 927                                 'loginsuccess', $injected_html );
 928                 } else {
 929                         $this->executeReturnTo( 'successredirect' );
 930                 }
 931         }
 932
 933         /**
 934          * Run any hooks registered for logins, then display a message welcoming
 935          * the user.
 936          *
 937          * @private
 938          */
 939         function successfulCreation() {
 940                 # Run any hooks; display injected HTML
 941                 $currentUser = $this->getUser();
 942                 $injected_html = '';
 943                 $welcome_creation_msg = 'welcomecreation-msg';
 944
 945                 wfRunHooks( 'UserLoginComplete', array( &$currentUser, &$injected_html ) );
 946
 947                 /**
 948                  * Let any extensions change what message is shown.
 949                  * @see https://www.mediawiki.org/wiki/Manual:Hooks/BeforeWelcomeCreation
 950                  * @since 1.18
 951                  */
 952                 wfRunHooks( 'BeforeWelcomeCreation', array( &$welcome_creation_msg, &$injected_html ) );
 953
 954                 $this->displaySuccessfulAction( $this->msg( 'welcomeuser', $this->getUser()->getName() ),
 955                         $welcome_creation_msg, $injected_html );
 956         }
 957
 958         /**
 959          * Display an "successful action" page.
 960          *
 961          * @param string|Message $title page's title
 962          * @param $msgname string
 963          * @param $injected_html string
 964          */
 965         private function displaySuccessfulAction( $title, $msgname, $injected_html ) {
 966                 $out = $this->getOutput();
 967                 $out->setPageTitle( $title );
 968                 if ( $msgname ) {
 969                         $out->addWikiMsg( $msgname, wfEscapeWikiText( $this->getUser()->getName() ) );
 970                 }
 971
 972                 $out->addHTML( $injected_html );
 973
 974                 $this->executeReturnTo( 'success' );
 975         }
 976
 977         /**
 978          * Output a message that informs the user that they cannot create an account because
 979          * there is a block on them or their IP which prevents account creation.  Note that
 980          * User::isBlockedFromCreateAccount(), which gets this block, ignores the 'hardblock'
 981          * setting on blocks (bug 13611).
 982          * @param $block Block the block causing this error
 983          * @throws ErrorPageError
 984          */
 985         function userBlockedMessage( Block $block ) {
 986                 # Let's be nice about this, it's likely that this feature will be used
 987                 # for blocking large numbers of innocent people, e.g. range blocks on
 988                 # schools. Don't blame it on the user. There's a small chance that it
 989                 # really is the user's fault, i.e. the username is blocked and they
 990                 # haven't bothered to log out before trying to create an account to
 991                 # evade it, but we'll leave that to their guilty conscience to figure
 992                 # out.
 993                 throw new ErrorPageError(
 994                         'cantcreateaccounttitle',
 995                         'cantcreateaccount-text',
 996                         array(
 997                                 $block->getTarget(),
 998                                 $block->mReason ? $block->mReason : $this->msg( 'blockednoreason' )->text(),
 999                                 $block->getByName()
1000                         )
1001                 );
1002         }
1003
1004         /**
1005          * Add a "return to" link or redirect to it.
1006          *
1007          * @param $type string, one of the following:
1008          *    - error: display a return to link ignoring $wgRedirectOnLogin
1009          *    - success: display a return to link using $wgRedirectOnLogin if needed
1010          *    - successredirect: send an HTTP redirect using $wgRedirectOnLogin if needed
1011          */
1012         private function executeReturnTo( $type ) {
1013                 global $wgRedirectOnLogin, $wgSecureLogin;
1014
1015                 if ( $type != 'error' && $wgRedirectOnLogin !== null ) {
1016                         $returnTo = $wgRedirectOnLogin;
1017                         $returnToQuery = array();
1018                 } else {
1019                         $returnTo = $this->mReturnTo;
1020                         $returnToQuery = wfCgiToArray( $this->mReturnToQuery );
1021                 }
1022
1023                 $returnToTitle = Title::newFromText( $returnTo );
1024                 if ( !$returnToTitle ) {
1025                         $returnToTitle = Title::newMainPage();
1026                 }
1027
1028                 if ( $wgSecureLogin && !$this->mStickHTTPS ) {
1029                         $options = array( 'http' );
1030                         $proto = PROTO_HTTP;
1031                 } elseif( $wgSecureLogin ) {
1032                         $options = array( 'https' );
1033                         $proto = PROTO_HTTPS;
1034                 } else {
1035                         $options = array();
1036                         $proto = PROTO_RELATIVE;
1037                 }
1038
1039                 if ( $type == 'successredirect' ) {
1040                         $redirectUrl = $returnToTitle->getFullURL( $returnToQuery, false, $proto );
1041                         $this->getOutput()->redirect( $redirectUrl );
1042                 } else {
1043                         $this->getOutput()->addReturnTo( $returnToTitle, $returnToQuery, null, $options );
1044                 }
1045         }
1046
1047         /**
1048          * Whether to show "Agora"-style forms.
1049          * ?useAgora=1 forces Agora style, ?useAgora=0 forces old-style,
1050          * otherwise consult $wgAgoraUserLogin or $wgAgoraCreateAccount.
1051          * @return Boolean
1052          */
1053         private function shouldShowAgora() {
1054                 global $wgRequest, $wgAgoraUserLogin, $wgAgoraCreateAccount;
1055                 $override = $wgRequest->getBool( 'useAgora' );
1056                 if ( $override !== null ) {
1057                         return $override;
1058                 }
1059                 if ( $this->mType == 'signup' ) {
1060                         return (boolean) $wgAgoraCreateAccount;
1061                 } else {
1062                         return (boolean) $wgAgoraUserLogin;
1063                 }
1064         }
1065
1066         /**
1067          */
1068         private function isAgoraExtensionCSSAvailable() {
1069                 global $wgResourceModules;
1070                 return array_key_exists( 'ext.agora.base', $wgResourceModules );
1071         }
1072
1073         /**
1074          * @private
1075          */
1076         function mainLoginForm( $msg, $msgtype = 'error' ) {
1077                 global $wgEnableEmail, $wgEnableUserEmail;
1078                 global $wgHiddenPrefs, $wgLoginLanguageSelector;
1079                 global $wgAuth, $wgEmailConfirmToEdit, $wgCookieExpiration;
1080                 global $wgSecureLogin, $wgSecureLoginDefaultHTTPS, $wgPasswordResetRoutes;
1081
1082                 $titleObj = $this->getTitle();
1083                 $user = $this->getUser();
1084                 $out = $this->getOutput();
1085
1086                 if ( $this->mType == 'signup' ) {
1087                         // Block signup here if in readonly. Keeps user from
1088                         // going through the process (filling out data, etc)
1089                         // and being informed later.
1090                         $permErrors = $titleObj->getUserPermissionsErrors( 'createaccount', $user, true );
1091                         if ( count( $permErrors ) ) {
1092                                 throw new PermissionsError( 'createaccount', $permErrors );
1093                         } elseif ( $user->isBlockedFromCreateAccount() ) {
1094                                 $this->userBlockedMessage( $user->isBlockedFromCreateAccount() );
1095                                 return;
1096                         } elseif ( wfReadOnly() ) {
1097                                 throw new ReadOnlyError;
1098                         }
1099                 }
1100
1101                 // Pre-fill username (if not creating an account, bug 44775).
1102                 if ( $this->mUsername == '' && $this->mType != 'signup' ) {
1103                         if ( $user->isLoggedIn() ) {
1104                                 $this->mUsername = $user->getName();
1105                         } else {
1106                                 $this->mUsername = $this->getRequest()->getCookie( 'UserName' );
1107                         }
1108                 }
1109
1110                 if ( $this->mType == 'signup' ) {
1111                         $template = $this->mShowAgora
1112                                 ? new UsercreateTemplateAgora() : new UsercreateTemplate();
1113                         $q = 'action=submitlogin&type=signup';
1114                         $linkq = 'type=login';
1115                         $linkmsg = 'gotaccount';
1116                         $out->addModules( 'mediawiki.special.userlogin.signup' );
1117                 } else {
1118                         $template = $this->mShowAgora
1119                                 ? new UserloginTemplateAgora() : new UserloginTemplate();
1120                         $q = 'action=submitlogin&type=login';
1121                         $linkq = 'type=signup';
1122                         $linkmsg = 'nologin';
1123                 }
1124                 if ( $this->mShowAgora ) {
1125                         $out->addModules( array(
1126                                 // core Agora look, what gets loaded is dependent on skin.
1127                                 'mediawiki.ui',
1128                                 $this->mType === 'signup' ?
1129                                         'mediawiki.special.createaccount.agora' :
1130                                         'mediawiki.special.userlogin.agora'
1131                         ) );
1132                 }
1133
1134                 if ( $this->mReturnTo !== '' ) {
1135                         $returnto = '&returnto=' . wfUrlencode( $this->mReturnTo );
1136                         if ( $this->mReturnToQuery !== '' ) {
1137                                 $returnto .= '&returntoquery=' .
1138                                         wfUrlencode( $this->mReturnToQuery );
1139                         }
1140                         $q .= $returnto;
1141                         $linkq .= $returnto;
1142                 }
1143
1144                 # Don't show a "create account" link if the user can't.
1145                 if( $this->showCreateOrLoginLink( $user ) ) {
1146                         # Pass any language selection on to the mode switch link
1147                         if( $wgLoginLanguageSelector && $this->mLanguage ) {
1148                                 $linkq .= '&uselang=' . $this->mLanguage;
1149                         }
1150                         if ( !$this->mShowAgora ) {
1151                                 $link = Html::element( 'a', array( 'href' => $titleObj->getLocalURL( $linkq ) ),
1152                                         $this->msg( $linkmsg . 'link' )->text() ); # Calling either 'gotaccountlink' or 'nologinlink'
1153
1154                                         $template->set( 'link', $this->msg( $linkmsg )->rawParams( $link )->parse() );
1155
1156                         } else {
1157                                 // Supply hyperlink, login template creates the button.
1158                                 // (The template 'link' key is obsolete in the Agora design.)
1159                                 $template->set( 'createOrLoginHref', $titleObj->getLocalURL( $linkq ) );
1160                         }
1161                 } else {
1162                         $template->set( 'link', '' );
1163                 }
1164
1165                 // Decide if we default stickHTTPS on
1166                 if ( $wgSecureLoginDefaultHTTPS && $this->mAction != 'submitlogin' && !$this->mLoginattempt ) {
1167                         $this->mStickHTTPS = true;
1168                 }
1169
1170                 $resetLink = $this->mType == 'signup'
1171                         ? null
1172                         : is_array( $wgPasswordResetRoutes ) && in_array( true, array_values( $wgPasswordResetRoutes ) );
1173
1174                 $template->set( 'header', '' );
1175                 $template->set( 'name', $this->mUsername );
1176                 $template->set( 'password', $this->mPassword );
1177                 $template->set( 'retype', $this->mRetype );
1178                 $template->set( 'createemailset', $this->mCreateaccountMail );
1179                 $template->set( 'email', $this->mEmail );
1180                 $template->set( 'realname', $this->mRealName );
1181                 $template->set( 'domain', $this->mDomain );
1182                 $template->set( 'reason', $this->mReason );
1183
1184                 $template->set( 'action', $titleObj->getLocalURL( $q ) );
1185                 $template->set( 'message', $msg );
1186                 $template->set( 'messagetype', $msgtype );
1187                 $template->set( 'createemail', $wgEnableEmail && $user->isLoggedIn() );
1188                 $template->set( 'userealname', !in_array( 'realname', $wgHiddenPrefs ) );
1189                 $template->set( 'useemail', $wgEnableEmail );
1190                 $template->set( 'emailrequired', $wgEmailConfirmToEdit );
1191                 $template->set( 'emailothers', $wgEnableUserEmail );
1192                 $template->set( 'canreset', $wgAuth->allowPasswordChange() );
1193                 $template->set( 'resetlink', $resetLink );
1194                 $template->set( 'canremember', ( $wgCookieExpiration > 0 ) );
1195                 $template->set( 'usereason', $user->isLoggedIn() );
1196                 $template->set( 'remember', $user->getOption( 'rememberpassword' ) || $this->mRemember );
1197                 $template->set( 'cansecurelogin', ( $wgSecureLogin === true ) );
1198                 $template->set( 'stickHTTPS', $this->mStickHTTPS );
1199
1200                 if ( $this->mType == 'signup' ) {
1201                         if ( !self::getCreateaccountToken() ) {
1202                                 self::setCreateaccountToken();
1203                         }
1204                         $template->set( 'token', self::getCreateaccountToken() );
1205                 } else {
1206                         if ( !self::getLoginToken() ) {
1207                                 self::setLoginToken();
1208                         }
1209                         $template->set( 'token', self::getLoginToken() );
1210                 }
1211
1212                 # Prepare language selection links as needed
1213                 if( $wgLoginLanguageSelector ) {
1214                         $template->set( 'languages', $this->makeLanguageSelector() );
1215                         if( $this->mLanguage ) {
1216                                 $template->set( 'uselang', $this->mLanguage );
1217                         }
1218                 }
1219
1220                 $template->set( 'secureLoginUrl', $this->mSecureLoginUrl );
1221                 // Use loginend-https for HTTPS requests if it's not blank, loginend otherwise
1222                 // Ditto for signupend.  Agora forms use neither.
1223                 $usingHTTPS = WebRequest::detectProtocol() == 'https';
1224                 $loginendHTTPS = $this->msg( 'loginend-https' );
1225                 $signupendHTTPS = $this->msg( 'signupend-https' );
1226                 if ( $usingHTTPS && !$loginendHTTPS->isBlank() ) {
1227                         $template->set( 'loginend', $loginendHTTPS->parse() );
1228                 } else {
1229                         $template->set( 'loginend', $this->msg( 'loginend' )->parse() );
1230                 }
1231                 if ( $usingHTTPS && !$signupendHTTPS->isBlank() ) {
1232                         $template->set( 'signupend', $signupendHTTPS->parse() );
1233                 } else {
1234                         $template->set( 'signupend', $this->msg( 'signupend' )->parse() );
1235                 }
1236
1237                 // Give authentication and captcha plugins a chance to modify the form
1238                 $wgAuth->modifyUITemplate( $template, $this->mType );
1239                 if ( $this->mType == 'signup' ) {
1240                         wfRunHooks( 'UserCreateForm', array( &$template ) );
1241                 } else {
1242                         wfRunHooks( 'UserLoginForm', array( &$template ) );
1243                 }
1244
1245                 $out->disallowUserJs(); // just in case...
1246                 $out->addTemplate( $template );
1247         }
1248
1249         /**
1250          * @private
1251          *
1252          * @param $user User
1253          *
1254          * @return Boolean
1255          */
1256         function showCreateOrLoginLink( &$user ) {
1257                 if( $this->mType == 'signup' ) {
1258                         return true;
1259                 } elseif( $user->isAllowed( 'createaccount' ) ) {
1260                         return true;
1261                 } else {
1262                         return false;
1263                 }
1264         }
1265
1266         /**
1267          * Check if a session cookie is present.
1268          *
1269          * This will not pick up a cookie set during _this_ request, but is meant
1270          * to ensure that the client is returning the cookie which was set on a
1271          * previous pass through the system.
1272          *
1273          * @private
1274          * @return bool
1275          */
1276         function hasSessionCookie() {
1277                 global $wgDisableCookieCheck;
1278                 return $wgDisableCookieCheck ? true : $this->getRequest()->checkSessionCookie();
1279         }
1280
1281         /**
1282          * Get the login token from the current session
1283          * @return Mixed
1284          */
1285         public static function getLoginToken() {
1286                 global $wgRequest;
1287                 return $wgRequest->getSessionData( 'wsLoginToken' );
1288         }
1289
1290         /**
1291          * Randomly generate a new login token and attach it to the current session
1292          */
1293         public static function setLoginToken() {
1294                 global $wgRequest;
1295                 // Generate a token directly instead of using $user->editToken()
1296                 // because the latter reuses $_SESSION['wsEditToken']
1297                 $wgRequest->setSessionData( 'wsLoginToken', MWCryptRand::generateHex( 32 ) );
1298         }
1299
1300         /**
1301          * Remove any login token attached to the current session
1302          */
1303         public static function clearLoginToken() {
1304                 global $wgRequest;
1305                 $wgRequest->setSessionData( 'wsLoginToken', null );
1306         }
1307
1308         /**
1309          * Get the createaccount token from the current session
1310          * @return Mixed
1311          */
1312         public static function getCreateaccountToken() {
1313                 global $wgRequest;
1314                 return $wgRequest->getSessionData( 'wsCreateaccountToken' );
1315         }
1316
1317         /**
1318          * Randomly generate a new createaccount token and attach it to the current session
1319          */
1320         public static function setCreateaccountToken() {
1321                 global $wgRequest;
1322                 $wgRequest->setSessionData( 'wsCreateaccountToken', MWCryptRand::generateHex( 32 ) );
1323         }
1324
1325         /**
1326          * Remove any createaccount token attached to the current session
1327          */
1328         public static function clearCreateaccountToken() {
1329                 global $wgRequest;
1330                 $wgRequest->setSessionData( 'wsCreateaccountToken', null );
1331         }
1332
1333         /**
1334          * Renew the user's session id, using strong entropy
1335          */
1336         private function renewSessionId() {
1337                 global $wgSecureLogin, $wgCookieSecure;
1338                 if( $wgSecureLogin && !$this->mStickHTTPS ) {
1339                         $wgCookieSecure = false;
1340                 }
1341
1342                 // If either we don't trust PHP's entropy, or if we need
1343                 // to change cookie settings when logging in because of
1344                 // wpStickHTTPS, then change the session ID manually.
1345                 $cookieParams = session_get_cookie_params();
1346                 if ( wfCheckEntropy() && $wgCookieSecure == $cookieParams['secure'] ) {
1347                         session_regenerate_id( false );
1348                 } else {
1349                         $tmp = $_SESSION;
1350                         session_destroy();
1351                         wfSetupSession( MWCryptRand::generateHex( 32 ) );
1352                         $_SESSION = $tmp;
1353                 }
1354         }
1355
1356         /**
1357          * @private
1358          */
1359         function cookieRedirectCheck( $type ) {
1360                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
1361                 $query = array( 'wpCookieCheck' => $type );
1362                 if ( $this->mReturnTo !== '' ) {
1363                         $query['returnto'] = $this->mReturnTo;
1364                         $query['returntoquery'] = $this->mReturnToQuery;
1365                 }
1366                 $check = $titleObj->getFullURL( $query );
1367
1368                 $this->getOutput()->redirect( $check );
1369         }
1370
1371         /**
1372          * @private
1373          */
1374         function onCookieRedirectCheck( $type ) {
1375                 if ( !$this->hasSessionCookie() ) {
1376                         if ( $type == 'new' ) {
1377                                 $this->mainLoginForm( $this->msg( 'nocookiesnew' )->parse() );
1378                         } elseif ( $type == 'login' ) {
1379                                 $this->mainLoginForm( $this->msg( 'nocookieslogin' )->parse() );
1380                         } else {
1381                                 # shouldn't happen
1382                                 $this->mainLoginForm( $this->msg( 'error' )->text() );
1383                         }
1384                 } else {
1385                         $this->successfulLogin();
1386                 }
1387         }
1388
1389         /**
1390          * Produce a bar of links which allow the user to select another language
1391          * during login/registration but retain "returnto"
1392          *
1393          * @return string
1394          */
1395         function makeLanguageSelector() {
1396                 $msg = $this->msg( 'loginlanguagelinks' )->inContentLanguage();
1397                 if( !$msg->isBlank() ) {
1398                         $langs = explode( "\n", $msg->text() );
1399                         $links = array();
1400                         foreach( $langs as $lang ) {
1401                                 $lang = trim( $lang, '* ' );
1402                                 $parts = explode( '|', $lang );
1403                                 if ( count( $parts ) >= 2 ) {
1404                                         $links[] = $this->makeLanguageSelectorLink( $parts[0], trim( $parts[1] ) );
1405                                 }
1406                         }
1407                         return count( $links ) > 0 ? $this->msg( 'loginlanguagelabel' )->rawParams(
1408                                 $this->getLanguage()->pipeList( $links ) )->escaped() : '';
1409                 } else {
1410                         return '';
1411                 }
1412         }
1413
1414         /**
1415          * Create a language selector link for a particular language
1416          * Links back to this page preserving type and returnto
1417          *
1418          * @param string $text Link text
1419          * @param string $lang Language code
1420          * @return string
1421          */
1422         function makeLanguageSelectorLink( $text, $lang ) {
1423                 if( $this->getLanguage()->getCode() == $lang ) {
1424                         // no link for currently used language
1425                         return htmlspecialchars( $text );
1426                 }
1427                 $query = array( 'uselang' => $lang );
1428                 if( $this->mType == 'signup' ) {
1429                         $query['type'] = 'signup';
1430                 }
1431                 if( $this->mReturnTo !== '' ) {
1432                         $query['returnto'] = $this->mReturnTo;
1433                         $query['returntoquery'] = $this->mReturnToQuery;
1434                 }
1435
1436                 $attr = array();
1437                 $targetLanguage = Language::factory( $lang );
1438                 $attr['lang'] = $attr['hreflang'] = $targetLanguage->getHtmlCode();
1439
1440                 return Linker::linkKnown(
1441                         $this->getTitle(),
1442                         htmlspecialchars( $text ),
1443                         $attr,
1444                         $query
1445                 );
1446         }
1447
1448         protected function getGroupName() {
1449                 return 'login';
1450         }
1451 }