includes/SpecialUserlogin.php

   1 <?php
   2 /**
   3  *
   4  * @package MediaWiki
   5  * @subpackage SpecialPage
   6  */
   7
   8 /**
   9  * constructor
  10  */
  11 function wfSpecialUserlogin() {
  12         global $wgCommandLineMode;
  13         global $wgRequest;
  14         if( !$wgCommandLineMode && !isset( $_COOKIE[session_name()] )  ) {
  15                 wfSetupSession();
  16         }
  17
  18         $form = new LoginForm( $wgRequest );
  19         $form->execute();
  20 }
  21
  22 /**
  23  *
  24  * @package MediaWiki
  25  * @subpackage SpecialPage
  26  */
  27
  28 class LoginForm {
  29
  30         const SUCCESS = 0;
  31         const NO_NAME = 1;
  32         const ILLEGAL = 2;
  33         const WRONG_PLUGIN_PASS = 3;
  34         const NOT_EXISTS = 4;
  35         const WRONG_PASS = 5;
  36         const EMPTY_PASS = 6;
  37
  38         var $mName, $mPassword, $mRetype, $mReturnTo, $mCookieCheck, $mPosted;
  39         var $mAction, $mCreateaccount, $mCreateaccountMail, $mMailmypassword;
  40         var $mLoginattempt, $mRemember, $mEmail, $mDomain, $mLanguage;
  41
  42         /**
  43          * Constructor
  44          * @param webrequest $request A webrequest object passed by reference
  45          */
  46         function LoginForm( &$request ) {
  47                 global $wgLang, $wgAllowRealName, $wgEnableEmail;
  48                 global $wgAuth;
  49
  50                 $this->mType = $request->getText( 'type' );
  51                 $this->mName = $request->getText( 'wpName' );
  52                 $this->mPassword = $request->getText( 'wpPassword' );
  53                 $this->mRetype = $request->getText( 'wpRetype' );
  54                 $this->mDomain = $request->getText( 'wpDomain' );
  55                 $this->mReturnTo = $request->getVal( 'returnto' );
  56                 $this->mCookieCheck = $request->getVal( 'wpCookieCheck' );
  57                 $this->mPosted = $request->wasPosted();
  58                 $this->mCreateaccount = $request->getCheck( 'wpCreateaccount' );
  59                 $this->mCreateaccountMail = $request->getCheck( 'wpCreateaccountMail' )
  60                                             && $wgEnableEmail;
  61                 $this->mMailmypassword = $request->getCheck( 'wpMailmypassword' )
  62                                          && $wgEnableEmail;
  63                 $this->mLoginattempt = $request->getCheck( 'wpLoginattempt' );
  64                 $this->mAction = $request->getVal( 'action' );
  65                 $this->mRemember = $request->getCheck( 'wpRemember' );
  66                 $this->mLanguage = $request->getText( 'uselang' );
  67
  68                 if( $wgEnableEmail ) {
  69                         $this->mEmail = $request->getText( 'wpEmail' );
  70                 } else {
  71                         $this->mEmail = '';
  72                 }
  73                 if( $wgAllowRealName ) {
  74                     $this->mRealName = $request->getText( 'wpRealName' );
  75                 } else {
  76                     $this->mRealName = '';
  77                 }
  78
  79                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
  80                         $this->mDomain = 'invaliddomain';
  81                 }
  82                 $wgAuth->setDomain( $this->mDomain );
  83
  84                 # When switching accounts, it sucks to get automatically logged out
  85                 if( $this->mReturnTo == $wgLang->specialPage( 'Userlogout' ) ) {
  86                         $this->mReturnTo = '';
  87                 }
  88         }
  89
  90         function execute() {
  91                 if ( !is_null( $this->mCookieCheck ) ) {
  92                         $this->onCookieRedirectCheck( $this->mCookieCheck );
  93                         return;
  94                 } else if( $this->mPosted ) {
  95                         if( $this->mCreateaccount ) {
  96                                 return $this->addNewAccount();
  97                         } else if ( $this->mCreateaccountMail ) {
  98                                 return $this->addNewAccountMailPassword();
  99                         } else if ( $this->mMailmypassword ) {
 100                                 return $this->mailPassword();
 101                         } else if ( ( 'submitlogin' == $this->mAction ) || $this->mLoginattempt ) {
 102                                 return $this->processLogin();
 103                         }
 104                 }
 105                 $this->mainLoginForm( '' );
 106         }
 107
 108         /**
 109          * @private
 110          */
 111         function addNewAccountMailPassword() {
 112                 global $wgOut;
 113
 114                 if ('' == $this->mEmail) {
 115                         $this->mainLoginForm( wfMsg( 'noemail', htmlspecialchars( $this->mName ) ) );
 116                         return;
 117                 }
 118
 119                 $u = $this->addNewaccountInternal();
 120
 121                 if ($u == NULL) {
 122                         return;
 123                 }
 124
 125                 $u->saveSettings();
 126                 $result = $this->mailPasswordInternal( $u, false );
 127
 128                 wfRunHooks( 'AddNewAccount', array( $u ) );
 129
 130                 $wgOut->setPageTitle( wfMsg( 'accmailtitle' ) );
 131                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 132                 $wgOut->setArticleRelated( false );
 133
 134                 if( WikiError::isError( $result ) ) {
 135                         $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
 136                 } else {
 137                         $wgOut->addWikiText( wfMsg( 'accmailtext', $u->getName(), $u->getEmail() ) );
 138                         $wgOut->returnToMain( false );
 139                 }
 140                 $u = 0;
 141         }
 142
 143
 144         /**
 145          * @private
 146          */
 147         function addNewAccount() {
 148                 global $wgUser, $wgEmailAuthentication;
 149
 150                 # Create the account and abort if there's a problem doing so
 151                 $u = $this->addNewAccountInternal();
 152                 if( $u == NULL )
 153                         return;
 154
 155                 # If we showed up language selection links, and one was in use, be
 156                 # smart (and sensible) and save that language as the user's preference
 157                 global $wgLoginLanguageSelector;
 158                 if( $wgLoginLanguageSelector && $this->mLanguage )
 159                         $u->setOption( 'language', $this->mLanguage );
 160
 161                 # Save user settings and send out an email authentication message if needed
 162                 $u->saveSettings();
 163                 if( $wgEmailAuthentication && User::isValidEmailAddr( $u->getEmail() ) )
 164                         $u->sendConfirmationMail();
 165
 166                 # If not logged in, assume the new account as the current one and set session cookies
 167                 # then show a "welcome" message or a "need cookies" message as needed
 168                 if( $wgUser->isAnon() ) {
 169                         $wgUser = $u;
 170                         $wgUser->setCookies();
 171                         wfRunHooks( 'AddNewAccount', array( $wgUser ) );
 172                         if( $this->hasSessionCookie() ) {
 173                                 return $this->successfulLogin( wfMsg( 'welcomecreation', $wgUser->getName() ), false );
 174                         } else {
 175                                 return $this->cookieRedirectCheck( 'new' );
 176                         }
 177                 } else {
 178                         # Confirm that the account was created
 179                         global $wgOut;
 180                         $self = SpecialPage::getTitleFor( 'Userlogin' );
 181                         $wgOut->setPageTitle( wfMsgHtml( 'accountcreated' ) );
 182                         $wgOut->setArticleRelated( false );
 183                         $wgOut->setRobotPolicy( 'noindex,nofollow' );
 184                         $wgOut->addHtml( wfMsgWikiHtml( 'accountcreatedtext', $u->getName() ) );
 185                         $wgOut->returnToMain( $self->getPrefixedText() );
 186                         wfRunHooks( 'AddNewAccount', array( $u ) );
 187                         return true;
 188                 }
 189         }
 190
 191         /**
 192          * @private
 193          */
 194         function addNewAccountInternal() {
 195                 global $wgUser, $wgOut;
 196                 global $wgEnableSorbs, $wgProxyWhitelist;
 197                 global $wgMemc, $wgAccountCreationThrottle;
 198                 global $wgAuth, $wgMinimalPasswordLength;
 199
 200                 // If the user passes an invalid domain, something is fishy
 201                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
 202                         $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 203                         return false;
 204                 }
 205
 206                 // If we are not allowing users to login locally, we should
 207                 // be checking to see if the user is actually able to
 208                 // authenticate to the authentication server before they
 209                 // create an account (otherwise, they can create a local account
 210                 // and login as any domain user). We only need to check this for
 211                 // domains that aren't local.
 212                 if( 'local' != $this->mDomain && '' != $this->mDomain ) {
 213                         if( !$wgAuth->canCreateAccounts() && ( !$wgAuth->userExists( $this->mName ) || !$wgAuth->authenticate( $this->mName, $this->mPassword ) ) ) {
 214                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 215                                 return false;
 216                         }
 217                 }
 218
 219                 if ( wfReadOnly() ) {
 220                         $wgOut->readOnlyPage();
 221                         return false;
 222                 }
 223
 224                 if (!$wgUser->isAllowedToCreateAccount()) {
 225                         $this->userNotPrivilegedMessage();
 226                         return false;
 227                 }
 228
 229                 $ip = wfGetIP();
 230                 if ( $wgEnableSorbs && !in_array( $ip, $wgProxyWhitelist ) &&
 231                   $wgUser->inSorbsBlacklist( $ip ) )
 232                 {
 233                         $this->mainLoginForm( wfMsg( 'sorbs_create_account_reason' ) . ' (' . htmlspecialchars( $ip ) . ')' );
 234                         return;
 235                 }
 236
 237                 $name = trim( $this->mName );
 238                 $u = User::newFromName( $name, 'creatable' );
 239                 if ( is_null( $u ) ) {
 240                         $this->mainLoginForm( wfMsg( 'noname' ) );
 241                         return false;
 242                 }
 243
 244                 if ( 0 != $u->idForName() ) {
 245                         $this->mainLoginForm( wfMsg( 'userexists' ) );
 246                         return false;
 247                 }
 248
 249                 if ( 0 != strcmp( $this->mPassword, $this->mRetype ) ) {
 250                         $this->mainLoginForm( wfMsg( 'badretype' ) );
 251                         return false;
 252                 }
 253
 254                 if ( !$wgUser->isValidPassword( $this->mPassword ) ) {
 255                         $this->mainLoginForm( wfMsg( 'passwordtooshort', $wgMinimalPasswordLength ) );
 256                         return false;
 257                 }
 258
 259                 $abortError = '';
 260                 if( !wfRunHooks( 'AbortNewAccount', array( $u, &$abortError ) ) ) {
 261                         // Hook point to add extra creation throttles and blocks
 262                         wfDebug( "LoginForm::addNewAccountInternal: a hook blocked creation\n" );
 263                         $this->mainLoginForm( $abortError );
 264                         return false;
 265                 }
 266
 267                 if ( $wgAccountCreationThrottle ) {
 268                         $key = wfMemcKey( 'acctcreate', 'ip', $ip );
 269                         $value = $wgMemc->incr( $key );
 270                         if ( !$value ) {
 271                                 $wgMemc->set( $key, 1, 86400 );
 272                         }
 273                         if ( $value > $wgAccountCreationThrottle ) {
 274                                 $this->throttleHit( $wgAccountCreationThrottle );
 275                                 return false;
 276                         }
 277                 }
 278
 279                 if( !$wgAuth->addUser( $u, $this->mPassword ) ) {
 280                         $this->mainLoginForm( wfMsg( 'externaldberror' ) );
 281                         return false;
 282                 }
 283
 284                 # Update user count
 285                 $ssUpdate = new SiteStatsUpdate( 0, 0, 0, 0, 1 );
 286                 $ssUpdate->doUpdate();
 287
 288                 return $this->initUser( $u );
 289         }
 290
 291         /**
 292          * Actually add a user to the database.
 293          * Give it a User object that has been initialised with a name.
 294          *
 295          * @param $u User object.
 296          * @return User object.
 297          * @private
 298          */
 299         function &initUser( &$u ) {
 300                 $u->addToDatabase();
 301                 $u->setPassword( $this->mPassword );
 302                 $u->setEmail( $this->mEmail );
 303                 $u->setRealName( $this->mRealName );
 304                 $u->setToken();
 305
 306                 global $wgAuth;
 307                 $wgAuth->initUser( $u );
 308
 309                 $u->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 310
 311                 return $u;
 312         }
 313
 314         /**
 315          * @public
 316          */
 317
 318         function authenticateUserData()
 319         {
 320                 global $wgUser, $wgAuth;
 321                 if ( '' == $this->mName ) {
 322                         return self::NO_NAME;
 323                 }
 324                 $u = User::newFromName( $this->mName );
 325                 if( is_null( $u ) || !User::isUsableName( $u->getName() ) ) {
 326                         return self::ILLEGAL;
 327                 }
 328                 if ( 0 == $u->getID() ) {
 329                         global $wgAuth;
 330                         /**
 331                          * If the external authentication plugin allows it,
 332                          * automatically create a new account for users that
 333                          * are externally defined but have not yet logged in.
 334                          */
 335                         if ( $wgAuth->autoCreate() && $wgAuth->userExists( $u->getName() ) ) {
 336                                 if ( $wgAuth->authenticate( $u->getName(), $this->mPassword ) ) {
 337                                         $u =& $this->initUser( $u );
 338                                 } else {
 339                                         return self::WRONG_PLUGIN_PASS;
 340                                 }
 341                         } else {
 342                                 return self::NOT_EXISTS;
 343                         }
 344                 } else {
 345                         $u->load();
 346                 }
 347
 348                 if (!$u->checkPassword( $this->mPassword )) {
 349                         return '' == $this->mPassword ? self::EMPTY_PASS : self::WRONG_PASS;
 350                 }
 351                 else
 352                 {
 353                         $wgAuth->updateUser( $u );
 354                         $wgUser = $u;
 355
 356                         return self::SUCCESS;
 357                 }
 358         }
 359
 360         function processLogin() {
 361                 global $wgUser, $wgAuth;
 362
 363                 switch ($this->authenticateUserData())
 364                 {
 365                         case self::SUCCESS:
 366                                 # We've verified now, update the real record
 367                                 if( (bool)$this->mRemember != (bool)$wgUser->getOption( 'rememberpassword' ) ) {
 368                                         $wgUser->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 369                                         $wgUser->saveSettings();
 370                                 } else {
 371                                         $wgUser->invalidateCache();
 372                                 }
 373                                 $wgUser->setCookies();
 374
 375                                 if( $this->hasSessionCookie() ) {
 376                                         return $this->successfulLogin( wfMsg( 'loginsuccess', $wgUser->getName() ) );
 377                                 } else {
 378                                         return $this->cookieRedirectCheck( 'login' );
 379                                 }
 380                                 break;
 381
 382                         case self::NO_NAME:
 383                         case self::ILLEGAL:
 384                                 $this->mainLoginForm( wfMsg( 'noname' ) );
 385                                 break;
 386                         case self::WRONG_PLUGIN_PASS:
 387                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 388                                 break;
 389                         case self::NOT_EXISTS:
 390                                 $this->mainLoginForm( wfMsg( 'nosuchuser', htmlspecialchars( $this->mName ) ) );
 391                                 break;
 392                         case self::WRONG_PASS:
 393                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 394                                 break;
 395                         case self::EMPTY_PASS:
 396                                 $this->mainLoginForm( wfMsg( 'wrongpasswordempty' ) );
 397                                 break;
 398                         default:
 399                                 wfDebugDieBacktrace( "Unhandled case value" );
 400                 }
 401         }
 402
 403         /**
 404          * @private
 405          */
 406         function mailPassword() {
 407                 global $wgUser, $wgOut;
 408
 409                 # Check against blocked IPs
 410                 # fixme -- should we not?
 411                 if( $wgUser->isBlocked() ) {
 412                         $this->mainLoginForm( wfMsg( 'blocked-mailpassword' ) );
 413                         return;
 414                 }
 415
 416                 # Check against the rate limiter
 417                 if( $wgUser->pingLimiter( 'mailpassword' ) ) {
 418                         $wgOut->rateLimited();
 419                         return;
 420                 }
 421
 422                 if ( '' == $this->mName ) {
 423                         $this->mainLoginForm( wfMsg( 'noname' ) );
 424                         return;
 425                 }
 426                 $u = User::newFromName( $this->mName );
 427                 if( is_null( $u ) ) {
 428                         $this->mainLoginForm( wfMsg( 'noname' ) );
 429                         return;
 430                 }
 431                 if ( 0 == $u->getID() ) {
 432                         $this->mainLoginForm( wfMsg( 'nosuchuser', $u->getName() ) );
 433                         return;
 434                 }
 435
 436                 # Check against password throttle
 437                 if ( $u->isPasswordReminderThrottled() ) {
 438                         global $wgPasswordReminderResendTime;
 439                         # Round the time in hours to 3 d.p., in case someone is specifying minutes or seconds.
 440                         $this->mainLoginForm( wfMsg( 'throttled-mailpassword',
 441                                 round( $wgPasswordReminderResendTime, 3 ) ) );
 442                         return;
 443                 }
 444
 445                 $result = $this->mailPasswordInternal( $u, true );
 446                 if( WikiError::isError( $result ) ) {
 447                         $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
 448                 } else {
 449                         $this->mainLoginForm( wfMsg( 'passwordsent', $u->getName() ), 'success' );
 450                 }
 451         }
 452
 453
 454         /**
 455          * @return mixed true on success, WikiError on failure
 456          * @private
 457          */
 458         function mailPasswordInternal( $u, $throttle = true ) {
 459                 global $wgCookiePath, $wgCookieDomain, $wgCookiePrefix, $wgCookieSecure;
 460                 global $wgServer, $wgScript;
 461
 462                 if ( '' == $u->getEmail() ) {
 463                         return new WikiError( wfMsg( 'noemail', $u->getName() ) );
 464                 }
 465
 466                 $np = $u->randomPassword();
 467                 $u->setNewpassword( $np, $throttle );
 468
 469                 setcookie( "{$wgCookiePrefix}Token", '', time() - 3600, $wgCookiePath, $wgCookieDomain, $wgCookieSecure );
 470
 471                 $u->saveSettings();
 472
 473                 $ip = wfGetIP();
 474                 if ( '' == $ip ) { $ip = '(Unknown)'; }
 475
 476                 $m = wfMsg( 'passwordremindertext', $ip, $u->getName(), $np, $wgServer . $wgScript );
 477
 478                 $result = $u->sendMail( wfMsg( 'passwordremindertitle' ), $m );
 479                 return $result;
 480         }
 481
 482
 483         /**
 484          * @param string $msg Message that will be shown on success
 485          * @param bool $auto Toggle auto-redirect to main page; default true
 486          * @private
 487          */
 488         function successfulLogin( $msg, $auto = true ) {
 489                 global $wgUser;
 490                 global $wgOut;
 491
 492                 # Run any hooks; ignore results
 493
 494                 wfRunHooks('UserLoginComplete', array(&$wgUser));
 495
 496                 $wgOut->setPageTitle( wfMsg( 'loginsuccesstitle' ) );
 497                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 498                 $wgOut->setArticleRelated( false );
 499                 $wgOut->addWikiText( $msg );
 500                 if ( !empty( $this->mReturnTo ) ) {
 501                         $wgOut->returnToMain( $auto, $this->mReturnTo );
 502                 } else {
 503                         $wgOut->returnToMain( $auto );
 504                 }
 505         }
 506
 507         /** */
 508         function userNotPrivilegedMessage() {
 509                 global $wgOut;
 510
 511                 $wgOut->setPageTitle( wfMsg( 'whitelistacctitle' ) );
 512                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 513                 $wgOut->setArticleRelated( false );
 514
 515                 $wgOut->addWikiText( wfMsg( 'whitelistacctext' ) );
 516
 517                 $wgOut->returnToMain( false );
 518         }
 519
 520         /** */
 521         function userBlockedMessage() {
 522                 global $wgOut;
 523
 524                 # Let's be nice about this, it's likely that this feature will be used
 525                 # for blocking large numbers of innocent people, e.g. range blocks on
 526                 # schools. Don't blame it on the user. There's a small chance that it
 527                 # really is the user's fault, i.e. the username is blocked and they
 528                 # haven't bothered to log out before trying to create an account to
 529                 # evade it, but we'll leave that to their guilty conscience to figure
 530                 # out.
 531
 532                 $wgOut->setPageTitle( wfMsg( 'cantcreateaccounttitle' ) );
 533                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 534                 $wgOut->setArticleRelated( false );
 535
 536                 $ip = wfGetIP();
 537                 $wgOut->addWikiText( wfMsg( 'cantcreateaccounttext', $ip ) );
 538                 $wgOut->returnToMain( false );
 539         }
 540
 541         /**
 542          * @private
 543          */
 544         function mainLoginForm( $msg, $msgtype = 'error' ) {
 545                 global $wgUser, $wgOut, $wgAllowRealName, $wgEnableEmail;
 546                 global $wgCookiePrefix, $wgAuth, $wgLoginLanguageSelector;
 547
 548                 if ( $this->mType == 'signup' ) {
 549                         if ( !$wgUser->isAllowed( 'createaccount' ) ) {
 550                                 $this->userNotPrivilegedMessage();
 551                                 return;
 552                         } elseif ( $wgUser->isBlockedFromCreateAccount() ) {
 553                                 $this->userBlockedMessage();
 554                                 return;
 555                         }
 556                 }
 557
 558                 if ( '' == $this->mName ) {
 559                         if ( $wgUser->isLoggedIn() ) {
 560                                 $this->mName = $wgUser->getName();
 561                         } else {
 562                                 $this->mName = isset( $_COOKIE[$wgCookiePrefix.'UserName'] ) ? $_COOKIE[$wgCookiePrefix.'UserName'] : null;
 563                         }
 564                 }
 565
 566                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 567
 568                 if ( $this->mType == 'signup' ) {
 569                         $template = new UsercreateTemplate();
 570                         $q = 'action=submitlogin&type=signup';
 571                         $linkq = 'type=login';
 572                         $linkmsg = 'gotaccount';
 573                 } else {
 574                         $template = new UserloginTemplate();
 575                         $q = 'action=submitlogin&type=login';
 576                         $linkq = 'type=signup';
 577                         $linkmsg = 'nologin';
 578                 }
 579
 580                 if ( !empty( $this->mReturnTo ) ) {
 581                         $returnto = '&returnto=' . wfUrlencode( $this->mReturnTo );
 582                         $q .= $returnto;
 583                         $linkq .= $returnto;
 584                 }
 585
 586                 # Pass any language selection on to the mode switch link
 587                 if( $wgLoginLanguageSelector && $this->mLanguage )
 588                         $linkq .= '&uselang=' . $this->mLanguage;
 589
 590                 $link = '<a href="' . htmlspecialchars ( $titleObj->getLocalUrl( $linkq ) ) . '">';
 591                 $link .= wfMsgHtml( $linkmsg . 'link' );
 592                 $link .= '</a>';
 593
 594                 # Don't show a "create account" link if the user can't
 595                 if( $this->showCreateOrLoginLink( $wgUser ) )
 596                         $template->set( 'link', wfMsgHtml( $linkmsg, $link ) );
 597                 else
 598                         $template->set( 'link', '' );
 599
 600                 $template->set( 'header', '' );
 601                 $template->set( 'name', $this->mName );
 602                 $template->set( 'password', $this->mPassword );
 603                 $template->set( 'retype', $this->mRetype );
 604                 $template->set( 'email', $this->mEmail );
 605                 $template->set( 'realname', $this->mRealName );
 606                 $template->set( 'domain', $this->mDomain );
 607
 608                 $template->set( 'action', $titleObj->getLocalUrl( $q ) );
 609                 $template->set( 'message', $msg );
 610                 $template->set( 'messagetype', $msgtype );
 611                 $template->set( 'createemail', $wgEnableEmail && $wgUser->isLoggedIn() );
 612                 $template->set( 'userealname', $wgAllowRealName );
 613                 $template->set( 'useemail', $wgEnableEmail );
 614                 $template->set( 'remember', $wgUser->getOption( 'rememberpassword' ) or $this->mRemember  );
 615
 616                 # Prepare language selection links as needed
 617                 if( $wgLoginLanguageSelector ) {
 618                         $template->set( 'languages', $this->makeLanguageSelector() );
 619                         if( $this->mLanguage )
 620                                 $template->set( 'uselang', $this->mLanguage );
 621                 }
 622
 623                 // Give authentication and captcha plugins a chance to modify the form
 624                 $wgAuth->modifyUITemplate( $template );
 625                 if ( $this->mType == 'signup' ) {
 626                         wfRunHooks( 'UserCreateForm', array( &$template ) );
 627                 } else {
 628                         wfRunHooks( 'UserLoginForm', array( &$template ) );
 629                 }
 630
 631                 $wgOut->setPageTitle( wfMsg( 'userlogin' ) );
 632                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 633                 $wgOut->setArticleRelated( false );
 634                 $wgOut->addTemplate( $template );
 635         }
 636
 637         /**
 638          * @private
 639          */
 640         function showCreateOrLoginLink( &$user ) {
 641                 if( $this->mType == 'signup' ) {
 642                         return( true );
 643                 } elseif( $user->isAllowed( 'createaccount' ) ) {
 644                         return( true );
 645                 } else {
 646                         return( false );
 647                 }
 648         }
 649
 650         /**
 651          * @private
 652          */
 653         function hasSessionCookie() {
 654                 global $wgDisableCookieCheck;
 655                 return ( $wgDisableCookieCheck ) ? true : ( isset( $_COOKIE[session_name()] ) );
 656         }
 657
 658         /**
 659          * @private
 660          */
 661         function cookieRedirectCheck( $type ) {
 662                 global $wgOut;
 663
 664                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 665                 $check = $titleObj->getFullURL( 'wpCookieCheck='.$type );
 666
 667                 return $wgOut->redirect( $check );
 668         }
 669
 670         /**
 671          * @private
 672          */
 673         function onCookieRedirectCheck( $type ) {
 674                 global $wgUser;
 675
 676                 if ( !$this->hasSessionCookie() ) {
 677                         if ( $type == 'new' ) {
 678                                 return $this->mainLoginForm( wfMsg( 'nocookiesnew' ) );
 679                         } else if ( $type == 'login' ) {
 680                                 return $this->mainLoginForm( wfMsg( 'nocookieslogin' ) );
 681                         } else {
 682                                 # shouldn't happen
 683                                 return $this->mainLoginForm( wfMsg( 'error' ) );
 684                         }
 685                 } else {
 686                         return $this->successfulLogin( wfMsg( 'loginsuccess', $wgUser->getName() ) );
 687                 }
 688         }
 689
 690         /**
 691          * @private
 692          */
 693         function throttleHit( $limit ) {
 694                 global $wgOut;
 695
 696                 $wgOut->addWikiText( wfMsg( 'acct_creation_throttle_hit', $limit ) );
 697         }
 698
 699         /**
 700          * Produce a bar of links which allow the user to select another language
 701          * during login/registration but retain "returnto"
 702          *
 703          * @return string
 704          */
 705         function makeLanguageSelector() {
 706                 $msg = wfMsgForContent( 'loginlanguagelinks' );
 707                 if( $msg != '' && !wfEmptyMsg( 'loginlanguagelinks', $msg ) ) {
 708                         $langs = explode( "\n", $msg );
 709                         $links = array();
 710                         foreach( $langs as $lang ) {
 711                                 $lang = trim( $lang, '* ' );
 712                                 $parts = explode( '|', $lang );
 713                                 $links[] = $this->makeLanguageSelectorLink( $parts[0], $parts[1] );
 714                         }
 715                         return count( $links ) > 0 ? wfMsgHtml( 'loginlanguagelabel', implode( ' | ', $links ) ) : '';
 716                 } else {
 717                         return '';
 718                 }
 719         }
 720
 721         /**
 722          * Create a language selector link for a particular language
 723          * Links back to this page preserving type and returnto
 724          *
 725          * @param $text Link text
 726          * @param $lang Language code
 727          */
 728         function makeLanguageSelectorLink( $text, $lang ) {
 729                 global $wgUser;
 730                 $self = SpecialPage::getTitleFor( 'Userlogin' );
 731                 $attr[] = 'uselang=' . $lang;
 732                 if( $this->mType == 'signup' )
 733                         $attr[] = 'type=signup';
 734                 if( $this->mReturnTo )
 735                         $attr[] = 'returnto=' . $this->mReturnTo;
 736                 $skin =& $wgUser->getSkin();
 737                 return $skin->makeKnownLinkObj( $self, htmlspecialchars( $text ), implode( '&', $attr ) );
 738         }
 739
 740 }
 741 ?>