includes/specials/SpecialUserlogin.php

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup SpecialPage
   5  */
   6
   7 /**
   8  * constructor
   9  */
  10 function wfSpecialUserlogin( $par = '' ) {
  11         global $wgRequest;
  12         if( session_id() == '' ) {
  13                 wfSetupSession();
  14         }
  15
  16         $form = new LoginForm( $wgRequest, $par );
  17         $form->execute();
  18 }
  19
  20 /**
  21  * implements Special:Login
  22  * @ingroup SpecialPage
  23  */
  24 class LoginForm {
  25
  26         const SUCCESS = 0;
  27         const NO_NAME = 1;
  28         const ILLEGAL = 2;
  29         const WRONG_PLUGIN_PASS = 3;
  30         const NOT_EXISTS = 4;
  31         const WRONG_PASS = 5;
  32         const EMPTY_PASS = 6;
  33         const RESET_PASS = 7;
  34         const ABORTED = 8;
  35         const CREATE_BLOCKED = 9;
  36         const THROTTLED = 10;
  37
  38         var $mName, $mPassword, $mRetype, $mReturnTo, $mCookieCheck, $mPosted;
  39         var $mAction, $mCreateaccount, $mCreateaccountMail, $mMailmypassword;
  40         var $mLoginattempt, $mRemember, $mEmail, $mDomain, $mLanguage, $mSkipCookieCheck;
  41
  42         /**
  43          * Constructor
  44          * @param WebRequest $request A WebRequest object passed by reference
  45          */
  46         function LoginForm( &$request, $par = '' ) {
  47                 global $wgLang, $wgHiddenPrefs, $wgEnableEmail;
  48                 global $wgAuth, $wgRedirectOnLogin;
  49
  50                 $this->mType = ( $par == 'signup' ) ? $par : $request->getText( 'type' ); # Check for [[Special:Userlogin/signup]]
  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                 $this->mSkipCookieCheck = $request->getCheck( 'wpSkipCookieCheck' );
  68
  69                 if ( $wgRedirectOnLogin ) {
  70                         $this->mReturnTo = $wgRedirectOnLogin;
  71                 }
  72
  73                 if( $wgEnableEmail ) {
  74                         $this->mEmail = $request->getText( 'wpEmail' );
  75                 } else {
  76                         $this->mEmail = '';
  77                 }
  78                 if( !in_array( 'realname', $wgHiddenPrefs ) ) {
  79                     $this->mRealName = $request->getText( 'wpRealName' );
  80                 } else {
  81                     $this->mRealName = '';
  82                 }
  83
  84                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
  85                         $this->mDomain = 'invaliddomain';
  86                 }
  87                 $wgAuth->setDomain( $this->mDomain );
  88
  89                 # When switching accounts, it sucks to get automatically logged out
  90                 if( $this->mReturnTo == $wgLang->specialPage( 'Userlogout' ) ) {
  91                         $this->mReturnTo = '';
  92                 }
  93         }
  94
  95         function execute() {
  96                 if ( !is_null( $this->mCookieCheck ) ) {
  97                         $this->onCookieRedirectCheck( $this->mCookieCheck );
  98                         return;
  99                 } else if( $this->mPosted ) {
 100                         if( $this->mCreateaccount ) {
 101                                 return $this->addNewAccount();
 102                         } else if ( $this->mCreateaccountMail ) {
 103                                 return $this->addNewAccountMailPassword();
 104                         } else if ( $this->mMailmypassword ) {
 105                                 return $this->mailPassword();
 106                         } else if ( ( 'submitlogin' == $this->mAction ) || $this->mLoginattempt ) {
 107                                 return $this->processLogin();
 108                         }
 109                 }
 110                 $this->mainLoginForm( '' );
 111         }
 112
 113         /**
 114          * @private
 115          */
 116         function addNewAccountMailPassword() {
 117                 global $wgOut;
 118
 119                 if ('' == $this->mEmail) {
 120                         $this->mainLoginForm( wfMsg( 'noemail', htmlspecialchars( $this->mName ) ) );
 121                         return;
 122                 }
 123
 124                 $u = $this->addNewaccountInternal();
 125
 126                 if ($u == NULL) {
 127                         return;
 128                 }
 129
 130                 // Wipe the initial password and mail a temporary one
 131                 $u->setPassword( null );
 132                 $u->saveSettings();
 133                 $result = $this->mailPasswordInternal( $u, false, 'createaccount-title', 'createaccount-text' );
 134
 135                 wfRunHooks( 'AddNewAccount', array( $u, true ) );
 136                 $u->addNewUserLogEntry();
 137
 138                 $wgOut->setPageTitle( wfMsg( 'accmailtitle' ) );
 139                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 140                 $wgOut->setArticleRelated( false );
 141
 142                 if( WikiError::isError( $result ) ) {
 143                         $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
 144                 } else {
 145                         $wgOut->addWikiMsg( 'accmailtext', $u->getName(), $u->getEmail() );
 146                         $wgOut->returnToMain( false );
 147                 }
 148                 $u = 0;
 149         }
 150
 151
 152         /**
 153          * @private
 154          */
 155         function addNewAccount() {
 156                 global $wgUser, $wgEmailAuthentication;
 157
 158                 # Create the account and abort if there's a problem doing so
 159                 $u = $this->addNewAccountInternal();
 160                 if( $u == NULL )
 161                         return;
 162
 163                 # If we showed up language selection links, and one was in use, be
 164                 # smart (and sensible) and save that language as the user's preference
 165                 global $wgLoginLanguageSelector;
 166                 if( $wgLoginLanguageSelector && $this->mLanguage )
 167                         $u->setOption( 'language', $this->mLanguage );
 168
 169                 # Send out an email authentication message if needed
 170                 if( $wgEmailAuthentication && User::isValidEmailAddr( $u->getEmail() ) ) {
 171                         global $wgOut;
 172                         $error = $u->sendConfirmationMail();
 173                         if( WikiError::isError( $error ) ) {
 174                                 $wgOut->addWikiMsg( 'confirmemail_sendfailed', $error->getMessage() );
 175                         } else {
 176                                 $wgOut->addWikiMsg( 'confirmemail_oncreate' );
 177                         }
 178                 }
 179
 180                 # Save settings (including confirmation token)
 181                 $u->saveSettings();
 182
 183                 # If not logged in, assume the new account as the current one and set
 184                 # session cookies then show a "welcome" message or a "need cookies"
 185                 # message as needed
 186                 if( $wgUser->isAnon() ) {
 187                         $wgUser = $u;
 188                         $wgUser->setCookies();
 189                         wfRunHooks( 'AddNewAccount', array( $wgUser ) );
 190                         $wgUser->addNewUserLogEntry();
 191                         if( $this->hasSessionCookie() ) {
 192                                 return $this->successfulCreation();
 193                         } else {
 194                                 return $this->cookieRedirectCheck( 'new' );
 195                         }
 196                 } else {
 197                         # Confirm that the account was created
 198                         global $wgOut;
 199                         $self = SpecialPage::getTitleFor( 'Userlogin' );
 200                         $wgOut->setPageTitle( wfMsgHtml( 'accountcreated' ) );
 201                         $wgOut->setArticleRelated( false );
 202                         $wgOut->setRobotPolicy( 'noindex,nofollow' );
 203                         $wgOut->addHTML( wfMsgWikiHtml( 'accountcreatedtext', $u->getName() ) );
 204                         $wgOut->returnToMain( false, $self );
 205                         wfRunHooks( 'AddNewAccount', array( $u ) );
 206                         $u->addNewUserLogEntry();
 207                         return true;
 208                 }
 209         }
 210
 211         /**
 212          * @private
 213          */
 214         function addNewAccountInternal() {
 215                 global $wgUser, $wgOut;
 216                 global $wgEnableSorbs, $wgProxyWhitelist;
 217                 global $wgMemc, $wgAccountCreationThrottle;
 218                 global $wgAuth, $wgMinimalPasswordLength;
 219                 global $wgEmailConfirmToEdit;
 220
 221                 // If the user passes an invalid domain, something is fishy
 222                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
 223                         $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 224                         return false;
 225                 }
 226
 227                 // If we are not allowing users to login locally, we should be checking
 228                 // to see if the user is actually able to authenticate to the authenti-
 229                 // cation server before they create an account (otherwise, they can
 230                 // create a local account and login as any domain user). We only need
 231                 // to check this for domains that aren't local.
 232                 if( 'local' != $this->mDomain && '' != $this->mDomain ) {
 233                         if( !$wgAuth->canCreateAccounts() && ( !$wgAuth->userExists( $this->mName ) || !$wgAuth->authenticate( $this->mName, $this->mPassword ) ) ) {
 234                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 235                                 return false;
 236                         }
 237                 }
 238
 239                 if ( wfReadOnly() ) {
 240                         $wgOut->readOnlyPage();
 241                         return false;
 242                 }
 243
 244                 # Check permissions
 245                 if ( !$wgUser->isAllowed( 'createaccount' ) ) {
 246                         $this->userNotPrivilegedMessage();
 247                         return false;
 248                 } elseif ( $wgUser->isBlockedFromCreateAccount() ) {
 249                         $this->userBlockedMessage();
 250                         return false;
 251                 }
 252
 253                 $ip = wfGetIP();
 254                 if ( $wgEnableSorbs && !in_array( $ip, $wgProxyWhitelist ) &&
 255                   $wgUser->inSorbsBlacklist( $ip ) )
 256                 {
 257                         $this->mainLoginForm( wfMsg( 'sorbs_create_account_reason' ) . ' (' . htmlspecialchars( $ip ) . ')' );
 258                         return;
 259                 }
 260
 261                 # Now create a dummy user ($u) and check if it is valid
 262                 $name = trim( $this->mName );
 263                 $u = User::newFromName( $name, 'creatable' );
 264                 if ( is_null( $u ) ) {
 265                         $this->mainLoginForm( wfMsg( 'noname' ) );
 266                         return false;
 267                 }
 268
 269                 if ( 0 != $u->idForName() ) {
 270                         $this->mainLoginForm( wfMsg( 'userexists' ) );
 271                         return false;
 272                 }
 273
 274                 if ( 0 != strcmp( $this->mPassword, $this->mRetype ) ) {
 275                         $this->mainLoginForm( wfMsg( 'badretype' ) );
 276                         return false;
 277                 }
 278
 279                 # check for minimal password length
 280                 $valid = $u->isValidPassword( $this->mPassword );
 281                 if ( $valid !== true ) {
 282                         if ( !$this->mCreateaccountMail ) {
 283                                 $this->mainLoginForm( wfMsgExt( $valid, array( 'parsemag' ), $wgMinimalPasswordLength ) );
 284                                 return false;
 285                         } else {
 286                                 # do not force a password for account creation by email
 287                                 # set invalid password, it will be replaced later by a random generated password
 288                                 $this->mPassword = null;
 289                         }
 290                 }
 291
 292                 # if you need a confirmed email address to edit, then obviously you
 293                 # need an email address.
 294                 if ( $wgEmailConfirmToEdit && empty( $this->mEmail ) ) {
 295                         $this->mainLoginForm( wfMsg( 'noemailtitle' ) );
 296                         return false;
 297                 }
 298
 299                 if( !empty( $this->mEmail ) && !User::isValidEmailAddr( $this->mEmail ) ) {
 300                         $this->mainLoginForm( wfMsg( 'invalidemailaddress' ) );
 301                         return false;
 302                 }
 303
 304                 # Set some additional data so the AbortNewAccount hook can be used for
 305                 # more than just username validation
 306                 $u->setEmail( $this->mEmail );
 307                 $u->setRealName( $this->mRealName );
 308
 309                 $abortError = '';
 310                 if( !wfRunHooks( 'AbortNewAccount', array( $u, &$abortError ) ) ) {
 311                         // Hook point to add extra creation throttles and blocks
 312                         wfDebug( "LoginForm::addNewAccountInternal: a hook blocked creation\n" );
 313                         $this->mainLoginForm( $abortError );
 314                         return false;
 315                 }
 316
 317                 if ( $wgAccountCreationThrottle && $wgUser->isPingLimitable() ) {
 318                         $key = wfMemcKey( 'acctcreate', 'ip', $ip );
 319                         $value = $wgMemc->get( $key );
 320                         if ( !$value ) {
 321                                 $wgMemc->set( $key, 0, 86400 );
 322                         }
 323                         if ( $value >= $wgAccountCreationThrottle ) {
 324                                 $this->throttleHit( $wgAccountCreationThrottle );
 325                                 return false;
 326                         }
 327                         $wgMemc->incr( $key );
 328                 }
 329
 330                 if( !$wgAuth->addUser( $u, $this->mPassword, $this->mEmail, $this->mRealName ) ) {
 331                         $this->mainLoginForm( wfMsg( 'externaldberror' ) );
 332                         return false;
 333                 }
 334
 335                 return $this->initUser( $u, false );
 336         }
 337
 338         /**
 339          * Actually add a user to the database.
 340          * Give it a User object that has been initialised with a name.
 341          *
 342          * @param $u User object.
 343          * @param $autocreate boolean -- true if this is an autocreation via auth plugin
 344          * @return User object.
 345          * @private
 346          */
 347         function initUser( $u, $autocreate ) {
 348                 global $wgAuth;
 349
 350                 $u->addToDatabase();
 351
 352                 if ( $wgAuth->allowPasswordChange() ) {
 353                         $u->setPassword( $this->mPassword );
 354                 }
 355
 356                 $u->setEmail( $this->mEmail );
 357                 $u->setRealName( $this->mRealName );
 358                 $u->setToken();
 359
 360                 $wgAuth->initUser( $u, $autocreate );
 361
 362                 $u->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 363                 $u->saveSettings();
 364
 365                 # Update user count
 366                 $ssUpdate = new SiteStatsUpdate( 0, 0, 0, 0, 1 );
 367                 $ssUpdate->doUpdate();
 368
 369                 return $u;
 370         }
 371
 372         /**
 373          * Internally authenticate the login request.
 374          *
 375          * This may create a local account as a side effect if the
 376          * authentication plugin allows transparent local account
 377          * creation.
 378          *
 379          * @public
 380          */
 381         function authenticateUserData() {
 382                 global $wgUser, $wgAuth;
 383                 if ( '' == $this->mName ) {
 384                         return self::NO_NAME;
 385                 }
 386
 387                 global $wgPasswordAttemptThrottle;
 388
 389                 $throttleCount=0;
 390                 if ( is_array($wgPasswordAttemptThrottle) ) {
 391                         $throttleKey = wfMemcKey( 'password-throttle', wfGetIP(), md5( $this->mName ) );
 392                         $count = $wgPasswordAttemptThrottle['count'];
 393                         $period = $wgPasswordAttemptThrottle['seconds'];
 394
 395                         global $wgMemc;
 396                         $throttleCount = $wgMemc->get($throttleKey);
 397                         if ( !$throttleCount ) {
 398                                 $wgMemc->add( $throttleKey, 1, $period ); // start counter
 399                         } else if ( $throttleCount < $count ) {
 400                                 $wgMemc->incr($throttleKey);
 401                         } else if ( $throttleCount >= $count ) {
 402                                 return self::THROTTLED;
 403                         }
 404                 }
 405
 406                 // Load $wgUser now, and check to see if we're logging in as the same
 407                 // name. This is necessary because loading $wgUser (say by calling
 408                 // getName()) calls the UserLoadFromSession hook, which potentially
 409                 // creates the user in the database. Until we load $wgUser, checking
 410                 // for user existence using User::newFromName($name)->getId() below
 411                 // will effectively be using stale data.
 412                 if ( $wgUser->getName() === $this->mName ) {
 413                         wfDebug( __METHOD__.": already logged in as {$this->mName}\n" );
 414                         return self::SUCCESS;
 415                 }
 416                 $u = User::newFromName( $this->mName );
 417                 if( is_null( $u ) || !User::isUsableName( $u->getName() ) ) {
 418                         return self::ILLEGAL;
 419                 }
 420
 421                 $isAutoCreated = false;
 422                 if ( 0 == $u->getID() ) {
 423                         $status = $this->attemptAutoCreate( $u );
 424                         if ( $status !== self::SUCCESS ) {
 425                                 return $status;
 426                         } else {
 427                                 $isAutoCreated = true;
 428                         }
 429                 } else {
 430                         $u->load();
 431                 }
 432
 433                 // Give general extensions, such as a captcha, a chance to abort logins
 434                 $abort = self::ABORTED;
 435                 if( !wfRunHooks( 'AbortLogin', array( $u, $this->mPassword, &$abort ) ) ) {
 436                         return $abort;
 437                 }
 438
 439                 if (!$u->checkPassword( $this->mPassword )) {
 440                         if( $u->checkTemporaryPassword( $this->mPassword ) ) {
 441                                 // The e-mailed temporary password should not be used for actu-
 442                                 // al logins; that's a very sloppy habit, and insecure if an
 443                                 // attacker has a few seconds to click "search" on someone's o-
 444                                 // pen mail reader.
 445                                 //
 446                                 // Allow it to be used only to reset the password a single time
 447                                 // to a new value, which won't be in the user's e-mail ar-
 448                                 // chives.
 449                                 //
 450                                 // For backwards compatibility, we'll still recognize it at the
 451                                 // login form to minimize surprises for people who have been
 452                                 // logging in with a temporary password for some time.
 453                                 //
 454                                 // As a side-effect, we can authenticate the user's e-mail ad-
 455                                 // dress if it's not already done, since the temporary password
 456                                 // was sent via e-mail.
 457                                 if( !$u->isEmailConfirmed() ) {
 458                                         $u->confirmEmail();
 459                                         $u->saveSettings();
 460                                 }
 461
 462                                 // At this point we just return an appropriate code/ indicating
 463                                 // that the UI should show a password reset form; bot inter-
 464                                 // faces etc will probably just fail cleanly here.
 465                                 $retval = self::RESET_PASS;
 466                         } else {
 467                                 $retval = '' == $this->mPassword ? self::EMPTY_PASS : self::WRONG_PASS;
 468                         }
 469                 } else {
 470                         $wgAuth->updateUser( $u );
 471                         $wgUser = $u;
 472
 473                         // Please reset throttle for successful logins, thanks!
 474                         if($throttleCount) {
 475                                 $wgMemc->delete($throttleKey);
 476                         }
 477
 478                         if ( $isAutoCreated ) {
 479                                 // Must be run after $wgUser is set, for correct new user log
 480                                 wfRunHooks( 'AuthPluginAutoCreate', array( $wgUser ) );
 481                         }
 482
 483                         $retval = self::SUCCESS;
 484                 }
 485                 wfRunHooks( 'LoginAuthenticateAudit', array( $u, $this->mPassword, $retval ) );
 486                 return $retval;
 487         }
 488
 489         /**
 490          * Attempt to automatically create a user on login. Only succeeds if there
 491          * is an external authentication method which allows it.
 492          * @return integer Status code
 493          */
 494         function attemptAutoCreate( $user ) {
 495                 global $wgAuth, $wgUser;
 496                 /**
 497                  * If the external authentication plugin allows it, automatically cre-
 498                  * ate a new account for users that are externally defined but have not
 499                  * yet logged in.
 500                  */
 501                 if ( !$wgAuth->autoCreate() ) {
 502                         return self::NOT_EXISTS;
 503                 }
 504                 if ( !$wgAuth->userExists( $user->getName() ) ) {
 505                         wfDebug( __METHOD__.": user does not exist\n" );
 506                         return self::NOT_EXISTS;
 507                 }
 508                 if ( !$wgAuth->authenticate( $user->getName(), $this->mPassword ) ) {
 509                         wfDebug( __METHOD__.": \$wgAuth->authenticate() returned false, aborting\n" );
 510                         return self::WRONG_PLUGIN_PASS;
 511                 }
 512                 if ( $wgUser->isBlockedFromCreateAccount() ) {
 513                         wfDebug( __METHOD__.": user is blocked from account creation\n" );
 514                         return self::CREATE_BLOCKED;
 515                 }
 516
 517                 wfDebug( __METHOD__.": creating account\n" );
 518                 $user = $this->initUser( $user, true );
 519                 return self::SUCCESS;
 520         }
 521
 522         function processLogin() {
 523                 global $wgUser, $wgAuth;
 524
 525                 switch ($this->authenticateUserData())
 526                 {
 527                         case self::SUCCESS:
 528                                 # We've verified now, update the real record
 529                                 if( (bool)$this->mRemember != (bool)$wgUser->getOption( 'rememberpassword' ) ) {
 530                                         $wgUser->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 531                                         $wgUser->saveSettings();
 532                                 } else {
 533                                         $wgUser->invalidateCache();
 534                                 }
 535                                 $wgUser->setCookies();
 536
 537                                 // Reset the throttle
 538                                 $key = wfMemcKey( 'password-throttle', wfGetIP(), md5( $this->mName ) );
 539                                 global $wgMemc;
 540                                 $wgMemc->delete( $key );
 541
 542                                 if( $this->hasSessionCookie() || $this->mSkipCookieCheck ) {
 543                                         /* Replace the language object to provide user interface in
 544                                          * correct language immediately on this first page load.
 545                                          */
 546                                         global $wgLang, $wgRequest;
 547                                         $code = $wgRequest->getVal( 'uselang', $wgUser->getOption( 'language' ) );
 548                                         $wgLang = Language::factory( $code );
 549                                         return $this->successfulLogin();
 550                                 } else {
 551                                         return $this->cookieRedirectCheck( 'login' );
 552                                 }
 553                                 break;
 554
 555                         case self::NO_NAME:
 556                         case self::ILLEGAL:
 557                                 $this->mainLoginForm( wfMsg( 'noname' ) );
 558                                 break;
 559                         case self::WRONG_PLUGIN_PASS:
 560                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 561                                 break;
 562                         case self::NOT_EXISTS:
 563                                 if( $wgUser->isAllowed( 'createaccount' ) ){
 564                                         $this->mainLoginForm( wfMsgWikiHtml( 'nosuchuser', htmlspecialchars( $this->mName ) ) );
 565                                 } else {
 566                                         $this->mainLoginForm( wfMsg( 'nosuchusershort', htmlspecialchars( $this->mName ) ) );
 567                                 }
 568                                 break;
 569                         case self::WRONG_PASS:
 570                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 571                                 break;
 572                         case self::EMPTY_PASS:
 573                                 $this->mainLoginForm( wfMsg( 'wrongpasswordempty' ) );
 574                                 break;
 575                         case self::RESET_PASS:
 576                                 $this->resetLoginForm( wfMsg( 'resetpass_announce' ) );
 577                                 break;
 578                         case self::CREATE_BLOCKED:
 579                                 $this->userBlockedMessage();
 580                                 break;
 581                         case self::THROTTLED:
 582                                 $this->mainLoginForm( wfMsg( 'login-throttled' ) );
 583                                 break;
 584                         default:
 585                                 throw new MWException( "Unhandled case value" );
 586                 }
 587         }
 588
 589         function resetLoginForm( $error ) {
 590                 global $wgOut;
 591                 $wgOut->addHTML( Xml::element('p', array( 'class' => 'error' ), $error ) );
 592                 $reset = new SpecialResetpass();
 593                 $reset->execute( null );
 594         }
 595
 596         /**
 597          * @private
 598          */
 599         function mailPassword() {
 600                 global $wgUser, $wgOut, $wgAuth;
 601
 602                 if ( wfReadOnly() ) {
 603                         $wgOut->readOnlyPage();
 604                         return false;
 605                 }
 606
 607                 if( !$wgAuth->allowPasswordChange() ) {
 608                         $this->mainLoginForm( wfMsg( 'resetpass_forbidden' ) );
 609                         return;
 610                 }
 611
 612                 # Check against blocked IPs
 613                 # fixme -- should we not?
 614                 if( $wgUser->isBlocked() ) {
 615                         $this->mainLoginForm( wfMsg( 'blocked-mailpassword' ) );
 616                         return;
 617                 }
 618
 619                 // Check for hooks
 620                 $error = null;
 621                 if ( ! wfRunHooks( 'UserLoginMailPassword', array( $this->mName, &$error ) ) ) {
 622                         $this->mainLoginForm( $error );
 623                         return;
 624                 }
 625
 626                 # Check against the rate limiter
 627                 if( $wgUser->pingLimiter( 'mailpassword' ) ) {
 628                         $wgOut->rateLimited();
 629                         return;
 630                 }
 631
 632                 if ( '' == $this->mName ) {
 633                         $this->mainLoginForm( wfMsg( 'noname' ) );
 634                         return;
 635                 }
 636                 $u = User::newFromName( $this->mName );
 637                 if( is_null( $u ) ) {
 638                         $this->mainLoginForm( wfMsg( 'noname' ) );
 639                         return;
 640                 }
 641                 if ( 0 == $u->getID() ) {
 642                         $this->mainLoginForm( wfMsgWikiHtml( 'nosuchuser', htmlspecialchars( $u->getName() ) ) );
 643                         return;
 644                 }
 645
 646                 # Check against password throttle
 647                 if ( $u->isPasswordReminderThrottled() ) {
 648                         global $wgPasswordReminderResendTime;
 649                         # Round the time in hours to 3 d.p., in case someone is specifying
 650                         # minutes or seconds.
 651                         $this->mainLoginForm( wfMsgExt( 'throttled-mailpassword', array( 'parsemag' ),
 652                                 round( $wgPasswordReminderResendTime, 3 ) ) );
 653                         return;
 654                 }
 655
 656                 $result = $this->mailPasswordInternal( $u, true, 'passwordremindertitle', 'passwordremindertext' );
 657                 if( WikiError::isError( $result ) ) {
 658                         $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
 659                 } else {
 660                         $this->mainLoginForm( wfMsg( 'passwordsent', $u->getName() ), 'success' );
 661                 }
 662         }
 663
 664
 665         /**
 666          * @param object user
 667          * @param bool throttle
 668          * @param string message name of email title
 669          * @param string message name of email text
 670          * @return mixed true on success, WikiError on failure
 671          * @private
 672          */
 673         function mailPasswordInternal( $u, $throttle = true, $emailTitle = 'passwordremindertitle', $emailText = 'passwordremindertext' ) {
 674                 global $wgServer, $wgScript, $wgUser, $wgNewPasswordExpiry;
 675
 676                 if ( '' == $u->getEmail() ) {
 677                         return new WikiError( wfMsg( 'noemail', $u->getName() ) );
 678                 }
 679                 $ip = wfGetIP();
 680                 if( !$ip ) {
 681                         return new WikiError( wfMsg( 'badipaddress' ) );
 682                 }
 683
 684                 wfRunHooks( 'User::mailPasswordInternal', array(&$wgUser, &$ip, &$u) );
 685
 686                 $np = $u->randomPassword();
 687                 $u->setNewpassword( $np, $throttle );
 688                 $u->saveSettings();
 689
 690                 $m = wfMsgExt( $emailText, array( 'parsemag' ), $ip, $u->getName(), $np,
 691                                 $wgServer . $wgScript, round( $wgNewPasswordExpiry / 86400 ) );
 692                 $result = $u->sendMail( wfMsg( $emailTitle ), $m );
 693
 694                 return $result;
 695         }
 696
 697
 698         /**
 699          * Run any hooks registered for logins, then HTTP redirect to
 700          * $this->mReturnTo (or Main Page if that's undefined).  Formerly we had a
 701          * nice message here, but that's really not as useful as just being sent to
 702          * wherever you logged in from.  It should be clear that the action was
 703          * successful, given the lack of error messages plus the appearance of your
 704          * name in the upper right.
 705          *
 706          * @private
 707          */
 708         function successfulLogin() {
 709                 global $wgUser, $wgOut;
 710
 711                 # Run any hooks; display injected HTML if any, else redirect
 712                 $injected_html = '';
 713                 wfRunHooks('UserLoginComplete', array(&$wgUser, &$injected_html));
 714
 715                 if( $injected_html !== '' ) {
 716                         $this->displaySuccessfulLogin( 'loginsuccess', $injected_html );
 717                 } else {
 718                         $titleObj = Title::newFromText( $this->mReturnTo );
 719                         if ( !$titleObj instanceof Title ) {
 720                                 $titleObj = Title::newMainPage();
 721                         }
 722
 723                         $wgOut->redirect( $titleObj->getFullURL() );
 724                 }
 725         }
 726
 727         /**
 728          * Run any hooks registered for logins, then display a message welcoming
 729          * the user.
 730          *
 731          * @private
 732          */
 733         function successfulCreation() {
 734                 global $wgUser, $wgOut;
 735
 736                 # Run any hooks; display injected HTML
 737                 $injected_html = '';
 738                 wfRunHooks('UserLoginComplete', array(&$wgUser, &$injected_html));
 739
 740                 $this->displaySuccessfulLogin( 'welcomecreation', $injected_html );
 741         }
 742
 743         /**
 744          * Display a "login successful" page.
 745          */
 746         private function displaySuccessfulLogin( $msgname, $injected_html ) {
 747                 global $wgOut, $wgUser;
 748
 749                 $wgOut->setPageTitle( wfMsg( 'loginsuccesstitle' ) );
 750                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 751                 $wgOut->setArticleRelated( false );
 752                 $wgOut->addWikiMsg( $msgname, $wgUser->getName() );
 753                 $wgOut->addHTML( $injected_html );
 754
 755                 if ( !empty( $this->mReturnTo ) ) {
 756                         $wgOut->returnToMain( null, $this->mReturnTo );
 757                 } else {
 758                         $wgOut->returnToMain( null );
 759                 }
 760         }
 761
 762         /** */
 763         function userNotPrivilegedMessage($errors) {
 764                 global $wgOut;
 765
 766                 $wgOut->setPageTitle( wfMsg( 'permissionserrors' ) );
 767                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 768                 $wgOut->setArticleRelated( false );
 769
 770                 $wgOut->addWikitext( $wgOut->formatPermissionsErrorMessage( $errors, 'createaccount' ) );
 771                 // Stuff that might want to be added at the end. For example, instruc-
 772                 // tions if blocked.
 773                 $wgOut->addWikiMsg( 'cantcreateaccount-nonblock-text' );
 774
 775                 $wgOut->returnToMain( false );
 776         }
 777
 778         /** */
 779         function userBlockedMessage() {
 780                 global $wgOut, $wgUser;
 781
 782                 # Let's be nice about this, it's likely that this feature will be used
 783                 # for blocking large numbers of innocent people, e.g. range blocks on
 784                 # schools. Don't blame it on the user. There's a small chance that it
 785                 # really is the user's fault, i.e. the username is blocked and they
 786                 # haven't bothered to log out before trying to create an account to
 787                 # evade it, but we'll leave that to their guilty conscience to figure
 788                 # out.
 789
 790                 $wgOut->setPageTitle( wfMsg( 'cantcreateaccounttitle' ) );
 791                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 792                 $wgOut->setArticleRelated( false );
 793
 794                 $ip = wfGetIP();
 795                 $blocker = User::whoIs( $wgUser->mBlock->mBy );
 796                 $block_reason = $wgUser->mBlock->mReason;
 797
 798                 if ( strval( $block_reason ) === '' ) {
 799                         $block_reason = wfMsg( 'blockednoreason' );
 800                 }
 801                 $wgOut->addWikiMsg( 'cantcreateaccount-text', $ip, $block_reason, $blocker );
 802                 $wgOut->returnToMain( false );
 803         }
 804
 805         /**
 806          * @private
 807          */
 808         function mainLoginForm( $msg, $msgtype = 'error' ) {
 809                 global $wgUser, $wgOut, $wgHiddenPrefs, $wgEnableEmail;
 810                 global $wgCookiePrefix, $wgLoginLanguageSelector;
 811                 global $wgAuth, $wgEmailConfirmToEdit, $wgCookieExpiration;
 812
 813                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 814
 815                 if ( $this->mType == 'signup' ) {
 816                         // Block signup here if in readonly. Keeps user from
 817                         // going through the process (filling out data, etc)
 818                         // and being informed later.
 819                         if ( wfReadOnly() ) {
 820                                 $wgOut->readOnlyPage();
 821                                 return;
 822                         } elseif ( $wgUser->isBlockedFromCreateAccount() ) {
 823                                 $this->userBlockedMessage();
 824                                 return;
 825                         } elseif ( count( $permErrors = $titleObj->getUserPermissionsErrors( 'createaccount', $wgUser, true ) )>0 ) {
 826                                 $wgOut->showPermissionsErrorPage( $permErrors, 'createaccount' );
 827                                 return;
 828                         }
 829                 }
 830
 831                 if ( '' == $this->mName ) {
 832                         if ( $wgUser->isLoggedIn() ) {
 833                                 $this->mName = $wgUser->getName();
 834                         } else {
 835                                 $this->mName = isset( $_COOKIE[$wgCookiePrefix.'UserName'] ) ? $_COOKIE[$wgCookiePrefix.'UserName'] : null;
 836                         }
 837                 }
 838
 839                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 840
 841                 if ( $this->mType == 'signup' ) {
 842                         $template = new UsercreateTemplate();
 843                         $q = 'action=submitlogin&type=signup';
 844                         $linkq = 'type=login';
 845                         $linkmsg = 'gotaccount';
 846                 } else {
 847                         $template = new UserloginTemplate();
 848                         $q = 'action=submitlogin&type=login';
 849                         $linkq = 'type=signup';
 850                         $linkmsg = 'nologin';
 851                 }
 852
 853                 if ( !empty( $this->mReturnTo ) ) {
 854                         $returnto = '&returnto=' . wfUrlencode( $this->mReturnTo );
 855                         $q .= $returnto;
 856                         $linkq .= $returnto;
 857                 }
 858
 859                 # Pass any language selection on to the mode switch link
 860                 if( $wgLoginLanguageSelector && $this->mLanguage )
 861                         $linkq .= '&uselang=' . $this->mLanguage;
 862
 863                 $link = '<a href="' . htmlspecialchars ( $titleObj->getLocalUrl( $linkq ) ) . '">';
 864                 $link .= wfMsgHtml( $linkmsg . 'link' ); # Calling either 'gotaccountlink' or 'nologinlink'
 865                 $link .= '</a>';
 866
 867                 # Don't show a "create account" link if the user can't
 868                 if( $this->showCreateOrLoginLink( $wgUser ) )
 869                         $template->set( 'link', wfMsgHtml( $linkmsg, $link ) );
 870                 else
 871                         $template->set( 'link', '' );
 872
 873                 $template->set( 'header', '' );
 874                 $template->set( 'name', $this->mName );
 875                 $template->set( 'password', $this->mPassword );
 876                 $template->set( 'retype', $this->mRetype );
 877                 $template->set( 'email', $this->mEmail );
 878                 $template->set( 'realname', $this->mRealName );
 879                 $template->set( 'domain', $this->mDomain );
 880
 881                 $template->set( 'action', $titleObj->getLocalUrl( $q ) );
 882                 $template->set( 'message', $msg );
 883                 $template->set( 'messagetype', $msgtype );
 884                 $template->set( 'createemail', $wgEnableEmail && $wgUser->isLoggedIn() );
 885                 $template->set( 'userealname', !in_array( 'realname', $wgHiddenPrefs ) );
 886                 $template->set( 'useemail', $wgEnableEmail );
 887                 $template->set( 'emailrequired', $wgEmailConfirmToEdit );
 888                 $template->set( 'canreset', $wgAuth->allowPasswordChange() );
 889                 $template->set( 'canremember', ( $wgCookieExpiration > 0 ) );
 890                 $template->set( 'remember', $wgUser->getOption( 'rememberpassword' ) or $this->mRemember  );
 891
 892                 # Prepare language selection links as needed
 893                 if( $wgLoginLanguageSelector ) {
 894                         $template->set( 'languages', $this->makeLanguageSelector() );
 895                         if( $this->mLanguage )
 896                                 $template->set( 'uselang', $this->mLanguage );
 897                 }
 898
 899                 // Give authentication and captcha plugins a chance to modify the form
 900                 $wgAuth->modifyUITemplate( $template );
 901                 if ( $this->mType == 'signup' ) {
 902                         wfRunHooks( 'UserCreateForm', array( &$template ) );
 903                 } else {
 904                         wfRunHooks( 'UserLoginForm', array( &$template ) );
 905                 }
 906
 907                 $wgOut->setPageTitle( wfMsg( 'userlogin' ) );
 908                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 909                 $wgOut->setArticleRelated( false );
 910                 $wgOut->disallowUserJs();  // just in case...
 911                 $wgOut->addTemplate( $template );
 912         }
 913
 914         /**
 915          * @private
 916          */
 917         function showCreateOrLoginLink( &$user ) {
 918                 if( $this->mType == 'signup' ) {
 919                         return( true );
 920                 } elseif( $user->isAllowed( 'createaccount' ) ) {
 921                         return( true );
 922                 } else {
 923                         return( false );
 924                 }
 925         }
 926
 927         /**
 928          * Check if a session cookie is present.
 929          *
 930          * This will not pick up a cookie set during _this_ request, but is meant
 931          * to ensure that the client is returning the cookie which was set on a
 932          * previous pass through the system.
 933          *
 934          * @private
 935          */
 936         function hasSessionCookie() {
 937                 global $wgDisableCookieCheck, $wgRequest;
 938                 return $wgDisableCookieCheck ? true : $wgRequest->checkSessionCookie();
 939         }
 940
 941         /**
 942          * @private
 943          */
 944         function cookieRedirectCheck( $type ) {
 945                 global $wgOut;
 946
 947                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 948                 $query = array( 'wpCookieCheck' => $type );
 949                 if ( $this->mReturnTo ) $query['returnto'] = $this->mReturnTo;
 950                 $check = $titleObj->getFullURL( $query );
 951
 952                 return $wgOut->redirect( $check );
 953         }
 954
 955         /**
 956          * @private
 957          */
 958         function onCookieRedirectCheck( $type ) {
 959                 if ( !$this->hasSessionCookie() ) {
 960                         if ( $type == 'new' ) {
 961                                 return $this->mainLoginForm( wfMsgExt( 'nocookiesnew', array( 'parseinline' ) ) );
 962                         } else if ( $type == 'login' ) {
 963                                 return $this->mainLoginForm( wfMsgExt( 'nocookieslogin', array( 'parseinline' ) ) );
 964                         } else {
 965                                 # shouldn't happen
 966                                 return $this->mainLoginForm( wfMsg( 'error' ) );
 967                         }
 968                 } else {
 969                         return $this->successfulLogin();
 970                 }
 971         }
 972
 973         /**
 974          * @private
 975          */
 976         function throttleHit( $limit ) {
 977                 $this->mainLoginForm( wfMsgExt( 'acct_creation_throttle_hit', array( 'parseinline' ), $limit ) );
 978         }
 979
 980         /**
 981          * Produce a bar of links which allow the user to select another language
 982          * during login/registration but retain "returnto"
 983          *
 984          * @return string
 985          */
 986         function makeLanguageSelector() {
 987                 global $wgLang;
 988
 989                 $msg = wfMsgForContent( 'loginlanguagelinks' );
 990                 if( $msg != '' && !wfEmptyMsg( 'loginlanguagelinks', $msg ) ) {
 991                         $langs = explode( "\n", $msg );
 992                         $links = array();
 993                         foreach( $langs as $lang ) {
 994                                 $lang = trim( $lang, '* ' );
 995                                 $parts = explode( '|', $lang );
 996                                 if (count($parts) >= 2) {
 997                                         $links[] = $this->makeLanguageSelectorLink( $parts[0], $parts[1] );
 998                                 }
 999                         }
1000                         return count( $links ) > 0 ? wfMsgHtml( 'loginlanguagelabel', $wgLang->pipeList( $links ) ) : '';
1001                 } else {
1002                         return '';
1003                 }
1004         }
1005
1006         /**
1007          * Create a language selector link for a particular language
1008          * Links back to this page preserving type and returnto
1009          *
1010          * @param $text Link text
1011          * @param $lang Language code
1012          */
1013         function makeLanguageSelectorLink( $text, $lang ) {
1014                 global $wgUser;
1015                 $self = SpecialPage::getTitleFor( 'Userlogin' );
1016                 $attr = array( 'uselang' => $lang );
1017                 if( $this->mType == 'signup' )
1018                         $attr['type'] = 'signup';
1019                 if( $this->mReturnTo )
1020                         $attr['returnto'] = $this->mReturnTo;
1021                 $skin = $wgUser->getSkin();
1022                 return $skin->linkKnown(
1023                         $self,
1024                         htmlspecialchars( $text ),
1025                         array(),
1026                         $attr
1027                 );
1028         }
1029 }