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                         $this->mainLoginForm( wfMsg( 'badretype' ) );
 276                         return false;
 277                 }
 278
 279                 # check for minimal password length
 280                 if ( !$u->isValidPassword( $this->mPassword ) ) {
 281                         if ( !$this->mCreateaccountMail ) {
 282                                 $this->mainLoginForm( wfMsgExt( 'passwordtooshort', array( 'parsemag' ), $wgMinimalPasswordLength ) );
 283                                 return false;
 284                         } else {
 285                                 # do not force a password for account creation by email
 286                                 # set invalid password, it will be replaced later by a random generated password
 287                                 $this->mPassword = null;
 288                         }
 289                 }
 290
 291                 # if you need a confirmed email address to edit, then obviously you
 292                 # need an email address.
 293                 if ( $wgEmailConfirmToEdit && empty( $this->mEmail ) ) {
 294                         $this->mainLoginForm( wfMsg( 'noemailtitle' ) );
 295                         return false;
 296                 }
 297
 298                 if( !empty( $this->mEmail ) && !User::isValidEmailAddr( $this->mEmail ) ) {
 299                         $this->mainLoginForm( wfMsg( 'invalidemailaddress' ) );
 300                         return false;
 301                 }
 302
 303                 # Set some additional data so the AbortNewAccount hook can be used for
 304                 # more than just username validation
 305                 $u->setEmail( $this->mEmail );
 306                 $u->setRealName( $this->mRealName );
 307
 308                 $abortError = '';
 309                 if( !wfRunHooks( 'AbortNewAccount', array( $u, &$abortError ) ) ) {
 310                         // Hook point to add extra creation throttles and blocks
 311                         wfDebug( "LoginForm::addNewAccountInternal: a hook blocked creation\n" );
 312                         $this->mainLoginForm( $abortError );
 313                         return false;
 314                 }
 315
 316                 if ( $wgAccountCreationThrottle && $wgUser->isPingLimitable() ) {
 317                         $key = wfMemcKey( 'acctcreate', 'ip', $ip );
 318                         $value = $wgMemc->get( $key );
 319                         if ( !$value ) {
 320                                 $wgMemc->set( $key, 0, 86400 );
 321                         }
 322                         if ( $value >= $wgAccountCreationThrottle ) {
 323                                 $this->throttleHit( $wgAccountCreationThrottle );
 324                                 return false;
 325                         }
 326                         $wgMemc->incr( $key );
 327                 }
 328
 329                 if( !$wgAuth->addUser( $u, $this->mPassword, $this->mEmail, $this->mRealName ) ) {
 330                         $this->mainLoginForm( wfMsg( 'externaldberror' ) );
 331                         return false;
 332                 }
 333
 334                 return $this->initUser( $u, false );
 335         }
 336
 337         /**
 338          * Actually add a user to the database.
 339          * Give it a User object that has been initialised with a name.
 340          *
 341          * @param $u User object.
 342          * @param $autocreate boolean -- true if this is an autocreation via auth plugin
 343          * @return User object.
 344          * @private
 345          */
 346         function initUser( $u, $autocreate ) {
 347                 global $wgAuth;
 348
 349                 $u->addToDatabase();
 350
 351                 if ( $wgAuth->allowPasswordChange() ) {
 352                         $u->setPassword( $this->mPassword );
 353                 }
 354
 355                 $u->setEmail( $this->mEmail );
 356                 $u->setRealName( $this->mRealName );
 357                 $u->setToken();
 358
 359                 $wgAuth->initUser( $u, $autocreate );
 360
 361                 $u->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 362                 $u->saveSettings();
 363
 364                 # Update user count
 365                 $ssUpdate = new SiteStatsUpdate( 0, 0, 0, 0, 1 );
 366                 $ssUpdate->doUpdate();
 367
 368                 return $u;
 369         }
 370
 371         /**
 372          * Internally authenticate the login request.
 373          *
 374          * This may create a local account as a side effect if the
 375          * authentication plugin allows transparent local account
 376          * creation.
 377          *
 378          * @public
 379          */
 380         function authenticateUserData() {
 381                 global $wgUser, $wgAuth;
 382                 if ( '' == $this->mName ) {
 383                         return self::NO_NAME;
 384                 }
 385
 386                 global $wgPasswordAttemptThrottle;
 387
 388                 $throttleCount=0;
 389                 if ( is_array($wgPasswordAttemptThrottle) ) {
 390                         $throttleKey = wfMemcKey( 'password-throttle', wfGetIP(), md5( $this->mName ) );
 391                         $count = $wgPasswordAttemptThrottle['count'];
 392                         $period = $wgPasswordAttemptThrottle['seconds'];
 393
 394                         global $wgMemc;
 395                         $throttleCount = $wgMemc->get($throttleKey);
 396                         if ( !$throttleCount ) {
 397                                 $wgMemc->add( $throttleKey, 1, $period ); // start counter
 398                         } else if ( $throttleCount < $count ) {
 399                                 $wgMemc->incr($throttleKey);
 400                         } else if ( $throttleCount >= $count ) {
 401                                 return self::THROTTLED;
 402                         }
 403                 }
 404
 405                 // Load $wgUser now, and check to see if we're logging in as the same
 406                 // name. This is necessary because loading $wgUser (say by calling
 407                 // getName()) calls the UserLoadFromSession hook, which potentially
 408                 // creates the user in the database. Until we load $wgUser, checking
 409                 // for user existence using User::newFromName($name)->getId() below
 410                 // will effectively be using stale data.
 411                 if ( $wgUser->getName() === $this->mName ) {
 412                         wfDebug( __METHOD__.": already logged in as {$this->mName}\n" );
 413                         return self::SUCCESS;
 414                 }
 415                 $u = User::newFromName( $this->mName );
 416                 if( is_null( $u ) || !User::isUsableName( $u->getName() ) ) {
 417                         return self::ILLEGAL;
 418                 }
 419
 420                 $isAutoCreated = false;
 421                 if ( 0 == $u->getID() ) {
 422                         $status = $this->attemptAutoCreate( $u );
 423                         if ( $status !== self::SUCCESS ) {
 424                                 return $status;
 425                         } else {
 426                                 $isAutoCreated = true;
 427                         }
 428                 } else {
 429                         $u->load();
 430                 }
 431
 432                 // Give general extensions, such as a captcha, a chance to abort logins
 433                 $abort = self::ABORTED;
 434                 if( !wfRunHooks( 'AbortLogin', array( $u, $this->mPassword, &$abort ) ) ) {
 435                         return $abort;
 436                 }
 437
 438                 if (!$u->checkPassword( $this->mPassword )) {
 439                         if( $u->checkTemporaryPassword( $this->mPassword ) ) {
 440                                 // The e-mailed temporary password should not be used for actu-
 441                                 // al logins; that's a very sloppy habit, and insecure if an
 442                                 // attacker has a few seconds to click "search" on someone's o-
 443                                 // pen mail reader.
 444                                 //
 445                                 // Allow it to be used only to reset the password a single time
 446                                 // to a new value, which won't be in the user's e-mail ar-
 447                                 // chives.
 448                                 //
 449                                 // For backwards compatibility, we'll still recognize it at the
 450                                 // login form to minimize surprises for people who have been
 451                                 // logging in with a temporary password for some time.
 452                                 //
 453                                 // As a side-effect, we can authenticate the user's e-mail ad-
 454                                 // dress if it's not already done, since the temporary password
 455                                 // was sent via e-mail.
 456                                 if( !$u->isEmailConfirmed() ) {
 457                                         $u->confirmEmail();
 458                                         $u->saveSettings();
 459                                 }
 460
 461                                 // At this point we just return an appropriate code/ indicating
 462                                 // that the UI should show a password reset form; bot inter-
 463                                 // faces etc will probably just fail cleanly here.
 464                                 $retval = self::RESET_PASS;
 465                         } else {
 466                                 $retval = '' == $this->mPassword ? self::EMPTY_PASS : self::WRONG_PASS;
 467                         }
 468                 } else {
 469                         $wgAuth->updateUser( $u );
 470                         $wgUser = $u;
 471
 472                         // Please reset throttle for successful logins, thanks!
 473                         if($throttleCount) {
 474                                 $wgMemc->delete($throttleKey);
 475                         }
 476
 477                         if ( $isAutoCreated ) {
 478                                 // Must be run after $wgUser is set, for correct new user log
 479                                 wfRunHooks( 'AuthPluginAutoCreate', array( $wgUser ) );
 480                         }
 481
 482                         $retval = self::SUCCESS;
 483                 }
 484                 wfRunHooks( 'LoginAuthenticateAudit', array( $u, $this->mPassword, $retval ) );
 485                 return $retval;
 486         }
 487
 488         /**
 489          * Attempt to automatically create a user on login. Only succeeds if there
 490          * is an external authentication method which allows it.
 491          * @return integer Status code
 492          */
 493         function attemptAutoCreate( $user ) {
 494                 global $wgAuth, $wgUser;
 495                 /**
 496                  * If the external authentication plugin allows it, automatically cre-
 497                  * ate a new account for users that are externally defined but have not
 498                  * yet logged in.
 499                  */
 500                 if ( !$wgAuth->autoCreate() ) {
 501                         return self::NOT_EXISTS;
 502                 }
 503                 if ( !$wgAuth->userExists( $user->getName() ) ) {
 504                         wfDebug( __METHOD__.": user does not exist\n" );
 505                         return self::NOT_EXISTS;
 506                 }
 507                 if ( !$wgAuth->authenticate( $user->getName(), $this->mPassword ) ) {
 508                         wfDebug( __METHOD__.": \$wgAuth->authenticate() returned false, aborting\n" );
 509                         return self::WRONG_PLUGIN_PASS;
 510                 }
 511                 if ( $wgUser->isBlockedFromCreateAccount() ) {
 512                         wfDebug( __METHOD__.": user is blocked from account creation\n" );
 513                         return self::CREATE_BLOCKED;
 514                 }
 515
 516                 wfDebug( __METHOD__.": creating account\n" );
 517                 $user = $this->initUser( $user, true );
 518                 return self::SUCCESS;
 519         }
 520
 521         function processLogin() {
 522                 global $wgUser, $wgAuth;
 523
 524                 switch ($this->authenticateUserData())
 525                 {
 526                         case self::SUCCESS:
 527                                 # We've verified now, update the real record
 528                                 if( (bool)$this->mRemember != (bool)$wgUser->getOption( 'rememberpassword' ) ) {
 529                                         $wgUser->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 530                                         $wgUser->saveSettings();
 531                                 } else {
 532                                         $wgUser->invalidateCache();
 533                                 }
 534                                 $wgUser->setCookies();
 535
 536                                 // Reset the throttle
 537                                 $key = wfMemcKey( 'password-throttle', wfGetIP(), md5( $this->mName ) );
 538                                 global $wgMemc;
 539                                 $wgMemc->delete( $key );
 540
 541                                 if( $this->hasSessionCookie() || $this->mSkipCookieCheck ) {
 542                                         /* Replace the language object to provide user interface in
 543                                          * correct language immediately on this first page load.
 544                                          */
 545                                         global $wgLang, $wgRequest;
 546                                         $code = $wgRequest->getVal( 'uselang', $wgUser->getOption( 'language' ) );
 547                                         $wgLang = Language::factory( $code );
 548                                         return $this->successfulLogin();
 549                                 } else {
 550                                         return $this->cookieRedirectCheck( 'login' );
 551                                 }
 552                                 break;
 553
 554                         case self::NO_NAME:
 555                         case self::ILLEGAL:
 556                                 $this->mainLoginForm( wfMsg( 'noname' ) );
 557                                 break;
 558                         case self::WRONG_PLUGIN_PASS:
 559                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 560                                 break;
 561                         case self::NOT_EXISTS:
 562                                 if( $wgUser->isAllowed( 'createaccount' ) ){
 563                                         $this->mainLoginForm( wfMsgWikiHtml( 'nosuchuser', htmlspecialchars( $this->mName ) ) );
 564                                 } else {
 565                                         $this->mainLoginForm( wfMsg( 'nosuchusershort', htmlspecialchars( $this->mName ) ) );
 566                                 }
 567                                 break;
 568                         case self::WRONG_PASS:
 569                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 570                                 break;
 571                         case self::EMPTY_PASS:
 572                                 $this->mainLoginForm( wfMsg( 'wrongpasswordempty' ) );
 573                                 break;
 574                         case self::RESET_PASS:
 575                                 $this->resetLoginForm( wfMsg( 'resetpass_announce' ) );
 576                                 break;
 577                         case self::CREATE_BLOCKED:
 578                                 $this->userBlockedMessage();
 579                                 break;
 580                         case self::THROTTLED:
 581                                 $this->mainLoginForm( wfMsg( 'login-throttled' ) );
 582                                 break;
 583                         default:
 584                                 throw new MWException( "Unhandled case value" );
 585                 }
 586         }
 587
 588         function resetLoginForm( $error ) {
 589                 global $wgOut;
 590                 $wgOut->addHTML( Xml::element('p', array( 'class' => 'error' ), $error ) );
 591                 $reset = new SpecialResetpass();
 592                 $reset->execute( null );
 593         }
 594
 595         /**
 596          * @private
 597          */
 598         function mailPassword() {
 599                 global $wgUser, $wgOut, $wgAuth;
 600
 601                 if ( wfReadOnly() ) {
 602                         $wgOut->readOnlyPage();
 603                         return false;
 604                 }
 605
 606                 if( !$wgAuth->allowPasswordChange() ) {
 607                         $this->mainLoginForm( wfMsg( 'resetpass_forbidden' ) );
 608                         return;
 609                 }
 610
 611                 # Check against blocked IPs
 612                 # fixme -- should we not?
 613                 if( $wgUser->isBlocked() ) {
 614                         $this->mainLoginForm( wfMsg( 'blocked-mailpassword' ) );
 615                         return;
 616                 }
 617
 618                 # Check against the rate limiter
 619                 if( $wgUser->pingLimiter( 'mailpassword' ) ) {
 620                         $wgOut->rateLimited();
 621                         return;
 622                 }
 623
 624                 if ( '' == $this->mName ) {
 625                         $this->mainLoginForm( wfMsg( 'noname' ) );
 626                         return;
 627                 }
 628                 $u = User::newFromName( $this->mName );
 629                 if( is_null( $u ) ) {
 630                         $this->mainLoginForm( wfMsg( 'noname' ) );
 631                         return;
 632                 }
 633                 if ( 0 == $u->getID() ) {
 634                         $this->mainLoginForm( wfMsgWikiHtml( 'nosuchuser', htmlspecialchars( $u->getName() ) ) );
 635                         return;
 636                 }
 637
 638                 # Check against password throttle
 639                 if ( $u->isPasswordReminderThrottled() ) {
 640                         global $wgPasswordReminderResendTime;
 641                         # Round the time in hours to 3 d.p., in case someone is specifying
 642                         # minutes or seconds.
 643                         $this->mainLoginForm( wfMsgExt( 'throttled-mailpassword', array( 'parsemag' ),
 644                                 round( $wgPasswordReminderResendTime, 3 ) ) );
 645                         return;
 646                 }
 647
 648                 $result = $this->mailPasswordInternal( $u, true, 'passwordremindertitle', 'passwordremindertext' );
 649                 if( WikiError::isError( $result ) ) {
 650                         $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
 651                 } else {
 652                         $this->mainLoginForm( wfMsg( 'passwordsent', $u->getName() ), 'success' );
 653                 }
 654         }
 655
 656
 657         /**
 658          * @param object user
 659          * @param bool throttle
 660          * @param string message name of email title
 661          * @param string message name of email text
 662          * @return mixed true on success, WikiError on failure
 663          * @private
 664          */
 665         function mailPasswordInternal( $u, $throttle = true, $emailTitle = 'passwordremindertitle', $emailText = 'passwordremindertext' ) {
 666                 global $wgServer, $wgScript, $wgUser, $wgNewPasswordExpiry;
 667
 668                 if ( '' == $u->getEmail() ) {
 669                         return new WikiError( wfMsg( 'noemail', $u->getName() ) );
 670                 }
 671                 $ip = wfGetIP();
 672                 if( !$ip ) {
 673                         return new WikiError( wfMsg( 'badipaddress' ) );
 674                 }
 675
 676                 wfRunHooks( 'User::mailPasswordInternal', array(&$wgUser, &$ip, &$u) );
 677
 678                 $np = $u->randomPassword();
 679                 $u->setNewpassword( $np, $throttle );
 680                 $u->saveSettings();
 681
 682                 $m = wfMsgExt( $emailText, array( 'parsemag' ), $ip, $u->getName(), $np,
 683                                 $wgServer . $wgScript, round( $wgNewPasswordExpiry / 86400 ) );
 684                 $result = $u->sendMail( wfMsg( $emailTitle ), $m );
 685
 686                 return $result;
 687         }
 688
 689
 690         /**
 691          * Run any hooks registered for logins, then HTTP redirect to
 692          * $this->mReturnTo (or Main Page if that's undefined).  Formerly we had a
 693          * nice message here, but that's really not as useful as just being sent to
 694          * wherever you logged in from.  It should be clear that the action was
 695          * successful, given the lack of error messages plus the appearance of your
 696          * name in the upper right.
 697          *
 698          * @private
 699          */
 700         function successfulLogin() {
 701                 global $wgUser, $wgOut;
 702
 703                 # Run any hooks; display injected HTML if any, else redirect
 704                 $injected_html = '';
 705                 wfRunHooks('UserLoginComplete', array(&$wgUser, &$injected_html));
 706
 707                 if( $injected_html !== '' ) {
 708                         $this->displaySuccessfulLogin( 'loginsuccess', $injected_html );
 709                 } else {
 710                         $titleObj = Title::newFromText( $this->mReturnTo );
 711                         if ( !$titleObj instanceof Title ) {
 712                                 $titleObj = Title::newMainPage();
 713                         }
 714
 715                         $wgOut->redirect( $titleObj->getFullURL() );
 716                 }
 717         }
 718
 719         /**
 720          * Run any hooks registered for logins, then display a message welcoming
 721          * the user.
 722          *
 723          * @private
 724          */
 725         function successfulCreation() {
 726                 global $wgUser, $wgOut;
 727
 728                 # Run any hooks; display injected HTML
 729                 $injected_html = '';
 730                 wfRunHooks('UserLoginComplete', array(&$wgUser, &$injected_html));
 731
 732                 $this->displaySuccessfulLogin( 'welcomecreation', $injected_html );
 733         }
 734
 735         /**
 736          * Display a "login successful" page.
 737          */
 738         private function displaySuccessfulLogin( $msgname, $injected_html ) {
 739                 global $wgOut, $wgUser;
 740
 741                 $wgOut->setPageTitle( wfMsg( 'loginsuccesstitle' ) );
 742                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 743                 $wgOut->setArticleRelated( false );
 744                 $wgOut->addWikiMsg( $msgname, $wgUser->getName() );
 745                 $wgOut->addHTML( $injected_html );
 746
 747                 if ( !empty( $this->mReturnTo ) ) {
 748                         $wgOut->returnToMain( null, $this->mReturnTo );
 749                 } else {
 750                         $wgOut->returnToMain( null );
 751                 }
 752         }
 753
 754         /** */
 755         function userNotPrivilegedMessage($errors) {
 756                 global $wgOut;
 757
 758                 $wgOut->setPageTitle( wfMsg( 'permissionserrors' ) );
 759                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 760                 $wgOut->setArticleRelated( false );
 761
 762                 $wgOut->addWikitext( $wgOut->formatPermissionsErrorMessage( $errors, 'createaccount' ) );
 763                 // Stuff that might want to be added at the end. For example, instruc-
 764                 // tions if blocked.
 765                 $wgOut->addWikiMsg( 'cantcreateaccount-nonblock-text' );
 766
 767                 $wgOut->returnToMain( false );
 768         }
 769
 770         /** */
 771         function userBlockedMessage() {
 772                 global $wgOut, $wgUser;
 773
 774                 # Let's be nice about this, it's likely that this feature will be used
 775                 # for blocking large numbers of innocent people, e.g. range blocks on
 776                 # schools. Don't blame it on the user. There's a small chance that it
 777                 # really is the user's fault, i.e. the username is blocked and they
 778                 # haven't bothered to log out before trying to create an account to
 779                 # evade it, but we'll leave that to their guilty conscience to figure
 780                 # out.
 781
 782                 $wgOut->setPageTitle( wfMsg( 'cantcreateaccounttitle' ) );
 783                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 784                 $wgOut->setArticleRelated( false );
 785
 786                 $ip = wfGetIP();
 787                 $blocker = User::whoIs( $wgUser->mBlock->mBy );
 788                 $block_reason = $wgUser->mBlock->mReason;
 789
 790                 if ( strval( $block_reason ) === '' ) {
 791                         $block_reason = wfMsg( 'blockednoreason' );
 792                 }
 793                 $wgOut->addWikiMsg( 'cantcreateaccount-text', $ip, $block_reason, $blocker );
 794                 $wgOut->returnToMain( false );
 795         }
 796
 797         /**
 798          * @private
 799          */
 800         function mainLoginForm( $msg, $msgtype = 'error' ) {
 801                 global $wgUser, $wgOut, $wgHiddenPrefs, $wgEnableEmail;
 802                 global $wgCookiePrefix, $wgLoginLanguageSelector;
 803                 global $wgAuth, $wgEmailConfirmToEdit, $wgCookieExpiration;
 804
 805                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 806
 807                 if ( $this->mType == 'signup' ) {
 808                         // Block signup here if in readonly. Keeps user from
 809                         // going through the process (filling out data, etc)
 810                         // and being informed later.
 811                         if ( wfReadOnly() ) {
 812                                 $wgOut->readOnlyPage();
 813                                 return;
 814                         } elseif ( $wgUser->isBlockedFromCreateAccount() ) {
 815                                 $this->userBlockedMessage();
 816                                 return;
 817                         } elseif ( count( $permErrors = $titleObj->getUserPermissionsErrors( 'createaccount', $wgUser, true ) )>0 ) {
 818                                 $wgOut->showPermissionsErrorPage( $permErrors, 'createaccount' );
 819                                 return;
 820                         }
 821                 }
 822
 823                 if ( '' == $this->mName ) {
 824                         if ( $wgUser->isLoggedIn() ) {
 825                                 $this->mName = $wgUser->getName();
 826                         } else {
 827                                 $this->mName = isset( $_COOKIE[$wgCookiePrefix.'UserName'] ) ? $_COOKIE[$wgCookiePrefix.'UserName'] : null;
 828                         }
 829                 }
 830
 831                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 832
 833                 if ( $this->mType == 'signup' ) {
 834                         $template = new UsercreateTemplate();
 835                         $q = 'action=submitlogin&type=signup';
 836                         $linkq = 'type=login';
 837                         $linkmsg = 'gotaccount';
 838                 } else {
 839                         $template = new UserloginTemplate();
 840                         $q = 'action=submitlogin&type=login';
 841                         $linkq = 'type=signup';
 842                         $linkmsg = 'nologin';
 843                 }
 844
 845                 if ( !empty( $this->mReturnTo ) ) {
 846                         $returnto = '&returnto=' . wfUrlencode( $this->mReturnTo );
 847                         $q .= $returnto;
 848                         $linkq .= $returnto;
 849                 }
 850
 851                 # Pass any language selection on to the mode switch link
 852                 if( $wgLoginLanguageSelector && $this->mLanguage )
 853                         $linkq .= '&uselang=' . $this->mLanguage;
 854
 855                 $link = '<a href="' . htmlspecialchars ( $titleObj->getLocalUrl( $linkq ) ) . '">';
 856                 $link .= wfMsgHtml( $linkmsg . 'link' ); # Calling either 'gotaccountlink' or 'nologinlink'
 857                 $link .= '</a>';
 858
 859                 # Don't show a "create account" link if the user can't
 860                 if( $this->showCreateOrLoginLink( $wgUser ) )
 861                         $template->set( 'link', wfMsgHtml( $linkmsg, $link ) );
 862                 else
 863                         $template->set( 'link', '' );
 864
 865                 $template->set( 'header', '' );
 866                 $template->set( 'name', $this->mName );
 867                 $template->set( 'password', $this->mPassword );
 868                 $template->set( 'retype', $this->mRetype );
 869                 $template->set( 'email', $this->mEmail );
 870                 $template->set( 'realname', $this->mRealName );
 871                 $template->set( 'domain', $this->mDomain );
 872
 873                 $template->set( 'action', $titleObj->getLocalUrl( $q ) );
 874                 $template->set( 'message', $msg );
 875                 $template->set( 'messagetype', $msgtype );
 876                 $template->set( 'createemail', $wgEnableEmail && $wgUser->isLoggedIn() );
 877                 $template->set( 'userealname', !in_array( 'realname', $wgHiddenPrefs ) );
 878                 $template->set( 'useemail', $wgEnableEmail );
 879                 $template->set( 'emailrequired', $wgEmailConfirmToEdit );
 880                 $template->set( 'canreset', $wgAuth->allowPasswordChange() );
 881                 $template->set( 'canremember', ( $wgCookieExpiration > 0 ) );
 882                 $template->set( 'remember', $wgUser->getOption( 'rememberpassword' ) or $this->mRemember  );
 883
 884                 # Prepare language selection links as needed
 885                 if( $wgLoginLanguageSelector ) {
 886                         $template->set( 'languages', $this->makeLanguageSelector() );
 887                         if( $this->mLanguage )
 888                                 $template->set( 'uselang', $this->mLanguage );
 889                 }
 890
 891                 // Give authentication and captcha plugins a chance to modify the form
 892                 $wgAuth->modifyUITemplate( $template );
 893                 if ( $this->mType == 'signup' ) {
 894                         wfRunHooks( 'UserCreateForm', array( &$template ) );
 895                 } else {
 896                         wfRunHooks( 'UserLoginForm', array( &$template ) );
 897                 }
 898
 899                 $wgOut->setPageTitle( wfMsg( 'userlogin' ) );
 900                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 901                 $wgOut->setArticleRelated( false );
 902                 $wgOut->disallowUserJs();  // just in case...
 903                 $wgOut->addTemplate( $template );
 904         }
 905
 906         /**
 907          * @private
 908          */
 909         function showCreateOrLoginLink( &$user ) {
 910                 if( $this->mType == 'signup' ) {
 911                         return( true );
 912                 } elseif( $user->isAllowed( 'createaccount' ) ) {
 913                         return( true );
 914                 } else {
 915                         return( false );
 916                 }
 917         }
 918
 919         /**
 920          * Check if a session cookie is present.
 921          *
 922          * This will not pick up a cookie set during _this_ request, but is meant
 923          * to ensure that the client is returning the cookie which was set on a
 924          * previous pass through the system.
 925          *
 926          * @private
 927          */
 928         function hasSessionCookie() {
 929                 global $wgDisableCookieCheck, $wgRequest;
 930                 return $wgDisableCookieCheck ? true : $wgRequest->checkSessionCookie();
 931         }
 932
 933         /**
 934          * @private
 935          */
 936         function cookieRedirectCheck( $type ) {
 937                 global $wgOut;
 938
 939                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 940                 $query = array( 'wpCookieCheck' => $type );
 941                 if ( $this->mReturnTo ) $query['returnto'] = $this->mReturnTo;
 942                 $check = $titleObj->getFullURL( $query );
 943
 944                 return $wgOut->redirect( $check );
 945         }
 946
 947         /**
 948          * @private
 949          */
 950         function onCookieRedirectCheck( $type ) {
 951                 if ( !$this->hasSessionCookie() ) {
 952                         if ( $type == 'new' ) {
 953                                 return $this->mainLoginForm( wfMsgExt( 'nocookiesnew', array( 'parseinline' ) ) );
 954                         } else if ( $type == 'login' ) {
 955                                 return $this->mainLoginForm( wfMsgExt( 'nocookieslogin', array( 'parseinline' ) ) );
 956                         } else {
 957                                 # shouldn't happen
 958                                 return $this->mainLoginForm( wfMsg( 'error' ) );
 959                         }
 960                 } else {
 961                         return $this->successfulLogin();
 962                 }
 963         }
 964
 965         /**
 966          * @private
 967          */
 968         function throttleHit( $limit ) {
 969                 $this->mainLoginForm( wfMsgExt( 'acct_creation_throttle_hit', array( 'parseinline' ), $limit ) );
 970         }
 971
 972         /**
 973          * Produce a bar of links which allow the user to select another language
 974          * during login/registration but retain "returnto"
 975          *
 976          * @return string
 977          */
 978         function makeLanguageSelector() {
 979                 global $wgLang;
 980
 981                 $msg = wfMsgForContent( 'loginlanguagelinks' );
 982                 if( $msg != '' && !wfEmptyMsg( 'loginlanguagelinks', $msg ) ) {
 983                         $langs = explode( "\n", $msg );
 984                         $links = array();
 985                         foreach( $langs as $lang ) {
 986                                 $lang = trim( $lang, '* ' );
 987                                 $parts = explode( '|', $lang );
 988                                 if (count($parts) >= 2) {
 989                                         $links[] = $this->makeLanguageSelectorLink( $parts[0], $parts[1] );
 990                                 }
 991                         }
 992                         return count( $links ) > 0 ? wfMsgHtml( 'loginlanguagelabel', $wgLang->pipeList( $links ) ) : '';
 993                 } else {
 994                         return '';
 995                 }
 996         }
 997
 998         /**
 999          * Create a language selector link for a particular language
1000          * Links back to this page preserving type and returnto
1001          *
1002          * @param $text Link text
1003          * @param $lang Language code
1004          */
1005         function makeLanguageSelectorLink( $text, $lang ) {
1006                 global $wgUser;
1007                 $self = SpecialPage::getTitleFor( 'Userlogin' );
1008                 $attr[] = 'uselang=' . $lang;
1009                 if( $this->mType == 'signup' )
1010                         $attr[] = 'type=signup';
1011                 if( $this->mReturnTo )
1012                         $attr[] = 'returnto=' . $this->mReturnTo;
1013                 $skin = $wgUser->getSkin();
1014                 return $skin->makeKnownLinkObj( $self, htmlspecialchars( $text ), implode( '&', $attr ) );
1015         }
1016 }