includes/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
  37         var $mName, $mPassword, $mRetype, $mReturnTo, $mCookieCheck, $mPosted;
  38         var $mAction, $mCreateaccount, $mCreateaccountMail, $mMailmypassword;
  39         var $mLoginattempt, $mRemember, $mEmail, $mDomain, $mLanguage, $mSkipCookieCheck;
  40
  41         /**
  42          * Constructor
  43          * @param WebRequest $request A WebRequest object passed by reference
  44          */
  45         function LoginForm( &$request, $par = '' ) {
  46                 global $wgLang, $wgAllowRealName, $wgEnableEmail;
  47                 global $wgAuth;
  48
  49                 $this->mType = ( $par == 'signup' ) ? $par : $request->getText( 'type' ); # Check for [[Special:Userlogin/signup]]
  50                 $this->mName = $request->getText( 'wpName' );
  51                 $this->mPassword = $request->getText( 'wpPassword' );
  52                 $this->mRetype = $request->getText( 'wpRetype' );
  53                 $this->mDomain = $request->getText( 'wpDomain' );
  54                 $this->mReturnTo = $request->getVal( 'returnto' );
  55                 $this->mCookieCheck = $request->getVal( 'wpCookieCheck' );
  56                 $this->mPosted = $request->wasPosted();
  57                 $this->mCreateaccount = $request->getCheck( 'wpCreateaccount' );
  58                 $this->mCreateaccountMail = $request->getCheck( 'wpCreateaccountMail' )
  59                                             && $wgEnableEmail;
  60                 $this->mMailmypassword = $request->getCheck( 'wpMailmypassword' )
  61                                          && $wgEnableEmail;
  62                 $this->mLoginattempt = $request->getCheck( 'wpLoginattempt' );
  63                 $this->mAction = $request->getVal( 'action' );
  64                 $this->mRemember = $request->getCheck( 'wpRemember' );
  65                 $this->mLanguage = $request->getText( 'uselang' );
  66                 $this->mSkipCookieCheck = $request->getCheck( 'wpSkipCookieCheck' );
  67
  68                 if( $wgEnableEmail ) {
  69                         $this->mEmail = $request->getText( 'wpEmail' );
  70                 } else {
  71                         $this->mEmail = '';
  72                 }
  73                 if( $wgAllowRealName ) {
  74                     $this->mRealName = $request->getText( 'wpRealName' );
  75                 } else {
  76                     $this->mRealName = '';
  77                 }
  78
  79                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
  80                         $this->mDomain = 'invaliddomain';
  81                 }
  82                 $wgAuth->setDomain( $this->mDomain );
  83
  84                 # When switching accounts, it sucks to get automatically logged out
  85                 if( $this->mReturnTo == $wgLang->specialPage( 'Userlogout' ) ) {
  86                         $this->mReturnTo = '';
  87                 }
  88         }
  89
  90         function execute() {
  91                 if ( !is_null( $this->mCookieCheck ) ) {
  92                         $this->onCookieRedirectCheck( $this->mCookieCheck );
  93                         return;
  94                 } else if( $this->mPosted ) {
  95                         if( $this->mCreateaccount ) {
  96                                 return $this->addNewAccount();
  97                         } else if ( $this->mCreateaccountMail ) {
  98                                 return $this->addNewAccountMailPassword();
  99                         } else if ( $this->mMailmypassword ) {
 100                                 return $this->mailPassword();
 101                         } else if ( ( 'submitlogin' == $this->mAction ) || $this->mLoginattempt ) {
 102                                 return $this->processLogin();
 103                         }
 104                 }
 105                 $this->mainLoginForm( '' );
 106         }
 107
 108         /**
 109          * @private
 110          */
 111         function addNewAccountMailPassword() {
 112                 global $wgOut;
 113
 114                 if ('' == $this->mEmail) {
 115                         $this->mainLoginForm( wfMsg( 'noemail', htmlspecialchars( $this->mName ) ) );
 116                         return;
 117                 }
 118
 119                 $u = $this->addNewaccountInternal();
 120
 121                 if ($u == NULL) {
 122                         return;
 123                 }
 124
 125                 // Wipe the initial password and mail a temporary one
 126                 $u->setPassword( null );
 127                 $u->saveSettings();
 128                 $result = $this->mailPasswordInternal( $u, false, 'createaccount-title', 'createaccount-text' );
 129
 130                 wfRunHooks( 'AddNewAccount', array( $u, true ) );
 131
 132                 $wgOut->setPageTitle( wfMsg( 'accmailtitle' ) );
 133                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 134                 $wgOut->setArticleRelated( false );
 135
 136                 if( WikiError::isError( $result ) ) {
 137                         $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
 138                 } else {
 139                         $wgOut->addWikiMsg( 'accmailtext', $u->getName(), $u->getEmail() );
 140                         $wgOut->returnToMain( false );
 141                 }
 142                 $u = 0;
 143         }
 144
 145
 146         /**
 147          * @private
 148          */
 149         function addNewAccount() {
 150                 global $wgUser, $wgEmailAuthentication;
 151
 152                 # Create the account and abort if there's a problem doing so
 153                 $u = $this->addNewAccountInternal();
 154                 if( $u == NULL )
 155                         return;
 156
 157                 # If we showed up language selection links, and one was in use, be
 158                 # smart (and sensible) and save that language as the user's preference
 159                 global $wgLoginLanguageSelector;
 160                 if( $wgLoginLanguageSelector && $this->mLanguage )
 161                         $u->setOption( 'language', $this->mLanguage );
 162
 163                 # Send out an email authentication message if needed
 164                 if( $wgEmailAuthentication && User::isValidEmailAddr( $u->getEmail() ) ) {
 165                         global $wgOut;
 166                         $error = $u->sendConfirmationMail();
 167                         if( WikiError::isError( $error ) ) {
 168                                 $wgOut->addWikiMsg( 'confirmemail_sendfailed', $error->getMessage() );
 169                         } else {
 170                                 $wgOut->addWikiMsg( 'confirmemail_oncreate' );
 171                         }
 172                 }
 173
 174                 # Save settings (including confirmation token)
 175                 $u->saveSettings();
 176
 177                 # If not logged in, assume the new account as the current one and set session cookies
 178                 # then show a "welcome" message or a "need cookies" message as needed
 179                 if( $wgUser->isAnon() ) {
 180                         $wgUser = $u;
 181                         $wgUser->setCookies();
 182                         wfRunHooks( 'AddNewAccount', array( $wgUser ) );
 183                         if( $this->hasSessionCookie() ) {
 184                                 return $this->successfulLogin( wfMsg( 'welcomecreation', $wgUser->getName() ), false );
 185                         } else {
 186                                 return $this->cookieRedirectCheck( 'new' );
 187                         }
 188                 } else {
 189                         # Confirm that the account was created
 190                         global $wgOut;
 191                         $self = SpecialPage::getTitleFor( 'Userlogin' );
 192                         $wgOut->setPageTitle( wfMsgHtml( 'accountcreated' ) );
 193                         $wgOut->setArticleRelated( false );
 194                         $wgOut->setRobotPolicy( 'noindex,nofollow' );
 195                         $wgOut->addHtml( wfMsgWikiHtml( 'accountcreatedtext', $u->getName() ) );
 196                         $wgOut->returnToMain( false, $self );
 197                         wfRunHooks( 'AddNewAccount', array( $u ) );
 198                         return true;
 199                 }
 200         }
 201
 202         /**
 203          * @private
 204          */
 205         function addNewAccountInternal() {
 206                 global $wgUser, $wgOut;
 207                 global $wgEnableSorbs, $wgProxyWhitelist;
 208                 global $wgMemc, $wgAccountCreationThrottle;
 209                 global $wgAuth, $wgMinimalPasswordLength;
 210                 global $wgEmailConfirmToEdit;
 211
 212                 // If the user passes an invalid domain, something is fishy
 213                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
 214                         $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 215                         return false;
 216                 }
 217
 218                 // If we are not allowing users to login locally, we should
 219                 // be checking to see if the user is actually able to
 220                 // authenticate to the authentication server before they
 221                 // create an account (otherwise, they can create a local account
 222                 // and login as any domain user). We only need to check this for
 223                 // domains that aren't local.
 224                 if( 'local' != $this->mDomain && '' != $this->mDomain ) {
 225                         if( !$wgAuth->canCreateAccounts() && ( !$wgAuth->userExists( $this->mName ) || !$wgAuth->authenticate( $this->mName, $this->mPassword ) ) ) {
 226                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 227                                 return false;
 228                         }
 229                 }
 230
 231                 if ( wfReadOnly() ) {
 232                         $wgOut->readOnlyPage();
 233                         return false;
 234                 }
 235
 236                 # Check permissions
 237                 if ( !$wgUser->isAllowed( 'createaccount' ) ) {
 238                         $this->userNotPrivilegedMessage();
 239                         return false;
 240                 } elseif ( $wgUser->isBlockedFromCreateAccount() ) {
 241                         $this->userBlockedMessage();
 242                         return false;
 243                 }
 244
 245                 $ip = wfGetIP();
 246                 if ( $wgEnableSorbs && !in_array( $ip, $wgProxyWhitelist ) &&
 247                   $wgUser->inSorbsBlacklist( $ip ) )
 248                 {
 249                         $this->mainLoginForm( wfMsg( 'sorbs_create_account_reason' ) . ' (' . htmlspecialchars( $ip ) . ')' );
 250                         return;
 251                 }
 252
 253                 # Now create a dummy user ($u) and check if it is valid
 254                 $name = trim( $this->mName );
 255                 $u = User::newFromName( $name, 'creatable' );
 256                 if ( is_null( $u ) ) {
 257                         $this->mainLoginForm( wfMsg( 'noname' ) );
 258                         return false;
 259                 }
 260
 261                 if ( 0 != $u->idForName() ) {
 262                         $this->mainLoginForm( wfMsg( 'userexists' ) );
 263                         return false;
 264                 }
 265
 266                 if ( 0 != strcmp( $this->mPassword, $this->mRetype ) ) {
 267                         $this->mainLoginForm( wfMsg( 'badretype' ) );
 268                         return false;
 269                 }
 270
 271                 # check for minimal password length
 272                 if ( !$u->isValidPassword( $this->mPassword ) ) {
 273                         if ( !$this->mCreateaccountMail ) {
 274                                 $this->mainLoginForm( wfMsgExt( 'passwordtooshort', array( 'parsemag' ), $wgMinimalPasswordLength ) );
 275                                 return false;
 276                         } else {
 277                                 # do not force a password for account creation by email
 278                                 # set invalid password, it will be replaced later by a random generated password
 279                                 $this->mPassword = null;
 280                         }
 281                 }
 282
 283                 # if you need a confirmed email address to edit, then obviously you need an email address.
 284                 if ( $wgEmailConfirmToEdit && empty( $this->mEmail ) ) {
 285                         $this->mainLoginForm( wfMsg( 'noemailtitle' ) );
 286                         return false;
 287                 }
 288
 289                 if( !empty( $this->mEmail ) && !User::isValidEmailAddr( $this->mEmail ) ) {
 290                         $this->mainLoginForm( wfMsg( 'invalidemailaddress' ) );
 291                         return false;
 292                 }
 293
 294                 # Set some additional data so the AbortNewAccount hook can be
 295                 # used for more than just username validation
 296                 $u->setEmail( $this->mEmail );
 297                 $u->setRealName( $this->mRealName );
 298
 299                 $abortError = '';
 300                 if( !wfRunHooks( 'AbortNewAccount', array( $u, &$abortError ) ) ) {
 301                         // Hook point to add extra creation throttles and blocks
 302                         wfDebug( "LoginForm::addNewAccountInternal: a hook blocked creation\n" );
 303                         $this->mainLoginForm( $abortError );
 304                         return false;
 305                 }
 306
 307                 if ( $wgAccountCreationThrottle && $wgUser->isPingLimitable() ) {
 308                         $key = wfMemcKey( 'acctcreate', 'ip', $ip );
 309                         $value = $wgMemc->incr( $key );
 310                         if ( !$value ) {
 311                                 $wgMemc->set( $key, 1, 86400 );
 312                         }
 313                         if ( $value > $wgAccountCreationThrottle ) {
 314                                 $this->throttleHit( $wgAccountCreationThrottle );
 315                                 return false;
 316                         }
 317                 }
 318
 319                 if( !$wgAuth->addUser( $u, $this->mPassword, $this->mEmail, $this->mRealName ) ) {
 320                         $this->mainLoginForm( wfMsg( 'externaldberror' ) );
 321                         return false;
 322                 }
 323
 324                 return $this->initUser( $u, false );
 325         }
 326
 327         /**
 328          * Actually add a user to the database.
 329          * Give it a User object that has been initialised with a name.
 330          *
 331          * @param $u User object.
 332          * @param $autocreate boolean -- true if this is an autocreation via auth plugin
 333          * @return User object.
 334          * @private
 335          */
 336         function initUser( $u, $autocreate ) {
 337                 global $wgAuth;
 338
 339                 $u->addToDatabase();
 340
 341                 if ( $wgAuth->allowPasswordChange() ) {
 342                         $u->setPassword( $this->mPassword );
 343                 }
 344
 345                 $u->setEmail( $this->mEmail );
 346                 $u->setRealName( $this->mRealName );
 347                 $u->setToken();
 348
 349                 $wgAuth->initUser( $u, $autocreate );
 350
 351                 $u->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 352                 $u->saveSettings();
 353
 354                 # Update user count
 355                 $ssUpdate = new SiteStatsUpdate( 0, 0, 0, 0, 1 );
 356                 $ssUpdate->doUpdate();
 357
 358                 return $u;
 359         }
 360
 361         /**
 362          * Internally authenticate the login request.
 363          *
 364          * This may create a local account as a side effect if the
 365          * authentication plugin allows transparent local account
 366          * creation.
 367          *
 368          * @public
 369          */
 370         function authenticateUserData() {
 371                 global $wgUser, $wgAuth;
 372                 if ( '' == $this->mName ) {
 373                         return self::NO_NAME;
 374                 }
 375
 376                 // Load $wgUser now, and check to see if we're logging in as the same name.
 377                 // This is necessary because loading $wgUser (say by calling getName()) calls
 378                 // the UserLoadFromSession hook, which potentially creates the user in the
 379                 // database. Until we load $wgUser, checking for user existence using
 380                 // User::newFromName($name)->getId() below will effectively be using stale data.
 381                 if ( $wgUser->getName() === $this->mName ) {
 382                         wfDebug( __METHOD__.": already logged in as {$this->mName}\n" );
 383                         return self::SUCCESS;
 384                 }
 385                 $u = User::newFromName( $this->mName );
 386                 if( is_null( $u ) || !User::isUsableName( $u->getName() ) ) {
 387                         return self::ILLEGAL;
 388                 }
 389
 390                 $isAutoCreated = false;
 391                 if ( 0 == $u->getID() ) {
 392                         $status = $this->attemptAutoCreate( $u );
 393                         if ( $status !== self::SUCCESS ) {
 394                                 return $status;
 395                         } else {
 396                                 $isAutoCreated = true;
 397                         }
 398                 } else {
 399                         $u->load();
 400                 }
 401
 402                 // Give general extensions, such as a captcha, a chance to abort logins
 403                 $abort = self::ABORTED;
 404                 if( !wfRunHooks( 'AbortLogin', array( $u, $this->mPassword, &$abort ) ) ) {
 405                         return $abort;
 406                 }
 407
 408                 if (!$u->checkPassword( $this->mPassword )) {
 409                         if( $u->checkTemporaryPassword( $this->mPassword ) ) {
 410                                 // The e-mailed temporary password should not be used
 411                                 // for actual logins; that's a very sloppy habit,
 412                                 // and insecure if an attacker has a few seconds to
 413                                 // click "search" on someone's open mail reader.
 414                                 //
 415                                 // Allow it to be used only to reset the password
 416                                 // a single time to a new value, which won't be in
 417                                 // the user's e-mail archives.
 418                                 //
 419                                 // For backwards compatibility, we'll still recognize
 420                                 // it at the login form to minimize surprises for
 421                                 // people who have been logging in with a temporary
 422                                 // password for some time.
 423                                 //
 424                                 // As a side-effect, we can authenticate the user's
 425                                 // e-mail address if it's not already done, since
 426                                 // the temporary password was sent via e-mail.
 427                                 //
 428                                 if( !$u->isEmailConfirmed() ) {
 429                                         $u->confirmEmail();
 430                                         $u->saveSettings();
 431                                 }
 432
 433                                 // At this point we just return an appropriate code
 434                                 // indicating that the UI should show a password
 435                                 // reset form; bot interfaces etc will probably just
 436                                 // fail cleanly here.
 437                                 //
 438                                 $retval = self::RESET_PASS;
 439                         } else {
 440                                 $retval = '' == $this->mPassword ? self::EMPTY_PASS : self::WRONG_PASS;
 441                         }
 442                 } else {
 443                         $wgAuth->updateUser( $u );
 444                         $wgUser = $u;
 445
 446                         if ( $isAutoCreated ) {
 447                                 // Must be run after $wgUser is set, for correct new user log
 448                                 wfRunHooks( 'AuthPluginAutoCreate', array( $wgUser ) );
 449                         }
 450
 451                         $retval = self::SUCCESS;
 452                 }
 453                 wfRunHooks( 'LoginAuthenticateAudit', array( $u, $this->mPassword, $retval ) );
 454                 return $retval;
 455         }
 456
 457         /**
 458          * Attempt to automatically create a user on login.
 459          * Only succeeds if there is an external authentication method which allows it.
 460          * @return integer Status code
 461          */
 462         function attemptAutoCreate( $user ) {
 463                 global $wgAuth, $wgUser;
 464                 /**
 465                  * If the external authentication plugin allows it,
 466                  * automatically create a new account for users that
 467                  * are externally defined but have not yet logged in.
 468                  */
 469                 if ( !$wgAuth->autoCreate() ) {
 470                         return self::NOT_EXISTS;
 471                 }
 472                 if ( !$wgAuth->userExists( $user->getName() ) ) {
 473                         wfDebug( __METHOD__.": user does not exist\n" );
 474                         return self::NOT_EXISTS;
 475                 }
 476                 if ( !$wgAuth->authenticate( $user->getName(), $this->mPassword ) ) {
 477                         wfDebug( __METHOD__.": \$wgAuth->authenticate() returned false, aborting\n" );
 478                         return self::WRONG_PLUGIN_PASS;
 479                 }
 480                 if ( $wgUser->isBlockedFromCreateAccount() ) {
 481                         wfDebug( __METHOD__.": user is blocked from account creation\n" );
 482                         return self::CREATE_BLOCKED;
 483                 }
 484
 485                 wfDebug( __METHOD__.": creating account\n" );
 486                 $user = $this->initUser( $user, true );
 487                 return self::SUCCESS;
 488         }
 489
 490         function processLogin() {
 491                 global $wgUser, $wgAuth;
 492
 493                 switch ($this->authenticateUserData())
 494                 {
 495                         case self::SUCCESS:
 496                                 # We've verified now, update the real record
 497                                 if( (bool)$this->mRemember != (bool)$wgUser->getOption( 'rememberpassword' ) ) {
 498                                         $wgUser->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 499                                         $wgUser->saveSettings();
 500                                 } else {
 501                                         $wgUser->invalidateCache();
 502                                 }
 503                                 $wgUser->setCookies();
 504
 505                                 if( $this->hasSessionCookie() || $this->mSkipCookieCheck ) {
 506                                         /* Replace the language object to provide user interface in correct
 507                                          * language immediately on this first page load.
 508                                          */
 509                                         global $wgLang, $wgRequest;
 510                                         $code = $wgRequest->getVal( 'uselang', $wgUser->getOption( 'language' ) );
 511                                         $wgLang = Language::factory( $code );
 512                                         return $this->successfulLogin( wfMsg( 'loginsuccess', $wgUser->getName() ) );
 513                                 } else {
 514                                         return $this->cookieRedirectCheck( 'login' );
 515                                 }
 516                                 break;
 517
 518                         case self::NO_NAME:
 519                         case self::ILLEGAL:
 520                                 $this->mainLoginForm( wfMsg( 'noname' ) );
 521                                 break;
 522                         case self::WRONG_PLUGIN_PASS:
 523                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 524                                 break;
 525                         case self::NOT_EXISTS:
 526                                 if( $wgUser->isAllowed( 'createaccount' ) ){
 527                                         $this->mainLoginForm( wfMsg( 'nosuchuser', htmlspecialchars( $this->mName ) ) );
 528                                 } else {
 529                                         $this->mainLoginForm( wfMsg( 'nosuchusershort', htmlspecialchars( $this->mName ) ) );
 530                                 }
 531                                 break;
 532                         case self::WRONG_PASS:
 533                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 534                                 break;
 535                         case self::EMPTY_PASS:
 536                                 $this->mainLoginForm( wfMsg( 'wrongpasswordempty' ) );
 537                                 break;
 538                         case self::RESET_PASS:
 539                                 $this->resetLoginForm( wfMsg( 'resetpass_announce' ) );
 540                                 break;
 541                         case self::CREATE_BLOCKED:
 542                                 $this->userBlockedMessage();
 543                                 break;
 544                         default:
 545                                 throw new MWException( "Unhandled case value" );
 546                 }
 547         }
 548
 549         function resetLoginForm( $error ) {
 550                 global $wgOut;
 551                 $wgOut->addWikiText( "<div class=\"errorbox\">$error</div>" );
 552                 $reset = new PasswordResetForm( $this->mName, $this->mPassword );
 553                 $reset->execute( null );
 554         }
 555
 556         /**
 557          * @private
 558          */
 559         function mailPassword() {
 560                 global $wgUser, $wgOut, $wgAuth;
 561
 562                 if( !$wgAuth->allowPasswordChange() ) {
 563                         $this->mainLoginForm( wfMsg( 'resetpass_forbidden' ) );
 564                         return;
 565                 }
 566
 567                 # Check against blocked IPs
 568                 # fixme -- should we not?
 569                 if( $wgUser->isBlocked() ) {
 570                         $this->mainLoginForm( wfMsg( 'blocked-mailpassword' ) );
 571                         return;
 572                 }
 573
 574                 # Check against the rate limiter
 575                 if( $wgUser->pingLimiter( 'mailpassword' ) ) {
 576                         $wgOut->rateLimited();
 577                         return;
 578                 }
 579
 580                 if ( '' == $this->mName ) {
 581                         $this->mainLoginForm( wfMsg( 'noname' ) );
 582                         return;
 583                 }
 584                 $u = User::newFromName( $this->mName );
 585                 if( is_null( $u ) ) {
 586                         $this->mainLoginForm( wfMsg( 'noname' ) );
 587                         return;
 588                 }
 589                 if ( 0 == $u->getID() ) {
 590                         $this->mainLoginForm( wfMsg( 'nosuchuser', $u->getName() ) );
 591                         return;
 592                 }
 593
 594                 # Check against password throttle
 595                 if ( $u->isPasswordReminderThrottled() ) {
 596                         global $wgPasswordReminderResendTime;
 597                         # Round the time in hours to 3 d.p., in case someone is specifying minutes or seconds.
 598                         $this->mainLoginForm( wfMsgExt( 'throttled-mailpassword', array( 'parsemag' ),
 599                                 round( $wgPasswordReminderResendTime, 3 ) ) );
 600                         return;
 601                 }
 602
 603                 $result = $this->mailPasswordInternal( $u, true, 'passwordremindertitle', 'passwordremindertext' );
 604                 if( WikiError::isError( $result ) ) {
 605                         $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
 606                 } else {
 607                         $this->mainLoginForm( wfMsg( 'passwordsent', $u->getName() ), 'success' );
 608                 }
 609         }
 610
 611
 612         /**
 613          * @param object user
 614          * @param bool throttle
 615          * @param string message name of email title
 616          * @param string message name of email text
 617          * @return mixed true on success, WikiError on failure
 618          * @private
 619          */
 620         function mailPasswordInternal( $u, $throttle = true, $emailTitle = 'passwordremindertitle', $emailText = 'passwordremindertext' ) {
 621                 global $wgCookiePath, $wgCookieDomain, $wgCookiePrefix, $wgCookieSecure;
 622                 global $wgServer, $wgScript;
 623
 624                 if ( '' == $u->getEmail() ) {
 625                         return new WikiError( wfMsg( 'noemail', $u->getName() ) );
 626                 }
 627
 628                 $np = $u->randomPassword();
 629                 $u->setNewpassword( $np, $throttle );
 630                 $u->saveSettings();
 631
 632                 $ip = wfGetIP();
 633                 if ( '' == $ip ) { $ip = '(Unknown)'; }
 634
 635                 $m = wfMsg( $emailText, $ip, $u->getName(), $np, $wgServer . $wgScript );
 636                 $result = $u->sendMail( wfMsg( $emailTitle ), $m );
 637
 638                 return $result;
 639         }
 640
 641
 642         /**
 643          * @param string $msg Message that will be shown on success
 644          * @param bool $auto Toggle auto-redirect to main page; default true
 645          * @private
 646          */
 647         function successfulLogin( $msg, $auto = true ) {
 648                 global $wgUser;
 649                 global $wgOut;
 650
 651                 # Run any hooks; ignore results
 652
 653                 $injected_html = '';
 654                 wfRunHooks('UserLoginComplete', array(&$wgUser, &$injected_html));
 655
 656                 $wgOut->setPageTitle( wfMsg( 'loginsuccesstitle' ) );
 657                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 658                 $wgOut->setArticleRelated( false );
 659                 $wgOut->addWikiText( $msg );
 660                 $wgOut->addHtml( $injected_html );
 661                 if ( !empty( $this->mReturnTo ) ) {
 662                         $wgOut->returnToMain( $auto, $this->mReturnTo );
 663                 } else {
 664                         $wgOut->returnToMain( $auto );
 665                 }
 666         }
 667
 668         /** */
 669         function userNotPrivilegedMessage($errors) {
 670                 global $wgOut;
 671
 672                 $wgOut->setPageTitle( wfMsg( 'permissionserrors' ) );
 673                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 674                 $wgOut->setArticleRelated( false );
 675
 676                 $wgOut->addWikitext( $wgOut->formatPermissionsErrorMessage( $errors, 'createaccount' ) );
 677                 // Stuff that might want to be added at the end. For example, instructions if blocked.
 678                 $wgOut->addWikiMsg( 'cantcreateaccount-nonblock-text' );
 679
 680                 $wgOut->returnToMain( false );
 681         }
 682
 683         /** */
 684         function userBlockedMessage() {
 685                 global $wgOut, $wgUser;
 686
 687                 # Let's be nice about this, it's likely that this feature will be used
 688                 # for blocking large numbers of innocent people, e.g. range blocks on
 689                 # schools. Don't blame it on the user. There's a small chance that it
 690                 # really is the user's fault, i.e. the username is blocked and they
 691                 # haven't bothered to log out before trying to create an account to
 692                 # evade it, but we'll leave that to their guilty conscience to figure
 693                 # out.
 694
 695                 $wgOut->setPageTitle( wfMsg( 'cantcreateaccounttitle' ) );
 696                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 697                 $wgOut->setArticleRelated( false );
 698
 699                 $ip = wfGetIP();
 700                 $blocker = User::whoIs( $wgUser->mBlock->mBy );
 701                 $block_reason = $wgUser->mBlock->mReason;
 702
 703                 if ( strval( $block_reason ) === '' ) {
 704                         $block_reason = wfMsg( 'blockednoreason' );
 705                 }
 706                 $wgOut->addWikiMsg( 'cantcreateaccount-text', $ip, $block_reason, $blocker );
 707                 $wgOut->returnToMain( false );
 708         }
 709
 710         /**
 711          * @private
 712          */
 713         function mainLoginForm( $msg, $msgtype = 'error' ) {
 714                 global $wgUser, $wgOut, $wgAllowRealName, $wgEnableEmail;
 715                 global $wgCookiePrefix, $wgAuth, $wgLoginLanguageSelector;
 716                 global $wgAuth, $wgEmailConfirmToEdit;
 717
 718                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 719
 720                 if ( $this->mType == 'signup' ) {
 721                         // Block signup here if in readonly. Keeps user from
 722                         // going through the process (filling out data, etc)
 723                         // and being informed later.
 724                         if ( wfReadOnly() ) {
 725                                 $wgOut->readOnlyPage();
 726                                 return;
 727                         } elseif ( $wgUser->isBlockedFromCreateAccount() ) {
 728                                 $this->userBlockedMessage();
 729                                 return;
 730                         } elseif ( count( $permErrors = $titleObj->getUserPermissionsErrors( 'createaccount', $wgUser, true ) )>0 ) {
 731                                 $wgOut->showPermissionsErrorPage( $permErrors, 'createaccount' );
 732                                 return;
 733                         }
 734                 }
 735
 736                 if ( '' == $this->mName ) {
 737                         if ( $wgUser->isLoggedIn() ) {
 738                                 $this->mName = $wgUser->getName();
 739                         } else {
 740                                 $this->mName = isset( $_COOKIE[$wgCookiePrefix.'UserName'] ) ? $_COOKIE[$wgCookiePrefix.'UserName'] : null;
 741                         }
 742                 }
 743
 744                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 745
 746                 if ( $this->mType == 'signup' ) {
 747                         $template = new UsercreateTemplate();
 748                         $q = 'action=submitlogin&type=signup';
 749                         $linkq = 'type=login';
 750                         $linkmsg = 'gotaccount';
 751                 } else {
 752                         $template = new UserloginTemplate();
 753                         $q = 'action=submitlogin&type=login';
 754                         $linkq = 'type=signup';
 755                         $linkmsg = 'nologin';
 756                 }
 757
 758                 if ( !empty( $this->mReturnTo ) ) {
 759                         $returnto = '&returnto=' . wfUrlencode( $this->mReturnTo );
 760                         $q .= $returnto;
 761                         $linkq .= $returnto;
 762                 }
 763
 764                 # Pass any language selection on to the mode switch link
 765                 if( $wgLoginLanguageSelector && $this->mLanguage )
 766                         $linkq .= '&uselang=' . $this->mLanguage;
 767
 768                 $link = '<a href="' . htmlspecialchars ( $titleObj->getLocalUrl( $linkq ) ) . '">';
 769                 $link .= wfMsgHtml( $linkmsg . 'link' ); # Calling either 'gotaccountlink' or 'nologinlink'
 770                 $link .= '</a>';
 771
 772                 # Don't show a "create account" link if the user can't
 773                 if( $this->showCreateOrLoginLink( $wgUser ) )
 774                         $template->set( 'link', wfMsgHtml( $linkmsg, $link ) );
 775                 else
 776                         $template->set( 'link', '' );
 777
 778                 $template->set( 'header', '' );
 779                 $template->set( 'name', $this->mName );
 780                 $template->set( 'password', $this->mPassword );
 781                 $template->set( 'retype', $this->mRetype );
 782                 $template->set( 'email', $this->mEmail );
 783                 $template->set( 'realname', $this->mRealName );
 784                 $template->set( 'domain', $this->mDomain );
 785
 786                 $template->set( 'action', $titleObj->getLocalUrl( $q ) );
 787                 $template->set( 'message', $msg );
 788                 $template->set( 'messagetype', $msgtype );
 789                 $template->set( 'createemail', $wgEnableEmail && $wgUser->isLoggedIn() );
 790                 $template->set( 'userealname', $wgAllowRealName );
 791                 $template->set( 'useemail', $wgEnableEmail );
 792                 $template->set( 'emailrequired', $wgEmailConfirmToEdit );
 793                 $template->set( 'canreset', $wgAuth->allowPasswordChange() );
 794                 $template->set( 'remember', $wgUser->getOption( 'rememberpassword' ) or $this->mRemember  );
 795
 796                 # Prepare language selection links as needed
 797                 if( $wgLoginLanguageSelector ) {
 798                         $template->set( 'languages', $this->makeLanguageSelector() );
 799                         if( $this->mLanguage )
 800                                 $template->set( 'uselang', $this->mLanguage );
 801                 }
 802
 803                 // Give authentication and captcha plugins a chance to modify the form
 804                 $wgAuth->modifyUITemplate( $template );
 805                 if ( $this->mType == 'signup' ) {
 806                         wfRunHooks( 'UserCreateForm', array( &$template ) );
 807                 } else {
 808                         wfRunHooks( 'UserLoginForm', array( &$template ) );
 809                 }
 810
 811                 $wgOut->setPageTitle( wfMsg( 'userlogin' ) );
 812                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 813                 $wgOut->setArticleRelated( false );
 814                 $wgOut->disallowUserJs();  // just in case...
 815                 $wgOut->addTemplate( $template );
 816         }
 817
 818         /**
 819          * @private
 820          */
 821         function showCreateOrLoginLink( &$user ) {
 822                 if( $this->mType == 'signup' ) {
 823                         return( true );
 824                 } elseif( $user->isAllowed( 'createaccount' ) ) {
 825                         return( true );
 826                 } else {
 827                         return( false );
 828                 }
 829         }
 830
 831         /**
 832          * Check if a session cookie is present.
 833          *
 834          * This will not pick up a cookie set during _this_ request, but is
 835          * meant to ensure that the client is returning the cookie which was
 836          * set on a previous pass through the system.
 837          *
 838          * @private
 839          */
 840         function hasSessionCookie() {
 841                 global $wgDisableCookieCheck, $wgRequest;
 842                 return $wgDisableCookieCheck ? true : $wgRequest->checkSessionCookie();
 843         }
 844
 845         /**
 846          * @private
 847          */
 848         function cookieRedirectCheck( $type ) {
 849                 global $wgOut;
 850
 851                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 852                 $check = $titleObj->getFullURL( 'wpCookieCheck='.$type );
 853
 854                 return $wgOut->redirect( $check );
 855         }
 856
 857         /**
 858          * @private
 859          */
 860         function onCookieRedirectCheck( $type ) {
 861                 global $wgUser;
 862
 863                 if ( !$this->hasSessionCookie() ) {
 864                         if ( $type == 'new' ) {
 865                                 return $this->mainLoginForm( wfMsgExt( 'nocookiesnew', array( 'parseinline' ) ) );
 866                         } else if ( $type == 'login' ) {
 867                                 return $this->mainLoginForm( wfMsgExt( 'nocookieslogin', array( 'parseinline' ) ) );
 868                         } else {
 869                                 # shouldn't happen
 870                                 return $this->mainLoginForm( wfMsg( 'error' ) );
 871                         }
 872                 } else {
 873                         return $this->successfulLogin( wfMsgExt( 'loginsuccess', array( 'parseinline' ), $wgUser->getName() ) );
 874                 }
 875         }
 876
 877         /**
 878          * @private
 879          */
 880         function throttleHit( $limit ) {
 881                 global $wgOut;
 882
 883                 $wgOut->addWikiMsg( 'acct_creation_throttle_hit', $limit );
 884         }
 885
 886         /**
 887          * Produce a bar of links which allow the user to select another language
 888          * during login/registration but retain "returnto"
 889          *
 890          * @return string
 891          */
 892         function makeLanguageSelector() {
 893                 $msg = wfMsgForContent( 'loginlanguagelinks' );
 894                 if( $msg != '' && !wfEmptyMsg( 'loginlanguagelinks', $msg ) ) {
 895                         $langs = explode( "\n", $msg );
 896                         $links = array();
 897                         foreach( $langs as $lang ) {
 898                                 $lang = trim( $lang, '* ' );
 899                                 $parts = explode( '|', $lang );
 900                                 if (count($parts) >= 2) {
 901                                         $links[] = $this->makeLanguageSelectorLink( $parts[0], $parts[1] );
 902                                 }
 903                         }
 904                         return count( $links ) > 0 ? wfMsgHtml( 'loginlanguagelabel', implode( ' | ', $links ) ) : '';
 905                 } else {
 906                         return '';
 907                 }
 908         }
 909
 910         /**
 911          * Create a language selector link for a particular language
 912          * Links back to this page preserving type and returnto
 913          *
 914          * @param $text Link text
 915          * @param $lang Language code
 916          */
 917         function makeLanguageSelectorLink( $text, $lang ) {
 918                 global $wgUser;
 919                 $self = SpecialPage::getTitleFor( 'Userlogin' );
 920                 $attr[] = 'uselang=' . $lang;
 921                 if( $this->mType == 'signup' )
 922                         $attr[] = 'type=signup';
 923                 if( $this->mReturnTo )
 924                         $attr[] = 'returnto=' . $this->mReturnTo;
 925                 $skin = $wgUser->getSkin();
 926                 return $skin->makeKnownLinkObj( $self, htmlspecialchars( $text ), implode( '&', $attr ) );
 927         }
 928 }