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         const USER_BLOCKED = 11;
  38
  39         var $mName, $mPassword, $mRetype, $mReturnTo, $mCookieCheck, $mPosted;
  40         var $mAction, $mCreateaccount, $mCreateaccountMail, $mMailmypassword;
  41         var $mLoginattempt, $mRemember, $mEmail, $mDomain, $mLanguage;
  42         var $mSkipCookieCheck, $mReturnToQuery;
  43
  44         private $mExtUser = null;
  45
  46         /**
  47          * Constructor
  48          * @param WebRequest $request A WebRequest object passed by reference
  49          */
  50         function LoginForm( &$request, $par = '' ) {
  51                 global $wgAuth, $wgHiddenPrefs, $wgEnableEmail, $wgRedirectOnLogin;
  52
  53                 $this->mType = ( $par == 'signup' ) ? $par : $request->getText( 'type' ); # Check for [[Special:Userlogin/signup]]
  54                 $this->mName = $request->getText( 'wpName' );
  55                 $this->mPassword = $request->getText( 'wpPassword' );
  56                 $this->mRetype = $request->getText( 'wpRetype' );
  57                 $this->mDomain = $request->getText( 'wpDomain' );
  58                 $this->mReturnTo = $request->getVal( 'returnto' );
  59                 $this->mReturnToQuery = $request->getVal( 'returntoquery' );
  60                 $this->mCookieCheck = $request->getVal( 'wpCookieCheck' );
  61                 $this->mPosted = $request->wasPosted();
  62                 $this->mCreateaccount = $request->getCheck( 'wpCreateaccount' );
  63                 $this->mCreateaccountMail = $request->getCheck( 'wpCreateaccountMail' )
  64                                             && $wgEnableEmail;
  65                 $this->mMailmypassword = $request->getCheck( 'wpMailmypassword' )
  66                                          && $wgEnableEmail;
  67                 $this->mLoginattempt = $request->getCheck( 'wpLoginattempt' );
  68                 $this->mAction = $request->getVal( 'action' );
  69                 $this->mRemember = $request->getCheck( 'wpRemember' );
  70                 $this->mLanguage = $request->getText( 'uselang' );
  71                 $this->mSkipCookieCheck = $request->getCheck( 'wpSkipCookieCheck' );
  72
  73                 if ( $wgRedirectOnLogin ) {
  74                         $this->mReturnTo = $wgRedirectOnLogin;
  75                         $this->mReturnToQuery = '';
  76                 }
  77
  78                 if( $wgEnableEmail ) {
  79                         $this->mEmail = $request->getText( 'wpEmail' );
  80                 } else {
  81                         $this->mEmail = '';
  82                 }
  83                 if( !in_array( 'realname', $wgHiddenPrefs ) ) {
  84                     $this->mRealName = $request->getText( 'wpRealName' );
  85                 } else {
  86                     $this->mRealName = '';
  87                 }
  88
  89                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
  90                         $this->mDomain = 'invaliddomain';
  91                 }
  92                 $wgAuth->setDomain( $this->mDomain );
  93
  94                 # When switching accounts, it sucks to get automatically logged out
  95                 $returnToTitle = Title::newFromText( $this->mReturnTo );
  96                 if( is_object( $returnToTitle ) && $returnToTitle->isSpecial( 'Userlogout' ) ) {
  97                         $this->mReturnTo = '';
  98                         $this->mReturnToQuery = '';
  99                 }
 100         }
 101
 102         function execute() {
 103                 if ( !is_null( $this->mCookieCheck ) ) {
 104                         $this->onCookieRedirectCheck( $this->mCookieCheck );
 105                         return;
 106                 } else if( $this->mPosted ) {
 107                         if( $this->mCreateaccount ) {
 108                                 return $this->addNewAccount();
 109                         } else if ( $this->mCreateaccountMail ) {
 110                                 return $this->addNewAccountMailPassword();
 111                         } else if ( $this->mMailmypassword ) {
 112                                 return $this->mailPassword();
 113                         } else if ( ( 'submitlogin' == $this->mAction ) || $this->mLoginattempt ) {
 114                                 return $this->processLogin();
 115                         }
 116                 }
 117                 $this->mainLoginForm( '' );
 118         }
 119
 120         /**
 121          * @private
 122          */
 123         function addNewAccountMailPassword() {
 124                 global $wgOut;
 125
 126                 if ( $this->mEmail == '' ) {
 127                         $this->mainLoginForm( wfMsg( 'noemail', htmlspecialchars( $this->mName ) ) );
 128                         return;
 129                 }
 130
 131                 $u = $this->addNewaccountInternal();
 132
 133                 if ($u == null) {
 134                         return;
 135                 }
 136
 137                 // Wipe the initial password and mail a temporary one
 138                 $u->setPassword( null );
 139                 $u->saveSettings();
 140                 $result = $this->mailPasswordInternal( $u, false, 'createaccount-title', 'createaccount-text' );
 141
 142                 wfRunHooks( 'AddNewAccount', array( $u, true ) );
 143                 $u->addNewUserLogEntry();
 144
 145                 $wgOut->setPageTitle( wfMsg( 'accmailtitle' ) );
 146                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 147                 $wgOut->setArticleRelated( false );
 148
 149                 if( WikiError::isError( $result ) ) {
 150                         $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
 151                 } else {
 152                         $wgOut->addWikiMsg( 'accmailtext', $u->getName(), $u->getEmail() );
 153                         $wgOut->returnToMain( false );
 154                 }
 155                 $u = 0;
 156         }
 157
 158
 159         /**
 160          * @private
 161          */
 162         function addNewAccount() {
 163                 global $wgUser, $wgEmailAuthentication;
 164
 165                 # Create the account and abort if there's a problem doing so
 166                 $u = $this->addNewAccountInternal();
 167                 if( $u == null )
 168                         return;
 169
 170                 # If we showed up language selection links, and one was in use, be
 171                 # smart (and sensible) and save that language as the user's preference
 172                 global $wgLoginLanguageSelector;
 173                 if( $wgLoginLanguageSelector && $this->mLanguage )
 174                         $u->setOption( 'language', $this->mLanguage );
 175
 176                 # Send out an email authentication message if needed
 177                 if( $wgEmailAuthentication && User::isValidEmailAddr( $u->getEmail() ) ) {
 178                         global $wgOut;
 179                         $error = $u->sendConfirmationMail();
 180                         if( WikiError::isError( $error ) ) {
 181                                 $wgOut->addWikiMsg( 'confirmemail_sendfailed', $error->getMessage() );
 182                         } else {
 183                                 $wgOut->addWikiMsg( 'confirmemail_oncreate' );
 184                         }
 185                 }
 186
 187                 # Save settings (including confirmation token)
 188                 $u->saveSettings();
 189
 190                 # If not logged in, assume the new account as the current one and set
 191                 # session cookies then show a "welcome" message or a "need cookies"
 192                 # message as needed
 193                 if( $wgUser->isAnon() ) {
 194                         $wgUser = $u;
 195                         $wgUser->setCookies();
 196                         wfRunHooks( 'AddNewAccount', array( $wgUser, false ) );
 197                         $wgUser->addNewUserLogEntry();
 198                         if( $this->hasSessionCookie() ) {
 199                                 return $this->successfulCreation();
 200                         } else {
 201                                 return $this->cookieRedirectCheck( 'new' );
 202                         }
 203                 } else {
 204                         # Confirm that the account was created
 205                         global $wgOut;
 206                         $self = SpecialPage::getTitleFor( 'Userlogin' );
 207                         $wgOut->setPageTitle( wfMsgHtml( 'accountcreated' ) );
 208                         $wgOut->setArticleRelated( false );
 209                         $wgOut->setRobotPolicy( 'noindex,nofollow' );
 210                         $wgOut->addHTML( wfMsgWikiHtml( 'accountcreatedtext', $u->getName() ) );
 211                         $wgOut->returnToMain( false, $self );
 212                         wfRunHooks( 'AddNewAccount', array( $u, false ) );
 213                         $u->addNewUserLogEntry();
 214                         return true;
 215                 }
 216         }
 217
 218         /**
 219          * @private
 220          */
 221         function addNewAccountInternal() {
 222                 global $wgUser, $wgOut;
 223                 global $wgMemc, $wgAccountCreationThrottle;
 224                 global $wgAuth, $wgMinimalPasswordLength;
 225                 global $wgEmailConfirmToEdit;
 226
 227                 // If the user passes an invalid domain, something is fishy
 228                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
 229                         $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 230                         return false;
 231                 }
 232
 233                 // If we are not allowing users to login locally, we should be checking
 234                 // to see if the user is actually able to authenticate to the authenti-
 235                 // cation server before they create an account (otherwise, they can
 236                 // create a local account and login as any domain user). We only need
 237                 // to check this for domains that aren't local.
 238                 if( 'local' != $this->mDomain && $this->mDomain != '' ) {
 239                         if( !$wgAuth->canCreateAccounts() && ( !$wgAuth->userExists( $this->mName ) || !$wgAuth->authenticate( $this->mName, $this->mPassword ) ) ) {
 240                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 241                                 return false;
 242                         }
 243                 }
 244
 245                 if ( wfReadOnly() ) {
 246                         $wgOut->readOnlyPage();
 247                         return false;
 248                 }
 249
 250                 # Check permissions
 251                 if ( !$wgUser->isAllowed( 'createaccount' ) ) {
 252                         $this->userNotPrivilegedMessage();
 253                         return false;
 254                 } elseif ( $wgUser->isBlockedFromCreateAccount() ) {
 255                         $this->userBlockedMessage();
 256                         return false;
 257                 }
 258
 259                 $ip = wfGetIP();
 260                 if ( $wgUser->isDnsBlacklisted( $ip, true /* check $wgProxyWhitelist */ ) ) {
 261                         $this->mainLoginForm( wfMsg( 'sorbs_create_account_reason' ) . ' (' . htmlspecialchars( $ip ) . ')' );
 262                         return;
 263                 }
 264
 265                 # Now create a dummy user ($u) and check if it is valid
 266                 $name = trim( $this->mName );
 267                 $u = User::newFromName( $name, 'creatable' );
 268                 if ( WikiError::isError( $u ) ) {
 269                         $this->mainLoginForm( wfMsg( $u->getMessage() ) );
 270                         return false;
 271                 }
 272
 273                 if ( !is_object( $u ) ) {
 274                         $this->mainLoginForm( wfMsg( 'noname' ) );
 275                         return false;
 276                 }
 277
 278                 if ( 0 != $u->idForName() ) {
 279                         $this->mainLoginForm( wfMsg( 'userexists' ) );
 280                         return false;
 281                 }
 282
 283                 if ( 0 != strcmp( $this->mPassword, $this->mRetype ) ) {
 284                         $this->mainLoginForm( wfMsg( 'badretype' ) );
 285                         return false;
 286                 }
 287
 288                 # check for minimal password length
 289                 $valid = $u->getPasswordValidity( $this->mPassword );
 290                 if ( $valid !== true ) {
 291                         if ( !$this->mCreateaccountMail ) {
 292                                 $this->mainLoginForm( wfMsgExt( $valid, array( 'parsemag' ), $wgMinimalPasswordLength ) );
 293                                 return false;
 294                         } else {
 295                                 # do not force a password for account creation by email
 296                                 # set invalid password, it will be replaced later by a random generated password
 297                                 $this->mPassword = null;
 298                         }
 299                 }
 300
 301                 # if you need a confirmed email address to edit, then obviously you
 302                 # need an email address.
 303                 if ( $wgEmailConfirmToEdit && empty( $this->mEmail ) ) {
 304                         $this->mainLoginForm( wfMsg( 'noemailtitle' ) );
 305                         return false;
 306                 }
 307
 308                 if( !empty( $this->mEmail ) && !User::isValidEmailAddr( $this->mEmail ) ) {
 309                         $this->mainLoginForm( wfMsg( 'invalidemailaddress' ) );
 310                         return false;
 311                 }
 312
 313                 # Set some additional data so the AbortNewAccount hook can be used for
 314                 # more than just username validation
 315                 $u->setEmail( $this->mEmail );
 316                 $u->setRealName( $this->mRealName );
 317
 318                 $abortError = '';
 319                 if( !wfRunHooks( 'AbortNewAccount', array( $u, &$abortError ) ) ) {
 320                         // Hook point to add extra creation throttles and blocks
 321                         wfDebug( "LoginForm::addNewAccountInternal: a hook blocked creation\n" );
 322                         $this->mainLoginForm( $abortError );
 323                         return false;
 324                 }
 325
 326                 if ( $wgAccountCreationThrottle && $wgUser->isPingLimitable() ) {
 327                         $key = wfMemcKey( 'acctcreate', 'ip', $ip );
 328                         $value = $wgMemc->get( $key );
 329                         if ( !$value ) {
 330                                 $wgMemc->set( $key, 0, 86400 );
 331                         }
 332                         if ( $value >= $wgAccountCreationThrottle ) {
 333                                 $this->throttleHit( $wgAccountCreationThrottle );
 334                                 return false;
 335                         }
 336                         $wgMemc->incr( $key );
 337                 }
 338
 339                 if( !$wgAuth->addUser( $u, $this->mPassword, $this->mEmail, $this->mRealName ) ) {
 340                         $this->mainLoginForm( wfMsg( 'externaldberror' ) );
 341                         return false;
 342                 }
 343
 344                 return $this->initUser( $u, false );
 345         }
 346
 347         /**
 348          * Actually add a user to the database.
 349          * Give it a User object that has been initialised with a name.
 350          *
 351          * @param $u User object.
 352          * @param $autocreate boolean -- true if this is an autocreation via auth plugin
 353          * @return User object.
 354          * @private
 355          */
 356         function initUser( $u, $autocreate ) {
 357                 global $wgAuth;
 358
 359                 $u->addToDatabase();
 360
 361                 if ( $wgAuth->allowPasswordChange() ) {
 362                         $u->setPassword( $this->mPassword );
 363                 }
 364
 365                 $u->setEmail( $this->mEmail );
 366                 $u->setRealName( $this->mRealName );
 367                 $u->setToken();
 368
 369                 $wgAuth->initUser( $u, $autocreate );
 370
 371                 if ( $this->mExtUser ) {
 372                         $this->mExtUser->linkToLocal( $u->getId() );
 373                         $email = $this->mExtUser->getPref( 'emailaddress' );
 374                         if ( $email && !$this->mEmail ) {
 375                                 $u->setEmail( $email );
 376                         }
 377                 }
 378
 379                 $u->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 380                 $u->saveSettings();
 381
 382                 # Update user count
 383                 $ssUpdate = new SiteStatsUpdate( 0, 0, 0, 0, 1 );
 384                 $ssUpdate->doUpdate();
 385
 386                 return $u;
 387         }
 388
 389         /**
 390          * Internally authenticate the login request.
 391          *
 392          * This may create a local account as a side effect if the
 393          * authentication plugin allows transparent local account
 394          * creation.
 395          */
 396         public function authenticateUserData() {
 397                 global $wgUser, $wgAuth;
 398                 if ( $this->mName == '' ) {
 399                         return self::NO_NAME;
 400                 }
 401
 402                 global $wgPasswordAttemptThrottle;
 403
 404                 $throttleCount = 0;
 405                 if ( is_array( $wgPasswordAttemptThrottle ) ) {
 406                         $throttleKey = wfMemcKey( 'password-throttle', wfGetIP(), md5( $this->mName ) );
 407                         $count = $wgPasswordAttemptThrottle['count'];
 408                         $period = $wgPasswordAttemptThrottle['seconds'];
 409
 410                         global $wgMemc;
 411                         $throttleCount = $wgMemc->get( $throttleKey );
 412                         if ( !$throttleCount ) {
 413                                 $wgMemc->add( $throttleKey, 1, $period ); // start counter
 414                         } else if ( $throttleCount < $count ) {
 415                                 $wgMemc->incr($throttleKey);
 416                         } else if ( $throttleCount >= $count ) {
 417                                 return self::THROTTLED;
 418                         }
 419                 }
 420
 421                 // Load $wgUser now, and check to see if we're logging in as the same
 422                 // name. This is necessary because loading $wgUser (say by calling
 423                 // getName()) calls the UserLoadFromSession hook, which potentially
 424                 // creates the user in the database. Until we load $wgUser, checking
 425                 // for user existence using User::newFromName($name)->getId() below
 426                 // will effectively be using stale data.
 427                 if ( $wgUser->getName() === $this->mName ) {
 428                         wfDebug( __METHOD__.": already logged in as {$this->mName}\n" );
 429                         return self::SUCCESS;
 430                 }
 431
 432                 $this->mExtUser = ExternalUser::newFromName( $this->mName );
 433
 434                 # TODO: Allow some magic here for invalid external names, e.g., let the
 435                 # user choose a different wiki name.
 436                 $u = User::newFromName( $this->mName );
 437                 if( is_null( $u ) || !User::isUsableName( $u->getName() ) ) {
 438                         return self::ILLEGAL;
 439                 }
 440
 441                 $isAutoCreated = false;
 442                 if ( 0 == $u->getID() ) {
 443                         $status = $this->attemptAutoCreate( $u );
 444                         if ( $status !== self::SUCCESS ) {
 445                                 return $status;
 446                         } else {
 447                                 $isAutoCreated = true;
 448                         }
 449                 } else {
 450                         global $wgExternalAuthType, $wgAutocreatePolicy;
 451                         if ( $wgExternalAuthType && $wgAutocreatePolicy != 'never'
 452                         && is_object( $this->mExtUser )
 453                         && $this->mExtUser->authenticate( $this->mPassword ) ) {
 454                                 # The external user and local user have the same name and
 455                                 # password, so we assume they're the same.
 456                                 $this->mExtUser->linkToLocal( $u->getID() );
 457                         }
 458
 459                         $u->load();
 460                 }
 461
 462                 // Give general extensions, such as a captcha, a chance to abort logins
 463                 $abort = self::ABORTED;
 464                 if( !wfRunHooks( 'AbortLogin', array( $u, $this->mPassword, &$abort ) ) ) {
 465                         return $abort;
 466                 }
 467
 468                 if (!$u->checkPassword( $this->mPassword )) {
 469                         if( $u->checkTemporaryPassword( $this->mPassword ) ) {
 470                                 // The e-mailed temporary password should not be used for actu-
 471                                 // al logins; that's a very sloppy habit, and insecure if an
 472                                 // attacker has a few seconds to click "search" on someone's o-
 473                                 // pen mail reader.
 474                                 //
 475                                 // Allow it to be used only to reset the password a single time
 476                                 // to a new value, which won't be in the user's e-mail ar-
 477                                 // chives.
 478                                 //
 479                                 // For backwards compatibility, we'll still recognize it at the
 480                                 // login form to minimize surprises for people who have been
 481                                 // logging in with a temporary password for some time.
 482                                 //
 483                                 // As a side-effect, we can authenticate the user's e-mail ad-
 484                                 // dress if it's not already done, since the temporary password
 485                                 // was sent via e-mail.
 486                                 if( !$u->isEmailConfirmed() ) {
 487                                         $u->confirmEmail();
 488                                         $u->saveSettings();
 489                                 }
 490
 491                                 // At this point we just return an appropriate code/ indicating
 492                                 // that the UI should show a password reset form; bot inter-
 493                                 // faces etc will probably just fail cleanly here.
 494                                 $retval = self::RESET_PASS;
 495                         } else {
 496                                 $retval = ($this->mPassword  == '') ? self::EMPTY_PASS : self::WRONG_PASS;
 497                         }
 498                 } else {
 499                         $wgAuth->updateUser( $u );
 500                         $wgUser = $u;
 501
 502                         // Please reset throttle for successful logins, thanks!
 503                         if($throttleCount) {
 504                                 $wgMemc->delete($throttleKey);
 505                         }
 506
 507                         if ( $isAutoCreated ) {
 508                                 // Must be run after $wgUser is set, for correct new user log
 509                                 wfRunHooks( 'AuthPluginAutoCreate', array( $wgUser ) );
 510                         }
 511
 512                         $retval = self::SUCCESS;
 513                 }
 514                 wfRunHooks( 'LoginAuthenticateAudit', array( $u, $this->mPassword, $retval ) );
 515                 return $retval;
 516         }
 517
 518         /**
 519          * Attempt to automatically create a user on login. Only succeeds if there
 520          * is an external authentication method which allows it.
 521          * @return integer Status code
 522          */
 523         function attemptAutoCreate( $user ) {
 524                 global $wgAuth, $wgUser, $wgAutocreatePolicy;
 525
 526                 if ( $wgUser->isBlockedFromCreateAccount() ) {
 527                         wfDebug( __METHOD__.": user is blocked from account creation\n" );
 528                         return self::CREATE_BLOCKED;
 529                 }
 530
 531                 /**
 532                  * If the external authentication plugin allows it, automatically cre-
 533                  * ate a new account for users that are externally defined but have not
 534                  * yet logged in.
 535                  */
 536                 if ( $this->mExtUser ) {
 537                         # mExtUser is neither null nor false, so use the new ExternalAuth
 538                         # system.
 539                         if ( $wgAutocreatePolicy == 'never' ) {
 540                                 return self::NOT_EXISTS;
 541                         }
 542                         if ( !$this->mExtUser->authenticate( $this->mPassword ) ) {
 543                                 return self::WRONG_PLUGIN_PASS;
 544                         }
 545                 } else {
 546                         # Old AuthPlugin.
 547                         if ( !$wgAuth->autoCreate() ) {
 548                                 return self::NOT_EXISTS;
 549                         }
 550                         if ( !$wgAuth->userExists( $user->getName() ) ) {
 551                                 wfDebug( __METHOD__.": user does not exist\n" );
 552                                 return self::NOT_EXISTS;
 553                         }
 554                         if ( !$wgAuth->authenticate( $user->getName(), $this->mPassword ) ) {
 555                                 wfDebug( __METHOD__.": \$wgAuth->authenticate() returned false, aborting\n" );
 556                                 return self::WRONG_PLUGIN_PASS;
 557                         }
 558                 }
 559
 560                 wfDebug( __METHOD__.": creating account\n" );
 561                 $user = $this->initUser( $user, true );
 562                 return self::SUCCESS;
 563         }
 564
 565         function processLogin() {
 566                 global $wgUser, $wgAuth;
 567
 568                 switch ( $this->authenticateUserData() ) {
 569                         case self::SUCCESS:
 570                                 # We've verified now, update the real record
 571                                 if( (bool)$this->mRemember != (bool)$wgUser->getOption( 'rememberpassword' ) ) {
 572                                         $wgUser->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 573                                         $wgUser->saveSettings();
 574                                 } else {
 575                                         $wgUser->invalidateCache();
 576                                 }
 577                                 $wgUser->setCookies();
 578
 579                                 // Reset the throttle
 580                                 $key = wfMemcKey( 'password-throttle', wfGetIP(), md5( $this->mName ) );
 581                                 global $wgMemc;
 582                                 $wgMemc->delete( $key );
 583
 584                                 if( $this->hasSessionCookie() || $this->mSkipCookieCheck ) {
 585                                         /* Replace the language object to provide user interface in
 586                                          * correct language immediately on this first page load.
 587                                          */
 588                                         global $wgLang, $wgRequest;
 589                                         $code = $wgRequest->getVal( 'uselang', $wgUser->getOption( 'language' ) );
 590                                         $wgLang = Language::factory( $code );
 591                                         return $this->successfulLogin();
 592                                 } else {
 593                                         return $this->cookieRedirectCheck( 'login' );
 594                                 }
 595                                 break;
 596
 597                         case self::NO_NAME:
 598                         case self::ILLEGAL:
 599                                 $this->mainLoginForm( wfMsg( 'noname' ) );
 600                                 break;
 601                         case self::WRONG_PLUGIN_PASS:
 602                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 603                                 break;
 604                         case self::NOT_EXISTS:
 605                                 if( $wgUser->isAllowed( 'createaccount' ) ){
 606                                         $this->mainLoginForm( wfMsgWikiHtml( 'nosuchuser', htmlspecialchars( $this->mName ) ) );
 607                                 } else {
 608                                         $this->mainLoginForm( wfMsg( 'nosuchusershort', htmlspecialchars( $this->mName ) ) );
 609                                 }
 610                                 break;
 611                         case self::WRONG_PASS:
 612                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 613                                 break;
 614                         case self::EMPTY_PASS:
 615                                 $this->mainLoginForm( wfMsg( 'wrongpasswordempty' ) );
 616                                 break;
 617                         case self::RESET_PASS:
 618                                 $this->resetLoginForm( wfMsg( 'resetpass_announce' ) );
 619                                 break;
 620                         case self::CREATE_BLOCKED:
 621                                 $this->userBlockedMessage();
 622                                 break;
 623                         case self::THROTTLED:
 624                                 $this->mainLoginForm( wfMsg( 'login-throttled' ) );
 625                                 break;
 626                         case self::USER_BLOCKED:
 627                                 $this->mainLoginForm( wfMsg( 'login-userblocked' ) );
 628                                 break;
 629                         default:
 630                                 throw new MWException( "Unhandled case value" );
 631                 }
 632         }
 633
 634         function resetLoginForm( $error ) {
 635                 global $wgOut;
 636                 $wgOut->addHTML( Xml::element('p', array( 'class' => 'error' ), $error ) );
 637                 $reset = new SpecialResetpass();
 638                 $reset->execute( null );
 639         }
 640
 641         /**
 642          * @private
 643          */
 644         function mailPassword() {
 645                 global $wgUser, $wgOut, $wgAuth;
 646
 647                 if ( wfReadOnly() ) {
 648                         $wgOut->readOnlyPage();
 649                         return false;
 650                 }
 651
 652                 if( !$wgAuth->allowPasswordChange() ) {
 653                         $this->mainLoginForm( wfMsg( 'resetpass_forbidden' ) );
 654                         return;
 655                 }
 656
 657                 # Check against blocked IPs
 658                 # fixme -- should we not?
 659                 if( $wgUser->isBlocked() ) {
 660                         $this->mainLoginForm( wfMsg( 'blocked-mailpassword' ) );
 661                         return;
 662                 }
 663
 664                 // Check for hooks
 665                 $error = null;
 666                 if ( ! wfRunHooks( 'UserLoginMailPassword', array( $this->mName, &$error ) ) ) {
 667                         $this->mainLoginForm( $error );
 668                         return;
 669                 }
 670
 671                 # Check against the rate limiter
 672                 if( $wgUser->pingLimiter( 'mailpassword' ) ) {
 673                         $wgOut->rateLimited();
 674                         return;
 675                 }
 676
 677                 if ( $this->mName == '' ) {
 678                         $this->mainLoginForm( wfMsg( 'noname' ) );
 679                         return;
 680                 }
 681                 $u = User::newFromName( $this->mName );
 682                 if( is_null( $u ) ) {
 683                         $this->mainLoginForm( wfMsg( 'noname' ) );
 684                         return;
 685                 }
 686                 if ( 0 == $u->getID() ) {
 687                         $this->mainLoginForm( wfMsgWikiHtml( 'nosuchuser', htmlspecialchars( $u->getName() ) ) );
 688                         return;
 689                 }
 690
 691                 # Check against password throttle
 692                 if ( $u->isPasswordReminderThrottled() ) {
 693                         global $wgPasswordReminderResendTime;
 694                         # Round the time in hours to 3 d.p., in case someone is specifying
 695                         # minutes or seconds.
 696                         $this->mainLoginForm( wfMsgExt( 'throttled-mailpassword', array( 'parsemag' ),
 697                                 round( $wgPasswordReminderResendTime, 3 ) ) );
 698                         return;
 699                 }
 700
 701                 $result = $this->mailPasswordInternal( $u, true, 'passwordremindertitle', 'passwordremindertext' );
 702                 if( WikiError::isError( $result ) ) {
 703                         $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
 704                 } else {
 705                         $this->mainLoginForm( wfMsg( 'passwordsent', $u->getName() ), 'success' );
 706                 }
 707         }
 708
 709
 710         /**
 711          * @param object user
 712          * @param bool throttle
 713          * @param string message name of email title
 714          * @param string message name of email text
 715          * @return mixed true on success, WikiError on failure
 716          * @private
 717          */
 718         function mailPasswordInternal( $u, $throttle = true, $emailTitle = 'passwordremindertitle', $emailText = 'passwordremindertext' ) {
 719                 global $wgServer, $wgScript, $wgUser, $wgNewPasswordExpiry;
 720
 721                 if ( $u->getEmail() == '' ) {
 722                         return new WikiError( wfMsg( 'noemail', $u->getName() ) );
 723                 }
 724                 $ip = wfGetIP();
 725                 if( !$ip ) {
 726                         return new WikiError( wfMsg( 'badipaddress' ) );
 727                 }
 728
 729                 wfRunHooks( 'User::mailPasswordInternal', array(&$wgUser, &$ip, &$u) );
 730
 731                 $np = $u->randomPassword();
 732                 $u->setNewpassword( $np, $throttle );
 733                 $u->saveSettings();
 734                 $userLanguage = $u->getOption( 'language' );
 735                 $m = wfMsgExt( $emailText, array( 'parsemag', 'language' => $userLanguage ), $ip, $u->getName(), $np,
 736                                 $wgServer . $wgScript, round( $wgNewPasswordExpiry / 86400 ) );
 737                 $result = $u->sendMail( wfMsgExt( $emailTitle, array( 'parsemag', 'language' => $userLanguage ) ), $m );
 738
 739                 return $result;
 740         }
 741
 742
 743         /**
 744          * Run any hooks registered for logins, then HTTP redirect to
 745          * $this->mReturnTo (or Main Page if that's undefined).  Formerly we had a
 746          * nice message here, but that's really not as useful as just being sent to
 747          * wherever you logged in from.  It should be clear that the action was
 748          * successful, given the lack of error messages plus the appearance of your
 749          * name in the upper right.
 750          *
 751          * @private
 752          */
 753         function successfulLogin() {
 754                 global $wgUser, $wgOut;
 755
 756                 # Run any hooks; display injected HTML if any, else redirect
 757                 $injected_html = '';
 758                 wfRunHooks('UserLoginComplete', array(&$wgUser, &$injected_html));
 759
 760                 if( $injected_html !== '' ) {
 761                         $this->displaySuccessfulLogin( 'loginsuccess', $injected_html );
 762                 } else {
 763                         $titleObj = Title::newFromText( $this->mReturnTo );
 764                         if ( !$titleObj instanceof Title ) {
 765                                 $titleObj = Title::newMainPage();
 766                         }
 767                         $wgOut->redirect( $titleObj->getFullURL( $this->mReturnToQuery ) );
 768                 }
 769         }
 770
 771         /**
 772          * Run any hooks registered for logins, then display a message welcoming
 773          * the user.
 774          *
 775          * @private
 776          */
 777         function successfulCreation() {
 778                 global $wgUser, $wgOut;
 779
 780                 # Run any hooks; display injected HTML
 781                 $injected_html = '';
 782                 wfRunHooks('UserLoginComplete', array(&$wgUser, &$injected_html));
 783
 784                 $this->displaySuccessfulLogin( 'welcomecreation', $injected_html );
 785         }
 786
 787         /**
 788          * Display a "login successful" page.
 789          */
 790         private function displaySuccessfulLogin( $msgname, $injected_html ) {
 791                 global $wgOut, $wgUser;
 792
 793                 $wgOut->setPageTitle( wfMsg( 'loginsuccesstitle' ) );
 794                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 795                 $wgOut->setArticleRelated( false );
 796                 $wgOut->addWikiMsg( $msgname, $wgUser->getName() );
 797                 $wgOut->addHTML( $injected_html );
 798
 799                 if ( !empty( $this->mReturnTo ) ) {
 800                         $wgOut->returnToMain( null, $this->mReturnTo, $this->mReturnToQuery );
 801                 } else {
 802                         $wgOut->returnToMain( null );
 803                 }
 804         }
 805
 806         /** */
 807         function userNotPrivilegedMessage($errors) {
 808                 global $wgOut;
 809
 810                 $wgOut->setPageTitle( wfMsg( 'permissionserrors' ) );
 811                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 812                 $wgOut->setArticleRelated( false );
 813
 814                 $wgOut->addWikitext( $wgOut->formatPermissionsErrorMessage( $errors, 'createaccount' ) );
 815                 // Stuff that might want to be added at the end. For example, instruc-
 816                 // tions if blocked.
 817                 $wgOut->addWikiMsg( 'cantcreateaccount-nonblock-text' );
 818
 819                 $wgOut->returnToMain( false );
 820         }
 821
 822         /** */
 823         function userBlockedMessage() {
 824                 global $wgOut, $wgUser;
 825
 826                 # Let's be nice about this, it's likely that this feature will be used
 827                 # for blocking large numbers of innocent people, e.g. range blocks on
 828                 # schools. Don't blame it on the user. There's a small chance that it
 829                 # really is the user's fault, i.e. the username is blocked and they
 830                 # haven't bothered to log out before trying to create an account to
 831                 # evade it, but we'll leave that to their guilty conscience to figure
 832                 # out.
 833
 834                 $wgOut->setPageTitle( wfMsg( 'cantcreateaccounttitle' ) );
 835                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 836                 $wgOut->setArticleRelated( false );
 837
 838                 $ip = wfGetIP();
 839                 $blocker = User::whoIs( $wgUser->mBlock->mBy );
 840                 $block_reason = $wgUser->mBlock->mReason;
 841
 842                 if ( strval( $block_reason ) === '' ) {
 843                         $block_reason = wfMsg( 'blockednoreason' );
 844                 }
 845                 $wgOut->addWikiMsg( 'cantcreateaccount-text', $ip, $block_reason, $blocker );
 846                 $wgOut->returnToMain( false );
 847         }
 848
 849         /**
 850          * @private
 851          */
 852         function mainLoginForm( $msg, $msgtype = 'error' ) {
 853                 global $wgUser, $wgOut, $wgHiddenPrefs, $wgEnableEmail;
 854                 global $wgCookiePrefix, $wgLoginLanguageSelector;
 855                 global $wgAuth, $wgEmailConfirmToEdit, $wgCookieExpiration;
 856
 857                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 858
 859                 if ( $this->mType == 'signup' ) {
 860                         // Block signup here if in readonly. Keeps user from
 861                         // going through the process (filling out data, etc)
 862                         // and being informed later.
 863                         if ( wfReadOnly() ) {
 864                                 $wgOut->readOnlyPage();
 865                                 return;
 866                         } elseif ( $wgUser->isBlockedFromCreateAccount() ) {
 867                                 $this->userBlockedMessage();
 868                                 return;
 869                         } elseif ( count( $permErrors = $titleObj->getUserPermissionsErrors( 'createaccount', $wgUser, true ) )>0 ) {
 870                                 $wgOut->showPermissionsErrorPage( $permErrors, 'createaccount' );
 871                                 return;
 872                         }
 873                 }
 874
 875                 if ( $this->mName == '' ) {
 876                         if ( $wgUser->isLoggedIn() ) {
 877                                 $this->mName = $wgUser->getName();
 878                         } else {
 879                                 $this->mName = isset( $_COOKIE[$wgCookiePrefix.'UserName'] ) ? $_COOKIE[$wgCookiePrefix.'UserName'] : null;
 880                         }
 881                 }
 882
 883                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
 884
 885                 if ( $this->mType == 'signup' ) {
 886                         $template = new UsercreateTemplate();
 887                         $q = 'action=submitlogin&type=signup';
 888                         $linkq = 'type=login';
 889                         $linkmsg = 'gotaccount';
 890                 } else {
 891                         $template = new UserloginTemplate();
 892                         $q = 'action=submitlogin&type=login';
 893                         $linkq = 'type=signup';
 894                         $linkmsg = 'nologin';
 895                 }
 896
 897                 if ( !empty( $this->mReturnTo ) ) {
 898                         $returnto = '&returnto=' . wfUrlencode( $this->mReturnTo );
 899                         if ( !empty( $this->mReturnToQuery ) )
 900                                 $returnto .= '&returntoquery=' .
 901                                         wfUrlencode( $this->mReturnToQuery );
 902                         $q .= $returnto;
 903                         $linkq .= $returnto;
 904                 }
 905
 906                 # Pass any language selection on to the mode switch link
 907                 if( $wgLoginLanguageSelector && $this->mLanguage )
 908                         $linkq .= '&uselang=' . $this->mLanguage;
 909
 910                 $link = '<a href="' . htmlspecialchars ( $titleObj->getLocalUrl( $linkq ) ) . '">';
 911                 $link .= wfMsgHtml( $linkmsg . 'link' ); # Calling either 'gotaccountlink' or 'nologinlink'
 912                 $link .= '</a>';
 913
 914                 # Don't show a "create account" link if the user can't
 915                 if( $this->showCreateOrLoginLink( $wgUser ) )
 916                         $template->set( 'link', wfMsgWikiHtml( $linkmsg, $link ) );
 917                 else
 918                         $template->set( 'link', '' );
 919
 920                 $template->set( 'header', '' );
 921                 $template->set( 'name', $this->mName );
 922                 $template->set( 'password', $this->mPassword );
 923                 $template->set( 'retype', $this->mRetype );
 924                 $template->set( 'email', $this->mEmail );
 925                 $template->set( 'realname', $this->mRealName );
 926                 $template->set( 'domain', $this->mDomain );
 927
 928                 $template->set( 'action', $titleObj->getLocalUrl( $q ) );
 929                 $template->set( 'message', $msg );
 930                 $template->set( 'messagetype', $msgtype );
 931                 $template->set( 'createemail', $wgEnableEmail && $wgUser->isLoggedIn() );
 932                 $template->set( 'userealname', !in_array( 'realname', $wgHiddenPrefs ) );
 933                 $template->set( 'useemail', $wgEnableEmail );
 934                 $template->set( 'emailrequired', $wgEmailConfirmToEdit );
 935                 $template->set( 'canreset', $wgAuth->allowPasswordChange() );
 936                 $template->set( 'canremember', ( $wgCookieExpiration > 0 ) );
 937                 $template->set( 'remember', $wgUser->getOption( 'rememberpassword' ) or $this->mRemember  );
 938
 939                 # Prepare language selection links as needed
 940                 if( $wgLoginLanguageSelector ) {
 941                         $template->set( 'languages', $this->makeLanguageSelector() );
 942                         if( $this->mLanguage )
 943                                 $template->set( 'uselang', $this->mLanguage );
 944                 }
 945
 946                 // Give authentication and captcha plugins a chance to modify the form
 947                 $wgAuth->modifyUITemplate( $template, $this->mType );
 948                 if ( $this->mType == 'signup' ) {
 949                         wfRunHooks( 'UserCreateForm', array( &$template ) );
 950                 } else {
 951                         wfRunHooks( 'UserLoginForm', array( &$template ) );
 952                 }
 953
 954                 //Changes the title depending on permissions for creating account
 955                 if ( $wgUser->isAllowed( 'createaccount' ) ) {
 956                         $wgOut->setPageTitle( wfMsg( 'userlogin' ) );
 957                 } else {
 958                         $wgOut->setPageTitle( wfMsg( 'userloginnocreate' ) );
 959                 }
 960
 961                 $wgOut->setRobotPolicy( 'noindex,nofollow' );
 962                 $wgOut->setArticleRelated( false );
 963                 $wgOut->disallowUserJs();  // just in case...
 964                 $wgOut->addTemplate( $template );
 965         }
 966
 967         /**
 968          * @private
 969          */
 970         function showCreateOrLoginLink( &$user ) {
 971                 if( $this->mType == 'signup' ) {
 972                         return( true );
 973                 } elseif( $user->isAllowed( 'createaccount' ) ) {
 974                         return( true );
 975                 } else {
 976                         return( false );
 977                 }
 978         }
 979
 980         /**
 981          * Check if a session cookie is present.
 982          *
 983          * This will not pick up a cookie set during _this_ request, but is meant
 984          * to ensure that the client is returning the cookie which was set on a
 985          * previous pass through the system.
 986          *
 987          * @private
 988          */
 989         function hasSessionCookie() {
 990                 global $wgDisableCookieCheck, $wgRequest;
 991                 return $wgDisableCookieCheck ? true : $wgRequest->checkSessionCookie();
 992         }
 993
 994         /**
 995          * @private
 996          */
 997         function cookieRedirectCheck( $type ) {
 998                 global $wgOut;
 999
1000                 $titleObj = SpecialPage::getTitleFor( 'Userlogin' );
1001                 $query = array( 'wpCookieCheck' => $type );
1002                 if ( $this->mReturnTo ) $query['returnto'] = $this->mReturnTo;
1003                 $check = $titleObj->getFullURL( $query );
1004
1005                 return $wgOut->redirect( $check );
1006         }
1007
1008         /**
1009          * @private
1010          */
1011         function onCookieRedirectCheck( $type ) {
1012                 if ( !$this->hasSessionCookie() ) {
1013                         if ( $type == 'new' ) {
1014                                 return $this->mainLoginForm( wfMsgExt( 'nocookiesnew', array( 'parseinline' ) ) );
1015                         } else if ( $type == 'login' ) {
1016                                 return $this->mainLoginForm( wfMsgExt( 'nocookieslogin', array( 'parseinline' ) ) );
1017                         } else {
1018                                 # shouldn't happen
1019                                 return $this->mainLoginForm( wfMsg( 'error' ) );
1020                         }
1021                 } else {
1022                         return $this->successfulLogin();
1023                 }
1024         }
1025
1026         /**
1027          * @private
1028          */
1029         function throttleHit( $limit ) {
1030                 $this->mainLoginForm( wfMsgExt( 'acct_creation_throttle_hit', array( 'parseinline' ), $limit ) );
1031         }
1032
1033         /**
1034          * Produce a bar of links which allow the user to select another language
1035          * during login/registration but retain "returnto"
1036          *
1037          * @return string
1038          */
1039         function makeLanguageSelector() {
1040                 global $wgLang;
1041
1042                 $msg = wfMsgForContent( 'loginlanguagelinks' );
1043                 if( $msg != '' && !wfEmptyMsg( 'loginlanguagelinks', $msg ) ) {
1044                         $langs = explode( "\n", $msg );
1045                         $links = array();
1046                         foreach( $langs as $lang ) {
1047                                 $lang = trim( $lang, '* ' );
1048                                 $parts = explode( '|', $lang );
1049                                 if (count($parts) >= 2) {
1050                                         $links[] = $this->makeLanguageSelectorLink( $parts[0], $parts[1] );
1051                                 }
1052                         }
1053                         return count( $links ) > 0 ? wfMsgHtml( 'loginlanguagelabel', $wgLang->pipeList( $links ) ) : '';
1054                 } else {
1055                         return '';
1056                 }
1057         }
1058
1059         /**
1060          * Create a language selector link for a particular language
1061          * Links back to this page preserving type and returnto
1062          *
1063          * @param $text Link text
1064          * @param $lang Language code
1065          */
1066         function makeLanguageSelectorLink( $text, $lang ) {
1067                 global $wgUser;
1068                 $self = SpecialPage::getTitleFor( 'Userlogin' );
1069                 $attr = array( 'uselang' => $lang );
1070                 if( $this->mType == 'signup' )
1071                         $attr['type'] = 'signup';
1072                 if( $this->mReturnTo )
1073                         $attr['returnto'] = $this->mReturnTo;
1074                 $skin = $wgUser->getSkin();
1075                 return $skin->linkKnown(
1076                         $self,
1077                         htmlspecialchars( $text ),
1078                         array(),
1079                         $attr
1080                 );
1081         }
1082 }