includes/User.php

   1 <?php
   2 # See user.doc
   3
   4 include_once( "WatchedItem.php" );
   5
   6 class User {
   7         /* private */ var $mId, $mName, $mPassword, $mEmail, $mNewtalk;
   8         /* private */ var $mRights, $mOptions;
   9         /* private */ var $mDataLoaded, $mNewpassword;
  10         /* private */ var $mSkin;
  11         /* private */ var $mBlockedby, $mBlockreason;
  12         /* private */ var $mTouched;
  13         /* private */ var $mCookiePassword;
  14         /* private */ var $mRealName;
  15
  16         function User()
  17         {
  18                 $this->loadDefaults();
  19         }
  20
  21         # Static factory method
  22         #
  23         function newFromName( $name )
  24         {
  25                 $u = new User();
  26
  27                 # Clean up name according to title rules
  28
  29                 $t = Title::newFromText( $name );
  30                 $u->setName( $t->getText() );
  31                 return $u;
  32         }
  33
  34         /* static */ function whoIs( $id )
  35         {
  36                 return wfGetSQL( "user", "user_name", "user_id=$id" );
  37         }
  38
  39         /* static */ function whoIsReal( $id )
  40         {
  41                 return wfGetSQL( "user", "user_real_name", "user_id=$id" );
  42         }
  43
  44         /* static */ function idFromName( $name )
  45         {
  46                 $nt = Title::newFromText( $name );
  47                 $sql = "SELECT user_id FROM user WHERE user_name='" .
  48                   wfStrencode( $nt->getText() ) . "'";
  49                 $res = wfQuery( $sql, DB_READ, "User::idFromName" );
  50
  51                 if ( 0 == wfNumRows( $res ) ) { return 0; }
  52                 else {
  53                         $s = wfFetchObject( $res );
  54                         return $s->user_id;
  55                 }
  56         }
  57
  58         # does the string match an anonymous user IP address?
  59         /* static */ function isIP( $name ) {
  60                 return preg_match("/^\d{1,3}\.\d{1,3}.\d{1,3}\.\d{1,3}$/",$name);
  61
  62         }
  63
  64         /* static */ function randomPassword()
  65         {
  66                 $pwchars = "ABCDEFGHJKLMNPQRSTUVWXYZabcdefghjkmnpqrstuvwxyz";
  67                 $l = strlen( $pwchars ) - 1;
  68
  69                 wfSeedRandom();
  70                 $np = $pwchars{mt_rand( 0, $l )} . $pwchars{mt_rand( 0, $l )} .
  71                   $pwchars{mt_rand( 0, $l )} . chr( mt_rand(48, 57) ) .
  72                   $pwchars{mt_rand( 0, $l )} . $pwchars{mt_rand( 0, $l )} .
  73                   $pwchars{mt_rand( 0, $l )};
  74                 return $np;
  75         }
  76
  77         function loadDefaults()
  78         {
  79                 global $wgLang, $wgIP;
  80                 global $wgNamespacesToBeSearchedDefault;
  81
  82                 $this->mId = $this->mNewtalk = 0;
  83                 $this->mName = $wgIP;
  84                 $this->mEmail = "";
  85                 $this->mPassword = $this->mNewpassword = "";
  86                 $this->mRights = array();
  87                 $defOpt = $wgLang->getDefaultUserOptions() ;
  88                 foreach ( $defOpt as $oname => $val ) {
  89                         $this->mOptions[$oname] = $val;
  90                 }
  91                 foreach ($wgNamespacesToBeSearchedDefault as $nsnum => $val) {
  92                         $this->mOptions["searchNs".$nsnum] = $val;
  93                 }
  94                 unset( $this->mSkin );
  95                 $this->mDataLoaded = false;
  96                 $this->mBlockedby = -1; # Unset
  97                 $this->mTouched = '0'; # Allow any pages to be cached
  98                 $this->cookiePassword = "";
  99         }
 100
 101         /* private */ function getBlockedStatus()
 102         {
 103                 global $wgIP, $wgBlockCache;
 104
 105                 if ( -1 != $this->mBlockedby ) { return; }
 106
 107                 $this->mBlockedby = 0;
 108
 109                 # User blocking
 110                 if ( $this->mId ) {
 111                         $block = new Block();
 112                         if ( $block->load( $wgIP , $this->mId ) ) {
 113                                 $this->mBlockedby = $block->mBy;
 114                                 $this->mBlockreason = $block->mReason;
 115                         }
 116                 }
 117
 118                 # IP/range blocking
 119                 if ( !$this->mBlockedby ) {
 120                         $block = $wgBlockCache->get( $wgIP );
 121                         if ( $block !== false ) {
 122                                 $this->mBlockedby = $block->mBy;
 123                                 $this->mBlockreason = $block->mReason;
 124                         }
 125                 }
 126         }
 127
 128         function isBlocked()
 129         {
 130                 $this->getBlockedStatus();
 131                 if ( 0 == $this->mBlockedby ) { return false; }
 132                 return true;
 133         }
 134
 135         function blockedBy() {
 136                 $this->getBlockedStatus();
 137                 return $this->mBlockedby;
 138         }
 139
 140         function blockedFor() {
 141                 $this->getBlockedStatus();
 142                 return $this->mBlockreason;
 143         }
 144
 145         function SetupSession() {
 146                 global $wgSessionsInMemcached, $wgCookiePath, $wgCookieDomain;
 147                 if( $wgSessionsInMemcached ) {
 148                         include_once( "MemcachedSessions.php" );
 149                 }
 150                 session_set_cookie_params( 0, $wgCookiePath, $wgCookieDomain );
 151                 session_cache_limiter( "private, must-revalidate" );
 152                 @session_start();
 153         }
 154
 155         /* static */ function loadFromSession()
 156         {
 157                 global $wgMemc, $wgDBname;
 158
 159                 if ( isset( $_SESSION['wsUserID'] ) ) {
 160                         if ( 0 != $_SESSION['wsUserID'] ) {
 161                                 $sId = $_SESSION['wsUserID'];
 162                         } else {
 163                                 return new User();
 164                         }
 165                 } else if ( isset( $_COOKIE["{$wgDBname}UserID"] ) ) {
 166                         $sId = IntVal( $_COOKIE["{$wgDBname}UserID"] );
 167                         $_SESSION['wsUserID'] = $sId;
 168                 } else {
 169                         return new User();
 170                 }
 171                 if ( isset( $_SESSION['wsUserName'] ) ) {
 172                         $sName = $_SESSION['wsUserName'];
 173                 } else if ( isset( $_COOKIE["{$wgDBname}UserName"] ) ) {
 174                         $sName = $_COOKIE["{$wgDBname}UserName"];
 175                         $_SESSION['wsUserName'] = $sName;
 176                 } else {
 177                         return new User();
 178                 }
 179
 180                 $passwordCorrect = FALSE;
 181                 $user = $wgMemc->get( $key = "$wgDBname:user:id:$sId" );
 182                 if($makenew = !$user) {
 183                         wfDebug( "User::loadFromSession() unable to load from memcached\n" );
 184                         $user = new User();
 185                         $user->mId = $sId;
 186                         $user->loadFromDatabase();
 187                 } else {
 188                         wfDebug( "User::loadFromSession() got from cache!\n" );
 189                 }
 190
 191                 if ( isset( $_SESSION['wsUserPassword'] ) ) {
 192                         $passwordCorrect = $_SESSION['wsUserPassword'] == $user->mPassword;
 193                 } else if ( isset( $_COOKIE["{$wgDBname}Password"] ) ) {
 194                         $user->mCookiePassword = $_COOKIE["{$wgDBname}Password"];
 195                         $_SESSION['wsUserPassword'] = $user->addSalt( $user->mCookiePassword );
 196                         $passwordCorrect = $_SESSION['wsUserPassword'] == $user->mPassword;
 197                 } else {
 198                         return new User(); # Can't log in from session
 199                 }
 200
 201                 if ( ( $sName == $user->mName ) && $passwordCorrect ) {
 202                         if($makenew) {
 203                                 if($wgMemc->set( $key, $user ))
 204                                         wfDebug( "User::loadFromSession() successfully saved user\n" );
 205                                 else
 206                                         wfDebug( "User::loadFromSession() unable to save to memcached\n" );
 207                         }
 208                         $user->spreadBlock();
 209                         return $user;
 210                 }
 211                 return new User(); # Can't log in from session
 212         }
 213
 214         function loadFromDatabase()
 215         {
 216                 global $wgCommandLineMode;
 217                 if ( $this->mDataLoaded || $wgCommandLineMode ) {
 218                         return;
 219                 }
 220
 221                 # Paranoia
 222                 $this->mId = IntVal( $this->mId );
 223
 224                 # check in separate table if there are changes to the talk page
 225                 $this->mNewtalk=0; # reset talk page status
 226                 if($this->mId) {
 227                         $sql = "SELECT 1 FROM user_newtalk WHERE user_id={$this->mId}";
 228                         $res = wfQuery ($sql, DB_READ, "User::loadFromDatabase" );
 229
 230                         if (wfNumRows($res)>0) {
 231                                 $this->mNewtalk= 1;
 232                         }
 233                         wfFreeResult( $res );
 234                 } else {
 235                         global $wgDBname, $wgMemc;
 236                         $key = "$wgDBname:newtalk:ip:{$this->mName}";
 237                         $newtalk = $wgMemc->get( $key );
 238                         if( ! is_integer( $newtalk ) ){
 239                                 $sql = "SELECT 1 FROM user_newtalk WHERE user_ip='{$this->mName}'";
 240                                 $res = wfQuery ($sql, DB_READ, "User::loadFromDatabase" );
 241
 242                                 $this->mNewtalk = (wfNumRows($res)>0) ? 1 : 0;
 243                                 wfFreeResult( $res );
 244
 245                                 $wgMemc->set( $key, $this->mNewtalk, time() ); // + 1800 );
 246                         } else {
 247                                 $this->mNewtalk = $newtalk ? 1 : 0;
 248                         }
 249                 }
 250                 if(!$this->mId) {
 251                         $this->mDataLoaded = true;
 252                         return;
 253                 } # the following stuff is for non-anonymous users only
 254
 255                 $sql = "SELECT user_name,user_password,user_newpassword,user_email," .
 256                   "user_real_name,user_options,user_rights,user_touched " .
 257                   " FROM user WHERE user_id=" . $this->mId;
 258                 $res = wfQuery( $sql, DB_READ, "User::loadFromDatabase" );
 259
 260                 if ( wfNumRows( $res ) > 0 ) {
 261                         $s = wfFetchObject( $res );
 262                         $this->mName = $s->user_name;
 263                         $this->mEmail = $s->user_email;
 264                         $this->mRealName = $s->user_real_name;
 265                         $this->mPassword = $s->user_password;
 266                         $this->mNewpassword = $s->user_newpassword;
 267                         $this->decodeOptions( $s->user_options );
 268                         $this->mRights = explode( ",", strtolower( $s->user_rights ) );
 269                         $this->mTouched = $s->user_touched;
 270                 }
 271
 272                 wfFreeResult( $res );
 273                 $this->mDataLoaded = true;
 274         }
 275
 276         function getID() { return $this->mId; }
 277         function setID( $v ) {
 278                 $this->mId = $v;
 279                 $this->mDataLoaded = false;
 280         }
 281
 282         function getName() {
 283                 $this->loadFromDatabase();
 284                 return $this->mName;
 285         }
 286
 287         function setName( $str )
 288         {
 289                 $this->loadFromDatabase();
 290                 $this->mName = $str;
 291         }
 292
 293         function getNewtalk()
 294         {
 295                 $this->loadFromDatabase();
 296                 return ( 0 != $this->mNewtalk );
 297         }
 298
 299         function setNewtalk( $val )
 300         {
 301                 $this->loadFromDatabase();
 302                 $this->mNewtalk = $val;
 303                 $this->invalidateCache();
 304         }
 305
 306         function invalidateCache() {
 307                 $this->loadFromDatabase();
 308                 $this->mTouched = wfTimestampNow();
 309                 # Don't forget to save the options after this or
 310                 # it won't take effect!
 311         }
 312
 313         function validateCache( $timestamp ) {
 314                 $this->loadFromDatabase();
 315                 return ($timestamp >= $this->mTouched);
 316         }
 317
 318         function getPassword()
 319         {
 320                 $this->loadFromDatabase();
 321                 return $this->mPassword;
 322         }
 323
 324         function getNewpassword()
 325         {
 326                 $this->loadFromDatabase();
 327                 return $this->mNewpassword;
 328         }
 329
 330         function addSalt( $p )
 331         {
 332                 global $wgPasswordSalt;
 333                 if($wgPasswordSalt)
 334                         return md5( "{$this->mId}-{$p}" );
 335                 else
 336                         return $p;
 337         }
 338
 339         function encryptPassword( $p )
 340         {
 341                 return $this->addSalt( md5( $p ) );
 342         }
 343
 344         function setPassword( $str )
 345         {
 346                 $this->loadFromDatabase();
 347                 $this->setCookiePassword( $str );
 348                 $this->mPassword = $this->encryptPassword( $str );
 349                 $this->mNewpassword = "";
 350         }
 351
 352         function setCookiePassword( $str )
 353         {
 354                 $this->loadFromDatabase();
 355                 $this->mCookiePassword = md5( $str );
 356         }
 357
 358         function setNewpassword( $str )
 359         {
 360                 $this->loadFromDatabase();
 361                 $this->mNewpassword = $this->encryptPassword( $str );
 362         }
 363
 364         function getEmail()
 365         {
 366                 $this->loadFromDatabase();
 367                 return $this->mEmail;
 368         }
 369
 370         function setEmail( $str )
 371         {
 372                 $this->loadFromDatabase();
 373                 $this->mEmail = $str;
 374         }
 375
 376         function getRealName()
 377         {
 378                 $this->loadFromDatabase();
 379                 return $this->mRealName;
 380         }
 381
 382         function setRealName( $str )
 383         {
 384                 $this->loadFromDatabase();
 385                 $this->mRealName = $str;
 386         }
 387
 388         function getOption( $oname )
 389         {
 390                 $this->loadFromDatabase();
 391                 if ( array_key_exists( $oname, $this->mOptions ) ) {
 392                         return $this->mOptions[$oname];
 393                 } else {
 394                         return "";
 395                 }
 396         }
 397
 398         function setOption( $oname, $val )
 399         {
 400                 $this->loadFromDatabase();
 401                 if ( $oname == 'skin' ) {
 402                         # Clear cached skin, so the new one displays immediately in Special:Preferences
 403                         unset( $this->mSkin );
 404                 }
 405                 $this->mOptions[$oname] = $val;
 406                 $this->invalidateCache();
 407         }
 408
 409         function getRights()
 410         {
 411                 $this->loadFromDatabase();
 412                 return $this->mRights;
 413         }
 414
 415         function addRight( $rname )
 416         {
 417                 $this->loadFromDatabase();
 418                 array_push( $this->mRights, $rname );
 419                 $this->invalidateCache();
 420         }
 421
 422         function isSysop()
 423         {
 424                 $this->loadFromDatabase();
 425                 if ( 0 == $this->mId ) { return false; }
 426
 427                 return in_array( "sysop", $this->mRights );
 428         }
 429
 430         function isDeveloper()
 431         {
 432                 $this->loadFromDatabase();
 433                 if ( 0 == $this->mId ) { return false; }
 434
 435                 return in_array( "developer", $this->mRights );
 436         }
 437
 438         function isBureaucrat()
 439         {
 440                 $this->loadFromDatabase();
 441                 if ( 0 == $this->mId ) { return false; }
 442
 443                 return in_array( "bureaucrat", $this->mRights );
 444         }
 445
 446         function isBot()
 447         {
 448                 $this->loadFromDatabase();
 449
 450                 # Why was this here? I need a UID=0 conversion script [TS]
 451                 # if ( 0 == $this->mId ) { return false; }
 452
 453                 return in_array( "bot", $this->mRights );
 454         }
 455
 456         function &getSkin()
 457         {
 458                 if ( ! isset( $this->mSkin ) ) {
 459                         $skinNames = Skin::getSkinNames();
 460                         $s = $this->getOption( "skin" );
 461                         if ( "" == $s ) { $s = 'standard'; }
 462
 463                         if ( !isset( $skinNames[$s] ) ) {
 464                                 $fallback = array(
 465                                         'standard' => "Standard",
 466                                         'nostalgia' => "Nostalgia",
 467                                         'cologneblue' => "Cologne Blue");
 468                                 if(is_int($s) && isset( $fallback[$s]) ){
 469                                         $sn = $fallback[$s];
 470                                 } else {
 471                                         $sn = "SkinStandard";
 472                                 }
 473                         } else {
 474                                 $sn = "Skin" . $skinNames[$s];
 475                         }
 476                         $this->mSkin = new $sn;
 477                 }
 478                 return $this->mSkin;
 479         }
 480
 481         function isWatched( $title ) {
 482                 $wl = WatchedItem::fromUserTitle( $this, $title );
 483                 return $wl->isWatched();
 484         }
 485
 486         function addWatch( $title ) {
 487                 $wl = WatchedItem::fromUserTitle( $this, $title );
 488                 $wl->addWatch();
 489                 $this->invalidateCache();
 490         }
 491
 492         function removeWatch( $title ) {
 493                 $wl = WatchedItem::fromUserTitle( $this, $title );
 494                 $wl->removeWatch();
 495                 $this->invalidateCache();
 496         }
 497
 498
 499         /* private */ function encodeOptions()
 500         {
 501                 $a = array();
 502                 foreach ( $this->mOptions as $oname => $oval ) {
 503                         array_push( $a, "{$oname}={$oval}" );
 504                 }
 505                 $s = implode( "\n", $a );
 506                 return wfStrencode( $s );
 507         }
 508
 509         /* private */ function decodeOptions( $str )
 510         {
 511                 $a = explode( "\n", $str );
 512                 foreach ( $a as $s ) {
 513                         if ( preg_match( "/^(.[^=]*)=(.*)$/", $s, $m ) ) {
 514                                 $this->mOptions[$m[1]] = $m[2];
 515                         }
 516                 }
 517         }
 518
 519         function setCookies()
 520         {
 521                 global $wgCookieExpiration, $wgCookiePath, $wgCookieDomain, $wgDBname;
 522                 if ( 0 == $this->mId ) return;
 523                 $this->loadFromDatabase();
 524                 $exp = time() + $wgCookieExpiration;
 525
 526                 $_SESSION['wsUserID'] = $this->mId;
 527                 setcookie( "{$wgDBname}UserID", $this->mId, $exp, $wgCookiePath, $wgCookieDomain );
 528
 529                 $_SESSION['wsUserName'] = $this->mName;
 530                 setcookie( "{$wgDBname}UserName", $this->mName, $exp, $wgCookiePath, $wgCookieDomain );
 531
 532                 $_SESSION['wsUserPassword'] = $this->mPassword;
 533                 if ( 1 == $this->getOption( "rememberpassword" ) ) {
 534                         setcookie( "{$wgDBname}Password", $this->mCookiePassword, $exp, $wgCookiePath, $wgCookieDomain );
 535                 } else {
 536                         setcookie( "{$wgDBname}Password", "", time() - 3600 );
 537                 }
 538         }
 539
 540         function logout()
 541         {
 542                 global $wgCookiePath, $wgCookieDomain, $wgDBname;
 543                 $this->mId = 0;
 544
 545                 $_SESSION['wsUserID'] = 0;
 546
 547                 setcookie( "{$wgDBname}UserID", "", time() - 3600, $wgCookiePath, $wgCookieDomain );
 548                 setcookie( "{$wgDBname}Password", "", time() - 3600, $wgCookiePath, $wgCookieDomain );
 549         }
 550
 551         function saveSettings()
 552         {
 553                 global $wgMemc, $wgDBname;
 554
 555                 if ( ! $this->mNewtalk ) {
 556                         if( $this->mId ) {
 557                                 $sql="DELETE FROM user_newtalk WHERE user_id={$this->mId}";
 558                                 wfQuery ($sql, DB_WRITE, "User::saveSettings");
 559                         } else {
 560                                 $sql="DELETE FROM user_newtalk WHERE user_ip='{$this->mName}'";
 561                                 wfQuery ($sql, DB_WRITE, "User::saveSettings");
 562                                 $wgMemc->delete( "$wgDBname:newtalk:ip:{$this->mName}" );
 563                         }
 564                 }
 565                 if ( 0 == $this->mId ) { return; }
 566
 567                 $sql = "UPDATE user SET " .
 568                   "user_name= '" . wfStrencode( $this->mName ) . "', " .
 569                   "user_password= '" . wfStrencode( $this->mPassword ) . "', " .
 570                   "user_newpassword= '" . wfStrencode( $this->mNewpassword ) . "', " .
 571                   "user_real_name= '" . wfStrencode( $this->mRealName ) . "', " .
 572                   "user_email= '" . wfStrencode( $this->mEmail ) . "', " .
 573                   "user_options= '" . $this->encodeOptions() . "', " .
 574                   "user_rights= '" . wfStrencode( implode( ",", $this->mRights ) ) . "', " .
 575                   "user_touched= '" . wfStrencode( $this->mTouched ) .
 576                   "' WHERE user_id={$this->mId}";
 577                 wfQuery( $sql, DB_WRITE, "User::saveSettings" );
 578                 $wgMemc->delete( "$wgDBname:user:id:$this->mId" );
 579         }
 580
 581         # Checks if a user with the given name exists
 582         #
 583         function idForName()
 584         {
 585                 $gotid = 0;
 586                 $s = trim( $this->mName );
 587                 if ( 0 == strcmp( "", $s ) ) return 0;
 588
 589                 $sql = "SELECT user_id FROM user WHERE user_name='" .
 590                   wfStrencode( $s ) . "'";
 591                 $res = wfQuery( $sql, DB_READ, "User::idForName" );
 592                 if ( 0 == wfNumRows( $res ) ) { return 0; }
 593
 594                 $s = wfFetchObject( $res );
 595                 if ( "" == $s ) return 0;
 596
 597                 $gotid = $s->user_id;
 598                 wfFreeResult( $res );
 599                 return $gotid;
 600         }
 601
 602         function addToDatabase()
 603         {
 604                 $sql = "INSERT INTO user (user_name,user_password,user_newpassword," .
 605                   "user_email, user_real_name, user_rights, user_options) " .
 606                   " VALUES ('" . wfStrencode( $this->mName ) . "', '" .
 607                   wfStrencode( $this->mPassword ) . "', '" .
 608                   wfStrencode( $this->mNewpassword ) . "', '" .
 609                   wfStrencode( $this->mEmail ) . "', '" .
 610                   wfStrencode( $this->mRealName ) . "', '" .
 611                   wfStrencode( implode( ",", $this->mRights ) ) . "', '" .
 612                   $this->encodeOptions() . "')";
 613                 wfQuery( $sql, DB_WRITE, "User::addToDatabase" );
 614                 $this->mId = $this->idForName();
 615         }
 616
 617         function spreadBlock()
 618         {
 619                 global $wgIP;
 620                 # If the (non-anonymous) user is blocked, this function will block any IP address
 621                 # that they successfully log on from.
 622                 $fname = "User::spreadBlock";
 623
 624                 wfDebug( "User:spreadBlock()\n" );
 625                 if ( $this->mId == 0 ) {
 626                         return;
 627                 }
 628
 629                 $userblock = Block::newFromDB( "", $this->mId );
 630                 if ( !$userblock->isValid() ) {
 631                         return;
 632                 }
 633
 634                 # Check if this IP address is already blocked
 635                 $ipblock = Block::newFromDB( $wgIP );
 636                 if ( $ipblock->isValid() ) {
 637                         # Just update the timestamp
 638                         $ipblock->updateTimestamp();
 639                         return;
 640                 }
 641
 642                 # Make a new block object with the desired properties
 643                 wfDebug( "Autoblocking {$this->mUserName}@{$wgIP}\n" );
 644                 $ipblock->mAddress = $wgIP;
 645                 $ipblock->mUser = 0;
 646                 $ipblock->mBy = $userblock->mBy;
 647                 $ipblock->mReason = wfMsg( "autoblocker", $this->getName(), $userblock->mReason );
 648                 $ipblock->mTimestamp = wfTimestampNow();
 649                 $ipblock->mAuto = 1;
 650                 # If the user is already blocked with an expiry date, we don't
 651                 # want to pile on top of that!
 652                 if($userblock->mExpiry) {
 653                         $ipblock->mExpiry = min ( $userblock->mExpiry, Block::getAutoblockExpiry( $ipblock->mTimestamp ));
 654                 } else {
 655                         $ipblock->mExpiry = Block::getAutoblockExpiry( $ipblock->mTimestamp );
 656                 }
 657
 658                 # Insert it
 659                 $ipblock->insert();
 660
 661         }
 662
 663         function getPageRenderingHash(){
 664                 static $hash = false;
 665                 if( $hash ){
 666                         return $hash;
 667                 }
 668
 669                 // stubthreshold is only included below for completeness,
 670                 // it will always be 0 when this function is called by parsercache.
 671
 672                 $confstr =        $this->getOption( "quickbar" );
 673                 $confstr .= "!" . $this->getOption( "underline" );
 674                 $confstr .= "!" . $this->getOption( "hover" );
 675                 $confstr .= "!" . $this->getOption( "skin" );
 676                 $confstr .= "!" . $this->getOption( "math" );
 677                 $confstr .= "!" . $this->getOption( "highlightbroken" );
 678                 $confstr .= "!" . $this->getOption( "stubthreshold" );
 679                 $confstr .= "!" . $this->getOption( "editsection" );
 680                 $confstr .= "!" . $this->getOption( "editsectiononrightclick" );
 681                 $confstr .= "!" . $this->getOption( "showtoc" );
 682                 $confstr .= "!" . $this->getOption( "date" );
 683
 684                 if(strlen($confstr) > 32)
 685                         $hash = md5($confstr);
 686                 else
 687                         $hash = $confstr;
 688                 return $hash;
 689         }
 690
 691         function isAllowedToCreateAccount()
 692         {
 693                 global $wgWhitelistAccount;
 694                 $allowed = false;
 695
 696                 if (!$wgWhitelistAccount) { return 1; }; // default behaviour
 697                 foreach ($wgWhitelistAccount as $right => $ok) {
 698                         $userHasRight = (!strcmp($right, "user") || in_array($right, $this->getRights()));
 699                         $allowed |= ($ok && $userHasRight);
 700                 }
 701                 return $allowed;
 702         }
 703
 704         # Set mDataLoaded, return previous value
 705         # Use this to prevent DB access in command-line scripts or similar situations
 706         function setLoaded( $loaded )
 707         {
 708                 wfSetVar( $this->mDataLoaded, $loaded );
 709         }
 710
 711         function getUserPage() {
 712                 return Title::makeTitle( NS_USER, $this->mName );
 713         }
 714 }
 715
 716 ?>