includes/User.php

   1 <?php
   2 /**
   3  * See user.doc
   4  *
   5  * @package MediaWiki
   6  */
   7
   8 /**
   9  *
  10  */
  11 require_once( 'WatchedItem.php' );
  12
  13 # Number of characters in user_token field
  14 define( 'USER_TOKEN_LENGTH', 32 );
  15
  16 /**
  17  *
  18  * @package MediaWiki
  19  */
  20 class User {
  21         /**#@+
  22          * @access private
  23          */
  24         var $mId, $mName, $mPassword, $mEmail, $mNewtalk;
  25         var $mRights, $mOptions;
  26         var $mDataLoaded, $mNewpassword;
  27         var $mSkin;
  28         var $mBlockedby, $mBlockreason;
  29         var $mTouched;
  30         var $mToken;
  31         var $mRealName;
  32         var $mHash;
  33         /** Array of group id the user belong to */
  34         var $mGroups;
  35         /**#@-*/
  36
  37         /** Construct using User:loadDefaults() */
  38         function User() {
  39                 $this->loadDefaults();
  40         }
  41
  42         /**
  43          * Static factory method
  44          * @static
  45          * @param string $name Username, validated by Title:newFromText()
  46          */
  47         function newFromName( $name ) {
  48                 $u = new User();
  49
  50                 # Clean up name according to title rules
  51
  52                 $t = Title::newFromText( $name );
  53                 if( is_null( $t ) ) {
  54                         return NULL;
  55                 } else {
  56                         $u->setName( $t->getText() );
  57                         return $u;
  58                 }
  59         }
  60
  61         /**
  62          * Get username given an id.
  63          * @param integer $id Database user id
  64          * @return string Nickname of a user
  65          * @static
  66          */
  67         function whoIs( $id )   {
  68                 $dbr =& wfGetDB( DB_SLAVE );
  69                 return $dbr->selectField( 'user', 'user_name', array( 'user_id' => $id ) );
  70         }
  71
  72         /**
  73          * Get real username given an id.
  74          * @param integer $id Database user id
  75          * @return string Realname of a user
  76          * @static
  77          */
  78         function whoIsReal( $id )       {
  79                 $dbr =& wfGetDB( DB_SLAVE );
  80                 return $dbr->selectField( 'user', 'user_real_name', array( 'user_id' => $id ) );
  81         }
  82
  83         /**
  84          * Get database id given a user name
  85          * @param string $name Nickname of a user
  86          * @return integer|null Database user id (null: if non existent
  87          * @static
  88          */
  89         function idFromName( $name ) {
  90                 $fname = "User::idFromName";
  91
  92                 $nt = Title::newFromText( $name );
  93                 if( is_null( $nt ) ) {
  94                         # Illegal name
  95                         return null;
  96                 }
  97                 $dbr =& wfGetDB( DB_SLAVE );
  98                 $s = $dbr->selectRow( 'user', array( 'user_id' ), array( 'user_name' => $nt->getText() ), $fname );
  99
 100                 if ( $s === false ) {
 101                         return 0;
 102                 } else {
 103                         return $s->user_id;
 104                 }
 105         }
 106
 107         /**
 108          * does the string match an anonymous user IP address?
 109          * @param string $name Nickname of a user
 110          * @static
 111          */
 112         function isIP( $name ) {
 113                 return preg_match("/^\d{1,3}\.\d{1,3}.\d{1,3}\.\d{1,3}$/",$name);
 114         }
 115
 116         /**
 117          * probably return a random password
 118          * @return string probably a random password
 119          * @static
 120          * @todo Check what is doing really [AV]
 121          */
 122         function randomPassword() {
 123                 $pwchars = 'ABCDEFGHJKLMNPQRSTUVWXYZabcdefghjkmnpqrstuvwxyz';
 124                 $l = strlen( $pwchars ) - 1;
 125
 126                 $np = $pwchars{mt_rand( 0, $l )} . $pwchars{mt_rand( 0, $l )} .
 127                   $pwchars{mt_rand( 0, $l )} . chr( mt_rand(48, 57) ) .
 128                   $pwchars{mt_rand( 0, $l )} . $pwchars{mt_rand( 0, $l )} .
 129                   $pwchars{mt_rand( 0, $l )};
 130                 return $np;
 131         }
 132
 133         /**
 134          * Set properties to default
 135          * Used at construction. It will load per language default settings only
 136          * if we have an available language object.
 137          */
 138         function loadDefaults() {
 139                 global $wgContLang, $wgIP;
 140                 global $wgNamespacesToBeSearchedDefault;
 141
 142                 $this->mId = $this->mNewtalk = 0;
 143                 $this->mName = $wgIP;
 144                 $this->mRealName = $this->mEmail = '';
 145                 $this->mPassword = $this->mNewpassword = '';
 146                 $this->mRights = array();
 147                 $this->mGroups = array();
 148
 149                 // Getting user defaults only if we have an available language
 150                 if(isset($wgContLang)) { $this->loadDefaultFromLanguage(); }
 151
 152                 foreach ($wgNamespacesToBeSearchedDefault as $nsnum => $val) {
 153                         $this->mOptions['searchNs'.$nsnum] = $val;
 154                 }
 155                 unset( $this->mSkin );
 156                 $this->mDataLoaded = false;
 157                 $this->mBlockedby = -1; # Unset
 158                 $this->mTouched = '0'; # Allow any pages to be cached
 159                 $this->setToken(); # Random
 160                 $this->mHash = false;
 161         }
 162
 163         /**
 164          * Used to load user options from a language.
 165          * This is not in loadDefault() cause we sometime create user before having
 166          * a language object.
 167          */
 168         function loadDefaultFromLanguage(){
 169                 global $wgContLang;
 170                 $defOpt = $wgContLang->getDefaultUserOptions() ;
 171                 foreach ( $defOpt as $oname => $val ) {
 172                         $this->mOptions[$oname] = $val;
 173                 }
 174         /*
 175            default language setting
 176         */
 177         $this->setOption('variant', $wgContLang->getPreferredVariant());
 178         $this->setOption('language', $wgContLang->getPreferredVariant());
 179         }
 180
 181         /**
 182          * Get blocking information
 183          * @access private
 184          */
 185         function getBlockedStatus() {
 186                 global $wgIP, $wgBlockCache, $wgProxyList;
 187
 188                 if ( -1 != $this->mBlockedby ) { return; }
 189
 190                 $this->mBlockedby = 0;
 191
 192                 # User blocking
 193                 if ( $this->mId ) {
 194                         $block = new Block();
 195                         if ( $block->load( $wgIP , $this->mId ) ) {
 196                                 $this->mBlockedby = $block->mBy;
 197                                 $this->mBlockreason = $block->mReason;
 198                         }
 199                 }
 200
 201                 # IP/range blocking
 202                 if ( !$this->mBlockedby ) {
 203                         $block = $wgBlockCache->get( $wgIP );
 204                         if ( $block !== false ) {
 205                                 $this->mBlockedby = $block->mBy;
 206                                 $this->mBlockreason = $block->mReason;
 207                         }
 208                 }
 209
 210                 # Proxy blocking
 211                 if ( !$this->mBlockedby ) {
 212                         if ( array_key_exists( $wgIP, $wgProxyList ) ) {
 213                                 $this->mBlockreason = wfMsg( 'proxyblockreason' );
 214                                 $this->mBlockedby = "Proxy blocker";
 215                         }
 216                 }
 217         }
 218
 219         /**
 220          * Check if user is blocked
 221          * @return bool True if blocked, false otherwise
 222          */
 223         function isBlocked() {
 224                 $this->getBlockedStatus();
 225                 if ( 0 === $this->mBlockedby ) { return false; }
 226                 return true;
 227         }
 228
 229         /**
 230          * Get name of blocker
 231          * @return string name of blocker
 232          */
 233         function blockedBy() {
 234                 $this->getBlockedStatus();
 235                 return $this->mBlockedby;
 236         }
 237
 238         /**
 239          * Get blocking reason
 240          * @return string Blocking reason
 241          */
 242         function blockedFor() {
 243                 $this->getBlockedStatus();
 244                 return $this->mBlockreason;
 245         }
 246
 247         /**
 248          * Initialise php session
 249          */
 250         function SetupSession() {
 251                 global $wgSessionsInMemcached, $wgCookiePath, $wgCookieDomain;
 252                 if( $wgSessionsInMemcached ) {
 253                         require_once( 'MemcachedSessions.php' );
 254                 } elseif( 'files' != ini_get( 'session.save_handler' ) ) {
 255                         # If it's left on 'user' or another setting from another
 256                         # application, it will end up failing. Try to recover.
 257                         ini_set ( 'session.save_handler', 'files' );
 258                 }
 259                 session_set_cookie_params( 0, $wgCookiePath, $wgCookieDomain );
 260                 session_cache_limiter( 'private, must-revalidate' );
 261                 @session_start();
 262         }
 263
 264         /**
 265          * Read datas from session
 266          * @static
 267          */
 268         function loadFromSession() {
 269                 global $wgMemc, $wgDBname;
 270
 271                 if ( isset( $_SESSION['wsUserID'] ) ) {
 272                         if ( 0 != $_SESSION['wsUserID'] ) {
 273                                 $sId = $_SESSION['wsUserID'];
 274                         } else {
 275                                 return new User();
 276                         }
 277                 } else if ( isset( $_COOKIE["{$wgDBname}UserID"] ) ) {
 278                         $sId = IntVal( $_COOKIE["{$wgDBname}UserID"] );
 279                         $_SESSION['wsUserID'] = $sId;
 280                 } else {
 281                         return new User();
 282                 }
 283                 if ( isset( $_SESSION['wsUserName'] ) ) {
 284                         $sName = $_SESSION['wsUserName'];
 285                 } else if ( isset( $_COOKIE["{$wgDBname}UserName"] ) ) {
 286                         $sName = $_COOKIE["{$wgDBname}UserName"];
 287                         $_SESSION['wsUserName'] = $sName;
 288                 } else {
 289                         return new User();
 290                 }
 291
 292                 $passwordCorrect = FALSE;
 293                 $user = $wgMemc->get( $key = "$wgDBname:user:id:$sId" );
 294                 if($makenew = !$user) {
 295                         wfDebug( "User::loadFromSession() unable to load from memcached\n" );
 296                         $user = new User();
 297                         $user->mId = $sId;
 298                         $user->loadFromDatabase();
 299                 } else {
 300                         wfDebug( "User::loadFromSession() got from cache!\n" );
 301                 }
 302
 303                 if ( isset( $_SESSION['wsToken'] ) ) {
 304                         $passwordCorrect = $_SESSION['wsToken'] == $user->mToken;
 305                 } else if ( isset( $_COOKIE["{$wgDBname}Token"] ) ) {
 306                         $passwordCorrect = $user->mToken == $_COOKIE["{$wgDBname}Token"];
 307                 } else {
 308                         return new User(); # Can't log in from session
 309                 }
 310
 311                 if ( ( $sName == $user->mName ) && $passwordCorrect ) {
 312                         if($makenew) {
 313                                 if($wgMemc->set( $key, $user ))
 314                                         wfDebug( "User::loadFromSession() successfully saved user\n" );
 315                                 else
 316                                         wfDebug( "User::loadFromSession() unable to save to memcached\n" );
 317                         }
 318                         $user->spreadBlock();
 319                         return $user;
 320                 }
 321                 return new User(); # Can't log in from session
 322         }
 323
 324         /**
 325          * Load a user from the database
 326          */
 327         function loadFromDatabase() {
 328                 global $wgCommandLineMode;
 329                 $fname = "User::loadFromDatabase";
 330                 if ( $this->mDataLoaded || $wgCommandLineMode ) {
 331                         return;
 332                 }
 333
 334                 # Paranoia
 335                 $this->mId = IntVal( $this->mId );
 336
 337                 # check in separate table if there are changes to the talk page
 338                 $this->mNewtalk=0; # reset talk page status
 339                 $dbr =& wfGetDB( DB_SLAVE );
 340                 if($this->mId) {
 341                         $res = $dbr->select( 'user_newtalk', 1, array( 'user_id' => $this->mId ), $fname );
 342
 343                         if ( $dbr->numRows($res)>0 ) {
 344                                 $this->mNewtalk= 1;
 345                         }
 346                         $dbr->freeResult( $res );
 347                 } else {
 348                         global $wgDBname, $wgMemc;
 349                         $key = "$wgDBname:newtalk:ip:{$this->mName}";
 350                         $newtalk = $wgMemc->get( $key );
 351                         if( ! is_integer( $newtalk ) ){
 352                                 $res = $dbr->select( 'user_newtalk', 1, array( 'user_ip' => $this->mName ), $fname );
 353
 354                                 $this->mNewtalk = $dbr->numRows( $res ) > 0 ? 1 : 0;
 355                                 $dbr->freeResult( $res );
 356
 357                                 $wgMemc->set( $key, $this->mNewtalk, time() ); // + 1800 );
 358                         } else {
 359                                 $this->mNewtalk = $newtalk ? 1 : 0;
 360                         }
 361                 }
 362                 if(!$this->mId) {
 363                         $this->mDataLoaded = true;
 364                         return;
 365                 } # the following stuff is for non-anonymous users only
 366
 367                 $s = $dbr->selectRow( 'user', array( 'user_name','user_password','user_newpassword','user_email',
 368                   'user_real_name','user_options','user_touched', 'user_token' ),
 369                   array( 'user_id' => $this->mId ), $fname );
 370
 371                 if ( $s !== false ) {
 372                         $this->mName = $s->user_name;
 373                         $this->mEmail = $s->user_email;
 374                         $this->mRealName = $s->user_real_name;
 375                         $this->mPassword = $s->user_password;
 376                         $this->mNewpassword = $s->user_newpassword;
 377                         $this->decodeOptions( $s->user_options );
 378                         $this->mTouched = wfTimestamp(TS_MW,$s->user_touched);
 379                         $this->mToken = $s->user_token;
 380
 381                         $this->mRights = explode( ",", strtolower(
 382                                 $dbr->selectField( 'user_rights', 'user_rights', array( 'user_id' => $this->mId ) )
 383                         ) );
 384
 385                         // Get groups id
 386                         $sql = 'SELECT group_id FROM user_groups WHERE user_id = \''.$this->mId.'\';';
 387                         $res = $dbr->query($sql,DB_SLAVE,$fname);
 388                         while($group = $dbr->fetchRow($res)) {
 389                                 $this->mGroups[] = $group[0];
 390                                 }
 391                         $dbr->freeResult($res);
 392                 }
 393
 394                 $this->mDataLoaded = true;
 395         }
 396
 397         function getID() { return $this->mId; }
 398         function setID( $v ) {
 399                 $this->mId = $v;
 400                 $this->mDataLoaded = false;
 401         }
 402
 403         function getName() {
 404                 $this->loadFromDatabase();
 405                 return $this->mName;
 406         }
 407
 408         function setName( $str ) {
 409                 $this->loadFromDatabase();
 410                 $this->mName = $str;
 411         }
 412
 413         function getNewtalk() {
 414                 $this->loadFromDatabase();
 415                 return ( 0 != $this->mNewtalk );
 416         }
 417
 418         function setNewtalk( $val ) {
 419                 $this->loadFromDatabase();
 420                 $this->mNewtalk = $val;
 421                 $this->invalidateCache();
 422         }
 423
 424         function invalidateCache() {
 425                 $this->loadFromDatabase();
 426                 $this->mTouched = wfTimestampNow();
 427                 # Don't forget to save the options after this or
 428                 # it won't take effect!
 429         }
 430
 431         function validateCache( $timestamp ) {
 432                 $this->loadFromDatabase();
 433                 return ($timestamp >= $this->mTouched);
 434         }
 435
 436         /**
 437          * Salt a password.
 438          * Will only be salted if $wgPasswordSalt is true
 439          * @param string Password.
 440          * @return string Salted password or clear password.
 441          */
 442         function addSalt( $p ) {
 443                 global $wgPasswordSalt;
 444                 if($wgPasswordSalt)
 445                         return md5( "{$this->mId}-{$p}" );
 446                 else
 447                         return $p;
 448         }
 449
 450         /**
 451          * Encrypt a password.
 452          * It can eventuall salt a password @see User::addSalt()
 453          * @param string $p clear Password.
 454          * @param string Encrypted password.
 455          */
 456         function encryptPassword( $p ) {
 457                 return $this->addSalt( md5( $p ) );
 458         }
 459
 460         # Set the password and reset the random token
 461         function setPassword( $str ) {
 462                 $this->loadFromDatabase();
 463                 $this->setToken();
 464                 $this->mPassword = $this->encryptPassword( $str );
 465                 $this->mNewpassword = '';
 466         }
 467
 468         # Set the random token (used for persistent authentication)
 469         function setToken( $token = false ) {
 470                 if ( !$token ) {
 471                         $this->mToken = '';
 472                         # Take random data from PRNG
 473                         # This is reasonably secure if the PRNG has been seeded correctly
 474                         for ($i = 0; $i<USER_TOKEN_LENGTH / 4; $i++) {
 475                                 $this->mToken .= sprintf( "%04X", mt_rand( 0, 65535 ) );
 476                         }
 477                 } else {
 478                         $this->mToken = $token;
 479                 }
 480         }
 481
 482
 483         function setCookiePassword( $str ) {
 484                 $this->loadFromDatabase();
 485                 $this->mCookiePassword = md5( $str );
 486         }
 487
 488         function setNewpassword( $str ) {
 489                 $this->loadFromDatabase();
 490                 $this->mNewpassword = $this->encryptPassword( $str );
 491         }
 492
 493         function getEmail() {
 494                 $this->loadFromDatabase();
 495                 return $this->mEmail;
 496         }
 497
 498         function setEmail( $str ) {
 499                 $this->loadFromDatabase();
 500                 $this->mEmail = $str;
 501         }
 502
 503         function getRealName() {
 504                 $this->loadFromDatabase();
 505                 return $this->mRealName;
 506         }
 507
 508         function setRealName( $str ) {
 509                 $this->loadFromDatabase();
 510                 $this->mRealName = $str;
 511         }
 512
 513         function getOption( $oname ) {
 514                 $this->loadFromDatabase();
 515                 if ( array_key_exists( $oname, $this->mOptions ) ) {
 516                         return $this->mOptions[$oname];
 517                 } else {
 518                         return '';
 519                 }
 520         }
 521
 522         function setOption( $oname, $val ) {
 523                 $this->loadFromDatabase();
 524                 if ( $oname == 'skin' ) {
 525                         # Clear cached skin, so the new one displays immediately in Special:Preferences
 526                         unset( $this->mSkin );
 527                 }
 528                 $this->mOptions[$oname] = $val;
 529                 $this->invalidateCache();
 530         }
 531
 532         function getRights() {
 533                 $this->loadFromDatabase();
 534                 return $this->mRights;
 535         }
 536
 537         function addRight( $rname )     {
 538                 $this->loadFromDatabase();
 539                 array_push( $this->mRights, $rname );
 540                 $this->invalidateCache();
 541         }
 542
 543         function getGroups() {
 544                 $this->loadFromDatabase();
 545                 return $this->mGroups;
 546         }
 547
 548         function setGroups($groups) {
 549                 $this->loadFromDatabase();
 550                 $this->mGroups = $groups;
 551                 $this->invalidateCache();
 552         }
 553
 554         function isSysop() {
 555                 $this->loadFromDatabase();
 556                 if ( 0 == $this->mId ) { return false; }
 557
 558                 return in_array( 'sysop', $this->mRights );
 559         }
 560
 561         function isDeveloper() {
 562                 $this->loadFromDatabase();
 563                 if ( 0 == $this->mId ) { return false; }
 564
 565                 return in_array( 'developer', $this->mRights );
 566         }
 567
 568         function isBureaucrat() {
 569                 $this->loadFromDatabase();
 570                 if ( 0 == $this->mId ) { return false; }
 571
 572                 return in_array( 'bureaucrat', $this->mRights );
 573         }
 574
 575         /**
 576          * Whether the user is a bot
 577          */
 578         function isBot() {
 579                 $this->loadFromDatabase();
 580
 581                 # Why was this here? I need a UID=0 conversion script [TS]
 582                 # if ( 0 == $this->mId ) { return false; }
 583
 584                 return in_array( 'bot', $this->mRights );
 585         }
 586
 587         /**
 588          * Load a skin if it doesn't exist or return it
 589          * @todo FIXME : need to check the old failback system [AV]
 590          */
 591         function &getSkin() {
 592                 global $IP, $wgUsePHPTal;
 593                 if ( ! isset( $this->mSkin ) ) {
 594                         # get all skin names available
 595                         $skinNames = Skin::getSkinNames();
 596                         # get the user skin
 597                         $userSkin = $this->getOption( 'skin' );
 598                         if ( $userSkin == '' ) { $userSkin = 'standard'; }
 599
 600                         if ( !isset( $skinNames[$userSkin] ) ) {
 601                                 # in case the user skin could not be found find a replacement
 602                                 $fallback = array(
 603                                         0 => 'Standard',
 604                                         1 => 'Nostalgia',
 605                                         2 => 'CologneBlue');
 606                                 # if phptal is enabled we should have monobook skin that
 607                                 # superseed the good old SkinStandard.
 608                                 if ( isset( $skinNames['monobook'] ) ) {
 609                                         $fallback[0] = 'MonoBook';
 610                                 }
 611
 612                                 if(is_numeric($userSkin) && isset( $fallback[$userSkin]) ){
 613                                         $sn = $fallback[$userSkin];
 614                                 } else {
 615                                         $sn = 'Standard';
 616                                 }
 617                         } else {
 618                                 # The user skin is available
 619                                 $sn = $skinNames[$userSkin];
 620                         }
 621
 622                         # Grab the skin class and initialise it. Each skin checks for PHPTal
 623                         # and will not load if it's not enabled.
 624                         require_once( $IP.'/skins/'.$sn.'.php' );
 625
 626                         # Check if we got if not failback to default skin
 627                         $className = 'Skin'.$sn;
 628                         if( !class_exists( $className ) ) {
 629                                 # DO NOT die if the class isn't found. This breaks maintenance
 630                                 # scripts and can cause a user account to be unrecoverable
 631                                 # except by SQL manipulation if a previously valid skin name
 632                                 # is no longer valid.
 633                                 $className = 'SkinStandard';
 634                                 require_once( $IP.'/skins/Standard.php' );
 635                         }
 636                         $this->mSkin = new $className;
 637                 }
 638                 return $this->mSkin;
 639         }
 640
 641         /**#@+
 642          * @param string $title Article title to look at
 643          */
 644
 645         /**
 646          * Check watched status of an article
 647          * @return bool True if article is watched
 648          */
 649         function isWatched( $title ) {
 650                 $wl = WatchedItem::fromUserTitle( $this, $title );
 651                 return $wl->isWatched();
 652         }
 653
 654         /**
 655          * Watch an article
 656          */
 657         function addWatch( $title ) {
 658                 $wl = WatchedItem::fromUserTitle( $this, $title );
 659                 $wl->addWatch();
 660                 $this->invalidateCache();
 661         }
 662
 663         /**
 664          * Stop watching an article
 665          */
 666         function removeWatch( $title ) {
 667                 $wl = WatchedItem::fromUserTitle( $this, $title );
 668                 $wl->removeWatch();
 669                 $this->invalidateCache();
 670         }
 671         /**#@-*/
 672
 673         /**
 674          * @access private
 675          * @return string Encoding options
 676          */
 677         function encodeOptions() {
 678                 $a = array();
 679                 foreach ( $this->mOptions as $oname => $oval ) {
 680                         array_push( $a, $oname.'='.$oval );
 681                 }
 682                 $s = implode( "\n", $a );
 683                 return $s;
 684         }
 685
 686         /**
 687          * @access private
 688          */
 689         function decodeOptions( $str ) {
 690                 $a = explode( "\n", $str );
 691                 foreach ( $a as $s ) {
 692                         if ( preg_match( "/^(.[^=]*)=(.*)$/", $s, $m ) ) {
 693                                 $this->mOptions[$m[1]] = $m[2];
 694                         }
 695                 }
 696         }
 697
 698         function setCookies() {
 699                 global $wgCookieExpiration, $wgCookiePath, $wgCookieDomain, $wgDBname;
 700                 if ( 0 == $this->mId ) return;
 701                 $this->loadFromDatabase();
 702                 $exp = time() + $wgCookieExpiration;
 703
 704                 $_SESSION['wsUserID'] = $this->mId;
 705                 setcookie( $wgDBname.'UserID', $this->mId, $exp, $wgCookiePath, $wgCookieDomain );
 706
 707                 $_SESSION['wsUserName'] = $this->mName;
 708                 setcookie( $wgDBname.'UserName', $this->mName, $exp, $wgCookiePath, $wgCookieDomain );
 709
 710                 $_SESSION['wsToken'] = $this->mToken;
 711                 if ( 1 == $this->getOption( 'rememberpassword' ) ) {
 712                         setcookie( $wgDBname.'Token', $this->mToken, $exp, $wgCookiePath, $wgCookieDomain );
 713                 } else {
 714                         setcookie( $wgDBname.'Token', '', time() - 3600 );
 715                 }
 716         }
 717
 718         /**
 719          * Logout user
 720          * It will clean the session cookie
 721          */
 722         function logout() {
 723                 global $wgCookiePath, $wgCookieDomain, $wgDBname, $wgIP;
 724                 $this->loadDefaults();
 725                 $this->setLoaded( true );
 726
 727                 $_SESSION['wsUserID'] = 0;
 728
 729                 setcookie( $wgDBname.'UserID', '', time() - 3600, $wgCookiePath, $wgCookieDomain );
 730                 setcookie( $wgDBname.'Token', '', time() - 3600, $wgCookiePath, $wgCookieDomain );
 731         }
 732
 733         /**
 734          * Save object settings into database
 735          */
 736         function saveSettings() {
 737                 global $wgMemc, $wgDBname;
 738                 $fname = 'User::saveSettings';
 739
 740                 $dbw =& wfGetDB( DB_MASTER );
 741                 if ( ! $this->mNewtalk ) {
 742                         # Delete user_newtalk row
 743                         if( $this->mId ) {
 744                                 $dbw->delete( 'user_newtalk', array( 'user_id' => $this->mId ), $fname );
 745                         } else {
 746                                 $dbw->delete( 'user_newtalk', array( 'user_ip' => $this->mName ), $fname );
 747                                 $wgMemc->delete( "$wgDBname:newtalk:ip:{$this->mName}" );
 748                         }
 749                 }
 750                 if ( 0 == $this->mId ) { return; }
 751
 752                 $dbw->update( 'user',
 753                         array( /* SET */
 754                                 'user_name' => $this->mName,
 755                                 'user_password' => $this->mPassword,
 756                                 'user_newpassword' => $this->mNewpassword,
 757                                 'user_real_name' => $this->mRealName,
 758                                 'user_email' => $this->mEmail,
 759                                 'user_options' => $this->encodeOptions(),
 760                                 'user_touched' => $dbw->timestamp($this->mTouched),
 761                                 'user_token' => $this->mToken
 762                         ), array( /* WHERE */
 763                                 'user_id' => $this->mId
 764                         ), $fname
 765                 );
 766                 $dbw->set( 'user_rights', 'user_rights', implode( ',', $this->mRights ),
 767                         'user_id='. $this->mId, $fname );
 768                 $wgMemc->delete( "$wgDBname:user:id:$this->mId" );
 769
 770                 // delete old groups
 771                 $dbw->delete( 'user_groups', array( 'user_id' => $this->mId), $fname);
 772                 // save new ones
 773                 foreach ($this->mGroups as $group) {
 774                         $dbw->replace( 'user_groups',
 775                                 array(array('user_id','group_id')),
 776                                 array(
 777                                         'user_id' => $this->mId,
 778                                         'group_id' => $group
 779                                 ), $fname
 780                         );
 781                 }
 782         }
 783
 784         /**
 785          * Checks if a user with the given name exists, returns the ID
 786          */
 787         function idForName() {
 788                 $fname = 'User::idForName';
 789
 790                 $gotid = 0;
 791                 $s = trim( $this->mName );
 792                 if ( 0 == strcmp( '', $s ) ) return 0;
 793
 794                 $dbr =& wfGetDB( DB_SLAVE );
 795                 $id = $dbr->selectField( 'user', 'user_id', array( 'user_name' => $s ), $fname );
 796                 if ( $id === false ) {
 797                         $id = 0;
 798                 }
 799                 return $id;
 800         }
 801
 802         /**
 803          * Add user object to the database
 804          */
 805         function addToDatabase() {
 806                 $fname = 'User::addToDatabase';
 807                 $dbw =& wfGetDB( DB_MASTER );
 808                 $seqVal = $dbw->nextSequenceValue( 'user_user_id_seq' );
 809                 $dbw->insert( 'user',
 810                         array(
 811                                 'user_id' => $seqVal,
 812                                 'user_name' => $this->mName,
 813                                 'user_password' => $this->mPassword,
 814                                 'user_newpassword' => $this->mNewpassword,
 815                                 'user_email' => $this->mEmail,
 816                                 'user_real_name' => $this->mRealName,
 817                                 'user_options' => $this->encodeOptions(),
 818                                 'user_token' => $this->mToken
 819                         ), $fname
 820                 );
 821                 $this->mId = $dbw->insertId();
 822                 $dbw->insert( 'user_rights',
 823                         array(
 824                                 'user_id' => $this->mId,
 825                                 'user_rights' => implode( ',', $this->mRights )
 826                         ), $fname
 827                 );
 828
 829                 foreach ($this->mGroups as $group) {
 830                         $dbw->insert( 'user_groups',
 831                                 array(
 832                                         'user_id' => $this->mId,
 833                                         'group_id' => $group
 834                                 ), $fname
 835                         );
 836                 }
 837         }
 838
 839         function spreadBlock() {
 840                 global $wgIP;
 841                 # If the (non-anonymous) user is blocked, this function will block any IP address
 842                 # that they successfully log on from.
 843                 $fname = 'User::spreadBlock';
 844
 845                 wfDebug( "User:spreadBlock()\n" );
 846                 if ( $this->mId == 0 ) {
 847                         return;
 848                 }
 849
 850                 $userblock = Block::newFromDB( '', $this->mId );
 851                 if ( !$userblock->isValid() ) {
 852                         return;
 853                 }
 854
 855                 # Check if this IP address is already blocked
 856                 $ipblock = Block::newFromDB( $wgIP );
 857                 if ( $ipblock->isValid() ) {
 858                         # Just update the timestamp
 859                         $ipblock->updateTimestamp();
 860                         return;
 861                 }
 862
 863                 # Make a new block object with the desired properties
 864                 wfDebug( "Autoblocking {$this->mName}@{$wgIP}\n" );
 865                 $ipblock->mAddress = $wgIP;
 866                 $ipblock->mUser = 0;
 867                 $ipblock->mBy = $userblock->mBy;
 868                 $ipblock->mReason = wfMsg( 'autoblocker', $this->getName(), $userblock->mReason );
 869                 $ipblock->mTimestamp = wfTimestampNow();
 870                 $ipblock->mAuto = 1;
 871                 # If the user is already blocked with an expiry date, we don't
 872                 # want to pile on top of that!
 873                 if($userblock->mExpiry) {
 874                         $ipblock->mExpiry = min ( $userblock->mExpiry, Block::getAutoblockExpiry( $ipblock->mTimestamp ));
 875                 } else {
 876                         $ipblock->mExpiry = Block::getAutoblockExpiry( $ipblock->mTimestamp );
 877                 }
 878
 879                 # Insert it
 880                 $ipblock->insert();
 881
 882         }
 883
 884         function getPageRenderingHash() {
 885         global $wgContLang;
 886                 if( $this->mHash ){
 887                         return $this->mHash;
 888                 }
 889
 890                 // stubthreshold is only included below for completeness,
 891                 // it will always be 0 when this function is called by parsercache.
 892
 893                 $confstr =        $this->getOption( 'math' );
 894                 $confstr .= '!' . $this->getOption( 'highlightbroken' );
 895                 $confstr .= '!' . $this->getOption( 'stubthreshold' );
 896                 $confstr .= '!' . $this->getOption( 'editsection' );
 897                 $confstr .= '!' . $this->getOption( 'editsectiononrightclick' );
 898                 $confstr .= '!' . $this->getOption( 'showtoc' );
 899                 $confstr .= '!' . $this->getOption( 'date' );
 900                 $confstr .= '!' . $this->getOption( 'numberheadings' );
 901
 902         // add in language variant option if there are multiple variants
 903         // supported by the language object
 904         if(sizeof($wgContLang->getVariants())>1) {
 905              $confstr .= '!' . $this->getOption( 'variant' );
 906         }
 907
 908                 $this->mHash = $confstr;
 909                 return $confstr ;
 910         }
 911
 912         function isAllowedToCreateAccount() {
 913                 global $wgWhitelistAccount;
 914                 $allowed = false;
 915
 916                 if (!$wgWhitelistAccount) { return 1; }; // default behaviour
 917                 foreach ($wgWhitelistAccount as $right => $ok) {
 918                         $userHasRight = (!strcmp($right, 'user') || in_array($right, $this->getRights()));
 919                         $allowed |= ($ok && $userHasRight);
 920                 }
 921                 return $allowed;
 922         }
 923
 924         /**
 925          * Set mDataLoaded, return previous value
 926          * Use this to prevent DB access in command-line scripts or similar situations
 927          */
 928         function setLoaded( $loaded ) {
 929                 return wfSetVar( $this->mDataLoaded, $loaded );
 930         }
 931
 932         function getUserPage() {
 933                 return Title::makeTitle( NS_USER, $this->mName );
 934         }
 935
 936         /**
 937          * @static
 938          */
 939         function getMaxID() {
 940                 $dbr =& wfGetDB( DB_SLAVE );
 941                 return $dbr->selectField( 'user', 'max(user_id)', false );
 942         }
 943
 944         /**
 945          * Determine whether the user is a newbie. Newbies are either
 946          * anonymous IPs, or the 1% most recently created accounts.
 947          * Bots and sysops are excluded.
 948          * @return bool True if it is a newbie.
 949          */
 950         function isNewbie() {
 951                 return $this->mId > User::getMaxID() * 0.99 && !$this->isSysop() && !$this->isBot() || $this->getID() == 0;
 952         }
 953
 954         /**
 955          * Check to see if the given clear-text password is one of the accepted passwords
 956          * @param string $password User password.
 957          * @return bool True if the given password is correct otherwise False.
 958          */
 959         function checkPassword( $password ) {
 960                 $this->loadFromDatabase();
 961                 $ep = $this->encryptPassword( $password );
 962                 if ( 0 == strcmp( $ep, $this->mPassword ) ) {
 963                         return true;
 964                 } elseif ( 0 == strcmp( $ep, $this->mNewpassword ) ) {
 965                         return true;
 966                 } elseif ( function_exists( 'iconv' ) ) {
 967                         # Some wikis were converted from ISO 8859-1 to UTF-8, the passwords can't be converted
 968                         # Check for this with iconv
 969 /*                      $cp1252hash = $this->encryptPassword( iconv( 'UTF-8', 'WINDOWS-1252', $password ) );
 970                         if ( 0 == strcmp( $cp1252hash, $this->mPassword ) ) {
 971                                 return true;
 972                         }*/
 973                 }
 974                 return false;
 975         }
 976 }
 977
 978 ?>