includes/User.php

   1 <?php
   2 /**
   3  * See user.txt
   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 $mEmailAuthenticated;
  26         var $mRights, $mOptions;
  27         var $mDataLoaded, $mNewpassword;
  28         var $mSkin;
  29         var $mBlockedby, $mBlockreason;
  30         var $mTouched;
  31         var $mToken;
  32         var $mRealName;
  33         var $mHash;
  34         var $mGroups;
  35
  36         /** Construct using User:loadDefaults() */
  37         function User() {
  38                 $this->loadDefaults();
  39         }
  40
  41         /**
  42          * Static factory method
  43          * @param string $name Username, validated by Title:newFromText()
  44          * @return User
  45          * @static
  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                         $u->setId( $u->idFromName( $t->getText() ) );
  58                         return $u;
  59                 }
  60         }
  61
  62         /**
  63          * Factory method to fetch whichever use has a given email confirmation code.
  64          * This code is generated when an account is created or its e-mail address
  65          * has changed.
  66          *
  67          * If the code is invalid or has expired, returns NULL.
  68          *
  69          * @param string $code
  70          * @return User
  71          * @static
  72          */
  73         function newFromConfirmationCode( $code ) {
  74                 $dbr =& wfGetDB( DB_SLAVE );
  75                 $name = $dbr->selectField( 'user', 'user_name', array(
  76                         'user_email_token' => md5( $code ),
  77                         'user_email_token_expires > ' . $dbr->addQuotes( $dbr->timestamp() ),
  78                         ) );
  79                 if( is_string( $name ) ) {
  80                         return User::newFromName( $name );
  81                 } else {
  82                         return null;
  83                 }
  84         }
  85
  86         /**
  87          * Get username given an id.
  88          * @param integer $id Database user id
  89          * @return string Nickname of a user
  90          * @static
  91          */
  92         function whoIs( $id )   {
  93                 $dbr =& wfGetDB( DB_SLAVE );
  94                 return $dbr->selectField( 'user', 'user_name', array( 'user_id' => $id ) );
  95         }
  96
  97         /**
  98          * Get real username given an id.
  99          * @param integer $id Database user id
 100          * @return string Realname of a user
 101          * @static
 102          */
 103         function whoIsReal( $id )       {
 104                 $dbr =& wfGetDB( DB_SLAVE );
 105                 return $dbr->selectField( 'user', 'user_real_name', array( 'user_id' => $id ) );
 106         }
 107
 108         /**
 109          * Get database id given a user name
 110          * @param string $name Nickname of a user
 111          * @return integer|null Database user id (null: if non existent
 112          * @static
 113          */
 114         function idFromName( $name ) {
 115                 $fname = "User::idFromName";
 116
 117                 $nt = Title::newFromText( $name );
 118                 if( is_null( $nt ) ) {
 119                         # Illegal name
 120                         return null;
 121                 }
 122                 $dbr =& wfGetDB( DB_SLAVE );
 123                 $s = $dbr->selectRow( 'user', array( 'user_id' ), array( 'user_name' => $nt->getText() ), $fname );
 124
 125                 if ( $s === false ) {
 126                         return 0;
 127                 } else {
 128                         return $s->user_id;
 129                 }
 130         }
 131
 132         /**
 133          * does the string match an anonymous IPv4 address?
 134          *
 135          * @static
 136          * @param string $name Nickname of a user
 137          * @return bool
 138          */
 139         function isIP( $name ) {
 140                 return preg_match("/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/",$name);
 141                 /*return preg_match("/^
 142                         (?:[01]?\d{1,2}|2(:?[0-4]\d|5[0-5]))\.
 143                         (?:[01]?\d{1,2}|2(:?[0-4]\d|5[0-5]))\.
 144                         (?:[01]?\d{1,2}|2(:?[0-4]\d|5[0-5]))\.
 145                         (?:[01]?\d{1,2}|2(:?[0-4]\d|5[0-5]))
 146                 $/x", $name);*/
 147         }
 148
 149         /**
 150          * does the string match roughly an email address ?
 151          *
 152          * @bug 959
 153          *
 154          * @param string $addr email address
 155          * @static
 156          * @return bool
 157          */
 158         function isValidEmailAddr ( $addr ) {
 159                 # There used to be a regular expression here, it got removed because it
 160                 # rejected valid addresses.
 161                 return ( trim( $addr ) != '' ) &&
 162                         (false !== strpos( $addr, '@' ) );
 163         }
 164
 165         /**
 166          * probably return a random password
 167          * @return string probably a random password
 168          * @static
 169          * @todo Check what is doing really [AV]
 170          */
 171         function randomPassword() {
 172                 $pwchars = 'ABCDEFGHJKLMNPQRSTUVWXYZabcdefghjkmnpqrstuvwxyz';
 173                 $l = strlen( $pwchars ) - 1;
 174
 175                 $np = $pwchars{mt_rand( 0, $l )} . $pwchars{mt_rand( 0, $l )} .
 176                   $pwchars{mt_rand( 0, $l )} . chr( mt_rand(48, 57) ) .
 177                   $pwchars{mt_rand( 0, $l )} . $pwchars{mt_rand( 0, $l )} .
 178                   $pwchars{mt_rand( 0, $l )};
 179                 return $np;
 180         }
 181
 182         /**
 183          * Set properties to default
 184          * Used at construction. It will load per language default settings only
 185          * if we have an available language object.
 186          */
 187         function loadDefaults() {
 188                 static $n=0;
 189                 $n++;
 190                 $fname = 'User::loadDefaults' . $n;
 191                 wfProfileIn( $fname );
 192
 193                 global $wgContLang, $wgIP, $wgDBname;
 194                 global $wgNamespacesToBeSearchedDefault;
 195
 196                 $this->mId = 0;
 197                 $this->mNewtalk = -1;
 198                 $this->mName = $wgIP;
 199                 $this->mRealName = $this->mEmail = '';
 200                 $this->mEmailAuthenticated = null;
 201                 $this->mPassword = $this->mNewpassword = '';
 202                 $this->mRights = array();
 203                 $this->mGroups = array();
 204                 $this->mOptions = User::getDefaultOptions();
 205
 206                 foreach( $wgNamespacesToBeSearchedDefault as $nsnum => $val ) {
 207                         $this->mOptions['searchNs'.$nsnum] = $val;
 208                 }
 209                 unset( $this->mSkin );
 210                 $this->mDataLoaded = false;
 211                 $this->mBlockedby = -1; # Unset
 212                 $this->setToken(); # Random
 213                 $this->mHash = false;
 214
 215                 if ( isset( $_COOKIE[$wgDBname.'LoggedOut'] ) ) {
 216                         $this->mTouched = wfTimestamp( TS_MW, $_COOKIE[$wgDBname.'LoggedOut'] );
 217                 }
 218                 else {
 219                         $this->mTouched = '0'; # Allow any pages to be cached
 220                 }
 221
 222                 wfProfileOut( $fname );
 223         }
 224
 225         /**
 226          * Combine the language default options with any site-specific options
 227          * and add the default language variants.
 228          *
 229          * @return array
 230          * @static
 231          * @access private
 232          */
 233         function getDefaultOptions() {
 234                 /**
 235                  * Site defaults will override the global/language defaults
 236                  */
 237                 global $wgContLang, $wgDefaultUserOptions;
 238                 $defOpt = $wgDefaultUserOptions + $wgContLang->getDefaultUserOptions();
 239
 240                 /**
 241                  * default language setting
 242                  */
 243                 $variant = $wgContLang->getPreferredVariant();
 244                 $defOpt['variant'] = $variant;
 245                 $defOpt['language'] = $variant;
 246
 247                 return $defOpt;
 248         }
 249
 250         /**
 251          * Get a given default option value.
 252          *
 253          * @param string $opt
 254          * @return string
 255          * @static
 256          * @access public
 257          */
 258         function getDefaultOption( $opt ) {
 259                 $defOpts = User::getDefaultOptions();
 260                 if( isset( $defOpts[$opt] ) ) {
 261                         return $defOpts[$opt];
 262                 } else {
 263                         return '';
 264                 }
 265         }
 266
 267         /**
 268          * Get blocking information
 269          * @access private
 270          * @param bool $bFromSlave Specify whether to check slave or master. To improve performance,
 271          *  non-critical checks are done against slaves. Check when actually saving should be done against
 272          *  master.
 273          *
 274          * Note that even if $bFromSlave is false, the check is done first against slave, then master.
 275          * The logic is that if blocked on slave, we'll assume it's either blocked on master or
 276          * just slightly outta sync and soon corrected - safer to block slightly more that less.
 277          * And it's cheaper to check slave first, then master if needed, than master always.
 278          */
 279         function getBlockedStatus( $bFromSlave = true ) {
 280                 global $wgIP, $wgBlockCache, $wgProxyList, $wgEnableSorbs, $wgProxyWhitelist;
 281
 282                 if ( -1 != $this->mBlockedby ) { return; }
 283
 284                 $this->mBlockedby = 0;
 285
 286                 # User blocking
 287                 if ( $this->mId ) {
 288                         $block = new Block();
 289                         $block->forUpdate( $bFromSlave );
 290                         if ( $block->load( $wgIP , $this->mId ) ) {
 291                                 $this->mBlockedby = $block->mBy;
 292                                 $this->mBlockreason = $block->mReason;
 293                                 $this->spreadBlock();
 294                         }
 295                 }
 296
 297                 # IP/range blocking
 298                 if ( !$this->mBlockedby ) {
 299                         # Check first against slave, and optionally from master.
 300                         $block = $wgBlockCache->get( $wgIP, true );
 301                         if ( !$block && !$bFromSlave )
 302                                 {
 303                                 # Not blocked: check against master, to make sure.
 304                                 $wgBlockCache->clearLocal( );
 305                                 $block = $wgBlockCache->get( $wgIP, false );
 306                                 }
 307                         if ( $block !== false ) {
 308                                 $this->mBlockedby = $block->mBy;
 309                                 $this->mBlockreason = $block->mReason;
 310                         }
 311                 }
 312
 313                 # Proxy blocking
 314                 if ( !$this->isSysop() && !in_array( $wgIP, $wgProxyWhitelist ) ) {
 315
 316                         # Local list
 317                         if ( array_key_exists( $wgIP, $wgProxyList ) ) {
 318                                 $this->mBlockedby = wfMsg( 'proxyblocker' );
 319                                 $this->mBlockreason = wfMsg( 'proxyblockreason' );
 320                         }
 321
 322                         # DNSBL
 323                         if ( !$this->mBlockedby && $wgEnableSorbs ) {
 324                                 if ( $this->inSorbsBlacklist( $wgIP ) ) {
 325                                         $this->mBlockedby = wfMsg( 'sorbs' );
 326                                         $this->mBlockreason = wfMsg( 'sorbsreason' );
 327                                 }
 328                         }
 329                 }
 330         }
 331
 332         function inSorbsBlacklist( $ip ) {
 333                 global $wgEnableSorbs;
 334                 return $wgEnableSorbs &&
 335                         $this->inDnsBlacklist( $ip, 'http.dnsbl.sorbs.net.' );
 336         }
 337
 338         function inOpmBlacklist( $ip ) {
 339                 global $wgEnableOpm;
 340                 return $wgEnableOpm &&
 341                         $this->inDnsBlacklist( $ip, 'opm.blitzed.org.' );
 342         }
 343
 344         function inDnsBlacklist( $ip, $base ) {
 345                 $fname = 'User::inDnsBlacklist';
 346                 wfProfileIn( $fname );
 347
 348                 $found = false;
 349                 $host = '';
 350
 351                 if ( preg_match( '/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/', $ip, $m ) ) {
 352                         # Make hostname
 353                         for ( $i=4; $i>=1; $i-- ) {
 354                                 $host .= $m[$i] . '.';
 355                         }
 356                         $host .= $base;
 357
 358                         # Send query
 359                         $ipList = gethostbynamel( $host );
 360
 361                         if ( $ipList ) {
 362                                 wfDebug( "Hostname $host is {$ipList[0]}, it's a proxy says $base!\n" );
 363                                 $found = true;
 364                         } else {
 365                                 wfDebug( "Requested $host, not found in $base.\n" );
 366                         }
 367                 }
 368
 369                 wfProfileOut( $fname );
 370                 return $found;
 371         }
 372
 373         /**
 374          * Primitive rate limits: enforce maximum actions per time period
 375          * to put a brake on flooding.
 376          *
 377          * Note: when using a shared cache like memcached, IP-address
 378          * last-hit counters will be shared across wikis.
 379          *
 380          * @return bool true if a rate limiter was tripped
 381          * @access public
 382          */
 383         function pingLimiter( $action='edit' ) {
 384                 global $wgRateLimits;
 385                 if( !isset( $wgRateLimits[$action] ) ) {
 386                         return false;
 387                 }
 388                 if( $this->isAllowed( 'delete' ) ) {
 389                         // goddam cabal
 390                         return false;
 391                 }
 392
 393                 global $wgMemc, $wgIP, $wgDBname, $wgRateLimitLog;
 394                 $fname = 'User::pingLimiter';
 395                 $limits = $wgRateLimits[$action];
 396                 $keys = array();
 397                 $id = $this->getId();
 398
 399                 if( isset( $limits['anon'] ) && $id == 0 ) {
 400                         $keys["$wgDBname:limiter:$action:anon"] = $limits['anon'];
 401                 }
 402
 403                 if( isset( $limits['user'] ) && $id != 0 ) {
 404                         $keys["$wgDBname:limiter:$action:user:$id"] = $limits['user'];
 405                 }
 406                 if( $this->isNewbie() ) {
 407                         if( isset( $limits['newbie'] ) && $id != 0 ) {
 408                                 $keys["$wgDBname:limiter:$action:user:$id"] = $limits['newbie'];
 409                         }
 410                         if( isset( $limits['ip'] ) ) {
 411                                 $keys["mediawiki:limiter:$action:ip:$wgIP"] = $limits['ip'];
 412                         }
 413                         if( isset( $limits['subnet'] ) && preg_match( '/^(\d+\.\d+\.\d+)\.\d+$/', $wgIP, $matches ) ) {
 414                                 $subnet = $matches[1];
 415                                 $keys["mediawiki:limiter:$action:subnet:$subnet"] = $limits['subnet'];
 416                         }
 417                 }
 418
 419                 $triggered = false;
 420                 foreach( $keys as $key => $limit ) {
 421                         list( $max, $period ) = $limit;
 422                         $summary = "(limit $max in {$period}s)";
 423                         $count = $wgMemc->get( $key );
 424                         if( $count ) {
 425                                 if( $count > $max ) {
 426                                         wfDebug( "$fname: tripped! $key at $count $summary\n" );
 427                                         if( $wgRateLimitLog ) {
 428                                                 @error_log( wfTimestamp( TS_MW ) . ' ' . $wgDBname . ': ' . $this->getName() . " tripped $key at $count $summary\n", 3, $wgRateLimitLog );
 429                                         }
 430                                         $triggered = true;
 431                                 } else {
 432                                         wfDebug( "$fname: ok. $key at $count $summary\n" );
 433                                 }
 434                         } else {
 435                                 wfDebug( "$fname: adding record for $key $summary\n" );
 436                                 $wgMemc->add( $key, 1, IntVal( $period ) );
 437                         }
 438                         $wgMemc->incr( $key );
 439                 }
 440
 441                 return $triggered;
 442         }
 443
 444         /**
 445          * Check if user is blocked
 446          * @return bool True if blocked, false otherwise
 447          */
 448         function isBlocked( $bFromSlave = false ) {
 449                 $this->getBlockedStatus( $bFromSlave );
 450                 return $this->mBlockedby !== 0;
 451         }
 452
 453         /**
 454          * Get name of blocker
 455          * @return string name of blocker
 456          */
 457         function blockedBy() {
 458                 $this->getBlockedStatus();
 459                 return $this->mBlockedby;
 460         }
 461
 462         /**
 463          * Get blocking reason
 464          * @return string Blocking reason
 465          */
 466         function blockedFor() {
 467                 $this->getBlockedStatus();
 468                 return $this->mBlockreason;
 469         }
 470
 471         /**
 472          * Initialise php session
 473          */
 474         function SetupSession() {
 475                 global $wgSessionsInMemcached, $wgCookiePath, $wgCookieDomain;
 476                 if( $wgSessionsInMemcached ) {
 477                         require_once( 'MemcachedSessions.php' );
 478                 } elseif( 'files' != ini_get( 'session.save_handler' ) ) {
 479                         # If it's left on 'user' or another setting from another
 480                         # application, it will end up failing. Try to recover.
 481                         ini_set ( 'session.save_handler', 'files' );
 482                 }
 483                 session_set_cookie_params( 0, $wgCookiePath, $wgCookieDomain );
 484                 session_cache_limiter( 'private, must-revalidate' );
 485                 @session_start();
 486         }
 487
 488         /**
 489          * Read datas from session
 490          * @static
 491          */
 492         function loadFromSession() {
 493                 global $wgMemc, $wgDBname;
 494
 495                 if ( isset( $_SESSION['wsUserID'] ) ) {
 496                         if ( 0 != $_SESSION['wsUserID'] ) {
 497                                 $sId = $_SESSION['wsUserID'];
 498                         } else {
 499                                 return new User();
 500                         }
 501                 } else if ( isset( $_COOKIE["{$wgDBname}UserID"] ) ) {
 502                         $sId = IntVal( $_COOKIE["{$wgDBname}UserID"] );
 503                         $_SESSION['wsUserID'] = $sId;
 504                 } else {
 505                         return new User();
 506                 }
 507                 if ( isset( $_SESSION['wsUserName'] ) ) {
 508                         $sName = $_SESSION['wsUserName'];
 509                 } else if ( isset( $_COOKIE["{$wgDBname}UserName"] ) ) {
 510                         $sName = $_COOKIE["{$wgDBname}UserName"];
 511                         $_SESSION['wsUserName'] = $sName;
 512                 } else {
 513                         return new User();
 514                 }
 515
 516                 $passwordCorrect = FALSE;
 517                 $user = $wgMemc->get( $key = "$wgDBname:user:id:$sId" );
 518                 if($makenew = !$user) {
 519                         wfDebug( "User::loadFromSession() unable to load from memcached\n" );
 520                         $user = new User();
 521                         $user->mId = $sId;
 522                         $user->loadFromDatabase();
 523                 } else {
 524                         wfDebug( "User::loadFromSession() got from cache!\n" );
 525                 }
 526
 527                 if ( isset( $_SESSION['wsToken'] ) ) {
 528                         $passwordCorrect = $_SESSION['wsToken'] == $user->mToken;
 529                 } else if ( isset( $_COOKIE["{$wgDBname}Token"] ) ) {
 530                         $passwordCorrect = $user->mToken == $_COOKIE["{$wgDBname}Token"];
 531                 } else {
 532                         return new User(); # Can't log in from session
 533                 }
 534
 535                 if ( ( $sName == $user->mName ) && $passwordCorrect ) {
 536                         if($makenew) {
 537                                 if($wgMemc->set( $key, $user ))
 538                                         wfDebug( "User::loadFromSession() successfully saved user\n" );
 539                                 else
 540                                         wfDebug( "User::loadFromSession() unable to save to memcached\n" );
 541                         }
 542                         return $user;
 543                 }
 544                 return new User(); # Can't log in from session
 545         }
 546
 547         /**
 548          * Load a user from the database
 549          */
 550         function loadFromDatabase() {
 551                 global $wgCommandLineMode;
 552                 $fname = "User::loadFromDatabase";
 553
 554                 # Counter-intuitive, breaks various things, use User::setLoaded() if you want to suppress
 555                 # loading in a command line script, don't assume all command line scripts need it like this
 556                 #if ( $this->mDataLoaded || $wgCommandLineMode ) {
 557                 if ( $this->mDataLoaded ) {
 558                         return;
 559                 }
 560
 561                 # Paranoia
 562                 $this->mId = IntVal( $this->mId );
 563
 564                 /** Anonymous user */
 565                 if( !$this->mId ) {
 566                         /** Get rights */
 567                         $this->mRights = $this->getGroupPermissions( array( '*' ) );
 568                         $this->mDataLoaded = true;
 569                         return;
 570                 } # the following stuff is for non-anonymous users only
 571
 572                 $dbr =& wfGetDB( DB_SLAVE );
 573                 $s = $dbr->selectRow( 'user', array( 'user_name','user_password','user_newpassword','user_email',
 574                   'user_email_authenticated',
 575                   'user_real_name','user_options','user_touched', 'user_token' ),
 576                   array( 'user_id' => $this->mId ), $fname );
 577
 578                 if ( $s !== false ) {
 579                         $this->mName = $s->user_name;
 580                         $this->mEmail = $s->user_email;
 581                         $this->mEmailAuthenticated = wfTimestampOrNull( TS_MW, $s->user_email_authenticated );
 582                         $this->mRealName = $s->user_real_name;
 583                         $this->mPassword = $s->user_password;
 584                         $this->mNewpassword = $s->user_newpassword;
 585                         $this->decodeOptions( $s->user_options );
 586                         $this->mTouched = wfTimestamp(TS_MW,$s->user_touched);
 587                         $this->mToken = $s->user_token;
 588
 589                         $res = $dbr->select( 'user_groups',
 590                                 array( 'ug_group' ),
 591                                 array( 'ug_user' => $this->mId ),
 592                                 $fname );
 593                         $this->mGroups = array();
 594                         while( $row = $dbr->fetchObject( $res ) ) {
 595                                 $this->mGroups[] = $row->ug_group;
 596                         }
 597                         $effectiveGroups = array_merge( array( '*', 'user' ), $this->mGroups );
 598                         $this->mRights = $this->getGroupPermissions( $effectiveGroups );
 599                 }
 600
 601                 $this->mDataLoaded = true;
 602         }
 603
 604         function getID() { return $this->mId; }
 605         function setID( $v ) {
 606                 $this->mId = $v;
 607                 $this->mDataLoaded = false;
 608         }
 609
 610         function getName() {
 611                 $this->loadFromDatabase();
 612                 return $this->mName;
 613         }
 614
 615         function setName( $str ) {
 616                 $this->loadFromDatabase();
 617                 $this->mName = $str;
 618         }
 619
 620
 621         /**
 622          * Return the title dbkey form of the name, for eg user pages.
 623          * @return string
 624          * @access public
 625          */
 626         function getTitleKey() {
 627                 return str_replace( ' ', '_', $this->getName() );
 628         }
 629
 630         function getNewtalk() {
 631                 $fname = 'User::getNewtalk';
 632                 $this->loadFromDatabase();
 633
 634                 # Load the newtalk status if it is unloaded (mNewtalk=-1)
 635                 if( $this->mNewtalk == -1 ) {
 636                         $this->mNewtalk = 0; # reset talk page status
 637
 638                         # Check memcached separately for anons, who have no
 639                         # entire User object stored in there.
 640                         if( !$this->mId ) {
 641                                 global $wgDBname, $wgMemc;
 642                                 $key = "$wgDBname:newtalk:ip:{$this->mName}";
 643                                 $newtalk = $wgMemc->get( $key );
 644                                 if( is_integer( $newtalk ) ) {
 645                                         $this->mNewtalk = $newtalk ? 1 : 0;
 646                                         return (bool)$this->mNewtalk;
 647                                 }
 648                         }
 649
 650                         $dbr =& wfGetDB( DB_SLAVE );
 651                         $res = $dbr->select( 'watchlist',
 652                                 array( 'wl_user' ),
 653                                 array( 'wl_title'     => $this->getTitleKey(),
 654                                            'wl_namespace' => NS_USER_TALK,
 655                                            'wl_user'      => $this->mId,
 656                                            'wl_notificationtimestamp != 0' ),
 657                                 'User::getNewtalk' );
 658                         if( $dbr->numRows($res) > 0 ) {
 659                                 $this->mNewtalk = 1;
 660                         }
 661                         $dbr->freeResult( $res );
 662
 663                         if( !$this->mId ) {
 664                                 $wgMemc->set( $key, $this->mNewtalk, time() ); // + 1800 );
 665                         }
 666                 }
 667
 668                 return ( 0 != $this->mNewtalk );
 669         }
 670
 671         function setNewtalk( $val ) {
 672                 $this->loadFromDatabase();
 673                 $this->mNewtalk = $val;
 674                 $this->invalidateCache();
 675         }
 676
 677         function invalidateCache() {
 678                 global $wgClockSkewFudge;
 679                 $this->loadFromDatabase();
 680                 $this->mTouched = wfTimestamp(TS_MW, time() + $wgClockSkewFudge );
 681                 # Don't forget to save the options after this or
 682                 # it won't take effect!
 683         }
 684
 685         function validateCache( $timestamp ) {
 686                 $this->loadFromDatabase();
 687                 return ($timestamp >= $this->mTouched);
 688         }
 689
 690         /**
 691          * Salt a password.
 692          * Will only be salted if $wgPasswordSalt is true
 693          * @param string Password.
 694          * @return string Salted password or clear password.
 695          */
 696         function addSalt( $p ) {
 697                 global $wgPasswordSalt;
 698                 if($wgPasswordSalt)
 699                         return md5( "{$this->mId}-{$p}" );
 700                 else
 701                         return $p;
 702         }
 703
 704         /**
 705          * Encrypt a password.
 706          * It can eventuall salt a password @see User::addSalt()
 707          * @param string $p clear Password.
 708          * @param string Encrypted password.
 709          */
 710         function encryptPassword( $p ) {
 711                 return $this->addSalt( md5( $p ) );
 712         }
 713
 714         # Set the password and reset the random token
 715         function setPassword( $str ) {
 716                 $this->loadFromDatabase();
 717                 $this->setToken();
 718                 $this->mPassword = $this->encryptPassword( $str );
 719                 $this->mNewpassword = '';
 720         }
 721
 722         # Set the random token (used for persistent authentication)
 723         function setToken( $token = false ) {
 724                 global $wgSecretKey, $wgProxyKey, $wgDBname;
 725                 if ( !$token ) {
 726                         if ( $wgSecretKey ) {
 727                                 $key = $wgSecretKey;
 728                         } elseif ( $wgProxyKey ) {
 729                                 $key = $wgProxyKey;
 730                         } else {
 731                                 $key = microtime();
 732                         }
 733                         $this->mToken = md5( $wgSecretKey . mt_rand( 0, 0x7fffffff ) . $wgDBname . $this->mId );
 734                 } else {
 735                         $this->mToken = $token;
 736                 }
 737         }
 738
 739
 740         function setCookiePassword( $str ) {
 741                 $this->loadFromDatabase();
 742                 $this->mCookiePassword = md5( $str );
 743         }
 744
 745         function setNewpassword( $str ) {
 746                 $this->loadFromDatabase();
 747                 $this->mNewpassword = $this->encryptPassword( $str );
 748         }
 749
 750         function getEmail() {
 751                 $this->loadFromDatabase();
 752                 return $this->mEmail;
 753         }
 754
 755         function getEmailAuthenticationTimestamp() {
 756                 $this->loadFromDatabase();
 757                 return $this->mEmailAuthenticated;
 758         }
 759
 760         function setEmail( $str ) {
 761                 $this->loadFromDatabase();
 762                 $this->mEmail = $str;
 763         }
 764
 765         function getRealName() {
 766                 $this->loadFromDatabase();
 767                 return $this->mRealName;
 768         }
 769
 770         function setRealName( $str ) {
 771                 $this->loadFromDatabase();
 772                 $this->mRealName = $str;
 773         }
 774
 775         function getOption( $oname ) {
 776                 $this->loadFromDatabase();
 777                 if ( array_key_exists( $oname, $this->mOptions ) ) {
 778                         return $this->mOptions[$oname];
 779                 } else {
 780                         return '';
 781                 }
 782         }
 783
 784         function setOption( $oname, $val ) {
 785                 $this->loadFromDatabase();
 786                 if ( $oname == 'skin' ) {
 787                         # Clear cached skin, so the new one displays immediately in Special:Preferences
 788                         unset( $this->mSkin );
 789                 }
 790                 $this->mOptions[$oname] = $val;
 791                 $this->invalidateCache();
 792         }
 793
 794         function getRights() {
 795                 $this->loadFromDatabase();
 796                 return $this->mRights;
 797         }
 798
 799         /**
 800          * Get the list of explicit group memberships this user has.
 801          * The implicit * and user groups are not included.
 802          * @return array of strings
 803          */
 804         function getGroups() {
 805                 $this->loadFromDatabase();
 806                 return $this->mGroups;
 807         }
 808
 809         /**
 810          * Get the list of implicit group memberships this user has.
 811          * This includes all explicit groups, plus 'user' if logged in
 812          * and '*' for all accounts.
 813          * @return array of strings
 814          */
 815         function getEffectiveGroups() {
 816                 $base = array( '*' );
 817                 if( $this->isLoggedIn() ) {
 818                         $base[] = 'user';
 819                 }
 820                 return array_merge( $base, $this->getGroups() );
 821         }
 822
 823         /**
 824          * Remove the user from the given group.
 825          * This takes immediate effect.
 826          * @string $group
 827          */
 828         function addGroup( $group ) {
 829                 $dbw =& wfGetDB( DB_MASTER );
 830                 $dbw->insert( 'user_groups',
 831                         array(
 832                                 'ug_user'  => $this->getID(),
 833                                 'ug_group' => $group,
 834                         ),
 835                         'User::addGroup',
 836                         array( 'IGNORE' ) );
 837
 838                 $this->mGroups = array_merge( $this->mGroups, array( $group ) );
 839                 $this->mRights = User::getGroupPermissions( $this->getEffectiveGroups() );
 840
 841                 $this->invalidateCache();
 842                 $this->saveSettings();
 843         }
 844
 845         /**
 846          * Remove the user from the given group.
 847          * This takes immediate effect.
 848          * @string $group
 849          */
 850         function removeGroup( $group ) {
 851                 $dbw =& wfGetDB( DB_MASTER );
 852                 $dbw->delete( 'user_groups',
 853                         array(
 854                                 'ug_user'  => $this->getID(),
 855                                 'ug_group' => $group,
 856                         ),
 857                         'User::removeGroup' );
 858
 859                 $this->mGroups = array_diff( $this->mGroups, array( $group ) );
 860                 $this->mRights = User::getGroupPermissions( $this->getEffectiveGroups() );
 861
 862                 $this->invalidateCache();
 863                 $this->saveSettings();
 864         }
 865
 866
 867         /**
 868          * A more legible check for non-anonymousness.
 869          * Returns true if the user is not an anonymous visitor.
 870          *
 871          * @return bool
 872          */
 873         function isLoggedIn() {
 874                 return( $this->getID() != 0 );
 875         }
 876
 877         /**
 878          * A more legible check for anonymousness.
 879          * Returns true if the user is an anonymous visitor.
 880          *
 881          * @return bool
 882          */
 883         function isAnon() {
 884                 return !$this->isLoggedIn();
 885         }
 886
 887         /**
 888          * Check if a user is sysop
 889          * Die with backtrace. Use User:isAllowed() instead.
 890          * @deprecated
 891          */
 892         function isSysop() {
 893                 return $this->isAllowed( 'protect' );
 894         }
 895
 896         /** @deprecated */
 897         function isDeveloper() {
 898                 return $this->isAllowed( 'siteadmin' );
 899         }
 900
 901         /** @deprecated */
 902         function isBureaucrat() {
 903                 return $this->isAllowed( 'makesysop' );
 904         }
 905
 906         /**
 907          * Whether the user is a bot
 908          * @todo need to be migrated to the new user level management sytem
 909          */
 910         function isBot() {
 911                 $this->loadFromDatabase();
 912                 return in_array( 'bot', $this->mRights );
 913         }
 914
 915         /**
 916          * Check if user is allowed to access a feature / make an action
 917          * @param string $action Action to be checked (see $wgAvailableRights in Defines.php for possible actions).
 918          * @return boolean True: action is allowed, False: action should not be allowed
 919          */
 920         function isAllowed($action='') {
 921                 $this->loadFromDatabase();
 922                 return in_array( $action , $this->mRights );
 923         }
 924
 925         /**
 926          * Load a skin if it doesn't exist or return it
 927          * @todo FIXME : need to check the old failback system [AV]
 928          */
 929         function &getSkin() {
 930                 global $IP;
 931                 if ( ! isset( $this->mSkin ) ) {
 932                         $fname = 'User::getSkin';
 933                         wfProfileIn( $fname );
 934
 935                         # get all skin names available
 936                         $skinNames = Skin::getSkinNames();
 937
 938                         # get the user skin
 939                         $userSkin = $this->getOption( 'skin' );
 940                         if ( $userSkin == '' ) { $userSkin = 'standard'; }
 941
 942                         if ( !isset( $skinNames[$userSkin] ) ) {
 943                                 # in case the user skin could not be found find a replacement
 944                                 $fallback = array(
 945                                         0 => 'Standard',
 946                                         1 => 'Nostalgia',
 947                                         2 => 'CologneBlue');
 948                                 # if phptal is enabled we should have monobook skin that
 949                                 # superseed the good old SkinStandard.
 950                                 if ( isset( $skinNames['monobook'] ) ) {
 951                                         $fallback[0] = 'MonoBook';
 952                                 }
 953
 954                                 if(is_numeric($userSkin) && isset( $fallback[$userSkin]) ){
 955                                         $sn = $fallback[$userSkin];
 956                                 } else {
 957                                         $sn = 'Standard';
 958                                 }
 959                         } else {
 960                                 # The user skin is available
 961                                 $sn = $skinNames[$userSkin];
 962                         }
 963
 964                         # Grab the skin class and initialise it. Each skin checks for PHPTal
 965                         # and will not load if it's not enabled.
 966                         require_once( $IP.'/skins/'.$sn.'.php' );
 967
 968                         # Check if we got if not failback to default skin
 969                         $className = 'Skin'.$sn;
 970                         if( !class_exists( $className ) ) {
 971                                 # DO NOT die if the class isn't found. This breaks maintenance
 972                                 # scripts and can cause a user account to be unrecoverable
 973                                 # except by SQL manipulation if a previously valid skin name
 974                                 # is no longer valid.
 975                                 $className = 'SkinStandard';
 976                                 require_once( $IP.'/skins/Standard.php' );
 977                         }
 978                         $this->mSkin =& new $className;
 979                         wfProfileOut( $fname );
 980                 }
 981                 return $this->mSkin;
 982         }
 983
 984         /**#@+
 985          * @param string $title Article title to look at
 986          */
 987
 988         /**
 989          * Check watched status of an article
 990          * @return bool True if article is watched
 991          */
 992         function isWatched( $title ) {
 993                 $wl = WatchedItem::fromUserTitle( $this, $title );
 994                 return $wl->isWatched();
 995         }
 996
 997         /**
 998          * Watch an article
 999          */
1000         function addWatch( $title ) {
1001                 $wl = WatchedItem::fromUserTitle( $this, $title );
1002                 $wl->addWatch();
1003                 $this->invalidateCache();
1004         }
1005
1006         /**
1007          * Stop watching an article
1008          */
1009         function removeWatch( $title ) {
1010                 $wl = WatchedItem::fromUserTitle( $this, $title );
1011                 $wl->removeWatch();
1012                 $this->invalidateCache();
1013         }
1014
1015         /**
1016          * Clear the user's notification timestamp for the given title.
1017          * If e-notif e-mails are on, they will receive notification mails on
1018          * the next change of the page if it's watched etc.
1019          */
1020         function clearNotification( &$title ) {
1021                 global $wgUser;
1022
1023                 $userid = $this->getID();
1024                 if ($userid==0)
1025                         return;
1026
1027                 // Only update the timestamp if the page is being watched.
1028                 // The query to find out if it is watched is cached both in memcached and per-invocation,
1029                 // and when it does have to be executed, it can be on a slave
1030                 // If this is the user's newtalk page, we always update the timestamp
1031                 if ($title->getNamespace() == NS_USER_TALK &&
1032                         $title->getText() == $wgUser->getName())
1033                 {
1034                         $watched = true;
1035                 } elseif ( $this->getID() == $wgUser->getID() ) {
1036                         $watched = $title->userIsWatching();
1037                 } else {
1038                         $watched = true;
1039                 }
1040
1041                 // If the page is watched by the user (or may be watched), update the timestamp on any
1042                 // any matching rows
1043                 if ( $watched ) {
1044                         $dbw =& wfGetDB( DB_MASTER );
1045                         $success = $dbw->update( 'watchlist',
1046                                         array( /* SET */
1047                                                 'wl_notificationtimestamp' => 0
1048                                         ), array( /* WHERE */
1049                                                 'wl_title' => $title->getDBkey(),
1050                                                 'wl_namespace' => $title->getNamespace(),
1051                                                 'wl_user' => $this->getID()
1052                                         ), 'User::clearLastVisited'
1053                         );
1054                 }
1055         }
1056
1057         /**#@-*/
1058
1059         /**
1060          * Resets all of the given user's page-change notification timestamps.
1061          * If e-notif e-mails are on, they will receive notification mails on
1062          * the next change of any watched page.
1063          *
1064          * @param int $currentUser user ID number
1065          * @access public
1066          */
1067         function clearAllNotifications( $currentUser ) {
1068                 if( $currentUser != 0 )  {
1069
1070                         $dbw =& wfGetDB( DB_MASTER );
1071                         $success = $dbw->update( 'watchlist',
1072                                 array( /* SET */
1073                                         'wl_notificationtimestamp' => 0
1074                                 ), array( /* WHERE */
1075                                         'wl_user' => $currentUser
1076                                 ), 'UserMailer::clearAll'
1077                         );
1078
1079                 #       we also need to clear here the "you have new message" notification for the own user_talk page
1080                 #       This is cleared one page view later in Article::viewUpdates();
1081                 }
1082         }
1083
1084         /**
1085          * @access private
1086          * @return string Encoding options
1087          */
1088         function encodeOptions() {
1089                 $a = array();
1090                 foreach ( $this->mOptions as $oname => $oval ) {
1091                         array_push( $a, $oname.'='.$oval );
1092                 }
1093                 $s = implode( "\n", $a );
1094                 return $s;
1095         }
1096
1097         /**
1098          * @access private
1099          */
1100         function decodeOptions( $str ) {
1101                 $a = explode( "\n", $str );
1102                 foreach ( $a as $s ) {
1103                         if ( preg_match( "/^(.[^=]*)=(.*)$/", $s, $m ) ) {
1104                                 $this->mOptions[$m[1]] = $m[2];
1105                         }
1106                 }
1107         }
1108
1109         function setCookies() {
1110                 global $wgCookieExpiration, $wgCookiePath, $wgCookieDomain, $wgDBname;
1111                 if ( 0 == $this->mId ) return;
1112                 $this->loadFromDatabase();
1113                 $exp = time() + $wgCookieExpiration;
1114
1115                 $_SESSION['wsUserID'] = $this->mId;
1116                 setcookie( $wgDBname.'UserID', $this->mId, $exp, $wgCookiePath, $wgCookieDomain );
1117
1118                 $_SESSION['wsUserName'] = $this->mName;
1119                 setcookie( $wgDBname.'UserName', $this->mName, $exp, $wgCookiePath, $wgCookieDomain );
1120
1121                 $_SESSION['wsToken'] = $this->mToken;
1122                 if ( 1 == $this->getOption( 'rememberpassword' ) ) {
1123                         setcookie( $wgDBname.'Token', $this->mToken, $exp, $wgCookiePath, $wgCookieDomain );
1124                 } else {
1125                         setcookie( $wgDBname.'Token', '', time() - 3600 );
1126                 }
1127         }
1128
1129         /**
1130          * Logout user
1131          * It will clean the session cookie
1132          */
1133         function logout() {
1134                 global $wgCookiePath, $wgCookieDomain, $wgDBname, $wgIP;
1135                 $this->loadDefaults();
1136                 $this->setLoaded( true );
1137
1138                 $_SESSION['wsUserID'] = 0;
1139
1140                 setcookie( $wgDBname.'UserID', '', time() - 3600, $wgCookiePath, $wgCookieDomain );
1141                 setcookie( $wgDBname.'Token', '', time() - 3600, $wgCookiePath, $wgCookieDomain );
1142
1143                 # Remember when user logged out, to prevent seeing cached pages
1144                 setcookie( $wgDBname.'LoggedOut', wfTimestampNow(), time() + 86400, $wgCookiePath, $wgCookieDomain );
1145         }
1146
1147         /**
1148          * Save object settings into database
1149          */
1150         function saveSettings() {
1151                 global $wgMemc, $wgDBname;
1152                 $fname = 'User::saveSettings';
1153
1154                 $dbw =& wfGetDB( DB_MASTER );
1155                 if ( ! $this->getNewtalk() ) {
1156                         # Delete the watchlist entry for user_talk page X watched by user X
1157                         $dbw->delete( 'watchlist',
1158                                 array( 'wl_user'      => $this->mId,
1159                                            'wl_title'     => $this->getTitleKey(),
1160                                            'wl_namespace' => NS_USER_TALK ),
1161                                 $fname );
1162                         if( !$this->mId ) {
1163                                 # Anon users have a separate memcache space for newtalk
1164                                 # since they don't store their own info. Trim...
1165                                 $wgMemc->delete( "$wgDBname:newtalk:ip:{$this->mName}" );
1166                         }
1167                 }
1168
1169                 if ( 0 == $this->mId ) { return; }
1170
1171                 $dbw->update( 'user',
1172                         array( /* SET */
1173                                 'user_name' => $this->mName,
1174                                 'user_password' => $this->mPassword,
1175                                 'user_newpassword' => $this->mNewpassword,
1176                                 'user_real_name' => $this->mRealName,
1177                                 'user_email' => $this->mEmail,
1178                                 'user_email_authenticated' => $dbw->timestampOrNull( $this->mEmailAuthenticated ),
1179                                 'user_options' => $this->encodeOptions(),
1180                                 'user_touched' => $dbw->timestamp($this->mTouched),
1181                                 'user_token' => $this->mToken
1182                         ), array( /* WHERE */
1183                                 'user_id' => $this->mId
1184                         ), $fname
1185                 );
1186                 $wgMemc->delete( "$wgDBname:user:id:$this->mId" );
1187         }
1188
1189         /**
1190          * Checks if a user with the given name exists, returns the ID
1191          */
1192         function idForName() {
1193                 $fname = 'User::idForName';
1194
1195                 $gotid = 0;
1196                 $s = trim( $this->mName );
1197                 if ( 0 == strcmp( '', $s ) ) return 0;
1198
1199                 $dbr =& wfGetDB( DB_SLAVE );
1200                 $id = $dbr->selectField( 'user', 'user_id', array( 'user_name' => $s ), $fname );
1201                 if ( $id === false ) {
1202                         $id = 0;
1203                 }
1204                 return $id;
1205         }
1206
1207         /**
1208          * Add user object to the database
1209          */
1210         function addToDatabase() {
1211                 $fname = 'User::addToDatabase';
1212                 $dbw =& wfGetDB( DB_MASTER );
1213                 $seqVal = $dbw->nextSequenceValue( 'user_user_id_seq' );
1214                 $dbw->insert( 'user',
1215                         array(
1216                                 'user_id' => $seqVal,
1217                                 'user_name' => $this->mName,
1218                                 'user_password' => $this->mPassword,
1219                                 'user_newpassword' => $this->mNewpassword,
1220                                 'user_email' => $this->mEmail,
1221                                 'user_email_authenticated' => $dbw->timestampOrNull( $this->mEmailAuthenticated ),
1222                                 'user_real_name' => $this->mRealName,
1223                                 'user_options' => $this->encodeOptions(),
1224                                 'user_token' => $this->mToken
1225                         ), $fname
1226                 );
1227                 $this->mId = $dbw->insertId();
1228         }
1229
1230         function spreadBlock() {
1231                 global $wgIP;
1232                 # If the (non-anonymous) user is blocked, this function will block any IP address
1233                 # that they successfully log on from.
1234                 $fname = 'User::spreadBlock';
1235
1236                 wfDebug( "User:spreadBlock()\n" );
1237                 if ( $this->mId == 0 ) {
1238                         return;
1239                 }
1240
1241                 $userblock = Block::newFromDB( '', $this->mId );
1242                 if ( !$userblock->isValid() ) {
1243                         return;
1244                 }
1245
1246                 # Check if this IP address is already blocked
1247                 $ipblock = Block::newFromDB( $wgIP );
1248                 if ( $ipblock->isValid() ) {
1249                         # Just update the timestamp
1250                         $ipblock->updateTimestamp();
1251                         return;
1252                 }
1253
1254                 # Make a new block object with the desired properties
1255                 wfDebug( "Autoblocking {$this->mName}@{$wgIP}\n" );
1256                 $ipblock->mAddress = $wgIP;
1257                 $ipblock->mUser = 0;
1258                 $ipblock->mBy = $userblock->mBy;
1259                 $ipblock->mReason = wfMsg( 'autoblocker', $this->getName(), $userblock->mReason );
1260                 $ipblock->mTimestamp = wfTimestampNow();
1261                 $ipblock->mAuto = 1;
1262                 # If the user is already blocked with an expiry date, we don't
1263                 # want to pile on top of that!
1264                 if($userblock->mExpiry) {
1265                         $ipblock->mExpiry = min ( $userblock->mExpiry, Block::getAutoblockExpiry( $ipblock->mTimestamp ));
1266                 } else {
1267                         $ipblock->mExpiry = Block::getAutoblockExpiry( $ipblock->mTimestamp );
1268                 }
1269
1270                 # Insert it
1271                 $ipblock->insert();
1272
1273         }
1274
1275         function getPageRenderingHash() {
1276                 global $wgContLang;
1277                 if( $this->mHash ){
1278                         return $this->mHash;
1279                 }
1280
1281                 // stubthreshold is only included below for completeness,
1282                 // it will always be 0 when this function is called by parsercache.
1283
1284                 $confstr =        $this->getOption( 'math' );
1285                 $confstr .= '!' . $this->getOption( 'stubthreshold' );
1286                 $confstr .= '!' . $this->getOption( 'editsection' );
1287                 $confstr .= '!' . $this->getOption( 'date' );
1288                 $confstr .= '!' . $this->getOption( 'numberheadings' );
1289                 $confstr .= '!' . $this->getOption( 'language' );
1290                 $confstr .= '!' . $this->getOption( 'thumbsize' );
1291                 // add in language specific options, if any
1292                 $extra = $wgContLang->getExtraHashOptions();
1293                 $confstr .= $extra;
1294
1295                 $this->mHash = $confstr;
1296                 return $confstr ;
1297         }
1298
1299         function isAllowedToCreateAccount() {
1300                 return $this->isAllowed( 'createaccount' );
1301         }
1302
1303         /**
1304          * Set mDataLoaded, return previous value
1305          * Use this to prevent DB access in command-line scripts or similar situations
1306          */
1307         function setLoaded( $loaded ) {
1308                 return wfSetVar( $this->mDataLoaded, $loaded );
1309         }
1310
1311         /**
1312          * Get this user's personal page title.
1313          *
1314          * @return Title
1315          * @access public
1316          */
1317         function getUserPage() {
1318                 return Title::makeTitle( NS_USER, $this->mName );
1319         }
1320
1321         /**
1322          * Get this user's talk page title.
1323          *
1324          * @return Title
1325          * @access public
1326          */
1327         function getTalkPage() {
1328                 $title = $this->getUserPage();
1329                 return $title->getTalkPage();
1330         }
1331
1332         /**
1333          * @static
1334          */
1335         function getMaxID() {
1336                 $dbr =& wfGetDB( DB_SLAVE );
1337                 return $dbr->selectField( 'user', 'max(user_id)', false );
1338         }
1339
1340         /**
1341          * Determine whether the user is a newbie. Newbies are either
1342          * anonymous IPs, or the 1% most recently created accounts.
1343          * Bots and sysops are excluded.
1344          * @return bool True if it is a newbie.
1345          */
1346         function isNewbie() {
1347                 return $this->isAnon() || $this->mId > User::getMaxID() * 0.99 && !$this->isAllowed( 'delete' ) && !$this->isBot();
1348         }
1349
1350         /**
1351          * Check to see if the given clear-text password is one of the accepted passwords
1352          * @param string $password User password.
1353          * @return bool True if the given password is correct otherwise False.
1354          */
1355         function checkPassword( $password ) {
1356                 global $wgAuth, $wgMinimalPasswordLength;
1357                 $this->loadFromDatabase();
1358
1359                 // Even though we stop people from creating passwords that
1360                 // are shorter than this, doesn't mean people wont be able
1361                 // to. Certain authentication plugins do NOT want to save
1362                 // domain passwords in a mysql database, so we should
1363                 // check this (incase $wgAuth->strict() is false).
1364                 if( strlen( $password ) < $wgMinimalPasswordLength ) {
1365                         return false;
1366                 }
1367
1368                 if( $wgAuth->authenticate( $this->getName(), $password ) ) {
1369                         return true;
1370                 } elseif( $wgAuth->strict() ) {
1371                         /* Auth plugin doesn't allow local authentication */
1372                         return false;
1373                 }
1374                 $ep = $this->encryptPassword( $password );
1375                 if ( 0 == strcmp( $ep, $this->mPassword ) ) {
1376                         return true;
1377                 } elseif ( ($this->mNewpassword != '') && (0 == strcmp( $ep, $this->mNewpassword )) ) {
1378                         return true;
1379                 } elseif ( function_exists( 'iconv' ) ) {
1380                         # Some wikis were converted from ISO 8859-1 to UTF-8, the passwords can't be converted
1381                         # Check for this with iconv
1382                         $cp1252hash = $this->encryptPassword( iconv( 'UTF-8', 'WINDOWS-1252', $password ) );
1383                         if ( 0 == strcmp( $cp1252hash, $this->mPassword ) ) {
1384                                 return true;
1385                         }
1386                 }
1387                 return false;
1388         }
1389
1390         /**
1391          * Initialize (if necessary) and return a session token value
1392          * which can be used in edit forms to show that the user's
1393          * login credentials aren't being hijacked with a foreign form
1394          * submission.
1395          *
1396          * @param mixed $salt - Optional function-specific data for hash.
1397          *                      Use a string or an array of strings.
1398          * @return string
1399          * @access public
1400          */
1401         function editToken( $salt = '' ) {
1402                 if( !isset( $_SESSION['wsEditToken'] ) ) {
1403                         $token = $this->generateToken();
1404                         $_SESSION['wsEditToken'] = $token;
1405                 } else {
1406                         $token = $_SESSION['wsEditToken'];
1407                 }
1408                 if( is_array( $salt ) ) {
1409                         $salt = implode( '|', $salt );
1410                 }
1411                 return md5( $token . $salt );
1412         }
1413
1414         /**
1415          * Generate a hex-y looking random token for various uses.
1416          * Could be made more cryptographically sure if someone cares.
1417          * @return string
1418          */
1419         function generateToken( $salt = '' ) {
1420                 $token = dechex( mt_rand() ) . dechex( mt_rand() );
1421                 return md5( $token . $salt );
1422         }
1423
1424         /**
1425          * Check given value against the token value stored in the session.
1426          * A match should confirm that the form was submitted from the
1427          * user's own login session, not a form submission from a third-party
1428          * site.
1429          *
1430          * @param string $val - the input value to compare
1431          * @param string $salt - Optional function-specific data for hash
1432          * @return bool
1433          * @access public
1434          */
1435         function matchEditToken( $val, $salt = '' ) {
1436                 return ( $val == $this->editToken( $salt ) );
1437         }
1438
1439         /**
1440          * Generate a new e-mail confirmation token and send a confirmation
1441          * mail to the user's given address.
1442          *
1443          * @return mixed True on success, a WikiError object on failure.
1444          */
1445         function sendConfirmationMail() {
1446                 global $wgIP, $wgContLang;
1447                 $url = $this->confirmationTokenUrl( $expiration );
1448                 return $this->sendMail( wfMsg( 'confirmemail_subject' ),
1449                         wfMsg( 'confirmemail_body',
1450                                 $wgIP,
1451                                 $this->getName(),
1452                                 $url,
1453                                 $wgContLang->timeanddate( $expiration, false ) ) );
1454         }
1455
1456         /**
1457          * Send an e-mail to this user's account. Does not check for
1458          * confirmed status or validity.
1459          *
1460          * @param string $subject
1461          * @param string $body
1462          * @param strong $from Optional from address; default $wgPasswordSender will be used otherwise.
1463          * @return mixed True on success, a WikiError object on failure.
1464          */
1465         function sendMail( $subject, $body, $from = null ) {
1466                 if( is_null( $from ) ) {
1467                         global $wgPasswordSender;
1468                         $from = $wgPasswordSender;
1469                 }
1470
1471                 require_once( 'UserMailer.php' );
1472                 $error = userMailer( $this->getEmail(), $from, $subject, $body );
1473
1474                 if( $error == '' ) {
1475                         return true;
1476                 } else {
1477                         return new WikiError( $error );
1478                 }
1479         }
1480
1481         /**
1482          * Generate, store, and return a new e-mail confirmation code.
1483          * A hash (unsalted since it's used as a key) is stored.
1484          * @param &$expiration mixed output: accepts the expiration time
1485          * @return string
1486          * @access private
1487          */
1488         function confirmationToken( &$expiration ) {
1489                 $fname = 'User::confirmationToken';
1490
1491                 $now = time();
1492                 $expires = $now + 7 * 24 * 60 * 60;
1493                 $expiration = wfTimestamp( TS_MW, $expires );
1494
1495                 $token = $this->generateToken( $this->mId . $this->mEmail . $expires );
1496                 $hash = md5( $token );
1497
1498                 $dbw =& wfGetDB( DB_MASTER );
1499                 $dbw->update( 'user',
1500                         array( 'user_email_token'         => $hash,
1501                                'user_email_token_expires' => $dbw->timestamp( $expires ) ),
1502                         array( 'user_id'                  => $this->mId ),
1503                         $fname );
1504
1505                 return $token;
1506         }
1507
1508         /**
1509          * Generate and store a new e-mail confirmation token, and return
1510          * the URL the user can use to confirm.
1511          * @param &$expiration mixed output: accepts the expiration time
1512          * @return string
1513          * @access private
1514          */
1515         function confirmationTokenUrl( &$expiration ) {
1516                 $token = $this->confirmationToken( $expiration );
1517                 $title = Title::makeTitle( NS_SPECIAL, 'Confirmemail/' . $token );
1518                 return $title->getFullUrl();
1519         }
1520
1521         /**
1522          * Mark the e-mail address confirmed and save.
1523          */
1524         function confirmEmail() {
1525                 $this->loadFromDatabase();
1526                 $this->mEmailAuthenticated = wfTimestampNow();
1527                 $this->saveSettings();
1528                 return true;
1529         }
1530
1531         /**
1532          * Is this user allowed to send e-mails within limits of current
1533          * site configuration?
1534          * @return bool
1535          */
1536         function canSendEmail() {
1537                 return $this->isEmailConfirmed();
1538         }
1539
1540         /**
1541          * Is this user allowed to receive e-mails within limits of current
1542          * site configuration?
1543          * @return bool
1544          */
1545         function canReceiveEmail() {
1546                 return $this->canSendEmail() && !$this->getOption( 'disablemail' );
1547         }
1548
1549         /**
1550          * Is this user's e-mail address valid-looking and confirmed within
1551          * limits of the current site configuration?
1552          *
1553          * If $wgEmailAuthentication is on, this may require the user to have
1554          * confirmed their address by returning a code or using a password
1555          * sent to the address from the wiki.
1556          *
1557          * @return bool
1558          */
1559         function isEmailConfirmed() {
1560                 global $wgEmailAuthentication;
1561                 $this->loadFromDatabase();
1562                 if( $this->isAnon() )
1563                         return false;
1564                 if( !$this->isValidEmailAddr( $this->mEmail ) )
1565                         return false;
1566                 if( $wgEmailAuthentication && !$this->getEmailAuthenticationTimestamp() )
1567                         return false;
1568                 return true;
1569         }
1570
1571         /**
1572          * @param array $groups list of groups
1573          * @return array list of permission key names for given groups combined
1574          * @static
1575          */
1576         function getGroupPermissions( $groups ) {
1577                 global $wgGroupPermissions;
1578                 $rights = array();
1579                 foreach( $groups as $group ) {
1580                         if( isset( $wgGroupPermissions[$group] ) ) {
1581                                 $rights = array_merge( $rights, $wgGroupPermissions[$group] );
1582                         }
1583                 }
1584                 return $rights;
1585         }
1586
1587         /**
1588          * @param string $group key name
1589          * @return string localized descriptive name, if provided
1590          * @static
1591          */
1592         function getGroupName( $group ) {
1593                 $key = "group-$group-name";
1594                 $name = wfMsg( $key );
1595                 if( $name == '' || $name == "&lt;$key&gt;" ) {
1596                         return $group;
1597                 } else {
1598                         return $name;
1599                 }
1600         }
1601
1602         /**
1603          * Return the set of defined explicit groups.
1604          * The * and 'user' groups are not included.
1605          * @return array
1606          * @static
1607          */
1608         function getAllGroups() {
1609                 global $wgGroupPermissions;
1610                 return array_diff(
1611                         array_keys( $wgGroupPermissions ),
1612                         array( '*', 'user' ) );
1613         }
1614
1615 }
1616
1617 ?>