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 # Serialized record version
  17 define( 'MW_USER_VERSION', 2 );
  18
  19 /**
  20  *
  21  * @package MediaWiki
  22  */
  23 class User {
  24         /**#@+
  25          * @access private
  26          */
  27         var $mId, $mName, $mPassword, $mEmail, $mNewtalk;
  28         var $mEmailAuthenticated;
  29         var $mRights, $mOptions;
  30         var $mDataLoaded, $mNewpassword;
  31         var $mSkin;
  32         var $mBlockedby, $mBlockreason;
  33         var $mTouched;
  34         var $mToken;
  35         var $mRealName;
  36         var $mHash;
  37         var $mGroups;
  38         var $mVersion; // serialized version
  39
  40         /** Construct using User:loadDefaults() */
  41         function User() {
  42                 $this->loadDefaults();
  43                 $this->mVersion = MW_USER_VERSION;
  44         }
  45
  46         /**
  47          * Static factory method
  48          * @param string $name Username, validated by Title:newFromText()
  49          * @return User
  50          * @static
  51          */
  52         function newFromName( $name ) {
  53                 $u = new User();
  54
  55                 # Force usernames to capital
  56                 global $wgContLang;
  57                 $name = $wgContLang->ucfirst( $name );
  58
  59                 # Clean up name according to title rules
  60                 $t = Title::newFromText( $name );
  61                 if( is_null( $t ) ) {
  62                         return null;
  63                 }
  64
  65                 # Reject various classes of invalid names
  66                 $canonicalName = $t->getText();
  67                 if( !User::isValidUserName( $canonicalName ) ) {
  68                         return null;
  69                 }
  70
  71                 $u->setName( $canonicalName );
  72                 $u->setId( $u->idFromName( $t->getText() ) );
  73                 return $u;
  74         }
  75
  76         /**
  77          * Factory method to fetch whichever use has a given email confirmation code.
  78          * This code is generated when an account is created or its e-mail address
  79          * has changed.
  80          *
  81          * If the code is invalid or has expired, returns NULL.
  82          *
  83          * @param string $code
  84          * @return User
  85          * @static
  86          */
  87         function newFromConfirmationCode( $code ) {
  88                 $dbr =& wfGetDB( DB_SLAVE );
  89                 $name = $dbr->selectField( 'user', 'user_name', array(
  90                         'user_email_token' => md5( $code ),
  91                         'user_email_token_expires > ' . $dbr->addQuotes( $dbr->timestamp() ),
  92                         ) );
  93                 if( is_string( $name ) ) {
  94                         return User::newFromName( $name );
  95                 } else {
  96                         return null;
  97                 }
  98         }
  99
 100         /**
 101          * Serialze sleep function, for better cache efficiency and avoidance of
 102          * silly "incomplete type" errors when skins are cached
 103          */
 104         function __sleep() {
 105                 return array( 'mId', 'mName', 'mPassword', 'mEmail', 'mNewtalk',
 106                         'mEmailAuthenticated', 'mRights', 'mOptions', 'mDataLoaded',
 107                         'mNewpassword', 'mBlockedby', 'mBlockreason', 'mTouched',
 108                         'mToken', 'mRealName', 'mHash', 'mGroups' );
 109         }
 110
 111         /**
 112          * Get username given an id.
 113          * @param integer $id Database user id
 114          * @return string Nickname of a user
 115          * @static
 116          */
 117         function whoIs( $id )   {
 118                 $dbr =& wfGetDB( DB_SLAVE );
 119                 return $dbr->selectField( 'user', 'user_name', array( 'user_id' => $id ) );
 120         }
 121
 122         /**
 123          * Get real username given an id.
 124          * @param integer $id Database user id
 125          * @return string Realname of a user
 126          * @static
 127          */
 128         function whoIsReal( $id )       {
 129                 $dbr =& wfGetDB( DB_SLAVE );
 130                 return $dbr->selectField( 'user', 'user_real_name', array( 'user_id' => $id ) );
 131         }
 132
 133         /**
 134          * Get database id given a user name
 135          * @param string $name Nickname of a user
 136          * @return integer|null Database user id (null: if non existent
 137          * @static
 138          */
 139         function idFromName( $name ) {
 140                 $fname = "User::idFromName";
 141
 142                 $nt = Title::newFromText( $name );
 143                 if( is_null( $nt ) ) {
 144                         # Illegal name
 145                         return null;
 146                 }
 147                 $dbr =& wfGetDB( DB_SLAVE );
 148                 $s = $dbr->selectRow( 'user', array( 'user_id' ), array( 'user_name' => $nt->getText() ), $fname );
 149
 150                 if ( $s === false ) {
 151                         return 0;
 152                 } else {
 153                         return $s->user_id;
 154                 }
 155         }
 156
 157         /**
 158          * does the string match an anonymous IPv4 address?
 159          *
 160          * @static
 161          * @param string $name Nickname of a user
 162          * @return bool
 163          */
 164         function isIP( $name ) {
 165                 return preg_match("/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/",$name);
 166                 /*return preg_match("/^
 167                         (?:[01]?\d{1,2}|2(:?[0-4]\d|5[0-5]))\.
 168                         (?:[01]?\d{1,2}|2(:?[0-4]\d|5[0-5]))\.
 169                         (?:[01]?\d{1,2}|2(:?[0-4]\d|5[0-5]))\.
 170                         (?:[01]?\d{1,2}|2(:?[0-4]\d|5[0-5]))
 171                 $/x", $name);*/
 172         }
 173
 174         /**
 175          * Is the input a valid username?
 176          *
 177          * Checks if the input is a valid username, we don't want an empty string,
 178          * an IP address, anything that containins slashes (would mess up subpages),
 179          * is longer than the maximum allowed username size or doesn't begin with
 180          * a capital letter.
 181          *
 182          * @param string $name
 183          * @return bool
 184          * @static
 185          */
 186         function isValidUserName( $name ) {
 187                 global $wgContLang, $wgMaxNameChars;
 188
 189                 if ( $name == ''
 190                 || User::isIP( $name )
 191                 || strpos( $name, '/' ) !== false
 192                 || strlen( $name ) > $wgMaxNameChars
 193                 || $name != $wgContLang->ucfirst( $name ) )
 194                         return false;
 195                 else
 196                         return true;
 197         }
 198
 199         /**
 200          * Is the input a valid password?
 201          *
 202          * @param string $password
 203          * @return bool
 204          * @static
 205          */
 206         function isValidPassword( $password ) {
 207                 global $wgMinimalPasswordLength;
 208                 return strlen( $password ) >= $wgMinimalPasswordLength;
 209         }
 210
 211         /**
 212          * does the string match roughly an email address ?
 213          *
 214          * @todo Check for RFC 2822 compilance
 215          * @bug 959
 216          *
 217          * @param string $addr email address
 218          * @static
 219          * @return bool
 220          */
 221         function isValidEmailAddr ( $addr ) {
 222                 # There used to be a regular expression here, it got removed because it
 223                 # rejected valid addresses.
 224                 return ( trim( $addr ) != '' ) &&
 225                         (false !== strpos( $addr, '@' ) );
 226         }
 227
 228         /**
 229          * Count the number of edits of a user
 230          *
 231          * @param int $uid The user ID to check
 232          * @return int
 233          */
 234         function edits( $uid ) {
 235                 $fname = 'User::editCount';
 236
 237                 $dbr =& wfGetDB( DB_SLAVE );
 238                 return $dbr->selectField(
 239                         'revision', 'count(*)',
 240                         array( 'rev_user' => $uid ),
 241                         $fname
 242                 );
 243         }
 244
 245         /**
 246          * Count the number of edits of a user by namespace
 247          *
 248          * @param int $uid The user ID to check
 249          * @return array
 250          */
 251         function editsByNs( $uid ) {
 252                 $fname = 'User::editsByNs';
 253                 $nscount = array();
 254
 255                 $dbr =& wfGetDB( DB_SLAVE );
 256                 $res = $dbr->select(
 257                         array( 'user', 'revision', 'page' ),
 258                         array( 'page_namespace', 'COUNT(*) as count' ),
 259                         array(
 260                                 'user_id' => $uid,
 261                                 'rev_user' => array( false, 'user_id' ),
 262                                 'rev_page' => array( false, 'page_id' )
 263                         ),
 264                         $fname,
 265                         array( 'GROUP BY' => 'page_namespace' )
 266                 );
 267
 268                 while( $row = $dbr->fetchObject( $res ) ) {
 269                         $nscount[$row->page_namespace] = $row->count;
 270                 }
 271                 return $nscount;
 272
 273         }
 274
 275         /**
 276          * probably return a random password
 277          * @return string probably a random password
 278          * @static
 279          * @todo Check what is doing really [AV]
 280          */
 281         function randomPassword() {
 282                 $pwchars = 'ABCDEFGHJKLMNPQRSTUVWXYZabcdefghjkmnpqrstuvwxyz';
 283                 $l = strlen( $pwchars ) - 1;
 284
 285                 $np = $pwchars{mt_rand( 0, $l )} . $pwchars{mt_rand( 0, $l )} .
 286                   $pwchars{mt_rand( 0, $l )} . chr( mt_rand(48, 57) ) .
 287                   $pwchars{mt_rand( 0, $l )} . $pwchars{mt_rand( 0, $l )} .
 288                   $pwchars{mt_rand( 0, $l )};
 289                 return $np;
 290         }
 291
 292         /**
 293          * Set properties to default
 294          * Used at construction. It will load per language default settings only
 295          * if we have an available language object.
 296          */
 297         function loadDefaults() {
 298                 static $n=0;
 299                 $n++;
 300                 $fname = 'User::loadDefaults' . $n;
 301                 wfProfileIn( $fname );
 302
 303                 global $wgContLang, $wgIP, $wgDBname;
 304                 global $wgNamespacesToBeSearchedDefault;
 305
 306                 $this->mId = 0;
 307                 $this->mNewtalk = -1;
 308                 $this->mName = $wgIP;
 309                 $this->mRealName = $this->mEmail = '';
 310                 $this->mEmailAuthenticated = null;
 311                 $this->mPassword = $this->mNewpassword = '';
 312                 $this->mRights = array();
 313                 $this->mGroups = array();
 314                 $this->mOptions = User::getDefaultOptions();
 315
 316                 foreach( $wgNamespacesToBeSearchedDefault as $nsnum => $val ) {
 317                         $this->mOptions['searchNs'.$nsnum] = $val;
 318                 }
 319                 unset( $this->mSkin );
 320                 $this->mDataLoaded = false;
 321                 $this->mBlockedby = -1; # Unset
 322                 $this->setToken(); # Random
 323                 $this->mHash = false;
 324
 325                 if ( isset( $_COOKIE[$wgDBname.'LoggedOut'] ) ) {
 326                         $this->mTouched = wfTimestamp( TS_MW, $_COOKIE[$wgDBname.'LoggedOut'] );
 327                 }
 328                 else {
 329                         $this->mTouched = '0'; # Allow any pages to be cached
 330                 }
 331
 332                 wfProfileOut( $fname );
 333         }
 334
 335         /**
 336          * Combine the language default options with any site-specific options
 337          * and add the default language variants.
 338          *
 339          * @return array
 340          * @static
 341          * @access private
 342          */
 343         function getDefaultOptions() {
 344                 /**
 345                  * Site defaults will override the global/language defaults
 346                  */
 347                 global $wgContLang, $wgDefaultUserOptions;
 348                 $defOpt = $wgDefaultUserOptions + $wgContLang->getDefaultUserOptions();
 349
 350                 /**
 351                  * default language setting
 352                  */
 353                 $variant = $wgContLang->getPreferredVariant();
 354                 $defOpt['variant'] = $variant;
 355                 $defOpt['language'] = $variant;
 356
 357                 return $defOpt;
 358         }
 359
 360         /**
 361          * Get a given default option value.
 362          *
 363          * @param string $opt
 364          * @return string
 365          * @static
 366          * @access public
 367          */
 368         function getDefaultOption( $opt ) {
 369                 $defOpts = User::getDefaultOptions();
 370                 if( isset( $defOpts[$opt] ) ) {
 371                         return $defOpts[$opt];
 372                 } else {
 373                         return '';
 374                 }
 375         }
 376
 377         /**
 378          * Get blocking information
 379          * @access private
 380          * @param bool $bFromSlave Specify whether to check slave or master. To improve performance,
 381          *  non-critical checks are done against slaves. Check when actually saving should be done against
 382          *  master.
 383          *
 384          * Note that even if $bFromSlave is false, the check is done first against slave, then master.
 385          * The logic is that if blocked on slave, we'll assume it's either blocked on master or
 386          * just slightly outta sync and soon corrected - safer to block slightly more that less.
 387          * And it's cheaper to check slave first, then master if needed, than master always.
 388          */
 389         function getBlockedStatus( $bFromSlave = true ) {
 390                 global $wgIP, $wgBlockCache, $wgProxyList, $wgEnableSorbs, $wgProxyWhitelist;
 391
 392                 if ( -1 != $this->mBlockedby ) { return; }
 393
 394                 $this->mBlockedby = 0;
 395
 396                 # User blocking
 397                 if ( $this->mId ) {
 398                         $block = new Block();
 399                         $block->forUpdate( $bFromSlave );
 400                         if ( $block->load( $wgIP , $this->mId ) ) {
 401                                 $this->mBlockedby = $block->mBy;
 402                                 $this->mBlockreason = $block->mReason;
 403                                 $this->spreadBlock();
 404                         }
 405                 }
 406
 407                 # IP/range blocking
 408                 if ( !$this->mBlockedby ) {
 409                         # Check first against slave, and optionally from master.
 410                         $block = $wgBlockCache->get( $wgIP, true );
 411                         if ( !$block && !$bFromSlave )
 412                                 {
 413                                 # Not blocked: check against master, to make sure.
 414                                 $wgBlockCache->clearLocal( );
 415                                 $block = $wgBlockCache->get( $wgIP, false );
 416                                 }
 417                         if ( $block !== false ) {
 418                                 $this->mBlockedby = $block->mBy;
 419                                 $this->mBlockreason = $block->mReason;
 420                         }
 421                 }
 422
 423                 # Proxy blocking
 424                 if ( !$this->isSysop() && !in_array( $wgIP, $wgProxyWhitelist ) ) {
 425
 426                         # Local list
 427                         if ( array_key_exists( $wgIP, $wgProxyList ) ) {
 428                                 $this->mBlockedby = wfMsg( 'proxyblocker' );
 429                                 $this->mBlockreason = wfMsg( 'proxyblockreason' );
 430                         }
 431
 432                         # DNSBL
 433                         if ( !$this->mBlockedby && $wgEnableSorbs && !$this->getID() ) {
 434                                 if ( $this->inSorbsBlacklist( $wgIP ) ) {
 435                                         $this->mBlockedby = wfMsg( 'sorbs' );
 436                                         $this->mBlockreason = wfMsg( 'sorbsreason' );
 437                                 }
 438                         }
 439                 }
 440         }
 441
 442         function inSorbsBlacklist( $ip ) {
 443                 global $wgEnableSorbs;
 444                 return $wgEnableSorbs &&
 445                         $this->inDnsBlacklist( $ip, 'http.dnsbl.sorbs.net.' );
 446         }
 447
 448         function inOpmBlacklist( $ip ) {
 449                 global $wgEnableOpm;
 450                 return $wgEnableOpm &&
 451                         $this->inDnsBlacklist( $ip, 'opm.blitzed.org.' );
 452         }
 453
 454         function inDnsBlacklist( $ip, $base ) {
 455                 $fname = 'User::inDnsBlacklist';
 456                 wfProfileIn( $fname );
 457
 458                 $found = false;
 459                 $host = '';
 460
 461                 if ( preg_match( '/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/', $ip, $m ) ) {
 462                         # Make hostname
 463                         for ( $i=4; $i>=1; $i-- ) {
 464                                 $host .= $m[$i] . '.';
 465                         }
 466                         $host .= $base;
 467
 468                         # Send query
 469                         $ipList = gethostbynamel( $host );
 470
 471                         if ( $ipList ) {
 472                                 wfDebug( "Hostname $host is {$ipList[0]}, it's a proxy says $base!\n" );
 473                                 $found = true;
 474                         } else {
 475                                 wfDebug( "Requested $host, not found in $base.\n" );
 476                         }
 477                 }
 478
 479                 wfProfileOut( $fname );
 480                 return $found;
 481         }
 482
 483         /**
 484          * Primitive rate limits: enforce maximum actions per time period
 485          * to put a brake on flooding.
 486          *
 487          * Note: when using a shared cache like memcached, IP-address
 488          * last-hit counters will be shared across wikis.
 489          *
 490          * @return bool true if a rate limiter was tripped
 491          * @access public
 492          */
 493         function pingLimiter( $action='edit' ) {
 494                 global $wgRateLimits;
 495                 if( !isset( $wgRateLimits[$action] ) ) {
 496                         return false;
 497                 }
 498                 if( $this->isAllowed( 'delete' ) ) {
 499                         // goddam cabal
 500                         return false;
 501                 }
 502
 503                 global $wgMemc, $wgIP, $wgDBname, $wgRateLimitLog;
 504                 $fname = 'User::pingLimiter';
 505                 $limits = $wgRateLimits[$action];
 506                 $keys = array();
 507                 $id = $this->getId();
 508
 509                 if( isset( $limits['anon'] ) && $id == 0 ) {
 510                         $keys["$wgDBname:limiter:$action:anon"] = $limits['anon'];
 511                 }
 512
 513                 if( isset( $limits['user'] ) && $id != 0 ) {
 514                         $keys["$wgDBname:limiter:$action:user:$id"] = $limits['user'];
 515                 }
 516                 if( $this->isNewbie() ) {
 517                         if( isset( $limits['newbie'] ) && $id != 0 ) {
 518                                 $keys["$wgDBname:limiter:$action:user:$id"] = $limits['newbie'];
 519                         }
 520                         if( isset( $limits['ip'] ) ) {
 521                                 $keys["mediawiki:limiter:$action:ip:$wgIP"] = $limits['ip'];
 522                         }
 523                         if( isset( $limits['subnet'] ) && preg_match( '/^(\d+\.\d+\.\d+)\.\d+$/', $wgIP, $matches ) ) {
 524                                 $subnet = $matches[1];
 525                                 $keys["mediawiki:limiter:$action:subnet:$subnet"] = $limits['subnet'];
 526                         }
 527                 }
 528
 529                 $triggered = false;
 530                 foreach( $keys as $key => $limit ) {
 531                         list( $max, $period ) = $limit;
 532                         $summary = "(limit $max in {$period}s)";
 533                         $count = $wgMemc->get( $key );
 534                         if( $count ) {
 535                                 if( $count > $max ) {
 536                                         wfDebug( "$fname: tripped! $key at $count $summary\n" );
 537                                         if( $wgRateLimitLog ) {
 538                                                 @error_log( wfTimestamp( TS_MW ) . ' ' . $wgDBname . ': ' . $this->getName() . " tripped $key at $count $summary\n", 3, $wgRateLimitLog );
 539                                         }
 540                                         $triggered = true;
 541                                 } else {
 542                                         wfDebug( "$fname: ok. $key at $count $summary\n" );
 543                                 }
 544                         } else {
 545                                 wfDebug( "$fname: adding record for $key $summary\n" );
 546                                 $wgMemc->add( $key, 1, IntVal( $period ) );
 547                         }
 548                         $wgMemc->incr( $key );
 549                 }
 550
 551                 return $triggered;
 552         }
 553
 554         /**
 555          * Check if user is blocked
 556          * @return bool True if blocked, false otherwise
 557          */
 558         function isBlocked( $bFromSlave = false ) {
 559                 $this->getBlockedStatus( $bFromSlave );
 560                 return $this->mBlockedby !== 0;
 561         }
 562
 563         /**
 564          * Check if user is blocked from editing a particular article
 565          */
 566         function isBlockedFrom( $title, $bFromSlave = false ) {
 567                 global $wgBlockAllowsUTEdit;
 568                 if ( $wgBlockAllowsUTEdit && $title->getText() === $this->getName() &&
 569                   $title->getNamespace() == NS_USER_TALK )
 570                 {
 571                         return false;
 572                 } else {
 573                         return $this->isBlocked( $bFromSlave );
 574                 }
 575         }
 576
 577         /**
 578          * Get name of blocker
 579          * @return string name of blocker
 580          */
 581         function blockedBy() {
 582                 $this->getBlockedStatus();
 583                 return $this->mBlockedby;
 584         }
 585
 586         /**
 587          * Get blocking reason
 588          * @return string Blocking reason
 589          */
 590         function blockedFor() {
 591                 $this->getBlockedStatus();
 592                 return $this->mBlockreason;
 593         }
 594
 595         /**
 596          * Initialise php session
 597          */
 598         function SetupSession() {
 599                 global $wgSessionsInMemcached, $wgCookiePath, $wgCookieDomain;
 600                 if( $wgSessionsInMemcached ) {
 601                         require_once( 'MemcachedSessions.php' );
 602                 } elseif( 'files' != ini_get( 'session.save_handler' ) ) {
 603                         # If it's left on 'user' or another setting from another
 604                         # application, it will end up failing. Try to recover.
 605                         ini_set ( 'session.save_handler', 'files' );
 606                 }
 607                 session_set_cookie_params( 0, $wgCookiePath, $wgCookieDomain );
 608                 session_cache_limiter( 'private, must-revalidate' );
 609                 @session_start();
 610         }
 611
 612         /**
 613          * Read datas from session
 614          * @static
 615          */
 616         function loadFromSession() {
 617                 global $wgMemc, $wgDBname;
 618
 619                 if ( isset( $_SESSION['wsUserID'] ) ) {
 620                         if ( 0 != $_SESSION['wsUserID'] ) {
 621                                 $sId = $_SESSION['wsUserID'];
 622                         } else {
 623                                 return new User();
 624                         }
 625                 } else if ( isset( $_COOKIE["{$wgDBname}UserID"] ) ) {
 626                         $sId = IntVal( $_COOKIE["{$wgDBname}UserID"] );
 627                         $_SESSION['wsUserID'] = $sId;
 628                 } else {
 629                         return new User();
 630                 }
 631                 if ( isset( $_SESSION['wsUserName'] ) ) {
 632                         $sName = $_SESSION['wsUserName'];
 633                 } else if ( isset( $_COOKIE["{$wgDBname}UserName"] ) ) {
 634                         $sName = $_COOKIE["{$wgDBname}UserName"];
 635                         $_SESSION['wsUserName'] = $sName;
 636                 } else {
 637                         return new User();
 638                 }
 639
 640                 $passwordCorrect = FALSE;
 641                 $user = $wgMemc->get( $key = "$wgDBname:user:id:$sId" );
 642                 if( !is_object( $user ) || $user->mVersion < MW_USER_VERSION ) {
 643                         # Expire old serialized objects; they may be corrupt.
 644                         $user = false;
 645                 }
 646                 if($makenew = !$user) {
 647                         wfDebug( "User::loadFromSession() unable to load from memcached\n" );
 648                         $user = new User();
 649                         $user->mId = $sId;
 650                         $user->loadFromDatabase();
 651                 } else {
 652                         wfDebug( "User::loadFromSession() got from cache!\n" );
 653                 }
 654
 655                 if ( isset( $_SESSION['wsToken'] ) ) {
 656                         $passwordCorrect = $_SESSION['wsToken'] == $user->mToken;
 657                 } else if ( isset( $_COOKIE["{$wgDBname}Token"] ) ) {
 658                         $passwordCorrect = $user->mToken == $_COOKIE["{$wgDBname}Token"];
 659                 } else {
 660                         return new User(); # Can't log in from session
 661                 }
 662
 663                 if ( ( $sName == $user->mName ) && $passwordCorrect ) {
 664                         if($makenew) {
 665                                 if($wgMemc->set( $key, $user ))
 666                                         wfDebug( "User::loadFromSession() successfully saved user\n" );
 667                                 else
 668                                         wfDebug( "User::loadFromSession() unable to save to memcached\n" );
 669                         }
 670                         return $user;
 671                 }
 672                 return new User(); # Can't log in from session
 673         }
 674
 675         /**
 676          * Load a user from the database
 677          */
 678         function loadFromDatabase() {
 679                 global $wgCommandLineMode;
 680                 $fname = "User::loadFromDatabase";
 681
 682                 # Counter-intuitive, breaks various things, use User::setLoaded() if you want to suppress
 683                 # loading in a command line script, don't assume all command line scripts need it like this
 684                 #if ( $this->mDataLoaded || $wgCommandLineMode ) {
 685                 if ( $this->mDataLoaded ) {
 686                         return;
 687                 }
 688
 689                 # Paranoia
 690                 $this->mId = IntVal( $this->mId );
 691
 692                 /** Anonymous user */
 693                 if( !$this->mId ) {
 694                         /** Get rights */
 695                         $this->mRights = $this->getGroupPermissions( array( '*' ) );
 696                         $this->mDataLoaded = true;
 697                         return;
 698                 } # the following stuff is for non-anonymous users only
 699
 700                 $dbr =& wfGetDB( DB_SLAVE );
 701                 $s = $dbr->selectRow( 'user', array( 'user_name','user_password','user_newpassword','user_email',
 702                   'user_email_authenticated',
 703                   'user_real_name','user_options','user_touched', 'user_token' ),
 704                   array( 'user_id' => $this->mId ), $fname );
 705
 706                 if ( $s !== false ) {
 707                         $this->mName = $s->user_name;
 708                         $this->mEmail = $s->user_email;
 709                         $this->mEmailAuthenticated = wfTimestampOrNull( TS_MW, $s->user_email_authenticated );
 710                         $this->mRealName = $s->user_real_name;
 711                         $this->mPassword = $s->user_password;
 712                         $this->mNewpassword = $s->user_newpassword;
 713                         $this->decodeOptions( $s->user_options );
 714                         $this->mTouched = wfTimestamp(TS_MW,$s->user_touched);
 715                         $this->mToken = $s->user_token;
 716
 717                         $res = $dbr->select( 'user_groups',
 718                                 array( 'ug_group' ),
 719                                 array( 'ug_user' => $this->mId ),
 720                                 $fname );
 721                         $this->mGroups = array();
 722                         while( $row = $dbr->fetchObject( $res ) ) {
 723                                 $this->mGroups[] = $row->ug_group;
 724                         }
 725                         $effectiveGroups = array_merge( array( '*', 'user' ), $this->mGroups );
 726                         $this->mRights = $this->getGroupPermissions( $effectiveGroups );
 727                 }
 728
 729                 $this->mDataLoaded = true;
 730         }
 731
 732         function getID() { return $this->mId; }
 733         function setID( $v ) {
 734                 $this->mId = $v;
 735                 $this->mDataLoaded = false;
 736         }
 737
 738         function getName() {
 739                 $this->loadFromDatabase();
 740                 return $this->mName;
 741         }
 742
 743         function setName( $str ) {
 744                 $this->loadFromDatabase();
 745                 $this->mName = $str;
 746         }
 747
 748
 749         /**
 750          * Return the title dbkey form of the name, for eg user pages.
 751          * @return string
 752          * @access public
 753          */
 754         function getTitleKey() {
 755                 return str_replace( ' ', '_', $this->getName() );
 756         }
 757
 758         function getNewtalk() {
 759                 global $wgUseEnotif;
 760                 $fname = 'User::getNewtalk';
 761                 $this->loadFromDatabase();
 762
 763                 # Load the newtalk status if it is unloaded (mNewtalk=-1)
 764                 if( $this->mNewtalk == -1 ) {
 765                         $this->mNewtalk = 0; # reset talk page status
 766
 767                         # Check memcached separately for anons, who have no
 768                         # entire User object stored in there.
 769                         if( !$this->mId ) {
 770                                 global $wgDBname, $wgMemc;
 771                                 $key = "$wgDBname:newtalk:ip:{$this->mName}";
 772                                 $newtalk = $wgMemc->get( $key );
 773                                 if( is_integer( $newtalk ) ) {
 774                                         $this->mNewtalk = $newtalk ? 1 : 0;
 775                                         return (bool)$this->mNewtalk;
 776                                 }
 777                         }
 778
 779                         $dbr =& wfGetDB( DB_SLAVE );
 780                         if ( $wgUseEnotif ) {
 781                                 $res = $dbr->select( 'watchlist',
 782                                         array( 'wl_user' ),
 783                                         array( 'wl_title'     => $this->getTitleKey(),
 784                                                    'wl_namespace' => NS_USER_TALK,
 785                                                    'wl_user'      => $this->mId,
 786                                                    'wl_notificationtimestamp != 0' ),
 787                                         'User::getNewtalk' );
 788                                 if( $dbr->numRows($res) > 0 ) {
 789                                         $this->mNewtalk = 1;
 790                                 }
 791                                 $dbr->freeResult( $res );
 792                         } elseif ( $this->mId ) {
 793                                 $res = $dbr->select( 'user_newtalk', 1, array( 'user_id' => $this->mId ), $fname );
 794
 795                                 if ( $dbr->numRows($res)>0 ) {
 796                                         $this->mNewtalk= 1;
 797                                 }
 798                                 $dbr->freeResult( $res );
 799                         } else {
 800                                 $res = $dbr->select( 'user_newtalk', 1, array( 'user_ip' => $this->mName ), $fname );
 801                                 $this->mNewtalk = $dbr->numRows( $res ) > 0 ? 1 : 0;
 802                                 $dbr->freeResult( $res );
 803                         }
 804
 805                         if( !$this->mId ) {
 806                                 $wgMemc->set( $key, $this->mNewtalk, time() ); // + 1800 );
 807                         }
 808                 }
 809
 810                 return ( 0 != $this->mNewtalk );
 811         }
 812
 813         function setNewtalk( $val ) {
 814                 $this->loadFromDatabase();
 815                 $this->mNewtalk = $val;
 816                 $this->invalidateCache();
 817         }
 818
 819         function invalidateCache() {
 820                 global $wgClockSkewFudge;
 821                 $this->loadFromDatabase();
 822                 $this->mTouched = wfTimestamp(TS_MW, time() + $wgClockSkewFudge );
 823                 # Don't forget to save the options after this or
 824                 # it won't take effect!
 825         }
 826
 827         function validateCache( $timestamp ) {
 828                 $this->loadFromDatabase();
 829                 return ($timestamp >= $this->mTouched);
 830         }
 831
 832         /**
 833          * Salt a password.
 834          * Will only be salted if $wgPasswordSalt is true
 835          * @param string Password.
 836          * @return string Salted password or clear password.
 837          */
 838         function addSalt( $p ) {
 839                 global $wgPasswordSalt;
 840                 if($wgPasswordSalt)
 841                         return md5( "{$this->mId}-{$p}" );
 842                 else
 843                         return $p;
 844         }
 845
 846         /**
 847          * Encrypt a password.
 848          * It can eventuall salt a password @see User::addSalt()
 849          * @param string $p clear Password.
 850          * @param string Encrypted password.
 851          */
 852         function encryptPassword( $p ) {
 853                 return $this->addSalt( md5( $p ) );
 854         }
 855
 856         # Set the password and reset the random token
 857         function setPassword( $str ) {
 858                 $this->loadFromDatabase();
 859                 $this->setToken();
 860                 $this->mPassword = $this->encryptPassword( $str );
 861                 $this->mNewpassword = '';
 862         }
 863
 864         # Set the random token (used for persistent authentication)
 865         function setToken( $token = false ) {
 866                 global $wgSecretKey, $wgProxyKey, $wgDBname;
 867                 if ( !$token ) {
 868                         if ( $wgSecretKey ) {
 869                                 $key = $wgSecretKey;
 870                         } elseif ( $wgProxyKey ) {
 871                                 $key = $wgProxyKey;
 872                         } else {
 873                                 $key = microtime();
 874                         }
 875                         $this->mToken = md5( $key . mt_rand( 0, 0x7fffffff ) . $wgDBname . $this->mId );
 876                 } else {
 877                         $this->mToken = $token;
 878                 }
 879         }
 880
 881
 882         function setCookiePassword( $str ) {
 883                 $this->loadFromDatabase();
 884                 $this->mCookiePassword = md5( $str );
 885         }
 886
 887         function setNewpassword( $str ) {
 888                 $this->loadFromDatabase();
 889                 $this->mNewpassword = $this->encryptPassword( $str );
 890         }
 891
 892         function getEmail() {
 893                 $this->loadFromDatabase();
 894                 return $this->mEmail;
 895         }
 896
 897         function getEmailAuthenticationTimestamp() {
 898                 $this->loadFromDatabase();
 899                 return $this->mEmailAuthenticated;
 900         }
 901
 902         function setEmail( $str ) {
 903                 $this->loadFromDatabase();
 904                 $this->mEmail = $str;
 905         }
 906
 907         function getRealName() {
 908                 $this->loadFromDatabase();
 909                 return $this->mRealName;
 910         }
 911
 912         function setRealName( $str ) {
 913                 $this->loadFromDatabase();
 914                 $this->mRealName = $str;
 915         }
 916
 917         function getOption( $oname ) {
 918                 $this->loadFromDatabase();
 919                 if ( array_key_exists( $oname, $this->mOptions ) ) {
 920                         return trim( $this->mOptions[$oname] );
 921                 } else {
 922                         return '';
 923                 }
 924         }
 925
 926         function setOption( $oname, $val ) {
 927                 $this->loadFromDatabase();
 928                 if ( $oname == 'skin' ) {
 929                         # Clear cached skin, so the new one displays immediately in Special:Preferences
 930                         unset( $this->mSkin );
 931                 }
 932                 $this->mOptions[$oname] = $val;
 933                 $this->invalidateCache();
 934         }
 935
 936         function getRights() {
 937                 $this->loadFromDatabase();
 938                 return $this->mRights;
 939         }
 940
 941         /**
 942          * Get the list of explicit group memberships this user has.
 943          * The implicit * and user groups are not included.
 944          * @return array of strings
 945          */
 946         function getGroups() {
 947                 $this->loadFromDatabase();
 948                 return $this->mGroups;
 949         }
 950
 951         /**
 952          * Get the list of implicit group memberships this user has.
 953          * This includes all explicit groups, plus 'user' if logged in
 954          * and '*' for all accounts.
 955          * @return array of strings
 956          */
 957         function getEffectiveGroups() {
 958                 $base = array( '*' );
 959                 if( $this->isLoggedIn() ) {
 960                         $base[] = 'user';
 961                 }
 962                 return array_merge( $base, $this->getGroups() );
 963         }
 964
 965         /**
 966          * Remove the user from the given group.
 967          * This takes immediate effect.
 968          * @string $group
 969          */
 970         function addGroup( $group ) {
 971                 $dbw =& wfGetDB( DB_MASTER );
 972                 $dbw->insert( 'user_groups',
 973                         array(
 974                                 'ug_user'  => $this->getID(),
 975                                 'ug_group' => $group,
 976                         ),
 977                         'User::addGroup',
 978                         array( 'IGNORE' ) );
 979
 980                 $this->mGroups = array_merge( $this->mGroups, array( $group ) );
 981                 $this->mRights = User::getGroupPermissions( $this->getEffectiveGroups() );
 982
 983                 $this->invalidateCache();
 984                 $this->saveSettings();
 985         }
 986
 987         /**
 988          * Remove the user from the given group.
 989          * This takes immediate effect.
 990          * @string $group
 991          */
 992         function removeGroup( $group ) {
 993                 $dbw =& wfGetDB( DB_MASTER );
 994                 $dbw->delete( 'user_groups',
 995                         array(
 996                                 'ug_user'  => $this->getID(),
 997                                 'ug_group' => $group,
 998                         ),
 999                         'User::removeGroup' );
1000
1001                 $this->mGroups = array_diff( $this->mGroups, array( $group ) );
1002                 $this->mRights = User::getGroupPermissions( $this->getEffectiveGroups() );
1003
1004                 $this->invalidateCache();
1005                 $this->saveSettings();
1006         }
1007
1008
1009         /**
1010          * A more legible check for non-anonymousness.
1011          * Returns true if the user is not an anonymous visitor.
1012          *
1013          * @return bool
1014          */
1015         function isLoggedIn() {
1016                 return( $this->getID() != 0 );
1017         }
1018
1019         /**
1020          * A more legible check for anonymousness.
1021          * Returns true if the user is an anonymous visitor.
1022          *
1023          * @return bool
1024          */
1025         function isAnon() {
1026                 return !$this->isLoggedIn();
1027         }
1028
1029         /**
1030          * Check if a user is sysop
1031          * Die with backtrace. Use User:isAllowed() instead.
1032          * @deprecated
1033          */
1034         function isSysop() {
1035                 return $this->isAllowed( 'protect' );
1036         }
1037
1038         /** @deprecated */
1039         function isDeveloper() {
1040                 return $this->isAllowed( 'siteadmin' );
1041         }
1042
1043         /** @deprecated */
1044         function isBureaucrat() {
1045                 return $this->isAllowed( 'makesysop' );
1046         }
1047
1048         /**
1049          * Whether the user is a bot
1050          * @todo need to be migrated to the new user level management sytem
1051          */
1052         function isBot() {
1053                 $this->loadFromDatabase();
1054                 return in_array( 'bot', $this->mRights );
1055         }
1056
1057         /**
1058          * Check if user is allowed to access a feature / make an action
1059          * @param string $action Action to be checked (see $wgAvailableRights in Defines.php for possible actions).
1060          * @return boolean True: action is allowed, False: action should not be allowed
1061          */
1062         function isAllowed($action='') {
1063                 $this->loadFromDatabase();
1064                 return in_array( $action , $this->mRights );
1065         }
1066
1067         /**
1068          * Load a skin if it doesn't exist or return it
1069          * @todo FIXME : need to check the old failback system [AV]
1070          */
1071         function &getSkin() {
1072                 global $IP;
1073                 if ( ! isset( $this->mSkin ) ) {
1074                         $fname = 'User::getSkin';
1075                         wfProfileIn( $fname );
1076
1077                         # get all skin names available
1078                         $skinNames = Skin::getSkinNames();
1079
1080                         # get the user skin
1081                         $userSkin = $this->getOption( 'skin' );
1082                         if ( $userSkin == '' ) { $userSkin = 'standard'; }
1083
1084                         if ( !isset( $skinNames[$userSkin] ) ) {
1085                                 # in case the user skin could not be found find a replacement
1086                                 $fallback = array(
1087                                         0 => 'Standard',
1088                                         1 => 'Nostalgia',
1089                                         2 => 'CologneBlue');
1090                                 # if phptal is enabled we should have monobook skin that
1091                                 # superseed the good old SkinStandard.
1092                                 if ( isset( $skinNames['monobook'] ) ) {
1093                                         $fallback[0] = 'MonoBook';
1094                                 }
1095
1096                                 if(is_numeric($userSkin) && isset( $fallback[$userSkin]) ){
1097                                         $sn = $fallback[$userSkin];
1098                                 } else {
1099                                         $sn = 'Standard';
1100                                 }
1101                         } else {
1102                                 # The user skin is available
1103                                 $sn = $skinNames[$userSkin];
1104                         }
1105
1106                         # Grab the skin class and initialise it. Each skin checks for PHPTal
1107                         # and will not load if it's not enabled.
1108                         require_once( $IP.'/skins/'.$sn.'.php' );
1109
1110                         # Check if we got if not failback to default skin
1111                         $className = 'Skin'.$sn;
1112                         if( !class_exists( $className ) ) {
1113                                 # DO NOT die if the class isn't found. This breaks maintenance
1114                                 # scripts and can cause a user account to be unrecoverable
1115                                 # except by SQL manipulation if a previously valid skin name
1116                                 # is no longer valid.
1117                                 $className = 'SkinStandard';
1118                                 require_once( $IP.'/skins/Standard.php' );
1119                         }
1120                         $this->mSkin =& new $className;
1121                         wfProfileOut( $fname );
1122                 }
1123                 return $this->mSkin;
1124         }
1125
1126         /**#@+
1127          * @param string $title Article title to look at
1128          */
1129
1130         /**
1131          * Check watched status of an article
1132          * @return bool True if article is watched
1133          */
1134         function isWatched( $title ) {
1135                 $wl = WatchedItem::fromUserTitle( $this, $title );
1136                 return $wl->isWatched();
1137         }
1138
1139         /**
1140          * Watch an article
1141          */
1142         function addWatch( $title ) {
1143                 $wl = WatchedItem::fromUserTitle( $this, $title );
1144                 $wl->addWatch();
1145                 $this->invalidateCache();
1146         }
1147
1148         /**
1149          * Stop watching an article
1150          */
1151         function removeWatch( $title ) {
1152                 $wl = WatchedItem::fromUserTitle( $this, $title );
1153                 $wl->removeWatch();
1154                 $this->invalidateCache();
1155         }
1156
1157         /**
1158          * Clear the user's notification timestamp for the given title.
1159          * If e-notif e-mails are on, they will receive notification mails on
1160          * the next change of the page if it's watched etc.
1161          */
1162         function clearNotification( &$title ) {
1163                 global $wgUser, $wgUseEnotif;
1164
1165                 if ( !$wgUseEnotif ) {
1166                         return;
1167                 }
1168
1169                 $userid = $this->getID();
1170                 if ($userid==0) {
1171                         return;
1172                 }
1173
1174                 // Only update the timestamp if the page is being watched.
1175                 // The query to find out if it is watched is cached both in memcached and per-invocation,
1176                 // and when it does have to be executed, it can be on a slave
1177                 // If this is the user's newtalk page, we always update the timestamp
1178                 if ($title->getNamespace() == NS_USER_TALK &&
1179                         $title->getText() == $wgUser->getName())
1180                 {
1181                         $watched = true;
1182                 } elseif ( $this->getID() == $wgUser->getID() ) {
1183                         $watched = $title->userIsWatching();
1184                 } else {
1185                         $watched = true;
1186                 }
1187
1188                 // If the page is watched by the user (or may be watched), update the timestamp on any
1189                 // any matching rows
1190                 if ( $watched ) {
1191                         $dbw =& wfGetDB( DB_MASTER );
1192                         $success = $dbw->update( 'watchlist',
1193                                         array( /* SET */
1194                                                 'wl_notificationtimestamp' => 0
1195                                         ), array( /* WHERE */
1196                                                 'wl_title' => $title->getDBkey(),
1197                                                 'wl_namespace' => $title->getNamespace(),
1198                                                 'wl_user' => $this->getID()
1199                                         ), 'User::clearLastVisited'
1200                         );
1201                 }
1202         }
1203
1204         /**#@-*/
1205
1206         /**
1207          * Resets all of the given user's page-change notification timestamps.
1208          * If e-notif e-mails are on, they will receive notification mails on
1209          * the next change of any watched page.
1210          *
1211          * @param int $currentUser user ID number
1212          * @access public
1213          */
1214         function clearAllNotifications( $currentUser ) {
1215                 global $wgUseEnotif;
1216                 if ( !$wgUseEnotif ) {
1217                         return;
1218                 }
1219                 if( $currentUser != 0 )  {
1220
1221                         $dbw =& wfGetDB( DB_MASTER );
1222                         $success = $dbw->update( 'watchlist',
1223                                 array( /* SET */
1224                                         'wl_notificationtimestamp' => 0
1225                                 ), array( /* WHERE */
1226                                         'wl_user' => $currentUser
1227                                 ), 'UserMailer::clearAll'
1228                         );
1229
1230                 #       we also need to clear here the "you have new message" notification for the own user_talk page
1231                 #       This is cleared one page view later in Article::viewUpdates();
1232                 }
1233         }
1234
1235         /**
1236          * @access private
1237          * @return string Encoding options
1238          */
1239         function encodeOptions() {
1240                 $a = array();
1241                 foreach ( $this->mOptions as $oname => $oval ) {
1242                         array_push( $a, $oname.'='.$oval );
1243                 }
1244                 $s = implode( "\n", $a );
1245                 return $s;
1246         }
1247
1248         /**
1249          * @access private
1250          */
1251         function decodeOptions( $str ) {
1252                 $a = explode( "\n", $str );
1253                 foreach ( $a as $s ) {
1254                         if ( preg_match( "/^(.[^=]*)=(.*)$/", $s, $m ) ) {
1255                                 $this->mOptions[$m[1]] = $m[2];
1256                         }
1257                 }
1258         }
1259
1260         function setCookies() {
1261                 global $wgCookieExpiration, $wgCookiePath, $wgCookieDomain, $wgDBname;
1262                 if ( 0 == $this->mId ) return;
1263                 $this->loadFromDatabase();
1264                 $exp = time() + $wgCookieExpiration;
1265
1266                 $_SESSION['wsUserID'] = $this->mId;
1267                 setcookie( $wgDBname.'UserID', $this->mId, $exp, $wgCookiePath, $wgCookieDomain );
1268
1269                 $_SESSION['wsUserName'] = $this->mName;
1270                 setcookie( $wgDBname.'UserName', $this->mName, $exp, $wgCookiePath, $wgCookieDomain );
1271
1272                 $_SESSION['wsToken'] = $this->mToken;
1273                 if ( 1 == $this->getOption( 'rememberpassword' ) ) {
1274                         setcookie( $wgDBname.'Token', $this->mToken, $exp, $wgCookiePath, $wgCookieDomain );
1275                 } else {
1276                         setcookie( $wgDBname.'Token', '', time() - 3600 );
1277                 }
1278         }
1279
1280         /**
1281          * Logout user
1282          * It will clean the session cookie
1283          */
1284         function logout() {
1285                 global $wgCookiePath, $wgCookieDomain, $wgDBname, $wgIP;
1286                 $this->loadDefaults();
1287                 $this->setLoaded( true );
1288
1289                 $_SESSION['wsUserID'] = 0;
1290
1291                 setcookie( $wgDBname.'UserID', '', time() - 3600, $wgCookiePath, $wgCookieDomain );
1292                 setcookie( $wgDBname.'Token', '', time() - 3600, $wgCookiePath, $wgCookieDomain );
1293
1294                 # Remember when user logged out, to prevent seeing cached pages
1295                 setcookie( $wgDBname.'LoggedOut', wfTimestampNow(), time() + 86400, $wgCookiePath, $wgCookieDomain );
1296         }
1297
1298         /**
1299          * Save object settings into database
1300          */
1301         function saveSettings() {
1302                 global $wgMemc, $wgDBname, $wgUseEnotif;
1303                 $fname = 'User::saveSettings';
1304
1305                 if ( wfReadOnly() ) { return; }
1306                 $this->saveNewtalk();
1307                 if ( 0 == $this->mId ) { return; }
1308
1309                 $dbw =& wfGetDB( DB_MASTER );
1310                 $dbw->update( 'user',
1311                         array( /* SET */
1312                                 'user_name' => $this->mName,
1313                                 'user_password' => $this->mPassword,
1314                                 'user_newpassword' => $this->mNewpassword,
1315                                 'user_real_name' => $this->mRealName,
1316                                 'user_email' => $this->mEmail,
1317                                 'user_email_authenticated' => $dbw->timestampOrNull( $this->mEmailAuthenticated ),
1318                                 'user_options' => $this->encodeOptions(),
1319                                 'user_touched' => $dbw->timestamp($this->mTouched),
1320                                 'user_token' => $this->mToken
1321                         ), array( /* WHERE */
1322                                 'user_id' => $this->mId
1323                         ), $fname
1324                 );
1325                 $wgMemc->delete( "$wgDBname:user:id:$this->mId" );
1326         }
1327
1328         /**
1329          * Save value of new talk flag.
1330          */
1331         function saveNewtalk() {
1332                 global $wgDBname, $wgMemc, $wgUseEnotif;
1333
1334                 $fname = 'User::saveNewtalk';
1335
1336                 $changed = false;
1337
1338                 if ( wfReadOnly() ) { return ; }
1339                 $dbr =& wfGetDB( DB_SLAVE );
1340                 $dbw =& wfGetDB( DB_MASTER );
1341                 $changed = false;
1342                 if ( $wgUseEnotif ) {
1343                         if ( ! $this->getNewtalk() ) {
1344                                 # Delete the watchlist entry for user_talk page X watched by user X
1345                                 $dbw->delete( 'watchlist',
1346                                         array( 'wl_user'      => $this->mId,
1347                                                    'wl_title'     => $this->getTitleKey(),
1348                                                    'wl_namespace' => NS_USER_TALK ),
1349                                         $fname );
1350                                 if ( $dbw->affectedRows() ) {
1351                                         $changed = true;
1352                                 }
1353                                 if( !$this->mId ) {
1354                                         # Anon users have a separate memcache space for newtalk
1355                                         # since they don't store their own info. Trim...
1356                                         $wgMemc->delete( "$wgDBname:newtalk:ip:{$this->mName}" );
1357                                 }
1358                         }
1359                 } else {
1360                         if ($this->getID() != 0) {
1361                                 $field = 'user_id';
1362                                 $value = $this->getID();
1363                                 $key = false;
1364                         } else {
1365                                 $field = 'user_ip';
1366                                 $value = $this->mName;
1367                                 $key = "$wgDBname:newtalk:ip:$this->mName";
1368                         }
1369
1370                         $dbr =& wfGetDB( DB_SLAVE );
1371                         $dbw =& wfGetDB( DB_MASTER );
1372
1373                         $res = $dbr->selectField('user_newtalk', $field,
1374                                                                          array($field => $value), $fname);
1375
1376                         $changed = true;
1377                         if ($res !== false && $this->mNewtalk == 0) {
1378                                 $dbw->delete('user_newtalk', array($field => $value), $fname);
1379                                 if ( $key ) {
1380                                         $wgMemc->set( $key, 0 );
1381                                 }
1382                         } else if ($res === false && $this->mNewtalk == 1) {
1383                                 $dbw->insert('user_newtalk', array($field => $value), $fname);
1384                                 if ( $key ) {
1385                                         $wgMemc->set( $key, 1 );
1386                                 }
1387                         } else {
1388                                 $changed = false;
1389                         }
1390                 }
1391
1392                 # Update user_touched, so that newtalk notifications in the client cache are invalidated
1393                 if ( $changed && $this->getID() ) {
1394                         $dbw->update('user',
1395                                 /*SET*/ array( 'user_touched' => $this->mTouched ),
1396                                 /*WHERE*/ array( 'user_id' => $this->getID() ),
1397                                 $fname);
1398                         $wgMemc->set( "$wgDBname:user:id:{$this->mId}", $this, 86400 );
1399                 }
1400         }
1401
1402         /**
1403          * Checks if a user with the given name exists, returns the ID
1404          */
1405         function idForName() {
1406                 $fname = 'User::idForName';
1407
1408                 $gotid = 0;
1409                 $s = trim( $this->mName );
1410                 if ( 0 == strcmp( '', $s ) ) return 0;
1411
1412                 $dbr =& wfGetDB( DB_SLAVE );
1413                 $id = $dbr->selectField( 'user', 'user_id', array( 'user_name' => $s ), $fname );
1414                 if ( $id === false ) {
1415                         $id = 0;
1416                 }
1417                 return $id;
1418         }
1419
1420         /**
1421          * Add user object to the database
1422          */
1423         function addToDatabase() {
1424                 $fname = 'User::addToDatabase';
1425                 $dbw =& wfGetDB( DB_MASTER );
1426                 $seqVal = $dbw->nextSequenceValue( 'user_user_id_seq' );
1427                 $dbw->insert( 'user',
1428                         array(
1429                                 'user_id' => $seqVal,
1430                                 'user_name' => $this->mName,
1431                                 'user_password' => $this->mPassword,
1432                                 'user_newpassword' => $this->mNewpassword,
1433                                 'user_email' => $this->mEmail,
1434                                 'user_email_authenticated' => $dbw->timestampOrNull( $this->mEmailAuthenticated ),
1435                                 'user_real_name' => $this->mRealName,
1436                                 'user_options' => $this->encodeOptions(),
1437                                 'user_token' => $this->mToken
1438                         ), $fname
1439                 );
1440                 $this->mId = $dbw->insertId();
1441         }
1442
1443         function spreadBlock() {
1444                 global $wgIP;
1445                 # If the (non-anonymous) user is blocked, this function will block any IP address
1446                 # that they successfully log on from.
1447                 $fname = 'User::spreadBlock';
1448
1449                 wfDebug( "User:spreadBlock()\n" );
1450                 if ( $this->mId == 0 ) {
1451                         return;
1452                 }
1453
1454                 $userblock = Block::newFromDB( '', $this->mId );
1455                 if ( !$userblock->isValid() ) {
1456                         return;
1457                 }
1458
1459                 # Check if this IP address is already blocked
1460                 $ipblock = Block::newFromDB( $wgIP );
1461                 if ( $ipblock->isValid() ) {
1462                         # Just update the timestamp
1463                         $ipblock->updateTimestamp();
1464                         return;
1465                 }
1466
1467                 # Make a new block object with the desired properties
1468                 wfDebug( "Autoblocking {$this->mName}@{$wgIP}\n" );
1469                 $ipblock->mAddress = $wgIP;
1470                 $ipblock->mUser = 0;
1471                 $ipblock->mBy = $userblock->mBy;
1472                 $ipblock->mReason = wfMsg( 'autoblocker', $this->getName(), $userblock->mReason );
1473                 $ipblock->mTimestamp = wfTimestampNow();
1474                 $ipblock->mAuto = 1;
1475                 # If the user is already blocked with an expiry date, we don't
1476                 # want to pile on top of that!
1477                 if($userblock->mExpiry) {
1478                         $ipblock->mExpiry = min ( $userblock->mExpiry, Block::getAutoblockExpiry( $ipblock->mTimestamp ));
1479                 } else {
1480                         $ipblock->mExpiry = Block::getAutoblockExpiry( $ipblock->mTimestamp );
1481                 }
1482
1483                 # Insert it
1484                 $ipblock->insert();
1485
1486         }
1487
1488         function getPageRenderingHash() {
1489                 global $wgContLang;
1490                 if( $this->mHash ){
1491                         return $this->mHash;
1492                 }
1493
1494                 // stubthreshold is only included below for completeness,
1495                 // it will always be 0 when this function is called by parsercache.
1496
1497                 $confstr =        $this->getOption( 'math' );
1498                 $confstr .= '!' . $this->getOption( 'stubthreshold' );
1499                 $confstr .= '!' . $this->getOption( 'date' );
1500                 $confstr .= '!' . $this->getOption( 'numberheadings' );
1501                 $confstr .= '!' . $this->getOption( 'language' );
1502                 $confstr .= '!' . $this->getOption( 'thumbsize' );
1503                 // add in language specific options, if any
1504                 $extra = $wgContLang->getExtraHashOptions();
1505                 $confstr .= $extra;
1506
1507                 $this->mHash = $confstr;
1508                 return $confstr ;
1509         }
1510
1511         function isAllowedToCreateAccount() {
1512                 return $this->isAllowed( 'createaccount' );
1513         }
1514
1515         /**
1516          * Set mDataLoaded, return previous value
1517          * Use this to prevent DB access in command-line scripts or similar situations
1518          */
1519         function setLoaded( $loaded ) {
1520                 return wfSetVar( $this->mDataLoaded, $loaded );
1521         }
1522
1523         /**
1524          * Get this user's personal page title.
1525          *
1526          * @return Title
1527          * @access public
1528          */
1529         function getUserPage() {
1530                 return Title::makeTitle( NS_USER, $this->mName );
1531         }
1532
1533         /**
1534          * Get this user's talk page title.
1535          *
1536          * @return Title
1537          * @access public
1538          */
1539         function getTalkPage() {
1540                 $title = $this->getUserPage();
1541                 return $title->getTalkPage();
1542         }
1543
1544         /**
1545          * @static
1546          */
1547         function getMaxID() {
1548                 $dbr =& wfGetDB( DB_SLAVE );
1549                 return $dbr->selectField( 'user', 'max(user_id)', false );
1550         }
1551
1552         /**
1553          * Determine whether the user is a newbie. Newbies are either
1554          * anonymous IPs, or the 1% most recently created accounts.
1555          * Bots and sysops are excluded.
1556          * @return bool True if it is a newbie.
1557          */
1558         function isNewbie() {
1559                 return $this->isAnon() || $this->mId > User::getMaxID() * 0.99 && !$this->isAllowed( 'delete' ) && !$this->isBot();
1560         }
1561
1562         /**
1563          * Check to see if the given clear-text password is one of the accepted passwords
1564          * @param string $password User password.
1565          * @return bool True if the given password is correct otherwise False.
1566          */
1567         function checkPassword( $password ) {
1568                 global $wgAuth, $wgMinimalPasswordLength;
1569                 $this->loadFromDatabase();
1570
1571                 // Even though we stop people from creating passwords that
1572                 // are shorter than this, doesn't mean people wont be able
1573                 // to. Certain authentication plugins do NOT want to save
1574                 // domain passwords in a mysql database, so we should
1575                 // check this (incase $wgAuth->strict() is false).
1576                 if( strlen( $password ) < $wgMinimalPasswordLength ) {
1577                         return false;
1578                 }
1579
1580                 if( $wgAuth->authenticate( $this->getName(), $password ) ) {
1581                         return true;
1582                 } elseif( $wgAuth->strict() ) {
1583                         /* Auth plugin doesn't allow local authentication */
1584                         return false;
1585                 }
1586                 $ep = $this->encryptPassword( $password );
1587                 if ( 0 == strcmp( $ep, $this->mPassword ) ) {
1588                         return true;
1589                 } elseif ( ($this->mNewpassword != '') && (0 == strcmp( $ep, $this->mNewpassword )) ) {
1590                         return true;
1591                 } elseif ( function_exists( 'iconv' ) ) {
1592                         # Some wikis were converted from ISO 8859-1 to UTF-8, the passwords can't be converted
1593                         # Check for this with iconv
1594                         $cp1252hash = $this->encryptPassword( iconv( 'UTF-8', 'WINDOWS-1252', $password ) );
1595                         if ( 0 == strcmp( $cp1252hash, $this->mPassword ) ) {
1596                                 return true;
1597                         }
1598                 }
1599                 return false;
1600         }
1601
1602         /**
1603          * Initialize (if necessary) and return a session token value
1604          * which can be used in edit forms to show that the user's
1605          * login credentials aren't being hijacked with a foreign form
1606          * submission.
1607          *
1608          * @param mixed $salt - Optional function-specific data for hash.
1609          *                      Use a string or an array of strings.
1610          * @return string
1611          * @access public
1612          */
1613         function editToken( $salt = '' ) {
1614                 if( !isset( $_SESSION['wsEditToken'] ) ) {
1615                         $token = $this->generateToken();
1616                         $_SESSION['wsEditToken'] = $token;
1617                 } else {
1618                         $token = $_SESSION['wsEditToken'];
1619                 }
1620                 if( is_array( $salt ) ) {
1621                         $salt = implode( '|', $salt );
1622                 }
1623                 return md5( $token . $salt );
1624         }
1625
1626         /**
1627          * Generate a hex-y looking random token for various uses.
1628          * Could be made more cryptographically sure if someone cares.
1629          * @return string
1630          */
1631         function generateToken( $salt = '' ) {
1632                 $token = dechex( mt_rand() ) . dechex( mt_rand() );
1633                 return md5( $token . $salt );
1634         }
1635
1636         /**
1637          * Check given value against the token value stored in the session.
1638          * A match should confirm that the form was submitted from the
1639          * user's own login session, not a form submission from a third-party
1640          * site.
1641          *
1642          * @param string $val - the input value to compare
1643          * @param string $salt - Optional function-specific data for hash
1644          * @return bool
1645          * @access public
1646          */
1647         function matchEditToken( $val, $salt = '' ) {
1648                 return ( $val == $this->editToken( $salt ) );
1649         }
1650
1651         /**
1652          * Generate a new e-mail confirmation token and send a confirmation
1653          * mail to the user's given address.
1654          *
1655          * @return mixed True on success, a WikiError object on failure.
1656          */
1657         function sendConfirmationMail() {
1658                 global $wgIP, $wgContLang;
1659                 $url = $this->confirmationTokenUrl( $expiration );
1660                 return $this->sendMail( wfMsg( 'confirmemail_subject' ),
1661                         wfMsg( 'confirmemail_body',
1662                                 $wgIP,
1663                                 $this->getName(),
1664                                 $url,
1665                                 $wgContLang->timeanddate( $expiration, false ) ) );
1666         }
1667
1668         /**
1669          * Send an e-mail to this user's account. Does not check for
1670          * confirmed status or validity.
1671          *
1672          * @param string $subject
1673          * @param string $body
1674          * @param strong $from Optional from address; default $wgPasswordSender will be used otherwise.
1675          * @return mixed True on success, a WikiError object on failure.
1676          */
1677         function sendMail( $subject, $body, $from = null ) {
1678                 if( is_null( $from ) ) {
1679                         global $wgPasswordSender;
1680                         $from = $wgPasswordSender;
1681                 }
1682
1683                 require_once( 'UserMailer.php' );
1684                 $error = userMailer( $this->getEmail(), $from, $subject, $body );
1685
1686                 if( $error == '' ) {
1687                         return true;
1688                 } else {
1689                         return new WikiError( $error );
1690                 }
1691         }
1692
1693         /**
1694          * Generate, store, and return a new e-mail confirmation code.
1695          * A hash (unsalted since it's used as a key) is stored.
1696          * @param &$expiration mixed output: accepts the expiration time
1697          * @return string
1698          * @access private
1699          */
1700         function confirmationToken( &$expiration ) {
1701                 $fname = 'User::confirmationToken';
1702
1703                 $now = time();
1704                 $expires = $now + 7 * 24 * 60 * 60;
1705                 $expiration = wfTimestamp( TS_MW, $expires );
1706
1707                 $token = $this->generateToken( $this->mId . $this->mEmail . $expires );
1708                 $hash = md5( $token );
1709
1710                 $dbw =& wfGetDB( DB_MASTER );
1711                 $dbw->update( 'user',
1712                         array( 'user_email_token'         => $hash,
1713                                'user_email_token_expires' => $dbw->timestamp( $expires ) ),
1714                         array( 'user_id'                  => $this->mId ),
1715                         $fname );
1716
1717                 return $token;
1718         }
1719
1720         /**
1721          * Generate and store a new e-mail confirmation token, and return
1722          * the URL the user can use to confirm.
1723          * @param &$expiration mixed output: accepts the expiration time
1724          * @return string
1725          * @access private
1726          */
1727         function confirmationTokenUrl( &$expiration ) {
1728                 $token = $this->confirmationToken( $expiration );
1729                 $title = Title::makeTitle( NS_SPECIAL, 'Confirmemail/' . $token );
1730                 return $title->getFullUrl();
1731         }
1732
1733         /**
1734          * Mark the e-mail address confirmed and save.
1735          */
1736         function confirmEmail() {
1737                 $this->loadFromDatabase();
1738                 $this->mEmailAuthenticated = wfTimestampNow();
1739                 $this->saveSettings();
1740                 return true;
1741         }
1742
1743         /**
1744          * Is this user allowed to send e-mails within limits of current
1745          * site configuration?
1746          * @return bool
1747          */
1748         function canSendEmail() {
1749                 return $this->isEmailConfirmed();
1750         }
1751
1752         /**
1753          * Is this user allowed to receive e-mails within limits of current
1754          * site configuration?
1755          * @return bool
1756          */
1757         function canReceiveEmail() {
1758                 return $this->canSendEmail() && !$this->getOption( 'disablemail' );
1759         }
1760
1761         /**
1762          * Is this user's e-mail address valid-looking and confirmed within
1763          * limits of the current site configuration?
1764          *
1765          * If $wgEmailAuthentication is on, this may require the user to have
1766          * confirmed their address by returning a code or using a password
1767          * sent to the address from the wiki.
1768          *
1769          * @return bool
1770          */
1771         function isEmailConfirmed() {
1772                 global $wgEmailAuthentication;
1773                 $this->loadFromDatabase();
1774                 if( $this->isAnon() )
1775                         return false;
1776                 if( !$this->isValidEmailAddr( $this->mEmail ) )
1777                         return false;
1778                 if( $wgEmailAuthentication && !$this->getEmailAuthenticationTimestamp() )
1779                         return false;
1780                 return true;
1781         }
1782
1783         /**
1784          * @param array $groups list of groups
1785          * @return array list of permission key names for given groups combined
1786          * @static
1787          */
1788         function getGroupPermissions( $groups ) {
1789                 global $wgGroupPermissions;
1790                 $rights = array();
1791                 foreach( $groups as $group ) {
1792                         if( isset( $wgGroupPermissions[$group] ) ) {
1793                                 $rights = array_merge( $rights,
1794                                         array_keys( array_filter( $wgGroupPermissions[$group] ) ) );
1795                         }
1796                 }
1797                 return $rights;
1798         }
1799
1800         /**
1801          * @param string $group key name
1802          * @return string localized descriptive name, if provided
1803          * @static
1804          */
1805         function getGroupName( $group ) {
1806                 $key = "group-$group-name";
1807                 $name = wfMsg( $key );
1808                 if( $name == '' || $name == "&lt;$key&gt;" ) {
1809                         return $group;
1810                 } else {
1811                         return $name;
1812                 }
1813         }
1814
1815         /**
1816          * Return the set of defined explicit groups.
1817          * The * and 'user' groups are not included.
1818          * @return array
1819          * @static
1820          */
1821         function getAllGroups() {
1822                 global $wgGroupPermissions;
1823                 return array_diff(
1824                         array_keys( $wgGroupPermissions ),
1825                         array( '*', 'user' ) );
1826         }
1827
1828 }
1829
1830 ?>