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