includes/User.php

   1 <?php
   2 /**
   3  * See user.doc
   4  *
   5  * @package MediaWiki
   6  */
   7
   8 /**
   9  *
  10  */
  11 require_once( 'WatchedItem.php' );
  12 require_once( 'Group.php' );
  13
  14 # Number of characters in user_token field
  15 define( 'USER_TOKEN_LENGTH', 32 );
  16
  17 /**
  18  *
  19  * @package MediaWiki
  20  */
  21 class User {
  22         /**#@+
  23          * @access private
  24          */
  25         var $mId, $mName, $mPassword, $mEmail, $mNewtalk;
  26         var $mEmailAuthenticationtimestamp;
  27         var $mRights, $mOptions;
  28         var $mDataLoaded, $mNewpassword;
  29         var $mSkin;
  30         var $mBlockedby, $mBlockreason;
  31         var $mTouched;
  32         var $mToken;
  33         var $mRealName;
  34         var $mHash;
  35         /** Array of group id the user belong to */
  36         var $mGroups;
  37         /**#@-*/
  38
  39         /** Construct using User:loadDefaults() */
  40         function User() {
  41                 $this->loadDefaults();
  42         }
  43
  44         /**
  45          * Static factory method
  46          * @static
  47          * @param string $name Username, validated by Title:newFromText()
  48          */
  49         function newFromName( $name ) {
  50                 $u = new User();
  51
  52                 # Clean up name according to title rules
  53
  54                 $t = Title::newFromText( $name );
  55                 if( is_null( $t ) ) {
  56                         return NULL;
  57                 } else {
  58                         $u->setName( $t->getText() );
  59                         $u->setId( $u->idFromName( $t->getText() ) );
  60                         return $u;
  61                 }
  62         }
  63
  64         /**
  65          * Get username given an id.
  66          * @param integer $id Database user id
  67          * @return string Nickname of a user
  68          * @static
  69          */
  70         function whoIs( $id )   {
  71                 $dbr =& wfGetDB( DB_SLAVE );
  72                 return $dbr->selectField( 'user', 'user_name', array( 'user_id' => $id ) );
  73         }
  74
  75         /**
  76          * Get real username given an id.
  77          * @param integer $id Database user id
  78          * @return string Realname of a user
  79          * @static
  80          */
  81         function whoIsReal( $id )       {
  82                 $dbr =& wfGetDB( DB_SLAVE );
  83                 return $dbr->selectField( 'user', 'user_real_name', array( 'user_id' => $id ) );
  84         }
  85
  86         /**
  87          * Get database id given a user name
  88          * @param string $name Nickname of a user
  89          * @return integer|null Database user id (null: if non existent
  90          * @static
  91          */
  92         function idFromName( $name ) {
  93                 $fname = "User::idFromName";
  94
  95                 $nt = Title::newFromText( $name );
  96                 if( is_null( $nt ) ) {
  97                         # Illegal name
  98                         return null;
  99                 }
 100                 $dbr =& wfGetDB( DB_SLAVE );
 101                 $s = $dbr->selectRow( 'user', array( 'user_id' ), array( 'user_name' => $nt->getText() ), $fname );
 102
 103                 if ( $s === false ) {
 104                         return 0;
 105                 } else {
 106                         return $s->user_id;
 107                 }
 108         }
 109
 110         /**
 111          * does the string match an anonymous user IP address?
 112          * @param string $name Nickname of a user
 113          * @static
 114          */
 115         function isIP( $name ) {
 116                 return preg_match("/^\d{1,3}\.\d{1,3}.\d{1,3}\.\d{1,3}$/",$name);
 117         }
 118
 119         /**
 120          * does the string match roughly an email address ?
 121          * @param string $addr email address
 122          * @static
 123          */
 124         function isValidEmailAddr ( $addr ) {
 125                 return preg_match( '/^([a-z0-9_.-]+([a-z0-9_.-]+)*\@[a-z0-9_-]+([a-z0-9_.-]+)*([a-z.]{2,})+)$/', strtolower($addr));
 126         }
 127
 128         /**
 129          * probably return a random password
 130          * @return string probably a random password
 131          * @static
 132          * @todo Check what is doing really [AV]
 133          */
 134         function randomPassword() {
 135                 $pwchars = 'ABCDEFGHJKLMNPQRSTUVWXYZabcdefghjkmnpqrstuvwxyz';
 136                 $l = strlen( $pwchars ) - 1;
 137
 138                 $np = $pwchars{mt_rand( 0, $l )} . $pwchars{mt_rand( 0, $l )} .
 139                   $pwchars{mt_rand( 0, $l )} . chr( mt_rand(48, 57) ) .
 140                   $pwchars{mt_rand( 0, $l )} . $pwchars{mt_rand( 0, $l )} .
 141                   $pwchars{mt_rand( 0, $l )};
 142                 return $np;
 143         }
 144
 145         /**
 146          * Set properties to default
 147          * Used at construction. It will load per language default settings only
 148          * if we have an available language object.
 149          */
 150         function loadDefaults() {
 151                 static $n=0;
 152                 $n++;
 153                 $fname = 'User::loadDefaults' . $n;
 154                 wfProfileIn( $fname );
 155
 156                 global $wgContLang, $wgIP;
 157                 global $wgNamespacesToBeSearchedDefault;
 158
 159                 $this->mId = 0;
 160                 $this->mNewtalk = -1;
 161                 $this->mName = $wgIP;
 162                 $this->mRealName = $this->mEmail = '';
 163                 $this->mEmailAuthenticationtimestamp = 0;
 164                 $this->mPassword = $this->mNewpassword = '';
 165                 $this->mRights = array();
 166                 $this->mGroups = array();
 167                 // Getting user defaults only if we have an available language
 168                 if( isset( $wgContLang ) ) {
 169                         $this->loadDefaultFromLanguage();
 170                 }
 171
 172                 foreach( $wgNamespacesToBeSearchedDefault as $nsnum => $val ) {
 173                         $this->mOptions['searchNs'.$nsnum] = $val;
 174                 }
 175                 unset( $this->mSkin );
 176                 $this->mDataLoaded = false;
 177                 $this->mBlockedby = -1; # Unset
 178                 $this->mTouched = '0'; # Allow any pages to be cached
 179                 $this->setToken(); # Random
 180                 $this->mHash = false;
 181                 wfProfileOut( $fname );
 182         }
 183
 184         /**
 185          * Used to load user options from a language.
 186          * This is not in loadDefault() cause we sometime create user before having
 187          * a language object.
 188          */
 189         function loadDefaultFromLanguage(){
 190                 $this->mOptions = User::getDefaultOptions();
 191         }
 192
 193         /**
 194          * Combine the language default options with any site-specific options
 195          * and add the default language variants.
 196          *
 197          * @return array
 198          * @static
 199          * @access private
 200          */
 201         function getDefaultOptions() {
 202                 /**
 203                  * Site defaults will override the global/language defaults
 204                  */
 205                 global $wgContLang, $wgDefaultUserOptions;
 206                 $defOpt = $wgDefaultUserOptions + $wgContLang->getDefaultUserOptions();
 207
 208                 /**
 209                  * default language setting
 210                  */
 211                 $variant = $wgContLang->getPreferredVariant();
 212                 $defOpt['variant'] = $variant;
 213                 $defOpt['language'] = $variant;
 214
 215                 return $defOpt;
 216         }
 217
 218         /**
 219          * Get a given default option value.
 220          *
 221          * @param string $opt
 222          * @return string
 223          * @static
 224          * @access public
 225          */
 226         function getDefaultOption( $opt ) {
 227                 $defOpts = User::getDefaultOptions();
 228                 if( isset( $defOpts[$opt] ) ) {
 229                         return $defOpts[$opt];
 230                 } else {
 231                         return '';
 232                 }
 233         }
 234
 235         /**
 236          * Get blocking information
 237          * @access private
 238          */
 239         function getBlockedStatus() {
 240                 global $wgIP, $wgBlockCache, $wgProxyList;
 241
 242                 if ( -1 != $this->mBlockedby ) { return; }
 243
 244                 $this->mBlockedby = 0;
 245
 246                 # User blocking
 247                 if ( $this->mId ) {
 248                         $block = new Block();
 249                         if ( $block->load( $wgIP , $this->mId ) ) {
 250                                 $this->mBlockedby = $block->mBy;
 251                                 $this->mBlockreason = $block->mReason;
 252                         }
 253                 }
 254
 255                 # IP/range blocking
 256                 if ( !$this->mBlockedby ) {
 257                         $block = $wgBlockCache->get( $wgIP );
 258                         if ( $block !== false ) {
 259                                 $this->mBlockedby = $block->mBy;
 260                                 $this->mBlockreason = $block->mReason;
 261                         }
 262                 }
 263
 264                 # Proxy blocking
 265                 if ( !$this->mBlockedby ) {
 266                         if ( array_key_exists( $wgIP, $wgProxyList ) ) {
 267                                 $this->mBlockreason = wfMsg( 'proxyblockreason' );
 268                                 $this->mBlockedby = "Proxy blocker";
 269                         }
 270                 }
 271         }
 272
 273         /**
 274          * Check if user is blocked
 275          * @return bool True if blocked, false otherwise
 276          */
 277         function isBlocked() {
 278                 $this->getBlockedStatus();
 279                 if ( 0 === $this->mBlockedby ) { return false; }
 280                 return true;
 281         }
 282
 283         /**
 284          * Get name of blocker
 285          * @return string name of blocker
 286          */
 287         function blockedBy() {
 288                 $this->getBlockedStatus();
 289                 return $this->mBlockedby;
 290         }
 291
 292         /**
 293          * Get blocking reason
 294          * @return string Blocking reason
 295          */
 296         function blockedFor() {
 297                 $this->getBlockedStatus();
 298                 return $this->mBlockreason;
 299         }
 300
 301         /**
 302          * Initialise php session
 303          */
 304         function SetupSession() {
 305                 global $wgSessionsInMemcached, $wgCookiePath, $wgCookieDomain;
 306                 if( $wgSessionsInMemcached ) {
 307                         require_once( 'MemcachedSessions.php' );
 308                 } elseif( 'files' != ini_get( 'session.save_handler' ) ) {
 309                         # If it's left on 'user' or another setting from another
 310                         # application, it will end up failing. Try to recover.
 311                         ini_set ( 'session.save_handler', 'files' );
 312                 }
 313                 session_set_cookie_params( 0, $wgCookiePath, $wgCookieDomain );
 314                 session_cache_limiter( 'private, must-revalidate' );
 315                 @session_start();
 316         }
 317
 318         /**
 319          * Read datas from session
 320          * @static
 321          */
 322         function loadFromSession() {
 323                 global $wgMemc, $wgDBname;
 324
 325                 if ( isset( $_SESSION['wsUserID'] ) ) {
 326                         if ( 0 != $_SESSION['wsUserID'] ) {
 327                                 $sId = $_SESSION['wsUserID'];
 328                         } else {
 329                                 return new User();
 330                         }
 331                 } else if ( isset( $_COOKIE["{$wgDBname}UserID"] ) ) {
 332                         $sId = IntVal( $_COOKIE["{$wgDBname}UserID"] );
 333                         $_SESSION['wsUserID'] = $sId;
 334                 } else {
 335                         return new User();
 336                 }
 337                 if ( isset( $_SESSION['wsUserName'] ) ) {
 338                         $sName = $_SESSION['wsUserName'];
 339                 } else if ( isset( $_COOKIE["{$wgDBname}UserName"] ) ) {
 340                         $sName = $_COOKIE["{$wgDBname}UserName"];
 341                         $_SESSION['wsUserName'] = $sName;
 342                 } else {
 343                         return new User();
 344                 }
 345
 346                 $passwordCorrect = FALSE;
 347                 $user = $wgMemc->get( $key = "$wgDBname:user:id:$sId" );
 348                 if($makenew = !$user) {
 349                         wfDebug( "User::loadFromSession() unable to load from memcached\n" );
 350                         $user = new User();
 351                         $user->mId = $sId;
 352                         $user->loadFromDatabase();
 353                 } else {
 354                         wfDebug( "User::loadFromSession() got from cache!\n" );
 355                 }
 356
 357                 if ( isset( $_SESSION['wsToken'] ) ) {
 358                         $passwordCorrect = $_SESSION['wsToken'] == $user->mToken;
 359                 } else if ( isset( $_COOKIE["{$wgDBname}Token"] ) ) {
 360                         $passwordCorrect = $user->mToken == $_COOKIE["{$wgDBname}Token"];
 361                 } else {
 362                         return new User(); # Can't log in from session
 363                 }
 364
 365                 if ( ( $sName == $user->mName ) && $passwordCorrect ) {
 366                         if($makenew) {
 367                                 if($wgMemc->set( $key, $user ))
 368                                         wfDebug( "User::loadFromSession() successfully saved user\n" );
 369                                 else
 370                                         wfDebug( "User::loadFromSession() unable to save to memcached\n" );
 371                         }
 372                         $user->spreadBlock();
 373                         return $user;
 374                 }
 375                 return new User(); # Can't log in from session
 376         }
 377
 378         /**
 379          * Load a user from the database
 380          */
 381         function loadFromDatabase() {
 382                 global $wgCommandLineMode, $wgAnonGroupId, $wgLoggedInGroupId;
 383                 $fname = "User::loadFromDatabase";
 384                 if ( $this->mDataLoaded || $wgCommandLineMode ) {
 385                         return;
 386                 }
 387
 388                 # Paranoia
 389                 $this->mId = IntVal( $this->mId );
 390
 391                 /** Anonymous user */
 392                 if(!$this->mId) {
 393                         /** Get rights */
 394                         $anong = Group::newFromId($wgAnonGroupId);
 395                         if (!$anong)
 396                                 wfDebugDieBacktrace("Please update your database schema "
 397                                         ."and populate initial group data from "
 398                                         ."maintenance/archives patches");
 399                         $anong->loadFromDatabase();
 400                         $this->mRights = explode(',', $anong->getRights());
 401                         $this->mDataLoaded = true;
 402                         return;
 403                 } # the following stuff is for non-anonymous users only
 404
 405                 $dbr =& wfGetDB( DB_SLAVE );
 406                 $s = $dbr->selectRow( 'user', array( 'user_name','user_password','user_newpassword','user_email',
 407                   'user_emailauthenticationtimestamp',
 408                   'user_real_name','user_options','user_touched', 'user_token' ),
 409                   array( 'user_id' => $this->mId ), $fname );
 410
 411                 if ( $s !== false ) {
 412                         $this->mName = $s->user_name;
 413                         $this->mEmail = $s->user_email;
 414                         $this->mEmailAuthenticationtimestamp = $s->user_emailauthenticationtimestamp;
 415                         $this->mRealName = $s->user_real_name;
 416                         $this->mPassword = $s->user_password;
 417                         $this->mNewpassword = $s->user_newpassword;
 418                         $this->decodeOptions( $s->user_options );
 419                         $this->mTouched = wfTimestamp(TS_MW,$s->user_touched);
 420                         $this->mToken = $s->user_token;
 421
 422                         // Get groups id
 423                         $res = $dbr->select( 'user_groups', array( 'ug_group' ), array( 'ug_user' => $this->mId ) );
 424
 425                         while($group = $dbr->fetchRow($res)) {
 426                                 $this->mGroups[] = $group[0];
 427                         }
 428
 429                         // add the default group for logged in user
 430                         $this->mGroups[] = $wgLoggedInGroupId;
 431
 432                         $this->mRights = array();
 433                         // now we merge groups rights to get this user rights
 434                         foreach($this->mGroups as $aGroupId) {
 435                                 $g = Group::newFromId($aGroupId);
 436                                 $g->loadFromDatabase();
 437                                 $this->mRights = array_merge($this->mRights, explode(',', $g->getRights()));
 438                         }
 439
 440                         // array merge duplicate rights which are part of several groups
 441                         $this->mRights = array_unique($this->mRights);
 442
 443                         $dbr->freeResult($res);
 444                 }
 445
 446                 $this->mDataLoaded = true;
 447         }
 448
 449         function getID() { return $this->mId; }
 450         function setID( $v ) {
 451                 $this->mId = $v;
 452                 $this->mDataLoaded = false;
 453         }
 454
 455         function getName() {
 456                 $this->loadFromDatabase();
 457                 return $this->mName;
 458         }
 459
 460         function setName( $str ) {
 461                 $this->loadFromDatabase();
 462                 $this->mName = $str;
 463         }
 464
 465         function getNewtalk() {
 466                 $fname = 'User::getNewtalk';
 467                 $this->loadFromDatabase();
 468
 469                 # Load the newtalk status if it is unloaded (mNewtalk=-1)
 470                 if ( $this->mNewtalk == -1 ) {
 471                         $this->mNewtalk=0; # reset talk page status
 472                         $dbr =& wfGetDB( DB_SLAVE );
 473                         extract( $dbr->tableNames( 'watchlist' ) );
 474                         if($this->mId) {
 475                                 $sql = "SELECT wl_user FROM $watchlist
 476                                         WHERE wl_title='" . $dbr->strencode( str_replace( ' ', '_', $this->mName) )."'  AND wl_namespace = " . NS_USER_TALK .
 477                                         " AND wl_user=" . $this->mId . " AND wl_notificationtimestamp != 0";
 478                                 $res = $dbr->query( $sql,'User::get:Newtalk');
 479
 480                                 if ( $dbr->numRows($res)>0 ) {
 481                                         $this->mNewtalk= 1;
 482                                 }
 483                                 $dbr->freeResult( $res );
 484                         } else {
 485                                 global $wgDBname, $wgMemc;
 486                                 $key = "$wgDBname:newtalk:ip:{$this->mName}";
 487                                 $newtalk = $wgMemc->get( $key );
 488                                 if( ! is_integer( $newtalk ) ){
 489                                         extract( $dbr->tableNames( 'watchlist' ) );
 490                                         $sql = "SELECT wl_user FROM $watchlist
 491                                                 WHERE wl_title='" . $dbr->strencode( str_replace( ' ', '_', $this->mName) )."'  AND wl_namespace = " . NS_USER_TALK .
 492                                                 " AND wl_user =" . 0 . " AND wl_notificationtimestamp != 0";
 493                                         $res = $dbr->query( $sql,'User::getNewtalk');
 494
 495                                         $this->mNewtalk = $dbr->numRows( $res ) > 0 ? 1 : 0;
 496                                         $dbr->freeResult( $res );
 497
 498                                         $wgMemc->set( $key, $this->mNewtalk, time() ); // + 1800 );
 499                                 } else {
 500                                         $this->mNewtalk = $newtalk ? 1 : 0;
 501                                 }
 502                         }
 503                 }
 504
 505                 return ( 0 != $this->mNewtalk );
 506         }
 507
 508         function setNewtalk( $val ) {
 509                 $this->loadFromDatabase();
 510                 $this->mNewtalk = $val;
 511                 $this->invalidateCache();
 512         }
 513
 514         function invalidateCache() {
 515                 $this->loadFromDatabase();
 516                 $this->mTouched = wfTimestampNow();
 517                 # Don't forget to save the options after this or
 518                 # it won't take effect!
 519         }
 520
 521         function validateCache( $timestamp ) {
 522                 $this->loadFromDatabase();
 523                 return ($timestamp >= $this->mTouched);
 524         }
 525
 526         /**
 527          * Salt a password.
 528          * Will only be salted if $wgPasswordSalt is true
 529          * @param string Password.
 530          * @return string Salted password or clear password.
 531          */
 532         function addSalt( $p ) {
 533                 global $wgPasswordSalt;
 534                 if($wgPasswordSalt)
 535                         return md5( "{$this->mId}-{$p}" );
 536                 else
 537                         return $p;
 538         }
 539
 540         /**
 541          * Encrypt a password.
 542          * It can eventuall salt a password @see User::addSalt()
 543          * @param string $p clear Password.
 544          * @param string Encrypted password.
 545          */
 546         function encryptPassword( $p ) {
 547                 return $this->addSalt( md5( $p ) );
 548         }
 549
 550         # Set the password and reset the random token
 551         function setPassword( $str ) {
 552                 $this->loadFromDatabase();
 553                 $this->setToken();
 554                 $this->mPassword = $this->encryptPassword( $str );
 555                 $this->mNewpassword = '';
 556         }
 557
 558         # Set the random token (used for persistent authentication)
 559         function setToken( $token = false ) {
 560                 if ( !$token ) {
 561                         $this->mToken = '';
 562                         # Take random data from PRNG
 563                         # This is reasonably secure if the PRNG has been seeded correctly
 564                         for ($i = 0; $i<USER_TOKEN_LENGTH / 4; $i++) {
 565                                 $this->mToken .= sprintf( "%04X", mt_rand( 0, 65535 ) );
 566                         }
 567                 } else {
 568                         $this->mToken = $token;
 569                 }
 570         }
 571
 572
 573         function setCookiePassword( $str ) {
 574                 $this->loadFromDatabase();
 575                 $this->mCookiePassword = md5( $str );
 576         }
 577
 578         function setNewpassword( $str ) {
 579                 $this->loadFromDatabase();
 580                 $this->mNewpassword = $this->encryptPassword( $str );
 581         }
 582
 583         function getEmail() {
 584                 $this->loadFromDatabase();
 585                 return $this->mEmail;
 586         }
 587
 588         function getEmailAuthenticationtimestamp() {
 589                 $this->loadFromDatabase();
 590                 return $this->mEmailAuthenticationtimestamp;
 591         }
 592
 593         function setEmail( $str ) {
 594                 $this->loadFromDatabase();
 595                 $this->mEmail = $str;
 596         }
 597
 598         function getRealName() {
 599                 $this->loadFromDatabase();
 600                 return $this->mRealName;
 601         }
 602
 603         function setRealName( $str ) {
 604                 $this->loadFromDatabase();
 605                 $this->mRealName = $str;
 606         }
 607
 608         function getOption( $oname ) {
 609                 $this->loadFromDatabase();
 610                 if ( array_key_exists( $oname, $this->mOptions ) ) {
 611                         return $this->mOptions[$oname];
 612                 } else {
 613                         return '';
 614                 }
 615         }
 616
 617         function setOption( $oname, $val ) {
 618                 $this->loadFromDatabase();
 619                 if ( $oname == 'skin' ) {
 620                         # Clear cached skin, so the new one displays immediately in Special:Preferences
 621                         unset( $this->mSkin );
 622                 }
 623                 $this->mOptions[$oname] = $val;
 624                 $this->invalidateCache();
 625         }
 626
 627         function getRights() {
 628                 $this->loadFromDatabase();
 629                 return $this->mRights;
 630         }
 631
 632         function addRight( $rname )     {
 633                 $this->loadFromDatabase();
 634                 array_push( $this->mRights, $rname );
 635                 $this->invalidateCache();
 636         }
 637
 638         function getGroups() {
 639                 $this->loadFromDatabase();
 640                 return $this->mGroups;
 641         }
 642
 643         function setGroups($groups) {
 644                 $this->loadFromDatabase();
 645                 $this->mGroups = $groups;
 646                 $this->invalidateCache();
 647         }
 648
 649         /**
 650          * Check if a user is sysop
 651          * Die with backtrace. Use User:isAllowed() instead.
 652          * @deprecated
 653          */
 654         function isSysop() {
 655         /**
 656                 $this->loadFromDatabase();
 657                 if ( 0 == $this->mId ) { return false; }
 658
 659                 return in_array( 'sysop', $this->mRights );
 660         */
 661         wfDebugDieBacktrace("User::isSysop() is deprecated. Use User::isAllowed() instead");
 662         }
 663
 664         /** @deprecated */
 665         function isDeveloper() {
 666         /**
 667                 $this->loadFromDatabase();
 668                 if ( 0 == $this->mId ) { return false; }
 669
 670                 return in_array( 'developer', $this->mRights );
 671         */
 672         wfDebugDieBacktrace("User::isDeveloper() is deprecated. Use User::isAllowed() instead");
 673         }
 674
 675         /** @deprecated */
 676         function isBureaucrat() {
 677         /**
 678                 $this->loadFromDatabase();
 679                 if ( 0 == $this->mId ) { return false; }
 680
 681                 return in_array( 'bureaucrat', $this->mRights );
 682         */
 683         wfDebugDieBacktrace("User::isBureaucrat() is deprecated. Use User::isAllowed() instead");
 684         }
 685
 686         /**
 687          * Whether the user is a bot
 688          * @todo need to be migrated to the new user level management sytem
 689          */
 690         function isBot() {
 691                 $this->loadFromDatabase();
 692
 693                 # Why was this here? I need a UID=0 conversion script [TS]
 694                 # if ( 0 == $this->mId ) { return false; }
 695
 696                 return in_array( 'bot', $this->mRights );
 697         }
 698
 699         /**
 700          * Check if user is allowed to access a feature / make an action
 701          * @param string $action Action to be checked (see $wgAvailableRights in Defines.php for possible actions).
 702          * @return boolean True: action is allowed, False: action should not be allowed
 703          */
 704         function isAllowed($action='') {
 705                 $this->loadFromDatabase();
 706                 return in_array( $action , $this->mRights );
 707         }
 708
 709         /**
 710          * Load a skin if it doesn't exist or return it
 711          * @todo FIXME : need to check the old failback system [AV]
 712          */
 713         function &getSkin() {
 714                 global $IP;
 715                 if ( ! isset( $this->mSkin ) ) {
 716                         $fname = 'User::getSkin';
 717                         wfProfileIn( $fname );
 718
 719                         # get all skin names available
 720                         $skinNames = Skin::getSkinNames();
 721
 722                         # get the user skin
 723                         $userSkin = $this->getOption( 'skin' );
 724                         if ( $userSkin == '' ) { $userSkin = 'standard'; }
 725
 726                         if ( !isset( $skinNames[$userSkin] ) ) {
 727                                 # in case the user skin could not be found find a replacement
 728                                 $fallback = array(
 729                                         0 => 'Standard',
 730                                         1 => 'Nostalgia',
 731                                         2 => 'CologneBlue');
 732                                 # if phptal is enabled we should have monobook skin that
 733                                 # superseed the good old SkinStandard.
 734                                 if ( isset( $skinNames['monobook'] ) ) {
 735                                         $fallback[0] = 'MonoBook';
 736                                 }
 737
 738                                 if(is_numeric($userSkin) && isset( $fallback[$userSkin]) ){
 739                                         $sn = $fallback[$userSkin];
 740                                 } else {
 741                                         $sn = 'Standard';
 742                                 }
 743                         } else {
 744                                 # The user skin is available
 745                                 $sn = $skinNames[$userSkin];
 746                         }
 747
 748                         # Grab the skin class and initialise it. Each skin checks for PHPTal
 749                         # and will not load if it's not enabled.
 750                         require_once( $IP.'/skins/'.$sn.'.php' );
 751
 752                         # Check if we got if not failback to default skin
 753                         $className = 'Skin'.$sn;
 754                         if( !class_exists( $className ) ) {
 755                                 # DO NOT die if the class isn't found. This breaks maintenance
 756                                 # scripts and can cause a user account to be unrecoverable
 757                                 # except by SQL manipulation if a previously valid skin name
 758                                 # is no longer valid.
 759                                 $className = 'SkinStandard';
 760                                 require_once( $IP.'/skins/Standard.php' );
 761                         }
 762                         $this->mSkin =& new $className;
 763                         wfProfileOut( $fname );
 764                 }
 765                 return $this->mSkin;
 766         }
 767
 768         /**#@+
 769          * @param string $title Article title to look at
 770          */
 771
 772         /**
 773          * Check watched status of an article
 774          * @return bool True if article is watched
 775          */
 776         function isWatched( $title ) {
 777                 $wl = WatchedItem::fromUserTitle( $this, $title );
 778                 return $wl->isWatched();
 779         }
 780
 781         /**
 782          * Watch an article
 783          */
 784         function addWatch( $title ) {
 785                 $wl = WatchedItem::fromUserTitle( $this, $title );
 786                 $wl->addWatch();
 787                 $this->invalidateCache();
 788         }
 789
 790         /**
 791          * Stop watching an article
 792          */
 793         function removeWatch( $title ) {
 794                 $wl = WatchedItem::fromUserTitle( $this, $title );
 795                 $wl->removeWatch();
 796                 $this->invalidateCache();
 797         }
 798         /**#@-*/
 799
 800         /**
 801          * @access private
 802          * @return string Encoding options
 803          */
 804         function encodeOptions() {
 805                 $a = array();
 806                 foreach ( $this->mOptions as $oname => $oval ) {
 807                         array_push( $a, $oname.'='.$oval );
 808                 }
 809                 $s = implode( "\n", $a );
 810                 return $s;
 811         }
 812
 813         /**
 814          * @access private
 815          */
 816         function decodeOptions( $str ) {
 817                 $a = explode( "\n", $str );
 818                 foreach ( $a as $s ) {
 819                         if ( preg_match( "/^(.[^=]*)=(.*)$/", $s, $m ) ) {
 820                                 $this->mOptions[$m[1]] = $m[2];
 821                         }
 822                 }
 823         }
 824
 825         function setCookies() {
 826                 global $wgCookieExpiration, $wgCookiePath, $wgCookieDomain, $wgDBname;
 827                 if ( 0 == $this->mId ) return;
 828                 $this->loadFromDatabase();
 829                 $exp = time() + $wgCookieExpiration;
 830
 831                 $_SESSION['wsUserID'] = $this->mId;
 832                 setcookie( $wgDBname.'UserID', $this->mId, $exp, $wgCookiePath, $wgCookieDomain );
 833
 834                 $_SESSION['wsUserName'] = $this->mName;
 835                 setcookie( $wgDBname.'UserName', $this->mName, $exp, $wgCookiePath, $wgCookieDomain );
 836
 837                 $_SESSION['wsToken'] = $this->mToken;
 838                 if ( 1 == $this->getOption( 'rememberpassword' ) ) {
 839                         setcookie( $wgDBname.'Token', $this->mToken, $exp, $wgCookiePath, $wgCookieDomain );
 840                 } else {
 841                         setcookie( $wgDBname.'Token', '', time() - 3600 );
 842                 }
 843         }
 844
 845         /**
 846          * Logout user
 847          * It will clean the session cookie
 848          */
 849         function logout() {
 850                 global $wgCookiePath, $wgCookieDomain, $wgDBname, $wgIP;
 851                 $this->loadDefaults();
 852                 $this->setLoaded( true );
 853
 854                 $_SESSION['wsUserID'] = 0;
 855
 856                 setcookie( $wgDBname.'UserID', '', time() - 3600, $wgCookiePath, $wgCookieDomain );
 857                 setcookie( $wgDBname.'Token', '', time() - 3600, $wgCookiePath, $wgCookieDomain );
 858         }
 859
 860         /**
 861          * Save object settings into database
 862          */
 863         function saveSettings() {
 864                 global $wgMemc, $wgDBname;
 865                 $fname = 'User::saveSettings';
 866
 867                 $dbw =& wfGetDB( DB_MASTER );
 868                 if ( ! $this->getNewtalk() ) {
 869                         # Delete the watchlist entry for user_talk page X watched by user X
 870                         if( $this->mId ) {
 871                                 $dbw->delete( 'watchlist', array( 'wl_user' => $this->mId, 'wl_title' => str_replace('_', ' ', $this->mName) ,'wl_namespace' => NS_USER_TALK ), $fname );
 872                         } else {
 873                                 $dbw->delete( 'watchlist', array( 'wl_user' => 0, 'wl_title' => $this->mName, 'wl_namespace' => NS_USER_TALK ), $fname );
 874                                 $wgMemc->delete( "$wgDBname:newtalk:ip:{$this->mName}" );
 875                         }
 876                 }
 877
 878                 if ( 0 == $this->mId ) { return; }
 879
 880                 $dbw->update( 'user',
 881                         array( /* SET */
 882                                 'user_name' => $this->mName,
 883                                 'user_password' => $this->mPassword,
 884                                 'user_newpassword' => $this->mNewpassword,
 885                                 'user_real_name' => $this->mRealName,
 886                                 'user_email' => $this->mEmail,
 887                                 'user_emailauthenticationtimestamp' => $this->mEmailAuthenticationtimestamp,
 888                                 'user_options' => $this->encodeOptions(),
 889                                 'user_touched' => $dbw->timestamp($this->mTouched),
 890                                 'user_token' => $this->mToken
 891                         ), array( /* WHERE */
 892                                 'user_id' => $this->mId
 893                         ), $fname
 894                 );
 895                 $dbw->set( 'user_rights', 'ur_rights', implode( ',', $this->mRights ),
 896                         'ur_user='. $this->mId, $fname );
 897                 $wgMemc->delete( "$wgDBname:user:id:$this->mId" );
 898
 899                 // delete old groups
 900                 $dbw->delete( 'user_groups', array( 'ug_user' => $this->mId), $fname);
 901
 902                 // save new ones
 903                 foreach ($this->mGroups as $group) {
 904                         $dbw->replace( 'user_groups',
 905                                 array(array('ug_user','ug_group')),
 906                                 array(
 907                                         'ug_user' => $this->mId,
 908                                         'ug_group' => $group
 909                                 ), $fname
 910                         );
 911                 }
 912         }
 913
 914
 915         /**
 916          * Checks if a user with the given name exists, returns the ID
 917          */
 918         function idForName() {
 919                 $fname = 'User::idForName';
 920
 921                 $gotid = 0;
 922                 $s = trim( $this->mName );
 923                 if ( 0 == strcmp( '', $s ) ) return 0;
 924
 925                 $dbr =& wfGetDB( DB_SLAVE );
 926                 $id = $dbr->selectField( 'user', 'user_id', array( 'user_name' => $s ), $fname );
 927                 if ( $id === false ) {
 928                         $id = 0;
 929                 }
 930                 return $id;
 931         }
 932
 933         /**
 934          * Add user object to the database
 935          */
 936         function addToDatabase() {
 937                 $fname = 'User::addToDatabase';
 938                 $dbw =& wfGetDB( DB_MASTER );
 939                 $seqVal = $dbw->nextSequenceValue( 'user_user_id_seq' );
 940                 $dbw->insert( 'user',
 941                         array(
 942                                 'user_id' => $seqVal,
 943                                 'user_name' => $this->mName,
 944                                 'user_password' => $this->mPassword,
 945                                 'user_newpassword' => $this->mNewpassword,
 946                                 'user_email' => $this->mEmail,
 947                                 'user_emailauthenticationtimestamp' => $this->mEmailAuthenticationtimestamp,
 948                                 'user_real_name' => $this->mRealName,
 949                                 'user_options' => $this->encodeOptions(),
 950                                 'user_token' => $this->mToken
 951                         ), $fname
 952                 );
 953                 $this->mId = $dbw->insertId();
 954                 $dbw->insert( 'user_rights',
 955                         array(
 956                                 'ur_user' => $this->mId,
 957                                 'ur_rights' => implode( ',', $this->mRights )
 958                         ), $fname
 959                 );
 960
 961                 foreach ($this->mGroups as $group) {
 962                         $dbw->insert( 'user_groups',
 963                                 array(
 964                                         'ug_user' => $this->mId,
 965                                         'ug_group' => $group
 966                                 ), $fname
 967                         );
 968                 }
 969         }
 970
 971         function spreadBlock() {
 972                 global $wgIP;
 973                 # If the (non-anonymous) user is blocked, this function will block any IP address
 974                 # that they successfully log on from.
 975                 $fname = 'User::spreadBlock';
 976
 977                 wfDebug( "User:spreadBlock()\n" );
 978                 if ( $this->mId == 0 ) {
 979                         return;
 980                 }
 981
 982                 $userblock = Block::newFromDB( '', $this->mId );
 983                 if ( !$userblock->isValid() ) {
 984                         return;
 985                 }
 986
 987                 # Check if this IP address is already blocked
 988                 $ipblock = Block::newFromDB( $wgIP );
 989                 if ( $ipblock->isValid() ) {
 990                         # Just update the timestamp
 991                         $ipblock->updateTimestamp();
 992                         return;
 993                 }
 994
 995                 # Make a new block object with the desired properties
 996                 wfDebug( "Autoblocking {$this->mName}@{$wgIP}\n" );
 997                 $ipblock->mAddress = $wgIP;
 998                 $ipblock->mUser = 0;
 999                 $ipblock->mBy = $userblock->mBy;
1000                 $ipblock->mReason = wfMsg( 'autoblocker', $this->getName(), $userblock->mReason );
1001                 $ipblock->mTimestamp = wfTimestampNow();
1002                 $ipblock->mAuto = 1;
1003                 # If the user is already blocked with an expiry date, we don't
1004                 # want to pile on top of that!
1005                 if($userblock->mExpiry) {
1006                         $ipblock->mExpiry = min ( $userblock->mExpiry, Block::getAutoblockExpiry( $ipblock->mTimestamp ));
1007                 } else {
1008                         $ipblock->mExpiry = Block::getAutoblockExpiry( $ipblock->mTimestamp );
1009                 }
1010
1011                 # Insert it
1012                 $ipblock->insert();
1013
1014         }
1015
1016         function getPageRenderingHash() {
1017                 global $wgContLang;
1018                 if( $this->mHash ){
1019                         return $this->mHash;
1020                 }
1021
1022                 // stubthreshold is only included below for completeness,
1023                 // it will always be 0 when this function is called by parsercache.
1024
1025                 $confstr =        $this->getOption( 'math' );
1026                 $confstr .= '!' . $this->getOption( 'highlightbroken' );
1027                 $confstr .= '!' . $this->getOption( 'stubthreshold' );
1028                 $confstr .= '!' . $this->getOption( 'editsection' );
1029                 $confstr .= '!' . $this->getOption( 'editsectiononrightclick' );
1030                 $confstr .= '!' . $this->getOption( 'showtoc' );
1031                 $confstr .= '!' . $this->getOption( 'date' );
1032                 $confstr .= '!' . $this->getOption( 'numberheadings' );
1033                 $confstr .= '!' . $this->getOption( 'language' );
1034                 // add in language specific options, if any
1035                 $extra = $wgContLang->getExtraHashOptions();
1036                 foreach( $extra as $e ) {
1037                         $confstr .= '!' . $this->getOption( $e );
1038                 }
1039
1040                 $this->mHash = $confstr;
1041                 return $confstr ;
1042         }
1043
1044         function isAllowedToCreateAccount() {
1045                 global $wgWhitelistAccount;
1046                 $allowed = false;
1047
1048                 if (!$wgWhitelistAccount) { return 1; }; // default behaviour
1049                 foreach ($wgWhitelistAccount as $right => $ok) {
1050                         $userHasRight = (!strcmp($right, 'user') || in_array($right, $this->getRights()));
1051                         $allowed |= ($ok && $userHasRight);
1052                 }
1053                 return $allowed;
1054         }
1055
1056         /**
1057          * Set mDataLoaded, return previous value
1058          * Use this to prevent DB access in command-line scripts or similar situations
1059          */
1060         function setLoaded( $loaded ) {
1061                 return wfSetVar( $this->mDataLoaded, $loaded );
1062         }
1063
1064         function getUserPage() {
1065                 return Title::makeTitle( NS_USER, $this->mName );
1066         }
1067
1068         /**
1069          * @static
1070          */
1071         function getMaxID() {
1072                 $dbr =& wfGetDB( DB_SLAVE );
1073                 return $dbr->selectField( 'user', 'max(user_id)', false );
1074         }
1075
1076         /**
1077          * Determine whether the user is a newbie. Newbies are either
1078          * anonymous IPs, or the 1% most recently created accounts.
1079          * Bots and sysops are excluded.
1080          * @return bool True if it is a newbie.
1081          */
1082         function isNewbie() {
1083                 return $this->mId > User::getMaxID() * 0.99 && !$this->isSysop() && !$this->isBot() || $this->getID() == 0;
1084         }
1085
1086         /**
1087          * Check to see if the given clear-text password is one of the accepted passwords
1088          * @param string $password User password.
1089          * @return bool True if the given password is correct otherwise False.
1090          */
1091         function checkPassword( $password ) {
1092                 global $wgAuth;
1093                 $this->loadFromDatabase();
1094
1095                 if( $wgAuth->authenticate( $this->getName(), $password ) ) {
1096                         return true;
1097                 } elseif( $wgAuth->strict() ) {
1098                         /* Auth plugin doesn't allow local authentication */
1099                         return false;
1100                 }
1101                 $ep = $this->encryptPassword( $password );
1102                 if ( 0 == strcmp( $ep, $this->mPassword ) ) {
1103                         return true;
1104                 } elseif ( ($this->mNewpassword != '') && (0 == strcmp( $ep, $this->mNewpassword )) ) {
1105                         $this->mEmailAuthenticationtimestamp = wfTimestampNow();
1106                         $this->mNewpassword = ''; # use the temporary one-time password only once: clear it now !
1107                         $this->saveSettings();
1108                         return true;
1109                 } elseif ( function_exists( 'iconv' ) ) {
1110                         # Some wikis were converted from ISO 8859-1 to UTF-8, the passwords can't be converted
1111                         # Check for this with iconv
1112 /*                      $cp1252hash = $this->encryptPassword( iconv( 'UTF-8', 'WINDOWS-1252', $password ) );
1113                         if ( 0 == strcmp( $cp1252hash, $this->mPassword ) ) {
1114                                 return true;
1115                         }*/
1116                 }
1117                 return false;
1118         }
1119 }
1120
1121 ?>