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