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