includes/User.php

   1 <?php
   2 /**
   3  * See user.txt
   4  *
   5  * @package MediaWiki
   6  */
   7
   8 /**
   9  *
  10  */
  11 require_once( 'WatchedItem.php' );
  12 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 $mEmailAuthenticated;
  27         var $mRights, $mOptions;
  28         var $mDataLoaded, $mNewpassword;
  29         var $mSkin;
  30         var $mBlockedby, $mBlockreason;
  31         var $mTouched;
  32         var $mToken;
  33         var $mRealName;
  34         var $mHash;
  35         /** Array of group id the user belong to */
  36         var $mGroups;
  37         /**#@-*/
  38
  39         /** Construct using User:loadDefaults() */
  40         function User() {
  41                 $this->loadDefaults();
  42         }
  43
  44         /**
  45          * Static factory method
  46          * @param string $name Username, validated by Title:newFromText()
  47          * @return User
  48          * @static
  49          */
  50         function newFromName( $name ) {
  51                 $u = new User();
  52
  53                 # Clean up name according to title rules
  54
  55                 $t = Title::newFromText( $name );
  56                 if( is_null( $t ) ) {
  57                         return NULL;
  58                 } else {
  59                         $u->setName( $t->getText() );
  60                         $u->setId( $u->idFromName( $t->getText() ) );
  61                         return $u;
  62                 }
  63         }
  64
  65         /**
  66          * Factory method to fetch whichever use has a given email confirmation code.
  67          * This code is generated when an account is created or its e-mail address
  68          * has changed.
  69          *
  70          * If the code is invalid or has expired, returns NULL.
  71          *
  72          * @param string $code
  73          * @return User
  74          * @static
  75          */
  76         function newFromConfirmationCode( $code ) {
  77                 $dbr =& wfGetDB( DB_SLAVE );
  78                 $name = $dbr->selectField( 'user', 'user_name', array(
  79                         'user_email_token' => md5( $code ),
  80                         'user_email_token_expires > ' . $dbr->addQuotes( $dbr->timestamp() ),
  81                         ) );
  82                 if( is_string( $name ) ) {
  83                         return User::newFromName( $name );
  84                 } else {
  85                         return null;
  86                 }
  87         }
  88
  89         /**
  90          * Get username given an id.
  91          * @param integer $id Database user id
  92          * @return string Nickname of a user
  93          * @static
  94          */
  95         function whoIs( $id )   {
  96                 $dbr =& wfGetDB( DB_SLAVE );
  97                 return $dbr->selectField( 'user', 'user_name', array( 'user_id' => $id ) );
  98         }
  99
 100         /**
 101          * Get real username given an id.
 102          * @param integer $id Database user id
 103          * @return string Realname of a user
 104          * @static
 105          */
 106         function whoIsReal( $id )       {
 107                 $dbr =& wfGetDB( DB_SLAVE );
 108                 return $dbr->selectField( 'user', 'user_real_name', array( 'user_id' => $id ) );
 109         }
 110
 111         /**
 112          * Get database id given a user name
 113          * @param string $name Nickname of a user
 114          * @return integer|null Database user id (null: if non existent
 115          * @static
 116          */
 117         function idFromName( $name ) {
 118                 $fname = "User::idFromName";
 119
 120                 $nt = Title::newFromText( $name );
 121                 if( is_null( $nt ) ) {
 122                         # Illegal name
 123                         return null;
 124                 }
 125                 $dbr =& wfGetDB( DB_SLAVE );
 126                 $s = $dbr->selectRow( 'user', array( 'user_id' ), array( 'user_name' => $nt->getText() ), $fname );
 127
 128                 if ( $s === false ) {
 129                         return 0;
 130                 } else {
 131                         return $s->user_id;
 132                 }
 133         }
 134
 135         /**
 136          * does the string match an anonymous IPv4 address?
 137          *
 138          * @static
 139          * @param string $name Nickname of a user
 140          * @return bool
 141          */
 142         function isIP( $name ) {
 143                 return preg_match("/^\d{1,3}\.\d{1,3}.\d{1,3}\.\d{1,3}$/",$name);
 144                 /*return preg_match("/^
 145                         (?:[01]?\d{1,2}|2(:?[0-4]\d|5[0-5]))\.
 146                         (?:[01]?\d{1,2}|2(:?[0-4]\d|5[0-5]))\.
 147                         (?:[01]?\d{1,2}|2(:?[0-4]\d|5[0-5]))\.
 148                         (?:[01]?\d{1,2}|2(:?[0-4]\d|5[0-5]))
 149                 $/x", $name);*/
 150         }
 151
 152         /**
 153          * does the string match roughly an email address ?
 154          *
 155          * @bug 959
 156          *
 157          * @param string $addr email address
 158          * @static
 159          * @return bool
 160          */
 161         function isValidEmailAddr ( $addr ) {
 162                 # There used to be a regular expression here, it got removed because it
 163                 # rejected valid addresses.
 164                 return ( trim( $addr ) != '' ) &&
 165                         (false !== strpos( $addr, '@' ) );
 166         }
 167
 168         /**
 169          * probably return a random password
 170          * @return string probably a random password
 171          * @static
 172          * @todo Check what is doing really [AV]
 173          */
 174         function randomPassword() {
 175                 $pwchars = 'ABCDEFGHJKLMNPQRSTUVWXYZabcdefghjkmnpqrstuvwxyz';
 176                 $l = strlen( $pwchars ) - 1;
 177
 178                 $np = $pwchars{mt_rand( 0, $l )} . $pwchars{mt_rand( 0, $l )} .
 179                   $pwchars{mt_rand( 0, $l )} . chr( mt_rand(48, 57) ) .
 180                   $pwchars{mt_rand( 0, $l )} . $pwchars{mt_rand( 0, $l )} .
 181                   $pwchars{mt_rand( 0, $l )};
 182                 return $np;
 183         }
 184
 185         /**
 186          * Set properties to default
 187          * Used at construction. It will load per language default settings only
 188          * if we have an available language object.
 189          */
 190         function loadDefaults() {
 191                 static $n=0;
 192                 $n++;
 193                 $fname = 'User::loadDefaults' . $n;
 194                 wfProfileIn( $fname );
 195
 196                 global $wgContLang, $wgIP, $wgDBname;
 197                 global $wgNamespacesToBeSearchedDefault;
 198
 199                 $this->mId = 0;
 200                 $this->mNewtalk = -1;
 201                 $this->mName = $wgIP;
 202                 $this->mRealName = $this->mEmail = '';
 203                 $this->mEmailAuthenticated = null;
 204                 $this->mPassword = $this->mNewpassword = '';
 205                 $this->mRights = array();
 206                 $this->mGroups = array();
 207                 // Getting user defaults only if we have an available language
 208                 if( isset( $wgContLang ) ) {
 209                         $this->loadDefaultFromLanguage();
 210                 }
 211
 212                 foreach( $wgNamespacesToBeSearchedDefault as $nsnum => $val ) {
 213                         $this->mOptions['searchNs'.$nsnum] = $val;
 214                 }
 215                 unset( $this->mSkin );
 216                 $this->mDataLoaded = false;
 217                 $this->mBlockedby = -1; # Unset
 218                 $this->setToken(); # Random
 219                 $this->mHash = false;
 220
 221                 if ( isset( $_COOKIE[$wgDBname.'LoggedOut'] ) ) {
 222                         $this->mTouched = wfTimestamp( TS_MW, $_COOKIE[$wgDBname.'LoggedOut'] );
 223                 }
 224                 else {
 225                         $this->mTouched = '0'; # Allow any pages to be cached
 226                 }
 227
 228                 wfProfileOut( $fname );
 229         }
 230
 231         /**
 232          * Used to load user options from a language.
 233          * This is not in loadDefault() cause we sometime create user before having
 234          * a language object.
 235          */
 236         function loadDefaultFromLanguage(){
 237                 $this->mOptions = User::getDefaultOptions();
 238         }
 239
 240         /**
 241          * Combine the language default options with any site-specific options
 242          * and add the default language variants.
 243          *
 244          * @return array
 245          * @static
 246          * @access private
 247          */
 248         function getDefaultOptions() {
 249                 /**
 250                  * Site defaults will override the global/language defaults
 251                  */
 252                 global $wgContLang, $wgDefaultUserOptions;
 253                 $defOpt = $wgDefaultUserOptions + $wgContLang->getDefaultUserOptions();
 254
 255                 /**
 256                  * default language setting
 257                  */
 258                 $variant = $wgContLang->getPreferredVariant();
 259                 $defOpt['variant'] = $variant;
 260                 $defOpt['language'] = $variant;
 261
 262                 return $defOpt;
 263         }
 264
 265         /**
 266          * Get a given default option value.
 267          *
 268          * @param string $opt
 269          * @return string
 270          * @static
 271          * @access public
 272          */
 273         function getDefaultOption( $opt ) {
 274                 $defOpts = User::getDefaultOptions();
 275                 if( isset( $defOpts[$opt] ) ) {
 276                         return $defOpts[$opt];
 277                 } else {
 278                         return '';
 279                 }
 280         }
 281
 282         /**
 283          * Get blocking information
 284          * @access private
 285          * @param bool $bFromSlave Specify whether to check slave or master. To improve performance,
 286          *  non-critical checks are done against slaves. Check when actually saving should be done against
 287          *  master.
 288          *
 289          * Note that even if $bFromSlave is false, the check is done first against slave, then master.
 290          * The logic is that if blocked on slave, we'll assume it's either blocked on master or
 291          * just slightly outta sync and soon corrected - safer to block slightly more that less.
 292          * And it's cheaper to check slave first, then master if needed, than master always.
 293          */
 294         function getBlockedStatus() {
 295                 global $wgIP, $wgBlockCache, $wgProxyList, $wgEnableSorbs, $bFromSlave;
 296
 297                 if ( -1 != $this->mBlockedby ) { return; }
 298
 299                 $this->mBlockedby = 0;
 300
 301                 # User blocking
 302                 if ( $this->mId ) {
 303                         $block = new Block();
 304                         $block->forUpdate( $bFromSlave );
 305                         if ( $block->load( $wgIP , $this->mId ) ) {
 306                                 $this->mBlockedby = $block->mBy;
 307                                 $this->mBlockreason = $block->mReason;
 308                                 $this->spreadBlock();
 309                         }
 310                 }
 311
 312                 # IP/range blocking
 313                 if ( !$this->mBlockedby ) {
 314                         # Check first against slave, and optionally from master.
 315                         $block = $wgBlockCache->get( $wgIP, true );
 316                         if ( !$block && !$bFromSlave )
 317                                 {
 318                                 # Not blocked: check against master, to make sure.
 319                                 $wgBlockCache->clearLocal( );
 320                                 $block = $wgBlockCache->get( $wgIP, false );
 321                                 }
 322                         if ( $block !== false ) {
 323                                 $this->mBlockedby = $block->mBy;
 324                                 $this->mBlockreason = $block->mReason;
 325                         }
 326                 }
 327
 328                 # Proxy blocking
 329                 if ( !$this->mBlockedby ) {
 330                         if ( array_key_exists( $wgIP, $wgProxyList ) ) {
 331                                 $this->mBlockedby = wfMsg( 'proxyblocker' );
 332                                 $this->mBlockreason = wfMsg( 'proxyblockreason' );
 333                         }
 334                 }
 335
 336                 # DNSBL
 337                 if ( !$this->mBlockedby && $wgEnableSorbs ) {
 338                         if ( $this->inSorbsBlacklist( $wgIP ) ) {
 339                                 $this->mBlockedby = wfMsg( 'sorbs' );
 340                                 $this->mBlockreason = wfMsg( 'sorbsreason' );
 341                         }
 342                 }
 343
 344         }
 345
 346         function inSorbsBlacklist( $ip ) {
 347                 $fname = 'User::inSorbsBlacklist';
 348                 wfProfileIn( $fname );
 349
 350                 $found = false;
 351                 $host = '';
 352
 353                 if ( preg_match( '/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/', $ip, $m ) ) {
 354                         # Make hostname
 355                         for ( $i=4; $i>=1; $i-- ) {
 356                                 $host .= $m[$i] . '.';
 357                         }
 358                         $host .= 'http.dnsbl.sorbs.net.';
 359
 360                         # Send query
 361                         $ipList = gethostbynamel( $host );
 362
 363                         if ( $ipList ) {
 364                                 wfDebug( "Hostname $host is {$ipList[0]}, it's a proxy!\n" );
 365                                 $found = true;
 366                         } else {
 367                                 wfDebug( "Requested $host, not found.\n" );
 368                         }
 369                 }
 370
 371                 wfProfileOut( $fname );
 372                 return $found;
 373         }
 374
 375         /**
 376          * Check if user is blocked
 377          * @return bool True if blocked, false otherwise
 378          */
 379         function isBlocked( $bFromSlave = false ) {
 380                 $this->getBlockedStatus( $bFromSlave );
 381                 return $this->mBlockedby !== 0;
 382         }
 383
 384         /**
 385          * Get name of blocker
 386          * @return string name of blocker
 387          */
 388         function blockedBy() {
 389                 $this->getBlockedStatus();
 390                 return $this->mBlockedby;
 391         }
 392
 393         /**
 394          * Get blocking reason
 395          * @return string Blocking reason
 396          */
 397         function blockedFor() {
 398                 $this->getBlockedStatus();
 399                 return $this->mBlockreason;
 400         }
 401
 402         /**
 403          * Initialise php session
 404          */
 405         function SetupSession() {
 406                 global $wgSessionsInMemcached, $wgCookiePath, $wgCookieDomain;
 407                 if( $wgSessionsInMemcached ) {
 408                         require_once( 'MemcachedSessions.php' );
 409                 } elseif( 'files' != ini_get( 'session.save_handler' ) ) {
 410                         # If it's left on 'user' or another setting from another
 411                         # application, it will end up failing. Try to recover.
 412                         ini_set ( 'session.save_handler', 'files' );
 413                 }
 414                 session_set_cookie_params( 0, $wgCookiePath, $wgCookieDomain );
 415                 session_cache_limiter( 'private, must-revalidate' );
 416                 @session_start();
 417         }
 418
 419         /**
 420          * Read datas from session
 421          * @static
 422          */
 423         function loadFromSession() {
 424                 global $wgMemc, $wgDBname;
 425
 426                 if ( isset( $_SESSION['wsUserID'] ) ) {
 427                         if ( 0 != $_SESSION['wsUserID'] ) {
 428                                 $sId = $_SESSION['wsUserID'];
 429                         } else {
 430                                 return new User();
 431                         }
 432                 } else if ( isset( $_COOKIE["{$wgDBname}UserID"] ) ) {
 433                         $sId = IntVal( $_COOKIE["{$wgDBname}UserID"] );
 434                         $_SESSION['wsUserID'] = $sId;
 435                 } else {
 436                         return new User();
 437                 }
 438                 if ( isset( $_SESSION['wsUserName'] ) ) {
 439                         $sName = $_SESSION['wsUserName'];
 440                 } else if ( isset( $_COOKIE["{$wgDBname}UserName"] ) ) {
 441                         $sName = $_COOKIE["{$wgDBname}UserName"];
 442                         $_SESSION['wsUserName'] = $sName;
 443                 } else {
 444                         return new User();
 445                 }
 446
 447                 $passwordCorrect = FALSE;
 448                 $user = $wgMemc->get( $key = "$wgDBname:user:id:$sId" );
 449                 if($makenew = !$user) {
 450                         wfDebug( "User::loadFromSession() unable to load from memcached\n" );
 451                         $user = new User();
 452                         $user->mId = $sId;
 453                         $user->loadFromDatabase();
 454                 } else {
 455                         wfDebug( "User::loadFromSession() got from cache!\n" );
 456                 }
 457
 458                 if ( isset( $_SESSION['wsToken'] ) ) {
 459                         $passwordCorrect = $_SESSION['wsToken'] == $user->mToken;
 460                 } else if ( isset( $_COOKIE["{$wgDBname}Token"] ) ) {
 461                         $passwordCorrect = $user->mToken == $_COOKIE["{$wgDBname}Token"];
 462                 } else {
 463                         return new User(); # Can't log in from session
 464                 }
 465
 466                 if ( ( $sName == $user->mName ) && $passwordCorrect ) {
 467                         if($makenew) {
 468                                 if($wgMemc->set( $key, $user ))
 469                                         wfDebug( "User::loadFromSession() successfully saved user\n" );
 470                                 else
 471                                         wfDebug( "User::loadFromSession() unable to save to memcached\n" );
 472                         }
 473                         return $user;
 474                 }
 475                 return new User(); # Can't log in from session
 476         }
 477
 478         /**
 479          * Load a user from the database
 480          */
 481         function loadFromDatabase() {
 482                 global $wgCommandLineMode, $wgAnonGroupId, $wgLoggedInGroupId;
 483                 $fname = "User::loadFromDatabase";
 484
 485                 # Counter-intuitive, breaks various things, use User::setLoaded() if you want to suppress
 486                 # loading in a command line script, don't assume all command line scripts need it like this
 487                 #if ( $this->mDataLoaded || $wgCommandLineMode ) {
 488                 if ( $this->mDataLoaded ) {
 489                         return;
 490                 }
 491
 492                 # Paranoia
 493                 $this->mId = IntVal( $this->mId );
 494
 495                 /** Anonymous user */
 496                 if(!$this->mId) {
 497                         /** Get rights */
 498                         $anong = Group::newFromId($wgAnonGroupId);
 499                         if (!$anong)
 500                                 wfDebugDieBacktrace("Please update your database schema "
 501                                         ."and populate initial group data from "
 502                                         ."maintenance/archives patches");
 503                         $anong->loadFromDatabase();
 504                         $this->mRights = explode(',', $anong->getRights());
 505                         $this->mDataLoaded = true;
 506                         return;
 507                 } # the following stuff is for non-anonymous users only
 508
 509                 $dbr =& wfGetDB( DB_SLAVE );
 510                 $s = $dbr->selectRow( 'user', array( 'user_name','user_password','user_newpassword','user_email',
 511                   'user_email_authenticated',
 512                   'user_real_name','user_options','user_touched', 'user_token' ),
 513                   array( 'user_id' => $this->mId ), $fname );
 514
 515                 if ( $s !== false ) {
 516                         $this->mName = $s->user_name;
 517                         $this->mEmail = $s->user_email;
 518                         $this->mEmailAuthenticated = wfTimestampOrNull( TS_MW, $s->user_email_authenticated );
 519                         $this->mRealName = $s->user_real_name;
 520                         $this->mPassword = $s->user_password;
 521                         $this->mNewpassword = $s->user_newpassword;
 522                         $this->decodeOptions( $s->user_options );
 523                         $this->mTouched = wfTimestamp(TS_MW,$s->user_touched);
 524                         $this->mToken = $s->user_token;
 525
 526                         // Get groups id
 527                         $res = $dbr->select( 'user_groups', array( 'ug_group' ), array( 'ug_user' => $this->mId ) );
 528
 529                         // add the default group for logged in user
 530                         $this->mGroups = array( $wgLoggedInGroupId );
 531
 532                         while($group = $dbr->fetchRow($res)) {
 533                                 if ( $group[0] != $wgLoggedInGroupId ) {
 534                                         $this->mGroups[] = $group[0];
 535                                 }
 536                         }
 537
 538
 539                         $this->mRights = array();
 540                         // now we merge groups rights to get this user rights
 541                         foreach($this->mGroups as $aGroupId) {
 542                                 $g = Group::newFromId($aGroupId);
 543                                 $g->loadFromDatabase();
 544                                 $this->mRights = array_merge($this->mRights, explode(',', $g->getRights()));
 545                         }
 546
 547                         // array merge duplicate rights which are part of several groups
 548                         $this->mRights = array_unique($this->mRights);
 549
 550                         $dbr->freeResult($res);
 551                 }
 552
 553                 $this->mDataLoaded = true;
 554         }
 555
 556         function getID() { return $this->mId; }
 557         function setID( $v ) {
 558                 $this->mId = $v;
 559                 $this->mDataLoaded = false;
 560         }
 561
 562         function getName() {
 563                 $this->loadFromDatabase();
 564                 return $this->mName;
 565         }
 566
 567         function setName( $str ) {
 568                 $this->loadFromDatabase();
 569                 $this->mName = $str;
 570         }
 571
 572
 573         /**
 574          * Return the title dbkey form of the name, for eg user pages.
 575          * @return string
 576          * @access public
 577          */
 578         function getTitleKey() {
 579                 return str_replace( ' ', '_', $this->getName() );
 580         }
 581
 582         function getNewtalk() {
 583                 $fname = 'User::getNewtalk';
 584                 $this->loadFromDatabase();
 585
 586                 # Load the newtalk status if it is unloaded (mNewtalk=-1)
 587                 if( $this->mNewtalk == -1 ) {
 588                         $this->mNewtalk = 0; # reset talk page status
 589
 590                         # Check memcached separately for anons, who have no
 591                         # entire User object stored in there.
 592                         if( !$this->mId ) {
 593                                 global $wgDBname, $wgMemc;
 594                                 $key = "$wgDBname:newtalk:ip:{$this->mName}";
 595                                 $newtalk = $wgMemc->get( $key );
 596                                 if( is_integer( $newtalk ) ) {
 597                                         $this->mNewtalk = $newtalk ? 1 : 0;
 598                                         return (bool)$this->mNewtalk;
 599                                 }
 600                         }
 601
 602                         $dbr =& wfGetDB( DB_SLAVE );
 603                         $res = $dbr->select( 'watchlist',
 604                                 array( 'wl_user' ),
 605                                 array( 'wl_title'     => $this->getTitleKey(),
 606                                            'wl_namespace' => NS_USER_TALK,
 607                                            'wl_user'      => $this->mId,
 608                                            'wl_notificationtimestamp != 0' ),
 609                                 'User::getNewtalk' );
 610                         if( $dbr->numRows($res) > 0 ) {
 611                                 $this->mNewtalk = 1;
 612                         }
 613                         $dbr->freeResult( $res );
 614
 615                         if( !$this->mId ) {
 616                                 $wgMemc->set( $key, $this->mNewtalk, time() ); // + 1800 );
 617                         }
 618                 }
 619
 620                 return ( 0 != $this->mNewtalk );
 621         }
 622
 623         function setNewtalk( $val ) {
 624                 $this->loadFromDatabase();
 625                 $this->mNewtalk = $val;
 626                 $this->invalidateCache();
 627         }
 628
 629         function invalidateCache() {
 630                 $this->loadFromDatabase();
 631                 $this->mTouched = wfTimestampNow();
 632                 # Don't forget to save the options after this or
 633                 # it won't take effect!
 634         }
 635
 636         function validateCache( $timestamp ) {
 637                 $this->loadFromDatabase();
 638                 return ($timestamp >= $this->mTouched);
 639         }
 640
 641         /**
 642          * Salt a password.
 643          * Will only be salted if $wgPasswordSalt is true
 644          * @param string Password.
 645          * @return string Salted password or clear password.
 646          */
 647         function addSalt( $p ) {
 648                 global $wgPasswordSalt;
 649                 if($wgPasswordSalt)
 650                         return md5( "{$this->mId}-{$p}" );
 651                 else
 652                         return $p;
 653         }
 654
 655         /**
 656          * Encrypt a password.
 657          * It can eventuall salt a password @see User::addSalt()
 658          * @param string $p clear Password.
 659          * @param string Encrypted password.
 660          */
 661         function encryptPassword( $p ) {
 662                 return $this->addSalt( md5( $p ) );
 663         }
 664
 665         # Set the password and reset the random token
 666         function setPassword( $str ) {
 667                 $this->loadFromDatabase();
 668                 $this->setToken();
 669                 $this->mPassword = $this->encryptPassword( $str );
 670                 $this->mNewpassword = '';
 671         }
 672
 673         # Set the random token (used for persistent authentication)
 674         function setToken( $token = false ) {
 675                 global $wgSecretKey, $wgProxyKey, $wgDBname;
 676                 if ( !$token ) {
 677                         if ( $wgSecretKey ) {
 678                                 $key = $wgSecretKey;
 679                         } elseif ( $wgProxyKey ) {
 680                                 $key = $wgProxyKey;
 681                         } else {
 682                                 $key = microtime();
 683                         }
 684                         $this->mToken = md5( $wgSecretKey . mt_rand( 0, 0x7fffffff ) . $wgDBname . $this->mId );
 685                 } else {
 686                         $this->mToken = $token;
 687                 }
 688         }
 689
 690
 691         function setCookiePassword( $str ) {
 692                 $this->loadFromDatabase();
 693                 $this->mCookiePassword = md5( $str );
 694         }
 695
 696         function setNewpassword( $str ) {
 697                 $this->loadFromDatabase();
 698                 $this->mNewpassword = $this->encryptPassword( $str );
 699         }
 700
 701         function getEmail() {
 702                 $this->loadFromDatabase();
 703                 return $this->mEmail;
 704         }
 705
 706         function getEmailAuthenticationTimestamp() {
 707                 $this->loadFromDatabase();
 708                 return $this->mEmailAuthenticated;
 709         }
 710
 711         function setEmail( $str ) {
 712                 $this->loadFromDatabase();
 713                 $this->mEmail = $str;
 714         }
 715
 716         function getRealName() {
 717                 $this->loadFromDatabase();
 718                 return $this->mRealName;
 719         }
 720
 721         function setRealName( $str ) {
 722                 $this->loadFromDatabase();
 723                 $this->mRealName = $str;
 724         }
 725
 726         function getOption( $oname ) {
 727                 $this->loadFromDatabase();
 728                 if ( array_key_exists( $oname, $this->mOptions ) ) {
 729                         return $this->mOptions[$oname];
 730                 } else {
 731                         return '';
 732                 }
 733         }
 734
 735         function setOption( $oname, $val ) {
 736                 $this->loadFromDatabase();
 737                 if ( $oname == 'skin' ) {
 738                         # Clear cached skin, so the new one displays immediately in Special:Preferences
 739                         unset( $this->mSkin );
 740                 }
 741                 $this->mOptions[$oname] = $val;
 742                 $this->invalidateCache();
 743         }
 744
 745         function getRights() {
 746                 $this->loadFromDatabase();
 747                 return $this->mRights;
 748         }
 749
 750         function addRight( $rname )     {
 751                 $this->loadFromDatabase();
 752                 array_push( $this->mRights, $rname );
 753                 $this->invalidateCache();
 754         }
 755
 756         function getGroups() {
 757                 $this->loadFromDatabase();
 758                 return $this->mGroups;
 759         }
 760
 761         function setGroups($groups) {
 762                 $this->loadFromDatabase();
 763                 $this->mGroups = $groups;
 764                 $this->invalidateCache();
 765         }
 766
 767         /**
 768          * A more legible check for non-anonymousness.
 769          * Returns true if the user is not an anonymous visitor.
 770          *
 771          * @return bool
 772          */
 773         function isLoggedIn() {
 774                 return( $this->getID() != 0 );
 775         }
 776
 777         /**
 778          * A more legible check for anonymousness.
 779          * Returns true if the user is an anonymous visitor.
 780          *
 781          * @return bool
 782          */
 783         function isAnon() {
 784                 return !$this->isLoggedIn();
 785         }
 786
 787         /**
 788          * Check if a user is sysop
 789          * Die with backtrace. Use User:isAllowed() instead.
 790          * @deprecated
 791          */
 792         function isSysop() {
 793                 wfDebugDieBacktrace("User::isSysop() is deprecated. Use User::isAllowed() instead");
 794         }
 795
 796         /** @deprecated */
 797         function isDeveloper() {
 798                 wfDebugDieBacktrace("User::isDeveloper() is deprecated. Use User::isAllowed() instead");
 799         }
 800
 801         /** @deprecated */
 802         function isBureaucrat() {
 803                 wfDebugDieBacktrace("User::isBureaucrat() is deprecated. Use User::isAllowed() instead");
 804         }
 805
 806         /**
 807          * Whether the user is a bot
 808          * @todo need to be migrated to the new user level management sytem
 809          */
 810         function isBot() {
 811                 $this->loadFromDatabase();
 812                 return in_array( 'bot', $this->mRights );
 813         }
 814
 815         /**
 816          * Check if user is allowed to access a feature / make an action
 817          * @param string $action Action to be checked (see $wgAvailableRights in Defines.php for possible actions).
 818          * @return boolean True: action is allowed, False: action should not be allowed
 819          */
 820         function isAllowed($action='') {
 821                 $this->loadFromDatabase();
 822                 return in_array( $action , $this->mRights );
 823         }
 824
 825         /**
 826          * Load a skin if it doesn't exist or return it
 827          * @todo FIXME : need to check the old failback system [AV]
 828          */
 829         function &getSkin() {
 830                 global $IP;
 831                 if ( ! isset( $this->mSkin ) ) {
 832                         $fname = 'User::getSkin';
 833                         wfProfileIn( $fname );
 834
 835                         # get all skin names available
 836                         $skinNames = Skin::getSkinNames();
 837
 838                         # get the user skin
 839                         $userSkin = $this->getOption( 'skin' );
 840                         if ( $userSkin == '' ) { $userSkin = 'standard'; }
 841
 842                         if ( !isset( $skinNames[$userSkin] ) ) {
 843                                 # in case the user skin could not be found find a replacement
 844                                 $fallback = array(
 845                                         0 => 'Standard',
 846                                         1 => 'Nostalgia',
 847                                         2 => 'CologneBlue');
 848                                 # if phptal is enabled we should have monobook skin that
 849                                 # superseed the good old SkinStandard.
 850                                 if ( isset( $skinNames['monobook'] ) ) {
 851                                         $fallback[0] = 'MonoBook';
 852                                 }
 853
 854                                 if(is_numeric($userSkin) && isset( $fallback[$userSkin]) ){
 855                                         $sn = $fallback[$userSkin];
 856                                 } else {
 857                                         $sn = 'Standard';
 858                                 }
 859                         } else {
 860                                 # The user skin is available
 861                                 $sn = $skinNames[$userSkin];
 862                         }
 863
 864                         # Grab the skin class and initialise it. Each skin checks for PHPTal
 865                         # and will not load if it's not enabled.
 866                         require_once( $IP.'/skins/'.$sn.'.php' );
 867
 868                         # Check if we got if not failback to default skin
 869                         $className = 'Skin'.$sn;
 870                         if( !class_exists( $className ) ) {
 871                                 # DO NOT die if the class isn't found. This breaks maintenance
 872                                 # scripts and can cause a user account to be unrecoverable
 873                                 # except by SQL manipulation if a previously valid skin name
 874                                 # is no longer valid.
 875                                 $className = 'SkinStandard';
 876                                 require_once( $IP.'/skins/Standard.php' );
 877                         }
 878                         $this->mSkin =& new $className;
 879                         wfProfileOut( $fname );
 880                 }
 881                 return $this->mSkin;
 882         }
 883
 884         /**#@+
 885          * @param string $title Article title to look at
 886          */
 887
 888         /**
 889          * Check watched status of an article
 890          * @return bool True if article is watched
 891          */
 892         function isWatched( $title ) {
 893                 $wl = WatchedItem::fromUserTitle( $this, $title );
 894                 return $wl->isWatched();
 895         }
 896
 897         /**
 898          * Watch an article
 899          */
 900         function addWatch( $title ) {
 901                 $wl = WatchedItem::fromUserTitle( $this, $title );
 902                 $wl->addWatch();
 903                 $this->invalidateCache();
 904         }
 905
 906         /**
 907          * Stop watching an article
 908          */
 909         function removeWatch( $title ) {
 910                 $wl = WatchedItem::fromUserTitle( $this, $title );
 911                 $wl->removeWatch();
 912                 $this->invalidateCache();
 913         }
 914
 915         /**
 916          * Clear the user's notification timestamp for the given title.
 917          * If e-notif e-mails are on, they will receive notification mails on
 918          * the next change of the page if it's watched etc.
 919          */
 920         function clearNotification( $title ) {
 921                 $userid = $this->getId();
 922                 if ($userid==0)
 923                         return;
 924                 $dbw =& wfGetDB( DB_MASTER );
 925                 $success = $dbw->update( 'watchlist',
 926                                 array( /* SET */
 927                                         'wl_notificationtimestamp' => 0
 928                                 ), array( /* WHERE */
 929                                         'wl_title' => $title->getDBkey(),
 930                                         'wl_namespace' => $title->getNamespace(),
 931                                         'wl_user' => $this->getId()
 932                                 ), 'User::clearLastVisited'
 933                 );
 934         }
 935
 936         /**#@-*/
 937
 938         /**
 939          * Resets all of the given user's page-change notification timestamps.
 940          * If e-notif e-mails are on, they will receive notification mails on
 941          * the next change of any watched page.
 942          *
 943          * @param int $currentUser user ID number
 944          * @access public
 945          */
 946         function clearAllNotifications( $currentUser ) {
 947                 if( $currentUser != 0 )  {
 948
 949                         $dbw =& wfGetDB( DB_MASTER );
 950                         $success = $dbw->update( 'watchlist',
 951                                 array( /* SET */
 952                                         'wl_notificationtimestamp' => 0
 953                                 ), array( /* WHERE */
 954                                         'wl_user' => $currentUser
 955                                 ), 'UserMailer::clearAll'
 956                         );
 957
 958                 #       we also need to clear here the "you have new message" notification for the own user_talk page
 959                 #       This is cleared one page view later in Article::viewUpdates();
 960                 }
 961         }
 962
 963         /**
 964          * @access private
 965          * @return string Encoding options
 966          */
 967         function encodeOptions() {
 968                 $a = array();
 969                 foreach ( $this->mOptions as $oname => $oval ) {
 970                         array_push( $a, $oname.'='.$oval );
 971                 }
 972                 $s = implode( "\n", $a );
 973                 return $s;
 974         }
 975
 976         /**
 977          * @access private
 978          */
 979         function decodeOptions( $str ) {
 980                 $a = explode( "\n", $str );
 981                 foreach ( $a as $s ) {
 982                         if ( preg_match( "/^(.[^=]*)=(.*)$/", $s, $m ) ) {
 983                                 $this->mOptions[$m[1]] = $m[2];
 984                         }
 985                 }
 986         }
 987
 988         function setCookies() {
 989                 global $wgCookieExpiration, $wgCookiePath, $wgCookieDomain, $wgDBname;
 990                 if ( 0 == $this->mId ) return;
 991                 $this->loadFromDatabase();
 992                 $exp = time() + $wgCookieExpiration;
 993
 994                 $_SESSION['wsUserID'] = $this->mId;
 995                 setcookie( $wgDBname.'UserID', $this->mId, $exp, $wgCookiePath, $wgCookieDomain );
 996
 997                 $_SESSION['wsUserName'] = $this->mName;
 998                 setcookie( $wgDBname.'UserName', $this->mName, $exp, $wgCookiePath, $wgCookieDomain );
 999
1000                 $_SESSION['wsToken'] = $this->mToken;
1001                 if ( 1 == $this->getOption( 'rememberpassword' ) ) {
1002                         setcookie( $wgDBname.'Token', $this->mToken, $exp, $wgCookiePath, $wgCookieDomain );
1003                 } else {
1004                         setcookie( $wgDBname.'Token', '', time() - 3600 );
1005                 }
1006         }
1007
1008         /**
1009          * Logout user
1010          * It will clean the session cookie
1011          */
1012         function logout() {
1013                 global $wgCookiePath, $wgCookieDomain, $wgDBname, $wgIP;
1014                 $this->loadDefaults();
1015                 $this->setLoaded( true );
1016
1017                 $_SESSION['wsUserID'] = 0;
1018
1019                 setcookie( $wgDBname.'UserID', '', time() - 3600, $wgCookiePath, $wgCookieDomain );
1020                 setcookie( $wgDBname.'Token', '', time() - 3600, $wgCookiePath, $wgCookieDomain );
1021
1022                 # Remember when user logged out, to prevent seeing cached pages
1023                 setcookie( $wgDBname.'LoggedOut', wfTimestampNow(), time() + 86400, $wgCookiePath, $wgCookieDomain );
1024         }
1025
1026         /**
1027          * Save object settings into database
1028          */
1029         function saveSettings() {
1030                 global $wgMemc, $wgDBname;
1031                 $fname = 'User::saveSettings';
1032
1033                 $dbw =& wfGetDB( DB_MASTER );
1034                 if ( ! $this->getNewtalk() ) {
1035                         # Delete the watchlist entry for user_talk page X watched by user X
1036                         $dbw->delete( 'watchlist',
1037                                 array( 'wl_user'      => $this->mId,
1038                                            'wl_title'     => $this->getTitleKey(),
1039                                            'wl_namespace' => NS_USER_TALK ),
1040                                 $fname );
1041                         if( !$this->mId ) {
1042                                 # Anon users have a separate memcache space for newtalk
1043                                 # since they don't store their own info. Trim...
1044                                 $wgMemc->delete( "$wgDBname:newtalk:ip:{$this->mName}" );
1045                         }
1046                 }
1047
1048                 if ( 0 == $this->mId ) { return; }
1049
1050                 $dbw->update( 'user',
1051                         array( /* SET */
1052                                 'user_name' => $this->mName,
1053                                 'user_password' => $this->mPassword,
1054                                 'user_newpassword' => $this->mNewpassword,
1055                                 'user_real_name' => $this->mRealName,
1056                                 'user_email' => $this->mEmail,
1057                                 'user_email_authenticated' => $dbw->timestampOrNull( $this->mEmailAuthenticated ),
1058                                 'user_options' => $this->encodeOptions(),
1059                                 'user_touched' => $dbw->timestamp($this->mTouched),
1060                                 'user_token' => $this->mToken
1061                         ), array( /* WHERE */
1062                                 'user_id' => $this->mId
1063                         ), $fname
1064                 );
1065                 $dbw->set( 'user_rights', 'ur_rights', implode( ',', $this->mRights ),
1066                         'ur_user='. $this->mId, $fname );
1067                 $wgMemc->delete( "$wgDBname:user:id:$this->mId" );
1068
1069                 // delete old groups
1070                 $dbw->delete( 'user_groups', array( 'ug_user' => $this->mId), $fname);
1071
1072                 // save new ones
1073                 foreach ($this->mGroups as $group) {
1074                         $dbw->replace( 'user_groups',
1075                                 array(array('ug_user','ug_group')),
1076                                 array(
1077                                         'ug_user' => $this->mId,
1078                                         'ug_group' => $group
1079                                 ), $fname
1080                         );
1081                 }
1082         }
1083
1084
1085         /**
1086          * Checks if a user with the given name exists, returns the ID
1087          */
1088         function idForName() {
1089                 $fname = 'User::idForName';
1090
1091                 $gotid = 0;
1092                 $s = trim( $this->mName );
1093                 if ( 0 == strcmp( '', $s ) ) return 0;
1094
1095                 $dbr =& wfGetDB( DB_SLAVE );
1096                 $id = $dbr->selectField( 'user', 'user_id', array( 'user_name' => $s ), $fname );
1097                 if ( $id === false ) {
1098                         $id = 0;
1099                 }
1100                 return $id;
1101         }
1102
1103         /**
1104          * Add user object to the database
1105          */
1106         function addToDatabase() {
1107                 $fname = 'User::addToDatabase';
1108                 $dbw =& wfGetDB( DB_MASTER );
1109                 $seqVal = $dbw->nextSequenceValue( 'user_user_id_seq' );
1110                 $dbw->insert( 'user',
1111                         array(
1112                                 'user_id' => $seqVal,
1113                                 'user_name' => $this->mName,
1114                                 'user_password' => $this->mPassword,
1115                                 'user_newpassword' => $this->mNewpassword,
1116                                 'user_email' => $this->mEmail,
1117                                 'user_email_authenticated' => $dbw->timestampOrNull( $this->mEmailAuthenticated ),
1118                                 'user_real_name' => $this->mRealName,
1119                                 'user_options' => $this->encodeOptions(),
1120                                 'user_token' => $this->mToken
1121                         ), $fname
1122                 );
1123                 $this->mId = $dbw->insertId();
1124                 $dbw->insert( 'user_rights',
1125                         array(
1126                                 'ur_user' => $this->mId,
1127                                 'ur_rights' => implode( ',', $this->mRights )
1128                         ), $fname
1129                 );
1130
1131                 foreach ($this->mGroups as $group) {
1132                         $dbw->insert( 'user_groups',
1133                                 array(
1134                                         'ug_user' => $this->mId,
1135                                         'ug_group' => $group
1136                                 ), $fname
1137                         );
1138                 }
1139         }
1140
1141         function spreadBlock() {
1142                 global $wgIP;
1143                 # If the (non-anonymous) user is blocked, this function will block any IP address
1144                 # that they successfully log on from.
1145                 $fname = 'User::spreadBlock';
1146
1147                 wfDebug( "User:spreadBlock()\n" );
1148                 if ( $this->mId == 0 ) {
1149                         return;
1150                 }
1151
1152                 $userblock = Block::newFromDB( '', $this->mId );
1153                 if ( !$userblock->isValid() ) {
1154                         return;
1155                 }
1156
1157                 # Check if this IP address is already blocked
1158                 $ipblock = Block::newFromDB( $wgIP );
1159                 if ( $ipblock->isValid() ) {
1160                         # Just update the timestamp
1161                         $ipblock->updateTimestamp();
1162                         return;
1163                 }
1164
1165                 # Make a new block object with the desired properties
1166                 wfDebug( "Autoblocking {$this->mName}@{$wgIP}\n" );
1167                 $ipblock->mAddress = $wgIP;
1168                 $ipblock->mUser = 0;
1169                 $ipblock->mBy = $userblock->mBy;
1170                 $ipblock->mReason = wfMsg( 'autoblocker', $this->getName(), $userblock->mReason );
1171                 $ipblock->mTimestamp = wfTimestampNow();
1172                 $ipblock->mAuto = 1;
1173                 # If the user is already blocked with an expiry date, we don't
1174                 # want to pile on top of that!
1175                 if($userblock->mExpiry) {
1176                         $ipblock->mExpiry = min ( $userblock->mExpiry, Block::getAutoblockExpiry( $ipblock->mTimestamp ));
1177                 } else {
1178                         $ipblock->mExpiry = Block::getAutoblockExpiry( $ipblock->mTimestamp );
1179                 }
1180
1181                 # Insert it
1182                 $ipblock->insert();
1183
1184         }
1185
1186         function getPageRenderingHash() {
1187                 global $wgContLang;
1188                 if( $this->mHash ){
1189                         return $this->mHash;
1190                 }
1191
1192                 // stubthreshold is only included below for completeness,
1193                 // it will always be 0 when this function is called by parsercache.
1194
1195                 $confstr =        $this->getOption( 'math' );
1196                 $confstr .= '!' . $this->getOption( 'stubthreshold' );
1197                 $confstr .= '!' . $this->getOption( 'editsection' );
1198                 $confstr .= '!' . $this->getOption( 'date' );
1199                 $confstr .= '!' . $this->getOption( 'numberheadings' );
1200                 $confstr .= '!' . $this->getOption( 'language' );
1201                 $confstr .= '!' . $this->getOption( 'thumbsize' );
1202                 // add in language specific options, if any
1203                 $extra = $wgContLang->getExtraHashOptions();
1204                 $confstr .= $extra;
1205
1206                 $this->mHash = $confstr;
1207                 return $confstr ;
1208         }
1209
1210         function isAllowedToCreateAccount() {
1211                 global $wgWhitelistAccount;
1212                 $allowed = false;
1213
1214                 if (!$wgWhitelistAccount) { return 1; }; // default behaviour
1215                 foreach ($wgWhitelistAccount as $right => $ok) {
1216                         $userHasRight = (!strcmp($right, 'user') || in_array($right, $this->getRights()));
1217                         $allowed |= ($ok && $userHasRight);
1218                 }
1219                 return $allowed;
1220         }
1221
1222         /**
1223          * Set mDataLoaded, return previous value
1224          * Use this to prevent DB access in command-line scripts or similar situations
1225          */
1226         function setLoaded( $loaded ) {
1227                 return wfSetVar( $this->mDataLoaded, $loaded );
1228         }
1229
1230         /**
1231          * Get this user's personal page title.
1232          *
1233          * @return Title
1234          * @access public
1235          */
1236         function getUserPage() {
1237                 return Title::makeTitle( NS_USER, $this->mName );
1238         }
1239
1240         /**
1241          * Get this user's talk page title.
1242          *
1243          * @return Title
1244          * @access public
1245          */
1246         function getTalkPage() {
1247                 $title = $this->getUserPage();
1248                 return $title->getTalkPage();
1249         }
1250
1251         /**
1252          * @static
1253          */
1254         function getMaxID() {
1255                 $dbr =& wfGetDB( DB_SLAVE );
1256                 return $dbr->selectField( 'user', 'max(user_id)', false );
1257         }
1258
1259         /**
1260          * Determine whether the user is a newbie. Newbies are either
1261          * anonymous IPs, or the 1% most recently created accounts.
1262          * Bots and sysops are excluded.
1263          * @return bool True if it is a newbie.
1264          */
1265         function isNewbie() {
1266                 return $this->mId > User::getMaxID() * 0.99 && !$this->isAllowed( 'delete' ) && !$this->isBot() || $this->getID() == 0;
1267         }
1268
1269         /**
1270          * Check to see if the given clear-text password is one of the accepted passwords
1271          * @param string $password User password.
1272          * @return bool True if the given password is correct otherwise False.
1273          */
1274         function checkPassword( $password ) {
1275                 global $wgAuth;
1276                 $this->loadFromDatabase();
1277
1278                 if( $wgAuth->authenticate( $this->getName(), $password ) ) {
1279                         return true;
1280                 } elseif( $wgAuth->strict() ) {
1281                         /* Auth plugin doesn't allow local authentication */
1282                         return false;
1283                 }
1284                 $ep = $this->encryptPassword( $password );
1285                 if ( 0 == strcmp( $ep, $this->mPassword ) ) {
1286                         return true;
1287                 } elseif ( ($this->mNewpassword != '') && (0 == strcmp( $ep, $this->mNewpassword )) ) {
1288                         # If e-mail confirmation hasn't been done already,
1289                         # we may as well confirm it here -- the user can only
1290                         # get this password via e-mail.
1291                         $this->mEmailAuthenticated = wfTimestampNow();
1292
1293                         # use the temporary one-time password only once: clear it now !
1294                         $this->mNewpassword = '';
1295                         $this->saveSettings();
1296                         return true;
1297                 } elseif ( function_exists( 'iconv' ) ) {
1298                         # Some wikis were converted from ISO 8859-1 to UTF-8, the passwords can't be converted
1299                         # Check for this with iconv
1300                         $cp1252hash = $this->encryptPassword( iconv( 'UTF-8', 'WINDOWS-1252', $password ) );
1301                         if ( 0 == strcmp( $cp1252hash, $this->mPassword ) ) {
1302                                 return true;
1303                         }
1304                 }
1305                 return false;
1306         }
1307
1308         /**
1309          * Initialize (if necessary) and return a session token value
1310          * which can be used in edit forms to show that the user's
1311          * login credentials aren't being hijacked with a foreign form
1312          * submission.
1313          *
1314          * @param mixed $salt - Optional function-specific data for hash.
1315          *                      Use a string or an array of strings.
1316          * @return string
1317          * @access public
1318          */
1319         function editToken( $salt = '' ) {
1320                 if( !isset( $_SESSION['wsEditToken'] ) ) {
1321                         $token = $this->generateToken();
1322                         $_SESSION['wsEditToken'] = $token;
1323                 } else {
1324                         $token = $_SESSION['wsEditToken'];
1325                 }
1326                 if( is_array( $salt ) ) {
1327                         $salt = implode( '|', $salt );
1328                 }
1329                 return md5( $token . $salt );
1330         }
1331
1332         /**
1333          * Generate a hex-y looking random token for various uses.
1334          * Could be made more cryptographically sure if someone cares.
1335          * @return string
1336          */
1337         function generateToken( $salt = '' ) {
1338                 $token = dechex( mt_rand() ) . dechex( mt_rand() );
1339                 return md5( $token . $salt );
1340         }
1341
1342         /**
1343          * Check given value against the token value stored in the session.
1344          * A match should confirm that the form was submitted from the
1345          * user's own login session, not a form submission from a third-party
1346          * site.
1347          *
1348          * @param string $val - the input value to compare
1349          * @param string $salt - Optional function-specific data for hash
1350          * @return bool
1351          * @access public
1352          */
1353         function matchEditToken( $val, $salt = '' ) {
1354                 return ( $val == $this->editToken( $salt ) );
1355         }
1356
1357         /**
1358          * Generate a new e-mail confirmation token and send a confirmation
1359          * mail to the user's given address.
1360          *
1361          * @return mixed True on success, a WikiError object on failure.
1362          */
1363         function sendConfirmationMail() {
1364                 global $wgIP, $wgContLang;
1365                 $url = $this->confirmationTokenUrl( $expiration );
1366                 return $this->sendMail( wfMsg( 'confirmemail_subject' ),
1367                         wfMsg( 'confirmemail_body',
1368                                 $wgIP,
1369                                 $this->getName(),
1370                                 $url,
1371                                 $wgContLang->timeanddate( $expiration, false ) ) );
1372         }
1373
1374         /**
1375          * Send an e-mail to this user's account. Does not check for
1376          * confirmed status or validity.
1377          *
1378          * @param string $subject
1379          * @param string $body
1380          * @param strong $from Optional from address; default $wgPasswordSender will be used otherwise.
1381          * @return mixed True on success, a WikiError object on failure.
1382          */
1383         function sendMail( $subject, $body, $from = null ) {
1384                 if( is_null( $from ) ) {
1385                         global $wgPasswordSender;
1386                         $from = $wgPasswordSender;
1387                 }
1388
1389                 require_once( 'UserMailer.php' );
1390                 $error = userMailer( $this->getEmail(), $from, $subject, $body );
1391
1392                 if( $error == '' ) {
1393                         return true;
1394                 } else {
1395                         return new WikiError( $error );
1396                 }
1397         }
1398
1399         /**
1400          * Generate, store, and return a new e-mail confirmation code.
1401          * A hash (unsalted since it's used as a key) is stored.
1402          * @param &$expiration mixed output: accepts the expiration time
1403          * @return string
1404          * @access private
1405          */
1406         function confirmationToken( &$expiration ) {
1407                 $fname = 'User::confirmationToken';
1408
1409                 $now = time();
1410                 $expires = $now + 7 * 24 * 60 * 60;
1411                 $expiration = wfTimestamp( TS_MW, $expires );
1412
1413                 $token = $this->generateToken( $this->mId . $this->mEmail . $expires );
1414                 $hash = md5( $token );
1415
1416                 $dbw =& wfGetDB( DB_MASTER );
1417                 $dbw->update( 'user',
1418                         array( 'user_email_token'         => $hash,
1419                                'user_email_token_expires' => $dbw->timestamp( $expires ) ),
1420                         array( 'user_id'                  => $this->mId ),
1421                         $fname );
1422
1423                 return $token;
1424         }
1425
1426         /**
1427          * Generate and store a new e-mail confirmation token, and return
1428          * the URL the user can use to confirm.
1429          * @param &$expiration mixed output: accepts the expiration time
1430          * @return string
1431          * @access private
1432          */
1433         function confirmationTokenUrl( &$expiration ) {
1434                 $token = $this->confirmationToken( $expiration );
1435                 $title = Title::makeTitle( NS_SPECIAL, 'Confirmemail/' . $token );
1436                 return $title->getFullUrl();
1437         }
1438
1439         /**
1440          * Mark the e-mail address confirmed and save.
1441          */
1442         function confirmEmail() {
1443                 $this->loadFromDatabase();
1444                 $this->mEmailAuthenticated = wfTimestampNow();
1445                 $this->saveSettings();
1446                 return true;
1447         }
1448
1449         /**
1450          * Is this user allowed to send e-mails within limits of current
1451          * site configuration?
1452          * @return bool
1453          */
1454         function canSendEmail() {
1455                 return $this->isEmailConfirmed();
1456         }
1457
1458         /**
1459          * Is this user allowed to receive e-mails within limits of current
1460          * site configuration?
1461          * @return bool
1462          */
1463         function canReceiveEmail() {
1464                 return $this->canSendEmail() && !$this->getOption( 'disablemail' );
1465         }
1466
1467         /**
1468          * Is this user's e-mail address valid-looking and confirmed within
1469          * limits of the current site configuration?
1470          *
1471          * If $wgEmailAuthentication is on, this may require the user to have
1472          * confirmed their address by returning a code or using a password
1473          * sent to the address from the wiki.
1474          *
1475          * @return bool
1476          */
1477         function isEmailConfirmed() {
1478                 global $wgEmailAuthentication;
1479                 $this->loadFromDatabase();
1480                 if( $this->isAnon() )
1481                         return false;
1482                 if( !$this->isValidEmailAddr( $this->mEmail ) )
1483                         return false;
1484                 if( $wgEmailAuthentication && !$this->getEmailAuthenticationTimestamp() )
1485                         return false;
1486                 return true;
1487         }
1488 }
1489
1490 ?>