]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - includes/User.php
MediaWiki 1.16.5
[autoinstallsdev/mediawiki.git] / includes / User.php
index 2ccc695b39e38db8cbce367ab983cc5fbb17ec9e..fb19ddf2e88f3dca15b0f0f8a72d49cadd99b127 100644 (file)
@@ -14,7 +14,7 @@ define( 'USER_TOKEN_LENGTH', 32 );
  * \int Serialized record version.
  * @ingroup Constants
  */
-define( 'MW_USER_VERSION', 6 );
+define( 'MW_USER_VERSION', 8 );
 
 /**
  * \string Some punctuation to prevent editing from broken text-mangling proxies.
@@ -43,8 +43,8 @@ class PasswordError extends MWException {
 class User {
 
        /**
-        * \type{\arrayof{\string}} A list of default user toggles, i.e., boolean user 
-         * preferences that are displayed by Special:Preferences as checkboxes.
+        * \type{\arrayof{\string}} A list of default user toggles, i.e., boolean user
+        * preferences that are displayed by Special:Preferences as checkboxes.
         * This list can be extended via the UserToggles hook or by
         * $wgContLang::getExtraUserToggles().
         * @showinitializer
@@ -95,8 +95,8 @@ class User {
        );
 
        /**
-        * \type{\arrayof{\string}} List of member variables which are saved to the 
-        * shared cache (memcached). Any operation which changes the 
+        * \type{\arrayof{\string}} List of member variables which are saved to the
+        * shared cache (memcached). Any operation which changes the
         * corresponding database fields must call a cache-clearing function.
         * @showinitializer
         */
@@ -109,7 +109,6 @@ class User {
                'mNewpassword',
                'mNewpassTime',
                'mEmail',
-               'mOptions',
                'mTouched',
                'mToken',
                'mEmailAuthenticated',
@@ -119,11 +118,13 @@ class User {
                'mEditCount',
                // user_group table
                'mGroups',
+               // user_properties table
+               'mOptionOverrides',
        );
 
        /**
         * \type{\arrayof{\string}} Core rights.
-        * Each of these should have a corresponding message of the form 
+        * Each of these should have a corresponding message of the form
         * "right-$right".
         * @showinitializer
         */
@@ -141,6 +142,7 @@ class User {
                'createtalk',
                'delete',
                'deletedhistory',
+               'deletedtext',
                'deleterevision',
                'edit',
                'editinterface',
@@ -166,6 +168,7 @@ class User {
                'reupload',
                'reupload-shared',
                'rollback',
+               'sendemail',
                'siteadmin',
                'suppressionlog',
                'suppressredirect',
@@ -187,14 +190,14 @@ class User {
        /** @name Cache variables */
        //@{
        var $mId, $mName, $mRealName, $mPassword, $mNewpassword, $mNewpassTime,
-               $mEmail, $mOptions, $mTouched, $mToken, $mEmailAuthenticated,
-               $mEmailToken, $mEmailTokenExpires, $mRegistration, $mGroups;
+               $mEmail, $mTouched, $mToken, $mEmailAuthenticated,
+               $mEmailToken, $mEmailTokenExpires, $mRegistration, $mGroups, $mOptionOverrides;
        //@}
 
        /**
         * \bool Whether the cache variables have been loaded.
         */
-       var $mDataLoaded, $mAuthLoaded;
+       var $mDataLoaded, $mAuthLoaded, $mOptionsLoaded;
 
        /**
         * \string Initialization data source if mDataLoaded==false. May be one of:
@@ -210,14 +213,16 @@ class User {
        /** @name Lazy-initialized variables, invalidated with clearInstanceCache */
        //@{
        var $mNewtalk, $mDatePreference, $mBlockedby, $mHash, $mSkin, $mRights,
-               $mBlockreason, $mBlock, $mEffectiveGroups, $mBlockedGlobally, 
-               $mLocked, $mHideName;
+               $mBlockreason, $mBlock, $mEffectiveGroups, $mBlockedGlobally,
+               $mLocked, $mHideName, $mOptions;
        //@}
 
+       static $idCacheByName = array();
+
        /**
         * Lightweight constructor for an anonymous user.
         * Use the User::newFrom* factory functions for other kinds of users.
-        * 
+        *
         * @see newFromName()
         * @see newFromId()
         * @see newFromConfirmationCode()
@@ -310,6 +315,7 @@ class User {
        function saveToCache() {
                $this->load();
                $this->loadGroups();
+               $this->loadOptions();
                if ( $this->isAnon() ) {
                        // Anonymous users are uncached
                        return;
@@ -323,8 +329,8 @@ class User {
                global $wgMemc;
                $wgMemc->set( $key, $data );
        }
-       
-       
+
+
        /** @name newFrom*() static factory methods */
        //@{
 
@@ -339,8 +345,9 @@ class User {
         *    User::getCanonicalName(), except that true is accepted as an alias
         *    for 'valid', for BC.
         *
-        * @return \type{User} The User object, or null if the username is invalid. If the 
-        *    username is not present in the database, the result will be a user object 
+        * @return \type{User} The User object, or false if the username is invalid 
+        *    (e.g. if it contains illegal characters or is an IP address). If the
+        *    username is not present in the database, the result will be a user object
         *    with a name, zero user ID and default settings.
         */
        static function newFromName( $name, $validate = 'valid' ) {
@@ -349,7 +356,7 @@ class User {
                }
                $name = self::getCanonicalName( $name, $validate );
                if ( $name === false ) {
-                       return null;
+                       return false;
                } else {
                        # Create unloaded user object
                        $u = new User;
@@ -418,9 +425,9 @@ class User {
                $user->loadFromRow( $row );
                return $user;
        }
-       
+
        //@}
-       
+
 
        /**
         * Get the username corresponding to a given user ID
@@ -429,7 +436,7 @@ class User {
         */
        static function whoIs( $id ) {
                $dbr = wfGetDB( DB_SLAVE );
-               return $dbr->selectField( 'user', 'user_name', array( 'user_id' => $id ), 'User::whoIs' );
+               return $dbr->selectField( 'user', 'user_name', array( 'user_id' => $id ), __METHOD__ );
        }
 
        /**
@@ -454,14 +461,27 @@ class User {
                        # Illegal name
                        return null;
                }
+
+               if ( isset( self::$idCacheByName[$name] ) ) {
+                       return self::$idCacheByName[$name];
+               }
+
                $dbr = wfGetDB( DB_SLAVE );
                $s = $dbr->selectRow( 'user', array( 'user_id' ), array( 'user_name' => $nt->getText() ), __METHOD__ );
 
                if ( $s === false ) {
-                       return 0;
+                       $result = null;
                } else {
-                       return $s->user_id;
+                       $result = $s->user_id;
+               }
+
+               self::$idCacheByName[$name] = $result;
+
+               if ( count( self::$idCacheByName ) > 1000 ) {
+                       self::$idCacheByName = array();
                }
+
+               return $result;
        }
 
        /**
@@ -599,21 +619,45 @@ class User {
        /**
         * Is the input a valid password for this user?
         *
-        * @param $password \string Desired password
-        * @return \bool True or false
+        * @param $password String Desired password
+        * @return bool True or false
         */
        function isValidPassword( $password ) {
+               //simple boolean wrapper for getPasswordValidity
+               return $this->getPasswordValidity( $password ) === true;
+       }
+
+       /**
+        * Given unvalidated password input, return error message on failure.
+        *
+        * @param $password String Desired password
+        * @return mixed: true on success, string of error message on failure
+        */
+       function getPasswordValidity( $password ) {
                global $wgMinimalPasswordLength, $wgContLang;
 
-               $result = null;
+               $result = false; //init $result to false for the internal checks
+
                if( !wfRunHooks( 'isValidPassword', array( $password, &$result, $this ) ) )
                        return $result;
-               if( $result === false )
-                       return false;
 
-               // Password needs to be long enough, and can't be the same as the username
-               return strlen( $password ) >= $wgMinimalPasswordLength
-                       && $wgContLang->lc( $password ) !== $wgContLang->lc( $this->mName );
+               if ( $result === false ) {
+                       if( strlen( $password ) < $wgMinimalPasswordLength ) {
+                               return 'passwordtooshort';
+                       } elseif ( $wgContLang->lc( $password ) == $wgContLang->lc( $this->mName ) ) {
+                               return 'password-name-match';
+                       } else {
+                               //it seems weird returning true here, but this is because of the
+                               //initialization of $result to false above. If the hook is never run or it
+                               //doesn't modify $result, then we will likely get down into this if with
+                               //a valid password.
+                               return true;
+                       }
+               } elseif( $result === true ) {
+                       return true;
+               } else {
+                       return $result; //the isValidPassword hook set a string $result and returned true
+               }
        }
 
        /**
@@ -659,7 +703,7 @@ class User {
                        return false;
 
                # Clean up name according to title rules
-               $t = ($validate === 'valid') ? 
+               $t = ( $validate === 'valid' ) ?
                        Title::newFromText( $name ) : Title::makeTitle( NS_USER, $name );
                # Check for invalid titles
                if( is_null( $t ) ) {
@@ -690,7 +734,7 @@ class User {
                                }
                                break;
                        default:
-                               throw new MWException( 'Invalid parameter value for $validate in '.__METHOD__ );
+                               throw new MWException( 'Invalid parameter value for $validate in ' . __METHOD__ );
                }
                return $name;
        }
@@ -744,18 +788,18 @@ class User {
                $l = strlen( $pwchars ) - 1;
 
                $pwlength = max( 7, $wgMinimalPasswordLength );
-               $digit = mt_rand(0, $pwlength - 1);
+               $digit = mt_rand( 0, $pwlength - 1 );
                $np = '';
                for ( $i = 0; $i < $pwlength; $i++ ) {
-                       $np .= $i == $digit ? chr( mt_rand(48, 57) ) : $pwchars{ mt_rand(0, $l)};
+                       $np .= $i == $digit ? chr( mt_rand( 48, 57 ) ) : $pwchars{ mt_rand( 0, $l ) };
                }
                return $np;
        }
 
        /**
-        * Set cached properties to default. 
+        * Set cached properties to default.
         *
-        * @note This no longer clears uncached lazy-initialised properties; 
+        * @note This no longer clears uncached lazy-initialised properties;
         *       the constructor does that instead.
         * @private
         */
@@ -770,7 +814,8 @@ class User {
                $this->mPassword = $this->mNewpassword = '';
                $this->mNewpassTime = null;
                $this->mEmail = '';
-               $this->mOptions = null; # Defer init
+               $this->mOptionOverrides = null;
+               $this->mOptionsLoaded = false;
 
                if ( isset( $_COOKIE[$wgCookiePrefix.'LoggedOut'] ) ) {
                        $this->mTouched = wfTimestamp( TS_MW, $_COOKIE[$wgCookiePrefix.'LoggedOut'] );
@@ -804,7 +849,7 @@ class User {
         * @return \bool True if the user is logged in, false otherwise.
         */
        private function loadFromSession() {
-               global $wgMemc, $wgCookiePrefix;
+               global $wgMemc, $wgCookiePrefix, $wgExternalAuthType, $wgAutocreatePolicy;
 
                $result = null;
                wfRunHooks( 'UserLoadFromSession', array( $this, &$result ) );
@@ -812,11 +857,19 @@ class User {
                        return $result;
                }
 
+               if ( $wgExternalAuthType && $wgAutocreatePolicy == 'view' ) {
+                       $extUser = ExternalUser::newFromCookie();
+                       if ( $extUser ) {
+                               # TODO: Automatically create the user here (or probably a bit
+                               # lower down, in fact)
+                       }
+               }
+
                if ( isset( $_COOKIE["{$wgCookiePrefix}UserID"] ) ) {
                        $sId = intval( $_COOKIE["{$wgCookiePrefix}UserID"] );
                        if( isset( $_SESSION['wsUserID'] ) && $sId != $_SESSION['wsUserID'] ) {
                                $this->loadDefaults(); // Possible collision!
-                               wfDebugLog( 'loginSessions', "Session user ID ({$_SESSION['wsUserID']}) and 
+                               wfDebugLog( 'loginSessions', "Session user ID ({$_SESSION['wsUserID']}) and
                                        cookie user ID ($sId) don't match!" );
                                return false;
                        }
@@ -844,17 +897,25 @@ class User {
                }
 
                $passwordCorrect = FALSE;
-               $this->mId = $sId;
-               if ( !$this->loadFromId() ) {
-                       # Not a valid ID, loadFromId has switched the object to anon for us
+               $proposedUser = User::newFromId( $sId );
+               if ( !$proposedUser->isLoggedIn() ) {
+                       # Not a valid ID
+                       $this->loadDefaults();
+                       return false;
+               }
+
+               global $wgBlockDisablesLogin;
+               if( $wgBlockDisablesLogin && $proposedUser->isBlocked() ) {
+                       # User blocked and we've disabled blocked user logins
+                       $this->loadDefaults();
                        return false;
                }
 
                if ( isset( $_SESSION['wsToken'] ) ) {
-                       $passwordCorrect = $_SESSION['wsToken'] == $this->mToken;
+                       $passwordCorrect = $proposedUser->getToken() === $_SESSION['wsToken'];
                        $from = 'session';
                } else if ( isset( $_COOKIE["{$wgCookiePrefix}Token"] ) ) {
-                       $passwordCorrect = $this->mToken == $_COOKIE["{$wgCookiePrefix}Token"];
+                       $passwordCorrect = $proposedUser->getToken() === $_COOKIE["{$wgCookiePrefix}Token"];
                        $from = 'cookie';
                } else {
                        # No session or persistent login cookie
@@ -862,7 +923,8 @@ class User {
                        return false;
                }
 
-               if ( ( $sName == $this->mName ) && $passwordCorrect ) {
+               if ( ( $sName === $proposedUser->getName() ) && $passwordCorrect ) {
+                       $this->loadFromUserObject( $proposedUser );
                        $_SESSION['wsToken'] = $this->mToken;
                        wfDebug( "Logged in from $from\n" );
                        return true;
@@ -874,6 +936,18 @@ class User {
                }
        }
 
+       /**
+        * Load the data for this user object from another user object. 
+        */
+       protected function loadFromUserObject( $user ) {
+               $user->load();
+               $user->loadGroups();
+               $user->loadOptions();
+               foreach ( self::$mCacheVars as $var ) {
+                       $this->$var = $user->$var;
+               }
+       }
+
        /**
         * Load user and user_group data from the database.
         * $this::mId must be set, this is how the user is identified.
@@ -934,7 +1008,7 @@ class User {
                $this->mEmailToken = $row->user_email_token;
                $this->mEmailTokenExpires = wfTimestampOrNull( TS_MW, $row->user_email_token_expires );
                $this->mRegistration = wfTimestampOrNull( TS_MW, $row->user_registration );
-               $this->mEditCount = $row->user_editcount; 
+               $this->mEditCount = $row->user_editcount;
        }
 
        /**
@@ -969,6 +1043,7 @@ class User {
                $this->mSkin = null;
                $this->mRights = null;
                $this->mEffectiveGroups = null;
+               $this->mOptions = null;
 
                if ( $reloadFrom ) {
                        $this->mDataLoaded = false;
@@ -987,7 +1062,7 @@ class User {
                /**
                 * Site defaults will override the global/language defaults
                 */
-               global $wgDefaultUserOptions, $wgContLang;
+               global $wgDefaultUserOptions, $wgContLang, $wgDefaultSkin;
                $defOpt = $wgDefaultUserOptions + $wgContLang->getDefaultUserOptionOverrides();
 
                /**
@@ -996,10 +1071,11 @@ class User {
                $variant = $wgContLang->getPreferredVariant( false );
                $defOpt['variant'] = $variant;
                $defOpt['language'] = $variant;
-
-               foreach( $wgNamespacesToBeSearchedDefault as $nsnum => $val ) {
-                       $defOpt['searchNs'.$nsnum] = $val;
+               foreach( SearchEngine::searchableNamespaces() as $nsnum => $nsname ) {
+                       $defOpt['searchNs'.$nsnum] = !empty( $wgNamespacesToBeSearchedDefault[$nsnum] );
                }
+               $defOpt['skin'] = $wgDefaultSkin;
+
                return $defOpt;
        }
 
@@ -1014,7 +1090,7 @@ class User {
                if( isset( $defOpts[$opt] ) ) {
                        return $defOpts[$opt];
                } else {
-                       return '';
+                       return null;
                }
        }
 
@@ -1044,7 +1120,7 @@ class User {
         *                    done against master.
         */
        function getBlockedStatus( $bFromSlave = true ) {
-               global $wgEnableSorbs, $wgProxyWhitelist;
+               global $wgProxyWhitelist, $wgUser;
 
                if ( -1 != $this->mBlockedby ) {
                        wfDebug( "User::getBlockedStatus: already loaded.\n" );
@@ -1060,13 +1136,27 @@ class User {
                // due to -1 !== 0. Probably session-related... Nothing should be
                // overwriting mBlockedby, surely?
                $this->load();
-               
+
                $this->mBlockedby = 0;
                $this->mHideName = 0;
                $this->mAllowUsertalk = 0;
-               $ip = wfGetIP();
 
-               if ($this->isAllowed( 'ipblock-exempt' ) ) {
+               # Check if we are looking at an IP or a logged-in user
+               if ( $this->isIP( $this->getName() ) ) {
+                       $ip = $this->getName();
+               } else {
+                       # Check if we are looking at the current user
+                       # If we don't, and the user is logged in, we don't know about
+                       # his IP / autoblock status, so ignore autoblock of current user's IP
+                       if ( $this->getID() != $wgUser->getID() ) {
+                               $ip = '';
+                       } else {
+                               # Get IP of current user
+                               $ip = wfGetIP();
+                       }
+               }
+
+               if ( $this->isAllowed( 'ipblock-exempt' ) ) {
                        # Exempt from all types of IP-block
                        $ip = '';
                }
@@ -1075,22 +1165,24 @@ class User {
                $this->mBlock = new Block();
                $this->mBlock->fromMaster( !$bFromSlave );
                if ( $this->mBlock->load( $ip , $this->mId ) ) {
-                       wfDebug( __METHOD__.": Found block.\n" );
+                       wfDebug( __METHOD__ . ": Found block.\n" );
                        $this->mBlockedby = $this->mBlock->mBy;
+                       if( $this->mBlockedby == "0" )
+                               $this->mBlockedby = $this->mBlock->mByName;
                        $this->mBlockreason = $this->mBlock->mReason;
                        $this->mHideName = $this->mBlock->mHideName;
                        $this->mAllowUsertalk = $this->mBlock->mAllowUsertalk;
-                       if ( $this->isLoggedIn() ) {
+                       if ( $this->isLoggedIn() && $wgUser->getID() == $this->getID() ) {
                                $this->spreadBlock();
                        }
                } else {
-                       // Bug 13611: don't remove mBlock here, to allow account creation blocks to 
-                       // apply to users. Note that the existence of $this->mBlock is not used to 
+                       // Bug 13611: don't remove mBlock here, to allow account creation blocks to
+                       // apply to users. Note that the existence of $this->mBlock is not used to
                        // check for edit blocks, $this->mBlockedby is instead.
                }
 
                # Proxy blocking
-               if ( !$this->isAllowed('proxyunbannable') && !in_array( $ip, $wgProxyWhitelist ) ) {
+               if ( !$this->isAllowed( 'proxyunbannable' ) && !in_array( $ip, $wgProxyWhitelist ) ) {
                        # Local list
                        if ( wfIsLocallyBlockedProxy( $ip ) ) {
                                $this->mBlockedby = wfMsg( 'proxyblocker' );
@@ -1098,8 +1190,8 @@ class User {
                        }
 
                        # DNSBL
-                       if ( !$this->mBlockedby && $wgEnableSorbs && !$this->getID() ) {
-                               if ( $this->inSorbsBlacklist( $ip ) ) {
+                       if ( !$this->mBlockedby && !$this->getID() ) {
+                               if ( $this->isDnsBlacklisted( $ip ) ) {
                                        $this->mBlockedby = wfMsg( 'sorbs' );
                                        $this->mBlockreason = wfMsg( 'sorbsreason' );
                                }
@@ -1113,43 +1205,57 @@ class User {
        }
 
        /**
-        * Whether the given IP is in the SORBS blacklist.
+        * Whether the given IP is in a DNS blacklist.
         *
         * @param $ip \string IP to check
+        * @param $checkWhitelist Boolean: whether to check the whitelist first
         * @return \bool True if blacklisted.
         */
-       function inSorbsBlacklist( $ip ) {
-               global $wgEnableSorbs, $wgSorbsUrl;
+       function isDnsBlacklisted( $ip, $checkWhitelist = false ) {
+               global $wgEnableSorbs, $wgEnableDnsBlacklist,
+                       $wgSorbsUrl, $wgDnsBlacklistUrls, $wgProxyWhitelist;
+
+               if ( !$wgEnableDnsBlacklist && !$wgEnableSorbs )
+                       return false;
+
+               if ( $checkWhitelist && in_array( $ip, $wgProxyWhitelist ) )
+                       return false;
 
-               return $wgEnableSorbs &&
-                       $this->inDnsBlacklist( $ip, $wgSorbsUrl );
+               $urls = array_merge( $wgDnsBlacklistUrls, (array)$wgSorbsUrl );
+               return $this->inDnsBlacklist( $ip, $urls );
        }
 
        /**
         * Whether the given IP is in a given DNS blacklist.
         *
         * @param $ip \string IP to check
-        * @param $base \string URL of the DNS blacklist
+        * @param $bases \string or Array of Strings: URL of the DNS blacklist
         * @return \bool True if blacklisted.
         */
-       function inDnsBlacklist( $ip, $base ) {
+       function inDnsBlacklist( $ip, $bases ) {
                wfProfileIn( __METHOD__ );
 
                $found = false;
                $host = '';
                // FIXME: IPv6 ???  (http://bugs.php.net/bug.php?id=33170)
-               if( IP::isIPv4($ip) ) {
-                       # Make hostname
-                       $host = "$ip.$base";
+               if( IP::isIPv4( $ip ) ) {
+                       # Reverse IP, bug 21255
+                       $ipReversed = implode( '.', array_reverse( explode( '.', $ip ) ) );
 
-                       # Send query
-                       $ipList = gethostbynamel( $host );
+                       foreach( (array)$bases as $base ) {
+                               # Make hostname
+                               $host = "$ipReversed.$base";
 
-                       if( $ipList ) {
-                               wfDebug( "Hostname $host is {$ipList[0]}, it's a proxy says $base!\n" );
-                               $found = true;
-                       } else {
-                               wfDebug( "Requested $host, not found in $base.\n" );
+                               # Send query
+                               $ipList = gethostbynamel( $host );
+
+                               if( $ipList ) {
+                                       wfDebug( "Hostname $host is {$ipList[0]}, it's a proxy says $base!\n" );
+                                       $found = true;
+                                       break;
+                               } else {
+                                       wfDebug( "Requested $host, not found in $base.\n" );
+                               }
                        }
                }
 
@@ -1188,8 +1294,7 @@ class User {
         * @param $action \string Action to enforce; 'edit' if unspecified
         * @return \bool True if a rate limiter was tripped
         */
-       function pingLimiter( $action='edit' ) {
-
+       function pingLimiter( $action = 'edit' ) {
                # Call the 'PingLimiter' hook
                $result = false;
                if( !wfRunHooks( 'PingLimiter', array( &$this, $action, $result ) ) ) {
@@ -1245,7 +1350,7 @@ class User {
                }
                // Set the user limit key
                if ( $userLimit !== false ) {
-                       wfDebug( __METHOD__.": effective user limit: $userLimit\n" );
+                       wfDebug( __METHOD__ . ": effective user limit: $userLimit\n" );
                        $keys[ wfMemcKey( 'limiter', $action, 'user', $id ) ] = $userLimit;
                }
 
@@ -1254,19 +1359,20 @@ class User {
                        list( $max, $period ) = $limit;
                        $summary = "(limit $max in {$period}s)";
                        $count = $wgMemc->get( $key );
+                       // Already pinged?
                        if( $count ) {
                                if( $count > $max ) {
-                                       wfDebug( __METHOD__.": tripped! $key at $count $summary\n" );
+                                       wfDebug( __METHOD__ . ": tripped! $key at $count $summary\n" );
                                        if( $wgRateLimitLog ) {
                                                @error_log( wfTimestamp( TS_MW ) . ' ' . wfWikiID() . ': ' . $this->getName() . " tripped $key at $count $summary\n", 3, $wgRateLimitLog );
                                        }
                                        $triggered = true;
                                } else {
-                                       wfDebug( __METHOD__.": ok. $key at $count $summary\n" );
+                                       wfDebug( __METHOD__ . ": ok. $key at $count $summary\n" );
                                }
                        } else {
-                               wfDebug( __METHOD__.": adding record for $key $summary\n" );
-                               $wgMemc->add( $key, 1, intval( $period ) );
+                               wfDebug( __METHOD__ . ": adding record for $key $summary\n" );
+                               $wgMemc->add( $key, 0, intval( $period ) ); // first ping
                        }
                        $wgMemc->incr( $key );
                }
@@ -1277,7 +1383,7 @@ class User {
 
        /**
         * Check if user is blocked
-        * 
+        *
         * @param $bFromSlave \bool Whether to check the slave database instead of the master
         * @return \bool True if blocked, false otherwise
         */
@@ -1289,7 +1395,7 @@ class User {
 
        /**
         * Check if user is blocked from editing a particular article
-        * 
+        *
         * @param $title      \string Title to check
         * @param $bFromSlave \bool   Whether to check the slave database instead of the master
         * @return \bool True if blocked, false otherwise
@@ -1297,17 +1403,20 @@ class User {
        function isBlockedFrom( $title, $bFromSlave = false ) {
                global $wgBlockAllowsUTEdit;
                wfProfileIn( __METHOD__ );
-               wfDebug( __METHOD__.": enter\n" );
+               wfDebug( __METHOD__ . ": enter\n" );
 
-               wfDebug( __METHOD__.": asking isBlocked()\n" );
+               wfDebug( __METHOD__ . ": asking isBlocked()\n" );
                $blocked = $this->isBlocked( $bFromSlave );
-               $allowUsertalk = ($wgBlockAllowsUTEdit ? $this->mAllowUsertalk : false);
+               $allowUsertalk = ( $wgBlockAllowsUTEdit ? $this->mAllowUsertalk : false );
                # If a user's name is suppressed, they cannot make edits anywhere
                if ( !$this->mHideName && $allowUsertalk && $title->getText() === $this->getName() &&
                  $title->getNamespace() == NS_USER_TALK ) {
                        $blocked = false;
-                       wfDebug( __METHOD__.": self-talk page, ignoring any blocks\n" );
+                       wfDebug( __METHOD__ . ": self-talk page, ignoring any blocks\n" );
                }
+
+               wfRunHooks( 'UserIsBlockedFrom', array( $this, $title, &$blocked, &$allowUsertalk ) );
+
                wfProfileOut( __METHOD__ );
                return $blocked;
        }
@@ -1329,21 +1438,21 @@ class User {
                $this->getBlockedStatus();
                return $this->mBlockreason;
        }
-       
+
        /**
         * If user is blocked, return the ID for the block
         * @return \int Block ID
         */
        function getBlockId() {
                $this->getBlockedStatus();
-               return ($this->mBlock ? $this->mBlock->mId : false);
+               return ( $this->mBlock ? $this->mBlock->mId : false );
        }
-       
+
        /**
         * Check if user is blocked on all wikis.
         * Do not use for actual edit permission checks!
         * This is intented for quick UI checks.
-        * 
+        *
         * @param $ip \type{\string} IP address, uses current client if none given
         * @return \type{\bool} True if blocked, false otherwise
         */
@@ -1362,10 +1471,10 @@ class User {
                $this->mBlockedGlobally = (bool)$blocked;
                return $this->mBlockedGlobally;
        }
-       
+
        /**
         * Check if user account is locked
-        * 
+        *
         * @return \type{\bool} True if locked, false otherwise
         */
        function isLocked() {
@@ -1377,10 +1486,10 @@ class User {
                $this->mLocked = (bool)$authUser->isLocked();
                return $this->mLocked;
        }
-       
+
        /**
         * Check if user account is hidden
-        * 
+        *
         * @return \type{\bool} True if hidden, false otherwise
         */
        function isHidden() {
@@ -1504,17 +1613,16 @@ class User {
         */
        function getNewMessageLinks() {
                $talks = array();
-               if (!wfRunHooks('UserRetrieveNewTalks', array(&$this, &$talks)))
+               if( !wfRunHooks( 'UserRetrieveNewTalks', array( &$this, &$talks ) ) )
                        return $talks;
 
-               if (!$this->getNewtalk())
+               if( !$this->getNewtalk() )
                        return array();
                $up = $this->getUserPage();
                $utp = $up->getTalkPage();
-               return array(array("wiki" => wfWikiID(), "link" => $utp->getLocalURL()));
+               return array( array( 'wiki' => wfWikiID(), 'link' => $utp->getLocalURL() ) );
        }
 
-
        /**
         * Internal uncached check for new messages
         *
@@ -1550,10 +1658,10 @@ class User {
                        __METHOD__,
                        'IGNORE' );
                if ( $dbw->affectedRows() ) {
-                       wfDebug( __METHOD__.": set on ($field, $id)\n" );
+                       wfDebug( __METHOD__ . ": set on ($field, $id)\n" );
                        return true;
                } else {
-                       wfDebug( __METHOD__." already set ($field, $id)\n" );
+                       wfDebug( __METHOD__ . " already set ($field, $id)\n" );
                        return false;
                }
        }
@@ -1571,10 +1679,10 @@ class User {
                        array( $field => $id ),
                        __METHOD__ );
                if ( $dbw->affectedRows() ) {
-                       wfDebug( __METHOD__.": killed on ($field, $id)\n" );
+                       wfDebug( __METHOD__ . ": killed on ($field, $id)\n" );
                        return true;
                } else {
-                       wfDebug( __METHOD__.": already gone ($field, $id)\n" );
+                       wfDebug( __METHOD__ . ": already gone ($field, $id)\n" );
                        return false;
                }
        }
@@ -1648,6 +1756,9 @@ class User {
         * for reload on the next hit.
         */
        function invalidateCache() {
+               if( wfReadOnly() ) {
+                       return;
+               }
                $this->load();
                if( $this->mId ) {
                        $this->mTouched = self::newTouchedTimestamp();
@@ -1668,7 +1779,7 @@ class User {
         */
        function validateCache( $timestamp ) {
                $this->load();
-               return ($timestamp >= $this->mTouched);
+               return ( $timestamp >= $this->mTouched );
        }
 
        /**
@@ -1702,10 +1813,11 @@ class User {
                        }
 
                        if( !$this->isValidPassword( $str ) ) {
-                               global $wgMinimalPasswordLength;
-                               throw new PasswordError( wfMsgExt( 'passwordtooshort', array( 'parsemag' ),
+                               global $wgMinimalPasswordLength;
+                               $valid = $this->getPasswordValidity( $str );
+                               throw new PasswordError( wfMsgExt( $valid, array( 'parsemag' ),
                                        $wgMinimalPasswordLength ) );
-                       }
+                       }
                }
 
                if( !$wgAuth->setPassword( $this, $str ) ) {
@@ -1735,7 +1847,7 @@ class User {
                $this->mNewpassword = '';
                $this->mNewpassTime = null;
        }
-       
+
        /**
         * Get the user's current token.
         * @return \string Token
@@ -1744,7 +1856,7 @@ class User {
                $this->load();
                return $this->mToken;
        }
-       
+
        /**
         * Set the random token (used for persistent authentication)
         * Called from loadDefaults() among other places.
@@ -1768,7 +1880,7 @@ class User {
                        $this->mToken = $token;
                }
        }
-       
+
        /**
         * Set the cookie password
         *
@@ -1795,7 +1907,7 @@ class User {
        }
 
        /**
-        * Has password reminder email been sent within the last 
+        * Has password reminder email been sent within the last
         * $wgPasswordReminderResendTime hours?
         * @return \bool True or false
         */
@@ -1866,8 +1978,8 @@ class User {
         * @see getBoolOption()
         * @see getIntOption()
         */
-       function getOption( $oname, $defaultOverride = '' ) {
-               $this->load();
+       function getOption( $oname, $defaultOverride = null ) {
+               $this->loadOptions();
 
                if ( is_null( $this->mOptions ) ) {
                        if($defaultOverride != '') {
@@ -1877,12 +1989,22 @@ class User {
                }
 
                if ( array_key_exists( $oname, $this->mOptions ) ) {
-                       return trim( $this->mOptions[$oname] );
+                       return $this->mOptions[$oname];
                } else {
                        return $defaultOverride;
                }
        }
-       
+
+       /**
+        * Get all user's options
+        *
+        * @return array
+        */
+       public function getOptions() {
+               $this->loadOptions();
+               return $this->mOptions;
+       }
+
        /**
         * Get the user's current setting for a given option, as a boolean value.
         *
@@ -1894,7 +2016,7 @@ class User {
                return (bool)$this->getOption( $oname );
        }
 
-       
+
        /**
         * Get the user's current setting for a given option, as a boolean value.
         *
@@ -1919,32 +2041,26 @@ class User {
         */
        function setOption( $oname, $val ) {
                $this->load();
-               if ( is_null( $this->mOptions ) ) {
-                       $this->mOptions = User::getDefaultOptions();
-               }
+               $this->loadOptions();
+
                if ( $oname == 'skin' ) {
                        # Clear cached skin, so the new one displays immediately in Special:Preferences
                        unset( $this->mSkin );
                }
-               // Filter out any newlines that may have passed through input validation.
-               // Newlines are used to separate items in the options blob.
-               if( $val ) {
-                       $val = str_replace( "\r\n", "\n", $val );
-                       $val = str_replace( "\r", "\n", $val );
-                       $val = str_replace( "\n", " ", $val );
-               }
+
                // Explicitly NULL values should refer to defaults
                global $wgDefaultUserOptions;
-               if( is_null($val) && isset($wgDefaultUserOptions[$oname]) ) {
+               if( is_null( $val ) && isset( $wgDefaultUserOptions[$oname] ) ) {
                        $val = $wgDefaultUserOptions[$oname];
                }
+
                $this->mOptions[$oname] = $val;
        }
-       
+
        /**
         * Reset all options to the site defaults
-        */     
-       function restoreOptions() {
+        */
+       function resetOptions() {
                $this->mOptions = User::getDefaultOptions();
        }
 
@@ -1999,6 +2115,7 @@ class User {
         */
        function getEffectiveGroups( $recache = false ) {
                if ( $recache || is_null( $this->mEffectiveGroups ) ) {
+                       wfProfileIn( __METHOD__ );
                        $this->mEffectiveGroups = $this->getGroups();
                        $this->mEffectiveGroups[] = '*';
                        if( $this->getId() ) {
@@ -2012,6 +2129,7 @@ class User {
                                # Hook for additional groups
                                wfRunHooks( 'UserEffectiveGroups', array( &$this, &$this->mEffectiveGroups ) );
                        }
+                       wfProfileOut( __METHOD__ );
                }
                return $this->mEffectiveGroups;
        }
@@ -2021,10 +2139,10 @@ class User {
         * @return \int User'e edit count
         */
        function getEditCount() {
-               if ($this->getId()) {
+               if( $this->getId() ) {
                        if ( !isset( $this->mEditCount ) ) {
                                /* Populate the count, if it has not been populated yet */
-                               $this->mEditCount = User::edits($this->mId);
+                               $this->mEditCount = User::edits( $this->mId );
                        }
                        return $this->mEditCount;
                } else {
@@ -2079,7 +2197,6 @@ class User {
                $this->invalidateCache();
        }
 
-
        /**
         * Get whether the user is logged in
         * @return \bool True or false
@@ -2120,51 +2237,61 @@ class User {
                        if( !$wgUseRCPatrol && !$wgUseNPPatrol )
                                return false;
                }
-               # Use strict parameter to avoid matching numeric 0 accidentally inserted 
+               # Use strict parameter to avoid matching numeric 0 accidentally inserted
                # by misconfiguration: 0 == 'foo'
                return in_array( $action, $this->getRights(), true );
        }
 
        /**
-       * Check whether to enable recent changes patrol features for this user
-       * @return \bool True or false
-       */
+        * Check whether to enable recent changes patrol features for this user
+        * @return \bool True or false
+        */
        public function useRCPatrol() {
                global $wgUseRCPatrol;
-               return( $wgUseRCPatrol && ($this->isAllowed('patrol') || $this->isAllowed('patrolmarks')) );
+               return( $wgUseRCPatrol && ( $this->isAllowed( 'patrol' ) || $this->isAllowed( 'patrolmarks' ) ) );
        }
 
        /**
-       * Check whether to enable new pages patrol features for this user
-       * @return \bool True or false
-       */
+        * Check whether to enable new pages patrol features for this user
+        * @return \bool True or false
+        */
        public function useNPPatrol() {
                global $wgUseRCPatrol, $wgUseNPPatrol;
-               return( ($wgUseRCPatrol || $wgUseNPPatrol) && ($this->isAllowed('patrol') || $this->isAllowed('patrolmarks')) );
+               return( ( $wgUseRCPatrol || $wgUseNPPatrol ) && ( $this->isAllowed( 'patrol' ) || $this->isAllowed( 'patrolmarks' ) ) );
        }
 
        /**
-        * Get the current skin, loading it if required
-        * @return \type{Skin} Current skin
+        * Get the current skin, loading it if required, and setting a title
+        * @param $t Title: the title to use in the skin
+        * @return Skin The current skin
         * @todo FIXME : need to check the old failback system [AV]
         */
-       function &getSkin() {
-               global $wgRequest, $wgAllowUserSkin, $wgDefaultSkin;
-               if ( ! isset( $this->mSkin ) ) {
+       function &getSkin( $t = null ) {
+               if ( !isset( $this->mSkin ) ) {
                        wfProfileIn( __METHOD__ );
 
-                       if( $wgAllowUserSkin ) {
+                       global $wgHiddenPrefs;
+                       if( !in_array( 'skin', $wgHiddenPrefs ) ) {
                                # get the user skin
+                               global $wgRequest;
                                $userSkin = $this->getOption( 'skin' );
-                               $userSkin = $wgRequest->getVal('useskin', $userSkin);
+                               $userSkin = $wgRequest->getVal( 'useskin', $userSkin );
                        } else {
                                # if we're not allowing users to override, then use the default
+                               global $wgDefaultSkin;
                                $userSkin = $wgDefaultSkin;
                        }
-                       
+
                        $this->mSkin =& Skin::newFromKey( $userSkin );
                        wfProfileOut( __METHOD__ );
                }
+               if( $t || !$this->mSkin->getTitle() ) {
+                       if ( !$t ) {
+                               global $wgOut;
+                               $t = $wgOut->getTitle();
+                       }
+                       $this->mSkin->setTitle( $t );
+               }
                return $this->mSkin;
        }
 
@@ -2212,9 +2339,9 @@ class User {
                        return;
                }
 
-               if ($title->getNamespace() == NS_USER_TALK &&
+               if$title->getNamespace() == NS_USER_TALK &&
                        $title->getText() == $this->getName() ) {
-                       if (!wfRunHooks('UserClearNewTalkNotification', array(&$this)))
+                       if( !wfRunHooks( 'UserClearNewTalkNotification', array( &$this ) ) )
                                return;
                        $this->setNewtalk( false );
                }
@@ -2232,8 +2359,8 @@ class User {
                // The query to find out if it is watched is cached both in memcached and per-invocation,
                // and when it does have to be executed, it can be on a slave
                // If this is the user's newtalk page, we always update the timestamp
-               if ($title->getNamespace() == NS_USER_TALK &&
-                       $title->getText() == $wgUser->getName())
+               if$title->getNamespace() == NS_USER_TALK &&
+                       $title->getText() == $wgUser->getName() )
                {
                        $watched = true;
                } elseif ( $this->getId() == $wgUser->getId() ) {
@@ -2248,7 +2375,7 @@ class User {
                        $dbw = wfGetDB( DB_MASTER );
                        $dbw->update( 'watchlist',
                                        array( /* SET */
-                                               'wl_notificationtimestamp' => NULL
+                                               'wl_notificationtimestamp' => null
                                        ), array( /* WHERE */
                                                'wl_title' => $title->getDBkey(),
                                                'wl_namespace' => $title->getNamespace(),
@@ -2275,7 +2402,7 @@ class User {
                        $dbw = wfGetDB( DB_MASTER );
                        $dbw->update( 'watchlist',
                                array( /* SET */
-                                       'wl_notificationtimestamp' => NULL
+                                       'wl_notificationtimestamp' => null
                                ), array( /* WHERE */
                                        'wl_user' => $currentUser
                                ), __METHOD__
@@ -2285,53 +2412,42 @@ class User {
                }
        }
 
-       /**
-        * Encode this user's options as a string
-        * @return \string Encoded options
-        * @private
-        */
-       function encodeOptions() {
-               $this->load();
-               if ( is_null( $this->mOptions ) ) {
-                       $this->mOptions = User::getDefaultOptions();
-               }
-               $a = array();
-               foreach ( $this->mOptions as $oname => $oval ) {
-                       array_push( $a, $oname.'='.$oval );
-               }
-               $s = implode( "\n", $a );
-               return $s;
-       }
-
        /**
         * Set this user's options from an encoded string
         * @param $str \string Encoded options to import
         * @private
         */
        function decodeOptions( $str ) {
+               if( !$str )
+                       return;
+
+               $this->mOptionsLoaded = true;
+               $this->mOptionOverrides = array();
+
                $this->mOptions = array();
                $a = explode( "\n", $str );
                foreach ( $a as $s ) {
                        $m = array();
                        if ( preg_match( "/^(.[^=]*)=(.*)$/", $s, $m ) ) {
                                $this->mOptions[$m[1]] = $m[2];
+                               $this->mOptionOverrides[$m[1]] = $m[2];
                        }
                }
        }
-       
+
        /**
-        * Set a cookie on the user's client. Wrapper for 
+        * Set a cookie on the user's client. Wrapper for
         * WebResponse::setCookie
         * @param $name \string Name of the cookie to set
         * @param $value \string Value to set
-        * @param $exp \int Expiration time, as a UNIX time value; 
+        * @param $exp \int Expiration time, as a UNIX time value;
         *                   if 0 or not specified, use the default $wgCookieExpiration
         */
-       protected function setCookie( $name, $value, $exp=0 ) {
+       protected function setCookie( $name, $value, $exp = 0 ) {
                global $wgRequest;
                $wgRequest->response()->setcookie( $name, $value, $exp );
        }
-       
+
        /**
         * Clear a cookie on the user's client
         * @param $name \string Name of the cookie to clear
@@ -2346,7 +2462,7 @@ class User {
        function setCookies() {
                $this->load();
                if ( 0 == $this->mId ) return;
-               $session = array( 
+               $session = array(
                        'wsUserID' => $this->mId,
                        'wsToken' => $this->mToken,
                        'wsUserName' => $this->getName()
@@ -2360,9 +2476,9 @@ class User {
                } else {
                        $cookies['Token'] = false;
                }
-               
+
                wfRunHooks( 'UserSetCookies', array( $this, &$session, &$cookies ) );
-               #check for null, since the hook could cause a null value 
+               #check for null, since the hook could cause a null value
                if ( !is_null( $session ) && isset( $_SESSION ) ){
                        $_SESSION = $session + $_SESSION;
                }
@@ -2379,8 +2495,7 @@ class User {
         * Log this user out.
         */
        function logout() {
-               global $wgUser;
-               if( wfRunHooks( 'UserLogout', array(&$this) ) ) {
+               if( wfRunHooks( 'UserLogout', array( &$this ) ) ) {
                        $this->doLogout();
                }
        }
@@ -2423,8 +2538,8 @@ class User {
                                'user_real_name' => $this->mRealName,
                                'user_email' => $this->mEmail,
                                'user_email_authenticated' => $dbw->timestampOrNull( $this->mEmailAuthenticated ),
-                               'user_options' => $this->encodeOptions(),
-                               'user_touched' => $dbw->timestamp($this->mTouched),
+                               'user_options' => '',
+                               'user_touched' => $dbw->timestamp( $this->mTouched ),
                                'user_token' => $this->mToken,
                                'user_email_token' => $this->mEmailToken,
                                'user_email_token_expires' => $dbw->timestampOrNull( $this->mEmailTokenExpires ),
@@ -2432,6 +2547,9 @@ class User {
                                'user_id' => $this->mId
                        ), __METHOD__
                );
+
+               $this->saveOptions();
+
                wfRunHooks( 'UserSaveSettings', array( $this ) );
                $this->clearSharedCache();
                $this->getUserPage()->invalidateCache();
@@ -2472,7 +2590,7 @@ class User {
                $user = new User;
                $user->load();
                if ( isset( $params['options'] ) ) {
-                       $user->mOptions = $params['options'] + $user->mOptions;
+                       $user->mOptions = $params['options'] + (array)$user->mOptions;
                        unset( $params['options'] );
                }
                $dbw = wfGetDB( DB_MASTER );
@@ -2486,7 +2604,7 @@ class User {
                        'user_email' => $user->mEmail,
                        'user_email_authenticated' => $dbw->timestampOrNull( $user->mEmailAuthenticated ),
                        'user_real_name' => $user->mRealName,
-                       'user_options' => $user->encodeOptions(),
+                       'user_options' => '',
                        'user_token' => $user->mToken,
                        'user_registration' => $dbw->timestamp( $user->mRegistration ),
                        'user_editcount' => 0,
@@ -2520,7 +2638,7 @@ class User {
                                'user_email' => $this->mEmail,
                                'user_email_authenticated' => $dbw->timestampOrNull( $this->mEmailAuthenticated ),
                                'user_real_name' => $this->mRealName,
-                               'user_options' => $this->encodeOptions(),
+                               'user_options' => '',
                                'user_token' => $this->mToken,
                                'user_registration' => $dbw->timestamp( $this->mRegistration ),
                                'user_editcount' => 0,
@@ -2530,6 +2648,8 @@ class User {
 
                // Clear instance cache other than user table data, which is already accurate
                $this->clearInstanceCache();
+
+               $this->saveOptions();
        }
 
        /**
@@ -2537,7 +2657,7 @@ class User {
         * they've successfully logged in from.
         */
        function spreadBlock() {
-               wfDebug( __METHOD__."()\n" );
+               wfDebug( __METHOD__ . "()\n" );
                $this->load();
                if ( $this->mId == 0 ) {
                        return;
@@ -2548,15 +2668,14 @@ class User {
                        return;
                }
 
-               $userblock->doAutoblock( wfGetIp() );
-
+               $userblock->doAutoblock( wfGetIP() );
        }
 
        /**
         * Generate a string which will be different for any combination of
         * user options which would produce different parser output.
         * This will be used as part of the hash key for the parser cache,
-        * so users will the same options can share the same cached data
+        * so users with the same options can share the same cached data
         * safely.
         *
         * Extensions which require it should install 'PageRenderingHash' hook,
@@ -2579,7 +2698,7 @@ class User {
                if ( $wgUseDynamicDates ) {
                        $confstr .= '!' . $this->getDatePreference();
                }
-               $confstr .= '!' . ($this->getOption( 'numberheadings' ) ? '1' : '');
+               $confstr .= '!' . ( $this->getOption( 'numberheadings' ) ? '1' : '' );
                $confstr .= '!' . $wgLang->getCode();
                $confstr .= '!' . $this->getOption( 'thumbsize' );
                // add in language specific options, if any
@@ -2674,32 +2793,6 @@ class User {
        function isNewbie() {
                return !$this->isAllowed( 'autoconfirmed' );
        }
-       
-       /**
-        * Is the user active? We check to see if they've made at least
-        * X number of edits in the last Y days.
-        * 
-        * @return \bool True if the user is active, false if not.
-        */
-       public function isActiveEditor() {
-               global $wgActiveUserEditCount, $wgActiveUserDays;
-               $dbr = wfGetDB( DB_SLAVE );
-               
-               // Stolen without shame from RC
-               $cutoff_unixtime = time() - ( $wgActiveUserDays * 86400 );
-               $cutoff_unixtime = $cutoff_unixtime - ( $cutoff_unixtime % 86400 );
-               $oldTime = $dbr->addQuotes( $dbr->timestamp( $cutoff_unixtime ) );
-               
-               $res = $dbr->select( 'revision', '1',
-                               array( 'rev_user_text' => $this->getName(), "rev_timestamp > $oldTime"),
-                               __METHOD__,
-                               array('LIMIT' => $wgActiveUserEditCount ) );
-               
-               $count = $dbr->numRows($res);
-               $dbr->freeResult($res);
-
-               return $count == $wgActiveUserEditCount;
-       }
 
        /**
         * Check to see if the given clear-text password is one of the accepted passwords
@@ -2838,14 +2931,16 @@ class User {
                $url = $this->confirmationTokenUrl( $token );
                $invalidateURL = $this->invalidationTokenUrl( $token );
                $this->saveSettings();
-               
+
                return $this->sendMail( wfMsg( 'confirmemail_subject' ),
                        wfMsg( 'confirmemail_body',
                                wfGetIP(),
                                $this->getName(),
                                $url,
                                $wgLang->timeanddate( $expiration, false ),
-                               $invalidateURL ) );
+                               $invalidateURL,
+                               $wgLang->date( $expiration, false ),
+                               $wgLang->time( $expiration, false ) ) );
        }
 
        /**
@@ -2901,6 +2996,7 @@ class User {
        function confirmationTokenUrl( $token ) {
                return $this->getTokenUrl( 'ConfirmEmail', $token );
        }
+
        /**
         * Return a URL the user can use to invalidate their email address.
         * @param $token \string Accepts the email confirmation token
@@ -2910,7 +3006,7 @@ class User {
        function invalidationTokenUrl( $token ) {
                return $this->getTokenUrl( 'Invalidateemail', $token );
        }
-       
+
        /**
         * Internal function to format the e-mail validation/invalidation URLs.
         * This uses $wgArticlePath directly as a quickie hack to use the
@@ -2941,6 +3037,7 @@ class User {
         */
        function confirmEmail() {
                $this->setEmailAuthenticationTimestamp( wfTimestampNow() );
+               wfRunHooks( 'ConfirmEmailComplete', array( $this ) );
                return true;
        }
 
@@ -2955,6 +3052,7 @@ class User {
                $this->mEmailToken = null;
                $this->mEmailTokenExpires = null;
                $this->setEmailAuthenticationTimestamp( null );
+               wfRunHooks( 'InvalidateEmailComplete', array( $this ) );
                return true;
        }
 
@@ -2975,7 +3073,7 @@ class User {
         */
        function canSendEmail() {
                global $wgEnableEmail, $wgEnableUserEmail;
-               if( !$wgEnableEmail || !$wgEnableUserEmail ) {
+               if( !$wgEnableEmail || !$wgEnableUserEmail || !$this->isAllowed( 'sendemail' ) ) {
                        return false;
                }
                $canSend = $this->isEmailConfirmed();
@@ -3042,7 +3140,7 @@ class User {
                        ? $this->mRegistration
                        : false;
        }
-       
+
        /**
         * Get the timestamp of the first edit
         *
@@ -3059,7 +3157,7 @@ class User {
                );
                if( !$time ) return false; // no edits
                return wfTimestamp( TS_MW, $time );
-       }       
+       }
 
        /**
         * Get the permissions associated with a given list of groups
@@ -3068,8 +3166,9 @@ class User {
         * @return \type{\arrayof{\string}} List of permission key names for given groups combined
         */
        static function getGroupPermissions( $groups ) {
-               global $wgGroupPermissions;
+               global $wgGroupPermissions, $wgRevokePermissions;
                $rights = array();
+               // grant every granted permission first
                foreach( $groups as $group ) {
                        if( isset( $wgGroupPermissions[$group] ) ) {
                                $rights = array_merge( $rights,
@@ -3077,12 +3176,19 @@ class User {
                                        array_keys( array_filter( $wgGroupPermissions[$group] ) ) );
                        }
                }
-               return array_unique($rights);
+               // now revoke the revoked permissions
+               foreach( $groups as $group ) {
+                       if( isset( $wgRevokePermissions[$group] ) ) {
+                               $rights = array_diff( $rights,
+                                       array_keys( array_filter( $wgRevokePermissions[$group] ) ) );
+                       }
+               }
+               return array_unique( $rights );
        }
-       
+
        /**
         * Get all the groups who have a given permission
-        * 
+        *
         * @param $role \string Role to check
         * @return \type{\arrayof{\string}} List of internal group names with the given permission
         */
@@ -3136,9 +3242,9 @@ class User {
         * @return \type{\arrayof{\string}} Array of internal group names
         */
        static function getAllGroups() {
-               global $wgGroupPermissions;
+               global $wgGroupPermissions, $wgRevokePermissions;
                return array_diff(
-                       array_keys( $wgGroupPermissions ),
+                       array_merge( array_keys( $wgGroupPermissions ), array_keys( $wgRevokePermissions ) ),
                        self::getImplicitGroups()
                );
        }
@@ -3190,7 +3296,7 @@ class User {
        }
 
        /**
-        * Create a link to the group in HTML, if available; 
+        * Create a link to the group in HTML, if available;
         * else return the group name.
         *
         * @param $group \string Internal name of the group
@@ -3205,14 +3311,14 @@ class User {
                if( $title ) {
                        global $wgUser;
                        $sk = $wgUser->getSkin();
-                       return $sk->makeLinkObj( $title, htmlspecialchars( $text ) );
+                       return $sk->link( $title, htmlspecialchars( $text ) );
                } else {
                        return $text;
                }
        }
 
        /**
-        * Create a link to the group in Wikitext, if available; 
+        * Create a link to the group in Wikitext, if available;
         * else return the group name.
         *
         * @param $group \string Internal name of the group
@@ -3232,6 +3338,115 @@ class User {
                }
        }
 
+       /**
+        * Returns an array of the groups that a particular group can add/remove.
+        *
+        * @param $group String: the group to check for whether it can add/remove
+        * @return Array array( 'add' => array( addablegroups ),
+        *  'remove' => array( removablegroups ),
+        *  'add-self' => array( addablegroups to self),
+        *  'remove-self' => array( removable groups from self) )
+        */
+       static function changeableByGroup( $group ) {
+               global $wgAddGroups, $wgRemoveGroups, $wgGroupsAddToSelf, $wgGroupsRemoveFromSelf;
+
+               $groups = array( 'add' => array(), 'remove' => array(), 'add-self' => array(), 'remove-self' => array() );
+               if( empty( $wgAddGroups[$group] ) ) {
+                       // Don't add anything to $groups
+               } elseif( $wgAddGroups[$group] === true ) {
+                       // You get everything
+                       $groups['add'] = self::getAllGroups();
+               } elseif( is_array( $wgAddGroups[$group] ) ) {
+                       $groups['add'] = $wgAddGroups[$group];
+               }
+
+               // Same thing for remove
+               if( empty( $wgRemoveGroups[$group] ) ) {
+               } elseif( $wgRemoveGroups[$group] === true ) {
+                       $groups['remove'] = self::getAllGroups();
+               } elseif( is_array( $wgRemoveGroups[$group] ) ) {
+                       $groups['remove'] = $wgRemoveGroups[$group];
+               }
+
+               // Re-map numeric keys of AddToSelf/RemoveFromSelf to the 'user' key for backwards compatibility
+               if( empty( $wgGroupsAddToSelf['user']) || $wgGroupsAddToSelf['user'] !== true ) {
+                       foreach( $wgGroupsAddToSelf as $key => $value ) {
+                               if( is_int( $key ) ) {
+                                       $wgGroupsAddToSelf['user'][] = $value;
+                               }
+                       }
+               }
+
+               if( empty( $wgGroupsRemoveFromSelf['user']) || $wgGroupsRemoveFromSelf['user'] !== true ) {
+                       foreach( $wgGroupsRemoveFromSelf as $key => $value ) {
+                               if( is_int( $key ) ) {
+                                       $wgGroupsRemoveFromSelf['user'][] = $value;
+                               }
+                       }
+               }
+
+               // Now figure out what groups the user can add to him/herself
+               if( empty( $wgGroupsAddToSelf[$group] ) ) {
+               } elseif( $wgGroupsAddToSelf[$group] === true ) {
+                       // No idea WHY this would be used, but it's there
+                       $groups['add-self'] = User::getAllGroups();
+               } elseif( is_array( $wgGroupsAddToSelf[$group] ) ) {
+                       $groups['add-self'] = $wgGroupsAddToSelf[$group];
+               }
+
+               if( empty( $wgGroupsRemoveFromSelf[$group] ) ) {
+               } elseif( $wgGroupsRemoveFromSelf[$group] === true ) {
+                       $groups['remove-self'] = User::getAllGroups();
+               } elseif( is_array( $wgGroupsRemoveFromSelf[$group] ) ) {
+                       $groups['remove-self'] = $wgGroupsRemoveFromSelf[$group];
+               }
+
+               return $groups;
+       }
+
+       /**
+        * Returns an array of groups that this user can add and remove
+        * @return Array array( 'add' => array( addablegroups ),
+        *  'remove' => array( removablegroups ),
+        *  'add-self' => array( addablegroups to self),
+        *  'remove-self' => array( removable groups from self) )
+        */
+       function changeableGroups() {
+               if( $this->isAllowed( 'userrights' ) ) {
+                       // This group gives the right to modify everything (reverse-
+                       // compatibility with old "userrights lets you change
+                       // everything")
+                       // Using array_merge to make the groups reindexed
+                       $all = array_merge( User::getAllGroups() );
+                       return array(
+                               'add' => $all,
+                               'remove' => $all,
+                               'add-self' => array(),
+                               'remove-self' => array()
+                       );
+               }
+
+               // Okay, it's not so simple, we will have to go through the arrays
+               $groups = array(
+                       'add' => array(),
+                       'remove' => array(),
+                       'add-self' => array(),
+                       'remove-self' => array()
+               );
+               $addergroups = $this->getEffectiveGroups();
+
+               foreach( $addergroups as $addergroup ) {
+                       $groups = array_merge_recursive(
+                               $groups, $this->changeableByGroup( $addergroup )
+                       );
+                       $groups['add']    = array_unique( $groups['add'] );
+                       $groups['remove'] = array_unique( $groups['remove'] );
+                       $groups['add-self'] = array_unique( $groups['add-self'] );
+                       $groups['remove-self'] = array_unique( $groups['remove-self'] );
+               }
+               return $groups;
+       }
+
        /**
         * Increment the user's edit-count field.
         * Will have no effect for anonymous users.
@@ -3275,7 +3490,7 @@ class User {
                // edit count in user cache too
                $this->invalidateCache();
        }
-       
+
        /**
         * Get the description of a given right
         *
@@ -3312,7 +3527,7 @@ class User {
         * Make a new-style password hash
         *
         * @param $password \string Plain-text password
-        * @param $salt \string Optional salt, may be random or the user ID. 
+        * @param $salt \string Optional salt, may be random or the user ID.
         *                     If unspecified or false, will generate one automatically
         * @return \string Password hash
         */
@@ -3323,7 +3538,7 @@ class User {
                if( !wfRunHooks( 'UserCryptPassword', array( &$password, &$salt, &$wgPasswordSalt, &$hash ) ) ) {
                        return $hash;
                }
-               
+
                if( $wgPasswordSalt ) {
                        if ( $salt === false ) {
                                $salt = substr( wfGenerateToken(), 0, 8 );
@@ -3346,12 +3561,12 @@ class User {
        static function comparePasswords( $hash, $password, $userId = false ) {
                $m = false;
                $type = substr( $hash, 0, 3 );
-               
+
                $result = false;
                if( !wfRunHooks( 'UserComparePasswords', array( &$hash, &$password, &$userId, &$result ) ) ) {
                        return $result;
                }
-               
+
                if ( $type == ':A:' ) {
                        # Unsalted
                        return md5( $password ) === substr( $hash, 3 );
@@ -3364,26 +3579,33 @@ class User {
                        return self::oldCrypt( $password, $userId ) === $hash;
                }
        }
-       
+
        /**
         * Add a newuser log entry for this user
         * @param $byEmail Boolean: account made by email?
         */
        public function addNewUserLogEntry( $byEmail = false ) {
-               global $wgUser, $wgContLang, $wgNewUserLog;
-               if( empty($wgNewUserLog) ) {
+               global $wgUser, $wgNewUserLog;
+               if( empty( $wgNewUserLog ) ) {
                        return true; // disabled
                }
-               $talk = $wgContLang->getFormattedNsText( NS_TALK );
+
                if( $this->getName() == $wgUser->getName() ) {
                        $action = 'create';
                        $message = '';
                } else {
                        $action = 'create2';
-                       $message = $byEmail ? wfMsgForContent( 'newuserlog-byemail' ) : '';
+                       $message = $byEmail
+                               ? wfMsgForContent( 'newuserlog-byemail' )
+                               : '';
                }
                $log = new LogPage( 'newusers' );
-               $log->addEntry( $action, $this->getUserPage(), $message, array( $this->getId() ) );
+               $log->addEntry(
+                       $action,
+                       $this->getUserPage(),
+                       $message,
+                       array( $this->getId() )
+               );
                return true;
        }
 
@@ -3393,7 +3615,7 @@ class User {
         */
        public function addNewUserLogEntryAutoCreate() {
                global $wgNewUserLog;
-               if( empty($wgNewUserLog) ) {
+               if( empty( $wgNewUserLog ) ) {
                        return true; // disabled
                }
                $log = new LogPage( 'newusers', false );
@@ -3401,4 +3623,131 @@ class User {
                return true;
        }
 
+       protected function loadOptions() {
+               $this->load();
+               if ( $this->mOptionsLoaded || !$this->getId() )
+                       return;
+
+               $this->mOptions = self::getDefaultOptions();
+
+               // Maybe load from the object
+               if ( !is_null( $this->mOptionOverrides ) ) {
+                       wfDebug( "Loading options for user " . $this->getId() . " from override cache.\n" );
+                       foreach( $this->mOptionOverrides as $key => $value ) {
+                               $this->mOptions[$key] = $value;
+                       }
+               } else {
+                       wfDebug( "Loading options for user " . $this->getId() . " from database.\n" );
+                       // Load from database
+                       $dbr = wfGetDB( DB_SLAVE );
+
+                       $res = $dbr->select(
+                               'user_properties',
+                               '*',
+                               array( 'up_user' => $this->getId() ),
+                               __METHOD__
+                       );
+
+                       while( $row = $dbr->fetchObject( $res ) ) {
+                               $this->mOptionOverrides[$row->up_property] = $row->up_value;
+                               $this->mOptions[$row->up_property] = $row->up_value;
+                       }
+               }
+
+               $this->mOptionsLoaded = true;
+
+               wfRunHooks( 'UserLoadOptions', array( $this, &$this->mOptions ) );
+       }
+
+       protected function saveOptions() {
+               global $wgAllowPrefChange;
+
+               $extuser = ExternalUser::newFromUser( $this );
+
+               $this->loadOptions();
+               $dbw = wfGetDB( DB_MASTER );
+
+               $insert_rows = array();
+
+               $saveOptions = $this->mOptions;
+
+               // Allow hooks to abort, for instance to save to a global profile.
+               // Reset options to default state before saving.
+               if( !wfRunHooks( 'UserSaveOptions', array( $this, &$saveOptions ) ) )
+                       return;
+
+               foreach( $saveOptions as $key => $value ) {
+                       # Don't bother storing default values
+                       if ( ( is_null( self::getDefaultOption( $key ) ) &&
+                                       !( $value === false || is_null($value) ) ) ||
+                                       $value != self::getDefaultOption( $key ) ) {
+                               $insert_rows[] = array(
+                                               'up_user' => $this->getId(),
+                                               'up_property' => $key,
+                                               'up_value' => $value,
+                                       );
+                       }
+                       if ( $extuser && isset( $wgAllowPrefChange[$key] ) ) {
+                               switch ( $wgAllowPrefChange[$key] ) {
+                                       case 'local':
+                                       case 'message':
+                                               break;
+                                       case 'semiglobal':
+                                       case 'global':
+                                               $extuser->setPref( $key, $value );
+                               }
+                       }
+               }
+
+               $dbw->begin();
+               $dbw->delete( 'user_properties', array( 'up_user' => $this->getId() ), __METHOD__ );
+               $dbw->insert( 'user_properties', $insert_rows, __METHOD__ );
+               $dbw->commit();
+       }
+
+       /**
+        * Provide an array of HTML5 attributes to put on an input element
+        * intended for the user to enter a new password.  This may include
+        * required, title, and/or pattern, depending on $wgMinimalPasswordLength.
+        *
+        * Do *not* use this when asking the user to enter his current password!
+        * Regardless of configuration, users may have invalid passwords for whatever
+        * reason (e.g., they were set before requirements were tightened up).
+        * Only use it when asking for a new password, like on account creation or
+        * ResetPass.
+        *
+        * Obviously, you still need to do server-side checking.
+        *
+        * @return array Array of HTML attributes suitable for feeding to
+        *   Html::element(), directly or indirectly.  (Don't feed to Xml::*()!
+        *   That will potentially output invalid XHTML 1.0 Transitional, and will
+        *   get confused by the boolean attribute syntax used.)
+        */
+       public static function passwordChangeInputAttribs() {
+               global $wgMinimalPasswordLength;
+
+               if ( $wgMinimalPasswordLength == 0 ) {
+                       return array();
+               }
+
+               # Note that the pattern requirement will always be satisfied if the
+               # input is empty, so we need required in all cases.
+               $ret = array( 'required' );
+
+               # We can't actually do this right now, because Opera 9.6 will print out
+               # the entered password visibly in its error message!  When other
+               # browsers add support for this attribute, or Opera fixes its support,
+               # we can add support with a version check to avoid doing this on Opera
+               # versions where it will be a problem.  Reported to Opera as
+               # DSK-262266, but they don't have a public bug tracker for us to follow.
+               /*
+               if ( $wgMinimalPasswordLength > 1 ) {
+                       $ret['pattern'] = '.{' . intval( $wgMinimalPasswordLength ) . ',}';
+                       $ret['title'] = wfMsgExt( 'passwordtooshort', 'parsemag',
+                               $wgMinimalPasswordLength );
+               }
+               */
+
+               return $ret;
+       }
 }