use Database::timestamp() for cutoff
[lhc/web/wiklou.git] / includes / Article.php
index 5bbc6d2..361b9d4 100644 (file)
@@ -7,7 +7,11 @@
 # Note: edit user interface and cache support functions have been
 # moved to separate EditPage and CacheManager classes.
 
-require_once( 'CacheManager.php' );
+require_once ( 'CacheManager.php' );
+include_once ( 'SpecialValidate.php' ) ;
+
+$wgArticleCurContentFields = false;
+$wgArticleOldContentFields = false;
 
 class Article {
        /* private */ var $mContent, $mContentLoaded;
@@ -16,12 +20,12 @@ class Article {
        /* private */ var $mMinorEdit, $mRedirectedFrom;
        /* private */ var $mTouched, $mFileCache, $mTitle;
        /* private */ var $mId, $mTable;
-       
+
        function Article( &$title ) {
                $this->mTitle =& $title;
                $this->clear();
        }
-       
+
        /* private */ function clear()
        {
                $this->mContentLoaded = false;
@@ -62,7 +66,7 @@ class Article {
                }
                return $text;
        }
-       
+
        /* static */ function compressRevisionText( &$text ) {
                global $wgCompressRevisions;
                if( !$wgCompressRevisions ) {
@@ -75,7 +79,7 @@ class Article {
                $text = gzdeflate( $text );
                return 'gzip';
        }
-       
+
        # Returns the text associated with a "link" type old table row
        /* static */ function followLink( $link ) {
                # Split the link into fields and values
@@ -119,7 +123,7 @@ class Article {
                global $wgLoadBalancer;
                $fname = 'fetchFromLocation';
                wfProfileIn( $fname );
-               
+
                $p = strpos( $location, ':' );
                if ( $p === false ) {
                        wfProfileOut( $fname );
@@ -132,7 +136,7 @@ class Article {
                        case 'mysql':
                                # MySQL locations are specified by mysql://<machineID>/<dbname>/<tblname>/<index>
                                # Machine ID 0 is the current connection
-                               if ( preg_match( '/^mysql:\/\/(\d+)\/([A-Za-z_]+)\/([A-Za-z_]+)\/([A-Za-z_]+)$/', 
+                               if ( preg_match( '/^mysql:\/\/(\d+)\/([A-Za-z_]+)\/([A-Za-z_]+)\/([A-Za-z_]+)$/',
                                  $location, $matches ) ) {
                                        $machineID = $matches[1];
                                        $dbName = $matches[2];
@@ -140,20 +144,20 @@ class Article {
                                        $index = $matches[4];
                                        if ( $machineID == 0 ) {
                                                # Current connection
-                                               $db =& wfGetDB();
+                                               $db =& wfGetDB( DB_SLAVE );
                                        } else {
                                                # Alternate connection
                                                $db =& $wgLoadBalancer->getConnection( $machineID );
-                                               
+
                                                if ( array_key_exists( $machineId, $wgKnownMysqlServers ) ) {
                                                        # Try to open, return false on failure
                                                        $params = $wgKnownDBServers[$machineId];
-                                                       $db = Database::newFromParams( $params['server'], $params['user'], $params['password'], 
-                                                               $dbName, 1, false, true, true );
+                                                       $db = Database::newFromParams( $params['server'], $params['user'], $params['password'],
+                                                               $dbName, 1, DBO_IGNORE );
                                                }
                                        }
                                        if ( $db->isOpen() ) {
-                                               $index = wfStrencode( $index );
+                                               $index = $db->strencode( $index );
                                                $res = $db->query( "SELECT blob_data FROM $dbName.$tblName WHERE blob_index='$index'", $fname );
                                                $row = $db->fetchObject( $res );
                                                $text = $row->text_data;
@@ -214,17 +218,14 @@ class Article {
                        return wfMsg( 'noarticletext' );
                } else {
                        $this->loadContent( $noredir );
-
-                       if(
-                               # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
-                               ( $this->mTitle->getNamespace() == Namespace::getTalk( Namespace::getUser()) ) &&
-                                 preg_match('/^\d{1,3}\.\d{1,3}.\d{1,3}\.\d{1,3}$/',$this->mTitle->getText()) &&
-                                 $action=='view'
-                               )
-                               {
+                       # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
+                       if ( $this->mTitle->getNamespace() == NS_USER_TALK &&
+                         preg_match('/^\d{1,3}\.\d{1,3}.\d{1,3}\.\d{1,3}$/',$this->mTitle->getText()) &&
+                         $action=='view'
+                       ) {
                                wfProfileOut( $fname );
-                               return $this->mContent . "\n" .wfMsg('anontalkpagetext'); }
-                       else {
+                               return $this->mContent . "\n" .wfMsg('anontalkpagetext');
+                       else {
                                if($action=='edit') {
                                        if($section!='') {
                                                if($section=='new') {
@@ -244,15 +245,15 @@ class Article {
                        }
                }
        }
-       
+
        # This function returns the text of a section, specified by a number ($section).
-       # A section is text under a heading like == Heading == or <h1>Heading</h1>, or 
+       # A section is text under a heading like == Heading == or <h1>Heading</h1>, or
        # the first section before any such heading (section 0).
        #
        # If a section contains subsections, these are also returned.
        #
        function getSection($text,$section)  {
-               
+
                # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
                # comments to be stripped as well)
                $striparray=array();
@@ -273,23 +274,23 @@ class Article {
                        $headline=$secs[$section*2-1];
                        preg_match( '/^(=+).*?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>/mi',$headline,$matches);
                        $hlevel=$matches[1];
-                       
+
                        # translate wiki heading into level
                        if(strpos($hlevel,'=')!==false) {
-                               $hlevel=strlen($hlevel);                        
+                               $hlevel=strlen($hlevel);
                        }
-                       
+
                        $rv=$headline. $secs[$section*2];
                        $count=$section+1;
-                       
+
                        $break=false;
                        while(!empty($secs[$count*2-1]) && !$break) {
-                       
+
                                $subheadline=$secs[$count*2-1];
                                preg_match( '/^(=+).*?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>/mi',$subheadline,$matches);
                                $subhlevel=$matches[1];
                                if(strpos($subhlevel,'=')!==false) {
-                                       $subhlevel=strlen($subhlevel);                                          
+                                       $subhlevel=strlen($subhlevel);
                                }
                                if($subhlevel > $hlevel) {
                                        $rv.=$subheadline.$secs[$count*2];
@@ -298,7 +299,7 @@ class Article {
                                        $break=true;
                                }
                                $count++;
-                                               
+
                        }
                }
                # reinsert stripped tags
@@ -308,79 +309,88 @@ class Article {
                return $rv;
 
        }
-       
+
+       # Return an array of the columns of the "cur"-table
+       function &getCurContentFields() {
+               global $wgArticleCurContentFields;
+               if ( !$wgArticleCurContentFields ) {
+                       $wgArticleCurContentFields = array( 'cur_text','cur_timestamp','cur_user', 'cur_user_text',
+                         'cur_comment','cur_counter','cur_restrictions','cur_touched' );
+               }
+               return $wgArticleCurContentFields;
+       }
+
+       # Return an array of the columns of the "old"-table
+       function &getOldContentFields() {
+               global $wgArticleOldContentFields;
+               if ( !$wgArticleOldContentFields ) {
+                       $wgArticleOldContentFields = array( 'old_namespace','old_title','old_text','old_timestamp',
+                         'old_user','old_user_text','old_comment','old_flags' );
+               }
+               return $wgArticleOldContentFields;
+       }
 
        # Load the revision (including cur_text) into this object
        function loadContent( $noredir = false )
        {
-               global $wgOut, $wgMwRedir, $wgRequest, $wgIsPg;
+               global $wgOut, $wgMwRedir, $wgRequest;
 
+               $dbr =& wfGetDB( DB_SLAVE );
                # Query variables :P
                $oldid = $wgRequest->getVal( 'oldid' );
                $redirect = $wgRequest->getVal( 'redirect' );
 
                if ( $this->mContentLoaded ) return;
                $fname = 'Article::loadContent';
-               
-               # Pre-fill content with error message so that if something       
+
+               # Pre-fill content with error message so that if something
                # fails we'll have something telling us what we intended.
 
-               $t = $this->mTitle->getPrefixedText();   
-               if ( isset( $oldid ) ) {         
-                       $oldid = IntVal( $oldid );       
+               $t = $this->mTitle->getPrefixedText();
+               if ( isset( $oldid ) ) {
+                       $oldid = IntVal( $oldid );
                        $t .= ",oldid={$oldid}";
-               }        
-               if ( isset( $redirect ) ) {      
-                       $redirect = ($redirect == 'no') ? 'no' : 'yes';          
-                       $t .= ",redirect={$redirect}";   
-               }        
+               }
+               if ( isset( $redirect ) ) {
+                       $redirect = ($redirect == 'no') ? 'no' : 'yes';
+                       $t .= ",redirect={$redirect}";
+               }
                $this->mContent = wfMsg( 'missingarticle', $t );
-       
+
                if ( ! $oldid ) {       # Retrieve current version
                        $id = $this->getID();
                        if ( 0 == $id ) return;
 
-                       $sql = 'SELECT ' .
-                         'cur_text,cur_timestamp,cur_user,cur_user_text,cur_comment,cur_counter,cur_restrictions,cur_touched ' .
-                         "FROM cur WHERE cur_id={$id}";
-                       wfDebug( "$sql\n" );
-                       $res = wfQuery( $sql, DB_READ, $fname );
-                       if ( 0 == wfNumRows( $res ) ) { 
-                               return; 
+                       $s = $dbr->getArray( 'cur', $this->getCurContentFields(), array( 'cur_id' => $id ), $fname );
+                       if ( $s === false ) {
+                               return;
                        }
 
-                       $s = wfFetchObject( $res );
                        # If we got a redirect, follow it (unless we've been told
                        # not to by either the function parameter or the query
-                       if ( ( 'no' != $redirect ) && ( false == $noredir ) &&
-                         ( $wgMwRedir->matchStart( $s->cur_text ) ) ) {
-                               if ( preg_match( '/\\[\\[([^\\]\\|]+)[\\]\\|]/',
-                                 $s->cur_text, $m ) ) {
-                                       $rt = Title::newFromText( $m[1] );
-                                       if( $rt ) {
-                                               # Gotta hand redirects to special pages differently:
-                                               # Fill the HTTP response "Location" header and ignore
-                                               # the rest of the page we're on.
-       
-                                               if ( $rt->getInterwiki() != '' ) {
-                                                       $wgOut->redirect( $rt->getFullURL() ) ;
-                                                       return;
-                                               }
-                                               if ( $rt->getNamespace() == Namespace::getSpecial() ) {
-                                                       $wgOut->redirect( $rt->getFullURL() );
-                                                       return;
-                                               }
-                                               $rid = $rt->getArticleID();
-                                               if ( 0 != $rid ) {
-                                                       $sql = 'SELECT cur_text,cur_timestamp,cur_user,cur_user_text,cur_comment,' .
-                                                         "cur_counter,cur_restrictions,cur_touched FROM cur WHERE cur_id={$rid}";
-                                                       $res = wfQuery( $sql, DB_READ, $fname );
-       
-                                                       if ( 0 != wfNumRows( $res ) ) {
-                                                               $this->mRedirectedFrom = $this->mTitle->getPrefixedText();
-                                                               $this->mTitle = $rt;
-                                                               $s = wfFetchObject( $res );
-                                                       }
+                       if ( ( 'no' != $redirect ) && ( false == $noredir ) ) {
+                               $rt = Title::newFromRedirect( $s->cur_text );
+                               if ( $rt ) {
+                                       # Gotta hand redirects to special pages differently:
+                                       # Fill the HTTP response "Location" header and ignore
+                                       # the rest of the page we're on.
+
+                                       if ( $rt->getInterwiki() != '' ) {
+                                               $wgOut->redirect( $rt->getFullURL() ) ;
+                                               return;
+                                       }
+                                       if ( $rt->getNamespace() == NS_SPECIAL ) {
+                                               $wgOut->redirect( $rt->getFullURL() );
+                                               return;
+                                       }
+                                       $rid = $rt->getArticleID();
+                                       if ( 0 != $rid ) {
+                                               $redirRow = $dbr->getArray( 'cur', $this->getCurContentFields(), array( 'cur_id' => $rid ), $fname );
+
+                                               if ( $redirRow !== false ) {
+                                                       $this->mRedirectedFrom = $this->mTitle->getPrefixedText();
+                                                       $this->mTitle = $rt;
+                                                       $s = $redirRow;
                                                }
                                        }
                                }
@@ -395,18 +405,12 @@ class Article {
                        $this->mTouched = $s->cur_touched;
                        $this->mTitle->mRestrictions = explode( ',', trim( $s->cur_restrictions ) );
                        $this->mTitle->mRestrictionsLoaded = true;
-                       wfFreeResult( $res );
                } else { # oldid set, retrieve historical version
-                       $oldtable=$wgIsPg?'"old"':'old';
-                       $sql = "SELECT old_namespace,old_title,old_text,old_timestamp,".
-                               "old_user,old_user_text,old_comment,old_flags FROM old ".
-                               "WHERE old_id={$oldid}";
-                       $res = wfQuery( $sql, DB_READ, $fname );
-                       if ( 0 == wfNumRows( $res ) ) {
+                       $s = $dbr->getArray( 'old', $this->getOldContentFields(), array( 'old_id' => $oldid ), $fname );
+                       if ( $s === false ) {
                                return;
                        }
 
-                       $s = wfFetchObject( $res );
                        if( $this->mTitle->getNamespace() != $s->old_namespace ||
                                $this->mTitle->getDBkey() != $s->old_title ) {
                                $oldTitle = Title::makeTitle( $s->old_namesapce, $s->old_title );
@@ -419,7 +423,6 @@ class Article {
                        $this->mComment = $s->old_comment;
                        $this->mCounter = 0;
                        $this->mTimestamp = $s->old_timestamp;
-                       wfFreeResult( $res );
                }
                $this->mContentLoaded = true;
                return $this->mContent;
@@ -428,48 +431,40 @@ class Article {
        # Gets the article text without using so many damn globals
        # Returns false on error
        function getContentWithoutUsingSoManyDamnGlobals( $oldid = 0, $noredir = false ) {
-               global $wgMwRedir, $wgIsPg;
+               global $wgMwRedir;
 
                if ( $this->mContentLoaded ) {
                        return $this->mContent;
                }
                $this->mContent = false;
-               
-               $fname = 'Article::loadContent';
-               
+
+               $fname = 'Article::getContentWithout';
+               $dbr =& wfGetDB( DB_SLAVE );
+
                if ( ! $oldid ) {       # Retrieve current version
                        $id = $this->getID();
                        if ( 0 == $id ) {
                                return false;
                        }
 
-                       $sql = 'SELECT ' .
-                         'cur_text,cur_timestamp,cur_user,cur_counter,cur_restrictions,cur_touched ' .
-                         "FROM cur WHERE cur_id={$id}";
-                       $res = wfQuery( $sql, DB_READ, $fname );
-                       if ( 0 == wfNumRows( $res ) ) { 
-                               return false; 
+                       $s = $dbr->getArray( 'cur', $this->getCurContentFields(), array( 'cur_id' => $id ), $fname );
+                       if ( $s === false ) {
+                               return false;
                        }
 
-                       $s = wfFetchObject( $res );
                        # If we got a redirect, follow it (unless we've been told
                        # not to by either the function parameter or the query
-                       if ( !$noredir && $wgMwRedir->matchStart( $s->cur_text ) ) {
-                               if ( preg_match( '/\\[\\[([^\\]\\|]+)[\\]\\|]/',
-                                 $s->cur_text, $m ) ) {
-                                       $rt = Title::newFromText( $m[1] );
-                                       if( $rt &&  $rt->getInterwiki() == '' && $rt->getNamespace() != Namespace::getSpecial() ) {
-                                               $rid = $rt->getArticleID();
-                                               if ( 0 != $rid ) {
-                                                       $sql = 'SELECT cur_text,cur_timestamp,cur_user,' .
-                                                         "cur_counter,cur_restrictions,cur_touched FROM cur WHERE cur_id={$rid}";
-                                                       $res = wfQuery( $sql, DB_READ, $fname );
-       
-                                                       if ( 0 != wfNumRows( $res ) ) {
-                                                               $this->mRedirectedFrom = $this->mTitle->getPrefixedText();
-                                                               $this->mTitle = $rt;
-                                                               $s = wfFetchObject( $res );
-                                                       }
+                       if ( !$noredir ) {
+                               $rt = Title::newFromRedirect( $s->cur_text );
+                               if( $rt &&  $rt->getInterwiki() == '' && $rt->getNamespace() != NS_SPECIAL ) {
+                                       $rid = $rt->getArticleID();
+                                       if ( 0 != $rid ) {
+                                               $redirRow = $dbr->getArray( 'cur', $this->getCurContentFields(), array( 'cur_id' => $rid ), $fname );
+
+                                               if ( $redirRow !== false ) {
+                                                       $this->mRedirectedFrom = $this->mTitle->getPrefixedText();
+                                                       $this->mTitle = $rt;
+                                                       $s = $redirRow;
                                                }
                                        }
                                }
@@ -477,27 +472,24 @@ class Article {
 
                        $this->mContent = $s->cur_text;
                        $this->mUser = $s->cur_user;
+                       $this->mUserText = $s->cur_user_text;
+                       $this->mComment = $s->cur_comment;
                        $this->mCounter = $s->cur_counter;
                        $this->mTimestamp = $s->cur_timestamp;
                        $this->mTouched = $s->cur_touched;
                        $this->mTitle->mRestrictions = explode( ",", trim( $s->cur_restrictions ) );
                        $this->mTitle->mRestrictionsLoaded = true;
-                       wfFreeResult( $res );
                } else { # oldid set, retrieve historical version
-                       $oldtable=$wgIsPg?'"old"':'old';
-                       $sql = "SELECT old_text,old_timestamp,old_user,old_flags FROM $oldtable " .
-                         "WHERE old_id={$oldid}";
-                       $res = wfQuery( $sql, DB_READ, $fname );
-                       if ( 0 == wfNumRows( $res ) ) { 
-                               return false; 
+                       $s = $dbr->getArray( 'old', $this->getOldContentFields(), array( 'old_id' => $oldid ) );
+                       if ( $s === false ) {
+                               return false;
                        }
-
-                       $s = wfFetchObject( $res );
                        $this->mContent = Article::getRevisionText( $s );
                        $this->mUser = $s->old_user;
+                       $this->mUserText = $s->old_user_text;
+                       $this->mComment = $s->old_comment;
                        $this->mCounter = 0;
                        $this->mTimestamp = $s->old_timestamp;
-                       wfFreeResult( $res );
                }
                $this->mContentLoaded = true;
                return $this->mContent;
@@ -515,7 +507,8 @@ class Article {
        {
                if ( -1 == $this->mCounter ) {
                        $id = $this->getID();
-                       $this->mCounter = wfGetSQL( 'cur', 'cur_counter', "cur_id={$id}" );
+                       $dbr =& wfGetDB( DB_SLAVE );
+                       $this->mCounter = $dbr->getField( 'cur', 'cur_counter', "cur_id={$id}" );
                }
                return $this->mCounter;
        }
@@ -526,7 +519,7 @@ class Article {
        function isCountable( $text )
        {
                global $wgUseCommaCount, $wgMwRedir;
-               
+
                if ( 0 != $this->mTitle->getNamespace() ) { return 0; }
                if ( $wgMwRedir->matchStart( $text ) ) { return 0; }
                $token = ($wgUseCommaCount ? ',' : '[[' );
@@ -542,13 +535,14 @@ class Article {
                global $wgOut;
                if ( -1 != $this->mUser ) return;
 
-               $sql = 'SELECT cur_user,cur_user_text,cur_timestamp,' .
-                 'cur_comment,cur_minor_edit FROM cur WHERE ' .
-                 'cur_id=' . $this->getID();
-               $res = wfQuery( $sql, DB_READ, 'Article::loadLastEdit' );
+               $fname = 'Article::loadLastEdit';
 
-               if ( wfNumRows( $res ) > 0 ) {
-                       $s = wfFetchObject( $res );
+               $dbr =& wfGetDB( DB_SLAVE );
+               $s = $dbr->getArray( 'cur',
+                 array( 'cur_user','cur_user_text','cur_timestamp', 'cur_comment','cur_minor_edit' ),
+                 array( 'cur_id' => $this->getID() ), $fname );
+
+               if ( $s !== false ) {
                        $this->mUser = $s->cur_user;
                        $this->mUserText = $s->cur_user_text;
                        $this->mTimestamp = $s->cur_timestamp;
@@ -592,49 +586,55 @@ class Article {
                 $fname = 'Article::getContributors';
 
                # XXX: this is expensive; cache this info somewhere.
-               
-               $title = $this->mTitle;
 
+               $title = $this->mTitle;
                $contribs = array();
-
-                $sql = 'SELECT old_user, old_user_text, ' .
-                       '  user_real_name, MAX(old_timestamp) as timestamp' .
-                       ' FROM old LEFT JOIN user ON old.old_user = user.user_id ' .
-                      ' WHERE old.old_namespace = ' . $title->getNamespace() .
-                       ' AND old.old_title = "' . $title->getDBkey() . '"' .
-                       ' AND old.old_user != ' . $this->getUser() . 
-                       ' GROUP BY old.old_user ' . 
-                       ' ORDER BY timestamp DESC ';
+               $dbr =& wfGetDB( DB_SLAVE );
+               $oldTable = $dbr->tableName( 'old' );
+               $userTable = $dbr->tableName( 'user' );
+               $encDBkey = $dbr->strencode( $title->getDBkey() );
+               $ns = $title->getNamespace();
+               $user = $this->getUser();
+
+               $sql = "SELECT old_user, old_user_text, user_real_name, MAX(old_timestamp) as timestamp
+                       FROM $oldTable LEFT JOIN $userTable ON old_user = user_id
+                       WHERE old_namespace = $user
+                       AND old_title = $encDBkey
+                       AND old_user != $user
+                       GROUP BY old_user
+                       ORDER BY timestamp DESC";
 
                 if ($limit > 0) {
                         $sql .= ' LIMIT '.$limit;
                 }
 
-               $res = wfQuery($sql, DB_READ, $fname);
-       
-               while ( $line = wfFetchObject( $res ) ) {
+               $res = $dbr->query($sql, $fname);
+
+               while ( $line = $dbr->fetchObject( $res ) ) {
                        $contribs[] = array($line->old_user, $line->old_user_text, $line->user_real_name);
                }
-               
-               wfFreeResult($res);
-           
+
+               $dbr->freeResult($res);
+
                return $contribs;
        }
-    
+
        # This is the default action of the script: just view the page of
        # the given title.
 
        function view()
        {
-               global $wgUser, $wgOut, $wgLang, $wgRequest;
-               global $wgLinkCache, $IP, $wgEnableParserCache;
-               
+               global $wgUser, $wgOut, $wgLang, $wgRequest, $wgMwRedir, $wgOnlySysopsCanPatrol;
+               global $wgLinkCache, $IP, $wgEnableParserCache, $wgStylePath, $wgUseRCPatrol;
+               $sk = $wgUser->getSkin();
+
                $fname = 'Article::view';
                wfProfileIn( $fname );
 
-               # Get variables from query string :P
+               # Get variables from query string
                $oldid = $wgRequest->getVal( 'oldid' );
                $diff = $wgRequest->getVal( 'diff' );
+               $rcid = $wgRequest->getVal( 'rcid' );
 
                $wgOut->setArticleFlag( true );
                $wgOut->setRobotpolicy( 'index,follow' );
@@ -644,13 +644,17 @@ class Article {
 
                if ( !is_null( $diff ) ) {
                        $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
-                       $de = new DifferenceEngine( intval($oldid), intval($diff) );
+                       $de = new DifferenceEngine( intval($oldid), intval($diff), intval($rcid) );
                        $de->showDiffPage();
                        wfProfileOut( $fname );
+                       if( $diff == 0 ) {
+                               # Run view updates for current revision only
+                               $this->viewUpdates();
+                       }
                        return;
                }
 
-               if ( !is_null( $oldid ) and $this->checkTouched() ) {
+               if ( empty( $oldid ) && $this->checkTouched() ) {
                        if( $wgOut->checkLastModified( $this->mTouched ) ){
                                return;
                        } else if ( $this->tryFileCache() ) {
@@ -660,14 +664,14 @@ class Article {
                                return;
                        }
                }
-               
+
                # Should the parser cache be used?
                if ( $wgEnableParserCache && intval($wgUser->getOption( 'stubthreshold' )) == 0 && empty( $oldid ) ) {
                        $pcache = true;
                } else {
                        $pcache = false;
                }
-               
+
                $outputDone = false;
                if ( $pcache ) {
                        if ( $wgOut->tryParserCache( $this, $wgUser ) ) {
@@ -677,14 +681,14 @@ class Article {
 
                if ( !$outputDone ) {
                        $text = $this->getContent( false ); # May change mTitle by following a redirect
-                       
+
                        # Another whitelist check in case oldid or redirects are altering the title
                        if ( !$this->mTitle->userCanRead() ) {
                                $wgOut->loginToUse();
                                $wgOut->output();
                                exit;
                        }
-                       
+
 
                        # We're looking at an old revision
 
@@ -698,29 +702,48 @@ class Article {
                                  'redirect=no' );
                                $s = wfMsg( 'redirectedfrom', $redir );
                                $wgOut->setSubtitle( $s );
-                       
-                               # Can't cache redirects                         
+
+                               # Can't cache redirects
                                $pcache = false;
                        }
 
-                       $wgLinkCache->preFill( $this->mTitle );
-
                        # wrap user css and user js in pre and don't parse
                        # XXX: use $this->mTitle->usCssJsSubpage() when php is fixed/ a workaround is found
-                       if ( 
-                               $this->mTitle->getNamespace() == Namespace::getUser() && 
+                       if (
+                               $this->mTitle->getNamespace() == NS_USER &&
                                preg_match('/\\/[\\w]+\\.(css|js)$/', $this->mTitle->getDBkey())
                        ) {
                                $wgOut->addWikiText( wfMsg('clearyourcache'));
                                $wgOut->addHTML( '<pre>'.htmlspecialchars($this->mContent)."\n</pre>" );
+                       } else if ( $rt = Title::newFromRedirect( $text ) ) {
+                               # Display redirect
+                               $imageUrl = "$wgStylePath/images/redirect.png";
+                               $targetUrl = $rt->escapeLocalURL();
+                               $titleText = htmlspecialchars( $rt->getPrefixedText() );
+                               $link = $sk->makeLinkObj( $rt );
+                               $wgOut->addHTML( "<img valign=\"center\" src=\"$imageUrl\">" .
+                                 "<span class=\"redirectText\">$link</span>" );
                        } else if ( $pcache ) {
+                               # Display content and save to parser cache
                                $wgOut->addWikiText( $text, true, $this );
                        } else {
+                               # Display content, don't attempt to save to parser cache
                                $wgOut->addWikiText( $text );
                        }
                }
                $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
-               
+
+               # If we have been passed an &rcid= parameter, we want to give the user a
+               # chance to mark this new article as patrolled.
+               if ( $wgUseRCPatrol && !is_null ( $rcid ) && $rcid != 0 && $wgUser->getID() != 0 &&
+                    ( $wgUser->isSysop() || !$wgOnlySysopsCanPatrol ) )
+               {
+                       $wgOut->addHTML( wfMsg ( 'markaspatrolledlink',
+                               $sk->makeKnownLinkObj ( $this->mTitle, wfMsg ( 'markaspatrolledtext' ),
+                                       "action=markpatrolled&rcid={$rcid}" )
+                        ) );
+               }
+
                # Add link titles as META keywords
                $wgOut->addMetaTags() ;
 
@@ -735,9 +758,9 @@ class Article {
 
        /* private */ function insertNewArticle( $text, $summary, $isminor, $watchthis )
        {
-               global $wgOut, $wgUser, $wgLinkCache, $wgMwRedir;
-               global $wgUseSquid, $wgDeferredUpdateList, $wgInternalServer, $wgIsPg, $wgIsMySQL;
-               
+               global $wgOut, $wgUser, $wgMwRedir;
+               global $wgUseSquid, $wgDeferredUpdateList, $wgInternalServer;
+
                $fname = 'Article::insertNewArticle';
 
                $this->mCountAdjustment = $this->isCountable( $text );
@@ -752,48 +775,49 @@ class Article {
                $won = wfInvertTimestamp( $now );
                wfSeedRandom();
                $rand = number_format( mt_rand() / mt_getrandmax(), 12, '.', '' );
-               
-               if ($wgIsPg) {
-                       $cur_id_column="cur_id,";
-                       $cur_id=wfGetSQL(""," nextval('cur_cur_id_seq')");
-                       $cur_id_value="{$cur_id},";
-               } else {
-                       $cur_id_column="";
-                       $cur_id="";
-                       $cur_id_value="";
-               }
+               $dbw =& wfGetDB( DB_MASTER );
+
+               $cur_id = $dbw->nextSequenceValue( 'cur_cur_id_seq' );
 
                $isminor = ( $isminor && $wgUser->getID() ) ? 1 : 0;
-               $sql = "INSERT INTO cur ({$cur_id_column}cur_namespace,cur_title,cur_text," .
-                 'cur_comment,cur_user,cur_timestamp,cur_minor_edit,cur_counter,' .
-                 'cur_restrictions,cur_user_text,cur_is_redirect,' .
-                 "cur_is_new,cur_random,cur_touched,inverse_timestamp) VALUES ({$cur_id_value}{$ns},'" . wfStrencode( $ttl ) . "', '" .
-                 wfStrencode( $text ) . "', '" .
-                 wfStrencode( $summary ) . "', '" .
-                 $wgUser->getID() . "', '{$now}', " .
-                 $isminor . ", 0, '', '" .
-                 wfStrencode( $wgUser->getName() ) . "', $redir, 1, $rand, '{$now}', '{$won}')";
-               $res = wfQuery( $sql, DB_WRITE, $fname );
-
-               $newid = $wgIsPg?$cur_id:wfInsertId();
+
+               $dbw->insertArray( 'cur', array(
+                       'cur_id' => $cur_id,
+                       'cur_namespace' => $ns,
+                       'cur_title' => $ttl,
+                       'cur_text' => $text,
+                       'cur_comment' => $summary,
+                       'cur_user' => $wgUser->getID(),
+                       'cur_timestamp' => $now,
+                       'cur_minor_edit' => $isminor,
+                       'cur_counter' => 0,
+                       'cur_restrictions' => '',
+                       'cur_user_text' => $wgUser->getName(),
+                       'cur_is_redirect' => $redir,
+                       'cur_is_new' => 1,
+                       'cur_random' => $rand,
+                       'cur_touched' => $now,
+                       'inverse_timestamp' => $won,
+               ), $fname );
+
+               $newid = $dbw->insertId();
                $this->mTitle->resetArticleID( $newid );
 
                Article::onArticleCreate( $this->mTitle );
                RecentChange::notifyNew( $now, $this->mTitle, $isminor, $wgUser, $summary );
-               
-               if ($watchthis) {               
-                       if(!$this->mTitle->userIsWatching()) $this->watch(); 
+
+               if ($watchthis) {
+                       if(!$this->mTitle->userIsWatching()) $this->watch();
                } else {
                        if ( $this->mTitle->userIsWatching() ) {
                                $this->unwatch();
                        }
                }
-               
+
                # The talk page isn't in the regular link tables, so we need to update manually:
                $talkns = $ns ^ 1; # talk -> normal; normal -> talk
-               $sql = "UPDATE cur set cur_touched='$now' WHERE cur_namespace=$talkns AND cur_title='" . wfStrencode( $ttl ) . "'";
-               wfQuery( $sql, DB_WRITE );
-               
+               $dbw->updateArray( 'cur', array( 'cur_touched' => $now ), array( 'cur_namespace' => $talkns, 'cur_title' => $ttl ), $fname );
+
                # standard deferred updates
                $this->editUpdates( $text );
 
@@ -804,7 +828,7 @@ class Article {
        /* Side effects: loads last edit */
        function getTextOfLastEditWithSectionReplacedOrAdded($section, $text, $summary = ''){
                $this->loadLastEdit();
-               $oldtext = $this->getContent( true );           
+               $oldtext = $this->getContent( true );
                if ($section != '') {
                        if($section=='new') {
                                if($summary) $subject="== {$summary} ==\n\n";
@@ -825,10 +849,10 @@ class Article {
                                $secs=preg_split('/(^=+.*?=+|^<h[1-6].*?' . '>.*?<\/h[1-6].*?' . '>)/mi',
                                  $oldtext,-1,PREG_SPLIT_DELIM_CAPTURE);
                                $secs[$section*2]=$text."\n\n"; // replace with edited
-                               
+
                                # section 0 is top (intro) section
-                               if($section!=0) { 
-                                       
+                               if($section!=0) {
+
                                        # headline of old section - we need to go through this section
                                        # to determine if there are any subsections that now need to
                                        # be erased, as the mother section has been replaced with
@@ -836,23 +860,23 @@ class Article {
                                        $headline=$secs[$section*2-1];
                                        preg_match( '/^(=+).*?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>/mi',$headline,$matches);
                                        $hlevel=$matches[1];
-                                       
+
                                        # determine headline level for wikimarkup headings
                                        if(strpos($hlevel,'=')!==false) {
-                                               $hlevel=strlen($hlevel);                        
+                                               $hlevel=strlen($hlevel);
                                        }
-                                       
+
                                        $secs[$section*2-1]=''; // erase old headline
                                        $count=$section+1;
                                        $break=false;
                                        while(!empty($secs[$count*2-1]) && !$break) {
-                       
+
                                                $subheadline=$secs[$count*2-1];
                                                preg_match(
                                                 '/^(=+).*?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>/mi',$subheadline,$matches);
                                                $subhlevel=$matches[1];
                                                if(strpos($subhlevel,'=')!==false) {
-                                                       $subhlevel=strlen($subhlevel);          
+                                                       $subhlevel=strlen($subhlevel);
                                                }
                                                if($subhlevel > $hlevel) {
                                                        // erase old subsections
@@ -863,30 +887,31 @@ class Article {
                                                        $break=true;
                                                }
                                                $count++;
-                                               
+
                                        }
-                                       
+
                                }
                                $text=join('',$secs);
                                # reinsert the stuff that we stripped out earlier
-                               $text=$parser->unstrip($text,$striparray);      
-                               $text=$parser->unstripNoWiki($text,$striparray);        
+                               $text=$parser->unstrip($text,$striparray);
+                               $text=$parser->unstripNoWiki($text,$striparray);
                        }
-                                                               
+
                }
                return $text;
        }
 
        function updateArticle( $text, $summary, $minor, $watchthis, $forceBot = false, $sectionanchor = '' )
        {
-               global $wgOut, $wgUser, $wgLinkCache;
+               global $wgOut, $wgUser;
                global $wgDBtransactions, $wgMwRedir;
                global $wgUseSquid, $wgInternalServer;
-               global $wgIsPg;
+
                $fname = 'Article::updateArticle';
+               $good = true;
 
                if ( $this->mMinorEdit ) { $me1 = 1; } else { $me1 = 0; }
-               if ( $minor && $wgUser->getID() ) { $me2 = 1; } else { $me2 = 0; }              
+               if ( $minor && $wgUser->getID() ) { $me2 = 1; } else { $me2 = 0; }
                if ( preg_match( "/^((" . $wgMwRedir->getBaseRegex() . ')[^\\n]+)/i', $text, $m ) ) {
                        $redir = 1;
                        $text = $m[1] . "\n"; # Remove all content but redirect
@@ -894,80 +919,89 @@ class Article {
                else { $redir = 0; }
 
                $text = $this->preSaveTransform( $text );
-               
+               $dbw =& wfGetDB( DB_MASTER );
+
                # Update article, but only if changed.
 
+               # It's important that we either rollback or complete, otherwise an attacker could
+               # overwrite cur entries by sending precisely timed user aborts. Random bored users
+               # could conceivably have the same effect, especially if cur is locked for long periods.
                if( $wgDBtransactions ) {
-                       $sql = 'BEGIN';
-                       wfQuery( $sql, DB_WRITE );
+                       $dbw->query( 'BEGIN', $fname );
+               } else {
+                       $userAbort = ignore_user_abort( true );
                }
+
                $oldtext = $this->getContent( true );
 
                if ( 0 != strcmp( $text, $oldtext ) ) {
                        $this->mCountAdjustment = $this->isCountable( $text )
                          - $this->isCountable( $oldtext );
-
                        $now = wfTimestampNow();
                        $won = wfInvertTimestamp( $now );
-                       $sql = "UPDATE cur SET cur_text='" . wfStrencode( $text ) .
-                         "',cur_comment='" .  wfStrencode( $summary ) .
-                         "',cur_minor_edit={$me2}, cur_user=" . $wgUser->getID() .
-                         ",cur_timestamp='{$now}',cur_user_text='" .
-                         wfStrencode( $wgUser->getName() ) .
-                         "',cur_is_redirect={$redir}, cur_is_new=0, cur_touched='{$now}', inverse_timestamp='{$won}' " .
-                         "WHERE cur_id=" . $this->getID() .
-                         " AND cur_timestamp='" . $this->getTimestamp() . "'";
-                       $res = wfQuery( $sql, DB_WRITE, $fname );
-                       
-                       if( wfAffectedRows() == 0 ) {
-                               /* Belated edit conflict! Run away!! */
-                               return false;
-                       }
 
-                       # This overwrites $oldtext if revision compression is on
-                       $flags = Article::compressRevisionText( $oldtext );
-                       
-                       $oldtable=$wgIsPg?'"old"':'old';
-                       if ($wgIsPg) {
-                               $oldtable='"old"';
-                               $old_id_column='old_id,';
-                               $old_id=wfGetSQL(""," nextval('old_old_id_seq')");
-                               $old_id_value=$old_id.',';
+                       # First update the cur row
+                       $dbw->updateArray( 'cur',
+                               array( /* SET */
+                                       'cur_text' => $text,
+                                       'cur_comment' => $summary,
+                                       'cur_minor_edit' => $me2,
+                                       'cur_user' => $wgUser->getID(),
+                                       'cur_timestamp' => $now,
+                                       'cur_user_text' => $wgUser->getName(),
+                                       'cur_is_redirect' => $redir,
+                                       'cur_is_new' => 0,
+                                       'cur_touched' => $now,
+                                       'inverse_timestamp' => $won
+                               ), array( /* WHERE */
+                                       'cur_id' => $this->getID(),
+                                       'cur_timestamp' => $this->getTimestamp()
+                               ), $fname
+                       );
+
+                       if( $dbw->affectedRows() == 0 ) {
+                               /* Belated edit conflict! Run away!! */
+                               $good = false;
                        } else {
-                               $oldtable='old';
-                               $old_id_column='';
-                               $old_id_value='';
+                               # Now insert the previous revision into old
+
+                               # This overwrites $oldtext if revision compression is on
+                               $flags = Article::compressRevisionText( $oldtext );
+
+                               $dbw->insertArray( 'old',
+                                       array(
+                                               'old_id' => $dbw->nextSequenceValue( 'old_old_id_seq' ),
+                                               'old_namespace' => $this->mTitle->getNamespace(),
+                                               'old_title' => $this->mTitle->getDBkey(),
+                                               'old_text' => $oldtext,
+                                               'old_comment' => $this->getComment(),
+                                               'old_user' => $this->getUser(),
+                                               'old_user_text' => $this->getUserText(),
+                                               'old_timestamp' => $this->getTimestamp(),
+                                               'old_minor_edit' => $me1,
+                                               'inverse_timestamp' => wfInvertTimestamp( $this->getTimestamp() ),
+                                               'old_flags' => $flags,
+                                       ), $fname
+                               );
+
+                               $oldid = $dbw->insertId();
+
+                               $bot = (int)($wgUser->isBot() || $forceBot);
+                               RecentChange::notifyEdit( $now, $this->mTitle, $me2, $wgUser, $summary,
+                                       $oldid, $this->getTimestamp(), $bot );
+                               Article::onArticleEdit( $this->mTitle );
                        }
-
-                       $sql = "INSERT INTO $oldtable ({$old_id_column}old_namespace,old_title,old_text," .
-                         'old_comment,old_user,old_user_text,old_timestamp,' .
-                         'old_minor_edit,inverse_timestamp,old_flags) VALUES (' .
-                         $old_id_value.
-                         $this->mTitle->getNamespace() . ", '" .
-                         wfStrencode( $this->mTitle->getDBkey() ) . "', '" .
-                         wfStrencode( $oldtext ) . "', '" .
-                         wfStrencode( $this->getComment() ) . "', " .
-                         $this->getUser() . ", '" .
-                         wfStrencode( $this->getUserText() ) . "', '" .
-                         $this->getTimestamp() . "', " . $me1 . ", '" .
-                         wfInvertTimestamp( $this->getTimestamp() ) . "','$flags')";
-                       $res = wfQuery( $sql, DB_WRITE, $fname );
-
-                       $oldid = $wgIsPg?$old_id:wfInsertId( $res );
-
-                       $bot = (int)($wgUser->isBot() || $forceBot);
-                       RecentChange::notifyEdit( $now, $this->mTitle, $me2, $wgUser, $summary, 
-                               $oldid, $this->getTimestamp(), $bot );
-                       Article::onArticleEdit( $this->mTitle );
                }
 
                if( $wgDBtransactions ) {
-                       $sql = 'COMMIT';
-                       wfQuery( $sql, DB_WRITE );
+                       $dbw->query( 'COMMIT', $fname );
+               } else {
+                       ignore_user_abort( $userAbort );
                }
-               
-               if ($watchthis) { 
-                       if (!$this->mTitle->userIsWatching()) $this->watch();                   
+
+               if ( $good ) {
+               if ($watchthis) {
+                       if (!$this->mTitle->userIsWatching()) $this->watch();
                } else {
                        if ( $this->mTitle->userIsWatching() ) {
                                $this->unwatch();
@@ -975,8 +1009,8 @@ class Article {
                }
                # standard deferred updates
                $this->editUpdates( $text );
-               
-               
+
+
                $urls = array();
                # Template namespace
                # Purge all articles linking here
@@ -984,12 +1018,12 @@ class Article {
                        $titles = $this->mTitle->getLinksTo();
                        Title::touchArray( $titles );
                        if ( $wgUseSquid ) {
-                               foreach ( $titles as $title ) {
-                                       $urls[] = $title->getInternalURL();
-                               }
+                                       foreach ( $titles as $title ) {
+                                               $urls[] = $title->getInternalURL();
+                                       }
                        }
                }
-       
+
                # Squid updates
                if ( $wgUseSquid ) {
                        $urls = array_merge( $urls, $this->mTitle->getSquidURLs() );
@@ -998,7 +1032,8 @@ class Article {
                }
 
                $this->showArticle( $text, wfMsg( 'updated' ), $sectionanchor );
-               return true;
+               }
+               return $good;
        }
 
        # After we've either updated or inserted the article, update
@@ -1010,12 +1045,18 @@ class Article {
                global $wgMwRedir;
 
                $wgLinkCache = new LinkCache();
+               # Select for update
+               $wgLinkCache->forUpdate( true );
 
                # Get old version of link table to allow incremental link updates
                $wgLinkCache->preFill( $this->mTitle );
                $wgLinkCache->clear();
 
-               # Now update the link cache by parsing the text 
+               # Switch on use of link cache in the skin
+               $sk =& $wgUser->getSkin();
+               $sk->postParseLinkColour( false );
+
+               # Now update the link cache by parsing the text
                $wgOut = new OutputPage();
                $wgOut->addWikiText( $text );
 
@@ -1026,8 +1067,59 @@ class Article {
                $wgOut->redirect( $this->mTitle->getFullURL( $r ).$sectionanchor );
        }
 
-       # Add this page to my watchlist
+       # Validate article
+
+       function validate ()
+       {
+               global $wgOut ;
+               $wgOut->setPagetitle( wfMsg( 'validate' ) . " : " . $this->mTitle->getPrefixedText()  );
+               $wgOut->setRobotpolicy( 'noindex,follow' );
+               if ( $this->mTitle->getNamespace() != 0 )
+                       {
+                       $wgOut->addHTML ( wfMsg ( 'val_validate_article_namespace_only' ) ) ;
+                       return ;
+                       }
+               $v = new Validation ;
+               $v->validate_form ( $this->mTitle->getDBkey() ) ;
+       }
+
+       # Mark this particular edit as patrolled
+       function markpatrolled()
+       {
+               global $wgOut, $wgRequest, $wgOnlySysopsCanPatrol, $wgUseRCPatrol;
+               $wgOut->setRobotpolicy( 'noindex,follow' );
+
+               if ( !$wgUseRCPatrol )
+               {
+                       $wgOut->errorpage( 'rcpatroldisabled', 'rcpatroldisabledtext' );
+                       return;
+               }
+               if ( $wgUser->getID() == 0 )
+               {
+                       $wgOut->loginToUse();
+                       return;
+               }
+               if ( $wgOnlySysopsCanPatrol && !$wgUser->isSysop() )
+               {
+                       $wgOut->sysopRequired();
+                       return;
+               }
+               $rcid = $wgRequest->getVal( 'rcid' );
+               if ( !is_null ( $rcid ) )
+               {
+                       RecentChange::markPatrolled( $rcid );
+                       $wgOut->setPagetitle( wfMsg( 'markedaspatrolled' ) );
+                       $wgOut->addWikiText( wfMsg( 'markedaspatrolledtext' ) );
+                       $wgOut->returnToMain( true, $this->mTitle->getPrefixedText() );
+               }
+               else
+               {
+                       $wgOut->errorpage( 'markedaspatrollederror', 'markedaspatrollederrortext' );
+               }
+       }
+
 
+       # Add this page to my watchlist
        function watch( $add = true )
        {
                global $wgUser, $wgOut, $wgLang;
@@ -1061,7 +1153,7 @@ class Article {
                $up = new UserUpdate();
                array_push( $wgDeferredUpdateList, $up );
 
-               $wgOut->returnToMain( false );
+               $wgOut->returnToMain( true, $this->mTitle->getPrefixedText() );
        }
 
        function unwatch()
@@ -1091,18 +1183,23 @@ class Article {
                $reason = $wgRequest->getText( 'wpReasonProtect' );
 
                if ( $confirm ) {
+                       $dbw =& wfGetDB( DB_MASTER );
+                       $dbw->updateArray( 'cur',
+                               array( /* SET */
+                                       'cur_touched' => wfTimestampNow(),
+                                       'cur_restrictions' => (string)$limit
+                               ), array( /* WHERE */
+                                       'cur_id' => $id
+                               ), 'Article::protect'
+                       );
 
-        $sql = "UPDATE cur SET cur_touched='" . wfTimestampNow() . "'," .
-                       "cur_restrictions='{$limit}' WHERE cur_id={$id}";
-               wfQuery( $sql, DB_WRITE, 'Article::protect' );
-
-               $log = new LogPage( wfMsg( 'protectlogpage' ), wfMsg( 'protectlogtext' ) );
-               if ( $limit === "" ) {
-                               $log->addEntry( wfMsg( 'unprotectedarticle', $this->mTitle->getPrefixedText() ), $reason );
-               } else {
-                               $log->addEntry( wfMsg( 'protectedarticle', $this->mTitle->getPrefixedText() ), $reason );
-               }
-               $wgOut->redirect( $this->mTitle->getFullURL() );
+                       $log = new LogPage( wfMsg( 'protectlogpage' ), wfMsg( 'protectlogtext' ) );
+                       if ( $limit === "" ) {
+                                       $log->addEntry( wfMsg( 'unprotectedarticle', $this->mTitle->getPrefixedText() ), $reason );
+                       } else {
+                                       $log->addEntry( wfMsg( 'protectedarticle', $this->mTitle->getPrefixedText() ), $reason );
+                       }
+                       $wgOut->redirect( $this->mTitle->getFullURL() );
                        return;
                } else {
                        $reason = htmlspecialchars( wfMsg( 'protectreason' ) );
@@ -1124,12 +1221,14 @@ class Article {
                $protcom = '';
 
                if ( $limit === '' ) {
+                       $wgOut->setPageTitle( wfMsg( 'confirmunprotect' ) );
                        $wgOut->setSubtitle( wfMsg( 'unprotectsub', $sub ) );
                        $wgOut->addWikiText( wfMsg( 'confirmunprotecttext' ) );
                        $check = htmlspecialchars( wfMsg( 'confirmunprotect' ) );
                        $protcom = htmlspecialchars( wfMsg( 'unprotectcomment' ) );
                        $formaction = $this->mTitle->escapeLocalURL( 'action=unprotect' . $par );
                } else {
+                       $wgOut->setPageTitle( wfMsg( 'confirmprotect' ) );
                        $wgOut->setSubtitle( wfMsg( 'protectsub', $sub ) );
                        $wgOut->addWikiText( wfMsg( 'confirmprotecttext' ) );
                        $check = htmlspecialchars( wfMsg( 'confirmprotect' ) );
@@ -1178,16 +1277,16 @@ class Article {
                return $this->protect( '' );
        }
 
-       # UI entry point for page deletion 
+       # UI entry point for page deletion
        function delete()
        {
-               global $wgUser, $wgOut, $wgMessageCache, $wgRequest, $wgIsPg;
+               global $wgUser, $wgOut, $wgMessageCache, $wgRequest;
                $fname = 'Article::delete';
                $confirm = $wgRequest->getBool( 'wpConfirm' ) && $wgRequest->wasPosted();
                $reason = $wgRequest->getText( 'wpReason' );
-               
+
                # This code desperately needs to be totally rewritten
-               
+
                # Check permissions
                if ( ( ! $wgUser->isSysop() ) ) {
                        $wgOut->sysopRequired();
@@ -1214,22 +1313,33 @@ class Article {
                # determine whether this page has earlier revisions
                # and insert a warning if it does
                # we select the text because it might be useful below
+               $dbr =& wfGetDB( DB_SLAVE );
                $ns = $this->mTitle->getNamespace();
                $title = $this->mTitle->getDBkey();
-               $etitle = wfStrencode( $title );
-               $oldtable=$wgIsPg?'"old"':'old';
-               $sql = "SELECT old_text,old_flags FROM $oldtable WHERE old_namespace=$ns and old_title='$etitle' ORDER BY inverse_timestamp LIMIT 1";
-               $res = wfQuery( $sql, DB_READ, $fname );
-               if( ($old=wfFetchObject($res)) && !$confirm ) {
+               $old = $dbr->getArray( 'old',
+                       array( 'old_text', 'old_flags' ),
+                       array(
+                               'old_namespace' => $ns,
+                               'old_title' => $title,
+                       ), $fname, array( 'ORDER BY' => 'inverse_timestamp' )
+               );
+
+               if( $old !== false && !$confirm ) {
                        $skin=$wgUser->getSkin();
                        $wgOut->addHTML('<b>'.wfMsg('historywarning'));
                        $wgOut->addHTML( $skin->historyLink() .'</b>');
                }
 
-               $sql="SELECT cur_text FROM cur WHERE cur_namespace=$ns and cur_title='$etitle'";
-               $res=wfQuery($sql, DB_READ, $fname);
-               if( ($s=wfFetchObject($res))) {
+               # Fetch cur_text
+               $s = $dbr->getArray( 'cur',
+                       array( 'cur_text' ),
+                       array(
+                               'cur_namespace' => $ns,
+                               'cur_title' => $title,
+                       ), $fname
+               );
 
+               if( $s !== false ) {
                        # if this is a mini-text, we can paste part of it into the deletion reason
 
                        #if this is empty, an earlier revision may contain "useful" text
@@ -1241,19 +1351,19 @@ class Article {
                                        $text = Article::getRevisionText( $old );
                                        $blanked = true;
                                }
-                               
+
                        }
-                       
-                       $length=strlen($text);                          
-                       
+
+                       $length=strlen($text);
+
                        # this should not happen, since it is not possible to store an empty, new
                        # page. Let's insert a standard text in case it does, though
-                       if($length == 0 && $reason === '') { 
+                       if($length == 0 && $reason === '') {
                                $reason = wfMsg('exblank');
                        }
-                       
+
                        if($length < 500 && $reason === '') {
-                                                                       
+
                                # comment field=255, let's grep the first 150 to have some user
                                # space left
                                $text=substr($text,0,150);
@@ -1268,27 +1378,27 @@ class Article {
                                        $reason=wfMsg('exbeforeblank') . " '".$text;
                                }
                                if($length>150) { $reason .= '...'; } # we've only pasted part of the text
-                               $reason.="'"; 
+                               $reason.="'";
                        }
                }
 
                return $this->confirmDelete( '', $reason );
        }
-       
+
        # Output deletion confirmation dialog
        function confirmDelete( $par, $reason )
        {
                global $wgOut;
 
                wfDebug( "Article::confirmDelete\n" );
-               
+
                $sub = htmlspecialchars( $this->mTitle->getPrefixedText() );
                $wgOut->setSubtitle( wfMsg( 'deletesub', $sub ) );
                $wgOut->setRobotpolicy( 'noindex,nofollow' );
                $wgOut->addWikiText( wfMsg( 'confirmdeletetext' ) );
 
                $formaction = $this->mTitle->escapeLocalURL( 'action=delete' . $par );
-               
+
                $confirm = htmlspecialchars( wfMsg( 'confirm' ) );
                $check = htmlspecialchars( wfMsg( 'confirmcheck' ) );
                $delcom = htmlspecialchars( wfMsg( 'deletecomment' ) );
@@ -1334,15 +1444,14 @@ class Article {
                $fname = 'Article::doDelete';
                wfDebug( "$fname\n" );
 
-               if ( $this->doDeleteArticle( $reason ) ) {      
+               if ( $this->doDeleteArticle( $reason ) ) {
                        $deleted = $this->mTitle->getPrefixedText();
 
                        $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
                        $wgOut->setRobotpolicy( 'noindex,nofollow' );
 
                        $sk = $wgUser->getSkin();
-                       $loglink = $sk->makeKnownLink( $wgLang->getNsText(
-                         Namespace::getWikipedia() ) .
+                       $loglink = $sk->makeKnownLink( $wgLang->getNsText( NS_WIKIPEDIA ) .
                          ':' . wfMsg( 'dellogpage' ), wfMsg( 'deletionlog' ) );
 
                        $text = wfMsg( "deletedtext", $deleted, $loglink );
@@ -1365,8 +1474,9 @@ class Article {
                $fname = 'Article::doDeleteArticle';
                wfDebug( $fname."\n" );
 
+               $dbw =& wfGetDB( DB_MASTER );
                $ns = $this->mTitle->getNamespace();
-               $t = wfStrencode( $this->mTitle->getDBkey() );
+               $t = $this->mTitle->getDBkey();
                $id = $this->mTitle->getArticleID();
 
                if ( '' == $t || $id == 0 ) {
@@ -1375,14 +1485,14 @@ class Article {
 
                $u = new SiteStatsUpdate( 0, 1, -$this->isCountable( $this->getContent( true ) ) );
                array_push( $wgDeferredUpdateList, $u );
-               
+
                $linksTo = $this->mTitle->getLinksTo();
 
                # Squid purging
                if ( $wgUseSquid ) {
-                       $urls = array(  
+                       $urls = array(
                                $this->mTitle->getInternalURL(),
-                               $this->mTitle->getInternalURL( 'history' ) 
+                               $this->mTitle->getInternalURL( 'history' )
                        );
                        foreach ( $linksTo as $linkTo ) {
                                $urls[] = $linkTo->getInternalURL();
@@ -1397,68 +1507,75 @@ class Article {
                Title::touchArray( $linksTo );
 
                # Move article and history to the "archive" table
-               $sql = 'INSERT INTO archive (ar_namespace,ar_title,ar_text,' .
-                 'ar_comment,ar_user,ar_user_text,ar_timestamp,ar_minor_edit,' .
-                 'ar_flags) SELECT cur_namespace,cur_title,cur_text,cur_comment,' .
-                 'cur_user,cur_user_text,cur_timestamp,cur_minor_edit,0 FROM cur ' .
-                 "WHERE cur_namespace={$ns} AND cur_title='{$t}'";
-               wfQuery( $sql, DB_WRITE, $fname );
-
-               $sql = 'INSERT INTO archive (ar_namespace,ar_title,ar_text,' .
-                 'ar_comment,ar_user,ar_user_text,ar_timestamp,ar_minor_edit,' .
-                 'ar_flags) SELECT old_namespace,old_title,old_text,old_comment,' .
-                 'old_user,old_user_text,old_timestamp,old_minor_edit,old_flags ' .
-                 "FROM old WHERE old_namespace={$ns} AND old_title='{$t}'";
-               wfQuery( $sql, DB_WRITE, $fname );
+               $archiveTable = $dbw->tableName( 'archive' );
+               $oldTable = $dbw->tableName( 'old' );
+               $curTable = $dbw->tableName( 'cur' );
+               $recentchangesTable = $dbw->tableName( 'recentchanges' );
+               $linksTable = $dbw->tableName( 'links' );
+               $brokenlinksTable = $dbw->tableName( 'brokenlinks' );
+
+               $dbw->insertSelect( 'archive', 'cur',
+                       array(
+                               'ar_namespace' => 'cur_namespace',
+                               'ar_title' => 'cur_title',
+                               'ar_text' => 'cur_text',
+                               'ar_comment' => 'cur_comment',
+                               'ar_user' => 'cur_user',
+                               'ar_user_text' => 'cur_user_text',
+                               'ar_timestamp' => 'cur_timestamp',
+                               'ar_minor_edit' => 'cur_minor_edit',
+                               'ar_flags' => 0,
+                       ), array(
+                               'cur_namespace' => $ns,
+                               'cur_title' => $t,
+                       ), $fname
+               );
 
-               # Now that it's safely backed up, delete it
+               $dbw->insertSelect( 'archive', 'old',
+                       array(
+                               'ar_namespace' => 'old_namespace',
+                               'ar_title' => 'old_title',
+                               'ar_text' => 'old_text',
+                               'ar_comment' => 'old_comment',
+                               'ar_user' => 'old_user',
+                               'ar_user_text' => 'old_user_text',
+                               'ar_timestamp' => 'old_timestamp',
+                               'ar_minor_edit' => 'old_minor_edit',
+                               'ar_flags' => 'old_flags'
+                       ), array(
+                               'old_namespace' => $ns,
+                               'old_title' => $t,
+                       ), $fname
+               );
 
-               $sql = "DELETE FROM cur WHERE cur_namespace={$ns} AND " .
-                 "cur_title='{$t}'";
-               wfQuery( $sql, DB_WRITE, $fname );
+               # Now that it's safely backed up, delete it
 
-               $sql = "DELETE FROM old WHERE old_namespace={$ns} AND " .
-                 "old_title='{$t}'";
-               wfQuery( $sql, DB_WRITE, $fname );
-               
-               $sql = "DELETE FROM recentchanges WHERE rc_namespace={$ns} AND " .
-                 "rc_title='{$t}'";
-                       wfQuery( $sql, DB_WRITE, $fname );
+               $dbw->delete( 'cur', array( 'cur_namespace' => $ns, 'cur_title' => $t ), $fname );
+               $dbw->delete( 'old', array( 'old_namespace' => $ns, 'old_title' => $t ), $fname );
+               $dbw->delete( 'recentchanges', array( 'rc_namespace' => $ns, 'rc_title' => $t ), $fname );
 
                # Finally, clean up the link tables
-               $t = wfStrencode( $this->mTitle->getPrefixedDBkey() );
+               $t = $this->mTitle->getPrefixedDBkey();
 
                Article::onArticleDelete( $this->mTitle );
-               
-               $sql = 'INSERT INTO brokenlinks (bl_from,bl_to) VALUES ';
-               $first = true;
 
+               # Insert broken links
+               $brokenLinks = array();
                foreach ( $linksTo as $titleObj ) {
-                       if ( ! $first ) { $sql .= ','; }
-                       $first = false;
                        # Get article ID. Efficient because it was loaded into the cache by getLinksTo().
-                       $linkID = $titleObj->getArticleID(); 
-                       $sql .= "({$linkID},'{$t}')";
-               }
-               if ( ! $first ) {
-                       wfQuery( $sql, DB_WRITE, $fname );
+                       $linkID = $titleObj->getArticleID();
+                       $brokenLinks[] = array( 'bl_from' => $linkID, 'bl_to' => $t );
                }
+               $dbw->insert( 'brokenlinks', $brokenLinks, $fname, 'IGNORE' );
 
-               $sql = "DELETE FROM links WHERE l_to={$id}";
-               wfQuery( $sql, DB_WRITE, $fname );
-
-               $sql = "DELETE FROM links WHERE l_from={$id}";
-               wfQuery( $sql, DB_WRITE, $fname );
+               # Delete live links
+               $dbw->delete( 'links', array( 'l_to' => $id ) );
+               $dbw->delete( 'links', array( 'l_from' => $id ) );
+               $dbw->delete( 'imagelinks', array( 'il_from' => $id ) );
+               $dbw->delete( 'brokenlinks', array( 'bl_from' => $id ) );
+               $dbw->delete( 'categorylinks', array( 'cl_from' => $id ) );
 
-               $sql = "DELETE FROM imagelinks WHERE il_from={$id}";
-               wfQuery( $sql, DB_WRITE, $fname );
-
-               $sql = "DELETE FROM brokenlinks WHERE bl_from={$id}";
-               wfQuery( $sql, DB_WRITE, $fname );
-               
-               $sql = "DELETE FROM categorylinks WHERE cl_from={$id}";
-               wfQuery( $sql, DB_WRITE, $fname );
-               
+               # Log the deletion
                $log = new LogPage( wfMsg( 'dellogpage' ), wfMsg( 'dellogpagetext' ) );
                $art = $this->mTitle->getPrefixedText();
                $log->addEntry( wfMsg( 'deletedarticle', $art ), $reason );
@@ -1471,7 +1588,8 @@ class Article {
 
        function rollback()
        {
-               global $wgUser, $wgLang, $wgOut, $wgRequest, $wgIsMySQL, $wgIsPg;
+               global $wgUser, $wgLang, $wgOut, $wgRequest;
+               $fname = "Article::rollback";
 
                if ( ! $wgUser->isSysop() ) {
                        $wgOut->sysopRequired();
@@ -1481,28 +1599,30 @@ class Article {
                        $wgOut->readOnlyPage( $this->getContent( true ) );
                        return;
                }
-               
+               $dbw =& wfGetDB( DB_MASTER );
+
                # Enhanced rollback, marks edits rc_bot=1
                $bot = $wgRequest->getBool( 'bot' );
-               
+
                # Replace all this user's current edits with the next one down
-               $tt = wfStrencode( $this->mTitle->getDBKey() );
+               $tt = $this->mTitle->getDBKey();
                $n = $this->mTitle->getNamespace();
-               
-               # Get the last editor
-               $sql = 'SELECT cur_id,cur_user,cur_user_text,cur_comment ' .
-                      "FROM cur WHERE cur_title='{$tt}' AND cur_namespace={$n}";
-               $res = wfQuery( $sql, DB_READ );
-               if( ($x = wfNumRows( $res )) != 1 ) {
+
+               # Get the last editor, lock table exclusively
+               $s = $dbw->getArray( 'cur',
+                       array( 'cur_id','cur_user','cur_user_text','cur_comment' ),
+                       array( 'cur_title' => $tt, 'cur_namespace' => $n ),
+                       $fname, 'FOR UPDATE'
+               );
+               if( $s === false ) {
                        # Something wrong
                        $wgOut->addHTML( wfMsg( 'notanarticle' ) );
                        return;
                }
-               $s = wfFetchObject( $res );
-               $ut = wfStrencode( $s->cur_user_text );
+               $ut = $dbw->strencode( $s->cur_user_text );
                $uid = $s->cur_user;
                $pid = $s->cur_id;
-               
+
                $from = str_replace( '_', ' ', $wgRequest->getVal( 'from' ) );
                if( $from != $s->cur_user_text ) {
                        $wgOut->setPageTitle(wfmsg('rollbackfailed'));
@@ -1517,30 +1637,33 @@ class Article {
                        }
                        return;
                }
-               
-               # Get the last edit not by this guy
 
-               $use_index=$wgIsMySQL?"USE INDEX (name_title_timestamp)":"";
-               $oldtable=$wgIsPg?'"old"':'old';
-               $sql = 'SELECT old_text,old_user,old_user_text,old_timestamp,old_flags ' .
-               "FROM $oldtable {$use_index} " .
-               "WHERE old_namespace={$n} AND old_title='{$tt}' " .
-               "AND (old_user <> {$uid} OR old_user_text <> '{$ut}') " .
-               'ORDER BY inverse_timestamp LIMIT 1';
-               $res = wfQuery( $sql, DB_READ );
-               if( wfNumRows( $res ) != 1 ) {
+               # Get the last edit not by this guy
+               $s = $dbw->getArray( 'old',
+                       array( 'old_text','old_user','old_user_text','old_timestamp','old_flags' ),
+                       array(
+                               'old_namespace' => $n,
+                               'old_title' => $tt,
+                               "old_user <> {$uid} OR old_user_text <> '{$ut}'"
+                       ), $fname, array( 'FOR UPDATE', 'USE INDEX' => 'name_title_timestamp' )
+               );
+               if( $s === false ) {
                        # Something wrong
                        $wgOut->setPageTitle(wfMsg('rollbackfailed'));
                        $wgOut->addHTML( wfMsg( 'cantrollback' ) );
                        return;
                }
-               $s = wfFetchObject( $res );
-               
+
                if ( $bot ) {
                        # Mark all reverted edits as bot
-                       $sql = 'UPDATE recentchanges SET rc_bot=1 WHERE ' .
-                               "rc_cur_id=$pid AND rc_user=$uid AND rc_timestamp > '{$s->old_timestamp}'";
-                       wfQuery( $sql, DB_WRITE, $fname );
+                       $dbw->updateArray( 'recentchanges',
+                               array( /* SET */
+                                       'rc_bot' => 1
+                               ), array( /* WHERE */
+                                       'rc_user' => $uid,
+                                       "rc_timestamp > '{$s->old_timestamp}'",
+                               ), $fname
+                       );
                }
 
                # Save it!
@@ -1552,7 +1675,7 @@ class Article {
                Article::onArticleEdit( $this->mTitle );
                $wgOut->returnToMain( false );
        }
-       
+
 
        # Do standard deferred updates after page view
 
@@ -1566,10 +1689,10 @@ class Article {
                                $u = new SiteStatsUpdate( 1, 0, 0 );
                                array_push( $wgDeferredUpdateList, $u );
                        }
-                       $u = new UserTalkUpdate( 0, $this->mTitle->getNamespace(),
-                         $this->mTitle->getDBkey() );
-                       array_push( $wgDeferredUpdateList, $u );
                }
+               $u = new UserTalkUpdate( 0, $this->mTitle->getNamespace(),
+                 $this->mTitle->getDBkey() );
+               array_push( $wgDeferredUpdateList, $u );
        }
 
        # Do standard deferred updates after page edit.
@@ -1582,14 +1705,15 @@ class Article {
 
                wfSeedRandom();
                if ( 0 == mt_rand( 0, 999 ) ) {
+                       $dbw =& wfGetDB( DB_MASTER );
                        $cutoff = wfUnix2Timestamp( time() - ( 7 * 86400 ) );
                        $sql = "DELETE FROM recentchanges WHERE rc_timestamp < '{$cutoff}'";
-                       wfQuery( $sql, DB_WRITE );
+                       $dbw->query( $sql );
                }
                $id = $this->getID();
                $title = $this->mTitle->getPrefixedDBkey();
                $shortTitle = $this->mTitle->getDBkey();
-               
+
                $adj = $this->mCountAdjustment;
 
                if ( 0 != $id ) {
@@ -1626,7 +1750,7 @@ class Article {
                global $wgParser, $wgUser;
                return $wgParser->preSaveTransform( $text, $this->mTitle, $wgUser, ParserOptions::newFromUser( $wgUser ) );
        }
-       
+
        /* Caching functions */
 
        # checkLastModified returns true if it has taken care of all
@@ -1653,7 +1777,7 @@ class Article {
                                $cache->loadFromFileCache();
                                return true;
                        } else {
-                               wfDebug( " tryFileCache() - starting buffer\n" );                       
+                               wfDebug( " tryFileCache() - starting buffer\n" );
                                ob_start( array(&$cache, 'saveToFileCache' ) );
                        }
                } else {
@@ -1664,27 +1788,30 @@ class Article {
        function isFileCacheable() {
                global $wgUser, $wgUseFileCache, $wgShowIPinHeader, $wgRequest;
                extract( $wgRequest->getValues( 'action', 'oldid', 'diff', 'redirect', 'printable' ) );
-               
+
                return $wgUseFileCache
                        and (!$wgShowIPinHeader)
                        and ($this->getID() != 0)
                        and ($wgUser->getId() == 0)
                        and (!$wgUser->getNewtalk())
-                       and ($this->mTitle->getNamespace() != Namespace::getSpecial())
-                       and ($action == 'view')
+                       and ($this->mTitle->getNamespace() != NS_SPECIAL )
+                       and (empty( $action ) || $action == 'view')
                        and (!isset($oldid))
                        and (!isset($diff))
                        and (!isset($redirect))
                        and (!isset($printable))
                        and (!$this->mRedirectedFrom);
        }
-       
+
        # Loads cur_touched and returns a value indicating if it should be used
        function checkTouched() {
+               $fname = 'Article::checkTouched';
+
                $id = $this->getID();
-               $sql = 'SELECT cur_touched,cur_is_redirect FROM cur WHERE cur_id='.$id;
-               $res = wfQuery( $sql, DB_READ, 'Article::checkTouched' );
-               if( $s = wfFetchObject( $res ) ) {
+               $dbr =& wfGetDB( DB_SLAVE );
+               $s = $dbr->getArray( 'cur', array( 'cur_touched', 'cur_is_redirect' ),
+                       array( 'cur_id' => $id ), $fname );
+               if( $s !== false ) {
                        $this->mTouched = $s->cur_touched;
                        return !$s->cur_is_redirect;
                } else {
@@ -1694,24 +1821,35 @@ class Article {
 
        # Edit an article without doing all that other stuff
        function quickEdit( $text, $comment = '', $minor = 0 ) {
-               global $wgUser, $wgMwRedir, $wgIsPg;
+               global $wgUser, $wgMwRedir;
                $fname = 'Article::quickEdit';
                wfProfileIn( $fname );
 
+               $dbw =& wfGetDB( DB_MASTER );
                $ns = $this->mTitle->getNamespace();
                $dbkey = $this->mTitle->getDBkey();
-               $encDbKey = wfStrencode( $dbkey );
+               $encDbKey = $dbw->strencode( $dbkey );
                $timestamp = wfTimestampNow();
-               
+
                # Save to history
-                $oldtable=$wgIsPg?'"old"':'old';
-               $sql = "INSERT INTO $oldtable (old_namespace,old_title,old_text,old_comment,old_user,old_user_text,old_timestamp,inverse_timestamp)
-                 SELECT cur_namespace,cur_title,cur_text,cur_comment,cur_user,cur_user_text,cur_timestamp,99999999999999-cur_timestamp
-                 FROM cur WHERE cur_namespace=$ns AND cur_title='$encDbKey'";
-               wfQuery( $sql, DB_WRITE );
-               
+               $dbw->insertSelect( 'old', 'cur',
+                       array(
+                               'old_namespace' => 'cur_namespace',
+                               'old_title' => 'cur_title',
+                               'old_text' => 'cur_text',
+                               'old_comment' => 'cur_comment',
+                               'old_user' => 'cur_user',
+                               'old_user_text' => 'cur_user_text',
+                               'old_timestamp' => 'cur_timestamp',
+                               'inverse_timestamp' => '99999999999999-cur_timestamp',
+                       ), array(
+                               'cur_namespace' => $ns,
+                               'cur_title' => $dbkey,
+                       ), $fname
+               );
+
                # Use the affected row count to determine if the article is new
-               $numRows = wfAffectedRows();
+               $numRows = $dbw->affectedRows();
 
                # Make an array of fields to be inserted
                $fields = array(
@@ -1729,14 +1867,14 @@ class Article {
                if ( $numRows ) {
                        # Update article
                        $fields['cur_is_new'] = 0;
-                       wfUpdateArray( 'cur', $fields, array( 'cur_namespace' => $ns, 'cur_title' => $dbkey ), $fname );
+                       $dbw->updateArray( 'cur', $fields, array( 'cur_namespace' => $ns, 'cur_title' => $dbkey ), $fname );
                } else {
                        # Insert new article
                        $fields['cur_is_new'] = 1;
                        $fields['cur_namespace'] = $ns;
                        $fields['cur_title'] = $dbkey;
                        $fields['cur_random'] = $rand = number_format( mt_rand() / mt_getrandmax(), 12, '.', '' );
-                       wfInsertArray( 'cur', $fields, $fname );
+                       $dbw->insertArray( 'cur', $fields, $fname );
                }
                wfProfileOut( $fname );
        }
@@ -1746,60 +1884,64 @@ class Article {
                $id = intval( $id );
                global $wgHitcounterUpdateFreq;
 
-               if( $wgHitcounterUpdateFreq <= 1 ){ // 
-                       wfQuery('UPDATE cur SET cur_counter = cur_counter + 1 ' .
-                               'WHERE cur_id = '.$id, DB_WRITE);
+               $dbw =& wfGetDB( DB_MASTER );
+               $curTable = $dbw->tableName( 'cur' );
+               $hitcounterTable = $dbw->tableName( 'hitcounter' );
+               $acchitsTable = $dbw->tableName( 'acchits' );
+
+               if( $wgHitcounterUpdateFreq <= 1 ){ //
+                       $dbw->query( "UPDATE $curTable SET cur_counter = cur_counter + 1 WHERE cur_id = $id" );
                        return;
                }
 
                # Not important enough to warrant an error page in case of failure
-               $oldignore = wfIgnoreSQLErrors( true ); 
+               $oldignore = $dbw->ignoreErrors( true );
 
-               wfQuery("INSERT INTO hitcounter (hc_id) VALUES ({$id})", DB_WRITE);
+               $dbw->query( "INSERT INTO $hitcounterTable (hc_id) VALUES ({$id})" );
 
                $checkfreq = intval( $wgHitcounterUpdateFreq/25 + 1 );
-               if( (rand() % $checkfreq != 0) or (wfLastErrno() != 0) ){
+               if( (rand() % $checkfreq != 0) or ($dbw->lastErrno() != 0) ){
                        # Most of the time (or on SQL errors), skip row count check
-                       wfIgnoreSQLErrors( $oldignore );
+                       $dbw->ignoreErrors( $oldignore );
                        return;
                }
 
-               $res = wfQuery('SELECT COUNT(*) as n FROM hitcounter', DB_WRITE);
-               $row = wfFetchObject( $res );
+               $res = $dbw->query("SELECT COUNT(*) as n FROM $hitcounterTable");
+               $row = $dbw->fetchObject( $res );
                $rown = intval( $row->n );
-               if( $rown >= $wgHitcounterUpdateFreq ){ 
+               if( $rown >= $wgHitcounterUpdateFreq ){
                        wfProfileIn( 'Article::incViewCount-collect' );
                        $old_user_abort = ignore_user_abort( true );
 
-                       wfQuery('LOCK TABLES hitcounter WRITE', DB_WRITE);
-                       wfQuery('CREATE TEMPORARY TABLE acchits TYPE=HEAP '.
-                               'SELECT hc_id,COUNT(*) AS hc_n FROM hitcounter '.
-                               'GROUP BY hc_id', DB_WRITE);
-                       wfQuery('DELETE FROM hitcounter', DB_WRITE);
-                       wfQuery('UNLOCK TABLES', DB_WRITE);
-                       wfQuery('UPDATE cur,acchits SET cur_counter=cur_counter + hc_n '.
-                               'WHERE cur_id = hc_id', DB_WRITE);
-                       wfQuery('DROP TABLE acchits', DB_WRITE);
+                       $dbw->query("LOCK TABLES $hitcounterTable WRITE");
+                       $dbw->query("CREATE TEMPORARY TABLE $acchitsTable TYPE=HEAP ".
+                               "SELECT hc_id,COUNT(*) AS hc_n FROM $hitcounterTable ".
+                               'GROUP BY hc_id');
+                       $dbw->query("DELETE FROM $hitcounterTable");
+                       $dbw->query('UNLOCK TABLES');
+                       $dbw->query("UPDATE $curTable,$acchitsTable SET cur_counter=cur_counter + hc_n ".
+                               'WHERE cur_id = hc_id');
+                       $dbw->query("DROP TABLE $acchitsTable");
 
                        ignore_user_abort( $old_user_abort );
                        wfProfileOut( 'Article::incViewCount-collect' );
                }
-               wfIgnoreSQLErrors( $oldignore );
+               $dbw->ignoreErrors( $oldignore );
        }
 
        # The onArticle*() functions are supposed to be a kind of hooks
-       # which should be called whenever any of the specified actions 
-       # are done. 
+       # which should be called whenever any of the specified actions
+       # are done.
        #
-       # This is a good place to put code to clear caches, for instance. 
+       # This is a good place to put code to clear caches, for instance.
 
-       # This is called on page move and undelete, as well as edit     
+       # This is called on page move and undelete, as well as edit
        /* static */ function onArticleCreate($title_obj){
                global $wgUseSquid, $wgDeferredUpdateList;
 
                $titles = $title_obj->getBrokenLinksTo();
-               
-               # Purge squid 
+
+               # Purge squid
                if ( $wgUseSquid ) {
                        $urls = $title_obj->getSquidURLs();
                        foreach ( $titles as $linkTitle ) {
@@ -1820,6 +1962,75 @@ class Article {
        /* static */ function onArticleEdit($title_obj){
                LinkCache::linksccClearPage( $title_obj->getArticleID() );
        }
+
+       # Info about this page
+
+       function info()
+       {
+               global $wgUser, $wgTitle, $wgOut, $wgLang, $wgAllowPageInfo;
+               $fname = 'Article::info';
+
+               if ( !$wgAllowPageInfo ) {
+                       $wgOut->errorpage( "nosuchaction", "nosuchactiontext" );
+                       return;
+               }
+
+               $dbr =& wfGetDB( DB_SLAVE );
+
+               $basenamespace = $wgTitle->getNamespace() & (~1);
+               $cur_clause = array( 'cur_title' => $wgTitle->getDBkey(), 'cur_namespace' => $basenamespace );
+               $old_clause = array( 'old_title' => $wgTitle->getDBkey(), 'old_namespace' => $basenamespace );
+               $wl_clause  = array( 'wl_title' => $wgTitle->getDBkey(), 'wl_namespace' => $basenamespace );
+               $fullTitle = $wgTitle->makeName($basenamespace, $wgTitle->getDBKey());
+               $wgOut->setPagetitle(  $fullTitle );
+               $wgOut->setSubtitle( wfMsg( "infosubtitle" ));
+
+               # first, see if the page exists at all.
+               $exists = $dbr->selectField( 'cur', 'COUNT(*)', $cur_clause, $fname );
+               if ($exists < 1) {
+                       $wgOut->addHTML( wfMsg("noarticletext") );
+               } else {
+                       $numwatchers = $dbr->selectField( 'watchlist', 'COUNT(*)', $wl_clause, $fname );
+                       $wgOut->addHTML( "<ul><li>" . wfMsg("numwatchers", $numwatchers) . "</li>" );
+                       $old = $dbr->selectField( 'old', 'COUNT(*)', $old_clause, $fname );
+                       $wgOut->addHTML( "<li>" . wfMsg("numedits", $old + 1) . "</li>");
+
+                       # to find number of distinct authors, we need to do some
+                       # funny stuff because of the cur/old table split:
+                       # - first, find the name of the 'cur' author
+                       # - then, find the number of *other* authors in 'old'
+
+                       # find 'cur' author
+                       $cur_author = $dbr->selectField( 'cur', 'cur_user_text', $cur_clause, $fname );
+
+                       # find number of 'old' authors excluding 'cur' author
+                       $authors = $dbr->selectField( 'old', 'COUNT(DISTINCT old_user_text)',
+                               $old_clause + array( 'old_user_text<>' . $dbr->addQuotes( $cur_author ) ), $fname ) + 1;
+
+                       # now for the Talk page ...
+                       $cur_clause = array( 'cur_title' => $wgTitle->getDBkey(), 'cur_namespace' => $basenamespace+1 );
+                       $old_clause = array( 'old_title' => $wgTitle->getDBkey(), 'old_namespace' => $basenamespace+1 );
+
+                       # does it exist?
+                       $exists = $dbr->selectField( 'cur', 'COUNT(*)', $cur_clause, $fname );
+
+                       # number of edits
+                       if ($exists > 0) {
+                               $old = $dbr->selectField( 'old', 'COUNT(*)', $old_clause, $fname );
+                               $wgOut->addHTML( "<li>" . wfMsg("numtalkedits", $old + 1) . "</li>");
+                       }
+                       $wgOut->addHTML( "<li>" . wfMsg("numauthors", $authors) . "</li>" );
+
+                       # number of authors
+                       if ($exists > 0) {
+                               $cur_author = $dbr->selectField( 'cur', 'cur_user_text', $cur_clause, $fname );
+                               $authors = $dbr->selectField( 'cur', 'COUNT(DISTINCT old_user_text)',
+                                       $old_clause + array( 'old_user_text<>' . $dbr->addQuotes( $cur_author ) ), $fname );
+
+                               $wgOut->addHTML( "<li>" . wfMsg("numtalkauthors", $authors) . "</li></ul>" );
+                       }
+               }
+       }
 }
 
 ?>