]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - includes/Article.php
MediaWiki 1.30.2
[autoinstallsdev/mediawiki.git] / includes / Article.php
diff --git a/includes/Article.php b/includes/Article.php
deleted file mode 100644 (file)
index 373e7de..0000000
+++ /dev/null
@@ -1,2514 +0,0 @@
-<?php
-/**
- * File for articles
- * @package MediaWiki
- */
-
-/**
- * Need the CacheManager to be loaded
- */
-require_once( 'CacheManager.php' );
-require_once( 'Revision.php' );
-
-$wgArticleCurContentFields = false;
-$wgArticleOldContentFields = false;
-
-/**
- * Class representing a MediaWiki article and history.
- *
- * See design.txt for an overview.
- * Note: edit user interface and cache support functions have been
- * moved to separate EditPage and CacheManager classes.
- *
- * @package MediaWiki
- */
-class Article {
-       /**#@+
-        * @access private
-        */
-       var $mContent, $mContentLoaded;
-       var $mUser, $mTimestamp, $mUserText;
-       var $mCounter, $mComment, $mGoodAdjustment, $mTotalAdjustment;
-       var $mMinorEdit, $mRedirectedFrom;
-       var $mTouched, $mFileCache, $mTitle;
-       var $mId, $mTable;
-       var $mForUpdate;
-       var $mOldId;
-       var $mRevIdFetched;
-       var $mRevision;
-       /**#@-*/
-
-       /**
-        * Constructor and clear the article
-        * @param mixed &$title
-        */
-       function Article( &$title ) {
-               $this->mTitle =& $title;
-               $this->clear();
-       }
-
-       /**
-        * get the title object of the article
-        * @public
-        */
-       function getTitle() {
-               return $this->mTitle;
-       }
-
-       /**
-         * Clear the object
-         * @private
-         */
-       function clear() {
-               $this->mDataLoaded    = false;
-               $this->mContentLoaded = false;
-
-               $this->mCurID = $this->mUser = $this->mCounter = -1; # Not loaded
-               $this->mRedirectedFrom = $this->mUserText =
-               $this->mTimestamp = $this->mComment = $this->mFileCache = '';
-               $this->mGoodAdjustment = $this->mTotalAdjustment = 0;
-               $this->mTouched = '19700101000000';
-               $this->mForUpdate = false;
-               $this->mIsRedirect = false;
-               $this->mRevIdFetched = 0;
-       }
-
-       /**
-        * Note that getContent/loadContent may follow redirects if
-        * not told otherwise, and so may cause a change to mTitle.
-        *
-        * @param $noredir
-        * @return Return the text of this revision
-       */
-       function getContent( $noredir ) {
-               global $wgRequest, $wgUser, $wgOut;
-
-               # Get variables from query string :P
-               $action = $wgRequest->getText( 'action', 'view' );
-               $section = $wgRequest->getText( 'section' );
-               $preload = $wgRequest->getText( 'preload' );
-
-               $fname =  'Article::getContent';
-               wfProfileIn( $fname );
-
-               if ( 0 == $this->getID() ) {
-                       if ( 'edit' == $action ) {
-                               wfProfileOut( $fname );
-
-                               # If requested, preload some text.
-                               $text=$this->getPreloadedText($preload);
-
-                               # We used to put MediaWiki:Newarticletext here if
-                               # $text was empty at this point.
-                               # This is now shown above the edit box instead.
-                               return $text;
-                       }
-                       wfProfileOut( $fname );
-                       $wgOut->setRobotpolicy( 'noindex,nofollow' );
-                       return wfMsg( 'noarticletext' );
-               } else {
-                       $this->loadContent( $noredir );
-                       # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
-                       if ( $this->mTitle->getNamespace() == NS_USER_TALK &&
-                         $wgUser->isIP($this->mTitle->getText()) &&
-                         $action=='view'
-                       ) {
-                               wfProfileOut( $fname );
-                               return $this->mContent . "\n" .wfMsg('anontalkpagetext');
-                       } else {
-                               if($action=='edit') {
-                                       if($section!='') {
-                                               if($section=='new') {
-                                                       wfProfileOut( $fname );
-                                                       $text=$this->getPreloadedText($preload);
-                                                       return $text;
-                                               }
-
-                                               # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
-                                               # comments to be stripped as well)
-                                               $rv=$this->getSection($this->mContent,$section);
-                                               wfProfileOut( $fname );
-                                               return $rv;
-                                       }
-                               }
-                               wfProfileOut( $fname );
-                               return $this->mContent;
-                       }
-               }
-       }
-
-       /**
-               This function accepts a title string as parameter
-               ($preload). If this string is non-empty, it attempts
-               to fetch the current revision text.
-       */
-       function getPreloadedText($preload) {
-               if($preload) {
-                       $preloadTitle=Title::newFromText($preload);
-                       if(isset($preloadTitle) && $preloadTitle->userCanRead()) {
-                       $rev=Revision::newFromTitle($preloadTitle);
-                       if($rev) {
-                               return $rev->getText();
-                               }
-                       }
-               }
-               return '';
-       }
-
-       /**
-        * This function returns the text of a section, specified by a number ($section).
-        * A section is text under a heading like == Heading == or <h1>Heading</h1>, or
-        * the first section before any such heading (section 0).
-        *
-        * If a section contains subsections, these are also returned.
-        *
-        * @param string $text text to look in
-        * @param integer $section section number
-        * @return string text of the requested section
-        */
-       function getSection($text,$section) {
-
-               # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
-               # comments to be stripped as well)
-               $striparray=array();
-               $parser=new Parser();
-               $parser->mOutputType=OT_WIKI;
-               $parser->mOptions = new ParserOptions();
-               $striptext=$parser->strip($text, $striparray, true);
-
-               # now that we can be sure that no pseudo-sections are in the source,
-               # split it up by section
-               $secs =
-                 preg_split(
-                 '/(^=+.+?=+|^<h[1-6].*?' . '>.*?<\/h[1-6].*?' . '>)(?!\S)/mi',
-                 $striptext, -1,
-                 PREG_SPLIT_DELIM_CAPTURE);
-               if($section==0) {
-                       $rv=$secs[0];
-               } else {
-                       $headline=$secs[$section*2-1];
-                       preg_match( '/^(=+).+?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>(?!\S)/mi',$headline,$matches);
-                       $hlevel=$matches[1];
-
-                       # translate wiki heading into level
-                       if(strpos($hlevel,'=')!==false) {
-                               $hlevel=strlen($hlevel);
-                       }
-
-                       $rv=$headline. $secs[$section*2];
-                       $count=$section+1;
-
-                       $break=false;
-                       while(!empty($secs[$count*2-1]) && !$break) {
-
-                               $subheadline=$secs[$count*2-1];
-                               preg_match( '/^(=+).+?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>(?!\S)/mi',$subheadline,$matches);
-                               $subhlevel=$matches[1];
-                               if(strpos($subhlevel,'=')!==false) {
-                                       $subhlevel=strlen($subhlevel);
-                               }
-                               if($subhlevel > $hlevel) {
-                                       $rv.=$subheadline.$secs[$count*2];
-                               }
-                               if($subhlevel <= $hlevel) {
-                                       $break=true;
-                               }
-                               $count++;
-
-                       }
-               }
-               # reinsert stripped tags
-               $rv=$parser->unstrip($rv,$striparray);
-               $rv=$parser->unstripNoWiki($rv,$striparray);
-               $rv=trim($rv);
-               return $rv;
-
-       }
-
-       /**
-        * Return an array of the columns of the "cur"-table
-        */
-       function getContentFields() {
-               return $wgArticleContentFields = array(
-                 'old_text','old_flags',
-                 'rev_timestamp','rev_user', 'rev_user_text', 'rev_comment','page_counter',
-                 'page_namespace', 'page_title', 'page_restrictions','page_touched','page_is_redirect' );
-       }
-
-       /**
-        * Return the oldid of the article that is to be shown.
-        * For requests with a "direction", this is not the oldid of the
-        * query
-        */
-       function getOldID() {
-               global $wgRequest, $wgOut;
-               static $lastid;
-
-               if ( isset( $lastid ) ) {
-                       return $lastid;
-               }
-               # Query variables :P
-               $oldid = $wgRequest->getVal( 'oldid' );
-               if ( isset( $oldid ) ) {
-                       $oldid = IntVal( $oldid );
-                       if ( $wgRequest->getVal( 'direction' ) == 'next' ) {
-                               $nextid = $this->mTitle->getNextRevisionID( $oldid );
-                               if ( $nextid  ) {
-                                       $oldid = $nextid;
-                               } else {
-                                       $wgOut->redirect( $this->mTitle->getFullURL( 'redirect=no' ) );
-                               }
-                       } elseif ( $wgRequest->getVal( 'direction' ) == 'prev' ) {
-                               $previd = $this->mTitle->getPreviousRevisionID( $oldid );
-                               if ( $previd ) {
-                                       $oldid = $previd;
-                               } else {
-                                       # TODO
-                               }
-                       }
-                       $lastid = $oldid;
-               }
-               return @$oldid; # "@" to be able to return "unset" without PHP complaining
-       }
-
-
-       /**
-        * Load the revision (including cur_text) into this object
-        */
-       function loadContent( $noredir = false ) {
-               global $wgOut, $wgRequest;
-
-               if ( $this->mContentLoaded ) return;
-
-               # Query variables :P
-               $oldid = $this->getOldID();
-               $redirect = $wgRequest->getVal( 'redirect' );
-
-               $fname = 'Article::loadContent';
-
-               # Pre-fill content with error message so that if something
-               # fails we'll have something telling us what we intended.
-
-               $t = $this->mTitle->getPrefixedText();
-
-               $noredir = $noredir || ($wgRequest->getVal( 'redirect' ) == 'no')
-                       || $wgRequest->getCheck( 'rdfrom' );
-               $this->mOldId = $oldid;
-               $this->fetchContent( $oldid, $noredir, true );
-       }
-
-
-       /**
-        * Fetch a page record with the given conditions
-        * @param Database $dbr
-        * @param array    $conditions
-        * @access private
-        */
-       function pageData( &$dbr, $conditions ) {
-               return $dbr->selectRow( 'page',
-                       array(
-                               'page_id',
-                               'page_namespace',
-                               'page_title',
-                               'page_restrictions',
-                               'page_counter',
-                               'page_is_redirect',
-                               'page_is_new',
-                               'page_random',
-                               'page_touched',
-                               'page_latest',
-                               'page_len' ),
-                       $conditions,
-                       'Article::pageData' );
-       }
-
-       function pageDataFromTitle( &$dbr, $title ) {
-               return $this->pageData( $dbr, array(
-                       'page_namespace' => $title->getNamespace(),
-                       'page_title'     => $title->getDBkey() ) );
-       }
-
-       function pageDataFromId( &$dbr, $id ) {
-               return $this->pageData( $dbr, array(
-                       'page_id' => IntVal( $id ) ) );
-       }
-
-       /**
-        * Set the general counter, title etc data loaded from
-        * some source.
-        *
-        * @param object $data
-        * @access private
-        */
-       function loadPageData( $data ) {
-               $this->mTitle->loadRestrictions( $data->page_restrictions );
-               $this->mTitle->mRestrictionsLoaded = true;
-
-               $this->mCounter    = $data->page_counter;
-               $this->mTouched    = wfTimestamp( TS_MW, $data->page_touched );
-               $this->mIsRedirect = $data->page_is_redirect;
-               $this->mLatest     = $data->page_latest;
-
-               $this->mDataLoaded = true;
-       }
-
-       /**
-        * Get text of an article from database
-        * @param int $oldid 0 for whatever the latest revision is
-        * @param bool $noredir Set to false to follow redirects
-        * @param bool $globalTitle Set to true to change the global $wgTitle object when following redirects or other unexpected title changes
-        * @return string
-        */
-       function fetchContent( $oldid = 0, $noredir = true, $globalTitle = false ) {
-               if ( $this->mContentLoaded ) {
-                       return $this->mContent;
-               }
-               $dbr =& $this->getDB();
-               $fname = 'Article::fetchContent';
-
-               # 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( $oldid ) {
-                       $t .= ',oldid='.$oldid;
-               }
-               if( isset( $redirect ) ) {
-                       $redirect = ($redirect == 'no') ? 'no' : 'yes';
-                       $t .= ',redirect='.$redirect;
-               }
-               $this->mContent = wfMsg( 'missingarticle', $t );
-
-               if( $oldid ) {
-                       $revision = Revision::newFromId( $oldid );
-                       if( is_null( $revision ) ) {
-                               wfDebug( "$fname failed to retrieve specified revision, id $oldid\n" );
-                               return false;
-                       }
-                       $data = $this->pageDataFromId( $dbr, $revision->getPage() );
-                       if( !$data ) {
-                               wfDebug( "$fname failed to get page data linked to revision id $oldid\n" );
-                               return false;
-                       }
-                       $this->mTitle = Title::makeTitle( $data->page_namespace, $data->page_title );
-                       $this->loadPageData( $data );
-               } else {
-                       if( !$this->mDataLoaded ) {
-                               $data = $this->pageDataFromTitle( $dbr, $this->mTitle );
-                               if( !$data ) {
-                                       wfDebug( "$fname failed to find page data for title " . $this->mTitle->getPrefixedText() . "\n" );
-                                       return false;
-                               }
-                               $this->loadPageData( $data );
-                       }
-                       $revision = Revision::newFromId( $this->mLatest );
-                       if( is_null( $revision ) ) {
-                               wfDebug( "$fname failed to retrieve current page, rev_id $data->page_latest\n" );
-                               return false;
-                       }
-               }
-
-               # If we got a redirect, follow it (unless we've been told
-               # not to by either the function parameter or the query
-               if ( !$oldid && !$noredir ) {
-                       $rt = Title::newFromRedirect( $revision->getText() );
-                       # process if title object is valid and not special:userlogout
-                       if ( $rt && ! ( $rt->getNamespace() == NS_SPECIAL && $rt->getText() == 'Userlogout' ) ) {
-                               # Gotta hand redirects to special pages differently:
-                               # Fill the HTTP response "Location" header and ignore
-                               # the rest of the page we're on.
-                               global $wgDisableHardRedirects;
-                               if( $globalTitle && !$wgDisableHardRedirects ) {
-                                       global $wgOut;
-                                       if ( $rt->getInterwiki() != '' && $rt->isLocal() ) {
-                                               $source = $this->mTitle->getFullURL( 'redirect=no' );
-                                               $wgOut->redirect( $rt->getFullURL( 'rdfrom=' . urlencode( $source ) ) ) ;
-                                               return false;
-                                       }
-                                       if ( $rt->getNamespace() == NS_SPECIAL ) {
-                                               $wgOut->redirect( $rt->getFullURL() );
-                                               return false;
-                                       }
-                               }
-                               if( $rt->getInterwiki() == '' ) {
-                                       $redirData = $this->pageDataFromTitle( $dbr, $rt );
-                                       if( $redirData ) {
-                                               $redirRev = Revision::newFromId( $redirData->page_latest );
-                                               if( !is_null( $redirRev ) ) {
-                                                       $this->mRedirectedFrom = $this->mTitle->getPrefixedText();
-                                                       $this->mTitle = $rt;
-                                                       $data = $redirData;
-                                                       $this->loadPageData( $data );
-                                                       $revision = $redirRev;
-                                               }
-                                       }
-                               }
-                       }
-               }
-
-               # if the title's different from expected, update...
-               if( $globalTitle ) {
-                       global $wgTitle;
-                       if( !$this->mTitle->equals( $wgTitle ) ) {
-                               $wgTitle = $this->mTitle;
-                       }
-               }
-
-               # Back to the business at hand...
-               $this->mContent   = $revision->getText();
-
-               $this->mUser      = $revision->getUser();
-               $this->mUserText  = $revision->getUserText();
-               $this->mComment   = $revision->getComment();
-               $this->mTimestamp = wfTimestamp( TS_MW, $revision->getTimestamp() );
-
-               $this->mRevIdFetched = $revision->getID();
-               $this->mContentLoaded = true;
-               $this->mRevision =& $revision;
-
-               return $this->mContent;
-       }
-
-       /**
-        * Gets the article text without using so many damn globals
-        * Returns false on error
-        *
-        * @param integer $oldid
-        */
-       function getContentWithoutUsingSoManyDamnGlobals( $oldid = 0, $noredir = false ) {
-               return $this->fetchContent( $oldid, $noredir, false );
-       }
-
-       /**
-        * Read/write accessor to select FOR UPDATE
-        */
-       function forUpdate( $x = NULL ) {
-               return wfSetVar( $this->mForUpdate, $x );
-       }
-
-       /**
-        * Get the database which should be used for reads
-        */
-       function &getDB() {
-               #if ( $this->mForUpdate ) {
-                       $ret =& wfGetDB( DB_MASTER );
-               #} else {
-               #       $ret =& wfGetDB( DB_SLAVE );
-               #}
-               return $ret;
-       }
-
-       /**
-        * Get options for all SELECT statements
-        * Can pass an option array, to which the class-wide options will be appended
-        */
-       function getSelectOptions( $options = '' ) {
-               if ( $this->mForUpdate ) {
-                       if ( is_array( $options ) ) {
-                               $options[] = 'FOR UPDATE';
-                       } else {
-                               $options = 'FOR UPDATE';
-                       }
-               }
-               return $options;
-       }
-
-       /**
-        * Return the Article ID
-        */
-       function getID() {
-               if( $this->mTitle ) {
-                       return $this->mTitle->getArticleID();
-               } else {
-                       return 0;
-               }
-       }
-
-       /**
-        * Returns true if this article exists in the database.
-        * @return bool
-        */
-       function exists() {
-               return $this->getId() != 0;
-       }
-
-       /**
-        * Get the view count for this article
-        */
-       function getCount() {
-               if ( -1 == $this->mCounter ) {
-                       $id = $this->getID();
-                       $dbr =& $this->getDB();
-                       $this->mCounter = $dbr->selectField( 'page', 'page_counter', array( 'page_id' => $id ),
-                               'Article::getCount', $this->getSelectOptions() );
-               }
-               return $this->mCounter;
-       }
-
-       /**
-        * Would the given text make this article a "good" article (i.e.,
-        * suitable for including in the article count)?
-        * @param string $text Text to analyze
-        * @return integer 1 if it can be counted else 0
-        */
-       function isCountable( $text ) {
-               global $wgUseCommaCount;
-
-               if ( NS_MAIN != $this->mTitle->getNamespace() ) { return 0; }
-               if ( $this->isRedirect( $text ) ) { return 0; }
-               $token = ($wgUseCommaCount ? ',' : '[[' );
-               if ( false === strstr( $text, $token ) ) { return 0; }
-               return 1;
-       }
-
-       /**
-        * Tests if the article text represents a redirect
-        */
-       function isRedirect( $text = false ) {
-               if ( $text === false ) {
-                       $this->loadContent();
-                       $titleObj = Title::newFromRedirect( $this->fetchContent() );
-               } else {
-                       $titleObj = Title::newFromRedirect( $text );
-               }
-               return $titleObj !== NULL;
-       }
-
-       /**
-        * Returns true if the currently-referenced revision is the current edit
-        * to this page (and it exists).
-        * @return bool
-        */
-       function isCurrent() {
-               return $this->exists() &&
-                       isset( $this->mRevision ) &&
-                       $this->mRevision->isCurrent();
-       }
-
-       /**
-        * Loads everything except the text
-        * This isn't necessary for all uses, so it's only done if needed.
-        * @private
-        */
-       function loadLastEdit() {
-               global $wgOut;
-
-               if ( -1 != $this->mUser )
-                       return;
-
-               # New or non-existent articles have no user information
-               $id = $this->getID();
-               if ( 0 == $id ) return;
-
-               $this->mLastRevision = Revision::loadFromPageId( $this->getDB(), $id );
-               if( !is_null( $this->mLastRevision ) ) {
-                       $this->mUser      = $this->mLastRevision->getUser();
-                       $this->mUserText  = $this->mLastRevision->getUserText();
-                       $this->mTimestamp = $this->mLastRevision->getTimestamp();
-                       $this->mComment   = $this->mLastRevision->getComment();
-                       $this->mMinorEdit = $this->mLastRevision->isMinor();
-               }
-       }
-
-       function getTimestamp() {
-               $this->loadLastEdit();
-               return $this->mTimestamp;
-       }
-
-       function getUser() {
-               $this->loadLastEdit();
-               return $this->mUser;
-       }
-
-       function getUserText() {
-               $this->loadLastEdit();
-               return $this->mUserText;
-       }
-
-       function getComment() {
-               $this->loadLastEdit();
-               return $this->mComment;
-       }
-
-       function getMinorEdit() {
-               $this->loadLastEdit();
-               return $this->mMinorEdit;
-       }
-
-       function getRevIdFetched() {
-               $this->loadLastEdit();
-               return $this->mRevIdFetched;
-       }
-
-       function getContributors($limit = 0, $offset = 0) {
-               $fname = 'Article::getContributors';
-
-               # XXX: this is expensive; cache this info somewhere.
-
-               $title = $this->mTitle;
-               $contribs = array();
-               $dbr =& $this->getDB();
-               $revTable = $dbr->tableName( 'revision' );
-               $userTable = $dbr->tableName( 'user' );
-               $encDBkey = $dbr->addQuotes( $title->getDBkey() );
-               $ns = $title->getNamespace();
-               $user = $this->getUser();
-               $pageId = $this->getId();
-
-               $sql = "SELECT rev_user, rev_user_text, user_real_name, MAX(rev_timestamp) as timestamp
-                       FROM $revTable LEFT JOIN $userTable ON rev_user = user_id
-                       WHERE rev_page = $pageId
-                       AND rev_user != $user
-                       GROUP BY rev_user, rev_user_text, user_real_name
-                       ORDER BY timestamp DESC";
-
-               if ($limit > 0) { $sql .= ' LIMIT '.$limit; }
-               $sql .= ' '. $this->getSelectOptions();
-
-               $res = $dbr->query($sql, $fname);
-
-               while ( $line = $dbr->fetchObject( $res ) ) {
-                       $contribs[] = array($line->rev_user, $line->rev_user_text, $line->user_real_name);
-               }
-
-               $dbr->freeResult($res);
-               return $contribs;
-       }
-
-       /**
-        * This is the default action of the script: just view the page of
-        * the given title.
-       */
-       function view() {
-               global $wgUser, $wgOut, $wgRequest, $wgOnlySysopsCanPatrol, $wgLang;
-               global $wgLinkCache, $IP, $wgEnableParserCache, $wgStylePath, $wgUseRCPatrol;
-               global $wgEnotif, $wgParser, $wgParserCache, $wgUseTrackbacks;
-               $sk = $wgUser->getSkin();
-
-               $fname = 'Article::view';
-               wfProfileIn( $fname );
-               # Get variables from query string
-               $oldid = $this->getOldID();
-               $diff = $wgRequest->getVal( 'diff' );
-               $rcid = $wgRequest->getVal( 'rcid' );
-               $rdfrom = $wgRequest->getVal( 'rdfrom' );
-
-               $wgOut->setArticleFlag( true );
-               $wgOut->setRobotpolicy( 'index,follow' );
-               # If we got diff and oldid in the query, we want to see a
-               # diff page instead of the article.
-
-               if ( !is_null( $diff ) ) {
-                       require_once( 'DifferenceEngine.php' );
-                       $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
-
-                       $de = new DifferenceEngine( $oldid, $diff, $rcid );
-                       // DifferenceEngine directly fetched the revision:
-                       $this->mRevIdFetched = $de->mNewid;
-                       $de->showDiffPage();
-
-                       if( $diff == 0 ) {
-                               # Run view updates for current revision only
-                               $this->viewUpdates();
-                       }
-                       wfProfileOut( $fname );
-                       return;
-               }
-
-               if ( empty( $oldid ) && $this->checkTouched() ) {
-                       $wgOut->setETag($wgParserCache->getETag($this, $wgUser));
-
-                       if( $wgOut->checkLastModified( $this->mTouched ) ){
-                               wfProfileOut( $fname );
-                               return;
-                       } else if ( $this->tryFileCache() ) {
-                               # tell wgOut that output is taken care of
-                               $wgOut->disable();
-                               $this->viewUpdates();
-                               wfProfileOut( $fname );
-                               return;
-                       }
-               }
-               # Should the parser cache be used?
-               $pcache = $wgEnableParserCache &&
-                       intval( $wgUser->getOption( 'stubthreshold' ) ) == 0 &&
-                       $this->exists() &&
-                       empty( $oldid );
-               wfDebug( 'Article::view using parser cache: ' . ($pcache ? 'yes' : 'no' ) . "\n" );
-
-               $outputDone = false;
-               if ( $pcache ) {
-                       if ( $wgOut->tryParserCache( $this, $wgUser ) ) {
-                               $outputDone = true;
-                       }
-               }
-               if ( !$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
-
-                       if ( !empty( $oldid ) ) {
-                               $this->setOldSubtitle( isset($this->mOldId) ? $this->mOldId : $oldid );
-                               $wgOut->setRobotpolicy( 'noindex,follow' );
-                       }
-                       if ( '' != $this->mRedirectedFrom ) {
-                               if ( wfRunHooks( 'ArticleViewRedirect', array( &$this ) ) ) {
-                                       $sk = $wgUser->getSkin();
-                                       $redir = $sk->makeKnownLink( $this->mRedirectedFrom, '', 'redirect=no' );
-                                       $s = wfMsg( 'redirectedfrom', $redir );
-                                       $wgOut->setSubtitle( $s );
-                                       # Can't cache redirects
-                                       $pcache = false;
-                               }
-                       } elseif ( !empty( $rdfrom ) ) {
-                               global $wgRedirectSources;
-                               if( $wgRedirectSources && preg_match( $wgRedirectSources, $rdfrom ) ) {
-                                       $sk = $wgUser->getSkin();
-                                       $redir = $sk->makeExternalLink( $rdfrom, $rdfrom );
-                                       $s = wfMsg( 'redirectedfrom', $redir );
-                                       $wgOut->setSubtitle( $s );
-                               }
-                       }
-
-                       # 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 (
-                               $this->mTitle->getNamespace() == NS_USER &&
-                               preg_match('/\\/[\\w]+\\.(css|js)$/', $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.'/common/images/redirect.png';
-                               $targetUrl = $rt->escapeLocalURL();
-                               $titleText = htmlspecialchars( $rt->getPrefixedText() );
-                               $link = $sk->makeLinkObj( $rt );
-
-                               $wgOut->addHTML( '<img valign="center" src="'.$imageUrl.'" alt="#REDIRECT" />' .
-                                 '<span class="redirectText">'.$link.'</span>' );
-
-                               $parseout = $wgParser->parse($text, $this->mTitle, ParserOptions::newFromUser($wgUser));
-                               $catlinks = $parseout->getCategoryLinks();
-                               $wgOut->addCategoryLinks($catlinks);
-                               $skin = $wgUser->getSkin();
-                       } else if ( $pcache ) {
-                               # Display content and save to parser cache
-                               $wgOut->addPrimaryWikiText( $text, $this );
-                       } else {
-                               # Display content, don't attempt to save to parser cache
-
-                               # Don't show section-edit links on old revisions... this way lies madness.
-                               if( !$this->isCurrent() ) {
-                                       $oldEditSectionSetting = $wgOut->mParserOptions->setEditSection( false );
-                               }
-                               $wgOut->addWikiText( $text );
-
-                               if( !$this->isCurrent() ) {
-                                       $wgOut->mParserOptions->setEditSection( $oldEditSectionSetting );
-                               }
-                       }
-               }
-               /* title may have been set from the cache */
-               $t = $wgOut->getPageTitle();
-               if( empty( $t ) ) {
-                       $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->isLoggedIn()
-                       && ( $wgUser->isAllowed('patrol') || !$wgOnlySysopsCanPatrol ) )
-               {
-                       $wgOut->addHTML(
-                               "<div class='patrollink'>" .
-                                       wfMsg ( 'markaspatrolledlink',
-                                       $sk->makeKnownLinkObj( $this->mTitle, wfMsg('markaspatrolledtext'), "action=markpatrolled&rcid=$rcid" )
-                                       ) .
-                               '</div>'
-                        );
-               }
-
-               # Trackbacks
-               if ($wgUseTrackbacks)
-                       $this->addTrackbacks();
-
-               # Put link titles into the link cache
-               $wgOut->transformBuffer();
-
-               # Add link titles as META keywords
-               $wgOut->addMetaTags() ;
-
-               $this->viewUpdates();
-               wfProfileOut( $fname );
-       }
-
-       function addTrackbacks() {
-               global $wgOut, $wgUser;
-
-               $dbr = wfGetDB(DB_SLAVE);
-               $tbs = $dbr->select(
-                               /* FROM   */ 'trackbacks',
-                               /* SELECT */ array('tb_id', 'tb_title', 'tb_url', 'tb_ex', 'tb_name'),
-                               /* WHERE  */ array('tb_page' => $this->getID())
-               );
-
-               if (!$dbr->numrows($tbs))
-                       return;
-
-               $tbtext = "";
-               while ($o = $dbr->fetchObject($tbs)) {
-                       $rmvtxt = "";
-                       if ($wgUser->isSysop()) {
-                               $delurl = $this->mTitle->getFullURL("action=deletetrackback&tbid="
-                                               . $o->tb_id . "&token=" . $wgUser->editToken());
-                               $rmvtxt = wfMsg('trackbackremove', $delurl);
-                       }
-                       $tbtext .= wfMsg(strlen($o->tb_ex) ? 'trackbackexcerpt' : 'trackback',
-                                       $o->tb_title,
-                                       $o->tb_url,
-                                       $o->tb_ex,
-                                       $o->tb_name,
-                                       $rmvtxt);
-               }
-               $wgOut->addWikitext(wfMsg('trackbackbox', $tbtext));
-       }
-
-       function deletetrackback() {
-               global $wgUser, $wgRequest, $wgOut, $wgTitle;
-
-               if (!$wgUser->matchEditToken($wgRequest->getVal('token'))) {
-                       $wgOut->addWikitext(wfMsg('sessionfailure'));
-                       return;
-               }
-
-               if ((!$wgUser->isAllowed('delete'))) {
-                       $wgOut->sysopRequired();
-                       return;
-               }
-
-               if (wfReadOnly()) {
-                       $wgOut->readOnlyPage();
-                       return;
-               }
-
-               $db = wfGetDB(DB_MASTER);
-               $db->delete('trackbacks', array('tb_id' => $wgRequest->getInt('tbid')));
-               $wgTitle->invalidateCache();
-               $wgOut->addWikiText(wfMsg('trackbackdeleteok'));
-       }
-
-       function render() {
-               global $wgOut;
-
-               $wgOut->setArticleBodyOnly(true);
-               $this->view();
-       }
-
-       /**
-        * Insert a new empty page record for this article.
-        * This *must* be followed up by creating a revision
-        * and running $this->updateToLatest( $rev_id );
-        * or else the record will be left in a funky state.
-        * Best if all done inside a transaction.
-        *
-        * @param Database $dbw
-        * @param string   $restrictions
-        * @return int     The newly created page_id key
-        * @access private
-        */
-       function insertOn( &$dbw, $restrictions = '' ) {
-               $fname = 'Article::insertOn';
-               wfProfileIn( $fname );
-
-               $page_id = $dbw->nextSequenceValue( 'page_page_id_seq' );
-               $dbw->insert( 'page', array(
-                       'page_id'           => $page_id,
-                       'page_namespace'    => $this->mTitle->getNamespace(),
-                       'page_title'        => $this->mTitle->getDBkey(),
-                       'page_counter'      => 0,
-                       'page_restrictions' => $restrictions,
-                       'page_is_redirect'  => 0, # Will set this shortly...
-                       'page_is_new'       => 1,
-                       'page_random'       => wfRandom(),
-                       'page_touched'      => $dbw->timestamp(),
-                       'page_latest'       => 0, # Fill this in shortly...
-                       'page_len'          => 0, # Fill this in shortly...
-               ), $fname );
-               $newid = $dbw->insertId();
-
-               $this->mTitle->resetArticleId( $newid );
-
-               wfProfileOut( $fname );
-               return $newid;
-       }
-
-       /**
-        * Update the page record to point to a newly saved revision.
-        *
-        * @param Database $dbw
-        * @param Revision $revision -- for ID number, and text used to set
-                                       length and redirect status fields
-        * @param int $lastRevision -- if given, will not overwrite the page field
-        *                             when different from the currently set value.
-        *                             Giving 0 indicates the new page flag should
-        *                             be set on.
-        * @return bool true on success, false on failure
-        * @access private
-        */
-       function updateRevisionOn( &$dbw, $revision, $lastRevision = null ) {
-               $fname = 'Article::updateToRevision';
-               wfProfileIn( $fname );
-
-               $conditions = array( 'page_id' => $this->getId() );
-               if( !is_null( $lastRevision ) ) {
-                       # An extra check against threads stepping on each other
-                       $conditions['page_latest'] = $lastRevision;
-               }
-
-               $text = $revision->getText();
-               $dbw->update( 'page',
-                       array( /* SET */
-                               'page_latest'      => $revision->getId(),
-                               'page_touched'     => $dbw->timestamp(),
-                               'page_is_new'      => ($lastRevision === 0) ? 1 : 0,
-                               'page_is_redirect' => Article::isRedirect( $text ) ? 1 : 0,
-                               'page_len'         => strlen( $text ),
-                       ),
-                       $conditions,
-                       $fname );
-
-               wfProfileOut( $fname );
-               return ( $dbw->affectedRows() != 0 );
-       }
-
-       /**
-        * If the given revision is newer than the currently set page_latest,
-        * update the page record. Otherwise, do nothing.
-        *
-        * @param Database $dbw
-        * @param Revision $revision
-        */
-       function updateIfNewerOn( &$dbw, $revision ) {
-               $fname = 'Article::updateIfNewerOn';
-               wfProfileIn( $fname );
-
-               $row = $dbw->selectRow(
-                       array( 'revision', 'page' ),
-                       array( 'rev_id', 'rev_timestamp' ),
-                       array(
-                               'page_id' => $this->getId(),
-                               'page_latest=rev_id' ),
-                       $fname );
-               if( $row ) {
-                       if( $row->rev_timestamp >= $revision->getTimestamp() ) {
-                               wfProfileOut( $fname );
-                               return false;
-                       }
-                       $prev = $row->rev_id;
-               } else {
-                       # No or missing previous revision; mark the page as new
-                       $prev = 0;
-               }
-
-               $ret = $this->updateRevisionOn( $dbw, $revision, $prev );
-               wfProfileOut( $fname );
-               return $ret;
-       }
-
-       /**
-        * Theoretically we could defer these whole insert and update
-        * functions for after display, but that's taking a big leap
-        * of faith, and we want to be able to report database
-        * errors at some point.
-        * @private
-        */
-       function insertNewArticle( $text, $summary, $isminor, $watchthis, $suppressRC=false, $comment=false ) {
-               global $wgOut, $wgUser;
-               global $wgUseSquid, $wgDeferredUpdateList, $wgInternalServer;
-
-               $fname = 'Article::insertNewArticle';
-               wfProfileIn( $fname );
-
-               $this->mGoodAdjustment = $this->isCountable( $text );
-               $this->mTotalAdjustment = 1;
-
-               $ns = $this->mTitle->getNamespace();
-               $ttl = $this->mTitle->getDBkey();
-
-               # If this is a comment, add the summary as headline
-               if($comment && $summary!="") {
-                       $text="== {$summary} ==\n\n".$text;
-               }
-               $text = $this->preSaveTransform( $text );
-               $isminor = ( $isminor && $wgUser->isLoggedIn() ) ? 1 : 0;
-               $now = wfTimestampNow();
-
-               $dbw =& wfGetDB( DB_MASTER );
-
-               # Add the page record; stake our claim on this title!
-               $newid = $this->insertOn( $dbw );
-
-               # Save the revision text...
-               $revision = new Revision( array(
-                       'page'       => $newid,
-                       'comment'    => $summary,
-                       'minor_edit' => $isminor,
-                       'text'       => $text
-                       ) );
-               $revisionId = $revision->insertOn( $dbw );
-
-               $this->mTitle->resetArticleID( $newid );
-
-               # Update the page record with revision data
-               $this->updateRevisionOn( $dbw, $revision, 0 );
-
-               Article::onArticleCreate( $this->mTitle );
-               if(!$suppressRC) {
-                       RecentChange::notifyNew( $now, $this->mTitle, $isminor, $wgUser, $summary, 'default',
-                         '', strlen( $text ), $revisionId );
-               }
-
-               if ($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
-               $dbw->update( 'page',
-                       array( 'page_touched' => $dbw->timestamp($now) ),
-                       array( 'page_namespace' => $talkns,
-                              'page_title' => $ttl ),
-                       $fname );
-
-               # standard deferred updates
-               $this->editUpdates( $text, $summary, $isminor, $now );
-
-               $oldid = 0; # new article
-               $this->showArticle( $text, wfMsg( 'newarticle' ), false, $isminor, $now, $summary, $oldid );
-               wfProfileOut( $fname );
-       }
-
-       function getTextOfLastEditWithSectionReplacedOrAdded($section, $text, $summary = '', $edittime = NULL) {
-               $fname = 'Article::getTextOfLastEditWithSectionReplacedOrAdded';
-               if ($section != '') {
-                       if( is_null( $edittime ) ) {
-                               $rev = Revision::newFromTitle( $this->mTitle );
-                       } else {
-                               $dbw =& wfGetDB( DB_MASTER );
-                               $rev = Revision::loadFromTimestamp( $dbw, $this->mTitle, $edittime );
-                       }
-                       $oldtext = $rev->getText();
-
-                       if($section=='new') {
-                               if($summary) $subject="== {$summary} ==\n\n";
-                               $text=$oldtext."\n\n".$subject.$text;
-                       } else {
-
-                               # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
-                               # comments to be stripped as well)
-                               $striparray=array();
-                               $parser=new Parser();
-                               $parser->mOutputType=OT_WIKI;
-                               $parser->mOptions = new ParserOptions();
-                               $oldtext=$parser->strip($oldtext, $striparray, true);
-
-                               # now that we can be sure that no pseudo-sections are in the source,
-                               # split it up
-                               # Unfortunately we can't simply do a preg_replace because that might
-                               # replace the wrong section, so we have to use the section counter instead
-                               $secs=preg_split('/(^=+.+?=+|^<h[1-6].*?' . '>.*?<\/h[1-6].*?' . '>)(?!\S)/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) {
-
-                                       # 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
-                                       # the text of all subsections.
-                                       $headline=$secs[$section*2-1];
-                                       preg_match( '/^(=+).+?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>(?!\S)/mi',$headline,$matches);
-                                       $hlevel=$matches[1];
-
-                                       # determine headline level for wikimarkup headings
-                                       if(strpos($hlevel,'=')!==false) {
-                                               $hlevel=strlen($hlevel);
-                                       }
-
-                                       $secs[$section*2-1]=''; // erase old headline
-                                       $count=$section+1;
-                                       $break=false;
-                                       while(!empty($secs[$count*2-1]) && !$break) {
-
-                                               $subheadline=$secs[$count*2-1];
-                                               preg_match(
-                                                '/^(=+).+?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>(?!\S)/mi',$subheadline,$matches);
-                                               $subhlevel=$matches[1];
-                                               if(strpos($subhlevel,'=')!==false) {
-                                                       $subhlevel=strlen($subhlevel);
-                                               }
-                                               if($subhlevel > $hlevel) {
-                                                       // erase old subsections
-                                                       $secs[$count*2-1]='';
-                                                       $secs[$count*2]='';
-                                               }
-                                               if($subhlevel <= $hlevel) {
-                                                       $break=true;
-                                               }
-                                               $count++;
-
-                                       }
-
-                               }
-                               $text=join('',$secs);
-                               # reinsert the stuff that we stripped out earlier
-                               $text=$parser->unstrip($text,$striparray);
-                               $text=$parser->unstripNoWiki($text,$striparray);
-                       }
-
-               }
-               return $text;
-       }
-
-       /**
-        * Change an existing article. Puts the previous version back into the old table, updates RC
-        * and all necessary caches, mostly via the deferred update array.
-        *
-        * It is possible to call this function from a command-line script, but note that you should
-        * first set $wgUser, and clean up $wgDeferredUpdates after each edit.
-        */
-       function updateArticle( $text, $summary, $minor, $watchthis, $forceBot = false, $sectionanchor = '' ) {
-               global $wgOut, $wgUser;
-               global $wgDBtransactions, $wgMwRedir;
-               global $wgUseSquid, $wgInternalServer, $wgPostCommitUpdateList, $wgUseFileCache;
-
-               $fname = 'Article::updateArticle';
-               wfProfileIn( $fname );
-               $good = true;
-
-               $isminor = ( $minor && $wgUser->isLoggedIn() );
-               if ( $this->isRedirect( $text ) ) {
-                       # Remove all content but redirect
-                       # This could be done by reconstructing the redirect from a title given by
-                       # Title::newFromRedirect(), but then we wouldn't know which synonym the user
-                       # wants to see
-                       if ( preg_match( "/^((" . $wgMwRedir->getBaseRegex() . ')[^\\n]+)/i', $text, $m ) ) {
-                               $redir = 1;
-                               $text = $m[1] . "\n";
-                       }
-               }
-               else { $redir = 0; }
-
-               $text = $this->preSaveTransform( $text );
-               $dbw =& wfGetDB( DB_MASTER );
-               $now = wfTimestampNow();
-
-               # Update article, but only if changed.
-
-               # It's important that we either rollback or complete, otherwise an attacker could
-               # overwrite cur entries by sending precisely timed user aborts. Random bored users
-               # could conceivably have the same effect, especially if cur is locked for long periods.
-               if( !$wgDBtransactions ) {
-                       $userAbort = ignore_user_abort( true );
-               }
-
-               $oldtext = $this->getContent( true );
-               $oldsize = strlen( $oldtext );
-               $newsize = strlen( $text );
-               $lastRevision = 0;
-
-               if ( 0 != strcmp( $text, $oldtext ) ) {
-                       $this->mGoodAdjustment = $this->isCountable( $text )
-                         - $this->isCountable( $oldtext );
-                       $this->mTotalAdjustment = 0;
-                       $now = wfTimestampNow();
-
-                       $lastRevision = $dbw->selectField(
-                               'page', 'page_latest', array( 'page_id' => $this->getId() ) );
-
-                       $revision = new Revision( array(
-                               'page'       => $this->getId(),
-                               'comment'    => $summary,
-                               'minor_edit' => $isminor,
-                               'text'       => $text
-                               ) );
-                       
-                       $dbw->immediateCommit();
-                       $dbw->begin();
-                       $revisionId = $revision->insertOn( $dbw );
-
-                       # Update page
-                       $ok = $this->updateRevisionOn( $dbw, $revision, $lastRevision );
-
-                       if( !$ok ) {
-                               /* Belated edit conflict! Run away!! */
-                               $good = false;
-                               $dbw->rollback();
-                       } else {
-                               # Update recentchanges and purge cache and whatnot
-                               $bot = (int)($wgUser->isBot() || $forceBot);
-                               RecentChange::notifyEdit( $now, $this->mTitle, $isminor, $wgUser, $summary,
-                                       $lastRevision, $this->getTimestamp(), $bot, '', $oldsize, $newsize,
-                                       $revisionId );
-                               Article::onArticleEdit( $this->mTitle );
-                               $dbw->commit();
-                       }
-               }
-
-               if( !$wgDBtransactions ) {
-                       ignore_user_abort( $userAbort );
-               }
-
-               if ( $good ) {
-                       if ($watchthis) {
-                               if (!$this->mTitle->userIsWatching()) $this->watch();
-                       } else {
-                               if ( $this->mTitle->userIsWatching() ) {
-                                       $this->unwatch();
-                               }
-                       }
-                       # standard deferred updates
-                       $this->editUpdates( $text, $summary, $minor, $now );
-
-
-                       $urls = array();
-                       # Template namespace
-                       # Purge all articles linking here
-                       if ( $this->mTitle->getNamespace() == NS_TEMPLATE) {
-                               $titles = $this->mTitle->getLinksTo();
-                               Title::touchArray( $titles );
-                               if ( $wgUseSquid ) {
-                                               foreach ( $titles as $title ) {
-                                                       $urls[] = $title->getInternalURL();
-                                               }
-                               }
-                       }
-
-                       # Squid updates
-                       if ( $wgUseSquid ) {
-                               $urls = array_merge( $urls, $this->mTitle->getSquidURLs() );
-                               $u = new SquidUpdate( $urls );
-                               array_push( $wgPostCommitUpdateList, $u );
-                       }
-
-                       # File cache
-                       if ( $wgUseFileCache ) {
-                               $cm = new CacheManager($this->mTitle);
-                               @unlink($cm->fileCacheName());
-                       }
-
-                       $this->showArticle( $text, wfMsg( 'updated' ), $sectionanchor, $isminor, $now, $summary, $lastRevision );
-               }
-               wfProfileOut( $fname );
-               return $good;
-       }
-
-       /**
-        * After we've either updated or inserted the article, update
-        * the link tables and redirect to the new page.
-        */
-       function showArticle( $text, $subtitle , $sectionanchor = '', $me2, $now, $summary, $oldid ) {
-               global $wgUseDumbLinkUpdate, $wgAntiLockFlags, $wgOut, $wgUser, $wgLinkCache, $wgEnotif;
-               global $wgUseEnotif;
-
-               $fname = 'Article::showArticle';
-               wfProfileIn( $fname );
-
-               $wgLinkCache = new LinkCache();
-
-               if ( !$wgUseDumbLinkUpdate ) {
-                       # Preload links to reduce lock time
-                       if ( $wgAntiLockFlags & ALF_PRELOAD_LINKS ) {
-                               $wgLinkCache->preFill( $this->mTitle );
-                               $wgLinkCache->clear();
-                       }
-               }
-
-               # Parse the text and replace links with placeholders
-               $wgOut = new OutputPage();
-
-               # Pass the current title along in case we're creating a wiki page
-               # which is different than the currently displayed one (e.g. image
-               # pages created on file uploads); otherwise, link updates will
-               # go wrong.
-               $wgOut->addWikiTextWithTitle( $text, $this->mTitle );
-
-               if ( !$wgUseDumbLinkUpdate ) {
-                       # Move the current links back to the second register
-                       $wgLinkCache->swapRegisters();
-
-                       # Get old version of link table to allow incremental link updates
-                       # Lock this data now since it is needed for an update
-                       $wgLinkCache->forUpdate( true );
-                       $wgLinkCache->preFill( $this->mTitle );
-
-                       # Swap this old version back into its rightful place
-                       $wgLinkCache->swapRegisters();
-               }
-
-               if( $this->isRedirect( $text ) )
-                       $r = 'redirect=no';
-               else
-                       $r = '';
-               $wgOut->redirect( $this->mTitle->getFullURL( $r ).$sectionanchor );
-
-               if ( $wgUseEnotif  ) {
-                       # this would be better as an extension hook
-                       include_once( "UserMailer.php" );
-                       $wgEnotif = new EmailNotification ();
-                       $wgEnotif->notifyOnPageChange( $this->mTitle, $now, $summary, $me2, $oldid );
-               }
-               wfProfileOut( $fname );
-       }
-
-       /**
-        * Mark this particular edit as patrolled
-        */
-       function markpatrolled() {
-               global $wgOut, $wgRequest, $wgOnlySysopsCanPatrol, $wgUseRCPatrol, $wgUser;
-               $wgOut->setRobotpolicy( 'noindex,follow' );
-
-               if ( !$wgUseRCPatrol )
-               {
-                       $wgOut->errorpage( 'rcpatroldisabled', 'rcpatroldisabledtext' );
-                       return;
-               }
-               if ( $wgUser->isAnon() )
-               {
-                       $wgOut->loginToUse();
-                       return;
-               }
-               if ( $wgOnlySysopsCanPatrol && !$wgUser->isAllowed('patrol') )
-               {
-                       $wgOut->sysopRequired();
-                       return;
-               }
-               $rcid = $wgRequest->getVal( 'rcid' );
-               if ( !is_null ( $rcid ) )
-               {
-                       RecentChange::markPatrolled( $rcid );
-                       $wgOut->setPagetitle( wfMsg( 'markedaspatrolled' ) );
-                       $wgOut->addWikiText( wfMsg( 'markedaspatrolledtext' ) );
-
-                       $rcTitle = Title::makeTitle( NS_SPECIAL, 'Recentchanges' );
-                       $wgOut->returnToMain( false, $rcTitle->getPrefixedText() );
-               }
-               else
-               {
-                       $wgOut->errorpage( 'markedaspatrollederror', 'markedaspatrollederrortext' );
-               }
-       }
-
-       /**
-        * Validate function
-        */
-       function validate() {
-               global $wgOut, $wgUser, $wgRequest, $wgUseValidation;
-
-               if ( !$wgUseValidation ) # Are we using article validation at all?
-               {
-                       $wgOut->errorpage( "nosuchspecialpage", "nospecialpagetext" );
-                       return ;
-               }
-
-               $wgOut->setRobotpolicy( 'noindex,follow' );
-               $revision = $wgRequest->getVal( 'revision' );
-
-               include_once ( "SpecialValidate.php" ) ; # The "Validation" class
-
-               $v = new Validation ;
-               if ( $wgRequest->getVal ( "mode" , "" ) == "list" )
-                       $t = $v->showList ( $this ) ;
-               else if ( $wgRequest->getVal ( "mode" , "" ) == "details" )
-                       $t = $v->showDetails ( $this , $wgRequest->getVal( 'revision' ) ) ;
-               else
-                       $t = $v->validatePageForm ( $this , $revision ) ;
-
-               $wgOut->addHTML ( $t ) ;
-       }
-
-       /**
-        * Add this page to $wgUser's watchlist
-        */
-
-       function watch() {
-
-               global $wgUser, $wgOut;
-
-               if ( $wgUser->isAnon() ) {
-                       $wgOut->errorpage( 'watchnologin', 'watchnologintext' );
-                       return;
-               }
-               if ( wfReadOnly() ) {
-                       $wgOut->readOnlyPage();
-                       return;
-               }
-
-               if (wfRunHooks('WatchArticle', array(&$wgUser, &$this))) {
-
-                       $wgUser->addWatch( $this->mTitle );
-                       $wgUser->saveSettings();
-
-                       wfRunHooks('WatchArticleComplete', array(&$wgUser, &$this));
-
-                       $wgOut->setPagetitle( wfMsg( 'addedwatch' ) );
-                       $wgOut->setRobotpolicy( 'noindex,follow' );
-
-                       $link = $this->mTitle->getPrefixedText();
-                       $text = wfMsg( 'addedwatchtext', $link );
-                       $wgOut->addWikiText( $text );
-               }
-
-               $wgOut->returnToMain( true, $this->mTitle->getPrefixedText() );
-       }
-
-       /**
-        * Stop watching a page
-        */
-
-       function unwatch() {
-
-               global $wgUser, $wgOut;
-
-               if ( $wgUser->isAnon() ) {
-                       $wgOut->errorpage( 'watchnologin', 'watchnologintext' );
-                       return;
-               }
-               if ( wfReadOnly() ) {
-                       $wgOut->readOnlyPage();
-                       return;
-               }
-
-               if (wfRunHooks('UnwatchArticle', array(&$wgUser, &$this))) {
-
-                       $wgUser->removeWatch( $this->mTitle );
-                       $wgUser->saveSettings();
-
-                       wfRunHooks('UnwatchArticleComplete', array(&$wgUser, &$this));
-
-                       $wgOut->setPagetitle( wfMsg( 'removedwatch' ) );
-                       $wgOut->setRobotpolicy( 'noindex,follow' );
-
-                       $link = $this->mTitle->getPrefixedText();
-                       $text = wfMsg( 'removedwatchtext', $link );
-                       $wgOut->addWikiText( $text );
-               }
-
-               $wgOut->returnToMain( true, $this->mTitle->getPrefixedText() );
-       }
-
-       /**
-        * protect a page
-        */
-       function protect( $limit = 'sysop' ) {
-               global $wgUser, $wgOut, $wgRequest;
-
-               if ( ! $wgUser->isAllowed('protect') ) {
-                       $wgOut->sysopRequired();
-                       return;
-               }
-               if ( wfReadOnly() ) {
-                       $wgOut->readOnlyPage();
-                       return;
-               }
-               $id = $this->mTitle->getArticleID();
-               if ( 0 == $id ) {
-                       $wgOut->fatalError( wfMsg( 'badarticleerror' ) );
-                       return;
-               }
-
-               $confirm = $wgRequest->wasPosted() &&
-                       $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ) );
-               $moveonly = $wgRequest->getBool( 'wpMoveOnly' );
-               $reason = $wgRequest->getText( 'wpReasonProtect' );
-
-               if ( $confirm ) {
-                       $dbw =& wfGetDB( DB_MASTER );
-                       $dbw->update( 'page',
-                               array( /* SET */
-                                       'page_touched' => $dbw->timestamp(),
-                                       'page_restrictions' => (string)$limit
-                               ), array( /* WHERE */
-                                       'page_id' => $id
-                               ), 'Article::protect'
-                       );
-
-                       $restrictions = "move=" . $limit;
-                       if( !$moveonly ) {
-                               $restrictions .= ":edit=" . $limit;
-                       }
-                       if (wfRunHooks('ArticleProtect', array(&$this, &$wgUser, $limit == 'sysop', $reason, $moveonly))) {
-
-                               $dbw =& wfGetDB( DB_MASTER );
-                               $dbw->update( 'page',
-                                                         array( /* SET */
-                                                                        'page_touched' => $dbw->timestamp(),
-                                                                        'page_restrictions' => $restrictions
-                                                                        ), array( /* WHERE */
-                                                                                          'page_id' => $id
-                                                                                          ), 'Article::protect'
-                                                         );
-
-                               wfRunHooks('ArticleProtectComplete', array(&$this, &$wgUser, $limit == 'sysop', $reason, $moveonly));
-
-                               $log = new LogPage( 'protect' );
-                               if ( $limit === '' ) {
-                                       $log->addEntry( 'unprotect', $this->mTitle, $reason );
-                               } else {
-                                       $log->addEntry( 'protect', $this->mTitle, $reason );
-                               }
-                               $wgOut->redirect( $this->mTitle->getFullURL() );
-                       }
-                       return;
-               } else {
-                       return $this->confirmProtect( '', '', $limit );
-               }
-       }
-
-       /**
-        * Output protection confirmation dialog
-        */
-       function confirmProtect( $par, $reason, $limit = 'sysop'  ) {
-               global $wgOut, $wgUser;
-
-               wfDebug( "Article::confirmProtect\n" );
-
-               $sub = htmlspecialchars( $this->mTitle->getPrefixedText() );
-               $wgOut->setRobotpolicy( 'noindex,nofollow' );
-
-               $check = '';
-               $protcom = '';
-               $moveonly = '';
-
-               if ( $limit === '' ) {
-                       $wgOut->setPageTitle( wfMsg( 'confirmunprotect' ) );
-                       $wgOut->setSubtitle( wfMsg( 'unprotectsub', $sub ) );
-                       $wgOut->addWikiText( wfMsg( 'confirmunprotecttext' ) );
-                       $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' ) );
-                       $moveonly = wfMsg( 'protectmoveonly' ) ; // add it using addWikiText to prevent xss. bug:3991
-                       $protcom = htmlspecialchars( wfMsg( 'protectcomment' ) );
-                       $formaction = $this->mTitle->escapeLocalURL( 'action=protect' . $par );
-               }
-
-               $confirm = htmlspecialchars( wfMsg( 'confirm' ) );
-               $token = htmlspecialchars( $wgUser->editToken() );
-
-               $wgOut->addHTML( "
-<form id='protectconfirm' method='post' action=\"{$formaction}\">
-       <table border='0'>
-               <tr>
-                       <td align='right'>
-                               <label for='wpReasonProtect'>{$protcom}:</label>
-                       </td>
-                       <td align='left'>
-                               <input type='text' size='60' name='wpReasonProtect' id='wpReasonProtect' value=\"" . htmlspecialchars( $reason ) . "\" />
-                       </td>
-               </tr>" );
-               if($moveonly != '') {
-                       $wgOut->AddHTML( "
-               <tr>
-                       <td align='right'>
-                               <input type='checkbox' name='wpMoveOnly' value='1' id='wpMoveOnly' />
-                       </td>
-                       <td align='left'>
-                               <label for='wpMoveOnly'> ");
-                       $wgOut->addWikiText( $moveonly ); // bug 3991
-                       $wgOut->addHTML( "
-                               </label>
-                       </td>
-               </tr> " );
-               }
-               $wgOut->addHTML( "
-               <tr>
-                       <td>&nbsp;</td>
-                       <td>
-                               <input type='submit' name='wpConfirmProtectB' value=\"{$confirm}\" />
-                       </td>
-               </tr>
-       </table>
-       <input type='hidden' name='wpEditToken' value=\"{$token}\" />
-</form>" );
-
-               $wgOut->returnToMain( false );
-       }
-
-       /**
-        * Unprotect the pages
-        */
-       function unprotect() {
-               return $this->protect( '' );
-       }
-
-       /*
-        * UI entry point for page deletion
-        */
-       function delete() {
-               global $wgUser, $wgOut, $wgMessageCache, $wgRequest;
-               $fname = 'Article::delete';
-               $confirm = $wgRequest->wasPosted() &&
-                       $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ) );
-               $reason = $wgRequest->getText( 'wpReason' );
-
-               # This code desperately needs to be totally rewritten
-
-               # Check permissions
-               if( ( !$wgUser->isAllowed( 'delete' ) ) ) {
-                       $wgOut->sysopRequired();
-                       return;
-               }
-               if( wfReadOnly() ) {
-                       $wgOut->readOnlyPage();
-                       return;
-               }
-
-               # Better double-check that it hasn't been deleted yet!
-               $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
-               if( !$this->mTitle->exists() ) {
-                       $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
-                       return;
-               }
-
-               if( $confirm ) {
-                       $this->doDelete( $reason );
-                       return;
-               }
-
-               # 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 =& $this->getDB();
-               $ns = $this->mTitle->getNamespace();
-               $title = $this->mTitle->getDBkey();
-               $revisions = $dbr->select( array( 'page', 'revision' ),
-                       array( 'rev_id', 'rev_user_text' ),
-                       array(
-                               'page_namespace' => $ns,
-                               'page_title' => $title,
-                               'rev_page = page_id'
-                       ), $fname, $this->getSelectOptions( array( 'ORDER BY' => 'rev_timestamp DESC' ) )
-               );
-
-               if( $dbr->numRows( $revisions ) > 1 && !$confirm ) {
-                       $skin=$wgUser->getSkin();
-                       $wgOut->addHTML('<b>'.wfMsg('historywarning'));
-                       $wgOut->addHTML( $skin->historyLink() .'</b>');
-               }
-
-               # Fetch cur_text
-               $rev = Revision::newFromTitle( $this->mTitle );
-
-               # Fetch name(s) of contributors
-               $rev_name = '';
-               $all_same_user = true;
-               while( $row = $dbr->fetchObject( $revisions ) ) {
-                       if( $rev_name != '' && $rev_name != $row->rev_user_text ) {
-                               $all_same_user = false;
-                       } else {
-                               $rev_name = $row->rev_user_text;
-                       }
-               }
-
-               if( !is_null( $rev ) ) {
-                       # if this is a mini-text, we can paste part of it into the deletion reason
-                       $text = $rev->getText();
-
-                       #if this is empty, an earlier revision may contain "useful" text
-                       $blanked = false;
-                       if( $text == '' ) {
-                               $prev = $rev->getPrevious();
-                               if( $prev ) {
-                                       $text = $prev->getText();
-                                       $blanked = true;
-                               }
-                       }
-
-                       $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 === '' ) {
-                               $reason = wfMsgForContent( 'exblank' );
-                       }
-
-                       if( $length < 500 && $reason === '' ) {
-                               # comment field=255, let's grep the first 150 to have some user
-                               # space left
-                               global $wgContLang;
-                               $text = $wgContLang->truncate( $text, 150, '...' );
-
-                               # let's strip out newlines
-                               $text = preg_replace( "/[\n\r]/", '', $text );
-
-                               if( !$blanked ) {
-                                       if( !$all_same_user ) {
-                                               $reason = wfMsgForContent( 'excontent', $text );
-                                       } else {
-                                               $reason = wfMsgForContent( 'excontentauthor', $text, $rev_name );
-                                       }
-                               } else {
-                                       $reason = wfMsgForContent( 'exbeforeblank', $text );
-                               }
-                       }
-               }
-
-               return $this->confirmDelete( '', $reason );
-       }
-
-       /**
-        * Output deletion confirmation dialog
-        */
-       function confirmDelete( $par, $reason ) {
-               global $wgOut, $wgUser;
-
-               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' ) );
-               $delcom = htmlspecialchars( wfMsg( 'deletecomment' ) );
-               $token = htmlspecialchars( $wgUser->editToken() );
-
-               $wgOut->addHTML( "
-<form id='deleteconfirm' method='post' action=\"{$formaction}\">
-       <table border='0'>
-               <tr>
-                       <td align='right'>
-                               <label for='wpReason'>{$delcom}:</label>
-                       </td>
-                       <td align='left'>
-                               <input type='text' size='60' name='wpReason' id='wpReason' value=\"" . htmlspecialchars( $reason ) . "\" />
-                       </td>
-               </tr>
-               <tr>
-                       <td>&nbsp;</td>
-                       <td>
-                               <input type='submit' name='wpConfirmB' value=\"{$confirm}\" />
-                       </td>
-               </tr>
-       </table>
-       <input type='hidden' name='wpEditToken' value=\"{$token}\" />
-</form>\n" );
-
-               $wgOut->returnToMain( false );
-       }
-
-
-       /**
-        * Perform a deletion and output success or failure messages
-        */
-       function doDelete( $reason ) {
-               global $wgOut, $wgUser, $wgContLang;
-               $fname = 'Article::doDelete';
-               wfDebug( $fname."\n" );
-
-               if (wfRunHooks('ArticleDelete', array(&$this, &$wgUser, &$reason))) {
-                       if ( $this->doDeleteArticle( $reason ) ) {
-                               $deleted = $this->mTitle->getPrefixedText();
-
-                               $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
-                               $wgOut->setRobotpolicy( 'noindex,nofollow' );
-
-                               $loglink = '[[Special:Log/delete|' . wfMsg( 'deletionlog' ) . ']]';
-                               $text = wfMsg( 'deletedtext', $deleted, $loglink );
-
-                               $wgOut->addWikiText( $text );
-                               $wgOut->returnToMain( false );
-                               wfRunHooks('ArticleDeleteComplete', array(&$this, &$wgUser, $reason));
-                       } else {
-                               $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
-                       }
-               }
-       }
-
-       /**
-        * Back-end article deletion
-        * Deletes the article with database consistency, writes logs, purges caches
-        * Returns success
-        */
-       function doDeleteArticle( $reason ) {
-               global $wgUser;
-               global $wgUseSquid, $wgDeferredUpdateList, $wgInternalServer, $wgPostCommitUpdateList;
-               global $wgUseTrackbacks;
-
-               $fname = 'Article::doDeleteArticle';
-               wfDebug( $fname."\n" );
-
-               $dbw =& wfGetDB( DB_MASTER );
-               $ns = $this->mTitle->getNamespace();
-               $t = $this->mTitle->getDBkey();
-               $id = $this->mTitle->getArticleID();
-
-               if ( $t == '' || $id == 0 ) {
-                       return false;
-               }
-
-               $u = new SiteStatsUpdate( 0, 1, -$this->isCountable( $this->getContent( true ) ), -1 );
-               array_push( $wgDeferredUpdateList, $u );
-
-               $linksTo = $this->mTitle->getLinksTo();
-
-               # Squid purging
-               if ( $wgUseSquid ) {
-                       $urls = array(
-                               $this->mTitle->getInternalURL(),
-                               $this->mTitle->getInternalURL( 'history' )
-                       );
-
-                       $u = SquidUpdate::newFromTitles( $linksTo, $urls );
-                       array_push( $wgPostCommitUpdateList, $u );
-
-               }
-
-               # Client and file cache invalidation
-               Title::touchArray( $linksTo );
-
-
-               // For now, shunt the revision data into the archive table.
-               // Text is *not* removed from the text table; bulk storage
-               // is left intact to avoid breaking block-compression or
-               // immutable storage schemes.
-               //
-               // For backwards compatibility, note that some older archive
-               // table entries will have ar_text and ar_flags fields still.
-               //
-               // In the future, we may keep revisions and mark them with
-               // the rev_deleted field, which is reserved for this purpose.
-               $dbw->insertSelect( 'archive', array( 'page', 'revision' ),
-                       array(
-                               'ar_namespace'  => 'page_namespace',
-                               'ar_title'      => 'page_title',
-                               'ar_comment'    => 'rev_comment',
-                               'ar_user'       => 'rev_user',
-                               'ar_user_text'  => 'rev_user_text',
-                               'ar_timestamp'  => 'rev_timestamp',
-                               'ar_minor_edit' => 'rev_minor_edit',
-                               'ar_rev_id'     => 'rev_id',
-                               'ar_text_id'    => 'rev_text_id',
-                       ), array(
-                               'page_id' => $id,
-                               'page_id = rev_page'
-                       ), $fname
-               );
-
-               # Now that it's safely backed up, delete it
-               $dbw->delete( 'revision', array( 'rev_page' => $id ), $fname );
-               $dbw->delete( 'page', array( 'page_id' => $id ), $fname);
-
-               if ($wgUseTrackbacks)
-                       $dbw->delete( 'trackbacks', array( 'tb_page' => $id ), $fname );
-
-               # Clean up recentchanges entries...
-               $dbw->delete( 'recentchanges', array( 'rc_namespace' => $ns, 'rc_title' => $t ), $fname );
-
-               # Finally, clean up the link tables
-               $t = $this->mTitle->getPrefixedDBkey();
-
-               Article::onArticleDelete( $this->mTitle );
-
-               # Delete outgoing links
-               $dbw->delete( 'pagelinks', array( 'pl_from' => $id ) );
-               $dbw->delete( 'imagelinks', array( 'il_from' => $id ) );
-               $dbw->delete( 'categorylinks', array( 'cl_from' => $id ) );
-
-               # Log the deletion
-               $log = new LogPage( 'delete' );
-               $log->addEntry( 'delete', $this->mTitle, $reason );
-
-               # Clear the cached article id so the interface doesn't act like we exist
-               $this->mTitle->resetArticleID( 0 );
-               $this->mTitle->mArticleID = 0;
-               return true;
-       }
-
-       /**
-        * Revert a modification
-        */
-       function rollback() {
-               global $wgUser, $wgOut, $wgRequest;
-               $fname = 'Article::rollback';
-
-               if ( ! $wgUser->isAllowed('rollback') ) {
-                       $wgOut->sysopRequired();
-                       return;
-               }
-               if ( wfReadOnly() ) {
-                       $wgOut->readOnlyPage( $this->getContent( true ) );
-                       return;
-               }
-               if( !$wgUser->matchEditToken( $wgRequest->getVal( 'token' ),
-                       array( $this->mTitle->getPrefixedText(),
-                               $wgRequest->getVal( 'from' ) )  ) ) {
-                       $wgOut->setPageTitle( wfMsg( 'rollbackfailed' ) );
-                       $wgOut->addWikiText( wfMsg( 'sessionfailure' ) );
-                       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 = $this->mTitle->getDBKey();
-               $n = $this->mTitle->getNamespace();
-
-               # Get the last editor, lock table exclusively
-               $dbw->begin();
-               $current = Revision::newFromTitle( $this->mTitle );
-               if( is_null( $current ) ) {
-                       # Something wrong... no page?
-                       $dbw->rollback();
-                       $wgOut->addHTML( wfMsg( 'notanarticle' ) );
-                       return;
-               }
-
-               $from = str_replace( '_', ' ', $wgRequest->getVal( 'from' ) );
-               if( $from != $current->getUserText() ) {
-                       $wgOut->setPageTitle(wfmsg('rollbackfailed'));
-                       $wgOut->addWikiText( wfMsg( 'alreadyrolled',
-                               htmlspecialchars( $this->mTitle->getPrefixedText()),
-                               htmlspecialchars( $from ),
-                               htmlspecialchars( $current->getUserText() ) ) );
-                       if( $current->getComment() != '') {
-                               $wgOut->addHTML(
-                                       wfMsg( 'editcomment',
-                                       htmlspecialchars( $current->getComment() ) ) );
-                       }
-                       return;
-               }
-
-               # Get the last edit not by this guy
-               $user = IntVal( $current->getUser() );
-               $user_text = $dbw->addQuotes( $current->getUserText() );
-               $s = $dbw->selectRow( 'revision',
-                       array( 'rev_id', 'rev_timestamp' ),
-                       array(
-                               'rev_page' => $current->getPage(),
-                               "rev_user <> {$user} OR rev_user_text <> {$user_text}"
-                       ), $fname,
-                       array(
-                               'USE INDEX' => 'page_timestamp',
-                               'ORDER BY'  => 'rev_timestamp DESC' )
-                       );
-               if( $s === false ) {
-                       # Something wrong
-                       $dbw->rollback();
-                       $wgOut->setPageTitle(wfMsg('rollbackfailed'));
-                       $wgOut->addHTML( wfMsg( 'cantrollback' ) );
-                       return;
-               }
-
-               if ( $bot ) {
-                       # Mark all reverted edits as bot
-                       $dbw->update( 'recentchanges',
-                               array( /* SET */
-                                       'rc_bot' => 1
-                               ), array( /* WHERE */
-                                       'rc_cur_id'    => $current->getPage(),
-                                       'rc_user_text' => $current->getUserText(),
-                                       "rc_timestamp > '{$s->rev_timestamp}'",
-                               ), $fname
-                       );
-               }
-
-               # Save it!
-               $target = Revision::newFromId( $s->rev_id );
-               $newcomment = wfMsgForContent( 'revertpage', $target->getUserText(), $from );
-
-               $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
-               $wgOut->setRobotpolicy( 'noindex,nofollow' );
-               $wgOut->addHTML( '<h2>' . htmlspecialchars( $newcomment ) . "</h2>\n<hr />\n" );
-
-               $this->updateArticle( $target->getText(), $newcomment, 1, $this->mTitle->userIsWatching(), $bot );
-               Article::onArticleEdit( $this->mTitle );
-
-               $dbw->commit();
-               $wgOut->returnToMain( false );
-       }
-
-
-       /**
-        * Do standard deferred updates after page view
-        * @private
-        */
-       function viewUpdates() {
-               global $wgDeferredUpdateList, $wgUseEnotif;
-
-               if ( 0 != $this->getID() ) {
-                       global $wgDisableCounters;
-                       if( !$wgDisableCounters ) {
-                               Article::incViewCount( $this->getID() );
-                               $u = new SiteStatsUpdate( 1, 0, 0 );
-                               array_push( $wgDeferredUpdateList, $u );
-                       }
-               }
-
-               # Update newtalk status if user is reading their own
-               # talk page
-
-               if (!wfRunHooks('UserClearNewTalkNotification', array(&$this)))
-                       return;
-
-               global $wgUser;
-               if (wfRunHooks('ArticleEditUpdateNewTalk', array(&$this)) ) {
-                       if ($this->mTitle->getNamespace() == NS_USER_TALK &&
-                               $this->mTitle->getText() == $wgUser->getName())
-                       {
-
-                               if ( $wgUseEnotif ) {
-                                       require_once( 'UserTalkUpdate.php' );
-                                       $u = new UserTalkUpdate( 0, $this->mTitle->getNamespace(),
-                                               $this->mTitle->getDBkey(), false, false, false );
-                               } else {
-                                       $wgUser->setNewtalk(0);
-                                       $wgUser->saveNewtalk();
-                               }
-                       } elseif ( $wgUseEnotif ) {
-                               $wgUser->clearNotification( $this->mTitle );
-                       }
-               }
-       }
-
-       /**
-        * Do standard deferred updates after page edit.
-        * Every 1000th edit, prune the recent changes table.
-        * @private
-        * @param string $text
-        */
-       function editUpdates( $text, $summary, $minoredit, $timestamp_of_pagechange) {
-               global $wgDeferredUpdateList, $wgDBname, $wgMemc;
-               global $wgMessageCache, $wgUser, $wgUseEnotif;
-
-               wfSeedRandom();
-               if ( 0 == mt_rand( 0, 999 ) ) {
-                       # Periodically flush old entries from the recentchanges table.
-                       global $wgRCMaxAge;
-                       $dbw =& wfGetDB( DB_MASTER );
-                       $cutoff = $dbw->timestamp( time() - $wgRCMaxAge );
-                       $recentchanges = $dbw->tableName( 'recentchanges' );
-                       $sql = "DELETE FROM $recentchanges WHERE rc_timestamp < '{$cutoff}'";
-                       //$dbw->query( $sql ); // HACK: disabled for now, slowness
-
-                       // re-enabled for commit of unrelated live changes -- TS
-                       $dbw->query( $sql );
-               }
-               $id = $this->getID();
-               $title = $this->mTitle->getPrefixedDBkey();
-               $shortTitle = $this->mTitle->getDBkey();
-
-               if ( 0 != $id ) {
-                       $u = new LinksUpdate( $id, $title );
-                       array_push( $wgDeferredUpdateList, $u );
-                       $u = new SiteStatsUpdate( 0, 1, $this->mGoodAdjustment, $this->mTotalAdjustment );
-                       array_push( $wgDeferredUpdateList, $u );
-                       $u = new SearchUpdate( $id, $title, $text );
-                       array_push( $wgDeferredUpdateList, $u );
-
-                       # If this is another user's talk page, update newtalk
-
-                       if ($this->mTitle->getNamespace() == NS_USER_TALK && $shortTitle != $wgUser->getName()) {
-                               if ( $wgUseEnotif ) {
-                                       require_once( 'UserTalkUpdate.php' );
-                                       $u = new UserTalkUpdate( 1, $this->mTitle->getNamespace(), $shortTitle, $summary,
-                                         $minoredit, $timestamp_of_pagechange);
-                               } else {
-                                       $other = User::newFromName( $shortTitle );
-                                       if( is_null( $other ) && User::isIP( $shortTitle ) ) {
-                                               // An anonymous user
-                                               $other = new User();
-                                               $other->setName( $shortTitle );
-                                       }
-                                       if( $other ) {
-                                               $other->setNewtalk(1);
-                                               $other->saveNewtalk();
-                                       }
-                               }
-                       }
-
-                       if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
-                               $wgMessageCache->replace( $shortTitle, $text );
-                       }
-               }
-       }
-
-       /**
-        * Generate the navigation links when browsing through an article revisions
-        * It shows the information as:
-        *   Revision as of <date>; view current revision
-        *   <- Previous version | Next Version ->
-        *
-        * @access private
-        * @param string $oldid         Revision ID of this article revision
-        */
-       function setOldSubtitle( $oldid=0 ) {
-               global $wgLang, $wgOut, $wgUser;
-
-               $current = ( $oldid == $this->mLatest );
-               $td = $wgLang->timeanddate( $this->mTimestamp, true );
-               $sk = $wgUser->getSkin();
-               $lnk = $current
-                       ? wfMsg( 'currentrevisionlink' )
-                       : $lnk = $sk->makeKnownLinkObj( $this->mTitle, wfMsg( 'currentrevisionlink' ) );
-               $prev = $this->mTitle->getPreviousRevisionID( $oldid ) ;
-               $prevlink = $prev
-                       ? $sk->makeKnownLinkObj( $this->mTitle, wfMsg( 'previousrevision' ), 'direction=prev&oldid='.$oldid )
-                       : wfMsg( 'previousrevision' );
-               $nextlink = $current
-                       ? wfMsg( 'nextrevision' )
-                       : $sk->makeKnownLinkObj( $this->mTitle, wfMsg( 'nextrevision' ), 'direction=next&oldid='.$oldid );
-               $r = wfMsg( 'revisionasofwithlink', $td, $lnk, $prevlink, $nextlink );
-               $wgOut->setSubtitle( $r );
-       }
-
-       /**
-        * This function is called right before saving the wikitext,
-        * so we can do things like signatures and links-in-context.
-        *
-        * @param string $text
-        */
-       function preSaveTransform( $text ) {
-               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
-        * output to the client that is necessary for this request.
-        * (that is, it has sent a cached version of the page)
-        */
-       function tryFileCache() {
-               static $called = false;
-               if( $called ) {
-                       wfDebug( " tryFileCache() -- called twice!?\n" );
-                       return;
-               }
-               $called = true;
-               if($this->isFileCacheable()) {
-                       $touched = $this->mTouched;
-                       $cache = new CacheManager( $this->mTitle );
-                       if($cache->isFileCacheGood( $touched )) {
-                               global $wgOut;
-                               wfDebug( " tryFileCache() - about to load\n" );
-                               $cache->loadFromFileCache();
-                               return true;
-                       } else {
-                               wfDebug( " tryFileCache() - starting buffer\n" );
-                               ob_start( array(&$cache, 'saveToFileCache' ) );
-                       }
-               } else {
-                       wfDebug( " tryFileCache() - not cacheable\n" );
-               }
-       }
-
-       /**
-        * Check if the page can be cached
-        * @return bool
-        */
-       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->isAnon())
-                       and (!$wgUser->getNewtalk())
-                       and ($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() {
-               $fname = 'Article::checkTouched';
-               if( !$this->mDataLoaded ) {
-                       $dbr =& $this->getDB();
-                       $data = $this->pageDataFromId( $dbr, $this->getId() );
-                       if( $data ) {
-                               $this->loadPageData( $data );
-                       }
-               }
-               return !$this->mIsRedirect;
-       }
-
-       /**
-        * Edit an article without doing all that other stuff
-        * The article must already exist; link tables etc
-        * are not updated, caches are not flushed.
-        *
-        * @param string $text text submitted
-        * @param string $comment comment submitted
-        * @param bool $minor whereas it's a minor modification
-        */
-       function quickEdit( $text, $comment = '', $minor = 0 ) {
-               $fname = 'Article::quickEdit';
-               wfProfileIn( $fname );
-
-               $dbw =& wfGetDB( DB_MASTER );
-               $dbw->begin();
-               $revision = new Revision( array(
-                       'page'       => $this->getId(),
-                       'text'       => $text,
-                       'comment'    => $comment,
-                       'minor_edit' => $minor ? 1 : 0,
-                       ) );
-               $revisionId = $revision->insertOn( $dbw );
-               $this->updateRevisionOn( $dbw, $revision );
-               $dbw->commit();
-
-               wfProfileOut( $fname );
-       }
-
-       /**
-        * Used to increment the view counter
-        *
-        * @static
-        * @param integer $id article id
-        */
-       function incViewCount( $id ) {
-               $id = intval( $id );
-               global $wgHitcounterUpdateFreq;
-
-               $dbw =& wfGetDB( DB_MASTER );
-               $pageTable = $dbw->tableName( 'page' );
-               $hitcounterTable = $dbw->tableName( 'hitcounter' );
-               $acchitsTable = $dbw->tableName( 'acchits' );
-
-               if( $wgHitcounterUpdateFreq <= 1 ){ //
-                       $dbw->query( "UPDATE $pageTable SET page_counter = page_counter + 1 WHERE page_id = $id" );
-                       return;
-               }
-
-               # Not important enough to warrant an error page in case of failure
-               $oldignore = $dbw->ignoreErrors( true );
-
-               $dbw->query( "INSERT INTO $hitcounterTable (hc_id) VALUES ({$id})" );
-
-               $checkfreq = intval( $wgHitcounterUpdateFreq/25 + 1 );
-               if( (rand() % $checkfreq != 0) or ($dbw->lastErrno() != 0) ){
-                       # Most of the time (or on SQL errors), skip row count check
-                       $dbw->ignoreErrors( $oldignore );
-                       return;
-               }
-
-               $res = $dbw->query("SELECT COUNT(*) as n FROM $hitcounterTable");
-               $row = $dbw->fetchObject( $res );
-               $rown = intval( $row->n );
-               if( $rown >= $wgHitcounterUpdateFreq ){
-                       wfProfileIn( 'Article::incViewCount-collect' );
-                       $old_user_abort = ignore_user_abort( true );
-
-                       $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 $pageTable,$acchitsTable SET page_counter=page_counter + hc_n ".
-                               'WHERE page_id = hc_id');
-                       $dbw->query("DROP TABLE $acchitsTable");
-
-                       ignore_user_abort( $old_user_abort );
-                       wfProfileOut( 'Article::incViewCount-collect' );
-               }
-               $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.
-        *
-        * 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
-        * @static
-        * @param $title_obj a title object
-        */
-
-       function onArticleCreate($title_obj) {
-               global $wgUseSquid, $wgPostCommitUpdateList;
-
-               $title_obj->touchLinks();
-               $titles = $title_obj->getLinksTo();
-
-               # Purge squid
-               if ( $wgUseSquid ) {
-                       $urls = $title_obj->getSquidURLs();
-                       foreach ( $titles as $linkTitle ) {
-                               $urls[] = $linkTitle->getInternalURL();
-                       }
-                       $u = new SquidUpdate( $urls );
-                       array_push( $wgPostCommitUpdateList, $u );
-               }
-       }
-
-       function onArticleDelete( $title ) {
-               global $wgMessageCache;
-               
-               $title->touchLinks();
-               
-               if( $title->getNamespace() == NS_MEDIAWIKI) {
-                       $wgMessageCache->replace( $title->getDBkey(), false );
-               }
-       }
-
-       function onArticleEdit($title_obj) {
-               // This would be an appropriate place to purge caches.
-               // Why's this not in here now?
-       }
-
-       /**#@-*/
-
-       /**
-        * Info about this page
-        * Called for ?action=info when $wgAllowPageInfo is on.
-        *
-        * @access public
-        */
-       function info() {
-               global $wgLang, $wgOut, $wgAllowPageInfo;
-               $fname = 'Article::info';
-
-               if ( !$wgAllowPageInfo ) {
-                       $wgOut->errorpage( 'nosuchaction', 'nosuchactiontext' );
-                       return;
-               }
-
-               $page = $this->mTitle->getSubjectPage();
-
-               $wgOut->setPagetitle( $page->getPrefixedText() );
-               $wgOut->setSubtitle( wfMsg( 'infosubtitle' ));
-
-               # first, see if the page exists at all.
-               $exists = $page->getArticleId() != 0;
-               if( !$exists ) {
-                       $wgOut->addHTML( wfMsg('noarticletext') );
-               } else {
-                       $dbr =& $this->getDB( DB_SLAVE );
-                       $wl_clause = array(
-                               'wl_title'     => $page->getDBkey(),
-                               'wl_namespace' => $page->getNamespace() );
-                       $numwatchers = $dbr->selectField(
-                               'watchlist',
-                               'COUNT(*)',
-                               $wl_clause,
-                               $fname,
-                               $this->getSelectOptions() );
-
-                       $pageInfo = $this->pageCountInfo( $page );
-                       $talkInfo = $this->pageCountInfo( $page->getTalkPage() );
-
-                       $wgOut->addHTML( "<ul><li>" . wfMsg("numwatchers", $wgLang->formatNum( $numwatchers ) ) . '</li>' );
-                       $wgOut->addHTML( "<li>" . wfMsg('numedits', $wgLang->formatNum( $pageInfo['edits'] ) ) . '</li>');
-                       if( $talkInfo ) {
-                               $wgOut->addHTML( '<li>' . wfMsg("numtalkedits", $wgLang->formatNum( $talkInfo['edits'] ) ) . '</li>');
-                       }
-                       $wgOut->addHTML( '<li>' . wfMsg("numauthors", $wgLang->formatNum( $pageInfo['authors'] ) ) . '</li>' );
-                       if( $talkInfo ) {
-                               $wgOut->addHTML( '<li>' . wfMsg('numtalkauthors', $wgLang->formatNum( $talkInfo['authors'] ) ) . '</li>' );
-                       }
-                       $wgOut->addHTML( '</ul>' );
-
-               }
-       }
-
-       /**
-        * Return the total number of edits and number of unique editors
-        * on a given page. If page does not exist, returns false.
-        *
-        * @param Title $title
-        * @return array
-        * @access private
-        */
-       function pageCountInfo( $title ) {
-               $id = $title->getArticleId();
-               if( $id == 0 ) {
-                       return false;
-               }
-
-               $dbr =& $this->getDB( DB_SLAVE );
-
-               $rev_clause = array( 'rev_page' => $id );
-               $fname = 'Article::pageCountInfo';
-
-               $edits = $dbr->selectField(
-                       'revision',
-                       'COUNT(rev_page)',
-                       $rev_clause,
-                       $fname,
-                       $this->getSelectOptions() );
-
-               $authors = $dbr->selectField(
-                       'revision',
-                       'COUNT(DISTINCT rev_user_text)',
-                       $rev_clause,
-                       $fname,
-                       $this->getSelectOptions() );
-
-               return array( 'edits' => $edits, 'authors' => $authors );
-       }
-
-       /**
-        * Return a list of templates used by this article.
-        * Uses the links table to find the templates
-        *
-        * @return array
-        */
-       function getUsedTemplates() {
-               $result = array();
-               $id = $this->mTitle->getArticleID();
-
-               $db =& wfGetDB( DB_SLAVE );
-               $res = $db->select( array( 'pagelinks' ),
-                       array( 'pl_title' ),
-                       array(
-                               'pl_from' => $id,
-                               'pl_namespace' => NS_TEMPLATE ),
-                       'Article:getUsedTemplates' );
-               if ( false !== $res ) {
-                       if ( $db->numRows( $res ) ) {
-                               while ( $row = $db->fetchObject( $res ) ) {
-                                       $result[] = $row->pl_title;
-                               }
-                       }
-               }
-               $db->freeResult( $res );
-               return $result;
-       }
-}
-
-?>