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+<?php
+/**
+ * File for articles
+ * @package MediaWiki
+ */
+
+/**
+ * Need the CacheManager to be loaded
+ */
+require_once( 'CacheManager.php' );
+
+/**
+ * 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 {
+ /**@{{
+ * @private
+ */
+ var $mComment; //!<
+ var $mContent; //!<
+ var $mContentLoaded; //!<
+ var $mCounter; //!<
+ var $mForUpdate; //!<
+ var $mGoodAdjustment; //!<
+ var $mLatest; //!<
+ var $mMinorEdit; //!<
+ var $mOldId; //!<
+ var $mRedirectedFrom; //!<
+ var $mRedirectUrl; //!<
+ var $mRevIdFetched; //!<
+ var $mRevision; //!<
+ var $mTimestamp; //!<
+ var $mTitle; //!<
+ var $mTotalAdjustment; //!<
+ var $mTouched; //!<
+ var $mUser; //!<
+ var $mUserText; //!<
+ /**@}}*/
+
+ /**
+ * Constructor and clear the article
+ * @param $title Reference to a Title object.
+ * @param $oldId Integer revision ID, null to fetch from request, zero for current
+ */
+ function Article( &$title, $oldId = null ) {
+ $this->mTitle =& $title;
+ $this->mOldId = $oldId;
+ $this->clear();
+ }
+
+ /**
+ * Tell the page view functions that this view was redirected
+ * from another page on the wiki.
+ * @param $from Title object.
+ */
+ function setRedirectedFrom( $from ) {
+ $this->mRedirectedFrom = $from;
+ }
+
+ /**
+ * @return mixed false, Title of in-wiki target, or string with URL
+ */
+ function followRedirect() {
+ $text = $this->getContent();
+ $rt = Title::newFromRedirect( $text );
+
+ # process if title object is valid and not special:userlogout
+ if( $rt ) {
+ if( $rt->getInterwiki() != '' ) {
+ if( $rt->isLocal() ) {
+ // Offsite wikis need an HTTP redirect.
+ //
+ // This can be hard to reverse and may produce loops,
+ // so they may be disabled in the site configuration.
+
+ $source = $this->mTitle->getFullURL( 'redirect=no' );
+ return $rt->getFullURL( 'rdfrom=' . urlencode( $source ) );
+ }
+ } else {
+ if( $rt->getNamespace() == NS_SPECIAL ) {
+ // Gotta hand redirects to special pages differently:
+ // Fill the HTTP response "Location" header and ignore
+ // the rest of the page we're on.
+ //
+ // This can be hard to reverse, so they may be disabled.
+
+ if( $rt->getNamespace() == NS_SPECIAL && $rt->getText() == 'Userlogout' ) {
+ // rolleyes
+ } else {
+ return $rt->getFullURL();
+ }
+ }
+ return $rt;
+ }
+ }
+
+ // No or invalid redirect
+ return false;
+ }
+
+ /**
+ * get the title object of the article
+ */
+ 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 = null; # Title object if set
+ $this->mUserText =
+ $this->mTimestamp = $this->mComment = '';
+ $this->mGoodAdjustment = $this->mTotalAdjustment = 0;
+ $this->mTouched = '19700101000000';
+ $this->mForUpdate = false;
+ $this->mIsRedirect = false;
+ $this->mRevIdFetched = 0;
+ $this->mRedirectUrl = false;
+ $this->mLatest = false;
+ }
+
+ /**
+ * Note that getContent/loadContent do not follow redirects anymore.
+ * If you need to fetch redirectable content easily, try
+ * the shortcut in Article::followContent()
+ * FIXME
+ * @todo There are still side-effects in this!
+ * In general, you should use the Revision class, not Article,
+ * to fetch text for purposes other than page views.
+ *
+ * @return Return the text of this revision
+ */
+ function getContent() {
+ global $wgRequest, $wgUser, $wgOut;
+
+ wfProfileIn( __METHOD__ );
+
+ if ( 0 == $this->getID() ) {
+ wfProfileOut( __METHOD__ );
+ $wgOut->setRobotpolicy( 'noindex,nofollow' );
+
+ if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
+ $ret = wfMsgWeirdKey ( $this->mTitle->getText() ) ;
+ } else {
+ $ret = wfMsg( $wgUser->isLoggedIn() ? 'noarticletext' : 'noarticletextanon' );
+ }
+
+ return "<div class='noarticletext'>$ret</div>";
+ } else {
+ $this->loadContent();
+ wfProfileOut( __METHOD__ );
+ return $this->mContent;
+ }
+ }
+
+ /**
+ * This function returns the text of a section, specified by a number ($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 $text String: text to look in
+ * @param $section Integer: section number
+ * @return string text of the requested section
+ * @deprecated
+ */
+ function getSection($text,$section) {
+ global $wgParser;
+ return $wgParser->getSection( $text, $section );
+ }
+
+ /**
+ * @return int The oldid of the article that is to be shown, 0 for the
+ * current revision
+ */
+ function getOldID() {
+ if ( is_null( $this->mOldId ) ) {
+ $this->mOldId = $this->getOldIDFromRequest();
+ }
+ return $this->mOldId;
+ }
+
+ /**
+ * Sets $this->mRedirectUrl to a correct URL if the query parameters are incorrect
+ *
+ * @return int The old id for the request
+ */
+ function getOldIDFromRequest() {
+ global $wgRequest;
+ $this->mRedirectUrl = false;
+ $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 {
+ $this->mRedirectUrl = $this->mTitle->getFullURL( 'redirect=no' );
+ }
+ } elseif ( $wgRequest->getVal( 'direction' ) == 'prev' ) {
+ $previd = $this->mTitle->getPreviousRevisionID( $oldid );
+ if ( $previd ) {
+ $oldid = $previd;
+ } else {
+ # TODO
+ }
+ }
+ # unused:
+ # $lastid = $oldid;
+ }
+
+ if ( !$oldid ) {
+ $oldid = 0;
+ }
+ return $oldid;
+ }
+
+ /**
+ * Load the revision (including text) into this object
+ */
+ function loadContent() {
+ if ( $this->mContentLoaded ) return;
+
+ # Query variables :P
+ $oldid = $this->getOldID();
+
+ # Pre-fill content with error message so that if something
+ # fails we'll have something telling us what we intended.
+
+ $t = $this->mTitle->getPrefixedText();
+
+ $this->mOldId = $oldid;
+ $this->fetchContent( $oldid );
+ }
+
+
+ /**
+ * Fetch a page record with the given conditions
+ * @param Database $dbr
+ * @param array $conditions
+ * @private
+ */
+ function pageData( &$dbr, $conditions ) {
+ $fields = array(
+ 'page_id',
+ 'page_namespace',
+ 'page_title',
+ 'page_restrictions',
+ 'page_counter',
+ 'page_is_redirect',
+ 'page_is_new',
+ 'page_random',
+ 'page_touched',
+ 'page_latest',
+ 'page_len' ) ;
+ wfRunHooks( 'ArticlePageDataBefore', array( &$this , &$fields ) ) ;
+ $row = $dbr->selectRow( 'page',
+ $fields,
+ $conditions,
+ 'Article::pageData' );
+ wfRunHooks( 'ArticlePageDataAfter', array( &$this , &$row ) ) ;
+ return $row ;
+ }
+
+ /**
+ * @param Database $dbr
+ * @param Title $title
+ */
+ function pageDataFromTitle( &$dbr, $title ) {
+ return $this->pageData( $dbr, array(
+ 'page_namespace' => $title->getNamespace(),
+ 'page_title' => $title->getDBkey() ) );
+ }
+
+ /**
+ * @param Database $dbr
+ * @param int $id
+ */
+ function pageDataFromId( &$dbr, $id ) {
+ return $this->pageData( $dbr, array( 'page_id' => $id ) );
+ }
+
+ /**
+ * Set the general counter, title etc data loaded from
+ * some source.
+ *
+ * @param object $data
+ * @private
+ */
+ function loadPageData( $data = 'fromdb' ) {
+ if ( $data === 'fromdb' ) {
+ $dbr =& $this->getDB();
+ $data = $this->pageDataFromId( $dbr, $this->getId() );
+ }
+
+ $lc =& LinkCache::singleton();
+ if ( $data ) {
+ $lc->addGoodLinkObj( $data->page_id, $this->mTitle );
+
+ $this->mTitle->mArticleID = $data->page_id;
+ $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;
+ } else {
+ if ( is_object( $this->mTitle ) ) {
+ $lc->addBadLinkObj( $this->mTitle );
+ }
+ $this->mTitle->mArticleID = 0;
+ }
+
+ $this->mDataLoaded = true;
+ }
+
+ /**
+ * Get text of an article from database
+ * Does *NOT* follow redirects.
+ * @param int $oldid 0 for whatever the latest revision is
+ * @return string
+ */
+ function fetchContent( $oldid = 0 ) {
+ if ( $this->mContentLoaded ) {
+ return $this->mContent;
+ }
+
+ $dbr =& $this->getDB();
+
+ # 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;
+ }
+ $this->mContent = wfMsg( 'missingarticle', $t ) ;
+
+ if( $oldid ) {
+ $revision = Revision::newFromId( $oldid );
+ if( is_null( $revision ) ) {
+ wfDebug( __METHOD__." failed to retrieve specified revision, id $oldid\n" );
+ return false;
+ }
+ $data = $this->pageDataFromId( $dbr, $revision->getPage() );
+ if( !$data ) {
+ wfDebug( __METHOD__." 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( __METHOD__." failed to find page data for title " . $this->mTitle->getPrefixedText() . "\n" );
+ return false;
+ }
+ $this->loadPageData( $data );
+ }
+ $revision = Revision::newFromId( $this->mLatest );
+ if( is_null( $revision ) ) {
+ wfDebug( __METHOD__." failed to retrieve current page, rev_id {$data->page_latest}\n" );
+ return false;
+ }
+ }
+
+ // FIXME: Horrible, horrible! This content-loading interface just plain sucks.
+ // We should instead work with the Revision object when we need it...
+ $this->mContent = $revision->userCan( Revision::DELETED_TEXT ) ? $revision->getRawText() : "";
+ //$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 =& $revision;
+
+ wfRunHooks( 'ArticleAfterFetchContent', array( &$this, &$this->mContent ) ) ;
+
+ return $this->mContent;
+ }
+
+ /**
+ * Read/write accessor to select FOR UPDATE
+ *
+ * @param $x Mixed: FIXME
+ */
+ function forUpdate( $x = NULL ) {
+ return wfSetVar( $this->mForUpdate, $x );
+ }
+
+ /**
+ * Get the database which should be used for reads
+ *
+ * @return Database
+ */
+ function &getDB() {
+ $ret =& wfGetDB( DB_MASTER );
+ return $ret;
+ }
+
+ /**
+ * Get options for all SELECT statements
+ *
+ * @param $options Array: an optional options array which'll be appended to
+ * the default
+ * @return Array: options
+ */
+ function getSelectOptions( $options = '' ) {
+ if ( $this->mForUpdate ) {
+ if ( is_array( $options ) ) {
+ $options[] = 'FOR UPDATE';
+ } else {
+ $options = 'FOR UPDATE';
+ }
+ }
+ return $options;
+ }
+
+ /**
+ * @return int Page ID
+ */
+ function getID() {
+ if( $this->mTitle ) {
+ return $this->mTitle->getArticleID();
+ } else {
+ return 0;
+ }
+ }
+
+ /**
+ * @return bool Whether or not the page exists in the database
+ */
+ function exists() {
+ return $this->getId() != 0;
+ }
+
+ /**
+ * @return int The view count for the page
+ */
+ function getCount() {
+ if ( -1 == $this->mCounter ) {
+ $id = $this->getID();
+ if ( $id == 0 ) {
+ $this->mCounter = 0;
+ } else {
+ $dbr =& wfGetDB( DB_SLAVE );
+ $this->mCounter = $dbr->selectField( 'page', 'page_counter', array( 'page_id' => $id ),
+ 'Article::getCount', $this->getSelectOptions() );
+ }
+ }
+ return $this->mCounter;
+ }
+
+ /**
+ * Determine whether a page would be suitable for being counted as an
+ * article in the site_stats table based on the title & its content
+ *
+ * @param $text String: text to analyze
+ * @return bool
+ */
+ function isCountable( $text ) {
+ global $wgUseCommaCount, $wgContentNamespaces;
+
+ $token = $wgUseCommaCount ? ',' : '[[';
+ return
+ array_search( $this->mTitle->getNamespace(), $wgContentNamespaces ) !== false
+ && ! $this->isRedirect( $text )
+ && in_string( $token, $text );
+ }
+
+ /**
+ * Tests if the article text represents a redirect
+ *
+ * @param $text String: FIXME
+ * @return bool
+ */
+ 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() {
+ 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();
+ $this->mRevIdFetched = $this->mLastRevision->getID();
+ }
+ }
+
+ function getTimestamp() {
+ // Check if the field has been filled by ParserCache::get()
+ if ( !$this->mTimestamp ) {
+ $this->loadLastEdit();
+ }
+ return wfTimestamp(TS_MW, $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;
+ }
+
+ /**
+ * @todo Document, fixme $offset never used.
+ * @param $limit Integer: default 0.
+ * @param $offset Integer: default 0.
+ */
+ function getContributors($limit = 0, $offset = 0) {
+ # XXX: this is expensive; cache this info somewhere.
+
+ $title = $this->mTitle;
+ $contribs = array();
+ $dbr =& wfGetDB( DB_SLAVE );
+ $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, __METHOD__);
+
+ 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, $wgContLang;
+ global $wgEnableParserCache, $wgStylePath, $wgUseRCPatrol, $wgParser;
+ global $wgUseTrackbacks, $wgNamespaceRobotPolicies;
+ $sk = $wgUser->getSkin();
+
+ wfProfileIn( __METHOD__ );
+
+ $parserCache =& ParserCache::singleton();
+ $ns = $this->mTitle->getNamespace(); # shortcut
+
+ # Get variables from query string
+ $oldid = $this->getOldID();
+
+ # getOldID may want us to redirect somewhere else
+ if ( $this->mRedirectUrl ) {
+ $wgOut->redirect( $this->mRedirectUrl );
+ wfProfileOut( __METHOD__ );
+ return;
+ }
+
+ $diff = $wgRequest->getVal( 'diff' );
+ $rcid = $wgRequest->getVal( 'rcid' );
+ $rdfrom = $wgRequest->getVal( 'rdfrom' );
+
+ $wgOut->setArticleFlag( true );
+ if ( isset( $wgNamespaceRobotPolicies[$ns] ) ) {
+ $policy = $wgNamespaceRobotPolicies[$ns];
+ } else {
+ $policy = 'index,follow';
+ }
+ $wgOut->setRobotpolicy( $policy );
+
+ # 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( $this->mTitle, $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( __METHOD__ );
+ return;
+ }
+
+ if ( empty( $oldid ) && $this->checkTouched() ) {
+ $wgOut->setETag($parserCache->getETag($this, $wgUser));
+
+ if( $wgOut->checkLastModified( $this->mTouched ) ){
+ wfProfileOut( __METHOD__ );
+ return;
+ } else if ( $this->tryFileCache() ) {
+ # tell wgOut that output is taken care of
+ $wgOut->disable();
+ $this->viewUpdates();
+ wfProfileOut( __METHOD__ );
+ 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" );
+ if ( $wgUser->getOption( 'stubthreshold' ) ) {
+ wfIncrStats( 'pcache_miss_stub' );
+ }
+
+ $wasRedirected = false;
+ if ( isset( $this->mRedirectedFrom ) ) {
+ // This is an internally redirected page view.
+ // We'll need a backlink to the source page for navigation.
+ if ( wfRunHooks( 'ArticleViewRedirect', array( &$this ) ) ) {
+ $sk = $wgUser->getSkin();
+ $redir = $sk->makeKnownLinkObj( $this->mRedirectedFrom, '', 'redirect=no' );
+ $s = wfMsg( 'redirectedfrom', $redir );
+ $wgOut->setSubtitle( $s );
+ $wasRedirected = true;
+ }
+ } elseif ( !empty( $rdfrom ) ) {
+ // This is an externally redirected view, from some other wiki.
+ // If it was reported from a trusted site, supply a backlink.
+ global $wgRedirectSources;
+ if( $wgRedirectSources && preg_match( $wgRedirectSources, $rdfrom ) ) {
+ $sk = $wgUser->getSkin();
+ $redir = $sk->makeExternalLink( $rdfrom, $rdfrom );
+ $s = wfMsg( 'redirectedfrom', $redir );
+ $wgOut->setSubtitle( $s );
+ $wasRedirected = true;
+ }
+ }
+
+ $outputDone = false;
+ if ( $pcache ) {
+ if ( $wgOut->tryParserCache( $this, $wgUser ) ) {
+ $outputDone = true;
+ }
+ }
+ if ( !$outputDone ) {
+ $text = $this->getContent();
+ if ( $text === false ) {
+ # Failed to load, replace text with error message
+ $t = $this->mTitle->getPrefixedText();
+ if( $oldid ) {
+ $t .= ',oldid='.$oldid;
+ $text = wfMsg( 'missingarticle', $t );
+ } else {
+ $text = wfMsg( 'noarticletext', $t );
+ }
+ }
+
+ # Another whitelist check in case oldid is altering the title
+ if ( !$this->mTitle->userCanRead() ) {
+ $wgOut->loginToUse();
+ $wgOut->output();
+ exit;
+ }
+
+ # We're looking at an old revision
+
+ if ( !empty( $oldid ) ) {
+ $wgOut->setRobotpolicy( 'noindex,nofollow' );
+ if( is_null( $this->mRevision ) ) {
+ // FIXME: This would be a nice place to load the 'no such page' text.
+ } else {
+ $this->setOldSubtitle( isset($this->mOldId) ? $this->mOldId : $oldid );
+ if( $this->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
+ if( !$this->mRevision->userCan( Revision::DELETED_TEXT ) ) {
+ $wgOut->addWikiText( wfMsg( 'rev-deleted-text-permission' ) );
+ $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
+ return;
+ } else {
+ $wgOut->addWikiText( wfMsg( 'rev-deleted-text-view' ) );
+ // and we are allowed to see...
+ }
+ }
+ }
+
+ }
+ }
+ if( !$outputDone ) {
+ /**
+ * @fixme: this hook doesn't work most of the time, as it doesn't
+ * trigger when the parser cache is used.
+ */
+ wfRunHooks( 'ArticleViewHeader', array( &$this ) ) ;
+ $wgOut->setRevisionId( $this->getRevIdFetched() );
+ # 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 (
+ $ns == NS_USER &&
+ preg_match('/\\/[\\w]+\\.(css|js)$/', $this->mTitle->getDBkey())
+ ) {
+ $wgOut->addWikiText( wfMsg('clearyourcache'));
+ $wgOut->addHTML( '<pre>'.htmlspecialchars($this->mContent)."\n</pre>" );
+ } else if ( $rt = Title::newFromRedirect( $text ) ) {
+ # Display redirect
+ $imageDir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
+ $imageUrl = $wgStylePath.'/common/images/redirect' . $imageDir . '.png';
+ # Don't overwrite the subtitle if this was an old revision
+ if( !$wasRedirected && $this->isCurrent() ) {
+ $wgOut->setSubtitle( wfMsgHtml( 'redirectpagesub' ) );
+ }
+ $targetUrl = $rt->escapeLocalURL();
+ # fixme unused $titleText :
+ $titleText = htmlspecialchars( $rt->getPrefixedText() );
+ $link = $sk->makeLinkObj( $rt );
+
+ $wgOut->addHTML( '<img src="'.$imageUrl.'" alt="#REDIRECT" />' .
+ '<span class="redirectText">'.$link.'</span>' );
+
+ $parseout = $wgParser->parse($text, $this->mTitle, ParserOptions::newFromUser($wgUser));
+ $wgOut->addParserOutputNoText( $parseout );
+ } 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 );
+ }
+ # Display content and don't save to parser cache
+ $wgOut->addPrimaryWikiText( $text, $this, false );
+
+ if( !$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() );
+ }
+
+ # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
+ if( $ns == NS_USER_TALK &&
+ User::isIP( $this->mTitle->getText() ) ) {
+ $wgOut->addWikiText( wfMsg('anontalkpagetext') );
+ }
+
+ # 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->isAllowed( 'patrol' ) ) {
+ $wgOut->addHTML(
+ "<div class='patrollink'>" .
+ wfMsg ( 'markaspatrolledlink',
+ $sk->makeKnownLinkObj( $this->mTitle, wfMsg('markaspatrolledtext'), "action=markpatrolled&rcid=$rcid" )
+ ) .
+ '</div>'
+ );
+ }
+
+ # Trackbacks
+ if ($wgUseTrackbacks)
+ $this->addTrackbacks();
+
+ $this->viewUpdates();
+ wfProfileOut( __METHOD__ );
+ }
+
+ 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->isAllowed( 'trackback' )) {
+ $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();
+ }
+
+ /**
+ * Handle action=purge
+ */
+ function purge() {
+ global $wgUser, $wgRequest, $wgOut;
+
+ if ( $wgUser->isLoggedIn() || $wgRequest->wasPosted() ) {
+ if( wfRunHooks( 'ArticlePurge', array( &$this ) ) ) {
+ $this->doPurge();
+ }
+ } else {
+ $msg = $wgOut->parse( wfMsg( 'confirm_purge' ) );
+ $action = $this->mTitle->escapeLocalURL( 'action=purge' );
+ $button = htmlspecialchars( wfMsg( 'confirm_purge_button' ) );
+ $msg = str_replace( '$1',
+ "<form method=\"post\" action=\"$action\">\n" .
+ "<input type=\"submit\" name=\"submit\" value=\"$button\" />\n" .
+ "</form>\n", $msg );
+
+ $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
+ $wgOut->setRobotpolicy( 'noindex,nofollow' );
+ $wgOut->addHTML( $msg );
+ }
+ }
+
+ /**
+ * Perform the actions of a page purging
+ */
+ function doPurge() {
+ global $wgUseSquid;
+ // Invalidate the cache
+ $this->mTitle->invalidateCache();
+
+ if ( $wgUseSquid ) {
+ // Commit the transaction before the purge is sent
+ $dbw = wfGetDB( DB_MASTER );
+ $dbw->immediateCommit();
+
+ // Send purge
+ $update = SquidUpdate::newSimplePurge( $this->mTitle );
+ $update->doUpdate();
+ }
+ $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 $restrictions
+ * @return int The newly created page_id key
+ * @private
+ */
+ function insertOn( &$dbw, $restrictions = '' ) {
+ wfProfileIn( __METHOD__ );
+
+ $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...
+ ), __METHOD__ );
+ $newid = $dbw->insertId();
+
+ $this->mTitle->resetArticleId( $newid );
+
+ wfProfileOut( __METHOD__ );
+ 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 $lastRevision If given, will not overwrite the page field
+ * when different from the currently set value.
+ * Giving 0 indicates the new page flag should
+ * be set on.
+ * @return bool true on success, false on failure
+ * @private
+ */
+ function updateRevisionOn( &$dbw, $revision, $lastRevision = null ) {
+ wfProfileIn( __METHOD__ );
+
+ $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,
+ __METHOD__ );
+
+ wfProfileOut( __METHOD__ );
+ 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 ) {
+ wfProfileIn( __METHOD__ );
+
+ $row = $dbw->selectRow(
+ array( 'revision', 'page' ),
+ array( 'rev_id', 'rev_timestamp' ),
+ array(
+ 'page_id' => $this->getId(),
+ 'page_latest=rev_id' ),
+ __METHOD__ );
+ if( $row ) {
+ if( wfTimestamp(TS_MW, $row->rev_timestamp) >= $revision->getTimestamp() ) {
+ wfProfileOut( __METHOD__ );
+ 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( __METHOD__ );
+ return $ret;
+ }
+
+ /**
+ * @return string Complete article text, or null if error
+ */
+ function replaceSection($section, $text, $summary = '', $edittime = NULL) {
+ wfProfileIn( __METHOD__ );
+
+ if( $section == '' ) {
+ // Whole-page edit; let the text through unmolested.
+ } else {
+ if( is_null( $edittime ) ) {
+ $rev = Revision::newFromTitle( $this->mTitle );
+ } else {
+ $dbw =& wfGetDB( DB_MASTER );
+ $rev = Revision::loadFromTimestamp( $dbw, $this->mTitle, $edittime );
+ }
+ if( is_null( $rev ) ) {
+ wfDebug( "Article::replaceSection asked for bogus section (page: " .
+ $this->getId() . "; section: $section; edittime: $edittime)\n" );
+ return null;
+ }
+ $oldtext = $rev->getText();
+
+ if($section=='new') {
+ if($summary) $subject="== {$summary} ==\n\n";
+ $text=$oldtext."\n\n".$subject.$text;
+ } else {
+ global $wgParser;
+ $text = $wgParser->replaceSection( $oldtext, $section, $text );
+ }
+ }
+
+ wfProfileOut( __METHOD__ );
+ return $text;
+ }
+
+ /**
+ * @deprecated use Article::doEdit()
+ */
+ function insertNewArticle( $text, $summary, $isminor, $watchthis, $suppressRC=false, $comment=false ) {
+ $flags = EDIT_NEW | EDIT_DEFER_UPDATES |
+ ( $isminor ? EDIT_MINOR : 0 ) |
+ ( $suppressRC ? EDIT_SUPPRESS_RC : 0 );
+
+ # If this is a comment, add the summary as headline
+ if ( $comment && $summary != "" ) {
+ $text = "== {$summary} ==\n\n".$text;
+ }
+
+ $this->doEdit( $text, $summary, $flags );
+
+ $dbw =& wfGetDB( DB_MASTER );
+ if ($watchthis) {
+ if (!$this->mTitle->userIsWatching()) {
+ $dbw->begin();
+ $this->doWatch();
+ $dbw->commit();
+ }
+ } else {
+ if ( $this->mTitle->userIsWatching() ) {
+ $dbw->begin();
+ $this->doUnwatch();
+ $dbw->commit();
+ }
+ }
+ $this->doRedirect( $this->isRedirect( $text ) );
+ }
+
+ /**
+ * @deprecated use Article::doEdit()
+ */
+ function updateArticle( $text, $summary, $minor, $watchthis, $forceBot = false, $sectionanchor = '' ) {
+ $flags = EDIT_UPDATE | EDIT_DEFER_UPDATES |
+ ( $minor ? EDIT_MINOR : 0 ) |
+ ( $forceBot ? EDIT_FORCE_BOT : 0 );
+
+ $good = $this->doEdit( $text, $summary, $flags );
+ if ( $good ) {
+ $dbw =& wfGetDB( DB_MASTER );
+ if ($watchthis) {
+ if (!$this->mTitle->userIsWatching()) {
+ $dbw->begin();
+ $this->doWatch();
+ $dbw->commit();
+ }
+ } else {
+ if ( $this->mTitle->userIsWatching() ) {
+ $dbw->begin();
+ $this->doUnwatch();
+ $dbw->commit();
+ }
+ }
+
+ $this->doRedirect( $this->isRedirect( $text ), $sectionanchor );
+ }
+ return $good;
+ }
+
+ /**
+ * Article::doEdit()
+ *
+ * Change an existing article or create a new article. Updates RC and all necessary caches,
+ * optionally via the deferred update array.
+ *
+ * $wgUser must be set before calling this function.
+ *
+ * @param string $text New text
+ * @param string $summary Edit summary
+ * @param integer $flags bitfield:
+ * EDIT_NEW
+ * Article is known or assumed to be non-existent, create a new one
+ * EDIT_UPDATE
+ * Article is known or assumed to be pre-existing, update it
+ * EDIT_MINOR
+ * Mark this edit minor, if the user is allowed to do so
+ * EDIT_SUPPRESS_RC
+ * Do not log the change in recentchanges
+ * EDIT_FORCE_BOT
+ * Mark the edit a "bot" edit regardless of user rights
+ * EDIT_DEFER_UPDATES
+ * Defer some of the updates until the end of index.php
+ *
+ * If neither EDIT_NEW nor EDIT_UPDATE is specified, the status of the article will be detected.
+ * If EDIT_UPDATE is specified and the article doesn't exist, the function will return false. If
+ * EDIT_NEW is specified and the article does exist, a duplicate key error will cause an exception
+ * to be thrown from the Database. These two conditions are also possible with auto-detection due
+ * to MediaWiki's performance-optimised locking strategy.
+ *
+ * @return bool success
+ */
+ function doEdit( $text, $summary, $flags = 0 ) {
+ global $wgUser, $wgDBtransactions;
+
+ wfProfileIn( __METHOD__ );
+ $good = true;
+
+ if ( !($flags & EDIT_NEW) && !($flags & EDIT_UPDATE) ) {
+ $aid = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
+ if ( $aid ) {
+ $flags |= EDIT_UPDATE;
+ } else {
+ $flags |= EDIT_NEW;
+ }
+ }
+
+ if( !wfRunHooks( 'ArticleSave', array( &$this, &$wgUser, &$text,
+ &$summary, $flags & EDIT_MINOR,
+ null, null, &$flags ) ) )
+ {
+ wfDebug( __METHOD__ . ": ArticleSave hook aborted save!\n" );
+ wfProfileOut( __METHOD__ );
+ return false;
+ }
+
+ # Silently ignore EDIT_MINOR if not allowed
+ $isminor = ( $flags & EDIT_MINOR ) && $wgUser->isAllowed('minoredit');
+ $bot = $wgUser->isBot() || ( $flags & EDIT_FORCE_BOT );
+
+ $text = $this->preSaveTransform( $text );
+
+ $dbw =& wfGetDB( DB_MASTER );
+ $now = wfTimestampNow();
+
+ if ( $flags & EDIT_UPDATE ) {
+ # Update article, but only if changed.
+
+ # Make sure the revision is either completely inserted or not inserted at all
+ if( !$wgDBtransactions ) {
+ $userAbort = ignore_user_abort( true );
+ }
+
+ $oldtext = $this->getContent();
+ $oldsize = strlen( $oldtext );
+ $newsize = strlen( $text );
+ $lastRevision = 0;
+ $revisionId = 0;
+
+ if ( 0 != strcmp( $text, $oldtext ) ) {
+ $this->mGoodAdjustment = (int)$this->isCountable( $text )
+ - (int)$this->isCountable( $oldtext );
+ $this->mTotalAdjustment = 0;
+
+ $lastRevision = $dbw->selectField(
+ 'page', 'page_latest', array( 'page_id' => $this->getId() ) );
+
+ if ( !$lastRevision ) {
+ # Article gone missing
+ wfDebug( __METHOD__.": EDIT_UPDATE specified but article doesn't exist\n" );
+ wfProfileOut( __METHOD__ );
+ return false;
+ }
+
+ $revision = new Revision( array(
+ 'page' => $this->getId(),
+ 'comment' => $summary,
+ 'minor_edit' => $isminor,
+ 'text' => $text
+ ) );
+
+ $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
+ if( !( $flags & EDIT_SUPPRESS_RC ) ) {
+ $rcid = RecentChange::notifyEdit( $now, $this->mTitle, $isminor, $wgUser, $summary,
+ $lastRevision, $this->getTimestamp(), $bot, '', $oldsize, $newsize,
+ $revisionId );
+
+ # Mark as patrolled if the user can do so and has it set in their options
+ if( $wgUser->isAllowed( 'patrol' ) && $wgUser->getOption( 'autopatrol' ) ) {
+ RecentChange::markPatrolled( $rcid );
+ }
+ }
+ $dbw->commit();
+ }
+ } else {
+ // Keep the same revision ID, but do some updates on it
+ $revisionId = $this->getRevIdFetched();
+ // Update page_touched, this is usually implicit in the page update
+ // Other cache updates are done in onArticleEdit()
+ $this->mTitle->invalidateCache();
+ }
+
+ if( !$wgDBtransactions ) {
+ ignore_user_abort( $userAbort );
+ }
+
+ if ( $good ) {
+ # Invalidate cache of this article and all pages using this article
+ # as a template. Partly deferred.
+ Article::onArticleEdit( $this->mTitle );
+
+ # Update links tables, site stats, etc.
+ $changed = ( strcmp( $oldtext, $text ) != 0 );
+ $this->editUpdates( $text, $summary, $isminor, $now, $revisionId, $changed );
+ }
+ } else {
+ # Create new article
+
+ # Set statistics members
+ # We work out if it's countable after PST to avoid counter drift
+ # when articles are created with {{subst:}}
+ $this->mGoodAdjustment = (int)$this->isCountable( $text );
+ $this->mTotalAdjustment = 1;
+
+ $dbw->begin();
+
+ # Add the page record; stake our claim on this title!
+ # This will fail with a database query exception if the article already exists
+ $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 );
+
+ if( !( $flags & EDIT_SUPPRESS_RC ) ) {
+ $rcid = RecentChange::notifyNew( $now, $this->mTitle, $isminor, $wgUser, $summary, $bot,
+ '', strlen( $text ), $revisionId );
+ # Mark as patrolled if the user can and has the option set
+ if( $wgUser->isAllowed( 'patrol' ) && $wgUser->getOption( 'autopatrol' ) ) {
+ RecentChange::markPatrolled( $rcid );
+ }
+ }
+ $dbw->commit();
+
+ # Update links, etc.
+ $this->editUpdates( $text, $summary, $isminor, $now, $revisionId, true );
+
+ # Clear caches
+ Article::onArticleCreate( $this->mTitle );
+
+ wfRunHooks( 'ArticleInsertComplete', array( &$this, &$wgUser, $text,
+ $summary, $flags & EDIT_MINOR,
+ null, null, &$flags ) );
+ }
+
+ if ( $good && !( $flags & EDIT_DEFER_UPDATES ) ) {
+ wfDoUpdates();
+ }
+
+ wfRunHooks( 'ArticleSaveComplete',
+ array( &$this, &$wgUser, $text,
+ $summary, $flags & EDIT_MINOR,
+ null, null, &$flags ) );
+
+ wfProfileOut( __METHOD__ );
+ return $good;
+ }
+
+ /**
+ * @deprecated wrapper for doRedirect
+ */
+ function showArticle( $text, $subtitle , $sectionanchor = '', $me2, $now, $summary, $oldid ) {
+ $this->doRedirect( $this->isRedirect( $text ), $sectionanchor );
+ }
+
+ /**
+ * Output a redirect back to the article.
+ * This is typically used after an edit.
+ *
+ * @param boolean $noRedir Add redirect=no
+ * @param string $sectionAnchor section to redirect to, including "#"
+ */
+ function doRedirect( $noRedir = false, $sectionAnchor = '' ) {
+ global $wgOut;
+ if ( $noRedir ) {
+ $query = 'redirect=no';
+ } else {
+ $query = '';
+ }
+ $wgOut->redirect( $this->mTitle->getFullURL( $query ) . $sectionAnchor );
+ }
+
+ /**
+ * Mark this particular edit as patrolled
+ */
+ function markpatrolled() {
+ global $wgOut, $wgRequest, $wgUseRCPatrol, $wgUser;
+ $wgOut->setRobotpolicy( 'noindex,nofollow' );
+
+ # Check RC patrol config. option
+ if( !$wgUseRCPatrol ) {
+ $wgOut->errorPage( 'rcpatroldisabled', 'rcpatroldisabledtext' );
+ return;
+ }
+
+ # Check permissions
+ if( !$wgUser->isAllowed( 'patrol' ) ) {
+ $wgOut->permissionRequired( 'patrol' );
+ return;
+ }
+
+ $rcid = $wgRequest->getVal( 'rcid' );
+ if ( !is_null ( $rcid ) ) {
+ if( wfRunHooks( 'MarkPatrolled', array( &$rcid, &$wgUser, false ) ) ) {
+ RecentChange::markPatrolled( $rcid );
+ wfRunHooks( 'MarkPatrolledComplete', array( &$rcid, &$wgUser, false ) );
+ $wgOut->setPagetitle( wfMsg( 'markedaspatrolled' ) );
+ $wgOut->addWikiText( wfMsg( 'markedaspatrolledtext' ) );
+ }
+ $rcTitle = Title::makeTitle( NS_SPECIAL, 'Recentchanges' );
+ $wgOut->returnToMain( false, $rcTitle->getPrefixedText() );
+ }
+ else {
+ $wgOut->showErrorPage( 'markedaspatrollederror', 'markedaspatrollederrortext' );
+ }
+ }
+
+ /**
+ * User-interface handler for the "watch" action
+ */
+
+ function watch() {
+
+ global $wgUser, $wgOut;
+
+ if ( $wgUser->isAnon() ) {
+ $wgOut->showErrorPage( 'watchnologin', 'watchnologintext' );
+ return;
+ }
+ if ( wfReadOnly() ) {
+ $wgOut->readOnlyPage();
+ return;
+ }
+
+ if( $this->doWatch() ) {
+ $wgOut->setPagetitle( wfMsg( 'addedwatch' ) );
+ $wgOut->setRobotpolicy( 'noindex,nofollow' );
+
+ $link = $this->mTitle->getPrefixedText();
+ $text = wfMsg( 'addedwatchtext', $link );
+ $wgOut->addWikiText( $text );
+ }
+
+ $wgOut->returnToMain( true, $this->mTitle->getPrefixedText() );
+ }
+
+ /**
+ * Add this page to $wgUser's watchlist
+ * @return bool true on successful watch operation
+ */
+ function doWatch() {
+ global $wgUser;
+ if( $wgUser->isAnon() ) {
+ return false;
+ }
+
+ if (wfRunHooks('WatchArticle', array(&$wgUser, &$this))) {
+ $wgUser->addWatch( $this->mTitle );
+ $wgUser->saveSettings();
+
+ return wfRunHooks('WatchArticleComplete', array(&$wgUser, &$this));
+ }
+
+ return false;
+ }
+
+ /**
+ * User interface handler for the "unwatch" action.
+ */
+ function unwatch() {
+
+ global $wgUser, $wgOut;
+
+ if ( $wgUser->isAnon() ) {
+ $wgOut->showErrorPage( 'watchnologin', 'watchnologintext' );
+ return;
+ }
+ if ( wfReadOnly() ) {
+ $wgOut->readOnlyPage();
+ return;
+ }
+
+ if( $this->doUnwatch() ) {
+ $wgOut->setPagetitle( wfMsg( 'removedwatch' ) );
+ $wgOut->setRobotpolicy( 'noindex,nofollow' );
+
+ $link = $this->mTitle->getPrefixedText();
+ $text = wfMsg( 'removedwatchtext', $link );
+ $wgOut->addWikiText( $text );
+ }
+
+ $wgOut->returnToMain( true, $this->mTitle->getPrefixedText() );
+ }
+
+ /**
+ * Stop watching a page
+ * @return bool true on successful unwatch
+ */
+ function doUnwatch() {
+ global $wgUser;
+ if( $wgUser->isAnon() ) {
+ return false;
+ }
+
+ if (wfRunHooks('UnwatchArticle', array(&$wgUser, &$this))) {
+ $wgUser->removeWatch( $this->mTitle );
+ $wgUser->saveSettings();
+
+ return wfRunHooks('UnwatchArticleComplete', array(&$wgUser, &$this));
+ }
+
+ return false;
+ }
+
+ /**
+ * action=protect handler
+ */
+ function protect() {
+ require_once 'ProtectionForm.php';
+ $form = new ProtectionForm( $this );
+ $form->show();
+ }
+
+ /**
+ * action=unprotect handler (alias)
+ */
+ function unprotect() {
+ $this->protect();
+ }
+
+ /**
+ * Update the article's restriction field, and leave a log entry.
+ *
+ * @param array $limit set of restriction keys
+ * @param string $reason
+ * @return bool true on success
+ */
+ function updateRestrictions( $limit = array(), $reason = '' ) {
+ global $wgUser, $wgRestrictionTypes, $wgContLang;
+
+ $id = $this->mTitle->getArticleID();
+ if( !$wgUser->isAllowed( 'protect' ) || wfReadOnly() || $id == 0 ) {
+ return false;
+ }
+
+ # FIXME: Same limitations as described in ProtectionForm.php (line 37);
+ # we expect a single selection, but the schema allows otherwise.
+ $current = array();
+ foreach( $wgRestrictionTypes as $action )
+ $current[$action] = implode( '', $this->mTitle->getRestrictions( $action ) );
+
+ $current = Article::flattenRestrictions( $current );
+ $updated = Article::flattenRestrictions( $limit );
+
+ $changed = ( $current != $updated );
+ $protect = ( $updated != '' );
+
+ # If nothing's changed, do nothing
+ if( $changed ) {
+ if( wfRunHooks( 'ArticleProtect', array( &$this, &$wgUser, $limit, $reason ) ) ) {
+
+ $dbw =& wfGetDB( DB_MASTER );
+
+ # Prepare a null revision to be added to the history
+ $comment = $wgContLang->ucfirst( wfMsgForContent( $protect ? 'protectedarticle' : 'unprotectedarticle', $this->mTitle->getPrefixedText() ) );
+ if( $reason )
+ $comment .= ": $reason";
+ if( $protect )
+ $comment .= " [$updated]";
+ $nullRevision = Revision::newNullRevision( $dbw, $id, $comment, true );
+ $nullRevId = $nullRevision->insertOn( $dbw );
+
+ # Update page record
+ $dbw->update( 'page',
+ array( /* SET */
+ 'page_touched' => $dbw->timestamp(),
+ 'page_restrictions' => $updated,
+ 'page_latest' => $nullRevId
+ ), array( /* WHERE */
+ 'page_id' => $id
+ ), 'Article::protect'
+ );
+ wfRunHooks( 'ArticleProtectComplete', array( &$this, &$wgUser, $limit, $reason ) );
+
+ # Update the protection log
+ $log = new LogPage( 'protect' );
+ if( $protect ) {
+ $log->addEntry( 'protect', $this->mTitle, trim( $reason . " [$updated]" ) );
+ } else {
+ $log->addEntry( 'unprotect', $this->mTitle, $reason );
+ }
+
+ } # End hook
+ } # End "changed" check
+
+ return true;
+ }
+
+ /**
+ * Take an array of page restrictions and flatten it to a string
+ * suitable for insertion into the page_restrictions field.
+ * @param array $limit
+ * @return string
+ * @private
+ */
+ function flattenRestrictions( $limit ) {
+ if( !is_array( $limit ) ) {
+ throw new MWException( 'Article::flattenRestrictions given non-array restriction set' );
+ }
+ $bits = array();
+ ksort( $limit );
+ foreach( $limit as $action => $restrictions ) {
+ if( $restrictions != '' ) {
+ $bits[] = "$action=$restrictions";
+ }
+ }
+ return implode( ':', $bits );
+ }
+
+ /*
+ * UI entry point for page deletion
+ */
+ function delete() {
+ global $wgUser, $wgOut, $wgRequest;
+ $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' ) ) {
+ if( $wgUser->isBlocked() ) {
+ $wgOut->blockedPage();
+ return;
+ }
+ } else {
+ $wgOut->permissionRequired( 'delete' );
+ return;
+ }
+
+ if( wfReadOnly() ) {
+ $wgOut->readOnlyPage();
+ return;
+ }
+
+ $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
+
+ # Better double-check that it hasn't been deleted yet!
+ $dbw =& wfGetDB( DB_MASTER );
+ $conds = $this->mTitle->pageCond();
+ $latest = $dbw->selectField( 'page', 'page_latest', $conds, __METHOD__ );
+ if ( $latest === false ) {
+ $wgOut->showFatalError( wfMsg( 'cannotdelete' ) );
+ return;
+ }
+
+ if( $confirm ) {
+ $this->doDelete( $reason );
+ return;
+ }
+
+ # determine whether this page has earlier revisions
+ # and insert a warning if it does
+ $maxRevisions = 20;
+ $authors = $this->getLastNAuthors( $maxRevisions, $latest );
+
+ if( count( $authors ) > 1 && !$confirm ) {
+ $skin=$wgUser->getSkin();
+ $wgOut->addHTML( '<strong>' . wfMsg( 'historywarning' ) . ' ' . $skin->historyLink() . '</strong>' );
+ }
+
+ # If a single user is responsible for all revisions, find out who they are
+ if ( count( $authors ) == $maxRevisions ) {
+ // Query bailed out, too many revisions to find out if they're all the same
+ $authorOfAll = false;
+ } else {
+ $authorOfAll = reset( $authors );
+ foreach ( $authors as $author ) {
+ if ( $authorOfAll != $author ) {
+ $authorOfAll = false;
+ break;
+ }
+ }
+ }
+ # Fetch article text
+ $rev = Revision::newFromTitle( $this->mTitle );
+
+ 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( $authorOfAll === false ) {
+ $reason = wfMsgForContent( 'excontent', $text );
+ } else {
+ $reason = wfMsgForContent( 'excontentauthor', $text, $authorOfAll );
+ }
+ } else {
+ $reason = wfMsgForContent( 'exbeforeblank', $text );
+ }
+ }
+ }
+
+ return $this->confirmDelete( '', $reason );
+ }
+
+ /**
+ * Get the last N authors
+ * @param int $num Number of revisions to get
+ * @param string $revLatest The latest rev_id, selected from the master (optional)
+ * @return array Array of authors, duplicates not removed
+ */
+ function getLastNAuthors( $num, $revLatest = 0 ) {
+ wfProfileIn( __METHOD__ );
+
+ // First try the slave
+ // If that doesn't have the latest revision, try the master
+ $continue = 2;
+ $db =& wfGetDB( DB_SLAVE );
+ do {
+ $res = $db->select( array( 'page', 'revision' ),
+ array( 'rev_id', 'rev_user_text' ),
+ array(
+ 'page_namespace' => $this->mTitle->getNamespace(),
+ 'page_title' => $this->mTitle->getDBkey(),
+ 'rev_page = page_id'
+ ), __METHOD__, $this->getSelectOptions( array(
+ 'ORDER BY' => 'rev_timestamp DESC',
+ 'LIMIT' => $num
+ ) )
+ );
+ if ( !$res ) {
+ wfProfileOut( __METHOD__ );
+ return array();
+ }
+ $row = $db->fetchObject( $res );
+ if ( $continue == 2 && $revLatest && $row->rev_id != $revLatest ) {
+ $db =& wfGetDB( DB_MASTER );
+ $continue--;
+ } else {
+ $continue = 0;
+ }
+ } while ( $continue );
+
+ $authors = array( $row->rev_user_text );
+ while ( $row = $db->fetchObject( $res ) ) {
+ $authors[] = $row->rev_user_text;
+ }
+ wfProfileOut( __METHOD__ );
+ return $authors;
+ }
+
+ /**
+ * 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( 'deletepage' ) );
+ $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, $wgUser;
+ wfDebug( __METHOD__."\n" );
+
+ if (wfRunHooks('ArticleDelete', array(&$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->showFatalError( wfMsg( 'cannotdelete' ) );
+ }
+ }
+ }
+
+ /**
+ * Back-end article deletion
+ * Deletes the article with database consistency, writes logs, purges caches
+ * Returns success
+ */
+ function doDeleteArticle( $reason ) {
+ global $wgUseSquid, $wgDeferredUpdateList;
+ global $wgPostCommitUpdateList, $wgUseTrackbacks;
+
+ wfDebug( __METHOD__."\n" );
+
+ $dbw =& wfGetDB( DB_MASTER );
+ $ns = $this->mTitle->getNamespace();
+ $t = $this->mTitle->getDBkey();
+ $id = $this->mTitle->getArticleID();
+
+ if ( $t == '' || $id == 0 ) {
+ return false;
+ }
+
+ $u = new SiteStatsUpdate( 0, 1, -(int)$this->isCountable( $this->getContent() ), -1 );
+ array_push( $wgDeferredUpdateList, $u );
+
+ // 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'
+ ), __METHOD__
+ );
+
+ # Now that it's safely backed up, delete it
+ $dbw->delete( 'revision', array( 'rev_page' => $id ), __METHOD__ );
+ $dbw->delete( 'page', array( 'page_id' => $id ), __METHOD__);
+
+ if ($wgUseTrackbacks)
+ $dbw->delete( 'trackbacks', array( 'tb_page' => $id ), __METHOD__ );
+
+ # Clean up recentchanges entries...
+ $dbw->delete( 'recentchanges', array( 'rc_namespace' => $ns, 'rc_title' => $t ), __METHOD__ );
+
+ # Finally, clean up the link tables
+ $t = $this->mTitle->getPrefixedDBkey();
+
+ # Clear caches
+ 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 ) );
+ $dbw->delete( 'templatelinks', array( 'tl_from' => $id ) );
+ $dbw->delete( 'externallinks', array( 'el_from' => $id ) );
+ $dbw->delete( 'langlinks', array( 'll_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, $wgUseRCPatrol;
+
+ if( $wgUser->isAllowed( 'rollback' ) ) {
+ if( $wgUser->isBlocked() ) {
+ $wgOut->blockedPage();
+ return;
+ }
+ } else {
+ $wgOut->permissionRequired( 'rollback' );
+ return;
+ }
+
+ if ( wfReadOnly() ) {
+ $wgOut->readOnlyPage( $this->getContent() );
+ return;
+ }
+ if( !$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
+ $current = Revision::newFromTitle( $this->mTitle );
+ if( is_null( $current ) ) {
+ # Something wrong... no page?
+ $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}"
+ ), __METHOD__,
+ array(
+ 'USE INDEX' => 'page_timestamp',
+ 'ORDER BY' => 'rev_timestamp DESC' )
+ );
+ if( $s === false ) {
+ # Something wrong
+ $wgOut->setPageTitle(wfMsg('rollbackfailed'));
+ $wgOut->addHTML( wfMsg( 'cantrollback' ) );
+ return;
+ }
+
+ $set = array();
+ if ( $bot ) {
+ # Mark all reverted edits as bot
+ $set['rc_bot'] = 1;
+ }
+ if ( $wgUseRCPatrol ) {
+ # Mark all reverted edits as patrolled
+ $set['rc_patrolled'] = 1;
+ }
+
+ if ( $set ) {
+ $dbw->update( 'recentchanges', $set,
+ array( /* WHERE */
+ 'rc_cur_id' => $current->getPage(),
+ 'rc_user_text' => $current->getUserText(),
+ "rc_timestamp > '{$s->rev_timestamp}'",
+ ), __METHOD__
+ );
+ }
+
+ # Get the edit summary
+ $target = Revision::newFromId( $s->rev_id );
+ $newComment = wfMsgForContent( 'revertpage', $target->getUserText(), $from );
+ $newComment = $wgRequest->getText( 'summary', $newComment );
+
+ # Save it!
+ $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 );
+
+ $wgOut->returnToMain( false );
+ }
+
+
+ /**
+ * Do standard deferred updates after page view
+ * @private
+ */
+ function viewUpdates() {
+ global $wgDeferredUpdateList;
+
+ if ( 0 != $this->getID() ) {
+ global $wgDisableCounters;
+ if( !$wgDisableCounters ) {
+ Article::incViewCount( $this->getID() );
+ $u = new SiteStatsUpdate( 1, 0, 0 );
+ array_push( $wgDeferredUpdateList, $u );
+ }
+ }
+
+ # Update newtalk / watchlist notification status
+ global $wgUser;
+ $wgUser->clearNotification( $this->mTitle );
+ }
+
+ /**
+ * Do standard deferred updates after page edit.
+ * Update links tables, site stats, search index and message cache.
+ * Every 1000th edit, prune the recent changes table.
+ *
+ * @private
+ * @param $text New text of the article
+ * @param $summary Edit summary
+ * @param $minoredit Minor edit
+ * @param $timestamp_of_pagechange Timestamp associated with the page change
+ * @param $newid rev_id value of the new revision
+ * @param $changed Whether or not the content actually changed
+ */
+ function editUpdates( $text, $summary, $minoredit, $timestamp_of_pagechange, $newid, $changed = true ) {
+ global $wgDeferredUpdateList, $wgMessageCache, $wgUser, $wgParser;
+
+ wfProfileIn( __METHOD__ );
+
+ # Parse the text
+ $options = new ParserOptions;
+ $options->setTidy(true);
+ $poutput = $wgParser->parse( $text, $this->mTitle, $options, true, true, $newid );
+
+ # Save it to the parser cache
+ $parserCache =& ParserCache::singleton();
+ $parserCache->save( $poutput, $this, $wgUser );
+
+ # Update the links tables
+ $u = new LinksUpdate( $this->mTitle, $poutput );
+ $u->doUpdate();
+
+ if ( wfRunHooks( 'ArticleEditUpdatesDeleteFromRecentchanges', array( &$this ) ) ) {
+ 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 );
+ }
+ }
+
+ $id = $this->getID();
+ $title = $this->mTitle->getPrefixedDBkey();
+ $shortTitle = $this->mTitle->getDBkey();
+
+ if ( 0 == $id ) {
+ wfProfileOut( __METHOD__ );
+ return;
+ }
+
+ $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
+ # Don't do this if $changed = false otherwise some idiot can null-edit a
+ # load of user talk pages and piss people off
+ if( $this->mTitle->getNamespace() == NS_USER_TALK && $shortTitle != $wgUser->getName() && $changed ) {
+ if (wfRunHooks('ArticleEditUpdateNewTalk', array(&$this)) ) {
+ $other = User::newFromName( $shortTitle );
+ if( is_null( $other ) && User::isIP( $shortTitle ) ) {
+ // An anonymous user
+ $other = new User();
+ $other->setName( $shortTitle );
+ }
+ if( $other ) {
+ $other->setNewtalk( true );
+ }
+ }
+ }
+
+ if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
+ $wgMessageCache->replace( $shortTitle, $text );
+ }
+
+ wfProfileOut( __METHOD__ );
+ }
+
+ /**
+ * 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 -\>
+ *
+ * @private
+ * @param string $oldid Revision ID of this article revision
+ */
+ function setOldSubtitle( $oldid=0 ) {
+ global $wgLang, $wgOut, $wgUser;
+
+ $revision = Revision::newFromId( $oldid );
+
+ $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' );
+ $prevdiff = $prev
+ ? $sk->makeKnownLinkObj( $this->mTitle, wfMsg( 'diff' ), 'diff=prev&oldid='.$oldid )
+ : wfMsg( 'diff' );
+ $nextlink = $current
+ ? wfMsg( 'nextrevision' )
+ : $sk->makeKnownLinkObj( $this->mTitle, wfMsg( 'nextrevision' ), 'direction=next&oldid='.$oldid );
+ $nextdiff = $current
+ ? wfMsg( 'diff' )
+ : $sk->makeKnownLinkObj( $this->mTitle, wfMsg( 'diff' ), 'diff=next&oldid='.$oldid );
+
+ $userlinks = $sk->userLink( $revision->getUser(), $revision->getUserText() )
+ . $sk->userToolLinks( $revision->getUser(), $revision->getUserText() );
+
+ $r = wfMsg( 'old-revision-navigation', $td, $lnk, $prevlink, $nextlink, $userlinks, $prevdiff, $nextdiff );
+ $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( "Article::tryFileCache(): called twice!?\n" );
+ return;
+ }
+ $called = true;
+ if($this->isFileCacheable()) {
+ $touched = $this->mTouched;
+ $cache = new CacheManager( $this->mTitle );
+ if($cache->isFileCacheGood( $touched )) {
+ wfDebug( "Article::tryFileCache(): about to load file\n" );
+ $cache->loadFromFileCache();
+ return true;
+ } else {
+ wfDebug( "Article::tryFileCache(): starting buffer\n" );
+ ob_start( array(&$cache, 'saveToFileCache' ) );
+ }
+ } else {
+ wfDebug( "Article::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 page_touched and returns a value indicating if it should be used
+ *
+ */
+ function checkTouched() {
+ if( !$this->mDataLoaded ) {
+ $this->loadPageData();
+ }
+ return !$this->mIsRedirect;
+ }
+
+ /**
+ * Get the page_touched field
+ */
+ function getTouched() {
+ # Ensure that page data has been loaded
+ if( !$this->mDataLoaded ) {
+ $this->loadPageData();
+ }
+ return $this->mTouched;
+ }
+
+ /**
+ * Get the page_latest field
+ */
+ function getLatest() {
+ if ( !$this->mDataLoaded ) {
+ $this->loadPageData();
+ }
+ return $this->mLatest;
+ }
+
+ /**
+ * 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 ) {
+ wfProfileIn( __METHOD__ );
+
+ $dbw =& wfGetDB( DB_MASTER );
+ $dbw->begin();
+ $revision = new Revision( array(
+ 'page' => $this->getId(),
+ 'text' => $text,
+ 'comment' => $comment,
+ 'minor_edit' => $minor ? 1 : 0,
+ ) );
+ # fixme : $revisionId never used
+ $revisionId = $revision->insertOn( $dbw );
+ $this->updateRevisionOn( $dbw, $revision );
+ $dbw->commit();
+
+ wfProfileOut( __METHOD__ );
+ }
+
+ /**
+ * Used to increment the view counter
+ *
+ * @static
+ * @param integer $id article id
+ */
+ function incViewCount( $id ) {
+ $id = intval( $id );
+ global $wgHitcounterUpdateFreq, $wgDBtype;
+
+ $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' );
+ $old_user_abort = ignore_user_abort( true );
+
+ if ($wgDBtype == 'mysql')
+ $dbw->query("LOCK TABLES $hitcounterTable WRITE");
+ $tabletype = $wgDBtype == 'mysql' ? "ENGINE=HEAP " : '';
+ $dbw->query("CREATE TEMPORARY TABLE $acchitsTable $tabletype".
+ "SELECT hc_id,COUNT(*) AS hc_n FROM $hitcounterTable ".
+ 'GROUP BY hc_id');
+ $dbw->query("DELETE FROM $hitcounterTable");
+ if ($wgDBtype == 'mysql')
+ $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 $title_obj a title object
+ */
+
+ static function onArticleCreate($title) {
+ # The talk page isn't in the regular link tables, so we need to update manually:
+ if ( $title->isTalkPage() ) {
+ $other = $title->getSubjectPage();
+ } else {
+ $other = $title->getTalkPage();
+ }
+ $other->invalidateCache();
+ $other->purgeSquid();
+
+ $title->touchLinks();
+ $title->purgeSquid();
+ }
+
+ static function onArticleDelete( $title ) {
+ global $wgUseFileCache, $wgMessageCache;
+
+ $title->touchLinks();
+ $title->purgeSquid();
+
+ # File cache
+ if ( $wgUseFileCache ) {
+ $cm = new CacheManager( $title );
+ @unlink( $cm->fileCacheName() );
+ }
+
+ if( $title->getNamespace() == NS_MEDIAWIKI) {
+ $wgMessageCache->replace( $title->getDBkey(), false );
+ }
+ }
+
+ /**
+ * Purge caches on page update etc
+ */
+ static function onArticleEdit( $title ) {
+ global $wgDeferredUpdateList, $wgUseFileCache;
+
+ $urls = array();
+
+ // Invalidate caches of articles which include this page
+ $update = new HTMLCacheUpdate( $title, 'templatelinks' );
+ $wgDeferredUpdateList[] = $update;
+
+ # Purge squid for this page only
+ $title->purgeSquid();
+
+ # Clear file cache
+ if ( $wgUseFileCache ) {
+ $cm = new CacheManager( $title );
+ @unlink( $cm->fileCacheName() );
+ }
+ }
+
+ /**#@-*/
+
+ /**
+ * Info about this page
+ * Called for ?action=info when $wgAllowPageInfo is on.
+ *
+ * @public
+ */
+ function info() {
+ global $wgLang, $wgOut, $wgAllowPageInfo, $wgUser;
+
+ if ( !$wgAllowPageInfo ) {
+ $wgOut->showErrorPage( '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 ) {
+ if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
+ $wgOut->addHTML(wfMsgWeirdKey ( $this->mTitle->getText() ) );
+ } else {
+ $wgOut->addHTML(wfMsg( $wgUser->isLoggedIn() ? 'noarticletext' : 'noarticletextanon' ) );
+ }
+ } else {
+ $dbr =& wfGetDB( DB_SLAVE );
+ $wl_clause = array(
+ 'wl_title' => $page->getDBkey(),
+ 'wl_namespace' => $page->getNamespace() );
+ $numwatchers = $dbr->selectField(
+ 'watchlist',
+ 'COUNT(*)',
+ $wl_clause,
+ __METHOD__,
+ $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
+ * @private
+ */
+ function pageCountInfo( $title ) {
+ $id = $title->getArticleId();
+ if( $id == 0 ) {
+ return false;
+ }
+
+ $dbr =& wfGetDB( DB_SLAVE );
+
+ $rev_clause = array( 'rev_page' => $id );
+
+ $edits = $dbr->selectField(
+ 'revision',
+ 'COUNT(rev_page)',
+ $rev_clause,
+ __METHOD__,
+ $this->getSelectOptions() );
+
+ $authors = $dbr->selectField(
+ 'revision',
+ 'COUNT(DISTINCT rev_user_text)',
+ $rev_clause,
+ __METHOD__,
+ $this->getSelectOptions() );
+
+ return array( 'edits' => $edits, 'authors' => $authors );
+ }
+
+ /**
+ * Return a list of templates used by this article.
+ * Uses the templatelinks table
+ *
+ * @return array Array of Title objects
+ */
+ function getUsedTemplates() {
+ $result = array();
+ $id = $this->mTitle->getArticleID();
+ if( $id == 0 ) {
+ return array();
+ }
+
+ $dbr =& wfGetDB( DB_SLAVE );
+ $res = $dbr->select( array( 'templatelinks' ),
+ array( 'tl_namespace', 'tl_title' ),
+ array( 'tl_from' => $id ),
+ 'Article:getUsedTemplates' );
+ if ( false !== $res ) {
+ if ( $dbr->numRows( $res ) ) {
+ while ( $row = $dbr->fetchObject( $res ) ) {
+ $result[] = Title::makeTitle( $row->tl_namespace, $row->tl_title );
+ }
+ }
+ }
+ $dbr->freeResult( $res );
+ return $result;
+ }
+}
+
+?>
generated by cgit v1.2.2 (git 2.25.0) at 2024-04-25 11:06:18 +0000