.*?<\/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 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
}
}
$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();
$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();
$this->mOldId = $oldid;
$this->fetchContent( $oldid );
}
/**
* Fetch a page record with the given conditions
* @param Database $dbr
* @param array $conditions
* @access private
*/
function pageData( &$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
* @access 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 {
$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();
$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;
}
$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;
}
}
// 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( MW_REV_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 mixed $x
*/
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 array $options 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 string $text Text to analyze
* @return bool
*/
function isCountable( $text ) {
global $wgUseCommaCount;
$token = $wgUseCommaCount ? ',' : '[[';
return
$this->mTitle->getNamespace() == NS_MAIN
&& ! $this->isRedirect( $text )
&& in_string( $token, $text );
}
/**
* Tests if the article text represents a redirect
*
* @param string $text
* @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.
* @access 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 $this->mRevIdFetched;
}
function getContributors($limit = 0, $offset = 0) {
$fname = 'Article::getContributors';
# 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, $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, $wgContLang;
global $wgEnableParserCache, $wgStylePath, $wgUseRCPatrol, $wgParser;
global $wgUseTrackbacks;
$sk = $wgUser->getSkin();
$fname = 'Article::view';
wfProfileIn( $fname );
$parserCache =& ParserCache::singleton();
# Get variables from query string
$oldid = $this->getOldID();
# getOldID may want us to redirect somewhere else
if ( $this->mRedirectUrl ) {
$wgOut->redirect( $this->mRedirectUrl );
wfProfileOut( $fname );
return;
}
$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( $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( $fname );
return;
}
if ( empty( $oldid ) && $this->checkTouched() ) {
$wgOut->setETag($parserCache->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" );
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( $this->mRevision->isDeleted( MW_REV_DELETED_TEXT ) ) {
if( !$this->mRevision->userCan( MW_REV_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 (
$this->mTitle->getNamespace() == NS_USER &&
preg_match('/\\/[\\w]+\\.(css|js)$/', $this->mTitle->getDBkey())
) {
$wgOut->addWikiText( wfMsg('clearyourcache'));
$wgOut->addHTML( ''.htmlspecialchars($this->mContent)."\n
" );
} else if ( $rt = Title::newFromRedirect( $text ) ) {
# Display redirect
$imageDir = $wgContLang->isRTL() ? 'rtl' : 'ltr';
$imageUrl = $wgStylePath.'/common/images/redirect' . $imageDir . '.png';
if( !$wasRedirected ) {
$wgOut->setSubtitle( wfMsgHtml( 'redirectpagesub' ) );
}
$targetUrl = $rt->escapeLocalURL();
$titleText = htmlspecialchars( $rt->getPrefixedText() );
$link = $sk->makeLinkObj( $rt );
$wgOut->addHTML( '
' .
''.$link.'' );
$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() );
}
# 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(
"" .
wfMsg ( 'markaspatrolledlink',
$sk->makeKnownLinkObj( $this->mTitle, wfMsg('markaspatrolledtext'), "action=markpatrolled&rcid=$rcid" )
) .
'
'
);
}
# Trackbacks
if ($wgUseTrackbacks)
$this->addTrackbacks();
$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();
}
/**
* 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',
"\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 $restrictions
* @return int The newly created page_id key
* @access private
*/
function insertOn( &$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( wfTimestamp(TS_MW, $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;
}
/**
* Insert a new article into the database
* @access private
*/
function insertNewArticle( $text, $summary, $isminor, $watchthis, $suppressRC=false, $comment=false ) {
global $wgUser;
$fname = 'Article::insertNewArticle';
wfProfileIn( $fname );
if( !wfRunHooks( 'ArticleSave', array( &$this, &$wgUser, &$text,
&$summary, &$isminor, &$watchthis, NULL ) ) ) {
wfDebug( "$fname: ArticleSave hook aborted save!\n" );
wfProfileOut( $fname );
return false;
}
$this->mGoodAdjustment = (int)$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 );
/* Silently ignore minoredit if not allowed */
$isminor = $isminor && $wgUser->isAllowed('minoredit');
$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) {
require_once( 'RecentChange.php' );
$rcid = RecentChange::notifyNew( $now, $this->mTitle, $isminor, $wgUser, $summary, 'default',
'', strlen( $text ), $revisionId );
# Mark as patrolled if the user can and has the option set
if( $wgUser->isAllowed( 'patrol' ) && $wgUser->getOption( 'autopatrol' ) ) {
RecentChange::markPatrolled( $rcid );
}
}
if ($watchthis) {
if(!$this->mTitle->userIsWatching()) $this->doWatch();
} else {
if ( $this->mTitle->userIsWatching() ) {
$this->doUnwatch();
}
}
# 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, $revisionId );
$oldid = 0; # new article
$this->showArticle( $text, wfMsg( 'newarticle' ), false, $isminor, $now, $summary, $oldid );
wfRunHooks( 'ArticleInsertComplete', array( &$this, &$wgUser, $text,
$summary, $isminor,
$watchthis, NULL ) );
wfRunHooks( 'ArticleSaveComplete', array( &$this, &$wgUser, $text,
$summary, $isminor,
$watchthis, NULL ) );
wfProfileOut( $fname );
}
function getTextOfLastEditWithSectionReplacedOrAdded($section, $text, $summary = '', $edittime = NULL) {
$this->replaceSection( $section, $text, $summary, $edittime );
}
/**
* @return string Complete article text, or null if error
*/
function replaceSection($section, $text, $summary = '', $edittime = NULL) {
$fname = 'Article::replaceSection';
wfProfileIn( $fname );
if ($section != '') {
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 {
# 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].*?>)(?!\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[$section*2-1];
preg_match( '/^(=+).+?=+|^.*?<\/h[1-6].*?>(?!\S)/mi',$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[$count*2-1];
preg_match(
'/^(=+).+?=+|^.*?<\/h[1-6].*?>(?!\S)/mi',$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);
}
}
wfProfileOut( $fname );
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 $wgUser, $wgDBtransactions, $wgUseSquid;
global $wgPostCommitUpdateList, $wgUseFileCache;
$fname = 'Article::updateArticle';
wfProfileIn( $fname );
$good = true;
if( !wfRunHooks( 'ArticleSave', array( &$this, &$wgUser, &$text,
&$summary, &$minor,
&$watchthis, &$sectionanchor ) ) ) {
wfDebug( "$fname: ArticleSave hook aborted save!\n" );
wfProfileOut( $fname );
return false;
}
$isminor = $minor && $wgUser->isAllowed('minoredit');
$redir = (int)$this->isRedirect( $text );
$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();
$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;
$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
require_once( 'RecentChange.php' );
$bot = (int)($wgUser->isBot() || $forceBot);
$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();
// Update caches outside the main transaction
Article::onArticleEdit( $this->mTitle );
}
} else {
// Keep the same revision ID, but do some updates on it
$revisionId = $this->getRevIdFetched();
}
if( !$wgDBtransactions ) {
ignore_user_abort( $userAbort );
}
if ( $good ) {
if ($watchthis) {
if (!$this->mTitle->userIsWatching()) {
$dbw->immediateCommit();
$dbw->begin();
$this->doWatch();
$dbw->commit();
}
} else {
if ( $this->mTitle->userIsWatching() ) {
$dbw->immediateCommit();
$dbw->begin();
$this->doUnwatch();
$dbw->commit();
}
}
# standard deferred updates
$this->editUpdates( $text, $summary, $minor, $now, $revisionId );
$urls = array();
# Invalidate caches of all articles using this article as a template
# Template namespace
# Purge all articles linking here
$titles = $this->mTitle->getTemplateLinksTo();
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, $lastRevision );
}
wfRunHooks( 'ArticleSaveComplete',
array( &$this, &$wgUser, $text,
$summary, $minor,
$watchthis, $sectionanchor ) );
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 $wgOut;
$fname = 'Article::showArticle';
wfProfileIn( $fname );
# Output the redirect
if( $this->isRedirect( $text ) )
$r = 'redirect=no';
else
$r = '';
$wgOut->redirect( $this->mTitle->getFullURL( $r ).$sectionanchor );
wfProfileOut( $fname );
}
/**
* Mark this particular edit as patrolled
*/
function markpatrolled() {
global $wgOut, $wgRequest, $wgUseRCPatrol, $wgUser;
$wgOut->setRobotpolicy( 'noindex,follow' );
# Check RC patrol config. option
if( !$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 ) ) ) {
require_once( 'RecentChange.php' );
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->errorpage( 'markedaspatrollederror', 'markedaspatrollederrortext' );
}
}
/**
* User-interface handler for the "watch" action
*/
function watch() {
global $wgUser, $wgOut;
if ( $wgUser->isAnon() ) {
$wgOut->errorpage( 'watchnologin', 'watchnologintext' );
return;
}
if ( wfReadOnly() ) {
$wgOut->readOnlyPage();
return;
}
if( $this->doWatch() ) {
$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() );
}
/**
* 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->errorpage( 'watchnologin', 'watchnologintext' );
return;
}
if ( wfReadOnly() ) {
$wgOut->readOnlyPage();
return;
}
if( $this->doUnwatch() ) {
$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() );
}
/**
* 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 $wgUser;
if ( !$wgUser->isAllowed( 'protect' ) ) {
return false;
}
if( wfReadOnly() ) {
return false;
}
$id = $this->mTitle->getArticleID();
if ( 0 == $id ) {
return false;
}
$flat = Article::flattenRestrictions( $limit );
$protecting = ($flat != '');
if( wfRunHooks( 'ArticleProtect', array( &$this, &$wgUser,
$limit, $reason ) ) ) {
$dbw =& wfGetDB( DB_MASTER );
$dbw->update( 'page',
array( /* SET */
'page_touched' => $dbw->timestamp(),
'page_restrictions' => $flat
), array( /* WHERE */
'page_id' => $id
), 'Article::protect'
);
wfRunHooks( 'ArticleProtectComplete', array( &$this, &$wgUser,
$limit, $reason ) );
$log = new LogPage( 'protect' );
if( $protecting ) {
$log->addEntry( 'protect', $this->mTitle, trim( $reason . " [$flat]" ) );
} else {
$log->addEntry( 'unprotect', $this->mTitle, $reason );
}
}
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
* @access private
*/
function flattenRestrictions( $limit ) {
if( !is_array( $limit ) ) {
wfDebugDieBacktrace( 'Article::flattenRestrictions given non-array restriction set' );
}
$bits = array();
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;
$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' ) ) {
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, $fname );
if ( $latest === false ) {
$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
$maxRevisions = 20;
$authors = $this->getLastNAuthors( $maxRevisions, $latest );
if( count( $authors ) > 1 && !$confirm ) {
$skin=$wgUser->getSkin();
$wgOut->addHTML(''.wfMsg('historywarning'));
$wgOut->addHTML( $skin->historyLink() .'');
}
# 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 ) {
$fname = 'Article::getLastNAuthors';
wfProfileIn( $fname );
// 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'
), $fname, $this->getSelectOptions( array(
'ORDER BY' => 'rev_timestamp DESC',
'LIMIT' => $num
) )
);
if ( !$res ) {
wfProfileOut( $fname );
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( $fname );
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( "
\n" );
$wgOut->returnToMain( false );
}
/**
* Perform a deletion and output success or failure messages
*/
function doDelete( $reason ) {
global $wgOut, $wgUser;
$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 $wgUseSquid, $wgDeferredUpdateList;
global $wgPostCommitUpdateList, $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;
}
$u = new SiteStatsUpdate( 0, 1, -(int)$this->isCountable( $this->getContent() ), -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 ) );
$dbw->delete( 'templatelinks', array( 'tl_from' => $id ) );
$dbw->delete( 'externallinks', array( 'el_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;
$fname = 'Article::rollback';
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, 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;
}
$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}'",
), $fname
);
}
# 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( '' . htmlspecialchars( $newComment ) . "
\n
\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
* @access 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.
* Every 1000th edit, prune the recent changes table.
* @access private
* @param string $text
*/
function editUpdates( $text, $summary, $minoredit, $timestamp_of_pagechange, $newid) {
global $wgDeferredUpdateList, $wgMessageCache, $wgUser, $wgParser;
$fname = 'Article::editUpdates';
wfProfileIn( $fname );
# 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( $fname );
return;
}
$u = new SiteStatsUpdate( 0, 1, $this->mGoodAdjustment, $this->mTotalAdjustment );
array_push( $wgDeferredUpdateList, $u );
$u = new SearchUpdate( $id, $title, $text );
array_push( $wgDeferredUpdateList, $u );
# If this is another user's talk page, update newtalk
if ($this->mTitle->getNamespace() == NS_USER_TALK && $shortTitle != $wgUser->getName()) {
if (wfRunHooks('ArticleEditUpdateNewTalk', array(&$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( $fname );
}
/**
* Generate the navigation links when browsing through an article revisions
* It shows the information as:
* Revision as of ; 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 )) {
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 page_touched and returns a value indicating if it should be used
*
*/
function checkTouched() {
$fname = 'Article::checkTouched';
if( !$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 ) {
$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 ENGINE=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 );
}
}
/**
* Purge caches on page update etc
*/
function onArticleEdit( $title ) {
global $wgUseSquid, $wgPostCommitUpdateList, $wgUseFileCache;
$urls = array();
// Template namespace? Purge all articles linking here.
// FIXME: When a templatelinks table arrives, use it for all includes.
if ( $title->getNamespace() == NS_TEMPLATE) {
$titles = $title->getLinksTo();
Title::touchArray( $titles );
if ( $wgUseSquid ) {
foreach ( $titles as $link ) {
$urls[] = $link->getInternalURL();
}
}
}
# Squid updates
if ( $wgUseSquid ) {
$urls = array_merge( $urls, $title->getSquidURLs() );
$u = new SquidUpdate( $urls );
array_push( $wgPostCommitUpdateList, $u );
}
# File cache
if ( $wgUseFileCache ) {
$cm = new CacheManager( $title );
@unlink( $cm->fileCacheName() );
}
}
/**#@-*/
/**
* Info about this page
* Called for ?action=info when $wgAllowPageInfo is on.
*
* @access public
*/
function info() {
global $wgLang, $wgOut, $wgAllowPageInfo, $wgUser;
$fname = 'Article::info';
if ( !$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 ) {
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,
$fname,
$this->getSelectOptions() );
$pageInfo = $this->pageCountInfo( $page );
$talkInfo = $this->pageCountInfo( $page->getTalkPage() );
$wgOut->addHTML( "- " . wfMsg("numwatchers", $wgLang->formatNum( $numwatchers ) ) . '
' );
$wgOut->addHTML( "- " . wfMsg('numedits', $wgLang->formatNum( $pageInfo['edits'] ) ) . '
');
if( $talkInfo ) {
$wgOut->addHTML( '- ' . wfMsg("numtalkedits", $wgLang->formatNum( $talkInfo['edits'] ) ) . '
');
}
$wgOut->addHTML( '- ' . wfMsg("numauthors", $wgLang->formatNum( $pageInfo['authors'] ) ) . '
' );
if( $talkInfo ) {
$wgOut->addHTML( '- ' . wfMsg('numtalkauthors', $wgLang->formatNum( $talkInfo['authors'] ) ) . '
' );
}
$wgOut->addHTML( '
' );
}
}
/**
* 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 =& wfGetDB( 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 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;
}
}
?>