mTitle =& $title;
$this->mOldId = $oldId;
}
/**
* Constructor from an article article
* @param $id The article ID to load
*/
public static function newFromID( $id ) {
$t = Title::newFromID( $id );
# FIXME: doesn't inherit right
return $t == null ? null : new self( $t );
# return $t == null ? null : new static( $t ); // PHP 5.3
}
/**
* Tell the page view functions that this view was redirected
* from another page on the wiki.
* @param $from Title object.
*/
public function setRedirectedFrom( $from ) {
$this->mRedirectedFrom = $from;
}
/**
* If this page is a redirect, get its target
*
* The target will be fetched from the redirect table if possible.
* If this page doesn't have an entry there, call insertRedirect()
* @return mixed Title object, or null if this page is not a redirect
*/
public function getRedirectTarget() {
if ( !$this->mTitle || !$this->mTitle->isRedirect() )
return null;
if ( !is_null( $this->mRedirectTarget ) )
return $this->mRedirectTarget;
# Query the redirect table
$dbr = wfGetDB( DB_SLAVE );
$row = $dbr->selectRow( 'redirect',
array( 'rd_namespace', 'rd_title' ),
array( 'rd_from' => $this->getID() ),
__METHOD__
);
if ( $row ) {
return $this->mRedirectTarget = Title::makeTitle( $row->rd_namespace, $row->rd_title );
}
# This page doesn't have an entry in the redirect table
return $this->mRedirectTarget = $this->insertRedirect();
}
/**
* Insert an entry for this page into the redirect table.
*
* Don't call this function directly unless you know what you're doing.
* @return Title object
*/
public function insertRedirect() {
$retval = Title::newFromRedirect( $this->getContent() );
if ( !$retval ) {
return null;
}
$dbw = wfGetDB( DB_MASTER );
$dbw->replace( 'redirect', array( 'rd_from' ),
array(
'rd_from' => $this->getID(),
'rd_namespace' => $retval->getNamespace(),
'rd_title' => $retval->getDBkey()
),
__METHOD__
);
return $retval;
}
/**
* Get the Title object this page redirects to
*
* @return mixed false, Title of in-wiki target, or string with URL
*/
public function followRedirect() {
$text = $this->getContent();
return $this->followRedirectText( $text );
}
/**
* Get the Title object this text redirects to
*
* @return mixed false, Title of in-wiki target, or string with URL
*/
public function followRedirectText( $text ) {
$rt = Title::newFromRedirectRecurse( $text ); // recurse through to only get the final target
# 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 handle 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->isSpecial( 'Userlogout' ) ) {
// rolleyes
} else {
return $rt->getFullURL();
}
}
return $rt;
}
}
// No or invalid redirect
return false;
}
/**
* get the title object of the article
*/
public function getTitle() {
return $this->mTitle;
}
/**
* Clear the object
* @private
*/
public 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->mRedirectTarget = 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;
$this->mPreparedEdit = false;
}
/**
* Note that getContent/loadContent do not follow redirects anymore.
* If you need to fetch redirectable content easily, try
* the shortcut in Article::followContent()
*
* @return Return the text of this revision
*/
public function getContent() {
global $wgUser, $wgContLang, $wgOut, $wgMessageCache;
wfProfileIn( __METHOD__ );
if ( $this->getID() === 0 ) {
# If this is a MediaWiki:x message, then load the messages
# and return the message value for x.
if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
# If this is a system message, get the default text.
list( $message, $lang ) = $wgMessageCache->figureMessage( $wgContLang->lcfirst( $this->mTitle->getText() ) );
$wgMessageCache->loadAllMessages( $lang );
$text = wfMsgGetKey( $message, false, $lang, false );
if ( wfEmptyMsg( $message, $text ) )
$text = '';
} else {
$text = wfMsgExt( $wgUser->isLoggedIn() ? 'noarticletext' : 'noarticletextanon', 'parsemag' );
}
wfProfileOut( __METHOD__ );
return $text;
} else {
$this->loadContent();
wfProfileOut( __METHOD__ );
return $this->mContent;
}
}
/**
* Get the text of the current revision. No side-effects...
*
* @return Return the text of the current revision
*/
public function getRawText() {
// Check process cache for current revision
if ( $this->mContentLoaded && $this->mOldId == 0 ) {
return $this->mContent;
}
$rev = Revision::newFromTitle( $this->mTitle );
$text = $rev ? $rev->getRawText() : false;
return $text;
}
/**
* This function returns the text of a section, specified by a number ($section).
* A section is text under a heading like == Heading == or \Heading\, 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
*/
public function getSection( $text, $section ) {
global $wgParser;
return $wgParser->getSection( $text, $section );
}
/**
* Get the text that needs to be saved in order to undo all revisions
* between $undo and $undoafter. Revisions must belong to the same page,
* must exist and must not be deleted
* @param $undo Revision
* @param $undoafter Revision Must be an earlier revision than $undo
* @return mixed string on success, false on failure
*/
public function getUndoText( Revision $undo, Revision $undoafter = null ) {
$undo_text = $undo->getText();
$undoafter_text = $undoafter->getText();
$cur_text = $this->getContent();
if ( $cur_text == $undo_text ) {
# No use doing a merge if it's just a straight revert.
return $undoafter_text;
}
$undone_text = '';
if ( !wfMerge( $undo_text, $undoafter_text, $cur_text, $undone_text ) )
return false;
return $undone_text;
}
/**
* @return int The oldid of the article that is to be shown, 0 for the
* current revision
*/
public 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
*/
public 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 = $previd;
}
}
}
if ( !$oldid ) {
$oldid = 0;
}
return $oldid;
}
/**
* Load the revision (including text) into this object
*/
function loadContent() {
if ( $this->mContentLoaded ) return;
wfProfileIn( __METHOD__ );
# 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.
$this->mOldId = $oldid;
$this->fetchContent( $oldid );
wfProfileOut( __METHOD__ );
}
/**
* Fetch a page record with the given conditions
* @param $dbr Database object
* @param $conditions Array
*/
protected 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,
$conditions,
__METHOD__
);
wfRunHooks( 'ArticlePageDataAfter', array( &$this, &$row ) );
return $row ;
}
/**
* @param $dbr Database object
* @param $title Title object
*/
public function pageDataFromTitle( $dbr, $title ) {
return $this->pageData( $dbr, array(
'page_namespace' => $title->getNamespace(),
'page_title' => $title->getDBkey() ) );
}
/**
* @param $dbr Database
* @param $id Integer
*/
protected function pageDataFromId( $dbr, $id ) {
return $this->pageData( $dbr, array( 'page_id' => $id ) );
}
/**
* Set the general counter, title etc data loaded from
* some source.
*
* @param $data Database row object or "fromdb"
*/
public function loadPageData( $data = 'fromdb' ) {
if ( $data === 'fromdb' ) {
$dbr = wfGetDB( DB_MASTER );
$data = $this->pageDataFromId( $dbr, $this->getId() );
}
$lc = LinkCache::singleton();
if ( $data ) {
$lc->addGoodLinkObj( $data->page_id, $this->mTitle, $data->page_len, $data->page_is_redirect );
$this->mTitle->mArticleID = intval( $data->page_id );
# Old-fashioned restrictions
$this->mTitle->loadRestrictions( $data->page_restrictions );
$this->mCounter = intval( $data->page_counter );
$this->mTouched = wfTimestamp( TS_MW, $data->page_touched );
$this->mIsRedirect = intval( $data->page_is_redirect );
$this->mLatest = intval( $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 $oldid Int: 0 for whatever the latest revision is
* @return string
*/
function fetchContent( $oldid = 0 ) {
if ( $this->mContentLoaded ) {
return $this->mContent;
}
$dbr = wfGetDB( DB_MASTER );
# Pre-fill content with error message so that if something
# fails we'll have something telling us what we intended.
$t = $this->mTitle->getPrefixedText();
$d = $oldid ? wfMsgExt( 'missingarticle-rev', array( 'escape' ), $oldid ) : '';
$this->mContent = wfMsgNoTrans( 'missing-article', $t, $d ) ;
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( $revision ) ) {
wfDebug( __METHOD__ . " failed to retrieve current page, rev_id {$this->mLatest}\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->getText( Revision::FOR_THIS_USER ); // Loads if user is allowed
$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
*/
public function forUpdate( $x = null ) {
return wfSetVar( $this->mForUpdate, $x );
}
/**
* Get the database which should be used for reads
*
* @return Database
* @deprecated - just call wfGetDB( DB_MASTER ) instead
*/
function getDB() {
wfDeprecated( __METHOD__ );
return wfGetDB( DB_MASTER );
}
/**
* Get options for all SELECT statements
*
* @param $options Array: an optional options array which'll be appended to
* the default
* @return Array: options
*/
protected function getSelectOptions( $options = '' ) {
if ( $this->mForUpdate ) {
if ( is_array( $options ) ) {
$options[] = 'FOR UPDATE';
} else {
$options = 'FOR UPDATE';
}
}
return $options;
}
/**
* @return int Page ID
*/
public function getID() {
if ( $this->mTitle ) {
return $this->mTitle->getArticleID();
} else {
return 0;
}
}
/**
* @return bool Whether or not the page exists in the database
*/
public function exists() {
return $this->getId() > 0;
}
/**
* Check if this page is something we're going to be showing
* some sort of sensible content for. If we return false, page
* views (plain action=view) will return an HTTP 404 response,
* so spiders and robots can know they're following a bad link.
*
* @return bool
*/
public function hasViewableContent() {
return $this->exists() || $this->mTitle->isAlwaysKnown();
}
/**
* @return int The view count for the page
*/
public 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 ),
__METHOD__,
$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
*/
public function isCountable( $text ) {
global $wgUseCommaCount;
$token = $wgUseCommaCount ? ',' : '[[';
return $this->mTitle->isContentPage() && !$this->isRedirect( $text ) && in_string( $token, $text );
}
/**
* Tests if the article text represents a redirect
*
* @param $text String: FIXME
* @return bool
*/
public function isRedirect( $text = false ) {
if ( $text === false ) {
if ( $this->mDataLoaded ) {
return $this->mIsRedirect;
}
// Apparently loadPageData was never called
$this->loadContent();
$titleObj = Title::newFromRedirectRecurse( $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
*/
public function isCurrent() {
# If no oldid, this is the current version.
if ( $this->getOldID() == 0 ) {
return true;
}
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.
*/
protected 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( wfGetDB( DB_MASTER ), $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 = $this->mLastRevision->getId();
}
}
public function getTimestamp() {
// Check if the field has been filled by ParserCache::get()
if ( !$this->mTimestamp ) {
$this->loadLastEdit();
}
return wfTimestamp( TS_MW, $this->mTimestamp );
}
public function getUser() {
$this->loadLastEdit();
return $this->mUser;
}
public function getUserText() {
$this->loadLastEdit();
return $this->mUserText;
}
public function getComment() {
$this->loadLastEdit();
return $this->mComment;
}
public function getMinorEdit() {
$this->loadLastEdit();
return $this->mMinorEdit;
}
/* Use this to fetch the rev ID used on page views */
public function getRevIdFetched() {
$this->loadLastEdit();
return $this->mRevIdFetched;
}
/**
* @param $limit Integer: default 0.
* @param $offset Integer: default 0.
*/
public function getContributors( $limit = 0, $offset = 0 ) {
# XXX: this is expensive; cache this info somewhere.
$dbr = wfGetDB( DB_SLAVE );
$revTable = $dbr->tableName( 'revision' );
$userTable = $dbr->tableName( 'user' );
$pageId = $this->getId();
$user = $this->getUser();
if ( $user ) {
$excludeCond = "AND rev_user != $user";
} else {
$userText = $dbr->addQuotes( $this->getUserText() );
$excludeCond = "AND rev_user_text != $userText";
}
$deletedBit = $dbr->bitAnd( 'rev_deleted', Revision::DELETED_USER ); // username hidden?
$sql = "SELECT {$userTable}.*, rev_user_text as user_name, MAX(rev_timestamp) as timestamp
FROM $revTable LEFT JOIN $userTable ON rev_user = user_id
WHERE rev_page = $pageId
$excludeCond
AND $deletedBit = 0
GROUP BY rev_user, rev_user_text
ORDER BY timestamp DESC";
if ( $limit > 0 )
$sql = $dbr->limitResult( $sql, $limit, $offset );
$sql .= ' ' . $this->getSelectOptions();
$res = $dbr->query( $sql, __METHOD__ );
return new UserArrayFromResult( $res );
}
/**
* This is the default action of the index.php entry point: just view the
* page of the given title.
*/
public function view() {
global $wgUser, $wgOut, $wgRequest, $wgContLang;
global $wgEnableParserCache, $wgStylePath, $wgParser;
global $wgUseTrackbacks, $wgUseFileCache;
wfProfileIn( __METHOD__ );
# Get variables from query string
$oldid = $this->getOldID();
$parserCache = ParserCache::singleton();
$parserOptions = clone $this->getParserOptions();
# Render printable version, use printable version cache
if ( $wgOut->isPrintable() ) {
$parserOptions->setIsPrintable( true );
}
# Try client and file cache
if ( $oldid === 0 && $this->checkTouched() ) {
global $wgUseETag;
if ( $wgUseETag ) {
$wgOut->setETag( $parserCache->getETag( $this, $parserOptions ) );
}
# Is is client cached?
if ( $wgOut->checkLastModified( $this->getTouched() ) ) {
wfDebug( __METHOD__ . ": done 304\n" );
wfProfileOut( __METHOD__ );
return;
# Try file cache
} else if ( $wgUseFileCache && $this->tryFileCache() ) {
wfDebug( __METHOD__ . ": done file cache\n" );
# tell wgOut that output is taken care of
$wgOut->disable();
$this->viewUpdates();
wfProfileOut( __METHOD__ );
return;
}
}
$sk = $wgUser->getSkin();
# getOldID may want us to redirect somewhere else
if ( $this->mRedirectUrl ) {
$wgOut->redirect( $this->mRedirectUrl );
wfDebug( __METHOD__ . ": redirecting due to oldid\n" );
wfProfileOut( __METHOD__ );
return;
}
$wgOut->setArticleFlag( true );
# Set page title (may be overridden by DISPLAYTITLE)
$wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
# If we got diff in the query, we want to see a diff page instead of the article.
if ( !is_null( $wgRequest->getVal( 'diff' ) ) ) {
wfDebug( __METHOD__ . ": showing diff page\n" );
$this->showDiffPage();
wfProfileOut( __METHOD__ );
return;
}
# Allow frames by default
$wgOut->allowClickjacking();
# Should the parser cache be used?
$useParserCache = $this->useParserCache( $oldid );
wfDebug( 'Article::view using parser cache: ' . ( $useParserCache ? 'yes' : 'no' ) . "\n" );
if ( $wgUser->getOption( 'stubthreshold' ) ) {
wfIncrStats( 'pcache_miss_stub' );
}
$wasRedirected = $this->showRedirectedFromHeader();
$this->showNamespaceHeader();
# Iterate through the possible ways of constructing the output text.
# Keep going until $outputDone is set, or we run out of things to do.
$pass = 0;
$outputDone = false;
$this->mParserOutput = false;
while ( !$outputDone && ++$pass ) {
switch( $pass ) {
case 1:
wfRunHooks( 'ArticleViewHeader', array( &$this, &$outputDone, &$useParserCache ) );
break;
case 2:
# Try the parser cache
if ( $useParserCache ) {
$this->mParserOutput = $parserCache->get( $this, $parserOptions );
if ( $this->mParserOutput !== false ) {
wfDebug( __METHOD__ . ": showing parser cache contents\n" );
$wgOut->addParserOutput( $this->mParserOutput );
# Ensure that UI elements requiring revision ID have
# the correct version information.
$wgOut->setRevisionId( $this->mLatest );
$outputDone = true;
}
}
break;
case 3:
$text = $this->getContent();
if ( $text === false || $this->getID() == 0 ) {
wfDebug( __METHOD__ . ": showing missing article\n" );
$this->showMissingArticle();
wfProfileOut( __METHOD__ );
return;
}
# Another whitelist check in case oldid is altering the title
if ( !$this->mTitle->userCanRead() ) {
wfDebug( __METHOD__ . ": denied on secondary read check\n" );
$wgOut->loginToUse();
$wgOut->output();
$wgOut->disable();
wfProfileOut( __METHOD__ );
return;
}
# Are we looking at an old revision
if ( $oldid && !is_null( $this->mRevision ) ) {
$this->setOldSubtitle( $oldid );
if ( !$this->showDeletedRevisionHeader() ) {
wfDebug( __METHOD__ . ": cannot view deleted revision\n" );
wfProfileOut( __METHOD__ );
return;
}
# If this "old" version is the current, then try the parser cache...
if ( $oldid === $this->getLatest() && $this->useParserCache( false ) ) {
$this->mParserOutput = $parserCache->get( $this, $parserOptions );
if ( $this->mParserOutput ) {
wfDebug( __METHOD__ . ": showing parser cache for current rev permalink\n" );
$wgOut->addParserOutput( $this->mParserOutput );
$wgOut->setRevisionId( $this->mLatest );
$this->showViewFooter();
$this->viewUpdates();
wfProfileOut( __METHOD__ );
return;
}
}
}
# Ensure that UI elements requiring revision ID have
# the correct version information.
$wgOut->setRevisionId( $this->getRevIdFetched() );
# Pages containing custom CSS or JavaScript get special treatment
if ( $this->mTitle->isCssOrJsPage() || $this->mTitle->isCssJsSubpage() ) {
wfDebug( __METHOD__ . ": showing CSS/JS source\n" );
$this->showCssOrJsPage();
$outputDone = true;
} else if ( $rt = Title::newFromRedirectArray( $text ) ) {
wfDebug( __METHOD__ . ": showing redirect=no page\n" );
# Viewing a redirect page (e.g. with parameter redirect=no)
# Don't append the subtitle if this was an old revision
$wgOut->addHTML( $this->viewRedirect( $rt, !$wasRedirected && $this->isCurrent() ) );
# Parse just to get categories, displaytitle, etc.
$this->mParserOutput = $wgParser->parse( $text, $this->mTitle, $parserOptions );
$wgOut->addParserOutputNoText( $this->mParserOutput );
$outputDone = true;
}
break;
case 4:
# Run the parse, protected by a pool counter
wfDebug( __METHOD__ . ": doing uncached parse\n" );
$key = $parserCache->getKey( $this, $parserOptions );
$poolCounter = PoolCounter::factory( 'Article::view', $key );
$dirtyCallback = $useParserCache ? array( $this, 'tryDirtyCache' ) : false;
$status = $poolCounter->executeProtected( array( $this, 'doViewParse' ), $dirtyCallback );
if ( !$status->isOK() ) {
# Connection or timeout error
$this->showPoolError( $status );
wfProfileOut( __METHOD__ );
return;
} else {
$outputDone = true;
}
break;
# Should be unreachable, but just in case...
default:
break 2;
}
}
# Adjust the title if it was set by displaytitle, -{T|}- or language conversion
if ( $this->mParserOutput ) {
$titleText = $this->mParserOutput->getTitleText();
if ( strval( $titleText ) !== '' ) {
$wgOut->setPageTitle( $titleText );
}
}
# For the main page, overwrite the element with the con-
# tents of 'pagetitle-view-mainpage' instead of the default (if
# that's not empty).
if ( $this->mTitle->equals( Title::newMainPage() )
&& ( $m = wfMsgForContent( 'pagetitle-view-mainpage' ) ) !== '' )
{
$wgOut->setHTMLTitle( $m );
}
# Now that we've filled $this->mParserOutput, we know whether
# there are any __NOINDEX__ tags on the page
$policy = $this->getRobotPolicy( 'view' );
$wgOut->setIndexPolicy( $policy['index'] );
$wgOut->setFollowPolicy( $policy['follow'] );
$this->showViewFooter();
$this->viewUpdates();
wfProfileOut( __METHOD__ );
}
/**
* Show a diff page according to current request variables. For use within
* Article::view() only, other callers should use the DifferenceEngine class.
*/
public function showDiffPage() {
global $wgOut, $wgRequest, $wgUser;
$diff = $wgRequest->getVal( 'diff' );
$rcid = $wgRequest->getVal( 'rcid' );
$diffOnly = $wgRequest->getBool( 'diffonly', $wgUser->getOption( 'diffonly' ) );
$purge = $wgRequest->getVal( 'action' ) == 'purge';
$unhide = $wgRequest->getInt( 'unhide' ) == 1;
$oldid = $this->getOldID();
$de = new DifferenceEngine( $this->mTitle, $oldid, $diff, $rcid, $purge, $unhide );
// DifferenceEngine directly fetched the revision:
$this->mRevIdFetched = $de->mNewid;
$de->showDiffPage( $diffOnly );
// Needed to get the page's current revision
$this->loadPageData();
if ( $diff == 0 || $diff == $this->mLatest ) {
# Run view updates for current revision only
$this->viewUpdates();
}
}
/**
* Show a page view for a page formatted as CSS or JavaScript. To be called by
* Article::view() only.
*
* This is hooked by SyntaxHighlight_GeSHi to do syntax highlighting of these
* page views.
*/
public function showCssOrJsPage() {
global $wgOut;
$wgOut->addHTML( wfMsgExt( 'clearyourcache', 'parse' ) );
// Give hooks a chance to customise the output
if ( wfRunHooks( 'ShowRawCssJs', array( $this->mContent, $this->mTitle, $wgOut ) ) ) {
// Wrap the whole lot in a <pre> and don't parse
$m = array();
preg_match( '!\.(css|js)$!u', $this->mTitle->getText(), $m );
$wgOut->addHTML( "<pre class=\"mw-code mw-{$m[1]}\" dir=\"ltr\">\n" );
$wgOut->addHTML( htmlspecialchars( $this->mContent ) );
$wgOut->addHTML( "\n</pre>\n" );
}
}
/**
* Get the robot policy to be used for the current action=view request.
* @return String the policy that should be set
* @deprecated use getRobotPolicy() instead, which returns an associative
* array
*/
public function getRobotPolicyForView() {
wfDeprecated( __FUNC__ );
$policy = $this->getRobotPolicy( 'view' );
return $policy['index'] . ',' . $policy['follow'];
}
/**
* Get the robot policy to be used for the current view
* @param $action String the action= GET parameter
* @return Array the policy that should be set
* TODO: actions other than 'view'
*/
public function getRobotPolicy( $action ) {
global $wgOut, $wgArticleRobotPolicies, $wgNamespaceRobotPolicies;
global $wgDefaultRobotPolicy, $wgRequest;
$ns = $this->mTitle->getNamespace();
if ( $ns == NS_USER || $ns == NS_USER_TALK ) {
# Don't index user and user talk pages for blocked users (bug 11443)
if ( !$this->mTitle->isSubpage() ) {
$block = new Block();
if ( $block->load( $this->mTitle->getText() ) ) {
return array( 'index' => 'noindex',
'follow' => 'nofollow' );
}
}
}
if ( $this->getID() === 0 || $this->getOldID() ) {
# Non-articles (special pages etc), and old revisions
return array( 'index' => 'noindex',
'follow' => 'nofollow' );
} elseif ( $wgOut->isPrintable() ) {
# Discourage indexing of printable versions, but encourage following
return array( 'index' => 'noindex',
'follow' => 'follow' );
} elseif ( $wgRequest->getInt( 'curid' ) ) {
# For ?curid=x urls, disallow indexing
return array( 'index' => 'noindex',
'follow' => 'follow' );
}
# Otherwise, construct the policy based on the various config variables.
$policy = self::formatRobotPolicy( $wgDefaultRobotPolicy );
if ( isset( $wgNamespaceRobotPolicies[$ns] ) ) {
# Honour customised robot policies for this namespace
$policy = array_merge( $policy,
self::formatRobotPolicy( $wgNamespaceRobotPolicies[$ns] ) );
}
if ( $this->mTitle->canUseNoindex() && is_object( $this->mParserOutput ) && $this->mParserOutput->getIndexPolicy() ) {
# __INDEX__ and __NOINDEX__ magic words, if allowed. Incorporates
# a final sanity check that we have really got the parser output.
$policy = array_merge( $policy,
array( 'index' => $this->mParserOutput->getIndexPolicy() ) );
}
if ( isset( $wgArticleRobotPolicies[$this->mTitle->getPrefixedText()] ) ) {
# (bug 14900) site config can override user-defined __INDEX__ or __NOINDEX__
$policy = array_merge( $policy,
self::formatRobotPolicy( $wgArticleRobotPolicies[$this->mTitle->getPrefixedText()] ) );
}
return $policy;
}
/**
* Converts a String robot policy into an associative array, to allow
* merging of several policies using array_merge().
* @param $policy Mixed, returns empty array on null/false/'', transparent
* to already-converted arrays, converts String.
* @return associative Array: 'index' => <indexpolicy>, 'follow' => <followpolicy>
*/
public static function formatRobotPolicy( $policy ) {
if ( is_array( $policy ) ) {
return $policy;
} elseif ( !$policy ) {
return array();
}
$policy = explode( ',', $policy );
$policy = array_map( 'trim', $policy );
$arr = array();
foreach ( $policy as $var ) {
if ( in_array( $var, array( 'index', 'noindex' ) ) ) {
$arr['index'] = $var;
} elseif ( in_array( $var, array( 'follow', 'nofollow' ) ) ) {
$arr['follow'] = $var;
}
}
return $arr;
}
/**
* If this request is a redirect view, send "redirected from" subtitle to
* $wgOut. Returns true if the header was needed, false if this is not a
* redirect view. Handles both local and remote redirects.
*/
public function showRedirectedFromHeader() {
global $wgOut, $wgUser, $wgRequest, $wgRedirectSources;
$rdfrom = $wgRequest->getVal( 'rdfrom' );
$sk = $wgUser->getSkin();
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 ) ) ) {
$redir = $sk->link(
$this->mRedirectedFrom,
null,
array(),
array( 'redirect' => 'no' ),
array( 'known', 'noclasses' )
);
$s = wfMsgExt( 'redirectedfrom', array( 'parseinline', 'replaceafter' ), $redir );
$wgOut->setSubtitle( $s );
// Set the fragment if one was specified in the redirect
if ( strval( $this->mTitle->getFragment() ) != '' ) {
$fragment = Xml::escapeJsString( $this->mTitle->getFragmentForURL() );
$wgOut->addInlineScript( "redirectToFragment(\"$fragment\");" );
}
// Add a <link rel="canonical"> tag
$wgOut->addLink( array( 'rel' => 'canonical',
'href' => $this->mTitle->getLocalURL() )
);
return true;
}
} elseif ( $rdfrom ) {
// This is an externally redirected view, from some other wiki.
// If it was reported from a trusted site, supply a backlink.
if ( $wgRedirectSources && preg_match( $wgRedirectSources, $rdfrom ) ) {
$redir = $sk->makeExternalLink( $rdfrom, $rdfrom );
$s = wfMsgExt( 'redirectedfrom', array( 'parseinline', 'replaceafter' ), $redir );
$wgOut->setSubtitle( $s );
return true;
}
}
return false;
}
/**
* Show a header specific to the namespace currently being viewed, like
* [[MediaWiki:Talkpagetext]]. For Article::view().
*/
public function showNamespaceHeader() {
global $wgOut;
if ( $this->mTitle->isTalkPage() ) {
$msg = wfMsgNoTrans( 'talkpageheader' );
if ( $msg !== '-' && !wfEmptyMsg( 'talkpageheader', $msg ) ) {
$wgOut->wrapWikiMsg( "<div class=\"mw-talkpageheader\">\n$1</div>", array( 'talkpageheader' ) );
}
}
}
/**
* Show the footer section of an ordinary page view
*/
public function showViewFooter() {
global $wgOut, $wgUseTrackbacks, $wgRequest;
# check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
if ( $this->mTitle->getNamespace() == NS_USER_TALK && IP::isValid( $this->mTitle->getText() ) ) {
$wgOut->addWikiMsg( 'anontalkpagetext' );
}
# If we have been passed an &rcid= parameter, we want to give the user a
# chance to mark this new article as patrolled.
$this->showPatrolFooter();
# Trackbacks
if ( $wgUseTrackbacks ) {
$this->addTrackbacks();
}
}
/**
* If patrol is possible, output a patrol UI box. This is called from the
* footer section of ordinary page views. If patrol is not possible or not
* desired, does nothing.
*/
public function showPatrolFooter() {
global $wgOut, $wgRequest, $wgUser;
$rcid = $wgRequest->getVal( 'rcid' );
if ( !$rcid || !$this->mTitle->exists() || !$this->mTitle->quickUserCan( 'patrol' ) ) {
return;
}
$sk = $wgUser->getSkin();
$wgOut->addHTML(
"<div class='patrollink'>" .
wfMsgHtml(
'markaspatrolledlink',
$sk->link(
$this->mTitle,
wfMsgHtml( 'markaspatrolledtext' ),
array(),
array(
'action' => 'markpatrolled',
'rcid' => $rcid
),
array( 'known', 'noclasses' )
)
) .
'</div>'
);
}
/**
* Show the error text for a missing article. For articles in the MediaWiki
* namespace, show the default message text. To be called from Article::view().
*/
public function showMissingArticle() {
global $wgOut, $wgRequest, $wgUser;
# Show info in user (talk) namespace. Does the user exist? Is he blocked?
if ( $this->mTitle->getNamespace() == NS_USER || $this->mTitle->getNamespace() == NS_USER_TALK ) {
$parts = explode( '/', $this->mTitle->getText() );
$rootPart = $parts[0];
$user = User::newFromName( $rootPart, false /* allow IP users*/ );
$ip = User::isIP( $rootPart );
if ( !$user->isLoggedIn() && !$ip ) { # User does not exist
$wgOut->wrapWikiMsg( "<div class=\"mw-userpage-userdoesnotexist error\">\n\$1</div>",
array( 'userpage-userdoesnotexist-view', $rootPart ) );
} else if ( $user->isBlocked() ) { # Show log extract if the user is currently blocked
LogEventsList::showLogExtract(
$wgOut,
'block',
$user->getUserPage()->getPrefixedText(),
'',
array(
'lim' => 1,
'showIfEmpty' => false,
'msgKey' => array(
'blocked-notice-logextract',
$user->getName() # Support GENDER in notice
)
)
);
}
}
wfRunHooks( 'ShowMissingArticle', array( $this ) );
# Show delete and move logs
LogEventsList::showLogExtract( $wgOut, array( 'delete', 'move' ), $this->mTitle->getPrefixedText(), '',
array( 'lim' => 10,
'conds' => array( "log_action != 'revision'" ),
'showIfEmpty' => false,
'msgKey' => array( 'moveddeleted-notice' ) )
);
# Show error message
$oldid = $this->getOldID();
if ( $oldid ) {
$text = wfMsgNoTrans( 'missing-article',
$this->mTitle->getPrefixedText(),
wfMsgNoTrans( 'missingarticle-rev', $oldid ) );
} elseif ( $this->mTitle->getNamespace() === NS_MEDIAWIKI ) {
// Use the default message text
$text = $this->getContent();
} else {
$createErrors = $this->mTitle->getUserPermissionsErrors( 'create', $wgUser );
$editErrors = $this->mTitle->getUserPermissionsErrors( 'edit', $wgUser );
$errors = array_merge( $createErrors, $editErrors );
if ( !count( $errors ) )
$text = wfMsgNoTrans( 'noarticletext' );
else
$text = wfMsgNoTrans( 'noarticletext-nopermission' );
}
$text = "<div class='noarticletext'>\n$text\n</div>";
if ( !$this->hasViewableContent() ) {
// If there's no backing content, send a 404 Not Found
// for better machine handling of broken links.
$wgRequest->response()->header( "HTTP/1.x 404 Not Found" );
}
$wgOut->addWikiText( $text );
}
/**
* If the revision requested for view is deleted, check permissions.
* Send either an error message or a warning header to $wgOut.
* Returns true if the view is allowed, false if not.
*/
public function showDeletedRevisionHeader() {
global $wgOut, $wgRequest;
if ( !$this->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
// Not deleted
return true;
}
// If the user is not allowed to see it...
if ( !$this->mRevision->userCan( Revision::DELETED_TEXT ) ) {
$wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1</div>\n",
'rev-deleted-text-permission' );
return false;
// If the user needs to confirm that they want to see it...
} else if ( $wgRequest->getInt( 'unhide' ) != 1 ) {
# Give explanation and add a link to view the revision...
$oldid = intval( $this->getOldID() );
$link = $this->mTitle->getFullUrl( "oldid={$oldid}&unhide=1" );
$msg = $this->mRevision->isDeleted( Revision::DELETED_RESTRICTED ) ?
'rev-suppressed-text-unhide' : 'rev-deleted-text-unhide';
$wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1</div>\n",
array( $msg, $link ) );
return false;
// We are allowed to see...
} else {
$msg = $this->mRevision->isDeleted( Revision::DELETED_RESTRICTED ) ?
'rev-suppressed-text-view' : 'rev-deleted-text-view';
$wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1</div>\n", $msg );
return true;
}
}
/*
* Should the parser cache be used?
*/
public function useParserCache( $oldid ) {
global $wgUser, $wgEnableParserCache;
return $wgEnableParserCache
&& intval( $wgUser->getOption( 'stubthreshold' ) ) == 0
&& $this->exists()
&& empty( $oldid )
&& !$this->mTitle->isCssOrJsPage()
&& !$this->mTitle->isCssJsSubpage();
}
/**
* Execute the uncached parse for action=view
*/
public function doViewParse() {
global $wgOut;
$oldid = $this->getOldID();
$useParserCache = $this->useParserCache( $oldid );
$parserOptions = clone $this->getParserOptions();
# Render printable version, use printable version cache
$parserOptions->setIsPrintable( $wgOut->isPrintable() );
# Don't show section-edit links on old revisions... this way lies madness.
$parserOptions->setEditSection( $this->isCurrent() );
$useParserCache = $this->useParserCache( $oldid );
$this->outputWikiText( $this->getContent(), $useParserCache, $parserOptions );
}
/**
* Try to fetch an expired entry from the parser cache. If it is present,
* output it and return true. If it is not present, output nothing and
* return false. This is used as a callback function for
* PoolCounter::executeProtected().
*/
public function tryDirtyCache() {
global $wgOut;
$parserCache = ParserCache::singleton();
$options = $this->getParserOptions();
$options->setIsPrintable( $wgOut->isPrintable() );
$output = $parserCache->getDirty( $this, $options );
if ( $output ) {
wfDebug( __METHOD__ . ": sending dirty output\n" );
wfDebugLog( 'dirty', "dirty output " . $parserCache->getKey( $this, $options ) . "\n" );
$wgOut->setSquidMaxage( 0 );
$this->mParserOutput = $output;
$wgOut->addParserOutput( $output );
$wgOut->addHTML( "<!-- parser cache is expired, sending anyway due to pool overload-->\n" );
return true;
} else {
wfDebugLog( 'dirty', "dirty missing\n" );
wfDebug( __METHOD__ . ": no dirty cache\n" );
return false;
}
}
/**
* Show an error page for an error from the pool counter.
* @param $status Status
*/
public function showPoolError( $status ) {
global $wgOut;
$wgOut->clearHTML(); // for release() errors
$wgOut->enableClientCache( false );
$wgOut->setRobotPolicy( 'noindex,nofollow' );
$wgOut->addWikiText(
'<div class="errorbox">' .
$status->getWikiText( false, 'view-pool-error' ) .
'</div>'
);
}
/**
* View redirect
* @param $target Title object or Array of destination(s) to redirect
* @param $appendSubtitle Boolean [optional]
* @param $forceKnown Boolean: should the image be shown as a bluelink regardless of existence?
*/
public function viewRedirect( $target, $appendSubtitle = true, $forceKnown = false ) {
global $wgOut, $wgContLang, $wgStylePath, $wgUser;
# Display redirect
if ( !is_array( $target ) ) {
$target = array( $target );
}
$imageDir = $wgContLang->getDir();
$imageUrl = $wgStylePath . '/common/images/redirect' . $imageDir . '.png';
$imageUrl2 = $wgStylePath . '/common/images/nextredirect' . $imageDir . '.png';
$alt2 = $wgContLang->isRTL() ? '←' : '→'; // should -> and <- be used instead of entities?
if ( $appendSubtitle ) {
$wgOut->appendSubtitle( wfMsgHtml( 'redirectpagesub' ) );
}
$sk = $wgUser->getSkin();
// the loop prepends the arrow image before the link, so the first case needs to be outside
$title = array_shift( $target );
if ( $forceKnown ) {
$link = $sk->link(
$title,
htmlspecialchars( $title->getFullText() ),
array(),
array(),
array( 'known', 'noclasses' )
);
} else {
$link = $sk->link( $title, htmlspecialchars( $title->getFullText() ) );
}
// automatically append redirect=no to each link, since most of them are redirect pages themselves
foreach ( $target as $rt ) {
if ( $forceKnown ) {
$link .= '<img src="' . $imageUrl2 . '" alt="' . $alt2 . ' " />'
. $sk->link(
$rt,
htmlspecialchars( $rt->getFullText() ),
array(),
array(),
array( 'known', 'noclasses' )
);
} else {
$link .= '<img src="' . $imageUrl2 . '" alt="' . $alt2 . ' " />'
. $sk->link( $rt, htmlspecialchars( $rt->getFullText() ) );
}
}
return '<img src="' . $imageUrl . '" alt="#REDIRECT " />' .
'<span class="redirectText">' . $link . '</span>';
}
public function addTrackbacks() {
global $wgOut, $wgUser;
$dbr = wfGetDB( DB_SLAVE );
$tbs = $dbr->select( 'trackbacks',
array( 'tb_id', 'tb_title', 'tb_url', 'tb_ex', 'tb_name' ),
array( 'tb_page' => $this->getID() )
);
if ( !$dbr->numRows( $tbs ) ) return;
$wgOut->preventClickjacking();
$tbtext = "";
while ( $o = $dbr->fetchObject( $tbs ) ) {
$rmvtxt = "";
if ( $wgUser->isAllowed( 'trackback' ) ) {
$delurl = $this->mTitle->getFullURL( "action=deletetrackback&tbid=" .
$o->tb_id . "&token=" . urlencode( $wgUser->editToken() ) );
$rmvtxt = wfMsg( 'trackbackremove', htmlspecialchars( $delurl ) );
}
$tbtext .= "\n";
$tbtext .= wfMsg( strlen( $o->tb_ex ) ? 'trackbackexcerpt' : 'trackback',
$o->tb_title,
$o->tb_url,
$o->tb_ex,
$o->tb_name,
$rmvtxt );
}
$wgOut->wrapWikiMsg( "<div id='mw_trackbacks'>$1</div>\n", array( 'trackbackbox', $tbtext ) );
$this->mTitle->invalidateCache();
}
public function deletetrackback() {
global $wgUser, $wgRequest, $wgOut;
if ( !$wgUser->matchEditToken( $wgRequest->getVal( 'token' ) ) ) {
$wgOut->addWikiMsg( 'sessionfailure' );
return;
}
$permission_errors = $this->mTitle->getUserPermissionsErrors( 'delete', $wgUser );
if ( count( $permission_errors ) ) {
$wgOut->showPermissionsErrorPage( $permission_errors );
return;
}
$db = wfGetDB( DB_MASTER );
$db->delete( 'trackbacks', array( 'tb_id' => $wgRequest->getInt( 'tbid' ) ) );
$wgOut->addWikiMsg( 'trackbackdeleteok' );
$this->mTitle->invalidateCache();
}
public function render() {
global $wgOut;
$wgOut->setArticleBodyOnly( true );
$this->view();
}
/**
* Handle action=purge
*/
public function purge() {
global $wgUser, $wgRequest, $wgOut;
if ( $wgUser->isAllowed( 'purge' ) || $wgRequest->wasPosted() ) {
if ( wfRunHooks( 'ArticlePurge', array( &$this ) ) ) {
$this->doPurge();
$this->view();
}
} else {
$action = htmlspecialchars( $wgRequest->getRequestURL() );
$button = wfMsgExt( 'confirm_purge_button', array( 'escapenoentities' ) );
$form = "<form method=\"post\" action=\"$action\">\n" .
"<input type=\"submit\" name=\"submit\" value=\"$button\" />\n" .
"</form>\n";
$top = wfMsgExt( 'confirm-purge-top', array( 'parse' ) );
$bottom = wfMsgExt( 'confirm-purge-bottom', array( 'parse' ) );
$wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
$wgOut->setRobotPolicy( 'noindex,nofollow' );
$wgOut->addHTML( $top . $form . $bottom );
}
}
/**
* Perform the actions of a page purging
*/
public 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->commit();
// Send purge
$update = SquidUpdate::newSimplePurge( $this->mTitle );
$update->doUpdate();
}
if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
global $wgMessageCache;
if ( $this->getID() == 0 ) {
$text = false;
} else {
$text = $this->getRawText();
}
$wgMessageCache->replace( $this->mTitle->getDBkey(), $text );
}
}
/**
* 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 $dbw Database
* @return int The newly created page_id key, or false if the title already existed
* @private
*/
public function insertOn( $dbw ) {
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' => '',
'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__, 'IGNORE' );
$affected = $dbw->affectedRows();
if ( $affected ) {
$newid = $dbw->insertId();
$this->mTitle->resetArticleId( $newid );
}
wfProfileOut( __METHOD__ );
return $affected ? $newid : false;
}
/**
* Update the page record to point to a newly saved revision.
*
* @param $dbw Database object
* @param $revision Revision: For ID number, and text used to set
length and redirect status fields
* @param $lastRevision Integer: 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.
* @param $lastRevIsRedirect Boolean: if given, will optimize adding and
* removing rows in redirect table.
* @return bool true on success, false on failure
* @private
*/
public function updateRevisionOn( &$dbw, $revision, $lastRevision = null, $lastRevIsRedirect = null ) {
wfProfileIn( __METHOD__ );
$text = $revision->getText();
$rt = Title::newFromRedirect( $text );
$conditions = array( 'page_id' => $this->getId() );
if ( !is_null( $lastRevision ) ) {
# An extra check against threads stepping on each other
$conditions['page_latest'] = $lastRevision;
}
$dbw->update( 'page',
array( /* SET */
'page_latest' => $revision->getId(),
'page_touched' => $dbw->timestamp(),
'page_is_new' => ( $lastRevision === 0 ) ? 1 : 0,
'page_is_redirect' => $rt !== null ? 1 : 0,
'page_len' => strlen( $text ),
),
$conditions,
__METHOD__ );
$result = $dbw->affectedRows() != 0;
if ( $result ) {
$this->updateRedirectOn( $dbw, $rt, $lastRevIsRedirect );
}
wfProfileOut( __METHOD__ );
return $result;
}
/**
* Add row to the redirect table if this is a redirect, remove otherwise.
*
* @param $dbw Database
* @param $redirectTitle a title object pointing to the redirect target,
* or NULL if this is not a redirect
* @param $lastRevIsRedirect If given, will optimize adding and
* removing rows in redirect table.
* @return bool true on success, false on failure
* @private
*/
public function updateRedirectOn( &$dbw, $redirectTitle, $lastRevIsRedirect = null ) {
// Always update redirects (target link might have changed)
// Update/Insert if we don't know if the last revision was a redirect or not
// Delete if changing from redirect to non-redirect
$isRedirect = !is_null( $redirectTitle );
if ( $isRedirect || is_null( $lastRevIsRedirect ) || $lastRevIsRedirect !== $isRedirect ) {
wfProfileIn( __METHOD__ );
if ( $isRedirect ) {
// This title is a redirect, Add/Update row in the redirect table
$set = array( /* SET */
'rd_namespace' => $redirectTitle->getNamespace(),
'rd_title' => $redirectTitle->getDBkey(),
'rd_from' => $this->getId(),
);
$dbw->replace( 'redirect', array( 'rd_from' ), $set, __METHOD__ );
} else {
// This is not a redirect, remove row from redirect table
$where = array( 'rd_from' => $this->getId() );
$dbw->delete( 'redirect', $where, __METHOD__ );
}
if ( $this->getTitle()->getNamespace() == NS_FILE ) {
RepoGroup::singleton()->getLocalRepo()->invalidateImageRedirect( $this->getTitle() );
}
wfProfileOut( __METHOD__ );
return ( $dbw->affectedRows() != 0 );
}
return true;
}
/**
* If the given revision is newer than the currently set page_latest,
* update the page record. Otherwise, do nothing.
*
* @param $dbw Database object
* @param $revision Revision object
*/
public function updateIfNewerOn( &$dbw, $revision ) {
wfProfileIn( __METHOD__ );
$row = $dbw->selectRow(
array( 'revision', 'page' ),
array( 'rev_id', 'rev_timestamp', 'page_is_redirect' ),
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;
$lastRevIsRedirect = (bool)$row->page_is_redirect;
} else {
# No or missing previous revision; mark the page as new
$prev = 0;
$lastRevIsRedirect = null;
}
$ret = $this->updateRevisionOn( $dbw, $revision, $prev, $lastRevIsRedirect );
wfProfileOut( __METHOD__ );
return $ret;
}
/**
* @param $section empty/null/false or a section number (0, 1, 2, T1, T2...)
* @return string Complete article text, or null if error
*/
public function replaceSection( $section, $text, $summary = '', $edittime = null ) {
wfProfileIn( __METHOD__ );
if ( strval( $section ) == '' ) {
// Whole-page edit; let the whole text through
} else {
if ( is_null( $edittime ) ) {
$rev = Revision::newFromTitle( $this->mTitle );
} else {
$dbw = wfGetDB( DB_MASTER );
$rev = Revision::loadFromTimestamp( $dbw, $this->mTitle, $edittime );
}
if ( !$rev ) {
wfDebug( "Article::replaceSection asked for bogus section (page: " .
$this->getId() . "; section: $section; edittime: $edittime)\n" );
return null;
}
$oldtext = $rev->getText();
if ( $section == 'new' ) {
# Inserting a new section
$subject = $summary ? wfMsgForContent( 'newsectionheaderdefaultlevel', $summary ) . "\n\n" : '';
$text = strlen( trim( $oldtext ) ) > 0
? "{$oldtext}\n\n{$subject}{$text}"
: "{$subject}{$text}";
} else {
# Replacing an existing section; roll out the big guns
global $wgParser;
$text = $wgParser->replaceSection( $oldtext, $section, $text );
}
}
wfProfileOut( __METHOD__ );
return $text;
}
/**
* This function is not deprecated until somebody fixes the core not to use
* it. Nevertheless, use Article::doEdit() instead.
*/
function insertNewArticle( $text, $summary, $isminor, $watchthis, $suppressRC = false, $comment = false, $bot = false ) {
$flags = EDIT_NEW | EDIT_DEFER_UPDATES | EDIT_AUTOSUMMARY |
( $isminor ? EDIT_MINOR : 0 ) |
( $suppressRC ? EDIT_SUPPRESS_RC : 0 ) |
( $bot ? EDIT_FORCE_BOT : 0 );
# If this is a comment, add the summary as headline
if ( $comment && $summary != "" ) {
$text = wfMsgForContent( 'newsectionheaderdefaultlevel', $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 | EDIT_AUTOSUMMARY |
( $minor ? EDIT_MINOR : 0 ) |
( $forceBot ? EDIT_FORCE_BOT : 0 );
$status = $this->doEdit( $text, $summary, $flags );
if ( !$status->isOK() ) {
return false;
}
$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();
}
}
$extraQuery = ''; // Give extensions a chance to modify URL query on update
wfRunHooks( 'ArticleUpdateBeforeRedirect', array( $this, &$sectionanchor, &$extraQuery ) );
$this->doRedirect( $this->isRedirect( $text ), $sectionanchor, $extraQuery );
return true;
}
/**
* 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 $text String: new text
* @param $summary String: edit summary
* @param $flags Integer 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
* EDIT_AUTOSUMMARY
* Fill in blank summaries with generated text where possible
*
* 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 an
* edit-gone-missing error. If EDIT_NEW is specified and the article does exist, an
* edit-already-exists error will be returned. These two conditions are also possible with
* auto-detection due to MediaWiki's performance-optimised locking strategy.
*
* @param $baseRevId the revision ID this edit was based off, if any
* @param $user Optional user object, $wgUser will be used if not passed
*
* @return Status object. Possible errors:
* edit-hook-aborted: The ArticleSave hook aborted the edit but didn't set the fatal flag of $status
* edit-gone-missing: In update mode, but the article didn't exist
* edit-conflict: In update mode, the article changed unexpectedly
* edit-no-change: Warning that the text was the same as before
* edit-already-exists: In creation mode, but the article already exists
*
* Extensions may define additional errors.
*
* $return->value will contain an associative array with members as follows:
* new: Boolean indicating if the function attempted to create a new article
* revision: The revision object for the inserted revision, or null
*
* Compatibility note: this function previously returned a boolean value indicating success/failure
*/
public function doEdit( $text, $summary, $flags = 0, $baseRevId = false, $user = null ) {
global $wgUser, $wgDBtransactions, $wgUseAutomaticEditSummaries;
# Low-level sanity check
if ( $this->mTitle->getText() == '' ) {
throw new MWException( 'Something is trying to edit an article with an empty title' );
}
wfProfileIn( __METHOD__ );
$user = is_null( $user ) ? $wgUser : $user;
$status = Status::newGood( array() );
# Load $this->mTitle->getArticleID() and $this->mLatest if it's not already
$this->loadPageData();
if ( !( $flags & EDIT_NEW ) && !( $flags & EDIT_UPDATE ) ) {
$aid = $this->mTitle->getArticleID();
if ( $aid ) {
$flags |= EDIT_UPDATE;
} else {
$flags |= EDIT_NEW;
}
}
if ( !wfRunHooks( 'ArticleSave', array( &$this, &$user, &$text, &$summary,
$flags & EDIT_MINOR, null, null, &$flags, &$status ) ) )
{
wfDebug( __METHOD__ . ": ArticleSave hook aborted save!\n" );
wfProfileOut( __METHOD__ );
if ( $status->isOK() ) {
$status->fatal( 'edit-hook-aborted' );
}
return $status;
}
# Silently ignore EDIT_MINOR if not allowed
$isminor = ( $flags & EDIT_MINOR ) && $user->isAllowed( 'minoredit' );
$bot = $flags & EDIT_FORCE_BOT;
$oldtext = $this->getRawText(); // current revision
$oldsize = strlen( $oldtext );
# Provide autosummaries if one is not provided and autosummaries are enabled.
if ( $wgUseAutomaticEditSummaries && $flags & EDIT_AUTOSUMMARY && $summary == '' ) {
$summary = $this->getAutosummary( $oldtext, $text, $flags );
}
$editInfo = $this->prepareTextForEdit( $text );
$text = $editInfo->pst;
$newsize = strlen( $text );
$dbw = wfGetDB( DB_MASTER );
$now = wfTimestampNow();
$this->mTimestamp = $now;
if ( $flags & EDIT_UPDATE ) {
# Update article, but only if changed.
$status->value['new'] = false;
# Make sure the revision is either completely inserted or not inserted at all
if ( !$wgDBtransactions ) {
$userAbort = ignore_user_abort( true );
}
$revisionId = 0;
$changed = ( strcmp( $text, $oldtext ) != 0 );
if ( $changed ) {
$this->mGoodAdjustment = (int)$this->isCountable( $text )
- (int)$this->isCountable( $oldtext );
$this->mTotalAdjustment = 0;
if ( !$this->mLatest ) {
# Article gone missing
wfDebug( __METHOD__ . ": EDIT_UPDATE specified but article doesn't exist\n" );
$status->fatal( 'edit-gone-missing' );
wfProfileOut( __METHOD__ );
return $status;
}
$revision = new Revision( array(
'page' => $this->getId(),
'comment' => $summary,
'minor_edit' => $isminor,
'text' => $text,
'parent_id' => $this->mLatest,
'user' => $user->getId(),
'user_text' => $user->getName(),
) );
$dbw->begin();
$revisionId = $revision->insertOn( $dbw );
# Update page
#
# Note that we use $this->mLatest instead of fetching a value from the master DB
# during the course of this function. This makes sure that EditPage can detect
# edit conflicts reliably, either by $ok here, or by $article->getTimestamp()
# before this function is called. A previous function used a separate query, this
# creates a window where concurrent edits can cause an ignored edit conflict.
$ok = $this->updateRevisionOn( $dbw, $revision, $this->mLatest );
if ( !$ok ) {
/* Belated edit conflict! Run away!! */
$status->fatal( 'edit-conflict' );
# Delete the invalid revision if the DB is not transactional
if ( !$wgDBtransactions ) {
$dbw->delete( 'revision', array( 'rev_id' => $revisionId ), __METHOD__ );
}
$revisionId = 0;
$dbw->rollback();
} else {
global $wgUseRCPatrol;
wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $revision, $baseRevId, $user ) );
# Update recentchanges
if ( !( $flags & EDIT_SUPPRESS_RC ) ) {
# Mark as patrolled if the user can do so
$patrolled = $wgUseRCPatrol && $this->mTitle->userCan( 'autopatrol' );
# Add RC row to the DB
$rc = RecentChange::notifyEdit( $now, $this->mTitle, $isminor, $user, $summary,
$this->mLatest, $this->getTimestamp(), $bot, '', $oldsize, $newsize,
$revisionId, $patrolled
);
# Log auto-patrolled edits
if ( $patrolled ) {
PatrolLog::record( $rc, true );
}
}
$user->incEditCount();
$dbw->commit();
}
} else {
$status->warning( 'edit-no-change' );
$revision = null;
// 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( $userAbort );
}
// Now that ignore_user_abort is restored, we can respond to fatal errors
if ( !$status->isOK() ) {
wfProfileOut( __METHOD__ );
return $status;
}
# 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.
$this->editUpdates( $text, $summary, $isminor, $now, $revisionId, $changed );
} else {
# Create new article
$status->value['new'] = true;
# 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 return false if the article already exists
$newid = $this->insertOn( $dbw );
if ( $newid === false ) {
$dbw->rollback();
$status->fatal( 'edit-already-exists' );
wfProfileOut( __METHOD__ );
return $status;
}
# Save the revision text...
$revision = new Revision( array(
'page' => $newid,
'comment' => $summary,
'minor_edit' => $isminor,
'text' => $text,
'user' => $user->getId(),
'user_text' => $user->getName(),
) );
$revisionId = $revision->insertOn( $dbw );
$this->mTitle->resetArticleID( $newid );
# Update the page record with revision data
$this->updateRevisionOn( $dbw, $revision, 0 );
wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $revision, false, $user ) );
# Update recentchanges
if ( !( $flags & EDIT_SUPPRESS_RC ) ) {
global $wgUseRCPatrol, $wgUseNPPatrol;
# Mark as patrolled if the user can do so
$patrolled = ( $wgUseRCPatrol || $wgUseNPPatrol ) && $this->mTitle->userCan( 'autopatrol' );
# Add RC row to the DB
$rc = RecentChange::notifyNew( $now, $this->mTitle, $isminor, $user, $summary, $bot,
'', strlen( $text ), $revisionId, $patrolled );
# Log auto-patrolled edits
if ( $patrolled ) {
PatrolLog::record( $rc, true );
}
}
$user->incEditCount();
$dbw->commit();
# Update links, etc.
$this->editUpdates( $text, $summary, $isminor, $now, $revisionId, true );
# Clear caches
Article::onArticleCreate( $this->mTitle );
wfRunHooks( 'ArticleInsertComplete', array( &$this, &$user, $text, $summary,
$flags & EDIT_MINOR, null, null, &$flags, $revision ) );
}
# Do updates right now unless deferral was requested
if ( !( $flags & EDIT_DEFER_UPDATES ) ) {
wfDoUpdates();
}
// Return the new revision (or null) to the caller
$status->value['revision'] = $revision;
wfRunHooks( 'ArticleSaveComplete', array( &$this, &$user, $text, $summary,
$flags & EDIT_MINOR, null, null, &$flags, $revision, &$status, $baseRevId ) );
wfProfileOut( __METHOD__ );
return $status;
}
/**
* @deprecated wrapper for doRedirect
*/
public function showArticle( $text, $subtitle , $sectionanchor = '', $me2, $now, $summary, $oldid ) {
wfDeprecated( __METHOD__ );
$this->doRedirect( $this->isRedirect( $text ), $sectionanchor );
}
/**
* Output a redirect back to the article.
* This is typically used after an edit.
*
* @param $noRedir Boolean: add redirect=no
* @param $sectionAnchor String: section to redirect to, including "#"
* @param $extraQuery String: extra query params
*/
public function doRedirect( $noRedir = false, $sectionAnchor = '', $extraQuery = '' ) {
global $wgOut;
if ( $noRedir ) {
$query = 'redirect=no';
if ( $extraQuery )
$query .= "&$query";
} else {
$query = $extraQuery;
}
$wgOut->redirect( $this->mTitle->getFullURL( $query ) . $sectionAnchor );
}
/**
* Mark this particular edit/page as patrolled
*/
public function markpatrolled() {
global $wgOut, $wgRequest, $wgUseRCPatrol, $wgUseNPPatrol, $wgUser;
$wgOut->setRobotPolicy( 'noindex,nofollow' );
# If we haven't been given an rc_id value, we can't do anything
$rcid = (int) $wgRequest->getVal( 'rcid' );
$rc = RecentChange::newFromId( $rcid );
if ( is_null( $rc ) ) {
$wgOut->showErrorPage( 'markedaspatrollederror', 'markedaspatrollederrortext' );
return;
}
# It would be nice to see where the user had actually come from, but for now just guess
$returnto = $rc->getAttribute( 'rc_type' ) == RC_NEW ? 'Newpages' : 'Recentchanges';
$return = SpecialPage::getTitleFor( $returnto );
$dbw = wfGetDB( DB_MASTER );
$errors = $rc->doMarkPatrolled();
if ( in_array( array( 'rcpatroldisabled' ), $errors ) ) {
$wgOut->showErrorPage( 'rcpatroldisabled', 'rcpatroldisabledtext' );
return;
}
if ( in_array( array( 'hookaborted' ), $errors ) ) {
// The hook itself has handled any output
return;
}
if ( in_array( array( 'markedaspatrollederror-noautopatrol' ), $errors ) ) {
$wgOut->setPageTitle( wfMsg( 'markedaspatrollederror' ) );
$wgOut->addWikiMsg( 'markedaspatrollederror-noautopatrol' );
$wgOut->returnToMain( false, $return );
return;
}
if ( !empty( $errors ) ) {
$wgOut->showPermissionsErrorPage( $errors );
return;
}
# Inform the user
$wgOut->setPageTitle( wfMsg( 'markedaspatrolled' ) );
$wgOut->addWikiMsg( 'markedaspatrolledtext', $rc->getTitle()->getPrefixedText() );
$wgOut->returnToMain( false, $return );
}
/**
* User-interface handler for the "watch" action
*/
public 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' );
$wgOut->addWikiMsg( 'addedwatchtext', $this->mTitle->getPrefixedText() );
}
$wgOut->returnToMain( true, $this->mTitle->getPrefixedText() );
}
/**
* Add this page to $wgUser's watchlist
* @return bool true on successful watch operation
*/
public function doWatch() {
global $wgUser;
if ( $wgUser->isAnon() ) {
return false;
}
if ( wfRunHooks( 'WatchArticle', array( &$wgUser, &$this ) ) ) {
$wgUser->addWatch( $this->mTitle );
return wfRunHooks( 'WatchArticleComplete', array( &$wgUser, &$this ) );
}
return false;
}
/**
* User interface handler for the "unwatch" action.
*/
public 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' );
$wgOut->addWikiMsg( 'removedwatchtext', $this->mTitle->getPrefixedText() );
}
$wgOut->returnToMain( true, $this->mTitle->getPrefixedText() );
}
/**
* Stop watching a page
* @return bool true on successful unwatch
*/
public function doUnwatch() {
global $wgUser;
if ( $wgUser->isAnon() ) {
return false;
}
if ( wfRunHooks( 'UnwatchArticle', array( &$wgUser, &$this ) ) ) {
$wgUser->removeWatch( $this->mTitle );
return wfRunHooks( 'UnwatchArticleComplete', array( &$wgUser, &$this ) );
}
return false;
}
/**
* action=protect handler
*/
public function protect() {
$form = new ProtectionForm( $this );
$form->execute();
}
/**
* action=unprotect handler (alias)
*/
public function unprotect() {
$this->protect();
}
/**
* Update the article's restriction field, and leave a log entry.
*
* @param $limit Array: set of restriction keys
* @param $reason String
* @param &$cascade Integer. Set to false if cascading protection isn't allowed.
* @param $expiry Array: per restriction type expiration
* @return bool true on success
*/
public function updateRestrictions( $limit = array(), $reason = '', &$cascade = 0, $expiry = array() ) {
global $wgUser, $wgContLang;
$restrictionTypes = $this->mTitle->getRestrictionTypes();
$id = $this->mTitle->getArticleID();
if ( $id <= 0 ) {
wfDebug( "updateRestrictions failed: $id <= 0\n" );
return false;
}
if ( wfReadOnly() ) {
wfDebug( "updateRestrictions failed: read-only\n" );
return false;
}
if ( !$this->mTitle->userCan( 'protect' ) ) {
wfDebug( "updateRestrictions failed: insufficient permissions\n" );
return false;
}
if ( !$cascade ) {
$cascade = false;
}
// Take this opportunity to purge out expired restrictions
Title::purgeExpiredRestrictions();
# FIXME: Same limitations as described in ProtectionForm.php (line 37);
# we expect a single selection, but the schema allows otherwise.
$current = array();
$updated = Article::flattenRestrictions( $limit );
$changed = false;
foreach ( $restrictionTypes as $action ) {
if ( isset( $expiry[$action] ) ) {
# Get current restrictions on $action
$aLimits = $this->mTitle->getRestrictions( $action );
$current[$action] = implode( '', $aLimits );
# Are any actual restrictions being dealt with here?
$aRChanged = count( $aLimits ) || !empty( $limit[$action] );
# If something changed, we need to log it. Checking $aRChanged
# assures that "unprotecting" a page that is not protected does
# not log just because the expiry was "changed".
if ( $aRChanged && $this->mTitle->mRestrictionsExpiry[$action] != $expiry[$action] ) {
$changed = true;
}
}
}
$current = Article::flattenRestrictions( $current );
$changed = ( $changed || $current != $updated );
$changed = $changed || ( $updated && $this->mTitle->areRestrictionsCascading() != $cascade );
$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
$modified = $current != '' && $protect;
if ( $protect ) {
$comment_type = $modified ? 'modifiedarticleprotection' : 'protectedarticle';
} else {
$comment_type = 'unprotectedarticle';
}
$comment = $wgContLang->ucfirst( wfMsgForContent( $comment_type, $this->mTitle->getPrefixedText() ) );
# Only restrictions with the 'protect' right can cascade...
# Otherwise, people who cannot normally protect can "protect" pages via transclusion
$editrestriction = isset( $limit['edit'] ) ? array( $limit['edit'] ) : $this->mTitle->getRestrictions( 'edit' );
# The schema allows multiple restrictions
if ( !in_array( 'protect', $editrestriction ) && !in_array( 'sysop', $editrestriction ) )
$cascade = false;
$cascade_description = '';
if ( $cascade ) {
$cascade_description = ' [' . wfMsgForContent( 'protect-summary-cascade' ) . ']';
}
if ( $reason )
$comment .= ": $reason";
$editComment = $comment;
$encodedExpiry = array();
$protect_description = '';
foreach ( $limit as $action => $restrictions ) {
if ( !isset( $expiry[$action] ) )
$expiry[$action] = 'infinite';
$encodedExpiry[$action] = Block::encodeExpiry( $expiry[$action], $dbw );
if ( $restrictions != '' ) {
$protect_description .= "[$action=$restrictions] (";
if ( $encodedExpiry[$action] != 'infinity' ) {
$protect_description .= wfMsgForContent( 'protect-expiring',
$wgContLang->timeanddate( $expiry[$action], false, false ) ,
$wgContLang->date( $expiry[$action], false, false ) ,
$wgContLang->time( $expiry[$action], false, false ) );
} else {
$protect_description .= wfMsgForContent( 'protect-expiry-indefinite' );
}
$protect_description .= ') ';
}
}
$protect_description = trim( $protect_description );
if ( $protect_description && $protect )
$editComment .= " ($protect_description)";
if ( $cascade )
$editComment .= "$cascade_description";
# Update restrictions table
foreach ( $limit as $action => $restrictions ) {
if ( $restrictions != '' ) {
$dbw->replace( 'page_restrictions', array( array( 'pr_page', 'pr_type' ) ),
array( 'pr_page' => $id,
'pr_type' => $action,
'pr_level' => $restrictions,
'pr_cascade' => ( $cascade && $action == 'edit' ) ? 1 : 0,
'pr_expiry' => $encodedExpiry[$action] ), __METHOD__ );
} else {
$dbw->delete( 'page_restrictions', array( 'pr_page' => $id,
'pr_type' => $action ), __METHOD__ );
}
}
# Insert a null revision
$nullRevision = Revision::newNullRevision( $dbw, $id, $editComment, true );
$nullRevId = $nullRevision->insertOn( $dbw );
$latest = $this->getLatest();
# Update page record
$dbw->update( 'page',
array( /* SET */
'page_touched' => $dbw->timestamp(),
'page_restrictions' => '',
'page_latest' => $nullRevId
), array( /* WHERE */
'page_id' => $id
), 'Article::protect'
);
wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $nullRevision, $latest, $wgUser ) );
wfRunHooks( 'ArticleProtectComplete', array( &$this, &$wgUser, $limit, $reason ) );
# Update the protection log
$log = new LogPage( 'protect' );
if ( $protect ) {
$params = array( $protect_description, $cascade ? 'cascade' : '' );
$log->addEntry( $modified ? 'modify' : 'protect', $this->mTitle, trim( $reason ), $params );
} 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 $limit Array
* @return String
*/
protected static 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( ':', $bits );
}
/**
* Auto-generates a deletion reason
* @param &$hasHistory Boolean: whether the page has a history
*/
public function generateReason( &$hasHistory ) {
global $wgContLang;
$dbw = wfGetDB( DB_MASTER );
// Get the last revision
$rev = Revision::newFromTitle( $this->mTitle );
if ( is_null( $rev ) )
return false;
// Get the article's contents
$contents = $rev->getText();
$blank = false;
// If the page is blank, use the text from the previous revision,
// which can only be blank if there's a move/import/protect dummy revision involved
if ( $contents == '' ) {
$prev = $rev->getPrevious();
if ( $prev ) {
$contents = $prev->getText();
$blank = true;
}
}
// Find out if there was only one contributor
// Only scan the last 20 revisions
$res = $dbw->select( 'revision', 'rev_user_text',
array( 'rev_page' => $this->getID(), $dbw->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0' ),
__METHOD__,
array( 'LIMIT' => 20 )
);
if ( $res === false )
// This page has no revisions, which is very weird
return false;
$hasHistory = ( $res->numRows() > 1 );
$row = $dbw->fetchObject( $res );
$onlyAuthor = $row->rev_user_text;
// Try to find a second contributor
foreach ( $res as $row ) {
if ( $row->rev_user_text != $onlyAuthor ) {
$onlyAuthor = false;
break;
}
}
$dbw->freeResult( $res );
// Generate the summary with a '$1' placeholder
if ( $blank ) {
// The current revision is blank and the one before is also
// blank. It's just not our lucky day
$reason = wfMsgForContent( 'exbeforeblank', '$1' );
} else {
if ( $onlyAuthor )
$reason = wfMsgForContent( 'excontentauthor', '$1', $onlyAuthor );
else
$reason = wfMsgForContent( 'excontent', '$1' );
}
if ( $reason == '-' ) {
// Allow these UI messages to be blanked out cleanly
return '';
}
// Replace newlines with spaces to prevent uglyness
$contents = preg_replace( "/[\n\r]/", ' ', $contents );
// Calculate the maximum amount of chars to get
// Max content length = max comment length - length of the comment (excl. $1) - '...'
$maxLength = 255 - ( strlen( $reason ) - 2 ) - 3;
$contents = $wgContLang->truncate( $contents, $maxLength );
// Remove possible unfinished links
$contents = preg_replace( '/\[\[([^\]]*)\]?$/', '$1', $contents );
// Now replace the '$1' placeholder
$reason = str_replace( '$1', $contents, $reason );
return $reason;
}
/*
* UI entry point for page deletion
*/
public function delete() {
global $wgUser, $wgOut, $wgRequest;
$confirm = $wgRequest->wasPosted() &&
$wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ) );
$this->DeleteReasonList = $wgRequest->getText( 'wpDeleteReasonList', 'other' );
$this->DeleteReason = $wgRequest->getText( 'wpReason' );
$reason = $this->DeleteReasonList;
if ( $reason != 'other' && $this->DeleteReason != '' ) {
// Entry from drop down menu + additional comment
$reason .= wfMsgForContent( 'colon-separator' ) . $this->DeleteReason;
} elseif ( $reason == 'other' ) {
$reason = $this->DeleteReason;
}
# Flag to hide all contents of the archived revisions
$suppress = $wgRequest->getVal( 'wpSuppress' ) && $wgUser->isAllowed( 'suppressrevision' );
# This code desperately needs to be totally rewritten
# Read-only check...
if ( wfReadOnly() ) {
$wgOut->readOnlyPage();
return;
}
# Check permissions
$permission_errors = $this->mTitle->getUserPermissionsErrors( 'delete', $wgUser );
if ( count( $permission_errors ) > 0 ) {
$wgOut->showPermissionsErrorPage( $permission_errors );
return;
}
$wgOut->setPagetitle( wfMsg( 'delete-confirm', $this->mTitle->getPrefixedText() ) );
# 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(
Html::rawElement(
'div',
array( 'class' => 'error mw-error-cannotdelete' ),
wfMsgExt( 'cannotdelete', array( 'parse' ), $this->mTitle->getPrefixedText() )
)
);
$wgOut->addHTML( Xml::element( 'h2', null, LogPage::logName( 'delete' ) ) );
LogEventsList::showLogExtract(
$wgOut,
'delete',
$this->mTitle->getPrefixedText()
);
return;
}
# Hack for big sites
$bigHistory = $this->isBigDeletion();
if ( $bigHistory && !$this->mTitle->userCan( 'bigdelete' ) ) {
global $wgLang, $wgDeleteRevisionsLimit;
$wgOut->wrapWikiMsg( "<div class='error'>\n$1</div>\n",
array( 'delete-toobig', $wgLang->formatNum( $wgDeleteRevisionsLimit ) ) );
return;
}
if ( $confirm ) {
$this->doDelete( $reason, $suppress );
if ( $wgRequest->getCheck( 'wpWatch' ) && $wgUser->isLoggedIn() ) {
$this->doWatch();
} elseif ( $this->mTitle->userIsWatching() ) {
$this->doUnwatch();
}
return;
}
// Generate deletion reason
$hasHistory = false;
if ( !$reason ) $reason = $this->generateReason( $hasHistory );
// If the page has a history, insert a warning
if ( $hasHistory && !$confirm ) {
global $wgLang;
$skin = $wgUser->getSkin();
$revisions = $this->estimateRevisionCount();
$wgOut->addHTML( '<strong class="mw-delete-warning-revisions">' .
wfMsgExt( 'historywarning', array( 'parseinline' ), $wgLang->formatNum( $revisions ) ) .
wfMsgHtml( 'word-separator' ) . $skin->historyLink() .
'</strong>'
);
if ( $bigHistory ) {
global $wgDeleteRevisionsLimit;
$wgOut->wrapWikiMsg( "<div class='error'>\n$1</div>\n",
array( 'delete-warning-toobig', $wgLang->formatNum( $wgDeleteRevisionsLimit ) ) );
}
}
return $this->confirmDelete( $reason );
}
/**
* @return bool whether or not the page surpasses $wgDeleteRevisionsLimit revisions
*/
public function isBigDeletion() {
global $wgDeleteRevisionsLimit;
if ( $wgDeleteRevisionsLimit ) {
$revCount = $this->estimateRevisionCount();
return $revCount > $wgDeleteRevisionsLimit;
}
return false;
}
/**
* @return int approximate revision count
*/
public function estimateRevisionCount() {
$dbr = wfGetDB( DB_SLAVE );
// For an exact count...
// return $dbr->selectField( 'revision', 'COUNT(*)',
// array( 'rev_page' => $this->getId() ), __METHOD__ );
return $dbr->estimateRowCount( 'revision', '*',
array( 'rev_page' => $this->getId() ), __METHOD__ );
}
/**
* Get the last N authors
* @param $num Integer: number of revisions to get
* @param $revLatest String: the latest rev_id, selected from the master (optional)
* @return array Array of authors, duplicates not removed
*/
public 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
* @param $reason String: prefilled reason
*/
public function confirmDelete( $reason ) {
global $wgOut, $wgUser;
wfDebug( "Article::confirmDelete\n" );
$deleteBackLink = $wgUser->getSkin()->link(
$this->mTitle,
null,
array(),
array(),
array( 'known', 'noclasses' )
);
$wgOut->setSubtitle( wfMsgHtml( 'delete-backlink', $deleteBackLink ) );
$wgOut->setRobotPolicy( 'noindex,nofollow' );
$wgOut->addWikiMsg( 'confirmdeletetext' );
wfRunHooks( 'ArticleConfirmDelete', array( $this, $wgOut, &$reason ) );
if ( $wgUser->isAllowed( 'suppressrevision' ) ) {
$suppress = "<tr id=\"wpDeleteSuppressRow\" name=\"wpDeleteSuppressRow\">
<td></td>
<td class='mw-input'><strong>" .
Xml::checkLabel( wfMsg( 'revdelete-suppress' ),
'wpSuppress', 'wpSuppress', false, array( 'tabindex' => '4' ) ) .
"</strong></td>
</tr>";
} else {
$suppress = '';
}
$checkWatch = $wgUser->getBoolOption( 'watchdeletion' ) || $this->mTitle->userIsWatching();
$form = Xml::openElement( 'form', array( 'method' => 'post',
'action' => $this->mTitle->getLocalURL( 'action=delete' ), 'id' => 'deleteconfirm' ) ) .
Xml::openElement( 'fieldset', array( 'id' => 'mw-delete-table' ) ) .
Xml::tags( 'legend', null, wfMsgExt( 'delete-legend', array( 'parsemag', 'escapenoentities' ) ) ) .
Xml::openElement( 'table', array( 'id' => 'mw-deleteconfirm-table' ) ) .
"<tr id=\"wpDeleteReasonListRow\">
<td class='mw-label'>" .
Xml::label( wfMsg( 'deletecomment' ), 'wpDeleteReasonList' ) .
"</td>
<td class='mw-input'>" .
Xml::listDropDown( 'wpDeleteReasonList',
wfMsgForContent( 'deletereason-dropdown' ),
wfMsgForContent( 'deletereasonotherlist' ), '', 'wpReasonDropDown', 1 ) .
"</td>
</tr>
<tr id=\"wpDeleteReasonRow\">
<td class='mw-label'>" .
Xml::label( wfMsg( 'deleteotherreason' ), 'wpReason' ) .
"</td>
<td class='mw-input'>" .
Html::input( 'wpReason', $reason, 'text', array(
'size' => '60',
'maxlength' => '255',
'tabindex' => '2',
'id' => 'wpReason',
'autofocus'
) ) .
"</td>
</tr>";
# Dissalow watching is user is not logged in
if ( $wgUser->isLoggedIn() ) {
$form .= "
<tr>
<td></td>
<td class='mw-input'>" .
Xml::checkLabel( wfMsg( 'watchthis' ),
'wpWatch', 'wpWatch', $checkWatch, array( 'tabindex' => '3' ) ) .
"</td>
</tr>";
}
$form .= "
$suppress
<tr>
<td></td>
<td class='mw-submit'>" .
Xml::submitButton( wfMsg( 'deletepage' ),
array( 'name' => 'wpConfirmB', 'id' => 'wpConfirmB', 'tabindex' => '5' ) ) .
"</td>
</tr>" .
Xml::closeElement( 'table' ) .
Xml::closeElement( 'fieldset' ) .
Xml::hidden( 'wpEditToken', $wgUser->editToken() ) .
Xml::closeElement( 'form' );
if ( $wgUser->isAllowed( 'editinterface' ) ) {
$skin = $wgUser->getSkin();
$title = Title::makeTitle( NS_MEDIAWIKI, 'Deletereason-dropdown' );
$link = $skin->link(
$title,
wfMsgHtml( 'delete-edit-reasonlist' ),
array(),
array( 'action' => 'edit' )
);
$form .= '<p class="mw-delete-editreasons">' . $link . '</p>';
}
$wgOut->addHTML( $form );
$wgOut->addHTML( Xml::element( 'h2', null, LogPage::logName( 'delete' ) ) );
LogEventsList::showLogExtract(
$wgOut,
'delete',
$this->mTitle->getPrefixedText()
);
}
/**
* Perform a deletion and output success or failure messages
*/
public function doDelete( $reason, $suppress = false ) {
global $wgOut, $wgUser;
$id = $this->mTitle->getArticleID( GAID_FOR_UPDATE );
$error = '';
if ( wfRunHooks( 'ArticleDelete', array( &$this, &$wgUser, &$reason, &$error ) ) ) {
if ( $this->doDeleteArticle( $reason, $suppress, $id ) ) {
$deleted = $this->mTitle->getPrefixedText();
$wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
$wgOut->setRobotPolicy( 'noindex,nofollow' );
$loglink = '[[Special:Log/delete|' . wfMsgNoTrans( 'deletionlog' ) . ']]';
$wgOut->addWikiMsg( 'deletedtext', $deleted, $loglink );
$wgOut->returnToMain( false );
wfRunHooks( 'ArticleDeleteComplete', array( &$this, &$wgUser, $reason, $id ) );
}
} else {
if ( $error == '' ) {
$wgOut->showFatalError(
Html::rawElement(
'div',
array( 'class' => 'error mw-error-cannotdelete' ),
wfMsgExt( 'cannotdelete', array( 'parse' ), $this->mTitle->getPrefixedText() )
)
);
$wgOut->addHTML( Xml::element( 'h2', null, LogPage::logName( 'delete' ) ) );
LogEventsList::showLogExtract(
$wgOut,
'delete',
$this->mTitle->getPrefixedText()
);
} else {
$wgOut->showFatalError( $error );
}
}
}
/**
* Back-end article deletion
* Deletes the article with database consistency, writes logs, purges caches
* Returns success
*/
public function doDeleteArticle( $reason, $suppress = false, $id = 0 ) {
global $wgUseSquid, $wgDeferredUpdateList;
global $wgUseTrackbacks;
wfDebug( __METHOD__ . "\n" );
$dbw = wfGetDB( DB_MASTER );
$ns = $this->mTitle->getNamespace();
$t = $this->mTitle->getDBkey();
$id = $id ? $id : $this->mTitle->getArticleID( GAID_FOR_UPDATE );
if ( $t == '' || $id == 0 ) {
return false;
}
$u = new SiteStatsUpdate( 0, 1, - (int)$this->isCountable( $this->getRawText() ), -1 );
array_push( $wgDeferredUpdateList, $u );
// Bitfields to further suppress the content
if ( $suppress ) {
$bitfield = 0;
// This should be 15...
$bitfield |= Revision::DELETED_TEXT;
$bitfield |= Revision::DELETED_COMMENT;
$bitfield |= Revision::DELETED_USER;
$bitfield |= Revision::DELETED_RESTRICTED;
} else {
$bitfield = 'rev_deleted';
}
$dbw->begin();
// 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',
'ar_text' => '\'\'', // Be explicit to appease
'ar_flags' => '\'\'', // MySQL's "strict mode"...
'ar_len' => 'rev_len',
'ar_page_id' => 'page_id',
'ar_deleted' => $bitfield
), array(
'page_id' => $id,
'page_id = rev_page'
), __METHOD__
);
# Delete restrictions for it
$dbw->delete( 'page_restrictions', array ( 'pr_page' => $id ), __METHOD__ );
# Now that it's safely backed up, delete it
$dbw->delete( 'page', array( 'page_id' => $id ), __METHOD__ );
$ok = ( $dbw->affectedRows() > 0 ); // getArticleId() uses slave, could be laggy
if ( !$ok ) {
$dbw->rollback();
return false;
}
# Fix category table counts
$cats = array();
$res = $dbw->select( 'categorylinks', 'cl_to', array( 'cl_from' => $id ), __METHOD__ );
foreach ( $res as $row ) {
$cats [] = $row->cl_to;
}
$this->updateCategoryCounts( array(), $cats );
# If using cascading deletes, we can skip some explicit deletes
if ( !$dbw->cascadingDeletes() ) {
$dbw->delete( 'revision', array( 'rev_page' => $id ), __METHOD__ );
if ( $wgUseTrackbacks )
$dbw->delete( 'trackbacks', array( 'tb_page' => $id ), __METHOD__ );
# 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 ) );
$dbw->delete( 'redirect', array( 'rd_from' => $id ) );
}
# If using cleanup triggers, we can skip some manual deletes
if ( !$dbw->cleanupTriggers() ) {
# Clean up recentchanges entries...
$dbw->delete( 'recentchanges',
array( 'rc_type != ' . RC_LOG,
'rc_namespace' => $this->mTitle->getNamespace(),
'rc_title' => $this->mTitle->getDBkey() ),
__METHOD__ );
$dbw->delete( 'recentchanges',
array( 'rc_type != ' . RC_LOG, 'rc_cur_id' => $id ),
__METHOD__ );
}
# Clear caches
Article::onArticleDelete( $this->mTitle );
# Clear the cached article id so the interface doesn't act like we exist
$this->mTitle->resetArticleID( 0 );
# Log the deletion, if the page was suppressed, log it at Oversight instead
$logtype = $suppress ? 'suppress' : 'delete';
$log = new LogPage( $logtype );
# Make sure logging got through
$log->addEntry( 'delete', $this->mTitle, $reason, array() );
$dbw->commit();
return true;
}
/**
* Roll back the most recent consecutive set of edits to a page
* from the same user; fails if there are no eligible edits to
* roll back to, e.g. user is the sole contributor. This function
* performs permissions checks on $wgUser, then calls commitRollback()
* to do the dirty work
*
* @param $fromP String: Name of the user whose edits to rollback.
* @param $summary String: Custom summary. Set to default summary if empty.
* @param $token String: Rollback token.
* @param $bot Boolean: If true, mark all reverted edits as bot.
*
* @param $resultDetails Array: contains result-specific array of additional values
* 'alreadyrolled' : 'current' (rev)
* success : 'summary' (str), 'current' (rev), 'target' (rev)
*
* @return array of errors, each error formatted as
* array(messagekey, param1, param2, ...).
* On success, the array is empty. This array can also be passed to
* OutputPage::showPermissionsErrorPage().
*/
public function doRollback( $fromP, $summary, $token, $bot, &$resultDetails ) {
global $wgUser;
$resultDetails = null;
# Check permissions
$editErrors = $this->mTitle->getUserPermissionsErrors( 'edit', $wgUser );
$rollbackErrors = $this->mTitle->getUserPermissionsErrors( 'rollback', $wgUser );
$errors = array_merge( $editErrors, wfArrayDiff2( $rollbackErrors, $editErrors ) );
if ( !$wgUser->matchEditToken( $token, array( $this->mTitle->getPrefixedText(), $fromP ) ) )
$errors[] = array( 'sessionfailure' );
if ( $wgUser->pingLimiter( 'rollback' ) || $wgUser->pingLimiter() ) {
$errors[] = array( 'actionthrottledtext' );
}
# If there were errors, bail out now
if ( !empty( $errors ) )
return $errors;
return $this->commitRollback( $fromP, $summary, $bot, $resultDetails );
}
/**
* Backend implementation of doRollback(), please refer there for parameter
* and return value documentation
*
* NOTE: This function does NOT check ANY permissions, it just commits the
* rollback to the DB Therefore, you should only call this function direct-
* ly if you want to use custom permissions checks. If you don't, use
* doRollback() instead.
*/
public function commitRollback( $fromP, $summary, $bot, &$resultDetails ) {
global $wgUseRCPatrol, $wgUser, $wgLang;
$dbw = wfGetDB( DB_MASTER );
if ( wfReadOnly() ) {
return array( array( 'readonlytext' ) );
}
# Get the last editor
$current = Revision::newFromTitle( $this->mTitle );
if ( is_null( $current ) ) {
# Something wrong... no page?
return array( array( 'notanarticle' ) );
}
$from = str_replace( '_', ' ', $fromP );
# User name given should match up with the top revision.
# If the user was deleted then $from should be empty.
if ( $from != $current->getUserText() ) {
$resultDetails = array( 'current' => $current );
return array( array( 'alreadyrolled',
htmlspecialchars( $this->mTitle->getPrefixedText() ),
htmlspecialchars( $fromP ),
htmlspecialchars( $current->getUserText() )
) );
}
# Get the last edit not by this guy...
# Note: these may not be public values
$user = intval( $current->getRawUser() );
$user_text = $dbw->addQuotes( $current->getRawUserText() );
$s = $dbw->selectRow( 'revision',
array( 'rev_id', 'rev_timestamp', 'rev_deleted' ),
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 ) {
# No one else ever edited this page
return array( array( 'cantrollback' ) );
} else if ( $s->rev_deleted & REVISION::DELETED_TEXT || $s->rev_deleted & REVISION::DELETED_USER ) {
# Only admins can see this text
return array( array( 'notvisiblerev' ) );
}
$set = array();
if ( $bot && $wgUser->isAllowed( 'markbotedits' ) ) {
# Mark all reverted edits as bot
$set['rc_bot'] = 1;
}
if ( $wgUseRCPatrol ) {
# Mark all reverted edits as patrolled
$set['rc_patrolled'] = 1;
}
if ( count( $set ) ) {
$dbw->update( 'recentchanges', $set,
array( /* WHERE */
'rc_cur_id' => $current->getPage(),
'rc_user_text' => $current->getUserText(),
"rc_timestamp > '{$s->rev_timestamp}'",
), __METHOD__
);
}
# Generate the edit summary if necessary
$target = Revision::newFromId( $s->rev_id );
if ( empty( $summary ) ) {
if ( $from == '' ) { // no public user name
$summary = wfMsgForContent( 'revertpage-nouser' );
} else {
$summary = wfMsgForContent( 'revertpage' );
}
}
# Allow the custom summary to use the same args as the default message
$args = array(
$target->getUserText(), $from, $s->rev_id,
$wgLang->timeanddate( wfTimestamp( TS_MW, $s->rev_timestamp ), true ),
$current->getId(), $wgLang->timeanddate( $current->getTimestamp() )
);
$summary = wfMsgReplaceArgs( $summary, $args );
# Save
$flags = EDIT_UPDATE;
if ( $wgUser->isAllowed( 'minoredit' ) )
$flags |= EDIT_MINOR;
if ( $bot && ( $wgUser->isAllowed( 'markbotedits' ) || $wgUser->isAllowed( 'bot' ) ) )
$flags |= EDIT_FORCE_BOT;
# Actually store the edit
$status = $this->doEdit( $target->getText(), $summary, $flags, $target->getId() );
if ( !empty( $status->value['revision'] ) ) {
$revId = $status->value['revision']->getId();
} else {
$revId = false;
}
wfRunHooks( 'ArticleRollbackComplete', array( $this, $wgUser, $target, $current ) );
$resultDetails = array(
'summary' => $summary,
'current' => $current,
'target' => $target,
'newid' => $revId
);
return array();
}
/**
* User interface for rollback operations
*/
public function rollback() {
global $wgUser, $wgOut, $wgRequest, $wgUseRCPatrol;
$details = null;
$result = $this->doRollback(
$wgRequest->getVal( 'from' ),
$wgRequest->getText( 'summary' ),
$wgRequest->getVal( 'token' ),
$wgRequest->getBool( 'bot' ),
$details
);
if ( in_array( array( 'actionthrottledtext' ), $result ) ) {
$wgOut->rateLimited();
return;
}
if ( isset( $result[0][0] ) && ( $result[0][0] == 'alreadyrolled' || $result[0][0] == 'cantrollback' ) ) {
$wgOut->setPageTitle( wfMsg( 'rollbackfailed' ) );
$errArray = $result[0];
$errMsg = array_shift( $errArray );
$wgOut->addWikiMsgArray( $errMsg, $errArray );
if ( isset( $details['current'] ) ) {
$current = $details['current'];
if ( $current->getComment() != '' ) {
$wgOut->addWikiMsgArray( 'editcomment', array(
$wgUser->getSkin()->formatComment( $current->getComment() ) ), array( 'replaceafter' ) );
}
}
return;
}
# Display permissions errors before read-only message -- there's no
# point in misleading the user into thinking the inability to rollback
# is only temporary.
if ( !empty( $result ) && $result !== array( array( 'readonlytext' ) ) ) {
# array_diff is completely broken for arrays of arrays, sigh. Re-
# move any 'readonlytext' error manually.
$out = array();
foreach ( $result as $error ) {
if ( $error != array( 'readonlytext' ) ) {
$out [] = $error;
}
}
$wgOut->showPermissionsErrorPage( $out );
return;
}
if ( $result == array( array( 'readonlytext' ) ) ) {
$wgOut->readOnlyPage();
return;
}
$current = $details['current'];
$target = $details['target'];
$newId = $details['newid'];
$wgOut->setPageTitle( wfMsg( 'actioncomplete' ) );
$wgOut->setRobotPolicy( 'noindex,nofollow' );
if ( $current->getUserText() === '' ) {
$old = wfMsg( 'rev-deleted-user' );
} else {
$old = $wgUser->getSkin()->userLink( $current->getUser(), $current->getUserText() )
. $wgUser->getSkin()->userToolLinks( $current->getUser(), $current->getUserText() );
}
$new = $wgUser->getSkin()->userLink( $target->getUser(), $target->getUserText() )
. $wgUser->getSkin()->userToolLinks( $target->getUser(), $target->getUserText() );
$wgOut->addHTML( wfMsgExt( 'rollback-success', array( 'parse', 'replaceafter' ), $old, $new ) );
$wgOut->returnToMain( false, $this->mTitle );
if ( !$wgRequest->getBool( 'hidediff', false ) && !$wgUser->getBoolOption( 'norollbackdiff', false ) ) {
$de = new DifferenceEngine( $this->mTitle, $current->getId(), $newId, false, true );
$de->showDiff( '', '' );
}
}
/**
* Do standard deferred updates after page view
*/
public function viewUpdates() {
global $wgDeferredUpdateList, $wgDisableCounters, $wgUser;
if ( wfReadOnly() ) {
return;
}
# Don't update page view counters on views from bot users (bug 14044)
if ( !$wgDisableCounters && !$wgUser->isAllowed( 'bot' ) && $this->getID() ) {
Article::incViewCount( $this->getID() );
$u = new SiteStatsUpdate( 1, 0, 0 );
array_push( $wgDeferredUpdateList, $u );
}
# Update newtalk / watchlist notification status
$wgUser->clearNotification( $this->mTitle );
}
/**
* Prepare text which is about to be saved.
* Returns a stdclass with source, pst and output members
*/
public function prepareTextForEdit( $text, $revid = null ) {
if ( $this->mPreparedEdit && $this->mPreparedEdit->newText == $text && $this->mPreparedEdit->revid == $revid ) {
// Already prepared
return $this->mPreparedEdit;
}
global $wgParser;
$edit = (object)array();
$edit->revid = $revid;
$edit->newText = $text;
$edit->pst = $this->preSaveTransform( $text );
$options = $this->getParserOptions();
$edit->output = $wgParser->parse( $edit->pst, $this->mTitle, $options, true, true, $revid );
$edit->oldText = $this->getContent();
$this->mPreparedEdit = $edit;
return $edit;
}
/**
* Do standard deferred updates after page edit.
* Update links tables, site stats, search index and message cache.
* Purges pages that include this page if the text was changed here.
* Every 100th 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
*/
public function editUpdates( $text, $summary, $minoredit, $timestamp_of_pagechange, $newid, $changed = true ) {
global $wgDeferredUpdateList, $wgMessageCache, $wgUser, $wgEnableParserCache;
wfProfileIn( __METHOD__ );
# Parse the text
# Be careful not to double-PST: $text is usually already PST-ed once
if ( !$this->mPreparedEdit || $this->mPreparedEdit->output->getFlag( 'vary-revision' ) ) {
wfDebug( __METHOD__ . ": No prepared edit or vary-revision is set...\n" );
$editInfo = $this->prepareTextForEdit( $text, $newid );
} else {
wfDebug( __METHOD__ . ": No vary-revision, using prepared edit...\n" );
$editInfo = $this->mPreparedEdit;
}
# Save it to the parser cache
if ( $wgEnableParserCache ) {
$popts = $this->getParserOptions();
$parserCache = ParserCache::singleton();
$parserCache->save( $editInfo->output, $this, $popts );
}
# Update the links tables
$u = new LinksUpdate( $this->mTitle, $editInfo->output );
$u->doUpdate();
wfRunHooks( 'ArticleEditUpdates', array( &$this, &$editInfo, $changed ) );
if ( wfRunHooks( 'ArticleEditUpdatesDeleteFromRecentchanges', array( &$this ) ) ) {
if ( 0 == mt_rand( 0, 99 ) ) {
// Flush old entries from the `recentchanges` table; we do this on
// random requests so as to avoid an increase in writes for no good reason
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, nor if it's a minor edit
# by a properly-flagged bot.
if ( $this->mTitle->getNamespace() == NS_USER_TALK && $shortTitle != $wgUser->getTitleKey() && $changed
&& !( $minoredit && $wgUser->isAllowed( 'nominornewtalk' ) ) ) {
if ( wfRunHooks( 'ArticleEditUpdateNewTalk', array( &$this ) ) ) {
$other = User::newFromName( $shortTitle, false );
if ( !$other ) {
wfDebug( __METHOD__ . ": invalid username\n" );
} elseif ( User::isIP( $shortTitle ) ) {
// An anonymous user
$other->setNewtalk( true );
} elseif ( $other->isLoggedIn() ) {
$other->setNewtalk( true );
} else {
wfDebug( __METHOD__ . ": don't need to notify a nonexistent user\n" );
}
}
}
if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
$wgMessageCache->replace( $shortTitle, $text );
}
wfProfileOut( __METHOD__ );
}
/**
* Perform article updates on a special page creation.
*
* @param $rev Revision object
*
* @todo This is a shitty interface function. Kill it and replace the
* other shitty functions like editUpdates and such so it's not needed
* anymore.
*/
public function createUpdates( $rev ) {
$this->mGoodAdjustment = $this->isCountable( $rev->getText() );
$this->mTotalAdjustment = 1;
$this->editUpdates( $rev->getText(), $rev->getComment(),
$rev->isMinor(), wfTimestamp(), $rev->getId(), true );
}
/**
* 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 -\>
*
* @param $oldid String: revision ID of this article revision
*/
public function setOldSubtitle( $oldid = 0 ) {
global $wgLang, $wgOut, $wgUser, $wgRequest;
if ( !wfRunHooks( 'DisplayOldSubtitle', array( &$this, &$oldid ) ) ) {
return;
}
$unhide = $wgRequest->getInt( 'unhide' ) == 1 &&
$wgUser->matchEditToken( $wgRequest->getVal( 'token' ), $oldid );
# Cascade unhide param in links for easy deletion browsing
$extraParams = array();
if ( $wgRequest->getVal( 'unhide' ) ) {
$extraParams['unhide'] = 1;
}
$revision = Revision::newFromId( $oldid );
$current = ( $oldid == $this->mLatest );
$td = $wgLang->timeanddate( $this->mTimestamp, true );
$tddate = $wgLang->date( $this->mTimestamp, true );
$tdtime = $wgLang->time( $this->mTimestamp, true );
$sk = $wgUser->getSkin();
$lnk = $current
? wfMsgHtml( 'currentrevisionlink' )
: $sk->link(
$this->mTitle,
wfMsgHtml( 'currentrevisionlink' ),
array(),
$extraParams,
array( 'known', 'noclasses' )
);
$curdiff = $current
? wfMsgHtml( 'diff' )
: $sk->link(
$this->mTitle,
wfMsgHtml( 'diff' ),
array(),
array(
'diff' => 'cur',
'oldid' => $oldid
) + $extraParams,
array( 'known', 'noclasses' )
);
$prev = $this->mTitle->getPreviousRevisionID( $oldid ) ;
$prevlink = $prev
? $sk->link(
$this->mTitle,
wfMsgHtml( 'previousrevision' ),
array(),
array(
'direction' => 'prev',
'oldid' => $oldid
) + $extraParams,
array( 'known', 'noclasses' )
)
: wfMsgHtml( 'previousrevision' );
$prevdiff = $prev
? $sk->link(
$this->mTitle,
wfMsgHtml( 'diff' ),
array(),
array(
'diff' => 'prev',
'oldid' => $oldid
) + $extraParams,
array( 'known', 'noclasses' )
)
: wfMsgHtml( 'diff' );
$nextlink = $current
? wfMsgHtml( 'nextrevision' )
: $sk->link(
$this->mTitle,
wfMsgHtml( 'nextrevision' ),
array(),
array(
'direction' => 'next',
'oldid' => $oldid
) + $extraParams,
array( 'known', 'noclasses' )
);
$nextdiff = $current
? wfMsgHtml( 'diff' )
: $sk->link(
$this->mTitle,
wfMsgHtml( 'diff' ),
array(),
array(
'diff' => 'next',
'oldid' => $oldid
) + $extraParams,
array( 'known', 'noclasses' )
);
$cdel = '';
// User can delete revisions or view deleted revisions...
$canHide = $wgUser->isAllowed( 'deleterevision' );
if ( $canHide || ( $revision->getVisibility() && $wgUser->isAllowed( 'deletedhistory' ) ) ) {
if ( !$revision->userCan( Revision::DELETED_RESTRICTED ) ) {
$cdel = $sk->revDeleteLinkDisabled( $canHide ); // rev was hidden from Sysops
} else {
$query = array(
'type' => 'revision',
'target' => $this->mTitle->getPrefixedDbkey(),
'ids' => $oldid
);
$cdel = $sk->revDeleteLink( $query, $revision->isDeleted( File::DELETED_RESTRICTED ), $canHide );
}
$cdel .= ' ';
}
# Show user links if allowed to see them. If hidden, then show them only if requested...
$userlinks = $sk->revUserTools( $revision, !$unhide );
$m = wfMsg( 'revision-info-current' );
$infomsg = $current && !wfEmptyMsg( 'revision-info-current', $m ) && $m != '-'
? 'revision-info-current'
: 'revision-info';
$r = "\n\t\t\t\t<div id=\"mw-{$infomsg}\">" .
wfMsgExt(
$infomsg,
array( 'parseinline', 'replaceafter' ),
$td,
$userlinks,
$revision->getID(),
$tddate,
$tdtime,
$revision->getUser()
) .
"</div>\n" .
"\n\t\t\t\t<div id=\"mw-revision-nav\">" . $cdel . wfMsgExt( 'revision-nav', array( 'escapenoentities', 'parsemag', 'replaceafter' ),
$prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff ) . "</div>\n\t\t\t";
$wgOut->setSubtitle( $r );
}
/**
* This function is called right before saving the wikitext,
* so we can do things like signatures and links-in-context.
*
* @param $text String
*/
public 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)
*/
protected function tryFileCache() {
static $called = false;
if ( $called ) {
wfDebug( "Article::tryFileCache(): called twice!?\n" );
return false;
}
$called = true;
if ( $this->isFileCacheable() ) {
$cache = new HTMLFileCache( $this->mTitle );
if ( $cache->isFileCacheGood( $this->mTouched ) ) {
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" );
}
return false;
}
/**
* Check if the page can be cached
* @return bool
*/
public function isFileCacheable() {
$cacheable = false;
if ( HTMLFileCache::useFileCache() ) {
$cacheable = $this->getID() && !$this->mRedirectedFrom;
// Extension may have reason to disable file caching on some pages.
if ( $cacheable ) {
$cacheable = wfRunHooks( 'IsFileCacheable', array( &$this ) );
}
}
return $cacheable;
}
/**
* Loads page_touched and returns a value indicating if it should be used
*
*/
public function checkTouched() {
if ( !$this->mDataLoaded ) {
$this->loadPageData();
}
return !$this->mIsRedirect;
}
/**
* Get the page_touched field
*/
public function getTouched() {
# Ensure that page data has been loaded
if ( !$this->mDataLoaded ) {
$this->loadPageData();
}
return $this->mTouched;
}
/**
* Get the page_latest field
*/
public function getLatest() {
if ( !$this->mDataLoaded ) {
$this->loadPageData();
}
return (int)$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 $text String: text submitted
* @param $comment String: comment submitted
* @param $minor Boolean: whereas it's a minor modification
*/
public function quickEdit( $text, $comment = '', $minor = 0 ) {
wfProfileIn( __METHOD__ );
$dbw = wfGetDB( DB_MASTER );
$revision = new Revision( array(
'page' => $this->getId(),
'text' => $text,
'comment' => $comment,
'minor_edit' => $minor ? 1 : 0,
) );
$revision->insertOn( $dbw );
$this->updateRevisionOn( $dbw, $revision );
wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $revision, false, $wgUser ) );
wfProfileOut( __METHOD__ );
}
/**
* Used to increment the view counter
*
* @param $id Integer: article id
*/
public static function incViewCount( $id ) {
$id = intval( $id );
global $wgHitcounterUpdateFreq;
$dbw = wfGetDB( DB_MASTER );
$pageTable = $dbw->tableName( 'page' );
$hitcounterTable = $dbw->tableName( 'hitcounter' );
$acchitsTable = $dbw->tableName( 'acchits' );
$dbType = $dbw->getType();
if ( $wgHitcounterUpdateFreq <= 1 || $dbType == 'sqlite' ) {
$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->lockTables( array(), array( 'hitcounter' ), __METHOD__, false );
$tabletype = $dbType == 'mysql' ? "ENGINE=HEAP " : '';
$dbw->query( "CREATE TEMPORARY TABLE $acchitsTable $tabletype AS " .
"SELECT hc_id,COUNT(*) AS hc_n FROM $hitcounterTable " .
'GROUP BY hc_id', __METHOD__ );
$dbw->delete( 'hitcounter', '*', __METHOD__ );
$dbw->unlockTables( __METHOD__ );
if ( $dbType == 'mysql' ) {
$dbw->query( "UPDATE $pageTable,$acchitsTable SET page_counter=page_counter + hc_n " .
'WHERE page_id = hc_id', __METHOD__ );
}
else {
$dbw->query( "UPDATE $pageTable SET page_counter=page_counter + hc_n " .
"FROM $acchitsTable WHERE page_id = hc_id", __METHOD__ );
}
$dbw->query( "DROP TABLE $acchitsTable", __METHOD__ );
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
*
* @param $title a title object
*/
public static function onArticleCreate( $title ) {
# Update existence markers on article/talk tabs...
if ( $title->isTalkPage() ) {
$other = $title->getSubjectPage();
} else {
$other = $title->getTalkPage();
}
$other->invalidateCache();
$other->purgeSquid();
$title->touchLinks();
$title->purgeSquid();
$title->deleteTitleProtection();
}
public static function onArticleDelete( $title ) {
global $wgMessageCache;
# Update existence markers on article/talk tabs...
if ( $title->isTalkPage() ) {
$other = $title->getSubjectPage();
} else {
$other = $title->getTalkPage();
}
$other->invalidateCache();
$other->purgeSquid();
$title->touchLinks();
$title->purgeSquid();
# File cache
HTMLFileCache::clearFileCache( $title );
# Messages
if ( $title->getNamespace() == NS_MEDIAWIKI ) {
$wgMessageCache->replace( $title->getDBkey(), false );
}
# Images
if ( $title->getNamespace() == NS_FILE ) {
$update = new HTMLCacheUpdate( $title, 'imagelinks' );
$update->doUpdate();
}
# User talk pages
if ( $title->getNamespace() == NS_USER_TALK ) {
$user = User::newFromName( $title->getText(), false );
$user->setNewtalk( false );
}
# Image redirects
RepoGroup::singleton()->getLocalRepo()->invalidateImageRedirect( $title );
}
/**
* Purge caches on page update etc
*/
public static function onArticleEdit( $title, $flags = '' ) {
global $wgDeferredUpdateList;
// Invalidate caches of articles which include this page
$wgDeferredUpdateList[] = new HTMLCacheUpdate( $title, 'templatelinks' );
// Invalidate the caches of all pages which redirect here
$wgDeferredUpdateList[] = new HTMLCacheUpdate( $title, 'redirect' );
# Purge squid for this page only
$title->purgeSquid();
# Clear file cache for this page only
HTMLFileCache::clearFileCache( $title );
}
/**#@-*/
/**
* Overriden by ImagePage class, only present here to avoid a fatal error
* Called for ?action=revert
*/
public function revert() {
global $wgOut;
$wgOut->showErrorPage( 'nosuchaction', 'nosuchactiontext' );
}
/**
* 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->setPageTitleActionText( wfMsg( 'info_short' ) );
$wgOut->setSubtitle( wfMsgHtml( 'infosubtitle' ) );
if ( !$this->mTitle->exists() ) {
$wgOut->addHTML( '<div class="noarticletext">' );
if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
// This doesn't quite make sense; the user is asking for
// information about the _page_, not the message... -- RC
$wgOut->addHTML( htmlspecialchars( wfMsgWeirdKey( $this->mTitle->getText() ) ) );
} else {
$msg = $wgUser->isLoggedIn()
? 'noarticletext'
: 'noarticletextanon';
$wgOut->addHTML( wfMsgExt( $msg, 'parse' ) );
}
$wgOut->addHTML( '</div>' );
} 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 object
* @return array
*/
public 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 of Title objects
*/
public 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 ),
__METHOD__ );
if ( $res !== false ) {
foreach ( $res as $row ) {
$result[] = Title::makeTitle( $row->tl_namespace, $row->tl_title );
}
}
$dbr->freeResult( $res );
return $result;
}
/**
* Returns a list of hidden categories this page is a member of.
* Uses the page_props and categorylinks tables.
*
* @return Array of Title objects
*/
public function getHiddenCategories() {
$result = array();
$id = $this->mTitle->getArticleID();
if ( $id == 0 ) {
return array();
}
$dbr = wfGetDB( DB_SLAVE );
$res = $dbr->select( array( 'categorylinks', 'page_props', 'page' ),
array( 'cl_to' ),
array( 'cl_from' => $id, 'pp_page=page_id', 'pp_propname' => 'hiddencat',
'page_namespace' => NS_CATEGORY, 'page_title=cl_to' ),
__METHOD__ );
if ( $res !== false ) {
foreach ( $res as $row ) {
$result[] = Title::makeTitle( NS_CATEGORY, $row->cl_to );
}
}
$dbr->freeResult( $res );
return $result;
}
/**
* Return an applicable autosummary if one exists for the given edit.
* @param $oldtext String: the previous text of the page.
* @param $newtext String: The submitted text of the page.
* @param $flags Bitmask: a bitmask of flags submitted for the edit.
* @return string An appropriate autosummary, or an empty string.
*/
public static function getAutosummary( $oldtext, $newtext, $flags ) {
# Decide what kind of autosummary is needed.
# Redirect autosummaries
$ot = Title::newFromRedirect( $oldtext );
$rt = Title::newFromRedirect( $newtext );
if ( is_object( $rt ) && ( !is_object( $ot ) || !$rt->equals( $ot ) || $ot->getFragment() != $rt->getFragment() ) ) {
return wfMsgForContent( 'autoredircomment', $rt->getFullText() );
}
# New page autosummaries
if ( $flags & EDIT_NEW && strlen( $newtext ) ) {
# If they're making a new article, give its text, truncated, in the summary.
global $wgContLang;
$truncatedtext = $wgContLang->truncate(
str_replace( "\n", ' ', $newtext ),
max( 0, 200 - strlen( wfMsgForContent( 'autosumm-new' ) ) ) );
return wfMsgForContent( 'autosumm-new', $truncatedtext );
}
# Blanking autosummaries
if ( $oldtext != '' && $newtext == '' ) {
return wfMsgForContent( 'autosumm-blank' );
} elseif ( strlen( $oldtext ) > 10 * strlen( $newtext ) && strlen( $newtext ) < 500 ) {
# Removing more than 90% of the article
global $wgContLang;
$truncatedtext = $wgContLang->truncate(
$newtext,
max( 0, 200 - strlen( wfMsgForContent( 'autosumm-replace' ) ) ) );
return wfMsgForContent( 'autosumm-replace', $truncatedtext );
}
# If we reach this point, there's no applicable autosummary for our case, so our
# autosummary is empty.
return '';
}
/**
* Add the primary page-view wikitext to the output buffer
* Saves the text into the parser cache if possible.
* Updates templatelinks if it is out of date.
*
* @param $text String
* @param $cache Boolean
*/
public function outputWikiText( $text, $cache = true, $parserOptions = false ) {
global $wgOut;
$this->mParserOutput = $this->getOutputFromWikitext( $text, $cache, $parserOptions );
$wgOut->addParserOutput( $this->mParserOutput );
}
/**
* This does all the heavy lifting for outputWikitext, except it returns the parser
* output instead of sending it straight to $wgOut. Makes things nice and simple for,
* say, embedding thread pages within a discussion system (LiquidThreads)
*/
public function getOutputFromWikitext( $text, $cache = true, $parserOptions = false ) {
global $wgParser, $wgOut, $wgEnableParserCache, $wgUseFileCache;
if ( !$parserOptions ) {
$parserOptions = $this->getParserOptions();
}
$time = - wfTime();
$this->mParserOutput = $wgParser->parse( $text, $this->mTitle,
$parserOptions, true, true, $this->getRevIdFetched() );
$time += wfTime();
# Timing hack
if ( $time > 3 ) {
wfDebugLog( 'slow-parse', sprintf( "%-5.2f %s", $time,
$this->mTitle->getPrefixedDBkey() ) );
}
if ( $wgEnableParserCache && $cache && $this && $this->mParserOutput->getCacheTime() != -1 ) {
$parserCache = ParserCache::singleton();
$parserCache->save( $this->mParserOutput, $this, $parserOptions );
}
// Make sure file cache is not used on uncacheable content.
// Output that has magic words in it can still use the parser cache
// (if enabled), though it will generally expire sooner.
if ( $this->mParserOutput->getCacheTime() == -1 || $this->mParserOutput->containsOldMagic() ) {
$wgUseFileCache = false;
}
$this->doCascadeProtectionUpdates( $this->mParserOutput );
return $this->mParserOutput;
}
/**
* Get parser options suitable for rendering the primary article wikitext
*/
public function getParserOptions() {
global $wgUser;
if ( !$this->mParserOptions ) {
$this->mParserOptions = new ParserOptions( $wgUser );
$this->mParserOptions->setTidy( true );
$this->mParserOptions->enableLimitReport();
}
return $this->mParserOptions;
}
protected function doCascadeProtectionUpdates( $parserOutput ) {
if ( !$this->isCurrent() || wfReadOnly() || !$this->mTitle->areRestrictionsCascading() ) {
return;
}
// templatelinks table may have become out of sync,
// especially if using variable-based transclusions.
// For paranoia, check if things have changed and if
// so apply updates to the database. This will ensure
// that cascaded protections apply as soon as the changes
// are visible.
# Get templates from templatelinks
$id = $this->mTitle->getArticleID();
$tlTemplates = array();
$dbr = wfGetDB( DB_SLAVE );
$res = $dbr->select( array( 'templatelinks' ),
array( 'tl_namespace', 'tl_title' ),
array( 'tl_from' => $id ),
__METHOD__ );
global $wgContLang;
foreach ( $res as $row ) {
$tlTemplates["{$row->tl_namespace}:{$row->tl_title}"] = true;
}
# Get templates from parser output.
$poTemplates = array();
foreach ( $parserOutput->getTemplates() as $ns => $templates ) {
foreach ( $templates as $dbk => $id ) {
$poTemplates["$ns:$dbk"] = true;
}
}
# Get the diff
# Note that we simulate array_diff_key in PHP <5.0.x
$templates_diff = array_diff_key( $poTemplates, $tlTemplates );
if ( count( $templates_diff ) > 0 ) {
# Whee, link updates time.
$u = new LinksUpdate( $this->mTitle, $parserOutput, false );
$u->doUpdate();
}
}
/**
* Update all the appropriate counts in the category table, given that
* we've added the categories $added and deleted the categories $deleted.
*
* @param $added array The names of categories that were added
* @param $deleted array The names of categories that were deleted
* @return null
*/
public function updateCategoryCounts( $added, $deleted ) {
$ns = $this->mTitle->getNamespace();
$dbw = wfGetDB( DB_MASTER );
# First make sure the rows exist. If one of the "deleted" ones didn't
# exist, we might legitimately not create it, but it's simpler to just
# create it and then give it a negative value, since the value is bogus
# anyway.
#
# Sometimes I wish we had INSERT ... ON DUPLICATE KEY UPDATE.
$insertCats = array_merge( $added, $deleted );
if ( !$insertCats ) {
# Okay, nothing to do
return;
}
$insertRows = array();
foreach ( $insertCats as $cat ) {
$insertRows[] = array(
'cat_id' => $dbw->nextSequenceValue( 'category_cat_id_seq' ),
'cat_title' => $cat
);
}
$dbw->insert( 'category', $insertRows, __METHOD__, 'IGNORE' );
$addFields = array( 'cat_pages = cat_pages + 1' );
$removeFields = array( 'cat_pages = cat_pages - 1' );
if ( $ns == NS_CATEGORY ) {
$addFields[] = 'cat_subcats = cat_subcats + 1';
$removeFields[] = 'cat_subcats = cat_subcats - 1';
} elseif ( $ns == NS_FILE ) {
$addFields[] = 'cat_files = cat_files + 1';
$removeFields[] = 'cat_files = cat_files - 1';
}
if ( $added ) {
$dbw->update(
'category',
$addFields,
array( 'cat_title' => $added ),
__METHOD__
);
}
if ( $deleted ) {
$dbw->update(
'category',
$removeFields,
array( 'cat_title' => $deleted ),
__METHOD__
);
}
}
/** Lightweight method to get the parser output for a page, checking the parser cache
* and so on. Doesn't consider most of the stuff that Article::view is forced to
* consider, so it's not appropriate to use there.
*/
function getParserOutput( $oldid = null ) {
global $wgEnableParserCache, $wgUser, $wgOut;
// Should the parser cache be used?
$useParserCache = $wgEnableParserCache &&
intval( $wgUser->getOption( 'stubthreshold' ) ) == 0 &&
$this->exists() &&
$oldid === null;
wfDebug( __METHOD__ . ': using parser cache: ' . ( $useParserCache ? 'yes' : 'no' ) . "\n" );
if ( $wgUser->getOption( 'stubthreshold' ) ) {
wfIncrStats( 'pcache_miss_stub' );
}
$parserOutput = false;
if ( $useParserCache ) {
$parserOutput = ParserCache::singleton()->get( $this, $this->getParserOptions() );
}
if ( $parserOutput === false ) {
// Cache miss; parse and output it.
$rev = Revision::newFromTitle( $this->getTitle(), $oldid );
return $this->getOutputFromWikitext( $rev->getText(), $useParserCache );
} else {
return $parserOutput;
}
}
}