Current File : //data/www_bck/varak.net_bck/havranipapuce.varak.net/includes/page/Article.php
<?php
/**
* User interface for page actions.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* Class for viewing MediaWiki article and history.
*
* This maintains WikiPage functions for backwards compatibility.
*
* @todo Move and rewrite code to an Action class
*
* See design.txt for an overview.
* Note: edit user interface and cache support functions have been
* moved to separate EditPage and HTMLFileCache classes.
*/
class Article implements Page {
/** @var IContextSource The context this Article is executed in */
protected $mContext;
/** @var WikiPage The WikiPage object of this instance */
protected $mPage;
/** @var ParserOptions ParserOptions object for $wgUser articles */
public $mParserOptions;
/**
* @var string Text of the revision we are working on
* @todo BC cruft
*/
public $mContent;
/**
* @var Content Content of the revision we are working on
* @since 1.21
*/
public $mContentObject;
/** @var bool Is the content ($mContent) already loaded? */
public $mContentLoaded = false;
/** @var int|null The oldid of the article that is to be shown, 0 for the current revision */
public $mOldId;
/** @var Title Title from which we were redirected here */
public $mRedirectedFrom = null;
/** @var string|bool URL to redirect to or false if none */
public $mRedirectUrl = false;
/** @var int Revision ID of revision we are working on */
public $mRevIdFetched = 0;
/** @var Revision Revision we are working on */
public $mRevision = null;
/** @var ParserOutput */
public $mParserOutput;
/**
* Constructor and clear the article
* @param Title $title Reference to a Title object.
* @param int $oldId Revision ID, null to fetch from request, zero for current
*/
public function __construct( Title $title, $oldId = null ) {
$this->mOldId = $oldId;
$this->mPage = $this->newPage( $title );
}
/**
* @param Title $title
* @return WikiPage
*/
protected function newPage( Title $title ) {
return new WikiPage( $title );
}
/**
* Constructor from a page id
* @param int $id Article ID to load
* @return Article|null
*/
public static function newFromID( $id ) {
$t = Title::newFromID( $id );
# @todo FIXME: Doesn't inherit right
return $t == null ? null : new self( $t );
# return $t == null ? null : new static( $t ); // PHP 5.3
}
/**
* Create an Article object of the appropriate class for the given page.
*
* @param Title $title
* @param IContextSource $context
* @return Article
*/
public static function newFromTitle( $title, IContextSource $context ) {
if ( NS_MEDIA == $title->getNamespace() ) {
// FIXME: where should this go?
$title = Title::makeTitle( NS_FILE, $title->getDBkey() );
}
$page = null;
Hooks::run( 'ArticleFromTitle', array( &$title, &$page, $context ) );
if ( !$page ) {
switch ( $title->getNamespace() ) {
case NS_FILE:
$page = new ImagePage( $title );
break;
case NS_CATEGORY:
$page = new CategoryPage( $title );
break;
default:
$page = new Article( $title );
}
}
$page->setContext( $context );
return $page;
}
/**
* Create an Article object of the appropriate class for the given page.
*
* @param WikiPage $page
* @param IContextSource $context
* @return Article
*/
public static function newFromWikiPage( WikiPage $page, IContextSource $context ) {
$article = self::newFromTitle( $page->getTitle(), $context );
$article->mPage = $page; // override to keep process cached vars
return $article;
}
/**
* Tell the page view functions that this view was redirected
* from another page on the wiki.
* @param Title $from
*/
public function setRedirectedFrom( Title $from ) {
$this->mRedirectedFrom = $from;
}
/**
* Get the title object of the article
*
* @return Title Title object of this page
*/
public function getTitle() {
return $this->mPage->getTitle();
}
/**
* Get the WikiPage object of this instance
*
* @since 1.19
* @return WikiPage
*/
public function getPage() {
return $this->mPage;
}
/**
* Clear the object
*/
public function clear() {
$this->mContentLoaded = false;
$this->mRedirectedFrom = null; # Title object if set
$this->mRevIdFetched = 0;
$this->mRedirectUrl = false;
$this->mPage->clear();
}
/**
* Note that getContent/loadContent do not follow redirects anymore.
* If you need to fetch redirectable content easily, try
* the shortcut in WikiPage::getRedirectTarget()
*
* This function has side effects! Do not use this function if you
* only want the real revision text if any.
*
* @deprecated since 1.21; use WikiPage::getContent() instead
*
* @return string Return the text of this revision
*/
public function getContent() {
ContentHandler::deprecated( __METHOD__, '1.21' );
$content = $this->getContentObject();
return ContentHandler::getContentText( $content );
}
/**
* Returns a Content object representing the pages effective display content,
* not necessarily the revision's content!
*
* Note that getContent/loadContent do not follow redirects anymore.
* If you need to fetch redirectable content easily, try
* the shortcut in WikiPage::getRedirectTarget()
*
* This function has side effects! Do not use this function if you
* only want the real revision text if any.
*
* @return Content Return the content of this revision
*
* @since 1.21
*/
protected function getContentObject() {
if ( $this->mPage->getID() === 0 ) {
# If this is a MediaWiki:x message, then load the messages
# and return the message value for x.
if ( $this->getTitle()->getNamespace() == NS_MEDIAWIKI ) {
$text = $this->getTitle()->getDefaultMessageText();
if ( $text === false ) {
$text = '';
}
$content = ContentHandler::makeContent( $text, $this->getTitle() );
} else {
$message = $this->getContext()->getUser()->isLoggedIn() ? 'noarticletext' : 'noarticletextanon';
$content = new MessageContent( $message, null, 'parsemag' );
}
} else {
$this->fetchContentObject();
$content = $this->mContentObject;
}
return $content;
}
/**
* @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() {
$this->mRedirectUrl = false;
$request = $this->getContext()->getRequest();
$oldid = $request->getIntOrNull( 'oldid' );
if ( $oldid === null ) {
return 0;
}
if ( $oldid !== 0 ) {
# Load the given revision and check whether the page is another one.
# In that case, update this instance to reflect the change.
if ( $oldid === $this->mPage->getLatest() ) {
$this->mRevision = $this->mPage->getRevision();
} else {
$this->mRevision = Revision::newFromId( $oldid );
if ( $this->mRevision !== null ) {
// Revision title doesn't match the page title given?
if ( $this->mPage->getID() != $this->mRevision->getPage() ) {
$function = array( get_class( $this->mPage ), 'newFromID' );
$this->mPage = call_user_func( $function, $this->mRevision->getPage() );
}
}
}
}
if ( $request->getVal( 'direction' ) == 'next' ) {
$nextid = $this->getTitle()->getNextRevisionID( $oldid );
if ( $nextid ) {
$oldid = $nextid;
$this->mRevision = null;
} else {
$this->mRedirectUrl = $this->getTitle()->getFullURL( 'redirect=no' );
}
} elseif ( $request->getVal( 'direction' ) == 'prev' ) {
$previd = $this->getTitle()->getPreviousRevisionID( $oldid );
if ( $previd ) {
$oldid = $previd;
$this->mRevision = null;
}
}
return $oldid;
}
/**
* Load the revision (including text) into this object
*
* @deprecated since 1.19; use fetchContent()
*/
function loadContent() {
wfDeprecated( __METHOD__, '1.19' );
$this->fetchContent();
}
/**
* Get text of an article from database
* Does *NOT* follow redirects.
*
* @protected
* @note This is really internal functionality that should really NOT be
* used by other functions. For accessing article content, use the WikiPage
* class, especially WikiBase::getContent(). However, a lot of legacy code
* uses this method to retrieve page text from the database, so the function
* has to remain public for now.
*
* @return string|bool String containing article contents, or false if null
* @deprecated since 1.21, use WikiPage::getContent() instead
*/
function fetchContent() { #BC cruft!
ContentHandler::deprecated( __METHOD__, '1.21' );
if ( $this->mContentLoaded && $this->mContent ) {
return $this->mContent;
}
$content = $this->fetchContentObject();
if ( !$content ) {
return false;
}
// @todo Get rid of mContent everywhere!
$this->mContent = ContentHandler::getContentText( $content );
ContentHandler::runLegacyHooks( 'ArticleAfterFetchContent', array( &$this, &$this->mContent ) );
return $this->mContent;
}
/**
* Get text content object
* Does *NOT* follow redirects.
* @todo When is this null?
*
* @note Code that wants to retrieve page content from the database should
* use WikiPage::getContent().
*
* @return Content|null|bool
*
* @since 1.21
*/
protected function fetchContentObject() {
if ( $this->mContentLoaded ) {
return $this->mContentObject;
}
$this->mContentLoaded = true;
$this->mContent = null;
$oldid = $this->getOldID();
# Pre-fill content with error message so that if something
# fails we'll have something telling us what we intended.
//XXX: this isn't page content but a UI message. horrible.
$this->mContentObject = new MessageContent( 'missing-revision', array( $oldid ) );
if ( $oldid ) {
# $this->mRevision might already be fetched by getOldIDFromRequest()
if ( !$this->mRevision ) {
$this->mRevision = Revision::newFromId( $oldid );
if ( !$this->mRevision ) {
wfDebug( __METHOD__ . " failed to retrieve specified revision, id $oldid\n" );
return false;
}
}
} else {
$oldid = $this->mPage->getLatest();
if ( !$oldid ) {
wfDebug( __METHOD__ . " failed to find page data for title " .
$this->getTitle()->getPrefixedText() . "\n" );
return false;
}
# Update error message with correct oldid
$this->mContentObject = new MessageContent( 'missing-revision', array( $oldid ) );
$this->mRevision = $this->mPage->getRevision();
if ( !$this->mRevision ) {
wfDebug( __METHOD__ . " failed to retrieve current page, rev_id $oldid\n" );
return false;
}
}
// @todo FIXME: Horrible, horrible! This content-loading interface just plain sucks.
// We should instead work with the Revision object when we need it...
// Loads if user is allowed
$content = $this->mRevision->getContent(
Revision::FOR_THIS_USER,
$this->getContext()->getUser()
);
if ( !$content ) {
wfDebug( __METHOD__ . " failed to retrieve content of revision " .
$this->mRevision->getId() . "\n" );
return false;
}
$this->mContentObject = $content;
$this->mRevIdFetched = $this->mRevision->getId();
Hooks::run( 'ArticleAfterFetchContentObject', array( &$this, &$this->mContentObject ) );
return $this->mContentObject;
}
/**
* 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->mPage->exists() && $this->mRevision && $this->mRevision->isCurrent();
}
/**
* Get the fetched Revision object depending on request parameters or null
* on failure.
*
* @since 1.19
* @return Revision|null
*/
public function getRevisionFetched() {
$this->fetchContentObject();
return $this->mRevision;
}
/**
* Use this to fetch the rev ID used on page views
*
* @return int Revision ID of last article revision
*/
public function getRevIdFetched() {
if ( $this->mRevIdFetched ) {
return $this->mRevIdFetched;
} else {
return $this->mPage->getLatest();
}
}
/**
* This is the default action of the index.php entry point: just view the
* page of the given title.
*/
public function view() {
global $wgUseFileCache, $wgUseETag, $wgDebugToolbar, $wgMaxRedirects;
# Get variables from query string
# As side effect this will load the revision and update the title
# in a revision ID is passed in the request, so this should remain
# the first call of this method even if $oldid is used way below.
$oldid = $this->getOldID();
$user = $this->getContext()->getUser();
# Another whitelist check in case getOldID() is altering the title
$permErrors = $this->getTitle()->getUserPermissionsErrors( 'read', $user );
if ( count( $permErrors ) ) {
wfDebug( __METHOD__ . ": denied on secondary read check\n" );
throw new PermissionsError( 'read', $permErrors );
}
$outputPage = $this->getContext()->getOutput();
# getOldID() may as well want us to redirect somewhere else
if ( $this->mRedirectUrl ) {
$outputPage->redirect( $this->mRedirectUrl );
wfDebug( __METHOD__ . ": redirecting due to oldid\n" );
return;
}
# If we got diff in the query, we want to see a diff page instead of the article.
if ( $this->getContext()->getRequest()->getCheck( 'diff' ) ) {
wfDebug( __METHOD__ . ": showing diff page\n" );
$this->showDiffPage();
return;
}
# Set page title (may be overridden by DISPLAYTITLE)
$outputPage->setPageTitle( $this->getTitle()->getPrefixedText() );
$outputPage->setArticleFlag( true );
# Allow frames by default
$outputPage->allowClickjacking();
$parserCache = ParserCache::singleton();
$parserOptions = $this->getParserOptions();
# Render printable version, use printable version cache
if ( $outputPage->isPrintable() ) {
$parserOptions->setIsPrintable( true );
$parserOptions->setEditSection( false );
} elseif ( !$this->isCurrent() || !$this->getTitle()->quickUserCan( 'edit', $user ) ) {
$parserOptions->setEditSection( false );
}
# Try client and file cache
if ( !$wgDebugToolbar && $oldid === 0 && $this->mPage->checkTouched() ) {
if ( $wgUseETag ) {
$outputPage->setETag( $parserCache->getETag( $this, $parserOptions ) );
}
# Use the greatest of the page's timestamp or the timestamp of any
# redirect in the chain (bug 67849)
$timestamp = $this->mPage->getTouched();
if ( isset( $this->mRedirectedFrom ) ) {
$timestamp = max( $timestamp, $this->mRedirectedFrom->getTouched() );
# If there can be more than one redirect in the chain, we have
# to go through the whole chain too in case an intermediate
# redirect was changed.
if ( $wgMaxRedirects > 1 ) {
$titles = Revision::newFromTitle( $this->mRedirectedFrom )
->getContent( Revision::FOR_THIS_USER, $user )
->getRedirectChain();
$thisTitle = $this->getTitle();
foreach ( $titles as $title ) {
if ( Title::compare( $title, $thisTitle ) === 0 ) {
break;
}
$timestamp = max( $timestamp, $title->getTouched() );
}
}
}
# Is it client cached?
if ( $outputPage->checkLastModified( $timestamp ) ) {
wfDebug( __METHOD__ . ": done 304\n" );
return;
# Try file cache
} elseif ( $wgUseFileCache && $this->tryFileCache() ) {
wfDebug( __METHOD__ . ": done file cache\n" );
# tell wgOut that output is taken care of
$outputPage->disable();
$this->mPage->doViewUpdates( $user, $oldid );
return;
}
}
# Should the parser cache be used?
$useParserCache = $this->mPage->isParserCacheUsed( $parserOptions, $oldid );
wfDebug( 'Article::view using parser cache: ' . ( $useParserCache ? 'yes' : 'no' ) . "\n" );
if ( $user->getStubThreshold() ) {
$this->getContext()->getStats()->increment( 'pcache_miss_stub' );
}
$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 ( $pass ) {
case 1:
Hooks::run( 'ArticleViewHeader', array( &$this, &$outputDone, &$useParserCache ) );
break;
case 2:
# Early abort if the page doesn't exist
if ( !$this->mPage->exists() ) {
wfDebug( __METHOD__ . ": showing missing article\n" );
$this->showMissingArticle();
$this->mPage->doViewUpdates( $user );
return;
}
# Try the parser cache
if ( $useParserCache ) {
$this->mParserOutput = $parserCache->get( $this, $parserOptions );
if ( $this->mParserOutput !== false ) {
if ( $oldid ) {
wfDebug( __METHOD__ . ": showing parser cache contents for current rev permalink\n" );
$this->setOldSubtitle( $oldid );
} else {
wfDebug( __METHOD__ . ": showing parser cache contents\n" );
}
$outputPage->addParserOutput( $this->mParserOutput );
# Ensure that UI elements requiring revision ID have
# the correct version information.
$outputPage->setRevisionId( $this->mPage->getLatest() );
# Preload timestamp to avoid a DB hit
$cachedTimestamp = $this->mParserOutput->getTimestamp();
if ( $cachedTimestamp !== null ) {
$outputPage->setRevisionTimestamp( $cachedTimestamp );
$this->mPage->setTimestamp( $cachedTimestamp );
}
$outputDone = true;
}
}
break;
case 3:
# This will set $this->mRevision if needed
$this->fetchContentObject();
# Are we looking at an old revision
if ( $oldid && $this->mRevision ) {
$this->setOldSubtitle( $oldid );
if ( !$this->showDeletedRevisionHeader() ) {
wfDebug( __METHOD__ . ": cannot view deleted revision\n" );
return;
}
}
# Ensure that UI elements requiring revision ID have
# the correct version information.
$outputPage->setRevisionId( $this->getRevIdFetched() );
# Preload timestamp to avoid a DB hit
$outputPage->setRevisionTimestamp( $this->getTimestamp() );
# Pages containing custom CSS or JavaScript get special treatment
if ( $this->getTitle()->isCssOrJsPage() || $this->getTitle()->isCssJsSubpage() ) {
wfDebug( __METHOD__ . ": showing CSS/JS source\n" );
$this->showCssOrJsPage();
$outputDone = true;
} elseif ( !Hooks::run( 'ArticleContentViewCustom',
array( $this->fetchContentObject(), $this->getTitle(), $outputPage ) ) ) {
# Allow extensions do their own custom view for certain pages
$outputDone = true;
} elseif ( !ContentHandler::runLegacyHooks( 'ArticleViewCustom',
array( $this->fetchContentObject(), $this->getTitle(), $outputPage ) ) ) {
# Allow extensions do their own custom view for certain pages
$outputDone = true;
}
break;
case 4:
# Run the parse, protected by a pool counter
wfDebug( __METHOD__ . ": doing uncached parse\n" );
$content = $this->getContentObject();
$poolArticleView = new PoolWorkArticleView( $this->getPage(), $parserOptions,
$this->getRevIdFetched(), $useParserCache, $content );
if ( !$poolArticleView->execute() ) {
$error = $poolArticleView->getError();
if ( $error ) {
$outputPage->clearHTML(); // for release() errors
$outputPage->enableClientCache( false );
$outputPage->setRobotPolicy( 'noindex,nofollow' );
$errortext = $error->getWikiText( false, 'view-pool-error' );
$outputPage->addWikiText( '<div class="errorbox">' . $errortext . '</div>' );
}
# Connection or timeout error
return;
}
$this->mParserOutput = $poolArticleView->getParserOutput();
$outputPage->addParserOutput( $this->mParserOutput );
if ( $content->getRedirectTarget() ) {
$outputPage->addSubtitle( "<span id=\"redirectsub\">" .
$this->getContext()->msg( 'redirectpagesub' )->parse() . "</span>" );
}
# Don't cache a dirty ParserOutput object
if ( $poolArticleView->getIsDirty() ) {
$outputPage->setSquidMaxage( 0 );
$outputPage->addHTML( "<!-- parser cache is expired, " .
"sending anyway due to pool overload-->\n" );
}
$outputDone = true;
break;
# Should be unreachable, but just in case...
default:
break 2;
}
}
# Get the ParserOutput actually *displayed* here.
# Note that $this->mParserOutput is the *current*/oldid version output.
$pOutput = ( $outputDone instanceof ParserOutput )
? $outputDone // object fetched by hook
: $this->mParserOutput;
# Adjust title for main page & pages with displaytitle
if ( $pOutput ) {
$this->adjustDisplayTitle( $pOutput );
}
# For the main page, overwrite the <title> element with the con-
# tents of 'pagetitle-view-mainpage' instead of the default (if
# that's not empty).
# This message always exists because it is in the i18n files
if ( $this->getTitle()->isMainPage() ) {
$msg = wfMessage( 'pagetitle-view-mainpage' )->inContentLanguage();
if ( !$msg->isDisabled() ) {
$outputPage->setHTMLTitle( $msg->title( $this->getTitle() )->text() );
}
}
# Check for any __NOINDEX__ tags on the page using $pOutput
$policy = $this->getRobotPolicy( 'view', $pOutput );
$outputPage->setIndexPolicy( $policy['index'] );
$outputPage->setFollowPolicy( $policy['follow'] );
$this->showViewFooter();
$this->mPage->doViewUpdates( $user, $oldid );
$outputPage->addModules( 'mediawiki.action.view.postEdit' );
}
/**
* Adjust title for pages with displaytitle, -{T|}- or language conversion
* @param ParserOutput $pOutput
*/
public function adjustDisplayTitle( ParserOutput $pOutput ) {
# Adjust the title if it was set by displaytitle, -{T|}- or language conversion
$titleText = $pOutput->getTitleText();
if ( strval( $titleText ) !== '' ) {
$this->getContext()->getOutput()->setPageTitle( $titleText );
}
}
/**
* Show a diff page according to current request variables. For use within
* Article::view() only, other callers should use the DifferenceEngine class.
*
*/
protected function showDiffPage() {
$request = $this->getContext()->getRequest();
$user = $this->getContext()->getUser();
$diff = $request->getVal( 'diff' );
$rcid = $request->getVal( 'rcid' );
$diffOnly = $request->getBool( 'diffonly', $user->getOption( 'diffonly' ) );
$purge = $request->getVal( 'action' ) == 'purge';
$unhide = $request->getInt( 'unhide' ) == 1;
$oldid = $this->getOldID();
$rev = $this->getRevisionFetched();
if ( !$rev ) {
$this->getContext()->getOutput()->setPageTitle( wfMessage( 'errorpagetitle' ) );
$msg = $this->getContext()->msg( 'difference-missing-revision' )
->params( $oldid )
->numParams( 1 )
->parseAsBlock();
$this->getContext()->getOutput()->addHtml( $msg );
return;
}
$contentHandler = $rev->getContentHandler();
$de = $contentHandler->createDifferenceEngine(
$this->getContext(),
$oldid,
$diff,
$rcid,
$purge,
$unhide
);
// DifferenceEngine directly fetched the revision:
$this->mRevIdFetched = $de->mNewid;
$de->showDiffPage( $diffOnly );
// Run view updates for the newer revision being diffed (and shown
// below the diff if not $diffOnly).
list( $old, $new ) = $de->mapDiffPrevNext( $oldid, $diff );
// New can be false, convert it to 0 - this conveniently means the latest revision
$this->mPage->doViewUpdates( $user, (int)$new );
}
/**
* Show a page view for a page formatted as CSS or JavaScript. To be called by
* Article::view() only.
*
* This exists mostly to serve the deprecated ShowRawCssJs hook (used to customize these views).
* It has been replaced by the ContentGetParserOutput hook, which lets you do the same but with
* more flexibility.
*
* @param bool $showCacheHint Whether to show a message telling the user
* to clear the browser cache (default: true).
*/
protected function showCssOrJsPage( $showCacheHint = true ) {
$outputPage = $this->getContext()->getOutput();
if ( $showCacheHint ) {
$dir = $this->getContext()->getLanguage()->getDir();
$lang = $this->getContext()->getLanguage()->getHtmlCode();
$outputPage->wrapWikiMsg(
"<div id='mw-clearyourcache' lang='$lang' dir='$dir' class='mw-content-$dir'>\n$1\n</div>",
'clearyourcache'
);
}
$this->fetchContentObject();
if ( $this->mContentObject ) {
// Give hooks a chance to customise the output
if ( ContentHandler::runLegacyHooks(
'ShowRawCssJs',
array( $this->mContentObject, $this->getTitle(), $outputPage ) )
) {
// If no legacy hooks ran, display the content of the parser output, including RL modules,
// but excluding metadata like categories and language links
$po = $this->mContentObject->getParserOutput( $this->getTitle() );
$outputPage->addParserOutputContent( $po );
}
}
}
/**
* Get the robot policy to be used for the current view
* @param string $action The action= GET parameter
* @param ParserOutput|null $pOutput
* @return array The policy that should be set
* @todo actions other than 'view'
*/
public function getRobotPolicy( $action, $pOutput = null ) {
global $wgArticleRobotPolicies, $wgNamespaceRobotPolicies, $wgDefaultRobotPolicy;
$ns = $this->getTitle()->getNamespace();
# Don't index user and user talk pages for blocked users (bug 11443)
if ( ( $ns == NS_USER || $ns == NS_USER_TALK ) && !$this->getTitle()->isSubpage() ) {
$specificTarget = null;
$vagueTarget = null;
$titleText = $this->getTitle()->getText();
if ( IP::isValid( $titleText ) ) {
$vagueTarget = $titleText;
} else {
$specificTarget = $titleText;
}
if ( Block::newFromTarget( $specificTarget, $vagueTarget ) instanceof Block ) {
return array(
'index' => 'noindex',
'follow' => 'nofollow'
);
}
}
if ( $this->mPage->getID() === 0 || $this->getOldID() ) {
# Non-articles (special pages etc), and old revisions
return array(
'index' => 'noindex',
'follow' => 'nofollow'
);
} elseif ( $this->getContext()->getOutput()->isPrintable() ) {
# Discourage indexing of printable versions, but encourage following
return array(
'index' => 'noindex',
'follow' => 'follow'
);
} elseif ( $this->getContext()->getRequest()->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->getTitle()->canUseNoindex() && is_object( $pOutput ) && $pOutput->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' => $pOutput->getIndexPolicy() )
);
}
if ( isset( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] ) ) {
# (bug 14900) site config can override user-defined __INDEX__ or __NOINDEX__
$policy = array_merge(
$policy,
self::formatRobotPolicy( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] )
);
}
return $policy;
}
/**
* Converts a String robot policy into an associative array, to allow
* merging of several policies using array_merge().
* @param array|string $policy Returns empty array on null/false/'', transparent
* to already-converted arrays, converts string.
* @return 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
* the output. Returns true if the header was needed, false if this is not
* a redirect view. Handles both local and remote redirects.
*
* @return bool
*/
public function showRedirectedFromHeader() {
global $wgRedirectSources;
$context = $this->getContext();
$outputPage = $context->getOutput();
$request = $context->getRequest();
$rdfrom = $request->getVal( 'rdfrom' );
// Construct a URL for the current page view, but with the target title
$query = $request->getValues();
unset( $query['rdfrom'] );
unset( $query['title'] );
if ( $this->getTitle()->isRedirect() ) {
// Prevent double redirects
$query['redirect'] = 'no';
}
$redirectTargetUrl = $this->getTitle()->getLinkURL( $query );
if ( isset( $this->mRedirectedFrom ) ) {
// This is an internally redirected page view.
// We'll need a backlink to the source page for navigation.
if ( Hooks::run( 'ArticleViewRedirect', array( &$this ) ) ) {
$redir = Linker::linkKnown(
$this->mRedirectedFrom,
null,
array(),
array( 'redirect' => 'no' )
);
$outputPage->addSubtitle( "<span class=\"mw-redirectedfrom\">" .
$context->msg( 'redirectedfrom' )->rawParams( $redir )->parse()
. "</span>" );
// Add the script to update the displayed URL and
// set the fragment if one was specified in the redirect
$outputPage->addJsConfigVars( array(
'wgInternalRedirectTargetUrl' => $redirectTargetUrl,
) );
$outputPage->addModules( 'mediawiki.action.view.redirect' );
// Add a <link rel="canonical"> tag
$outputPage->setCanonicalUrl( $this->getTitle()->getLocalURL() );
// Tell the output object that the user arrived at this article through a redirect
$outputPage->setRedirectedFrom( $this->mRedirectedFrom );
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 = Linker::makeExternalLink( $rdfrom, $rdfrom );
$outputPage->addSubtitle( "<span class=\"mw-redirectedfrom\">" .
$context->msg( 'redirectedfrom' )->rawParams( $redir )->parse()
. "</span>" );
// Add the script to update the displayed URL
$outputPage->addJsConfigVars( array(
'wgInternalRedirectTargetUrl' => $redirectTargetUrl,
) );
$outputPage->addModules( 'mediawiki.action.view.redirect' );
return true;
}
}
return false;
}
/**
* Show a header specific to the namespace currently being viewed, like
* [[MediaWiki:Talkpagetext]]. For Article::view().
*/
public function showNamespaceHeader() {
if ( $this->getTitle()->isTalkPage() ) {
if ( !wfMessage( 'talkpageheader' )->isDisabled() ) {
$this->getContext()->getOutput()->wrapWikiMsg(
"<div class=\"mw-talkpageheader\">\n$1\n</div>",
array( 'talkpageheader' )
);
}
}
}
/**
* Show the footer section of an ordinary page view
*/
public function showViewFooter() {
# check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
if ( $this->getTitle()->getNamespace() == NS_USER_TALK
&& IP::isValid( $this->getTitle()->getText() )
) {
$this->getContext()->getOutput()->addWikiMsg( 'anontalkpagetext' );
}
// Show a footer allowing the user to patrol the shown revision or page if possible
$patrolFooterShown = $this->showPatrolFooter();
Hooks::run( 'ArticleViewFooter', array( $this, $patrolFooterShown ) );
}
/**
* 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.
* Side effect: When the patrol link is build, this method will call
* OutputPage::preventClickjacking() and load mediawiki.page.patrol.ajax.
*
* @return bool
*/
public function showPatrolFooter() {
global $wgUseNPPatrol, $wgUseRCPatrol, $wgEnableAPI, $wgEnableWriteAPI;
$outputPage = $this->getContext()->getOutput();
$user = $this->getContext()->getUser();
$cache = wfGetMainCache();
$rc = false;
if ( !$this->getTitle()->quickUserCan( 'patrol', $user )
|| !( $wgUseRCPatrol || $wgUseNPPatrol )
) {
// Patrolling is disabled or the user isn't allowed to
return false;
}
// New page patrol: Get the timestamp of the oldest revison which
// the revision table holds for the given page. Then we look
// whether it's within the RC lifespan and if it is, we try
// to get the recentchanges row belonging to that entry
// (with rc_new = 1).
// Check for cached results
if ( $cache->get( wfMemcKey( 'NotPatrollablePage', $this->getTitle()->getArticleID() ) ) ) {
return false;
}
if ( $this->mRevision
&& !RecentChange::isInRCLifespan( $this->mRevision->getTimestamp(), 21600 )
) {
// The current revision is already older than what could be in the RC table
// 6h tolerance because the RC might not be cleaned out regularly
return false;
}
$dbr = wfGetDB( DB_SLAVE );
$oldestRevisionTimestamp = $dbr->selectField(
'revision',
'MIN( rev_timestamp )',
array( 'rev_page' => $this->getTitle()->getArticleID() ),
__METHOD__
);
if ( $oldestRevisionTimestamp
&& RecentChange::isInRCLifespan( $oldestRevisionTimestamp, 21600 )
) {
// 6h tolerance because the RC might not be cleaned out regularly
$rc = RecentChange::newFromConds(
array(
'rc_new' => 1,
'rc_timestamp' => $oldestRevisionTimestamp,
'rc_namespace' => $this->getTitle()->getNamespace(),
'rc_cur_id' => $this->getTitle()->getArticleID(),
'rc_patrolled' => 0
),
__METHOD__,
array( 'USE INDEX' => 'new_name_timestamp' )
);
}
if ( !$rc ) {
// No RC entry around
// Cache the information we gathered above in case we can't patrol
// Don't cache in case we can patrol as this could change
$cache->set( wfMemcKey( 'NotPatrollablePage', $this->getTitle()->getArticleID() ), '1' );
return false;
}
if ( $rc->getPerformer()->equals( $user ) ) {
// Don't show a patrol link for own creations. If the user could
// patrol them, they already would be patrolled
return false;
}
$rcid = $rc->getAttribute( 'rc_id' );
$token = $user->getEditToken( $rcid );
$outputPage->preventClickjacking();
if ( $wgEnableAPI && $wgEnableWriteAPI && $user->isAllowed( 'writeapi' ) ) {
$outputPage->addModules( 'mediawiki.page.patrol.ajax' );
}
$link = Linker::linkKnown(
$this->getTitle(),
wfMessage( 'markaspatrolledtext' )->escaped(),
array(),
array(
'action' => 'markpatrolled',
'rcid' => $rcid,
'token' => $token,
)
);
$outputPage->addHTML(
"<div class='patrollink'>" .
wfMessage( 'markaspatrolledlink' )->rawParams( $link )->escaped() .
'</div>'
);
return true;
}
/**
* 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 $wgSend404Code;
$outputPage = $this->getContext()->getOutput();
// Whether the page is a root user page of an existing user (but not a subpage)
$validUserPage = false;
$title = $this->getTitle();
# Show info in user (talk) namespace. Does the user exist? Is he blocked?
if ( $title->getNamespace() == NS_USER
|| $title->getNamespace() == NS_USER_TALK
) {
$parts = explode( '/', $title->getText() );
$rootPart = $parts[0];
$user = User::newFromName( $rootPart, false /* allow IP users*/ );
$ip = User::isIP( $rootPart );
$block = Block::newFromTarget( $user, $user );
if ( !( $user && $user->isLoggedIn() ) && !$ip ) { # User does not exist
$outputPage->wrapWikiMsg( "<div class=\"mw-userpage-userdoesnotexist error\">\n\$1\n</div>",
array( 'userpage-userdoesnotexist-view', wfEscapeWikiText( $rootPart ) ) );
} elseif ( !is_null( $block ) && $block->getType() != Block::TYPE_AUTO ) {
# Show log extract if the user is currently blocked
LogEventsList::showLogExtract(
$outputPage,
'block',
MWNamespace::getCanonicalName( NS_USER ) . ':' . $block->getTarget(),
'',
array(
'lim' => 1,
'showIfEmpty' => false,
'msgKey' => array(
'blocked-notice-logextract',
$user->getName() # Support GENDER in notice
)
)
);
$validUserPage = !$title->isSubpage();
} else {
$validUserPage = !$title->isSubpage();
}
}
Hooks::run( 'ShowMissingArticle', array( $this ) );
// Give extensions a chance to hide their (unrelated) log entries
$logTypes = array( 'delete', 'move' );
$conds = array( "log_action != 'revision'" );
Hooks::run( 'Article::MissingArticleConditions', array( &$conds, $logTypes ) );
# Show delete and move logs
LogEventsList::showLogExtract( $outputPage, $logTypes, $title, '',
array( 'lim' => 10,
'conds' => $conds,
'showIfEmpty' => false,
'msgKey' => array( 'moveddeleted-notice' ) )
);
if ( !$this->mPage->hasViewableContent() && $wgSend404Code && !$validUserPage ) {
// If there's no backing content, send a 404 Not Found
// for better machine handling of broken links.
$this->getContext()->getRequest()->response()->header( "HTTP/1.1 404 Not Found" );
}
// Also apply the robot policy for nonexisting pages (even if a 404 was used for sanity)
$policy = $this->getRobotPolicy( 'view' );
$outputPage->setIndexPolicy( $policy['index'] );
$outputPage->setFollowPolicy( $policy['follow'] );
$hookResult = Hooks::run( 'BeforeDisplayNoArticleText', array( $this ) );
if ( !$hookResult ) {
return;
}
# Show error message
$oldid = $this->getOldID();
if ( $oldid ) {
$text = wfMessage( 'missing-revision', $oldid )->plain();
} elseif ( $title->getNamespace() === NS_MEDIAWIKI ) {
// Use the default message text
$text = $title->getDefaultMessageText();
} elseif ( $title->quickUserCan( 'create', $this->getContext()->getUser() )
&& $title->quickUserCan( 'edit', $this->getContext()->getUser() )
) {
$message = $this->getContext()->getUser()->isLoggedIn() ? 'noarticletext' : 'noarticletextanon';
$text = wfMessage( $message )->plain();
} else {
$text = wfMessage( 'noarticletext-nopermission' )->plain();
}
$text = "<div class='noarticletext'>\n$text\n</div>";
$outputPage->addWikiText( $text );
}
/**
* If the revision requested for view is deleted, check permissions.
* Send either an error message or a warning header to the output.
*
* @return bool True if the view is allowed, false if not.
*/
public function showDeletedRevisionHeader() {
if ( !$this->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
// Not deleted
return true;
}
$outputPage = $this->getContext()->getOutput();
$user = $this->getContext()->getUser();
// If the user is not allowed to see it...
if ( !$this->mRevision->userCan( Revision::DELETED_TEXT, $user ) ) {
$outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
'rev-deleted-text-permission' );
return false;
// If the user needs to confirm that they want to see it...
} elseif ( $this->getContext()->getRequest()->getInt( 'unhide' ) != 1 ) {
# Give explanation and add a link to view the revision...
$oldid = intval( $this->getOldID() );
$link = $this->getTitle()->getFullURL( "oldid={$oldid}&unhide=1" );
$msg = $this->mRevision->isDeleted( Revision::DELETED_RESTRICTED ) ?
'rev-suppressed-text-unhide' : 'rev-deleted-text-unhide';
$outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</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';
$outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n", $msg );
return 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 int $oldid Revision ID of this article revision
*/
public function setOldSubtitle( $oldid = 0 ) {
if ( !Hooks::run( 'DisplayOldSubtitle', array( &$this, &$oldid ) ) ) {
return;
}
$context = $this->getContext();
$unhide = $context->getRequest()->getInt( 'unhide' ) == 1;
# Cascade unhide param in links for easy deletion browsing
$extraParams = array();
if ( $unhide ) {
$extraParams['unhide'] = 1;
}
if ( $this->mRevision && $this->mRevision->getId() === $oldid ) {
$revision = $this->mRevision;
} else {
$revision = Revision::newFromId( $oldid );
}
$timestamp = $revision->getTimestamp();
$current = ( $oldid == $this->mPage->getLatest() );
$language = $context->getLanguage();
$user = $context->getUser();
$td = $language->userTimeAndDate( $timestamp, $user );
$tddate = $language->userDate( $timestamp, $user );
$tdtime = $language->userTime( $timestamp, $user );
# Show user links if allowed to see them. If hidden, then show them only if requested...
$userlinks = Linker::revUserTools( $revision, !$unhide );
$infomsg = $current && !$context->msg( 'revision-info-current' )->isDisabled()
? 'revision-info-current'
: 'revision-info';
$outputPage = $context->getOutput();
$outputPage->addSubtitle( "<div id=\"mw-{$infomsg}\">" .
$context->msg( $infomsg, $td )
->rawParams( $userlinks )
->params( $revision->getID(), $tddate, $tdtime, $revision->getUserText() )
->rawParams( Linker::revComment( $revision, true, true ) )
->parse() .
"</div>"
);
$lnk = $current
? $context->msg( 'currentrevisionlink' )->escaped()
: Linker::linkKnown(
$this->getTitle(),
$context->msg( 'currentrevisionlink' )->escaped(),
array(),
$extraParams
);
$curdiff = $current
? $context->msg( 'diff' )->escaped()
: Linker::linkKnown(
$this->getTitle(),
$context->msg( 'diff' )->escaped(),
array(),
array(
'diff' => 'cur',
'oldid' => $oldid
) + $extraParams
);
$prev = $this->getTitle()->getPreviousRevisionID( $oldid );
$prevlink = $prev
? Linker::linkKnown(
$this->getTitle(),
$context->msg( 'previousrevision' )->escaped(),
array(),
array(
'direction' => 'prev',
'oldid' => $oldid
) + $extraParams
)
: $context->msg( 'previousrevision' )->escaped();
$prevdiff = $prev
? Linker::linkKnown(
$this->getTitle(),
$context->msg( 'diff' )->escaped(),
array(),
array(
'diff' => 'prev',
'oldid' => $oldid
) + $extraParams
)
: $context->msg( 'diff' )->escaped();
$nextlink = $current
? $context->msg( 'nextrevision' )->escaped()
: Linker::linkKnown(
$this->getTitle(),
$context->msg( 'nextrevision' )->escaped(),
array(),
array(
'direction' => 'next',
'oldid' => $oldid
) + $extraParams
);
$nextdiff = $current
? $context->msg( 'diff' )->escaped()
: Linker::linkKnown(
$this->getTitle(),
$context->msg( 'diff' )->escaped(),
array(),
array(
'diff' => 'next',
'oldid' => $oldid
) + $extraParams
);
$cdel = Linker::getRevDeleteLink( $user, $revision, $this->getTitle() );
if ( $cdel !== '' ) {
$cdel .= ' ';
}
$outputPage->addSubtitle( "<div id=\"mw-revision-nav\">" . $cdel .
$context->msg( 'revision-nav' )->rawParams(
$prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff
)->escaped() . "</div>" );
}
/**
* Return the HTML for the top of a redirect page
*
* Chances are you should just be using the ParserOutput from
* WikitextContent::getParserOutput instead of calling this for redirects.
*
* @param Title|array $target Destination(s) to redirect
* @param bool $appendSubtitle [optional]
* @param bool $forceKnown Should the image be shown as a bluelink regardless of existence?
* @return string Containing HTML with redirect link
*/
public function viewRedirect( $target, $appendSubtitle = true, $forceKnown = false ) {
$lang = $this->getTitle()->getPageLanguage();
$out = $this->getContext()->getOutput();
if ( $appendSubtitle ) {
$out->addSubtitle( wfMessage( 'redirectpagesub' ) );
}
$out->addModuleStyles( 'mediawiki.action.view.redirectPage' );
return static::getRedirectHeaderHtml( $lang, $target, $forceKnown );
}
/**
* Return the HTML for the top of a redirect page
*
* Chances are you should just be using the ParserOutput from
* WikitextContent::getParserOutput instead of calling this for redirects.
*
* @since 1.23
* @param Language $lang
* @param Title|array $target Destination(s) to redirect
* @param bool $forceKnown Should the image be shown as a bluelink regardless of existence?
* @return string Containing HTML with redirect link
*/
public static function getRedirectHeaderHtml( Language $lang, $target, $forceKnown = false ) {
if ( !is_array( $target ) ) {
$target = array( $target );
}
$html = '<ul class="redirectText">';
/** @var Title $title */
foreach ( $target as $title ) {
$html .= '<li>' . Linker::link(
$title,
htmlspecialchars( $title->getFullText() ),
array(),
// Automatically append redirect=no to each link, since most of them are
// redirect pages themselves.
array( 'redirect' => 'no' ),
( $forceKnown ? array( 'known', 'noclasses' ) : array() )
) . '</li>';
}
$html .= '</ul>';
$redirectToText = wfMessage( 'redirectto' )->inLanguage( $lang )->escaped();
return '<div class="redirectMsg">' .
'<p>' . $redirectToText . '</p>' .
$html .
'</div>';
}
/**
* Adds help link with an icon via page indicators.
* Link target can be overridden by a local message containing a wikilink:
* the message key is: 'namespace-' + namespace number + '-helppage'.
* @param string $to Target MediaWiki.org page title or encoded URL.
* @param bool $overrideBaseUrl Whether $url is a full URL, to avoid MW.o.
* @since 1.25
*/
public function addHelpLink( $to, $overrideBaseUrl = false ) {
$msg = wfMessage(
'namespace-' . $this->getTitle()->getNamespace() . '-helppage'
);
$out = $this->getContext()->getOutput();
if ( !$msg->isDisabled() ) {
$helpUrl = Skin::makeUrl( $msg->plain() );
$out->addHelpLink( $helpUrl, true );
} else {
$out->addHelpLink( $to, $overrideBaseUrl );
}
}
/**
* Handle action=render
*/
public function render() {
$this->getContext()->getRequest()->response()->header( 'X-Robots-Tag: noindex' );
$this->getContext()->getOutput()->setArticleBodyOnly( true );
$this->getContext()->getOutput()->enableSectionEditLinks( false );
$this->view();
}
/**
* action=protect handler
*/
public function protect() {
$form = new ProtectionForm( $this );
$form->execute();
}
/**
* action=unprotect handler (alias)
*/
public function unprotect() {
$this->protect();
}
/**
* UI entry point for page deletion
*/
public function delete() {
# This code desperately needs to be totally rewritten
$title = $this->getTitle();
$context = $this->getContext();
$user = $context->getUser();
# Check permissions
$permissionErrors = $title->getUserPermissionsErrors( 'delete', $user );
if ( count( $permissionErrors ) ) {
throw new PermissionsError( 'delete', $permissionErrors );
}
# Read-only check...
if ( wfReadOnly() ) {
throw new ReadOnlyError;
}
# Better double-check that it hasn't been deleted yet!
$this->mPage->loadPageData( 'fromdbmaster' );
if ( !$this->mPage->exists() ) {
$deleteLogPage = new LogPage( 'delete' );
$outputPage = $context->getOutput();
$outputPage->setPageTitle( $context->msg( 'cannotdelete-title', $title->getPrefixedText() ) );
$outputPage->wrapWikiMsg( "<div class=\"error mw-error-cannotdelete\">\n$1\n</div>",
array( 'cannotdelete', wfEscapeWikiText( $title->getPrefixedText() ) )
);
$outputPage->addHTML(
Xml::element( 'h2', null, $deleteLogPage->getName()->text() )
);
LogEventsList::showLogExtract(
$outputPage,
'delete',
$title
);
return;
}
$request = $context->getRequest();
$deleteReasonList = $request->getText( 'wpDeleteReasonList', 'other' );
$deleteReason = $request->getText( 'wpReason' );
if ( $deleteReasonList == 'other' ) {
$reason = $deleteReason;
} elseif ( $deleteReason != '' ) {
// Entry from drop down menu + additional comment
$colonseparator = wfMessage( 'colon-separator' )->inContentLanguage()->text();
$reason = $deleteReasonList . $colonseparator . $deleteReason;
} else {
$reason = $deleteReasonList;
}
if ( $request->wasPosted() && $user->matchEditToken( $request->getVal( 'wpEditToken' ),
array( 'delete', $this->getTitle()->getPrefixedText() ) )
) {
# Flag to hide all contents of the archived revisions
$suppress = $request->getVal( 'wpSuppress' ) && $user->isAllowed( 'suppressrevision' );
$this->doDelete( $reason, $suppress );
WatchAction::doWatchOrUnwatch( $request->getCheck( 'wpWatch' ), $title, $user );
return;
}
// Generate deletion reason
$hasHistory = false;
if ( !$reason ) {
try {
$reason = $this->generateReason( $hasHistory );
} catch ( Exception $e ) {
# if a page is horribly broken, we still want to be able to
# delete it. So be lenient about errors here.
wfDebug( "Error while building auto delete summary: $e" );
$reason = '';
}
}
// If the page has a history, insert a warning
if ( $hasHistory ) {
$title = $this->getTitle();
// The following can use the real revision count as this is only being shown for users
// that can delete this page.
// This, as a side-effect, also makes sure that the following query isn't being run for
// pages with a larger history, unless the user has the 'bigdelete' right
// (and is about to delete this page).
$dbr = wfGetDB( DB_SLAVE );
$revisions = $edits = (int)$dbr->selectField(
'revision',
'COUNT(rev_page)',
array( 'rev_page' => $title->getArticleID() ),
__METHOD__
);
// @todo FIXME: i18n issue/patchwork message
$context->getOutput()->addHTML(
'<strong class="mw-delete-warning-revisions">' .
$context->msg( 'historywarning' )->numParams( $revisions )->parse() .
$context->msg( 'word-separator' )->escaped() . Linker::linkKnown( $title,
$context->msg( 'history' )->escaped(),
array(),
array( 'action' => 'history' ) ) .
'</strong>'
);
if ( $title->isBigDeletion() ) {
global $wgDeleteRevisionsLimit;
$context->getOutput()->wrapWikiMsg( "<div class='error'>\n$1\n</div>\n",
array(
'delete-warning-toobig',
$context->getLanguage()->formatNum( $wgDeleteRevisionsLimit )
)
);
}
}
$this->confirmDelete( $reason );
}
/**
* Output deletion confirmation dialog
* @todo FIXME: Move to another file?
* @param string $reason Prefilled reason
*/
public function confirmDelete( $reason ) {
wfDebug( "Article::confirmDelete\n" );
$title = $this->getTitle();
$ctx = $this->getContext();
$outputPage = $ctx->getOutput();
$useMediaWikiUIEverywhere = $ctx->getConfig()->get( 'UseMediaWikiUIEverywhere' );
$outputPage->setPageTitle( wfMessage( 'delete-confirm', $title->getPrefixedText() ) );
$outputPage->addBacklinkSubtitle( $title );
$outputPage->setRobotPolicy( 'noindex,nofollow' );
$backlinkCache = $title->getBacklinkCache();
if ( $backlinkCache->hasLinks( 'pagelinks' ) || $backlinkCache->hasLinks( 'templatelinks' ) ) {
$outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
'deleting-backlinks-warning' );
}
$outputPage->addWikiMsg( 'confirmdeletetext' );
Hooks::run( 'ArticleConfirmDelete', array( $this, $outputPage, &$reason ) );
$user = $this->getContext()->getUser();
if ( $user->isAllowed( 'suppressrevision' ) ) {
$suppress = Html::openElement( 'div', array( 'id' => 'wpDeleteSuppressRow' ) ) .
"<strong>" .
Xml::checkLabel( wfMessage( 'revdelete-suppress' )->text(),
'wpSuppress', 'wpSuppress', false, array( 'tabindex' => '4' ) ) .
"</strong>" .
Html::closeElement( 'div' );
} else {
$suppress = '';
}
$checkWatch = $user->getBoolOption( 'watchdeletion' ) || $user->isWatched( $title );
$form = Html::openElement( 'form', array( 'method' => 'post',
'action' => $title->getLocalURL( 'action=delete' ), 'id' => 'deleteconfirm' ) ) .
Html::openElement( 'fieldset', array( 'id' => 'mw-delete-table' ) ) .
Html::element( 'legend', null, wfMessage( 'delete-legend' )->text() ) .
Html::openElement( 'div', array( 'id' => 'mw-deleteconfirm-table' ) ) .
Html::openElement( 'div', array( 'id' => 'wpDeleteReasonListRow' ) ) .
Html::label( wfMessage( 'deletecomment' )->text(), 'wpDeleteReasonList' ) .
' ' .
Xml::listDropDown(
'wpDeleteReasonList',
wfMessage( 'deletereason-dropdown' )->inContentLanguage()->text(),
wfMessage( 'deletereasonotherlist' )->inContentLanguage()->text(),
'',
'wpReasonDropDown',
1
) .
Html::closeElement( 'div' ) .
Html::openElement( 'div', array( 'id' => 'wpDeleteReasonRow' ) ) .
Html::label( wfMessage( 'deleteotherreason' )->text(), 'wpReason' ) .
' ' .
Html::input( 'wpReason', $reason, 'text', array(
'size' => '60',
'maxlength' => '255',
'tabindex' => '2',
'id' => 'wpReason',
'class' => 'mw-ui-input-inline',
'autofocus'
) ) .
Html::closeElement( 'div' );
# Disallow watching if user is not logged in
if ( $user->isLoggedIn() ) {
$form .=
Xml::checkLabel( wfMessage( 'watchthis' )->text(),
'wpWatch', 'wpWatch', $checkWatch, array( 'tabindex' => '3' ) );
}
$form .=
Html::openElement( 'div' ) .
$suppress .
Xml::submitButton( wfMessage( 'deletepage' )->text(),
array(
'name' => 'wpConfirmB',
'id' => 'wpConfirmB',
'tabindex' => '5',
'class' => $useMediaWikiUIEverywhere ? 'mw-ui-button mw-ui-destructive' : '',
)
) .
Html::closeElement( 'div' ) .
Html::closeElement( 'div' ) .
Xml::closeElement( 'fieldset' ) .
Html::hidden(
'wpEditToken',
$user->getEditToken( array( 'delete', $title->getPrefixedText() ) )
) .
Xml::closeElement( 'form' );
if ( $user->isAllowed( 'editinterface' ) ) {
$dropdownTitle = Title::makeTitle( NS_MEDIAWIKI, 'Deletereason-dropdown' );
$link = Linker::link(
$dropdownTitle,
wfMessage( 'delete-edit-reasonlist' )->escaped(),
array(),
array( 'action' => 'edit' )
);
$form .= '<p class="mw-delete-editreasons">' . $link . '</p>';
}
$outputPage->addHTML( $form );
$deleteLogPage = new LogPage( 'delete' );
$outputPage->addHTML( Xml::element( 'h2', null, $deleteLogPage->getName()->text() ) );
LogEventsList::showLogExtract( $outputPage, 'delete', $title );
}
/**
* Perform a deletion and output success or failure messages
* @param string $reason
* @param bool $suppress
*/
public function doDelete( $reason, $suppress = false ) {
$error = '';
$outputPage = $this->getContext()->getOutput();
$status = $this->mPage->doDeleteArticleReal( $reason, $suppress, 0, true, $error );
if ( $status->isGood() ) {
$deleted = $this->getTitle()->getPrefixedText();
$outputPage->setPageTitle( wfMessage( 'actioncomplete' ) );
$outputPage->setRobotPolicy( 'noindex,nofollow' );
$loglink = '[[Special:Log/delete|' . wfMessage( 'deletionlog' )->text() . ']]';
$outputPage->addWikiMsg( 'deletedtext', wfEscapeWikiText( $deleted ), $loglink );
Hooks::run( 'ArticleDeleteAfterSuccess', array( $this->getTitle(), $outputPage ) );
$outputPage->returnToMain( false );
} else {
$outputPage->setPageTitle(
wfMessage( 'cannotdelete-title',
$this->getTitle()->getPrefixedText() )
);
if ( $error == '' ) {
$outputPage->addWikiText(
"<div class=\"error mw-error-cannotdelete\">\n" . $status->getWikiText() . "\n</div>"
);
$deleteLogPage = new LogPage( 'delete' );
$outputPage->addHTML( Xml::element( 'h2', null, $deleteLogPage->getName()->text() ) );
LogEventsList::showLogExtract(
$outputPage,
'delete',
$this->getTitle()
);
} else {
$outputPage->addHTML( $error );
}
}
}
/* 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)
*
* @return bool True if cached version send, false otherwise
*/
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->getTitle(), 'view' );
if ( $cache->isCacheGood( $this->mPage->getTouched() ) ) {
wfDebug( "Article::tryFileCache(): about to load file\n" );
$cache->loadFromFileCache( $this->getContext() );
return true;
} else {
wfDebug( "Article::tryFileCache(): starting buffer\n" );
ob_start( array( &$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( $this->getContext() ) ) {
$cacheable = $this->mPage->getID()
&& !$this->mRedirectedFrom && !$this->getTitle()->isRedirect();
// Extension may have reason to disable file caching on some pages.
if ( $cacheable ) {
$cacheable = Hooks::run( 'IsFileCacheable', array( &$this ) );
}
}
return $cacheable;
}
/**#@-*/
/**
* 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 WikiPage::view is forced to
* consider, so it's not appropriate to use there.
*
* @since 1.16 (r52326) for LiquidThreads
*
* @param int|null $oldid Revision ID or null
* @param User $user The relevant user
* @return ParserOutput|bool ParserOutput or false if the given revision ID is not found
*/
public function getParserOutput( $oldid = null, User $user = null ) {
//XXX: bypasses mParserOptions and thus setParserOptions()
if ( $user === null ) {
$parserOptions = $this->getParserOptions();
} else {
$parserOptions = $this->mPage->makeParserOptions( $user );
}
return $this->mPage->getParserOutput( $parserOptions, $oldid );
}
/**
* Override the ParserOptions used to render the primary article wikitext.
*
* @param ParserOptions $options
* @throws MWException If the parser options where already initialized.
*/
public function setParserOptions( ParserOptions $options ) {
if ( $this->mParserOptions ) {
throw new MWException( "can't change parser options after they have already been set" );
}
// clone, so if $options is modified later, it doesn't confuse the parser cache.
$this->mParserOptions = clone $options;
}
/**
* Get parser options suitable for rendering the primary article wikitext
* @return ParserOptions
*/
public function getParserOptions() {
if ( !$this->mParserOptions ) {
$this->mParserOptions = $this->mPage->makeParserOptions( $this->getContext() );
}
// Clone to allow modifications of the return value without affecting cache
return clone $this->mParserOptions;
}
/**
* Sets the context this Article is executed in
*
* @param IContextSource $context
* @since 1.18
*/
public function setContext( $context ) {
$this->mContext = $context;
}
/**
* Gets the context this Article is executed in
*
* @return IContextSource
* @since 1.18
*/
public function getContext() {
if ( $this->mContext instanceof IContextSource ) {
return $this->mContext;
} else {
wfDebug( __METHOD__ . " called and \$mContext is null. " .
"Return RequestContext::getMain(); for sanity\n" );
return RequestContext::getMain();
}
}
/**
* Use PHP's magic __get handler to handle accessing of
* raw WikiPage fields for backwards compatibility.
*
* @param string $fname Field name
* @return mixed
*/
public function __get( $fname ) {
if ( property_exists( $this->mPage, $fname ) ) {
#wfWarn( "Access to raw $fname field " . __CLASS__ );
return $this->mPage->$fname;
}
trigger_error( 'Inaccessible property via __get(): ' . $fname, E_USER_NOTICE );
}
/**
* Use PHP's magic __set handler to handle setting of
* raw WikiPage fields for backwards compatibility.
*
* @param string $fname Field name
* @param mixed $fvalue New value
*/
public function __set( $fname, $fvalue ) {
if ( property_exists( $this->mPage, $fname ) ) {
#wfWarn( "Access to raw $fname field of " . __CLASS__ );
$this->mPage->$fname = $fvalue;
// Note: extensions may want to toss on new fields
} elseif ( !in_array( $fname, array( 'mContext', 'mPage' ) ) ) {
$this->mPage->$fname = $fvalue;
} else {
trigger_error( 'Inaccessible property via __set(): ' . $fname, E_USER_NOTICE );
}
}
/**
* Use PHP's magic __call handler to transform instance calls to
* WikiPage functions for backwards compatibility.
*
* @param string $fname Name of called method
* @param array $args Arguments to the method
* @return mixed
*/
public function __call( $fname, $args ) {
if ( is_callable( array( $this->mPage, $fname ) ) ) {
#wfWarn( "Call to " . __CLASS__ . "::$fname; please use WikiPage instead" );
return call_user_func_array( array( $this->mPage, $fname ), $args );
}
trigger_error( 'Inaccessible function via __call(): ' . $fname, E_USER_ERROR );
}
// ****** B/C functions to work-around PHP silliness with __call and references ****** //
/**
* @param array $limit
* @param array $expiry
* @param bool $cascade
* @param string $reason
* @param User $user
* @return Status
*/
public function doUpdateRestrictions( array $limit, array $expiry, &$cascade,
$reason, User $user
) {
return $this->mPage->doUpdateRestrictions( $limit, $expiry, $cascade, $reason, $user );
}
/**
* @param array $limit
* @param string $reason
* @param int $cascade
* @param array $expiry
* @return bool
*/
public function updateRestrictions( $limit = array(), $reason = '',
&$cascade = 0, $expiry = array()
) {
return $this->mPage->doUpdateRestrictions(
$limit,
$expiry,
$cascade,
$reason,
$this->getContext()->getUser()
);
}
/**
* @param string $reason
* @param bool $suppress
* @param int $id
* @param bool $commit
* @param string $error
* @return bool
*/
public function doDeleteArticle( $reason, $suppress = false, $id = 0,
$commit = true, &$error = ''
) {
return $this->mPage->doDeleteArticle( $reason, $suppress, $id, $commit, $error );
}
/**
* @param string $fromP
* @param string $summary
* @param string $token
* @param bool $bot
* @param array $resultDetails
* @param User|null $user
* @return array
*/
public function doRollback( $fromP, $summary, $token, $bot, &$resultDetails, User $user = null ) {
$user = is_null( $user ) ? $this->getContext()->getUser() : $user;
return $this->mPage->doRollback( $fromP, $summary, $token, $bot, $resultDetails, $user );
}
/**
* @param string $fromP
* @param string $summary
* @param bool $bot
* @param array $resultDetails
* @param User|null $guser
* @return array
*/
public function commitRollback( $fromP, $summary, $bot, &$resultDetails, User $guser = null ) {
$guser = is_null( $guser ) ? $this->getContext()->getUser() : $guser;
return $this->mPage->commitRollback( $fromP, $summary, $bot, $resultDetails, $guser );
}
/**
* @param bool $hasHistory
* @return mixed
*/
public function generateReason( &$hasHistory ) {
$title = $this->mPage->getTitle();
$handler = ContentHandler::getForTitle( $title );
return $handler->getAutoDeleteReason( $title, $hasHistory );
}
// ****** B/C functions for static methods ( __callStatic is PHP>=5.3 ) ****** //
/**
* @return array
*
* @deprecated since 1.24, use WikiPage::selectFields() instead
*/
public static function selectFields() {
wfDeprecated( __METHOD__, '1.24' );
return WikiPage::selectFields();
}
/**
* @param Title $title
*
* @deprecated since 1.24, use WikiPage::onArticleCreate() instead
*/
public static function onArticleCreate( $title ) {
wfDeprecated( __METHOD__, '1.24' );
WikiPage::onArticleCreate( $title );
}
/**
* @param Title $title
*
* @deprecated since 1.24, use WikiPage::onArticleDelete() instead
*/
public static function onArticleDelete( $title ) {
wfDeprecated( __METHOD__, '1.24' );
WikiPage::onArticleDelete( $title );
}
/**
* @param Title $title
*
* @deprecated since 1.24, use WikiPage::onArticleEdit() instead
*/
public static function onArticleEdit( $title ) {
wfDeprecated( __METHOD__, '1.24' );
WikiPage::onArticleEdit( $title );
}
/**
* @param string $oldtext
* @param string $newtext
* @param int $flags
* @return string
* @deprecated since 1.21, use ContentHandler::getAutosummary() instead
*/
public static function getAutosummary( $oldtext, $newtext, $flags ) {
return WikiPage::getAutosummary( $oldtext, $newtext, $flags );
}
// ******
}
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