3 * User interface for page actions.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
24 * Class for viewing MediaWiki article and history.
26 * This maintains WikiPage functions for backwards compatibility.
28 * @todo Move and rewrite code to an Action class
30 * See design.txt for an overview.
31 * Note: edit user interface and cache support functions have been
32 * moved to separate EditPage and HTMLFileCache classes.
34 * @internal documentation reviewed 15 Mar 2010
36 class Article
implements Page
{
42 * The context this Article is executed in
43 * @var IContextSource $mContext
48 * The WikiPage object of this instance
49 * @var WikiPage $mPage
54 * ParserOptions object for $wgUser articles
55 * @var ParserOptions $mParserOptions
57 public $mParserOptions;
60 * Text of the revision we are working on
61 * @var string $mContent
63 var $mContent; // !< #BC cruft
66 * Content of the revision we are working on
70 var $mContentObject; // !<
73 * Is the content ($mContent) already loaded?
74 * @var bool $mContentLoaded
76 var $mContentLoaded = false; // !<
79 * The oldid of the article that is to be shown, 0 for the
81 * @var int|null $mOldId
86 * Title from which we were redirected here
87 * @var Title $mRedirectedFrom
89 var $mRedirectedFrom = null;
92 * URL to redirect to or false if none
93 * @var string|false $mRedirectUrl
95 var $mRedirectUrl = false; // !<
98 * Revision ID of revision we are working on
99 * @var int $mRevIdFetched
101 var $mRevIdFetched = 0; // !<
104 * Revision we are working on
105 * @var Revision $mRevision
107 var $mRevision = null;
110 * ParserOutput object
111 * @var ParserOutput $mParserOutput
118 * Constructor and clear the article
119 * @param $title Title Reference to a Title object.
120 * @param $oldId Integer revision ID, null to fetch from request, zero for current
122 public function __construct( Title
$title, $oldId = null ) {
123 $this->mOldId
= $oldId;
124 $this->mPage
= $this->newPage( $title );
128 * @param $title Title
131 protected function newPage( Title
$title ) {
132 return new WikiPage( $title );
136 * Constructor from a page id
137 * @param int $id article ID to load
138 * @return Article|null
140 public static function newFromID( $id ) {
141 $t = Title
::newFromID( $id );
142 # @todo FIXME: Doesn't inherit right
143 return $t == null ?
null : new self( $t );
144 # return $t == null ? null : new static( $t ); // PHP 5.3
148 * Create an Article object of the appropriate class for the given page.
150 * @param $title Title
151 * @param $context IContextSource
152 * @return Article object
154 public static function newFromTitle( $title, IContextSource
$context ) {
155 if ( NS_MEDIA
== $title->getNamespace() ) {
156 // FIXME: where should this go?
157 $title = Title
::makeTitle( NS_FILE
, $title->getDBkey() );
161 wfRunHooks( 'ArticleFromTitle', array( &$title, &$page ) );
163 switch ( $title->getNamespace() ) {
165 $page = new ImagePage( $title );
168 $page = new CategoryPage( $title );
171 $page = new Article( $title );
174 $page->setContext( $context );
180 * Create an Article object of the appropriate class for the given page.
182 * @param $page WikiPage
183 * @param $context IContextSource
184 * @return Article object
186 public static function newFromWikiPage( WikiPage
$page, IContextSource
$context ) {
187 $article = self
::newFromTitle( $page->getTitle(), $context );
188 $article->mPage
= $page; // override to keep process cached vars
193 * Tell the page view functions that this view was redirected
194 * from another page on the wiki.
195 * @param $from Title object.
197 public function setRedirectedFrom( Title
$from ) {
198 $this->mRedirectedFrom
= $from;
202 * Get the title object of the article
204 * @return Title object of this page
206 public function getTitle() {
207 return $this->mPage
->getTitle();
211 * Get the WikiPage object of this instance
216 public function getPage() {
223 public function clear() {
224 $this->mContentLoaded
= false;
226 $this->mRedirectedFrom
= null; # Title object if set
227 $this->mRevIdFetched
= 0;
228 $this->mRedirectUrl
= false;
230 $this->mPage
->clear();
234 * Note that getContent/loadContent do not follow redirects anymore.
235 * If you need to fetch redirectable content easily, try
236 * the shortcut in WikiPage::getRedirectTarget()
238 * This function has side effects! Do not use this function if you
239 * only want the real revision text if any.
241 * @deprecated in 1.21; use WikiPage::getContent() instead
243 * @return string Return the text of this revision
245 public function getContent() {
246 ContentHandler
::deprecated( __METHOD__
, '1.21' );
247 $content = $this->getContentObject();
248 return ContentHandler
::getContentText( $content );
252 * Returns a Content object representing the pages effective display content,
253 * not necessarily the revision's content!
255 * Note that getContent/loadContent do not follow redirects anymore.
256 * If you need to fetch redirectable content easily, try
257 * the shortcut in WikiPage::getRedirectTarget()
259 * This function has side effects! Do not use this function if you
260 * only want the real revision text if any.
262 * @return Content Return the content of this revision
266 protected function getContentObject() {
267 wfProfileIn( __METHOD__
);
269 if ( $this->mPage
->getID() === 0 ) {
270 # If this is a MediaWiki:x message, then load the messages
271 # and return the message value for x.
272 if ( $this->getTitle()->getNamespace() == NS_MEDIAWIKI
) {
273 $text = $this->getTitle()->getDefaultMessageText();
274 if ( $text === false ) {
278 $content = ContentHandler
::makeContent( $text, $this->getTitle() );
280 $message = $this->getContext()->getUser()->isLoggedIn() ?
'noarticletext' : 'noarticletextanon';
281 $content = new MessageContent( $message, null, 'parsemag' );
284 $this->fetchContentObject();
285 $content = $this->mContentObject
;
288 wfProfileOut( __METHOD__
);
293 * @return int The oldid of the article that is to be shown, 0 for the
296 public function getOldID() {
297 if ( is_null( $this->mOldId
) ) {
298 $this->mOldId
= $this->getOldIDFromRequest();
301 return $this->mOldId
;
305 * Sets $this->mRedirectUrl to a correct URL if the query parameters are incorrect
307 * @return int The old id for the request
309 public function getOldIDFromRequest() {
310 $this->mRedirectUrl
= false;
312 $request = $this->getContext()->getRequest();
313 $oldid = $request->getIntOrNull( 'oldid' );
315 if ( $oldid === null ) {
319 if ( $oldid !== 0 ) {
320 # Load the given revision and check whether the page is another one.
321 # In that case, update this instance to reflect the change.
322 if ( $oldid === $this->mPage
->getLatest() ) {
323 $this->mRevision
= $this->mPage
->getRevision();
325 $this->mRevision
= Revision
::newFromId( $oldid );
326 if ( $this->mRevision
!== null ) {
327 // Revision title doesn't match the page title given?
328 if ( $this->mPage
->getID() != $this->mRevision
->getPage() ) {
329 $function = array( get_class( $this->mPage
), 'newFromID' );
330 $this->mPage
= call_user_func( $function, $this->mRevision
->getPage() );
336 if ( $request->getVal( 'direction' ) == 'next' ) {
337 $nextid = $this->getTitle()->getNextRevisionID( $oldid );
340 $this->mRevision
= null;
342 $this->mRedirectUrl
= $this->getTitle()->getFullURL( 'redirect=no' );
344 } elseif ( $request->getVal( 'direction' ) == 'prev' ) {
345 $previd = $this->getTitle()->getPreviousRevisionID( $oldid );
348 $this->mRevision
= null;
356 * Load the revision (including text) into this object
358 * @deprecated in 1.19; use fetchContent()
360 function loadContent() {
361 wfDeprecated( __METHOD__
, '1.19' );
362 $this->fetchContent();
366 * Get text of an article from database
367 * Does *NOT* follow redirects.
370 * @note this is really internal functionality that should really NOT be used by other functions. For accessing
371 * article content, use the WikiPage class, especially WikiBase::getContent(). However, a lot of legacy code
372 * uses this method to retrieve page text from the database, so the function has to remain public for now.
374 * @return mixed string containing article contents, or false if null
375 * @deprecated in 1.21, use WikiPage::getContent() instead
377 function fetchContent() { #BC cruft!
378 ContentHandler
::deprecated( __METHOD__
, '1.21' );
380 if ( $this->mContentLoaded
&& $this->mContent
) {
381 return $this->mContent
;
384 wfProfileIn( __METHOD__
);
386 $content = $this->fetchContentObject();
388 // @todo Get rid of mContent everywhere!
389 $this->mContent
= ContentHandler
::getContentText( $content );
390 ContentHandler
::runLegacyHooks( 'ArticleAfterFetchContent', array( &$this, &$this->mContent
) );
392 wfProfileOut( __METHOD__
);
394 return $this->mContent
;
398 * Get text content object
399 * Does *NOT* follow redirects.
400 * TODO: when is this null?
402 * @note code that wants to retrieve page content from the database should use WikiPage::getContent().
404 * @return Content|null|boolean false
408 protected function fetchContentObject() {
409 if ( $this->mContentLoaded
) {
410 return $this->mContentObject
;
413 wfProfileIn( __METHOD__
);
415 $this->mContentLoaded
= true;
416 $this->mContent
= null;
418 $oldid = $this->getOldID();
420 # Pre-fill content with error message so that if something
421 # fails we'll have something telling us what we intended.
422 //XXX: this isn't page content but a UI message. horrible.
423 $this->mContentObject
= new MessageContent( 'missing-revision', array( $oldid ), array() );
426 # $this->mRevision might already be fetched by getOldIDFromRequest()
427 if ( !$this->mRevision
) {
428 $this->mRevision
= Revision
::newFromId( $oldid );
429 if ( !$this->mRevision
) {
430 wfDebug( __METHOD__
. " failed to retrieve specified revision, id $oldid\n" );
431 wfProfileOut( __METHOD__
);
436 if ( !$this->mPage
->getLatest() ) {
437 wfDebug( __METHOD__
. " failed to find page data for title " . $this->getTitle()->getPrefixedText() . "\n" );
438 wfProfileOut( __METHOD__
);
442 $this->mRevision
= $this->mPage
->getRevision();
444 if ( !$this->mRevision
) {
445 wfDebug( __METHOD__
. " failed to retrieve current page, rev_id " . $this->mPage
->getLatest() . "\n" );
446 wfProfileOut( __METHOD__
);
451 // @todo FIXME: Horrible, horrible! This content-loading interface just plain sucks.
452 // We should instead work with the Revision object when we need it...
453 $this->mContentObject
= $this->mRevision
->getContent( Revision
::FOR_THIS_USER
, $this->getContext()->getUser() ); // Loads if user is allowed
454 $this->mRevIdFetched
= $this->mRevision
->getId();
456 wfRunHooks( 'ArticleAfterFetchContentObject', array( &$this, &$this->mContentObject
) );
458 wfProfileOut( __METHOD__
);
460 return $this->mContentObject
;
465 * @deprecated since 1.18
467 public function forUpdate() {
468 wfDeprecated( __METHOD__
, '1.18' );
472 * Returns true if the currently-referenced revision is the current edit
473 * to this page (and it exists).
476 public function isCurrent() {
477 # If no oldid, this is the current version.
478 if ( $this->getOldID() == 0 ) {
482 return $this->mPage
->exists() && $this->mRevision
&& $this->mRevision
->isCurrent();
486 * Get the fetched Revision object depending on request parameters or null
490 * @return Revision|null
492 public function getRevisionFetched() {
493 $this->fetchContentObject();
495 return $this->mRevision
;
499 * Use this to fetch the rev ID used on page views
501 * @return int revision ID of last article revision
503 public function getRevIdFetched() {
504 if ( $this->mRevIdFetched
) {
505 return $this->mRevIdFetched
;
507 return $this->mPage
->getLatest();
512 * This is the default action of the index.php entry point: just view the
513 * page of the given title.
515 public function view() {
516 global $wgUseFileCache, $wgUseETag, $wgDebugToolbar;
518 wfProfileIn( __METHOD__
);
520 # Get variables from query string
521 # As side effect this will load the revision and update the title
522 # in a revision ID is passed in the request, so this should remain
523 # the first call of this method even if $oldid is used way below.
524 $oldid = $this->getOldID();
526 $user = $this->getContext()->getUser();
527 # Another whitelist check in case getOldID() is altering the title
528 $permErrors = $this->getTitle()->getUserPermissionsErrors( 'read', $user );
529 if ( count( $permErrors ) ) {
530 wfDebug( __METHOD__
. ": denied on secondary read check\n" );
531 wfProfileOut( __METHOD__
);
532 throw new PermissionsError( 'read', $permErrors );
535 $outputPage = $this->getContext()->getOutput();
536 # getOldID() may as well want us to redirect somewhere else
537 if ( $this->mRedirectUrl
) {
538 $outputPage->redirect( $this->mRedirectUrl
);
539 wfDebug( __METHOD__
. ": redirecting due to oldid\n" );
540 wfProfileOut( __METHOD__
);
545 # If we got diff in the query, we want to see a diff page instead of the article.
546 if ( $this->getContext()->getRequest()->getCheck( 'diff' ) ) {
547 wfDebug( __METHOD__
. ": showing diff page\n" );
548 $this->showDiffPage();
549 wfProfileOut( __METHOD__
);
554 # Set page title (may be overridden by DISPLAYTITLE)
555 $outputPage->setPageTitle( $this->getTitle()->getPrefixedText() );
557 $outputPage->setArticleFlag( true );
558 # Allow frames by default
559 $outputPage->allowClickjacking();
561 $parserCache = ParserCache
::singleton();
563 $parserOptions = $this->getParserOptions();
564 # Render printable version, use printable version cache
565 if ( $outputPage->isPrintable() ) {
566 $parserOptions->setIsPrintable( true );
567 $parserOptions->setEditSection( false );
568 } elseif ( !$this->isCurrent() ||
!$this->getTitle()->quickUserCan( 'edit', $user ) ) {
569 $parserOptions->setEditSection( false );
572 # Try client and file cache
573 if ( !$wgDebugToolbar && $oldid === 0 && $this->mPage
->checkTouched() ) {
575 $outputPage->setETag( $parserCache->getETag( $this, $parserOptions ) );
578 # Is it client cached?
579 if ( $outputPage->checkLastModified( $this->mPage
->getTouched() ) ) {
580 wfDebug( __METHOD__
. ": done 304\n" );
581 wfProfileOut( __METHOD__
);
585 } elseif ( $wgUseFileCache && $this->tryFileCache() ) {
586 wfDebug( __METHOD__
. ": done file cache\n" );
587 # tell wgOut that output is taken care of
588 $outputPage->disable();
589 $this->mPage
->doViewUpdates( $user, $oldid );
590 wfProfileOut( __METHOD__
);
596 # Should the parser cache be used?
597 $useParserCache = $this->mPage
->isParserCacheUsed( $parserOptions, $oldid );
598 wfDebug( 'Article::view using parser cache: ' . ( $useParserCache ?
'yes' : 'no' ) . "\n" );
599 if ( $user->getStubThreshold() ) {
600 wfIncrStats( 'pcache_miss_stub' );
603 $this->showRedirectedFromHeader();
604 $this->showNamespaceHeader();
606 # Iterate through the possible ways of constructing the output text.
607 # Keep going until $outputDone is set, or we run out of things to do.
610 $this->mParserOutput
= false;
612 while ( !$outputDone && ++
$pass ) {
615 wfRunHooks( 'ArticleViewHeader', array( &$this, &$outputDone, &$useParserCache ) );
618 # Early abort if the page doesn't exist
619 if ( !$this->mPage
->exists() ) {
620 wfDebug( __METHOD__
. ": showing missing article\n" );
621 $this->showMissingArticle();
622 wfProfileOut( __METHOD__
);
626 # Try the parser cache
627 if ( $useParserCache ) {
628 $this->mParserOutput
= $parserCache->get( $this, $parserOptions );
630 if ( $this->mParserOutput
!== false ) {
632 wfDebug( __METHOD__
. ": showing parser cache contents for current rev permalink\n" );
633 $this->setOldSubtitle( $oldid );
635 wfDebug( __METHOD__
. ": showing parser cache contents\n" );
637 $outputPage->addParserOutput( $this->mParserOutput
);
638 # Ensure that UI elements requiring revision ID have
639 # the correct version information.
640 $outputPage->setRevisionId( $this->mPage
->getLatest() );
641 # Preload timestamp to avoid a DB hit
642 $cachedTimestamp = $this->mParserOutput
->getTimestamp();
643 if ( $cachedTimestamp !== null ) {
644 $outputPage->setRevisionTimestamp( $cachedTimestamp );
645 $this->mPage
->setTimestamp( $cachedTimestamp );
652 # This will set $this->mRevision if needed
653 $this->fetchContentObject();
655 # Are we looking at an old revision
656 if ( $oldid && $this->mRevision
) {
657 $this->setOldSubtitle( $oldid );
659 if ( !$this->showDeletedRevisionHeader() ) {
660 wfDebug( __METHOD__
. ": cannot view deleted revision\n" );
661 wfProfileOut( __METHOD__
);
666 # Ensure that UI elements requiring revision ID have
667 # the correct version information.
668 $outputPage->setRevisionId( $this->getRevIdFetched() );
669 # Preload timestamp to avoid a DB hit
670 $outputPage->setRevisionTimestamp( $this->getTimestamp() );
672 # Pages containing custom CSS or JavaScript get special treatment
673 if ( $this->getTitle()->isCssOrJsPage() ||
$this->getTitle()->isCssJsSubpage() ) {
674 wfDebug( __METHOD__
. ": showing CSS/JS source\n" );
675 $this->showCssOrJsPage();
677 } elseif ( !wfRunHooks( 'ArticleContentViewCustom',
678 array( $this->fetchContentObject(), $this->getTitle(), $outputPage ) ) ) {
680 # Allow extensions do their own custom view for certain pages
682 } elseif ( !ContentHandler
::runLegacyHooks( 'ArticleViewCustom',
683 array( $this->fetchContentObject(), $this->getTitle(), $outputPage ) ) ) {
685 # Allow extensions do their own custom view for certain pages
688 $content = $this->getContentObject();
689 $rt = $content ?
$content->getRedirectChain() : null;
691 wfDebug( __METHOD__
. ": showing redirect=no page\n" );
692 # Viewing a redirect page (e.g. with parameter redirect=no)
693 $outputPage->addHTML( $this->viewRedirect( $rt ) );
694 # Parse just to get categories, displaytitle, etc.
695 $this->mParserOutput
= $content->getParserOutput( $this->getTitle(), $oldid, $parserOptions, false );
696 $outputPage->addParserOutputNoText( $this->mParserOutput
);
702 # Run the parse, protected by a pool counter
703 wfDebug( __METHOD__
. ": doing uncached parse\n" );
705 $poolArticleView = new PoolWorkArticleView( $this->getPage(), $parserOptions,
706 $this->getRevIdFetched(), $useParserCache, $this->getContentObject() );
708 if ( !$poolArticleView->execute() ) {
709 $error = $poolArticleView->getError();
711 $outputPage->clearHTML(); // for release() errors
712 $outputPage->enableClientCache( false );
713 $outputPage->setRobotPolicy( 'noindex,nofollow' );
715 $errortext = $error->getWikiText( false, 'view-pool-error' );
716 $outputPage->addWikiText( '<div class="errorbox">' . $errortext . '</div>' );
718 # Connection or timeout error
719 wfProfileOut( __METHOD__
);
723 $this->mParserOutput
= $poolArticleView->getParserOutput();
724 $outputPage->addParserOutput( $this->mParserOutput
);
726 # Don't cache a dirty ParserOutput object
727 if ( $poolArticleView->getIsDirty() ) {
728 $outputPage->setSquidMaxage( 0 );
729 $outputPage->addHTML( "<!-- parser cache is expired, sending anyway due to pool overload-->\n" );
734 # Should be unreachable, but just in case...
740 # Get the ParserOutput actually *displayed* here.
741 # Note that $this->mParserOutput is the *current* version output.
742 $pOutput = ( $outputDone instanceof ParserOutput
)
743 ?
$outputDone // object fetched by hook
744 : $this->mParserOutput
;
746 # Adjust title for main page & pages with displaytitle
748 $this->adjustDisplayTitle( $pOutput );
751 # For the main page, overwrite the <title> element with the con-
752 # tents of 'pagetitle-view-mainpage' instead of the default (if
754 # This message always exists because it is in the i18n files
755 if ( $this->getTitle()->isMainPage() ) {
756 $msg = wfMessage( 'pagetitle-view-mainpage' )->inContentLanguage();
757 if ( !$msg->isDisabled() ) {
758 $outputPage->setHTMLTitle( $msg->title( $this->getTitle() )->text() );
762 # Check for any __NOINDEX__ tags on the page using $pOutput
763 $policy = $this->getRobotPolicy( 'view', $pOutput );
764 $outputPage->setIndexPolicy( $policy['index'] );
765 $outputPage->setFollowPolicy( $policy['follow'] );
767 $this->showViewFooter();
768 $this->mPage
->doViewUpdates( $user, $oldid );
770 $outputPage->addModules( 'mediawiki.action.view.postEdit' );
772 wfProfileOut( __METHOD__
);
776 * Adjust title for pages with displaytitle, -{T|}- or language conversion
777 * @param $pOutput ParserOutput
779 public function adjustDisplayTitle( ParserOutput
$pOutput ) {
780 # Adjust the title if it was set by displaytitle, -{T|}- or language conversion
781 $titleText = $pOutput->getTitleText();
782 if ( strval( $titleText ) !== '' ) {
783 $this->getContext()->getOutput()->setPageTitle( $titleText );
788 * Show a diff page according to current request variables. For use within
789 * Article::view() only, other callers should use the DifferenceEngine class.
791 * @todo Make protected
793 public function showDiffPage() {
794 $request = $this->getContext()->getRequest();
795 $user = $this->getContext()->getUser();
796 $diff = $request->getVal( 'diff' );
797 $rcid = $request->getVal( 'rcid' );
798 $diffOnly = $request->getBool( 'diffonly', $user->getOption( 'diffonly' ) );
799 $purge = $request->getVal( 'action' ) == 'purge';
800 $unhide = $request->getInt( 'unhide' ) == 1;
801 $oldid = $this->getOldID();
803 $rev = $this->getRevisionFetched();
806 $this->getContext()->getOutput()->setPageTitle( wfMessage( 'errorpagetitle' ) );
807 $this->getContext()->getOutput()->addWikiMsg( 'difference-missing-revision', $oldid, 1 );
811 $contentHandler = $rev->getContentHandler();
812 $de = $contentHandler->createDifferenceEngine( $this->getContext(), $oldid, $diff, $rcid, $purge, $unhide );
814 // DifferenceEngine directly fetched the revision:
815 $this->mRevIdFetched
= $de->getNewid();
816 $de->showDiffPage( $diffOnly );
818 // Run view updates for the newer revision being diffed (and shown below the diff if not $diffOnly)
819 list( $old, $new ) = $de->mapDiffPrevNext( $oldid, $diff );
820 // New can be false, convert it to 0 - this conveniently means the latest revision
821 $this->mPage
->doViewUpdates( $user, (int)$new );
825 * Show a page view for a page formatted as CSS or JavaScript. To be called by
826 * Article::view() only.
828 * This is hooked by SyntaxHighlight_GeSHi to do syntax highlighting of these
831 * @param bool $showCacheHint whether to show a message telling the user to clear the browser cache (default: true).
833 protected function showCssOrJsPage( $showCacheHint = true ) {
834 $outputPage = $this->getContext()->getOutput();
836 if ( $showCacheHint ) {
837 $dir = $this->getContext()->getLanguage()->getDir();
838 $lang = $this->getContext()->getLanguage()->getCode();
840 $outputPage->wrapWikiMsg( "<div id='mw-clearyourcache' lang='$lang' dir='$dir' class='mw-content-$dir'>\n$1\n</div>",
844 $this->fetchContentObject();
846 if ( $this->mContentObject
) {
847 // Give hooks a chance to customise the output
848 if ( ContentHandler
::runLegacyHooks( 'ShowRawCssJs', array( $this->mContentObject
, $this->getTitle(), $outputPage ) ) ) {
849 $po = $this->mContentObject
->getParserOutput( $this->getTitle() );
850 $outputPage->addHTML( $po->getText() );
856 * Get the robot policy to be used for the current view
857 * @param string $action the action= GET parameter
858 * @param $pOutput ParserOutput|null
859 * @return Array the policy that should be set
860 * TODO: actions other than 'view'
862 public function getRobotPolicy( $action, $pOutput = null ) {
863 global $wgArticleRobotPolicies, $wgNamespaceRobotPolicies, $wgDefaultRobotPolicy;
865 $ns = $this->getTitle()->getNamespace();
867 # Don't index user and user talk pages for blocked users (bug 11443)
868 if ( ( $ns == NS_USER ||
$ns == NS_USER_TALK
) && !$this->getTitle()->isSubpage() ) {
869 $specificTarget = null;
871 $titleText = $this->getTitle()->getText();
872 if ( IP
::isValid( $titleText ) ) {
873 $vagueTarget = $titleText;
875 $specificTarget = $titleText;
877 if ( Block
::newFromTarget( $specificTarget, $vagueTarget ) instanceof Block
) {
879 'index' => 'noindex',
880 'follow' => 'nofollow'
885 if ( $this->mPage
->getID() === 0 ||
$this->getOldID() ) {
886 # Non-articles (special pages etc), and old revisions
888 'index' => 'noindex',
889 'follow' => 'nofollow'
891 } elseif ( $this->getContext()->getOutput()->isPrintable() ) {
892 # Discourage indexing of printable versions, but encourage following
894 'index' => 'noindex',
897 } elseif ( $this->getContext()->getRequest()->getInt( 'curid' ) ) {
898 # For ?curid=x urls, disallow indexing
900 'index' => 'noindex',
905 # Otherwise, construct the policy based on the various config variables.
906 $policy = self
::formatRobotPolicy( $wgDefaultRobotPolicy );
908 if ( isset( $wgNamespaceRobotPolicies[$ns] ) ) {
909 # Honour customised robot policies for this namespace
910 $policy = array_merge(
912 self
::formatRobotPolicy( $wgNamespaceRobotPolicies[$ns] )
915 if ( $this->getTitle()->canUseNoindex() && is_object( $pOutput ) && $pOutput->getIndexPolicy() ) {
916 # __INDEX__ and __NOINDEX__ magic words, if allowed. Incorporates
917 # a final sanity check that we have really got the parser output.
918 $policy = array_merge(
920 array( 'index' => $pOutput->getIndexPolicy() )
924 if ( isset( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] ) ) {
925 # (bug 14900) site config can override user-defined __INDEX__ or __NOINDEX__
926 $policy = array_merge(
928 self
::formatRobotPolicy( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] )
936 * Converts a String robot policy into an associative array, to allow
937 * merging of several policies using array_merge().
938 * @param $policy Mixed, returns empty array on null/false/'', transparent
939 * to already-converted arrays, converts String.
940 * @return Array: 'index' => \<indexpolicy\>, 'follow' => \<followpolicy\>
942 public static function formatRobotPolicy( $policy ) {
943 if ( is_array( $policy ) ) {
945 } elseif ( !$policy ) {
949 $policy = explode( ',', $policy );
950 $policy = array_map( 'trim', $policy );
953 foreach ( $policy as $var ) {
954 if ( in_array( $var, array( 'index', 'noindex' ) ) ) {
955 $arr['index'] = $var;
956 } elseif ( in_array( $var, array( 'follow', 'nofollow' ) ) ) {
957 $arr['follow'] = $var;
965 * If this request is a redirect view, send "redirected from" subtitle to
966 * the output. Returns true if the header was needed, false if this is not
967 * a redirect view. Handles both local and remote redirects.
971 public function showRedirectedFromHeader() {
972 global $wgRedirectSources;
973 $outputPage = $this->getContext()->getOutput();
975 $rdfrom = $this->getContext()->getRequest()->getVal( 'rdfrom' );
977 if ( isset( $this->mRedirectedFrom
) ) {
978 // This is an internally redirected page view.
979 // We'll need a backlink to the source page for navigation.
980 if ( wfRunHooks( 'ArticleViewRedirect', array( &$this ) ) ) {
981 $redir = Linker
::linkKnown(
982 $this->mRedirectedFrom
,
985 array( 'redirect' => 'no' )
988 $outputPage->addSubtitle( wfMessage( 'redirectedfrom' )->rawParams( $redir ) );
990 // Set the fragment if one was specified in the redirect
991 if ( strval( $this->getTitle()->getFragment() ) != '' ) {
992 $outputPage->addInlineScript( Xml
::encodeJsCall(
993 'redirectToFragment', array( $this->getTitle()->getFragmentForURL() )
997 // Add a <link rel="canonical"> tag
998 $outputPage->setCanonicalUrl( $this->getTitle()->getLocalURL() );
1000 // Tell the output object that the user arrived at this article through a redirect
1001 $outputPage->setRedirectedFrom( $this->mRedirectedFrom
);
1005 } elseif ( $rdfrom ) {
1006 // This is an externally redirected view, from some other wiki.
1007 // If it was reported from a trusted site, supply a backlink.
1008 if ( $wgRedirectSources && preg_match( $wgRedirectSources, $rdfrom ) ) {
1009 $redir = Linker
::makeExternalLink( $rdfrom, $rdfrom );
1010 $outputPage->addSubtitle( wfMessage( 'redirectedfrom' )->rawParams( $redir ) );
1020 * Show a header specific to the namespace currently being viewed, like
1021 * [[MediaWiki:Talkpagetext]]. For Article::view().
1023 public function showNamespaceHeader() {
1024 if ( $this->getTitle()->isTalkPage() ) {
1025 if ( !wfMessage( 'talkpageheader' )->isDisabled() ) {
1026 $this->getContext()->getOutput()->wrapWikiMsg( "<div class=\"mw-talkpageheader\">\n$1\n</div>", array( 'talkpageheader' ) );
1032 * Show the footer section of an ordinary page view
1034 public function showViewFooter() {
1035 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
1036 if ( $this->getTitle()->getNamespace() == NS_USER_TALK
&& IP
::isValid( $this->getTitle()->getText() ) ) {
1037 $this->getContext()->getOutput()->addWikiMsg( 'anontalkpagetext' );
1040 // Show a footer allowing the user to patrol the shown revision or page if possible
1041 $patrolFooterShown = $this->showPatrolFooter();
1043 wfRunHooks( 'ArticleViewFooter', array( $this, $patrolFooterShown ) );
1048 * If patrol is possible, output a patrol UI box. This is called from the
1049 * footer section of ordinary page views. If patrol is not possible or not
1050 * desired, does nothing.
1051 * Side effect: When the patrol link is build, this method will call
1052 * OutputPage::preventClickjacking() and load mediawiki.page.patrol.ajax.
1056 public function showPatrolFooter() {
1057 global $wgUseNPPatrol, $wgUseRCPatrol, $wgEnableAPI, $wgEnableWriteAPI;
1059 $outputPage = $this->getContext()->getOutput();
1060 $user = $this->getContext()->getUser();
1061 $cache = wfGetMainCache();
1064 if ( !$this->getTitle()->quickUserCan( 'patrol', $user ) ||
!( $wgUseRCPatrol ||
$wgUseNPPatrol ) ) {
1065 // Patrolling is disabled or the user isn't allowed to
1069 wfProfileIn( __METHOD__
);
1071 // New page patrol: Get the timestamp of the oldest revison which
1072 // the revision table holds for the given page. Then we look
1073 // whether it's within the RC lifespan and if it is, we try
1074 // to get the recentchanges row belonging to that entry
1075 // (with rc_new = 1).
1077 // Check for cached results
1078 if ( $cache->get( wfMemcKey( 'NotPatrollablePage', $this->getTitle()->getArticleID() ) ) ) {
1079 wfProfileOut( __METHOD__
);
1083 if ( $this->mRevision
&& !RecentChange
::isInRCLifespan( $this->mRevision
->getTimestamp(), 21600 ) ) {
1084 // The current revision is already older than what could be in the RC table
1085 // 6h tolerance because the RC might not be cleaned out regularly
1086 wfProfileOut( __METHOD__
);
1090 $dbr = wfGetDB( DB_SLAVE
);
1091 $oldestRevisionTimestamp = $dbr->selectField(
1093 'MIN( rev_timestamp )',
1094 array( 'rev_page' => $this->getTitle()->getArticleID() ),
1098 if ( $oldestRevisionTimestamp && RecentChange
::isInRCLifespan( $oldestRevisionTimestamp, 21600 ) ) {
1099 // 6h tolerance because the RC might not be cleaned out regularly
1100 $rc = RecentChange
::newFromConds(
1103 'rc_timestamp' => $oldestRevisionTimestamp,
1104 'rc_namespace' => $this->getTitle()->getNamespace(),
1105 'rc_cur_id' => $this->getTitle()->getArticleID(),
1109 array( 'USE INDEX' => 'new_name_timestamp' )
1114 // No RC entry around
1116 // Cache the information we gathered above in case we can't patrol
1117 // Don't cache in case we can patrol as this could change
1118 $cache->set( wfMemcKey( 'NotPatrollablePage', $this->getTitle()->getArticleID() ), '1' );
1120 wfProfileOut( __METHOD__
);
1124 if ( $rc->getPerformer()->getName() == $user->getName() ) {
1125 // Don't show a patrol link for own creations. If the user could
1126 // patrol them, they already would be patrolled
1127 wfProfileOut( __METHOD__
);
1131 $rcid = $rc->getAttribute( 'rc_id' );
1133 $token = $user->getEditToken( $rcid );
1135 $outputPage->preventClickjacking();
1136 if ( $wgEnableAPI && $wgEnableWriteAPI && $user->isAllowed( 'writeapi' ) ) {
1137 $outputPage->addModules( 'mediawiki.page.patrol.ajax' );
1140 $link = Linker
::linkKnown(
1142 wfMessage( 'markaspatrolledtext' )->escaped(),
1145 'action' => 'markpatrolled',
1151 $outputPage->addHTML(
1152 "<div class='patrollink'>" .
1153 wfMessage( 'markaspatrolledlink' )->rawParams( $link )->escaped() .
1157 wfProfileOut( __METHOD__
);
1162 * Show the error text for a missing article. For articles in the MediaWiki
1163 * namespace, show the default message text. To be called from Article::view().
1165 public function showMissingArticle() {
1166 global $wgSend404Code;
1167 $outputPage = $this->getContext()->getOutput();
1168 // Whether the page is a root user page of an existing user (but not a subpage)
1169 $validUserPage = false;
1171 # Show info in user (talk) namespace. Does the user exist? Is he blocked?
1172 if ( $this->getTitle()->getNamespace() == NS_USER ||
$this->getTitle()->getNamespace() == NS_USER_TALK
) {
1173 $parts = explode( '/', $this->getTitle()->getText() );
1174 $rootPart = $parts[0];
1175 $user = User
::newFromName( $rootPart, false /* allow IP users*/ );
1176 $ip = User
::isIP( $rootPart );
1178 if ( !( $user && $user->isLoggedIn() ) && !$ip ) { # User does not exist
1179 $outputPage->wrapWikiMsg( "<div class=\"mw-userpage-userdoesnotexist error\">\n\$1\n</div>",
1180 array( 'userpage-userdoesnotexist-view', wfEscapeWikiText( $rootPart ) ) );
1181 } elseif ( $user->isBlocked() ) { # Show log extract if the user is currently blocked
1182 LogEventsList
::showLogExtract(
1185 $user->getUserPage(),
1189 'showIfEmpty' => false,
1191 'blocked-notice-logextract',
1192 $user->getName() # Support GENDER in notice
1196 $validUserPage = !$this->getTitle()->isSubpage();
1198 $validUserPage = !$this->getTitle()->isSubpage();
1202 wfRunHooks( 'ShowMissingArticle', array( $this ) );
1204 # Show delete and move logs
1205 LogEventsList
::showLogExtract( $outputPage, array( 'delete', 'move' ), $this->getTitle(), '',
1207 'conds' => array( "log_action != 'revision'" ),
1208 'showIfEmpty' => false,
1209 'msgKey' => array( 'moveddeleted-notice' ) )
1212 if ( !$this->mPage
->hasViewableContent() && $wgSend404Code && !$validUserPage ) {
1213 // If there's no backing content, send a 404 Not Found
1214 // for better machine handling of broken links.
1215 $this->getContext()->getRequest()->response()->header( "HTTP/1.1 404 Not Found" );
1218 if ( $validUserPage ) {
1219 // Also apply the robot policy for nonexisting user pages (as those aren't served as 404)
1220 $policy = $this->getRobotPolicy( 'view' );
1221 $outputPage->setIndexPolicy( $policy['index'] );
1222 $outputPage->setFollowPolicy( $policy['follow'] );
1225 $hookResult = wfRunHooks( 'BeforeDisplayNoArticleText', array( $this ) );
1227 if ( ! $hookResult ) {
1231 # Show error message
1232 $oldid = $this->getOldID();
1234 $text = wfMessage( 'missing-revision', $oldid )->plain();
1235 } elseif ( $this->getTitle()->getNamespace() === NS_MEDIAWIKI
) {
1236 // Use the default message text
1237 $text = $this->getTitle()->getDefaultMessageText();
1238 } elseif ( $this->getTitle()->quickUserCan( 'create', $this->getContext()->getUser() )
1239 && $this->getTitle()->quickUserCan( 'edit', $this->getContext()->getUser() )
1241 $message = $this->getContext()->getUser()->isLoggedIn() ?
'noarticletext' : 'noarticletextanon';
1242 $text = wfMessage( $message )->plain();
1244 $text = wfMessage( 'noarticletext-nopermission' )->plain();
1246 $text = "<div class='noarticletext'>\n$text\n</div>";
1248 $outputPage->addWikiText( $text );
1252 * If the revision requested for view is deleted, check permissions.
1253 * Send either an error message or a warning header to the output.
1255 * @return boolean true if the view is allowed, false if not.
1257 public function showDeletedRevisionHeader() {
1258 if ( !$this->mRevision
->isDeleted( Revision
::DELETED_TEXT
) ) {
1263 $outputPage = $this->getContext()->getOutput();
1264 $user = $this->getContext()->getUser();
1265 // If the user is not allowed to see it...
1266 if ( !$this->mRevision
->userCan( Revision
::DELETED_TEXT
, $user ) ) {
1267 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1268 'rev-deleted-text-permission' );
1271 // If the user needs to confirm that they want to see it...
1272 } elseif ( $this->getContext()->getRequest()->getInt( 'unhide' ) != 1 ) {
1273 # Give explanation and add a link to view the revision...
1274 $oldid = intval( $this->getOldID() );
1275 $link = $this->getTitle()->getFullURL( "oldid={$oldid}&unhide=1" );
1276 $msg = $this->mRevision
->isDeleted( Revision
::DELETED_RESTRICTED
) ?
1277 'rev-suppressed-text-unhide' : 'rev-deleted-text-unhide';
1278 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1279 array( $msg, $link ) );
1282 // We are allowed to see...
1284 $msg = $this->mRevision
->isDeleted( Revision
::DELETED_RESTRICTED
) ?
1285 'rev-suppressed-text-view' : 'rev-deleted-text-view';
1286 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n", $msg );
1293 * Generate the navigation links when browsing through an article revisions
1294 * It shows the information as:
1295 * Revision as of \<date\>; view current revision
1296 * \<- Previous version | Next Version -\>
1298 * @param int $oldid revision ID of this article revision
1300 public function setOldSubtitle( $oldid = 0 ) {
1301 if ( !wfRunHooks( 'DisplayOldSubtitle', array( &$this, &$oldid ) ) ) {
1305 $unhide = $this->getContext()->getRequest()->getInt( 'unhide' ) == 1;
1307 # Cascade unhide param in links for easy deletion browsing
1308 $extraParams = array();
1310 $extraParams['unhide'] = 1;
1313 if ( $this->mRevision
&& $this->mRevision
->getId() === $oldid ) {
1314 $revision = $this->mRevision
;
1316 $revision = Revision
::newFromId( $oldid );
1319 $timestamp = $revision->getTimestamp();
1321 $current = ( $oldid == $this->mPage
->getLatest() );
1322 $language = $this->getContext()->getLanguage();
1323 $user = $this->getContext()->getUser();
1325 $td = $language->userTimeAndDate( $timestamp, $user );
1326 $tddate = $language->userDate( $timestamp, $user );
1327 $tdtime = $language->userTime( $timestamp, $user );
1329 # Show user links if allowed to see them. If hidden, then show them only if requested...
1330 $userlinks = Linker
::revUserTools( $revision, !$unhide );
1332 $infomsg = $current && !wfMessage( 'revision-info-current' )->isDisabled()
1333 ?
'revision-info-current'
1336 $outputPage = $this->getContext()->getOutput();
1337 $outputPage->addSubtitle( "<div id=\"mw-{$infomsg}\">" . wfMessage( $infomsg,
1338 $td )->rawParams( $userlinks )->params( $revision->getID(), $tddate,
1339 $tdtime, $revision->getUser() )->parse() . "</div>" );
1342 ?
wfMessage( 'currentrevisionlink' )->escaped()
1343 : Linker
::linkKnown(
1345 wfMessage( 'currentrevisionlink' )->escaped(),
1350 ?
wfMessage( 'diff' )->escaped()
1351 : Linker
::linkKnown(
1353 wfMessage( 'diff' )->escaped(),
1360 $prev = $this->getTitle()->getPreviousRevisionID( $oldid );
1362 ? Linker
::linkKnown(
1364 wfMessage( 'previousrevision' )->escaped(),
1367 'direction' => 'prev',
1371 : wfMessage( 'previousrevision' )->escaped();
1373 ? Linker
::linkKnown(
1375 wfMessage( 'diff' )->escaped(),
1382 : wfMessage( 'diff' )->escaped();
1383 $nextlink = $current
1384 ?
wfMessage( 'nextrevision' )->escaped()
1385 : Linker
::linkKnown(
1387 wfMessage( 'nextrevision' )->escaped(),
1390 'direction' => 'next',
1394 $nextdiff = $current
1395 ?
wfMessage( 'diff' )->escaped()
1396 : Linker
::linkKnown(
1398 wfMessage( 'diff' )->escaped(),
1406 $cdel = Linker
::getRevDeleteLink( $user, $revision, $this->getTitle() );
1407 if ( $cdel !== '' ) {
1411 $outputPage->addSubtitle( "<div id=\"mw-revision-nav\">" . $cdel .
1412 wfMessage( 'revision-nav' )->rawParams(
1413 $prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff
1414 )->escaped() . "</div>" );
1420 * @param $target Title|Array of destination(s) to redirect
1421 * @param $appendSubtitle Boolean [optional]
1422 * @param $forceKnown Boolean: should the image be shown as a bluelink regardless of existence?
1423 * @return string containing HMTL with redirect link
1425 public function viewRedirect( $target, $appendSubtitle = true, $forceKnown = false ) {
1426 global $wgStylePath;
1428 if ( !is_array( $target ) ) {
1429 $target = array( $target );
1432 $lang = $this->getTitle()->getPageLanguage();
1433 $imageDir = $lang->getDir();
1435 if ( $appendSubtitle ) {
1436 $out = $this->getContext()->getOutput();
1437 $out->addSubtitle( wfMessage( 'redirectpagesub' )->escaped() );
1440 // the loop prepends the arrow image before the link, so the first case needs to be outside
1445 $title = array_shift( $target );
1447 if ( $forceKnown ) {
1448 $link = Linker
::linkKnown( $title, htmlspecialchars( $title->getFullText() ) );
1450 $link = Linker
::link( $title, htmlspecialchars( $title->getFullText() ) );
1453 $nextRedirect = $wgStylePath . '/common/images/nextredirect' . $imageDir . '.png';
1454 $alt = $lang->isRTL() ?
'←' : '→';
1455 // Automatically append redirect=no to each link, since most of them are redirect pages themselves.
1456 foreach ( $target as $rt ) {
1457 $link .= Html
::element( 'img', array( 'src' => $nextRedirect, 'alt' => $alt ) );
1458 if ( $forceKnown ) {
1459 $link .= Linker
::linkKnown( $rt, htmlspecialchars( $rt->getFullText(), array(), array( 'redirect' => 'no' ) ) );
1461 $link .= Linker
::link( $rt, htmlspecialchars( $rt->getFullText() ), array(), array( 'redirect' => 'no' ) );
1465 $imageUrl = $wgStylePath . '/common/images/redirect' . $imageDir . '.png';
1466 return '<div class="redirectMsg">' .
1467 Html
::element( 'img', array( 'src' => $imageUrl, 'alt' => '#REDIRECT' ) ) .
1468 '<span class="redirectText">' . $link . '</span></div>';
1472 * Handle action=render
1474 public function render() {
1475 $this->getContext()->getOutput()->setArticleBodyOnly( true );
1480 * action=protect handler
1482 public function protect() {
1483 $form = new ProtectionForm( $this );
1488 * action=unprotect handler (alias)
1490 public function unprotect() {
1495 * UI entry point for page deletion
1497 public function delete() {
1498 # This code desperately needs to be totally rewritten
1500 $title = $this->getTitle();
1501 $user = $this->getContext()->getUser();
1504 $permission_errors = $title->getUserPermissionsErrors( 'delete', $user );
1505 if ( count( $permission_errors ) ) {
1506 throw new PermissionsError( 'delete', $permission_errors );
1509 # Read-only check...
1510 if ( wfReadOnly() ) {
1511 throw new ReadOnlyError
;
1514 # Better double-check that it hasn't been deleted yet!
1515 $this->mPage
->loadPageData( 'fromdbmaster' );
1516 if ( !$this->mPage
->exists() ) {
1517 $deleteLogPage = new LogPage( 'delete' );
1518 $outputPage = $this->getContext()->getOutput();
1519 $outputPage->setPageTitle( wfMessage( 'cannotdelete-title', $title->getPrefixedText() ) );
1520 $outputPage->wrapWikiMsg( "<div class=\"error mw-error-cannotdelete\">\n$1\n</div>",
1521 array( 'cannotdelete', wfEscapeWikiText( $title->getPrefixedText() ) )
1523 $outputPage->addHTML(
1524 Xml
::element( 'h2', null, $deleteLogPage->getName()->text() )
1526 LogEventsList
::showLogExtract(
1535 $request = $this->getContext()->getRequest();
1536 $deleteReasonList = $request->getText( 'wpDeleteReasonList', 'other' );
1537 $deleteReason = $request->getText( 'wpReason' );
1539 if ( $deleteReasonList == 'other' ) {
1540 $reason = $deleteReason;
1541 } elseif ( $deleteReason != '' ) {
1542 // Entry from drop down menu + additional comment
1543 $colonseparator = wfMessage( 'colon-separator' )->inContentLanguage()->text();
1544 $reason = $deleteReasonList . $colonseparator . $deleteReason;
1546 $reason = $deleteReasonList;
1549 if ( $request->wasPosted() && $user->matchEditToken( $request->getVal( 'wpEditToken' ),
1550 array( 'delete', $this->getTitle()->getPrefixedText() ) ) )
1552 # Flag to hide all contents of the archived revisions
1553 $suppress = $request->getVal( 'wpSuppress' ) && $user->isAllowed( 'suppressrevision' );
1555 $this->doDelete( $reason, $suppress );
1557 WatchAction
::doWatchOrUnwatch( $request->getCheck( 'wpWatch' ), $title, $user );
1562 // Generate deletion reason
1563 $hasHistory = false;
1566 $reason = $this->generateReason( $hasHistory );
1567 } catch ( MWException
$e ) {
1568 # if a page is horribly broken, we still want to be able to delete it. so be lenient about errors here.
1569 wfDebug( "Error while building auto delete summary: $e" );
1574 // If the page has a history, insert a warning
1575 if ( $hasHistory ) {
1576 $revisions = $this->mTitle
->estimateRevisionCount();
1577 // @todo FIXME: i18n issue/patchwork message
1578 $this->getContext()->getOutput()->addHTML( '<strong class="mw-delete-warning-revisions">' .
1579 wfMessage( 'historywarning' )->numParams( $revisions )->parse() .
1580 wfMessage( 'word-separator' )->plain() . Linker
::linkKnown( $title,
1581 wfMessage( 'history' )->escaped(),
1582 array( 'rel' => 'archives' ),
1583 array( 'action' => 'history' ) ) .
1587 if ( $this->mTitle
->isBigDeletion() ) {
1588 global $wgDeleteRevisionsLimit;
1589 $this->getContext()->getOutput()->wrapWikiMsg( "<div class='error'>\n$1\n</div>\n",
1590 array( 'delete-warning-toobig', $this->getContext()->getLanguage()->formatNum( $wgDeleteRevisionsLimit ) ) );
1594 $this->confirmDelete( $reason );
1598 * Output deletion confirmation dialog
1599 * @todo FIXME: Move to another file?
1600 * @param string $reason prefilled reason
1602 public function confirmDelete( $reason ) {
1603 wfDebug( "Article::confirmDelete\n" );
1605 $outputPage = $this->getContext()->getOutput();
1606 $outputPage->setPageTitle( wfMessage( 'delete-confirm', $this->getTitle()->getPrefixedText() ) );
1607 $outputPage->addBacklinkSubtitle( $this->getTitle() );
1608 $outputPage->setRobotPolicy( 'noindex,nofollow' );
1609 $outputPage->addWikiMsg( 'confirmdeletetext' );
1611 wfRunHooks( 'ArticleConfirmDelete', array( $this, $outputPage, &$reason ) );
1613 $user = $this->getContext()->getUser();
1615 if ( $user->isAllowed( 'suppressrevision' ) ) {
1616 $suppress = "<tr id=\"wpDeleteSuppressRow\">
1618 <td class='mw-input'><strong>" .
1619 Xml
::checkLabel( wfMessage( 'revdelete-suppress' )->text(),
1620 'wpSuppress', 'wpSuppress', false, array( 'tabindex' => '4' ) ) .
1626 $checkWatch = $user->getBoolOption( 'watchdeletion' ) ||
$user->isWatched( $this->getTitle() );
1628 $form = Xml
::openElement( 'form', array( 'method' => 'post',
1629 'action' => $this->getTitle()->getLocalURL( 'action=delete' ), 'id' => 'deleteconfirm' ) ) .
1630 Xml
::openElement( 'fieldset', array( 'id' => 'mw-delete-table' ) ) .
1631 Xml
::tags( 'legend', null, wfMessage( 'delete-legend' )->escaped() ) .
1632 Xml
::openElement( 'table', array( 'id' => 'mw-deleteconfirm-table' ) ) .
1633 "<tr id=\"wpDeleteReasonListRow\">
1634 <td class='mw-label'>" .
1635 Xml
::label( wfMessage( 'deletecomment' )->text(), 'wpDeleteReasonList' ) .
1637 <td class='mw-input'>" .
1638 Xml
::listDropDown( 'wpDeleteReasonList',
1639 wfMessage( 'deletereason-dropdown' )->inContentLanguage()->text(),
1640 wfMessage( 'deletereasonotherlist' )->inContentLanguage()->text(), '', 'wpReasonDropDown', 1 ) .
1643 <tr id=\"wpDeleteReasonRow\">
1644 <td class='mw-label'>" .
1645 Xml
::label( wfMessage( 'deleteotherreason' )->text(), 'wpReason' ) .
1647 <td class='mw-input'>" .
1648 Html
::input( 'wpReason', $reason, 'text', array(
1650 'maxlength' => '255',
1658 # Disallow watching if user is not logged in
1659 if ( $user->isLoggedIn() ) {
1663 <td class='mw-input'>" .
1664 Xml
::checkLabel( wfMessage( 'watchthis' )->text(),
1665 'wpWatch', 'wpWatch', $checkWatch, array( 'tabindex' => '3' ) ) .
1674 <td class='mw-submit'>" .
1675 Xml
::submitButton( wfMessage( 'deletepage' )->text(),
1676 array( 'name' => 'wpConfirmB', 'id' => 'wpConfirmB', 'tabindex' => '5' ) ) .
1679 Xml
::closeElement( 'table' ) .
1680 Xml
::closeElement( 'fieldset' ) .
1681 Html
::hidden( 'wpEditToken', $user->getEditToken( array( 'delete', $this->getTitle()->getPrefixedText() ) ) ) .
1682 Xml
::closeElement( 'form' );
1684 if ( $user->isAllowed( 'editinterface' ) ) {
1685 $title = Title
::makeTitle( NS_MEDIAWIKI
, 'Deletereason-dropdown' );
1686 $link = Linker
::link(
1688 wfMessage( 'delete-edit-reasonlist' )->escaped(),
1690 array( 'action' => 'edit' )
1692 $form .= '<p class="mw-delete-editreasons">' . $link . '</p>';
1695 $outputPage->addHTML( $form );
1697 $deleteLogPage = new LogPage( 'delete' );
1698 $outputPage->addHTML( Xml
::element( 'h2', null, $deleteLogPage->getName()->text() ) );
1699 LogEventsList
::showLogExtract( $outputPage, 'delete',
1705 * Perform a deletion and output success or failure messages
1707 * @param $suppress bool
1709 public function doDelete( $reason, $suppress = false ) {
1711 $outputPage = $this->getContext()->getOutput();
1712 $status = $this->mPage
->doDeleteArticleReal( $reason, $suppress, 0, true, $error );
1713 if ( $status->isGood() ) {
1714 $deleted = $this->getTitle()->getPrefixedText();
1716 $outputPage->setPageTitle( wfMessage( 'actioncomplete' ) );
1717 $outputPage->setRobotPolicy( 'noindex,nofollow' );
1719 $loglink = '[[Special:Log/delete|' . wfMessage( 'deletionlog' )->text() . ']]';
1721 $outputPage->addWikiMsg( 'deletedtext', wfEscapeWikiText( $deleted ), $loglink );
1722 $outputPage->returnToMain( false );
1724 $outputPage->setPageTitle( wfMessage( 'cannotdelete-title', $this->getTitle()->getPrefixedText() ) );
1725 if ( $error == '' ) {
1726 $outputPage->addWikiText(
1727 "<div class=\"error mw-error-cannotdelete\">\n" . $status->getWikiText() . "\n</div>"
1729 $deleteLogPage = new LogPage( 'delete' );
1730 $outputPage->addHTML( Xml
::element( 'h2', null, $deleteLogPage->getName()->text() ) );
1732 LogEventsList
::showLogExtract(
1738 $outputPage->addHTML( $error );
1743 /* Caching functions */
1746 * checkLastModified returns true if it has taken care of all
1747 * output to the client that is necessary for this request.
1748 * (that is, it has sent a cached version of the page)
1750 * @return boolean true if cached version send, false otherwise
1752 protected function tryFileCache() {
1753 static $called = false;
1756 wfDebug( "Article::tryFileCache(): called twice!?\n" );
1761 if ( $this->isFileCacheable() ) {
1762 $cache = HTMLFileCache
::newFromTitle( $this->getTitle(), 'view' );
1763 if ( $cache->isCacheGood( $this->mPage
->getTouched() ) ) {
1764 wfDebug( "Article::tryFileCache(): about to load file\n" );
1765 $cache->loadFromFileCache( $this->getContext() );
1768 wfDebug( "Article::tryFileCache(): starting buffer\n" );
1769 ob_start( array( &$cache, 'saveToFileCache' ) );
1772 wfDebug( "Article::tryFileCache(): not cacheable\n" );
1779 * Check if the page can be cached
1782 public function isFileCacheable() {
1785 if ( HTMLFileCache
::useFileCache( $this->getContext() ) ) {
1786 $cacheable = $this->mPage
->getID()
1787 && !$this->mRedirectedFrom
&& !$this->getTitle()->isRedirect();
1788 // Extension may have reason to disable file caching on some pages.
1790 $cacheable = wfRunHooks( 'IsFileCacheable', array( &$this ) );
1800 * Lightweight method to get the parser output for a page, checking the parser cache
1801 * and so on. Doesn't consider most of the stuff that WikiPage::view is forced to
1802 * consider, so it's not appropriate to use there.
1804 * @since 1.16 (r52326) for LiquidThreads
1806 * @param $oldid mixed integer Revision ID or null
1807 * @param $user User The relevant user
1808 * @return ParserOutput or false if the given revision ID is not found
1810 public function getParserOutput( $oldid = null, User
$user = null ) {
1811 //XXX: bypasses mParserOptions and thus setParserOptions()
1813 if ( $user === null ) {
1814 $parserOptions = $this->getParserOptions();
1816 $parserOptions = $this->mPage
->makeParserOptions( $user );
1819 return $this->mPage
->getParserOutput( $parserOptions, $oldid );
1823 * Override the ParserOptions used to render the primary article wikitext.
1825 * @param ParserOptions $options
1826 * @throws MWException if the parser options where already initialized.
1828 public function setParserOptions( ParserOptions
$options ) {
1829 if ( $this->mParserOptions
) {
1830 throw new MWException( "can't change parser options after they have already been set" );
1833 // clone, so if $options is modified later, it doesn't confuse the parser cache.
1834 $this->mParserOptions
= clone $options;
1838 * Get parser options suitable for rendering the primary article wikitext
1839 * @return ParserOptions
1841 public function getParserOptions() {
1842 if ( !$this->mParserOptions
) {
1843 $this->mParserOptions
= $this->mPage
->makeParserOptions( $this->getContext() );
1845 // Clone to allow modifications of the return value without affecting cache
1846 return clone $this->mParserOptions
;
1850 * Sets the context this Article is executed in
1852 * @param $context IContextSource
1855 public function setContext( $context ) {
1856 $this->mContext
= $context;
1860 * Gets the context this Article is executed in
1862 * @return IContextSource
1865 public function getContext() {
1866 if ( $this->mContext
instanceof IContextSource
) {
1867 return $this->mContext
;
1869 wfDebug( __METHOD__
. " called and \$mContext is null. Return RequestContext::getMain(); for sanity\n" );
1870 return RequestContext
::getMain();
1875 * Info about this page
1876 * @deprecated since 1.19
1878 public function info() {
1879 wfDeprecated( __METHOD__
, '1.19' );
1880 Action
::factory( 'info', $this )->show();
1884 * Mark this particular edit/page as patrolled
1885 * @deprecated since 1.18
1887 public function markpatrolled() {
1888 wfDeprecated( __METHOD__
, '1.18' );
1889 Action
::factory( 'markpatrolled', $this )->show();
1893 * Handle action=purge
1894 * @deprecated since 1.19
1895 * @return Action|bool|null false if the action is disabled, null if it is not recognised
1897 public function purge() {
1898 return Action
::factory( 'purge', $this )->show();
1902 * Handle action=revert
1903 * @deprecated since 1.19
1905 public function revert() {
1906 wfDeprecated( __METHOD__
, '1.19' );
1907 Action
::factory( 'revert', $this )->show();
1911 * Handle action=rollback
1912 * @deprecated since 1.19
1914 public function rollback() {
1915 wfDeprecated( __METHOD__
, '1.19' );
1916 Action
::factory( 'rollback', $this )->show();
1920 * User-interface handler for the "watch" action.
1921 * Requires Request to pass a token as of 1.18.
1922 * @deprecated since 1.18
1924 public function watch() {
1925 wfDeprecated( __METHOD__
, '1.18' );
1926 Action
::factory( 'watch', $this )->show();
1930 * Add this page to the current user's watchlist
1932 * This is safe to be called multiple times
1934 * @return bool true on successful watch operation
1935 * @deprecated since 1.18
1937 public function doWatch() {
1938 wfDeprecated( __METHOD__
, '1.18' );
1939 return WatchAction
::doWatch( $this->getTitle(), $this->getContext()->getUser() );
1943 * User interface handler for the "unwatch" action.
1944 * Requires Request to pass a token as of 1.18.
1945 * @deprecated since 1.18
1947 public function unwatch() {
1948 wfDeprecated( __METHOD__
, '1.18' );
1949 Action
::factory( 'unwatch', $this )->show();
1953 * Stop watching a page
1954 * @return bool true on successful unwatch
1955 * @deprecated since 1.18
1957 public function doUnwatch() {
1958 wfDeprecated( __METHOD__
, '1.18' );
1959 return WatchAction
::doUnwatch( $this->getTitle(), $this->getContext()->getUser() );
1963 * Output a redirect back to the article.
1964 * This is typically used after an edit.
1966 * @deprecated in 1.18; call OutputPage::redirect() directly
1967 * @param $noRedir Boolean: add redirect=no
1968 * @param string $sectionAnchor section to redirect to, including "#"
1969 * @param string $extraQuery extra query params
1971 public function doRedirect( $noRedir = false, $sectionAnchor = '', $extraQuery = '' ) {
1972 wfDeprecated( __METHOD__
, '1.18' );
1974 $query = 'redirect=no';
1975 if ( $extraQuery ) {
1976 $query .= "&$extraQuery";
1979 $query = $extraQuery;
1982 $this->getContext()->getOutput()->redirect( $this->getTitle()->getFullURL( $query ) . $sectionAnchor );
1986 * Use PHP's magic __get handler to handle accessing of
1987 * raw WikiPage fields for backwards compatibility.
1989 * @param string $fname Field name
1991 public function __get( $fname ) {
1992 if ( property_exists( $this->mPage
, $fname ) ) {
1993 #wfWarn( "Access to raw $fname field " . __CLASS__ );
1994 return $this->mPage
->$fname;
1996 trigger_error( 'Inaccessible property via __get(): ' . $fname, E_USER_NOTICE
);
2000 * Use PHP's magic __set handler to handle setting of
2001 * raw WikiPage fields for backwards compatibility.
2003 * @param string $fname Field name
2004 * @param $fvalue mixed New value
2006 public function __set( $fname, $fvalue ) {
2007 if ( property_exists( $this->mPage
, $fname ) ) {
2008 #wfWarn( "Access to raw $fname field of " . __CLASS__ );
2009 $this->mPage
->$fname = $fvalue;
2010 // Note: extensions may want to toss on new fields
2011 } elseif ( !in_array( $fname, array( 'mContext', 'mPage' ) ) ) {
2012 $this->mPage
->$fname = $fvalue;
2014 trigger_error( 'Inaccessible property via __set(): ' . $fname, E_USER_NOTICE
);
2019 * Use PHP's magic __call handler to transform instance calls to
2020 * WikiPage functions for backwards compatibility.
2022 * @param string $fname Name of called method
2023 * @param array $args Arguments to the method
2026 public function __call( $fname, $args ) {
2027 if ( is_callable( array( $this->mPage
, $fname ) ) ) {
2028 #wfWarn( "Call to " . __CLASS__ . "::$fname; please use WikiPage instead" );
2029 return call_user_func_array( array( $this->mPage
, $fname ), $args );
2031 trigger_error( 'Inaccessible function via __call(): ' . $fname, E_USER_ERROR
);
2034 // ****** B/C functions to work-around PHP silliness with __call and references ****** //
2037 * @param $limit array
2038 * @param $expiry array
2039 * @param $cascade bool
2040 * @param $reason string
2044 public function doUpdateRestrictions( array $limit, array $expiry, &$cascade, $reason, User
$user ) {
2045 return $this->mPage
->doUpdateRestrictions( $limit, $expiry, $cascade, $reason, $user );
2049 * @param $limit array
2050 * @param $reason string
2051 * @param $cascade int
2052 * @param $expiry array
2055 public function updateRestrictions( $limit = array(), $reason = '', &$cascade = 0, $expiry = array() ) {
2056 return $this->mPage
->doUpdateRestrictions(
2061 $this->getContext()->getUser()
2066 * @param $reason string
2067 * @param $suppress bool
2069 * @param $commit bool
2070 * @param $error string
2073 public function doDeleteArticle( $reason, $suppress = false, $id = 0, $commit = true, &$error = '' ) {
2074 return $this->mPage
->doDeleteArticle( $reason, $suppress, $id, $commit, $error );
2082 * @param $resultDetails
2086 public function doRollback( $fromP, $summary, $token, $bot, &$resultDetails, User
$user = null ) {
2087 $user = is_null( $user ) ?
$this->getContext()->getUser() : $user;
2088 return $this->mPage
->doRollback( $fromP, $summary, $token, $bot, $resultDetails, $user );
2095 * @param $resultDetails
2096 * @param $guser User
2099 public function commitRollback( $fromP, $summary, $bot, &$resultDetails, User
$guser = null ) {
2100 $guser = is_null( $guser ) ?
$this->getContext()->getUser() : $guser;
2101 return $this->mPage
->commitRollback( $fromP, $summary, $bot, $resultDetails, $guser );
2105 * @param $hasHistory bool
2108 public function generateReason( &$hasHistory ) {
2109 $title = $this->mPage
->getTitle();
2110 $handler = ContentHandler
::getForTitle( $title );
2111 return $handler->getAutoDeleteReason( $title, $hasHistory );
2114 // ****** B/C functions for static methods ( __callStatic is PHP>=5.3 ) ****** //
2119 public static function selectFields() {
2120 return WikiPage
::selectFields();
2124 * @param $title Title
2126 public static function onArticleCreate( $title ) {
2127 WikiPage
::onArticleCreate( $title );
2131 * @param $title Title
2133 public static function onArticleDelete( $title ) {
2134 WikiPage
::onArticleDelete( $title );
2138 * @param $title Title
2140 public static function onArticleEdit( $title ) {
2141 WikiPage
::onArticleEdit( $title );
2149 * @deprecated since 1.21, use ContentHandler::getAutosummary() instead
2151 public static function getAutosummary( $oldtext, $newtext, $flags ) {
2152 return WikiPage
::getAutosummary( $oldtext, $newtext, $flags );