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 class Article
implements Page
{
35 /** @var IContextSource The context this Article is executed in */
38 /** @var WikiPage The WikiPage object of this instance */
41 /** @var ParserOptions ParserOptions object for $wgUser articles */
42 public $mParserOptions;
45 * @var string Text of the revision we are working on
51 * @var Content Content of the revision we are working on
54 public $mContentObject;
56 /** @var bool Is the content ($mContent) already loaded? */
57 public $mContentLoaded = false;
59 /** @var int|null The oldid of the article that is to be shown, 0 for the current revision */
62 /** @var Title Title from which we were redirected here */
63 public $mRedirectedFrom = null;
65 /** @var string|bool URL to redirect to or false if none */
66 public $mRedirectUrl = false;
68 /** @var int Revision ID of revision we are working on */
69 public $mRevIdFetched = 0;
71 /** @var Revision Revision we are working on */
72 public $mRevision = null;
74 /** @var ParserOutput */
75 public $mParserOutput;
78 * Constructor and clear the article
79 * @param Title $title Reference to a Title object.
80 * @param int $oldId Revision ID, null to fetch from request, zero for current
82 public function __construct( Title
$title, $oldId = null ) {
83 $this->mOldId
= $oldId;
84 $this->mPage
= $this->newPage( $title );
91 protected function newPage( Title
$title ) {
92 return new WikiPage( $title );
96 * Constructor from a page id
97 * @param int $id Article ID to load
98 * @return Article|null
100 public static function newFromID( $id ) {
101 $t = Title
::newFromID( $id );
102 # @todo FIXME: Doesn't inherit right
103 return $t == null ?
null : new self( $t );
104 # return $t == null ? null : new static( $t ); // PHP 5.3
108 * Create an Article object of the appropriate class for the given page.
110 * @param Title $title
111 * @param IContextSource $context
114 public static function newFromTitle( $title, IContextSource
$context ) {
115 if ( NS_MEDIA
== $title->getNamespace() ) {
116 // FIXME: where should this go?
117 $title = Title
::makeTitle( NS_FILE
, $title->getDBkey() );
121 Hooks
::run( 'ArticleFromTitle', array( &$title, &$page, $context ) );
123 switch ( $title->getNamespace() ) {
125 $page = new ImagePage( $title );
128 $page = new CategoryPage( $title );
131 $page = new Article( $title );
134 $page->setContext( $context );
140 * Create an Article object of the appropriate class for the given page.
142 * @param WikiPage $page
143 * @param IContextSource $context
146 public static function newFromWikiPage( WikiPage
$page, IContextSource
$context ) {
147 $article = self
::newFromTitle( $page->getTitle(), $context );
148 $article->mPage
= $page; // override to keep process cached vars
153 * Tell the page view functions that this view was redirected
154 * from another page on the wiki.
157 public function setRedirectedFrom( Title
$from ) {
158 $this->mRedirectedFrom
= $from;
162 * Get the title object of the article
164 * @return Title Title object of this page
166 public function getTitle() {
167 return $this->mPage
->getTitle();
171 * Get the WikiPage object of this instance
176 public function getPage() {
183 public function clear() {
184 $this->mContentLoaded
= false;
186 $this->mRedirectedFrom
= null; # Title object if set
187 $this->mRevIdFetched
= 0;
188 $this->mRedirectUrl
= false;
190 $this->mPage
->clear();
194 * Note that getContent/loadContent do not follow redirects anymore.
195 * If you need to fetch redirectable content easily, try
196 * the shortcut in WikiPage::getRedirectTarget()
198 * This function has side effects! Do not use this function if you
199 * only want the real revision text if any.
201 * @deprecated since 1.21; use WikiPage::getContent() instead
203 * @return string Return the text of this revision
205 public function getContent() {
206 ContentHandler
::deprecated( __METHOD__
, '1.21' );
207 $content = $this->getContentObject();
208 return ContentHandler
::getContentText( $content );
212 * Returns a Content object representing the pages effective display content,
213 * not necessarily the revision's content!
215 * Note that getContent/loadContent do not follow redirects anymore.
216 * If you need to fetch redirectable content easily, try
217 * the shortcut in WikiPage::getRedirectTarget()
219 * This function has side effects! Do not use this function if you
220 * only want the real revision text if any.
222 * @return Content Return the content of this revision
226 protected function getContentObject() {
228 if ( $this->mPage
->getID() === 0 ) {
229 # If this is a MediaWiki:x message, then load the messages
230 # and return the message value for x.
231 if ( $this->getTitle()->getNamespace() == NS_MEDIAWIKI
) {
232 $text = $this->getTitle()->getDefaultMessageText();
233 if ( $text === false ) {
237 $content = ContentHandler
::makeContent( $text, $this->getTitle() );
239 $message = $this->getContext()->getUser()->isLoggedIn() ?
'noarticletext' : 'noarticletextanon';
240 $content = new MessageContent( $message, null, 'parsemag' );
243 $this->fetchContentObject();
244 $content = $this->mContentObject
;
251 * @return int The oldid of the article that is to be shown, 0 for the current revision
253 public function getOldID() {
254 if ( is_null( $this->mOldId
) ) {
255 $this->mOldId
= $this->getOldIDFromRequest();
258 return $this->mOldId
;
262 * Sets $this->mRedirectUrl to a correct URL if the query parameters are incorrect
264 * @return int The old id for the request
266 public function getOldIDFromRequest() {
267 $this->mRedirectUrl
= false;
269 $request = $this->getContext()->getRequest();
270 $oldid = $request->getIntOrNull( 'oldid' );
272 if ( $oldid === null ) {
276 if ( $oldid !== 0 ) {
277 # Load the given revision and check whether the page is another one.
278 # In that case, update this instance to reflect the change.
279 if ( $oldid === $this->mPage
->getLatest() ) {
280 $this->mRevision
= $this->mPage
->getRevision();
282 $this->mRevision
= Revision
::newFromId( $oldid );
283 if ( $this->mRevision
!== null ) {
284 // Revision title doesn't match the page title given?
285 if ( $this->mPage
->getID() != $this->mRevision
->getPage() ) {
286 $function = array( get_class( $this->mPage
), 'newFromID' );
287 $this->mPage
= call_user_func( $function, $this->mRevision
->getPage() );
293 if ( $request->getVal( 'direction' ) == 'next' ) {
294 $nextid = $this->getTitle()->getNextRevisionID( $oldid );
297 $this->mRevision
= null;
299 $this->mRedirectUrl
= $this->getTitle()->getFullURL( 'redirect=no' );
301 } elseif ( $request->getVal( 'direction' ) == 'prev' ) {
302 $previd = $this->getTitle()->getPreviousRevisionID( $oldid );
305 $this->mRevision
= null;
313 * Load the revision (including text) into this object
315 * @deprecated since 1.19; use fetchContent()
317 function loadContent() {
318 wfDeprecated( __METHOD__
, '1.19' );
319 $this->fetchContent();
323 * Get text of an article from database
324 * Does *NOT* follow redirects.
327 * @note This is really internal functionality that should really NOT be
328 * used by other functions. For accessing article content, use the WikiPage
329 * class, especially WikiBase::getContent(). However, a lot of legacy code
330 * uses this method to retrieve page text from the database, so the function
331 * has to remain public for now.
333 * @return string|bool String containing article contents, or false if null
334 * @deprecated since 1.21, use WikiPage::getContent() instead
336 function fetchContent() { #BC cruft!
337 ContentHandler
::deprecated( __METHOD__
, '1.21' );
339 if ( $this->mContentLoaded
&& $this->mContent
) {
340 return $this->mContent
;
343 $content = $this->fetchContentObject();
349 // @todo Get rid of mContent everywhere!
350 $this->mContent
= ContentHandler
::getContentText( $content );
351 ContentHandler
::runLegacyHooks( 'ArticleAfterFetchContent', array( &$this, &$this->mContent
) );
353 return $this->mContent
;
357 * Get text content object
358 * Does *NOT* follow redirects.
359 * @todo When is this null?
361 * @note Code that wants to retrieve page content from the database should
362 * use WikiPage::getContent().
364 * @return Content|null|bool
368 protected function fetchContentObject() {
369 if ( $this->mContentLoaded
) {
370 return $this->mContentObject
;
373 $this->mContentLoaded
= true;
374 $this->mContent
= null;
376 $oldid = $this->getOldID();
378 # Pre-fill content with error message so that if something
379 # fails we'll have something telling us what we intended.
380 //XXX: this isn't page content but a UI message. horrible.
381 $this->mContentObject
= new MessageContent( 'missing-revision', array( $oldid ) );
384 # $this->mRevision might already be fetched by getOldIDFromRequest()
385 if ( !$this->mRevision
) {
386 $this->mRevision
= Revision
::newFromId( $oldid );
387 if ( !$this->mRevision
) {
388 wfDebug( __METHOD__
. " failed to retrieve specified revision, id $oldid\n" );
393 $oldid = $this->mPage
->getLatest();
395 wfDebug( __METHOD__
. " failed to find page data for title " .
396 $this->getTitle()->getPrefixedText() . "\n" );
400 # Update error message with correct oldid
401 $this->mContentObject
= new MessageContent( 'missing-revision', array( $oldid ) );
403 $this->mRevision
= $this->mPage
->getRevision();
405 if ( !$this->mRevision
) {
406 wfDebug( __METHOD__
. " failed to retrieve current page, rev_id $oldid\n" );
411 // @todo FIXME: Horrible, horrible! This content-loading interface just plain sucks.
412 // We should instead work with the Revision object when we need it...
413 // Loads if user is allowed
414 $content = $this->mRevision
->getContent(
415 Revision
::FOR_THIS_USER
,
416 $this->getContext()->getUser()
420 wfDebug( __METHOD__
. " failed to retrieve content of revision " .
421 $this->mRevision
->getId() . "\n" );
425 $this->mContentObject
= $content;
426 $this->mRevIdFetched
= $this->mRevision
->getId();
428 Hooks
::run( 'ArticleAfterFetchContentObject', array( &$this, &$this->mContentObject
) );
430 return $this->mContentObject
;
434 * Returns true if the currently-referenced revision is the current edit
435 * to this page (and it exists).
438 public function isCurrent() {
439 # If no oldid, this is the current version.
440 if ( $this->getOldID() == 0 ) {
444 return $this->mPage
->exists() && $this->mRevision
&& $this->mRevision
->isCurrent();
448 * Get the fetched Revision object depending on request parameters or null
452 * @return Revision|null
454 public function getRevisionFetched() {
455 $this->fetchContentObject();
457 return $this->mRevision
;
461 * Use this to fetch the rev ID used on page views
463 * @return int Revision ID of last article revision
465 public function getRevIdFetched() {
466 if ( $this->mRevIdFetched
) {
467 return $this->mRevIdFetched
;
469 return $this->mPage
->getLatest();
474 * This is the default action of the index.php entry point: just view the
475 * page of the given title.
477 public function view() {
478 global $wgUseFileCache, $wgUseETag, $wgDebugToolbar, $wgMaxRedirects;
480 # Get variables from query string
481 # As side effect this will load the revision and update the title
482 # in a revision ID is passed in the request, so this should remain
483 # the first call of this method even if $oldid is used way below.
484 $oldid = $this->getOldID();
486 $user = $this->getContext()->getUser();
487 # Another whitelist check in case getOldID() is altering the title
488 $permErrors = $this->getTitle()->getUserPermissionsErrors( 'read', $user );
489 if ( count( $permErrors ) ) {
490 wfDebug( __METHOD__
. ": denied on secondary read check\n" );
491 throw new PermissionsError( 'read', $permErrors );
494 $outputPage = $this->getContext()->getOutput();
495 # getOldID() may as well want us to redirect somewhere else
496 if ( $this->mRedirectUrl
) {
497 $outputPage->redirect( $this->mRedirectUrl
);
498 wfDebug( __METHOD__
. ": redirecting due to oldid\n" );
503 # If we got diff in the query, we want to see a diff page instead of the article.
504 if ( $this->getContext()->getRequest()->getCheck( 'diff' ) ) {
505 wfDebug( __METHOD__
. ": showing diff page\n" );
506 $this->showDiffPage();
511 # Set page title (may be overridden by DISPLAYTITLE)
512 $outputPage->setPageTitle( $this->getTitle()->getPrefixedText() );
514 $outputPage->setArticleFlag( true );
515 # Allow frames by default
516 $outputPage->allowClickjacking();
518 $parserCache = ParserCache
::singleton();
520 $parserOptions = $this->getParserOptions();
521 # Render printable version, use printable version cache
522 if ( $outputPage->isPrintable() ) {
523 $parserOptions->setIsPrintable( true );
524 $parserOptions->setEditSection( false );
525 } elseif ( !$this->isCurrent() ||
!$this->getTitle()->quickUserCan( 'edit', $user ) ) {
526 $parserOptions->setEditSection( false );
529 # Try client and file cache
530 if ( !$wgDebugToolbar && $oldid === 0 && $this->mPage
->checkTouched() ) {
532 $outputPage->setETag( $parserCache->getETag( $this, $parserOptions ) );
535 # Use the greatest of the page's timestamp or the timestamp of any
536 # redirect in the chain (bug 67849)
537 $timestamp = $this->mPage
->getTouched();
538 if ( isset( $this->mRedirectedFrom
) ) {
539 $timestamp = max( $timestamp, $this->mRedirectedFrom
->getTouched() );
541 # If there can be more than one redirect in the chain, we have
542 # to go through the whole chain too in case an intermediate
543 # redirect was changed.
544 if ( $wgMaxRedirects > 1 ) {
545 $titles = Revision
::newFromTitle( $this->mRedirectedFrom
)
546 ->getContent( Revision
::FOR_THIS_USER
, $user )
547 ->getRedirectChain();
548 $thisTitle = $this->getTitle();
549 foreach ( $titles as $title ) {
550 if ( Title
::compare( $title, $thisTitle ) === 0 ) {
553 $timestamp = max( $timestamp, $title->getTouched() );
558 # Is it client cached?
559 if ( $outputPage->checkLastModified( $timestamp ) ) {
560 wfDebug( __METHOD__
. ": done 304\n" );
564 } elseif ( $wgUseFileCache && $this->tryFileCache() ) {
565 wfDebug( __METHOD__
. ": done file cache\n" );
566 # tell wgOut that output is taken care of
567 $outputPage->disable();
568 $this->mPage
->doViewUpdates( $user, $oldid );
574 # Should the parser cache be used?
575 $useParserCache = $this->mPage
->isParserCacheUsed( $parserOptions, $oldid );
576 wfDebug( 'Article::view using parser cache: ' . ( $useParserCache ?
'yes' : 'no' ) . "\n" );
577 if ( $user->getStubThreshold() ) {
578 $this->getContext()->getStats()->increment( 'pcache_miss_stub' );
581 $this->showRedirectedFromHeader();
582 $this->showNamespaceHeader();
584 # Iterate through the possible ways of constructing the output text.
585 # Keep going until $outputDone is set, or we run out of things to do.
588 $this->mParserOutput
= false;
590 while ( !$outputDone && ++
$pass ) {
593 Hooks
::run( 'ArticleViewHeader', array( &$this, &$outputDone, &$useParserCache ) );
596 # Early abort if the page doesn't exist
597 if ( !$this->mPage
->exists() ) {
598 wfDebug( __METHOD__
. ": showing missing article\n" );
599 $this->showMissingArticle();
600 $this->mPage
->doViewUpdates( $user );
604 # Try the parser cache
605 if ( $useParserCache ) {
606 $this->mParserOutput
= $parserCache->get( $this, $parserOptions );
608 if ( $this->mParserOutput
!== false ) {
610 wfDebug( __METHOD__
. ": showing parser cache contents for current rev permalink\n" );
611 $this->setOldSubtitle( $oldid );
613 wfDebug( __METHOD__
. ": showing parser cache contents\n" );
615 $outputPage->addParserOutput( $this->mParserOutput
);
616 # Ensure that UI elements requiring revision ID have
617 # the correct version information.
618 $outputPage->setRevisionId( $this->mPage
->getLatest() );
619 # Preload timestamp to avoid a DB hit
620 $cachedTimestamp = $this->mParserOutput
->getTimestamp();
621 if ( $cachedTimestamp !== null ) {
622 $outputPage->setRevisionTimestamp( $cachedTimestamp );
623 $this->mPage
->setTimestamp( $cachedTimestamp );
630 # This will set $this->mRevision if needed
631 $this->fetchContentObject();
633 # Are we looking at an old revision
634 if ( $oldid && $this->mRevision
) {
635 $this->setOldSubtitle( $oldid );
637 if ( !$this->showDeletedRevisionHeader() ) {
638 wfDebug( __METHOD__
. ": cannot view deleted revision\n" );
643 # Ensure that UI elements requiring revision ID have
644 # the correct version information.
645 $outputPage->setRevisionId( $this->getRevIdFetched() );
646 # Preload timestamp to avoid a DB hit
647 $outputPage->setRevisionTimestamp( $this->getTimestamp() );
649 # Pages containing custom CSS or JavaScript get special treatment
650 if ( $this->getTitle()->isCssOrJsPage() ||
$this->getTitle()->isCssJsSubpage() ) {
651 wfDebug( __METHOD__
. ": showing CSS/JS source\n" );
652 $this->showCssOrJsPage();
654 } elseif ( !Hooks
::run( 'ArticleContentViewCustom',
655 array( $this->fetchContentObject(), $this->getTitle(), $outputPage ) ) ) {
657 # Allow extensions do their own custom view for certain pages
659 } elseif ( !ContentHandler
::runLegacyHooks( 'ArticleViewCustom',
660 array( $this->fetchContentObject(), $this->getTitle(), $outputPage ) ) ) {
662 # Allow extensions do their own custom view for certain pages
667 # Run the parse, protected by a pool counter
668 wfDebug( __METHOD__
. ": doing uncached parse\n" );
670 $content = $this->getContentObject();
671 $poolArticleView = new PoolWorkArticleView( $this->getPage(), $parserOptions,
672 $this->getRevIdFetched(), $useParserCache, $content );
674 if ( !$poolArticleView->execute() ) {
675 $error = $poolArticleView->getError();
677 $outputPage->clearHTML(); // for release() errors
678 $outputPage->enableClientCache( false );
679 $outputPage->setRobotPolicy( 'noindex,nofollow' );
681 $errortext = $error->getWikiText( false, 'view-pool-error' );
682 $outputPage->addWikiText( '<div class="errorbox">' . $errortext . '</div>' );
684 # Connection or timeout error
688 $this->mParserOutput
= $poolArticleView->getParserOutput();
689 $outputPage->addParserOutput( $this->mParserOutput
);
690 if ( $content->getRedirectTarget() ) {
691 $outputPage->addSubtitle( "<span id=\"redirectsub\">" .
692 $this->getContext()->msg( 'redirectpagesub' )->parse() . "</span>" );
695 # Don't cache a dirty ParserOutput object
696 if ( $poolArticleView->getIsDirty() ) {
697 $outputPage->setSquidMaxage( 0 );
698 $outputPage->addHTML( "<!-- parser cache is expired, " .
699 "sending anyway due to pool overload-->\n" );
704 # Should be unreachable, but just in case...
710 # Get the ParserOutput actually *displayed* here.
711 # Note that $this->mParserOutput is the *current*/oldid version output.
712 $pOutput = ( $outputDone instanceof ParserOutput
)
713 ?
$outputDone // object fetched by hook
714 : $this->mParserOutput
;
716 # Adjust title for main page & pages with displaytitle
718 $this->adjustDisplayTitle( $pOutput );
721 # For the main page, overwrite the <title> element with the con-
722 # tents of 'pagetitle-view-mainpage' instead of the default (if
724 # This message always exists because it is in the i18n files
725 if ( $this->getTitle()->isMainPage() ) {
726 $msg = wfMessage( 'pagetitle-view-mainpage' )->inContentLanguage();
727 if ( !$msg->isDisabled() ) {
728 $outputPage->setHTMLTitle( $msg->title( $this->getTitle() )->text() );
732 # Check for any __NOINDEX__ tags on the page using $pOutput
733 $policy = $this->getRobotPolicy( 'view', $pOutput );
734 $outputPage->setIndexPolicy( $policy['index'] );
735 $outputPage->setFollowPolicy( $policy['follow'] );
737 $this->showViewFooter();
738 $this->mPage
->doViewUpdates( $user, $oldid );
740 $outputPage->addModules( 'mediawiki.action.view.postEdit' );
745 * Adjust title for pages with displaytitle, -{T|}- or language conversion
746 * @param ParserOutput $pOutput
748 public function adjustDisplayTitle( ParserOutput
$pOutput ) {
749 # Adjust the title if it was set by displaytitle, -{T|}- or language conversion
750 $titleText = $pOutput->getTitleText();
751 if ( strval( $titleText ) !== '' ) {
752 $this->getContext()->getOutput()->setPageTitle( $titleText );
757 * Show a diff page according to current request variables. For use within
758 * Article::view() only, other callers should use the DifferenceEngine class.
761 protected function showDiffPage() {
762 $request = $this->getContext()->getRequest();
763 $user = $this->getContext()->getUser();
764 $diff = $request->getVal( 'diff' );
765 $rcid = $request->getVal( 'rcid' );
766 $diffOnly = $request->getBool( 'diffonly', $user->getOption( 'diffonly' ) );
767 $purge = $request->getVal( 'action' ) == 'purge';
768 $unhide = $request->getInt( 'unhide' ) == 1;
769 $oldid = $this->getOldID();
771 $rev = $this->getRevisionFetched();
774 $this->getContext()->getOutput()->setPageTitle( wfMessage( 'errorpagetitle' ) );
775 $msg = $this->getContext()->msg( 'difference-missing-revision' )
779 $this->getContext()->getOutput()->addHtml( $msg );
783 $contentHandler = $rev->getContentHandler();
784 $de = $contentHandler->createDifferenceEngine(
793 // DifferenceEngine directly fetched the revision:
794 $this->mRevIdFetched
= $de->mNewid
;
795 $de->showDiffPage( $diffOnly );
797 // Run view updates for the newer revision being diffed (and shown
798 // below the diff if not $diffOnly).
799 list( $old, $new ) = $de->mapDiffPrevNext( $oldid, $diff );
800 // New can be false, convert it to 0 - this conveniently means the latest revision
801 $this->mPage
->doViewUpdates( $user, (int)$new );
805 * Show a page view for a page formatted as CSS or JavaScript. To be called by
806 * Article::view() only.
808 * This exists mostly to serve the deprecated ShowRawCssJs hook (used to customize these views).
809 * It has been replaced by the ContentGetParserOutput hook, which lets you do the same but with
812 * @param bool $showCacheHint Whether to show a message telling the user
813 * to clear the browser cache (default: true).
815 protected function showCssOrJsPage( $showCacheHint = true ) {
816 $outputPage = $this->getContext()->getOutput();
818 if ( $showCacheHint ) {
819 $dir = $this->getContext()->getLanguage()->getDir();
820 $lang = $this->getContext()->getLanguage()->getHtmlCode();
822 $outputPage->wrapWikiMsg(
823 "<div id='mw-clearyourcache' lang='$lang' dir='$dir' class='mw-content-$dir'>\n$1\n</div>",
828 $this->fetchContentObject();
830 if ( $this->mContentObject
) {
831 // Give hooks a chance to customise the output
832 if ( ContentHandler
::runLegacyHooks(
834 array( $this->mContentObject
, $this->getTitle(), $outputPage ) )
836 // If no legacy hooks ran, display the content of the parser output, including RL modules,
837 // but excluding metadata like categories and language links
838 $po = $this->mContentObject
->getParserOutput( $this->getTitle() );
839 $outputPage->addParserOutputContent( $po );
845 * Get the robot policy to be used for the current view
846 * @param string $action The action= GET parameter
847 * @param ParserOutput|null $pOutput
848 * @return array The policy that should be set
849 * @todo actions other than 'view'
851 public function getRobotPolicy( $action, $pOutput = null ) {
852 global $wgArticleRobotPolicies, $wgNamespaceRobotPolicies, $wgDefaultRobotPolicy;
854 $ns = $this->getTitle()->getNamespace();
856 # Don't index user and user talk pages for blocked users (bug 11443)
857 if ( ( $ns == NS_USER ||
$ns == NS_USER_TALK
) && !$this->getTitle()->isSubpage() ) {
858 $specificTarget = null;
860 $titleText = $this->getTitle()->getText();
861 if ( IP
::isValid( $titleText ) ) {
862 $vagueTarget = $titleText;
864 $specificTarget = $titleText;
866 if ( Block
::newFromTarget( $specificTarget, $vagueTarget ) instanceof Block
) {
868 'index' => 'noindex',
869 'follow' => 'nofollow'
874 if ( $this->mPage
->getID() === 0 ||
$this->getOldID() ) {
875 # Non-articles (special pages etc), and old revisions
877 'index' => 'noindex',
878 'follow' => 'nofollow'
880 } elseif ( $this->getContext()->getOutput()->isPrintable() ) {
881 # Discourage indexing of printable versions, but encourage following
883 'index' => 'noindex',
886 } elseif ( $this->getContext()->getRequest()->getInt( 'curid' ) ) {
887 # For ?curid=x urls, disallow indexing
889 'index' => 'noindex',
894 # Otherwise, construct the policy based on the various config variables.
895 $policy = self
::formatRobotPolicy( $wgDefaultRobotPolicy );
897 if ( isset( $wgNamespaceRobotPolicies[$ns] ) ) {
898 # Honour customised robot policies for this namespace
899 $policy = array_merge(
901 self
::formatRobotPolicy( $wgNamespaceRobotPolicies[$ns] )
904 if ( $this->getTitle()->canUseNoindex() && is_object( $pOutput ) && $pOutput->getIndexPolicy() ) {
905 # __INDEX__ and __NOINDEX__ magic words, if allowed. Incorporates
906 # a final sanity check that we have really got the parser output.
907 $policy = array_merge(
909 array( 'index' => $pOutput->getIndexPolicy() )
913 if ( isset( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] ) ) {
914 # (bug 14900) site config can override user-defined __INDEX__ or __NOINDEX__
915 $policy = array_merge(
917 self
::formatRobotPolicy( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] )
925 * Converts a String robot policy into an associative array, to allow
926 * merging of several policies using array_merge().
927 * @param array|string $policy Returns empty array on null/false/'', transparent
928 * to already-converted arrays, converts string.
929 * @return array 'index' => \<indexpolicy\>, 'follow' => \<followpolicy\>
931 public static function formatRobotPolicy( $policy ) {
932 if ( is_array( $policy ) ) {
934 } elseif ( !$policy ) {
938 $policy = explode( ',', $policy );
939 $policy = array_map( 'trim', $policy );
942 foreach ( $policy as $var ) {
943 if ( in_array( $var, array( 'index', 'noindex' ) ) ) {
944 $arr['index'] = $var;
945 } elseif ( in_array( $var, array( 'follow', 'nofollow' ) ) ) {
946 $arr['follow'] = $var;
954 * If this request is a redirect view, send "redirected from" subtitle to
955 * the output. Returns true if the header was needed, false if this is not
956 * a redirect view. Handles both local and remote redirects.
960 public function showRedirectedFromHeader() {
961 global $wgRedirectSources;
963 $context = $this->getContext();
964 $outputPage = $context->getOutput();
965 $request = $context->getRequest();
966 $rdfrom = $request->getVal( 'rdfrom' );
968 // Construct a URL for the current page view, but with the target title
969 $query = $request->getValues();
970 unset( $query['rdfrom'] );
971 unset( $query['title'] );
972 if ( $this->getTitle()->isRedirect() ) {
973 // Prevent double redirects
974 $query['redirect'] = 'no';
976 $redirectTargetUrl = $this->getTitle()->getLinkURL( $query );
978 if ( isset( $this->mRedirectedFrom
) ) {
979 // This is an internally redirected page view.
980 // We'll need a backlink to the source page for navigation.
981 if ( Hooks
::run( 'ArticleViewRedirect', array( &$this ) ) ) {
982 $redir = Linker
::linkKnown(
983 $this->mRedirectedFrom
,
986 array( 'redirect' => 'no' )
989 $outputPage->addSubtitle( "<span class=\"mw-redirectedfrom\">" .
990 $context->msg( 'redirectedfrom' )->rawParams( $redir )->parse()
993 // Add the script to update the displayed URL and
994 // set the fragment if one was specified in the redirect
995 $outputPage->addJsConfigVars( array(
996 'wgInternalRedirectTargetUrl' => $redirectTargetUrl,
998 $outputPage->addModules( 'mediawiki.action.view.redirect' );
1000 // Add a <link rel="canonical"> tag
1001 $outputPage->setCanonicalUrl( $this->getTitle()->getLocalURL() );
1003 // Tell the output object that the user arrived at this article through a redirect
1004 $outputPage->setRedirectedFrom( $this->mRedirectedFrom
);
1008 } elseif ( $rdfrom ) {
1009 // This is an externally redirected view, from some other wiki.
1010 // If it was reported from a trusted site, supply a backlink.
1011 if ( $wgRedirectSources && preg_match( $wgRedirectSources, $rdfrom ) ) {
1012 $redir = Linker
::makeExternalLink( $rdfrom, $rdfrom );
1013 $outputPage->addSubtitle( "<span class=\"mw-redirectedfrom\">" .
1014 $context->msg( 'redirectedfrom' )->rawParams( $redir )->parse()
1017 // Add the script to update the displayed URL
1018 $outputPage->addJsConfigVars( array(
1019 'wgInternalRedirectTargetUrl' => $redirectTargetUrl,
1021 $outputPage->addModules( 'mediawiki.action.view.redirect' );
1031 * Show a header specific to the namespace currently being viewed, like
1032 * [[MediaWiki:Talkpagetext]]. For Article::view().
1034 public function showNamespaceHeader() {
1035 if ( $this->getTitle()->isTalkPage() ) {
1036 if ( !wfMessage( 'talkpageheader' )->isDisabled() ) {
1037 $this->getContext()->getOutput()->wrapWikiMsg(
1038 "<div class=\"mw-talkpageheader\">\n$1\n</div>",
1039 array( 'talkpageheader' )
1046 * Show the footer section of an ordinary page view
1048 public function showViewFooter() {
1049 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
1050 if ( $this->getTitle()->getNamespace() == NS_USER_TALK
1051 && IP
::isValid( $this->getTitle()->getText() )
1053 $this->getContext()->getOutput()->addWikiMsg( 'anontalkpagetext' );
1056 // Show a footer allowing the user to patrol the shown revision or page if possible
1057 $patrolFooterShown = $this->showPatrolFooter();
1059 Hooks
::run( 'ArticleViewFooter', array( $this, $patrolFooterShown ) );
1063 * If patrol is possible, output a patrol UI box. This is called from the
1064 * footer section of ordinary page views. If patrol is not possible or not
1065 * desired, does nothing.
1066 * Side effect: When the patrol link is build, this method will call
1067 * OutputPage::preventClickjacking() and load mediawiki.page.patrol.ajax.
1071 public function showPatrolFooter() {
1072 global $wgUseNPPatrol, $wgUseRCPatrol, $wgEnableAPI, $wgEnableWriteAPI;
1074 $outputPage = $this->getContext()->getOutput();
1075 $user = $this->getContext()->getUser();
1076 $cache = wfGetMainCache();
1079 if ( !$this->getTitle()->quickUserCan( 'patrol', $user )
1080 ||
!( $wgUseRCPatrol ||
$wgUseNPPatrol )
1082 // Patrolling is disabled or the user isn't allowed to
1086 // New page patrol: Get the timestamp of the oldest revison which
1087 // the revision table holds for the given page. Then we look
1088 // whether it's within the RC lifespan and if it is, we try
1089 // to get the recentchanges row belonging to that entry
1090 // (with rc_new = 1).
1092 // Check for cached results
1093 if ( $cache->get( wfMemcKey( 'NotPatrollablePage', $this->getTitle()->getArticleID() ) ) ) {
1097 if ( $this->mRevision
1098 && !RecentChange
::isInRCLifespan( $this->mRevision
->getTimestamp(), 21600 )
1100 // The current revision is already older than what could be in the RC table
1101 // 6h tolerance because the RC might not be cleaned out regularly
1105 $dbr = wfGetDB( DB_SLAVE
);
1106 $oldestRevisionTimestamp = $dbr->selectField(
1108 'MIN( rev_timestamp )',
1109 array( 'rev_page' => $this->getTitle()->getArticleID() ),
1113 if ( $oldestRevisionTimestamp
1114 && RecentChange
::isInRCLifespan( $oldestRevisionTimestamp, 21600 )
1116 // 6h tolerance because the RC might not be cleaned out regularly
1117 $rc = RecentChange
::newFromConds(
1120 'rc_timestamp' => $oldestRevisionTimestamp,
1121 'rc_namespace' => $this->getTitle()->getNamespace(),
1122 'rc_cur_id' => $this->getTitle()->getArticleID(),
1126 array( 'USE INDEX' => 'new_name_timestamp' )
1131 // No RC entry around
1133 // Cache the information we gathered above in case we can't patrol
1134 // Don't cache in case we can patrol as this could change
1135 $cache->set( wfMemcKey( 'NotPatrollablePage', $this->getTitle()->getArticleID() ), '1' );
1140 if ( $rc->getPerformer()->equals( $user ) ) {
1141 // Don't show a patrol link for own creations. If the user could
1142 // patrol them, they already would be patrolled
1146 $rcid = $rc->getAttribute( 'rc_id' );
1148 $token = $user->getEditToken( $rcid );
1150 $outputPage->preventClickjacking();
1151 if ( $wgEnableAPI && $wgEnableWriteAPI && $user->isAllowed( 'writeapi' ) ) {
1152 $outputPage->addModules( 'mediawiki.page.patrol.ajax' );
1155 $link = Linker
::linkKnown(
1157 wfMessage( 'markaspatrolledtext' )->escaped(),
1160 'action' => 'markpatrolled',
1166 $outputPage->addHTML(
1167 "<div class='patrollink'>" .
1168 wfMessage( 'markaspatrolledlink' )->rawParams( $link )->escaped() .
1176 * Show the error text for a missing article. For articles in the MediaWiki
1177 * namespace, show the default message text. To be called from Article::view().
1179 public function showMissingArticle() {
1180 global $wgSend404Code;
1182 $outputPage = $this->getContext()->getOutput();
1183 // Whether the page is a root user page of an existing user (but not a subpage)
1184 $validUserPage = false;
1186 $title = $this->getTitle();
1188 # Show info in user (talk) namespace. Does the user exist? Is he blocked?
1189 if ( $title->getNamespace() == NS_USER
1190 ||
$title->getNamespace() == NS_USER_TALK
1192 $parts = explode( '/', $title->getText() );
1193 $rootPart = $parts[0];
1194 $user = User
::newFromName( $rootPart, false /* allow IP users*/ );
1195 $ip = User
::isIP( $rootPart );
1196 $block = Block
::newFromTarget( $user, $user );
1198 if ( !( $user && $user->isLoggedIn() ) && !$ip ) { # User does not exist
1199 $outputPage->wrapWikiMsg( "<div class=\"mw-userpage-userdoesnotexist error\">\n\$1\n</div>",
1200 array( 'userpage-userdoesnotexist-view', wfEscapeWikiText( $rootPart ) ) );
1201 } elseif ( !is_null( $block ) && $block->getType() != Block
::TYPE_AUTO
) {
1202 # Show log extract if the user is currently blocked
1203 LogEventsList
::showLogExtract(
1206 MWNamespace
::getCanonicalName( NS_USER
) . ':' . $block->getTarget(),
1210 'showIfEmpty' => false,
1212 'blocked-notice-logextract',
1213 $user->getName() # Support GENDER in notice
1217 $validUserPage = !$title->isSubpage();
1219 $validUserPage = !$title->isSubpage();
1223 Hooks
::run( 'ShowMissingArticle', array( $this ) );
1225 // Give extensions a chance to hide their (unrelated) log entries
1226 $logTypes = array( 'delete', 'move' );
1227 $conds = array( "log_action != 'revision'" );
1228 Hooks
::run( 'Article::MissingArticleConditions', array( &$conds, $logTypes ) );
1230 # Show delete and move logs
1231 LogEventsList
::showLogExtract( $outputPage, $logTypes, $title, '',
1234 'showIfEmpty' => false,
1235 'msgKey' => array( 'moveddeleted-notice' ) )
1238 if ( !$this->mPage
->hasViewableContent() && $wgSend404Code && !$validUserPage ) {
1239 // If there's no backing content, send a 404 Not Found
1240 // for better machine handling of broken links.
1241 $this->getContext()->getRequest()->response()->header( "HTTP/1.1 404 Not Found" );
1244 // Also apply the robot policy for nonexisting pages (even if a 404 was used for sanity)
1245 $policy = $this->getRobotPolicy( 'view' );
1246 $outputPage->setIndexPolicy( $policy['index'] );
1247 $outputPage->setFollowPolicy( $policy['follow'] );
1249 $hookResult = Hooks
::run( 'BeforeDisplayNoArticleText', array( $this ) );
1251 if ( !$hookResult ) {
1255 # Show error message
1256 $oldid = $this->getOldID();
1257 if ( !$oldid && $title->getNamespace() === NS_MEDIAWIKI
) {
1258 $outputPage->addParserOutput( $this->getContentObject()->getParserOutput( $title ) );
1261 $text = wfMessage( 'missing-revision', $oldid )->plain();
1262 } elseif ( $title->quickUserCan( 'create', $this->getContext()->getUser() )
1263 && $title->quickUserCan( 'edit', $this->getContext()->getUser() )
1265 $message = $this->getContext()->getUser()->isLoggedIn() ?
'noarticletext' : 'noarticletextanon';
1266 $text = wfMessage( $message )->plain();
1268 $text = wfMessage( 'noarticletext-nopermission' )->plain();
1271 $outputPage->addWikiText( "<div class='noarticletext'>\n$text\n</div>" );
1276 * If the revision requested for view is deleted, check permissions.
1277 * Send either an error message or a warning header to the output.
1279 * @return bool True if the view is allowed, false if not.
1281 public function showDeletedRevisionHeader() {
1282 if ( !$this->mRevision
->isDeleted( Revision
::DELETED_TEXT
) ) {
1287 $outputPage = $this->getContext()->getOutput();
1288 $user = $this->getContext()->getUser();
1289 // If the user is not allowed to see it...
1290 if ( !$this->mRevision
->userCan( Revision
::DELETED_TEXT
, $user ) ) {
1291 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1292 'rev-deleted-text-permission' );
1295 // If the user needs to confirm that they want to see it...
1296 } elseif ( $this->getContext()->getRequest()->getInt( 'unhide' ) != 1 ) {
1297 # Give explanation and add a link to view the revision...
1298 $oldid = intval( $this->getOldID() );
1299 $link = $this->getTitle()->getFullURL( "oldid={$oldid}&unhide=1" );
1300 $msg = $this->mRevision
->isDeleted( Revision
::DELETED_RESTRICTED
) ?
1301 'rev-suppressed-text-unhide' : 'rev-deleted-text-unhide';
1302 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1303 array( $msg, $link ) );
1306 // We are allowed to see...
1308 $msg = $this->mRevision
->isDeleted( Revision
::DELETED_RESTRICTED
) ?
1309 'rev-suppressed-text-view' : 'rev-deleted-text-view';
1310 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n", $msg );
1317 * Generate the navigation links when browsing through an article revisions
1318 * It shows the information as:
1319 * Revision as of \<date\>; view current revision
1320 * \<- Previous version | Next Version -\>
1322 * @param int $oldid Revision ID of this article revision
1324 public function setOldSubtitle( $oldid = 0 ) {
1325 if ( !Hooks
::run( 'DisplayOldSubtitle', array( &$this, &$oldid ) ) ) {
1329 $context = $this->getContext();
1330 $unhide = $context->getRequest()->getInt( 'unhide' ) == 1;
1332 # Cascade unhide param in links for easy deletion browsing
1333 $extraParams = array();
1335 $extraParams['unhide'] = 1;
1338 if ( $this->mRevision
&& $this->mRevision
->getId() === $oldid ) {
1339 $revision = $this->mRevision
;
1341 $revision = Revision
::newFromId( $oldid );
1344 $timestamp = $revision->getTimestamp();
1346 $current = ( $oldid == $this->mPage
->getLatest() );
1347 $language = $context->getLanguage();
1348 $user = $context->getUser();
1350 $td = $language->userTimeAndDate( $timestamp, $user );
1351 $tddate = $language->userDate( $timestamp, $user );
1352 $tdtime = $language->userTime( $timestamp, $user );
1354 # Show user links if allowed to see them. If hidden, then show them only if requested...
1355 $userlinks = Linker
::revUserTools( $revision, !$unhide );
1357 $infomsg = $current && !$context->msg( 'revision-info-current' )->isDisabled()
1358 ?
'revision-info-current'
1361 $outputPage = $context->getOutput();
1362 $outputPage->addSubtitle( "<div id=\"mw-{$infomsg}\">" .
1363 $context->msg( $infomsg, $td )
1364 ->rawParams( $userlinks )
1365 ->params( $revision->getID(), $tddate, $tdtime, $revision->getUserText() )
1366 ->rawParams( Linker
::revComment( $revision, true, true ) )
1372 ?
$context->msg( 'currentrevisionlink' )->escaped()
1373 : Linker
::linkKnown(
1375 $context->msg( 'currentrevisionlink' )->escaped(),
1380 ?
$context->msg( 'diff' )->escaped()
1381 : Linker
::linkKnown(
1383 $context->msg( 'diff' )->escaped(),
1390 $prev = $this->getTitle()->getPreviousRevisionID( $oldid );
1392 ? Linker
::linkKnown(
1394 $context->msg( 'previousrevision' )->escaped(),
1397 'direction' => 'prev',
1401 : $context->msg( 'previousrevision' )->escaped();
1403 ? Linker
::linkKnown(
1405 $context->msg( 'diff' )->escaped(),
1412 : $context->msg( 'diff' )->escaped();
1413 $nextlink = $current
1414 ?
$context->msg( 'nextrevision' )->escaped()
1415 : Linker
::linkKnown(
1417 $context->msg( 'nextrevision' )->escaped(),
1420 'direction' => 'next',
1424 $nextdiff = $current
1425 ?
$context->msg( 'diff' )->escaped()
1426 : Linker
::linkKnown(
1428 $context->msg( 'diff' )->escaped(),
1436 $cdel = Linker
::getRevDeleteLink( $user, $revision, $this->getTitle() );
1437 if ( $cdel !== '' ) {
1441 $outputPage->addSubtitle( "<div id=\"mw-revision-nav\">" . $cdel .
1442 $context->msg( 'revision-nav' )->rawParams(
1443 $prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff
1444 )->escaped() . "</div>" );
1448 * Return the HTML for the top of a redirect page
1450 * Chances are you should just be using the ParserOutput from
1451 * WikitextContent::getParserOutput instead of calling this for redirects.
1453 * @param Title|array $target Destination(s) to redirect
1454 * @param bool $appendSubtitle [optional]
1455 * @param bool $forceKnown Should the image be shown as a bluelink regardless of existence?
1456 * @return string Containing HTML with redirect link
1458 public function viewRedirect( $target, $appendSubtitle = true, $forceKnown = false ) {
1459 $lang = $this->getTitle()->getPageLanguage();
1460 $out = $this->getContext()->getOutput();
1461 if ( $appendSubtitle ) {
1462 $out->addSubtitle( wfMessage( 'redirectpagesub' ) );
1464 $out->addModuleStyles( 'mediawiki.action.view.redirectPage' );
1465 return static::getRedirectHeaderHtml( $lang, $target, $forceKnown );
1469 * Return the HTML for the top of a redirect page
1471 * Chances are you should just be using the ParserOutput from
1472 * WikitextContent::getParserOutput instead of calling this for redirects.
1475 * @param Language $lang
1476 * @param Title|array $target Destination(s) to redirect
1477 * @param bool $forceKnown Should the image be shown as a bluelink regardless of existence?
1478 * @return string Containing HTML with redirect link
1480 public static function getRedirectHeaderHtml( Language
$lang, $target, $forceKnown = false ) {
1481 if ( !is_array( $target ) ) {
1482 $target = array( $target );
1485 $html = '<ul class="redirectText">';
1486 /** @var Title $title */
1487 foreach ( $target as $title ) {
1488 $html .= '<li>' . Linker
::link(
1490 htmlspecialchars( $title->getFullText() ),
1492 // Automatically append redirect=no to each link, since most of them are
1493 // redirect pages themselves.
1494 array( 'redirect' => 'no' ),
1495 ( $forceKnown ?
array( 'known', 'noclasses' ) : array() )
1500 $redirectToText = wfMessage( 'redirectto' )->inLanguage( $lang )->escaped();
1502 return '<div class="redirectMsg">' .
1503 '<p>' . $redirectToText . '</p>' .
1509 * Adds help link with an icon via page indicators.
1510 * Link target can be overridden by a local message containing a wikilink:
1511 * the message key is: 'namespace-' + namespace number + '-helppage'.
1512 * @param string $to Target MediaWiki.org page title or encoded URL.
1513 * @param bool $overrideBaseUrl Whether $url is a full URL, to avoid MW.o.
1516 public function addHelpLink( $to, $overrideBaseUrl = false ) {
1518 'namespace-' . $this->getTitle()->getNamespace() . '-helppage'
1521 $out = $this->getContext()->getOutput();
1522 if ( !$msg->isDisabled() ) {
1523 $helpUrl = Skin
::makeUrl( $msg->plain() );
1524 $out->addHelpLink( $helpUrl, true );
1526 $out->addHelpLink( $to, $overrideBaseUrl );
1531 * Handle action=render
1533 public function render() {
1534 $this->getContext()->getRequest()->response()->header( 'X-Robots-Tag: noindex' );
1535 $this->getContext()->getOutput()->setArticleBodyOnly( true );
1536 $this->getContext()->getOutput()->enableSectionEditLinks( false );
1541 * action=protect handler
1543 public function protect() {
1544 $form = new ProtectionForm( $this );
1549 * action=unprotect handler (alias)
1551 public function unprotect() {
1556 * UI entry point for page deletion
1558 public function delete() {
1559 # This code desperately needs to be totally rewritten
1561 $title = $this->getTitle();
1562 $context = $this->getContext();
1563 $user = $context->getUser();
1566 $permissionErrors = $title->getUserPermissionsErrors( 'delete', $user );
1567 if ( count( $permissionErrors ) ) {
1568 throw new PermissionsError( 'delete', $permissionErrors );
1571 # Read-only check...
1572 if ( wfReadOnly() ) {
1573 throw new ReadOnlyError
;
1576 # Better double-check that it hasn't been deleted yet!
1577 $this->mPage
->loadPageData( 'fromdbmaster' );
1578 if ( !$this->mPage
->exists() ) {
1579 $deleteLogPage = new LogPage( 'delete' );
1580 $outputPage = $context->getOutput();
1581 $outputPage->setPageTitle( $context->msg( 'cannotdelete-title', $title->getPrefixedText() ) );
1582 $outputPage->wrapWikiMsg( "<div class=\"error mw-error-cannotdelete\">\n$1\n</div>",
1583 array( 'cannotdelete', wfEscapeWikiText( $title->getPrefixedText() ) )
1585 $outputPage->addHTML(
1586 Xml
::element( 'h2', null, $deleteLogPage->getName()->text() )
1588 LogEventsList
::showLogExtract(
1597 $request = $context->getRequest();
1598 $deleteReasonList = $request->getText( 'wpDeleteReasonList', 'other' );
1599 $deleteReason = $request->getText( 'wpReason' );
1601 if ( $deleteReasonList == 'other' ) {
1602 $reason = $deleteReason;
1603 } elseif ( $deleteReason != '' ) {
1604 // Entry from drop down menu + additional comment
1605 $colonseparator = wfMessage( 'colon-separator' )->inContentLanguage()->text();
1606 $reason = $deleteReasonList . $colonseparator . $deleteReason;
1608 $reason = $deleteReasonList;
1611 if ( $request->wasPosted() && $user->matchEditToken( $request->getVal( 'wpEditToken' ),
1612 array( 'delete', $this->getTitle()->getPrefixedText() ) )
1614 # Flag to hide all contents of the archived revisions
1615 $suppress = $request->getVal( 'wpSuppress' ) && $user->isAllowed( 'suppressrevision' );
1617 $this->doDelete( $reason, $suppress );
1619 WatchAction
::doWatchOrUnwatch( $request->getCheck( 'wpWatch' ), $title, $user );
1624 // Generate deletion reason
1625 $hasHistory = false;
1628 $reason = $this->generateReason( $hasHistory );
1629 } catch ( Exception
$e ) {
1630 # if a page is horribly broken, we still want to be able to
1631 # delete it. So be lenient about errors here.
1632 wfDebug( "Error while building auto delete summary: $e" );
1637 // If the page has a history, insert a warning
1638 if ( $hasHistory ) {
1639 $title = $this->getTitle();
1641 // The following can use the real revision count as this is only being shown for users
1642 // that can delete this page.
1643 // This, as a side-effect, also makes sure that the following query isn't being run for
1644 // pages with a larger history, unless the user has the 'bigdelete' right
1645 // (and is about to delete this page).
1646 $dbr = wfGetDB( DB_SLAVE
);
1647 $revisions = $edits = (int)$dbr->selectField(
1650 array( 'rev_page' => $title->getArticleID() ),
1654 // @todo FIXME: i18n issue/patchwork message
1655 $context->getOutput()->addHTML(
1656 '<strong class="mw-delete-warning-revisions">' .
1657 $context->msg( 'historywarning' )->numParams( $revisions )->parse() .
1658 $context->msg( 'word-separator' )->escaped() . Linker
::linkKnown( $title,
1659 $context->msg( 'history' )->escaped(),
1661 array( 'action' => 'history' ) ) .
1665 if ( $title->isBigDeletion() ) {
1666 global $wgDeleteRevisionsLimit;
1667 $context->getOutput()->wrapWikiMsg( "<div class='error'>\n$1\n</div>\n",
1669 'delete-warning-toobig',
1670 $context->getLanguage()->formatNum( $wgDeleteRevisionsLimit )
1676 $this->confirmDelete( $reason );
1680 * Output deletion confirmation dialog
1681 * @todo FIXME: Move to another file?
1682 * @param string $reason Prefilled reason
1684 public function confirmDelete( $reason ) {
1685 wfDebug( "Article::confirmDelete\n" );
1687 $title = $this->getTitle();
1688 $ctx = $this->getContext();
1689 $outputPage = $ctx->getOutput();
1690 $useMediaWikiUIEverywhere = $ctx->getConfig()->get( 'UseMediaWikiUIEverywhere' );
1691 $outputPage->setPageTitle( wfMessage( 'delete-confirm', $title->getPrefixedText() ) );
1692 $outputPage->addBacklinkSubtitle( $title );
1693 $outputPage->setRobotPolicy( 'noindex,nofollow' );
1694 $backlinkCache = $title->getBacklinkCache();
1695 if ( $backlinkCache->hasLinks( 'pagelinks' ) ||
$backlinkCache->hasLinks( 'templatelinks' ) ) {
1696 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1697 'deleting-backlinks-warning' );
1699 $outputPage->addWikiMsg( 'confirmdeletetext' );
1701 Hooks
::run( 'ArticleConfirmDelete', array( $this, $outputPage, &$reason ) );
1703 $user = $this->getContext()->getUser();
1705 if ( $user->isAllowed( 'suppressrevision' ) ) {
1706 $suppress = Html
::openElement( 'div', array( 'id' => 'wpDeleteSuppressRow' ) ) .
1708 Xml
::checkLabel( wfMessage( 'revdelete-suppress' )->text(),
1709 'wpSuppress', 'wpSuppress', false, array( 'tabindex' => '4' ) ) .
1711 Html
::closeElement( 'div' );
1715 $checkWatch = $user->getBoolOption( 'watchdeletion' ) ||
$user->isWatched( $title );
1717 $form = Html
::openElement( 'form', array( 'method' => 'post',
1718 'action' => $title->getLocalURL( 'action=delete' ), 'id' => 'deleteconfirm' ) ) .
1719 Html
::openElement( 'fieldset', array( 'id' => 'mw-delete-table' ) ) .
1720 Html
::element( 'legend', null, wfMessage( 'delete-legend' )->text() ) .
1721 Html
::openElement( 'div', array( 'id' => 'mw-deleteconfirm-table' ) ) .
1722 Html
::openElement( 'div', array( 'id' => 'wpDeleteReasonListRow' ) ) .
1723 Html
::label( wfMessage( 'deletecomment' )->text(), 'wpDeleteReasonList' ) .
1726 'wpDeleteReasonList',
1727 wfMessage( 'deletereason-dropdown' )->inContentLanguage()->text(),
1728 wfMessage( 'deletereasonotherlist' )->inContentLanguage()->text(),
1733 Html
::closeElement( 'div' ) .
1734 Html
::openElement( 'div', array( 'id' => 'wpDeleteReasonRow' ) ) .
1735 Html
::label( wfMessage( 'deleteotherreason' )->text(), 'wpReason' ) .
1737 Html
::input( 'wpReason', $reason, 'text', array(
1739 'maxlength' => '255',
1742 'class' => 'mw-ui-input-inline',
1745 Html
::closeElement( 'div' );
1747 # Disallow watching if user is not logged in
1748 if ( $user->isLoggedIn() ) {
1750 Xml
::checkLabel( wfMessage( 'watchthis' )->text(),
1751 'wpWatch', 'wpWatch', $checkWatch, array( 'tabindex' => '3' ) );
1755 Html
::openElement( 'div' ) .
1757 Xml
::submitButton( wfMessage( 'deletepage' )->text(),
1759 'name' => 'wpConfirmB',
1760 'id' => 'wpConfirmB',
1762 'class' => $useMediaWikiUIEverywhere ?
'mw-ui-button mw-ui-destructive' : '',
1765 Html
::closeElement( 'div' ) .
1766 Html
::closeElement( 'div' ) .
1767 Xml
::closeElement( 'fieldset' ) .
1770 $user->getEditToken( array( 'delete', $title->getPrefixedText() ) )
1772 Xml
::closeElement( 'form' );
1774 if ( $user->isAllowed( 'editinterface' ) ) {
1775 $dropdownTitle = Title
::makeTitle( NS_MEDIAWIKI
, 'Deletereason-dropdown' );
1776 $link = Linker
::link(
1778 wfMessage( 'delete-edit-reasonlist' )->escaped(),
1780 array( 'action' => 'edit' )
1782 $form .= '<p class="mw-delete-editreasons">' . $link . '</p>';
1785 $outputPage->addHTML( $form );
1787 $deleteLogPage = new LogPage( 'delete' );
1788 $outputPage->addHTML( Xml
::element( 'h2', null, $deleteLogPage->getName()->text() ) );
1789 LogEventsList
::showLogExtract( $outputPage, 'delete', $title );
1793 * Perform a deletion and output success or failure messages
1794 * @param string $reason
1795 * @param bool $suppress
1797 public function doDelete( $reason, $suppress = false ) {
1799 $outputPage = $this->getContext()->getOutput();
1800 $status = $this->mPage
->doDeleteArticleReal( $reason, $suppress, 0, true, $error );
1802 if ( $status->isGood() ) {
1803 $deleted = $this->getTitle()->getPrefixedText();
1805 $outputPage->setPageTitle( wfMessage( 'actioncomplete' ) );
1806 $outputPage->setRobotPolicy( 'noindex,nofollow' );
1808 $loglink = '[[Special:Log/delete|' . wfMessage( 'deletionlog' )->text() . ']]';
1810 $outputPage->addWikiMsg( 'deletedtext', wfEscapeWikiText( $deleted ), $loglink );
1812 Hooks
::run( 'ArticleDeleteAfterSuccess', array( $this->getTitle(), $outputPage ) );
1814 $outputPage->returnToMain( false );
1816 $outputPage->setPageTitle(
1817 wfMessage( 'cannotdelete-title',
1818 $this->getTitle()->getPrefixedText() )
1821 if ( $error == '' ) {
1822 $outputPage->addWikiText(
1823 "<div class=\"error mw-error-cannotdelete\">\n" . $status->getWikiText() . "\n</div>"
1825 $deleteLogPage = new LogPage( 'delete' );
1826 $outputPage->addHTML( Xml
::element( 'h2', null, $deleteLogPage->getName()->text() ) );
1828 LogEventsList
::showLogExtract(
1834 $outputPage->addHTML( $error );
1839 /* Caching functions */
1842 * checkLastModified returns true if it has taken care of all
1843 * output to the client that is necessary for this request.
1844 * (that is, it has sent a cached version of the page)
1846 * @return bool True if cached version send, false otherwise
1848 protected function tryFileCache() {
1849 static $called = false;
1852 wfDebug( "Article::tryFileCache(): called twice!?\n" );
1857 if ( $this->isFileCacheable() ) {
1858 $cache = new HTMLFileCache( $this->getTitle(), 'view' );
1859 if ( $cache->isCacheGood( $this->mPage
->getTouched() ) ) {
1860 wfDebug( "Article::tryFileCache(): about to load file\n" );
1861 $cache->loadFromFileCache( $this->getContext() );
1864 wfDebug( "Article::tryFileCache(): starting buffer\n" );
1865 ob_start( array( &$cache, 'saveToFileCache' ) );
1868 wfDebug( "Article::tryFileCache(): not cacheable\n" );
1875 * Check if the page can be cached
1878 public function isFileCacheable() {
1881 if ( HTMLFileCache
::useFileCache( $this->getContext() ) ) {
1882 $cacheable = $this->mPage
->getID()
1883 && !$this->mRedirectedFrom
&& !$this->getTitle()->isRedirect();
1884 // Extension may have reason to disable file caching on some pages.
1886 $cacheable = Hooks
::run( 'IsFileCacheable', array( &$this ) );
1896 * Lightweight method to get the parser output for a page, checking the parser cache
1897 * and so on. Doesn't consider most of the stuff that WikiPage::view is forced to
1898 * consider, so it's not appropriate to use there.
1900 * @since 1.16 (r52326) for LiquidThreads
1902 * @param int|null $oldid Revision ID or null
1903 * @param User $user The relevant user
1904 * @return ParserOutput|bool ParserOutput or false if the given revision ID is not found
1906 public function getParserOutput( $oldid = null, User
$user = null ) {
1907 //XXX: bypasses mParserOptions and thus setParserOptions()
1909 if ( $user === null ) {
1910 $parserOptions = $this->getParserOptions();
1912 $parserOptions = $this->mPage
->makeParserOptions( $user );
1915 return $this->mPage
->getParserOutput( $parserOptions, $oldid );
1919 * Override the ParserOptions used to render the primary article wikitext.
1921 * @param ParserOptions $options
1922 * @throws MWException If the parser options where already initialized.
1924 public function setParserOptions( ParserOptions
$options ) {
1925 if ( $this->mParserOptions
) {
1926 throw new MWException( "can't change parser options after they have already been set" );
1929 // clone, so if $options is modified later, it doesn't confuse the parser cache.
1930 $this->mParserOptions
= clone $options;
1934 * Get parser options suitable for rendering the primary article wikitext
1935 * @return ParserOptions
1937 public function getParserOptions() {
1938 if ( !$this->mParserOptions
) {
1939 $this->mParserOptions
= $this->mPage
->makeParserOptions( $this->getContext() );
1941 // Clone to allow modifications of the return value without affecting cache
1942 return clone $this->mParserOptions
;
1946 * Sets the context this Article is executed in
1948 * @param IContextSource $context
1951 public function setContext( $context ) {
1952 $this->mContext
= $context;
1956 * Gets the context this Article is executed in
1958 * @return IContextSource
1961 public function getContext() {
1962 if ( $this->mContext
instanceof IContextSource
) {
1963 return $this->mContext
;
1965 wfDebug( __METHOD__
. " called and \$mContext is null. " .
1966 "Return RequestContext::getMain(); for sanity\n" );
1967 return RequestContext
::getMain();
1972 * Use PHP's magic __get handler to handle accessing of
1973 * raw WikiPage fields for backwards compatibility.
1975 * @param string $fname Field name
1978 public function __get( $fname ) {
1979 if ( property_exists( $this->mPage
, $fname ) ) {
1980 #wfWarn( "Access to raw $fname field " . __CLASS__ );
1981 return $this->mPage
->$fname;
1983 trigger_error( 'Inaccessible property via __get(): ' . $fname, E_USER_NOTICE
);
1987 * Use PHP's magic __set handler to handle setting of
1988 * raw WikiPage fields for backwards compatibility.
1990 * @param string $fname Field name
1991 * @param mixed $fvalue New value
1993 public function __set( $fname, $fvalue ) {
1994 if ( property_exists( $this->mPage
, $fname ) ) {
1995 #wfWarn( "Access to raw $fname field of " . __CLASS__ );
1996 $this->mPage
->$fname = $fvalue;
1997 // Note: extensions may want to toss on new fields
1998 } elseif ( !in_array( $fname, array( 'mContext', 'mPage' ) ) ) {
1999 $this->mPage
->$fname = $fvalue;
2001 trigger_error( 'Inaccessible property via __set(): ' . $fname, E_USER_NOTICE
);
2006 * Use PHP's magic __call handler to transform instance calls to
2007 * WikiPage functions for backwards compatibility.
2009 * @param string $fname Name of called method
2010 * @param array $args Arguments to the method
2013 public function __call( $fname, $args ) {
2014 if ( is_callable( array( $this->mPage
, $fname ) ) ) {
2015 #wfWarn( "Call to " . __CLASS__ . "::$fname; please use WikiPage instead" );
2016 return call_user_func_array( array( $this->mPage
, $fname ), $args );
2018 trigger_error( 'Inaccessible function via __call(): ' . $fname, E_USER_ERROR
);
2021 // ****** B/C functions to work-around PHP silliness with __call and references ****** //
2024 * @param array $limit
2025 * @param array $expiry
2026 * @param bool $cascade
2027 * @param string $reason
2031 public function doUpdateRestrictions( array $limit, array $expiry, &$cascade,
2034 return $this->mPage
->doUpdateRestrictions( $limit, $expiry, $cascade, $reason, $user );
2038 * @param array $limit
2039 * @param string $reason
2040 * @param int $cascade
2041 * @param array $expiry
2044 public function updateRestrictions( $limit = array(), $reason = '',
2045 &$cascade = 0, $expiry = array()
2047 return $this->mPage
->doUpdateRestrictions(
2052 $this->getContext()->getUser()
2057 * @param string $reason
2058 * @param bool $suppress
2060 * @param bool $commit
2061 * @param string $error
2064 public function doDeleteArticle( $reason, $suppress = false, $id = 0,
2065 $commit = true, &$error = ''
2067 return $this->mPage
->doDeleteArticle( $reason, $suppress, $id, $commit, $error );
2071 * @param string $fromP
2072 * @param string $summary
2073 * @param string $token
2075 * @param array $resultDetails
2076 * @param User|null $user
2079 public function doRollback( $fromP, $summary, $token, $bot, &$resultDetails, User
$user = null ) {
2080 $user = is_null( $user ) ?
$this->getContext()->getUser() : $user;
2081 return $this->mPage
->doRollback( $fromP, $summary, $token, $bot, $resultDetails, $user );
2085 * @param string $fromP
2086 * @param string $summary
2088 * @param array $resultDetails
2089 * @param User|null $guser
2092 public function commitRollback( $fromP, $summary, $bot, &$resultDetails, User
$guser = null ) {
2093 $guser = is_null( $guser ) ?
$this->getContext()->getUser() : $guser;
2094 return $this->mPage
->commitRollback( $fromP, $summary, $bot, $resultDetails, $guser );
2098 * @param bool $hasHistory
2101 public function generateReason( &$hasHistory ) {
2102 $title = $this->mPage
->getTitle();
2103 $handler = ContentHandler
::getForTitle( $title );
2104 return $handler->getAutoDeleteReason( $title, $hasHistory );
2107 // ****** B/C functions for static methods ( __callStatic is PHP>=5.3 ) ****** //
2112 * @deprecated since 1.24, use WikiPage::selectFields() instead
2114 public static function selectFields() {
2115 wfDeprecated( __METHOD__
, '1.24' );
2116 return WikiPage
::selectFields();
2120 * @param Title $title
2122 * @deprecated since 1.24, use WikiPage::onArticleCreate() instead
2124 public static function onArticleCreate( $title ) {
2125 wfDeprecated( __METHOD__
, '1.24' );
2126 WikiPage
::onArticleCreate( $title );
2130 * @param Title $title
2132 * @deprecated since 1.24, use WikiPage::onArticleDelete() instead
2134 public static function onArticleDelete( $title ) {
2135 wfDeprecated( __METHOD__
, '1.24' );
2136 WikiPage
::onArticleDelete( $title );
2140 * @param Title $title
2142 * @deprecated since 1.24, use WikiPage::onArticleEdit() instead
2144 public static function onArticleEdit( $title ) {
2145 wfDeprecated( __METHOD__
, '1.24' );
2146 WikiPage
::onArticleEdit( $title );
2150 * @param string $oldtext
2151 * @param string $newtext
2154 * @deprecated since 1.21, use ContentHandler::getAutosummary() instead
2156 public static function getAutosummary( $oldtext, $newtext, $flags ) {
2157 return WikiPage
::getAutosummary( $oldtext, $newtext, $flags );