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
extends 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 * Content of the revision we are working on
61 * @var string $mContent
66 * Is the content ($mContent) already loaded?
67 * @var bool $mContentLoaded
69 var $mContentLoaded = false; // !<
72 * The oldid of the article that is to be shown, 0 for the
74 * @var int|null $mOldId
79 * Title from which we were redirected here
80 * @var Title $mRedirectedFrom
82 var $mRedirectedFrom = null;
85 * URL to redirect to or false if none
86 * @var string|false $mRedirectUrl
88 var $mRedirectUrl = false; // !<
91 * Revision ID of revision we are working on
92 * @var int $mRevIdFetched
94 var $mRevIdFetched = 0; // !<
97 * Revision we are working on
98 * @var Revision $mRevision
100 var $mRevision = null;
103 * ParserOutput object
104 * @var ParserOutput $mParserOutput
111 * Constructor and clear the article
112 * @param $title Title Reference to a Title object.
113 * @param $oldId Integer revision ID, null to fetch from request, zero for current
115 public function __construct( Title
$title, $oldId = null ) {
116 $this->mOldId
= $oldId;
117 $this->mPage
= $this->newPage( $title );
121 * @param $title Title
124 protected function newPage( Title
$title ) {
125 return new WikiPage( $title );
129 * Constructor from a page id
130 * @param $id Int article ID to load
131 * @return Article|null
133 public static function newFromID( $id ) {
134 $t = Title
::newFromID( $id );
135 # @todo FIXME: Doesn't inherit right
136 return $t == null ?
null : new self( $t );
137 # return $t == null ? null : new static( $t ); // PHP 5.3
141 * Create an Article object of the appropriate class for the given page.
143 * @param $title Title
144 * @param $context IContextSource
145 * @return Article object
147 public static function newFromTitle( $title, IContextSource
$context ) {
148 if ( NS_MEDIA
== $title->getNamespace() ) {
149 // FIXME: where should this go?
150 $title = Title
::makeTitle( NS_FILE
, $title->getDBkey() );
154 wfRunHooks( 'ArticleFromTitle', array( &$title, &$page ) );
156 switch( $title->getNamespace() ) {
158 $page = new ImagePage( $title );
161 $page = new CategoryPage( $title );
164 $page = new Article( $title );
167 $page->setContext( $context );
173 * Create an Article object of the appropriate class for the given page.
175 * @param $page WikiPage
176 * @param $context IContextSource
177 * @return Article object
179 public static function newFromWikiPage( WikiPage
$page, IContextSource
$context ) {
180 $article = self
::newFromTitle( $page->getTitle(), $context );
181 $article->mPage
= $page; // override to keep process cached vars
186 * Tell the page view functions that this view was redirected
187 * from another page on the wiki.
188 * @param $from Title object.
190 public function setRedirectedFrom( Title
$from ) {
191 $this->mRedirectedFrom
= $from;
195 * Get the title object of the article
197 * @return Title object of this page
199 public function getTitle() {
200 return $this->mPage
->getTitle();
204 * Get the WikiPage object of this instance
209 public function getPage() {
216 public function clear() {
217 $this->mContentLoaded
= false;
219 $this->mRedirectedFrom
= null; # Title object if set
220 $this->mRevIdFetched
= 0;
221 $this->mRedirectUrl
= false;
223 $this->mPage
->clear();
227 * Note that getContent/loadContent do not follow redirects anymore.
228 * If you need to fetch redirectable content easily, try
229 * the shortcut in WikiPage::getRedirectTarget()
231 * This function has side effects! Do not use this function if you
232 * only want the real revision text if any.
234 * @return string Return the text of this revision
236 public function getContent() {
237 wfProfileIn( __METHOD__
);
239 if ( $this->mPage
->getID() === 0 ) {
240 # If this is a MediaWiki:x message, then load the messages
241 # and return the message value for x.
242 if ( $this->getTitle()->getNamespace() == NS_MEDIAWIKI
) {
243 $text = $this->getTitle()->getDefaultMessageText();
244 if ( $text === false ) {
248 $message = $this->getContext()->getUser()->isLoggedIn() ?
'noarticletext' : 'noarticletextanon';
249 $text = wfMessage( $message )->text();
251 wfProfileOut( __METHOD__
);
255 $this->fetchContent();
256 wfProfileOut( __METHOD__
);
258 return $this->mContent
;
263 * @return int The oldid of the article that is to be shown, 0 for the
266 public function getOldID() {
267 if ( is_null( $this->mOldId
) ) {
268 $this->mOldId
= $this->getOldIDFromRequest();
271 return $this->mOldId
;
275 * Sets $this->mRedirectUrl to a correct URL if the query parameters are incorrect
277 * @return int The old id for the request
279 public function getOldIDFromRequest() {
280 $this->mRedirectUrl
= false;
282 $request = $this->getContext()->getRequest();
283 $oldid = $request->getIntOrNull( 'oldid' );
285 if ( $oldid === null ) {
289 if ( $oldid !== 0 ) {
290 # Load the given revision and check whether the page is another one.
291 # In that case, update this instance to reflect the change.
292 if ( $oldid === $this->mPage
->getLatest() ) {
293 $this->mRevision
= $this->mPage
->getRevision();
295 $this->mRevision
= Revision
::newFromId( $oldid );
296 if ( $this->mRevision
!== null ) {
297 // Revision title doesn't match the page title given?
298 if ( $this->mPage
->getID() != $this->mRevision
->getPage() ) {
299 $function = array( get_class( $this->mPage
), 'newFromID' );
300 $this->mPage
= call_user_func( $function, $this->mRevision
->getPage() );
306 if ( $request->getVal( 'direction' ) == 'next' ) {
307 $nextid = $this->getTitle()->getNextRevisionID( $oldid );
310 $this->mRevision
= null;
312 $this->mRedirectUrl
= $this->getTitle()->getFullURL( 'redirect=no' );
314 } elseif ( $request->getVal( 'direction' ) == 'prev' ) {
315 $previd = $this->getTitle()->getPreviousRevisionID( $oldid );
318 $this->mRevision
= null;
326 * Load the revision (including text) into this object
328 * @deprecated in 1.19; use fetchContent()
330 function loadContent() {
331 wfDeprecated( __METHOD__
, '1.19' );
332 $this->fetchContent();
336 * Get text of an article from database
337 * Does *NOT* follow redirects.
339 * @return mixed string containing article contents, or false if null
341 function fetchContent() {
342 if ( $this->mContentLoaded
) {
343 return $this->mContent
;
346 wfProfileIn( __METHOD__
);
348 $this->mContentLoaded
= true;
350 $oldid = $this->getOldID();
352 # Pre-fill content with error message so that if something
353 # fails we'll have something telling us what we intended.
354 $this->mContent
= wfMessage( 'missing-revision', $oldid )->plain();
357 # $this->mRevision might already be fetched by getOldIDFromRequest()
358 if ( !$this->mRevision
) {
359 $this->mRevision
= Revision
::newFromId( $oldid );
360 if ( !$this->mRevision
) {
361 wfDebug( __METHOD__
. " failed to retrieve specified revision, id $oldid\n" );
362 wfProfileOut( __METHOD__
);
367 if ( !$this->mPage
->getLatest() ) {
368 wfDebug( __METHOD__
. " failed to find page data for title " . $this->getTitle()->getPrefixedText() . "\n" );
369 wfProfileOut( __METHOD__
);
373 $this->mRevision
= $this->mPage
->getRevision();
374 if ( !$this->mRevision
) {
375 wfDebug( __METHOD__
. " failed to retrieve current page, rev_id " . $this->mPage
->getLatest() . "\n" );
376 wfProfileOut( __METHOD__
);
381 // @todo FIXME: Horrible, horrible! This content-loading interface just plain sucks.
382 // We should instead work with the Revision object when we need it...
383 $this->mContent
= $this->mRevision
->getText( Revision
::FOR_THIS_USER
); // Loads if user is allowed
384 $this->mRevIdFetched
= $this->mRevision
->getId();
386 wfRunHooks( 'ArticleAfterFetchContent', array( &$this, &$this->mContent
) );
388 wfProfileOut( __METHOD__
);
390 return $this->mContent
;
395 * @deprecated since 1.18
397 public function forUpdate() {
398 wfDeprecated( __METHOD__
, '1.18' );
402 * Returns true if the currently-referenced revision is the current edit
403 * to this page (and it exists).
406 public function isCurrent() {
407 # If no oldid, this is the current version.
408 if ( $this->getOldID() == 0 ) {
412 return $this->mPage
->exists() && $this->mRevision
&& $this->mRevision
->isCurrent();
416 * Get the fetched Revision object depending on request parameters or null
420 * @return Revision|null
422 public function getRevisionFetched() {
423 $this->fetchContent();
425 return $this->mRevision
;
429 * Use this to fetch the rev ID used on page views
431 * @return int revision ID of last article revision
433 public function getRevIdFetched() {
434 if ( $this->mRevIdFetched
) {
435 return $this->mRevIdFetched
;
437 return $this->mPage
->getLatest();
442 * This is the default action of the index.php entry point: just view the
443 * page of the given title.
445 public function view() {
446 global $wgParser, $wgUseFileCache, $wgUseETag, $wgDebugToolbar;
448 wfProfileIn( __METHOD__
);
450 # Get variables from query string
451 # As side effect this will load the revision and update the title
452 # in a revision ID is passed in the request, so this should remain
453 # the first call of this method even if $oldid is used way below.
454 $oldid = $this->getOldID();
456 $user = $this->getContext()->getUser();
457 # Another whitelist check in case getOldID() is altering the title
458 $permErrors = $this->getTitle()->getUserPermissionsErrors( 'read', $user );
459 if ( count( $permErrors ) ) {
460 wfDebug( __METHOD__
. ": denied on secondary read check\n" );
461 wfProfileOut( __METHOD__
);
462 throw new PermissionsError( 'read', $permErrors );
465 $outputPage = $this->getContext()->getOutput();
466 # getOldID() may as well want us to redirect somewhere else
467 if ( $this->mRedirectUrl
) {
468 $outputPage->redirect( $this->mRedirectUrl
);
469 wfDebug( __METHOD__
. ": redirecting due to oldid\n" );
470 wfProfileOut( __METHOD__
);
475 # If we got diff in the query, we want to see a diff page instead of the article.
476 if ( $this->getContext()->getRequest()->getCheck( 'diff' ) ) {
477 wfDebug( __METHOD__
. ": showing diff page\n" );
478 $this->showDiffPage();
479 wfProfileOut( __METHOD__
);
484 # Set page title (may be overridden by DISPLAYTITLE)
485 $outputPage->setPageTitle( $this->getTitle()->getPrefixedText() );
487 $outputPage->setArticleFlag( true );
488 # Allow frames by default
489 $outputPage->allowClickjacking();
491 $parserCache = ParserCache
::singleton();
493 $parserOptions = $this->getParserOptions();
494 # Render printable version, use printable version cache
495 if ( $outputPage->isPrintable() ) {
496 $parserOptions->setIsPrintable( true );
497 $parserOptions->setEditSection( false );
498 } elseif ( !$this->isCurrent() ||
!$this->getTitle()->quickUserCan( 'edit', $user ) ) {
499 $parserOptions->setEditSection( false );
502 # Try client and file cache
503 if ( !$wgDebugToolbar && $oldid === 0 && $this->mPage
->checkTouched() ) {
505 $outputPage->setETag( $parserCache->getETag( $this, $parserOptions ) );
508 # Is it client cached?
509 if ( $outputPage->checkLastModified( $this->mPage
->getTouched() ) ) {
510 wfDebug( __METHOD__
. ": done 304\n" );
511 wfProfileOut( __METHOD__
);
515 } elseif ( $wgUseFileCache && $this->tryFileCache() ) {
516 wfDebug( __METHOD__
. ": done file cache\n" );
517 # tell wgOut that output is taken care of
518 $outputPage->disable();
519 $this->mPage
->doViewUpdates( $user );
520 wfProfileOut( __METHOD__
);
526 # Should the parser cache be used?
527 $useParserCache = $this->mPage
->isParserCacheUsed( $parserOptions, $oldid );
528 wfDebug( 'Article::view using parser cache: ' . ( $useParserCache ?
'yes' : 'no' ) . "\n" );
529 if ( $user->getStubThreshold() ) {
530 wfIncrStats( 'pcache_miss_stub' );
533 $this->showRedirectedFromHeader();
534 $this->showNamespaceHeader();
536 # Iterate through the possible ways of constructing the output text.
537 # Keep going until $outputDone is set, or we run out of things to do.
540 $this->mParserOutput
= false;
542 while ( !$outputDone && ++
$pass ) {
545 wfRunHooks( 'ArticleViewHeader', array( &$this, &$outputDone, &$useParserCache ) );
548 # Early abort if the page doesn't exist
549 if ( !$this->mPage
->exists() ) {
550 wfDebug( __METHOD__
. ": showing missing article\n" );
551 $this->showMissingArticle();
552 wfProfileOut( __METHOD__
);
556 # Try the parser cache
557 if ( $useParserCache ) {
558 $this->mParserOutput
= $parserCache->get( $this, $parserOptions );
560 if ( $this->mParserOutput
!== false ) {
562 wfDebug( __METHOD__
. ": showing parser cache contents for current rev permalink\n" );
563 $this->setOldSubtitle( $oldid );
565 wfDebug( __METHOD__
. ": showing parser cache contents\n" );
567 $outputPage->addParserOutput( $this->mParserOutput
);
568 # Ensure that UI elements requiring revision ID have
569 # the correct version information.
570 $outputPage->setRevisionId( $this->mPage
->getLatest() );
571 # Preload timestamp to avoid a DB hit
572 $cachedTimestamp = $this->mParserOutput
->getTimestamp();
573 if ( $cachedTimestamp !== null ) {
574 $outputPage->setRevisionTimestamp( $cachedTimestamp );
575 $this->mPage
->setTimestamp( $cachedTimestamp );
582 # This will set $this->mRevision if needed
583 $this->fetchContent();
585 # Are we looking at an old revision
586 if ( $oldid && $this->mRevision
) {
587 $this->setOldSubtitle( $oldid );
589 if ( !$this->showDeletedRevisionHeader() ) {
590 wfDebug( __METHOD__
. ": cannot view deleted revision\n" );
591 wfProfileOut( __METHOD__
);
596 # Ensure that UI elements requiring revision ID have
597 # the correct version information.
598 $outputPage->setRevisionId( $this->getRevIdFetched() );
599 # Preload timestamp to avoid a DB hit
600 $outputPage->setRevisionTimestamp( $this->getTimestamp() );
602 # Pages containing custom CSS or JavaScript get special treatment
603 if ( $this->getTitle()->isCssOrJsPage() ||
$this->getTitle()->isCssJsSubpage() ) {
604 wfDebug( __METHOD__
. ": showing CSS/JS source\n" );
605 $this->showCssOrJsPage();
607 } elseif( !wfRunHooks( 'ArticleViewCustom', array( $this->mContent
, $this->getTitle(), $outputPage ) ) ) {
608 # Allow extensions do their own custom view for certain pages
611 $text = $this->getContent();
612 $rt = Title
::newFromRedirectArray( $text );
614 wfDebug( __METHOD__
. ": showing redirect=no page\n" );
615 # Viewing a redirect page (e.g. with parameter redirect=no)
616 $outputPage->addHTML( $this->viewRedirect( $rt ) );
617 # Parse just to get categories, displaytitle, etc.
618 $this->mParserOutput
= $wgParser->parse( $text, $this->getTitle(), $parserOptions );
619 $outputPage->addParserOutputNoText( $this->mParserOutput
);
625 # Run the parse, protected by a pool counter
626 wfDebug( __METHOD__
. ": doing uncached parse\n" );
628 $poolArticleView = new PoolWorkArticleView( $this, $parserOptions,
629 $this->getRevIdFetched(), $useParserCache, $this->getContent() );
631 if ( !$poolArticleView->execute() ) {
632 $error = $poolArticleView->getError();
634 $outputPage->clearHTML(); // for release() errors
635 $outputPage->enableClientCache( false );
636 $outputPage->setRobotPolicy( 'noindex,nofollow' );
638 $errortext = $error->getWikiText( false, 'view-pool-error' );
639 $outputPage->addWikiText( '<div class="errorbox">' . $errortext . '</div>' );
641 # Connection or timeout error
642 wfProfileOut( __METHOD__
);
646 $this->mParserOutput
= $poolArticleView->getParserOutput();
647 $outputPage->addParserOutput( $this->mParserOutput
);
649 # Don't cache a dirty ParserOutput object
650 if ( $poolArticleView->getIsDirty() ) {
651 $outputPage->setSquidMaxage( 0 );
652 $outputPage->addHTML( "<!-- parser cache is expired, sending anyway due to pool overload-->\n" );
657 # Should be unreachable, but just in case...
663 # Get the ParserOutput actually *displayed* here.
664 # Note that $this->mParserOutput is the *current* version output.
665 $pOutput = ( $outputDone instanceof ParserOutput
)
666 ?
$outputDone // object fetched by hook
667 : $this->mParserOutput
;
669 # Adjust title for main page & pages with displaytitle
671 $this->adjustDisplayTitle( $pOutput );
674 # For the main page, overwrite the <title> element with the con-
675 # tents of 'pagetitle-view-mainpage' instead of the default (if
677 # This message always exists because it is in the i18n files
678 if ( $this->getTitle()->isMainPage() ) {
679 $msg = wfMessage( 'pagetitle-view-mainpage' )->inContentLanguage();
680 if ( !$msg->isDisabled() ) {
681 $outputPage->setHTMLTitle( $msg->title( $this->getTitle() )->text() );
685 # Check for any __NOINDEX__ tags on the page using $pOutput
686 $policy = $this->getRobotPolicy( 'view', $pOutput );
687 $outputPage->setIndexPolicy( $policy['index'] );
688 $outputPage->setFollowPolicy( $policy['follow'] );
690 $this->showViewFooter();
691 $this->mPage
->doViewUpdates( $user );
693 wfProfileOut( __METHOD__
);
697 * Adjust title for pages with displaytitle, -{T|}- or language conversion
698 * @param $pOutput ParserOutput
700 public function adjustDisplayTitle( ParserOutput
$pOutput ) {
701 # Adjust the title if it was set by displaytitle, -{T|}- or language conversion
702 $titleText = $pOutput->getTitleText();
703 if ( strval( $titleText ) !== '' ) {
704 $this->getContext()->getOutput()->setPageTitle( $titleText );
709 * Show a diff page according to current request variables. For use within
710 * Article::view() only, other callers should use the DifferenceEngine class.
712 public function showDiffPage() {
713 $request = $this->getContext()->getRequest();
714 $user = $this->getContext()->getUser();
715 $diff = $request->getVal( 'diff' );
716 $rcid = $request->getVal( 'rcid' );
717 $diffOnly = $request->getBool( 'diffonly', $user->getOption( 'diffonly' ) );
718 $purge = $request->getVal( 'action' ) == 'purge';
719 $unhide = $request->getInt( 'unhide' ) == 1;
720 $oldid = $this->getOldID();
722 $de = new DifferenceEngine( $this->getContext(), $oldid, $diff, $rcid, $purge, $unhide );
723 // DifferenceEngine directly fetched the revision:
724 $this->mRevIdFetched
= $de->mNewid
;
725 $de->showDiffPage( $diffOnly );
727 if ( $diff == 0 ||
$diff == $this->mPage
->getLatest() ) {
728 # Run view updates for current revision only
729 $this->mPage
->doViewUpdates( $user );
734 * Show a page view for a page formatted as CSS or JavaScript. To be called by
735 * Article::view() only.
737 * This is hooked by SyntaxHighlight_GeSHi to do syntax highlighting of these
740 protected function showCssOrJsPage() {
741 $dir = $this->getContext()->getLanguage()->getDir();
742 $lang = $this->getContext()->getLanguage()->getCode();
744 $outputPage = $this->getContext()->getOutput();
745 $outputPage->wrapWikiMsg( "<div id='mw-clearyourcache' lang='$lang' dir='$dir' class='mw-content-$dir'>\n$1\n</div>",
748 // Give hooks a chance to customise the output
749 if ( wfRunHooks( 'ShowRawCssJs', array( $this->mContent
, $this->getTitle(), $outputPage ) ) ) {
750 // Wrap the whole lot in a <pre> and don't parse
752 preg_match( '!\.(css|js)$!u', $this->getTitle()->getText(), $m );
753 $outputPage->addHTML( "<pre class=\"mw-code mw-{$m[1]}\" dir=\"ltr\">\n" );
754 $outputPage->addHTML( htmlspecialchars( $this->mContent
) );
755 $outputPage->addHTML( "\n</pre>\n" );
760 * Get the robot policy to be used for the current view
761 * @param $action String the action= GET parameter
762 * @param $pOutput ParserOutput
763 * @return Array the policy that should be set
764 * TODO: actions other than 'view'
766 public function getRobotPolicy( $action, $pOutput ) {
767 global $wgArticleRobotPolicies, $wgNamespaceRobotPolicies, $wgDefaultRobotPolicy;
769 $ns = $this->getTitle()->getNamespace();
771 if ( $ns == NS_USER ||
$ns == NS_USER_TALK
) {
772 # Don't index user and user talk pages for blocked users (bug 11443)
773 if ( !$this->getTitle()->isSubpage() ) {
774 if ( Block
::newFromTarget( null, $this->getTitle()->getText() ) instanceof Block
) {
776 'index' => 'noindex',
777 'follow' => 'nofollow'
783 if ( $this->mPage
->getID() === 0 ||
$this->getOldID() ) {
784 # Non-articles (special pages etc), and old revisions
786 'index' => 'noindex',
787 'follow' => 'nofollow'
789 } elseif ( $this->getContext()->getOutput()->isPrintable() ) {
790 # Discourage indexing of printable versions, but encourage following
792 'index' => 'noindex',
795 } elseif ( $this->getContext()->getRequest()->getInt( 'curid' ) ) {
796 # For ?curid=x urls, disallow indexing
798 'index' => 'noindex',
803 # Otherwise, construct the policy based on the various config variables.
804 $policy = self
::formatRobotPolicy( $wgDefaultRobotPolicy );
806 if ( isset( $wgNamespaceRobotPolicies[$ns] ) ) {
807 # Honour customised robot policies for this namespace
808 $policy = array_merge(
810 self
::formatRobotPolicy( $wgNamespaceRobotPolicies[$ns] )
813 if ( $this->getTitle()->canUseNoindex() && is_object( $pOutput ) && $pOutput->getIndexPolicy() ) {
814 # __INDEX__ and __NOINDEX__ magic words, if allowed. Incorporates
815 # a final sanity check that we have really got the parser output.
816 $policy = array_merge(
818 array( 'index' => $pOutput->getIndexPolicy() )
822 if ( isset( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] ) ) {
823 # (bug 14900) site config can override user-defined __INDEX__ or __NOINDEX__
824 $policy = array_merge(
826 self
::formatRobotPolicy( $wgArticleRobotPolicies[$this->getTitle()->getPrefixedText()] )
834 * Converts a String robot policy into an associative array, to allow
835 * merging of several policies using array_merge().
836 * @param $policy Mixed, returns empty array on null/false/'', transparent
837 * to already-converted arrays, converts String.
838 * @return Array: 'index' => \<indexpolicy\>, 'follow' => \<followpolicy\>
840 public static function formatRobotPolicy( $policy ) {
841 if ( is_array( $policy ) ) {
843 } elseif ( !$policy ) {
847 $policy = explode( ',', $policy );
848 $policy = array_map( 'trim', $policy );
851 foreach ( $policy as $var ) {
852 if ( in_array( $var, array( 'index', 'noindex' ) ) ) {
853 $arr['index'] = $var;
854 } elseif ( in_array( $var, array( 'follow', 'nofollow' ) ) ) {
855 $arr['follow'] = $var;
863 * If this request is a redirect view, send "redirected from" subtitle to
864 * the output. Returns true if the header was needed, false if this is not
865 * a redirect view. Handles both local and remote redirects.
869 public function showRedirectedFromHeader() {
870 global $wgRedirectSources;
871 $outputPage = $this->getContext()->getOutput();
873 $rdfrom = $this->getContext()->getRequest()->getVal( 'rdfrom' );
875 if ( isset( $this->mRedirectedFrom
) ) {
876 // This is an internally redirected page view.
877 // We'll need a backlink to the source page for navigation.
878 if ( wfRunHooks( 'ArticleViewRedirect', array( &$this ) ) ) {
879 $redir = Linker
::linkKnown(
880 $this->mRedirectedFrom
,
883 array( 'redirect' => 'no' )
886 $outputPage->addSubtitle( wfMessage( 'redirectedfrom' )->rawParams( $redir ) );
888 // Set the fragment if one was specified in the redirect
889 if ( strval( $this->getTitle()->getFragment() ) != '' ) {
890 $fragment = Xml
::escapeJsString( $this->getTitle()->getFragmentForURL() );
891 $outputPage->addInlineScript( "redirectToFragment(\"$fragment\");" );
894 // Add a <link rel="canonical"> tag
895 $outputPage->addLink( array( 'rel' => 'canonical',
896 'href' => $this->getTitle()->getLocalURL() )
899 // Tell the output object that the user arrived at this article through a redirect
900 $outputPage->setRedirectedFrom( $this->mRedirectedFrom
);
904 } elseif ( $rdfrom ) {
905 // This is an externally redirected view, from some other wiki.
906 // If it was reported from a trusted site, supply a backlink.
907 if ( $wgRedirectSources && preg_match( $wgRedirectSources, $rdfrom ) ) {
908 $redir = Linker
::makeExternalLink( $rdfrom, $rdfrom );
909 $outputPage->addSubtitle( wfMessage( 'redirectedfrom' )->rawParams( $redir ) );
919 * Show a header specific to the namespace currently being viewed, like
920 * [[MediaWiki:Talkpagetext]]. For Article::view().
922 public function showNamespaceHeader() {
923 if ( $this->getTitle()->isTalkPage() ) {
924 if ( !wfMessage( 'talkpageheader' )->isDisabled() ) {
925 $this->getContext()->getOutput()->wrapWikiMsg( "<div class=\"mw-talkpageheader\">\n$1\n</div>", array( 'talkpageheader' ) );
931 * Show the footer section of an ordinary page view
933 public function showViewFooter() {
934 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
935 if ( $this->getTitle()->getNamespace() == NS_USER_TALK
&& IP
::isValid( $this->getTitle()->getText() ) ) {
936 $this->getContext()->getOutput()->addWikiMsg( 'anontalkpagetext' );
939 # If we have been passed an &rcid= parameter, we want to give the user a
940 # chance to mark this new article as patrolled.
941 $this->showPatrolFooter();
943 wfRunHooks( 'ArticleViewFooter', array( $this ) );
948 * If patrol is possible, output a patrol UI box. This is called from the
949 * footer section of ordinary page views. If patrol is not possible or not
950 * desired, does nothing.
952 public function showPatrolFooter() {
953 $request = $this->getContext()->getRequest();
954 $outputPage = $this->getContext()->getOutput();
955 $user = $this->getContext()->getUser();
956 $rcid = $request->getVal( 'rcid' );
958 if ( !$rcid ||
!$this->getTitle()->quickUserCan( 'patrol', $user ) ) {
962 $token = $user->getEditToken( $rcid );
963 $outputPage->preventClickjacking();
965 $link = Linker
::linkKnown(
967 wfMessage( 'markaspatrolledtext' )->escaped(),
970 'action' => 'markpatrolled',
976 $outputPage->addHTML(
977 "<div class='patrollink'>" .
978 wfMessage( 'markaspatrolledlink' )->rawParams( $link )->escaped() .
984 * Show the error text for a missing article. For articles in the MediaWiki
985 * namespace, show the default message text. To be called from Article::view().
987 public function showMissingArticle() {
988 global $wgSend404Code;
989 $outputPage = $this->getContext()->getOutput();
991 # Show info in user (talk) namespace. Does the user exist? Is he blocked?
992 if ( $this->getTitle()->getNamespace() == NS_USER ||
$this->getTitle()->getNamespace() == NS_USER_TALK
) {
993 $parts = explode( '/', $this->getTitle()->getText() );
994 $rootPart = $parts[0];
995 $user = User
::newFromName( $rootPart, false /* allow IP users*/ );
996 $ip = User
::isIP( $rootPart );
998 if ( !($user && $user->isLoggedIn()) && !$ip ) { # User does not exist
999 $outputPage->wrapWikiMsg( "<div class=\"mw-userpage-userdoesnotexist error\">\n\$1\n</div>",
1000 array( 'userpage-userdoesnotexist-view', wfEscapeWikiText( $rootPart ) ) );
1001 } elseif ( $user->isBlocked() ) { # Show log extract if the user is currently blocked
1002 LogEventsList
::showLogExtract(
1005 $user->getUserPage(),
1009 'showIfEmpty' => false,
1011 'blocked-notice-logextract',
1012 $user->getName() # Support GENDER in notice
1019 wfRunHooks( 'ShowMissingArticle', array( $this ) );
1021 # Show delete and move logs
1022 LogEventsList
::showLogExtract( $outputPage, array( 'delete', 'move' ), $this->getTitle(), '',
1024 'conds' => array( "log_action != 'revision'" ),
1025 'showIfEmpty' => false,
1026 'msgKey' => array( 'moveddeleted-notice' ) )
1029 if ( !$this->mPage
->hasViewableContent() && $wgSend404Code ) {
1030 // If there's no backing content, send a 404 Not Found
1031 // for better machine handling of broken links.
1032 $this->getContext()->getRequest()->response()->header( "HTTP/1.1 404 Not Found" );
1035 $hookResult = wfRunHooks( 'BeforeDisplayNoArticleText', array( $this ) );
1037 if ( ! $hookResult ) {
1041 # Show error message
1042 $oldid = $this->getOldID();
1044 $text = wfMessage( 'missing-revision', $oldid )->plain();
1045 } elseif ( $this->getTitle()->getNamespace() === NS_MEDIAWIKI
) {
1046 // Use the default message text
1047 $text = $this->getTitle()->getDefaultMessageText();
1048 } elseif ( $this->getTitle()->quickUserCan( 'create', $this->getContext()->getUser() )
1049 && $this->getTitle()->quickUserCan( 'edit', $this->getContext()->getUser() )
1051 $text = wfMessage( 'noarticletext' )->plain();
1053 $text = wfMessage( 'noarticletext-nopermission' )->plain();
1055 $text = "<div class='noarticletext'>\n$text\n</div>";
1057 $outputPage->addWikiText( $text );
1061 * If the revision requested for view is deleted, check permissions.
1062 * Send either an error message or a warning header to the output.
1064 * @return boolean true if the view is allowed, false if not.
1066 public function showDeletedRevisionHeader() {
1067 if ( !$this->mRevision
->isDeleted( Revision
::DELETED_TEXT
) ) {
1072 $outputPage = $this->getContext()->getOutput();
1073 $user = $this->getContext()->getUser();
1074 // If the user is not allowed to see it...
1075 if ( !$this->mRevision
->userCan( Revision
::DELETED_TEXT
, $user ) ) {
1076 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1077 'rev-deleted-text-permission' );
1080 // If the user needs to confirm that they want to see it...
1081 } elseif ( $this->getContext()->getRequest()->getInt( 'unhide' ) != 1 ) {
1082 # Give explanation and add a link to view the revision...
1083 $oldid = intval( $this->getOldID() );
1084 $link = $this->getTitle()->getFullUrl( "oldid={$oldid}&unhide=1" );
1085 $msg = $this->mRevision
->isDeleted( Revision
::DELETED_RESTRICTED
) ?
1086 'rev-suppressed-text-unhide' : 'rev-deleted-text-unhide';
1087 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1088 array( $msg, $link ) );
1091 // We are allowed to see...
1093 $msg = $this->mRevision
->isDeleted( Revision
::DELETED_RESTRICTED
) ?
1094 'rev-suppressed-text-view' : 'rev-deleted-text-view';
1095 $outputPage->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n", $msg );
1102 * Generate the navigation links when browsing through an article revisions
1103 * It shows the information as:
1104 * Revision as of \<date\>; view current revision
1105 * \<- Previous version | Next Version -\>
1107 * @param $oldid int: revision ID of this article revision
1109 public function setOldSubtitle( $oldid = 0 ) {
1110 if ( !wfRunHooks( 'DisplayOldSubtitle', array( &$this, &$oldid ) ) ) {
1114 $unhide = $this->getContext()->getRequest()->getInt( 'unhide' ) == 1;
1116 # Cascade unhide param in links for easy deletion browsing
1117 $extraParams = array();
1119 $extraParams['unhide'] = 1;
1122 if ( $this->mRevision
&& $this->mRevision
->getId() === $oldid ) {
1123 $revision = $this->mRevision
;
1125 $revision = Revision
::newFromId( $oldid );
1128 $timestamp = $revision->getTimestamp();
1130 $current = ( $oldid == $this->mPage
->getLatest() );
1131 $language = $this->getContext()->getLanguage();
1132 $user = $this->getContext()->getUser();
1134 $td = $language->userTimeAndDate( $timestamp, $user );
1135 $tddate = $language->userDate( $timestamp, $user );
1136 $tdtime = $language->userTime( $timestamp, $user );
1138 # Show user links if allowed to see them. If hidden, then show them only if requested...
1139 $userlinks = Linker
::revUserTools( $revision, !$unhide );
1141 $infomsg = $current && !wfMessage( 'revision-info-current' )->isDisabled()
1142 ?
'revision-info-current'
1145 $outputPage = $this->getContext()->getOutput();
1146 $outputPage->addSubtitle( "<div id=\"mw-{$infomsg}\">" . wfMessage( $infomsg,
1147 $td )->rawParams( $userlinks )->params( $revision->getID(), $tddate,
1148 $tdtime, $revision->getUser() )->parse() . "</div>" );
1151 ?
wfMessage( 'currentrevisionlink' )->escaped()
1152 : Linker
::linkKnown(
1154 wfMessage( 'currentrevisionlink' )->escaped(),
1159 ?
wfMessage( 'diff' )->escaped()
1160 : Linker
::linkKnown(
1162 wfMessage( 'diff' )->escaped(),
1169 $prev = $this->getTitle()->getPreviousRevisionID( $oldid ) ;
1171 ? Linker
::linkKnown(
1173 wfMessage( 'previousrevision' )->escaped(),
1176 'direction' => 'prev',
1180 : wfMessage( 'previousrevision' )->escaped();
1182 ? Linker
::linkKnown(
1184 wfMessage( 'diff' )->escaped(),
1191 : wfMessage( 'diff' )->escaped();
1192 $nextlink = $current
1193 ?
wfMessage( 'nextrevision' )->escaped()
1194 : Linker
::linkKnown(
1196 wfMessage( 'nextrevision' )->escaped(),
1199 'direction' => 'next',
1203 $nextdiff = $current
1204 ?
wfMessage( 'diff' )->escaped()
1205 : Linker
::linkKnown(
1207 wfMessage( 'diff' )->escaped(),
1215 $cdel = Linker
::getRevDeleteLink( $user, $revision, $this->getTitle() );
1216 if ( $cdel !== '' ) {
1220 $outputPage->addSubtitle( "<div id=\"mw-revision-nav\">" . $cdel .
1221 wfMessage( 'revision-nav' )->rawParams(
1222 $prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff
1223 )->escaped() . "</div>" );
1229 * @param $target Title|Array of destination(s) to redirect
1230 * @param $appendSubtitle Boolean [optional]
1231 * @param $forceKnown Boolean: should the image be shown as a bluelink regardless of existence?
1232 * @return string containing HMTL with redirect link
1234 public function viewRedirect( $target, $appendSubtitle = true, $forceKnown = false ) {
1235 global $wgStylePath;
1237 if ( !is_array( $target ) ) {
1238 $target = array( $target );
1241 $lang = $this->getTitle()->getPageLanguage();
1242 $imageDir = $lang->getDir();
1244 if ( $appendSubtitle ) {
1245 $out = $this->getContext()->getOutput();
1246 $out->appendSubtitle( wfMessage( 'redirectpagesub' )->escaped() );
1249 // the loop prepends the arrow image before the link, so the first case needs to be outside
1254 $title = array_shift( $target );
1256 if ( $forceKnown ) {
1257 $link = Linker
::linkKnown( $title, htmlspecialchars( $title->getFullText() ) );
1259 $link = Linker
::link( $title, htmlspecialchars( $title->getFullText() ) );
1262 $nextRedirect = $wgStylePath . '/common/images/nextredirect' . $imageDir . '.png';
1263 $alt = $lang->isRTL() ?
'←' : '→';
1264 // Automatically append redirect=no to each link, since most of them are redirect pages themselves.
1265 foreach ( $target as $rt ) {
1266 $link .= Html
::element( 'img', array( 'src' => $nextRedirect, 'alt' => $alt ) );
1267 if ( $forceKnown ) {
1268 $link .= Linker
::linkKnown( $rt, htmlspecialchars( $rt->getFullText(), array(), array( 'redirect' => 'no' ) ) );
1270 $link .= Linker
::link( $rt, htmlspecialchars( $rt->getFullText() ), array(), array( 'redirect' => 'no' ) );
1274 $imageUrl = $wgStylePath . '/common/images/redirect' . $imageDir . '.png';
1275 return '<div class="redirectMsg">' .
1276 Html
::element( 'img', array( 'src' => $imageUrl, 'alt' => '#REDIRECT' ) ) .
1277 '<span class="redirectText">' . $link . '</span></div>';
1281 * Handle action=render
1283 public function render() {
1284 $this->getContext()->getOutput()->setArticleBodyOnly( true );
1289 * action=protect handler
1291 public function protect() {
1292 $form = new ProtectionForm( $this );
1297 * action=unprotect handler (alias)
1299 public function unprotect() {
1304 * UI entry point for page deletion
1306 public function delete() {
1307 # This code desperately needs to be totally rewritten
1309 $title = $this->getTitle();
1310 $user = $this->getContext()->getUser();
1313 $permission_errors = $title->getUserPermissionsErrors( 'delete', $user );
1314 if ( count( $permission_errors ) ) {
1315 throw new PermissionsError( 'delete', $permission_errors );
1318 # Read-only check...
1319 if ( wfReadOnly() ) {
1320 throw new ReadOnlyError
;
1323 # Better double-check that it hasn't been deleted yet!
1324 $this->mPage
->loadPageData( 'fromdbmaster' );
1325 if ( !$this->mPage
->exists() ) {
1326 $deleteLogPage = new LogPage( 'delete' );
1327 $outputPage = $this->getContext()->getOutput();
1328 $outputPage->setPageTitle( wfMessage( 'cannotdelete-title', $title->getPrefixedText() ) );
1329 $outputPage->wrapWikiMsg( "<div class=\"error mw-error-cannotdelete\">\n$1\n</div>",
1330 array( 'cannotdelete', wfEscapeWikiText( $title->getPrefixedText() ) )
1332 $outputPage->addHTML(
1333 Xml
::element( 'h2', null, $deleteLogPage->getName()->text() )
1335 LogEventsList
::showLogExtract(
1344 $request = $this->getContext()->getRequest();
1345 $deleteReasonList = $request->getText( 'wpDeleteReasonList', 'other' );
1346 $deleteReason = $request->getText( 'wpReason' );
1348 if ( $deleteReasonList == 'other' ) {
1349 $reason = $deleteReason;
1350 } elseif ( $deleteReason != '' ) {
1351 // Entry from drop down menu + additional comment
1352 $colonseparator = wfMessage( 'colon-separator' )->inContentLanguage()->text();
1353 $reason = $deleteReasonList . $colonseparator . $deleteReason;
1355 $reason = $deleteReasonList;
1358 if ( $request->wasPosted() && $user->matchEditToken( $request->getVal( 'wpEditToken' ),
1359 array( 'delete', $this->getTitle()->getPrefixedText() ) ) )
1361 # Flag to hide all contents of the archived revisions
1362 $suppress = $request->getVal( 'wpSuppress' ) && $user->isAllowed( 'suppressrevision' );
1364 $this->doDelete( $reason, $suppress );
1366 if ( $user->isLoggedIn() && $request->getCheck( 'wpWatch' ) != $user->isWatched( $title ) ) {
1367 if ( $request->getCheck( 'wpWatch' ) ) {
1368 WatchAction
::doWatch( $title, $user );
1370 WatchAction
::doUnwatch( $title, $user );
1377 // Generate deletion reason
1378 $hasHistory = false;
1380 $reason = $this->generateReason( $hasHistory );
1383 // If the page has a history, insert a warning
1384 if ( $hasHistory ) {
1385 $revisions = $this->mTitle
->estimateRevisionCount();
1386 // @todo FIXME: i18n issue/patchwork message
1387 $this->getContext()->getOutput()->addHTML( '<strong class="mw-delete-warning-revisions">' .
1388 wfMessage( 'historywarning' )->numParams( $revisions )->parse() .
1389 wfMessage( 'word-separator' )->plain() . Linker
::linkKnown( $title,
1390 wfMessage( 'history' )->escaped(),
1391 array( 'rel' => 'archives' ),
1392 array( 'action' => 'history' ) ) .
1396 if ( $this->mTitle
->isBigDeletion() ) {
1397 global $wgDeleteRevisionsLimit;
1398 $this->getContext()->getOutput()->wrapWikiMsg( "<div class='error'>\n$1\n</div>\n",
1399 array( 'delete-warning-toobig', $this->getContext()->getLanguage()->formatNum( $wgDeleteRevisionsLimit ) ) );
1403 $this->confirmDelete( $reason );
1407 * Output deletion confirmation dialog
1408 * @todo FIXME: Move to another file?
1409 * @param $reason String: prefilled reason
1411 public function confirmDelete( $reason ) {
1412 wfDebug( "Article::confirmDelete\n" );
1414 $outputPage = $this->getContext()->getOutput();
1415 $outputPage->setPageTitle( wfMessage( 'delete-confirm', $this->getTitle()->getPrefixedText() ) );
1416 $outputPage->addBacklinkSubtitle( $this->getTitle() );
1417 $outputPage->setRobotPolicy( 'noindex,nofollow' );
1418 $outputPage->addWikiMsg( 'confirmdeletetext' );
1420 wfRunHooks( 'ArticleConfirmDelete', array( $this, $outputPage, &$reason ) );
1422 $user = $this->getContext()->getUser();
1424 if ( $user->isAllowed( 'suppressrevision' ) ) {
1425 $suppress = "<tr id=\"wpDeleteSuppressRow\">
1427 <td class='mw-input'><strong>" .
1428 Xml
::checkLabel( wfMessage( 'revdelete-suppress' )->text(),
1429 'wpSuppress', 'wpSuppress', false, array( 'tabindex' => '4' ) ) .
1435 $checkWatch = $user->getBoolOption( 'watchdeletion' ) ||
$user->isWatched( $this->getTitle() );
1437 $form = Xml
::openElement( 'form', array( 'method' => 'post',
1438 'action' => $this->getTitle()->getLocalURL( 'action=delete' ), 'id' => 'deleteconfirm' ) ) .
1439 Xml
::openElement( 'fieldset', array( 'id' => 'mw-delete-table' ) ) .
1440 Xml
::tags( 'legend', null, wfMessage( 'delete-legend' )->escaped() ) .
1441 Xml
::openElement( 'table', array( 'id' => 'mw-deleteconfirm-table' ) ) .
1442 "<tr id=\"wpDeleteReasonListRow\">
1443 <td class='mw-label'>" .
1444 Xml
::label( wfMessage( 'deletecomment' )->text(), 'wpDeleteReasonList' ) .
1446 <td class='mw-input'>" .
1447 Xml
::listDropDown( 'wpDeleteReasonList',
1448 wfMessage( 'deletereason-dropdown' )->inContentLanguage()->text(),
1449 wfMessage( 'deletereasonotherlist' )->inContentLanguage()->text(), '', 'wpReasonDropDown', 1 ) .
1452 <tr id=\"wpDeleteReasonRow\">
1453 <td class='mw-label'>" .
1454 Xml
::label( wfMessage( 'deleteotherreason' )->text(), 'wpReason' ) .
1456 <td class='mw-input'>" .
1457 Html
::input( 'wpReason', $reason, 'text', array(
1459 'maxlength' => '255',
1467 # Disallow watching if user is not logged in
1468 if ( $user->isLoggedIn() ) {
1472 <td class='mw-input'>" .
1473 Xml
::checkLabel( wfMessage( 'watchthis' )->text(),
1474 'wpWatch', 'wpWatch', $checkWatch, array( 'tabindex' => '3' ) ) .
1483 <td class='mw-submit'>" .
1484 Xml
::submitButton( wfMessage( 'deletepage' )->text(),
1485 array( 'name' => 'wpConfirmB', 'id' => 'wpConfirmB', 'tabindex' => '5' ) ) .
1488 Xml
::closeElement( 'table' ) .
1489 Xml
::closeElement( 'fieldset' ) .
1490 Html
::hidden( 'wpEditToken', $user->getEditToken( array( 'delete', $this->getTitle()->getPrefixedText() ) ) ) .
1491 Xml
::closeElement( 'form' );
1493 if ( $user->isAllowed( 'editinterface' ) ) {
1494 $title = Title
::makeTitle( NS_MEDIAWIKI
, 'Deletereason-dropdown' );
1495 $link = Linker
::link(
1497 wfMessage( 'delete-edit-reasonlist' )->escaped(),
1499 array( 'action' => 'edit' )
1501 $form .= '<p class="mw-delete-editreasons">' . $link . '</p>';
1504 $outputPage->addHTML( $form );
1506 $deleteLogPage = new LogPage( 'delete' );
1507 $outputPage->addHTML( Xml
::element( 'h2', null, $deleteLogPage->getName()->text() ) );
1508 LogEventsList
::showLogExtract( $outputPage, 'delete',
1514 * Perform a deletion and output success or failure messages
1516 * @param $suppress bool
1518 public function doDelete( $reason, $suppress = false ) {
1520 $outputPage = $this->getContext()->getOutput();
1521 $status = $this->mPage
->doDeleteArticleReal( $reason, $suppress, 0, true, $error );
1522 if ( $status->isGood() ) {
1523 $deleted = $this->getTitle()->getPrefixedText();
1525 $outputPage->setPageTitle( wfMessage( 'actioncomplete' ) );
1526 $outputPage->setRobotPolicy( 'noindex,nofollow' );
1528 $loglink = '[[Special:Log/delete|' . wfMessage( 'deletionlog' )->text() . ']]';
1530 $outputPage->addWikiMsg( 'deletedtext', wfEscapeWikiText( $deleted ), $loglink );
1531 $outputPage->returnToMain( false );
1533 $outputPage->setPageTitle( wfMessage( 'cannotdelete-title', $this->getTitle()->getPrefixedText() ) );
1534 if ( $error == '' ) {
1535 $outputPage->addWikiText(
1536 "<div class=\"error mw-error-cannotdelete\">\n" . $status->getWikiText() . "\n</div>"
1538 $deleteLogPage = new LogPage( 'delete' );
1539 $outputPage->addHTML( Xml
::element( 'h2', null, $deleteLogPage->getName()->text() ) );
1541 LogEventsList
::showLogExtract(
1547 $outputPage->addHTML( $error );
1552 /* Caching functions */
1555 * checkLastModified returns true if it has taken care of all
1556 * output to the client that is necessary for this request.
1557 * (that is, it has sent a cached version of the page)
1559 * @return boolean true if cached version send, false otherwise
1561 protected function tryFileCache() {
1562 static $called = false;
1565 wfDebug( "Article::tryFileCache(): called twice!?\n" );
1570 if ( $this->isFileCacheable() ) {
1571 $cache = HTMLFileCache
::newFromTitle( $this->getTitle(), 'view' );
1572 if ( $cache->isCacheGood( $this->mPage
->getTouched() ) ) {
1573 wfDebug( "Article::tryFileCache(): about to load file\n" );
1574 $cache->loadFromFileCache( $this->getContext() );
1577 wfDebug( "Article::tryFileCache(): starting buffer\n" );
1578 ob_start( array( &$cache, 'saveToFileCache' ) );
1581 wfDebug( "Article::tryFileCache(): not cacheable\n" );
1588 * Check if the page can be cached
1591 public function isFileCacheable() {
1594 if ( HTMLFileCache
::useFileCache( $this->getContext() ) ) {
1595 $cacheable = $this->mPage
->getID()
1596 && !$this->mRedirectedFrom
&& !$this->getTitle()->isRedirect();
1597 // Extension may have reason to disable file caching on some pages.
1599 $cacheable = wfRunHooks( 'IsFileCacheable', array( &$this ) );
1609 * Lightweight method to get the parser output for a page, checking the parser cache
1610 * and so on. Doesn't consider most of the stuff that WikiPage::view is forced to
1611 * consider, so it's not appropriate to use there.
1613 * @since 1.16 (r52326) for LiquidThreads
1615 * @param $oldid mixed integer Revision ID or null
1616 * @param $user User The relevant user
1617 * @return ParserOutput or false if the given revsion ID is not found
1619 public function getParserOutput( $oldid = null, User
$user = null ) {
1620 if ( $user === null ) {
1621 $parserOptions = $this->getParserOptions();
1623 $parserOptions = $this->mPage
->makeParserOptions( $user );
1626 return $this->mPage
->getParserOutput( $parserOptions, $oldid );
1630 * Get parser options suitable for rendering the primary article wikitext
1631 * @return ParserOptions
1633 public function getParserOptions() {
1634 if ( !$this->mParserOptions
) {
1635 $this->mParserOptions
= $this->mPage
->makeParserOptions( $this->getContext() );
1637 // Clone to allow modifications of the return value without affecting cache
1638 return clone $this->mParserOptions
;
1642 * Sets the context this Article is executed in
1644 * @param $context IContextSource
1647 public function setContext( $context ) {
1648 $this->mContext
= $context;
1652 * Gets the context this Article is executed in
1654 * @return IContextSource
1657 public function getContext() {
1658 if ( $this->mContext
instanceof IContextSource
) {
1659 return $this->mContext
;
1661 wfDebug( __METHOD__
. " called and \$mContext is null. Return RequestContext::getMain(); for sanity\n" );
1662 return RequestContext
::getMain();
1667 * Info about this page
1668 * @deprecated since 1.19
1670 public function info() {
1671 wfDeprecated( __METHOD__
, '1.19' );
1672 Action
::factory( 'info', $this )->show();
1676 * Mark this particular edit/page as patrolled
1677 * @deprecated since 1.18
1679 public function markpatrolled() {
1680 wfDeprecated( __METHOD__
, '1.18' );
1681 Action
::factory( 'markpatrolled', $this )->show();
1685 * Handle action=purge
1686 * @deprecated since 1.19
1687 * @return Action|bool|null false if the action is disabled, null if it is not recognised
1689 public function purge() {
1690 return Action
::factory( 'purge', $this )->show();
1694 * Handle action=revert
1695 * @deprecated since 1.19
1697 public function revert() {
1698 wfDeprecated( __METHOD__
, '1.19' );
1699 Action
::factory( 'revert', $this )->show();
1703 * Handle action=rollback
1704 * @deprecated since 1.19
1706 public function rollback() {
1707 wfDeprecated( __METHOD__
, '1.19' );
1708 Action
::factory( 'rollback', $this )->show();
1712 * User-interface handler for the "watch" action.
1713 * Requires Request to pass a token as of 1.18.
1714 * @deprecated since 1.18
1716 public function watch() {
1717 wfDeprecated( __METHOD__
, '1.18' );
1718 Action
::factory( 'watch', $this )->show();
1722 * Add this page to the current user's watchlist
1724 * This is safe to be called multiple times
1726 * @return bool true on successful watch operation
1727 * @deprecated since 1.18
1729 public function doWatch() {
1730 wfDeprecated( __METHOD__
, '1.18' );
1731 return WatchAction
::doWatch( $this->getTitle(), $this->getContext()->getUser() );
1735 * User interface handler for the "unwatch" action.
1736 * Requires Request to pass a token as of 1.18.
1737 * @deprecated since 1.18
1739 public function unwatch() {
1740 wfDeprecated( __METHOD__
, '1.18' );
1741 Action
::factory( 'unwatch', $this )->show();
1745 * Stop watching a page
1746 * @return bool true on successful unwatch
1747 * @deprecated since 1.18
1749 public function doUnwatch() {
1750 wfDeprecated( __METHOD__
, '1.18' );
1751 return WatchAction
::doUnwatch( $this->getTitle(), $this->getContext()->getUser() );
1755 * Output a redirect back to the article.
1756 * This is typically used after an edit.
1758 * @deprecated in 1.18; call OutputPage::redirect() directly
1759 * @param $noRedir Boolean: add redirect=no
1760 * @param $sectionAnchor String: section to redirect to, including "#"
1761 * @param $extraQuery String: extra query params
1763 public function doRedirect( $noRedir = false, $sectionAnchor = '', $extraQuery = '' ) {
1764 wfDeprecated( __METHOD__
, '1.18' );
1766 $query = 'redirect=no';
1768 $query .= "&$extraQuery";
1770 $query = $extraQuery;
1773 $this->getContext()->getOutput()->redirect( $this->getTitle()->getFullURL( $query ) . $sectionAnchor );
1777 * Use PHP's magic __get handler to handle accessing of
1778 * raw WikiPage fields for backwards compatibility.
1780 * @param $fname String Field name
1782 public function __get( $fname ) {
1783 if ( property_exists( $this->mPage
, $fname ) ) {
1784 #wfWarn( "Access to raw $fname field " . __CLASS__ );
1785 return $this->mPage
->$fname;
1787 trigger_error( 'Inaccessible property via __get(): ' . $fname, E_USER_NOTICE
);
1791 * Use PHP's magic __set handler to handle setting of
1792 * raw WikiPage fields for backwards compatibility.
1794 * @param $fname String Field name
1795 * @param $fvalue mixed New value
1797 public function __set( $fname, $fvalue ) {
1798 if ( property_exists( $this->mPage
, $fname ) ) {
1799 #wfWarn( "Access to raw $fname field of " . __CLASS__ );
1800 $this->mPage
->$fname = $fvalue;
1801 // Note: extensions may want to toss on new fields
1802 } elseif ( !in_array( $fname, array( 'mContext', 'mPage' ) ) ) {
1803 $this->mPage
->$fname = $fvalue;
1805 trigger_error( 'Inaccessible property via __set(): ' . $fname, E_USER_NOTICE
);
1810 * Use PHP's magic __call handler to transform instance calls to
1811 * WikiPage functions for backwards compatibility.
1813 * @param $fname String Name of called method
1814 * @param $args Array Arguments to the method
1817 public function __call( $fname, $args ) {
1818 if ( is_callable( array( $this->mPage
, $fname ) ) ) {
1819 #wfWarn( "Call to " . __CLASS__ . "::$fname; please use WikiPage instead" );
1820 return call_user_func_array( array( $this->mPage
, $fname ), $args );
1822 trigger_error( 'Inaccessible function via __call(): ' . $fname, E_USER_ERROR
);
1825 // ****** B/C functions to work-around PHP silliness with __call and references ****** //
1828 * @param $limit array
1829 * @param $expiry array
1830 * @param $cascade bool
1831 * @param $reason string
1835 public function doUpdateRestrictions( array $limit, array $expiry, &$cascade, $reason, User
$user ) {
1836 return $this->mPage
->doUpdateRestrictions( $limit, $expiry, $cascade, $reason, $user );
1840 * @param $limit array
1841 * @param $reason string
1842 * @param $cascade int
1843 * @param $expiry array
1846 public function updateRestrictions( $limit = array(), $reason = '', &$cascade = 0, $expiry = array() ) {
1847 return $this->mPage
->updateRestrictions( $limit, $reason, $cascade, $expiry );
1851 * @param $reason string
1852 * @param $suppress bool
1854 * @param $commit bool
1855 * @param $error string
1858 public function doDeleteArticle( $reason, $suppress = false, $id = 0, $commit = true, &$error = '' ) {
1859 return $this->mPage
->doDeleteArticle( $reason, $suppress, $id, $commit, $error );
1867 * @param $resultDetails
1871 public function doRollback( $fromP, $summary, $token, $bot, &$resultDetails, User
$user = null ) {
1872 $user = is_null( $user ) ?
$this->getContext()->getUser() : $user;
1873 return $this->mPage
->doRollback( $fromP, $summary, $token, $bot, $resultDetails, $user );
1880 * @param $resultDetails
1881 * @param $guser User
1884 public function commitRollback( $fromP, $summary, $bot, &$resultDetails, User
$guser = null ) {
1885 $guser = is_null( $guser ) ?
$this->getContext()->getUser() : $guser;
1886 return $this->mPage
->commitRollback( $fromP, $summary, $bot, $resultDetails, $guser );
1890 * @param $hasHistory bool
1893 public function generateReason( &$hasHistory ) {
1894 return $this->mPage
->getAutoDeleteReason( $hasHistory );
1897 // ****** B/C functions for static methods ( __callStatic is PHP>=5.3 ) ****** //
1902 public static function selectFields() {
1903 return WikiPage
::selectFields();
1907 * @param $title Title
1909 public static function onArticleCreate( $title ) {
1910 WikiPage
::onArticleCreate( $title );
1914 * @param $title Title
1916 public static function onArticleDelete( $title ) {
1917 WikiPage
::onArticleDelete( $title );
1921 * @param $title Title
1923 public static function onArticleEdit( $title ) {
1924 WikiPage
::onArticleEdit( $title );
1933 public static function getAutosummary( $oldtext, $newtext, $flags ) {
1934 return WikiPage
::getAutosummary( $oldtext, $newtext, $flags );