8 * Class representing a MediaWiki article and history.
10 * See design.txt for an overview.
11 * Note: edit user interface and cache support functions have been
12 * moved to separate EditPage and HTMLFileCache classes.
14 * @internal documentation reviewed 15 Mar 2010
20 var $mComment = ''; // !<
22 var $mContentLoaded = false; // !<
23 var $mCounter = -1; // !< Not loaded
24 var $mCurID = -1; // !< Not loaded
25 var $mDataLoaded = false; // !<
26 var $mForUpdate = false; // !<
27 var $mGoodAdjustment = 0; // !<
28 var $mIsRedirect = false; // !<
29 var $mLatest = false; // !<
30 var $mMinorEdit; // !<
32 var $mPreparedEdit = false; // !< Title object if set
33 var $mRedirectedFrom = null; // !< Title object if set
34 var $mRedirectTarget = null; // !< Title object if set
35 var $mRedirectUrl = false; // !<
36 var $mRevIdFetched = 0; // !<
37 var $mRevision; // !< Revision object if set
38 var $mTimestamp = ''; // !<
39 var $mTitle; // !< Title object
40 var $mTotalAdjustment = 0; // !<
41 var $mTouched = '19700101000000'; // !<
42 var $mUser = -1; // !< Not loaded
43 var $mUserText = ''; // !< username from Revision if set
44 var $mParserOptions; // !< ParserOptions object
45 var $mParserOutput; // !< ParserCache object if set
49 * Constructor and clear the article
50 * @param $title Reference to a Title object.
51 * @param $oldId Integer revision ID, null to fetch from request, zero for current
53 public function __construct( Title $title, $oldId = null ) {
54 // FIXME: does the reference play any role here?
55 $this->mTitle =& $title;
56 $this->mOldId = $oldId;
60 * Constructor from an page id
61 * @param $id The article ID to load
63 public static function newFromID( $id ) {
64 $t = Title::newFromID( $id );
65 # FIXME: doesn't inherit right
66 return $t == null ? null : new self( $t );
67 # return $t == null ? null : new static( $t ); // PHP 5.3
71 * Tell the page view functions that this view was redirected
72 * from another page on the wiki.
73 * @param $from Title object.
75 public function setRedirectedFrom( Title $from ) {
76 $this->mRedirectedFrom = $from;
80 * If this page is a redirect, get its target
82 * The target will be fetched from the redirect table if possible.
83 * If this page doesn't have an entry there, call insertRedirect()
84 * @return mixed Title object, or null if this page is not a redirect
86 public function getRedirectTarget() {
87 if ( !$this->mTitle->isRedirect() ) {
91 if ( $this->mRedirectTarget !== null ) {
92 return $this->mRedirectTarget;
95 # Query the redirect table
96 $dbr = wfGetDB( DB_SLAVE );
97 $row = $dbr->selectRow( 'redirect',
98 array( 'rd_namespace', 'rd_title', 'rd_fragment', 'rd_interwiki' ),
99 array( 'rd_from' => $this->getID() ),
103 // rd_fragment and rd_interwiki were added later, populate them if empty
104 if ( $row && !is_null( $row->rd_fragment ) && !is_null( $row->rd_interwiki ) ) {
105 return $this->mRedirectTarget = Title::makeTitle(
106 $row->rd_namespace, $row->rd_title,
107 $row->rd_fragment, $row->rd_interwiki );
110 # This page doesn't have an entry in the redirect table
111 return $this->mRedirectTarget = $this->insertRedirect();
115 * Insert an entry for this page into the redirect table.
117 * Don't call this function directly unless you know what you're doing.
118 * @return Title object or null if not a redirect
120 public function insertRedirect() {
121 // recurse through to only get the final target
122 $retval = Title::newFromRedirectRecurse( $this->getContent() );
126 $this->insertRedirectEntry( $retval );
131 * Insert or update the redirect table entry for this page to indicate
132 * it redirects to $rt .
133 * @param $rt Title redirect target
135 public function insertRedirectEntry( $rt ) {
136 $dbw = wfGetDB( DB_MASTER );
137 $dbw->replace( 'redirect', array( 'rd_from' ),
139 'rd_from' => $this->getID(),
140 'rd_namespace' => $rt->getNamespace(),
141 'rd_title' => $rt->getDBkey(),
142 'rd_fragment' => $rt->getFragment(),
143 'rd_interwiki' => $rt->getInterwiki(),
150 * Get the Title object or URL this page redirects to
152 * @return mixed false, Title of in-wiki target, or string with URL
154 public function followRedirect() {
155 return $this->getRedirectURL( $this->getRedirectTarget() );
159 * Get the Title object this text redirects to
161 * @param $text string article content containing redirect info
162 * @return mixed false, Title of in-wiki target, or string with URL
165 public function followRedirectText( $text ) {
166 // recurse through to only get the final target
167 return $this->getRedirectURL( Title::newFromRedirectRecurse( $text ) );
171 * Get the Title object or URL to use for a redirect. We use Title
172 * objects for same-wiki, non-special redirects and URLs for everything
174 * @param $rt Title Redirect target
175 * @return mixed false, Title object of local target, or string with URL
177 public function getRedirectURL( $rt ) {
179 if ( $rt->getInterwiki() != '' ) {
180 if ( $rt->isLocal() ) {
181 // Offsite wikis need an HTTP redirect.
183 // This can be hard to reverse and may produce loops,
184 // so they may be disabled in the site configuration.
185 $source = $this->mTitle->getFullURL( 'redirect=no' );
186 return $rt->getFullURL( 'rdfrom=' . urlencode( $source ) );
189 if ( $rt->getNamespace() == NS_SPECIAL ) {
190 // Gotta handle redirects to special pages differently:
191 // Fill the HTTP response "Location" header and ignore
192 // the rest of the page we're on.
194 // This can be hard to reverse, so they may be disabled.
195 if ( $rt->isSpecial( 'Userlogout' ) ) {
198 return $rt->getFullURL();
206 // No or invalid redirect
211 * Get the title object of the article
212 * @return Title object of this page
214 public function getTitle() {
215 return $this->mTitle;
220 * FIXME: shouldn't this be public?
223 public function clear() {
224 $this->mDataLoaded = false;
225 $this->mContentLoaded = false;
227 $this->mCurID = $this->mUser = $this->mCounter = -1; # Not loaded
228 $this->mRedirectedFrom = null; # Title object if set
229 $this->mRedirectTarget = null; # Title object if set
231 $this->mTimestamp = $this->mComment = '';
232 $this->mGoodAdjustment = $this->mTotalAdjustment = 0;
233 $this->mTouched = '19700101000000';
234 $this->mForUpdate = false;
235 $this->mIsRedirect = false;
236 $this->mRevIdFetched = 0;
237 $this->mRedirectUrl = false;
238 $this->mLatest = false;
239 $this->mPreparedEdit = false;
243 * Note that getContent/loadContent do not follow redirects anymore.
244 * If you need to fetch redirectable content easily, try
245 * the shortcut in Article::followRedirect()
247 * This function has side effects! Do not use this function if you
248 * only want the real revision text if any.
250 * @return Return the text of this revision
252 public function getContent() {
253 global $wgUser, $wgContLang, $wgMessageCache;
255 wfProfileIn( __METHOD__ );
257 if ( $this->getID() === 0 ) {
258 # If this is a MediaWiki:x message, then load the messages
259 # and return the message value for x.
260 if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
261 # If this is a system message, get the default text.
262 list( $message, $lang ) = $wgMessageCache->figureMessage( $wgContLang->lcfirst( $this->mTitle->getText() ) );
263 $text = wfMsgGetKey( $message, false, $lang, false );
265 if ( wfEmptyMsg( $message, $text ) )
268 $text = wfMsgExt( $wgUser->isLoggedIn() ? 'noarticletext' : 'noarticletextanon', 'parsemag' );
270 wfProfileOut( __METHOD__ );
274 $this->loadContent();
275 wfProfileOut( __METHOD__ );
277 return $this->mContent;
282 * Get the text of the current revision. No side-effects...
284 * @return Return the text of the current revision
286 public function getRawText() {
287 // Check process cache for current revision
288 if ( $this->mContentLoaded && $this->mOldId == 0 ) {
289 return $this->mContent;
292 $rev = Revision::newFromTitle( $this->mTitle );
293 $text = $rev ? $rev->getRawText() : false;
299 * This function returns the text of a section, specified by a number ($section).
300 * A section is text under a heading like == Heading == or \<h1\>Heading\</h1\>, or
301 * the first section before any such heading (section 0).
303 * If a section contains subsections, these are also returned.
305 * @param $text String: text to look in
306 * @param $section Integer: section number
307 * @return string text of the requested section
310 public function getSection( $text, $section ) {
312 return $wgParser->getSection( $text, $section );
316 * Get the text that needs to be saved in order to undo all revisions
317 * between $undo and $undoafter. Revisions must belong to the same page,
318 * must exist and must not be deleted
319 * @param $undo Revision
320 * @param $undoafter Revision Must be an earlier revision than $undo
321 * @return mixed string on success, false on failure
323 public function getUndoText( Revision $undo, Revision $undoafter = null ) {
324 $currentRev = Revision::newFromTitle( $this->mTitle );
325 if ( !$currentRev ) {
326 return false; // no page
328 $undo_text = $undo->getText();
329 $undoafter_text = $undoafter->getText();
330 $cur_text = $currentRev->getText();
332 if ( $cur_text == $undo_text ) {
333 # No use doing a merge if it's just a straight revert.
334 return $undoafter_text;
339 if ( !wfMerge( $undo_text, $undoafter_text, $cur_text, $undone_text ) ) {
347 * @return int The oldid of the article that is to be shown, 0 for the
350 public function getOldID() {
351 if ( is_null( $this->mOldId ) ) {
352 $this->mOldId = $this->getOldIDFromRequest();
355 return $this->mOldId;
359 * Sets $this->mRedirectUrl to a correct URL if the query parameters are incorrect
361 * @return int The old id for the request
363 public function getOldIDFromRequest() {
366 $this->mRedirectUrl = false;
368 $oldid = $wgRequest->getVal( 'oldid' );
370 if ( isset( $oldid ) ) {
371 $oldid = intval( $oldid );
372 if ( $wgRequest->getVal( 'direction' ) == 'next' ) {
373 $nextid = $this->mTitle->getNextRevisionID( $oldid );
377 $this->mRedirectUrl = $this->mTitle->getFullURL( 'redirect=no' );
379 } elseif ( $wgRequest->getVal( 'direction' ) == 'prev' ) {
380 $previd = $this->mTitle->getPreviousRevisionID( $oldid );
395 * Load the revision (including text) into this object
397 function loadContent() {
398 if ( $this->mContentLoaded ) {
402 wfProfileIn( __METHOD__ );
404 $oldid = $this->getOldID();
405 $this->mOldId = $oldid;
406 $this->fetchContent( $oldid );
408 wfProfileOut( __METHOD__ );
412 * Fetch a page record with the given conditions
413 * @param $dbr Database object
414 * @param $conditions Array
415 * @return mixed Database result resource, or false on failure
417 protected function pageData( $dbr, $conditions ) {
432 wfRunHooks( 'ArticlePageDataBefore', array( &$this, &$fields ) );
434 $row = $dbr->selectRow( 'page', $fields, $conditions, __METHOD__ );
436 wfRunHooks( 'ArticlePageDataAfter', array( &$this, &$row ) );
442 * Fetch a page record matching the Title object's namespace and title
443 * using a sanitized title string
445 * @param $dbr Database object
446 * @param $title Title object
447 * @return mixed Database result resource, or false on failure
449 public function pageDataFromTitle( $dbr, $title ) {
450 return $this->pageData( $dbr, array(
451 'page_namespace' => $title->getNamespace(),
452 'page_title' => $title->getDBkey() ) );
456 * Fetch a page record matching the requested ID
458 * @param $dbr Database
461 protected function pageDataFromId( $dbr, $id ) {
462 return $this->pageData( $dbr, array( 'page_id' => $id ) );
466 * Set the general counter, title etc data loaded from
469 * @param $data Database row object or "fromdb"
471 public function loadPageData( $data = 'fromdb' ) {
472 if ( $data === 'fromdb' ) {
473 $dbr = wfGetDB( DB_MASTER );
474 $data = $this->pageDataFromId( $dbr, $this->getId() );
477 $lc = LinkCache::singleton();
480 $lc->addGoodLinkObj( $data->page_id, $this->mTitle, $data->page_len, $data->page_is_redirect, $data->page_latest );
482 $this->mTitle->mArticleID = intval( $data->page_id );
484 # Old-fashioned restrictions
485 $this->mTitle->loadRestrictions( $data->page_restrictions );
487 $this->mCounter = intval( $data->page_counter );
488 $this->mTouched = wfTimestamp( TS_MW, $data->page_touched );
489 $this->mIsRedirect = intval( $data->page_is_redirect );
490 $this->mLatest = intval( $data->page_latest );
492 $lc->addBadLinkObj( $this->mTitle );
493 $this->mTitle->mArticleID = 0;
496 $this->mDataLoaded = true;
500 * Get text of an article from database
501 * Does *NOT* follow redirects.
503 * @param $oldid Int: 0 for whatever the latest revision is
504 * @return mixed string containing article contents, or false if null
506 function fetchContent( $oldid = 0 ) {
507 if ( $this->mContentLoaded ) {
508 return $this->mContent;
511 $dbr = wfGetDB( DB_MASTER );
513 # Pre-fill content with error message so that if something
514 # fails we'll have something telling us what we intended.
515 $t = $this->mTitle->getPrefixedText();
516 $d = $oldid ? wfMsgExt( 'missingarticle-rev', array( 'escape' ), $oldid ) : '';
517 $this->mContent = wfMsgNoTrans( 'missing-article', $t, $d ) ;
520 $revision = Revision::newFromId( $oldid );
521 if ( $revision === null ) {
522 wfDebug( __METHOD__ . " failed to retrieve specified revision, id $oldid\n" );
526 $data = $this->pageDataFromId( $dbr, $revision->getPage() );
529 wfDebug( __METHOD__ . " failed to get page data linked to revision id $oldid\n" );
533 $this->mTitle = Title::makeTitle( $data->page_namespace, $data->page_title );
534 $this->loadPageData( $data );
536 if ( !$this->mDataLoaded ) {
537 $data = $this->pageDataFromTitle( $dbr, $this->mTitle );
540 wfDebug( __METHOD__ . " failed to find page data for title " . $this->mTitle->getPrefixedText() . "\n" );
544 $this->loadPageData( $data );
546 $revision = Revision::newFromId( $this->mLatest );
547 if ( $revision === null ) {
548 wfDebug( __METHOD__ . " failed to retrieve current page, rev_id {$this->mLatest}\n" );
553 // FIXME: Horrible, horrible! This content-loading interface just plain sucks.
554 // We should instead work with the Revision object when we need it...
555 $this->mContent = $revision->getText( Revision::FOR_THIS_USER ); // Loads if user is allowed
557 $this->mUser = $revision->getUser();
558 $this->mUserText = $revision->getUserText();
559 $this->mComment = $revision->getComment();
560 $this->mTimestamp = wfTimestamp( TS_MW, $revision->getTimestamp() );
562 $this->mRevIdFetched = $revision->getId();
563 $this->mContentLoaded = true;
564 $this->mRevision =& $revision;
566 wfRunHooks( 'ArticleAfterFetchContent', array( &$this, &$this->mContent ) );
568 return $this->mContent;
572 * Read/write accessor to select FOR UPDATE
574 * @param $x Mixed: FIXME
575 * @return mixed value of $x, or value stored in Article::mForUpdate
577 public function forUpdate( $x = null ) {
578 return wfSetVar( $this->mForUpdate, $x );
582 * Get options for all SELECT statements
584 * @param $options Array: an optional options array which'll be appended to
586 * @return Array: options
588 protected function getSelectOptions( $options = '' ) {
589 if ( $this->mForUpdate ) {
590 if ( is_array( $options ) ) {
591 $options[] = 'FOR UPDATE';
593 $options = 'FOR UPDATE';
601 * @return int Page ID
603 public function getID() {
604 return $this->mTitle->getArticleID();
608 * @return bool Whether or not the page exists in the database
610 public function exists() {
611 return $this->getId() > 0;
615 * Check if this page is something we're going to be showing
616 * some sort of sensible content for. If we return false, page
617 * views (plain action=view) will return an HTTP 404 response,
618 * so spiders and robots can know they're following a bad link.
622 public function hasViewableContent() {
623 return $this->exists() || $this->mTitle->isAlwaysKnown();
627 * @return int The view count for the page
629 public function getCount() {
630 if ( -1 == $this->mCounter ) {
631 $id = $this->getID();
636 $dbr = wfGetDB( DB_SLAVE );
637 $this->mCounter = $dbr->selectField( 'page',
639 array( 'page_id' => $id ),
641 $this->getSelectOptions()
646 return $this->mCounter;
650 * Determine whether a page would be suitable for being counted as an
651 * article in the site_stats table based on the title & its content
653 * @param $text String: text to analyze
656 public function isCountable( $text ) {
657 global $wgUseCommaCount;
659 $token = $wgUseCommaCount ? ',' : '[[';
661 return $this->mTitle->isContentPage() && !$this->isRedirect( $text ) && in_string( $token, $text );
665 * Tests if the article text represents a redirect
667 * @param $text mixed string containing article contents, or boolean
670 public function isRedirect( $text = false ) {
671 if ( $text === false ) {
672 if ( $this->mDataLoaded ) {
673 return $this->mIsRedirect;
676 // Apparently loadPageData was never called
677 $this->loadContent();
678 $titleObj = Title::newFromRedirectRecurse( $this->fetchContent() );
680 $titleObj = Title::newFromRedirect( $text );
683 return $titleObj !== null;
687 * Returns true if the currently-referenced revision is the current edit
688 * to this page (and it exists).
691 public function isCurrent() {
692 # If no oldid, this is the current version.
693 if ( $this->getOldID() == 0 ) {
697 return $this->exists() && isset( $this->mRevision ) && $this->mRevision->isCurrent();
701 * Loads everything except the text
702 * This isn't necessary for all uses, so it's only done if needed.
704 protected function loadLastEdit() {
705 if ( -1 != $this->mUser ) {
709 # New or non-existent articles have no user information
710 $id = $this->getID();
715 $this->mLastRevision = Revision::loadFromPageId( wfGetDB( DB_MASTER ), $id );
716 if ( !is_null( $this->mLastRevision ) ) {
717 $this->mUser = $this->mLastRevision->getUser();
718 $this->mUserText = $this->mLastRevision->getUserText();
719 $this->mTimestamp = $this->mLastRevision->getTimestamp();
720 $this->mComment = $this->mLastRevision->getComment();
721 $this->mMinorEdit = $this->mLastRevision->isMinor();
722 $this->mRevIdFetched = $this->mLastRevision->getId();
727 * @return string GMT timestamp of last article revision
730 public function getTimestamp() {
731 // Check if the field has been filled by ParserCache::get()
732 if ( !$this->mTimestamp ) {
733 $this->loadLastEdit();
736 return wfTimestamp( TS_MW, $this->mTimestamp );
740 * @return int user ID for the user that made the last article revision
742 public function getUser() {
743 $this->loadLastEdit();
748 * @return string username of the user that made the last article revision
750 public function getUserText() {
751 $this->loadLastEdit();
752 return $this->mUserText;
756 * @return string Comment stored for the last article revision
758 public function getComment() {
759 $this->loadLastEdit();
760 return $this->mComment;
764 * Returns true if last revision was marked as "minor edit"
766 * @return boolean Minor edit indicator for the last article revision.
768 public function getMinorEdit() {
769 $this->loadLastEdit();
770 return $this->mMinorEdit;
774 * Use this to fetch the rev ID used on page views
776 * @return int revision ID of last article revision
778 public function getRevIdFetched() {
779 $this->loadLastEdit();
780 return $this->mRevIdFetched;
784 * FIXME: this does what?
785 * @param $limit Integer: default 0.
786 * @param $offset Integer: default 0.
787 * @return UserArrayFromResult object with User objects of article contributors for requested range
789 public function getContributors( $limit = 0, $offset = 0 ) {
790 # FIXME: this is expensive; cache this info somewhere.
792 $dbr = wfGetDB( DB_SLAVE );
793 $revTable = $dbr->tableName( 'revision' );
794 $userTable = $dbr->tableName( 'user' );
796 $pageId = $this->getId();
798 $user = $this->getUser();
801 $excludeCond = "AND rev_user != $user";
803 $userText = $dbr->addQuotes( $this->getUserText() );
804 $excludeCond = "AND rev_user_text != $userText";
807 $deletedBit = $dbr->bitAnd( 'rev_deleted', Revision::DELETED_USER ); // username hidden?
809 $sql = "SELECT {$userTable}.*, rev_user_text as user_name, MAX(rev_timestamp) as timestamp
810 FROM $revTable LEFT JOIN $userTable ON rev_user = user_id
811 WHERE rev_page = $pageId
814 GROUP BY rev_user, rev_user_text
815 ORDER BY timestamp DESC";
818 $sql = $dbr->limitResult( $sql, $limit, $offset );
821 $sql .= ' ' . $this->getSelectOptions();
822 $res = $dbr->query( $sql, __METHOD__ );
824 return new UserArrayFromResult( $res );
828 * This is the default action of the index.php entry point: just view the
829 * page of the given title.
831 public function view() {
832 global $wgUser, $wgOut, $wgRequest, $wgParser;
833 global $wgUseFileCache, $wgUseETag;
835 wfProfileIn( __METHOD__ );
837 # Get variables from query string
838 $oldid = $this->getOldID();
839 $parserCache = ParserCache::singleton();
841 $parserOptions = $this->getParserOptions();
842 # Render printable version, use printable version cache
843 if ( $wgOut->isPrintable() ) {
844 $parserOptions->setIsPrintable( true );
845 $parserOptions->setEditSection( false );
846 } else if ( $wgUseETag && !$this->mTitle->quickUserCan( 'edit' ) ) {
847 $parserOptions->setEditSection( false );
850 # Try client and file cache
851 if ( $oldid === 0 && $this->checkTouched() ) {
853 $wgOut->setETag( $parserCache->getETag( $this, $parserOptions ) );
856 # Is it client cached?
857 if ( $wgOut->checkLastModified( $this->getTouched() ) ) {
858 wfDebug( __METHOD__ . ": done 304\n" );
859 wfProfileOut( __METHOD__ );
863 } else if ( $wgUseFileCache && $this->tryFileCache() ) {
864 wfDebug( __METHOD__ . ": done file cache\n" );
865 # tell wgOut that output is taken care of
867 $this->viewUpdates();
868 wfProfileOut( __METHOD__ );
874 # getOldID may want us to redirect somewhere else
875 if ( $this->mRedirectUrl ) {
876 $wgOut->redirect( $this->mRedirectUrl );
877 wfDebug( __METHOD__ . ": redirecting due to oldid\n" );
878 wfProfileOut( __METHOD__ );
883 $wgOut->setArticleFlag( true );
884 # Set page title (may be overridden by DISPLAYTITLE)
885 $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
887 # If we got diff in the query, we want to see a diff page instead of the article.
888 if ( $wgRequest->getCheck( 'diff' ) ) {
889 wfDebug( __METHOD__ . ": showing diff page\n" );
890 $this->showDiffPage();
891 wfProfileOut( __METHOD__ );
896 # Allow frames by default
897 $wgOut->allowClickjacking();
899 if ( !$wgUseETag && !$this->mTitle->quickUserCan( 'edit' ) ) {
900 $parserOptions->setEditSection( false );
903 # Should the parser cache be used?
904 $useParserCache = $this->useParserCache( $oldid );
905 wfDebug( 'Article::view using parser cache: ' . ( $useParserCache ? 'yes' : 'no' ) . "\n" );
906 if ( $wgUser->getStubThreshold() ) {
907 wfIncrStats( 'pcache_miss_stub' );
910 $wasRedirected = $this->showRedirectedFromHeader();
911 $this->showNamespaceHeader();
913 # Iterate through the possible ways of constructing the output text.
914 # Keep going until $outputDone is set, or we run out of things to do.
917 $this->mParserOutput = false;
919 while ( !$outputDone && ++$pass ) {
922 wfRunHooks( 'ArticleViewHeader', array( &$this, &$outputDone, &$useParserCache ) );
925 # Try the parser cache
926 if ( $useParserCache ) {
927 $this->mParserOutput = $parserCache->get( $this, $parserOptions );
929 if ( $this->mParserOutput !== false ) {
930 wfDebug( __METHOD__ . ": showing parser cache contents\n" );
931 $wgOut->addParserOutput( $this->mParserOutput );
932 # Ensure that UI elements requiring revision ID have
933 # the correct version information.
934 $wgOut->setRevisionId( $this->mLatest );
940 $text = $this->getContent();
941 if ( $text === false || $this->getID() == 0 ) {
942 wfDebug( __METHOD__ . ": showing missing article\n" );
943 $this->showMissingArticle();
944 wfProfileOut( __METHOD__ );
948 # Another whitelist check in case oldid is altering the title
949 if ( !$this->mTitle->userCanRead() ) {
950 wfDebug( __METHOD__ . ": denied on secondary read check\n" );
951 $wgOut->loginToUse();
954 wfProfileOut( __METHOD__ );
958 # Are we looking at an old revision
959 if ( $oldid && !is_null( $this->mRevision ) ) {
960 $this->setOldSubtitle( $oldid );
962 if ( !$this->showDeletedRevisionHeader() ) {
963 wfDebug( __METHOD__ . ": cannot view deleted revision\n" );
964 wfProfileOut( __METHOD__ );
968 # If this "old" version is the current, then try the parser cache...
969 if ( $oldid === $this->getLatest() && $this->useParserCache( false ) ) {
970 $this->mParserOutput = $parserCache->get( $this, $parserOptions );
971 if ( $this->mParserOutput ) {
972 wfDebug( __METHOD__ . ": showing parser cache for current rev permalink\n" );
973 $wgOut->addParserOutput( $this->mParserOutput );
974 $wgOut->setRevisionId( $this->mLatest );
981 # Ensure that UI elements requiring revision ID have
982 # the correct version information.
983 $wgOut->setRevisionId( $this->getRevIdFetched() );
985 # Pages containing custom CSS or JavaScript get special treatment
986 if ( $this->mTitle->isCssOrJsPage() || $this->mTitle->isCssJsSubpage() ) {
987 wfDebug( __METHOD__ . ": showing CSS/JS source\n" );
988 $this->showCssOrJsPage();
991 $rt = Title::newFromRedirectArray( $text );
993 wfDebug( __METHOD__ . ": showing redirect=no page\n" );
994 # Viewing a redirect page (e.g. with parameter redirect=no)
995 # Don't append the subtitle if this was an old revision
996 $wgOut->addHTML( $this->viewRedirect( $rt, !$wasRedirected && $this->isCurrent() ) );
997 # Parse just to get categories, displaytitle, etc.
998 $this->mParserOutput = $wgParser->parse( $text, $this->mTitle, $parserOptions );
999 $wgOut->addParserOutputNoText( $this->mParserOutput );
1005 # Run the parse, protected by a pool counter
1006 wfDebug( __METHOD__ . ": doing uncached parse\n" );
1008 $key = $parserCache->getKey( $this, $parserOptions );
1009 $poolArticleView = new PoolWorkArticleView( $this, $key, $useParserCache, $parserOptions );
1011 if ( !$poolArticleView->execute() ) {
1012 # Connection or timeout error
1013 wfProfileOut( __METHOD__ );
1019 # Should be unreachable, but just in case...
1025 # Adjust the title if it was set by displaytitle, -{T|}- or language conversion
1026 if ( $this->mParserOutput ) {
1027 $titleText = $this->mParserOutput->getTitleText();
1029 if ( strval( $titleText ) !== '' ) {
1030 $wgOut->setPageTitle( $titleText );
1034 # For the main page, overwrite the <title> element with the con-
1035 # tents of 'pagetitle-view-mainpage' instead of the default (if
1036 # that's not empty).
1037 # This message always exists because it is in the i18n files
1038 if ( $this->mTitle->equals( Title::newMainPage() )
1039 && ( $m = wfMsgForContent( 'pagetitle-view-mainpage' ) ) !== '' )
1041 $wgOut->setHTMLTitle( $m );
1044 # Now that we've filled $this->mParserOutput, we know whether
1045 # there are any __NOINDEX__ tags on the page
1046 $policy = $this->getRobotPolicy( 'view' );
1047 $wgOut->setIndexPolicy( $policy['index'] );
1048 $wgOut->setFollowPolicy( $policy['follow'] );
1050 $this->showViewFooter();
1051 $this->viewUpdates();
1052 wfProfileOut( __METHOD__ );
1056 * Show a diff page according to current request variables. For use within
1057 * Article::view() only, other callers should use the DifferenceEngine class.
1059 public function showDiffPage() {
1060 global $wgRequest, $wgUser;
1062 $diff = $wgRequest->getVal( 'diff' );
1063 $rcid = $wgRequest->getVal( 'rcid' );
1064 $diffOnly = $wgRequest->getBool( 'diffonly', $wgUser->getOption( 'diffonly' ) );
1065 $purge = $wgRequest->getVal( 'action' ) == 'purge';
1066 $unhide = $wgRequest->getInt( 'unhide' ) == 1;
1067 $oldid = $this->getOldID();
1069 $de = new DifferenceEngine( $this->mTitle, $oldid, $diff, $rcid, $purge, $unhide );
1070 // DifferenceEngine directly fetched the revision:
1071 $this->mRevIdFetched = $de->mNewid;
1072 $de->showDiffPage( $diffOnly );
1074 // Needed to get the page's current revision
1075 $this->loadPageData();
1076 if ( $diff == 0 || $diff == $this->mLatest ) {
1077 # Run view updates for current revision only
1078 $this->viewUpdates();
1083 * Show a page view for a page formatted as CSS or JavaScript. To be called by
1084 * Article::view() only.
1086 * This is hooked by SyntaxHighlight_GeSHi to do syntax highlighting of these
1089 protected function showCssOrJsPage() {
1092 $wgOut->wrapWikiMsg( "<div id='mw-clearyourcache'>\n$1\n</div>", 'clearyourcache' );
1094 // Give hooks a chance to customise the output
1095 if ( wfRunHooks( 'ShowRawCssJs', array( $this->mContent, $this->mTitle, $wgOut ) ) ) {
1096 // Wrap the whole lot in a <pre> and don't parse
1098 preg_match( '!\.(css|js)$!u', $this->mTitle->getText(), $m );
1099 $wgOut->addHTML( "<pre class=\"mw-code mw-{$m[1]}\" dir=\"ltr\">\n" );
1100 $wgOut->addHTML( htmlspecialchars( $this->mContent ) );
1101 $wgOut->addHTML( "\n</pre>\n" );
1106 * Get the robot policy to be used for the current view
1107 * @param $action String the action= GET parameter
1108 * @return Array the policy that should be set
1109 * TODO: actions other than 'view'
1111 public function getRobotPolicy( $action ) {
1112 global $wgOut, $wgArticleRobotPolicies, $wgNamespaceRobotPolicies;
1113 global $wgDefaultRobotPolicy, $wgRequest;
1115 $ns = $this->mTitle->getNamespace();
1117 if ( $ns == NS_USER || $ns == NS_USER_TALK ) {
1118 # Don't index user and user talk pages for blocked users (bug 11443)
1119 if ( !$this->mTitle->isSubpage() ) {
1120 $block = new Block();
1121 if ( $block->load( $this->mTitle->getText() ) ) {
1123 'index' => 'noindex',
1124 'follow' => 'nofollow'
1130 if ( $this->getID() === 0 || $this->getOldID() ) {
1131 # Non-articles (special pages etc), and old revisions
1133 'index' => 'noindex',
1134 'follow' => 'nofollow'
1136 } elseif ( $wgOut->isPrintable() ) {
1137 # Discourage indexing of printable versions, but encourage following
1139 'index' => 'noindex',
1140 'follow' => 'follow'
1142 } elseif ( $wgRequest->getInt( 'curid' ) ) {
1143 # For ?curid=x urls, disallow indexing
1145 'index' => 'noindex',
1146 'follow' => 'follow'
1150 # Otherwise, construct the policy based on the various config variables.
1151 $policy = self::formatRobotPolicy( $wgDefaultRobotPolicy );
1153 if ( isset( $wgNamespaceRobotPolicies[$ns] ) ) {
1154 # Honour customised robot policies for this namespace
1155 $policy = array_merge(
1157 self::formatRobotPolicy( $wgNamespaceRobotPolicies[$ns] )
1160 if ( $this->mTitle->canUseNoindex() && is_object( $this->mParserOutput ) && $this->mParserOutput->getIndexPolicy() ) {
1161 # __INDEX__ and __NOINDEX__ magic words, if allowed. Incorporates
1162 # a final sanity check that we have really got the parser output.
1163 $policy = array_merge(
1165 array( 'index' => $this->mParserOutput->getIndexPolicy() )
1169 if ( isset( $wgArticleRobotPolicies[$this->mTitle->getPrefixedText()] ) ) {
1170 # (bug 14900) site config can override user-defined __INDEX__ or __NOINDEX__
1171 $policy = array_merge(
1173 self::formatRobotPolicy( $wgArticleRobotPolicies[$this->mTitle->getPrefixedText()] )
1181 * Converts a String robot policy into an associative array, to allow
1182 * merging of several policies using array_merge().
1183 * @param $policy Mixed, returns empty array on null/false/'', transparent
1184 * to already-converted arrays, converts String.
1185 * @return associative Array: 'index' => <indexpolicy>, 'follow' => <followpolicy>
1187 public static function formatRobotPolicy( $policy ) {
1188 if ( is_array( $policy ) ) {
1190 } elseif ( !$policy ) {
1194 $policy = explode( ',', $policy );
1195 $policy = array_map( 'trim', $policy );
1198 foreach ( $policy as $var ) {
1199 if ( in_array( $var, array( 'index', 'noindex' ) ) ) {
1200 $arr['index'] = $var;
1201 } elseif ( in_array( $var, array( 'follow', 'nofollow' ) ) ) {
1202 $arr['follow'] = $var;
1210 * If this request is a redirect view, send "redirected from" subtitle to
1211 * $wgOut. Returns true if the header was needed, false if this is not a
1212 * redirect view. Handles both local and remote redirects.
1216 public function showRedirectedFromHeader() {
1217 global $wgOut, $wgUser, $wgRequest, $wgRedirectSources;
1219 $rdfrom = $wgRequest->getVal( 'rdfrom' );
1220 $sk = $wgUser->getSkin();
1222 if ( isset( $this->mRedirectedFrom ) ) {
1223 // This is an internally redirected page view.
1224 // We'll need a backlink to the source page for navigation.
1225 if ( wfRunHooks( 'ArticleViewRedirect', array( &$this ) ) ) {
1227 $this->mRedirectedFrom,
1230 array( 'redirect' => 'no' ),
1231 array( 'known', 'noclasses' )
1234 $s = wfMsgExt( 'redirectedfrom', array( 'parseinline', 'replaceafter' ), $redir );
1235 $wgOut->setSubtitle( $s );
1237 // Set the fragment if one was specified in the redirect
1238 if ( strval( $this->mTitle->getFragment() ) != '' ) {
1239 $fragment = Xml::escapeJsString( $this->mTitle->getFragmentForURL() );
1240 $wgOut->addInlineScript( "redirectToFragment(\"$fragment\");" );
1243 // Add a <link rel="canonical"> tag
1244 $wgOut->addLink( array( 'rel' => 'canonical',
1245 'href' => $this->mTitle->getLocalURL() )
1250 } elseif ( $rdfrom ) {
1251 // This is an externally redirected view, from some other wiki.
1252 // If it was reported from a trusted site, supply a backlink.
1253 if ( $wgRedirectSources && preg_match( $wgRedirectSources, $rdfrom ) ) {
1254 $redir = $sk->makeExternalLink( $rdfrom, $rdfrom );
1255 $s = wfMsgExt( 'redirectedfrom', array( 'parseinline', 'replaceafter' ), $redir );
1256 $wgOut->setSubtitle( $s );
1266 * Show a header specific to the namespace currently being viewed, like
1267 * [[MediaWiki:Talkpagetext]]. For Article::view().
1269 public function showNamespaceHeader() {
1272 if ( $this->mTitle->isTalkPage() ) {
1273 $msg = wfMsgNoTrans( 'talkpageheader' );
1274 if ( $msg !== '-' && !wfEmptyMsg( 'talkpageheader', $msg ) ) {
1275 $wgOut->wrapWikiMsg( "<div class=\"mw-talkpageheader\">\n$1\n</div>", array( 'talkpageheader' ) );
1281 * Show the footer section of an ordinary page view
1283 public function showViewFooter() {
1284 global $wgOut, $wgUseTrackbacks;
1286 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
1287 if ( $this->mTitle->getNamespace() == NS_USER_TALK && IP::isValid( $this->mTitle->getText() ) ) {
1288 $wgOut->addWikiMsg( 'anontalkpagetext' );
1291 # If we have been passed an &rcid= parameter, we want to give the user a
1292 # chance to mark this new article as patrolled.
1293 $this->showPatrolFooter();
1296 if ( $wgUseTrackbacks ) {
1297 $this->addTrackbacks();
1302 * If patrol is possible, output a patrol UI box. This is called from the
1303 * footer section of ordinary page views. If patrol is not possible or not
1304 * desired, does nothing.
1306 public function showPatrolFooter() {
1307 global $wgOut, $wgRequest, $wgUser;
1309 $rcid = $wgRequest->getVal( 'rcid' );
1311 if ( !$rcid || !$this->mTitle->quickUserCan( 'patrol' ) ) {
1315 $sk = $wgUser->getSkin();
1316 $token = $wgUser->editToken( $rcid );
1317 $wgOut->preventClickjacking();
1320 "<div class='patrollink'>" .
1322 'markaspatrolledlink',
1325 wfMsgHtml( 'markaspatrolledtext' ),
1328 'action' => 'markpatrolled',
1332 array( 'known', 'noclasses' )
1340 * Show the error text for a missing article. For articles in the MediaWiki
1341 * namespace, show the default message text. To be called from Article::view().
1343 public function showMissingArticle() {
1344 global $wgOut, $wgRequest, $wgUser;
1346 # Show info in user (talk) namespace. Does the user exist? Is he blocked?
1347 if ( $this->mTitle->getNamespace() == NS_USER || $this->mTitle->getNamespace() == NS_USER_TALK ) {
1348 $parts = explode( '/', $this->mTitle->getText() );
1349 $rootPart = $parts[0];
1350 $user = User::newFromName( $rootPart, false /* allow IP users*/ );
1351 $ip = User::isIP( $rootPart );
1353 if ( !$user->isLoggedIn() && !$ip ) { # User does not exist
1354 $wgOut->wrapWikiMsg( "<div class=\"mw-userpage-userdoesnotexist error\">\n\$1\n</div>",
1355 array( 'userpage-userdoesnotexist-view', $rootPart ) );
1356 } else if ( $user->isBlocked() ) { # Show log extract if the user is currently blocked
1357 LogEventsList::showLogExtract(
1360 $user->getUserPage()->getPrefixedText(),
1364 'showIfEmpty' => false,
1366 'blocked-notice-logextract',
1367 $user->getName() # Support GENDER in notice
1374 wfRunHooks( 'ShowMissingArticle', array( $this ) );
1376 # Show delete and move logs
1377 LogEventsList::showLogExtract( $wgOut, array( 'delete', 'move' ), $this->mTitle->getPrefixedText(), '',
1379 'conds' => array( "log_action != 'revision'" ),
1380 'showIfEmpty' => false,
1381 'msgKey' => array( 'moveddeleted-notice' ) )
1384 # Show error message
1385 $oldid = $this->getOldID();
1387 $text = wfMsgNoTrans( 'missing-article',
1388 $this->mTitle->getPrefixedText(),
1389 wfMsgNoTrans( 'missingarticle-rev', $oldid ) );
1390 } elseif ( $this->mTitle->getNamespace() === NS_MEDIAWIKI ) {
1391 // Use the default message text
1392 $text = $this->getContent();
1394 $createErrors = $this->mTitle->getUserPermissionsErrors( 'create', $wgUser );
1395 $editErrors = $this->mTitle->getUserPermissionsErrors( 'edit', $wgUser );
1396 $errors = array_merge( $createErrors, $editErrors );
1398 if ( !count( $errors ) ) {
1399 $text = wfMsgNoTrans( 'noarticletext' );
1401 $text = wfMsgNoTrans( 'noarticletext-nopermission' );
1404 $text = "<div class='noarticletext'>\n$text\n</div>";
1406 if ( !$this->hasViewableContent() ) {
1407 // If there's no backing content, send a 404 Not Found
1408 // for better machine handling of broken links.
1409 $wgRequest->response()->header( "HTTP/1.1 404 Not Found" );
1412 $wgOut->addWikiText( $text );
1416 * If the revision requested for view is deleted, check permissions.
1417 * Send either an error message or a warning header to $wgOut.
1419 * @return boolean true if the view is allowed, false if not.
1421 public function showDeletedRevisionHeader() {
1422 global $wgOut, $wgRequest;
1424 if ( !$this->mRevision->isDeleted( Revision::DELETED_TEXT ) ) {
1429 // If the user is not allowed to see it...
1430 if ( !$this->mRevision->userCan( Revision::DELETED_TEXT ) ) {
1431 $wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1432 'rev-deleted-text-permission' );
1435 // If the user needs to confirm that they want to see it...
1436 } else if ( $wgRequest->getInt( 'unhide' ) != 1 ) {
1437 # Give explanation and add a link to view the revision...
1438 $oldid = intval( $this->getOldID() );
1439 $link = $this->mTitle->getFullUrl( "oldid={$oldid}&unhide=1" );
1440 $msg = $this->mRevision->isDeleted( Revision::DELETED_RESTRICTED ) ?
1441 'rev-suppressed-text-unhide' : 'rev-deleted-text-unhide';
1442 $wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n",
1443 array( $msg, $link ) );
1446 // We are allowed to see...
1448 $msg = $this->mRevision->isDeleted( Revision::DELETED_RESTRICTED ) ?
1449 'rev-suppressed-text-view' : 'rev-deleted-text-view';
1450 $wgOut->wrapWikiMsg( "<div class='mw-warning plainlinks'>\n$1\n</div>\n", $msg );
1457 * Should the parser cache be used?
1461 public function useParserCache( $oldid ) {
1462 global $wgUser, $wgEnableParserCache;
1464 return $wgEnableParserCache
1465 && $wgUser->getStubThreshold() == 0
1468 && !$this->mTitle->isCssOrJsPage()
1469 && !$this->mTitle->isCssJsSubpage();
1473 * Execute the uncached parse for action=view
1475 public function doViewParse() {
1478 $oldid = $this->getOldID();
1479 $parserOptions = $this->getParserOptions();
1481 # Render printable version, use printable version cache
1482 $parserOptions->setIsPrintable( $wgOut->isPrintable() );
1484 # Don't show section-edit links on old revisions... this way lies madness.
1485 if ( !$this->isCurrent() || $wgOut->isPrintable() || !$this->mTitle->quickUserCan( 'edit' ) ) {
1486 $parserOptions->setEditSection( false );
1489 $useParserCache = $this->useParserCache( $oldid );
1490 $this->outputWikiText( $this->getContent(), $useParserCache, $parserOptions );
1496 * Try to fetch an expired entry from the parser cache. If it is present,
1497 * output it and return true. If it is not present, output nothing and
1498 * return false. This is used as a callback function for
1499 * PoolCounter::executeProtected().
1503 public function tryDirtyCache() {
1505 $parserCache = ParserCache::singleton();
1506 $options = $this->getParserOptions();
1508 if ( $wgOut->isPrintable() ) {
1509 $options->setIsPrintable( true );
1510 $options->setEditSection( false );
1513 $output = $parserCache->getDirty( $this, $options );
1516 wfDebug( __METHOD__ . ": sending dirty output\n" );
1517 wfDebugLog( 'dirty', "dirty output " . $parserCache->getKey( $this, $options ) . "\n" );
1518 $wgOut->setSquidMaxage( 0 );
1519 $this->mParserOutput = $output;
1520 $wgOut->addParserOutput( $output );
1521 $wgOut->addHTML( "<!-- parser cache is expired, sending anyway due to pool overload-->\n" );
1525 wfDebugLog( 'dirty', "dirty missing\n" );
1526 wfDebug( __METHOD__ . ": no dirty cache\n" );
1535 * @param $target Title object or Array of destination(s) to redirect
1536 * @param $appendSubtitle Boolean [optional]
1537 * @param $forceKnown Boolean: should the image be shown as a bluelink regardless of existence?
1538 * @return string containing HMTL with redirect link
1540 public function viewRedirect( $target, $appendSubtitle = true, $forceKnown = false ) {
1541 global $wgOut, $wgContLang, $wgStylePath, $wgUser;
1543 if ( !is_array( $target ) ) {
1544 $target = array( $target );
1547 $imageDir = $wgContLang->getDir();
1549 if ( $appendSubtitle ) {
1550 $wgOut->appendSubtitle( wfMsgHtml( 'redirectpagesub' ) );
1553 $sk = $wgUser->getSkin();
1554 // the loop prepends the arrow image before the link, so the first case needs to be outside
1555 $title = array_shift( $target );
1557 if ( $forceKnown ) {
1558 $link = $sk->linkKnown( $title, htmlspecialchars( $title->getFullText() ) );
1560 $link = $sk->link( $title, htmlspecialchars( $title->getFullText() ) );
1563 $nextRedirect = $wgStylePath . '/common/images/nextredirect' . $imageDir . '.png';
1564 $alt = $wgContLang->isRTL() ? '←' : '→';
1565 // Automatically append redirect=no to each link, since most of them are redirect pages themselves.
1566 // FIXME: where this happens?
1567 foreach ( $target as $rt ) {
1568 $link .= Html::element( 'img', array( 'src' => $nextRedirect, 'alt' => $alt ) );
1569 if ( $forceKnown ) {
1570 $link .= $sk->linkKnown( $rt, htmlspecialchars( $rt->getFullText() ) );
1572 $link .= $sk->link( $rt, htmlspecialchars( $rt->getFullText() ) );
1576 $imageUrl = $wgStylePath . '/common/images/redirect' . $imageDir . '.png';
1577 return '<div class="redirectMsg">' .
1578 Html::element( 'img', array( 'src' => $imageUrl, 'alt' => '#REDIRECT' ) ) .
1579 '<span class="redirectText">' . $link . '</span></div>';
1583 * Builds trackback links for article display if $wgUseTrackbacks is set to true
1585 public function addTrackbacks() {
1586 global $wgOut, $wgUser;
1588 $dbr = wfGetDB( DB_SLAVE );
1589 $tbs = $dbr->select( 'trackbacks',
1590 array( 'tb_id', 'tb_title', 'tb_url', 'tb_ex', 'tb_name' ),
1591 array( 'tb_page' => $this->getID() )
1594 if ( !$dbr->numRows( $tbs ) ) {
1598 $wgOut->preventClickjacking();
1601 foreach ( $tbs as $o ) {
1604 if ( $wgUser->isAllowed( 'trackback' ) ) {
1605 $delurl = $this->mTitle->getFullURL( "action=deletetrackback&tbid=" .
1606 $o->tb_id . "&token=" . urlencode( $wgUser->editToken() ) );
1607 $rmvtxt = wfMsg( 'trackbackremove', htmlspecialchars( $delurl ) );
1611 $tbtext .= wfMsgNoTrans( strlen( $o->tb_ex ) ? 'trackbackexcerpt' : 'trackback',
1619 $wgOut->wrapWikiMsg( "<div id='mw_trackbacks'>\n$1\n</div>\n", array( 'trackbackbox', $tbtext ) );
1623 * Removes trackback record for current article from trackbacks table
1625 public function deletetrackback() {
1626 global $wgUser, $wgRequest, $wgOut;
1628 if ( !$wgUser->matchEditToken( $wgRequest->getVal( 'token' ) ) ) {
1629 $wgOut->addWikiMsg( 'sessionfailure' );
1634 $permission_errors = $this->mTitle->getUserPermissionsErrors( 'delete', $wgUser );
1636 if ( count( $permission_errors ) ) {
1637 $wgOut->showPermissionsErrorPage( $permission_errors );
1642 $db = wfGetDB( DB_MASTER );
1643 $db->delete( 'trackbacks', array( 'tb_id' => $wgRequest->getInt( 'tbid' ) ) );
1645 $wgOut->addWikiMsg( 'trackbackdeleteok' );
1646 $this->mTitle->invalidateCache();
1650 * Handle action=render
1653 public function render() {
1656 $wgOut->setArticleBodyOnly( true );
1661 * Handle action=purge
1663 public function purge() {
1664 global $wgUser, $wgRequest, $wgOut;
1666 if ( $wgUser->isAllowed( 'purge' ) || $wgRequest->wasPosted() ) {
1667 //FIXME: shouldn't this be in doPurge()?
1668 if ( wfRunHooks( 'ArticlePurge', array( &$this ) ) ) {
1673 $formParams = array(
1675 'action' => $wgRequest->getRequestURL(),
1678 $wgOut->addWikiMsg( 'confirm-purge-top' );
1680 $form = Html::openElement( 'form', $formParams );
1681 $form .= Xml::submitButton( wfMsg( 'confirm_purge_button' ) );
1682 $form .= Html::closeElement( 'form' );
1684 $wgOut->addHTML( $form );
1685 $wgOut->addWikiMsg( 'confirm-purge-bottom' );
1687 $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
1688 $wgOut->setRobotPolicy( 'noindex,nofollow' );
1693 * Perform the actions of a page purging
1695 public function doPurge() {
1698 // Invalidate the cache
1699 $this->mTitle->invalidateCache();
1701 if ( $wgUseSquid ) {
1702 // Commit the transaction before the purge is sent
1703 $dbw = wfGetDB( DB_MASTER );
1707 $update = SquidUpdate::newSimplePurge( $this->mTitle );
1708 $update->doUpdate();
1711 if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
1712 global $wgMessageCache;
1714 if ( $this->getID() == 0 ) {
1717 $text = $this->getRawText();
1720 $wgMessageCache->replace( $this->mTitle->getDBkey(), $text );
1725 * Insert a new empty page record for this article.
1726 * This *must* be followed up by creating a revision
1727 * and running $this->updateRevisionOn( ... );
1728 * or else the record will be left in a funky state.
1729 * Best if all done inside a transaction.
1731 * @param $dbw Database
1732 * @return int The newly created page_id key, or false if the title already existed
1735 public function insertOn( $dbw ) {
1736 wfProfileIn( __METHOD__ );
1738 $page_id = $dbw->nextSequenceValue( 'page_page_id_seq' );
1739 $dbw->insert( 'page', array(
1740 'page_id' => $page_id,
1741 'page_namespace' => $this->mTitle->getNamespace(),
1742 'page_title' => $this->mTitle->getDBkey(),
1743 'page_counter' => 0,
1744 'page_restrictions' => '',
1745 'page_is_redirect' => 0, # Will set this shortly...
1747 'page_random' => wfRandom(),
1748 'page_touched' => $dbw->timestamp(),
1749 'page_latest' => 0, # Fill this in shortly...
1750 'page_len' => 0, # Fill this in shortly...
1751 ), __METHOD__, 'IGNORE' );
1753 $affected = $dbw->affectedRows();
1756 $newid = $dbw->insertId();
1757 $this->mTitle->resetArticleId( $newid );
1759 wfProfileOut( __METHOD__ );
1761 return $affected ? $newid : false;
1765 * Update the page record to point to a newly saved revision.
1767 * @param $dbw DatabaseBase: object
1768 * @param $revision Revision: For ID number, and text used to set
1769 length and redirect status fields
1770 * @param $lastRevision Integer: if given, will not overwrite the page field
1771 * when different from the currently set value.
1772 * Giving 0 indicates the new page flag should be set
1774 * @param $lastRevIsRedirect Boolean: if given, will optimize adding and
1775 * removing rows in redirect table.
1776 * @return bool true on success, false on failure
1779 public function updateRevisionOn( &$dbw, $revision, $lastRevision = null, $lastRevIsRedirect = null ) {
1780 wfProfileIn( __METHOD__ );
1782 $text = $revision->getText();
1783 $rt = Title::newFromRedirectRecurse( $text );
1785 $conditions = array( 'page_id' => $this->getId() );
1787 if ( !is_null( $lastRevision ) ) {
1788 # An extra check against threads stepping on each other
1789 $conditions['page_latest'] = $lastRevision;
1792 $dbw->update( 'page',
1794 'page_latest' => $revision->getId(),
1795 'page_touched' => $dbw->timestamp(),
1796 'page_is_new' => ( $lastRevision === 0 ) ? 1 : 0,
1797 'page_is_redirect' => $rt !== null ? 1 : 0,
1798 'page_len' => strlen( $text ),
1803 $result = $dbw->affectedRows() != 0;
1805 $this->updateRedirectOn( $dbw, $rt, $lastRevIsRedirect );
1808 wfProfileOut( __METHOD__ );
1813 * Add row to the redirect table if this is a redirect, remove otherwise.
1815 * @param $dbw Database
1816 * @param $redirectTitle a title object pointing to the redirect target,
1817 * or NULL if this is not a redirect
1818 * @param $lastRevIsRedirect If given, will optimize adding and
1819 * removing rows in redirect table.
1820 * @return bool true on success, false on failure
1823 public function updateRedirectOn( &$dbw, $redirectTitle, $lastRevIsRedirect = null ) {
1824 // Always update redirects (target link might have changed)
1825 // Update/Insert if we don't know if the last revision was a redirect or not
1826 // Delete if changing from redirect to non-redirect
1827 $isRedirect = !is_null( $redirectTitle );
1829 if ( $isRedirect || is_null( $lastRevIsRedirect ) || $lastRevIsRedirect !== $isRedirect ) {
1830 wfProfileIn( __METHOD__ );
1831 if ( $isRedirect ) {
1832 $this->insertRedirectEntry( $redirectTitle );
1834 // This is not a redirect, remove row from redirect table
1835 $where = array( 'rd_from' => $this->getId() );
1836 $dbw->delete( 'redirect', $where, __METHOD__ );
1839 if ( $this->getTitle()->getNamespace() == NS_FILE ) {
1840 RepoGroup::singleton()->getLocalRepo()->invalidateImageRedirect( $this->getTitle() );
1842 wfProfileOut( __METHOD__ );
1844 return ( $dbw->affectedRows() != 0 );
1851 * If the given revision is newer than the currently set page_latest,
1852 * update the page record. Otherwise, do nothing.
1854 * @param $dbw Database object
1855 * @param $revision Revision object
1858 public function updateIfNewerOn( &$dbw, $revision ) {
1859 wfProfileIn( __METHOD__ );
1861 $row = $dbw->selectRow(
1862 array( 'revision', 'page' ),
1863 array( 'rev_id', 'rev_timestamp', 'page_is_redirect' ),
1865 'page_id' => $this->getId(),
1866 'page_latest=rev_id' ),
1870 if ( wfTimestamp( TS_MW, $row->rev_timestamp ) >= $revision->getTimestamp() ) {
1871 wfProfileOut( __METHOD__ );
1874 $prev = $row->rev_id;
1875 $lastRevIsRedirect = (bool)$row->page_is_redirect;
1877 # No or missing previous revision; mark the page as new
1879 $lastRevIsRedirect = null;
1882 $ret = $this->updateRevisionOn( $dbw, $revision, $prev, $lastRevIsRedirect );
1884 wfProfileOut( __METHOD__ );
1889 * @param $section empty/null/false or a section number (0, 1, 2, T1, T2...)
1890 * @param $text String: new text of the section
1891 * @param $summary String: new section's subject, only if $section is 'new'
1892 * @param $edittime String: revision timestamp or null to use the current revision
1893 * @return string Complete article text, or null if error
1895 public function replaceSection( $section, $text, $summary = '', $edittime = null ) {
1896 wfProfileIn( __METHOD__ );
1898 if ( strval( $section ) == '' ) {
1899 // Whole-page edit; let the whole text through
1901 if ( is_null( $edittime ) ) {
1902 $rev = Revision::newFromTitle( $this->mTitle );
1904 $dbw = wfGetDB( DB_MASTER );
1905 $rev = Revision::loadFromTimestamp( $dbw, $this->mTitle, $edittime );
1909 wfDebug( "Article::replaceSection asked for bogus section (page: " .
1910 $this->getId() . "; section: $section; edittime: $edittime)\n" );
1911 wfProfileOut( __METHOD__ );
1915 $oldtext = $rev->getText();
1917 if ( $section == 'new' ) {
1918 # Inserting a new section
1919 $subject = $summary ? wfMsgForContent( 'newsectionheaderdefaultlevel', $summary ) . "\n\n" : '';
1920 $text = strlen( trim( $oldtext ) ) > 0
1921 ? "{$oldtext}\n\n{$subject}{$text}"
1922 : "{$subject}{$text}";
1924 # Replacing an existing section; roll out the big guns
1927 $text = $wgParser->replaceSection( $oldtext, $section, $text );
1931 wfProfileOut( __METHOD__ );
1936 * This function is not deprecated until somebody fixes the core not to use
1937 * it. Nevertheless, use Article::doEdit() instead.
1939 function insertNewArticle( $text, $summary, $isminor, $watchthis, $suppressRC = false, $comment = false, $bot = false ) {
1940 $flags = EDIT_NEW | EDIT_DEFER_UPDATES | EDIT_AUTOSUMMARY |
1941 ( $isminor ? EDIT_MINOR : 0 ) |
1942 ( $suppressRC ? EDIT_SUPPRESS_RC : 0 ) |
1943 ( $bot ? EDIT_FORCE_BOT : 0 );
1945 # If this is a comment, add the summary as headline
1946 if ( $comment && $summary != "" ) {
1947 $text = wfMsgForContent( 'newsectionheaderdefaultlevel', $summary ) . "\n\n" . $text;
1949 $this->doEdit( $text, $summary, $flags );
1951 $dbw = wfGetDB( DB_MASTER );
1953 if ( !$this->mTitle->userIsWatching() ) {
1959 if ( $this->mTitle->userIsWatching() ) {
1965 $this->doRedirect( $this->isRedirect( $text ) );
1969 * @deprecated use Article::doEdit()
1971 function updateArticle( $text, $summary, $minor, $watchthis, $forceBot = false, $sectionanchor = '' ) {
1972 $flags = EDIT_UPDATE | EDIT_DEFER_UPDATES | EDIT_AUTOSUMMARY |
1973 ( $minor ? EDIT_MINOR : 0 ) |
1974 ( $forceBot ? EDIT_FORCE_BOT : 0 );
1976 $status = $this->doEdit( $text, $summary, $flags );
1978 if ( !$status->isOK() ) {
1982 $dbw = wfGetDB( DB_MASTER );
1984 if ( !$this->mTitle->userIsWatching() ) {
1990 if ( $this->mTitle->userIsWatching() ) {
1997 $extraQuery = ''; // Give extensions a chance to modify URL query on update
1998 wfRunHooks( 'ArticleUpdateBeforeRedirect', array( $this, &$sectionanchor, &$extraQuery ) );
2000 $this->doRedirect( $this->isRedirect( $text ), $sectionanchor, $extraQuery );
2005 * Check flags and add EDIT_NEW or EDIT_UPDATE to them as needed.
2007 * @return Int updated $flags
2009 function checkFlags( $flags ) {
2010 if ( !( $flags & EDIT_NEW ) && !( $flags & EDIT_UPDATE ) ) {
2011 if ( $this->mTitle->getArticleID() ) {
2012 $flags |= EDIT_UPDATE;
2024 * Change an existing article or create a new article. Updates RC and all necessary caches,
2025 * optionally via the deferred update array.
2027 * $wgUser must be set before calling this function.
2029 * @param $text String: new text
2030 * @param $summary String: edit summary
2031 * @param $flags Integer bitfield:
2033 * Article is known or assumed to be non-existent, create a new one
2035 * Article is known or assumed to be pre-existing, update it
2037 * Mark this edit minor, if the user is allowed to do so
2039 * Do not log the change in recentchanges
2041 * Mark the edit a "bot" edit regardless of user rights
2042 * EDIT_DEFER_UPDATES
2043 * Defer some of the updates until the end of index.php
2045 * Fill in blank summaries with generated text where possible
2047 * If neither EDIT_NEW nor EDIT_UPDATE is specified, the status of the article will be detected.
2048 * If EDIT_UPDATE is specified and the article doesn't exist, the function will an
2049 * edit-gone-missing error. If EDIT_NEW is specified and the article does exist, an
2050 * edit-already-exists error will be returned. These two conditions are also possible with
2051 * auto-detection due to MediaWiki's performance-optimised locking strategy.
2053 * @param $baseRevId the revision ID this edit was based off, if any
2054 * @param $user Optional user object, $wgUser will be used if not passed
2056 * @return Status object. Possible errors:
2057 * edit-hook-aborted: The ArticleSave hook aborted the edit but didn't set the fatal flag of $status
2058 * edit-gone-missing: In update mode, but the article didn't exist
2059 * edit-conflict: In update mode, the article changed unexpectedly
2060 * edit-no-change: Warning that the text was the same as before
2061 * edit-already-exists: In creation mode, but the article already exists
2063 * Extensions may define additional errors.
2065 * $return->value will contain an associative array with members as follows:
2066 * new: Boolean indicating if the function attempted to create a new article
2067 * revision: The revision object for the inserted revision, or null
2069 * Compatibility note: this function previously returned a boolean value indicating success/failure
2071 public function doEdit( $text, $summary, $flags = 0, $baseRevId = false, $user = null ) {
2072 global $wgUser, $wgDBtransactions, $wgUseAutomaticEditSummaries;
2074 # Low-level sanity check
2075 if ( $this->mTitle->getText() === '' ) {
2076 throw new MWException( 'Something is trying to edit an article with an empty title' );
2079 wfProfileIn( __METHOD__ );
2081 $user = is_null( $user ) ? $wgUser : $user;
2082 $status = Status::newGood( array() );
2084 # Load $this->mTitle->getArticleID() and $this->mLatest if it's not already
2085 $this->loadPageData();
2087 $flags = $this->checkFlags( $flags );
2089 if ( !wfRunHooks( 'ArticleSave', array( &$this, &$user, &$text, &$summary,
2090 $flags & EDIT_MINOR, null, null, &$flags, &$status ) ) )
2092 wfDebug( __METHOD__ . ": ArticleSave hook aborted save!\n" );
2094 if ( $status->isOK() ) {
2095 $status->fatal( 'edit-hook-aborted' );
2098 wfProfileOut( __METHOD__ );
2102 # Silently ignore EDIT_MINOR if not allowed
2103 $isminor = ( $flags & EDIT_MINOR ) && $user->isAllowed( 'minoredit' );
2104 $bot = $flags & EDIT_FORCE_BOT;
2106 $oldtext = $this->getRawText(); // current revision
2107 $oldsize = strlen( $oldtext );
2109 # Provide autosummaries if one is not provided and autosummaries are enabled.
2110 if ( $wgUseAutomaticEditSummaries && $flags & EDIT_AUTOSUMMARY && $summary == '' ) {
2111 $summary = $this->getAutosummary( $oldtext, $text, $flags );
2114 $editInfo = $this->prepareTextForEdit( $text );
2115 $text = $editInfo->pst;
2116 $newsize = strlen( $text );
2118 $dbw = wfGetDB( DB_MASTER );
2119 $now = wfTimestampNow();
2120 $this->mTimestamp = $now;
2122 if ( $flags & EDIT_UPDATE ) {
2123 # Update article, but only if changed.
2124 $status->value['new'] = false;
2126 # Make sure the revision is either completely inserted or not inserted at all
2127 if ( !$wgDBtransactions ) {
2128 $userAbort = ignore_user_abort( true );
2131 $changed = ( strcmp( $text, $oldtext ) != 0 );
2134 $this->mGoodAdjustment = (int)$this->isCountable( $text )
2135 - (int)$this->isCountable( $oldtext );
2136 $this->mTotalAdjustment = 0;
2138 if ( !$this->mLatest ) {
2139 # Article gone missing
2140 wfDebug( __METHOD__ . ": EDIT_UPDATE specified but article doesn't exist\n" );
2141 $status->fatal( 'edit-gone-missing' );
2143 wfProfileOut( __METHOD__ );
2147 $revision = new Revision( array(
2148 'page' => $this->getId(),
2149 'comment' => $summary,
2150 'minor_edit' => $isminor,
2152 'parent_id' => $this->mLatest,
2153 'user' => $user->getId(),
2154 'user_text' => $user->getName(),
2158 $revisionId = $revision->insertOn( $dbw );
2162 # Note that we use $this->mLatest instead of fetching a value from the master DB
2163 # during the course of this function. This makes sure that EditPage can detect
2164 # edit conflicts reliably, either by $ok here, or by $article->getTimestamp()
2165 # before this function is called. A previous function used a separate query, this
2166 # creates a window where concurrent edits can cause an ignored edit conflict.
2167 $ok = $this->updateRevisionOn( $dbw, $revision, $this->mLatest );
2170 /* Belated edit conflict! Run away!! */
2171 $status->fatal( 'edit-conflict' );
2173 # Delete the invalid revision if the DB is not transactional
2174 if ( !$wgDBtransactions ) {
2175 $dbw->delete( 'revision', array( 'rev_id' => $revisionId ), __METHOD__ );
2181 global $wgUseRCPatrol;
2182 wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $revision, $baseRevId, $user ) );
2183 # Update recentchanges
2184 if ( !( $flags & EDIT_SUPPRESS_RC ) ) {
2185 # Mark as patrolled if the user can do so
2186 $patrolled = $wgUseRCPatrol && $this->mTitle->userCan( 'autopatrol' );
2187 # Add RC row to the DB
2188 $rc = RecentChange::notifyEdit( $now, $this->mTitle, $isminor, $user, $summary,
2189 $this->mLatest, $this->getTimestamp(), $bot, '', $oldsize, $newsize,
2190 $revisionId, $patrolled
2193 # Log auto-patrolled edits
2195 PatrolLog::record( $rc, true );
2198 $user->incEditCount();
2202 $status->warning( 'edit-no-change' );
2204 // Keep the same revision ID, but do some updates on it
2205 $revisionId = $this->getRevIdFetched();
2206 // Update page_touched, this is usually implicit in the page update
2207 // Other cache updates are done in onArticleEdit()
2208 $this->mTitle->invalidateCache();
2211 if ( !$wgDBtransactions ) {
2212 ignore_user_abort( $userAbort );
2215 // Now that ignore_user_abort is restored, we can respond to fatal errors
2216 if ( !$status->isOK() ) {
2217 wfProfileOut( __METHOD__ );
2221 # Invalidate cache of this article and all pages using this article
2222 # as a template. Partly deferred.
2223 Article::onArticleEdit( $this->mTitle );
2224 # Update links tables, site stats, etc.
2225 $this->editUpdates( $text, $summary, $isminor, $now, $revisionId, $changed );
2227 # Create new article
2228 $status->value['new'] = true;
2230 # Set statistics members
2231 # We work out if it's countable after PST to avoid counter drift
2232 # when articles are created with {{subst:}}
2233 $this->mGoodAdjustment = (int)$this->isCountable( $text );
2234 $this->mTotalAdjustment = 1;
2238 # Add the page record; stake our claim on this title!
2239 # This will return false if the article already exists
2240 $newid = $this->insertOn( $dbw );
2242 if ( $newid === false ) {
2244 $status->fatal( 'edit-already-exists' );
2246 wfProfileOut( __METHOD__ );
2250 # Save the revision text...
2251 $revision = new Revision( array(
2253 'comment' => $summary,
2254 'minor_edit' => $isminor,
2256 'user' => $user->getId(),
2257 'user_text' => $user->getName(),
2259 $revisionId = $revision->insertOn( $dbw );
2261 $this->mTitle->resetArticleID( $newid );
2263 # Update the page record with revision data
2264 $this->updateRevisionOn( $dbw, $revision, 0 );
2266 wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $revision, false, $user ) );
2268 # Update recentchanges
2269 if ( !( $flags & EDIT_SUPPRESS_RC ) ) {
2270 global $wgUseRCPatrol, $wgUseNPPatrol;
2272 # Mark as patrolled if the user can do so
2273 $patrolled = ( $wgUseRCPatrol || $wgUseNPPatrol ) && $this->mTitle->userCan( 'autopatrol' );
2274 # Add RC row to the DB
2275 $rc = RecentChange::notifyNew( $now, $this->mTitle, $isminor, $user, $summary, $bot,
2276 '', strlen( $text ), $revisionId, $patrolled );
2278 # Log auto-patrolled edits
2280 PatrolLog::record( $rc, true );
2283 $user->incEditCount();
2286 # Update links, etc.
2287 $this->editUpdates( $text, $summary, $isminor, $now, $revisionId, true );
2290 Article::onArticleCreate( $this->mTitle );
2292 wfRunHooks( 'ArticleInsertComplete', array( &$this, &$user, $text, $summary,
2293 $flags & EDIT_MINOR, null, null, &$flags, $revision ) );
2296 # Do updates right now unless deferral was requested
2297 if ( !( $flags & EDIT_DEFER_UPDATES ) ) {
2301 // Return the new revision (or null) to the caller
2302 $status->value['revision'] = $revision;
2304 wfRunHooks( 'ArticleSaveComplete', array( &$this, &$user, $text, $summary,
2305 $flags & EDIT_MINOR, null, null, &$flags, $revision, &$status, $baseRevId ) );
2307 wfProfileOut( __METHOD__ );
2312 * @deprecated wrapper for doRedirect
2314 public function showArticle( $text, $subtitle , $sectionanchor = '', $me2, $now, $summary, $oldid ) {
2315 wfDeprecated( __METHOD__ );
2316 $this->doRedirect( $this->isRedirect( $text ), $sectionanchor );
2320 * Output a redirect back to the article.
2321 * This is typically used after an edit.
2323 * @param $noRedir Boolean: add redirect=no
2324 * @param $sectionAnchor String: section to redirect to, including "#"
2325 * @param $extraQuery String: extra query params
2327 public function doRedirect( $noRedir = false, $sectionAnchor = '', $extraQuery = '' ) {
2331 $query = 'redirect=no';
2333 $query .= "&$extraQuery";
2335 $query = $extraQuery;
2338 $wgOut->redirect( $this->mTitle->getFullURL( $query ) . $sectionAnchor );
2342 * Mark this particular edit/page as patrolled
2344 public function markpatrolled() {
2345 global $wgOut, $wgUser, $wgRequest;
2347 $wgOut->setRobotPolicy( 'noindex,nofollow' );
2349 # If we haven't been given an rc_id value, we can't do anything
2350 $rcid = (int) $wgRequest->getVal( 'rcid' );
2352 if ( !$wgUser->matchEditToken( $wgRequest->getVal( 'token' ), $rcid ) ) {
2353 $wgOut->showErrorPage( 'sessionfailure-title', 'sessionfailure' );
2357 $rc = RecentChange::newFromId( $rcid );
2359 if ( is_null( $rc ) ) {
2360 $wgOut->showErrorPage( 'markedaspatrollederror', 'markedaspatrollederrortext' );
2364 # It would be nice to see where the user had actually come from, but for now just guess
2365 $returnto = $rc->getAttribute( 'rc_type' ) == RC_NEW ? 'Newpages' : 'Recentchanges';
2366 $return = SpecialPage::getTitleFor( $returnto );
2368 $errors = $rc->doMarkPatrolled();
2370 if ( in_array( array( 'rcpatroldisabled' ), $errors ) ) {
2371 $wgOut->showErrorPage( 'rcpatroldisabled', 'rcpatroldisabledtext' );
2376 if ( in_array( array( 'hookaborted' ), $errors ) ) {
2377 // The hook itself has handled any output
2381 if ( in_array( array( 'markedaspatrollederror-noautopatrol' ), $errors ) ) {
2382 $wgOut->setPageTitle( wfMsg( 'markedaspatrollederror' ) );
2383 $wgOut->addWikiMsg( 'markedaspatrollederror-noautopatrol' );
2384 $wgOut->returnToMain( false, $return );
2389 if ( !empty( $errors ) ) {
2390 $wgOut->showPermissionsErrorPage( $errors );
2396 $wgOut->setPageTitle( wfMsg( 'markedaspatrolled' ) );
2397 $wgOut->addWikiMsg( 'markedaspatrolledtext', $rc->getTitle()->getPrefixedText() );
2398 $wgOut->returnToMain( false, $return );
2402 * User-interface handler for the "watch" action
2404 public function watch() {
2405 global $wgUser, $wgOut;
2407 if ( $wgUser->isAnon() ) {
2408 $wgOut->showErrorPage( 'watchnologin', 'watchnologintext' );
2412 if ( wfReadOnly() ) {
2413 $wgOut->readOnlyPage();
2417 if ( $this->doWatch() ) {
2418 $wgOut->setPagetitle( wfMsg( 'addedwatch' ) );
2419 $wgOut->setRobotPolicy( 'noindex,nofollow' );
2420 $wgOut->addWikiMsg( 'addedwatchtext', $this->mTitle->getPrefixedText() );
2423 $wgOut->returnToMain( true, $this->mTitle->getPrefixedText() );
2427 * Add this page to $wgUser's watchlist
2429 * This is safe to be called multiple times
2431 * @return bool true on successful watch operation
2433 public function doWatch() {
2436 if ( $wgUser->isAnon() ) {
2440 if ( wfRunHooks( 'WatchArticle', array( &$wgUser, &$this ) ) ) {
2441 $wgUser->addWatch( $this->mTitle );
2442 return wfRunHooks( 'WatchArticleComplete', array( &$wgUser, &$this ) );
2449 * User interface handler for the "unwatch" action.
2451 public function unwatch() {
2452 global $wgUser, $wgOut;
2454 if ( $wgUser->isAnon() ) {
2455 $wgOut->showErrorPage( 'watchnologin', 'watchnologintext' );
2459 if ( wfReadOnly() ) {
2460 $wgOut->readOnlyPage();
2464 if ( $this->doUnwatch() ) {
2465 $wgOut->setPagetitle( wfMsg( 'removedwatch' ) );
2466 $wgOut->setRobotPolicy( 'noindex,nofollow' );
2467 $wgOut->addWikiMsg( 'removedwatchtext', $this->mTitle->getPrefixedText() );
2470 $wgOut->returnToMain( true, $this->mTitle->getPrefixedText() );
2474 * Stop watching a page
2475 * @return bool true on successful unwatch
2477 public function doUnwatch() {
2480 if ( $wgUser->isAnon() ) {
2484 if ( wfRunHooks( 'UnwatchArticle', array( &$wgUser, &$this ) ) ) {
2485 $wgUser->removeWatch( $this->mTitle );
2486 return wfRunHooks( 'UnwatchArticleComplete', array( &$wgUser, &$this ) );
2493 * action=protect handler
2495 public function protect() {
2496 $form = new ProtectionForm( $this );
2501 * action=unprotect handler (alias)
2503 public function unprotect() {
2508 * Update the article's restriction field, and leave a log entry.
2510 * @param $limit Array: set of restriction keys
2511 * @param $reason String
2512 * @param &$cascade Integer. Set to false if cascading protection isn't allowed.
2513 * @param $expiry Array: per restriction type expiration
2514 * @return bool true on success
2516 public function updateRestrictions( $limit = array(), $reason = '', &$cascade = 0, $expiry = array() ) {
2517 global $wgUser, $wgContLang;
2519 $restrictionTypes = $this->mTitle->getRestrictionTypes();
2521 $id = $this->mTitle->getArticleID();
2524 wfDebug( "updateRestrictions failed: article id $id <= 0\n" );
2528 if ( wfReadOnly() ) {
2529 wfDebug( "updateRestrictions failed: read-only\n" );
2533 if ( !$this->mTitle->userCan( 'protect' ) ) {
2534 wfDebug( "updateRestrictions failed: insufficient permissions\n" );
2542 // Take this opportunity to purge out expired restrictions
2543 Title::purgeExpiredRestrictions();
2545 # FIXME: Same limitations as described in ProtectionForm.php (line 37);
2546 # we expect a single selection, but the schema allows otherwise.
2548 $updated = Article::flattenRestrictions( $limit );
2551 foreach ( $restrictionTypes as $action ) {
2552 if ( isset( $expiry[$action] ) ) {
2553 # Get current restrictions on $action
2554 $aLimits = $this->mTitle->getRestrictions( $action );
2555 $current[$action] = implode( '', $aLimits );
2556 # Are any actual restrictions being dealt with here?
2557 $aRChanged = count( $aLimits ) || !empty( $limit[$action] );
2559 # If something changed, we need to log it. Checking $aRChanged
2560 # assures that "unprotecting" a page that is not protected does
2561 # not log just because the expiry was "changed".
2562 if ( $aRChanged && $this->mTitle->mRestrictionsExpiry[$action] != $expiry[$action] ) {
2568 $current = Article::flattenRestrictions( $current );
2570 $changed = ( $changed || $current != $updated );
2571 $changed = $changed || ( $updated && $this->mTitle->areRestrictionsCascading() != $cascade );
2572 $protect = ( $updated != '' );
2574 # If nothing's changed, do nothing
2576 if ( wfRunHooks( 'ArticleProtect', array( &$this, &$wgUser, $limit, $reason ) ) ) {
2577 $dbw = wfGetDB( DB_MASTER );
2579 # Prepare a null revision to be added to the history
2580 $modified = $current != '' && $protect;
2583 $comment_type = $modified ? 'modifiedarticleprotection' : 'protectedarticle';
2585 $comment_type = 'unprotectedarticle';
2588 $comment = $wgContLang->ucfirst( wfMsgForContent( $comment_type, $this->mTitle->getPrefixedText() ) );
2590 # Only restrictions with the 'protect' right can cascade...
2591 # Otherwise, people who cannot normally protect can "protect" pages via transclusion
2592 $editrestriction = isset( $limit['edit'] ) ? array( $limit['edit'] ) : $this->mTitle->getRestrictions( 'edit' );
2594 # The schema allows multiple restrictions
2595 if ( !in_array( 'protect', $editrestriction ) && !in_array( 'sysop', $editrestriction ) ) {
2599 $cascade_description = '';
2602 $cascade_description = ' [' . wfMsgForContent( 'protect-summary-cascade' ) . ']';
2606 $comment .= ": $reason";
2609 $editComment = $comment;
2610 $encodedExpiry = array();
2611 $protect_description = '';
2612 foreach ( $limit as $action => $restrictions ) {
2613 if ( !isset( $expiry[$action] ) )
2614 $expiry[$action] = Block::infinity();
2616 $encodedExpiry[$action] = Block::encodeExpiry( $expiry[$action], $dbw );
2617 if ( $restrictions != '' ) {
2618 $protect_description .= "[$action=$restrictions] (";
2619 if ( $encodedExpiry[$action] != 'infinity' ) {
2620 $protect_description .= wfMsgForContent( 'protect-expiring',
2621 $wgContLang->timeanddate( $expiry[$action], false, false ) ,
2622 $wgContLang->date( $expiry[$action], false, false ) ,
2623 $wgContLang->time( $expiry[$action], false, false ) );
2625 $protect_description .= wfMsgForContent( 'protect-expiry-indefinite' );
2628 $protect_description .= ') ';
2631 $protect_description = trim( $protect_description );
2633 if ( $protect_description && $protect ) {
2634 $editComment .= " ($protect_description)";
2638 $editComment .= "$cascade_description";
2641 # Update restrictions table
2642 foreach ( $limit as $action => $restrictions ) {
2643 if ( $restrictions != '' ) {
2644 $dbw->replace( 'page_restrictions', array( array( 'pr_page', 'pr_type' ) ),
2645 array( 'pr_page' => $id,
2646 'pr_type' => $action,
2647 'pr_level' => $restrictions,
2648 'pr_cascade' => ( $cascade && $action == 'edit' ) ? 1 : 0,
2649 'pr_expiry' => $encodedExpiry[$action]
2654 $dbw->delete( 'page_restrictions', array( 'pr_page' => $id,
2655 'pr_type' => $action ), __METHOD__ );
2659 # Insert a null revision
2660 $nullRevision = Revision::newNullRevision( $dbw, $id, $editComment, true );
2661 $nullRevId = $nullRevision->insertOn( $dbw );
2663 $latest = $this->getLatest();
2664 # Update page record
2665 $dbw->update( 'page',
2667 'page_touched' => $dbw->timestamp(),
2668 'page_restrictions' => '',
2669 'page_latest' => $nullRevId
2670 ), array( /* WHERE */
2672 ), 'Article::protect'
2675 wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $nullRevision, $latest, $wgUser ) );
2676 wfRunHooks( 'ArticleProtectComplete', array( &$this, &$wgUser, $limit, $reason ) );
2678 # Update the protection log
2679 $log = new LogPage( 'protect' );
2681 $params = array( $protect_description, $cascade ? 'cascade' : '' );
2682 $log->addEntry( $modified ? 'modify' : 'protect', $this->mTitle, trim( $reason ), $params );
2684 $log->addEntry( 'unprotect', $this->mTitle, $reason );
2687 } # End "changed" check
2693 * Take an array of page restrictions and flatten it to a string
2694 * suitable for insertion into the page_restrictions field.
2695 * @param $limit Array
2698 protected static function flattenRestrictions( $limit ) {
2699 if ( !is_array( $limit ) ) {
2700 throw new MWException( 'Article::flattenRestrictions given non-array restriction set' );
2706 foreach ( $limit as $action => $restrictions ) {
2707 if ( $restrictions != '' ) {
2708 $bits[] = "$action=$restrictions";
2712 return implode( ':', $bits );
2716 * Auto-generates a deletion reason
2718 * @param &$hasHistory Boolean: whether the page has a history
2719 * @return mixed String containing deletion reason or empty string, or boolean false
2720 * if no revision occurred
2722 public function generateReason( &$hasHistory ) {
2725 $dbw = wfGetDB( DB_MASTER );
2726 // Get the last revision
2727 $rev = Revision::newFromTitle( $this->mTitle );
2729 if ( is_null( $rev ) ) {
2733 // Get the article's contents
2734 $contents = $rev->getText();
2737 // If the page is blank, use the text from the previous revision,
2738 // which can only be blank if there's a move/import/protect dummy revision involved
2739 if ( $contents == '' ) {
2740 $prev = $rev->getPrevious();
2743 $contents = $prev->getText();
2748 // Find out if there was only one contributor
2749 // Only scan the last 20 revisions
2750 $res = $dbw->select( 'revision', 'rev_user_text',
2751 array( 'rev_page' => $this->getID(), $dbw->bitAnd( 'rev_deleted', Revision::DELETED_USER ) . ' = 0' ),
2753 array( 'LIMIT' => 20 )
2756 if ( $res === false ) {
2757 // This page has no revisions, which is very weird
2761 $hasHistory = ( $res->numRows() > 1 );
2762 $row = $dbw->fetchObject( $res );
2764 if ( $row ) { // $row is false if the only contributor is hidden
2765 $onlyAuthor = $row->rev_user_text;
2766 // Try to find a second contributor
2767 foreach ( $res as $row ) {
2768 if ( $row->rev_user_text != $onlyAuthor ) { // Bug 22999
2769 $onlyAuthor = false;
2774 $onlyAuthor = false;
2777 // Generate the summary with a '$1' placeholder
2779 // The current revision is blank and the one before is also
2780 // blank. It's just not our lucky day
2781 $reason = wfMsgForContent( 'exbeforeblank', '$1' );
2783 if ( $onlyAuthor ) {
2784 $reason = wfMsgForContent( 'excontentauthor', '$1', $onlyAuthor );
2786 $reason = wfMsgForContent( 'excontent', '$1' );
2790 if ( $reason == '-' ) {
2791 // Allow these UI messages to be blanked out cleanly
2795 // Replace newlines with spaces to prevent uglyness
2796 $contents = preg_replace( "/[\n\r]/", ' ', $contents );
2797 // Calculate the maximum amount of chars to get
2798 // Max content length = max comment length - length of the comment (excl. $1) - '...'
2799 $maxLength = 255 - ( strlen( $reason ) - 2 ) - 3;
2800 $contents = $wgContLang->truncate( $contents, $maxLength );
2801 // Remove possible unfinished links
2802 $contents = preg_replace( '/\[\[([^\]]*)\]?$/', '$1', $contents );
2803 // Now replace the '$1' placeholder
2804 $reason = str_replace( '$1', $contents, $reason );
2811 * UI entry point for page deletion
2813 public function delete() {
2814 global $wgUser, $wgOut, $wgRequest;
2816 $confirm = $wgRequest->wasPosted() &&
2817 $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ) );
2819 $this->DeleteReasonList = $wgRequest->getText( 'wpDeleteReasonList', 'other' );
2820 $this->DeleteReason = $wgRequest->getText( 'wpReason' );
2822 $reason = $this->DeleteReasonList;
2824 if ( $reason != 'other' && $this->DeleteReason != '' ) {
2825 // Entry from drop down menu + additional comment
2826 $reason .= wfMsgForContent( 'colon-separator' ) . $this->DeleteReason;
2827 } elseif ( $reason == 'other' ) {
2828 $reason = $this->DeleteReason;
2831 # Flag to hide all contents of the archived revisions
2832 $suppress = $wgRequest->getVal( 'wpSuppress' ) && $wgUser->isAllowed( 'suppressrevision' );
2834 # This code desperately needs to be totally rewritten
2836 # Read-only check...
2837 if ( wfReadOnly() ) {
2838 $wgOut->readOnlyPage();
2844 $permission_errors = $this->mTitle->getUserPermissionsErrors( 'delete', $wgUser );
2846 if ( count( $permission_errors ) > 0 ) {
2847 $wgOut->showPermissionsErrorPage( $permission_errors );
2852 $wgOut->setPagetitle( wfMsg( 'delete-confirm', $this->mTitle->getPrefixedText() ) );
2854 # Better double-check that it hasn't been deleted yet!
2855 $dbw = wfGetDB( DB_MASTER );
2856 $conds = $this->mTitle->pageCond();
2857 $latest = $dbw->selectField( 'page', 'page_latest', $conds, __METHOD__ );
2858 if ( $latest === false ) {
2859 $wgOut->showFatalError(
2862 array( 'class' => 'error mw-error-cannotdelete' ),
2863 wfMsgExt( 'cannotdelete', array( 'parse' ), $this->mTitle->getPrefixedText() )
2866 $wgOut->addHTML( Xml::element( 'h2', null, LogPage::logName( 'delete' ) ) );
2867 LogEventsList::showLogExtract(
2870 $this->mTitle->getPrefixedText()
2876 # Hack for big sites
2877 $bigHistory = $this->isBigDeletion();
2878 if ( $bigHistory && !$this->mTitle->userCan( 'bigdelete' ) ) {
2879 global $wgLang, $wgDeleteRevisionsLimit;
2881 $wgOut->wrapWikiMsg( "<div class='error'>\n$1\n</div>\n",
2882 array( 'delete-toobig', $wgLang->formatNum( $wgDeleteRevisionsLimit ) ) );
2888 $this->doDelete( $reason, $suppress );
2890 if ( $wgRequest->getCheck( 'wpWatch' ) && $wgUser->isLoggedIn() ) {
2892 } elseif ( $this->mTitle->userIsWatching() ) {
2899 // Generate deletion reason
2900 $hasHistory = false;
2902 $reason = $this->generateReason( $hasHistory );
2905 // If the page has a history, insert a warning
2906 if ( $hasHistory && !$confirm ) {
2909 $skin = $wgUser->getSkin();
2910 $revisions = $this->estimateRevisionCount();
2912 $wgOut->addHTML( '<strong class="mw-delete-warning-revisions">' .
2913 wfMsgExt( 'historywarning', array( 'parseinline' ), $wgLang->formatNum( $revisions ) ) .
2914 wfMsgHtml( 'word-separator' ) . $skin->historyLink() .
2918 if ( $bigHistory ) {
2919 global $wgDeleteRevisionsLimit;
2920 $wgOut->wrapWikiMsg( "<div class='error'>\n$1\n</div>\n",
2921 array( 'delete-warning-toobig', $wgLang->formatNum( $wgDeleteRevisionsLimit ) ) );
2925 return $this->confirmDelete( $reason );
2929 * @return bool whether or not the page surpasses $wgDeleteRevisionsLimit revisions
2931 public function isBigDeletion() {
2932 global $wgDeleteRevisionsLimit;
2934 if ( $wgDeleteRevisionsLimit ) {
2935 $revCount = $this->estimateRevisionCount();
2937 return $revCount > $wgDeleteRevisionsLimit;
2944 * @return int approximate revision count
2946 public function estimateRevisionCount() {
2947 $dbr = wfGetDB( DB_SLAVE );
2949 // For an exact count...
2950 // return $dbr->selectField( 'revision', 'COUNT(*)',
2951 // array( 'rev_page' => $this->getId() ), __METHOD__ );
2952 return $dbr->estimateRowCount( 'revision', '*',
2953 array( 'rev_page' => $this->getId() ), __METHOD__ );
2957 * Get the last N authors
2958 * @param $num Integer: number of revisions to get
2959 * @param $revLatest String: the latest rev_id, selected from the master (optional)
2960 * @return array Array of authors, duplicates not removed
2962 public function getLastNAuthors( $num, $revLatest = 0 ) {
2963 wfProfileIn( __METHOD__ );
2964 // First try the slave
2965 // If that doesn't have the latest revision, try the master
2967 $db = wfGetDB( DB_SLAVE );
2970 $res = $db->select( array( 'page', 'revision' ),
2971 array( 'rev_id', 'rev_user_text' ),
2973 'page_namespace' => $this->mTitle->getNamespace(),
2974 'page_title' => $this->mTitle->getDBkey(),
2975 'rev_page = page_id'
2976 ), __METHOD__, $this->getSelectOptions( array(
2977 'ORDER BY' => 'rev_timestamp DESC',
2983 wfProfileOut( __METHOD__ );
2987 $row = $db->fetchObject( $res );
2989 if ( $continue == 2 && $revLatest && $row->rev_id != $revLatest ) {
2990 $db = wfGetDB( DB_MASTER );
2995 } while ( $continue );
2997 $authors = array( $row->rev_user_text );
2999 foreach ( $res as $row ) {
3000 $authors[] = $row->rev_user_text;
3003 wfProfileOut( __METHOD__ );
3008 * Output deletion confirmation dialog
3009 * FIXME: Move to another file?
3010 * @param $reason String: prefilled reason
3012 public function confirmDelete( $reason ) {
3013 global $wgOut, $wgUser;
3015 wfDebug( "Article::confirmDelete\n" );
3017 $deleteBackLink = $wgUser->getSkin()->linkKnown( $this->mTitle );
3018 $wgOut->setSubtitle( wfMsgHtml( 'delete-backlink', $deleteBackLink ) );
3019 $wgOut->setRobotPolicy( 'noindex,nofollow' );
3020 $wgOut->addWikiMsg( 'confirmdeletetext' );
3022 wfRunHooks( 'ArticleConfirmDelete', array( $this, $wgOut, &$reason ) );
3024 if ( $wgUser->isAllowed( 'suppressrevision' ) ) {
3025 $suppress = "<tr id=\"wpDeleteSuppressRow\" name=\"wpDeleteSuppressRow\">
3027 <td class='mw-input'><strong>" .
3028 Xml::checkLabel( wfMsg( 'revdelete-suppress' ),
3029 'wpSuppress', 'wpSuppress', false, array( 'tabindex' => '4' ) ) .
3035 $checkWatch = $wgUser->getBoolOption( 'watchdeletion' ) || $this->mTitle->userIsWatching();
3037 $form = Xml::openElement( 'form', array( 'method' => 'post',
3038 'action' => $this->mTitle->getLocalURL( 'action=delete' ), 'id' => 'deleteconfirm' ) ) .
3039 Xml::openElement( 'fieldset', array( 'id' => 'mw-delete-table' ) ) .
3040 Xml::tags( 'legend', null, wfMsgExt( 'delete-legend', array( 'parsemag', 'escapenoentities' ) ) ) .
3041 Xml::openElement( 'table', array( 'id' => 'mw-deleteconfirm-table' ) ) .
3042 "<tr id=\"wpDeleteReasonListRow\">
3043 <td class='mw-label'>" .
3044 Xml::label( wfMsg( 'deletecomment' ), 'wpDeleteReasonList' ) .
3046 <td class='mw-input'>" .
3047 Xml::listDropDown( 'wpDeleteReasonList',
3048 wfMsgForContent( 'deletereason-dropdown' ),
3049 wfMsgForContent( 'deletereasonotherlist' ), '', 'wpReasonDropDown', 1 ) .
3052 <tr id=\"wpDeleteReasonRow\">
3053 <td class='mw-label'>" .
3054 Xml::label( wfMsg( 'deleteotherreason' ), 'wpReason' ) .
3056 <td class='mw-input'>" .
3057 Html::input( 'wpReason', $reason, 'text', array(
3059 'maxlength' => '255',
3067 # Disallow watching if user is not logged in
3068 if ( $wgUser->isLoggedIn() ) {
3072 <td class='mw-input'>" .
3073 Xml::checkLabel( wfMsg( 'watchthis' ),
3074 'wpWatch', 'wpWatch', $checkWatch, array( 'tabindex' => '3' ) ) .
3083 <td class='mw-submit'>" .
3084 Xml::submitButton( wfMsg( 'deletepage' ),
3085 array( 'name' => 'wpConfirmB', 'id' => 'wpConfirmB', 'tabindex' => '5' ) ) .
3088 Xml::closeElement( 'table' ) .
3089 Xml::closeElement( 'fieldset' ) .
3090 Html::hidden( 'wpEditToken', $wgUser->editToken() ) .
3091 Xml::closeElement( 'form' );
3093 if ( $wgUser->isAllowed( 'editinterface' ) ) {
3094 $skin = $wgUser->getSkin();
3095 $title = Title::makeTitle( NS_MEDIAWIKI, 'Deletereason-dropdown' );
3096 $link = $skin->link(
3098 wfMsgHtml( 'delete-edit-reasonlist' ),
3100 array( 'action' => 'edit' )
3102 $form .= '<p class="mw-delete-editreasons">' . $link . '</p>';
3105 $wgOut->addHTML( $form );
3106 $wgOut->addHTML( Xml::element( 'h2', null, LogPage::logName( 'delete' ) ) );
3107 LogEventsList::showLogExtract( $wgOut, 'delete',
3108 $this->mTitle->getPrefixedText()
3113 * Perform a deletion and output success or failure messages
3115 public function doDelete( $reason, $suppress = false ) {
3116 global $wgOut, $wgUser;
3118 $id = $this->mTitle->getArticleID( Title::GAID_FOR_UPDATE );
3121 if ( wfRunHooks( 'ArticleDelete', array( &$this, &$wgUser, &$reason, &$error ) ) ) {
3122 if ( $this->doDeleteArticle( $reason, $suppress, $id ) ) {
3123 $deleted = $this->mTitle->getPrefixedText();
3125 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
3126 $wgOut->setRobotPolicy( 'noindex,nofollow' );
3128 $loglink = '[[Special:Log/delete|' . wfMsgNoTrans( 'deletionlog' ) . ']]';
3130 $wgOut->addWikiMsg( 'deletedtext', $deleted, $loglink );
3131 $wgOut->returnToMain( false );
3132 wfRunHooks( 'ArticleDeleteComplete', array( &$this, &$wgUser, $reason, $id ) );
3135 if ( $error == '' ) {
3136 $wgOut->showFatalError(
3139 array( 'class' => 'error mw-error-cannotdelete' ),
3140 wfMsgExt( 'cannotdelete', array( 'parse' ), $this->mTitle->getPrefixedText() )
3144 $wgOut->addHTML( Xml::element( 'h2', null, LogPage::logName( 'delete' ) ) );
3146 LogEventsList::showLogExtract(
3149 $this->mTitle->getPrefixedText()
3152 $wgOut->showFatalError( $error );
3158 * Back-end article deletion
3159 * Deletes the article with database consistency, writes logs, purges caches
3161 * @param $reason string delete reason for deletion log
3162 * @param suppress bitfield
3163 * Revision::DELETED_TEXT
3164 * Revision::DELETED_COMMENT
3165 * Revision::DELETED_USER
3166 * Revision::DELETED_RESTRICTED
3167 * @param $id int article ID
3168 * @param $commit boolean defaults to true, triggers transaction end
3169 * @return boolean true if successful
3171 public function doDeleteArticle( $reason, $suppress = false, $id = 0, $commit = true ) {
3172 global $wgDeferredUpdateList, $wgUseTrackbacks;
3174 wfDebug( __METHOD__ . "\n" );
3176 $dbw = wfGetDB( DB_MASTER );
3177 $t = $this->mTitle->getDBkey();
3178 $id = $id ? $id : $this->mTitle->getArticleID( Title::GAID_FOR_UPDATE );
3180 if ( $t === '' || $id == 0 ) {
3184 $u = new SiteStatsUpdate( 0, 1, - (int)$this->isCountable( $this->getRawText() ), -1 );
3185 array_push( $wgDeferredUpdateList, $u );
3187 // Bitfields to further suppress the content
3190 // This should be 15...
3191 $bitfield |= Revision::DELETED_TEXT;
3192 $bitfield |= Revision::DELETED_COMMENT;
3193 $bitfield |= Revision::DELETED_USER;
3194 $bitfield |= Revision::DELETED_RESTRICTED;
3196 $bitfield = 'rev_deleted';
3200 // For now, shunt the revision data into the archive table.
3201 // Text is *not* removed from the text table; bulk storage
3202 // is left intact to avoid breaking block-compression or
3203 // immutable storage schemes.
3205 // For backwards compatibility, note that some older archive
3206 // table entries will have ar_text and ar_flags fields still.
3208 // In the future, we may keep revisions and mark them with
3209 // the rev_deleted field, which is reserved for this purpose.
3210 $dbw->insertSelect( 'archive', array( 'page', 'revision' ),
3212 'ar_namespace' => 'page_namespace',
3213 'ar_title' => 'page_title',
3214 'ar_comment' => 'rev_comment',
3215 'ar_user' => 'rev_user',
3216 'ar_user_text' => 'rev_user_text',
3217 'ar_timestamp' => 'rev_timestamp',
3218 'ar_minor_edit' => 'rev_minor_edit',
3219 'ar_rev_id' => 'rev_id',
3220 'ar_text_id' => 'rev_text_id',
3221 'ar_text' => '\'\'', // Be explicit to appease
3222 'ar_flags' => '\'\'', // MySQL's "strict mode"...
3223 'ar_len' => 'rev_len',
3224 'ar_page_id' => 'page_id',
3225 'ar_deleted' => $bitfield
3228 'page_id = rev_page'
3232 # Delete restrictions for it
3233 $dbw->delete( 'page_restrictions', array ( 'pr_page' => $id ), __METHOD__ );
3235 # Now that it's safely backed up, delete it
3236 $dbw->delete( 'page', array( 'page_id' => $id ), __METHOD__ );
3237 $ok = ( $dbw->affectedRows() > 0 ); // getArticleId() uses slave, could be laggy
3244 # Fix category table counts
3246 $res = $dbw->select( 'categorylinks', 'cl_to', array( 'cl_from' => $id ), __METHOD__ );
3248 foreach ( $res as $row ) {
3249 $cats [] = $row->cl_to;
3252 $this->updateCategoryCounts( array(), $cats );
3254 # If using cascading deletes, we can skip some explicit deletes
3255 if ( !$dbw->cascadingDeletes() ) {
3256 $dbw->delete( 'revision', array( 'rev_page' => $id ), __METHOD__ );
3258 if ( $wgUseTrackbacks )
3259 $dbw->delete( 'trackbacks', array( 'tb_page' => $id ), __METHOD__ );
3261 # Delete outgoing links
3262 $dbw->delete( 'pagelinks', array( 'pl_from' => $id ) );
3263 $dbw->delete( 'imagelinks', array( 'il_from' => $id ) );
3264 $dbw->delete( 'categorylinks', array( 'cl_from' => $id ) );
3265 $dbw->delete( 'templatelinks', array( 'tl_from' => $id ) );
3266 $dbw->delete( 'externallinks', array( 'el_from' => $id ) );
3267 $dbw->delete( 'langlinks', array( 'll_from' => $id ) );
3268 $dbw->delete( 'iwlinks', array( 'iwl_from' => $id ) );
3269 $dbw->delete( 'redirect', array( 'rd_from' => $id ) );
3272 # If using cleanup triggers, we can skip some manual deletes
3273 if ( !$dbw->cleanupTriggers() ) {
3274 # Clean up recentchanges entries...
3275 $dbw->delete( 'recentchanges',
3276 array( 'rc_type != ' . RC_LOG,
3277 'rc_namespace' => $this->mTitle->getNamespace(),
3278 'rc_title' => $this->mTitle->getDBkey() ),
3280 $dbw->delete( 'recentchanges',
3281 array( 'rc_type != ' . RC_LOG, 'rc_cur_id' => $id ),
3286 Article::onArticleDelete( $this->mTitle );
3288 # Clear the cached article id so the interface doesn't act like we exist
3289 $this->mTitle->resetArticleID( 0 );
3291 # Log the deletion, if the page was suppressed, log it at Oversight instead
3292 $logtype = $suppress ? 'suppress' : 'delete';
3293 $log = new LogPage( $logtype );
3295 # Make sure logging got through
3296 $log->addEntry( 'delete', $this->mTitle, $reason, array() );
3306 * Roll back the most recent consecutive set of edits to a page
3307 * from the same user; fails if there are no eligible edits to
3308 * roll back to, e.g. user is the sole contributor. This function
3309 * performs permissions checks on $wgUser, then calls commitRollback()
3310 * to do the dirty work
3312 * @param $fromP String: Name of the user whose edits to rollback.
3313 * @param $summary String: Custom summary. Set to default summary if empty.
3314 * @param $token String: Rollback token.
3315 * @param $bot Boolean: If true, mark all reverted edits as bot.
3317 * @param $resultDetails Array: contains result-specific array of additional values
3318 * 'alreadyrolled' : 'current' (rev)
3319 * success : 'summary' (str), 'current' (rev), 'target' (rev)
3321 * @return array of errors, each error formatted as
3322 * array(messagekey, param1, param2, ...).
3323 * On success, the array is empty. This array can also be passed to
3324 * OutputPage::showPermissionsErrorPage().
3326 public function doRollback( $fromP, $summary, $token, $bot, &$resultDetails ) {
3329 $resultDetails = null;
3332 $editErrors = $this->mTitle->getUserPermissionsErrors( 'edit', $wgUser );
3333 $rollbackErrors = $this->mTitle->getUserPermissionsErrors( 'rollback', $wgUser );
3334 $errors = array_merge( $editErrors, wfArrayDiff2( $rollbackErrors, $editErrors ) );
3336 if ( !$wgUser->matchEditToken( $token, array( $this->mTitle->getPrefixedText(), $fromP ) ) ) {
3337 $errors[] = array( 'sessionfailure' );
3340 if ( $wgUser->pingLimiter( 'rollback' ) || $wgUser->pingLimiter() ) {
3341 $errors[] = array( 'actionthrottledtext' );
3344 # If there were errors, bail out now
3345 if ( !empty( $errors ) ) {
3349 return $this->commitRollback( $fromP, $summary, $bot, $resultDetails );
3353 * Backend implementation of doRollback(), please refer there for parameter
3354 * and return value documentation
3356 * NOTE: This function does NOT check ANY permissions, it just commits the
3357 * rollback to the DB Therefore, you should only call this function direct-
3358 * ly if you want to use custom permissions checks. If you don't, use
3359 * doRollback() instead.
3361 public function commitRollback( $fromP, $summary, $bot, &$resultDetails ) {
3362 global $wgUseRCPatrol, $wgUser, $wgLang;
3364 $dbw = wfGetDB( DB_MASTER );
3366 if ( wfReadOnly() ) {
3367 return array( array( 'readonlytext' ) );
3370 # Get the last editor
3371 $current = Revision::newFromTitle( $this->mTitle );
3372 if ( is_null( $current ) ) {
3373 # Something wrong... no page?
3374 return array( array( 'notanarticle' ) );
3377 $from = str_replace( '_', ' ', $fromP );
3378 # User name given should match up with the top revision.
3379 # If the user was deleted then $from should be empty.
3380 if ( $from != $current->getUserText() ) {
3381 $resultDetails = array( 'current' => $current );
3382 return array( array( 'alreadyrolled',
3383 htmlspecialchars( $this->mTitle->getPrefixedText() ),
3384 htmlspecialchars( $fromP ),
3385 htmlspecialchars( $current->getUserText() )
3389 # Get the last edit not by this guy...
3390 # Note: these may not be public values
3391 $user = intval( $current->getRawUser() );
3392 $user_text = $dbw->addQuotes( $current->getRawUserText() );
3393 $s = $dbw->selectRow( 'revision',
3394 array( 'rev_id', 'rev_timestamp', 'rev_deleted' ),
3395 array( 'rev_page' => $current->getPage(),
3396 "rev_user != {$user} OR rev_user_text != {$user_text}"
3398 array( 'USE INDEX' => 'page_timestamp',
3399 'ORDER BY' => 'rev_timestamp DESC' )
3401 if ( $s === false ) {
3402 # No one else ever edited this page
3403 return array( array( 'cantrollback' ) );
3404 } else if ( $s->rev_deleted & Revision::DELETED_TEXT || $s->rev_deleted & Revision::DELETED_USER ) {
3405 # Only admins can see this text
3406 return array( array( 'notvisiblerev' ) );
3410 if ( $bot && $wgUser->isAllowed( 'markbotedits' ) ) {
3411 # Mark all reverted edits as bot
3415 if ( $wgUseRCPatrol ) {
3416 # Mark all reverted edits as patrolled
3417 $set['rc_patrolled'] = 1;
3420 if ( count( $set ) ) {
3421 $dbw->update( 'recentchanges', $set,
3423 'rc_cur_id' => $current->getPage(),
3424 'rc_user_text' => $current->getUserText(),
3425 "rc_timestamp > '{$s->rev_timestamp}'",
3430 # Generate the edit summary if necessary
3431 $target = Revision::newFromId( $s->rev_id );
3432 if ( empty( $summary ) ) {
3433 if ( $from == '' ) { // no public user name
3434 $summary = wfMsgForContent( 'revertpage-nouser' );
3436 $summary = wfMsgForContent( 'revertpage' );
3440 # Allow the custom summary to use the same args as the default message
3442 $target->getUserText(), $from, $s->rev_id,
3443 $wgLang->timeanddate( wfTimestamp( TS_MW, $s->rev_timestamp ), true ),
3444 $current->getId(), $wgLang->timeanddate( $current->getTimestamp() )
3446 $summary = wfMsgReplaceArgs( $summary, $args );
3449 $flags = EDIT_UPDATE;
3451 if ( $wgUser->isAllowed( 'minoredit' ) ) {
3452 $flags |= EDIT_MINOR;
3455 if ( $bot && ( $wgUser->isAllowed( 'markbotedits' ) || $wgUser->isAllowed( 'bot' ) ) ) {
3456 $flags |= EDIT_FORCE_BOT;
3459 # Actually store the edit
3460 $status = $this->doEdit( $target->getText(), $summary, $flags, $target->getId() );
3461 if ( !empty( $status->value['revision'] ) ) {
3462 $revId = $status->value['revision']->getId();
3467 wfRunHooks( 'ArticleRollbackComplete', array( $this, $wgUser, $target, $current ) );
3469 $resultDetails = array(
3470 'summary' => $summary,
3471 'current' => $current,
3472 'target' => $target,
3480 * User interface for rollback operations
3482 public function rollback() {
3483 global $wgUser, $wgOut, $wgRequest;
3487 $result = $this->doRollback(
3488 $wgRequest->getVal( 'from' ),
3489 $wgRequest->getText( 'summary' ),
3490 $wgRequest->getVal( 'token' ),
3491 $wgRequest->getBool( 'bot' ),
3495 if ( in_array( array( 'actionthrottledtext' ), $result ) ) {
3496 $wgOut->rateLimited();
3500 if ( isset( $result[0][0] ) && ( $result[0][0] == 'alreadyrolled' || $result[0][0] == 'cantrollback' ) ) {
3501 $wgOut->setPageTitle( wfMsg( 'rollbackfailed' ) );
3502 $errArray = $result[0];
3503 $errMsg = array_shift( $errArray );
3504 $wgOut->addWikiMsgArray( $errMsg, $errArray );
3506 if ( isset( $details['current'] ) ) {
3507 $current = $details['current'];
3509 if ( $current->getComment() != '' ) {
3510 $wgOut->addWikiMsgArray( 'editcomment', array(
3511 $wgUser->getSkin()->formatComment( $current->getComment() ) ), array( 'replaceafter' ) );
3518 # Display permissions errors before read-only message -- there's no
3519 # point in misleading the user into thinking the inability to rollback
3520 # is only temporary.
3521 if ( !empty( $result ) && $result !== array( array( 'readonlytext' ) ) ) {
3522 # array_diff is completely broken for arrays of arrays, sigh.
3523 # Remove any 'readonlytext' error manually.
3525 foreach ( $result as $error ) {
3526 if ( $error != array( 'readonlytext' ) ) {
3530 $wgOut->showPermissionsErrorPage( $out );
3535 if ( $result == array( array( 'readonlytext' ) ) ) {
3536 $wgOut->readOnlyPage();
3541 $current = $details['current'];
3542 $target = $details['target'];
3543 $newId = $details['newid'];
3544 $wgOut->setPageTitle( wfMsg( 'actioncomplete' ) );
3545 $wgOut->setRobotPolicy( 'noindex,nofollow' );
3547 if ( $current->getUserText() === '' ) {
3548 $old = wfMsg( 'rev-deleted-user' );
3550 $old = $wgUser->getSkin()->userLink( $current->getUser(), $current->getUserText() )
3551 . $wgUser->getSkin()->userToolLinks( $current->getUser(), $current->getUserText() );
3554 $new = $wgUser->getSkin()->userLink( $target->getUser(), $target->getUserText() )
3555 . $wgUser->getSkin()->userToolLinks( $target->getUser(), $target->getUserText() );
3556 $wgOut->addHTML( wfMsgExt( 'rollback-success', array( 'parse', 'replaceafter' ), $old, $new ) );
3557 $wgOut->returnToMain( false, $this->mTitle );
3559 if ( !$wgRequest->getBool( 'hidediff', false ) && !$wgUser->getBoolOption( 'norollbackdiff', false ) ) {
3560 $de = new DifferenceEngine( $this->mTitle, $current->getId(), $newId, false, true );
3561 $de->showDiff( '', '' );
3566 * Do standard deferred updates after page view
3568 public function viewUpdates() {
3569 global $wgDeferredUpdateList, $wgDisableCounters, $wgUser;
3570 if ( wfReadOnly() ) {
3574 # Don't update page view counters on views from bot users (bug 14044)
3575 if ( !$wgDisableCounters && !$wgUser->isAllowed( 'bot' ) && $this->getID() ) {
3576 Article::incViewCount( $this->getID() );
3577 $u = new SiteStatsUpdate( 1, 0, 0 );
3578 array_push( $wgDeferredUpdateList, $u );
3581 # Update newtalk / watchlist notification status
3582 $wgUser->clearNotification( $this->mTitle );
3586 * Prepare text which is about to be saved.
3587 * Returns a stdclass with source, pst and output members
3589 public function prepareTextForEdit( $text, $revid = null ) {
3590 if ( $this->mPreparedEdit && $this->mPreparedEdit->newText == $text && $this->mPreparedEdit->revid == $revid ) {
3592 return $this->mPreparedEdit;
3597 $edit = (object)array();
3598 $edit->revid = $revid;
3599 $edit->newText = $text;
3600 $edit->pst = $this->preSaveTransform( $text );
3601 $edit->popts = $this->getParserOptions();
3602 $edit->output = $wgParser->parse( $edit->pst, $this->mTitle, $edit->popts, true, true, $revid );
3603 $edit->oldText = $this->getContent();
3605 $this->mPreparedEdit = $edit;
3611 * Do standard deferred updates after page edit.
3612 * Update links tables, site stats, search index and message cache.
3613 * Purges pages that include this page if the text was changed here.
3614 * Every 100th edit, prune the recent changes table.
3617 * @param $text String: New text of the article
3618 * @param $summary String: Edit summary
3619 * @param $minoredit Boolean: Minor edit
3620 * @param $timestamp_of_pagechange Timestamp associated with the page change
3621 * @param $newid Integer: rev_id value of the new revision
3622 * @param $changed Boolean: Whether or not the content actually changed
3624 public function editUpdates( $text, $summary, $minoredit, $timestamp_of_pagechange, $newid, $changed = true ) {
3625 global $wgDeferredUpdateList, $wgMessageCache, $wgUser, $wgEnableParserCache;
3627 wfProfileIn( __METHOD__ );
3630 # Be careful not to double-PST: $text is usually already PST-ed once
3631 if ( !$this->mPreparedEdit || $this->mPreparedEdit->output->getFlag( 'vary-revision' ) ) {
3632 wfDebug( __METHOD__ . ": No prepared edit or vary-revision is set...\n" );
3633 $editInfo = $this->prepareTextForEdit( $text, $newid );
3635 wfDebug( __METHOD__ . ": No vary-revision, using prepared edit...\n" );
3636 $editInfo = $this->mPreparedEdit;
3639 # Save it to the parser cache
3640 if ( $wgEnableParserCache ) {
3641 $parserCache = ParserCache::singleton();
3642 $parserCache->save( $editInfo->output, $this, $editInfo->popts );
3645 # Update the links tables
3646 $u = new LinksUpdate( $this->mTitle, $editInfo->output );
3649 wfRunHooks( 'ArticleEditUpdates', array( &$this, &$editInfo, $changed ) );
3651 if ( wfRunHooks( 'ArticleEditUpdatesDeleteFromRecentchanges', array( &$this ) ) ) {
3652 if ( 0 == mt_rand( 0, 99 ) ) {
3653 // Flush old entries from the `recentchanges` table; we do this on
3654 // random requests so as to avoid an increase in writes for no good reason
3657 $dbw = wfGetDB( DB_MASTER );
3658 $cutoff = $dbw->timestamp( time() - $wgRCMaxAge );
3659 $recentchanges = $dbw->tableName( 'recentchanges' );
3660 $sql = "DELETE FROM $recentchanges WHERE rc_timestamp < '{$cutoff}'";
3662 $dbw->query( $sql );
3666 $id = $this->getID();
3667 $title = $this->mTitle->getPrefixedDBkey();
3668 $shortTitle = $this->mTitle->getDBkey();
3671 wfProfileOut( __METHOD__ );
3675 $u = new SiteStatsUpdate( 0, 1, $this->mGoodAdjustment, $this->mTotalAdjustment );
3676 array_push( $wgDeferredUpdateList, $u );
3677 $u = new SearchUpdate( $id, $title, $text );
3678 array_push( $wgDeferredUpdateList, $u );
3680 # If this is another user's talk page, update newtalk
3681 # Don't do this if $changed = false otherwise some idiot can null-edit a
3682 # load of user talk pages and piss people off, nor if it's a minor edit
3683 # by a properly-flagged bot.
3684 if ( $this->mTitle->getNamespace() == NS_USER_TALK && $shortTitle != $wgUser->getTitleKey() && $changed
3685 && !( $minoredit && $wgUser->isAllowed( 'nominornewtalk' ) )
3687 if ( wfRunHooks( 'ArticleEditUpdateNewTalk', array( &$this ) ) ) {
3688 $other = User::newFromName( $shortTitle, false );
3690 wfDebug( __METHOD__ . ": invalid username\n" );
3691 } elseif ( User::isIP( $shortTitle ) ) {
3692 // An anonymous user
3693 $other->setNewtalk( true );
3694 } elseif ( $other->isLoggedIn() ) {
3695 $other->setNewtalk( true );
3697 wfDebug( __METHOD__ . ": don't need to notify a nonexistent user\n" );
3702 if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
3703 $wgMessageCache->replace( $shortTitle, $text );
3706 wfProfileOut( __METHOD__ );
3710 * Perform article updates on a special page creation.
3712 * @param $rev Revision object
3714 * @todo This is a shitty interface function. Kill it and replace the
3715 * other shitty functions like editUpdates and such so it's not needed
3718 public function createUpdates( $rev ) {
3719 $this->mGoodAdjustment = $this->isCountable( $rev->getText() );
3720 $this->mTotalAdjustment = 1;
3721 $this->editUpdates( $rev->getText(), $rev->getComment(),
3722 $rev->isMinor(), wfTimestamp(), $rev->getId(), true );
3726 * Generate the navigation links when browsing through an article revisions
3727 * It shows the information as:
3728 * Revision as of \<date\>; view current revision
3729 * \<- Previous version | Next Version -\>
3731 * @param $oldid String: revision ID of this article revision
3733 public function setOldSubtitle( $oldid = 0 ) {
3734 global $wgLang, $wgOut, $wgUser, $wgRequest;
3736 if ( !wfRunHooks( 'DisplayOldSubtitle', array( &$this, &$oldid ) ) ) {
3740 $unhide = $wgRequest->getInt( 'unhide' ) == 1;
3742 # Cascade unhide param in links for easy deletion browsing
3743 $extraParams = array();
3744 if ( $wgRequest->getVal( 'unhide' ) ) {
3745 $extraParams['unhide'] = 1;
3748 $revision = Revision::newFromId( $oldid );
3750 $current = ( $oldid == $this->mLatest );
3751 $td = $wgLang->timeanddate( $this->mTimestamp, true );
3752 $tddate = $wgLang->date( $this->mTimestamp, true );
3753 $tdtime = $wgLang->time( $this->mTimestamp, true );
3754 $sk = $wgUser->getSkin();
3756 ? wfMsgHtml( 'currentrevisionlink' )
3759 wfMsgHtml( 'currentrevisionlink' ),
3762 array( 'known', 'noclasses' )
3765 ? wfMsgHtml( 'diff' )
3768 wfMsgHtml( 'diff' ),
3774 array( 'known', 'noclasses' )
3776 $prev = $this->mTitle->getPreviousRevisionID( $oldid ) ;
3780 wfMsgHtml( 'previousrevision' ),
3783 'direction' => 'prev',
3786 array( 'known', 'noclasses' )
3788 : wfMsgHtml( 'previousrevision' );
3792 wfMsgHtml( 'diff' ),
3798 array( 'known', 'noclasses' )
3800 : wfMsgHtml( 'diff' );
3801 $nextlink = $current
3802 ? wfMsgHtml( 'nextrevision' )
3805 wfMsgHtml( 'nextrevision' ),
3808 'direction' => 'next',
3811 array( 'known', 'noclasses' )
3813 $nextdiff = $current
3814 ? wfMsgHtml( 'diff' )
3817 wfMsgHtml( 'diff' ),
3823 array( 'known', 'noclasses' )
3828 // User can delete revisions or view deleted revisions...
3829 $canHide = $wgUser->isAllowed( 'deleterevision' );
3830 if ( $canHide || ( $revision->getVisibility() && $wgUser->isAllowed( 'deletedhistory' ) ) ) {
3831 if ( !$revision->userCan( Revision::DELETED_RESTRICTED ) ) {
3832 $cdel = $sk->revDeleteLinkDisabled( $canHide ); // rev was hidden from Sysops
3835 'type' => 'revision',
3836 'target' => $this->mTitle->getPrefixedDbkey(),
3839 $cdel = $sk->revDeleteLink( $query, $revision->isDeleted( File::DELETED_RESTRICTED ), $canHide );
3844 # Show user links if allowed to see them. If hidden, then show them only if requested...
3845 $userlinks = $sk->revUserTools( $revision, !$unhide );
3847 $m = wfMsg( 'revision-info-current' );
3848 $infomsg = $current && !wfEmptyMsg( 'revision-info-current', $m ) && $m != '-'
3849 ? 'revision-info-current'
3852 $r = "\n\t\t\t\t<div id=\"mw-{$infomsg}\">" .
3855 array( 'parseinline', 'replaceafter' ),
3861 $revision->getUser()
3864 "\n\t\t\t\t<div id=\"mw-revision-nav\">" . $cdel . wfMsgExt( 'revision-nav', array( 'escapenoentities', 'parsemag', 'replaceafter' ),
3865 $prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff ) . "</div>\n\t\t\t";
3867 $wgOut->setSubtitle( $r );
3871 * This function is called right before saving the wikitext,
3872 * so we can do things like signatures and links-in-context.
3874 * @param $text String article contents
3875 * @return string article contents with altered wikitext markup (signatures
3876 * converted, {{subst:}}, templates, etc.)
3878 public function preSaveTransform( $text ) {
3879 global $wgParser, $wgUser;
3881 return $wgParser->preSaveTransform( $text, $this->mTitle, $wgUser, ParserOptions::newFromUser( $wgUser ) );
3884 /* Caching functions */
3887 * checkLastModified returns true if it has taken care of all
3888 * output to the client that is necessary for this request.
3889 * (that is, it has sent a cached version of the page)
3891 * @return boolean true if cached version send, false otherwise
3893 protected function tryFileCache() {
3894 static $called = false;
3897 wfDebug( "Article::tryFileCache(): called twice!?\n" );
3902 if ( $this->isFileCacheable() ) {
3903 $cache = new HTMLFileCache( $this->mTitle );
3904 if ( $cache->isFileCacheGood( $this->mTouched ) ) {
3905 wfDebug( "Article::tryFileCache(): about to load file\n" );
3906 $cache->loadFromFileCache();
3909 wfDebug( "Article::tryFileCache(): starting buffer\n" );
3910 ob_start( array( &$cache, 'saveToFileCache' ) );
3913 wfDebug( "Article::tryFileCache(): not cacheable\n" );
3920 * Check if the page can be cached
3923 public function isFileCacheable() {
3926 if ( HTMLFileCache::useFileCache() ) {
3927 $cacheable = $this->getID() && !$this->mRedirectedFrom && !$this->mTitle->isRedirect();
3928 // Extension may have reason to disable file caching on some pages.
3930 $cacheable = wfRunHooks( 'IsFileCacheable', array( &$this ) );
3938 * Loads page_touched and returns a value indicating if it should be used
3939 * @return boolean true if not a redirect
3941 public function checkTouched() {
3942 if ( !$this->mDataLoaded ) {
3943 $this->loadPageData();
3946 return !$this->mIsRedirect;
3950 * Get the page_touched field
3951 * @return string containing GMT timestamp
3953 public function getTouched() {
3954 if ( !$this->mDataLoaded ) {
3955 $this->loadPageData();
3958 return $this->mTouched;
3962 * Get the page_latest field
3963 * @return integer rev_id of current revision
3965 public function getLatest() {
3966 if ( !$this->mDataLoaded ) {
3967 $this->loadPageData();
3970 return (int)$this->mLatest;
3974 * Edit an article without doing all that other stuff
3975 * The article must already exist; link tables etc
3976 * are not updated, caches are not flushed.
3978 * @param $text String: text submitted
3979 * @param $comment String: comment submitted
3980 * @param $minor Boolean: whereas it's a minor modification
3982 public function quickEdit( $text, $comment = '', $minor = 0 ) {
3983 wfProfileIn( __METHOD__ );
3985 $dbw = wfGetDB( DB_MASTER );
3986 $revision = new Revision( array(
3987 'page' => $this->getId(),
3989 'comment' => $comment,
3990 'minor_edit' => $minor ? 1 : 0,
3992 $revision->insertOn( $dbw );
3993 $this->updateRevisionOn( $dbw, $revision );
3996 wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $revision, false, $wgUser ) );
3998 wfProfileOut( __METHOD__ );
4002 * Used to increment the view counter
4004 * @param $id Integer: article id
4006 public static function incViewCount( $id ) {
4007 $id = intval( $id );
4009 global $wgHitcounterUpdateFreq;
4011 $dbw = wfGetDB( DB_MASTER );
4012 $pageTable = $dbw->tableName( 'page' );
4013 $hitcounterTable = $dbw->tableName( 'hitcounter' );
4014 $acchitsTable = $dbw->tableName( 'acchits' );
4015 $dbType = $dbw->getType();
4017 if ( $wgHitcounterUpdateFreq <= 1 || $dbType == 'sqlite' ) {
4018 $dbw->query( "UPDATE $pageTable SET page_counter = page_counter + 1 WHERE page_id = $id" );
4023 # Not important enough to warrant an error page in case of failure
4024 $oldignore = $dbw->ignoreErrors( true );
4026 $dbw->query( "INSERT INTO $hitcounterTable (hc_id) VALUES ({$id})" );
4028 $checkfreq = intval( $wgHitcounterUpdateFreq / 25 + 1 );
4029 if ( ( rand() % $checkfreq != 0 ) or ( $dbw->lastErrno() != 0 ) ) {
4030 # Most of the time (or on SQL errors), skip row count check
4031 $dbw->ignoreErrors( $oldignore );
4036 $res = $dbw->query( "SELECT COUNT(*) as n FROM $hitcounterTable" );
4037 $row = $dbw->fetchObject( $res );
4038 $rown = intval( $row->n );
4040 if ( $rown >= $wgHitcounterUpdateFreq ) {
4041 wfProfileIn( 'Article::incViewCount-collect' );
4042 $old_user_abort = ignore_user_abort( true );
4044 $dbw->lockTables( array(), array( 'hitcounter' ), __METHOD__, false );
4045 $tabletype = $dbType == 'mysql' ? "ENGINE=HEAP " : '';
4046 $dbw->query( "CREATE TEMPORARY TABLE $acchitsTable $tabletype AS " .
4047 "SELECT hc_id,COUNT(*) AS hc_n FROM $hitcounterTable " .
4048 'GROUP BY hc_id', __METHOD__ );
4049 $dbw->delete( 'hitcounter', '*', __METHOD__ );
4050 $dbw->unlockTables( __METHOD__ );
4052 if ( $dbType == 'mysql' ) {
4053 $dbw->query( "UPDATE $pageTable,$acchitsTable SET page_counter=page_counter + hc_n " .
4054 'WHERE page_id = hc_id', __METHOD__ );
4056 $dbw->query( "UPDATE $pageTable SET page_counter=page_counter + hc_n " .
4057 "FROM $acchitsTable WHERE page_id = hc_id", __METHOD__ );
4059 $dbw->query( "DROP TABLE $acchitsTable", __METHOD__ );
4061 ignore_user_abort( $old_user_abort );
4062 wfProfileOut( 'Article::incViewCount-collect' );
4065 $dbw->ignoreErrors( $oldignore );
4069 * The onArticle*() functions are supposed to be a kind of hooks
4070 * which should be called whenever any of the specified actions
4073 * This is a good place to put code to clear caches, for instance.
4075 * This is called on page move and undelete, as well as edit
4077 * @param $title a title object
4079 public static function onArticleCreate( $title ) {
4080 # Update existence markers on article/talk tabs...
4081 if ( $title->isTalkPage() ) {
4082 $other = $title->getSubjectPage();
4084 $other = $title->getTalkPage();
4087 $other->invalidateCache();
4088 $other->purgeSquid();
4090 $title->touchLinks();
4091 $title->purgeSquid();
4092 $title->deleteTitleProtection();
4096 * Clears caches when article is deleted
4098 public static function onArticleDelete( $title ) {
4099 global $wgMessageCache;
4101 # Update existence markers on article/talk tabs...
4102 if ( $title->isTalkPage() ) {
4103 $other = $title->getSubjectPage();
4105 $other = $title->getTalkPage();
4108 $other->invalidateCache();
4109 $other->purgeSquid();
4111 $title->touchLinks();
4112 $title->purgeSquid();
4115 HTMLFileCache::clearFileCache( $title );
4118 if ( $title->getNamespace() == NS_MEDIAWIKI ) {
4119 $wgMessageCache->replace( $title->getDBkey(), false );
4123 if ( $title->getNamespace() == NS_FILE ) {
4124 $update = new HTMLCacheUpdate( $title, 'imagelinks' );
4125 $update->doUpdate();
4129 if ( $title->getNamespace() == NS_USER_TALK ) {
4130 $user = User::newFromName( $title->getText(), false );
4131 $user->setNewtalk( false );
4135 RepoGroup::singleton()->getLocalRepo()->invalidateImageRedirect( $title );
4139 * Purge caches on page update etc
4141 * @param $title Title object
4142 * @todo: verify that $title is always a Title object (and never false or null), add Title hint to parameter $title
4144 public static function onArticleEdit( $title ) {
4145 global $wgDeferredUpdateList;
4147 // Invalidate caches of articles which include this page
4148 $wgDeferredUpdateList[] = new HTMLCacheUpdate( $title, 'templatelinks' );
4150 // Invalidate the caches of all pages which redirect here
4151 $wgDeferredUpdateList[] = new HTMLCacheUpdate( $title, 'redirect' );
4153 # Purge squid for this page only
4154 $title->purgeSquid();
4156 # Clear file cache for this page only
4157 HTMLFileCache::clearFileCache( $title );
4163 * Overriden by ImagePage class, only present here to avoid a fatal error
4164 * Called for ?action=revert
4166 public function revert() {
4168 $wgOut->showErrorPage( 'nosuchaction', 'nosuchactiontext' );
4172 * Info about this page
4173 * Called for ?action=info when $wgAllowPageInfo is on.
4175 public function info() {
4176 global $wgLang, $wgOut, $wgAllowPageInfo, $wgUser;
4178 if ( !$wgAllowPageInfo ) {
4179 $wgOut->showErrorPage( 'nosuchaction', 'nosuchactiontext' );
4183 $page = $this->mTitle->getSubjectPage();
4185 $wgOut->setPagetitle( $page->getPrefixedText() );
4186 $wgOut->setPageTitleActionText( wfMsg( 'info_short' ) );
4187 $wgOut->setSubtitle( wfMsgHtml( 'infosubtitle' ) );
4189 if ( !$this->mTitle->exists() ) {
4190 $wgOut->addHTML( '<div class="noarticletext">' );
4191 if ( $this->mTitle->getNamespace() == NS_MEDIAWIKI ) {
4192 // This doesn't quite make sense; the user is asking for
4193 // information about the _page_, not the message... -- RC
4194 $wgOut->addHTML( htmlspecialchars( wfMsgWeirdKey( $this->mTitle->getText() ) ) );
4196 $msg = $wgUser->isLoggedIn()
4198 : 'noarticletextanon';
4199 $wgOut->addHTML( wfMsgExt( $msg, 'parse' ) );
4202 $wgOut->addHTML( '</div>' );
4204 $dbr = wfGetDB( DB_SLAVE );
4206 'wl_title' => $page->getDBkey(),
4207 'wl_namespace' => $page->getNamespace() );
4208 $numwatchers = $dbr->selectField(
4213 $this->getSelectOptions() );
4215 $pageInfo = $this->pageCountInfo( $page );
4216 $talkInfo = $this->pageCountInfo( $page->getTalkPage() );
4219 //FIXME: unescaped messages
4220 $wgOut->addHTML( "<ul><li>" . wfMsg( "numwatchers", $wgLang->formatNum( $numwatchers ) ) . '</li>' );
4221 $wgOut->addHTML( "<li>" . wfMsg( 'numedits', $wgLang->formatNum( $pageInfo['edits'] ) ) . '</li>' );
4224 $wgOut->addHTML( '<li>' . wfMsg( "numtalkedits", $wgLang->formatNum( $talkInfo['edits'] ) ) . '</li>' );
4227 $wgOut->addHTML( '<li>' . wfMsg( "numauthors", $wgLang->formatNum( $pageInfo['authors'] ) ) . '</li>' );
4230 $wgOut->addHTML( '<li>' . wfMsg( 'numtalkauthors', $wgLang->formatNum( $talkInfo['authors'] ) ) . '</li>' );
4233 $wgOut->addHTML( '</ul>' );
4238 * Return the total number of edits and number of unique editors
4239 * on a given page. If page does not exist, returns false.
4241 * @param $title Title object
4242 * @return mixed array or boolean false
4244 public function pageCountInfo( $title ) {
4245 $id = $title->getArticleId();
4251 $dbr = wfGetDB( DB_SLAVE );
4252 $rev_clause = array( 'rev_page' => $id );
4253 $edits = $dbr->selectField(
4258 $this->getSelectOptions()
4260 $authors = $dbr->selectField(
4262 'COUNT(DISTINCT rev_user_text)',
4265 $this->getSelectOptions()
4268 return array( 'edits' => $edits, 'authors' => $authors );
4272 * Return a list of templates used by this article.
4273 * Uses the templatelinks table
4275 * @return Array of Title objects
4277 public function getUsedTemplates() {
4279 $id = $this->mTitle->getArticleID();
4285 $dbr = wfGetDB( DB_SLAVE );
4286 $res = $dbr->select( array( 'templatelinks' ),
4287 array( 'tl_namespace', 'tl_title' ),
4288 array( 'tl_from' => $id ),
4291 if ( $res !== false ) {
4292 foreach ( $res as $row ) {
4293 $result[] = Title::makeTitle( $row->tl_namespace, $row->tl_title );
4301 * Returns a list of hidden categories this page is a member of.
4302 * Uses the page_props and categorylinks tables.
4304 * @return Array of Title objects
4306 public function getHiddenCategories() {
4308 $id = $this->mTitle->getArticleID();
4314 $dbr = wfGetDB( DB_SLAVE );
4315 $res = $dbr->select( array( 'categorylinks', 'page_props', 'page' ),
4317 array( 'cl_from' => $id, 'pp_page=page_id', 'pp_propname' => 'hiddencat',
4318 'page_namespace' => NS_CATEGORY, 'page_title=cl_to' ),
4321 if ( $res !== false ) {
4322 foreach ( $res as $row ) {
4323 $result[] = Title::makeTitle( NS_CATEGORY, $row->cl_to );
4331 * Return an applicable autosummary if one exists for the given edit.
4332 * @param $oldtext String: the previous text of the page.
4333 * @param $newtext String: The submitted text of the page.
4334 * @param $flags Bitmask: a bitmask of flags submitted for the edit.
4335 * @return string An appropriate autosummary, or an empty string.
4337 public static function getAutosummary( $oldtext, $newtext, $flags ) {
4340 # Decide what kind of autosummary is needed.
4342 # Redirect autosummaries
4343 $ot = Title::newFromRedirect( $oldtext );
4344 $rt = Title::newFromRedirect( $newtext );
4346 if ( is_object( $rt ) && ( !is_object( $ot ) || !$rt->equals( $ot ) || $ot->getFragment() != $rt->getFragment() ) ) {
4347 return wfMsgForContent( 'autoredircomment', $rt->getFullText() );
4350 # New page autosummaries
4351 if ( $flags & EDIT_NEW && strlen( $newtext ) ) {
4352 # If they're making a new article, give its text, truncated, in the summary.
4354 $truncatedtext = $wgContLang->truncate(
4355 str_replace( "\n", ' ', $newtext ),
4356 max( 0, 200 - strlen( wfMsgForContent( 'autosumm-new' ) ) ) );
4358 return wfMsgForContent( 'autosumm-new', $truncatedtext );
4361 # Blanking autosummaries
4362 if ( $oldtext != '' && $newtext == '' ) {
4363 return wfMsgForContent( 'autosumm-blank' );
4364 } elseif ( strlen( $oldtext ) > 10 * strlen( $newtext ) && strlen( $newtext ) < 500 ) {
4365 # Removing more than 90% of the article
4367 $truncatedtext = $wgContLang->truncate(
4369 max( 0, 200 - strlen( wfMsgForContent( 'autosumm-replace' ) ) ) );
4371 return wfMsgForContent( 'autosumm-replace', $truncatedtext );
4374 # If we reach this point, there's no applicable autosummary for our case, so our
4375 # autosummary is empty.
4380 * Add the primary page-view wikitext to the output buffer
4381 * Saves the text into the parser cache if possible.
4382 * Updates templatelinks if it is out of date.
4384 * @param $text String
4385 * @param $cache Boolean
4386 * @param $parserOptions mixed ParserOptions object, or boolean false
4388 public function outputWikiText( $text, $cache = true, $parserOptions = false ) {
4391 $this->mParserOutput = $this->getOutputFromWikitext( $text, $cache, $parserOptions );
4392 $wgOut->addParserOutput( $this->mParserOutput );
4396 * This does all the heavy lifting for outputWikitext, except it returns the parser
4397 * output instead of sending it straight to $wgOut. Makes things nice and simple for,
4398 * say, embedding thread pages within a discussion system (LiquidThreads)
4400 * @param $text string
4401 * @param $cache boolean
4402 * @param $parserOptions parsing options, defaults to false
4403 * @return string containing parsed output
4405 public function getOutputFromWikitext( $text, $cache = true, $parserOptions = false ) {
4406 global $wgParser, $wgEnableParserCache, $wgUseFileCache;
4408 if ( !$parserOptions ) {
4409 $parserOptions = $this->getParserOptions();
4413 $this->mParserOutput = $wgParser->parse( $text, $this->mTitle,
4414 $parserOptions, true, true, $this->getRevIdFetched() );
4419 wfDebugLog( 'slow-parse', sprintf( "%-5.2f %s", $time,
4420 $this->mTitle->getPrefixedDBkey() ) );
4423 if ( $wgEnableParserCache && $cache && $this->mParserOutput->isCacheable() ) {
4424 $parserCache = ParserCache::singleton();
4425 $parserCache->save( $this->mParserOutput, $this, $parserOptions );
4428 // Make sure file cache is not used on uncacheable content.
4429 // Output that has magic words in it can still use the parser cache
4430 // (if enabled), though it will generally expire sooner.
4431 if ( !$this->mParserOutput->isCacheable() || $this->mParserOutput->containsOldMagic() ) {
4432 $wgUseFileCache = false;
4435 $this->doCascadeProtectionUpdates( $this->mParserOutput );
4437 return $this->mParserOutput;
4441 * Get parser options suitable for rendering the primary article wikitext
4442 * @return mixed ParserOptions object or boolean false
4444 public function getParserOptions() {
4447 if ( !$this->mParserOptions ) {
4448 $this->mParserOptions = new ParserOptions( $wgUser );
4449 $this->mParserOptions->setTidy( true );
4450 $this->mParserOptions->enableLimitReport();
4453 // Clone to allow modifications of the return value without affecting
4455 return clone $this->mParserOptions;
4459 * Updates cascading protections
4461 * @param $parserOutput mixed ParserOptions object, or boolean false
4463 protected function doCascadeProtectionUpdates( $parserOutput ) {
4464 if ( !$this->isCurrent() || wfReadOnly() || !$this->mTitle->areRestrictionsCascading() ) {
4468 // templatelinks table may have become out of sync,
4469 // especially if using variable-based transclusions.
4470 // For paranoia, check if things have changed and if
4471 // so apply updates to the database. This will ensure
4472 // that cascaded protections apply as soon as the changes
4475 # Get templates from templatelinks
4476 $id = $this->mTitle->getArticleID();
4478 $tlTemplates = array();
4480 $dbr = wfGetDB( DB_SLAVE );
4481 $res = $dbr->select( array( 'templatelinks' ),
4482 array( 'tl_namespace', 'tl_title' ),
4483 array( 'tl_from' => $id ),
4487 foreach ( $res as $row ) {
4488 $tlTemplates["{$row->tl_namespace}:{$row->tl_title}"] = true;
4491 # Get templates from parser output.
4492 $poTemplates = array();
4493 foreach ( $parserOutput->getTemplates() as $ns => $templates ) {
4494 foreach ( $templates as $dbk => $id ) {
4495 $poTemplates["$ns:$dbk"] = true;
4500 $templates_diff = array_diff_key( $poTemplates, $tlTemplates );
4502 if ( count( $templates_diff ) > 0 ) {
4503 # Whee, link updates time.
4504 $u = new LinksUpdate( $this->mTitle, $parserOutput, false );
4510 * Update all the appropriate counts in the category table, given that
4511 * we've added the categories $added and deleted the categories $deleted.
4513 * @param $added array The names of categories that were added
4514 * @param $deleted array The names of categories that were deleted
4516 public function updateCategoryCounts( $added, $deleted ) {
4517 $ns = $this->mTitle->getNamespace();
4518 $dbw = wfGetDB( DB_MASTER );
4520 # First make sure the rows exist. If one of the "deleted" ones didn't
4521 # exist, we might legitimately not create it, but it's simpler to just
4522 # create it and then give it a negative value, since the value is bogus
4525 # Sometimes I wish we had INSERT ... ON DUPLICATE KEY UPDATE.
4526 $insertCats = array_merge( $added, $deleted );
4527 if ( !$insertCats ) {
4528 # Okay, nothing to do
4532 $insertRows = array();
4534 foreach ( $insertCats as $cat ) {
4535 $insertRows[] = array(
4536 'cat_id' => $dbw->nextSequenceValue( 'category_cat_id_seq' ),
4540 $dbw->insert( 'category', $insertRows, __METHOD__, 'IGNORE' );
4542 $addFields = array( 'cat_pages = cat_pages + 1' );
4543 $removeFields = array( 'cat_pages = cat_pages - 1' );
4545 if ( $ns == NS_CATEGORY ) {
4546 $addFields[] = 'cat_subcats = cat_subcats + 1';
4547 $removeFields[] = 'cat_subcats = cat_subcats - 1';
4548 } elseif ( $ns == NS_FILE ) {
4549 $addFields[] = 'cat_files = cat_files + 1';
4550 $removeFields[] = 'cat_files = cat_files - 1';
4557 array( 'cat_title' => $added ),
4566 array( 'cat_title' => $deleted ),
4573 * Lightweight method to get the parser output for a page, checking the parser cache
4574 * and so on. Doesn't consider most of the stuff that Article::view is forced to
4575 * consider, so it's not appropriate to use there.
4577 * @since 1.16 (r52326) for LiquidThreads
4579 * @param $oldid mixed integer Revision ID or null
4581 public function getParserOutput( $oldid = null ) {
4582 global $wgEnableParserCache, $wgUser;
4584 // Should the parser cache be used?
4585 $useParserCache = $wgEnableParserCache &&
4586 $wgUser->getStubThreshold() == 0 &&
4590 wfDebug( __METHOD__ . ': using parser cache: ' . ( $useParserCache ? 'yes' : 'no' ) . "\n" );
4592 if ( $wgUser->getStubThreshold() ) {
4593 wfIncrStats( 'pcache_miss_stub' );
4596 $parserOutput = false;
4597 if ( $useParserCache ) {
4598 $parserOutput = ParserCache::singleton()->get( $this, $this->getParserOptions() );
4601 if ( $parserOutput === false ) {
4602 // Cache miss; parse and output it.
4603 $rev = Revision::newFromTitle( $this->getTitle(), $oldid );
4605 return $this->getOutputFromWikitext( $rev->getText(), $useParserCache );
4607 return $parserOutput;
4611 // Deprecated methods
4613 * Get the database which should be used for reads
4616 * @deprecated - just call wfGetDB( DB_MASTER ) instead
4619 wfDeprecated( __METHOD__ );
4620 return wfGetDB( DB_MASTER );
4625 class PoolWorkArticleView extends PoolCounterWork {
4628 function __construct( $article, $key, $useParserCache, $parserOptions ) {
4629 parent::__construct( 'ArticleView', $key );
4630 $this->mArticle = $article;
4631 $this->cacheable = $useParserCache;
4632 $this->parserOptions = $parserOptions;
4636 return $this->mArticle->doViewParse();
4639 function getCachedWork() {
4642 $parserCache = ParserCache::singleton();
4643 $this->mArticle->mParserOutput = $parserCache->get( $this->mArticle, $this->parserOptions );
4645 if ( $this->mArticle->mParserOutput !== false ) {
4646 wfDebug( __METHOD__ . ": showing contents parsed by someone else\n" );
4647 $wgOut->addParserOutput( $this->mArticle->mParserOutput );
4648 # Ensure that UI elements requiring revision ID have
4649 # the correct version information.
4650 $wgOut->setRevisionId( $this->mArticle->getLatest() );
4656 function fallback() {
4657 return $this->mArticle->tryDirtyCache();
4660 function error( $status ) {
4663 $wgOut->clearHTML(); // for release() errors
4664 $wgOut->enableClientCache( false );
4665 $wgOut->setRobotPolicy( 'noindex,nofollow' );
4667 $errortext = $status->getWikiText( false, 'view-pool-error' );
4668 $wgOut->addWikiText( '<div class="errorbox">' . $errortext . '</div>' );