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 $mDataLoaded = false; // !<
25 var $mForUpdate = false; // !<
26 var $mGoodAdjustment = 0; // !<
27 var $mIsRedirect = false; // !<
28 var $mLatest = false; // !<
29 var $mMinorEdit; // !<
31 var $mPreparedEdit = false; // !< Title object if set
32 var $mRedirectedFrom = null; // !< Title object if set
33 var $mRedirectTarget = null; // !< Title object if set
34 var $mRedirectUrl = false; // !<
35 var $mRevIdFetched = 0; // !<
36 var $mRevision = null; // !< Revision object if set
37 var $mTimestamp = ''; // !<
38 var $mTitle; // !< Title object
39 var $mTotalAdjustment = 0; // !<
40 var $mTouched = '19700101000000'; // !<
41 var $mUser = -1; // !< Not loaded
42 var $mUserText = ''; // !< username from Revision if set
43 var $mParserOptions; // !< ParserOptions object for $wgUser articles
44 var $mParserOutput; // !< ParserCache object if set
48 * Constructor and clear the article
49 * @param $title Reference to a Title object.
50 * @param $oldId Integer revision ID, null to fetch from request, zero for current
52 public function __construct( Title
$title, $oldId = null ) {
53 // FIXME: does the reference play any role here?
54 $this->mTitle
=& $title;
55 $this->mOldId
= $oldId;
59 * Constructor from an page id
60 * @param $id Int article ID to load
62 public static function newFromID( $id ) {
63 $t = Title
::newFromID( $id );
64 # FIXME: doesn't inherit right
65 return $t == null ?
null : new self( $t );
66 # return $t == null ? null : new static( $t ); // PHP 5.3
70 * Tell the page view functions that this view was redirected
71 * from another page on the wiki.
72 * @param $from Title object.
74 public function setRedirectedFrom( Title
$from ) {
75 $this->mRedirectedFrom
= $from;
79 * If this page is a redirect, get its target
81 * The target will be fetched from the redirect table if possible.
82 * If this page doesn't have an entry there, call insertRedirect()
83 * @return mixed Title object, or null if this page is not a redirect
85 public function getRedirectTarget() {
86 if ( !$this->mTitle
->isRedirect() ) {
90 if ( $this->mRedirectTarget
!== null ) {
91 return $this->mRedirectTarget
;
94 # Query the redirect table
95 $dbr = wfGetDB( DB_SLAVE
);
96 $row = $dbr->selectRow( 'redirect',
97 array( 'rd_namespace', 'rd_title', 'rd_fragment', 'rd_interwiki' ),
98 array( 'rd_from' => $this->getID() ),
102 // rd_fragment and rd_interwiki were added later, populate them if empty
103 if ( $row && !is_null( $row->rd_fragment
) && !is_null( $row->rd_interwiki
) ) {
104 return $this->mRedirectTarget
= Title
::makeTitle(
105 $row->rd_namespace
, $row->rd_title
,
106 $row->rd_fragment
, $row->rd_interwiki
);
109 # This page doesn't have an entry in the redirect table
110 return $this->mRedirectTarget
= $this->insertRedirect();
114 * Insert an entry for this page into the redirect table.
116 * Don't call this function directly unless you know what you're doing.
117 * @return Title object or null if not a redirect
119 public function insertRedirect() {
120 // recurse through to only get the final target
121 $retval = Title
::newFromRedirectRecurse( $this->getRawText() );
125 $this->insertRedirectEntry( $retval );
130 * Insert or update the redirect table entry for this page to indicate
131 * it redirects to $rt .
132 * @param $rt Title redirect target
134 public function insertRedirectEntry( $rt ) {
135 $dbw = wfGetDB( DB_MASTER
);
136 $dbw->replace( 'redirect', array( 'rd_from' ),
138 'rd_from' => $this->getID(),
139 'rd_namespace' => $rt->getNamespace(),
140 'rd_title' => $rt->getDBkey(),
141 'rd_fragment' => $rt->getFragment(),
142 'rd_interwiki' => $rt->getInterwiki(),
149 * Get the Title object or URL this page redirects to
151 * @return mixed false, Title of in-wiki target, or string with URL
153 public function followRedirect() {
154 return $this->getRedirectURL( $this->getRedirectTarget() );
158 * Get the Title object this text redirects to
160 * @param $text string article content containing redirect info
161 * @return mixed false, Title of in-wiki target, or string with URL
162 * @deprecated @since 1.17
164 public function followRedirectText( $text ) {
165 // recurse through to only get the final target
166 return $this->getRedirectURL( Title
::newFromRedirectRecurse( $text ) );
170 * Get the Title object or URL to use for a redirect. We use Title
171 * objects for same-wiki, non-special redirects and URLs for everything
173 * @param $rt Title Redirect target
174 * @return mixed false, Title object of local target, or string with URL
176 public function getRedirectURL( $rt ) {
178 if ( $rt->getInterwiki() != '' ) {
179 if ( $rt->isLocal() ) {
180 // Offsite wikis need an HTTP redirect.
182 // This can be hard to reverse and may produce loops,
183 // so they may be disabled in the site configuration.
184 $source = $this->mTitle
->getFullURL( 'redirect=no' );
185 return $rt->getFullURL( 'rdfrom=' . urlencode( $source ) );
188 if ( $rt->getNamespace() == NS_SPECIAL
) {
189 // Gotta handle redirects to special pages differently:
190 // Fill the HTTP response "Location" header and ignore
191 // the rest of the page we're on.
193 // This can be hard to reverse, so they may be disabled.
194 if ( $rt->isSpecial( 'Userlogout' ) ) {
197 return $rt->getFullURL();
205 // No or invalid redirect
210 * Get the title object of the article
211 * @return Title object of this page
213 public function getTitle() {
214 return $this->mTitle
;
219 * FIXME: shouldn't this be public?
222 public function clear() {
223 $this->mDataLoaded
= false;
224 $this->mContentLoaded
= false;
226 $this->mUser
= $this->mCounter
= -1; # Not loaded
227 $this->mRedirectedFrom
= null; # Title object if set
228 $this->mRedirectTarget
= null; # Title object if set
230 $this->mTimestamp
= $this->mComment
= '';
231 $this->mGoodAdjustment
= $this->mTotalAdjustment
= 0;
232 $this->mTouched
= '19700101000000';
233 $this->mForUpdate
= false;
234 $this->mIsRedirect
= false;
235 $this->mRevIdFetched
= 0;
236 $this->mRedirectUrl
= false;
237 $this->mLatest
= false;
238 $this->mPreparedEdit
= false;
242 * Note that getContent/loadContent do not follow redirects anymore.
243 * If you need to fetch redirectable content easily, try
244 * the shortcut in Article::followRedirect()
246 * This function has side effects! Do not use this function if you
247 * only want the real revision text if any.
249 * @return Return the text of this revision
251 public function getContent() {
254 wfProfileIn( __METHOD__
);
256 if ( $this->getID() === 0 ) {
257 # If this is a MediaWiki:x message, then load the messages
258 # and return the message value for x.
259 if ( $this->mTitle
->getNamespace() == NS_MEDIAWIKI
) {
260 $text = $this->mTitle
->getDefaultMessageText();
261 if ( $text === false ) {
265 $text = wfMsgExt( $wgUser->isLoggedIn() ?
'noarticletext' : 'noarticletextanon', 'parsemag' );
267 wfProfileOut( __METHOD__
);
271 $this->loadContent();
272 wfProfileOut( __METHOD__
);
274 return $this->mContent
;
279 * Get the text of the current revision. No side-effects...
281 * @return Return the text of the current revision
283 public function getRawText() {
284 // Check process cache for current revision
285 if ( $this->mContentLoaded
&& $this->mOldId
== 0 ) {
286 return $this->mContent
;
289 $rev = Revision
::newFromTitle( $this->mTitle
);
290 $text = $rev ?
$rev->getRawText() : false;
296 * This function returns the text of a section, specified by a number ($section).
297 * A section is text under a heading like == Heading == or \<h1\>Heading\</h1\>, or
298 * the first section before any such heading (section 0).
300 * If a section contains subsections, these are also returned.
302 * @param $text String: text to look in
303 * @param $section Integer: section number
304 * @return string text of the requested section
307 public function getSection( $text, $section ) {
309 return $wgParser->getSection( $text, $section );
313 * Get the text that needs to be saved in order to undo all revisions
314 * between $undo and $undoafter. Revisions must belong to the same page,
315 * must exist and must not be deleted
316 * @param $undo Revision
317 * @param $undoafter Revision Must be an earlier revision than $undo
318 * @return mixed string on success, false on failure
320 public function getUndoText( Revision
$undo, Revision
$undoafter = null ) {
321 $currentRev = Revision
::newFromTitle( $this->mTitle
);
322 if ( !$currentRev ) {
323 return false; // no page
325 $undo_text = $undo->getText();
326 $undoafter_text = $undoafter->getText();
327 $cur_text = $currentRev->getText();
329 if ( $cur_text == $undo_text ) {
330 # No use doing a merge if it's just a straight revert.
331 return $undoafter_text;
336 if ( !wfMerge( $undo_text, $undoafter_text, $cur_text, $undone_text ) ) {
344 * @return int The oldid of the article that is to be shown, 0 for the
347 public function getOldID() {
348 if ( is_null( $this->mOldId
) ) {
349 $this->mOldId
= $this->getOldIDFromRequest();
352 return $this->mOldId
;
356 * Sets $this->mRedirectUrl to a correct URL if the query parameters are incorrect
358 * @return int The old id for the request
360 public function getOldIDFromRequest() {
363 $this->mRedirectUrl
= false;
365 $oldid = $wgRequest->getVal( 'oldid' );
367 if ( isset( $oldid ) ) {
368 $oldid = intval( $oldid );
369 if ( $wgRequest->getVal( 'direction' ) == 'next' ) {
370 $nextid = $this->mTitle
->getNextRevisionID( $oldid );
374 $this->mRedirectUrl
= $this->mTitle
->getFullURL( 'redirect=no' );
376 } elseif ( $wgRequest->getVal( 'direction' ) == 'prev' ) {
377 $previd = $this->mTitle
->getPreviousRevisionID( $oldid );
392 * Load the revision (including text) into this object
394 function loadContent() {
395 if ( $this->mContentLoaded
) {
399 wfProfileIn( __METHOD__
);
401 $this->fetchContent( $this->getOldID() );
403 wfProfileOut( __METHOD__
);
407 * Fetch a page record with the given conditions
408 * @param $dbr Database object
409 * @param $conditions Array
410 * @return mixed Database result resource, or false on failure
412 protected function pageData( $dbr, $conditions ) {
427 wfRunHooks( 'ArticlePageDataBefore', array( &$this, &$fields ) );
429 $row = $dbr->selectRow( 'page', $fields, $conditions, __METHOD__
);
431 wfRunHooks( 'ArticlePageDataAfter', array( &$this, &$row ) );
437 * Fetch a page record matching the Title object's namespace and title
438 * using a sanitized title string
440 * @param $dbr Database object
441 * @param $title Title object
442 * @return mixed Database result resource, or false on failure
444 public function pageDataFromTitle( $dbr, $title ) {
445 return $this->pageData( $dbr, array(
446 'page_namespace' => $title->getNamespace(),
447 'page_title' => $title->getDBkey() ) );
451 * Fetch a page record matching the requested ID
453 * @param $dbr Database
456 protected function pageDataFromId( $dbr, $id ) {
457 return $this->pageData( $dbr, array( 'page_id' => $id ) );
461 * Set the general counter, title etc data loaded from
464 * @param $data Database row object or "fromdb"
466 public function loadPageData( $data = 'fromdb' ) {
467 if ( $data === 'fromdb' ) {
468 $dbr = wfGetDB( DB_SLAVE
);
469 $data = $this->pageDataFromTitle( $dbr, $this->mTitle
);
472 $lc = LinkCache
::singleton();
475 $lc->addGoodLinkObj( $data->page_id
, $this->mTitle
, $data->page_len
, $data->page_is_redirect
, $data->page_latest
);
477 $this->mTitle
->mArticleID
= intval( $data->page_id
);
479 # Old-fashioned restrictions
480 $this->mTitle
->loadRestrictions( $data->page_restrictions
);
482 $this->mCounter
= intval( $data->page_counter
);
483 $this->mTouched
= wfTimestamp( TS_MW
, $data->page_touched
);
484 $this->mIsRedirect
= intval( $data->page_is_redirect
);
485 $this->mLatest
= intval( $data->page_latest
);
487 $lc->addBadLinkObj( $this->mTitle
);
488 $this->mTitle
->mArticleID
= 0;
491 $this->mDataLoaded
= true;
495 * Get text of an article from database
496 * Does *NOT* follow redirects.
498 * @param $oldid Int: 0 for whatever the latest revision is
499 * @return mixed string containing article contents, or false if null
501 function fetchContent( $oldid = 0 ) {
502 if ( $this->mContentLoaded
) {
503 return $this->mContent
;
506 # Pre-fill content with error message so that if something
507 # fails we'll have something telling us what we intended.
508 $t = $this->mTitle
->getPrefixedText();
509 $d = $oldid ?
wfMsgExt( 'missingarticle-rev', array( 'escape' ), $oldid ) : '';
510 $this->mContent
= wfMsgNoTrans( 'missing-article', $t, $d ) ;
513 $revision = Revision
::newFromId( $oldid );
514 if ( $revision === null ) {
515 wfDebug( __METHOD__
. " failed to retrieve specified revision, id $oldid\n" );
519 if ( !$this->mDataLoaded ||
$this->getID() != $revision->getPage() ) {
520 $data = $this->pageDataFromId( wfGetDB( DB_SLAVE
), $revision->getPage() );
523 wfDebug( __METHOD__
. " failed to get page data linked to revision id $oldid\n" );
527 $this->mTitle
= Title
::makeTitle( $data->page_namespace
, $data->page_title
);
528 $this->loadPageData( $data );
531 if ( !$this->mDataLoaded
) {
532 $this->loadPageData();
535 if ( $this->mLatest
=== false ) {
536 wfDebug( __METHOD__
. " failed to find page data for title " . $this->mTitle
->getPrefixedText() . "\n" );
540 $revision = Revision
::newFromId( $this->mLatest
);
541 if ( $revision === null ) {
542 wfDebug( __METHOD__
. " failed to retrieve current page, rev_id {$this->mLatest}\n" );
547 // FIXME: Horrible, horrible! This content-loading interface just plain sucks.
548 // We should instead work with the Revision object when we need it...
549 $this->mContent
= $revision->getText( Revision
::FOR_THIS_USER
); // Loads if user is allowed
551 if ( $revision->getId() == $this->mLatest
) {
552 $this->setLastEdit( $revision );
555 $this->mRevIdFetched
= $revision->getId();
556 $this->mContentLoaded
= true;
557 $this->mRevision
=& $revision;
559 wfRunHooks( 'ArticleAfterFetchContent', array( &$this, &$this->mContent
) );
561 return $this->mContent
;
565 * Read/write accessor to select FOR UPDATE
567 * @param $x Mixed: FIXME
568 * @return mixed value of $x, or value stored in Article::mForUpdate
570 public function forUpdate( $x = null ) {
571 return wfSetVar( $this->mForUpdate
, $x );
575 * Get options for all SELECT statements
577 * @param $options Array: an optional options array which'll be appended to
579 * @return Array: options
581 protected function getSelectOptions( $options = '' ) {
582 if ( $this->mForUpdate
) {
583 if ( is_array( $options ) ) {
584 $options[] = 'FOR UPDATE';
586 $options = 'FOR UPDATE';
594 * @return int Page ID
596 public function getID() {
597 return $this->mTitle
->getArticleID();
601 * @return bool Whether or not the page exists in the database
603 public function exists() {
604 return $this->getId() > 0;
608 * Check if this page is something we're going to be showing
609 * some sort of sensible content for. If we return false, page
610 * views (plain action=view) will return an HTTP 404 response,
611 * so spiders and robots can know they're following a bad link.
615 public function hasViewableContent() {
616 return $this->exists() ||
$this->mTitle
->isAlwaysKnown();
620 * @return int The view count for the page
622 public function getCount() {
623 if ( -1 == $this->mCounter
) {
624 $id = $this->getID();
629 $dbr = wfGetDB( DB_SLAVE
);
630 $this->mCounter
= $dbr->selectField( 'page',
632 array( 'page_id' => $id ),
634 $this->getSelectOptions()
639 return $this->mCounter
;
643 * Determine whether a page would be suitable for being counted as an
644 * article in the site_stats table based on the title & its content
646 * @param $text String: text to analyze
649 public function isCountable( $text ) {
650 global $wgUseCommaCount;
652 $token = $wgUseCommaCount ?
',' : '[[';
654 return $this->mTitle
->isContentPage() && !$this->isRedirect( $text ) && in_string( $token, $text );
658 * Tests if the article text represents a redirect
660 * @param $text mixed string containing article contents, or boolean
663 public function isRedirect( $text = false ) {
664 if ( $text === false ) {
665 if ( !$this->mDataLoaded
) {
666 $this->loadPageData();
669 return (bool)$this->mIsRedirect
;
671 return Title
::newFromRedirect( $text ) !== null;
676 * Returns true if the currently-referenced revision is the current edit
677 * to this page (and it exists).
680 public function isCurrent() {
681 # If no oldid, this is the current version.
682 if ( $this->getOldID() == 0 ) {
686 return $this->exists() && $this->mRevision
&& $this->mRevision
->isCurrent();
690 * Loads everything except the text
691 * This isn't necessary for all uses, so it's only done if needed.
693 protected function loadLastEdit() {
694 if ( -1 != $this->mUser
) {
698 # New or non-existent articles have no user information
699 $id = $this->getID();
704 $revision = Revision
::loadFromPageId( wfGetDB( DB_MASTER
), $id );
705 if ( !is_null( $revision ) ) {
706 $this->setLastEdit( $revision );
711 * Set the latest revision
713 protected function setLastEdit( Revision
$revision ) {
714 $this->mLastRevision
= $revision;
715 $this->mUser
= $revision->getUser();
716 $this->mUserText
= $revision->getUserText();
717 $this->mTimestamp
= $revision->getTimestamp();
718 $this->mComment
= $revision->getComment();
719 $this->mMinorEdit
= $revision->isMinor();
723 * @return string GMT timestamp of last article revision
725 public function getTimestamp() {
726 // Check if the field has been filled by ParserCache::get()
727 if ( !$this->mTimestamp
) {
728 $this->loadLastEdit();
731 return wfTimestamp( TS_MW
, $this->mTimestamp
);
735 * @return int user ID for the user that made the last article revision
737 public function getUser() {
738 $this->loadLastEdit();
743 * @return string username of the user that made the last article revision
745 public function getUserText() {
746 $this->loadLastEdit();
747 return $this->mUserText
;
751 * @return string Comment stored for the last article revision
753 public function getComment() {
754 $this->loadLastEdit();
755 return $this->mComment
;
759 * Returns true if last revision was marked as "minor edit"
761 * @return boolean Minor edit indicator for the last article revision.
763 public function getMinorEdit() {
764 $this->loadLastEdit();
765 return $this->mMinorEdit
;
769 * Use this to fetch the rev ID used on page views
771 * @return int revision ID of last article revision
773 public function getRevIdFetched() {
774 if ( $this->mRevIdFetched
) {
775 return $this->mRevIdFetched
;
777 return $this->getLatest();
782 * FIXME: this does what?
783 * @param $limit Integer: default 0.
784 * @param $offset Integer: default 0.
785 * @return UserArrayFromResult object with User objects of article contributors for requested range
787 public function getContributors( $limit = 0, $offset = 0 ) {
788 # FIXME: this is expensive; cache this info somewhere.
790 $dbr = wfGetDB( DB_SLAVE
);
791 $revTable = $dbr->tableName( 'revision' );
792 $userTable = $dbr->tableName( 'user' );
794 $pageId = $this->getId();
796 $user = $this->getUser();
799 $excludeCond = "AND rev_user != $user";
801 $userText = $dbr->addQuotes( $this->getUserText() );
802 $excludeCond = "AND rev_user_text != $userText";
805 $deletedBit = $dbr->bitAnd( 'rev_deleted', Revision
::DELETED_USER
); // username hidden?
807 $sql = "SELECT {$userTable}.*, rev_user_text as user_name, MAX(rev_timestamp) as timestamp
808 FROM $revTable LEFT JOIN $userTable ON rev_user = user_id
809 WHERE rev_page = $pageId
812 GROUP BY rev_user, rev_user_text
813 ORDER BY timestamp DESC";
816 $sql = $dbr->limitResult( $sql, $limit, $offset );
819 $sql .= ' ' . $this->getSelectOptions();
820 $res = $dbr->query( $sql, __METHOD__
);
822 return new UserArrayFromResult( $res );
826 * This is the default action of the index.php entry point: just view the
827 * page of the given title.
829 public function view() {
830 global $wgUser, $wgOut, $wgRequest, $wgParser;
831 global $wgUseFileCache, $wgUseETag;
833 wfProfileIn( __METHOD__
);
835 # Get variables from query string
836 $oldid = $this->getOldID();
837 $parserCache = ParserCache
::singleton();
839 $parserOptions = $this->getParserOptions();
840 # Render printable version, use printable version cache
841 if ( $wgOut->isPrintable() ) {
842 $parserOptions->setIsPrintable( true );
843 $parserOptions->setEditSection( false );
844 } else if ( $wgUseETag && !$this->mTitle
->quickUserCan( 'edit' ) ) {
845 $parserOptions->setEditSection( false );
848 # Try client and file cache
849 if ( $oldid === 0 && $this->checkTouched() ) {
851 $wgOut->setETag( $parserCache->getETag( $this, $parserOptions ) );
854 # Is it client cached?
855 if ( $wgOut->checkLastModified( $this->getTouched() ) ) {
856 wfDebug( __METHOD__
. ": done 304\n" );
857 wfProfileOut( __METHOD__
);
861 } else if ( $wgUseFileCache && $this->tryFileCache() ) {
862 wfDebug( __METHOD__
. ": done file cache\n" );
863 # tell wgOut that output is taken care of
865 $this->viewUpdates();
866 wfProfileOut( __METHOD__
);
872 # getOldID may want us to redirect somewhere else
873 if ( $this->mRedirectUrl
) {
874 $wgOut->redirect( $this->mRedirectUrl
);
875 wfDebug( __METHOD__
. ": redirecting due to oldid\n" );
876 wfProfileOut( __METHOD__
);
881 $wgOut->setArticleFlag( true );
882 # Set page title (may be overridden by DISPLAYTITLE)
883 $wgOut->setPageTitle( $this->mTitle
->getPrefixedText() );
885 # If we got diff in the query, we want to see a diff page instead of the article.
886 if ( $wgRequest->getCheck( 'diff' ) ) {
887 wfDebug( __METHOD__
. ": showing diff page\n" );
888 $this->showDiffPage();
889 wfProfileOut( __METHOD__
);
894 # Allow frames by default
895 $wgOut->allowClickjacking();
897 if ( !$wgUseETag && !$this->mTitle
->quickUserCan( 'edit' ) ) {
898 $parserOptions->setEditSection( false );
901 # Should the parser cache be used?
902 $useParserCache = $this->useParserCache( $oldid );
903 wfDebug( 'Article::view using parser cache: ' . ( $useParserCache ?
'yes' : 'no' ) . "\n" );
904 if ( $wgUser->getStubThreshold() ) {
905 wfIncrStats( 'pcache_miss_stub' );
908 $wasRedirected = $this->showRedirectedFromHeader();
909 $this->showNamespaceHeader();
911 # Iterate through the possible ways of constructing the output text.
912 # Keep going until $outputDone is set, or we run out of things to do.
915 $this->mParserOutput
= false;
917 while ( !$outputDone && ++
$pass ) {
920 wfRunHooks( 'ArticleViewHeader', array( &$this, &$outputDone, &$useParserCache ) );
923 # Try the parser cache
924 if ( $useParserCache ) {
925 $this->mParserOutput
= $parserCache->get( $this, $parserOptions );
927 if ( $this->mParserOutput
!== false ) {
928 wfDebug( __METHOD__
. ": showing parser cache contents\n" );
929 $wgOut->addParserOutput( $this->mParserOutput
);
930 # Ensure that UI elements requiring revision ID have
931 # the correct version information.
932 $wgOut->setRevisionId( $this->mLatest
);
938 $text = $this->getContent();
939 if ( $text === false ||
$this->getID() == 0 ) {
940 wfDebug( __METHOD__
. ": showing missing article\n" );
941 $this->showMissingArticle();
942 wfProfileOut( __METHOD__
);
946 # Another whitelist check in case oldid is altering the title
947 if ( !$this->mTitle
->userCanRead() ) {
948 wfDebug( __METHOD__
. ": denied on secondary read check\n" );
949 $wgOut->loginToUse();
952 wfProfileOut( __METHOD__
);
956 # Are we looking at an old revision
957 if ( $oldid && !is_null( $this->mRevision
) ) {
958 $this->setOldSubtitle( $oldid );
960 if ( !$this->showDeletedRevisionHeader() ) {
961 wfDebug( __METHOD__
. ": cannot view deleted revision\n" );
962 wfProfileOut( __METHOD__
);
966 # If this "old" version is the current, then try the parser cache...
967 if ( $oldid === $this->getLatest() && $this->useParserCache( false ) ) {
968 $this->mParserOutput
= $parserCache->get( $this, $parserOptions );
969 if ( $this->mParserOutput
) {
970 wfDebug( __METHOD__
. ": showing parser cache for current rev permalink\n" );
971 $wgOut->addParserOutput( $this->mParserOutput
);
972 $wgOut->setRevisionId( $this->mLatest
);
979 # Ensure that UI elements requiring revision ID have
980 # the correct version information.
981 $wgOut->setRevisionId( $this->getRevIdFetched() );
983 # Pages containing custom CSS or JavaScript get special treatment
984 if ( $this->mTitle
->isCssOrJsPage() ||
$this->mTitle
->isCssJsSubpage() ) {
985 wfDebug( __METHOD__
. ": showing CSS/JS source\n" );
986 $this->showCssOrJsPage();
989 $rt = Title
::newFromRedirectArray( $text );
991 wfDebug( __METHOD__
. ": showing redirect=no page\n" );
992 # Viewing a redirect page (e.g. with parameter redirect=no)
993 # Don't append the subtitle if this was an old revision
994 $wgOut->addHTML( $this->viewRedirect( $rt, !$wasRedirected && $this->isCurrent() ) );
995 # Parse just to get categories, displaytitle, etc.
996 $this->mParserOutput
= $wgParser->parse( $text, $this->mTitle
, $parserOptions );
997 $wgOut->addParserOutputNoText( $this->mParserOutput
);
1003 # Run the parse, protected by a pool counter
1004 wfDebug( __METHOD__
. ": doing uncached parse\n" );
1006 $key = $parserCache->getKey( $this, $parserOptions );
1007 $poolArticleView = new PoolWorkArticleView( $this, $key, $useParserCache, $parserOptions );
1009 if ( !$poolArticleView->execute() ) {
1010 # Connection or timeout error
1011 wfProfileOut( __METHOD__
);
1017 # Should be unreachable, but just in case...
1023 # Adjust the title if it was set by displaytitle, -{T|}- or language conversion
1024 if ( $this->mParserOutput
) {
1025 $titleText = $this->mParserOutput
->getTitleText();
1027 if ( strval( $titleText ) !== '' ) {
1028 $wgOut->setPageTitle( $titleText );
1032 # For the main page, overwrite the <title> element with the con-
1033 # tents of 'pagetitle-view-mainpage' instead of the default (if
1034 # that's not empty).
1035 # This message always exists because it is in the i18n files
1036 if ( $this->mTitle
->equals( Title
::newMainPage() )
1037 && ( $m = wfMsgForContent( 'pagetitle-view-mainpage' ) ) !== '' )
1039 $wgOut->setHTMLTitle( $m );
1042 # Now that we've filled $this->mParserOutput, we know whether
1043 # there are any __NOINDEX__ tags on the page
1044 $policy = $this->getRobotPolicy( 'view' );
1045 $wgOut->setIndexPolicy( $policy['index'] );
1046 $wgOut->setFollowPolicy( $policy['follow'] );
1048 $this->showViewFooter();
1049 $this->viewUpdates();
1050 wfProfileOut( __METHOD__
);
1054 * Show a diff page according to current request variables. For use within
1055 * Article::view() only, other callers should use the DifferenceEngine class.
1057 public function showDiffPage() {
1058 global $wgRequest, $wgUser;
1060 $diff = $wgRequest->getVal( 'diff' );
1061 $rcid = $wgRequest->getVal( 'rcid' );
1062 $diffOnly = $wgRequest->getBool( 'diffonly', $wgUser->getOption( 'diffonly' ) );
1063 $purge = $wgRequest->getVal( 'action' ) == 'purge';
1064 $unhide = $wgRequest->getInt( 'unhide' ) == 1;
1065 $oldid = $this->getOldID();
1067 $de = new DifferenceEngine( $this->mTitle
, $oldid, $diff, $rcid, $purge, $unhide );
1068 // DifferenceEngine directly fetched the revision:
1069 $this->mRevIdFetched
= $de->mNewid
;
1070 $de->showDiffPage( $diffOnly );
1072 // Needed to get the page's current revision
1073 $this->loadPageData();
1074 if ( $diff == 0 ||
$diff == $this->mLatest
) {
1075 # Run view updates for current revision only
1076 $this->viewUpdates();
1081 * Show a page view for a page formatted as CSS or JavaScript. To be called by
1082 * Article::view() only.
1084 * This is hooked by SyntaxHighlight_GeSHi to do syntax highlighting of these
1087 protected function showCssOrJsPage() {
1090 $wgOut->wrapWikiMsg( "<div id='mw-clearyourcache'>\n$1\n</div>", 'clearyourcache' );
1092 // Give hooks a chance to customise the output
1093 if ( wfRunHooks( 'ShowRawCssJs', array( $this->mContent
, $this->mTitle
, $wgOut ) ) ) {
1094 // Wrap the whole lot in a <pre> and don't parse
1096 preg_match( '!\.(css|js)$!u', $this->mTitle
->getText(), $m );
1097 $wgOut->addHTML( "<pre class=\"mw-code mw-{$m[1]}\" dir=\"ltr\">\n" );
1098 $wgOut->addHTML( htmlspecialchars( $this->mContent
) );
1099 $wgOut->addHTML( "\n</pre>\n" );
1104 * Get the robot policy to be used for the current view
1105 * @param $action String the action= GET parameter
1106 * @return Array the policy that should be set
1107 * TODO: actions other than 'view'
1109 public function getRobotPolicy( $action ) {
1110 global $wgOut, $wgArticleRobotPolicies, $wgNamespaceRobotPolicies;
1111 global $wgDefaultRobotPolicy, $wgRequest;
1113 $ns = $this->mTitle
->getNamespace();
1115 if ( $ns == NS_USER ||
$ns == NS_USER_TALK
) {
1116 # Don't index user and user talk pages for blocked users (bug 11443)
1117 if ( !$this->mTitle
->isSubpage() ) {
1118 $block = new Block();
1119 if ( $block->load( $this->mTitle
->getText() ) ) {
1121 'index' => 'noindex',
1122 'follow' => 'nofollow'
1128 if ( $this->getID() === 0 ||
$this->getOldID() ) {
1129 # Non-articles (special pages etc), and old revisions
1131 'index' => 'noindex',
1132 'follow' => 'nofollow'
1134 } elseif ( $wgOut->isPrintable() ) {
1135 # Discourage indexing of printable versions, but encourage following
1137 'index' => 'noindex',
1138 'follow' => 'follow'
1140 } elseif ( $wgRequest->getInt( 'curid' ) ) {
1141 # For ?curid=x urls, disallow indexing
1143 'index' => 'noindex',
1144 'follow' => 'follow'
1148 # Otherwise, construct the policy based on the various config variables.
1149 $policy = self
::formatRobotPolicy( $wgDefaultRobotPolicy );
1151 if ( isset( $wgNamespaceRobotPolicies[$ns] ) ) {
1152 # Honour customised robot policies for this namespace
1153 $policy = array_merge(
1155 self
::formatRobotPolicy( $wgNamespaceRobotPolicies[$ns] )
1158 if ( $this->mTitle
->canUseNoindex() && is_object( $this->mParserOutput
) && $this->mParserOutput
->getIndexPolicy() ) {
1159 # __INDEX__ and __NOINDEX__ magic words, if allowed. Incorporates
1160 # a final sanity check that we have really got the parser output.
1161 $policy = array_merge(
1163 array( 'index' => $this->mParserOutput
->getIndexPolicy() )
1167 if ( isset( $wgArticleRobotPolicies[$this->mTitle
->getPrefixedText()] ) ) {
1168 # (bug 14900) site config can override user-defined __INDEX__ or __NOINDEX__
1169 $policy = array_merge(
1171 self
::formatRobotPolicy( $wgArticleRobotPolicies[$this->mTitle
->getPrefixedText()] )
1179 * Converts a String robot policy into an associative array, to allow
1180 * merging of several policies using array_merge().
1181 * @param $policy Mixed, returns empty array on null/false/'', transparent
1182 * to already-converted arrays, converts String.
1183 * @return Array: 'index' => <indexpolicy>, 'follow' => <followpolicy>
1185 public static function formatRobotPolicy( $policy ) {
1186 if ( is_array( $policy ) ) {
1188 } elseif ( !$policy ) {
1192 $policy = explode( ',', $policy );
1193 $policy = array_map( 'trim', $policy );
1196 foreach ( $policy as $var ) {
1197 if ( in_array( $var, array( 'index', 'noindex' ) ) ) {
1198 $arr['index'] = $var;
1199 } elseif ( in_array( $var, array( 'follow', 'nofollow' ) ) ) {
1200 $arr['follow'] = $var;
1208 * If this request is a redirect view, send "redirected from" subtitle to
1209 * $wgOut. Returns true if the header was needed, false if this is not a
1210 * redirect view. Handles both local and remote redirects.
1214 public function showRedirectedFromHeader() {
1215 global $wgOut, $wgUser, $wgRequest, $wgRedirectSources;
1217 $rdfrom = $wgRequest->getVal( 'rdfrom' );
1218 $sk = $wgUser->getSkin();
1220 if ( isset( $this->mRedirectedFrom
) ) {
1221 // This is an internally redirected page view.
1222 // We'll need a backlink to the source page for navigation.
1223 if ( wfRunHooks( 'ArticleViewRedirect', array( &$this ) ) ) {
1225 $this->mRedirectedFrom
,
1228 array( 'redirect' => 'no' ),
1229 array( 'known', 'noclasses' )
1232 $s = wfMsgExt( 'redirectedfrom', array( 'parseinline', 'replaceafter' ), $redir );
1233 $wgOut->setSubtitle( $s );
1235 // Set the fragment if one was specified in the redirect
1236 if ( strval( $this->mTitle
->getFragment() ) != '' ) {
1237 $fragment = Xml
::escapeJsString( $this->mTitle
->getFragmentForURL() );
1238 $wgOut->addInlineScript( "redirectToFragment(\"$fragment\");" );
1241 // Add a <link rel="canonical"> tag
1242 $wgOut->addLink( array( 'rel' => 'canonical',
1243 'href' => $this->mTitle
->getLocalURL() )
1248 } elseif ( $rdfrom ) {
1249 // This is an externally redirected view, from some other wiki.
1250 // If it was reported from a trusted site, supply a backlink.
1251 if ( $wgRedirectSources && preg_match( $wgRedirectSources, $rdfrom ) ) {
1252 $redir = $sk->makeExternalLink( $rdfrom, $rdfrom );
1253 $s = wfMsgExt( 'redirectedfrom', array( 'parseinline', 'replaceafter' ), $redir );
1254 $wgOut->setSubtitle( $s );
1264 * Show a header specific to the namespace currently being viewed, like
1265 * [[MediaWiki:Talkpagetext]]. For Article::view().
1267 public function showNamespaceHeader() {
1270 if ( $this->mTitle
->isTalkPage() ) {
1271 if ( !wfMessage( 'talkpageheader' )->isDisabled() ) {
1272 $wgOut->wrapWikiMsg( "<div class=\"mw-talkpageheader\">\n$1\n</div>", array( 'talkpageheader' ) );
1278 * Show the footer section of an ordinary page view
1280 public function showViewFooter() {
1281 global $wgOut, $wgUseTrackbacks;
1283 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
1284 if ( $this->mTitle
->getNamespace() == NS_USER_TALK
&& IP
::isValid( $this->mTitle
->getText() ) ) {
1285 $wgOut->addWikiMsg( 'anontalkpagetext' );
1288 # If we have been passed an &rcid= parameter, we want to give the user a
1289 # chance to mark this new article as patrolled.
1290 $this->showPatrolFooter();
1293 if ( $wgUseTrackbacks ) {
1294 $this->addTrackbacks();
1297 wfRunHooks( 'ArticleViewFooter', array( $this ) );
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->mTitle
->getDefaultMessageText();
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.x 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|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();
1702 if ( $wgUseSquid ) {
1703 // Commit the transaction before the purge is sent
1704 $dbw = wfGetDB( DB_MASTER
);
1708 $update = SquidUpdate
::newSimplePurge( $this->mTitle
);
1709 $update->doUpdate();
1712 if ( $this->mTitle
->getNamespace() == NS_MEDIAWIKI
) {
1713 if ( $this->getID() == 0 ) {
1716 $text = $this->getRawText();
1719 MessageCache
::singleton()->replace( $this->mTitle
->getDBkey(), $text );
1724 * Insert a new empty page record for this article.
1725 * This *must* be followed up by creating a revision
1726 * and running $this->updateRevisionOn( ... );
1727 * or else the record will be left in a funky state.
1728 * Best if all done inside a transaction.
1730 * @param $dbw Database
1731 * @return int The newly created page_id key, or false if the title already existed
1734 public function insertOn( $dbw ) {
1735 wfProfileIn( __METHOD__
);
1737 $page_id = $dbw->nextSequenceValue( 'page_page_id_seq' );
1738 $dbw->insert( 'page', array(
1739 'page_id' => $page_id,
1740 'page_namespace' => $this->mTitle
->getNamespace(),
1741 'page_title' => $this->mTitle
->getDBkey(),
1742 'page_counter' => 0,
1743 'page_restrictions' => '',
1744 'page_is_redirect' => 0, # Will set this shortly...
1746 'page_random' => wfRandom(),
1747 'page_touched' => $dbw->timestamp(),
1748 'page_latest' => 0, # Fill this in shortly...
1749 'page_len' => 0, # Fill this in shortly...
1750 ), __METHOD__
, 'IGNORE' );
1752 $affected = $dbw->affectedRows();
1755 $newid = $dbw->insertId();
1756 $this->mTitle
->resetArticleId( $newid );
1758 wfProfileOut( __METHOD__
);
1760 return $affected ?
$newid : false;
1764 * Update the page record to point to a newly saved revision.
1766 * @param $dbw DatabaseBase: object
1767 * @param $revision Revision: For ID number, and text used to set
1768 length and redirect status fields
1769 * @param $lastRevision Integer: if given, will not overwrite the page field
1770 * when different from the currently set value.
1771 * Giving 0 indicates the new page flag should be set
1773 * @param $lastRevIsRedirect Boolean: if given, will optimize adding and
1774 * removing rows in redirect table.
1775 * @param $setNewFlag Boolean: Set to true if a page flag should be set
1776 * Needed when $lastRevision has to be set to sth. !=0
1777 * @return bool true on success, false on failure
1780 public function updateRevisionOn( &$dbw, $revision, $lastRevision = null, $lastRevIsRedirect = null, $setNewFlag = false ) {
1781 wfProfileIn( __METHOD__
);
1783 $text = $revision->getText();
1784 $rt = Title
::newFromRedirectRecurse( $text );
1786 $conditions = array( 'page_id' => $this->getId() );
1788 if ( !is_null( $lastRevision ) ) {
1789 # An extra check against threads stepping on each other
1790 $conditions['page_latest'] = $lastRevision;
1793 if ( !$setNewFlag ) {
1794 $setNewFlag = ( $lastRevision === 0 );
1797 $dbw->update( 'page',
1799 'page_latest' => $revision->getId(),
1800 'page_touched' => $dbw->timestamp(),
1801 'page_is_new' => $setNewFlag,
1802 'page_is_redirect' => $rt !== null ?
1 : 0,
1803 'page_len' => strlen( $text ),
1808 $result = $dbw->affectedRows() != 0;
1810 $this->updateRedirectOn( $dbw, $rt, $lastRevIsRedirect );
1813 wfProfileOut( __METHOD__
);
1818 * Add row to the redirect table if this is a redirect, remove otherwise.
1820 * @param $dbw Database
1821 * @param $redirectTitle Title object pointing to the redirect target,
1822 * or NULL if this is not a redirect
1823 * @param $lastRevIsRedirect If given, will optimize adding and
1824 * removing rows in redirect table.
1825 * @return bool true on success, false on failure
1828 public function updateRedirectOn( &$dbw, $redirectTitle, $lastRevIsRedirect = null ) {
1829 // Always update redirects (target link might have changed)
1830 // Update/Insert if we don't know if the last revision was a redirect or not
1831 // Delete if changing from redirect to non-redirect
1832 $isRedirect = !is_null( $redirectTitle );
1834 if ( !$isRedirect && !is_null( $lastRevIsRedirect ) && $lastRevIsRedirect === $isRedirect ) {
1838 wfProfileIn( __METHOD__
);
1839 if ( $isRedirect ) {
1840 $this->insertRedirectEntry( $redirectTitle );
1842 // This is not a redirect, remove row from redirect table
1843 $where = array( 'rd_from' => $this->getId() );
1844 $dbw->delete( 'redirect', $where, __METHOD__
);
1847 if ( $this->getTitle()->getNamespace() == NS_FILE
) {
1848 RepoGroup
::singleton()->getLocalRepo()->invalidateImageRedirect( $this->getTitle() );
1850 wfProfileOut( __METHOD__
);
1852 return ( $dbw->affectedRows() != 0 );
1856 * If the given revision is newer than the currently set page_latest,
1857 * update the page record. Otherwise, do nothing.
1859 * @param $dbw Database object
1860 * @param $revision Revision object
1863 public function updateIfNewerOn( &$dbw, $revision ) {
1864 wfProfileIn( __METHOD__
);
1866 $row = $dbw->selectRow(
1867 array( 'revision', 'page' ),
1868 array( 'rev_id', 'rev_timestamp', 'page_is_redirect' ),
1870 'page_id' => $this->getId(),
1871 'page_latest=rev_id' ),
1875 if ( wfTimestamp( TS_MW
, $row->rev_timestamp
) >= $revision->getTimestamp() ) {
1876 wfProfileOut( __METHOD__
);
1879 $prev = $row->rev_id
;
1880 $lastRevIsRedirect = (bool)$row->page_is_redirect
;
1882 # No or missing previous revision; mark the page as new
1884 $lastRevIsRedirect = null;
1887 $ret = $this->updateRevisionOn( $dbw, $revision, $prev, $lastRevIsRedirect );
1889 wfProfileOut( __METHOD__
);
1894 * @param $section empty/null/false or a section number (0, 1, 2, T1, T2...)
1895 * @param $text String: new text of the section
1896 * @param $summary String: new section's subject, only if $section is 'new'
1897 * @param $edittime String: revision timestamp or null to use the current revision
1898 * @return string Complete article text, or null if error
1900 public function replaceSection( $section, $text, $summary = '', $edittime = null ) {
1901 wfProfileIn( __METHOD__
);
1903 if ( strval( $section ) == '' ) {
1904 // Whole-page edit; let the whole text through
1906 if ( is_null( $edittime ) ) {
1907 $rev = Revision
::newFromTitle( $this->mTitle
);
1909 $dbw = wfGetDB( DB_MASTER
);
1910 $rev = Revision
::loadFromTimestamp( $dbw, $this->mTitle
, $edittime );
1914 wfDebug( "Article::replaceSection asked for bogus section (page: " .
1915 $this->getId() . "; section: $section; edittime: $edittime)\n" );
1916 wfProfileOut( __METHOD__
);
1920 $oldtext = $rev->getText();
1922 if ( $section == 'new' ) {
1923 # Inserting a new section
1924 $subject = $summary ?
wfMsgForContent( 'newsectionheaderdefaultlevel', $summary ) . "\n\n" : '';
1925 $text = strlen( trim( $oldtext ) ) > 0
1926 ?
"{$oldtext}\n\n{$subject}{$text}"
1927 : "{$subject}{$text}";
1929 # Replacing an existing section; roll out the big guns
1932 $text = $wgParser->replaceSection( $oldtext, $section, $text );
1936 wfProfileOut( __METHOD__
);
1941 * @deprecated @since 1.7 use Article::doEdit()
1943 function insertNewArticle( $text, $summary, $isminor, $watchthis, $suppressRC = false, $comment = false, $bot = false ) {
1944 wfDeprecated( __METHOD__
);
1946 $flags = EDIT_NEW | EDIT_DEFER_UPDATES | EDIT_AUTOSUMMARY |
1947 ( $isminor ? EDIT_MINOR
: 0 ) |
1948 ( $suppressRC ? EDIT_SUPPRESS_RC
: 0 ) |
1949 ( $bot ? EDIT_FORCE_BOT
: 0 );
1951 # If this is a comment, add the summary as headline
1952 if ( $comment && $summary != "" ) {
1953 $text = wfMsgForContent( 'newsectionheaderdefaultlevel', $summary ) . "\n\n" . $text;
1955 $this->doEdit( $text, $summary, $flags );
1957 $dbw = wfGetDB( DB_MASTER
);
1959 if ( !$this->mTitle
->userIsWatching() ) {
1965 if ( $this->mTitle
->userIsWatching() ) {
1971 $this->doRedirect( $this->isRedirect( $text ) );
1975 * @deprecated @since 1.7 use Article::doEdit()
1977 function updateArticle( $text, $summary, $minor, $watchthis, $forceBot = false, $sectionanchor = '' ) {
1978 wfDeprecated( __METHOD__
);
1980 $flags = EDIT_UPDATE | EDIT_DEFER_UPDATES | EDIT_AUTOSUMMARY |
1981 ( $minor ? EDIT_MINOR
: 0 ) |
1982 ( $forceBot ? EDIT_FORCE_BOT
: 0 );
1984 $status = $this->doEdit( $text, $summary, $flags );
1986 if ( !$status->isOK() ) {
1990 $dbw = wfGetDB( DB_MASTER
);
1992 if ( !$this->mTitle
->userIsWatching() ) {
1998 if ( $this->mTitle
->userIsWatching() ) {
2005 $extraQuery = ''; // Give extensions a chance to modify URL query on update
2006 wfRunHooks( 'ArticleUpdateBeforeRedirect', array( $this, &$sectionanchor, &$extraQuery ) );
2008 $this->doRedirect( $this->isRedirect( $text ), $sectionanchor, $extraQuery );
2013 * Check flags and add EDIT_NEW or EDIT_UPDATE to them as needed.
2015 * @return Int updated $flags
2017 function checkFlags( $flags ) {
2018 if ( !( $flags & EDIT_NEW
) && !( $flags & EDIT_UPDATE
) ) {
2019 if ( $this->mTitle
->getArticleID() ) {
2020 $flags |
= EDIT_UPDATE
;
2032 * Change an existing article or create a new article. Updates RC and all necessary caches,
2033 * optionally via the deferred update array.
2035 * $wgUser must be set before calling this function.
2037 * @param $text String: new text
2038 * @param $summary String: edit summary
2039 * @param $flags Integer bitfield:
2041 * Article is known or assumed to be non-existent, create a new one
2043 * Article is known or assumed to be pre-existing, update it
2045 * Mark this edit minor, if the user is allowed to do so
2047 * Do not log the change in recentchanges
2049 * Mark the edit a "bot" edit regardless of user rights
2050 * EDIT_DEFER_UPDATES
2051 * Defer some of the updates until the end of index.php
2053 * Fill in blank summaries with generated text where possible
2055 * If neither EDIT_NEW nor EDIT_UPDATE is specified, the status of the article will be detected.
2056 * If EDIT_UPDATE is specified and the article doesn't exist, the function will an
2057 * edit-gone-missing error. If EDIT_NEW is specified and the article does exist, an
2058 * edit-already-exists error will be returned. These two conditions are also possible with
2059 * auto-detection due to MediaWiki's performance-optimised locking strategy.
2061 * @param $baseRevId the revision ID this edit was based off, if any
2062 * @param $user User (optional), $wgUser will be used if not passed
2064 * @return Status object. Possible errors:
2065 * edit-hook-aborted: The ArticleSave hook aborted the edit but didn't set the fatal flag of $status
2066 * edit-gone-missing: In update mode, but the article didn't exist
2067 * edit-conflict: In update mode, the article changed unexpectedly
2068 * edit-no-change: Warning that the text was the same as before
2069 * edit-already-exists: In creation mode, but the article already exists
2071 * Extensions may define additional errors.
2073 * $return->value will contain an associative array with members as follows:
2074 * new: Boolean indicating if the function attempted to create a new article
2075 * revision: The revision object for the inserted revision, or null
2077 * Compatibility note: this function previously returned a boolean value indicating success/failure
2079 public function doEdit( $text, $summary, $flags = 0, $baseRevId = false, $user = null ) {
2080 global $wgUser, $wgDBtransactions, $wgUseAutomaticEditSummaries;
2082 # Low-level sanity check
2083 if ( $this->mTitle
->getText() === '' ) {
2084 throw new MWException( 'Something is trying to edit an article with an empty title' );
2087 wfProfileIn( __METHOD__
);
2089 $user = is_null( $user ) ?
$wgUser : $user;
2090 $status = Status
::newGood( array() );
2092 # Load $this->mTitle->getArticleID() and $this->mLatest if it's not already
2093 $this->loadPageData();
2095 $flags = $this->checkFlags( $flags );
2097 if ( !wfRunHooks( 'ArticleSave', array( &$this, &$user, &$text, &$summary,
2098 $flags & EDIT_MINOR
, null, null, &$flags, &$status ) ) )
2100 wfDebug( __METHOD__
. ": ArticleSave hook aborted save!\n" );
2102 if ( $status->isOK() ) {
2103 $status->fatal( 'edit-hook-aborted' );
2106 wfProfileOut( __METHOD__
);
2110 # Silently ignore EDIT_MINOR if not allowed
2111 $isminor = ( $flags & EDIT_MINOR
) && $user->isAllowed( 'minoredit' );
2112 $bot = $flags & EDIT_FORCE_BOT
;
2114 $oldtext = $this->getRawText(); // current revision
2115 $oldsize = strlen( $oldtext );
2117 # Provide autosummaries if one is not provided and autosummaries are enabled.
2118 if ( $wgUseAutomaticEditSummaries && $flags & EDIT_AUTOSUMMARY
&& $summary == '' ) {
2119 $summary = $this->getAutosummary( $oldtext, $text, $flags );
2122 $editInfo = $this->prepareTextForEdit( $text, null, $user );
2123 $text = $editInfo->pst
;
2124 $newsize = strlen( $text );
2126 $dbw = wfGetDB( DB_MASTER
);
2127 $now = wfTimestampNow();
2128 $this->mTimestamp
= $now;
2130 if ( $flags & EDIT_UPDATE
) {
2131 # Update article, but only if changed.
2132 $status->value
['new'] = false;
2134 # Make sure the revision is either completely inserted or not inserted at all
2135 if ( !$wgDBtransactions ) {
2136 $userAbort = ignore_user_abort( true );
2139 $changed = ( strcmp( $text, $oldtext ) != 0 );
2142 $this->mGoodAdjustment
= (int)$this->isCountable( $text )
2143 - (int)$this->isCountable( $oldtext );
2144 $this->mTotalAdjustment
= 0;
2146 if ( !$this->mLatest
) {
2147 # Article gone missing
2148 wfDebug( __METHOD__
. ": EDIT_UPDATE specified but article doesn't exist\n" );
2149 $status->fatal( 'edit-gone-missing' );
2151 wfProfileOut( __METHOD__
);
2155 $revision = new Revision( array(
2156 'page' => $this->getId(),
2157 'comment' => $summary,
2158 'minor_edit' => $isminor,
2160 'parent_id' => $this->mLatest
,
2161 'user' => $user->getId(),
2162 'user_text' => $user->getName(),
2167 $revisionId = $revision->insertOn( $dbw );
2171 # Note that we use $this->mLatest instead of fetching a value from the master DB
2172 # during the course of this function. This makes sure that EditPage can detect
2173 # edit conflicts reliably, either by $ok here, or by $article->getTimestamp()
2174 # before this function is called. A previous function used a separate query, this
2175 # creates a window where concurrent edits can cause an ignored edit conflict.
2176 $ok = $this->updateRevisionOn( $dbw, $revision, $this->mLatest
);
2179 /* Belated edit conflict! Run away!! */
2180 $status->fatal( 'edit-conflict' );
2182 # Delete the invalid revision if the DB is not transactional
2183 if ( !$wgDBtransactions ) {
2184 $dbw->delete( 'revision', array( 'rev_id' => $revisionId ), __METHOD__
);
2190 global $wgUseRCPatrol;
2191 wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $revision, $baseRevId, $user ) );
2192 # Update recentchanges
2193 if ( !( $flags & EDIT_SUPPRESS_RC
) ) {
2194 # Mark as patrolled if the user can do so
2195 $patrolled = $wgUseRCPatrol && !count(
2196 $this->mTitle
->getUserPermissionsErrors( 'autopatrol', $user ) );
2197 # Add RC row to the DB
2198 $rc = RecentChange
::notifyEdit( $now, $this->mTitle
, $isminor, $user, $summary,
2199 $this->mLatest
, $this->getTimestamp(), $bot, '', $oldsize, $newsize,
2200 $revisionId, $patrolled
2203 # Log auto-patrolled edits
2205 PatrolLog
::record( $rc, true );
2208 $user->incEditCount();
2212 $status->warning( 'edit-no-change' );
2214 // Keep the same revision ID, but do some updates on it
2215 $revisionId = $this->getLatest();
2216 // Update page_touched, this is usually implicit in the page update
2217 // Other cache updates are done in onArticleEdit()
2218 $this->mTitle
->invalidateCache();
2221 if ( !$wgDBtransactions ) {
2222 ignore_user_abort( $userAbort );
2225 // Now that ignore_user_abort is restored, we can respond to fatal errors
2226 if ( !$status->isOK() ) {
2227 wfProfileOut( __METHOD__
);
2231 # Invalidate cache of this article and all pages using this article
2232 # as a template. Partly deferred.
2233 Article
::onArticleEdit( $this->mTitle
);
2234 # Update links tables, site stats, etc.
2235 $this->editUpdates( $text, $summary, $isminor, $now, $revisionId, $changed, $user );
2237 # Create new article
2238 $status->value
['new'] = true;
2240 # Set statistics members
2241 # We work out if it's countable after PST to avoid counter drift
2242 # when articles are created with {{subst:}}
2243 $this->mGoodAdjustment
= (int)$this->isCountable( $text );
2244 $this->mTotalAdjustment
= 1;
2248 # Add the page record; stake our claim on this title!
2249 # This will return false if the article already exists
2250 $newid = $this->insertOn( $dbw );
2252 if ( $newid === false ) {
2254 $status->fatal( 'edit-already-exists' );
2256 wfProfileOut( __METHOD__
);
2260 # Save the revision text...
2261 $revision = new Revision( array(
2263 'comment' => $summary,
2264 'minor_edit' => $isminor,
2266 'user' => $user->getId(),
2267 'user_text' => $user->getName(),
2270 $revisionId = $revision->insertOn( $dbw );
2272 $this->mTitle
->resetArticleID( $newid );
2274 # Update the page record with revision data
2275 $this->updateRevisionOn( $dbw, $revision, 0 );
2277 wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $revision, false, $user ) );
2279 # Update recentchanges
2280 if ( !( $flags & EDIT_SUPPRESS_RC
) ) {
2281 global $wgUseRCPatrol, $wgUseNPPatrol;
2283 # Mark as patrolled if the user can do so
2284 $patrolled = ( $wgUseRCPatrol ||
$wgUseNPPatrol ) && !count(
2285 $this->mTitle
->getUserPermissionsErrors( 'autopatrol', $user ) );
2286 # Add RC row to the DB
2287 $rc = RecentChange
::notifyNew( $now, $this->mTitle
, $isminor, $user, $summary, $bot,
2288 '', strlen( $text ), $revisionId, $patrolled );
2290 # Log auto-patrolled edits
2292 PatrolLog
::record( $rc, true );
2295 $user->incEditCount();
2298 # Update links, etc.
2299 $this->editUpdates( $text, $summary, $isminor, $now, $revisionId, true, $user );
2302 Article
::onArticleCreate( $this->mTitle
);
2304 wfRunHooks( 'ArticleInsertComplete', array( &$this, &$user, $text, $summary,
2305 $flags & EDIT_MINOR
, null, null, &$flags, $revision ) );
2308 # Do updates right now unless deferral was requested
2309 if ( !( $flags & EDIT_DEFER_UPDATES
) ) {
2313 // Return the new revision (or null) to the caller
2314 $status->value
['revision'] = $revision;
2316 wfRunHooks( 'ArticleSaveComplete', array( &$this, &$user, $text, $summary,
2317 $flags & EDIT_MINOR
, null, null, &$flags, $revision, &$status, $baseRevId ) );
2319 wfProfileOut( __METHOD__
);
2324 * Output a redirect back to the article.
2325 * This is typically used after an edit.
2327 * @param $noRedir Boolean: add redirect=no
2328 * @param $sectionAnchor String: section to redirect to, including "#"
2329 * @param $extraQuery String: extra query params
2331 public function doRedirect( $noRedir = false, $sectionAnchor = '', $extraQuery = '' ) {
2335 $query = 'redirect=no';
2337 $query .= "&$extraQuery";
2339 $query = $extraQuery;
2342 $wgOut->redirect( $this->mTitle
->getFullURL( $query ) . $sectionAnchor );
2346 * Mark this particular edit/page as patrolled
2348 public function markpatrolled() {
2349 global $wgOut, $wgUser, $wgRequest;
2351 $wgOut->setRobotPolicy( 'noindex,nofollow' );
2353 # If we haven't been given an rc_id value, we can't do anything
2354 $rcid = (int) $wgRequest->getVal( 'rcid' );
2356 if ( !$wgUser->matchEditToken( $wgRequest->getVal( 'token' ), $rcid ) ) {
2357 $wgOut->showErrorPage( 'sessionfailure-title', 'sessionfailure' );
2361 $rc = RecentChange
::newFromId( $rcid );
2363 if ( is_null( $rc ) ) {
2364 $wgOut->showErrorPage( 'markedaspatrollederror', 'markedaspatrollederrortext' );
2368 # It would be nice to see where the user had actually come from, but for now just guess
2369 $returnto = $rc->getAttribute( 'rc_type' ) == RC_NEW ?
'Newpages' : 'Recentchanges';
2370 $return = SpecialPage
::getTitleFor( $returnto );
2372 $errors = $rc->doMarkPatrolled();
2374 if ( in_array( array( 'rcpatroldisabled' ), $errors ) ) {
2375 $wgOut->showErrorPage( 'rcpatroldisabled', 'rcpatroldisabledtext' );
2380 if ( in_array( array( 'hookaborted' ), $errors ) ) {
2381 // The hook itself has handled any output
2385 if ( in_array( array( 'markedaspatrollederror-noautopatrol' ), $errors ) ) {
2386 $wgOut->setPageTitle( wfMsg( 'markedaspatrollederror' ) );
2387 $wgOut->addWikiMsg( 'markedaspatrollederror-noautopatrol' );
2388 $wgOut->returnToMain( false, $return );
2393 if ( !empty( $errors ) ) {
2394 $wgOut->showPermissionsErrorPage( $errors );
2400 $wgOut->setPageTitle( wfMsg( 'markedaspatrolled' ) );
2401 $wgOut->addWikiMsg( 'markedaspatrolledtext', $rc->getTitle()->getPrefixedText() );
2402 $wgOut->returnToMain( false, $return );
2406 * User-interface handler for the "watch" action
2408 public function watch() {
2409 global $wgUser, $wgOut;
2411 if ( $wgUser->isAnon() ) {
2412 $wgOut->showErrorPage( 'watchnologin', 'watchnologintext' );
2416 if ( wfReadOnly() ) {
2417 $wgOut->readOnlyPage();
2421 if ( $this->doWatch() ) {
2422 $wgOut->setPagetitle( wfMsg( 'addedwatch' ) );
2423 $wgOut->setRobotPolicy( 'noindex,nofollow' );
2424 $wgOut->addWikiMsg( 'addedwatchtext', $this->mTitle
->getPrefixedText() );
2427 $wgOut->returnToMain( true, $this->mTitle
->getPrefixedText() );
2431 * Add this page to $wgUser's watchlist
2432 * @return bool true on successful watch operation
2434 public function doWatch() {
2437 if ( $wgUser->isAnon() ) {
2441 if ( wfRunHooks( 'WatchArticle', array( &$wgUser, &$this ) ) ) {
2442 $wgUser->addWatch( $this->mTitle
);
2443 return wfRunHooks( 'WatchArticleComplete', array( &$wgUser, &$this ) );
2450 * User interface handler for the "unwatch" action.
2452 public function unwatch() {
2453 global $wgUser, $wgOut;
2455 if ( $wgUser->isAnon() ) {
2456 $wgOut->showErrorPage( 'watchnologin', 'watchnologintext' );
2460 if ( wfReadOnly() ) {
2461 $wgOut->readOnlyPage();
2465 if ( $this->doUnwatch() ) {
2466 $wgOut->setPagetitle( wfMsg( 'removedwatch' ) );
2467 $wgOut->setRobotPolicy( 'noindex,nofollow' );
2468 $wgOut->addWikiMsg( 'removedwatchtext', $this->mTitle
->getPrefixedText() );
2471 $wgOut->returnToMain( true, $this->mTitle
->getPrefixedText() );
2475 * Stop watching a page
2476 * @return bool true on successful unwatch
2478 public function doUnwatch() {
2481 if ( $wgUser->isAnon() ) {
2485 if ( wfRunHooks( 'UnwatchArticle', array( &$wgUser, &$this ) ) ) {
2486 $wgUser->removeWatch( $this->mTitle
);
2487 return wfRunHooks( 'UnwatchArticleComplete', array( &$wgUser, &$this ) );
2494 * action=protect handler
2496 public function protect() {
2497 $form = new ProtectionForm( $this );
2502 * action=unprotect handler (alias)
2504 public function unprotect() {
2509 * Update the article's restriction field, and leave a log entry.
2511 * @param $limit Array: set of restriction keys
2512 * @param $reason String
2513 * @param &$cascade Integer. Set to false if cascading protection isn't allowed.
2514 * @param $expiry Array: per restriction type expiration
2515 * @return bool true on success
2517 public function updateRestrictions( $limit = array(), $reason = '', &$cascade = 0, $expiry = array() ) {
2518 global $wgUser, $wgContLang;
2520 $restrictionTypes = $this->mTitle
->getRestrictionTypes();
2522 $id = $this->mTitle
->getArticleID();
2525 wfDebug( "updateRestrictions failed: article id $id <= 0\n" );
2529 if ( wfReadOnly() ) {
2530 wfDebug( "updateRestrictions failed: read-only\n" );
2534 if ( !$this->mTitle
->userCan( 'protect' ) ) {
2535 wfDebug( "updateRestrictions failed: insufficient permissions\n" );
2543 // Take this opportunity to purge out expired restrictions
2544 Title
::purgeExpiredRestrictions();
2546 # FIXME: Same limitations as described in ProtectionForm.php (line 37);
2547 # we expect a single selection, but the schema allows otherwise.
2549 $updated = Article
::flattenRestrictions( $limit );
2552 foreach ( $restrictionTypes as $action ) {
2553 if ( isset( $expiry[$action] ) ) {
2554 # Get current restrictions on $action
2555 $aLimits = $this->mTitle
->getRestrictions( $action );
2556 $current[$action] = implode( '', $aLimits );
2557 # Are any actual restrictions being dealt with here?
2558 $aRChanged = count( $aLimits ) ||
!empty( $limit[$action] );
2560 # If something changed, we need to log it. Checking $aRChanged
2561 # assures that "unprotecting" a page that is not protected does
2562 # not log just because the expiry was "changed".
2563 if ( $aRChanged && $this->mTitle
->mRestrictionsExpiry
[$action] != $expiry[$action] ) {
2569 $current = Article
::flattenRestrictions( $current );
2571 $changed = ( $changed ||
$current != $updated );
2572 $changed = $changed ||
( $updated && $this->mTitle
->areRestrictionsCascading() != $cascade );
2573 $protect = ( $updated != '' );
2575 # If nothing's changed, do nothing
2577 if ( wfRunHooks( 'ArticleProtect', array( &$this, &$wgUser, $limit, $reason ) ) ) {
2578 $dbw = wfGetDB( DB_MASTER
);
2580 # Prepare a null revision to be added to the history
2581 $modified = $current != '' && $protect;
2584 $comment_type = $modified ?
'modifiedarticleprotection' : 'protectedarticle';
2586 $comment_type = 'unprotectedarticle';
2589 $comment = $wgContLang->ucfirst( wfMsgForContent( $comment_type, $this->mTitle
->getPrefixedText() ) );
2591 # Only restrictions with the 'protect' right can cascade...
2592 # Otherwise, people who cannot normally protect can "protect" pages via transclusion
2593 $editrestriction = isset( $limit['edit'] ) ?
array( $limit['edit'] ) : $this->mTitle
->getRestrictions( 'edit' );
2595 # The schema allows multiple restrictions
2596 if ( !in_array( 'protect', $editrestriction ) && !in_array( 'sysop', $editrestriction ) ) {
2600 $cascade_description = '';
2603 $cascade_description = ' [' . wfMsgForContent( 'protect-summary-cascade' ) . ']';
2607 $comment .= ": $reason";
2610 $editComment = $comment;
2611 $encodedExpiry = array();
2612 $protect_description = '';
2613 foreach ( $limit as $action => $restrictions ) {
2614 if ( !isset( $expiry[$action] ) )
2615 $expiry[$action] = Block
::infinity();
2617 $encodedExpiry[$action] = Block
::encodeExpiry( $expiry[$action], $dbw );
2618 if ( $restrictions != '' ) {
2619 $protect_description .= "[$action=$restrictions] (";
2620 if ( $encodedExpiry[$action] != 'infinity' ) {
2621 $protect_description .= wfMsgForContent( 'protect-expiring',
2622 $wgContLang->timeanddate( $expiry[$action], false, false ) ,
2623 $wgContLang->date( $expiry[$action], false, false ) ,
2624 $wgContLang->time( $expiry[$action], false, false ) );
2626 $protect_description .= wfMsgForContent( 'protect-expiry-indefinite' );
2629 $protect_description .= ') ';
2632 $protect_description = trim( $protect_description );
2634 if ( $protect_description && $protect ) {
2635 $editComment .= " ($protect_description)";
2639 $editComment .= "$cascade_description";
2642 # Update restrictions table
2643 foreach ( $limit as $action => $restrictions ) {
2644 if ( $restrictions != '' ) {
2645 $dbw->replace( 'page_restrictions', array( array( 'pr_page', 'pr_type' ) ),
2646 array( 'pr_page' => $id,
2647 'pr_type' => $action,
2648 'pr_level' => $restrictions,
2649 'pr_cascade' => ( $cascade && $action == 'edit' ) ?
1 : 0,
2650 'pr_expiry' => $encodedExpiry[$action]
2655 $dbw->delete( 'page_restrictions', array( 'pr_page' => $id,
2656 'pr_type' => $action ), __METHOD__
);
2660 # Insert a null revision
2661 $nullRevision = Revision
::newNullRevision( $dbw, $id, $editComment, true );
2662 $nullRevId = $nullRevision->insertOn( $dbw );
2664 $latest = $this->getLatest();
2665 # Update page record
2666 $dbw->update( 'page',
2668 'page_touched' => $dbw->timestamp(),
2669 'page_restrictions' => '',
2670 'page_latest' => $nullRevId
2671 ), array( /* WHERE */
2673 ), 'Article::protect'
2676 wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $nullRevision, $latest, $wgUser ) );
2677 wfRunHooks( 'ArticleProtectComplete', array( &$this, &$wgUser, $limit, $reason ) );
2679 # Update the protection log
2680 $log = new LogPage( 'protect' );
2682 $params = array( $protect_description, $cascade ?
'cascade' : '' );
2683 $log->addEntry( $modified ?
'modify' : 'protect', $this->mTitle
, trim( $reason ), $params );
2685 $log->addEntry( 'unprotect', $this->mTitle
, $reason );
2688 } # End "changed" check
2694 * Take an array of page restrictions and flatten it to a string
2695 * suitable for insertion into the page_restrictions field.
2696 * @param $limit Array
2699 protected static function flattenRestrictions( $limit ) {
2700 if ( !is_array( $limit ) ) {
2701 throw new MWException( 'Article::flattenRestrictions given non-array restriction set' );
2707 foreach ( $limit as $action => $restrictions ) {
2708 if ( $restrictions != '' ) {
2709 $bits[] = "$action=$restrictions";
2713 return implode( ':', $bits );
2717 * Auto-generates a deletion reason
2719 * @param &$hasHistory Boolean: whether the page has a history
2720 * @return mixed String containing deletion reason or empty string, or boolean false
2721 * if no revision occurred
2723 public function generateReason( &$hasHistory ) {
2726 $dbw = wfGetDB( DB_MASTER
);
2727 // Get the last revision
2728 $rev = Revision
::newFromTitle( $this->mTitle
);
2730 if ( is_null( $rev ) ) {
2734 // Get the article's contents
2735 $contents = $rev->getText();
2738 // If the page is blank, use the text from the previous revision,
2739 // which can only be blank if there's a move/import/protect dummy revision involved
2740 if ( $contents == '' ) {
2741 $prev = $rev->getPrevious();
2744 $contents = $prev->getText();
2749 // Find out if there was only one contributor
2750 // Only scan the last 20 revisions
2751 $res = $dbw->select( 'revision', 'rev_user_text',
2752 array( 'rev_page' => $this->getID(), $dbw->bitAnd( 'rev_deleted', Revision
::DELETED_USER
) . ' = 0' ),
2754 array( 'LIMIT' => 20 )
2757 if ( $res === false ) {
2758 // This page has no revisions, which is very weird
2762 $hasHistory = ( $res->numRows() > 1 );
2763 $row = $dbw->fetchObject( $res );
2765 if ( $row ) { // $row is false if the only contributor is hidden
2766 $onlyAuthor = $row->rev_user_text
;
2767 // Try to find a second contributor
2768 foreach ( $res as $row ) {
2769 if ( $row->rev_user_text
!= $onlyAuthor ) { // Bug 22999
2770 $onlyAuthor = false;
2775 $onlyAuthor = false;
2778 // Generate the summary with a '$1' placeholder
2780 // The current revision is blank and the one before is also
2781 // blank. It's just not our lucky day
2782 $reason = wfMsgForContent( 'exbeforeblank', '$1' );
2784 if ( $onlyAuthor ) {
2785 $reason = wfMsgForContent( 'excontentauthor', '$1', $onlyAuthor );
2787 $reason = wfMsgForContent( 'excontent', '$1' );
2791 if ( $reason == '-' ) {
2792 // Allow these UI messages to be blanked out cleanly
2796 // Replace newlines with spaces to prevent uglyness
2797 $contents = preg_replace( "/[\n\r]/", ' ', $contents );
2798 // Calculate the maximum amount of chars to get
2799 // Max content length = max comment length - length of the comment (excl. $1) - '...'
2800 $maxLength = 255 - ( strlen( $reason ) - 2 ) - 3;
2801 $contents = $wgContLang->truncate( $contents, $maxLength );
2802 // Remove possible unfinished links
2803 $contents = preg_replace( '/\[\[([^\]]*)\]?$/', '$1', $contents );
2804 // Now replace the '$1' placeholder
2805 $reason = str_replace( '$1', $contents, $reason );
2812 * UI entry point for page deletion
2814 public function delete() {
2815 global $wgUser, $wgOut, $wgRequest;
2817 $confirm = $wgRequest->wasPosted() &&
2818 $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ) );
2820 $this->DeleteReasonList
= $wgRequest->getText( 'wpDeleteReasonList', 'other' );
2821 $this->DeleteReason
= $wgRequest->getText( 'wpReason' );
2823 $reason = $this->DeleteReasonList
;
2825 if ( $reason != 'other' && $this->DeleteReason
!= '' ) {
2826 // Entry from drop down menu + additional comment
2827 $reason .= wfMsgForContent( 'colon-separator' ) . $this->DeleteReason
;
2828 } elseif ( $reason == 'other' ) {
2829 $reason = $this->DeleteReason
;
2832 # Flag to hide all contents of the archived revisions
2833 $suppress = $wgRequest->getVal( 'wpSuppress' ) && $wgUser->isAllowed( 'suppressrevision' );
2835 # This code desperately needs to be totally rewritten
2837 # Read-only check...
2838 if ( wfReadOnly() ) {
2839 $wgOut->readOnlyPage();
2845 $permission_errors = $this->mTitle
->getUserPermissionsErrors( 'delete', $wgUser );
2847 if ( count( $permission_errors ) > 0 ) {
2848 $wgOut->showPermissionsErrorPage( $permission_errors );
2853 $wgOut->setPagetitle( wfMsg( 'delete-confirm', $this->mTitle
->getPrefixedText() ) );
2855 # Better double-check that it hasn't been deleted yet!
2856 $dbw = wfGetDB( DB_MASTER
);
2857 $conds = $this->mTitle
->pageCond();
2858 $latest = $dbw->selectField( 'page', 'page_latest', $conds, __METHOD__
);
2859 if ( $latest === false ) {
2860 $wgOut->showFatalError(
2863 array( 'class' => 'error mw-error-cannotdelete' ),
2864 wfMsgExt( 'cannotdelete', array( 'parse' ), $this->mTitle
->getPrefixedText() )
2867 $wgOut->addHTML( Xml
::element( 'h2', null, LogPage
::logName( 'delete' ) ) );
2868 LogEventsList
::showLogExtract(
2871 $this->mTitle
->getPrefixedText()
2877 # Hack for big sites
2878 $bigHistory = $this->isBigDeletion();
2879 if ( $bigHistory && !$this->mTitle
->userCan( 'bigdelete' ) ) {
2880 global $wgLang, $wgDeleteRevisionsLimit;
2882 $wgOut->wrapWikiMsg( "<div class='error'>\n$1\n</div>\n",
2883 array( 'delete-toobig', $wgLang->formatNum( $wgDeleteRevisionsLimit ) ) );
2889 $this->doDelete( $reason, $suppress );
2891 if ( $wgRequest->getCheck( 'wpWatch' ) && $wgUser->isLoggedIn() ) {
2893 } elseif ( $this->mTitle
->userIsWatching() ) {
2900 // Generate deletion reason
2901 $hasHistory = false;
2903 $reason = $this->generateReason( $hasHistory );
2906 // If the page has a history, insert a warning
2907 if ( $hasHistory && !$confirm ) {
2910 $skin = $wgUser->getSkin();
2911 $revisions = $this->estimateRevisionCount();
2913 $wgOut->addHTML( '<strong class="mw-delete-warning-revisions">' .
2914 wfMsgExt( 'historywarning', array( 'parseinline' ), $wgLang->formatNum( $revisions ) ) .
2915 wfMsgHtml( 'word-separator' ) . $skin->link( $this->mTitle
,
2916 wfMsgHtml( 'history' ),
2917 array( 'rel' => 'archives' ),
2918 array( 'action' => 'history' ) ) .
2922 if ( $bigHistory ) {
2923 global $wgDeleteRevisionsLimit;
2924 $wgOut->wrapWikiMsg( "<div class='error'>\n$1\n</div>\n",
2925 array( 'delete-warning-toobig', $wgLang->formatNum( $wgDeleteRevisionsLimit ) ) );
2929 return $this->confirmDelete( $reason );
2933 * @return bool whether or not the page surpasses $wgDeleteRevisionsLimit revisions
2935 public function isBigDeletion() {
2936 global $wgDeleteRevisionsLimit;
2938 if ( $wgDeleteRevisionsLimit ) {
2939 $revCount = $this->estimateRevisionCount();
2941 return $revCount > $wgDeleteRevisionsLimit;
2948 * @return int approximate revision count
2950 public function estimateRevisionCount() {
2951 $dbr = wfGetDB( DB_SLAVE
);
2953 // For an exact count...
2954 // return $dbr->selectField( 'revision', 'COUNT(*)',
2955 // array( 'rev_page' => $this->getId() ), __METHOD__ );
2956 return $dbr->estimateRowCount( 'revision', '*',
2957 array( 'rev_page' => $this->getId() ), __METHOD__
);
2961 * Get the last N authors
2962 * @param $num Integer: number of revisions to get
2963 * @param $revLatest String: the latest rev_id, selected from the master (optional)
2964 * @return array Array of authors, duplicates not removed
2966 public function getLastNAuthors( $num, $revLatest = 0 ) {
2967 wfProfileIn( __METHOD__
);
2968 // First try the slave
2969 // If that doesn't have the latest revision, try the master
2971 $db = wfGetDB( DB_SLAVE
);
2974 $res = $db->select( array( 'page', 'revision' ),
2975 array( 'rev_id', 'rev_user_text' ),
2977 'page_namespace' => $this->mTitle
->getNamespace(),
2978 'page_title' => $this->mTitle
->getDBkey(),
2979 'rev_page = page_id'
2980 ), __METHOD__
, $this->getSelectOptions( array(
2981 'ORDER BY' => 'rev_timestamp DESC',
2987 wfProfileOut( __METHOD__
);
2991 $row = $db->fetchObject( $res );
2993 if ( $continue == 2 && $revLatest && $row->rev_id
!= $revLatest ) {
2994 $db = wfGetDB( DB_MASTER
);
2999 } while ( $continue );
3001 $authors = array( $row->rev_user_text
);
3003 foreach ( $res as $row ) {
3004 $authors[] = $row->rev_user_text
;
3007 wfProfileOut( __METHOD__
);
3012 * Output deletion confirmation dialog
3013 * FIXME: Move to another file?
3014 * @param $reason String: prefilled reason
3016 public function confirmDelete( $reason ) {
3017 global $wgOut, $wgUser;
3019 wfDebug( "Article::confirmDelete\n" );
3021 $deleteBackLink = $wgUser->getSkin()->linkKnown( $this->mTitle
);
3022 $wgOut->setSubtitle( wfMsgHtml( 'delete-backlink', $deleteBackLink ) );
3023 $wgOut->setRobotPolicy( 'noindex,nofollow' );
3024 $wgOut->addWikiMsg( 'confirmdeletetext' );
3026 wfRunHooks( 'ArticleConfirmDelete', array( $this, $wgOut, &$reason ) );
3028 if ( $wgUser->isAllowed( 'suppressrevision' ) ) {
3029 $suppress = "<tr id=\"wpDeleteSuppressRow\">
3031 <td class='mw-input'><strong>" .
3032 Xml
::checkLabel( wfMsg( 'revdelete-suppress' ),
3033 'wpSuppress', 'wpSuppress', false, array( 'tabindex' => '4' ) ) .
3039 $checkWatch = $wgUser->getBoolOption( 'watchdeletion' ) ||
$this->mTitle
->userIsWatching();
3041 $form = Xml
::openElement( 'form', array( 'method' => 'post',
3042 'action' => $this->mTitle
->getLocalURL( 'action=delete' ), 'id' => 'deleteconfirm' ) ) .
3043 Xml
::openElement( 'fieldset', array( 'id' => 'mw-delete-table' ) ) .
3044 Xml
::tags( 'legend', null, wfMsgExt( 'delete-legend', array( 'parsemag', 'escapenoentities' ) ) ) .
3045 Xml
::openElement( 'table', array( 'id' => 'mw-deleteconfirm-table' ) ) .
3046 "<tr id=\"wpDeleteReasonListRow\">
3047 <td class='mw-label'>" .
3048 Xml
::label( wfMsg( 'deletecomment' ), 'wpDeleteReasonList' ) .
3050 <td class='mw-input'>" .
3051 Xml
::listDropDown( 'wpDeleteReasonList',
3052 wfMsgForContent( 'deletereason-dropdown' ),
3053 wfMsgForContent( 'deletereasonotherlist' ), '', 'wpReasonDropDown', 1 ) .
3056 <tr id=\"wpDeleteReasonRow\">
3057 <td class='mw-label'>" .
3058 Xml
::label( wfMsg( 'deleteotherreason' ), 'wpReason' ) .
3060 <td class='mw-input'>" .
3061 Html
::input( 'wpReason', $reason, 'text', array(
3063 'maxlength' => '255',
3071 # Disallow watching if user is not logged in
3072 if ( $wgUser->isLoggedIn() ) {
3076 <td class='mw-input'>" .
3077 Xml
::checkLabel( wfMsg( 'watchthis' ),
3078 'wpWatch', 'wpWatch', $checkWatch, array( 'tabindex' => '3' ) ) .
3087 <td class='mw-submit'>" .
3088 Xml
::submitButton( wfMsg( 'deletepage' ),
3089 array( 'name' => 'wpConfirmB', 'id' => 'wpConfirmB', 'tabindex' => '5' ) ) .
3092 Xml
::closeElement( 'table' ) .
3093 Xml
::closeElement( 'fieldset' ) .
3094 Html
::hidden( 'wpEditToken', $wgUser->editToken() ) .
3095 Xml
::closeElement( 'form' );
3097 if ( $wgUser->isAllowed( 'editinterface' ) ) {
3098 $skin = $wgUser->getSkin();
3099 $title = Title
::makeTitle( NS_MEDIAWIKI
, 'Deletereason-dropdown' );
3100 $link = $skin->link(
3102 wfMsgHtml( 'delete-edit-reasonlist' ),
3104 array( 'action' => 'edit' )
3106 $form .= '<p class="mw-delete-editreasons">' . $link . '</p>';
3109 $wgOut->addHTML( $form );
3110 $wgOut->addHTML( Xml
::element( 'h2', null, LogPage
::logName( 'delete' ) ) );
3111 LogEventsList
::showLogExtract( $wgOut, 'delete',
3112 $this->mTitle
->getPrefixedText()
3117 * Perform a deletion and output success or failure messages
3119 public function doDelete( $reason, $suppress = false ) {
3120 global $wgOut, $wgUser;
3122 $id = $this->mTitle
->getArticleID( Title
::GAID_FOR_UPDATE
);
3125 if ( wfRunHooks( 'ArticleDelete', array( &$this, &$wgUser, &$reason, &$error ) ) ) {
3126 if ( $this->doDeleteArticle( $reason, $suppress, $id ) ) {
3127 $deleted = $this->mTitle
->getPrefixedText();
3129 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
3130 $wgOut->setRobotPolicy( 'noindex,nofollow' );
3132 $loglink = '[[Special:Log/delete|' . wfMsgNoTrans( 'deletionlog' ) . ']]';
3134 $wgOut->addWikiMsg( 'deletedtext', $deleted, $loglink );
3135 $wgOut->returnToMain( false );
3136 wfRunHooks( 'ArticleDeleteComplete', array( &$this, &$wgUser, $reason, $id ) );
3139 if ( $error == '' ) {
3140 $wgOut->showFatalError(
3143 array( 'class' => 'error mw-error-cannotdelete' ),
3144 wfMsgExt( 'cannotdelete', array( 'parse' ), $this->mTitle
->getPrefixedText() )
3148 $wgOut->addHTML( Xml
::element( 'h2', null, LogPage
::logName( 'delete' ) ) );
3150 LogEventsList
::showLogExtract(
3153 $this->mTitle
->getPrefixedText()
3156 $wgOut->showFatalError( $error );
3162 * Back-end article deletion
3163 * Deletes the article with database consistency, writes logs, purges caches
3165 * @param $reason string delete reason for deletion log
3166 * @param suppress bitfield
3167 * Revision::DELETED_TEXT
3168 * Revision::DELETED_COMMENT
3169 * Revision::DELETED_USER
3170 * Revision::DELETED_RESTRICTED
3171 * @param $id int article ID
3172 * @param $commit boolean defaults to true, triggers transaction end
3173 * @return boolean true if successful
3175 public function doDeleteArticle( $reason, $suppress = false, $id = 0, $commit = true ) {
3176 global $wgDeferredUpdateList, $wgUseTrackbacks;
3178 wfDebug( __METHOD__
. "\n" );
3180 $dbw = wfGetDB( DB_MASTER
);
3181 $t = $this->mTitle
->getDBkey();
3182 $id = $id ?
$id : $this->mTitle
->getArticleID( Title
::GAID_FOR_UPDATE
);
3184 if ( $t === '' ||
$id == 0 ) {
3188 $u = new SiteStatsUpdate( 0, 1, - (int)$this->isCountable( $this->getRawText() ), -1 );
3189 array_push( $wgDeferredUpdateList, $u );
3191 // Bitfields to further suppress the content
3194 // This should be 15...
3195 $bitfield |
= Revision
::DELETED_TEXT
;
3196 $bitfield |
= Revision
::DELETED_COMMENT
;
3197 $bitfield |
= Revision
::DELETED_USER
;
3198 $bitfield |
= Revision
::DELETED_RESTRICTED
;
3200 $bitfield = 'rev_deleted';
3204 // For now, shunt the revision data into the archive table.
3205 // Text is *not* removed from the text table; bulk storage
3206 // is left intact to avoid breaking block-compression or
3207 // immutable storage schemes.
3209 // For backwards compatibility, note that some older archive
3210 // table entries will have ar_text and ar_flags fields still.
3212 // In the future, we may keep revisions and mark them with
3213 // the rev_deleted field, which is reserved for this purpose.
3214 $dbw->insertSelect( 'archive', array( 'page', 'revision' ),
3216 'ar_namespace' => 'page_namespace',
3217 'ar_title' => 'page_title',
3218 'ar_comment' => 'rev_comment',
3219 'ar_user' => 'rev_user',
3220 'ar_user_text' => 'rev_user_text',
3221 'ar_timestamp' => 'rev_timestamp',
3222 'ar_minor_edit' => 'rev_minor_edit',
3223 'ar_rev_id' => 'rev_id',
3224 'ar_text_id' => 'rev_text_id',
3225 'ar_text' => '\'\'', // Be explicit to appease
3226 'ar_flags' => '\'\'', // MySQL's "strict mode"...
3227 'ar_len' => 'rev_len',
3228 'ar_page_id' => 'page_id',
3229 'ar_deleted' => $bitfield
3232 'page_id = rev_page'
3236 # Delete restrictions for it
3237 $dbw->delete( 'page_restrictions', array ( 'pr_page' => $id ), __METHOD__
);
3239 # Now that it's safely backed up, delete it
3240 $dbw->delete( 'page', array( 'page_id' => $id ), __METHOD__
);
3241 $ok = ( $dbw->affectedRows() > 0 ); // getArticleId() uses slave, could be laggy
3248 # Fix category table counts
3250 $res = $dbw->select( 'categorylinks', 'cl_to', array( 'cl_from' => $id ), __METHOD__
);
3252 foreach ( $res as $row ) {
3253 $cats [] = $row->cl_to
;
3256 $this->updateCategoryCounts( array(), $cats );
3258 # If using cascading deletes, we can skip some explicit deletes
3259 if ( !$dbw->cascadingDeletes() ) {
3260 $dbw->delete( 'revision', array( 'rev_page' => $id ), __METHOD__
);
3262 if ( $wgUseTrackbacks )
3263 $dbw->delete( 'trackbacks', array( 'tb_page' => $id ), __METHOD__
);
3265 # Delete outgoing links
3266 $dbw->delete( 'pagelinks', array( 'pl_from' => $id ) );
3267 $dbw->delete( 'imagelinks', array( 'il_from' => $id ) );
3268 $dbw->delete( 'categorylinks', array( 'cl_from' => $id ) );
3269 $dbw->delete( 'templatelinks', array( 'tl_from' => $id ) );
3270 $dbw->delete( 'externallinks', array( 'el_from' => $id ) );
3271 $dbw->delete( 'langlinks', array( 'll_from' => $id ) );
3272 $dbw->delete( 'redirect', array( 'rd_from' => $id ) );
3275 # If using cleanup triggers, we can skip some manual deletes
3276 if ( !$dbw->cleanupTriggers() ) {
3277 # Clean up recentchanges entries...
3278 $dbw->delete( 'recentchanges',
3279 array( 'rc_type != ' . RC_LOG
,
3280 'rc_namespace' => $this->mTitle
->getNamespace(),
3281 'rc_title' => $this->mTitle
->getDBkey() ),
3283 $dbw->delete( 'recentchanges',
3284 array( 'rc_type != ' . RC_LOG
, 'rc_cur_id' => $id ),
3289 Article
::onArticleDelete( $this->mTitle
);
3291 # Clear the cached article id so the interface doesn't act like we exist
3292 $this->mTitle
->resetArticleID( 0 );
3294 # Log the deletion, if the page was suppressed, log it at Oversight instead
3295 $logtype = $suppress ?
'suppress' : 'delete';
3296 $log = new LogPage( $logtype );
3298 # Make sure logging got through
3299 $log->addEntry( 'delete', $this->mTitle
, $reason, array() );
3309 * Roll back the most recent consecutive set of edits to a page
3310 * from the same user; fails if there are no eligible edits to
3311 * roll back to, e.g. user is the sole contributor. This function
3312 * performs permissions checks on $wgUser, then calls commitRollback()
3313 * to do the dirty work
3315 * @param $fromP String: Name of the user whose edits to rollback.
3316 * @param $summary String: Custom summary. Set to default summary if empty.
3317 * @param $token String: Rollback token.
3318 * @param $bot Boolean: If true, mark all reverted edits as bot.
3320 * @param $resultDetails Array: contains result-specific array of additional values
3321 * 'alreadyrolled' : 'current' (rev)
3322 * success : 'summary' (str), 'current' (rev), 'target' (rev)
3324 * @return array of errors, each error formatted as
3325 * array(messagekey, param1, param2, ...).
3326 * On success, the array is empty. This array can also be passed to
3327 * OutputPage::showPermissionsErrorPage().
3329 public function doRollback( $fromP, $summary, $token, $bot, &$resultDetails ) {
3332 $resultDetails = null;
3335 $editErrors = $this->mTitle
->getUserPermissionsErrors( 'edit', $wgUser );
3336 $rollbackErrors = $this->mTitle
->getUserPermissionsErrors( 'rollback', $wgUser );
3337 $errors = array_merge( $editErrors, wfArrayDiff2( $rollbackErrors, $editErrors ) );
3339 if ( !$wgUser->matchEditToken( $token, array( $this->mTitle
->getPrefixedText(), $fromP ) ) ) {
3340 $errors[] = array( 'sessionfailure' );
3343 if ( $wgUser->pingLimiter( 'rollback' ) ||
$wgUser->pingLimiter() ) {
3344 $errors[] = array( 'actionthrottledtext' );
3347 # If there were errors, bail out now
3348 if ( !empty( $errors ) ) {
3352 return $this->commitRollback( $fromP, $summary, $bot, $resultDetails );
3356 * Backend implementation of doRollback(), please refer there for parameter
3357 * and return value documentation
3359 * NOTE: This function does NOT check ANY permissions, it just commits the
3360 * rollback to the DB Therefore, you should only call this function direct-
3361 * ly if you want to use custom permissions checks. If you don't, use
3362 * doRollback() instead.
3364 public function commitRollback( $fromP, $summary, $bot, &$resultDetails ) {
3365 global $wgUseRCPatrol, $wgUser, $wgLang;
3367 $dbw = wfGetDB( DB_MASTER
);
3369 if ( wfReadOnly() ) {
3370 return array( array( 'readonlytext' ) );
3373 # Get the last editor
3374 $current = Revision
::newFromTitle( $this->mTitle
);
3375 if ( is_null( $current ) ) {
3376 # Something wrong... no page?
3377 return array( array( 'notanarticle' ) );
3380 $from = str_replace( '_', ' ', $fromP );
3381 # User name given should match up with the top revision.
3382 # If the user was deleted then $from should be empty.
3383 if ( $from != $current->getUserText() ) {
3384 $resultDetails = array( 'current' => $current );
3385 return array( array( 'alreadyrolled',
3386 htmlspecialchars( $this->mTitle
->getPrefixedText() ),
3387 htmlspecialchars( $fromP ),
3388 htmlspecialchars( $current->getUserText() )
3392 # Get the last edit not by this guy...
3393 # Note: these may not be public values
3394 $user = intval( $current->getRawUser() );
3395 $user_text = $dbw->addQuotes( $current->getRawUserText() );
3396 $s = $dbw->selectRow( 'revision',
3397 array( 'rev_id', 'rev_timestamp', 'rev_deleted' ),
3398 array( 'rev_page' => $current->getPage(),
3399 "rev_user != {$user} OR rev_user_text != {$user_text}"
3401 array( 'USE INDEX' => 'page_timestamp',
3402 'ORDER BY' => 'rev_timestamp DESC' )
3404 if ( $s === false ) {
3405 # No one else ever edited this page
3406 return array( array( 'cantrollback' ) );
3407 } else if ( $s->rev_deleted
& Revision
::DELETED_TEXT ||
$s->rev_deleted
& Revision
::DELETED_USER
) {
3408 # Only admins can see this text
3409 return array( array( 'notvisiblerev' ) );
3413 if ( $bot && $wgUser->isAllowed( 'markbotedits' ) ) {
3414 # Mark all reverted edits as bot
3418 if ( $wgUseRCPatrol ) {
3419 # Mark all reverted edits as patrolled
3420 $set['rc_patrolled'] = 1;
3423 if ( count( $set ) ) {
3424 $dbw->update( 'recentchanges', $set,
3426 'rc_cur_id' => $current->getPage(),
3427 'rc_user_text' => $current->getUserText(),
3428 "rc_timestamp > '{$s->rev_timestamp}'",
3433 # Generate the edit summary if necessary
3434 $target = Revision
::newFromId( $s->rev_id
);
3435 if ( empty( $summary ) ) {
3436 if ( $from == '' ) { // no public user name
3437 $summary = wfMsgForContent( 'revertpage-nouser' );
3439 $summary = wfMsgForContent( 'revertpage' );
3443 # Allow the custom summary to use the same args as the default message
3445 $target->getUserText(), $from, $s->rev_id
,
3446 $wgLang->timeanddate( wfTimestamp( TS_MW
, $s->rev_timestamp
), true ),
3447 $current->getId(), $wgLang->timeanddate( $current->getTimestamp() )
3449 $summary = wfMsgReplaceArgs( $summary, $args );
3452 $flags = EDIT_UPDATE
;
3454 if ( $wgUser->isAllowed( 'minoredit' ) ) {
3455 $flags |
= EDIT_MINOR
;
3458 if ( $bot && ( $wgUser->isAllowed( 'markbotedits' ) ||
$wgUser->isAllowed( 'bot' ) ) ) {
3459 $flags |
= EDIT_FORCE_BOT
;
3462 # Actually store the edit
3463 $status = $this->doEdit( $target->getText(), $summary, $flags, $target->getId() );
3464 if ( !empty( $status->value
['revision'] ) ) {
3465 $revId = $status->value
['revision']->getId();
3470 wfRunHooks( 'ArticleRollbackComplete', array( $this, $wgUser, $target, $current ) );
3472 $resultDetails = array(
3473 'summary' => $summary,
3474 'current' => $current,
3475 'target' => $target,
3483 * User interface for rollback operations
3485 public function rollback() {
3486 global $wgUser, $wgOut, $wgRequest;
3490 $result = $this->doRollback(
3491 $wgRequest->getVal( 'from' ),
3492 $wgRequest->getText( 'summary' ),
3493 $wgRequest->getVal( 'token' ),
3494 $wgRequest->getBool( 'bot' ),
3498 if ( in_array( array( 'actionthrottledtext' ), $result ) ) {
3499 $wgOut->rateLimited();
3503 if ( isset( $result[0][0] ) && ( $result[0][0] == 'alreadyrolled' ||
$result[0][0] == 'cantrollback' ) ) {
3504 $wgOut->setPageTitle( wfMsg( 'rollbackfailed' ) );
3505 $errArray = $result[0];
3506 $errMsg = array_shift( $errArray );
3507 $wgOut->addWikiMsgArray( $errMsg, $errArray );
3509 if ( isset( $details['current'] ) ) {
3510 $current = $details['current'];
3512 if ( $current->getComment() != '' ) {
3513 $wgOut->addWikiMsgArray( 'editcomment', array(
3514 $wgUser->getSkin()->formatComment( $current->getComment() ) ), array( 'replaceafter' ) );
3521 # Display permissions errors before read-only message -- there's no
3522 # point in misleading the user into thinking the inability to rollback
3523 # is only temporary.
3524 if ( !empty( $result ) && $result !== array( array( 'readonlytext' ) ) ) {
3525 # array_diff is completely broken for arrays of arrays, sigh.
3526 # Remove any 'readonlytext' error manually.
3528 foreach ( $result as $error ) {
3529 if ( $error != array( 'readonlytext' ) ) {
3533 $wgOut->showPermissionsErrorPage( $out );
3538 if ( $result == array( array( 'readonlytext' ) ) ) {
3539 $wgOut->readOnlyPage();
3544 $current = $details['current'];
3545 $target = $details['target'];
3546 $newId = $details['newid'];
3547 $wgOut->setPageTitle( wfMsg( 'actioncomplete' ) );
3548 $wgOut->setRobotPolicy( 'noindex,nofollow' );
3550 if ( $current->getUserText() === '' ) {
3551 $old = wfMsg( 'rev-deleted-user' );
3553 $old = $wgUser->getSkin()->userLink( $current->getUser(), $current->getUserText() )
3554 . $wgUser->getSkin()->userToolLinks( $current->getUser(), $current->getUserText() );
3557 $new = $wgUser->getSkin()->userLink( $target->getUser(), $target->getUserText() )
3558 . $wgUser->getSkin()->userToolLinks( $target->getUser(), $target->getUserText() );
3559 $wgOut->addHTML( wfMsgExt( 'rollback-success', array( 'parse', 'replaceafter' ), $old, $new ) );
3560 $wgOut->returnToMain( false, $this->mTitle
);
3562 if ( !$wgRequest->getBool( 'hidediff', false ) && !$wgUser->getBoolOption( 'norollbackdiff', false ) ) {
3563 $de = new DifferenceEngine( $this->mTitle
, $current->getId(), $newId, false, true );
3564 $de->showDiff( '', '' );
3569 * Do standard deferred updates after page view
3571 public function viewUpdates() {
3572 global $wgDeferredUpdateList, $wgDisableCounters, $wgUser;
3573 if ( wfReadOnly() ) {
3577 # Don't update page view counters on views from bot users (bug 14044)
3578 if ( !$wgDisableCounters && !$wgUser->isAllowed( 'bot' ) && $this->getID() ) {
3579 $wgDeferredUpdateList[] = new ViewCountUpdate( $this->getID() );
3580 $wgDeferredUpdateList[] = new SiteStatsUpdate( 1, 0, 0 );
3583 # Update newtalk / watchlist notification status
3584 $wgUser->clearNotification( $this->mTitle
);
3588 * Prepare text which is about to be saved.
3589 * Returns a stdclass with source, pst and output members
3591 public function prepareTextForEdit( $text, $revid = null, User
$user = null ) {
3592 if ( $this->mPreparedEdit
&& $this->mPreparedEdit
->newText
== $text && $this->mPreparedEdit
->revid
== $revid ) {
3594 return $this->mPreparedEdit
;
3599 if( $user === null ) {
3603 $popts = ParserOptions
::newFromUser( $user );
3604 wfRunHooks( 'ArticlePrepareTextForEdit', array( $this, $popts ) );
3606 $edit = (object)array();
3607 $edit->revid
= $revid;
3608 $edit->newText
= $text;
3609 $edit->pst
= $this->preSaveTransform( $text, $user, $popts );
3610 $edit->popts
= $this->getParserOptions( true );
3611 $edit->output
= $wgParser->parse( $edit->pst
, $this->mTitle
, $edit->popts
, true, true, $revid );
3612 $edit->oldText
= $this->getRawText();
3614 $this->mPreparedEdit
= $edit;
3620 * Do standard deferred updates after page edit.
3621 * Update links tables, site stats, search index and message cache.
3622 * Purges pages that include this page if the text was changed here.
3623 * Every 100th edit, prune the recent changes table.
3626 * @param $text String: New text of the article
3627 * @param $summary String: Edit summary
3628 * @param $minoredit Boolean: Minor edit
3629 * @param $timestamp_of_pagechange String timestamp associated with the page change
3630 * @param $newid Integer: rev_id value of the new revision
3631 * @param $changed Boolean: Whether or not the content actually changed
3632 * @param $user User object: User doing the edit
3634 public function editUpdates( $text, $summary, $minoredit, $timestamp_of_pagechange, $newid, $changed = true, User
$user = null ) {
3635 global $wgDeferredUpdateList, $wgUser, $wgEnableParserCache;
3637 wfProfileIn( __METHOD__
);
3640 # Be careful not to double-PST: $text is usually already PST-ed once
3641 if ( !$this->mPreparedEdit ||
$this->mPreparedEdit
->output
->getFlag( 'vary-revision' ) ) {
3642 wfDebug( __METHOD__
. ": No prepared edit or vary-revision is set...\n" );
3643 $editInfo = $this->prepareTextForEdit( $text, $newid, $user );
3645 wfDebug( __METHOD__
. ": No vary-revision, using prepared edit...\n" );
3646 $editInfo = $this->mPreparedEdit
;
3649 # Save it to the parser cache
3650 if ( $wgEnableParserCache ) {
3651 $parserCache = ParserCache
::singleton();
3652 $parserCache->save( $editInfo->output
, $this, $editInfo->popts
);
3655 # Update the links tables
3656 $u = new LinksUpdate( $this->mTitle
, $editInfo->output
);
3659 wfRunHooks( 'ArticleEditUpdates', array( &$this, &$editInfo, $changed ) );
3661 if ( wfRunHooks( 'ArticleEditUpdatesDeleteFromRecentchanges', array( &$this ) ) ) {
3662 if ( 0 == mt_rand( 0, 99 ) ) {
3663 // Flush old entries from the `recentchanges` table; we do this on
3664 // random requests so as to avoid an increase in writes for no good reason
3667 $dbw = wfGetDB( DB_MASTER
);
3668 $cutoff = $dbw->timestamp( time() - $wgRCMaxAge );
3669 $recentchanges = $dbw->tableName( 'recentchanges' );
3670 $sql = "DELETE FROM $recentchanges WHERE rc_timestamp < '{$cutoff}'";
3672 $dbw->query( $sql );
3676 $id = $this->getID();
3677 $title = $this->mTitle
->getPrefixedDBkey();
3678 $shortTitle = $this->mTitle
->getDBkey();
3681 wfProfileOut( __METHOD__
);
3685 $u = new SiteStatsUpdate( 0, 1, $this->mGoodAdjustment
, $this->mTotalAdjustment
);
3686 array_push( $wgDeferredUpdateList, $u );
3687 $u = new SearchUpdate( $id, $title, $text );
3688 array_push( $wgDeferredUpdateList, $u );
3690 # If this is another user's talk page, update newtalk
3691 # Don't do this if $changed = false otherwise some idiot can null-edit a
3692 # load of user talk pages and piss people off, nor if it's a minor edit
3693 # by a properly-flagged bot.
3694 if ( $this->mTitle
->getNamespace() == NS_USER_TALK
&& $shortTitle != $wgUser->getTitleKey() && $changed
3695 && !( $minoredit && $wgUser->isAllowed( 'nominornewtalk' ) )
3697 if ( wfRunHooks( 'ArticleEditUpdateNewTalk', array( &$this ) ) ) {
3698 $other = User
::newFromName( $shortTitle, false );
3700 wfDebug( __METHOD__
. ": invalid username\n" );
3701 } elseif ( User
::isIP( $shortTitle ) ) {
3702 // An anonymous user
3703 $other->setNewtalk( true );
3704 } elseif ( $other->isLoggedIn() ) {
3705 $other->setNewtalk( true );
3707 wfDebug( __METHOD__
. ": don't need to notify a nonexistent user\n" );
3712 if ( $this->mTitle
->getNamespace() == NS_MEDIAWIKI
) {
3713 MessageCache
::singleton()->replace( $shortTitle, $text );
3716 wfProfileOut( __METHOD__
);
3720 * Perform article updates on a special page creation.
3722 * @param $rev Revision object
3724 * @todo This is a shitty interface function. Kill it and replace the
3725 * other shitty functions like editUpdates and such so it's not needed
3728 public function createUpdates( $rev ) {
3729 $this->mGoodAdjustment
= $this->isCountable( $rev->getText() );
3730 $this->mTotalAdjustment
= 1;
3731 $this->editUpdates( $rev->getText(), $rev->getComment(),
3732 $rev->isMinor(), wfTimestamp(), $rev->getId(), true );
3736 * Generate the navigation links when browsing through an article revisions
3737 * It shows the information as:
3738 * Revision as of \<date\>; view current revision
3739 * \<- Previous version | Next Version -\>
3741 * @param $oldid String: revision ID of this article revision
3743 public function setOldSubtitle( $oldid = 0 ) {
3744 global $wgLang, $wgOut, $wgUser, $wgRequest;
3746 if ( !wfRunHooks( 'DisplayOldSubtitle', array( &$this, &$oldid ) ) ) {
3750 $unhide = $wgRequest->getInt( 'unhide' ) == 1;
3752 # Cascade unhide param in links for easy deletion browsing
3753 $extraParams = array();
3754 if ( $wgRequest->getVal( 'unhide' ) ) {
3755 $extraParams['unhide'] = 1;
3758 $revision = Revision
::newFromId( $oldid );
3760 $current = ( $oldid == $this->mLatest
);
3761 $td = $wgLang->timeanddate( $this->mTimestamp
, true );
3762 $tddate = $wgLang->date( $this->mTimestamp
, true );
3763 $tdtime = $wgLang->time( $this->mTimestamp
, true );
3764 $sk = $wgUser->getSkin();
3766 ?
wfMsgHtml( 'currentrevisionlink' )
3769 wfMsgHtml( 'currentrevisionlink' ),
3772 array( 'known', 'noclasses' )
3775 ?
wfMsgHtml( 'diff' )
3778 wfMsgHtml( 'diff' ),
3784 array( 'known', 'noclasses' )
3786 $prev = $this->mTitle
->getPreviousRevisionID( $oldid ) ;
3790 wfMsgHtml( 'previousrevision' ),
3793 'direction' => 'prev',
3796 array( 'known', 'noclasses' )
3798 : wfMsgHtml( 'previousrevision' );
3802 wfMsgHtml( 'diff' ),
3808 array( 'known', 'noclasses' )
3810 : wfMsgHtml( 'diff' );
3811 $nextlink = $current
3812 ?
wfMsgHtml( 'nextrevision' )
3815 wfMsgHtml( 'nextrevision' ),
3818 'direction' => 'next',
3821 array( 'known', 'noclasses' )
3823 $nextdiff = $current
3824 ?
wfMsgHtml( 'diff' )
3827 wfMsgHtml( 'diff' ),
3833 array( 'known', 'noclasses' )
3838 // User can delete revisions or view deleted revisions...
3839 $canHide = $wgUser->isAllowed( 'deleterevision' );
3840 if ( $canHide ||
( $revision->getVisibility() && $wgUser->isAllowed( 'deletedhistory' ) ) ) {
3841 if ( !$revision->userCan( Revision
::DELETED_RESTRICTED
) ) {
3842 $cdel = $sk->revDeleteLinkDisabled( $canHide ); // rev was hidden from Sysops
3845 'type' => 'revision',
3846 'target' => $this->mTitle
->getPrefixedDbkey(),
3849 $cdel = $sk->revDeleteLink( $query, $revision->isDeleted( File
::DELETED_RESTRICTED
), $canHide );
3854 # Show user links if allowed to see them. If hidden, then show them only if requested...
3855 $userlinks = $sk->revUserTools( $revision, !$unhide );
3857 $infomsg = $current && !wfMessage( 'revision-info-current' )->isDisabled()
3858 ?
'revision-info-current'
3861 $r = "\n\t\t\t\t<div id=\"mw-{$infomsg}\">" .
3864 array( 'parseinline', 'replaceafter' ),
3870 $revision->getUser()
3873 "\n\t\t\t\t<div id=\"mw-revision-nav\">" . $cdel . wfMsgExt( 'revision-nav', array( 'escapenoentities', 'parsemag', 'replaceafter' ),
3874 $prevdiff, $prevlink, $lnk, $curdiff, $nextlink, $nextdiff ) . "</div>\n\t\t\t";
3876 $wgOut->setSubtitle( $r );
3880 * This function is called right before saving the wikitext,
3881 * so we can do things like signatures and links-in-context.
3883 * @param $text String article contents
3884 * @param $user User object: user doing the edit, $wgUser will be used if
3886 * @param $popts ParserOptions object: parser options, default options for
3887 * the user loaded if null given
3888 * @return string article contents with altered wikitext markup (signatures
3889 * converted, {{subst:}}, templates, etc.)
3891 public function preSaveTransform( $text, User
$user = null, ParserOptions
$popts = null ) {
3894 if ( $user === null ) {
3899 if ( $popts === null ) {
3900 $popts = ParserOptions
::newFromUser( $user );
3903 return $wgParser->preSaveTransform( $text, $this->mTitle
, $user, $popts );
3906 /* Caching functions */
3909 * checkLastModified returns true if it has taken care of all
3910 * output to the client that is necessary for this request.
3911 * (that is, it has sent a cached version of the page)
3913 * @return boolean true if cached version send, false otherwise
3915 protected function tryFileCache() {
3916 static $called = false;
3919 wfDebug( "Article::tryFileCache(): called twice!?\n" );
3924 if ( $this->isFileCacheable() ) {
3925 $cache = new HTMLFileCache( $this->mTitle
);
3926 if ( $cache->isFileCacheGood( $this->mTouched
) ) {
3927 wfDebug( "Article::tryFileCache(): about to load file\n" );
3928 $cache->loadFromFileCache();
3931 wfDebug( "Article::tryFileCache(): starting buffer\n" );
3932 ob_start( array( &$cache, 'saveToFileCache' ) );
3935 wfDebug( "Article::tryFileCache(): not cacheable\n" );
3942 * Check if the page can be cached
3945 public function isFileCacheable() {
3948 if ( HTMLFileCache
::useFileCache() ) {
3949 $cacheable = $this->getID() && !$this->mRedirectedFrom
&& !$this->mTitle
->isRedirect();
3950 // Extension may have reason to disable file caching on some pages.
3952 $cacheable = wfRunHooks( 'IsFileCacheable', array( &$this ) );
3960 * Loads page_touched and returns a value indicating if it should be used
3961 * @return boolean true if not a redirect
3963 public function checkTouched() {
3964 if ( !$this->mDataLoaded
) {
3965 $this->loadPageData();
3968 return !$this->mIsRedirect
;
3972 * Get the page_touched field
3973 * @return string containing GMT timestamp
3975 public function getTouched() {
3976 if ( !$this->mDataLoaded
) {
3977 $this->loadPageData();
3980 return $this->mTouched
;
3984 * Get the page_latest field
3985 * @return integer rev_id of current revision
3987 public function getLatest() {
3988 if ( !$this->mDataLoaded
) {
3989 $this->loadPageData();
3992 return (int)$this->mLatest
;
3996 * Edit an article without doing all that other stuff
3997 * The article must already exist; link tables etc
3998 * are not updated, caches are not flushed.
4000 * @param $text String: text submitted
4001 * @param $comment String: comment submitted
4002 * @param $minor Boolean: whereas it's a minor modification
4004 public function quickEdit( $text, $comment = '', $minor = 0 ) {
4005 wfProfileIn( __METHOD__
);
4007 $dbw = wfGetDB( DB_MASTER
);
4008 $revision = new Revision( array(
4009 'page' => $this->getId(),
4011 'comment' => $comment,
4012 'minor_edit' => $minor ?
1 : 0,
4014 $revision->insertOn( $dbw );
4015 $this->updateRevisionOn( $dbw, $revision );
4018 wfRunHooks( 'NewRevisionFromEditComplete', array( $this, $revision, false, $wgUser ) );
4020 wfProfileOut( __METHOD__
);
4024 * The onArticle*() functions are supposed to be a kind of hooks
4025 * which should be called whenever any of the specified actions
4028 * This is a good place to put code to clear caches, for instance.
4030 * This is called on page move and undelete, as well as edit
4032 * @param $title Title object
4034 public static function onArticleCreate( $title ) {
4035 # Update existence markers on article/talk tabs...
4036 if ( $title->isTalkPage() ) {
4037 $other = $title->getSubjectPage();
4039 $other = $title->getTalkPage();
4042 $other->invalidateCache();
4043 $other->purgeSquid();
4045 $title->touchLinks();
4046 $title->purgeSquid();
4047 $title->deleteTitleProtection();
4051 * Clears caches when article is deleted
4053 public static function onArticleDelete( $title ) {
4054 # Update existence markers on article/talk tabs...
4055 if ( $title->isTalkPage() ) {
4056 $other = $title->getSubjectPage();
4058 $other = $title->getTalkPage();
4061 $other->invalidateCache();
4062 $other->purgeSquid();
4064 $title->touchLinks();
4065 $title->purgeSquid();
4068 HTMLFileCache
::clearFileCache( $title );
4071 if ( $title->getNamespace() == NS_MEDIAWIKI
) {
4072 MessageCache
::singleton()->replace( $title->getDBkey(), false );
4076 if ( $title->getNamespace() == NS_FILE
) {
4077 $update = new HTMLCacheUpdate( $title, 'imagelinks' );
4078 $update->doUpdate();
4082 if ( $title->getNamespace() == NS_USER_TALK
) {
4083 $user = User
::newFromName( $title->getText(), false );
4084 $user->setNewtalk( false );
4088 RepoGroup
::singleton()->getLocalRepo()->invalidateImageRedirect( $title );
4092 * Purge caches on page update etc
4094 * @param $title Title object
4095 * @todo: verify that $title is always a Title object (and never false or null), add Title hint to parameter $title
4097 public static function onArticleEdit( $title ) {
4098 global $wgDeferredUpdateList;
4100 // Invalidate caches of articles which include this page
4101 $wgDeferredUpdateList[] = new HTMLCacheUpdate( $title, 'templatelinks' );
4103 // Invalidate the caches of all pages which redirect here
4104 $wgDeferredUpdateList[] = new HTMLCacheUpdate( $title, 'redirect' );
4106 # Purge squid for this page only
4107 $title->purgeSquid();
4109 # Clear file cache for this page only
4110 HTMLFileCache
::clearFileCache( $title );
4116 * Overriden by ImagePage class, only present here to avoid a fatal error
4117 * Called for ?action=revert
4119 public function revert() {
4121 $wgOut->showErrorPage( 'nosuchaction', 'nosuchactiontext' );
4125 * Info about this page
4126 * Called for ?action=info when $wgAllowPageInfo is on.
4128 public function info() {
4129 global $wgLang, $wgOut, $wgAllowPageInfo, $wgUser;
4131 if ( !$wgAllowPageInfo ) {
4132 $wgOut->showErrorPage( 'nosuchaction', 'nosuchactiontext' );
4136 $page = $this->mTitle
->getSubjectPage();
4138 $wgOut->setPagetitle( $page->getPrefixedText() );
4139 $wgOut->setPageTitleActionText( wfMsg( 'info_short' ) );
4140 $wgOut->setSubtitle( wfMsgHtml( 'infosubtitle' ) );
4142 if ( !$this->mTitle
->exists() ) {
4143 $wgOut->addHTML( '<div class="noarticletext">' );
4144 if ( $this->mTitle
->getNamespace() == NS_MEDIAWIKI
) {
4145 // This doesn't quite make sense; the user is asking for
4146 // information about the _page_, not the message... -- RC
4147 $wgOut->addHTML( htmlspecialchars( $this->mTitle
->getDefaultMessageText() ) );
4149 $msg = $wgUser->isLoggedIn()
4151 : 'noarticletextanon';
4152 $wgOut->addHTML( wfMsgExt( $msg, 'parse' ) );
4155 $wgOut->addHTML( '</div>' );
4157 $dbr = wfGetDB( DB_SLAVE
);
4159 'wl_title' => $page->getDBkey(),
4160 'wl_namespace' => $page->getNamespace() );
4161 $numwatchers = $dbr->selectField(
4166 $this->getSelectOptions() );
4168 $pageInfo = $this->pageCountInfo( $page );
4169 $talkInfo = $this->pageCountInfo( $page->getTalkPage() );
4172 //FIXME: unescaped messages
4173 $wgOut->addHTML( "<ul><li>" . wfMsg( "numwatchers", $wgLang->formatNum( $numwatchers ) ) . '</li>' );
4174 $wgOut->addHTML( "<li>" . wfMsg( 'numedits', $wgLang->formatNum( $pageInfo['edits'] ) ) . '</li>' );
4177 $wgOut->addHTML( '<li>' . wfMsg( "numtalkedits", $wgLang->formatNum( $talkInfo['edits'] ) ) . '</li>' );
4180 $wgOut->addHTML( '<li>' . wfMsg( "numauthors", $wgLang->formatNum( $pageInfo['authors'] ) ) . '</li>' );
4183 $wgOut->addHTML( '<li>' . wfMsg( 'numtalkauthors', $wgLang->formatNum( $talkInfo['authors'] ) ) . '</li>' );
4186 $wgOut->addHTML( '</ul>' );
4191 * Return the total number of edits and number of unique editors
4192 * on a given page. If page does not exist, returns false.
4194 * @param $title Title object
4195 * @return mixed array or boolean false
4197 public function pageCountInfo( $title ) {
4198 $id = $title->getArticleId();
4204 $dbr = wfGetDB( DB_SLAVE
);
4205 $rev_clause = array( 'rev_page' => $id );
4206 $edits = $dbr->selectField(
4211 $this->getSelectOptions()
4213 $authors = $dbr->selectField(
4215 'COUNT(DISTINCT rev_user_text)',
4218 $this->getSelectOptions()
4221 return array( 'edits' => $edits, 'authors' => $authors );
4225 * Return a list of templates used by this article.
4226 * Uses the templatelinks table
4228 * @return Array of Title objects
4230 public function getUsedTemplates() {
4232 $id = $this->mTitle
->getArticleID();
4238 $dbr = wfGetDB( DB_SLAVE
);
4239 $res = $dbr->select( array( 'templatelinks' ),
4240 array( 'tl_namespace', 'tl_title' ),
4241 array( 'tl_from' => $id ),
4244 if ( $res !== false ) {
4245 foreach ( $res as $row ) {
4246 $result[] = Title
::makeTitle( $row->tl_namespace
, $row->tl_title
);
4254 * Returns a list of hidden categories this page is a member of.
4255 * Uses the page_props and categorylinks tables.
4257 * @return Array of Title objects
4259 public function getHiddenCategories() {
4261 $id = $this->mTitle
->getArticleID();
4267 $dbr = wfGetDB( DB_SLAVE
);
4268 $res = $dbr->select( array( 'categorylinks', 'page_props', 'page' ),
4270 array( 'cl_from' => $id, 'pp_page=page_id', 'pp_propname' => 'hiddencat',
4271 'page_namespace' => NS_CATEGORY
, 'page_title=cl_to' ),
4274 if ( $res !== false ) {
4275 foreach ( $res as $row ) {
4276 $result[] = Title
::makeTitle( NS_CATEGORY
, $row->cl_to
);
4284 * Return an applicable autosummary if one exists for the given edit.
4285 * @param $oldtext String: the previous text of the page.
4286 * @param $newtext String: The submitted text of the page.
4287 * @param $flags Int bitmask: a bitmask of flags submitted for the edit.
4288 * @return string An appropriate autosummary, or an empty string.
4290 public static function getAutosummary( $oldtext, $newtext, $flags ) {
4293 # Decide what kind of autosummary is needed.
4295 # Redirect autosummaries
4296 $ot = Title
::newFromRedirect( $oldtext );
4297 $rt = Title
::newFromRedirect( $newtext );
4299 if ( is_object( $rt ) && ( !is_object( $ot ) ||
!$rt->equals( $ot ) ||
$ot->getFragment() != $rt->getFragment() ) ) {
4300 return wfMsgForContent( 'autoredircomment', $rt->getFullText() );
4303 # New page autosummaries
4304 if ( $flags & EDIT_NEW
&& strlen( $newtext ) ) {
4305 # If they're making a new article, give its text, truncated, in the summary.
4307 $truncatedtext = $wgContLang->truncate(
4308 str_replace( "\n", ' ', $newtext ),
4309 max( 0, 200 - strlen( wfMsgForContent( 'autosumm-new' ) ) ) );
4311 return wfMsgForContent( 'autosumm-new', $truncatedtext );
4314 # Blanking autosummaries
4315 if ( $oldtext != '' && $newtext == '' ) {
4316 return wfMsgForContent( 'autosumm-blank' );
4317 } elseif ( strlen( $oldtext ) > 10 * strlen( $newtext ) && strlen( $newtext ) < 500 ) {
4318 # Removing more than 90% of the article
4320 $truncatedtext = $wgContLang->truncate(
4322 max( 0, 200 - strlen( wfMsgForContent( 'autosumm-replace' ) ) ) );
4324 return wfMsgForContent( 'autosumm-replace', $truncatedtext );
4327 # If we reach this point, there's no applicable autosummary for our case, so our
4328 # autosummary is empty.
4333 * Add the primary page-view wikitext to the output buffer
4334 * Saves the text into the parser cache if possible.
4335 * Updates templatelinks if it is out of date.
4337 * @param $text String
4338 * @param $cache Boolean
4339 * @param $parserOptions mixed ParserOptions object, or boolean false
4341 public function outputWikiText( $text, $cache = true, $parserOptions = false ) {
4344 $this->mParserOutput
= $this->getOutputFromWikitext( $text, $cache, $parserOptions );
4345 $wgOut->addParserOutput( $this->mParserOutput
);
4349 * This does all the heavy lifting for outputWikitext, except it returns the parser
4350 * output instead of sending it straight to $wgOut. Makes things nice and simple for,
4351 * say, embedding thread pages within a discussion system (LiquidThreads)
4353 * @param $text string
4354 * @param $cache boolean
4355 * @param $parserOptions parsing options, defaults to false
4356 * @return string containing parsed output
4358 public function getOutputFromWikitext( $text, $cache = true, $parserOptions = false ) {
4359 global $wgParser, $wgEnableParserCache, $wgUseFileCache;
4361 if ( !$parserOptions ) {
4362 $parserOptions = $this->getParserOptions();
4366 $this->mParserOutput
= $wgParser->parse( $text, $this->mTitle
,
4367 $parserOptions, true, true, $this->getRevIdFetched() );
4372 wfDebugLog( 'slow-parse', sprintf( "%-5.2f %s", $time,
4373 $this->mTitle
->getPrefixedDBkey() ) );
4376 if ( $wgEnableParserCache && $cache && $this->mParserOutput
->isCacheable() ) {
4377 $parserCache = ParserCache
::singleton();
4378 $parserCache->save( $this->mParserOutput
, $this, $parserOptions );
4381 // Make sure file cache is not used on uncacheable content.
4382 // Output that has magic words in it can still use the parser cache
4383 // (if enabled), though it will generally expire sooner.
4384 if ( !$this->mParserOutput
->isCacheable() ||
$this->mParserOutput
->containsOldMagic() ) {
4385 $wgUseFileCache = false;
4388 $this->doCascadeProtectionUpdates( $this->mParserOutput
);
4390 return $this->mParserOutput
;
4394 * Get parser options suitable for rendering the primary article wikitext
4395 * @param $canonical boolean Determines that the generated must not depend on user preferences (see bug 14404)
4396 * @return mixed ParserOptions object or boolean false
4398 public function getParserOptions( $canonical = false ) {
4399 global $wgUser, $wgLanguageCode;
4401 if ( !$this->mParserOptions ||
$canonical ) {
4402 $user = !$canonical ?
$wgUser : new User
;
4403 $parserOptions = new ParserOptions( $user );
4404 $parserOptions->setTidy( true );
4405 $parserOptions->enableLimitReport();
4408 $parserOptions->setUserLang( $wgLanguageCode ); # Must be set explicitely
4409 return $parserOptions;
4411 $this->mParserOptions
= $parserOptions;
4414 // Clone to allow modifications of the return value without affecting
4416 return clone $this->mParserOptions
;
4420 * Updates cascading protections
4422 * @param $parserOutput mixed ParserOptions object, or boolean false
4424 protected function doCascadeProtectionUpdates( $parserOutput ) {
4425 if ( !$this->isCurrent() ||
wfReadOnly() ||
!$this->mTitle
->areRestrictionsCascading() ) {
4429 // templatelinks table may have become out of sync,
4430 // especially if using variable-based transclusions.
4431 // For paranoia, check if things have changed and if
4432 // so apply updates to the database. This will ensure
4433 // that cascaded protections apply as soon as the changes
4436 # Get templates from templatelinks
4437 $id = $this->mTitle
->getArticleID();
4439 $tlTemplates = array();
4441 $dbr = wfGetDB( DB_SLAVE
);
4442 $res = $dbr->select( array( 'templatelinks' ),
4443 array( 'tl_namespace', 'tl_title' ),
4444 array( 'tl_from' => $id ),
4448 foreach ( $res as $row ) {
4449 $tlTemplates["{$row->tl_namespace}:{$row->tl_title}"] = true;
4452 # Get templates from parser output.
4453 $poTemplates = array();
4454 foreach ( $parserOutput->getTemplates() as $ns => $templates ) {
4455 foreach ( $templates as $dbk => $id ) {
4456 $poTemplates["$ns:$dbk"] = true;
4461 $templates_diff = array_diff_key( $poTemplates, $tlTemplates );
4463 if ( count( $templates_diff ) > 0 ) {
4464 # Whee, link updates time.
4465 $u = new LinksUpdate( $this->mTitle
, $parserOutput, false );
4471 * Update all the appropriate counts in the category table, given that
4472 * we've added the categories $added and deleted the categories $deleted.
4474 * @param $added array The names of categories that were added
4475 * @param $deleted array The names of categories that were deleted
4477 public function updateCategoryCounts( $added, $deleted ) {
4478 $ns = $this->mTitle
->getNamespace();
4479 $dbw = wfGetDB( DB_MASTER
);
4481 # First make sure the rows exist. If one of the "deleted" ones didn't
4482 # exist, we might legitimately not create it, but it's simpler to just
4483 # create it and then give it a negative value, since the value is bogus
4486 # Sometimes I wish we had INSERT ... ON DUPLICATE KEY UPDATE.
4487 $insertCats = array_merge( $added, $deleted );
4488 if ( !$insertCats ) {
4489 # Okay, nothing to do
4493 $insertRows = array();
4495 foreach ( $insertCats as $cat ) {
4496 $insertRows[] = array(
4497 'cat_id' => $dbw->nextSequenceValue( 'category_cat_id_seq' ),
4501 $dbw->insert( 'category', $insertRows, __METHOD__
, 'IGNORE' );
4503 $addFields = array( 'cat_pages = cat_pages + 1' );
4504 $removeFields = array( 'cat_pages = cat_pages - 1' );
4506 if ( $ns == NS_CATEGORY
) {
4507 $addFields[] = 'cat_subcats = cat_subcats + 1';
4508 $removeFields[] = 'cat_subcats = cat_subcats - 1';
4509 } elseif ( $ns == NS_FILE
) {
4510 $addFields[] = 'cat_files = cat_files + 1';
4511 $removeFields[] = 'cat_files = cat_files - 1';
4518 array( 'cat_title' => $added ),
4527 array( 'cat_title' => $deleted ),
4534 * Lightweight method to get the parser output for a page, checking the parser cache
4535 * and so on. Doesn't consider most of the stuff that Article::view is forced to
4536 * consider, so it's not appropriate to use there.
4538 * @since 1.16 (r52326) for LiquidThreads
4540 * @param $oldid mixed integer Revision ID or null
4541 * @return ParserOutput
4543 public function getParserOutput( $oldid = null ) {
4544 global $wgEnableParserCache, $wgUser;
4546 // Should the parser cache be used?
4547 $useParserCache = $wgEnableParserCache &&
4548 $wgUser->getStubThreshold() == 0 &&
4552 wfDebug( __METHOD__
. ': using parser cache: ' . ( $useParserCache ?
'yes' : 'no' ) . "\n" );
4554 if ( $wgUser->getStubThreshold() ) {
4555 wfIncrStats( 'pcache_miss_stub' );
4558 $parserOutput = false;
4559 if ( $useParserCache ) {
4560 $parserOutput = ParserCache
::singleton()->get( $this, $this->getParserOptions() );
4563 if ( $parserOutput === false ) {
4564 // Cache miss; parse and output it.
4565 $rev = Revision
::newFromTitle( $this->getTitle(), $oldid );
4567 return $this->getOutputFromWikitext( $rev->getText(), $useParserCache );
4569 return $parserOutput;
4575 class PoolWorkArticleView
extends PoolCounterWork
{
4578 function __construct( $article, $key, $useParserCache, $parserOptions ) {
4579 parent
::__construct( 'ArticleView', $key );
4580 $this->mArticle
= $article;
4581 $this->cacheable
= $useParserCache;
4582 $this->parserOptions
= $parserOptions;
4586 return $this->mArticle
->doViewParse();
4589 function getCachedWork() {
4592 $parserCache = ParserCache
::singleton();
4593 $this->mArticle
->mParserOutput
= $parserCache->get( $this->mArticle
, $this->parserOptions
);
4595 if ( $this->mArticle
->mParserOutput
!== false ) {
4596 wfDebug( __METHOD__
. ": showing contents parsed by someone else\n" );
4597 $wgOut->addParserOutput( $this->mArticle
->mParserOutput
);
4598 # Ensure that UI elements requiring revision ID have
4599 # the correct version information.
4600 $wgOut->setRevisionId( $this->mArticle
->getLatest() );
4606 function fallback() {
4607 return $this->mArticle
->tryDirtyCache();
4610 function error( $status ) {
4613 $wgOut->clearHTML(); // for release() errors
4614 $wgOut->enableClientCache( false );
4615 $wgOut->setRobotPolicy( 'noindex,nofollow' );
4617 $errortext = $status->getWikiText( false, 'view-pool-error' );
4618 $wgOut->addWikiText( '<div class="errorbox">' . $errortext . '</div>' );