8 * Need the CacheManager to be loaded
10 require_once( 'CacheManager.php' );
11 require_once( 'Revision.php' );
13 $wgArticleCurContentFields = false;
14 $wgArticleOldContentFields = false;
17 * Class representing a Wikipedia article and history.
19 * See design.doc for an overview.
20 * Note: edit user interface and cache support functions have been
21 * moved to separate EditPage and CacheManager classes.
29 var $mContent, $mContentLoaded;
30 var $mUser, $mTimestamp, $mUserText;
31 var $mCounter, $mComment, $mCountAdjustment;
32 var $mMinorEdit, $mRedirectedFrom;
33 var $mTouched, $mFileCache, $mTitle;
40 * Constructor and clear the article
41 * @param mixed &$title
43 function Article( &$title ) {
44 $this->mTitle
=& $title;
49 * get the title object of the article
61 $this->mContentLoaded
= false;
62 $this->mCurID
= $this->mUser
= $this->mCounter
= -1; # Not loaded
63 $this->mRedirectedFrom
= $this->mUserText
=
64 $this->mTimestamp
= $this->mComment
= $this->mFileCache
= '';
65 $this->mCountAdjustment
= 0;
66 $this->mTouched
= '19700101000000';
67 $this->mForUpdate
= false;
71 * Note that getContent/loadContent may follow redirects if
72 * not told otherwise, and so may cause a change to mTitle.
75 * @return Return the text of this revision
77 function getContent( $noredir ) {
80 # Get variables from query string :P
81 $action = $wgRequest->getText( 'action', 'view' );
82 $section = $wgRequest->getText( 'section' );
84 $fname = 'Article::getContent';
85 wfProfileIn( $fname );
87 if ( 0 == $this->getID() ) {
88 if ( 'edit' == $action ) {
89 wfProfileOut( $fname );
90 return ''; # was "newarticletext", now moved above the box)
92 wfProfileOut( $fname );
93 return wfMsg( 'noarticletext' );
95 $this->loadContent( $noredir );
96 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
97 if ( $this->mTitle
->getNamespace() == NS_USER_TALK
&&
98 preg_match('/^\d{1,3}\.\d{1,3}.\d{1,3}\.\d{1,3}$/',$this->mTitle
->getText()) &&
101 wfProfileOut( $fname );
102 return $this->mContent
. "\n" .wfMsg('anontalkpagetext');
104 if($action=='edit') {
106 if($section=='new') {
107 wfProfileOut( $fname );
111 # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
112 # comments to be stripped as well)
113 $rv=$this->getSection($this->mContent
,$section);
114 wfProfileOut( $fname );
118 wfProfileOut( $fname );
119 return $this->mContent
;
125 * This function returns the text of a section, specified by a number ($section).
126 * A section is text under a heading like == Heading == or <h1>Heading</h1>, or
127 * the first section before any such heading (section 0).
129 * If a section contains subsections, these are also returned.
131 * @param string $text text to look in
132 * @param integer $section section number
133 * @return string text of the requested section
135 function getSection($text,$section) {
137 # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
138 # comments to be stripped as well)
140 $parser=new Parser();
141 $parser->mOutputType
=OT_WIKI
;
142 $striptext=$parser->strip($text, $striparray, true);
144 # now that we can be sure that no pseudo-sections are in the source,
145 # split it up by section
148 '/(^=+.+?=+|^<h[1-6].*?' . '>.*?<\/h[1-6].*?' . '>)(?!\S)/mi',
150 PREG_SPLIT_DELIM_CAPTURE
);
154 $headline=$secs[$section*2-1];
155 preg_match( '/^(=+).+?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>(?!\S)/mi',$headline,$matches);
158 # translate wiki heading into level
159 if(strpos($hlevel,'=')!==false) {
160 $hlevel=strlen($hlevel);
163 $rv=$headline. $secs[$section*2];
167 while(!empty($secs[$count*2-1]) && !$break) {
169 $subheadline=$secs[$count*2-1];
170 preg_match( '/^(=+).+?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>(?!\S)/mi',$subheadline,$matches);
171 $subhlevel=$matches[1];
172 if(strpos($subhlevel,'=')!==false) {
173 $subhlevel=strlen($subhlevel);
175 if($subhlevel > $hlevel) {
176 $rv.=$subheadline.$secs[$count*2];
178 if($subhlevel <= $hlevel) {
185 # reinsert stripped tags
186 $rv=$parser->unstrip($rv,$striparray);
187 $rv=$parser->unstripNoWiki($rv,$striparray);
194 * Return an array of the columns of the "cur"-table
196 function getContentFields() {
197 return $wgArticleContentFields = array(
198 'old_text','old_flags',
199 'rev_timestamp','rev_user', 'rev_user_text', 'rev_comment','page_counter',
200 'page_namespace', 'page_title', 'page_restrictions','page_touched','page_is_redirect' );
204 * Return the oldid of the article that is to be shown.
205 * For requests with a "direction", this is not the oldid of the
208 function getOldID() {
209 global $wgRequest, $wgOut;
212 if ( isset( $lastid ) ) {
216 $oldid = $wgRequest->getVal( 'oldid' );
217 if ( isset( $oldid ) ) {
218 $oldid = IntVal( $oldid );
219 if ( $wgRequest->getVal( 'direction' ) == 'next' ) {
220 $nextid = $this->mTitle
->getNextRevisionID( $oldid );
224 $wgOut->redirect( $this->mTitle
->getFullURL( 'redirect=no' ) );
226 } elseif ( $wgRequest->getVal( 'direction' ) == 'prev' ) {
227 $previd = $this->mTitle
->getPreviousRevisionID( $oldid );
236 return @$oldid; # "@" to be able to return "unset" without PHP complaining
241 * Load the revision (including cur_text) into this object
243 function loadContent( $noredir = false ) {
244 global $wgOut, $wgRequest;
246 if ( $this->mContentLoaded
) return;
249 $oldid = $this->getOldID();
250 $redirect = $wgRequest->getVal( 'redirect' );
252 $fname = 'Article::loadContent';
254 # Pre-fill content with error message so that if something
255 # fails we'll have something telling us what we intended.
257 $t = $this->mTitle
->getPrefixedText();
259 $noredir = $noredir ||
($wgRequest->getVal( 'redirect' ) == 'no');
260 $this->mOldId
= $oldid;
261 $this->fetchContent( $oldid, $noredir, true );
265 * Get text of an article from database
266 * @param int $oldid 0 for whatever the latest revision is
267 * @param bool $noredir Set to true to avoid following redirects
268 * @param bool $globalTitle Set to true to change the global $wgTitle object when following redirects or other unexpected title changes
271 function fetchContent( $oldid = 0, $noredir = false, $globalTitle = false ) {
272 if ( $this->mContentLoaded
) {
273 return $this->mContent
;
275 $dbr =& $this->getDB();
276 $fname = 'Article::fetchContent';
278 # Pre-fill content with error message so that if something
279 # fails we'll have something telling us what we intended.
280 $t = $this->mTitle
->getPrefixedText();
282 $t .= ',oldid='.$oldid;
284 if( isset( $redirect ) ) {
285 $redirect = ($redirect == 'no') ?
'no' : 'yes';
286 $t .= ',redirect='.$redirect;
288 $this->mContent
= wfMsg( 'missingarticle', $t );
291 # Retrieve current version
292 $id = $this->getID();
297 $s = $dbr->selectRow( array( 'text', 'revision', 'page' ),
298 $this->getContentFields(),
299 "page_id='$id' AND rev_page=page_id AND rev_id=page_latest AND old_id=rev_id",
300 $fname, $this->getSelectOptions() );
302 # Historical revision
303 $s = $dbr->selectRow( array( 'text', 'revision', 'page' ),
304 $this->getContentFields(),
305 "rev_page=page_id AND rev_id='$oldid' AND old_id=rev_id",
306 $fname, $this->getSelectOptions() );
308 if ( $s === false ) {
312 # If we got a redirect, follow it (unless we've been told
313 # not to by either the function parameter or the query
314 if ( !$oldid && !$noredir ) {
315 $rt = Title
::newFromRedirect( Revision
::getRevisionText( $s ) );
316 # process if title object is valid and not special:userlogout
317 if ( $rt && ! ( $rt->getNamespace() == NS_SPECIAL
&& $rt->getText() == 'Userlogout' ) ) {
318 # Gotta hand redirects to special pages differently:
319 # Fill the HTTP response "Location" header and ignore
320 # the rest of the page we're on.
323 if ( $rt->getInterwiki() != '' ) {
324 $wgOut->redirect( $rt->getFullURL() ) ;
327 if ( $rt->getNamespace() == NS_SPECIAL
) {
328 $wgOut->redirect( $rt->getFullURL() );
332 $rid = $rt->getArticleID();
334 $redirRow = $dbr->selectRow( array( 'text', 'revision', 'page' ),
335 $this->getContentFields(),
336 "page_id='$rid' AND rev_page=page_id AND rev_id=page_latest AND old_id=rev_id",
337 $fname, $this->getSelectOptions() );
339 if ( $redirRow !== false ) {
340 $this->mRedirectedFrom
= $this->mTitle
->getPrefixedText();
348 # if the title's different from expected, update...
350 ( $this->mTitle
->getNamespace() != $s->page_namespace ||
351 $this->mTitle
->getDBkey() != $s->page_title
) ) {
352 $oldTitle = Title
::makeTitle( $s->page_namesapce
, $s->page_title
);
353 $this->mTitle
= $oldTitle;
355 $wgTitle = $oldTitle;
358 # Back to the business at hand...
359 $this->mCounter
= $s->page_counter
;
360 $this->mTitle
->mRestrictions
= explode( ',', trim( $s->page_restrictions
) );
361 $this->mTitle
->mRestrictionsLoaded
= true;
362 $this->mTouched
= wfTimestamp( TS_MW
, $s->page_touched
);
364 $this->mContent
= Revision
::getRevisionText( $s );
366 $this->mUser
= $s->rev_user
;
367 $this->mUserText
= $s->rev_user_text
;
368 $this->mComment
= $s->rev_comment
;
369 $this->mTimestamp
= wfTimestamp( TS_MW
, $s->rev_timestamp
);
371 $this->mContentLoaded
= true;
372 return $this->mContent
;
376 * Gets the article text without using so many damn globals
377 * Returns false on error
379 * @param integer $oldid
381 function getContentWithoutUsingSoManyDamnGlobals( $oldid = 0, $noredir = false ) {
382 return $this->fetchContent( $oldid, $noredir, false );
386 * Read/write accessor to select FOR UPDATE
388 function forUpdate( $x = NULL ) {
389 return wfSetVar( $this->mForUpdate
, $x );
393 * Get the database which should be used for reads
396 if ( $this->mForUpdate
) {
397 return wfGetDB( DB_MASTER
);
399 return wfGetDB( DB_SLAVE
);
404 * Get options for all SELECT statements
405 * Can pass an option array, to which the class-wide options will be appended
407 function getSelectOptions( $options = '' ) {
408 if ( $this->mForUpdate
) {
409 if ( is_array( $options ) ) {
410 $options[] = 'FOR UPDATE';
412 $options = 'FOR UPDATE';
419 * Return the Article ID
422 if( $this->mTitle
) {
423 return $this->mTitle
->getArticleID();
430 * Get the view count for this article
432 function getCount() {
433 if ( -1 == $this->mCounter
) {
434 $id = $this->getID();
435 $dbr =& $this->getDB();
436 $this->mCounter
= $dbr->selectField( 'page', 'page_counter', array( 'page_id' => $id ),
437 'Article::getCount', $this->getSelectOptions() );
439 return $this->mCounter
;
443 * Would the given text make this article a "good" article (i.e.,
444 * suitable for including in the article count)?
445 * @param string $text Text to analyze
446 * @return integer 1 if it can be counted else 0
448 function isCountable( $text ) {
449 global $wgUseCommaCount;
451 if ( NS_MAIN
!= $this->mTitle
->getNamespace() ) { return 0; }
452 if ( $this->isRedirect( $text ) ) { return 0; }
453 $token = ($wgUseCommaCount ?
',' : '[[' );
454 if ( false === strstr( $text, $token ) ) { return 0; }
459 * Tests if the article text represents a redirect
461 function isRedirect( $text = false ) {
462 if ( $text === false ) {
463 $this->loadContent();
464 $titleObj = Title
::newFromRedirect( $this->mText
);
466 $titleObj = Title
::newFromRedirect( $text );
468 return $titleObj !== NULL;
472 * Loads everything except the text
473 * This isn't necessary for all uses, so it's only done if needed.
476 function loadLastEdit() {
479 if ( -1 != $this->mUser
)
482 # New or non-existent articles have no user information
483 $id = $this->getID();
484 if ( 0 == $id ) return;
486 $fname = 'Article::loadLastEdit';
488 $dbr =& $this->getDB();
489 $s = $dbr->selectRow( array( 'revision', 'page') ,
490 array( 'rev_user','rev_user_text','rev_timestamp', 'rev_comment','rev_minor_edit' ),
491 array( 'page_id' => $id, 'page_latest=rev_id' ), $fname, $this->getSelectOptions() );
493 if ( $s !== false ) {
494 $this->mUser
= $s->rev_user
;
495 $this->mUserText
= $s->rev_user_text
;
496 $this->mTimestamp
= wfTimestamp(TS_MW
,$s->rev_timestamp
);
497 $this->mComment
= $s->rev_comment
;
498 $this->mMinorEdit
= $s->rev_minor_edit
;
502 function getTimestamp() {
503 $this->loadLastEdit();
504 return $this->mTimestamp
;
508 $this->loadLastEdit();
512 function getUserText() {
513 $this->loadLastEdit();
514 return $this->mUserText
;
517 function getComment() {
518 $this->loadLastEdit();
519 return $this->mComment
;
522 function getMinorEdit() {
523 $this->loadLastEdit();
524 return $this->mMinorEdit
;
527 function getContributors($limit = 0, $offset = 0) {
528 $fname = 'Article::getContributors';
530 # XXX: this is expensive; cache this info somewhere.
532 $title = $this->mTitle
;
534 $dbr =& $this->getDB();
535 $revTable = $dbr->tableName( 'revision' );
536 $userTable = $dbr->tableName( 'user' );
537 $encDBkey = $dbr->addQuotes( $title->getDBkey() );
538 $ns = $title->getNamespace();
539 $user = $this->getUser();
540 $pageId = $this->getId();
542 $sql = "SELECT rev_user, rev_user_text, user_real_name, MAX(rev_timestamp) as timestamp
543 FROM $revTable LEFT JOIN $userTable ON rev_user = user_id
544 WHERE rev_page = $pageId
545 AND rev_user != $user
546 GROUP BY rev_user, rev_user_text, user_real_name
547 ORDER BY timestamp DESC";
549 if ($limit > 0) { $sql .= ' LIMIT '.$limit; }
550 $sql .= ' '. $this->getSelectOptions();
552 $res = $dbr->query($sql, $fname);
554 while ( $line = $dbr->fetchObject( $res ) ) {
555 $contribs[] = array($line->rev_user
, $line->rev_user_text
, $line->user_real_name
);
558 $dbr->freeResult($res);
563 * This is the default action of the script: just view the page of
567 global $wgUser, $wgOut, $wgRequest, $wgOnlySysopsCanPatrol, $wgLang;
568 global $wgLinkCache, $IP, $wgEnableParserCache, $wgStylePath, $wgUseRCPatrol;
570 $sk = $wgUser->getSkin();
572 $fname = 'Article::view';
573 wfProfileIn( $fname );
574 # Get variables from query string
575 $oldid = $this->getOldID();
576 $diff = $wgRequest->getVal( 'diff' );
577 $rcid = $wgRequest->getVal( 'rcid' );
579 $wgOut->setArticleFlag( true );
580 $wgOut->setRobotpolicy( 'index,follow' );
581 # If we got diff and oldid in the query, we want to see a
582 # diff page instead of the article.
584 if ( !is_null( $diff ) ) {
585 require_once( 'DifferenceEngine.php' );
586 $wgOut->setPageTitle( $this->mTitle
->getPrefixedText() );
587 $de = new DifferenceEngine( $oldid, $diff, $rcid );
590 # Run view updates for current revision only
591 $this->viewUpdates();
593 wfProfileOut( $fname );
596 if ( empty( $oldid ) && $this->checkTouched() ) {
597 if( $wgOut->checkLastModified( $this->mTouched
) ){
598 wfProfileOut( $fname );
600 } else if ( $this->tryFileCache() ) {
601 # tell wgOut that output is taken care of
603 $this->viewUpdates();
604 wfProfileOut( $fname );
608 # Should the parser cache be used?
609 if ( $wgEnableParserCache && intval($wgUser->getOption( 'stubthreshold' )) == 0 && empty( $oldid ) ) {
617 if ( $wgOut->tryParserCache( $this, $wgUser ) ) {
621 if ( !$outputDone ) {
622 $text = $this->getContent( false ); # May change mTitle by following a redirect
624 # Another whitelist check in case oldid or redirects are altering the title
625 if ( !$this->mTitle
->userCanRead() ) {
626 $wgOut->loginToUse();
632 # We're looking at an old revision
634 if ( !empty( $oldid ) ) {
635 $this->setOldSubtitle( isset($this->mOldId
) ?
$this->mOldId
: $oldid );
636 $wgOut->setRobotpolicy( 'noindex,follow' );
638 if ( '' != $this->mRedirectedFrom
) {
639 $sk = $wgUser->getSkin();
640 $redir = $sk->makeKnownLink( $this->mRedirectedFrom
, '',
642 $s = wfMsg( 'redirectedfrom', $redir );
643 $wgOut->setSubtitle( $s );
645 # Can't cache redirects
649 # wrap user css and user js in pre and don't parse
650 # XXX: use $this->mTitle->usCssJsSubpage() when php is fixed/ a workaround is found
652 $this->mTitle
->getNamespace() == NS_USER
&&
653 preg_match('/\\/[\\w]+\\.(css|js)$/', $this->mTitle
->getDBkey())
655 $wgOut->addWikiText( wfMsg('clearyourcache'));
656 $wgOut->addHTML( '<pre>'.htmlspecialchars($this->mContent
)."\n</pre>" );
657 } else if ( $rt = Title
::newFromRedirect( $text ) ) {
659 $imageUrl = $wgStylePath.'/common/images/redirect.png';
660 $targetUrl = $rt->escapeLocalURL();
661 $titleText = htmlspecialchars( $rt->getPrefixedText() );
662 $link = $sk->makeLinkObj( $rt );
664 $wgOut->addHTML( '<img valign="center" src="'.$imageUrl.'" alt="#REDIRECT" />' .
665 '<span class="redirectText">'.$link.'</span>' );
667 } else if ( $pcache ) {
668 # Display content and save to parser cache
669 $wgOut->addPrimaryWikiText( $text, $this );
671 # Display content, don't attempt to save to parser cache
672 $wgOut->addWikiText( $text );
675 $wgOut->setPageTitle( $this->mTitle
->getPrefixedText() );
676 # If we have been passed an &rcid= parameter, we want to give the user a
677 # chance to mark this new article as patrolled.
678 if ( $wgUseRCPatrol && !is_null ( $rcid ) && $rcid != 0 && $wgUser->getID() != 0 &&
679 ( $wgUser->isAllowed('patrol') ||
!$wgOnlySysopsCanPatrol ) )
681 $wgOut->addHTML( wfMsg ( 'markaspatrolledlink',
682 $sk->makeKnownLinkObj ( $this->mTitle
, wfMsg ( 'markaspatrolledtext' ),
683 'action=markpatrolled&rcid='.$rcid )
687 # Put link titles into the link cache
688 $wgOut->transformBuffer();
690 # Add link titles as META keywords
691 $wgOut->addMetaTags() ;
693 $this->viewUpdates();
694 wfProfileOut( $fname );
696 $wgUser->clearNotification( $this->mTitle
);
700 * Theoretically we could defer these whole insert and update
701 * functions for after display, but that's taking a big leap
702 * of faith, and we want to be able to report database
703 * errors at some point.
706 function insertNewArticle( $text, $summary, $isminor, $watchthis ) {
707 global $wgOut, $wgUser;
708 global $wgUseSquid, $wgDeferredUpdateList, $wgInternalServer;
710 $fname = 'Article::insertNewArticle';
712 $this->mCountAdjustment
= $this->isCountable( $text );
714 $ns = $this->mTitle
->getNamespace();
715 $ttl = $this->mTitle
->getDBkey();
716 $text = $this->preSaveTransform( $text );
717 if ( $this->isRedirect( $text ) ) { $redir = 1; }
720 $now = wfTimestampNow();
721 $won = wfInvertTimestamp( $now );
724 $isminor = ( $isminor && $wgUser->getID() ) ?
1 : 0;
727 $flags = Revision
::compressRevisionText( $mungedText );
729 $dbw =& wfGetDB( DB_MASTER
);
731 $old_id = $dbw->nextSequenceValue( 'text_old_id_seq' );
732 $dbw->insert( 'text', array(
734 'old_text' => $mungedText,
735 'old_flags' => $flags,
737 $revisionId = $dbw->insertId();
739 $page_id = $dbw->nextSequenceValue( 'page_page_id_seq' );
740 $dbw->insert( 'page', array(
741 'page_id' => $page_id,
742 'page_namespace' => $ns,
743 'page_title' => $ttl,
745 'page_restrictions' => '',
746 'page_is_redirect' => $redir,
748 'page_random' => $rand,
749 'page_touched' => $dbw->timestamp($now),
750 'page_latest' => $revisionId,
752 $newid = $dbw->insertId();
754 $dbw->insert( 'revision', array(
755 'rev_page' => $newid,
756 'rev_id' => $revisionId,
757 'rev_comment' => $summary,
758 'rev_user' => $wgUser->getID(),
759 'rev_timestamp' => $dbw->timestamp($now),
760 'rev_minor_edit' => $isminor,
761 'rev_user_text' => $wgUser->getName(),
762 'inverse_timestamp' => $won,
765 $this->mTitle
->resetArticleID( $newid );
767 Article
::onArticleCreate( $this->mTitle
);
768 RecentChange
::notifyNew( $now, $this->mTitle
, $isminor, $wgUser, $summary );
771 if(!$this->mTitle
->userIsWatching()) $this->watch();
773 if ( $this->mTitle
->userIsWatching() ) {
778 # The talk page isn't in the regular link tables, so we need to update manually:
779 $talkns = $ns ^
1; # talk -> normal; normal -> talk
780 $dbw->update( 'page',
781 array( 'page_touched' => $dbw->timestamp($now) ),
782 array( 'page_namespace' => $talkns,
783 'page_title' => $ttl ),
786 # standard deferred updates
787 $this->editUpdates( $text, $summary, $isminor, $now );
789 $oldid = 0; # new article
790 $this->showArticle( $text, wfMsg( 'newarticle' ), false, $isminor, $now, $summary, $oldid );
794 * Fetch and uncompress the text for a given revision.
795 * Can ask by rev_id number or timestamp (set $field)
797 function fetchRevisionText( $revId = null, $field = 'rev_id' ) {
798 $fname = 'Article::fetchRevisionText';
799 $dbw =& wfGetDB( DB_MASTER
);
801 $rev = $dbw->addQuotes( $revId );
803 $rev = 'page_latest';
805 $result = $dbw->query(
806 sprintf( "SELECT old_text, old_flags
808 WHERE old_id=rev_id AND rev_page=page_id AND page_id=%d
810 $dbw->tableName( 'page' ),
811 $dbw->tableName( 'revision' ),
812 $dbw->tableName( 'text' ),
813 IntVal( $this->mTitle
->getArticleId() ),
817 $obj = $dbw->fetchObject( $result );
818 $dbw->freeResult( $result );
819 $oldtext = Revision
::getRevisionText( $obj );
823 function getTextOfLastEditWithSectionReplacedOrAdded($section, $text, $summary = '', $edittime = NULL) {
824 $fname = 'Article::getTextOfLastEditWithSectionReplacedOrAdded';
825 if( is_null( $edittime ) ) {
826 $oldtext = $this->fetchRevisionText();
828 $oldtext = $this->fetchRevisionText( $edittime, 'rev_timestamp' );
830 if ($section != '') {
831 if($section=='new') {
832 if($summary) $subject="== {$summary} ==\n\n";
833 $text=$oldtext."\n\n".$subject.$text;
836 # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
837 # comments to be stripped as well)
839 $parser=new Parser();
840 $parser->mOutputType
=OT_WIKI
;
841 $oldtext=$parser->strip($oldtext, $striparray, true);
843 # now that we can be sure that no pseudo-sections are in the source,
845 # Unfortunately we can't simply do a preg_replace because that might
846 # replace the wrong section, so we have to use the section counter instead
847 $secs=preg_split('/(^=+.+?=+|^<h[1-6].*?' . '>.*?<\/h[1-6].*?' . '>)(?!\S)/mi',
848 $oldtext,-1,PREG_SPLIT_DELIM_CAPTURE
);
849 $secs[$section*2]=$text."\n\n"; // replace with edited
851 # section 0 is top (intro) section
854 # headline of old section - we need to go through this section
855 # to determine if there are any subsections that now need to
856 # be erased, as the mother section has been replaced with
857 # the text of all subsections.
858 $headline=$secs[$section*2-1];
859 preg_match( '/^(=+).+?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>(?!\S)/mi',$headline,$matches);
862 # determine headline level for wikimarkup headings
863 if(strpos($hlevel,'=')!==false) {
864 $hlevel=strlen($hlevel);
867 $secs[$section*2-1]=''; // erase old headline
870 while(!empty($secs[$count*2-1]) && !$break) {
872 $subheadline=$secs[$count*2-1];
874 '/^(=+).+?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>(?!\S)/mi',$subheadline,$matches);
875 $subhlevel=$matches[1];
876 if(strpos($subhlevel,'=')!==false) {
877 $subhlevel=strlen($subhlevel);
879 if($subhlevel > $hlevel) {
880 // erase old subsections
881 $secs[$count*2-1]='';
884 if($subhlevel <= $hlevel) {
892 $text=join('',$secs);
893 # reinsert the stuff that we stripped out earlier
894 $text=$parser->unstrip($text,$striparray);
895 $text=$parser->unstripNoWiki($text,$striparray);
903 * Change an existing article. Puts the previous version back into the old table, updates RC
904 * and all necessary caches, mostly via the deferred update array.
906 * It is possible to call this function from a command-line script, but note that you should
907 * first set $wgUser, and clean up $wgDeferredUpdates after each edit.
909 function updateArticle( $text, $summary, $minor, $watchthis, $forceBot = false, $sectionanchor = '' ) {
910 global $wgOut, $wgUser;
911 global $wgDBtransactions, $wgMwRedir;
912 global $wgUseSquid, $wgInternalServer;
914 $fname = 'Article::updateArticle';
917 if ( $this->mMinorEdit
) { $me1 = 1; } else { $me1 = 0; }
918 if ( $minor && $wgUser->getID() ) { $me2 = 1; } else { $me2 = 0; }
919 if ( $this->isRedirect( $text ) ) {
920 # Remove all content but redirect
921 # This could be done by reconstructing the redirect from a title given by
922 # Title::newFromRedirect(), but then we wouldn't know which synonym the user
924 if ( preg_match( "/^((" . $wgMwRedir->getBaseRegex() . ')[^\\n]+)/i', $text, $m ) ) {
926 $text = $m[1] . "\n";
931 $text = $this->preSaveTransform( $text );
932 $dbw =& wfGetDB( DB_MASTER
);
934 # Update article, but only if changed.
936 # It's important that we either rollback or complete, otherwise an attacker could
937 # overwrite cur entries by sending precisely timed user aborts. Random bored users
938 # could conceivably have the same effect, especially if cur is locked for long periods.
939 if( $wgDBtransactions ) {
940 $dbw->query( 'BEGIN', $fname );
942 $userAbort = ignore_user_abort( true );
945 $oldtext = $this->getContent( true );
947 if ( 0 != strcmp( $text, $oldtext ) ) {
948 $this->mCountAdjustment
= $this->isCountable( $text )
949 - $this->isCountable( $oldtext );
950 $now = wfTimestampNow();
951 $won = wfInvertTimestamp( $now );
954 $flags = Revision
::compressRevisionText( $mungedText );
956 $lastRevision = $dbw->selectField(
957 'page', 'page_latest', array( 'page_id' => $this->getId() ) );
959 # Record the text to the text table
960 $old_id = $dbw->nextSequenceValue( 'text_old_id_val' );
961 $dbw->insert( 'text',
964 'old_text' => $mungedText,
965 'old_flags' => $flags,
968 $revisionId = $dbw->insertId();
970 # Record the edit in revisions
971 $dbw->insert( 'revision',
973 'rev_id' => $revisionId,
974 'rev_page' => $this->getID(),
975 'rev_comment' => $summary,
976 'rev_minor_edit' => $me2,
977 'rev_user' => $wgUser->getID(),
978 'rev_user_text' => $wgUser->getName(),
979 'rev_timestamp' => $dbw->timestamp( $now ),
980 'inverse_timestamp' => $won
985 $dbw->update( 'page',
987 'page_latest' => $revisionId,
988 'page_touched' => $dbw->timestamp( $now ),
990 'page_is_redirect' => $redir,
991 ), array( /* WHERE */
992 'page_id' => $this->getID(),
993 'page_latest' => $lastRevision, # Paranoia
997 if( $dbw->affectedRows() == 0 ) {
998 /* Belated edit conflict! Run away!! */
1001 # Update recentchanges and purge cache and whatnot
1002 $bot = (int)($wgUser->isBot() ||
$forceBot);
1003 RecentChange
::notifyEdit( $now, $this->mTitle
, $me2, $wgUser, $summary,
1004 $lastRevision, $this->getTimestamp(), $bot );
1005 Article
::onArticleEdit( $this->mTitle
);
1009 if( $wgDBtransactions ) {
1010 $dbw->query( 'COMMIT', $fname );
1012 ignore_user_abort( $userAbort );
1017 if (!$this->mTitle
->userIsWatching()) $this->watch();
1019 if ( $this->mTitle
->userIsWatching() ) {
1023 # standard deferred updates
1024 $this->editUpdates( $text, $summary, $minor, $now );
1028 # Template namespace
1029 # Purge all articles linking here
1030 if ( $this->mTitle
->getNamespace() == NS_TEMPLATE
) {
1031 $titles = $this->mTitle
->getLinksTo();
1032 Title
::touchArray( $titles );
1033 if ( $wgUseSquid ) {
1034 foreach ( $titles as $title ) {
1035 $urls[] = $title->getInternalURL();
1041 if ( $wgUseSquid ) {
1042 $urls = array_merge( $urls, $this->mTitle
->getSquidURLs() );
1043 $u = new SquidUpdate( $urls );
1047 $this->showArticle( $text, wfMsg( 'updated' ), $sectionanchor, $me2, $now, $summary, $lastRevision );
1053 * After we've either updated or inserted the article, update
1054 * the link tables and redirect to the new page.
1056 function showArticle( $text, $subtitle , $sectionanchor = '', $me2, $now, $summary, $oldid ) {
1057 global $wgOut, $wgUser, $wgLinkCache, $wgEnotif;
1059 $wgLinkCache = new LinkCache();
1061 $wgLinkCache->forUpdate( true );
1063 # Get old version of link table to allow incremental link updates
1064 $wgLinkCache->preFill( $this->mTitle
);
1065 $wgLinkCache->clear();
1067 # Parse the text and replace links with placeholders
1068 $wgOut = new OutputPage();
1069 $wgOut->addWikiText( $text );
1071 # Look up the links in the DB and add them to the link cache
1072 $wgOut->transformBuffer( RLH_FOR_UPDATE
);
1074 if( $this->isRedirect( $text ) )
1078 $wgOut->redirect( $this->mTitle
->getFullURL( $r ).$sectionanchor );
1080 # this call would better fit into RecentChange::notifyEdit and RecentChange::notifyNew .
1081 # this will be improved later (to-do)
1083 include_once( "UserMailer.php" );
1084 $wgEnotif = new EmailNotification ();
1085 $wgEnotif->NotifyOnPageChange( $wgUser->getID(), $this->mTitle
->getDBkey(), $this->mTitle
->getNamespace(),$now, $summary, $me2, $oldid );
1089 * Mark this particular edit as patrolled
1091 function markpatrolled() {
1092 global $wgOut, $wgRequest, $wgOnlySysopsCanPatrol, $wgUseRCPatrol, $wgUser;
1093 $wgOut->setRobotpolicy( 'noindex,follow' );
1095 if ( !$wgUseRCPatrol )
1097 $wgOut->errorpage( 'rcpatroldisabled', 'rcpatroldisabledtext' );
1100 if ( $wgUser->getID() == 0 )
1102 $wgOut->loginToUse();
1105 if ( $wgOnlySysopsCanPatrol && !$wgUser->isAllowed('patrol') )
1107 $wgOut->sysopRequired();
1110 $rcid = $wgRequest->getVal( 'rcid' );
1111 if ( !is_null ( $rcid ) )
1113 RecentChange
::markPatrolled( $rcid );
1114 $wgOut->setPagetitle( wfMsg( 'markedaspatrolled' ) );
1115 $wgOut->addWikiText( wfMsg( 'markedaspatrolledtext' ) );
1117 $rcTitle = Title
::makeTitle( NS_SPECIAL
, 'Recentchanges' );
1118 $wgOut->returnToMain( false, $rcTitle->getPrefixedText() );
1122 $wgOut->errorpage( 'markedaspatrollederror', 'markedaspatrollederrortext' );
1128 * Add this page to $wgUser's watchlist
1133 global $wgUser, $wgOut;
1135 if ( 0 == $wgUser->getID() ) {
1136 $wgOut->errorpage( 'watchnologin', 'watchnologintext' );
1139 if ( wfReadOnly() ) {
1140 $wgOut->readOnlyPage();
1144 if (wfRunHooks('WatchArticle', $wgUser, $this)) {
1146 $wgUser->addWatch( $this->mTitle
);
1147 $wgUser->saveSettings();
1149 wfRunHooks('WatchArticleComplete', $wgUser, $this);
1151 $wgOut->setPagetitle( wfMsg( 'addedwatch' ) );
1152 $wgOut->setRobotpolicy( 'noindex,follow' );
1154 $link = $this->mTitle
->getPrefixedText();
1155 $text = wfMsg( 'addedwatchtext', $link );
1156 $wgOut->addWikiText( $text );
1159 $wgOut->returnToMain( true, $this->mTitle
->getPrefixedText() );
1163 * Stop watching a page
1166 function unwatch() {
1168 global $wgUser, $wgOut;
1170 if ( 0 == $wgUser->getID() ) {
1171 $wgOut->errorpage( 'watchnologin', 'watchnologintext' );
1174 if ( wfReadOnly() ) {
1175 $wgOut->readOnlyPage();
1179 if (wfRunHooks('UnwatchArticle', $wgUser, $this)) {
1181 $wgUser->removeWatch( $this->mTitle
);
1182 $wgUser->saveSettings();
1184 wfRunHooks('UnwatchArticleComplete', $wgUser, $this);
1186 $wgOut->setPagetitle( wfMsg( 'removedwatch' ) );
1187 $wgOut->setRobotpolicy( 'noindex,follow' );
1189 $link = $this->mTitle
->getPrefixedText();
1190 $text = wfMsg( 'removedwatchtext', $link );
1191 $wgOut->addWikiText( $text );
1194 $wgOut->returnToMain( true, $this->mTitle
->getPrefixedText() );
1200 function protect( $limit = 'sysop' ) {
1201 global $wgUser, $wgOut, $wgRequest;
1203 if ( ! $wgUser->isAllowed('protect') ) {
1204 $wgOut->sysopRequired();
1207 if ( wfReadOnly() ) {
1208 $wgOut->readOnlyPage();
1211 $id = $this->mTitle
->getArticleID();
1213 $wgOut->fatalError( wfMsg( 'badarticleerror' ) );
1217 $confirm = $wgRequest->getBool( 'wpConfirmProtect' ) && $wgRequest->wasPosted();
1218 $moveonly = $wgRequest->getBool( 'wpMoveOnly' );
1219 $reason = $wgRequest->getText( 'wpReasonProtect' );
1222 $dbw =& wfGetDB( DB_MASTER
);
1223 $dbw->update( 'page',
1225 'page_touched' => $dbw->timestamp(),
1226 'page_restrictions' => (string)$limit
1227 ), array( /* WHERE */
1229 ), 'Article::protect'
1232 $restrictions = "move=" . $limit;
1234 $restrictions .= ":edit=" . $limit;
1236 if (wfRunHooks('ArticleProtect', $this, $wgUser, $limit == 'sysop', $reason, $moveonly)) {
1238 $dbw =& wfGetDB( DB_MASTER
);
1239 $dbw->update( 'page',
1241 'page_touched' => $dbw->timestamp(),
1242 'page_restrictions' => $restrictions
1243 ), array( /* WHERE */
1245 ), 'Article::protect'
1248 wfRunHooks('ArticleProtectComplete', $this, $wgUser, $limit == 'sysop', $reason, $moveonly);
1250 $log = new LogPage( 'protect' );
1251 if ( $limit === '' ) {
1252 $log->addEntry( 'unprotect', $this->mTitle
, $reason );
1254 $log->addEntry( 'protect', $this->mTitle
, $reason );
1256 $wgOut->redirect( $this->mTitle
->getFullURL() );
1260 $reason = htmlspecialchars( wfMsg( 'protectreason' ) );
1261 return $this->confirmProtect( '', $reason, $limit );
1266 * Output protection confirmation dialog
1268 function confirmProtect( $par, $reason, $limit = 'sysop' ) {
1271 wfDebug( "Article::confirmProtect\n" );
1273 $sub = htmlspecialchars( $this->mTitle
->getPrefixedText() );
1274 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1280 if ( $limit === '' ) {
1281 $wgOut->setPageTitle( wfMsg( 'confirmunprotect' ) );
1282 $wgOut->setSubtitle( wfMsg( 'unprotectsub', $sub ) );
1283 $wgOut->addWikiText( wfMsg( 'confirmunprotecttext' ) );
1284 $check = htmlspecialchars( wfMsg( 'confirmunprotect' ) );
1285 $protcom = htmlspecialchars( wfMsg( 'unprotectcomment' ) );
1286 $formaction = $this->mTitle
->escapeLocalURL( 'action=unprotect' . $par );
1288 $wgOut->setPageTitle( wfMsg( 'confirmprotect' ) );
1289 $wgOut->setSubtitle( wfMsg( 'protectsub', $sub ) );
1290 $wgOut->addWikiText( wfMsg( 'confirmprotecttext' ) );
1291 $check = htmlspecialchars( wfMsg( 'confirmprotect' ) );
1292 $moveonly = htmlspecialchars( wfMsg( 'protectmoveonly' ) );
1293 $protcom = htmlspecialchars( wfMsg( 'protectcomment' ) );
1294 $formaction = $this->mTitle
->escapeLocalURL( 'action=protect' . $par );
1297 $confirm = htmlspecialchars( wfMsg( 'confirm' ) );
1300 <form id='protectconfirm' method='post' action=\"{$formaction}\">
1304 <label for='wpReasonProtect'>{$protcom}:</label>
1307 <input type='text' size='60' name='wpReasonProtect' id='wpReasonProtect' value=\"" . htmlspecialchars( $reason ) . "\" />
1315 <input type='checkbox' name='wpConfirmProtect' value='1' id='wpConfirmProtect' />
1318 <label for='wpConfirmProtect'>{$check}</label>
1321 if($moveonly != '') {
1325 <input type='checkbox' name='wpMoveOnly' value='1' id='wpMoveOnly' />
1328 <label for='wpMoveOnly'>{$moveonly}</label>
1336 <input type='submit' name='wpConfirmProtectB' value=\"{$confirm}\" />
1342 $wgOut->returnToMain( false );
1346 * Unprotect the pages
1348 function unprotect() {
1349 return $this->protect( '' );
1353 * UI entry point for page deletion
1356 global $wgUser, $wgOut, $wgMessageCache, $wgRequest;
1357 $fname = 'Article::delete';
1358 $confirm = $wgRequest->getBool( 'wpConfirm' ) && $wgRequest->wasPosted();
1359 $reason = $wgRequest->getText( 'wpReason' );
1361 # This code desperately needs to be totally rewritten
1364 if ( ( ! $wgUser->isAllowed('delete') ) ) {
1365 $wgOut->sysopRequired();
1368 if ( wfReadOnly() ) {
1369 $wgOut->readOnlyPage();
1373 # Better double-check that it hasn't been deleted yet!
1374 $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
1375 if ( ( '' == trim( $this->mTitle
->getText() ) )
1376 or ( $this->mTitle
->getArticleId() == 0 ) ) {
1377 $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
1382 $this->doDelete( $reason );
1386 # determine whether this page has earlier revisions
1387 # and insert a warning if it does
1388 # we select the text because it might be useful below
1389 $dbr =& $this->getDB();
1390 $ns = $this->mTitle
->getNamespace();
1391 $title = $this->mTitle
->getDBkey();
1392 $revisions = $dbr->select( array( 'page', 'revision' ),
1395 'page_namespace' => $ns,
1396 'page_title' => $title,
1397 'rev_page = page_id'
1398 ), $fname, $this->getSelectOptions( array( 'ORDER BY' => 'inverse_timestamp' ) )
1401 if( $dbr->numRows( $revisions ) > 1 && !$confirm ) {
1402 $skin=$wgUser->getSkin();
1403 $wgOut->addHTML('<b>'.wfMsg('historywarning'));
1404 $wgOut->addHTML( $skin->historyLink() .'</b>');
1408 $s = $dbr->selectRow( array( 'page', 'text' ),
1409 array( 'old_text' ),
1411 'page_namespace' => $ns,
1412 'page_title' => $title,
1413 'page_latest = old_id'
1414 ), $fname, $this->getSelectOptions()
1417 if( $s !== false ) {
1418 # if this is a mini-text, we can paste part of it into the deletion reason
1420 #if this is empty, an earlier revision may contain "useful" text
1422 if($s->old_text
!= '') {
1426 $text = Revision
::getRevisionText( $old );
1432 $length=strlen($text);
1434 # this should not happen, since it is not possible to store an empty, new
1435 # page. Let's insert a standard text in case it does, though
1436 if($length == 0 && $reason === '') {
1437 $reason = wfMsg('exblank');
1440 if($length < 500 && $reason === '') {
1442 # comment field=255, let's grep the first 150 to have some user
1444 $text=substr($text,0,150);
1445 # let's strip out newlines and HTML tags
1446 $text=preg_replace('/\"/',"'",$text);
1447 $text=preg_replace('/\</','<',$text);
1448 $text=preg_replace('/\>/','>',$text);
1449 $text=preg_replace("/[\n\r]/",'',$text);
1451 $reason=wfMsg('excontent'). " '".$text;
1453 $reason=wfMsg('exbeforeblank') . " '".$text;
1455 if($length>150) { $reason .= '...'; } # we've only pasted part of the text
1460 return $this->confirmDelete( '', $reason );
1464 * Output deletion confirmation dialog
1466 function confirmDelete( $par, $reason ) {
1469 wfDebug( "Article::confirmDelete\n" );
1471 $sub = htmlspecialchars( $this->mTitle
->getPrefixedText() );
1472 $wgOut->setSubtitle( wfMsg( 'deletesub', $sub ) );
1473 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1474 $wgOut->addWikiText( wfMsg( 'confirmdeletetext' ) );
1476 $formaction = $this->mTitle
->escapeLocalURL( 'action=delete' . $par );
1478 $confirm = htmlspecialchars( wfMsg( 'confirm' ) );
1479 $check = htmlspecialchars( wfMsg( 'confirmcheck' ) );
1480 $delcom = htmlspecialchars( wfMsg( 'deletecomment' ) );
1483 <form id='deleteconfirm' method='post' action=\"{$formaction}\">
1487 <label for='wpReason'>{$delcom}:</label>
1490 <input type='text' size='60' name='wpReason' id='wpReason' value=\"" . htmlspecialchars( $reason ) . "\" />
1498 <input type='checkbox' name='wpConfirm' value='1' id='wpConfirm' />
1501 <label for='wpConfirm'>{$check}</label>
1507 <input type='submit' name='wpConfirmB' value=\"{$confirm}\" />
1513 $wgOut->returnToMain( false );
1518 * Perform a deletion and output success or failure messages
1520 function doDelete( $reason ) {
1521 global $wgOut, $wgUser, $wgContLang;
1522 $fname = 'Article::doDelete';
1523 wfDebug( $fname."\n" );
1525 if (wfRunHooks('ArticleDelete', $this, $wgUser, $reason)) {
1526 if ( $this->doDeleteArticle( $reason ) ) {
1527 $deleted = $this->mTitle
->getPrefixedText();
1529 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
1530 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1532 $sk = $wgUser->getSkin();
1533 $loglink = $sk->makeKnownLink( $wgContLang->getNsText( NS_PROJECT
) .
1534 ':' . wfMsgForContent( 'dellogpage' ),
1535 wfMsg( 'deletionlog' ) );
1537 $text = wfMsg( 'deletedtext', $deleted, $loglink );
1539 $wgOut->addHTML( '<p>' . $text . "</p>\n" );
1540 $wgOut->returnToMain( false );
1541 wfRunHooks('ArticleDeleteComplete', $this, $wgUser, $reason);
1543 $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
1549 * Back-end article deletion
1550 * Deletes the article with database consistency, writes logs, purges caches
1553 function doDeleteArticle( $reason ) {
1555 global $wgUseSquid, $wgDeferredUpdateList, $wgInternalServer;
1557 $fname = 'Article::doDeleteArticle';
1558 wfDebug( $fname."\n" );
1560 $dbw =& wfGetDB( DB_MASTER
);
1561 $ns = $this->mTitle
->getNamespace();
1562 $t = $this->mTitle
->getDBkey();
1563 $id = $this->mTitle
->getArticleID();
1565 if ( $t == '' ||
$id == 0 ) {
1569 $u = new SiteStatsUpdate( 0, 1, -$this->isCountable( $this->getContent( true ) ) );
1570 array_push( $wgDeferredUpdateList, $u );
1572 $linksTo = $this->mTitle
->getLinksTo();
1575 if ( $wgUseSquid ) {
1577 $this->mTitle
->getInternalURL(),
1578 $this->mTitle
->getInternalURL( 'history' )
1580 foreach ( $linksTo as $linkTo ) {
1581 $urls[] = $linkTo->getInternalURL();
1584 $u = new SquidUpdate( $urls );
1585 array_push( $wgDeferredUpdateList, $u );
1589 # Client and file cache invalidation
1590 Title
::touchArray( $linksTo );
1592 # Move article and history to the "archive" table
1594 $dbw->insertSelect( 'archive', array( 'page','revision', 'text' ),
1596 'ar_namespace' => 'page_namespace',
1597 'ar_title' => 'page_title',
1598 'ar_text' => 'old_text',
1599 'ar_comment' => 'rev_comment',
1600 'ar_user' => 'rev_user',
1601 'ar_user_text' => 'rev_user_text',
1602 'ar_timestamp' => 'rev_timestamp',
1603 'ar_minor_edit' => 'rev_minor_edit',
1606 'page_namespace' => $ns,
1608 'page_id = rev_page AND old_id = rev_id'
1612 # Now that it's safely backed up, delete it
1614 $dbw->deleteJoin( 'text', 'revision', 'old_id', 'rev_id', array( "rev_page = {$id}" ), $fname );
1615 $dbw->delete( 'revision', array( 'rev_page' => $id ), $fname );
1616 $dbw->delete( 'page', array( 'page_id' => $id ), $fname);
1618 $dbw->delete( 'recentchanges', array( 'rc_namespace' => $ns, 'rc_title' => $t ), $fname );
1620 # Finally, clean up the link tables
1621 $t = $this->mTitle
->getPrefixedDBkey();
1623 Article
::onArticleDelete( $this->mTitle
);
1625 # Insert broken links
1626 $brokenLinks = array();
1627 foreach ( $linksTo as $titleObj ) {
1628 # Get article ID. Efficient because it was loaded into the cache by getLinksTo().
1629 $linkID = $titleObj->getArticleID();
1630 $brokenLinks[] = array( 'bl_from' => $linkID, 'bl_to' => $t );
1632 $dbw->insert( 'brokenlinks', $brokenLinks, $fname, 'IGNORE' );
1635 $dbw->delete( 'links', array( 'l_to' => $id ) );
1636 $dbw->delete( 'links', array( 'l_from' => $id ) );
1637 $dbw->delete( 'imagelinks', array( 'il_from' => $id ) );
1638 $dbw->delete( 'brokenlinks', array( 'bl_from' => $id ) );
1639 $dbw->delete( 'categorylinks', array( 'cl_from' => $id ) );
1642 $log = new LogPage( 'delete' );
1643 $log->addEntry( 'delete', $this->mTitle
, $reason );
1645 # Clear the cached article id so the interface doesn't act like we exist
1646 $this->mTitle
->resetArticleID( 0 );
1647 $this->mTitle
->mArticleID
= 0;
1652 * Revert a modification
1654 function rollback() {
1655 global $wgUser, $wgOut, $wgRequest;
1656 $fname = 'Article::rollback';
1658 if ( ! $wgUser->isAllowed('rollback') ) {
1659 $wgOut->sysopRequired();
1662 if ( wfReadOnly() ) {
1663 $wgOut->readOnlyPage( $this->getContent( true ) );
1666 $dbw =& wfGetDB( DB_MASTER
);
1668 # Enhanced rollback, marks edits rc_bot=1
1669 $bot = $wgRequest->getBool( 'bot' );
1671 # Replace all this user's current edits with the next one down
1672 $tt = $this->mTitle
->getDBKey();
1673 $n = $this->mTitle
->getNamespace();
1675 # Get the last editor, lock table exclusively
1676 $s = $dbw->selectRow( array( 'page', 'revision' ),
1677 array( 'page_id','rev_user','rev_user_text','rev_comment' ),
1678 array( 'page_title' => $tt, 'page_namespace' => $n ),
1679 $fname, 'FOR UPDATE'
1681 if( $s === false ) {
1683 $wgOut->addHTML( wfMsg( 'notanarticle' ) );
1686 $ut = $dbw->strencode( $s->cur_user_text
);
1687 $uid = $s->rev_user
;
1690 $from = str_replace( '_', ' ', $wgRequest->getVal( 'from' ) );
1691 if( $from != $s->rev_user_text
) {
1692 $wgOut->setPageTitle(wfmsg('rollbackfailed'));
1693 $wgOut->addWikiText( wfMsg( 'alreadyrolled',
1694 htmlspecialchars( $this->mTitle
->getPrefixedText()),
1695 htmlspecialchars( $from ),
1696 htmlspecialchars( $s->rev_user_text
) ) );
1697 if($s->rev_comment
!= '') {
1699 wfMsg('editcomment',
1700 htmlspecialchars( $s->rev_comment
) ) );
1705 # Get the last edit not by this guy
1706 $s = $dbw->selectRow( 'old',
1707 array( 'old_text','old_user','old_user_text','old_timestamp','old_flags' ),
1709 'old_namespace' => $n,
1711 "old_user <> {$uid} OR old_user_text <> '{$ut}'"
1712 ), $fname, array( 'FOR UPDATE', 'USE INDEX' => 'name_title_timestamp' )
1714 if( $s === false ) {
1716 $wgOut->setPageTitle(wfMsg('rollbackfailed'));
1717 $wgOut->addHTML( wfMsg( 'cantrollback' ) );
1722 # Mark all reverted edits as bot
1723 $dbw->update( 'recentchanges',
1726 ), array( /* WHERE */
1728 "rc_timestamp > '{$s->old_timestamp}'",
1734 $newcomment = wfMsg( 'revertpage', $s->old_user_text
, $from );
1735 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
1736 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1737 $wgOut->addHTML( '<h2>' . htmlspecialchars( $newcomment ) . "</h2>\n<hr />\n" );
1738 $this->updateArticle( Revision
::getRevisionText( $s ), $newcomment, 1, $this->mTitle
->userIsWatching(), $bot );
1739 Article
::onArticleEdit( $this->mTitle
);
1740 $wgOut->returnToMain( false );
1745 * Do standard deferred updates after page view
1748 function viewUpdates() {
1749 global $wgDeferredUpdateList;
1751 if ( 0 != $this->getID() ) {
1752 global $wgDisableCounters;
1753 if( !$wgDisableCounters ) {
1754 Article
::incViewCount( $this->getID() );
1755 $u = new SiteStatsUpdate( 1, 0, 0 );
1756 array_push( $wgDeferredUpdateList, $u );
1760 # Update newtalk status if user is reading their own
1764 if ($this->mTitle
->getNamespace() == NS_USER_TALK
&&
1765 $this->mTitle
->getText() == $wgUser->getName()) {
1766 require_once( 'UserTalkUpdate.php' );
1767 $u = new UserTalkUpdate( 0, $this->mTitle
->getNamespace(), $this->mTitle
->getDBkey(), false, false, false );
1772 * Do standard deferred updates after page edit.
1773 * Every 1000th edit, prune the recent changes table.
1775 * @param string $text
1777 function editUpdates( $text, $summary, $minoredit, $timestamp_of_pagechange) {
1778 global $wgDeferredUpdateList, $wgDBname, $wgMemc;
1779 global $wgMessageCache, $wgUser;
1782 if ( 0 == mt_rand( 0, 999 ) ) {
1783 # Periodically flush old entries from the recentchanges table.
1785 $dbw =& wfGetDB( DB_MASTER
);
1786 $cutoff = $dbw->timestamp( time() - $wgRCMaxAge );
1787 $recentchanges = $dbw->tableName( 'recentchanges' );
1788 $sql = "DELETE FROM $recentchanges WHERE rc_timestamp < '{$cutoff}'";
1789 $dbw->query( $sql );
1791 $id = $this->getID();
1792 $title = $this->mTitle
->getPrefixedDBkey();
1793 $shortTitle = $this->mTitle
->getDBkey();
1795 $adj = $this->mCountAdjustment
;
1798 $u = new LinksUpdate( $id, $title );
1799 array_push( $wgDeferredUpdateList, $u );
1800 $u = new SiteStatsUpdate( 0, 1, $adj );
1801 array_push( $wgDeferredUpdateList, $u );
1802 $u = new SearchUpdate( $id, $title, $text );
1803 array_push( $wgDeferredUpdateList, $u );
1805 # If this is another user's talk page,
1806 # create a watchlist entry for this page
1808 if ($this->mTitle
->getNamespace() == NS_USER_TALK
&&
1809 $shortTitle != $wgUser->getName()) {
1810 require_once( 'UserTalkUpdate.php' );
1811 $u = new UserTalkUpdate( 1, $this->mTitle
->getNamespace(), $shortTitle, $summary, $minoredit, $timestamp_of_pagechange);
1814 if ( $this->mTitle
->getNamespace() == NS_MEDIAWIKI
) {
1815 $wgMessageCache->replace( $shortTitle, $text );
1821 * @todo document this function
1823 * @param string $oldid Revision ID of this article revision
1825 function setOldSubtitle( $oldid=0 ) {
1826 global $wgLang, $wgOut, $wgUser;
1828 $td = $wgLang->timeanddate( $this->mTimestamp
, true );
1829 $sk = $wgUser->getSkin();
1830 $lnk = $sk->makeKnownLinkObj ( $this->mTitle
, wfMsg( 'currentrevisionlink' ) );
1831 $prevlink = $sk->makeKnownLinkObj( $this->mTitle
, wfMsg( 'previousrevision' ), 'direction=prev&oldid='.$oldid );
1832 $nextlink = $sk->makeKnownLinkObj( $this->mTitle
, wfMsg( 'nextrevision' ), 'direction=next&oldid='.$oldid );
1833 $r = wfMsg( 'revisionasofwithlink', $td, $lnk, $prevlink, $nextlink );
1834 $wgOut->setSubtitle( $r );
1838 * This function is called right before saving the wikitext,
1839 * so we can do things like signatures and links-in-context.
1841 * @param string $text
1843 function preSaveTransform( $text ) {
1844 global $wgParser, $wgUser;
1845 return $wgParser->preSaveTransform( $text, $this->mTitle
, $wgUser, ParserOptions
::newFromUser( $wgUser ) );
1848 /* Caching functions */
1851 * checkLastModified returns true if it has taken care of all
1852 * output to the client that is necessary for this request.
1853 * (that is, it has sent a cached version of the page)
1855 function tryFileCache() {
1856 static $called = false;
1858 wfDebug( " tryFileCache() -- called twice!?\n" );
1862 if($this->isFileCacheable()) {
1863 $touched = $this->mTouched
;
1864 $cache = new CacheManager( $this->mTitle
);
1865 if($cache->isFileCacheGood( $touched )) {
1867 wfDebug( " tryFileCache() - about to load\n" );
1868 $cache->loadFromFileCache();
1871 wfDebug( " tryFileCache() - starting buffer\n" );
1872 ob_start( array(&$cache, 'saveToFileCache' ) );
1875 wfDebug( " tryFileCache() - not cacheable\n" );
1880 * Check if the page can be cached
1883 function isFileCacheable() {
1884 global $wgUser, $wgUseFileCache, $wgShowIPinHeader, $wgRequest;
1885 extract( $wgRequest->getValues( 'action', 'oldid', 'diff', 'redirect', 'printable' ) );
1887 return $wgUseFileCache
1888 and (!$wgShowIPinHeader)
1889 and ($this->getID() != 0)
1890 and ($wgUser->getId() == 0)
1891 and (!$wgUser->getNewtalk())
1892 and ($this->mTitle
->getNamespace() != NS_SPECIAL
)
1893 and (empty( $action ) ||
$action == 'view')
1894 and (!isset($oldid))
1896 and (!isset($redirect))
1897 and (!isset($printable))
1898 and (!$this->mRedirectedFrom
);
1902 * Loads cur_touched and returns a value indicating if it should be used
1905 function checkTouched() {
1906 $fname = 'Article::checkTouched';
1907 $id = $this->getID();
1908 $dbr =& $this->getDB();
1909 $s = $dbr->selectRow( 'page', array( 'page_touched', 'page_is_redirect' ),
1910 array( 'page_id' => $id ), $fname, $this->getSelectOptions() );
1911 if( $s !== false ) {
1912 $this->mTouched
= wfTimestamp( TS_MW
, $s->page_touched
);
1913 return !$s->page_is_redirect
;
1920 * Edit an article without doing all that other stuff
1922 * @param string $text text submitted
1923 * @param string $comment comment submitted
1924 * @param integer $minor whereas it's a minor modification
1926 function quickEdit( $text, $comment = '', $minor = 0 ) {
1928 $fname = 'Article::quickEdit';
1930 #wfDebugDieBacktrace( "$fname called." );
1932 wfProfileIn( $fname );
1934 $dbw =& wfGetDB( DB_MASTER
);
1935 $ns = $this->mTitle
->getNamespace();
1936 $dbkey = $this->mTitle
->getDBkey();
1937 $encDbKey = $dbw->strencode( $dbkey );
1938 $timestamp = $dbw->timestamp();
1940 $dbw->insert( 'text', array(
1941 'old_text' => $text,
1942 'old_flags' => "" ), $fname );
1943 $text_id = $dbw->insertID();
1946 $dbw->update( 'page', array(
1948 'page_touched' => $timestamp,
1949 'page_is_redirect' => $this->isRedirect( $text ) ?
1 : 0,
1950 'page_latest' => $text_id ),
1951 array( 'page_namespace' => $ns, 'page_title' => $dbkey ), $fname );
1953 $page_id = $dbw->selectField( 'page', 'page_id', array( 'page_namespace' => $ns, 'page_title' => $dbkey ), $fname );
1956 $dbw->insert( 'revision', array(
1957 'rev_id' => $text_id,
1958 'rev_page' => $page_id,
1959 'rev_comment' => $comment,
1960 'rev_user' => $wgUser->getID(),
1961 'rev_user_text' => $wgUser->getName(),
1962 'rev_timestamp' => $timestamp,
1963 'inverse_timestamp' => wfInvertTimestamp( $timestamp ),
1964 'rev_minor_edit' => intval($minor) ),
1966 wfProfileOut( $fname );
1970 * Used to increment the view counter
1973 * @param integer $id article id
1975 function incViewCount( $id ) {
1976 $id = intval( $id );
1977 global $wgHitcounterUpdateFreq;
1979 $dbw =& wfGetDB( DB_MASTER
);
1980 $pageTable = $dbw->tableName( 'page' );
1981 $hitcounterTable = $dbw->tableName( 'hitcounter' );
1982 $acchitsTable = $dbw->tableName( 'acchits' );
1984 if( $wgHitcounterUpdateFreq <= 1 ){ //
1985 $dbw->query( "UPDATE $pageTable SET page_counter = page_counter + 1 WHERE page_id = $id" );
1989 # Not important enough to warrant an error page in case of failure
1990 $oldignore = $dbw->ignoreErrors( true );
1992 $dbw->query( "INSERT INTO $hitcounterTable (hc_id) VALUES ({$id})" );
1994 $checkfreq = intval( $wgHitcounterUpdateFreq/25 +
1 );
1995 if( (rand() %
$checkfreq != 0) or ($dbw->lastErrno() != 0) ){
1996 # Most of the time (or on SQL errors), skip row count check
1997 $dbw->ignoreErrors( $oldignore );
2001 $res = $dbw->query("SELECT COUNT(*) as n FROM $hitcounterTable");
2002 $row = $dbw->fetchObject( $res );
2003 $rown = intval( $row->n
);
2004 if( $rown >= $wgHitcounterUpdateFreq ){
2005 wfProfileIn( 'Article::incViewCount-collect' );
2006 $old_user_abort = ignore_user_abort( true );
2008 $dbw->query("LOCK TABLES $hitcounterTable WRITE");
2009 $dbw->query("CREATE TEMPORARY TABLE $acchitsTable TYPE=HEAP ".
2010 "SELECT hc_id,COUNT(*) AS hc_n FROM $hitcounterTable ".
2012 $dbw->query("DELETE FROM $hitcounterTable");
2013 $dbw->query('UNLOCK TABLES');
2014 $dbw->query("UPDATE $curTable,$acchitsTable SET cur_counter=cur_counter + hc_n ".
2015 'WHERE cur_id = hc_id');
2016 $dbw->query("DROP TABLE $acchitsTable");
2018 ignore_user_abort( $old_user_abort );
2019 wfProfileOut( 'Article::incViewCount-collect' );
2021 $dbw->ignoreErrors( $oldignore );
2025 * The onArticle*() functions are supposed to be a kind of hooks
2026 * which should be called whenever any of the specified actions
2029 * This is a good place to put code to clear caches, for instance.
2031 * This is called on page move and undelete, as well as edit
2033 * @param $title_obj a title object
2036 function onArticleCreate($title_obj) {
2037 global $wgUseSquid, $wgDeferredUpdateList;
2039 $titles = $title_obj->getBrokenLinksTo();
2042 if ( $wgUseSquid ) {
2043 $urls = $title_obj->getSquidURLs();
2044 foreach ( $titles as $linkTitle ) {
2045 $urls[] = $linkTitle->getInternalURL();
2047 $u = new SquidUpdate( $urls );
2048 array_push( $wgDeferredUpdateList, $u );
2051 # Clear persistent link cache
2052 LinkCache
::linksccClearBrokenLinksTo( $title_obj->getPrefixedDBkey() );
2055 function onArticleDelete($title_obj) {
2056 LinkCache
::linksccClearLinksTo( $title_obj->getArticleID() );
2058 function onArticleEdit($title_obj) {
2059 LinkCache
::linksccClearPage( $title_obj->getArticleID() );
2064 * Info about this page
2067 global $wgUser, $wgTitle, $wgOut, $wgAllowPageInfo;
2068 $fname = 'Article::info';
2070 wfDebugDieBacktrace( 'This function is apparently not called by any other PHP file and might be obsolete.' );
2072 if ( !$wgAllowPageInfo ) {
2073 $wgOut->errorpage( 'nosuchaction', 'nosuchactiontext' );
2077 $dbr =& $this->getDB();
2079 $basenamespace = $wgTitle->getNamespace() & (~
1);
2080 $cur_clause = array( 'cur_title' => $wgTitle->getDBkey(), 'cur_namespace' => $basenamespace );
2081 $old_clause = array( 'old_title' => $wgTitle->getDBkey(), 'old_namespace' => $basenamespace );
2082 $wl_clause = array( 'wl_title' => $wgTitle->getDBkey(), 'wl_namespace' => $basenamespace );
2083 $fullTitle = $wgTitle->makeName($basenamespace, $wgTitle->getDBKey());
2084 $wgOut->setPagetitle( $fullTitle );
2085 $wgOut->setSubtitle( wfMsg( 'infosubtitle' ));
2087 # first, see if the page exists at all.
2088 $exists = $dbr->selectField( 'cur', 'COUNT(*)', $cur_clause, $fname, $this->getSelectOptions() );
2090 $wgOut->addHTML( wfMsg('noarticletext') );
2092 $numwatchers = $dbr->selectField( 'watchlist', 'COUNT(*)', $wl_clause, $fname,
2093 $this->getSelectOptions() );
2094 $wgOut->addHTML( "<ul><li>" . wfMsg("numwatchers", $numwatchers) . '</li>' );
2095 $old = $dbr->selectField( 'old', 'COUNT(*)', $old_clause, $fname, $this->getSelectOptions() );
2096 $wgOut->addHTML( "<li>" . wfMsg('numedits', $old +
1) . '</li>');
2098 # to find number of distinct authors, we need to do some
2099 # funny stuff because of the cur/old table split:
2100 # - first, find the name of the 'cur' author
2101 # - then, find the number of *other* authors in 'old'
2104 $cur_author = $dbr->selectField( 'cur', 'cur_user_text', $cur_clause, $fname,
2105 $this->getSelectOptions() );
2107 # find number of 'old' authors excluding 'cur' author
2108 $authors = $dbr->selectField( 'old', 'COUNT(DISTINCT old_user_text)',
2109 $old_clause +
array( 'old_user_text<>' . $dbr->addQuotes( $cur_author ) ), $fname,
2110 $this->getSelectOptions() ) +
1;
2112 # now for the Talk page ...
2113 $cur_clause = array( 'cur_title' => $wgTitle->getDBkey(), 'cur_namespace' => $basenamespace+
1 );
2114 $old_clause = array( 'old_title' => $wgTitle->getDBkey(), 'old_namespace' => $basenamespace+
1 );
2117 $exists = $dbr->selectField( 'cur', 'COUNT(*)', $cur_clause, $fname, $this->getSelectOptions() );
2121 $old = $dbr->selectField( 'old', 'COUNT(*)', $old_clause, $fname, $this->getSelectOptions() );
2122 $wgOut->addHTML( '<li>' . wfMsg("numtalkedits", $old +
1) . '</li>');
2124 $wgOut->addHTML( '<li>' . wfMsg("numauthors", $authors) . '</li>' );
2128 $cur_author = $dbr->selectField( 'cur', 'cur_user_text', $cur_clause, $fname,
2129 $this->getSelectOptions() );
2130 $authors = $dbr->selectField( 'cur', 'COUNT(DISTINCT old_user_text)',
2131 $old_clause +
array( 'old_user_text<>' . $dbr->addQuotes( $cur_author ) ),
2132 $fname, $this->getSelectOptions() );
2134 $wgOut->addHTML( '<li>' . wfMsg('numtalkauthors', $authors) . '</li></ul>' );
2141 * Check whether an article is a stub
2144 * @param integer $articleID ID of the article that is to be checked
2146 function wfArticleIsStub( $articleID ) {
2148 $fname = 'wfArticleIsStub';
2150 wfDebugDieBacktrace( 'This function seems to be unused. Pending removal.' );
2152 $threshold = $wgUser->getOption('stubthreshold') ;
2153 if ( $threshold > 0 ) {
2154 $dbr =& wfGetDB( DB_SLAVE
);
2155 $s = $dbr->selectRow( array('page', 'text'),
2156 array( 'LENGTH(old_text) AS len', 'page_namespace', 'page_is_redirect' ),
2157 array( 'page_id' => $articleID, "page.page_latest=text.old_id" ),
2159 if ( $s == false OR $s->page_is_redirect
OR $s->page_namespace
!= NS_MAIN
) {
2163 return ( $size < $threshold );