9 * Need the CacheManager to be loaded
11 require_once ( 'CacheManager.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.
30 var $mContent, $mContentLoaded;
31 var $mUser, $mTimestamp, $mUserText;
32 var $mCounter, $mComment, $mCountAdjustment;
33 var $mMinorEdit, $mRedirectedFrom;
34 var $mTouched, $mFileCache, $mTitle;
40 * Constructor and clear the article
41 * @param mixed &$title
43 function Article( &$title ) {
44 $this->mTitle
=& $title;
53 $this->mContentLoaded
= false;
54 $this->mCurID
= $this->mUser
= $this->mCounter
= -1; # Not loaded
55 $this->mRedirectedFrom
= $this->mUserText
=
56 $this->mTimestamp
= $this->mComment
= $this->mFileCache
= '';
57 $this->mCountAdjustment
= 0;
58 $this->mTouched
= '19700101000000';
59 $this->mForUpdate
= false;
63 * Get revision text associated with an old or archive row
64 * $row is usually an object from wfFetchRow(), both the flags and the text
65 * field must be included
67 * @param integer $row Id of a row
68 * @param string $prefix table prefix (default 'old_')
69 * @return string $text|false the text requested
71 function getRevisionText( $row, $prefix = 'old_' ) {
73 $textField = $prefix . 'text';
74 $flagsField = $prefix . 'flags';
76 if( isset( $row->$flagsField ) ) {
77 $flags = explode( ',', $row->$flagsField );
82 if( isset( $row->$textField ) ) {
83 $text = $row->$textField;
88 if( in_array( 'gzip', $flags ) ) {
89 # Deal with optional compression of archived pages.
90 # This can be done periodically via maintenance/compressOld.php, and
91 # as pages are saved if $wgCompressRevisions is set.
92 $text = gzinflate( $text );
95 if( in_array( 'object', $flags ) ) {
96 # Generic compressed storage
97 $obj = unserialize( $text );
99 # Bugger, corrupted my test database by double-serializing
100 if ( !is_object( $obj ) ) {
101 $obj = unserialize( $obj );
104 $text = $obj->getText();
107 global $wgLegacyEncoding;
108 if( $wgLegacyEncoding && !in_array( 'utf-8', $flags ) ) {
109 # Old revisions kept around in a legacy encoding?
110 # Upconvert on demand.
111 global $wgInputEncoding, $wgContLang;
112 $text = $wgContLang->iconv( $wgLegacyEncoding, $wgInputEncoding, $text );
118 * If $wgCompressRevisions is enabled, we will compress data.
119 * The input string is modified in place.
120 * Return value is the flags field: contains 'gzip' if the
121 * data is compressed, and 'utf-8' if we're saving in UTF-8
125 * @param mixed $text reference to a text
128 function compressRevisionText( &$text ) {
129 global $wgCompressRevisions, $wgUseLatin1;
131 if( !$wgUseLatin1 ) {
132 # Revisions not marked this way will be converted
133 # on load if $wgLegacyCharset is set in the future.
136 if( $wgCompressRevisions ) {
137 if( function_exists( 'gzdeflate' ) ) {
138 $text = gzdeflate( $text );
141 wfDebug( "Article::compressRevisionText() -- no zlib support, not compressing\n" );
144 return implode( ',', $flags );
148 * Note that getContent/loadContent may follow redirects if
149 * not told otherwise, and so may cause a change to mTitle.
152 * @return Return the text of this revision
154 function getContent( $noredir ) {
157 # Get variables from query string :P
158 $action = $wgRequest->getText( 'action', 'view' );
159 $section = $wgRequest->getText( 'section' );
161 $fname = 'Article::getContent';
162 wfProfileIn( $fname );
164 if ( 0 == $this->getID() ) {
165 if ( 'edit' == $action ) {
166 wfProfileOut( $fname );
167 return ''; # was "newarticletext", now moved above the box)
169 wfProfileOut( $fname );
170 return wfMsg( 'noarticletext' );
172 $this->loadContent( $noredir );
173 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
174 if ( $this->mTitle
->getNamespace() == NS_USER_TALK
&&
175 preg_match('/^\d{1,3}\.\d{1,3}.\d{1,3}\.\d{1,3}$/',$this->mTitle
->getText()) &&
178 wfProfileOut( $fname );
179 return $this->mContent
. "\n" .wfMsg('anontalkpagetext');
181 if($action=='edit') {
183 if($section=='new') {
184 wfProfileOut( $fname );
188 # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
189 # comments to be stripped as well)
190 $rv=$this->getSection($this->mContent
,$section);
191 wfProfileOut( $fname );
195 wfProfileOut( $fname );
196 return $this->mContent
;
202 * This function returns the text of a section, specified by a number ($section).
203 * A section is text under a heading like == Heading == or <h1>Heading</h1>, or
204 * the first section before any such heading (section 0).
206 * If a section contains subsections, these are also returned.
208 * @param string $text text to look in
209 * @param integer $section section number
210 * @return string text of the requested section
212 function getSection($text,$section) {
214 # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
215 # comments to be stripped as well)
217 $parser=new Parser();
218 $parser->mOutputType
=OT_WIKI
;
219 $striptext=$parser->strip($text, $striparray, true);
221 # now that we can be sure that no pseudo-sections are in the source,
222 # split it up by section
225 '/(^=+.+?=+|^<h[1-6].*?' . '>.*?<\/h[1-6].*?' . '>)(?!\S)/mi',
227 PREG_SPLIT_DELIM_CAPTURE
);
231 $headline=$secs[$section*2-1];
232 preg_match( '/^(=+).+?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>(?!\S)/mi',$headline,$matches);
235 # translate wiki heading into level
236 if(strpos($hlevel,'=')!==false) {
237 $hlevel=strlen($hlevel);
240 $rv=$headline. $secs[$section*2];
244 while(!empty($secs[$count*2-1]) && !$break) {
246 $subheadline=$secs[$count*2-1];
247 preg_match( '/^(=+).+?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>(?!\S)/mi',$subheadline,$matches);
248 $subhlevel=$matches[1];
249 if(strpos($subhlevel,'=')!==false) {
250 $subhlevel=strlen($subhlevel);
252 if($subhlevel > $hlevel) {
253 $rv.=$subheadline.$secs[$count*2];
255 if($subhlevel <= $hlevel) {
262 # reinsert stripped tags
263 $rv=$parser->unstrip($rv,$striparray);
264 $rv=$parser->unstripNoWiki($rv,$striparray);
271 * Return an array of the columns of the "cur"-table
273 function &getCurContentFields() {
274 global $wgArticleCurContentFields;
275 if ( !$wgArticleCurContentFields ) {
276 $wgArticleCurContentFields = array( 'cur_text','cur_timestamp','cur_user', 'cur_user_text',
277 'cur_comment','cur_counter','cur_restrictions','cur_touched' );
279 return $wgArticleCurContentFields;
283 * Return an array of the columns of the "old"-table
285 function &getOldContentFields() {
286 global $wgArticleOldContentFields;
287 if ( !$wgArticleOldContentFields ) {
288 $wgArticleOldContentFields = array( 'old_namespace','old_title','old_text','old_timestamp',
289 'old_user','old_user_text','old_comment','old_flags' );
291 return $wgArticleOldContentFields;
295 * Return the oldid of the article that is to be shown.
296 * For requests with a "direction", this is not the oldid of the
299 function getOldID() {
300 global $wgRequest, $wgOut;
303 if ( isset( $lastid ) ) {
307 $oldid = $wgRequest->getVal( 'oldid' );
308 if ( isset( $oldid ) ) {
309 $dbr =& $this->getDB();
310 $oldid = IntVal( $oldid );
311 if ( $wgRequest->getVal( 'direction' ) == 'next' ) {
312 $nextid = $this->mTitle
->getNextRevisionID( $oldid );
316 $wgOut->redirect( $this->mTitle
->getFullURL( 'redirect=no' ) );
318 } elseif ( $wgRequest->getVal( 'direction' ) == 'prev' ) {
319 $previd = $this->mTitle
->getPreviousRevisionID( $oldid );
328 return @$oldid; # "@" to be able to return "unset" without PHP complaining
333 * Load the revision (including cur_text) into this object
335 function loadContent( $noredir = false ) {
336 global $wgOut, $wgRequest;
338 if ( $this->mContentLoaded
) return;
340 $dbr =& $this->getDB();
342 $oldid = $this->getOldID();
343 $redirect = $wgRequest->getVal( 'redirect' );
345 $fname = 'Article::loadContent';
347 # Pre-fill content with error message so that if something
348 # fails we'll have something telling us what we intended.
350 $t = $this->mTitle
->getPrefixedText();
352 if ( isset( $oldid ) ) {
353 $t .= ',oldid='.$oldid;
355 if ( isset( $redirect ) ) {
356 $redirect = ($redirect == 'no') ?
'no' : 'yes';
357 $t .= ',redirect='.$redirect;
359 $this->mContent
= wfMsg( 'missingarticle', $t );
361 if ( ! $oldid ) { # Retrieve current version
362 $id = $this->getID();
363 if ( 0 == $id ) return;
365 $s = $dbr->selectRow( 'cur', $this->getCurContentFields(), array( 'cur_id' => $id ), $fname,
366 $this->getSelectOptions() );
367 if ( $s === false ) {
371 # If we got a redirect, follow it (unless we've been told
372 # not to by either the function parameter or the query
373 if ( ( 'no' != $redirect ) && ( false == $noredir ) ) {
374 $rt = Title
::newFromRedirect( $s->cur_text
);
375 # process if title object is valid and not special:userlogout
376 if ( $rt && ! ( $rt->getNamespace() == NS_SPECIAL
&& $rt->getText() == 'Userlogout' ) ) {
377 # Gotta hand redirects to special pages differently:
378 # Fill the HTTP response "Location" header and ignore
379 # the rest of the page we're on.
381 if ( $rt->getInterwiki() != '' ) {
382 $wgOut->redirect( $rt->getFullURL() ) ;
385 if ( $rt->getNamespace() == NS_SPECIAL
) {
386 $wgOut->redirect( $rt->getFullURL() );
389 $rid = $rt->getArticleID();
391 $redirRow = $dbr->selectRow( 'cur', $this->getCurContentFields(),
392 array( 'cur_id' => $rid ), $fname, $this->getSelectOptions() );
394 if ( $redirRow !== false ) {
395 $this->mRedirectedFrom
= $this->mTitle
->getPrefixedText();
403 $this->mContent
= $s->cur_text
;
404 $this->mUser
= $s->cur_user
;
405 $this->mUserText
= $s->cur_user_text
;
406 $this->mComment
= $s->cur_comment
;
407 $this->mCounter
= $s->cur_counter
;
408 $this->mTimestamp
= wfTimestamp(TS_MW
,$s->cur_timestamp
);
409 $this->mTouched
= wfTimestamp(TS_MW
,$s->cur_touched
);
410 $this->mTitle
->mRestrictions
= explode( ',', trim( $s->cur_restrictions
) );
411 $this->mTitle
->mRestrictionsLoaded
= true;
412 } else { # oldid set, retrieve historical version
413 $s = $dbr->selectRow( 'old', $this->getOldContentFields(), array( 'old_id' => $oldid ),
414 $fname, $this->getSelectOptions() );
415 if ( $s === false ) {
419 if( $this->mTitle
->getNamespace() != $s->old_namespace ||
420 $this->mTitle
->getDBkey() != $s->old_title
) {
421 $oldTitle = Title
::makeTitle( $s->old_namesapce
, $s->old_title
);
422 $this->mTitle
= $oldTitle;
423 $wgTitle = $oldTitle;
425 $this->mContent
= Article
::getRevisionText( $s );
426 $this->mUser
= $s->old_user
;
427 $this->mUserText
= $s->old_user_text
;
428 $this->mComment
= $s->old_comment
;
430 $this->mTimestamp
= wfTimestamp(TS_MW
,$s->old_timestamp
);
432 $this->mContentLoaded
= true;
433 return $this->mContent
;
437 * Gets the article text without using so many damn globals
438 * Returns false on error
440 * @param integer $oldid
442 function getContentWithoutUsingSoManyDamnGlobals( $oldid = 0, $noredir = false ) {
443 if ( $this->mContentLoaded
) {
444 return $this->mContent
;
446 $this->mContent
= false;
448 $fname = 'Article::getContentWithout';
449 $dbr =& $this->getDB();
451 if ( ! $oldid ) { # Retrieve current version
452 $id = $this->getID();
457 $s = $dbr->selectRow( 'cur', $this->getCurContentFields(), array( 'cur_id' => $id ),
458 $fname, $this->getSelectOptions() );
459 if ( $s === false ) {
463 # If we got a redirect, follow it (unless we've been told
464 # not to by either the function parameter or the query
466 $rt = Title
::newFromRedirect( $s->cur_text
);
467 if( $rt && $rt->getInterwiki() == '' && $rt->getNamespace() != NS_SPECIAL
) {
468 $rid = $rt->getArticleID();
470 $redirRow = $dbr->selectRow( 'cur', $this->getCurContentFields(),
471 array( 'cur_id' => $rid ), $fname, $this->getSelectOptions() );
473 if ( $redirRow !== false ) {
474 $this->mRedirectedFrom
= $this->mTitle
->getPrefixedText();
482 $this->mContent
= $s->cur_text
;
483 $this->mUser
= $s->cur_user
;
484 $this->mUserText
= $s->cur_user_text
;
485 $this->mComment
= $s->cur_comment
;
486 $this->mCounter
= $s->cur_counter
;
487 $this->mTimestamp
= wfTimestamp(TS_MW
,$s->cur_timestamp
);
488 $this->mTouched
= wfTimestamp(TS_MW
,$s->cur_touched
);
489 $this->mTitle
->mRestrictions
= explode( ',', trim( $s->cur_restrictions
) );
490 $this->mTitle
->mRestrictionsLoaded
= true;
491 } else { # oldid set, retrieve historical version
492 $s = $dbr->selectRow( 'old', $this->getOldContentFields(), array( 'old_id' => $oldid ),
493 $fname, $this->getSelectOptions() );
494 if ( $s === false ) {
497 $this->mContent
= Article
::getRevisionText( $s );
498 $this->mUser
= $s->old_user
;
499 $this->mUserText
= $s->old_user_text
;
500 $this->mComment
= $s->old_comment
;
502 $this->mTimestamp
= wfTimestamp(TS_MW
,$s->old_timestamp
);
504 $this->mContentLoaded
= true;
505 return $this->mContent
;
509 * Read/write accessor to select FOR UPDATE
511 function forUpdate( $x = NULL ) {
512 return wfSetVar( $this->mForUpdate
, $x );
516 * Get the database which should be used for reads
519 if ( $this->mForUpdate
) {
520 return wfGetDB( DB_MASTER
);
522 return wfGetDB( DB_SLAVE
);
527 * Get options for all SELECT statements
528 * Can pass an option array, to which the class-wide options will be appended
530 function getSelectOptions( $options = '' ) {
531 if ( $this->mForUpdate
) {
533 $options[] = 'FOR UPDATE';
535 $options = 'FOR UPDATE';
542 * Return the Article ID
545 if( $this->mTitle
) {
546 return $this->mTitle
->getArticleID();
553 * Get the view count for this article
555 function getCount() {
556 if ( -1 == $this->mCounter
) {
557 $id = $this->getID();
558 $dbr =& $this->getDB();
559 $this->mCounter
= $dbr->selectField( 'cur', 'cur_counter', 'cur_id='.$id,
560 'Article::getCount', $this->getSelectOptions() );
562 return $this->mCounter
;
566 * Would the given text make this article a "good" article (i.e.,
567 * suitable for including in the article count)?
569 function isCountable( $text ) {
570 global $wgUseCommaCount;
572 if ( 0 != $this->mTitle
->getNamespace() ) { return 0; }
573 if ( $this->isRedirect( $text ) ) { return 0; }
574 $token = ($wgUseCommaCount ?
',' : '[[' );
575 if ( false === strstr( $text, $token ) ) { return 0; }
580 * Tests if the article text represents a redirect
582 function isRedirect( $text = false ) {
583 if ( $text === false ) {
584 $this->loadContent();
585 $titleObj = Title
::newFromRedirect( $this->mText
);
587 $titleObj = Title
::newFromRedirect( $text );
589 return $titleObj !== NULL;
593 * Loads everything from cur except cur_text
594 * This isn't necessary for all uses, so it's only done if needed.
597 function loadLastEdit() {
599 if ( -1 != $this->mUser
) return;
601 $fname = 'Article::loadLastEdit';
603 $dbr =& $this->getDB();
604 $s = $dbr->selectRow( 'cur',
605 array( 'cur_user','cur_user_text','cur_timestamp', 'cur_comment','cur_minor_edit' ),
606 array( 'cur_id' => $this->getID() ), $fname, $this->getSelectOptions() );
608 if ( $s !== false ) {
609 $this->mUser
= $s->cur_user
;
610 $this->mUserText
= $s->cur_user_text
;
611 $this->mTimestamp
= wfTimestamp(TS_MW
,$s->cur_timestamp
);
612 $this->mComment
= $s->cur_comment
;
613 $this->mMinorEdit
= $s->cur_minor_edit
;
617 function getTimestamp() {
618 $this->loadLastEdit();
619 return $this->mTimestamp
;
623 $this->loadLastEdit();
627 function getUserText() {
628 $this->loadLastEdit();
629 return $this->mUserText
;
632 function getComment() {
633 $this->loadLastEdit();
634 return $this->mComment
;
637 function getMinorEdit() {
638 $this->loadLastEdit();
639 return $this->mMinorEdit
;
642 function getContributors($limit = 0, $offset = 0) {
643 $fname = 'Article::getContributors';
645 # XXX: this is expensive; cache this info somewhere.
647 $title = $this->mTitle
;
649 $dbr =& $this->getDB();
650 $oldTable = $dbr->tableName( 'old' );
651 $userTable = $dbr->tableName( 'user' );
652 $encDBkey = $dbr->addQuotes( $title->getDBkey() );
653 $ns = $title->getNamespace();
654 $user = $this->getUser();
656 $sql = "SELECT old_user, old_user_text, user_real_name, MAX(old_timestamp) as timestamp
657 FROM $oldTable LEFT JOIN $userTable ON old_user = user_id
658 WHERE old_namespace = $user
659 AND old_title = $encDBkey
660 AND old_user != $user
661 GROUP BY old_user, old_user_text, user_real_name
662 ORDER BY timestamp DESC";
664 if ($limit > 0) { $sql .= ' LIMIT '.$limit; }
665 $sql .= ' '. $this->getSelectOptions();
667 $res = $dbr->query($sql, $fname);
669 while ( $line = $dbr->fetchObject( $res ) ) {
670 $contribs[] = array($line->old_user
, $line->old_user_text
, $line->user_real_name
);
673 $dbr->freeResult($res);
678 * This is the default action of the script: just view the page of
682 global $wgUser, $wgOut, $wgRequest, $wgOnlySysopsCanPatrol, $wgLang;
683 global $wgLinkCache, $IP, $wgEnableParserCache, $wgStylePath, $wgUseRCPatrol;
684 $sk = $wgUser->getSkin();
686 $fname = 'Article::view';
687 wfProfileIn( $fname );
688 # Get variables from query string
689 $oldid = $this->getOldID();
690 $diff = $wgRequest->getVal( 'diff' );
691 $rcid = $wgRequest->getVal( 'rcid' );
693 $wgOut->setArticleFlag( true );
694 $wgOut->setRobotpolicy( 'index,follow' );
695 # If we got diff and oldid in the query, we want to see a
696 # diff page instead of the article.
698 if ( !is_null( $diff ) ) {
699 require_once( 'DifferenceEngine.php' );
700 $wgOut->setPageTitle( $this->mTitle
->getPrefixedText() );
701 $de = new DifferenceEngine( $oldid, $diff, $rcid );
704 # Run view updates for current revision only
705 $this->viewUpdates();
707 wfProfileOut( $fname );
710 if ( empty( $oldid ) && $this->checkTouched() ) {
711 if( $wgOut->checkLastModified( $this->mTouched
) ){
712 wfProfileOut( $fname );
714 } else if ( $this->tryFileCache() ) {
715 # tell wgOut that output is taken care of
717 $this->viewUpdates();
718 wfProfileOut( $fname );
722 # Should the parser cache be used?
723 if ( $wgEnableParserCache && intval($wgUser->getOption( 'stubthreshold' )) == 0 && empty( $oldid ) ) {
731 if ( $wgOut->tryParserCache( $this, $wgUser ) ) {
735 if ( !$outputDone ) {
736 $text = $this->getContent( false ); # May change mTitle by following a redirect
738 # Another whitelist check in case oldid or redirects are altering the title
739 if ( !$this->mTitle
->userCanRead() ) {
740 $wgOut->loginToUse();
746 # We're looking at an old revision
748 if ( !empty( $oldid ) ) {
749 $this->setOldSubtitle( $oldid );
750 $wgOut->setRobotpolicy( 'noindex,follow' );
752 if ( '' != $this->mRedirectedFrom
) {
753 $sk = $wgUser->getSkin();
754 $redir = $sk->makeKnownLink( $this->mRedirectedFrom
, '',
756 $s = wfMsg( 'redirectedfrom', $redir );
757 $wgOut->setSubtitle( $s );
759 # Can't cache redirects
763 # wrap user css and user js in pre and don't parse
764 # XXX: use $this->mTitle->usCssJsSubpage() when php is fixed/ a workaround is found
766 $this->mTitle
->getNamespace() == NS_USER
&&
767 preg_match('/\\/[\\w]+\\.(css|js)$/', $this->mTitle
->getDBkey())
769 $wgOut->addWikiText( wfMsg('clearyourcache'));
770 $wgOut->addHTML( '<pre>'.htmlspecialchars($this->mContent
)."\n</pre>" );
771 } else if ( $rt = Title
::newFromRedirect( $text ) ) {
773 $imageUrl = $wgStylePath.'/common/images/redirect.png';
774 $targetUrl = $rt->escapeLocalURL();
775 $titleText = htmlspecialchars( $rt->getPrefixedText() );
776 $link = $sk->makeLinkObj( $rt );
778 $wgOut->addHTML( '<img valign="center" src="'.$imageUrl.'" alt="#REDIRECT" />' .
779 '<span class="redirectText">'.$link.'</span>' );
781 } else if ( $pcache ) {
782 # Display content and save to parser cache
783 $wgOut->addPrimaryWikiText( $text, $this );
785 # Display content, don't attempt to save to parser cache
786 $wgOut->addWikiText( $text );
789 $wgOut->setPageTitle( $this->mTitle
->getPrefixedText() );
790 # If we have been passed an &rcid= parameter, we want to give the user a
791 # chance to mark this new article as patrolled.
792 if ( $wgUseRCPatrol && !is_null ( $rcid ) && $rcid != 0 && $wgUser->getID() != 0 &&
793 ( $wgUser->isAllowed('patrol') ||
!$wgOnlySysopsCanPatrol ) )
795 $wgOut->addHTML( wfMsg ( 'markaspatrolledlink',
796 $sk->makeKnownLinkObj ( $this->mTitle
, wfMsg ( 'markaspatrolledtext' ),
797 'action=markpatrolled&rcid='.$rcid )
801 # Put link titles into the link cache
802 $wgOut->transformBuffer();
804 # Add link titles as META keywords
805 $wgOut->addMetaTags() ;
807 $this->viewUpdates();
808 wfProfileOut( $fname );
812 * Theoretically we could defer these whole insert and update
813 * functions for after display, but that's taking a big leap
814 * of faith, and we want to be able to report database
815 * errors at some point.
818 function insertNewArticle( $text, $summary, $isminor, $watchthis ) {
819 global $wgOut, $wgUser;
820 global $wgUseSquid, $wgDeferredUpdateList, $wgInternalServer;
822 $fname = 'Article::insertNewArticle';
824 $this->mCountAdjustment
= $this->isCountable( $text );
826 $ns = $this->mTitle
->getNamespace();
827 $ttl = $this->mTitle
->getDBkey();
828 $text = $this->preSaveTransform( $text );
829 if ( $this->isRedirect( $text ) ) { $redir = 1; }
832 $now = wfTimestampNow();
833 $won = wfInvertTimestamp( $now );
836 $dbw =& wfGetDB( DB_MASTER
);
838 $cur_id = $dbw->nextSequenceValue( 'cur_cur_id_seq' );
840 $isminor = ( $isminor && $wgUser->getID() ) ?
1 : 0;
842 $dbw->insert( 'cur', array(
844 'cur_namespace' => $ns,
847 'cur_comment' => $summary,
848 'cur_user' => $wgUser->getID(),
849 'cur_timestamp' => $dbw->timestamp($now),
850 'cur_minor_edit' => $isminor,
852 'cur_restrictions' => '',
853 'cur_user_text' => $wgUser->getName(),
854 'cur_is_redirect' => $redir,
856 'cur_random' => $rand,
857 'cur_touched' => $dbw->timestamp($now),
858 'inverse_timestamp' => $won,
861 $newid = $dbw->insertId();
862 $this->mTitle
->resetArticleID( $newid );
864 Article
::onArticleCreate( $this->mTitle
);
865 RecentChange
::notifyNew( $now, $this->mTitle
, $isminor, $wgUser, $summary );
868 if(!$this->mTitle
->userIsWatching()) $this->watch();
870 if ( $this->mTitle
->userIsWatching() ) {
875 # The talk page isn't in the regular link tables, so we need to update manually:
876 $talkns = $ns ^
1; # talk -> normal; normal -> talk
877 $dbw->update( 'cur', array('cur_touched' => $dbw->timestamp($now) ),
878 array( 'cur_namespace' => $talkns, 'cur_title' => $ttl ), $fname );
880 # standard deferred updates
881 $this->editUpdates( $text );
883 $this->showArticle( $text, wfMsg( 'newarticle' ) );
888 * Side effects: loads last edit if $edittime is NULL
890 function getTextOfLastEditWithSectionReplacedOrAdded($section, $text, $summary = '', $edittime = NULL) {
891 $fname = 'Article::getTextOfLastEditWithSectionReplacedOrAdded';
892 if(is_null($edittime)) {
893 $this->loadLastEdit();
894 $oldtext = $this->getContent( true );
896 $dbw =& wfGetDB( DB_MASTER
);
897 $ns = $this->mTitle
->getNamespace();
898 $title = $this->mTitle
->getDBkey();
899 $obj = $dbw->selectRow( 'old',
900 array( 'old_text','old_flags'),
901 array( 'old_namespace' => $ns, 'old_title' => $title,
902 'old_timestamp' => $dbw->timestamp($edittime)),
904 $oldtext = Article
::getRevisionText( $obj );
906 if ($section != '') {
907 if($section=='new') {
908 if($summary) $subject="== {$summary} ==\n\n";
909 $text=$oldtext."\n\n".$subject.$text;
912 # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
913 # comments to be stripped as well)
915 $parser=new Parser();
916 $parser->mOutputType
=OT_WIKI
;
917 $oldtext=$parser->strip($oldtext, $striparray, true);
919 # now that we can be sure that no pseudo-sections are in the source,
921 # Unfortunately we can't simply do a preg_replace because that might
922 # replace the wrong section, so we have to use the section counter instead
923 $secs=preg_split('/(^=+.+?=+|^<h[1-6].*?' . '>.*?<\/h[1-6].*?' . '>)(?!\S)/mi',
924 $oldtext,-1,PREG_SPLIT_DELIM_CAPTURE
);
925 $secs[$section*2]=$text."\n\n"; // replace with edited
927 # section 0 is top (intro) section
930 # headline of old section - we need to go through this section
931 # to determine if there are any subsections that now need to
932 # be erased, as the mother section has been replaced with
933 # the text of all subsections.
934 $headline=$secs[$section*2-1];
935 preg_match( '/^(=+).+?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>(?!\S)/mi',$headline,$matches);
938 # determine headline level for wikimarkup headings
939 if(strpos($hlevel,'=')!==false) {
940 $hlevel=strlen($hlevel);
943 $secs[$section*2-1]=''; // erase old headline
946 while(!empty($secs[$count*2-1]) && !$break) {
948 $subheadline=$secs[$count*2-1];
950 '/^(=+).+?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>(?!\S)/mi',$subheadline,$matches);
951 $subhlevel=$matches[1];
952 if(strpos($subhlevel,'=')!==false) {
953 $subhlevel=strlen($subhlevel);
955 if($subhlevel > $hlevel) {
956 // erase old subsections
957 $secs[$count*2-1]='';
960 if($subhlevel <= $hlevel) {
968 $text=join('',$secs);
969 # reinsert the stuff that we stripped out earlier
970 $text=$parser->unstrip($text,$striparray);
971 $text=$parser->unstripNoWiki($text,$striparray);
979 * Change an existing article. Puts the previous version back into the old table, updates RC
980 * and all necessary caches, mostly via the deferred update array.
982 * It is possible to call this function from a command-line script, but note that you should
983 * first set $wgUser, and clean up $wgDeferredUpdates after each edit.
985 function updateArticle( $text, $summary, $minor, $watchthis, $forceBot = false, $sectionanchor = '' ) {
986 global $wgOut, $wgUser;
987 global $wgDBtransactions, $wgMwRedir;
988 global $wgUseSquid, $wgInternalServer;
990 $fname = 'Article::updateArticle';
993 if ( $this->mMinorEdit
) { $me1 = 1; } else { $me1 = 0; }
994 if ( $minor && $wgUser->getID() ) { $me2 = 1; } else { $me2 = 0; }
995 if ( $this->isRedirect( $text ) ) {
996 # Remove all content but redirect
997 # This could be done by reconstructing the redirect from a title given by
998 # Title::newFromRedirect(), but then we wouldn't know which synonym the user
1000 if ( preg_match( "/^((" . $wgMwRedir->getBaseRegex() . ')[^\\n]+)/i', $text, $m ) ) {
1002 $text = $m[1] . "\n";
1005 else { $redir = 0; }
1007 $text = $this->preSaveTransform( $text );
1008 $dbw =& wfGetDB( DB_MASTER
);
1010 # Update article, but only if changed.
1012 # It's important that we either rollback or complete, otherwise an attacker could
1013 # overwrite cur entries by sending precisely timed user aborts. Random bored users
1014 # could conceivably have the same effect, especially if cur is locked for long periods.
1015 if( $wgDBtransactions ) {
1016 $dbw->query( 'BEGIN', $fname );
1018 $userAbort = ignore_user_abort( true );
1021 $oldtext = $this->getContent( true );
1023 if ( 0 != strcmp( $text, $oldtext ) ) {
1024 $this->mCountAdjustment
= $this->isCountable( $text )
1025 - $this->isCountable( $oldtext );
1026 $now = wfTimestampNow();
1027 $won = wfInvertTimestamp( $now );
1029 # First update the cur row
1030 $dbw->update( 'cur',
1032 'cur_text' => $text,
1033 'cur_comment' => $summary,
1034 'cur_minor_edit' => $me2,
1035 'cur_user' => $wgUser->getID(),
1036 'cur_timestamp' => $dbw->timestamp($now),
1037 'cur_user_text' => $wgUser->getName(),
1038 'cur_is_redirect' => $redir,
1040 'cur_touched' => $dbw->timestamp($now),
1041 'inverse_timestamp' => $won
1042 ), array( /* WHERE */
1043 'cur_id' => $this->getID(),
1044 'cur_timestamp' => $dbw->timestamp($this->getTimestamp())
1048 if( $dbw->affectedRows() == 0 ) {
1049 /* Belated edit conflict! Run away!! */
1052 # Now insert the previous revision into old
1054 # This overwrites $oldtext if revision compression is on
1055 $flags = Article
::compressRevisionText( $oldtext );
1057 $dbw->insert( 'old',
1059 'old_id' => $dbw->nextSequenceValue( 'old_old_id_seq' ),
1060 'old_namespace' => $this->mTitle
->getNamespace(),
1061 'old_title' => $this->mTitle
->getDBkey(),
1062 'old_text' => $oldtext,
1063 'old_comment' => $this->getComment(),
1064 'old_user' => $this->getUser(),
1065 'old_user_text' => $this->getUserText(),
1066 'old_timestamp' => $dbw->timestamp($this->getTimestamp()),
1067 'old_minor_edit' => $me1,
1068 'inverse_timestamp' => wfInvertTimestamp( $this->getTimestamp() ),
1069 'old_flags' => $flags,
1073 $oldid = $dbw->insertId();
1075 $bot = (int)($wgUser->isBot() ||
$forceBot);
1076 RecentChange
::notifyEdit( $now, $this->mTitle
, $me2, $wgUser, $summary,
1077 $oldid, $this->getTimestamp(), $bot );
1078 Article
::onArticleEdit( $this->mTitle
);
1082 if( $wgDBtransactions ) {
1083 $dbw->query( 'COMMIT', $fname );
1085 ignore_user_abort( $userAbort );
1090 if (!$this->mTitle
->userIsWatching()) $this->watch();
1092 if ( $this->mTitle
->userIsWatching() ) {
1096 # standard deferred updates
1097 $this->editUpdates( $text );
1101 # Template namespace
1102 # Purge all articles linking here
1103 if ( $this->mTitle
->getNamespace() == NS_TEMPLATE
) {
1104 $titles = $this->mTitle
->getLinksTo();
1105 Title
::touchArray( $titles );
1106 if ( $wgUseSquid ) {
1107 foreach ( $titles as $title ) {
1108 $urls[] = $title->getInternalURL();
1114 if ( $wgUseSquid ) {
1115 $urls = array_merge( $urls, $this->mTitle
->getSquidURLs() );
1116 $u = new SquidUpdate( $urls );
1120 $this->showArticle( $text, wfMsg( 'updated' ), $sectionanchor );
1126 * After we've either updated or inserted the article, update
1127 * the link tables and redirect to the new page.
1129 function showArticle( $text, $subtitle , $sectionanchor = '' ) {
1130 global $wgOut, $wgUser, $wgLinkCache;
1132 $wgLinkCache = new LinkCache();
1134 $wgLinkCache->forUpdate( true );
1136 # Get old version of link table to allow incremental link updates
1137 $wgLinkCache->preFill( $this->mTitle
);
1138 $wgLinkCache->clear();
1140 # Parse the text and replace links with placeholders
1141 $wgOut = new OutputPage();
1142 $wgOut->addWikiText( $text );
1144 # Look up the links in the DB and add them to the link cache
1145 $wgOut->transformBuffer( RLH_FOR_UPDATE
);
1147 if( $this->isRedirect( $text ) )
1151 $wgOut->redirect( $this->mTitle
->getFullURL( $r ).$sectionanchor );
1156 * @todo document this function a bit more
1158 function validate () {
1159 global $wgOut, $wgUseValidation;
1160 if( $wgUseValidation ) {
1161 require_once ( 'SpecialValidate.php' ) ;
1162 $wgOut->setPagetitle( wfMsg( 'validate' ) . ': ' . $this->mTitle
->getPrefixedText() );
1163 $wgOut->setRobotpolicy( 'noindex,follow' );
1164 if( $this->mTitle
->getNamespace() != 0 ) {
1165 $wgOut->addHTML( wfMsg( 'val_validate_article_namespace_only' ) );
1168 $v = new Validation
;
1169 $v->validate_form( $this->mTitle
->getDBkey() );
1171 $wgOut->errorpage( 'nosuchaction', 'nosuchactiontext' );
1176 * Mark this particular edit as patrolled
1178 function markpatrolled() {
1179 global $wgOut, $wgRequest, $wgOnlySysopsCanPatrol, $wgUseRCPatrol, $wgUser;
1180 $wgOut->setRobotpolicy( 'noindex,follow' );
1182 if ( !$wgUseRCPatrol )
1184 $wgOut->errorpage( 'rcpatroldisabled', 'rcpatroldisabledtext' );
1187 if ( $wgUser->getID() == 0 )
1189 $wgOut->loginToUse();
1192 if ( $wgOnlySysopsCanPatrol && !$wgUser->isAllowed('patrol') )
1194 $wgOut->sysopRequired();
1197 $rcid = $wgRequest->getVal( 'rcid' );
1198 if ( !is_null ( $rcid ) )
1200 RecentChange
::markPatrolled( $rcid );
1201 $wgOut->setPagetitle( wfMsg( 'markedaspatrolled' ) );
1202 $wgOut->addWikiText( wfMsg( 'markedaspatrolledtext' ) );
1203 $wgOut->returnToMain( true, $this->mTitle
->getPrefixedText() );
1207 $wgOut->errorpage( 'markedaspatrollederror', 'markedaspatrollederrortext' );
1213 * Add or remove this page to my watchlist based on value of $add
1215 function watch( $add = true ) {
1216 global $wgUser, $wgOut;
1217 global $wgDeferredUpdateList;
1219 if ( 0 == $wgUser->getID() ) {
1220 $wgOut->errorpage( 'watchnologin', 'watchnologintext' );
1223 if ( wfReadOnly() ) {
1224 $wgOut->readOnlyPage();
1228 $wgUser->addWatch( $this->mTitle
);
1230 $wgUser->removeWatch( $this->mTitle
);
1232 $wgOut->setPagetitle( wfMsg( $add ?
'addedwatch' : 'removedwatch' ) );
1233 $wgOut->setRobotpolicy( 'noindex,follow' );
1235 $sk = $wgUser->getSkin() ;
1236 $link = $this->mTitle
->getPrefixedText();
1239 $text = wfMsg( 'addedwatchtext', $link );
1241 $text = wfMsg( 'removedwatchtext', $link );
1242 $wgOut->addWikiText( $text );
1244 $up = new UserUpdate();
1245 array_push( $wgDeferredUpdateList, $up );
1247 $wgOut->returnToMain( true, $this->mTitle
->getPrefixedText() );
1251 * Stop watching a page, it act just like a call to watch(false)
1253 function unwatch() {
1254 $this->watch( false );
1260 function protect( $limit = 'sysop' ) {
1261 global $wgUser, $wgOut, $wgRequest;
1263 if ( ! $wgUser->isAllowed('protect') ) {
1264 $wgOut->sysopRequired();
1267 if ( wfReadOnly() ) {
1268 $wgOut->readOnlyPage();
1271 $id = $this->mTitle
->getArticleID();
1273 $wgOut->fatalError( wfMsg( 'badarticleerror' ) );
1277 $confirm = $wgRequest->getBool( 'wpConfirmProtect' ) && $wgRequest->wasPosted();
1278 $reason = $wgRequest->getText( 'wpReasonProtect' );
1281 $dbw =& wfGetDB( DB_MASTER
);
1282 $dbw->update( 'cur',
1284 'cur_touched' => $dbw->timestamp(),
1285 'cur_restrictions' => (string)$limit
1286 ), array( /* WHERE */
1288 ), 'Article::protect'
1291 $log = new LogPage( 'protect' );
1292 if ( $limit === '' ) {
1293 $log->addEntry( 'unprotect', $this->mTitle
, $reason );
1295 $log->addEntry( 'protect', $this->mTitle
, $reason );
1297 $wgOut->redirect( $this->mTitle
->getFullURL() );
1300 $reason = htmlspecialchars( wfMsg( 'protectreason' ) );
1301 return $this->confirmProtect( '', $reason, $limit );
1306 * Output protection confirmation dialog
1308 function confirmProtect( $par, $reason, $limit = 'sysop' ) {
1311 wfDebug( "Article::confirmProtect\n" );
1313 $sub = htmlspecialchars( $this->mTitle
->getPrefixedText() );
1314 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1319 if ( $limit === '' ) {
1320 $wgOut->setPageTitle( wfMsg( 'confirmunprotect' ) );
1321 $wgOut->setSubtitle( wfMsg( 'unprotectsub', $sub ) );
1322 $wgOut->addWikiText( wfMsg( 'confirmunprotecttext' ) );
1323 $check = htmlspecialchars( wfMsg( 'confirmunprotect' ) );
1324 $protcom = htmlspecialchars( wfMsg( 'unprotectcomment' ) );
1325 $formaction = $this->mTitle
->escapeLocalURL( 'action=unprotect' . $par );
1327 $wgOut->setPageTitle( wfMsg( 'confirmprotect' ) );
1328 $wgOut->setSubtitle( wfMsg( 'protectsub', $sub ) );
1329 $wgOut->addWikiText( wfMsg( 'confirmprotecttext' ) );
1330 $check = htmlspecialchars( wfMsg( 'confirmprotect' ) );
1331 $protcom = htmlspecialchars( wfMsg( 'protectcomment' ) );
1332 $formaction = $this->mTitle
->escapeLocalURL( 'action=protect' . $par );
1335 $confirm = htmlspecialchars( wfMsg( 'confirm' ) );
1338 <form id='protectconfirm' method='post' action=\"{$formaction}\">
1342 <label for='wpReasonProtect'>{$protcom}:</label>
1345 <input type='text' size='60' name='wpReasonProtect' id='wpReasonProtect' value=\"" . htmlspecialchars( $reason ) . "\" />
1353 <input type='checkbox' name='wpConfirmProtect' value='1' id='wpConfirmProtect' />
1356 <label for='wpConfirmProtect'>{$check}</label>
1362 <input type='submit' name='wpConfirmProtectB' value=\"{$confirm}\" />
1368 $wgOut->returnToMain( false );
1372 * Unprotect the pages
1374 function unprotect() {
1375 return $this->protect( '' );
1379 * UI entry point for page deletion
1382 global $wgUser, $wgOut, $wgMessageCache, $wgRequest;
1383 $fname = 'Article::delete';
1384 $confirm = $wgRequest->getBool( 'wpConfirm' ) && $wgRequest->wasPosted();
1385 $reason = $wgRequest->getText( 'wpReason' );
1387 # This code desperately needs to be totally rewritten
1390 if ( ( ! $wgUser->isAllowed('delete') ) ) {
1391 $wgOut->sysopRequired();
1394 if ( wfReadOnly() ) {
1395 $wgOut->readOnlyPage();
1399 # Better double-check that it hasn't been deleted yet!
1400 $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
1401 if ( ( '' == trim( $this->mTitle
->getText() ) )
1402 or ( $this->mTitle
->getArticleId() == 0 ) ) {
1403 $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
1408 $this->doDelete( $reason );
1412 # determine whether this page has earlier revisions
1413 # and insert a warning if it does
1414 # we select the text because it might be useful below
1415 $dbr =& $this->getDB();
1416 $ns = $this->mTitle
->getNamespace();
1417 $title = $this->mTitle
->getDBkey();
1418 $old = $dbr->selectRow( 'old',
1419 array( 'old_text', 'old_flags' ),
1421 'old_namespace' => $ns,
1422 'old_title' => $title,
1423 ), $fname, $this->getSelectOptions( array( 'ORDER BY' => 'inverse_timestamp' ) )
1426 if( $old !== false && !$confirm ) {
1427 $skin=$wgUser->getSkin();
1428 $wgOut->addHTML('<b>'.wfMsg('historywarning'));
1429 $wgOut->addHTML( $skin->historyLink() .'</b>');
1433 $s = $dbr->selectRow( 'cur',
1434 array( 'cur_text' ),
1436 'cur_namespace' => $ns,
1437 'cur_title' => $title,
1438 ), $fname, $this->getSelectOptions()
1441 if( $s !== false ) {
1442 # if this is a mini-text, we can paste part of it into the deletion reason
1444 #if this is empty, an earlier revision may contain "useful" text
1446 if($s->cur_text
!= '') {
1450 $text = Article
::getRevisionText( $old );
1456 $length=strlen($text);
1458 # this should not happen, since it is not possible to store an empty, new
1459 # page. Let's insert a standard text in case it does, though
1460 if($length == 0 && $reason === '') {
1461 $reason = wfMsg('exblank');
1464 if($length < 500 && $reason === '') {
1466 # comment field=255, let's grep the first 150 to have some user
1468 $text=substr($text,0,150);
1469 # let's strip out newlines and HTML tags
1470 $text=preg_replace('/\"/',"'",$text);
1471 $text=preg_replace('/\</','<',$text);
1472 $text=preg_replace('/\>/','>',$text);
1473 $text=preg_replace("/[\n\r]/",'',$text);
1475 $reason=wfMsg('excontent'). " '".$text;
1477 $reason=wfMsg('exbeforeblank') . " '".$text;
1479 if($length>150) { $reason .= '...'; } # we've only pasted part of the text
1484 return $this->confirmDelete( '', $reason );
1488 * Output deletion confirmation dialog
1490 function confirmDelete( $par, $reason ) {
1493 wfDebug( "Article::confirmDelete\n" );
1495 $sub = htmlspecialchars( $this->mTitle
->getPrefixedText() );
1496 $wgOut->setSubtitle( wfMsg( 'deletesub', $sub ) );
1497 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1498 $wgOut->addWikiText( wfMsg( 'confirmdeletetext' ) );
1500 $formaction = $this->mTitle
->escapeLocalURL( 'action=delete' . $par );
1502 $confirm = htmlspecialchars( wfMsg( 'confirm' ) );
1503 $check = htmlspecialchars( wfMsg( 'confirmcheck' ) );
1504 $delcom = htmlspecialchars( wfMsg( 'deletecomment' ) );
1507 <form id='deleteconfirm' method='post' action=\"{$formaction}\">
1511 <label for='wpReason'>{$delcom}:</label>
1514 <input type='text' size='60' name='wpReason' id='wpReason' value=\"" . htmlspecialchars( $reason ) . "\" />
1522 <input type='checkbox' name='wpConfirm' value='1' id='wpConfirm' />
1525 <label for='wpConfirm'>{$check}</label>
1531 <input type='submit' name='wpConfirmB' value=\"{$confirm}\" />
1537 $wgOut->returnToMain( false );
1542 * Perform a deletion and output success or failure messages
1544 function doDelete( $reason ) {
1545 global $wgOut, $wgUser, $wgContLang;
1546 $fname = 'Article::doDelete';
1547 wfDebug( $fname."\n" );
1549 if ( $this->doDeleteArticle( $reason ) ) {
1550 $deleted = $this->mTitle
->getPrefixedText();
1552 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
1553 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1555 $sk = $wgUser->getSkin();
1556 $loglink = $sk->makeKnownLink( $wgContLang->getNsText( NS_PROJECT
) .
1557 ':' . wfMsgForContent( 'dellogpage' ), wfMsg( 'deletionlog' ) );
1559 $text = wfMsg( 'deletedtext', $deleted, $loglink );
1561 $wgOut->addHTML( '<p>' . $text . "</p>\n" );
1562 $wgOut->returnToMain( false );
1564 $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
1569 * Back-end article deletion
1570 * Deletes the article with database consistency, writes logs, purges caches
1573 function doDeleteArticle( $reason ) {
1575 global $wgUseSquid, $wgDeferredUpdateList, $wgInternalServer;
1577 $fname = 'Article::doDeleteArticle';
1578 wfDebug( $fname."\n" );
1580 $dbw =& wfGetDB( DB_MASTER
);
1581 $ns = $this->mTitle
->getNamespace();
1582 $t = $this->mTitle
->getDBkey();
1583 $id = $this->mTitle
->getArticleID();
1585 if ( $t == '' ||
$id == 0 ) {
1589 $u = new SiteStatsUpdate( 0, 1, -$this->isCountable( $this->getContent( true ) ) );
1590 array_push( $wgDeferredUpdateList, $u );
1592 $linksTo = $this->mTitle
->getLinksTo();
1595 if ( $wgUseSquid ) {
1597 $this->mTitle
->getInternalURL(),
1598 $this->mTitle
->getInternalURL( 'history' )
1600 foreach ( $linksTo as $linkTo ) {
1601 $urls[] = $linkTo->getInternalURL();
1604 $u = new SquidUpdate( $urls );
1605 array_push( $wgDeferredUpdateList, $u );
1609 # Client and file cache invalidation
1610 Title
::touchArray( $linksTo );
1612 # Move article and history to the "archive" table
1613 $archiveTable = $dbw->tableName( 'archive' );
1614 $oldTable = $dbw->tableName( 'old' );
1615 $curTable = $dbw->tableName( 'cur' );
1616 $recentchangesTable = $dbw->tableName( 'recentchanges' );
1617 $linksTable = $dbw->tableName( 'links' );
1618 $brokenlinksTable = $dbw->tableName( 'brokenlinks' );
1620 $dbw->insertSelect( 'archive', 'cur',
1622 'ar_namespace' => 'cur_namespace',
1623 'ar_title' => 'cur_title',
1624 'ar_text' => 'cur_text',
1625 'ar_comment' => 'cur_comment',
1626 'ar_user' => 'cur_user',
1627 'ar_user_text' => 'cur_user_text',
1628 'ar_timestamp' => 'cur_timestamp',
1629 'ar_minor_edit' => 'cur_minor_edit',
1632 'cur_namespace' => $ns,
1637 $dbw->insertSelect( 'archive', 'old',
1639 'ar_namespace' => 'old_namespace',
1640 'ar_title' => 'old_title',
1641 'ar_text' => 'old_text',
1642 'ar_comment' => 'old_comment',
1643 'ar_user' => 'old_user',
1644 'ar_user_text' => 'old_user_text',
1645 'ar_timestamp' => 'old_timestamp',
1646 'ar_minor_edit' => 'old_minor_edit',
1647 'ar_flags' => 'old_flags'
1649 'old_namespace' => $ns,
1654 # Now that it's safely backed up, delete it
1656 $dbw->delete( 'cur', array( 'cur_namespace' => $ns, 'cur_title' => $t ), $fname );
1657 $dbw->delete( 'old', array( 'old_namespace' => $ns, 'old_title' => $t ), $fname );
1658 $dbw->delete( 'recentchanges', array( 'rc_namespace' => $ns, 'rc_title' => $t ), $fname );
1660 # Finally, clean up the link tables
1661 $t = $this->mTitle
->getPrefixedDBkey();
1663 Article
::onArticleDelete( $this->mTitle
);
1665 # Insert broken links
1666 $brokenLinks = array();
1667 foreach ( $linksTo as $titleObj ) {
1668 # Get article ID. Efficient because it was loaded into the cache by getLinksTo().
1669 $linkID = $titleObj->getArticleID();
1670 $brokenLinks[] = array( 'bl_from' => $linkID, 'bl_to' => $t );
1672 $dbw->insert( 'brokenlinks', $brokenLinks, $fname, 'IGNORE' );
1675 $dbw->delete( 'links', array( 'l_to' => $id ) );
1676 $dbw->delete( 'links', array( 'l_from' => $id ) );
1677 $dbw->delete( 'imagelinks', array( 'il_from' => $id ) );
1678 $dbw->delete( 'brokenlinks', array( 'bl_from' => $id ) );
1679 $dbw->delete( 'categorylinks', array( 'cl_from' => $id ) );
1682 $log = new LogPage( 'delete' );
1683 $log->addEntry( 'delete', $this->mTitle
, $reason );
1685 # Clear the cached article id so the interface doesn't act like we exist
1686 $this->mTitle
->resetArticleID( 0 );
1687 $this->mTitle
->mArticleID
= 0;
1692 * Revert a modification
1694 function rollback() {
1695 global $wgUser, $wgOut, $wgRequest;
1696 $fname = 'Article::rollback';
1698 if ( ! $wgUser->isAllowed('rollback') ) {
1699 $wgOut->sysopRequired();
1702 if ( wfReadOnly() ) {
1703 $wgOut->readOnlyPage( $this->getContent( true ) );
1706 $dbw =& wfGetDB( DB_MASTER
);
1708 # Enhanced rollback, marks edits rc_bot=1
1709 $bot = $wgRequest->getBool( 'bot' );
1711 # Replace all this user's current edits with the next one down
1712 $tt = $this->mTitle
->getDBKey();
1713 $n = $this->mTitle
->getNamespace();
1715 # Get the last editor, lock table exclusively
1716 $s = $dbw->selectRow( 'cur',
1717 array( 'cur_id','cur_user','cur_user_text','cur_comment' ),
1718 array( 'cur_title' => $tt, 'cur_namespace' => $n ),
1719 $fname, 'FOR UPDATE'
1721 if( $s === false ) {
1723 $wgOut->addHTML( wfMsg( 'notanarticle' ) );
1726 $ut = $dbw->strencode( $s->cur_user_text
);
1727 $uid = $s->cur_user
;
1730 $from = str_replace( '_', ' ', $wgRequest->getVal( 'from' ) );
1731 if( $from != $s->cur_user_text
) {
1732 $wgOut->setPageTitle(wfmsg('rollbackfailed'));
1733 $wgOut->addWikiText( wfMsg( 'alreadyrolled',
1734 htmlspecialchars( $this->mTitle
->getPrefixedText()),
1735 htmlspecialchars( $from ),
1736 htmlspecialchars( $s->cur_user_text
) ) );
1737 if($s->cur_comment
!= '') {
1739 wfMsg('editcomment',
1740 htmlspecialchars( $s->cur_comment
) ) );
1745 # Get the last edit not by this guy
1746 $s = $dbw->selectRow( 'old',
1747 array( 'old_text','old_user','old_user_text','old_timestamp','old_flags' ),
1749 'old_namespace' => $n,
1751 "old_user <> {$uid} OR old_user_text <> '{$ut}'"
1752 ), $fname, array( 'FOR UPDATE', 'USE INDEX' => 'name_title_timestamp' )
1754 if( $s === false ) {
1756 $wgOut->setPageTitle(wfMsg('rollbackfailed'));
1757 $wgOut->addHTML( wfMsg( 'cantrollback' ) );
1762 # Mark all reverted edits as bot
1763 $dbw->update( 'recentchanges',
1766 ), array( /* WHERE */
1768 "rc_timestamp > '{$s->old_timestamp}'",
1774 $newcomment = wfMsg( 'revertpage', $s->old_user_text
, $from );
1775 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
1776 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1777 $wgOut->addHTML( '<h2>' . htmlspecialchars( $newcomment ) . "</h2>\n<hr />\n" );
1778 $this->updateArticle( Article
::getRevisionText( $s ), $newcomment, 1, $this->mTitle
->userIsWatching(), $bot );
1779 Article
::onArticleEdit( $this->mTitle
);
1780 $wgOut->returnToMain( false );
1785 * Do standard deferred updates after page view
1788 function viewUpdates() {
1789 global $wgDeferredUpdateList;
1790 if ( 0 != $this->getID() ) {
1791 global $wgDisableCounters;
1792 if( !$wgDisableCounters ) {
1793 Article
::incViewCount( $this->getID() );
1794 $u = new SiteStatsUpdate( 1, 0, 0 );
1795 array_push( $wgDeferredUpdateList, $u );
1798 $u = new UserTalkUpdate( 0, $this->mTitle
->getNamespace(),
1799 $this->mTitle
->getDBkey() );
1800 array_push( $wgDeferredUpdateList, $u );
1804 * Do standard deferred updates after page edit.
1805 * Every 1000th edit, prune the recent changes table.
1807 * @param string $text
1809 function editUpdates( $text ) {
1810 global $wgDeferredUpdateList, $wgDBname, $wgMemc;
1811 global $wgMessageCache;
1814 if ( 0 == mt_rand( 0, 999 ) ) {
1815 $dbw =& wfGetDB( DB_MASTER
);
1816 $cutoff = $dbw->timestamp( time() - ( 7 * 86400 ) );
1817 $sql = "DELETE FROM recentchanges WHERE rc_timestamp < '{$cutoff}'";
1818 $dbw->query( $sql );
1820 $id = $this->getID();
1821 $title = $this->mTitle
->getPrefixedDBkey();
1822 $shortTitle = $this->mTitle
->getDBkey();
1824 $adj = $this->mCountAdjustment
;
1827 $u = new LinksUpdate( $id, $title );
1828 array_push( $wgDeferredUpdateList, $u );
1829 $u = new SiteStatsUpdate( 0, 1, $adj );
1830 array_push( $wgDeferredUpdateList, $u );
1831 $u = new SearchUpdate( $id, $title, $text );
1832 array_push( $wgDeferredUpdateList, $u );
1834 $u = new UserTalkUpdate( 1, $this->mTitle
->getNamespace(), $shortTitle );
1835 array_push( $wgDeferredUpdateList, $u );
1837 if ( $this->mTitle
->getNamespace() == NS_MEDIAWIKI
) {
1838 $wgMessageCache->replace( $shortTitle, $text );
1844 * @todo document this function
1846 * @param string $oldid Revision ID of this article revision
1848 function setOldSubtitle( $oldid=0 ) {
1849 global $wgLang, $wgOut, $wgUser;
1851 $td = $wgLang->timeanddate( $this->mTimestamp
, true );
1852 $sk = $wgUser->getSkin();
1853 $lnk = $sk->makeKnownLinkObj ( $this->mTitle
, wfMsg( 'currentrevisionlink' ) );
1854 $prevlink = $sk->makeKnownLinkObj( $this->mTitle
, wfMsg( 'previousrevision' ), 'direction=prev&oldid='.$oldid );
1855 $nextlink = $sk->makeKnownLinkObj( $this->mTitle
, wfMsg( 'nextrevision' ), 'direction=next&oldid='.$oldid );
1856 $r = wfMsg( 'revisionasofwithlink', $td, $lnk, $prevlink, $nextlink );
1857 $wgOut->setSubtitle( $r );
1861 * This function is called right before saving the wikitext,
1862 * so we can do things like signatures and links-in-context.
1864 * @param string $text
1866 function preSaveTransform( $text ) {
1867 global $wgParser, $wgUser;
1868 return $wgParser->preSaveTransform( $text, $this->mTitle
, $wgUser, ParserOptions
::newFromUser( $wgUser ) );
1871 /* Caching functions */
1874 * checkLastModified returns true if it has taken care of all
1875 * output to the client that is necessary for this request.
1876 * (that is, it has sent a cached version of the page)
1878 function tryFileCache() {
1879 static $called = false;
1881 wfDebug( " tryFileCache() -- called twice!?\n" );
1885 if($this->isFileCacheable()) {
1886 $touched = $this->mTouched
;
1887 if( $this->mTitle
->getPrefixedDBkey() == wfMsg( 'mainpage' ) ) {
1888 # Expire the main page quicker
1889 $expire = wfUnix2Timestamp( time() - 3600 );
1890 $touched = max( $expire, $touched );
1892 $cache = new CacheManager( $this->mTitle
);
1893 if($cache->isFileCacheGood( $touched )) {
1895 wfDebug( " tryFileCache() - about to load\n" );
1896 $cache->loadFromFileCache();
1899 wfDebug( " tryFileCache() - starting buffer\n" );
1900 ob_start( array(&$cache, 'saveToFileCache' ) );
1903 wfDebug( " tryFileCache() - not cacheable\n" );
1908 * Check if the page can be cached
1911 function isFileCacheable() {
1912 global $wgUser, $wgUseFileCache, $wgShowIPinHeader, $wgRequest;
1913 extract( $wgRequest->getValues( 'action', 'oldid', 'diff', 'redirect', 'printable' ) );
1915 return $wgUseFileCache
1916 and (!$wgShowIPinHeader)
1917 and ($this->getID() != 0)
1918 and ($wgUser->getId() == 0)
1919 and (!$wgUser->getNewtalk())
1920 and ($this->mTitle
->getNamespace() != NS_SPECIAL
)
1921 and (empty( $action ) ||
$action == 'view')
1922 and (!isset($oldid))
1924 and (!isset($redirect))
1925 and (!isset($printable))
1926 and (!$this->mRedirectedFrom
);
1930 * Loads cur_touched and returns a value indicating if it should be used
1933 function checkTouched() {
1934 $fname = 'Article::checkTouched';
1935 $id = $this->getID();
1936 $dbr =& $this->getDB();
1937 $s = $dbr->selectRow( 'cur', array( 'cur_touched', 'cur_is_redirect' ),
1938 array( 'cur_id' => $id ), $fname, $this->getSelectOptions() );
1939 if( $s !== false ) {
1940 $this->mTouched
= wfTimestamp(TS_MW
,$s->cur_touched
);
1941 return !$s->cur_is_redirect
;
1948 * Edit an article without doing all that other stuff
1950 * @param string $text text submitted
1951 * @param string $comment comment submitted
1952 * @param integer $minor whereas it's a minor modification
1954 function quickEdit( $text, $comment = '', $minor = 0 ) {
1956 $fname = 'Article::quickEdit';
1957 wfProfileIn( $fname );
1959 $dbw =& wfGetDB( DB_MASTER
);
1960 $ns = $this->mTitle
->getNamespace();
1961 $dbkey = $this->mTitle
->getDBkey();
1962 $encDbKey = $dbw->strencode( $dbkey );
1963 $timestamp = wfTimestampNow();
1966 $dbw->insertSelect( 'old', 'cur',
1968 'old_namespace' => 'cur_namespace',
1969 'old_title' => 'cur_title',
1970 'old_text' => 'cur_text',
1971 'old_comment' => 'cur_comment',
1972 'old_user' => 'cur_user',
1973 'old_user_text' => 'cur_user_text',
1974 'old_timestamp' => 'cur_timestamp',
1975 'inverse_timestamp' => '99999999999999-cur_timestamp',
1977 'cur_namespace' => $ns,
1978 'cur_title' => $dbkey,
1982 # Use the affected row count to determine if the article is new
1983 $numRows = $dbw->affectedRows();
1985 # Make an array of fields to be inserted
1987 'cur_text' => $text,
1988 'cur_timestamp' => $timestamp,
1989 'cur_user' => $wgUser->getID(),
1990 'cur_user_text' => $wgUser->getName(),
1991 'inverse_timestamp' => wfInvertTimestamp( $timestamp ),
1992 'cur_comment' => $comment,
1993 'cur_is_redirect' => $this->isRedirect( $text ) ?
1 : 0,
1994 'cur_minor_edit' => intval($minor),
1995 'cur_touched' => $dbw->timestamp($timestamp),
2000 $fields['cur_is_new'] = 0;
2001 $dbw->update( 'cur', $fields, array( 'cur_namespace' => $ns, 'cur_title' => $dbkey ), $fname );
2003 # Insert new article
2004 $fields['cur_is_new'] = 1;
2005 $fields['cur_namespace'] = $ns;
2006 $fields['cur_title'] = $dbkey;
2007 $fields['cur_random'] = $rand = wfRandom();
2008 $dbw->insert( 'cur', $fields, $fname );
2010 wfProfileOut( $fname );
2014 * Used to increment the view counter
2017 * @param integer $id article id
2019 function incViewCount( $id ) {
2020 $id = intval( $id );
2021 global $wgHitcounterUpdateFreq;
2023 $dbw =& wfGetDB( DB_MASTER
);
2024 $curTable = $dbw->tableName( 'cur' );
2025 $hitcounterTable = $dbw->tableName( 'hitcounter' );
2026 $acchitsTable = $dbw->tableName( 'acchits' );
2028 if( $wgHitcounterUpdateFreq <= 1 ){ //
2029 $dbw->query( "UPDATE $curTable SET cur_counter = cur_counter + 1 WHERE cur_id = $id" );
2033 # Not important enough to warrant an error page in case of failure
2034 $oldignore = $dbw->ignoreErrors( true );
2036 $dbw->query( "INSERT INTO $hitcounterTable (hc_id) VALUES ({$id})" );
2038 $checkfreq = intval( $wgHitcounterUpdateFreq/25 +
1 );
2039 if( (rand() %
$checkfreq != 0) or ($dbw->lastErrno() != 0) ){
2040 # Most of the time (or on SQL errors), skip row count check
2041 $dbw->ignoreErrors( $oldignore );
2045 $res = $dbw->query("SELECT COUNT(*) as n FROM $hitcounterTable");
2046 $row = $dbw->fetchObject( $res );
2047 $rown = intval( $row->n
);
2048 if( $rown >= $wgHitcounterUpdateFreq ){
2049 wfProfileIn( 'Article::incViewCount-collect' );
2050 $old_user_abort = ignore_user_abort( true );
2052 $dbw->query("LOCK TABLES $hitcounterTable WRITE");
2053 $dbw->query("CREATE TEMPORARY TABLE $acchitsTable TYPE=HEAP ".
2054 "SELECT hc_id,COUNT(*) AS hc_n FROM $hitcounterTable ".
2056 $dbw->query("DELETE FROM $hitcounterTable");
2057 $dbw->query('UNLOCK TABLES');
2058 $dbw->query("UPDATE $curTable,$acchitsTable SET cur_counter=cur_counter + hc_n ".
2059 'WHERE cur_id = hc_id');
2060 $dbw->query("DROP TABLE $acchitsTable");
2062 ignore_user_abort( $old_user_abort );
2063 wfProfileOut( 'Article::incViewCount-collect' );
2065 $dbw->ignoreErrors( $oldignore );
2069 * The onArticle*() functions are supposed to be a kind of hooks
2070 * which should be called whenever any of the specified actions
2073 * This is a good place to put code to clear caches, for instance.
2075 * This is called on page move and undelete, as well as edit
2077 * @param $title_obj a title object
2080 function onArticleCreate($title_obj) {
2081 global $wgUseSquid, $wgDeferredUpdateList;
2083 $titles = $title_obj->getBrokenLinksTo();
2086 if ( $wgUseSquid ) {
2087 $urls = $title_obj->getSquidURLs();
2088 foreach ( $titles as $linkTitle ) {
2089 $urls[] = $linkTitle->getInternalURL();
2091 $u = new SquidUpdate( $urls );
2092 array_push( $wgDeferredUpdateList, $u );
2095 # Clear persistent link cache
2096 LinkCache
::linksccClearBrokenLinksTo( $title_obj->getPrefixedDBkey() );
2099 function onArticleDelete($title_obj) {
2100 LinkCache
::linksccClearLinksTo( $title_obj->getArticleID() );
2102 function onArticleEdit($title_obj) {
2103 LinkCache
::linksccClearPage( $title_obj->getArticleID() );
2108 * Info about this page
2111 global $wgUser, $wgTitle, $wgOut, $wgAllowPageInfo;
2112 $fname = 'Article::info';
2114 if ( !$wgAllowPageInfo ) {
2115 $wgOut->errorpage( 'nosuchaction', 'nosuchactiontext' );
2119 $dbr =& $this->getDB();
2121 $basenamespace = $wgTitle->getNamespace() & (~
1);
2122 $cur_clause = array( 'cur_title' => $wgTitle->getDBkey(), 'cur_namespace' => $basenamespace );
2123 $old_clause = array( 'old_title' => $wgTitle->getDBkey(), 'old_namespace' => $basenamespace );
2124 $wl_clause = array( 'wl_title' => $wgTitle->getDBkey(), 'wl_namespace' => $basenamespace );
2125 $fullTitle = $wgTitle->makeName($basenamespace, $wgTitle->getDBKey());
2126 $wgOut->setPagetitle( $fullTitle );
2127 $wgOut->setSubtitle( wfMsg( 'infosubtitle' ));
2129 # first, see if the page exists at all.
2130 $exists = $dbr->selectField( 'cur', 'COUNT(*)', $cur_clause, $fname, $this->getSelectOptions() );
2132 $wgOut->addHTML( wfMsg('noarticletext') );
2134 $numwatchers = $dbr->selectField( 'watchlist', 'COUNT(*)', $wl_clause, $fname,
2135 $this->getSelectOptions() );
2136 $wgOut->addHTML( "<ul><li>" . wfMsg("numwatchers", $numwatchers) . '</li>' );
2137 $old = $dbr->selectField( 'old', 'COUNT(*)', $old_clause, $fname, $this->getSelectOptions() );
2138 $wgOut->addHTML( "<li>" . wfMsg('numedits', $old +
1) . '</li>');
2140 # to find number of distinct authors, we need to do some
2141 # funny stuff because of the cur/old table split:
2142 # - first, find the name of the 'cur' author
2143 # - then, find the number of *other* authors in 'old'
2146 $cur_author = $dbr->selectField( 'cur', 'cur_user_text', $cur_clause, $fname,
2147 $this->getSelectOptions() );
2149 # find number of 'old' authors excluding 'cur' author
2150 $authors = $dbr->selectField( 'old', 'COUNT(DISTINCT old_user_text)',
2151 $old_clause +
array( 'old_user_text<>' . $dbr->addQuotes( $cur_author ) ), $fname,
2152 $this->getSelectOptions() ) +
1;
2154 # now for the Talk page ...
2155 $cur_clause = array( 'cur_title' => $wgTitle->getDBkey(), 'cur_namespace' => $basenamespace+
1 );
2156 $old_clause = array( 'old_title' => $wgTitle->getDBkey(), 'old_namespace' => $basenamespace+
1 );
2159 $exists = $dbr->selectField( 'cur', 'COUNT(*)', $cur_clause, $fname, $this->getSelectOptions() );
2163 $old = $dbr->selectField( 'old', 'COUNT(*)', $old_clause, $fname, $this->getSelectOptions() );
2164 $wgOut->addHTML( '<li>' . wfMsg("numtalkedits", $old +
1) . '</li>');
2166 $wgOut->addHTML( '<li>' . wfMsg("numauthors", $authors) . '</li>' );
2170 $cur_author = $dbr->selectField( 'cur', 'cur_user_text', $cur_clause, $fname,
2171 $this->getSelectOptions() );
2172 $authors = $dbr->selectField( 'cur', 'COUNT(DISTINCT old_user_text)',
2173 $old_clause +
array( 'old_user_text<>' . $dbr->addQuotes( $cur_author ) ),
2174 $fname, $this->getSelectOptions() );
2176 $wgOut->addHTML( '<li>' . wfMsg('numtalkauthors', $authors) . '</li></ul>' );