4 # Class representing a Wikipedia article and history.
5 # See design.doc for an overview.
7 # Note: edit user interface and cache support functions have been
8 # moved to separate EditPage and CacheManager classes.
10 require_once ( 'CacheManager.php' );
11 include_once ( 'SpecialValidate.php' ) ;
13 $wgArticleCurContentFields = false;
14 $wgArticleOldContentFields = false;
17 /* private */ var $mContent, $mContentLoaded;
18 /* private */ var $mUser, $mTimestamp, $mUserText;
19 /* private */ var $mCounter, $mComment, $mCountAdjustment;
20 /* private */ var $mMinorEdit, $mRedirectedFrom;
21 /* private */ var $mTouched, $mFileCache, $mTitle;
22 /* private */ var $mId, $mTable;
23 /* private */ var $mForUpdate;
25 function Article( &$title ) {
26 $this->mTitle
=& $title;
30 /* private */ function clear() {
31 $this->mContentLoaded
= false;
32 $this->mCurID
= $this->mUser
= $this->mCounter
= -1; # Not loaded
33 $this->mRedirectedFrom
= $this->mUserText
=
34 $this->mTimestamp
= $this->mComment
= $this->mFileCache
= '';
35 $this->mCountAdjustment
= 0;
36 $this->mTouched
= '19700101000000';
37 $this->mForUpdate
= false;
40 # Get revision text associated with an old or archive row
41 # $row is usually an object from wfFetchRow(), both the flags and the text field must be included
42 /* static */ function getRevisionText( $row, $prefix = 'old_' ) {
44 $textField = $prefix . 'text';
45 $flagsField = $prefix . 'flags';
47 if ( isset( $row->$flagsField ) ) {
48 $flags = explode( ',', $row->$flagsField );
53 if ( isset( $row->$textField ) ) {
54 $text = $row->$textField;
59 if ( in_array( 'link', $flags ) ) {
61 $text = Article
::followLink( $text );
62 } elseif ( in_array( 'gzip', $flags ) ) {
63 # Deal with optional compression of archived pages.
64 # This can be done periodically via maintenance/compressOld.php, and
65 # as pages are saved if $wgCompressRevisions is set.
66 return gzinflate( $text );
71 /* static */ function compressRevisionText( &$text ) {
72 global $wgCompressRevisions;
73 if( !$wgCompressRevisions ) {
76 if( !function_exists( 'gzdeflate' ) ) {
77 wfDebug( "Article::compressRevisionText() -- no zlib support, not compressing\n" );
80 $text = gzdeflate( $text );
84 # Returns the text associated with a "link" type old table row
85 /* static */ function followLink( $link ) {
86 # Split the link into fields and values
87 $lines = explode( '\n', $link );
90 foreach ( $lines as $line ) {
92 if ( $line{0} == '#' ) {
96 if ( preg_match( '/^(.*?)\s*:\s*(.*)$/', $line, $matches ) ) {
97 $field = strtolower($matches[1]);
99 if ( $field == 'hash' ) {
101 } elseif ( $field == 'location' ) {
102 $locations[] = $value;
107 if ( $hash === '' ) {
111 # Look in each specified location for the text
113 foreach ( $locations as $location ) {
114 $text = Article
::fetchFromLocation( $location, $hash );
115 if ( $text !== false ) {
123 /* static */ function fetchFromLocation( $location, $hash ) {
124 global $wgLoadBalancer;
125 $fname = 'fetchFromLocation';
126 wfProfileIn( $fname );
128 $p = strpos( $location, ':' );
129 if ( $p === false ) {
130 wfProfileOut( $fname );
134 $type = substr( $location, 0, $p );
138 # MySQL locations are specified by mysql://<machineID>/<dbname>/<tblname>/<index>
139 # Machine ID 0 is the current connection
140 if ( preg_match( '/^mysql:\/\/(\d+)\/([A-Za-z_]+)\/([A-Za-z_]+)\/([A-Za-z_]+)$/',
141 $location, $matches ) ) {
142 $machineID = $matches[1];
143 $dbName = $matches[2];
144 $tblName = $matches[3];
145 $index = $matches[4];
146 if ( $machineID == 0 ) {
148 $db =& $this->getDB();
150 # Alternate connection
151 $db =& $wgLoadBalancer->getConnection( $machineID );
153 if ( array_key_exists( $machineId, $wgKnownMysqlServers ) ) {
154 # Try to open, return false on failure
155 $params = $wgKnownDBServers[$machineId];
156 $db = Database
::newFromParams( $params['server'], $params['user'], $params['password'],
157 $dbName, 1, DBO_IGNORE
);
160 if ( $db->isOpen() ) {
161 $index = $db->strencode( $index );
162 $res = $db->query( "SELECT blob_data FROM $dbName.$tblName " .
163 "WHERE blob_index='$index' " . $this->getSelectOptions(), $fname );
164 $row = $db->fetchObject( $res );
165 $text = $row->text_data
;
170 # File locations are of the form file://<filename>, relative to the current directory
171 if ( preg_match( '/^file:\/\/(.*)$', $location, $matches ) )
172 $filename = strstr( $location, 'file://' );
173 $text = @file_get_contents
( $matches[1] );
175 if ( $text !== false ) {
176 # Got text, now we need to interpret it
177 # The first line contains information about how to do this
178 $p = strpos( $text, '\n' );
179 $type = substr( $text, 0, $p );
180 $text = substr( $text, $p +
1 );
185 $text = gzinflate( $text );
188 $object = unserialize( $text );
189 $text = $object->getItem( $hash );
195 wfProfileOut( $fname );
199 # Note that getContent/loadContent may follow redirects if
200 # not told otherwise, and so may cause a change to mTitle.
202 # Return the text of this revision
203 function getContent( $noredir ) {
206 # Get variables from query string :P
207 $action = $wgRequest->getText( 'action', 'view' );
208 $section = $wgRequest->getText( 'section' );
210 $fname = 'Article::getContent';
211 wfProfileIn( $fname );
213 if ( 0 == $this->getID() ) {
214 if ( 'edit' == $action ) {
215 wfProfileOut( $fname );
216 return ''; # was "newarticletext", now moved above the box)
218 wfProfileOut( $fname );
219 return wfMsg( 'noarticletext' );
221 $this->loadContent( $noredir );
222 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
223 if ( $this->mTitle
->getNamespace() == NS_USER_TALK
&&
224 preg_match('/^\d{1,3}\.\d{1,3}.\d{1,3}\.\d{1,3}$/',$this->mTitle
->getText()) &&
227 wfProfileOut( $fname );
228 return $this->mContent
. "\n" .wfMsg('anontalkpagetext');
230 if($action=='edit') {
232 if($section=='new') {
233 wfProfileOut( $fname );
237 # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
238 # comments to be stripped as well)
239 $rv=$this->getSection($this->mContent
,$section);
240 wfProfileOut( $fname );
244 wfProfileOut( $fname );
245 return $this->mContent
;
250 # This function returns the text of a section, specified by a number ($section).
251 # A section is text under a heading like == Heading == or <h1>Heading</h1>, or
252 # the first section before any such heading (section 0).
254 # If a section contains subsections, these are also returned.
256 function getSection($text,$section) {
258 # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
259 # comments to be stripped as well)
261 $parser=new Parser();
262 $parser->mOutputType
=OT_WIKI
;
263 $striptext=$parser->strip($text, $striparray, true);
265 # now that we can be sure that no pseudo-sections are in the source,
266 # split it up by section
269 '/(^=+.*?=+|^<h[1-6].*?' . '>.*?<\/h[1-6].*?' . '>)/mi',
271 PREG_SPLIT_DELIM_CAPTURE
);
275 $headline=$secs[$section*2-1];
276 preg_match( '/^(=+).*?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>/mi',$headline,$matches);
279 # translate wiki heading into level
280 if(strpos($hlevel,'=')!==false) {
281 $hlevel=strlen($hlevel);
284 $rv=$headline. $secs[$section*2];
288 while(!empty($secs[$count*2-1]) && !$break) {
290 $subheadline=$secs[$count*2-1];
291 preg_match( '/^(=+).*?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>/mi',$subheadline,$matches);
292 $subhlevel=$matches[1];
293 if(strpos($subhlevel,'=')!==false) {
294 $subhlevel=strlen($subhlevel);
296 if($subhlevel > $hlevel) {
297 $rv.=$subheadline.$secs[$count*2];
299 if($subhlevel <= $hlevel) {
306 # reinsert stripped tags
307 $rv=$parser->unstrip($rv,$striparray);
308 $rv=$parser->unstripNoWiki($rv,$striparray);
314 # Return an array of the columns of the "cur"-table
315 function &getCurContentFields() {
316 global $wgArticleCurContentFields;
317 if ( !$wgArticleCurContentFields ) {
318 $wgArticleCurContentFields = array( 'cur_text','cur_timestamp','cur_user', 'cur_user_text',
319 'cur_comment','cur_counter','cur_restrictions','cur_touched' );
321 return $wgArticleCurContentFields;
324 # Return an array of the columns of the "old"-table
325 function &getOldContentFields() {
326 global $wgArticleOldContentFields;
327 if ( !$wgArticleOldContentFields ) {
328 $wgArticleOldContentFields = array( 'old_namespace','old_title','old_text','old_timestamp',
329 'old_user','old_user_text','old_comment','old_flags' );
331 return $wgArticleOldContentFields;
334 # Load the revision (including cur_text) into this object
335 function loadContent( $noredir = false ) {
336 global $wgOut, $wgMwRedir, $wgRequest;
338 $dbr =& $this->getDB();
340 $oldid = $wgRequest->getVal( 'oldid' );
341 $redirect = $wgRequest->getVal( 'redirect' );
343 if ( $this->mContentLoaded
) return;
344 $fname = 'Article::loadContent';
346 # Pre-fill content with error message so that if something
347 # fails we'll have something telling us what we intended.
349 $t = $this->mTitle
->getPrefixedText();
350 if ( isset( $oldid ) ) {
351 $oldid = IntVal( $oldid );
352 $t .= ',oldid='.$oldid;
354 if ( isset( $redirect ) ) {
355 $redirect = ($redirect == 'no') ?
'no' : 'yes';
356 $t .= ',redirect='.$redirect;
358 $this->mContent
= wfMsg( 'missingarticle', $t );
360 if ( ! $oldid ) { # Retrieve current version
361 $id = $this->getID();
362 if ( 0 == $id ) return;
364 $s = $dbr->selectRow( 'cur', $this->getCurContentFields(), array( 'cur_id' => $id ), $fname,
365 $this->getSelectOptions() );
366 if ( $s === false ) {
370 # If we got a redirect, follow it (unless we've been told
371 # not to by either the function parameter or the query
372 if ( ( 'no' != $redirect ) && ( false == $noredir ) ) {
373 $rt = Title
::newFromRedirect( $s->cur_text
);
374 # process if title object is valid and not special:userlogout
375 if ( $rt && ! ( $rt->getNamespace() == NS_SPECIAL
&& $rt->getText() == 'Userlogout' ) ) {
376 # Gotta hand redirects to special pages differently:
377 # Fill the HTTP response "Location" header and ignore
378 # the rest of the page we're on.
380 if ( $rt->getInterwiki() != '' ) {
381 $wgOut->redirect( $rt->getFullURL() ) ;
384 if ( $rt->getNamespace() == NS_SPECIAL
) {
385 $wgOut->redirect( $rt->getFullURL() );
388 $rid = $rt->getArticleID();
390 $redirRow = $dbr->selectRow( 'cur', $this->getCurContentFields(),
391 array( 'cur_id' => $rid ), $fname, $this->getSelectOptions() );
393 if ( $redirRow !== false ) {
394 $this->mRedirectedFrom
= $this->mTitle
->getPrefixedText();
402 $this->mContent
= $s->cur_text
;
403 $this->mUser
= $s->cur_user
;
404 $this->mUserText
= $s->cur_user_text
;
405 $this->mComment
= $s->cur_comment
;
406 $this->mCounter
= $s->cur_counter
;
407 $this->mTimestamp
= wfTimestamp(TS_MW
,$s->cur_timestamp
);
408 $this->mTouched
= wfTimestamp(TS_MW
,$s->cur_touched
);
409 $this->mTitle
->mRestrictions
= explode( ',', trim( $s->cur_restrictions
) );
410 $this->mTitle
->mRestrictionsLoaded
= true;
411 } else { # oldid set, retrieve historical version
412 $s = $dbr->getArray( 'old', $this->getOldContentFields(), array( 'old_id' => $oldid ),
413 $fname, $this->getSelectOptions() );
414 if ( $s === false ) {
418 if( $this->mTitle
->getNamespace() != $s->old_namespace ||
419 $this->mTitle
->getDBkey() != $s->old_title
) {
420 $oldTitle = Title
::makeTitle( $s->old_namesapce
, $s->old_title
);
421 $this->mTitle
= $oldTitle;
422 $wgTitle = $oldTitle;
424 $this->mContent
= Article
::getRevisionText( $s );
425 $this->mUser
= $s->old_user
;
426 $this->mUserText
= $s->old_user_text
;
427 $this->mComment
= $s->old_comment
;
429 $this->mTimestamp
= wfTimestamp(TS_MW
,$s->old_timestamp
);
431 $this->mContentLoaded
= true;
432 return $this->mContent
;
435 # Gets the article text without using so many damn globals
436 # Returns false on error
437 function getContentWithoutUsingSoManyDamnGlobals( $oldid = 0, $noredir = false ) {
440 if ( $this->mContentLoaded
) {
441 return $this->mContent
;
443 $this->mContent
= false;
445 $fname = 'Article::getContentWithout';
446 $dbr =& $this->getDB();
448 if ( ! $oldid ) { # Retrieve current version
449 $id = $this->getID();
454 $s = $dbr->selectRow( 'cur', $this->getCurContentFields(), array( 'cur_id' => $id ),
455 $fname, $this->getSelectOptions() );
456 if ( $s === false ) {
460 # If we got a redirect, follow it (unless we've been told
461 # not to by either the function parameter or the query
463 $rt = Title
::newFromRedirect( $s->cur_text
);
464 if( $rt && $rt->getInterwiki() == '' && $rt->getNamespace() != NS_SPECIAL
) {
465 $rid = $rt->getArticleID();
467 $redirRow = $dbr->selectRow( 'cur', $this->getCurContentFields(),
468 array( 'cur_id' => $rid ), $fname, $this->getSelectOptions() );
470 if ( $redirRow !== false ) {
471 $this->mRedirectedFrom
= $this->mTitle
->getPrefixedText();
479 $this->mContent
= $s->cur_text
;
480 $this->mUser
= $s->cur_user
;
481 $this->mUserText
= $s->cur_user_text
;
482 $this->mComment
= $s->cur_comment
;
483 $this->mCounter
= $s->cur_counter
;
484 $this->mTimestamp
= wfTimestamp(TS_MW
,$s->cur_timestamp
);
485 $this->mTouched
= wfTimestamp(TS_MW
,$s->cur_touched
);
486 $this->mTitle
->mRestrictions
= explode( ',', trim( $s->cur_restrictions
) );
487 $this->mTitle
->mRestrictionsLoaded
= true;
488 } else { # oldid set, retrieve historical version
489 $s = $dbr->selectRow( 'old', $this->getOldContentFields(), array( 'old_id' => $oldid ),
490 $fname, $this->getSelectOptions() );
491 if ( $s === false ) {
494 $this->mContent
= Article
::getRevisionText( $s );
495 $this->mUser
= $s->old_user
;
496 $this->mUserText
= $s->old_user_text
;
497 $this->mComment
= $s->old_comment
;
499 $this->mTimestamp
= wfTimestamp(TS_MW
,$s->old_timestamp
);
501 $this->mContentLoaded
= true;
502 return $this->mContent
;
505 # Read/write accessor to select FOR UPDATE
506 function forUpdate( $x = NULL ) {
507 return wfSetVar( $this->mForUpdate
, $x );
510 # Get the database which should be used for reads
512 if ( $this->mForUpdate
) {
513 return wfGetDB( DB_MASTER
);
515 return wfGetDB( DB_SLAVE
);
519 # Get options for all SELECT statements
520 # Can pass an option array, to which the class-wide options will be appended
521 function getSelectOptions( $options = '' ) {
522 if ( $this->mForUpdate
) {
524 $options[] = 'FOR UPDATE';
526 $options = 'FOR UPDATE';
533 if( $this->mTitle
) {
534 return $this->mTitle
->getArticleID();
540 function getCount() {
541 if ( -1 == $this->mCounter
) {
542 $id = $this->getID();
543 $dbr =& $this->getDB();
544 $this->mCounter
= $dbr->selectField( 'cur', 'cur_counter', 'cur_id='.$id,
545 'Article::getCount', $this->getSelectOptions() );
547 return $this->mCounter
;
550 # Would the given text make this article a "good" article (i.e.,
551 # suitable for including in the article count)?
552 function isCountable( $text ) {
553 global $wgUseCommaCount, $wgMwRedir;
555 if ( 0 != $this->mTitle
->getNamespace() ) { return 0; }
556 if ( $wgMwRedir->matchStart( $text ) ) { return 0; }
557 $token = ($wgUseCommaCount ?
',' : '[[' );
558 if ( false === strstr( $text, $token ) ) { return 0; }
562 # Loads everything from cur except cur_text
563 # This isn't necessary for all uses, so it's only done if needed.
564 /* private */ function loadLastEdit() {
566 if ( -1 != $this->mUser
) return;
568 $fname = 'Article::loadLastEdit';
570 $dbr =& $this->getDB();
571 $s = $dbr->getArray( 'cur',
572 array( 'cur_user','cur_user_text','cur_timestamp', 'cur_comment','cur_minor_edit' ),
573 array( 'cur_id' => $this->getID() ), $fname, $this->getSelectOptions() );
575 if ( $s !== false ) {
576 $this->mUser
= $s->cur_user
;
577 $this->mUserText
= $s->cur_user_text
;
578 $this->mTimestamp
= wfTimestamp(TS_MW
,$s->cur_timestamp
);
579 $this->mComment
= $s->cur_comment
;
580 $this->mMinorEdit
= $s->cur_minor_edit
;
584 function getTimestamp() {
585 $this->loadLastEdit();
586 return $this->mTimestamp
;
590 $this->loadLastEdit();
594 function getUserText() {
595 $this->loadLastEdit();
596 return $this->mUserText
;
599 function getComment() {
600 $this->loadLastEdit();
601 return $this->mComment
;
604 function getMinorEdit() {
605 $this->loadLastEdit();
606 return $this->mMinorEdit
;
609 function getContributors($limit = 0, $offset = 0) {
610 $fname = 'Article::getContributors';
612 # XXX: this is expensive; cache this info somewhere.
614 $title = $this->mTitle
;
616 $dbr =& $this->getDB();
617 $oldTable = $dbr->tableName( 'old' );
618 $userTable = $dbr->tableName( 'user' );
619 $encDBkey = $dbr->strencode( $title->getDBkey() );
620 $ns = $title->getNamespace();
621 $user = $this->getUser();
623 $sql = "SELECT old_user, old_user_text, user_real_name, MAX(old_timestamp) as timestamp
624 FROM $oldTable LEFT JOIN $userTable ON old_user = user_id
625 WHERE old_namespace = $user
626 AND old_title = $encDBkey
627 AND old_user != $user
629 ORDER BY timestamp DESC";
631 if ($limit > 0) { $sql .= ' LIMIT '.$limit; }
632 $sql .= ' '. $this->getSelectOptions();
634 $res = $dbr->query($sql, $fname);
636 while ( $line = $dbr->fetchObject( $res ) ) {
637 $contribs[] = array($line->old_user
, $line->old_user_text
, $line->user_real_name
);
640 $dbr->freeResult($res);
644 # This is the default action of the script: just view the page of
648 global $wgUser, $wgOut, $wgLang, $wgRequest, $wgMwRedir, $wgOnlySysopsCanPatrol;
649 global $wgLinkCache, $IP, $wgEnableParserCache, $wgStylePath, $wgUseRCPatrol;
650 $sk = $wgUser->getSkin();
652 $fname = 'Article::view';
653 wfProfileIn( $fname );
654 # Get variables from query string
655 $oldid = $wgRequest->getVal( 'oldid' );
656 $diff = $wgRequest->getVal( 'diff' );
657 $rcid = $wgRequest->getVal( 'rcid' );
659 $wgOut->setArticleFlag( true );
660 $wgOut->setRobotpolicy( 'index,follow' );
661 # If we got diff and oldid in the query, we want to see a
662 # diff page instead of the article.
664 if ( !is_null( $diff ) ) {
665 require_once( 'DifferenceEngine.php' );
666 $wgOut->setPageTitle( $this->mTitle
->getPrefixedText() );
667 $de = new DifferenceEngine( intval($oldid), intval($diff), intval($rcid) );
669 wfProfileOut( $fname );
671 # Run view updates for current revision only
672 $this->viewUpdates();
676 if ( empty( $oldid ) && $this->checkTouched() ) {
677 if( $wgOut->checkLastModified( $this->mTouched
) ){
679 } else if ( $this->tryFileCache() ) {
680 # tell wgOut that output is taken care of
682 $this->viewUpdates();
686 # Should the parser cache be used?
687 if ( $wgEnableParserCache && intval($wgUser->getOption( 'stubthreshold' )) == 0 && empty( $oldid ) ) {
695 if ( $wgOut->tryParserCache( $this, $wgUser ) ) {
699 if ( !$outputDone ) {
700 $text = $this->getContent( false ); # May change mTitle by following a redirect
702 # Another whitelist check in case oldid or redirects are altering the title
703 if ( !$this->mTitle
->userCanRead() ) {
704 $wgOut->loginToUse();
710 # We're looking at an old revision
712 if ( !empty( $oldid ) ) {
713 $this->setOldSubtitle();
714 $wgOut->setRobotpolicy( 'noindex,follow' );
716 if ( '' != $this->mRedirectedFrom
) {
717 $sk = $wgUser->getSkin();
718 $redir = $sk->makeKnownLink( $this->mRedirectedFrom
, '',
720 $s = wfMsg( 'redirectedfrom', $redir );
721 $wgOut->setSubtitle( $s );
723 # Can't cache redirects
727 # wrap user css and user js in pre and don't parse
728 # XXX: use $this->mTitle->usCssJsSubpage() when php is fixed/ a workaround is found
730 $this->mTitle
->getNamespace() == NS_USER
&&
731 preg_match('/\\/[\\w]+\\.(css|js)$/', $this->mTitle
->getDBkey())
733 $wgOut->addWikiText( wfMsg('clearyourcache'));
734 $wgOut->addHTML( '<pre>'.htmlspecialchars($this->mContent
)."\n</pre>" );
735 } else if ( $rt = Title
::newFromRedirect( $text ) ) {
737 $imageUrl = $wgStylePath.'/images/redirect.png';
738 $targetUrl = $rt->escapeLocalURL();
739 $titleText = htmlspecialchars( $rt->getPrefixedText() );
740 $link = $sk->makeLinkObj( $rt );
741 $wgOut->addHTML( '<img valign="center" src="'.$imageUrl.'">' .
742 '<span class="redirectText">'.$link.'</span>' );
743 } else if ( $pcache ) {
744 # Display content and save to parser cache
745 $wgOut->addPrimaryWikiText( $text, $this );
747 # Display content, don't attempt to save to parser cache
748 $wgOut->addWikiText( $text );
751 $wgOut->setPageTitle( $this->mTitle
->getPrefixedText() );
752 # If we have been passed an &rcid= parameter, we want to give the user a
753 # chance to mark this new article as patrolled.
754 if ( $wgUseRCPatrol && !is_null ( $rcid ) && $rcid != 0 && $wgUser->getID() != 0 &&
755 ( $wgUser->isSysop() ||
!$wgOnlySysopsCanPatrol ) )
757 $wgOut->addHTML( wfMsg ( 'markaspatrolledlink',
758 $sk->makeKnownLinkObj ( $this->mTitle
, wfMsg ( 'markaspatrolledtext' ),
759 'action=markpatrolled&rcid='.$rcid )
763 # Put link titles into the link cache
764 $wgOut->transformBuffer();
766 # Add link titles as META keywords
767 $wgOut->addMetaTags() ;
769 $this->viewUpdates();
770 wfProfileOut( $fname );
773 # Theoretically we could defer these whole insert and update
774 # functions for after display, but that's taking a big leap
775 # of faith, and we want to be able to report database
776 # errors at some point.
778 /* private */ function insertNewArticle( $text, $summary, $isminor, $watchthis ) {
779 global $wgOut, $wgUser, $wgMwRedir;
780 global $wgUseSquid, $wgDeferredUpdateList, $wgInternalServer;
782 $fname = 'Article::insertNewArticle';
784 $this->mCountAdjustment
= $this->isCountable( $text );
786 $ns = $this->mTitle
->getNamespace();
787 $ttl = $this->mTitle
->getDBkey();
788 $text = $this->preSaveTransform( $text );
789 if ( $wgMwRedir->matchStart( $text ) ) { $redir = 1; }
792 $now = wfTimestampNow();
793 $won = wfInvertTimestamp( $now );
795 $rand = number_format( mt_rand() / mt_getrandmax(), 12, '.', '' );
796 $dbw =& wfGetDB( DB_MASTER
);
798 $cur_id = $dbw->nextSequenceValue( 'cur_cur_id_seq' );
800 $isminor = ( $isminor && $wgUser->getID() ) ?
1 : 0;
802 $dbw->insertArray( 'cur', array(
804 'cur_namespace' => $ns,
807 'cur_comment' => $summary,
808 'cur_user' => $wgUser->getID(),
809 'cur_timestamp' => $dbw->timestamp($now),
810 'cur_minor_edit' => $isminor,
812 'cur_restrictions' => '',
813 'cur_user_text' => $wgUser->getName(),
814 'cur_is_redirect' => $redir,
816 'cur_random' => $rand,
817 'cur_touched' => $dbw->timestamp($now),
818 'inverse_timestamp' => $won,
821 $newid = $dbw->insertId();
822 $this->mTitle
->resetArticleID( $newid );
824 Article
::onArticleCreate( $this->mTitle
);
825 RecentChange
::notifyNew( $now, $this->mTitle
, $isminor, $wgUser, $summary );
828 if(!$this->mTitle
->userIsWatching()) $this->watch();
830 if ( $this->mTitle
->userIsWatching() ) {
835 # The talk page isn't in the regular link tables, so we need to update manually:
836 $talkns = $ns ^
1; # talk -> normal; normal -> talk
837 $dbw->updateArray( 'cur', array('cur_touched' => $dbw->timestamp($now) ),
838 array( 'cur_namespace' => $talkns, 'cur_title' => $ttl ), $fname );
840 # standard deferred updates
841 $this->editUpdates( $text );
843 $this->showArticle( $text, wfMsg( 'newarticle' ) );
847 /* Side effects: loads last edit */
848 function getTextOfLastEditWithSectionReplacedOrAdded($section, $text, $summary = '') {
849 $this->loadLastEdit();
850 $oldtext = $this->getContent( true );
851 if ($section != '') {
852 if($section=='new') {
853 if($summary) $subject="== {$summary} ==\n\n";
854 $text=$oldtext."\n\n".$subject.$text;
857 # strip NOWIKI etc. to avoid confusion (true-parameter causes HTML
858 # comments to be stripped as well)
860 $parser=new Parser();
861 $parser->mOutputType
=OT_WIKI
;
862 $oldtext=$parser->strip($oldtext, $striparray, true);
864 # now that we can be sure that no pseudo-sections are in the source,
866 # Unfortunately we can't simply do a preg_replace because that might
867 # replace the wrong section, so we have to use the section counter instead
868 $secs=preg_split('/(^=+.*?=+|^<h[1-6].*?' . '>.*?<\/h[1-6].*?' . '>)/mi',
869 $oldtext,-1,PREG_SPLIT_DELIM_CAPTURE
);
870 $secs[$section*2]=$text."\n\n"; // replace with edited
872 # section 0 is top (intro) section
875 # headline of old section - we need to go through this section
876 # to determine if there are any subsections that now need to
877 # be erased, as the mother section has been replaced with
878 # the text of all subsections.
879 $headline=$secs[$section*2-1];
880 preg_match( '/^(=+).*?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>/mi',$headline,$matches);
883 # determine headline level for wikimarkup headings
884 if(strpos($hlevel,'=')!==false) {
885 $hlevel=strlen($hlevel);
888 $secs[$section*2-1]=''; // erase old headline
891 while(!empty($secs[$count*2-1]) && !$break) {
893 $subheadline=$secs[$count*2-1];
895 '/^(=+).*?=+|^<h([1-6]).*?' . '>.*?<\/h[1-6].*?' . '>/mi',$subheadline,$matches);
896 $subhlevel=$matches[1];
897 if(strpos($subhlevel,'=')!==false) {
898 $subhlevel=strlen($subhlevel);
900 if($subhlevel > $hlevel) {
901 // erase old subsections
902 $secs[$count*2-1]='';
905 if($subhlevel <= $hlevel) {
913 $text=join('',$secs);
914 # reinsert the stuff that we stripped out earlier
915 $text=$parser->unstrip($text,$striparray);
916 $text=$parser->unstripNoWiki($text,$striparray);
923 function updateArticle( $text, $summary, $minor, $watchthis, $forceBot = false, $sectionanchor = '' ) {
924 global $wgOut, $wgUser;
925 global $wgDBtransactions, $wgMwRedir;
926 global $wgUseSquid, $wgInternalServer;
928 $fname = 'Article::updateArticle';
931 if ( $this->mMinorEdit
) { $me1 = 1; } else { $me1 = 0; }
932 if ( $minor && $wgUser->getID() ) { $me2 = 1; } else { $me2 = 0; }
933 if ( preg_match( "/^((" . $wgMwRedir->getBaseRegex() . ')[^\\n]+)/i', $text, $m ) ) {
935 $text = $m[1] . "\n"; # Remove all content but redirect
939 $text = $this->preSaveTransform( $text );
940 $dbw =& wfGetDB( DB_MASTER
);
942 # Update article, but only if changed.
944 # It's important that we either rollback or complete, otherwise an attacker could
945 # overwrite cur entries by sending precisely timed user aborts. Random bored users
946 # could conceivably have the same effect, especially if cur is locked for long periods.
947 if( $wgDBtransactions ) {
948 $dbw->query( 'BEGIN', $fname );
950 $userAbort = ignore_user_abort( true );
953 $oldtext = $this->getContent( true );
955 if ( 0 != strcmp( $text, $oldtext ) ) {
956 $this->mCountAdjustment
= $this->isCountable( $text )
957 - $this->isCountable( $oldtext );
958 $now = wfTimestampNow();
959 $won = wfInvertTimestamp( $now );
961 # First update the cur row
962 $dbw->updateArray( 'cur',
965 'cur_comment' => $summary,
966 'cur_minor_edit' => $me2,
967 'cur_user' => $wgUser->getID(),
968 'cur_timestamp' => $dbw->timestamp($now),
969 'cur_user_text' => $wgUser->getName(),
970 'cur_is_redirect' => $redir,
972 'cur_touched' => $dbw->timestamp($now),
973 'inverse_timestamp' => $won
974 ), array( /* WHERE */
975 'cur_id' => $this->getID(),
976 'cur_timestamp' => $dbw->timestamp($this->getTimestamp())
980 if( $dbw->affectedRows() == 0 ) {
981 /* Belated edit conflict! Run away!! */
984 # Now insert the previous revision into old
986 # This overwrites $oldtext if revision compression is on
987 $flags = Article
::compressRevisionText( $oldtext );
989 $dbw->insertArray( 'old',
991 'old_id' => $dbw->nextSequenceValue( 'old_old_id_seq' ),
992 'old_namespace' => $this->mTitle
->getNamespace(),
993 'old_title' => $this->mTitle
->getDBkey(),
994 'old_text' => $oldtext,
995 'old_comment' => $this->getComment(),
996 'old_user' => $this->getUser(),
997 'old_user_text' => $this->getUserText(),
998 'old_timestamp' => $dbw->timestamp($this->getTimestamp()),
999 'old_minor_edit' => $me1,
1000 'inverse_timestamp' => wfInvertTimestamp( $this->getTimestamp() ),
1001 'old_flags' => $flags,
1005 $oldid = $dbw->insertId();
1007 $bot = (int)($wgUser->isBot() ||
$forceBot);
1008 RecentChange
::notifyEdit( $now, $this->mTitle
, $me2, $wgUser, $summary,
1009 $oldid, $this->getTimestamp(), $bot );
1010 Article
::onArticleEdit( $this->mTitle
);
1014 if( $wgDBtransactions ) {
1015 $dbw->query( 'COMMIT', $fname );
1017 ignore_user_abort( $userAbort );
1022 if (!$this->mTitle
->userIsWatching()) $this->watch();
1024 if ( $this->mTitle
->userIsWatching() ) {
1028 # standard deferred updates
1029 $this->editUpdates( $text );
1033 # Template namespace
1034 # Purge all articles linking here
1035 if ( $this->mTitle
->getNamespace() == NS_TEMPLATE
) {
1036 $titles = $this->mTitle
->getLinksTo();
1037 Title
::touchArray( $titles );
1038 if ( $wgUseSquid ) {
1039 foreach ( $titles as $title ) {
1040 $urls[] = $title->getInternalURL();
1046 if ( $wgUseSquid ) {
1047 $urls = array_merge( $urls, $this->mTitle
->getSquidURLs() );
1048 $u = new SquidUpdate( $urls );
1052 $this->showArticle( $text, wfMsg( 'updated' ), $sectionanchor );
1057 # After we've either updated or inserted the article, update
1058 # the link tables and redirect to the new page.
1060 function showArticle( $text, $subtitle , $sectionanchor = '' ) {
1061 global $wgOut, $wgUser, $wgLinkCache;
1064 $wgLinkCache = new LinkCache();
1066 $wgLinkCache->forUpdate( true );
1068 # Get old version of link table to allow incremental link updates
1069 $wgLinkCache->preFill( $this->mTitle
);
1070 $wgLinkCache->clear();
1072 # Parse the text and replace links with placeholders
1073 $wgOut = new OutputPage();
1074 $wgOut->addWikiText( $text );
1076 # Look up the links in the DB and add them to the link cache
1077 $wgOut->transformBuffer( RLH_FOR_UPDATE
);
1079 if( $wgMwRedir->matchStart( $text ) )
1083 $wgOut->redirect( $this->mTitle
->getFullURL( $r ).$sectionanchor );
1088 function validate () {
1089 global $wgOut, $wgUseValidation;
1090 if( $wgUseValidation ) {
1091 $wgOut->setPagetitle( wfMsg( 'validate' ) . ': ' . $this->mTitle
->getPrefixedText() );
1092 $wgOut->setRobotpolicy( 'noindex,follow' );
1093 if( $this->mTitle
->getNamespace() != 0 ) {
1094 $wgOut->addHTML( wfMsg( 'val_validate_article_namespace_only' ) );
1097 $v = new Validation
;
1098 $v->validate_form( $this->mTitle
->getDBkey() );
1100 $wgOut->errorpage( 'nosuchaction', 'nosuchactiontext' );
1104 # Mark this particular edit as patrolled
1105 function markpatrolled() {
1106 global $wgOut, $wgRequest, $wgOnlySysopsCanPatrol, $wgUseRCPatrol, $wgUser;
1107 $wgOut->setRobotpolicy( 'noindex,follow' );
1109 if ( !$wgUseRCPatrol )
1111 $wgOut->errorpage( 'rcpatroldisabled', 'rcpatroldisabledtext' );
1114 if ( $wgUser->getID() == 0 )
1116 $wgOut->loginToUse();
1119 if ( $wgOnlySysopsCanPatrol && !$wgUser->isSysop() )
1121 $wgOut->sysopRequired();
1124 $rcid = $wgRequest->getVal( 'rcid' );
1125 if ( !is_null ( $rcid ) )
1127 RecentChange
::markPatrolled( $rcid );
1128 $wgOut->setPagetitle( wfMsg( 'markedaspatrolled' ) );
1129 $wgOut->addWikiText( wfMsg( 'markedaspatrolledtext' ) );
1130 $wgOut->returnToMain( true, $this->mTitle
->getPrefixedText() );
1134 $wgOut->errorpage( 'markedaspatrollederror', 'markedaspatrollederrortext' );
1139 # Add this page to my watchlist
1141 function watch( $add = true ) {
1142 global $wgUser, $wgOut, $wgLang;
1143 global $wgDeferredUpdateList;
1145 if ( 0 == $wgUser->getID() ) {
1146 $wgOut->errorpage( 'watchnologin', 'watchnologintext' );
1149 if ( wfReadOnly() ) {
1150 $wgOut->readOnlyPage();
1154 $wgUser->addWatch( $this->mTitle
);
1156 $wgUser->removeWatch( $this->mTitle
);
1158 $wgOut->setPagetitle( wfMsg( $add ?
'addedwatch' : 'removedwatch' ) );
1159 $wgOut->setRobotpolicy( 'noindex,follow' );
1161 $sk = $wgUser->getSkin() ;
1162 $link = $this->mTitle
->getPrefixedText();
1165 $text = wfMsg( 'addedwatchtext', $link );
1167 $text = wfMsg( 'removedwatchtext', $link );
1168 $wgOut->addWikiText( $text );
1170 $up = new UserUpdate();
1171 array_push( $wgDeferredUpdateList, $up );
1173 $wgOut->returnToMain( true, $this->mTitle
->getPrefixedText() );
1176 function unwatch() {
1177 $this->watch( false );
1182 function protect( $limit = 'sysop' ) {
1183 global $wgUser, $wgOut, $wgRequest;
1185 if ( ! $wgUser->isSysop() ) {
1186 $wgOut->sysopRequired();
1189 if ( wfReadOnly() ) {
1190 $wgOut->readOnlyPage();
1193 $id = $this->mTitle
->getArticleID();
1195 $wgOut->fatalError( wfMsg( 'badarticleerror' ) );
1199 $confirm = $wgRequest->getBool( 'wpConfirmProtect' ) && $wgRequest->wasPosted();
1200 $reason = $wgRequest->getText( 'wpReasonProtect' );
1203 $dbw =& wfGetDB( DB_MASTER
);
1204 $dbw->updateArray( 'cur',
1206 'cur_touched' => $dbw->timestamp(),
1207 'cur_restrictions' => (string)$limit
1208 ), array( /* WHERE */
1210 ), 'Article::protect'
1213 $log = new LogPage( wfMsg( 'protectlogpage' ), wfMsg( 'protectlogtext' ) );
1214 if ( $limit === '' ) {
1215 $log->addEntry( wfMsg( 'unprotectedarticle', $this->mTitle
->getPrefixedText() ), $reason );
1217 $log->addEntry( wfMsg( 'protectedarticle', $this->mTitle
->getPrefixedText() ), $reason );
1219 $wgOut->redirect( $this->mTitle
->getFullURL() );
1222 $reason = htmlspecialchars( wfMsg( 'protectreason' ) );
1223 return $this->confirmProtect( '', $reason, $limit );
1227 # Output protection confirmation dialog
1229 function confirmProtect( $par, $reason, $limit = 'sysop' ) {
1232 wfDebug( "Article::confirmProtect\n" );
1234 $sub = htmlspecialchars( $this->mTitle
->getPrefixedText() );
1235 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1240 if ( $limit === '' ) {
1241 $wgOut->setPageTitle( wfMsg( 'confirmunprotect' ) );
1242 $wgOut->setSubtitle( wfMsg( 'unprotectsub', $sub ) );
1243 $wgOut->addWikiText( wfMsg( 'confirmunprotecttext' ) );
1244 $check = htmlspecialchars( wfMsg( 'confirmunprotect' ) );
1245 $protcom = htmlspecialchars( wfMsg( 'unprotectcomment' ) );
1246 $formaction = $this->mTitle
->escapeLocalURL( 'action=unprotect' . $par );
1248 $wgOut->setPageTitle( wfMsg( 'confirmprotect' ) );
1249 $wgOut->setSubtitle( wfMsg( 'protectsub', $sub ) );
1250 $wgOut->addWikiText( wfMsg( 'confirmprotecttext' ) );
1251 $check = htmlspecialchars( wfMsg( 'confirmprotect' ) );
1252 $protcom = htmlspecialchars( wfMsg( 'protectcomment' ) );
1253 $formaction = $this->mTitle
->escapeLocalURL( 'action=protect' . $par );
1256 $confirm = htmlspecialchars( wfMsg( 'confirm' ) );
1259 <form id='protectconfirm' method='post' action=\"{$formaction}\">
1263 <label for='wpReasonProtect'>{$protcom}:</label>
1266 <input type='text' size='60' name='wpReasonProtect' id='wpReasonProtect' value=\"" . htmlspecialchars( $reason ) . "\" />
1274 <input type='checkbox' name='wpConfirmProtect' value='1' id='wpConfirmProtect' />
1277 <label for='wpConfirmProtect'>{$check}</label>
1283 <input type='submit' name='wpConfirmProtectB' value=\"{$confirm}\" />
1289 $wgOut->returnToMain( false );
1292 function unprotect() {
1293 return $this->protect( '' );
1296 # UI entry point for page deletion
1299 global $wgUser, $wgOut, $wgMessageCache, $wgRequest;
1300 $fname = 'Article::delete';
1301 $confirm = $wgRequest->getBool( 'wpConfirm' ) && $wgRequest->wasPosted();
1302 $reason = $wgRequest->getText( 'wpReason' );
1304 # This code desperately needs to be totally rewritten
1307 if ( ( ! $wgUser->isSysop() ) ) {
1308 $wgOut->sysopRequired();
1311 if ( wfReadOnly() ) {
1312 $wgOut->readOnlyPage();
1316 # Better double-check that it hasn't been deleted yet!
1317 $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
1318 if ( ( '' == trim( $this->mTitle
->getText() ) )
1319 or ( $this->mTitle
->getArticleId() == 0 ) ) {
1320 $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
1325 $this->doDelete( $reason );
1329 # determine whether this page has earlier revisions
1330 # and insert a warning if it does
1331 # we select the text because it might be useful below
1332 $dbr =& $this->getDB();
1333 $ns = $this->mTitle
->getNamespace();
1334 $title = $this->mTitle
->getDBkey();
1335 $old = $dbr->getArray( 'old',
1336 array( 'old_text', 'old_flags' ),
1338 'old_namespace' => $ns,
1339 'old_title' => $title,
1340 ), $fname, $this->getSelectOptions( array( 'ORDER BY' => 'inverse_timestamp' ) )
1343 if( $old !== false && !$confirm ) {
1344 $skin=$wgUser->getSkin();
1345 $wgOut->addHTML('<b>'.wfMsg('historywarning'));
1346 $wgOut->addHTML( $skin->historyLink() .'</b>');
1350 $s = $dbr->getArray( 'cur',
1351 array( 'cur_text' ),
1353 'cur_namespace' => $ns,
1354 'cur_title' => $title,
1355 ), $fname, $this->getSelectOptions()
1358 if( $s !== false ) {
1359 # if this is a mini-text, we can paste part of it into the deletion reason
1361 #if this is empty, an earlier revision may contain "useful" text
1363 if($s->cur_text
!= '') {
1367 $text = Article
::getRevisionText( $old );
1373 $length=strlen($text);
1375 # this should not happen, since it is not possible to store an empty, new
1376 # page. Let's insert a standard text in case it does, though
1377 if($length == 0 && $reason === '') {
1378 $reason = wfMsg('exblank');
1381 if($length < 500 && $reason === '') {
1383 # comment field=255, let's grep the first 150 to have some user
1385 $text=substr($text,0,150);
1386 # let's strip out newlines and HTML tags
1387 $text=preg_replace('/\"/',"'",$text);
1388 $text=preg_replace('/\</','<',$text);
1389 $text=preg_replace('/\>/','>',$text);
1390 $text=preg_replace("/[\n\r]/",'',$text);
1392 $reason=wfMsg('excontent'). " '".$text;
1394 $reason=wfMsg('exbeforeblank') . " '".$text;
1396 if($length>150) { $reason .= '...'; } # we've only pasted part of the text
1401 return $this->confirmDelete( '', $reason );
1404 # Output deletion confirmation dialog
1406 function confirmDelete( $par, $reason ) {
1409 wfDebug( "Article::confirmDelete\n" );
1411 $sub = htmlspecialchars( $this->mTitle
->getPrefixedText() );
1412 $wgOut->setSubtitle( wfMsg( 'deletesub', $sub ) );
1413 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1414 $wgOut->addWikiText( wfMsg( 'confirmdeletetext' ) );
1416 $formaction = $this->mTitle
->escapeLocalURL( 'action=delete' . $par );
1418 $confirm = htmlspecialchars( wfMsg( 'confirm' ) );
1419 $check = htmlspecialchars( wfMsg( 'confirmcheck' ) );
1420 $delcom = htmlspecialchars( wfMsg( 'deletecomment' ) );
1423 <form id='deleteconfirm' method='post' action=\"{$formaction}\">
1427 <label for='wpReason'>{$delcom}:</label>
1430 <input type='text' size='60' name='wpReason' id='wpReason' value=\"" . htmlspecialchars( $reason ) . "\" />
1438 <input type='checkbox' name='wpConfirm' value='1' id='wpConfirm' />
1441 <label for='wpConfirm'>{$check}</label>
1447 <input type='submit' name='wpConfirmB' value=\"{$confirm}\" />
1453 $wgOut->returnToMain( false );
1457 # Perform a deletion and output success or failure messages
1459 function doDelete( $reason ) {
1460 global $wgOut, $wgUser, $wgLang;
1461 $fname = 'Article::doDelete';
1462 wfDebug( $fname."\n" );
1464 if ( $this->doDeleteArticle( $reason ) ) {
1465 $deleted = $this->mTitle
->getPrefixedText();
1467 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
1468 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1470 $sk = $wgUser->getSkin();
1471 $loglink = $sk->makeKnownLink( $wgLang->getNsText( NS_WIKIPEDIA
) .
1472 ':' . wfMsg( 'dellogpage' ), wfMsg( 'deletionlog' ) );
1474 $text = wfMsg( 'deletedtext', $deleted, $loglink );
1476 $wgOut->addHTML( '<p>' . $text . "</p>\n" );
1477 $wgOut->returnToMain( false );
1479 $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
1483 # Back-end article deletion
1484 # Deletes the article with database consistency, writes logs, purges caches
1486 function doDeleteArticle( $reason ) {
1487 global $wgUser, $wgLang;
1488 global $wgUseSquid, $wgDeferredUpdateList, $wgInternalServer;
1490 $fname = 'Article::doDeleteArticle';
1491 wfDebug( $fname."\n" );
1493 $dbw =& wfGetDB( DB_MASTER
);
1494 $ns = $this->mTitle
->getNamespace();
1495 $t = $this->mTitle
->getDBkey();
1496 $id = $this->mTitle
->getArticleID();
1498 if ( $t == '' ||
$id == 0 ) {
1502 $u = new SiteStatsUpdate( 0, 1, -$this->isCountable( $this->getContent( true ) ) );
1503 array_push( $wgDeferredUpdateList, $u );
1505 $linksTo = $this->mTitle
->getLinksTo();
1508 if ( $wgUseSquid ) {
1510 $this->mTitle
->getInternalURL(),
1511 $this->mTitle
->getInternalURL( 'history' )
1513 foreach ( $linksTo as $linkTo ) {
1514 $urls[] = $linkTo->getInternalURL();
1517 $u = new SquidUpdate( $urls );
1518 array_push( $wgDeferredUpdateList, $u );
1522 # Client and file cache invalidation
1523 Title
::touchArray( $linksTo );
1525 # Move article and history to the "archive" table
1526 $archiveTable = $dbw->tableName( 'archive' );
1527 $oldTable = $dbw->tableName( 'old' );
1528 $curTable = $dbw->tableName( 'cur' );
1529 $recentchangesTable = $dbw->tableName( 'recentchanges' );
1530 $linksTable = $dbw->tableName( 'links' );
1531 $brokenlinksTable = $dbw->tableName( 'brokenlinks' );
1533 $dbw->insertSelect( 'archive', 'cur',
1535 'ar_namespace' => 'cur_namespace',
1536 'ar_title' => 'cur_title',
1537 'ar_text' => 'cur_text',
1538 'ar_comment' => 'cur_comment',
1539 'ar_user' => 'cur_user',
1540 'ar_user_text' => 'cur_user_text',
1541 'ar_timestamp' => 'cur_timestamp',
1542 'ar_minor_edit' => 'cur_minor_edit',
1545 'cur_namespace' => $ns,
1550 $dbw->insertSelect( 'archive', 'old',
1552 'ar_namespace' => 'old_namespace',
1553 'ar_title' => 'old_title',
1554 'ar_text' => 'old_text',
1555 'ar_comment' => 'old_comment',
1556 'ar_user' => 'old_user',
1557 'ar_user_text' => 'old_user_text',
1558 'ar_timestamp' => 'old_timestamp',
1559 'ar_minor_edit' => 'old_minor_edit',
1560 'ar_flags' => 'old_flags'
1562 'old_namespace' => $ns,
1567 # Now that it's safely backed up, delete it
1569 $dbw->delete( 'cur', array( 'cur_namespace' => $ns, 'cur_title' => $t ), $fname );
1570 $dbw->delete( 'old', array( 'old_namespace' => $ns, 'old_title' => $t ), $fname );
1571 $dbw->delete( 'recentchanges', array( 'rc_namespace' => $ns, 'rc_title' => $t ), $fname );
1573 # Finally, clean up the link tables
1574 $t = $this->mTitle
->getPrefixedDBkey();
1576 Article
::onArticleDelete( $this->mTitle
);
1578 # Insert broken links
1579 $brokenLinks = array();
1580 foreach ( $linksTo as $titleObj ) {
1581 # Get article ID. Efficient because it was loaded into the cache by getLinksTo().
1582 $linkID = $titleObj->getArticleID();
1583 $brokenLinks[] = array( 'bl_from' => $linkID, 'bl_to' => $t );
1585 $dbw->insert( 'brokenlinks', $brokenLinks, $fname, 'IGNORE' );
1588 $dbw->delete( 'links', array( 'l_to' => $id ) );
1589 $dbw->delete( 'links', array( 'l_from' => $id ) );
1590 $dbw->delete( 'imagelinks', array( 'il_from' => $id ) );
1591 $dbw->delete( 'brokenlinks', array( 'bl_from' => $id ) );
1592 $dbw->delete( 'categorylinks', array( 'cl_from' => $id ) );
1595 $log = new LogPage( wfMsg( 'dellogpage' ), wfMsg( 'dellogpagetext' ) );
1596 $art = $this->mTitle
->getPrefixedText();
1597 $log->addEntry( wfMsg( 'deletedarticle', $art ), $reason );
1599 # Clear the cached article id so the interface doesn't act like we exist
1600 $this->mTitle
->resetArticleID( 0 );
1601 $this->mTitle
->mArticleID
= 0;
1605 function rollback() {
1606 global $wgUser, $wgLang, $wgOut, $wgRequest;
1607 $fname = 'Article::rollback';
1609 if ( ! $wgUser->isSysop() ) {
1610 $wgOut->sysopRequired();
1613 if ( wfReadOnly() ) {
1614 $wgOut->readOnlyPage( $this->getContent( true ) );
1617 $dbw =& wfGetDB( DB_MASTER
);
1619 # Enhanced rollback, marks edits rc_bot=1
1620 $bot = $wgRequest->getBool( 'bot' );
1622 # Replace all this user's current edits with the next one down
1623 $tt = $this->mTitle
->getDBKey();
1624 $n = $this->mTitle
->getNamespace();
1626 # Get the last editor, lock table exclusively
1627 $s = $dbw->getArray( 'cur',
1628 array( 'cur_id','cur_user','cur_user_text','cur_comment' ),
1629 array( 'cur_title' => $tt, 'cur_namespace' => $n ),
1630 $fname, 'FOR UPDATE'
1632 if( $s === false ) {
1634 $wgOut->addHTML( wfMsg( 'notanarticle' ) );
1637 $ut = $dbw->strencode( $s->cur_user_text
);
1638 $uid = $s->cur_user
;
1641 $from = str_replace( '_', ' ', $wgRequest->getVal( 'from' ) );
1642 if( $from != $s->cur_user_text
) {
1643 $wgOut->setPageTitle(wfmsg('rollbackfailed'));
1644 $wgOut->addWikiText( wfMsg( 'alreadyrolled',
1645 htmlspecialchars( $this->mTitle
->getPrefixedText()),
1646 htmlspecialchars( $from ),
1647 htmlspecialchars( $s->cur_user_text
) ) );
1648 if($s->cur_comment
!= '') {
1650 wfMsg('editcomment',
1651 htmlspecialchars( $s->cur_comment
) ) );
1656 # Get the last edit not by this guy
1657 $s = $dbw->getArray( 'old',
1658 array( 'old_text','old_user','old_user_text','old_timestamp','old_flags' ),
1660 'old_namespace' => $n,
1662 "old_user <> {$uid} OR old_user_text <> '{$ut}'"
1663 ), $fname, array( 'FOR UPDATE', 'USE INDEX' => 'name_title_timestamp' )
1665 if( $s === false ) {
1667 $wgOut->setPageTitle(wfMsg('rollbackfailed'));
1668 $wgOut->addHTML( wfMsg( 'cantrollback' ) );
1673 # Mark all reverted edits as bot
1674 $dbw->updateArray( 'recentchanges',
1677 ), array( /* WHERE */
1679 "rc_timestamp > '{$s->old_timestamp}'",
1685 $newcomment = wfMsg( 'revertpage', $s->old_user_text
, $from );
1686 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
1687 $wgOut->setRobotpolicy( 'noindex,nofollow' );
1688 $wgOut->addHTML( '<h2>' . $newcomment . "</h2>\n<hr />\n" );
1689 $this->updateArticle( Article
::getRevisionText( $s ), $newcomment, 1, $this->mTitle
->userIsWatching(), $bot );
1690 Article
::onArticleEdit( $this->mTitle
);
1691 $wgOut->returnToMain( false );
1695 # Do standard deferred updates after page view
1697 /* private */ function viewUpdates() {
1698 global $wgDeferredUpdateList;
1699 if ( 0 != $this->getID() ) {
1700 global $wgDisableCounters;
1701 if( !$wgDisableCounters ) {
1702 Article
::incViewCount( $this->getID() );
1703 $u = new SiteStatsUpdate( 1, 0, 0 );
1704 array_push( $wgDeferredUpdateList, $u );
1707 $u = new UserTalkUpdate( 0, $this->mTitle
->getNamespace(),
1708 $this->mTitle
->getDBkey() );
1709 array_push( $wgDeferredUpdateList, $u );
1712 # Do standard deferred updates after page edit.
1713 # Every 1000th edit, prune the recent changes table.
1715 /* private */ function editUpdates( $text ) {
1716 global $wgDeferredUpdateList, $wgDBname, $wgMemc;
1717 global $wgMessageCache;
1720 if ( 0 == mt_rand( 0, 999 ) ) {
1721 $dbw =& wfGetDB( DB_MASTER
);
1722 $cutoff = wfUnix2Timestamp( time() - ( 7 * 86400 ) );
1723 $sql = "DELETE FROM recentchanges WHERE rc_timestamp < '{$cutoff}'";
1724 $dbw->query( $sql );
1726 $id = $this->getID();
1727 $title = $this->mTitle
->getPrefixedDBkey();
1728 $shortTitle = $this->mTitle
->getDBkey();
1730 $adj = $this->mCountAdjustment
;
1733 $u = new LinksUpdate( $id, $title );
1734 array_push( $wgDeferredUpdateList, $u );
1735 $u = new SiteStatsUpdate( 0, 1, $adj );
1736 array_push( $wgDeferredUpdateList, $u );
1737 $u = new SearchUpdate( $id, $title, $text );
1738 array_push( $wgDeferredUpdateList, $u );
1740 $u = new UserTalkUpdate( 1, $this->mTitle
->getNamespace(), $shortTitle );
1741 array_push( $wgDeferredUpdateList, $u );
1743 if ( $this->mTitle
->getNamespace() == NS_MEDIAWIKI
) {
1744 $wgMessageCache->replace( $shortTitle, $text );
1749 /* private */ function setOldSubtitle() {
1750 global $wgLang, $wgOut;
1752 $td = $wgLang->timeanddate( $this->mTimestamp
, true );
1753 $r = wfMsg( 'revisionasof', $td );
1754 $wgOut->setSubtitle( "({$r})" );
1757 # This function is called right before saving the wikitext,
1758 # so we can do things like signatures and links-in-context.
1760 function preSaveTransform( $text ) {
1761 global $wgParser, $wgUser;
1762 return $wgParser->preSaveTransform( $text, $this->mTitle
, $wgUser, ParserOptions
::newFromUser( $wgUser ) );
1765 /* Caching functions */
1767 # checkLastModified returns true if it has taken care of all
1768 # output to the client that is necessary for this request.
1769 # (that is, it has sent a cached version of the page)
1770 function tryFileCache() {
1771 static $called = false;
1773 wfDebug( " tryFileCache() -- called twice!?\n" );
1777 if($this->isFileCacheable()) {
1778 $touched = $this->mTouched
;
1779 if( $this->mTitle
->getPrefixedDBkey() == wfMsg( 'mainpage' ) ) {
1780 # Expire the main page quicker
1781 $expire = wfUnix2Timestamp( time() - 3600 );
1782 $touched = max( $expire, $touched );
1784 $cache = new CacheManager( $this->mTitle
);
1785 if($cache->isFileCacheGood( $touched )) {
1787 wfDebug( " tryFileCache() - about to load\n" );
1788 $cache->loadFromFileCache();
1791 wfDebug( " tryFileCache() - starting buffer\n" );
1792 ob_start( array(&$cache, 'saveToFileCache' ) );
1795 wfDebug( " tryFileCache() - not cacheable\n" );
1799 function isFileCacheable() {
1800 global $wgUser, $wgUseFileCache, $wgShowIPinHeader, $wgRequest;
1801 extract( $wgRequest->getValues( 'action', 'oldid', 'diff', 'redirect', 'printable' ) );
1803 return $wgUseFileCache
1804 and (!$wgShowIPinHeader)
1805 and ($this->getID() != 0)
1806 and ($wgUser->getId() == 0)
1807 and (!$wgUser->getNewtalk())
1808 and ($this->mTitle
->getNamespace() != NS_SPECIAL
)
1809 and (empty( $action ) ||
$action == 'view')
1810 and (!isset($oldid))
1812 and (!isset($redirect))
1813 and (!isset($printable))
1814 and (!$this->mRedirectedFrom
);
1817 # Loads cur_touched and returns a value indicating if it should be used
1818 function checkTouched() {
1819 $fname = 'Article::checkTouched';
1820 $id = $this->getID();
1821 $dbr =& $this->getDB();
1822 $s = $dbr->getArray( 'cur', array( 'cur_touched', 'cur_is_redirect' ),
1823 array( 'cur_id' => $id ), $fname, $this->getSelectOptions() );
1824 if( $s !== false ) {
1825 $this->mTouched
= wfTimestamp(TS_MW
,$s->cur_touched
);
1826 return !$s->cur_is_redirect
;
1832 # Edit an article without doing all that other stuff
1833 function quickEdit( $text, $comment = '', $minor = 0 ) {
1834 global $wgUser, $wgMwRedir;
1835 $fname = 'Article::quickEdit';
1836 wfProfileIn( $fname );
1838 $dbw =& wfGetDB( DB_MASTER
);
1839 $ns = $this->mTitle
->getNamespace();
1840 $dbkey = $this->mTitle
->getDBkey();
1841 $encDbKey = $dbw->strencode( $dbkey );
1842 $timestamp = wfTimestampNow();
1845 $dbw->insertSelect( 'old', 'cur',
1847 'old_namespace' => 'cur_namespace',
1848 'old_title' => 'cur_title',
1849 'old_text' => 'cur_text',
1850 'old_comment' => 'cur_comment',
1851 'old_user' => 'cur_user',
1852 'old_user_text' => 'cur_user_text',
1853 'old_timestamp' => 'cur_timestamp',
1854 'inverse_timestamp' => '99999999999999-cur_timestamp',
1856 'cur_namespace' => $ns,
1857 'cur_title' => $dbkey,
1861 # Use the affected row count to determine if the article is new
1862 $numRows = $dbw->affectedRows();
1864 # Make an array of fields to be inserted
1866 'cur_text' => $text,
1867 'cur_timestamp' => $timestamp,
1868 'cur_user' => $wgUser->getID(),
1869 'cur_user_text' => $wgUser->getName(),
1870 'inverse_timestamp' => wfInvertTimestamp( $timestamp ),
1871 'cur_comment' => $comment,
1872 'cur_is_redirect' => $wgMwRedir->matchStart( $text ) ?
1 : 0,
1873 'cur_minor_edit' => intval($minor),
1874 'cur_touched' => $dbw->timestamp($timestamp),
1879 $fields['cur_is_new'] = 0;
1880 $dbw->updateArray( 'cur', $fields, array( 'cur_namespace' => $ns, 'cur_title' => $dbkey ), $fname );
1882 # Insert new article
1883 $fields['cur_is_new'] = 1;
1884 $fields['cur_namespace'] = $ns;
1885 $fields['cur_title'] = $dbkey;
1886 $fields['cur_random'] = $rand = number_format( mt_rand() / mt_getrandmax(), 12, '.', '' );
1887 $dbw->insertArray( 'cur', $fields, $fname );
1889 wfProfileOut( $fname );
1892 /* static */ function incViewCount( $id ) {
1893 $id = intval( $id );
1894 global $wgHitcounterUpdateFreq;
1896 $dbw =& wfGetDB( DB_MASTER
);
1897 $curTable = $dbw->tableName( 'cur' );
1898 $hitcounterTable = $dbw->tableName( 'hitcounter' );
1899 $acchitsTable = $dbw->tableName( 'acchits' );
1901 if( $wgHitcounterUpdateFreq <= 1 ){ //
1902 $dbw->query( "UPDATE $curTable SET cur_counter = cur_counter + 1 WHERE cur_id = $id" );
1906 # Not important enough to warrant an error page in case of failure
1907 $oldignore = $dbw->ignoreErrors( true );
1909 $dbw->query( "INSERT INTO $hitcounterTable (hc_id) VALUES ({$id})" );
1911 $checkfreq = intval( $wgHitcounterUpdateFreq/25 +
1 );
1912 if( (rand() %
$checkfreq != 0) or ($dbw->lastErrno() != 0) ){
1913 # Most of the time (or on SQL errors), skip row count check
1914 $dbw->ignoreErrors( $oldignore );
1918 $res = $dbw->query("SELECT COUNT(*) as n FROM $hitcounterTable");
1919 $row = $dbw->fetchObject( $res );
1920 $rown = intval( $row->n
);
1921 if( $rown >= $wgHitcounterUpdateFreq ){
1922 wfProfileIn( 'Article::incViewCount-collect' );
1923 $old_user_abort = ignore_user_abort( true );
1925 $dbw->query("LOCK TABLES $hitcounterTable WRITE");
1926 $dbw->query("CREATE TEMPORARY TABLE $acchitsTable TYPE=HEAP ".
1927 "SELECT hc_id,COUNT(*) AS hc_n FROM $hitcounterTable ".
1929 $dbw->query("DELETE FROM $hitcounterTable");
1930 $dbw->query('UNLOCK TABLES');
1931 $dbw->query("UPDATE $curTable,$acchitsTable SET cur_counter=cur_counter + hc_n ".
1932 'WHERE cur_id = hc_id');
1933 $dbw->query("DROP TABLE $acchitsTable");
1935 ignore_user_abort( $old_user_abort );
1936 wfProfileOut( 'Article::incViewCount-collect' );
1938 $dbw->ignoreErrors( $oldignore );
1941 # The onArticle*() functions are supposed to be a kind of hooks
1942 # which should be called whenever any of the specified actions
1945 # This is a good place to put code to clear caches, for instance.
1947 # This is called on page move and undelete, as well as edit
1948 /* static */ function onArticleCreate($title_obj) {
1949 global $wgUseSquid, $wgDeferredUpdateList;
1951 $titles = $title_obj->getBrokenLinksTo();
1954 if ( $wgUseSquid ) {
1955 $urls = $title_obj->getSquidURLs();
1956 foreach ( $titles as $linkTitle ) {
1957 $urls[] = $linkTitle->getInternalURL();
1959 $u = new SquidUpdate( $urls );
1960 array_push( $wgDeferredUpdateList, $u );
1963 # Clear persistent link cache
1964 LinkCache
::linksccClearBrokenLinksTo( $title_obj->getPrefixedDBkey() );
1967 /* static */ function onArticleDelete($title_obj) {
1968 LinkCache
::linksccClearLinksTo( $title_obj->getArticleID() );
1971 /* static */ function onArticleEdit($title_obj) {
1972 LinkCache
::linksccClearPage( $title_obj->getArticleID() );
1976 # Info about this page
1979 global $wgUser, $wgTitle, $wgOut, $wgLang, $wgAllowPageInfo;
1980 $fname = 'Article::info';
1982 if ( !$wgAllowPageInfo ) {
1983 $wgOut->errorpage( 'nosuchaction', 'nosuchactiontext' );
1987 $dbr =& $this->getDB();
1989 $basenamespace = $wgTitle->getNamespace() & (~
1);
1990 $cur_clause = array( 'cur_title' => $wgTitle->getDBkey(), 'cur_namespace' => $basenamespace );
1991 $old_clause = array( 'old_title' => $wgTitle->getDBkey(), 'old_namespace' => $basenamespace );
1992 $wl_clause = array( 'wl_title' => $wgTitle->getDBkey(), 'wl_namespace' => $basenamespace );
1993 $fullTitle = $wgTitle->makeName($basenamespace, $wgTitle->getDBKey());
1994 $wgOut->setPagetitle( $fullTitle );
1995 $wgOut->setSubtitle( wfMsg( 'infosubtitle' ));
1997 # first, see if the page exists at all.
1998 $exists = $dbr->selectField( 'cur', 'COUNT(*)', $cur_clause, $fname, $this->getSelectOptions() );
2000 $wgOut->addHTML( wfMsg('noarticletext') );
2002 $numwatchers = $dbr->selectField( 'watchlist', 'COUNT(*)', $wl_clause, $fname,
2003 $this->getSelectOptions() );
2004 $wgOut->addHTML( "<ul><li>" . wfMsg("numwatchers", $numwatchers) . '</li>' );
2005 $old = $dbr->selectField( 'old', 'COUNT(*)', $old_clause, $fname, $this->getSelectOptions() );
2006 $wgOut->addHTML( "<li>" . wfMsg('numedits', $old +
1) . '</li>');
2008 # to find number of distinct authors, we need to do some
2009 # funny stuff because of the cur/old table split:
2010 # - first, find the name of the 'cur' author
2011 # - then, find the number of *other* authors in 'old'
2014 $cur_author = $dbr->selectField( 'cur', 'cur_user_text', $cur_clause, $fname,
2015 $this->getSelectOptions() );
2017 # find number of 'old' authors excluding 'cur' author
2018 $authors = $dbr->selectField( 'old', 'COUNT(DISTINCT old_user_text)',
2019 $old_clause +
array( 'old_user_text<>' . $dbr->addQuotes( $cur_author ) ), $fname,
2020 $this->getSelectOptions() ) +
1;
2022 # now for the Talk page ...
2023 $cur_clause = array( 'cur_title' => $wgTitle->getDBkey(), 'cur_namespace' => $basenamespace+
1 );
2024 $old_clause = array( 'old_title' => $wgTitle->getDBkey(), 'old_namespace' => $basenamespace+
1 );
2027 $exists = $dbr->selectField( 'cur', 'COUNT(*)', $cur_clause, $fname, $this->getSelectOptions() );
2031 $old = $dbr->selectField( 'old', 'COUNT(*)', $old_clause, $fname, $this->getSelectOptions() );
2032 $wgOut->addHTML( '<li>' . wfMsg("numtalkedits", $old +
1) . '</li>');
2034 $wgOut->addHTML( '<li>' . wfMsg("numauthors", $authors) . '</li>' );
2038 $cur_author = $dbr->selectField( 'cur', 'cur_user_text', $cur_clause, $fname,
2039 $this->getSelectOptions() );
2040 $authors = $dbr->selectField( 'cur', 'COUNT(DISTINCT old_user_text)',
2041 $old_clause +
array( 'old_user_text<>' . $dbr->addQuotes( $cur_author ) ),
2042 $fname, $this->getSelectOptions() );
2044 $wgOut->addHTML( '<li>' . wfMsg('numtalkauthors', $authors) . '</li></ul>' );