0b2b04a0716b868e932b0e04383fb72fc603a92c
2 # Class representing a Wikipedia article and history.
3 # See design.doc for an overview.
5 # Note: edit user interface and cache support functions have been
6 # moved to separate EditPage and CacheManager classes.
11 * s/\$wgTitle/\$this->mTitle/ performed, many replacements
12 * mTitle variable added to class
15 include_once( "CacheManager.php" );
18 /* private */ var $mContent, $mContentLoaded;
19 /* private */ var $mUser, $mTimestamp, $mUserText;
20 /* private */ var $mCounter, $mComment, $mCountAdjustment;
21 /* private */ var $mMinorEdit, $mRedirectedFrom;
22 /* private */ var $mTouched, $mFileCache, $mTitle;
24 function Article( &$title ) {
25 $this->mTitle
=& $title;
29 /* private */ function clear()
31 $this->mContentLoaded
= false;
32 $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";
39 # Note that getContent/loadContent may follow redirects if
40 # not told otherwise, and so may cause a change to mTitle.
42 function getContent( $noredir = false )
44 global $action,$section,$count; # From query string
45 $fname = "Article::getContent";
46 wfProfileIn( $fname );
48 if ( 0 == $this->getID() ) {
49 if ( "edit" == $action ) {
50 wfProfileOut( $fname );
51 return ""; # was "newarticletext", now moved above the box)
53 wfProfileOut( $fname );
54 return wfMsg( "noarticletext" );
56 $this->loadContent( $noredir );
59 # check if we're displaying a [[User talk:x.x.x.x]] anonymous talk page
60 ( $this->mTitle
->getNamespace() == Namespace::getTalk( Namespace::getUser()) ) &&
61 preg_match("/^\d{1,3}\.\d{1,3}.\d{1,3}\.\d{1,3}$/",$this->mTitle
->getText()) &&
65 wfProfileOut( $fname );
66 return $this->mContent
. "\n" .wfMsg("anontalkpagetext"); }
71 wfProfileOut( $fname );
75 $secs=preg_split("/(^=+.*?=+|^<h[1-6].*?>.*?<\/h[1-6].*?>)/mi",
77 PREG_SPLIT_DELIM_CAPTURE
);
79 wfProfileOut( $fname );
80 return trim($secs[0]);
82 wfProfileOut( $fname );
83 return trim($secs[$section*2-1] . $secs[$section*2]);
87 wfProfileOut( $fname );
88 return $this->mContent
;
93 function loadContent( $noredir = false )
95 global $wgOut, $wgMwRedir;
96 global $oldid, $redirect; # From query
98 if ( $this->mContentLoaded
) return;
99 $fname = "Article::loadContent";
101 # Pre-fill content with error message so that if something
102 # fails we'll have something telling us what we intended.
104 $t = $this->mTitle
->getPrefixedText();
105 if ( isset( $oldid ) ) {
106 $oldid = IntVal( $oldid );
107 $t .= ",oldid={$oldid}";
109 if ( isset( $redirect ) ) {
110 $redirect = ($redirect == "no") ?
"no" : "yes";
111 $t .= ",redirect={$redirect}";
113 $this->mContent
= wfMsg( "missingarticle", $t );
115 if ( ! $oldid ) { # Retrieve current version
116 $id = $this->getID();
117 if ( 0 == $id ) return;
120 "cur_text,cur_timestamp,cur_user,cur_counter,cur_restrictions,cur_touched " .
121 "FROM cur WHERE cur_id={$id}";
123 $res = wfQuery( $sql, DB_READ
, $fname );
124 if ( 0 == wfNumRows( $res ) ) {
128 $s = wfFetchObject( $res );
129 # If we got a redirect, follow it (unless we've been told
130 # not to by either the function parameter or the query
131 if ( ( "no" != $redirect ) && ( false == $noredir ) &&
132 ( $wgMwRedir->matchStart( $s->cur_text
) ) ) {
133 if ( preg_match( "/\\[\\[([^\\]\\|]+)[\\]\\|]/",
134 $s->cur_text
, $m ) ) {
135 $rt = Title
::newFromText( $m[1] );
137 # Gotta hand redirects to special pages differently:
138 # Fill the HTTP response "Location" header and ignore
139 # the rest of the page we're on.
141 if ( $rt->getInterwiki() != "" ) {
142 $wgOut->redirect( $rt->getFullURL() ) ;
145 if ( $rt->getNamespace() == Namespace::getSpecial() ) {
146 $wgOut->redirect( wfLocalUrl(
147 $rt->getPrefixedURL() ) );
150 $rid = $rt->getArticleID();
152 $sql = "SELECT cur_text,cur_timestamp,cur_user," .
153 "cur_counter,cur_restrictions,cur_touched FROM cur WHERE cur_id={$rid}";
154 $res = wfQuery( $sql, DB_READ
, $fname );
156 if ( 0 != wfNumRows( $res ) ) {
157 $this->mRedirectedFrom
= $this->mTitle
->getPrefixedText();
159 $s = wfFetchObject( $res );
165 $this->mContent
= $s->cur_text
;
166 $this->mUser
= $s->cur_user
;
167 $this->mCounter
= $s->cur_counter
;
168 $this->mTimestamp
= $s->cur_timestamp
;
169 $this->mTouched
= $s->cur_touched
;
170 $this->mTitle
->mRestrictions
= explode( ",", trim( $s->cur_restrictions
) );
171 $this->mTitle
->mRestrictionsLoaded
= true;
172 wfFreeResult( $res );
173 } else { # oldid set, retrieve historical version
174 $sql = "SELECT old_text,old_timestamp,old_user FROM old " .
175 "WHERE old_id={$oldid}";
176 $res = wfQuery( $sql, DB_READ
, $fname );
177 if ( 0 == wfNumRows( $res ) ) { return; }
179 $s = wfFetchObject( $res );
180 $this->mContent
= $s->old_text
;
181 $this->mUser
= $s->old_user
;
183 $this->mTimestamp
= $s->old_timestamp
;
184 wfFreeResult( $res );
186 $this->mContentLoaded
= true;
190 if( $this->mTitle
) {
191 return $this->mTitle
->getArticleID();
199 if ( -1 == $this->mCounter
) {
200 $id = $this->getID();
201 $this->mCounter
= wfGetSQL( "cur", "cur_counter", "cur_id={$id}" );
203 return $this->mCounter
;
206 # Would the given text make this article a "good" article (i.e.,
207 # suitable for including in the article count)?
209 function isCountable( $text )
211 global $wgUseCommaCount, $wgMwRedir;
213 if ( 0 != $this->mTitle
->getNamespace() ) { return 0; }
214 if ( $wgMwRedir->matchStart( $text ) ) { return 0; }
215 $token = ($wgUseCommaCount ?
"," : "[[" );
216 if ( false === strstr( $text, $token ) ) { return 0; }
220 # Load the field related to the last edit time of the article.
221 # This isn't necessary for all uses, so it's only done if needed.
223 /* private */ function loadLastEdit()
226 if ( -1 != $this->mUser
) return;
228 $sql = "SELECT cur_user,cur_user_text,cur_timestamp," .
229 "cur_comment,cur_minor_edit FROM cur WHERE " .
230 "cur_id=" . $this->getID();
231 $res = wfQuery( $sql, DB_READ
, "Article::loadLastEdit" );
233 if ( wfNumRows( $res ) > 0 ) {
234 $s = wfFetchObject( $res );
235 $this->mUser
= $s->cur_user
;
236 $this->mUserText
= $s->cur_user_text
;
237 $this->mTimestamp
= $s->cur_timestamp
;
238 $this->mComment
= $s->cur_comment
;
239 $this->mMinorEdit
= $s->cur_minor_edit
;
243 function getTimestamp()
245 $this->loadLastEdit();
246 return $this->mTimestamp
;
251 $this->loadLastEdit();
255 function getUserText()
257 $this->loadLastEdit();
258 return $this->mUserText
;
261 function getComment()
263 $this->loadLastEdit();
264 return $this->mComment
;
267 function getMinorEdit()
269 $this->loadLastEdit();
270 return $this->mMinorEdit
;
273 # This is the default action of the script: just view the page of
278 global $wgUser, $wgOut, $wgLang;
279 global $oldid, $diff; # From query
280 global $wgLinkCache, $IP;
281 $fname = "Article::view";
282 wfProfileIn( $fname );
284 $wgOut->setArticleFlag( true );
285 $wgOut->setRobotpolicy( "index,follow" );
287 # If we got diff and oldid in the query, we want to see a
288 # diff page instead of the article.
290 if ( isset( $diff ) ) {
291 $wgOut->setPageTitle( $this->mTitle
->getPrefixedText() );
292 $de = new DifferenceEngine( $oldid, $diff );
294 wfProfileOut( $fname );
298 if ( !isset( $oldid ) ) {
299 if( $this->checkTouched() ) {
300 $wgOut->checkLastModified( $this->mTouched
);
301 $this->tryFileCache();
305 $text = $this->getContent(); # May change mTitle
306 $wgOut->setPageTitle( $this->mTitle
->getPrefixedText() );
307 $wgOut->setHTMLTitle( $this->mTitle
->getPrefixedText() .
308 " - " . wfMsg( "wikititlesuffix" ) );
310 # We're looking at an old revision
313 $this->setOldSubtitle();
314 $wgOut->setRobotpolicy( "noindex,follow" );
316 if ( "" != $this->mRedirectedFrom
) {
317 $sk = $wgUser->getSkin();
318 $redir = $sk->makeKnownLink( $this->mRedirectedFrom
, "",
320 $s = wfMsg( "redirectedfrom", $redir );
321 $wgOut->setSubtitle( $s );
323 $wgLinkCache->preFill( $this->mTitle
);
324 $wgOut->addWikiText( $text );
326 $this->viewUpdates();
327 wfProfileOut( $fname );
330 # Theoretically we could defer these whole insert and update
331 # functions for after display, but that's taking a big leap
332 # of faith, and we want to be able to report database
333 # errors at some point.
335 /* private */ function insertNewArticle( $text, $summary, $isminor, $watchthis )
337 global $wgOut, $wgUser, $wgLinkCache, $wgMwRedir;
338 global $wgEnablePersistentLC;
340 $fname = "Article::insertNewArticle";
342 $this->mCountAdjustment
= $this->isCountable( $text );
344 $ns = $this->mTitle
->getNamespace();
345 $ttl = $this->mTitle
->getDBkey();
346 $text = $this->preSaveTransform( $text );
347 if ( $wgMwRedir->matchStart( $text ) ) { $redir = 1; }
350 $now = wfTimestampNow();
351 $won = wfInvertTimestamp( $now );
353 $rand = number_format( mt_rand() / mt_getrandmax(), 12, ".", "" );
354 $sql = "INSERT INTO cur (cur_namespace,cur_title,cur_text," .
355 "cur_comment,cur_user,cur_timestamp,cur_minor_edit,cur_counter," .
356 "cur_restrictions,cur_user_text,cur_is_redirect," .
357 "cur_is_new,cur_random,cur_touched,inverse_timestamp) VALUES ({$ns},'" . wfStrencode( $ttl ) . "', '" .
358 wfStrencode( $text ) . "', '" .
359 wfStrencode( $summary ) . "', '" .
360 $wgUser->getID() . "', '{$now}', " .
361 ( $isminor ?
1 : 0 ) . ", 0, '', '" .
362 wfStrencode( $wgUser->getName() ) . "', $redir, 1, $rand, '{$now}', '{$won}')";
363 $res = wfQuery( $sql, DB_WRITE
, $fname );
365 $newid = wfInsertId();
366 $this->mTitle
->resetArticleID( $newid );
368 if ( $wgEnablePersistentLC ) {
369 // Purge related entries in links cache on new page, to heal broken links
370 $ptitle = wfStrencode( $ttl );
371 wfQuery("DELETE linkscc FROM linkscc,brokenlinks ".
372 "WHERE lcc_pageid=bl_from AND bl_to='{$ptitle}'", DB_WRITE
);
375 $sql = "INSERT INTO recentchanges (rc_timestamp,rc_cur_time," .
376 "rc_namespace,rc_title,rc_new,rc_minor,rc_cur_id,rc_user," .
377 "rc_user_text,rc_comment,rc_this_oldid,rc_last_oldid,rc_bot) VALUES (" .
378 "'{$now}','{$now}',{$ns},'" . wfStrencode( $ttl ) . "',1," .
379 ( $isminor ?
1 : 0 ) . ",{$newid}," . $wgUser->getID() . ",'" .
380 wfStrencode( $wgUser->getName() ) . "','" .
381 wfStrencode( $summary ) . "',0,0," .
382 ( $wgUser->isBot() ?
1 : 0 ) . ")";
383 wfQuery( $sql, DB_WRITE
, $fname );
385 if(!$this->mTitle
->userIsWatching()) $this->watch();
387 if ( $this->mTitle
->userIsWatching() ) {
392 # The talk page isn't in the regular link tables, so we need to update manually:
393 $talkns = $ns ^
1; # talk -> normal; normal -> talk
394 $sql = "UPDATE cur set cur_touched='$now' WHERE cur_namespace=$talkns AND cur_title='" . wfStrencode( $ttl ) . "'";
395 wfQuery( $sql, DB_WRITE
);
397 $this->showArticle( $text, wfMsg( "newarticle" ) );
400 function updateArticle( $text, $summary, $minor, $watchthis, $section = "")
402 global $wgOut, $wgUser, $wgLinkCache;
403 global $wgDBtransactions, $wgMwRedir;
404 $fname = "Article::updateArticle";
406 $this->loadLastEdit();
408 // insert updated section into old text if we have only edited part
410 if ($section != "") {
411 $oldtext=$this->getContent();
412 if($section=="new") {
413 if($summary) $subject="== {$summary} ==\n\n";
414 $text=$oldtext."\n\n".$subject.$text;
416 $secs=preg_split("/(^=+.*?=+|^<h[1-6].*?>.*?<\/h[1-6].*?>)/mi",
417 $oldtext,-1,PREG_SPLIT_DELIM_CAPTURE
);
418 $secs[$section*2]=$text."\n\n"; // replace with edited
419 if($section) { $secs[$section*2-1]=""; } // erase old headline
420 $text=join("",$secs);
423 if ( $this->mMinorEdit
) { $me1 = 1; } else { $me1 = 0; }
424 if ( $minor ) { $me2 = 1; } else { $me2 = 0; }
425 if ( preg_match( "/^((" . $wgMwRedir->getBaseRegex() . ")[^\\n]+)/i", $text, $m ) ) {
427 $text = $m[1] . "\n"; # Remove all content but redirect
431 $text = $this->preSaveTransform( $text );
433 # Update article, but only if changed.
435 if( $wgDBtransactions ) {
437 wfQuery( $sql, DB_WRITE
);
439 $oldtext = $this->getContent( true );
441 if ( 0 != strcmp( $text, $oldtext ) ) {
442 $this->mCountAdjustment
= $this->isCountable( $text )
443 - $this->isCountable( $oldtext );
445 $now = wfTimestampNow();
446 $won = wfInvertTimestamp( $now );
447 $sql = "UPDATE cur SET cur_text='" . wfStrencode( $text ) .
448 "',cur_comment='" . wfStrencode( $summary ) .
449 "',cur_minor_edit={$me2}, cur_user=" . $wgUser->getID() .
450 ",cur_timestamp='{$now}',cur_user_text='" .
451 wfStrencode( $wgUser->getName() ) .
452 "',cur_is_redirect={$redir}, cur_is_new=0, cur_touched='{$now}', inverse_timestamp='{$won}' " .
453 "WHERE cur_id=" . $this->getID() .
454 " AND cur_timestamp='" . $this->getTimestamp() . "'";
455 $res = wfQuery( $sql, DB_WRITE
, $fname );
457 if( wfAffectedRows() == 0 ) {
458 /* Belated edit conflict! Run away!! */
462 $sql = "INSERT INTO old (old_namespace,old_title,old_text," .
463 "old_comment,old_user,old_user_text,old_timestamp," .
464 "old_minor_edit,inverse_timestamp) VALUES (" .
465 $this->mTitle
->getNamespace() . ", '" .
466 wfStrencode( $this->mTitle
->getDBkey() ) . "', '" .
467 wfStrencode( $oldtext ) . "', '" .
468 wfStrencode( $this->getComment() ) . "', " .
469 $this->getUser() . ", '" .
470 wfStrencode( $this->getUserText() ) . "', '" .
471 $this->getTimestamp() . "', " . $me1 . ", '" .
472 wfInvertTimestamp( $this->getTimestamp() ) . "')";
473 $res = wfQuery( $sql, DB_WRITE
, $fname );
474 $oldid = wfInsertID( $res );
476 $sql = "INSERT INTO recentchanges (rc_timestamp,rc_cur_time," .
477 "rc_namespace,rc_title,rc_new,rc_minor,rc_bot,rc_cur_id,rc_user," .
478 "rc_user_text,rc_comment,rc_this_oldid,rc_last_oldid) VALUES (" .
479 "'{$now}','{$now}'," . $this->mTitle
->getNamespace() . ",'" .
480 wfStrencode( $this->mTitle
->getDBkey() ) . "',0,{$me2}," .
481 ( $wgUser->isBot() ?
1 : 0 ) . "," .
482 $this->getID() . "," . $wgUser->getID() . ",'" .
483 wfStrencode( $wgUser->getName() ) . "','" .
484 wfStrencode( $summary ) . "',0,{$oldid})";
485 wfQuery( $sql, DB_WRITE
, $fname );
487 $sql = "UPDATE recentchanges SET rc_this_oldid={$oldid} " .
488 "WHERE rc_namespace=" . $this->mTitle
->getNamespace() . " AND " .
489 "rc_title='" . wfStrencode( $this->mTitle
->getDBkey() ) . "' AND " .
490 "rc_timestamp='" . $this->getTimestamp() . "'";
491 wfQuery( $sql, DB_WRITE
, $fname );
493 $sql = "UPDATE recentchanges SET rc_cur_time='{$now}' " .
494 "WHERE rc_cur_id=" . $this->getID();
495 wfQuery( $sql, DB_WRITE
, $fname );
497 global $wgEnablePersistentLC;
498 if ( $wgEnablePersistentLC ) {
500 // Purge link cache for this page
501 $pageid=$this->getID();
502 wfQuery("DELETE FROM linkscc WHERE lcc_pageid='{$pageid}'", DB_WRITE
);
504 // This next query just makes sure stub colored links to this page
505 // are updated correctly (I think). If performance is more important
506 // than real-time updating of stub links, we really should skip
508 wfQuery("DELETE linkscc FROM linkscc,links ".
509 "WHERE lcc_title=links.l_from AND l_to={$pageid}", DB_WRITE
);
513 if( $wgDBtransactions ) {
515 wfQuery( $sql, DB_WRITE
);
519 if (!$this->mTitle
->userIsWatching()) $this->watch();
521 if ( $this->mTitle
->userIsWatching() ) {
526 $this->showArticle( $text, wfMsg( "updated" ) );
530 # After we've either updated or inserted the article, update
531 # the link tables and redirect to the new page.
533 function showArticle( $text, $subtitle )
535 global $wgOut, $wgUser, $wgLinkCache, $wgUseBetterLinksUpdate;
538 $wgLinkCache = new LinkCache();
540 # Get old version of link table to allow incremental link updates
541 if ( $wgUseBetterLinksUpdate ) {
542 $wgLinkCache->preFill( $this->mTitle
);
543 $wgLinkCache->clear();
546 # Now update the link cache by parsing the text
547 $wgOut = new OutputPage();
548 $wgOut->addWikiText( $text );
550 $this->editUpdates( $text );
551 if( $wgMwRedir->matchStart( $text ) )
555 $wgOut->redirect( wfLocalUrl( $this->mTitle
->getPrefixedURL(), $r ) );
558 # Add this page to my watchlist
560 function watch( $add = true )
562 global $wgUser, $wgOut, $wgLang;
563 global $wgDeferredUpdateList;
565 if ( 0 == $wgUser->getID() ) {
566 $wgOut->errorpage( "watchnologin", "watchnologintext" );
569 if ( wfReadOnly() ) {
570 $wgOut->readOnlyPage();
574 $wgUser->addWatch( $this->mTitle
);
576 $wgUser->removeWatch( $this->mTitle
);
578 $wgOut->setPagetitle( wfMsg( $add ?
"addedwatch" : "removedwatch" ) );
579 $wgOut->setRobotpolicy( "noindex,follow" );
581 $sk = $wgUser->getSkin() ;
582 $link = $sk->makeKnownLink ( $this->mTitle
->getPrefixedText() ) ;
585 $text = wfMsg( "addedwatchtext", $link );
587 $text = wfMsg( "removedwatchtext", $link );
588 $wgOut->addHTML( $text );
590 $up = new UserUpdate();
591 array_push( $wgDeferredUpdateList, $up );
593 $wgOut->returnToMain( false );
598 $this->watch( false );
601 # This shares a lot of issues (and code) with Recent Changes
605 global $wgUser, $wgOut, $wgLang, $offset, $limit;
607 # If page hasn't changed, client can cache this
609 $wgOut->checkLastModified( $this->getTimestamp() );
610 $fname = "Article::history";
611 wfProfileIn( $fname );
613 $wgOut->setPageTitle( $this->mTitle
->getPRefixedText() );
614 $wgOut->setSubtitle( wfMsg( "revhistory" ) );
615 $wgOut->setArticleFlag( false );
616 $wgOut->setRobotpolicy( "noindex,nofollow" );
618 if( $this->mTitle
->getArticleID() == 0 ) {
619 $wgOut->addHTML( wfMsg( "nohistory" ) );
620 wfProfileOut( $fname );
624 $offset = (int)$offset;
625 $limit = (int)$limit;
626 if( $limit == 0 ) $limit = 50;
627 $namespace = $this->mTitle
->getNamespace();
628 $title = $this->mTitle
->getText();
629 $sql = "SELECT old_id,old_user," .
630 "old_comment,old_user_text,old_timestamp,old_minor_edit ".
631 "FROM old USE INDEX (name_title_timestamp) " .
632 "WHERE old_namespace={$namespace} AND " .
633 "old_title='" . wfStrencode( $this->mTitle
->getDBkey() ) . "' " .
634 "ORDER BY inverse_timestamp LIMIT $offset, $limit";
635 $res = wfQuery( $sql, DB_READ
, "Article::history" );
637 $revs = wfNumRows( $res );
638 if( $this->mTitle
->getArticleID() == 0 ) {
639 $wgOut->addHTML( wfMsg( "nohistory" ) );
640 wfProfileOut( $fname );
644 $sk = $wgUser->getSkin();
645 $numbar = wfViewPrevNext(
647 $this->mTitle
->getPrefixedText(),
650 $s .= $sk->beginHistoryList();
653 $s .= $sk->historyLine( $this->getTimestamp(), $this->getUser(),
654 $this->getUserText(), $namespace,
655 $title, 0, $this->getComment(),
656 ( $this->getMinorEdit() > 0 ) );
658 $revs = wfNumRows( $res );
659 while ( $line = wfFetchObject( $res ) ) {
660 $s .= $sk->historyLine( $line->old_timestamp
, $line->old_user
,
661 $line->old_user_text
, $namespace,
662 $title, $line->old_id
,
663 $line->old_comment
, ( $line->old_minor_edit
> 0 ) );
665 $s .= $sk->endHistoryList();
667 $wgOut->addHTML( $s );
668 wfProfileOut( $fname );
671 function protect( $limit = "sysop" )
673 global $wgUser, $wgOut;
675 if ( ! $wgUser->isSysop() ) {
676 $wgOut->sysopRequired();
679 if ( wfReadOnly() ) {
680 $wgOut->readOnlyPage();
683 $id = $this->mTitle
->getArticleID();
685 $wgOut->fatalEror( wfMsg( "badarticleerror" ) );
688 $sql = "UPDATE cur SET cur_touched='" . wfTimestampNow() . "'," .
689 "cur_restrictions='{$limit}' WHERE cur_id={$id}";
690 wfQuery( $sql, DB_WRITE
, "Article::protect" );
692 $log = new LogPage( wfMsg( "protectlogpage" ), wfMsg( "protectlogtext" ) );
693 if ( $limit === "" ) {
694 $log->addEntry( wfMsg( "unprotectedarticle", $this->mTitle
->getPrefixedText() ), "" );
696 $log->addEntry( wfMsg( "protectedarticle", $this->mTitle
->getPrefixedText() ), "" );
698 $wgOut->redirect( wfLocalUrl( $this->mTitle
->getPrefixedURL() ) );
703 return $this->protect( "" );
708 global $wgUser, $wgOut;
709 global $wpConfirm, $wpReason, $image, $oldimage;
711 # This code desperately needs to be totally rewritten
713 if ( ( ! $wgUser->isSysop() ) ) {
714 $wgOut->sysopRequired();
717 if ( wfReadOnly() ) {
718 $wgOut->readOnlyPage();
722 # Better double-check that it hasn't been deleted yet!
723 $wgOut->setPagetitle( wfMsg( "confirmdelete" ) );
724 if ( ( "" == trim( $this->mTitle
->getText() ) )
725 or ( $this->mTitle
->getArticleId() == 0 ) ) {
726 $wgOut->fatalError( wfMsg( "cannotdelete" ) );
730 if ( $_POST["wpConfirm"] ) {
735 # determine whether this page has earlier revisions
736 # and insert a warning if it does
737 # we select the text because it might be useful below
738 $ns = $this->mTitle
->getNamespace();
739 $title = $this->mTitle
->getDBkey();
740 $etitle = wfStrencode( $title );
741 $sql = "SELECT old_text FROM old WHERE old_namespace=$ns and old_title='$etitle' ORDER BY inverse_timestamp LIMIT 1";
742 $res = wfQuery( $sql, DB_READ
, $fname );
743 if( ($old=wfFetchObject($res)) && !$wpConfirm ) {
744 $skin=$wgUser->getSkin();
745 $wgOut->addHTML("<B>".wfMsg("historywarning"));
746 $wgOut->addHTML( $skin->historyLink() ."</B><P>");
749 $sql="SELECT cur_text FROM cur WHERE cur_namespace=$ns and cur_title='$etitle'";
750 $res=wfQuery($sql, DB_READ
, $fname);
751 if( ($s=wfFetchObject($res))) {
753 # if this is a mini-text, we can paste part of it into the deletion reason
755 #if this is empty, an earlier revision may contain "useful" text
756 if($s->cur_text
!="") {
760 $text=$old->old_text
;
766 $length=strlen($text);
768 # this should not happen, since it is not possible to store an empty, new
769 # page. Let's insert a standard text in case it does, though
770 if($length==0 && !$wpReason) { $wpReason=wfmsg("exblank");}
773 if($length < 500 && !$wpReason) {
775 # comment field=255, let's grep the first 150 to have some user
777 $text=substr($text,0,150);
778 # let's strip out newlines and HTML tags
779 $text=preg_replace("/\"/","'",$text);
780 $text=preg_replace("/\</","<",$text);
781 $text=preg_replace("/\>/",">",$text);
782 $text=preg_replace("/[\n\r]/","",$text);
784 $wpReason=wfMsg("excontent"). " '".$text;
786 $wpReason=wfMsg("exbeforeblank") . " '".$text;
788 if($length>150) { $wpReason .= "..."; } # we've only pasted part of the text
793 return $this->confirmDelete();
796 function confirmDelete( $par = "" )
801 wfDebug( "Article::confirmDelete\n" );
803 $sub = htmlspecialchars( $this->mTitle
->getPrefixedText() );
804 $wgOut->setSubtitle( wfMsg( "deletesub", $sub ) );
805 $wgOut->setRobotpolicy( "noindex,nofollow" );
806 $wgOut->addWikiText( wfMsg( "confirmdeletetext" ) );
808 $t = $this->mTitle
->getPrefixedURL();
810 $formaction = wfEscapeHTML( wfLocalUrl( $t, "action=delete" . $par ) );
811 $confirm = wfMsg( "confirm" );
812 $check = wfMsg( "confirmcheck" );
813 $delcom = wfMsg( "deletecomment" );
816 <form id=\"deleteconfirm\" method=\"post\" action=\"{$formaction}\">
817 <table border=0><tr><td align=right>
818 {$delcom}:</td><td align=left>
819 <input type=text size=60 name=\"wpReason\" value=\"" . htmlspecialchars( $wpReason ) . "\">
820 </td></tr><tr><td> </td></tr>
822 <input type=checkbox name=\"wpConfirm\" value='1' id=\"wpConfirm\">
823 </td><td><label for=\"wpConfirm\">{$check}</label></td>
824 </tr><tr><td> </td><td>
825 <input type=submit name=\"wpConfirmB\" value=\"{$confirm}\">
826 </td></tr></table></form>\n" );
828 $wgOut->returnToMain( false );
833 global $wgOut, $wgUser, $wgLang;
835 $fname = "Article::doDelete";
836 wfDebug( "$fname\n" );
838 $this->doDeleteArticle( $this->mTitle
);
839 $deleted = $this->mTitle
->getPrefixedText();
841 $wgOut->setPagetitle( wfMsg( "actioncomplete" ) );
842 $wgOut->setRobotpolicy( "noindex,nofollow" );
844 $sk = $wgUser->getSkin();
845 $loglink = $sk->makeKnownLink( $wgLang->getNsText(
846 Namespace::getWikipedia() ) .
847 ":" . wfMsg( "dellogpage" ), wfMsg( "deletionlog" ) );
849 $text = wfMsg( "deletedtext", $deleted, $loglink );
851 $wgOut->addHTML( "<p>" . $text );
852 $wgOut->returnToMain( false );
855 function doDeleteArticle( $title )
857 global $wgUser, $wgOut, $wgLang, $wpReason, $wgDeferredUpdateList;
859 $fname = "Article::doDeleteArticle";
860 wfDebug( "$fname\n" );
862 $ns = $title->getNamespace();
863 $t = wfStrencode( $title->getDBkey() );
864 $id = $title->getArticleID();
867 $wgOut->fatalError( wfMsg( "cannotdelete" ) );
871 $u = new SiteStatsUpdate( 0, 1, -$this->isCountable( $this->getContent( true ) ) );
872 array_push( $wgDeferredUpdateList, $u );
874 # Move article and history to the "archive" table
875 $sql = "INSERT INTO archive (ar_namespace,ar_title,ar_text," .
876 "ar_comment,ar_user,ar_user_text,ar_timestamp,ar_minor_edit," .
877 "ar_flags) SELECT cur_namespace,cur_title,cur_text,cur_comment," .
878 "cur_user,cur_user_text,cur_timestamp,cur_minor_edit,0 FROM cur " .
879 "WHERE cur_namespace={$ns} AND cur_title='{$t}'";
880 wfQuery( $sql, DB_WRITE
, $fname );
882 $sql = "INSERT INTO archive (ar_namespace,ar_title,ar_text," .
883 "ar_comment,ar_user,ar_user_text,ar_timestamp,ar_minor_edit," .
884 "ar_flags) SELECT old_namespace,old_title,old_text,old_comment," .
885 "old_user,old_user_text,old_timestamp,old_minor_edit,old_flags " .
886 "FROM old WHERE old_namespace={$ns} AND old_title='{$t}'";
887 wfQuery( $sql, DB_WRITE
, $fname );
889 # Now that it's safely backed up, delete it
891 $sql = "DELETE FROM cur WHERE cur_namespace={$ns} AND " .
893 wfQuery( $sql, DB_WRITE
, $fname );
895 $sql = "DELETE FROM old WHERE old_namespace={$ns} AND " .
897 wfQuery( $sql, DB_WRITE
, $fname );
899 $sql = "DELETE FROM recentchanges WHERE rc_namespace={$ns} AND " .
901 wfQuery( $sql, DB_WRITE
, $fname );
903 # Finally, clean up the link tables
907 $t = wfStrencode( $title->getPrefixedDBkey() );
909 if ( $wgEnablePersistentLC ) {
910 // Purge related entries in links cache on delete,
911 wfQuery("DELETE linkscc FROM linkscc,links ".
912 "WHERE lcc_title=links.l_from AND l_to={$id}", DB_WRITE
);
913 wfQuery("DELETE FROM linkscc WHERE lcc_title='{$t}'", DB_WRITE
);
916 $sql = "SELECT l_from FROM links WHERE l_to={$id}";
917 $res = wfQuery( $sql, DB_READ
, $fname );
919 $sql = "INSERT INTO brokenlinks (bl_from,bl_to) VALUES ";
920 $now = wfTimestampNow();
921 $sql2 = "UPDATE cur SET cur_touched='{$now}' WHERE cur_id IN (";
924 while ( $s = wfFetchObject( $res ) ) {
925 $nt = Title
::newFromDBkey( $s->l_from
);
926 $lid = $nt->getArticleID();
928 if ( ! $first ) { $sql .= ","; $sql2 .= ","; }
930 $sql .= "({$lid},'{$t}')";
935 wfQuery( $sql, DB_WRITE
, $fname );
936 wfQuery( $sql2, DB_WRITE
, $fname );
938 wfFreeResult( $res );
940 $sql = "DELETE FROM links WHERE l_to={$id}";
941 wfQuery( $sql, DB_WRITE
, $fname );
943 $sql = "DELETE FROM links WHERE l_from='{$t}'";
944 wfQuery( $sql, DB_WRITE
, $fname );
946 $sql = "DELETE FROM imagelinks WHERE il_from='{$t}'";
947 wfQuery( $sql, DB_WRITE
, $fname );
949 $sql = "DELETE FROM brokenlinks WHERE bl_from={$id}";
950 wfQuery( $sql, DB_WRITE
, $fname );
953 $log = new LogPage( wfMsg( "dellogpage" ), wfMsg( "dellogpagetext" ) );
954 $art = $title->getPrefixedText();
955 $wpReason = wfCleanQueryVar( $wpReason );
956 $log->addEntry( wfMsg( "deletedarticle", $art ), $wpReason );
958 # Clear the cached article id so the interface doesn't act like we exist
959 $this->mTitle
->resetArticleID( 0 );
960 $this->mTitle
->mArticleID
= 0;
965 global $wgUser, $wgLang, $wgOut, $from;
967 if ( ! $wgUser->isSysop() ) {
968 $wgOut->sysopRequired();
972 # Replace all this user's current edits with the next one down
973 $tt = wfStrencode( $this->mTitle
->getDBKey() );
974 $n = $this->mTitle
->getNamespace();
976 # Get the last editor
977 $sql = "SELECT cur_id,cur_user,cur_user_text,cur_comment FROM cur WHERE cur_title='{$tt}' AND cur_namespace={$n}";
978 $res = wfQuery( $sql, DB_READ
);
979 if( ($x = wfNumRows( $res )) != 1 ) {
981 $wgOut->addHTML( wfMsg( "notanarticle" ) );
984 $s = wfFetchObject( $res );
985 $ut = wfStrencode( $s->cur_user_text
);
989 $from = str_replace( '_', ' ', wfCleanQueryVar( $from ) );
990 if( $from != $s->cur_user_text
) {
991 $wgOut->setPageTitle(wfmsg("rollbackfailed"));
992 $wgOut->addWikiText( wfMsg( "alreadyrolled",
993 htmlspecialchars( $this->mTitle
->getPrefixedText()),
994 htmlspecialchars( $from ),
995 htmlspecialchars( $s->cur_user_text
) ) );
996 if($s->cur_comment
!= "") {
999 htmlspecialchars( $s->cur_comment
) ) );
1004 # Get the last edit not by this guy
1005 $sql = "SELECT old_text,old_user,old_user_text
1006 FROM old USE INDEX (name_title_timestamp)
1007 WHERE old_namespace={$n} AND old_title='{$tt}'
1008 AND (old_user <> {$uid} OR old_user_text <> '{$ut}')
1009 ORDER BY inverse_timestamp LIMIT 1";
1010 $res = wfQuery( $sql, DB_READ
);
1011 if( wfNumRows( $res ) != 1 ) {
1013 $wgOut->setPageTitle(wfMsg("rollbackfailed"));
1014 $wgOut->addHTML( wfMsg( "cantrollback" ) );
1017 $s = wfFetchObject( $res );
1020 $newcomment = wfMsg( "revertpage", $s->old_user_text
);
1021 $wgOut->setPagetitle( wfMsg( "actioncomplete" ) );
1022 $wgOut->setRobotpolicy( "noindex,nofollow" );
1023 $wgOut->addHTML( "<h2>" . $newcomment . "</h2>\n<hr>\n" );
1024 $this->updateArticle( $s->old_text
, $newcomment, 1, $this->mTitle
->userIsWatching() );
1026 $wgOut->returnToMain( false );
1030 # Do standard deferred updates after page view
1032 /* private */ function viewUpdates()
1034 global $wgDeferredUpdateList;
1036 if ( 0 != $this->getID() ) {
1037 global $wgDisableCounters;
1038 if( !$wgDisableCounters ) {
1039 $u = new ViewCountUpdate( $this->getID() );
1040 array_push( $wgDeferredUpdateList, $u );
1041 $u = new SiteStatsUpdate( 1, 0, 0 );
1042 array_push( $wgDeferredUpdateList, $u );
1044 $u = new UserTalkUpdate( 0, $this->mTitle
->getNamespace(),
1045 $this->mTitle
->getDBkey() );
1046 array_push( $wgDeferredUpdateList, $u );
1050 # Do standard deferred updates after page edit.
1051 # Every 1000th edit, prune the recent changes table.
1053 /* private */ function editUpdates( $text )
1055 global $wgDeferredUpdateList, $wgDBname, $wgMemc;
1058 if ( 0 == mt_rand( 0, 999 ) ) {
1059 $cutoff = wfUnix2Timestamp( time() - ( 7 * 86400 ) );
1060 $sql = "DELETE FROM recentchanges WHERE rc_timestamp < '{$cutoff}'";
1061 wfQuery( $sql, DB_WRITE
);
1063 $id = $this->getID();
1064 $title = $this->mTitle
->getPrefixedDBkey();
1065 $adj = $this->mCountAdjustment
;
1068 $u = new LinksUpdate( $id, $title );
1069 array_push( $wgDeferredUpdateList, $u );
1070 $u = new SiteStatsUpdate( 0, 1, $adj );
1071 array_push( $wgDeferredUpdateList, $u );
1072 $u = new SearchUpdate( $id, $title, $text );
1073 array_push( $wgDeferredUpdateList, $u );
1075 $u = new UserTalkUpdate( 1, $this->mTitle
->getNamespace(),
1076 $this->mTitle
->getDBkey() );
1077 array_push( $wgDeferredUpdateList, $u );
1079 if ( $this->getNamespace
== NS_MEDIAWIKI
) {
1080 $messageCache = $wgMemc->get( "$wgDBname:messages" );
1081 if (!$messageCache) {
1082 $messageCache = wfLoadAllMessages();
1084 $messageCache[$title] = $text;
1085 $wgMemc->set( "$wgDBname:messages" );
1090 /* private */ function setOldSubtitle()
1092 global $wgLang, $wgOut;
1094 $td = $wgLang->timeanddate( $this->mTimestamp
, true );
1095 $r = wfMsg( "revisionasof", $td );
1096 $wgOut->setSubtitle( "({$r})" );
1099 # This function is called right before saving the wikitext,
1100 # so we can do things like signatures and links-in-context.
1102 function preSaveTransform( $text )
1105 while ( "" != $text ) {
1106 $p = preg_split( "/<\\s*nowiki\\s*>/i", $text, 2 );
1107 $s .= $this->pstPass2( $p[0] );
1109 if ( ( count( $p ) < 2 ) ||
( "" == $p[1] ) ) { $text = ""; }
1111 $q = preg_split( "/<\\/\\s*nowiki\\s*>/i", $p[1], 2 );
1112 $s .= "<nowiki>{$q[0]}</nowiki>";
1119 /* private */ function pstPass2( $text )
1121 global $wgUser, $wgLang, $wgLocaltimezone;
1125 $n = $wgUser->getName();
1126 $k = $wgUser->getOption( "nickname" );
1127 if ( "" == $k ) { $k = $n; }
1128 if(isset($wgLocaltimezone)) {
1129 $oldtz = getenv("TZ"); putenv("TZ=$wgLocaltimezone");
1131 /* Note: this is an ugly timezone hack for the European wikis */
1132 $d = $wgLang->timeanddate( date( "YmdHis" ), false ) .
1133 " (" . date( "T" ) . ")";
1134 if(isset($wgLocaltimezone)) putenv("TZ=$oldtz");
1136 $text = preg_replace( "/~~~~/", "[[" . $wgLang->getNsText(
1137 Namespace::getUser() ) . ":$n|$k]] $d", $text );
1138 $text = preg_replace( "/~~~/", "[[" . $wgLang->getNsText(
1139 Namespace::getUser() ) . ":$n|$k]]", $text );
1141 # Context links: [[|name]] and [[name (context)|]]
1143 $tc = "[&;%\\-,.\\(\\)' _0-9A-Za-z\\/:\\x80-\\xff]";
1144 $np = "[&;%\\-,.' _0-9A-Za-z\\/:\\x80-\\xff]"; # No parens
1145 $namespacechar = '[ _0-9A-Za-z\x80-\xff]'; # Namespaces can use non-ascii!
1146 $conpat = "/^({$np}+) \\(({$tc}+)\\)$/";
1148 $p1 = "/\[\[({$np}+) \\(({$np}+)\\)\\|]]/"; # [[page (context)|]]
1149 $p2 = "/\[\[\\|({$tc}+)]]/"; # [[|page]]
1150 $p3 = "/\[\[($namespacechar+):({$np}+)\\|]]/"; # [[namespace:page|]]
1151 $p4 = "/\[\[($namespacechar+):({$np}+) \\(({$np}+)\\)\\|]]/";
1152 # [[ns:page (cont)|]]
1154 $t = $this->mTitle
->getText();
1155 if ( preg_match( $conpat, $t, $m ) ) {
1158 $text = preg_replace( $p4, "[[\\1:\\2 (\\3)|\\2]]", $text );
1159 $text = preg_replace( $p1, "[[\\1 (\\2)|\\1]]", $text );
1160 $text = preg_replace( $p3, "[[\\1:\\2|\\2]]", $text );
1162 if ( "" == $context ) {
1163 $text = preg_replace( $p2, "[[\\1]]", $text );
1165 $text = preg_replace( $p2, "[[\\1 ({$context})|\\1]]", $text );
1168 # {{SUBST:xxx}} variables
1170 $mw =& MagicWord
::get( MAG_SUBST
);
1171 $text = $mw->substituteCallback( $text, "wfReplaceSubstVar" );
1176 /* Caching functions */
1178 function tryFileCache() {
1179 static $called = false;
1181 wfDebug( " tryFileCache() -- called twice!?\n" );
1185 if($this->isFileCacheable()) {
1186 $touched = $this->mTouched
;
1187 if( strpos( $this->mContent
, "{{" ) !== false ) {
1188 # Expire pages with variable replacements in an hour
1189 $expire = wfUnix2Timestamp( time() - 3600 );
1190 $touched = max( $expire, $touched );
1192 $cache = new CacheManager( $this->mTitle
);
1193 if($cache->isFileCacheGood( $touched )) {
1195 wfDebug( " tryFileCache() - about to load\n" );
1196 $cache->loadFromFileCache();
1197 $wgOut->reportTime(); # For profiling
1200 wfDebug( " tryFileCache() - starting buffer\n" );
1201 if($cache->useGzip() && wfClientAcceptsGzip()) {
1202 /* For some reason, adding this header line over in
1203 CacheManager::saveToFileCache() fails on my test
1204 setup at home, though it works on the live install.
1205 Make double-sure... --brion */
1206 header( "Content-Encoding: gzip" );
1208 ob_start( array(&$cache, 'saveToFileCache' ) );
1211 wfDebug( " tryFileCache() - not cacheable\n" );
1215 function isFileCacheable() {
1216 global $wgUser, $wgUseFileCache, $wgShowIPinHeader;
1217 global $action, $oldid, $diff, $redirect, $printable;
1218 return $wgUseFileCache
1219 and (!$wgShowIPinHeader)
1220 and ($this->getID() != 0)
1221 and ($wgUser->getId() == 0)
1222 and (!$wgUser->getNewtalk())
1223 and ($this->mTitle
->getNamespace
!= Namespace::getSpecial())
1224 and ($action == "view")
1225 and (!isset($oldid))
1227 and (!isset($redirect))
1228 and (!isset($printable))
1229 and (!$this->mRedirectedFrom
);
1232 function checkTouched() {
1233 $id = $this->getID();
1234 $sql = "SELECT cur_touched,cur_is_redirect FROM cur WHERE cur_id=$id";
1235 $res = wfQuery( $sql, DB_READ
, "Article::checkTouched" );
1236 if( $s = wfFetchObject( $res ) ) {
1237 $this->mTouched
= $s->cur_touched
;
1238 return !$s->cur_is_redirect
;
1245 function wfReplaceSubstVar( $matches ) {
1246 return wfMsg( $matches[1] );