9 require_once( 'normal/UtfNormal.php' );
11 $wgTitleInterwikiCache = array();
12 $wgTitleCache = array();
14 define ( 'GAID_FOR_UPDATE', 1 );
16 # Title::newFromTitle maintains a cache to avoid
17 # expensive re-normalization of commonly used titles.
18 # On a batch operation this can become a memory leak
19 # if not bounded. After hitting this many titles,
21 define( 'MW_TITLECACHE_MAX', 1000 );
25 * - Represents a title, which may contain an interwiki designation or namespace
26 * - Can fetch various kinds of data from the database, albeit inefficiently.
32 * All member variables should be considered private
33 * Please use the accessor functions
40 var $mTextform; # Text form (spaces not underscores) of the main part
41 var $mUrlform; # URL-encoded form of the main part
42 var $mDbkeyform; # Main part with underscores
43 var $mNamespace; # Namespace index, i.e. one of the NS_xxxx constants
44 var $mInterwiki; # Interwiki prefix (or null string)
45 var $mFragment; # Title fragment (i.e. the bit after the #)
46 var $mArticleID; # Article ID, fetched from the link cache on demand
47 var $mLatestID; # ID of most recent revision
48 var $mRestrictions; # Array of groups allowed to edit this article
49 # Only null or "sysop" are supported
50 var $mRestrictionsLoaded; # Boolean for initialisation on demand
51 var $mPrefixedText; # Text form including namespace/interwiki, initialised on demand
52 var $mDefaultNamespace; # Namespace index when there is no namespace
53 # Zero except in {{transclusion}} tags
54 var $mWatched; # Is $wgUser watching this page? NULL if unfilled, accessed through userIsWatching()
62 /* private */ function Title() {
63 $this->mInterwiki
= $this->mUrlform
=
64 $this->mTextform
= $this->mDbkeyform
= '';
65 $this->mArticleID
= -1;
66 $this->mNamespace
= NS_MAIN
;
67 $this->mRestrictionsLoaded
= false;
68 $this->mRestrictions
= array();
69 # Dont change the following, NS_MAIN is hardcoded in several place
71 $this->mDefaultNamespace
= NS_MAIN
;
72 $this->mWatched
= NULL;
73 $this->mLatestID
= false;
77 * Create a new Title from a prefixed DB key
78 * @param string $key The database key, which has underscores
79 * instead of spaces, possibly including namespace and
81 * @return Title the new object, or NULL on an error
85 /* static */ function newFromDBkey( $key ) {
87 $t->mDbkeyform
= $key;
88 if( $t->secureAndSplit() )
95 * Create a new Title from text, such as what one would
96 * find in a link. Decodes any HTML entities in the text.
98 * @param string $text the link text; spaces, prefixes,
99 * and an initial ':' indicating the main namespace
101 * @param int $defaultNamespace the namespace to use if
102 * none is specified by a prefix
103 * @return Title the new object, or NULL on an error
107 function newFromText( $text, $defaultNamespace = NS_MAIN
) {
108 global $wgTitleCache;
109 $fname = 'Title::newFromText';
111 if( is_object( $text ) ) {
112 throw new MWException( 'Title::newFromText given an object' );
116 * Wiki pages often contain multiple links to the same page.
117 * Title normalization and parsing can become expensive on
118 * pages with many links, so we can save a little time by
121 * In theory these are value objects and won't get changed...
123 if( $defaultNamespace == NS_MAIN
&& isset( $wgTitleCache[$text] ) ) {
124 return $wgTitleCache[$text];
128 * Convert things like é ā or 〗 into real text...
130 $filteredText = Sanitizer
::decodeCharReferences( $text );
133 $t->mDbkeyform
= str_replace( ' ', '_', $filteredText );
134 $t->mDefaultNamespace
= $defaultNamespace;
136 static $cachedcount = 0 ;
137 if( $t->secureAndSplit() ) {
138 if( $defaultNamespace == NS_MAIN
) {
139 if( $cachedcount >= MW_TITLECACHE_MAX
) {
140 # Avoid memory leaks on mass operations...
141 $wgTitleCache = array();
145 $wgTitleCache[$text] =& $t;
155 * Create a new Title from URL-encoded text. Ensures that
156 * the given title's length does not exceed the maximum.
157 * @param string $url the title, as might be taken from a URL
158 * @return Title the new object, or NULL on an error
162 function newFromURL( $url ) {
163 global $wgLegalTitleChars;
166 # For compatibility with old buggy URLs. "+" is usually not valid in titles,
167 # but some URLs used it as a space replacement and they still come
168 # from some external search tools.
169 if ( strpos( $wgLegalTitleChars, '+' ) === false ) {
170 $url = str_replace( '+', ' ', $url );
173 $t->mDbkeyform
= str_replace( ' ', '_', $url );
174 if( $t->secureAndSplit() ) {
182 * Create a new Title from an article ID
184 * @todo This is inefficiently implemented, the page row is requested
185 * but not used for anything else
187 * @param int $id the page_id corresponding to the Title to create
188 * @return Title the new object, or NULL on an error
192 function newFromID( $id ) {
193 $fname = 'Title::newFromID';
194 $dbr =& wfGetDB( DB_SLAVE
);
195 $row = $dbr->selectRow( 'page', array( 'page_namespace', 'page_title' ),
196 array( 'page_id' => $id ), $fname );
197 if ( $row !== false ) {
198 $title = Title
::makeTitle( $row->page_namespace
, $row->page_title
);
206 * Create a new Title from a namespace index and a DB key.
207 * It's assumed that $ns and $title are *valid*, for instance when
208 * they came directly from the database or a special page name.
209 * For convenience, spaces are converted to underscores so that
210 * eg user_text fields can be used directly.
212 * @param int $ns the namespace of the article
213 * @param string $title the unprefixed database key form
214 * @return Title the new object
218 function &makeTitle( $ns, $title ) {
222 $t->mNamespace
= intval( $ns );
223 $t->mDbkeyform
= str_replace( ' ', '_', $title );
224 $t->mArticleID
= ( $ns >= 0 ) ?
-1 : 0;
225 $t->mUrlform
= wfUrlencode( $t->mDbkeyform
);
226 $t->mTextform
= str_replace( '_', ' ', $title );
231 * Create a new Title frrom a namespace index and a DB key.
232 * The parameters will be checked for validity, which is a bit slower
233 * than makeTitle() but safer for user-provided data.
235 * @param int $ns the namespace of the article
236 * @param string $title the database key form
237 * @return Title the new object, or NULL on an error
241 function makeTitleSafe( $ns, $title ) {
243 $t->mDbkeyform
= Title
::makeName( $ns, $title );
244 if( $t->secureAndSplit() ) {
252 * Create a new Title for the Main Page
255 * @return Title the new object
258 function newMainPage() {
259 return Title
::newFromText( wfMsgForContent( 'mainpage' ) );
263 * Create a new Title for a redirect
264 * @param string $text the redirect title text
265 * @return Title the new object, or NULL if the text is not a
270 function newFromRedirect( $text ) {
273 if ( $wgMwRedir->matchStart( $text ) ) {
274 if ( preg_match( '/\[{2}(.*?)(?:\||\]{2})/', $text, $m ) ) {
275 # categories are escaped using : for example one can enter:
276 # #REDIRECT [[:Category:Music]]. Need to remove it.
277 if ( substr($m[1],0,1) == ':') {
278 # We don't want to keep the ':'
279 $m[1] = substr( $m[1], 1 );
282 $rt = Title
::newFromText( $m[1] );
283 # Disallow redirects to Special:Userlogout
284 if ( !is_null($rt) && $rt->getNamespace() == NS_SPECIAL
&& preg_match( '/^Userlogout/i', $rt->getText() ) ) {
292 #----------------------------------------------------------------------------
294 #----------------------------------------------------------------------------
297 * Get the prefixed DB key associated with an ID
298 * @param int $id the page_id of the article
299 * @return Title an object representing the article, or NULL
300 * if no such article was found
304 function nameOf( $id ) {
305 $fname = 'Title::nameOf';
306 $dbr =& wfGetDB( DB_SLAVE
);
308 $s = $dbr->selectRow( 'page', array( 'page_namespace','page_title' ), array( 'page_id' => $id ), $fname );
309 if ( $s === false ) { return NULL; }
311 $n = Title
::makeName( $s->page_namespace
, $s->page_title
);
316 * Get a regex character class describing the legal characters in a link
317 * @return string the list of characters, not delimited
321 function legalChars() {
322 global $wgLegalTitleChars;
323 return $wgLegalTitleChars;
327 * Get a string representation of a title suitable for
328 * including in a search index
330 * @param int $ns a namespace index
331 * @param string $title text-form main part
332 * @return string a stripped-down title string ready for the
335 /* static */ function indexTitle( $ns, $title ) {
338 $lc = SearchEngine
::legalSearchChars() . '&#;';
339 $t = $wgContLang->stripForSearch( $title );
340 $t = preg_replace( "/[^{$lc}]+/", ' ', $t );
341 $t = strtolower( $t );
344 $t = preg_replace( "/([{$lc}]+)'s( |$)/", "\\1 \\1's ", $t );
345 $t = preg_replace( "/([{$lc}]+)s'( |$)/", "\\1s ", $t );
347 $t = preg_replace( "/\\s+/", ' ', $t );
349 if ( $ns == NS_IMAGE
) {
350 $t = preg_replace( "/ (png|gif|jpg|jpeg|ogg)$/", "", $t );
356 * Make a prefixed DB key from a DB key and a namespace index
357 * @param int $ns numerical representation of the namespace
358 * @param string $title the DB key form the title
359 * @return string the prefixed form of the title
361 /* static */ function makeName( $ns, $title ) {
364 $n = $wgContLang->getNsText( $ns );
365 return $n == '' ?
$title : "$n:$title";
369 * Returns the URL associated with an interwiki prefix
370 * @param string $key the interwiki prefix (e.g. "MeatBall")
371 * @return the associated URL, containing "$1", which should be
372 * replaced by an article title
376 function getInterwikiLink( $key ) {
377 global $wgMemc, $wgDBname, $wgInterwikiExpiry, $wgTitleInterwikiCache;
378 global $wgInterwikiCache;
379 $fname = 'Title::getInterwikiLink';
381 $key = strtolower( $key );
383 $k = $wgDBname.':interwiki:'.$key;
384 if( array_key_exists( $k, $wgTitleInterwikiCache ) ) {
385 return $wgTitleInterwikiCache[$k]->iw_url
;
388 if ($wgInterwikiCache) {
389 return Title
::getInterwikiCached( $key );
392 $s = $wgMemc->get( $k );
393 # Ignore old keys with no iw_local
394 if( $s && isset( $s->iw_local
) && isset($s->iw_trans
)) {
395 $wgTitleInterwikiCache[$k] = $s;
399 $dbr =& wfGetDB( DB_SLAVE
);
400 $res = $dbr->select( 'interwiki',
401 array( 'iw_url', 'iw_local', 'iw_trans' ),
402 array( 'iw_prefix' => $key ), $fname );
407 $s = $dbr->fetchObject( $res );
409 # Cache non-existence: create a blank object and save it to memcached
415 $wgMemc->set( $k, $s, $wgInterwikiExpiry );
416 $wgTitleInterwikiCache[$k] = $s;
422 * Fetch interwiki prefix data from local cache in constant database
424 * More logic is explained in DefaultSettings
426 * @return string URL of interwiki site
429 function getInterwikiCached( $key ) {
430 global $wgDBname, $wgInterwikiCache, $wgInterwikiScopes, $wgInterwikiFallbackSite;
431 global $wgTitleInterwikiCache;
435 $db=dba_open($wgInterwikiCache,'r','cdb');
436 /* Resolve site name */
437 if ($wgInterwikiScopes>=3 and !$site) {
438 $site = dba_fetch("__sites:{$wgDBname}", $db);
440 $site = $wgInterwikiFallbackSite;
442 $value = dba_fetch("{$wgDBname}:{$key}", $db);
443 if ($value=='' and $wgInterwikiScopes>=3) {
445 $value = dba_fetch("_{$site}:{$key}", $db);
447 if ($value=='' and $wgInterwikiScopes>=2) {
449 $value = dba_fetch("__global:{$key}", $db);
458 list($local,$url)=explode(' ',$value,2);
460 $s->iw_local
=(int)$local;
462 $wgTitleInterwikiCache[$wgDBname.':interwiki:'.$key] = $s;
466 * Determine whether the object refers to a page within
469 * @return bool TRUE if this is an in-project interwiki link
470 * or a wikilink, FALSE otherwise
474 global $wgTitleInterwikiCache, $wgDBname;
476 if ( $this->mInterwiki
!= '' ) {
477 # Make sure key is loaded into cache
478 $this->getInterwikiLink( $this->mInterwiki
);
479 $k = $wgDBname.':interwiki:' . $this->mInterwiki
;
480 return (bool)($wgTitleInterwikiCache[$k]->iw_local
);
487 * Determine whether the object refers to a page within
488 * this project and is transcludable.
490 * @return bool TRUE if this is transcludable
494 global $wgTitleInterwikiCache, $wgDBname;
496 if ($this->mInterwiki
== '')
498 # Make sure key is loaded into cache
499 $this->getInterwikiLink( $this->mInterwiki
);
500 $k = $wgDBname.':interwiki:' . $this->mInterwiki
;
501 return (bool)($wgTitleInterwikiCache[$k]->iw_trans
);
505 * Update the page_touched field for an array of title objects
506 * @todo Inefficient unless the IDs are already loaded into the
508 * @param array $titles an array of Title objects to be touched
509 * @param string $timestamp the timestamp to use instead of the
510 * default current time
514 function touchArray( $titles, $timestamp = '' ) {
516 if ( count( $titles ) == 0 ) {
519 $dbw =& wfGetDB( DB_MASTER
);
520 if ( $timestamp == '' ) {
521 $timestamp = $dbw->timestamp();
524 $page = $dbw->tableName( 'page' );
525 $sql = "UPDATE $page SET page_touched='{$timestamp}' WHERE page_id IN (";
528 foreach ( $titles as $title ) {
529 if ( $wgUseFileCache ) {
530 $cm = new CacheManager($title);
531 @unlink($cm->fileCacheName());
538 $sql .= $title->getArticleID();
542 $dbw->query( $sql, 'Title::touchArray' );
545 // hack hack hack -- brion 2005-07-11. this was unfriendly to db.
546 // do them in small chunks:
547 $fname = 'Title::touchArray';
548 foreach( $titles as $title ) {
549 $dbw->update( 'page',
550 array( 'page_touched' => $timestamp ),
552 'page_namespace' => $title->getNamespace(),
553 'page_title' => $title->getDBkey() ),
558 #----------------------------------------------------------------------------
560 #----------------------------------------------------------------------------
562 /** Simple accessors */
564 * Get the text form (spaces not underscores) of the main part
568 function getText() { return $this->mTextform
; }
570 * Get the URL-encoded form of the main part
574 function getPartialURL() { return $this->mUrlform
; }
576 * Get the main part with underscores
580 function getDBkey() { return $this->mDbkeyform
; }
582 * Get the namespace index, i.e. one of the NS_xxxx constants
586 function getNamespace() { return $this->mNamespace
; }
588 * Get the namespace text
592 function getNsText() {
594 return $wgContLang->getNsText( $this->mNamespace
);
597 * Get the namespace text of the subject (rather than talk) page
601 function getSubjectNsText() {
603 return $wgContLang->getNsText( Namespace::getSubject( $this->mNamespace
) );
607 * Get the namespace text of the talk page
610 function getTalkNsText() {
612 return( $wgContLang->getNsText( Namespace::getTalk( $this->mNamespace
) ) );
616 * Could this title have a corresponding talk page?
620 return( Namespace::canTalk( $this->mNamespace
) );
624 * Get the interwiki prefix (or null string)
628 function getInterwiki() { return $this->mInterwiki
; }
630 * Get the Title fragment (i.e. the bit after the #)
634 function getFragment() { return $this->mFragment
; }
636 * Get the default namespace index, for when there is no namespace
640 function getDefaultNamespace() { return $this->mDefaultNamespace
; }
643 * Get title for search index
644 * @return string a stripped-down title string ready for the
647 function getIndexTitle() {
648 return Title
::indexTitle( $this->mNamespace
, $this->mTextform
);
652 * Get the prefixed database key form
653 * @return string the prefixed title, with underscores and
654 * any interwiki and namespace prefixes
657 function getPrefixedDBkey() {
658 $s = $this->prefix( $this->mDbkeyform
);
659 $s = str_replace( ' ', '_', $s );
664 * Get the prefixed title with spaces.
665 * This is the form usually used for display
666 * @return string the prefixed title, with spaces
669 function getPrefixedText() {
670 if ( empty( $this->mPrefixedText
) ) { // FIXME: bad usage of empty() ?
671 $s = $this->prefix( $this->mTextform
);
672 $s = str_replace( '_', ' ', $s );
673 $this->mPrefixedText
= $s;
675 return $this->mPrefixedText
;
679 * Get the prefixed title with spaces, plus any fragment
680 * (part beginning with '#')
681 * @return string the prefixed title, with spaces and
682 * the fragment, including '#'
685 function getFullText() {
686 $text = $this->getPrefixedText();
687 if( '' != $this->mFragment
) {
688 $text .= '#' . $this->mFragment
;
694 * Get the base name, i.e. the leftmost parts before the /
695 * @return string Base name
697 function getBaseText() {
698 global $wgNamespacesWithSubpages;
699 if( isset( $wgNamespacesWithSubpages[ $this->mNamespace
] ) && $wgNamespacesWithSubpages[ $this->mNamespace
] ) {
700 $parts = explode( '/', $this->getText() );
701 # Don't discard the real title if there's no subpage involved
702 if( count( $parts ) > 1 )
703 unset( $parts[ count( $parts ) - 1 ] );
704 return implode( '/', $parts );
706 return $this->getText();
711 * Get the lowest-level subpage name, i.e. the rightmost part after /
712 * @return string Subpage name
714 function getSubpageText() {
715 global $wgNamespacesWithSubpages;
716 if( isset( $wgNamespacesWithSubpages[ $this->mNamespace
] ) && $wgNamespacesWithSubpages[ $this->mNamespace
] ) {
717 $parts = explode( '/', $this->mTextform
);
718 return( $parts[ count( $parts ) - 1 ] );
720 return( $this->mTextform
);
725 * Get a URL-encoded form of the subpage text
726 * @return string URL-encoded subpage name
728 function getSubpageUrlForm() {
729 $text = $this->getSubpageText();
730 $text = wfUrlencode( str_replace( ' ', '_', $text ) );
731 $text = str_replace( '%28', '(', str_replace( '%29', ')', $text ) ); # Clean up the URL; per below, this might not be safe
736 * Get a URL-encoded title (not an actual URL) including interwiki
737 * @return string the URL-encoded form
740 function getPrefixedURL() {
741 $s = $this->prefix( $this->mDbkeyform
);
742 $s = str_replace( ' ', '_', $s );
744 $s = wfUrlencode ( $s ) ;
746 # Cleaning up URL to make it look nice -- is this safe?
747 $s = str_replace( '%28', '(', $s );
748 $s = str_replace( '%29', ')', $s );
754 * Get a real URL referring to this title, with interwiki link and
757 * @param string $query an optional query string, not used
758 * for interwiki links
759 * @return string the URL
762 function getFullURL( $query = '' ) {
763 global $wgContLang, $wgServer, $wgRequest;
765 if ( '' == $this->mInterwiki
) {
766 $url = $this->getLocalUrl( $query );
768 // Ugly quick hack to avoid duplicate prefixes (bug 4571 etc)
769 // Correct fix would be to move the prepending elsewhere.
770 if ($wgRequest->getVal('action') != 'render') {
771 $url = $wgServer . $url;
774 $baseUrl = $this->getInterwikiLink( $this->mInterwiki
);
776 $namespace = $wgContLang->getNsText( $this->mNamespace
);
777 if ( '' != $namespace ) {
778 # Can this actually happen? Interwikis shouldn't be parsed.
781 $url = str_replace( '$1', $namespace . $this->mUrlform
, $baseUrl );
783 if( false === strpos( $url, '?' ) ) {
792 # Finally, add the fragment.
793 if ( '' != $this->mFragment
) {
794 $url .= '#' . $this->mFragment
;
797 wfRunHooks( 'GetFullURL', array( &$this, &$url, $query ) );
802 * Get a URL with no fragment or server name. If this page is generated
803 * with action=render, $wgServer is prepended.
804 * @param string $query an optional query string; if not specified,
805 * $wgArticlePath will be used.
806 * @return string the URL
809 function getLocalURL( $query = '' ) {
810 global $wgArticlePath, $wgScript, $wgServer, $wgRequest;
812 if ( $this->isExternal() ) {
813 $url = $this->getFullURL();
815 // This is currently only used for edit section links in the
816 // context of interwiki transclusion. In theory we should
817 // append the query to the end of any existing query string,
818 // but interwiki transclusion is already broken in that case.
822 $dbkey = wfUrlencode( $this->getPrefixedDBkey() );
823 if ( $query == '' ) {
824 $url = str_replace( '$1', $dbkey, $wgArticlePath );
826 global $wgActionPaths;
828 if( !empty( $wgActionPaths ) &&
829 preg_match( '/^(.*&|)action=([^&]*)(&(.*)|)$/', $query, $matches ) )
831 $action = urldecode( $matches[2] );
832 if( isset( $wgActionPaths[$action] ) ) {
833 $query = $matches[1];
834 if( isset( $matches[4] ) ) $query .= $matches[4];
835 $url = str_replace( '$1', $dbkey, $wgActionPaths[$action] );
836 if( $query != '' ) $url .= '?' . $query;
839 if ( $url === false ) {
840 if ( $query == '-' ) {
843 $url = "{$wgScript}?title={$dbkey}&{$query}";
847 // FIXME: this causes breakage in various places when we
848 // actually expected a local URL and end up with dupe prefixes.
849 if ($wgRequest->getVal('action') == 'render') {
850 $url = $wgServer . $url;
853 wfRunHooks( 'GetLocalURL', array( &$this, &$url, $query ) );
858 * Get an HTML-escaped version of the URL form, suitable for
859 * using in a link, without a server name or fragment
860 * @param string $query an optional query string
861 * @return string the URL
864 function escapeLocalURL( $query = '' ) {
865 return htmlspecialchars( $this->getLocalURL( $query ) );
869 * Get an HTML-escaped version of the URL form, suitable for
870 * using in a link, including the server name and fragment
872 * @return string the URL
873 * @param string $query an optional query string
876 function escapeFullURL( $query = '' ) {
877 return htmlspecialchars( $this->getFullURL( $query ) );
881 * Get the URL form for an internal link.
882 * - Used in various Squid-related code, in case we have a different
883 * internal hostname for the server from the exposed one.
885 * @param string $query an optional query string
886 * @return string the URL
889 function getInternalURL( $query = '' ) {
890 global $wgInternalServer;
891 $url = $wgInternalServer . $this->getLocalURL( $query );
892 wfRunHooks( 'GetInternalURL', array( &$this, &$url, $query ) );
897 * Get the edit URL for this Title
898 * @return string the URL, or a null string if this is an
902 function getEditURL() {
903 if ( '' != $this->mInterwiki
) { return ''; }
904 $s = $this->getLocalURL( 'action=edit' );
910 * Get the HTML-escaped displayable text form.
911 * Used for the title field in <a> tags.
912 * @return string the text, including any prefixes
915 function getEscapedText() {
916 return htmlspecialchars( $this->getPrefixedText() );
920 * Is this Title interwiki?
924 function isExternal() { return ( '' != $this->mInterwiki
); }
927 * Is this page "semi-protected" - the *only* protection is autoconfirm?
929 * @param string Action to check (default: edit)
932 function isSemiProtected( $action = 'edit' ) {
933 $restrictions = $this->getRestrictions( $action );
934 # We do a full compare because this could be an array
935 foreach( $restrictions as $restriction ) {
936 if( strtolower( $restriction ) != 'autoconfirmed' ) {
944 * Does the title correspond to a protected article?
945 * @param string $what the action the page is protected from,
946 * by default checks move and edit
950 function isProtected( $action = '' ) {
951 global $wgRestrictionLevels;
952 if ( -1 == $this->mNamespace
) { return true; }
954 if( $action == 'edit' ||
$action == '' ) {
955 $r = $this->getRestrictions( 'edit' );
956 foreach( $wgRestrictionLevels as $level ) {
957 if( in_array( $level, $r ) && $level != '' ) {
963 if( $action == 'move' ||
$action == '' ) {
964 $r = $this->getRestrictions( 'move' );
965 foreach( $wgRestrictionLevels as $level ) {
966 if( in_array( $level, $r ) && $level != '' ) {
976 * Is $wgUser is watching this page?
980 function userIsWatching() {
983 if ( is_null( $this->mWatched
) ) {
984 if ( -1 == $this->mNamespace ||
0 == $wgUser->getID()) {
985 $this->mWatched
= false;
987 $this->mWatched
= $wgUser->isWatched( $this );
990 return $this->mWatched
;
994 * Can $wgUser perform $action this page?
995 * @param string $action action that permission needs to be checked for
999 function userCan($action) {
1000 $fname = 'Title::userCan';
1001 wfProfileIn( $fname );
1006 wfRunHooks( 'userCan', array( &$this, &$wgUser, $action, &$result ) );
1007 if ( $result !== null ) {
1008 wfProfileOut( $fname );
1012 if( NS_SPECIAL
== $this->mNamespace
) {
1013 wfProfileOut( $fname );
1016 // XXX: This is the code that prevents unprotecting a page in NS_MEDIAWIKI
1017 // from taking effect -ævar
1018 if( NS_MEDIAWIKI
== $this->mNamespace
&&
1019 !$wgUser->isAllowed('editinterface') ) {
1020 wfProfileOut( $fname );
1024 if( $this->mDbkeyform
== '_' ) {
1025 # FIXME: Is this necessary? Shouldn't be allowed anyway...
1026 wfProfileOut( $fname );
1030 # protect css/js subpages of user pages
1031 # XXX: this might be better using restrictions
1032 # XXX: Find a way to work around the php bug that prevents using $this->userCanEditCssJsSubpage() from working
1033 if( NS_USER
== $this->mNamespace
1034 && preg_match("/\\.(css|js)$/", $this->mTextform
)
1035 && !$wgUser->isAllowed('editinterface')
1036 && !preg_match('/^'.preg_quote($wgUser->getName(), '/').'\//', $this->mTextform
) ) {
1037 wfProfileOut( $fname );
1041 foreach( $this->getRestrictions($action) as $right ) {
1042 // Backwards compatibility, rewrite sysop -> protect
1043 if ( $right == 'sysop' ) {
1046 if( '' != $right && !$wgUser->isAllowed( $right ) ) {
1047 wfProfileOut( $fname );
1052 if( $action == 'move' &&
1053 !( $this->isMovable() && $wgUser->isAllowed( 'move' ) ) ) {
1054 wfProfileOut( $fname );
1058 if( $action == 'create' ) {
1059 if( ( $this->isTalkPage() && !$wgUser->isAllowed( 'createtalk' ) ) ||
1060 ( !$this->isTalkPage() && !$wgUser->isAllowed( 'createpage' ) ) ) {
1065 wfProfileOut( $fname );
1070 * Can $wgUser edit this page?
1074 function userCanEdit() {
1075 return $this->userCan('edit');
1079 * Can $wgUser move this page?
1083 function userCanMove() {
1084 return $this->userCan('move');
1088 * Would anybody with sufficient privileges be able to move this page?
1089 * Some pages just aren't movable.
1094 function isMovable() {
1095 return Namespace::isMovable( $this->getNamespace() )
1096 && $this->getInterwiki() == '';
1100 * Can $wgUser read this page?
1104 function userCanRead() {
1108 wfRunHooks( 'userCan', array( &$this, &$wgUser, 'read', &$result ) );
1109 if ( $result !== null ) {
1113 if( $wgUser->isAllowed('read') ) {
1116 global $wgWhitelistRead;
1118 /** If anon users can create an account,
1119 they need to reach the login page first! */
1120 if( $wgUser->isAllowed( 'createaccount' )
1121 && $this->getNamespace() == NS_SPECIAL
1122 && $this->getText() == 'Userlogin' ) {
1126 /** some pages are explicitly allowed */
1127 $name = $this->getPrefixedText();
1128 if( $wgWhitelistRead && in_array( $name, $wgWhitelistRead ) ) {
1132 # Compatibility with old settings
1133 if( $wgWhitelistRead && $this->getNamespace() == NS_MAIN
) {
1134 if( in_array( ':' . $name, $wgWhitelistRead ) ) {
1143 * Is this a talk page of some sort?
1147 function isTalkPage() {
1148 return Namespace::isTalk( $this->getNamespace() );
1152 * Is this a .css or .js subpage of a user page?
1156 function isCssJsSubpage() {
1157 return ( NS_USER
== $this->mNamespace
and preg_match("/\\.(css|js)$/", $this->mTextform
) );
1160 * Is this a *valid* .css or .js subpage of a user page?
1161 * Check that the corresponding skin exists
1163 function isValidCssJsSubpage() {
1164 global $wgValidSkinNames;
1165 return( $this->isCssJsSubpage() && array_key_exists( $this->getSkinFromCssJsSubpage(), $wgValidSkinNames ) );
1168 * Trim down a .css or .js subpage title to get the corresponding skin name
1170 function getSkinFromCssJsSubpage() {
1171 $subpage = explode( '/', $this->mTextform
);
1172 $subpage = $subpage[ count( $subpage ) - 1 ];
1173 return( str_replace( array( '.css', '.js' ), array( '', '' ), $subpage ) );
1176 * Is this a .css subpage of a user page?
1180 function isCssSubpage() {
1181 return ( NS_USER
== $this->mNamespace
and preg_match("/\\.css$/", $this->mTextform
) );
1184 * Is this a .js subpage of a user page?
1188 function isJsSubpage() {
1189 return ( NS_USER
== $this->mNamespace
and preg_match("/\\.js$/", $this->mTextform
) );
1192 * Protect css/js subpages of user pages: can $wgUser edit
1196 * @todo XXX: this might be better using restrictions
1199 function userCanEditCssJsSubpage() {
1201 return ( $wgUser->isAllowed('editinterface') or preg_match('/^'.preg_quote($wgUser->getName(), '/').'\//', $this->mTextform
) );
1205 * Loads a string into mRestrictions array
1206 * @param string $res restrictions in string format
1209 function loadRestrictions( $res ) {
1210 foreach( explode( ':', trim( $res ) ) as $restrict ) {
1211 $temp = explode( '=', trim( $restrict ) );
1212 if(count($temp) == 1) {
1213 // old format should be treated as edit/move restriction
1214 $this->mRestrictions
["edit"] = explode( ',', trim( $temp[0] ) );
1215 $this->mRestrictions
["move"] = explode( ',', trim( $temp[0] ) );
1217 $this->mRestrictions
[$temp[0]] = explode( ',', trim( $temp[1] ) );
1220 $this->mRestrictionsLoaded
= true;
1224 * Accessor/initialisation for mRestrictions
1225 * @param string $action action that permission needs to be checked for
1226 * @return array the array of groups allowed to edit this article
1229 function getRestrictions($action) {
1230 $id = $this->getArticleID();
1231 if ( 0 == $id ) { return array(); }
1233 if ( ! $this->mRestrictionsLoaded
) {
1234 $dbr =& wfGetDB( DB_SLAVE
);
1235 $res = $dbr->selectField( 'page', 'page_restrictions', 'page_id='.$id );
1236 $this->loadRestrictions( $res );
1238 if( isset( $this->mRestrictions
[$action] ) ) {
1239 return $this->mRestrictions
[$action];
1245 * Is there a version of this page in the deletion archive?
1246 * @return int the number of archived revisions
1249 function isDeleted() {
1250 $fname = 'Title::isDeleted';
1251 if ( $this->getNamespace() < 0 ) {
1254 $dbr =& wfGetDB( DB_SLAVE
);
1255 $n = $dbr->selectField( 'archive', 'COUNT(*)', array( 'ar_namespace' => $this->getNamespace(),
1256 'ar_title' => $this->getDBkey() ), $fname );
1262 * Get the article ID for this Title from the link cache,
1263 * adding it if necessary
1264 * @param int $flags a bit field; may be GAID_FOR_UPDATE to select
1266 * @return int the ID
1269 function getArticleID( $flags = 0 ) {
1270 $linkCache =& LinkCache
::singleton();
1271 if ( $flags & GAID_FOR_UPDATE
) {
1272 $oldUpdate = $linkCache->forUpdate( true );
1273 $this->mArticleID
= $linkCache->addLinkObj( $this );
1274 $linkCache->forUpdate( $oldUpdate );
1276 if ( -1 == $this->mArticleID
) {
1277 $this->mArticleID
= $linkCache->addLinkObj( $this );
1280 return $this->mArticleID
;
1283 function getLatestRevID() {
1284 if ($this->mLatestID
!== false)
1285 return $this->mLatestID
;
1287 $db =& wfGetDB(DB_SLAVE
);
1288 return $this->mLatestID
= $db->selectField( 'revision',
1290 array('rev_page' => $this->getArticleID()),
1291 'Title::getLatestRevID' );
1295 * This clears some fields in this object, and clears any associated
1296 * keys in the "bad links" section of the link cache.
1298 * - This is called from Article::insertNewArticle() to allow
1299 * loading of the new page_id. It's also called from
1300 * Article::doDeleteArticle()
1302 * @param int $newid the new Article ID
1305 function resetArticleID( $newid ) {
1306 $linkCache =& LinkCache
::singleton();
1307 $linkCache->clearBadLink( $this->getPrefixedDBkey() );
1309 if ( 0 == $newid ) { $this->mArticleID
= -1; }
1310 else { $this->mArticleID
= $newid; }
1311 $this->mRestrictionsLoaded
= false;
1312 $this->mRestrictions
= array();
1316 * Updates page_touched for this page; called from LinksUpdate.php
1317 * @return bool true if the update succeded
1320 function invalidateCache() {
1321 global $wgUseFileCache;
1323 if ( wfReadOnly() ) {
1327 $dbw =& wfGetDB( DB_MASTER
);
1328 $success = $dbw->update( 'page',
1330 'page_touched' => $dbw->timestamp()
1331 ), array( /* WHERE */
1332 'page_namespace' => $this->getNamespace() ,
1333 'page_title' => $this->getDBkey()
1334 ), 'Title::invalidateCache'
1337 if ($wgUseFileCache) {
1338 $cache = new CacheManager($this);
1339 @unlink
($cache->fileCacheName());
1346 * Prefix some arbitrary text with the namespace or interwiki prefix
1349 * @param string $name the text
1350 * @return string the prefixed text
1353 /* private */ function prefix( $name ) {
1357 if ( '' != $this->mInterwiki
) {
1358 $p = $this->mInterwiki
. ':';
1360 if ( 0 != $this->mNamespace
) {
1361 $p .= $wgContLang->getNsText( $this->mNamespace
) . ':';
1367 * Secure and split - main initialisation function for this object
1369 * Assumes that mDbkeyform has been set, and is urldecoded
1370 * and uses underscores, but not otherwise munged. This function
1371 * removes illegal characters, splits off the interwiki and
1372 * namespace prefixes, sets the other forms, and canonicalizes
1374 * @return bool true on success
1377 /* private */ function secureAndSplit() {
1378 global $wgContLang, $wgLocalInterwiki, $wgCapitalLinks;
1379 $fname = 'Title::secureAndSplit';
1382 static $rxTc = false;
1384 # % is needed as well
1385 $rxTc = '/[^' . Title
::legalChars() . ']|%[0-9A-Fa-f]{2}/S';
1388 $this->mInterwiki
= $this->mFragment
= '';
1389 $this->mNamespace
= $this->mDefaultNamespace
; # Usually NS_MAIN
1391 # Clean up whitespace
1393 $t = preg_replace( '/[ _]+/', '_', $this->mDbkeyform
);
1394 $t = trim( $t, '_' );
1400 if( false !== strpos( $t, UTF8_REPLACEMENT
) ) {
1401 # Contained illegal UTF-8 sequences or forbidden Unicode chars.
1405 $this->mDbkeyform
= $t;
1407 # Initial colon indicates main namespace rather than specified default
1408 # but should not create invalid {ns,title} pairs such as {0,Project:Foo}
1409 if ( ':' == $t{0} ) {
1410 $this->mNamespace
= NS_MAIN
;
1411 $t = substr( $t, 1 ); # remove the colon but continue processing
1414 # Namespace or interwiki prefix
1417 if ( preg_match( "/^(.+?)_*:_*(.*)$/S", $t, $m ) ) {
1419 $lowerNs = strtolower( $p );
1420 if ( $ns = Namespace::getCanonicalIndex( $lowerNs ) ) {
1421 # Canonical namespace
1423 $this->mNamespace
= $ns;
1424 } elseif ( $ns = $wgContLang->getNsIndex( $lowerNs )) {
1425 # Ordinary namespace
1427 $this->mNamespace
= $ns;
1428 } elseif( $this->getInterwikiLink( $p ) ) {
1430 # Can't make a local interwiki link to an interwiki link.
1431 # That's just crazy!
1437 $this->mInterwiki
= strtolower( $p );
1439 # Redundant interwiki prefix to the local wiki
1440 if ( 0 == strcasecmp( $this->mInterwiki
, $wgLocalInterwiki ) ) {
1442 # Can't have an empty self-link
1445 $this->mInterwiki
= '';
1447 # Do another namespace split...
1451 # If there's an initial colon after the interwiki, that also
1452 # resets the default namespace
1453 if ( $t !== '' && $t[0] == ':' ) {
1454 $this->mNamespace
= NS_MAIN
;
1455 $t = substr( $t, 1 );
1458 # If there's no recognized interwiki or namespace,
1459 # then let the colon expression be part of the title.
1465 # We already know that some pages won't be in the database!
1467 if ( '' != $this->mInterwiki ||
-1 == $this->mNamespace
) {
1468 $this->mArticleID
= 0;
1470 $f = strstr( $r, '#' );
1471 if ( false !== $f ) {
1472 $this->mFragment
= substr( $f, 1 );
1473 $r = substr( $r, 0, strlen( $r ) - strlen( $f ) );
1474 # remove whitespace again: prevents "Foo_bar_#"
1475 # becoming "Foo_bar_"
1476 $r = preg_replace( '/_*$/', '', $r );
1479 # Reject illegal characters.
1481 if( preg_match( $rxTc, $r ) ) {
1486 * Pages with "/./" or "/../" appearing in the URLs will
1487 * often be unreachable due to the way web browsers deal
1488 * with 'relative' URLs. Forbid them explicitly.
1490 if ( strpos( $r, '.' ) !== false &&
1491 ( $r === '.' ||
$r === '..' ||
1492 strpos( $r, './' ) === 0 ||
1493 strpos( $r, '../' ) === 0 ||
1494 strpos( $r, '/./' ) !== false ||
1495 strpos( $r, '/../' ) !== false ) )
1500 # We shouldn't need to query the DB for the size.
1501 #$maxSize = $dbr->textFieldSize( 'page', 'page_title' );
1502 if ( strlen( $r ) > 255 ) {
1507 * Normally, all wiki links are forced to have
1508 * an initial capital letter so [[foo]] and [[Foo]]
1509 * point to the same place.
1511 * Don't force it for interwikis, since the other
1512 * site might be case-sensitive.
1514 if( $wgCapitalLinks && $this->mInterwiki
== '') {
1515 $t = $wgContLang->ucfirst( $r );
1521 * Can't make a link to a namespace alone...
1522 * "empty" local links can only be self-links
1523 * with a fragment identifier.
1526 $this->mInterwiki
== '' &&
1527 $this->mNamespace
!= NS_MAIN
) {
1531 // Any remaining initial :s are illegal.
1532 if ( $t !== '' && ':' == $t{0} ) {
1537 $this->mDbkeyform
= $t;
1538 $this->mUrlform
= wfUrlencode( $t );
1540 $this->mTextform
= str_replace( '_', ' ', $t );
1546 * Get a Title object associated with the talk page of this article
1547 * @return Title the object for the talk page
1550 function getTalkPage() {
1551 return Title
::makeTitle( Namespace::getTalk( $this->getNamespace() ), $this->getDBkey() );
1555 * Get a title object associated with the subject page of this
1558 * @return Title the object for the subject page
1561 function getSubjectPage() {
1562 return Title
::makeTitle( Namespace::getSubject( $this->getNamespace() ), $this->getDBkey() );
1566 * Get an array of Title objects linking to this Title
1567 * Also stores the IDs in the link cache.
1569 * @param string $options may be FOR UPDATE
1570 * @return array the Title objects linking here
1573 function getLinksTo( $options = '', $table = 'pagelinks', $prefix = 'pl' ) {
1574 $linkCache =& LinkCache
::singleton();
1575 $id = $this->getArticleID();
1578 $db =& wfGetDB( DB_MASTER
);
1580 $db =& wfGetDB( DB_SLAVE
);
1583 $res = $db->select( array( 'page', $table ),
1584 array( 'page_namespace', 'page_title', 'page_id' ),
1586 "{$prefix}_from=page_id",
1587 "{$prefix}_namespace" => $this->getNamespace(),
1588 "{$prefix}_title" => $this->getDbKey() ),
1589 'Title::getLinksTo',
1593 if ( $db->numRows( $res ) ) {
1594 while ( $row = $db->fetchObject( $res ) ) {
1595 if ( $titleObj = Title
::makeTitle( $row->page_namespace
, $row->page_title
) ) {
1596 $linkCache->addGoodLinkObj( $row->page_id
, $titleObj );
1597 $retVal[] = $titleObj;
1601 $db->freeResult( $res );
1606 * Get an array of Title objects using this Title as a template
1607 * Also stores the IDs in the link cache.
1609 * @param string $options may be FOR UPDATE
1610 * @return array the Title objects linking here
1613 function getTemplateLinksTo( $options = '' ) {
1614 return $this->getLinksTo( $options, 'templatelinks', 'tl' );
1618 * Get an array of Title objects referring to non-existent articles linked from this page
1620 * @param string $options may be FOR UPDATE
1621 * @return array the Title objects
1624 function getBrokenLinksFrom( $options = '' ) {
1626 $db =& wfGetDB( DB_MASTER
);
1628 $db =& wfGetDB( DB_SLAVE
);
1631 $res = $db->safeQuery(
1632 "SELECT pl_namespace, pl_title
1635 ON pl_namespace=page_namespace
1636 AND pl_title=page_title
1638 AND page_namespace IS NULL
1640 $db->tableName( 'pagelinks' ),
1641 $db->tableName( 'page' ),
1642 $this->getArticleId(),
1646 if ( $db->numRows( $res ) ) {
1647 while ( $row = $db->fetchObject( $res ) ) {
1648 $retVal[] = Title
::makeTitle( $row->pl_namespace
, $row->pl_title
);
1651 $db->freeResult( $res );
1657 * Get a list of URLs to purge from the Squid cache when this
1660 * @return array the URLs
1663 function getSquidURLs() {
1665 $this->getInternalURL(),
1666 $this->getInternalURL( 'action=history' )
1671 * Move this page without authentication
1672 * @param Title &$nt the new page Title
1675 function moveNoAuth( &$nt ) {
1676 return $this->moveTo( $nt, false );
1680 * Check whether a given move operation would be valid.
1681 * Returns true if ok, or a message key string for an error message
1682 * if invalid. (Scarrrrry ugly interface this.)
1683 * @param Title &$nt the new title
1684 * @param bool $auth indicates whether $wgUser's permissions
1686 * @return mixed true on success, message name on failure
1689 function isValidMoveOperation( &$nt, $auth = true ) {
1690 if( !$this or !$nt ) {
1691 return 'badtitletext';
1693 if( $this->equals( $nt ) ) {
1696 if( !$this->isMovable() ||
!$nt->isMovable() ) {
1697 return 'immobile_namespace';
1700 $oldid = $this->getArticleID();
1701 $newid = $nt->getArticleID();
1703 if ( strlen( $nt->getDBkey() ) < 1 ) {
1704 return 'articleexists';
1706 if ( ( '' == $this->getDBkey() ) ||
1708 ( '' == $nt->getDBkey() ) ) {
1709 return 'badarticleerror';
1713 !$this->userCanEdit() ||
!$nt->userCanEdit() ||
1714 !$this->userCanMove() ||
!$nt->userCanMove() ) ) {
1715 return 'protectedpage';
1718 # The move is allowed only if (1) the target doesn't exist, or
1719 # (2) the target is a redirect to the source, and has no history
1720 # (so we can undo bad moves right after they're done).
1722 if ( 0 != $newid ) { # Target exists; check for validity
1723 if ( ! $this->isValidMoveTarget( $nt ) ) {
1724 return 'articleexists';
1731 * Move a title to a new location
1732 * @param Title &$nt the new title
1733 * @param bool $auth indicates whether $wgUser's permissions
1735 * @return mixed true on success, message name on failure
1738 function moveTo( &$nt, $auth = true, $reason = '' ) {
1739 $err = $this->isValidMoveOperation( $nt, $auth );
1740 if( is_string( $err ) ) {
1744 $pageid = $this->getArticleID();
1745 if( $nt->exists() ) {
1746 $this->moveOverExistingRedirect( $nt, $reason );
1747 $pageCountChange = 0;
1748 } else { # Target didn't exist, do normal move.
1749 $this->moveToNewTitle( $nt, $reason );
1750 $pageCountChange = 1;
1752 $redirid = $this->getArticleID();
1754 # Fixing category links (those without piped 'alternate' names) to be sorted under the new title
1755 $dbw =& wfGetDB( DB_MASTER
);
1756 $categorylinks = $dbw->tableName( 'categorylinks' );
1757 $sql = "UPDATE $categorylinks SET cl_sortkey=" . $dbw->addQuotes( $nt->getPrefixedText() ) .
1758 " WHERE cl_from=" . $dbw->addQuotes( $pageid ) .
1759 " AND cl_sortkey=" . $dbw->addQuotes( $this->getPrefixedText() );
1760 $dbw->query( $sql, 'SpecialMovepage::doSubmit' );
1764 $oldnamespace = $this->getNamespace() & ~
1;
1765 $newnamespace = $nt->getNamespace() & ~
1;
1766 $oldtitle = $this->getDBkey();
1767 $newtitle = $nt->getDBkey();
1769 if( $oldnamespace != $newnamespace ||
$oldtitle != $newtitle ) {
1770 WatchedItem
::duplicateEntries( $this, $nt );
1773 # Update search engine
1774 $u = new SearchUpdate( $pageid, $nt->getPrefixedDBkey() );
1776 $u = new SearchUpdate( $redirid, $this->getPrefixedDBkey(), '' );
1780 if ( $this->getNamespace() == NS_MAIN
and $nt->getNamespace() != NS_MAIN
) {
1781 # Moved out of main namespace
1782 # not viewed, edited, removing
1783 $u = new SiteStatsUpdate( 0, 1, -1, $pageCountChange);
1784 } elseif ( $this->getNamespace() != NS_MAIN
and $nt->getNamespace() == NS_MAIN
) {
1785 # Moved into main namespace
1786 # not viewed, edited, adding
1787 $u = new SiteStatsUpdate( 0, 1, +
1, $pageCountChange );
1788 } elseif ( $pageCountChange ) {
1790 $u = new SiteStatsUpdate( 0, 0, 0, 1 );
1799 wfRunHooks( 'TitleMoveComplete', array( &$this, &$nt, &$wgUser, $pageid, $redirid ) );
1804 * Move page to a title which is at present a redirect to the
1807 * @param Title &$nt the page to move to, which should currently
1811 function moveOverExistingRedirect( &$nt, $reason = '' ) {
1812 global $wgUseSquid, $wgMwRedir;
1813 $fname = 'Title::moveOverExistingRedirect';
1814 $comment = wfMsgForContent( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() );
1817 $comment .= ": $reason";
1820 $now = wfTimestampNow();
1822 $newid = $nt->getArticleID();
1823 $oldid = $this->getArticleID();
1824 $dbw =& wfGetDB( DB_MASTER
);
1825 $linkCache =& LinkCache
::singleton();
1827 # Delete the old redirect. We don't save it to history since
1828 # by definition if we've got here it's rather uninteresting.
1829 # We have to remove it so that the next step doesn't trigger
1830 # a conflict on the unique namespace+title index...
1831 $dbw->delete( 'page', array( 'page_id' => $newid ), $fname );
1833 # Save a null revision in the page's history notifying of the move
1834 $nullRevision = Revision
::newNullRevision( $dbw, $oldid, $comment, true );
1835 $nullRevId = $nullRevision->insertOn( $dbw );
1837 # Change the name of the target page:
1838 $dbw->update( 'page',
1840 'page_touched' => $dbw->timestamp($now),
1841 'page_namespace' => $nt->getNamespace(),
1842 'page_title' => $nt->getDBkey(),
1843 'page_latest' => $nullRevId,
1845 /* WHERE */ array( 'page_id' => $oldid ),
1848 $linkCache->clearLink( $nt->getPrefixedDBkey() );
1850 # Recreate the redirect, this time in the other direction.
1851 $redirectText = $wgMwRedir->getSynonym( 0 ) . ' [[' . $nt->getPrefixedText() . "]]\n";
1852 $redirectArticle = new Article( $this );
1853 $newid = $redirectArticle->insertOn( $dbw );
1854 $redirectRevision = new Revision( array(
1856 'comment' => $comment,
1857 'text' => $redirectText ) );
1858 $revid = $redirectRevision->insertOn( $dbw );
1859 $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
1860 $linkCache->clearLink( $this->getPrefixedDBkey() );
1863 $log = new LogPage( 'move' );
1864 $log->addEntry( 'move_redir', $this, $reason, array( 1 => $nt->getPrefixedText() ) );
1866 # Now, we record the link from the redirect to the new title.
1867 # It should have no other outgoing links...
1868 $dbw->delete( 'pagelinks', array( 'pl_from' => $newid ), $fname );
1869 $dbw->insert( 'pagelinks',
1871 'pl_from' => $newid,
1872 'pl_namespace' => $nt->getNamespace(),
1873 'pl_title' => $nt->getDbKey() ),
1877 if ( $wgUseSquid ) {
1878 $urls = array_merge( $nt->getSquidURLs(), $this->getSquidURLs() );
1879 $u = new SquidUpdate( $urls );
1885 * Move page to non-existing title.
1886 * @param Title &$nt the new Title
1889 function moveToNewTitle( &$nt, $reason = '' ) {
1892 $fname = 'MovePageForm::moveToNewTitle';
1893 $comment = wfMsgForContent( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() );
1895 $comment .= ": $reason";
1898 $newid = $nt->getArticleID();
1899 $oldid = $this->getArticleID();
1900 $dbw =& wfGetDB( DB_MASTER
);
1901 $now = $dbw->timestamp();
1903 $linkCache =& LinkCache
::singleton();
1905 # Save a null revision in the page's history notifying of the move
1906 $nullRevision = Revision
::newNullRevision( $dbw, $oldid, $comment, true );
1907 $nullRevId = $nullRevision->insertOn( $dbw );
1910 $dbw->update( 'page',
1912 'page_touched' => $now,
1913 'page_namespace' => $nt->getNamespace(),
1914 'page_title' => $nt->getDBkey(),
1915 'page_latest' => $nullRevId,
1917 /* WHERE */ array( 'page_id' => $oldid ),
1921 $linkCache->clearLink( $nt->getPrefixedDBkey() );
1924 $redirectText = $wgMwRedir->getSynonym( 0 ) . ' [[' . $nt->getPrefixedText() . "]]\n";
1925 $redirectArticle = new Article( $this );
1926 $newid = $redirectArticle->insertOn( $dbw );
1927 $redirectRevision = new Revision( array(
1929 'comment' => $comment,
1930 'text' => $redirectText ) );
1931 $revid = $redirectRevision->insertOn( $dbw );
1932 $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
1933 $linkCache->clearLink( $this->getPrefixedDBkey() );
1936 $log = new LogPage( 'move' );
1937 $log->addEntry( 'move', $this, $reason, array( 1 => $nt->getPrefixedText()) );
1939 # Purge caches as per article creation
1940 Article
::onArticleCreate( $nt );
1942 # Record the just-created redirect's linking to the page
1943 $dbw->insert( 'pagelinks',
1945 'pl_from' => $newid,
1946 'pl_namespace' => $nt->getNamespace(),
1947 'pl_title' => $nt->getDBkey() ),
1950 # Non-existent target may have had broken links to it; these must
1951 # now be touched to update link coloring.
1954 # Purge old title from squid
1955 # The new title, and links to the new title, are purged in Article::onArticleCreate()
1956 $titles = $nt->getLinksTo();
1957 if ( $wgUseSquid ) {
1958 $urls = $this->getSquidURLs();
1959 foreach ( $titles as $linkTitle ) {
1960 $urls[] = $linkTitle->getInternalURL();
1962 $u = new SquidUpdate( $urls );
1968 * Checks if $this can be moved to a given Title
1969 * - Selects for update, so don't call it unless you mean business
1971 * @param Title &$nt the new title to check
1974 function isValidMoveTarget( $nt ) {
1976 $fname = 'Title::isValidMoveTarget';
1977 $dbw =& wfGetDB( DB_MASTER
);
1980 $id = $nt->getArticleID();
1981 $obj = $dbw->selectRow( array( 'page', 'revision', 'text'),
1982 array( 'page_is_redirect','old_text','old_flags' ),
1983 array( 'page_id' => $id, 'page_latest=rev_id', 'rev_text_id=old_id' ),
1984 $fname, 'FOR UPDATE' );
1986 if ( !$obj ||
0 == $obj->page_is_redirect
) {
1990 $text = Revision
::getRevisionText( $obj );
1992 # Does the redirect point to the source?
1993 if ( preg_match( "/\\[\\[\\s*([^\\]\\|]*)]]/", $text, $m ) ) {
1994 $redirTitle = Title
::newFromText( $m[1] );
1995 if( !is_object( $redirTitle ) ||
1996 $redirTitle->getPrefixedDBkey() != $this->getPrefixedDBkey() ) {
2004 # Does the article have a history?
2005 $row = $dbw->selectRow( array( 'page', 'revision'),
2007 array( 'page_namespace' => $nt->getNamespace(),
2008 'page_title' => $nt->getDBkey(),
2009 'page_id=rev_page AND page_latest != rev_id'
2010 ), $fname, 'FOR UPDATE'
2013 # Return true if there was no history
2014 return $row === false;
2018 * Create a redirect; fails if the title already exists; does
2021 * @param Title $dest the destination of the redirect
2022 * @param string $comment the comment string describing the move
2023 * @return bool true on success
2026 function createRedirect( $dest, $comment ) {
2027 if ( $this->getArticleID() ) {
2031 $fname = 'Title::createRedirect';
2032 $dbw =& wfGetDB( DB_MASTER
);
2034 $article = new Article( $this );
2035 $newid = $article->insertOn( $dbw );
2036 $revision = new Revision( array(
2038 'comment' => $comment,
2039 'text' => "#REDIRECT [[" . $dest->getPrefixedText() . "]]\n",
2041 $revisionId = $revision->insertOn( $dbw );
2042 $article->updateRevisionOn( $dbw, $revision, 0 );
2045 $dbw->insert( 'pagelinks',
2047 'pl_from' => $newid,
2048 'pl_namespace' => $dest->getNamespace(),
2049 'pl_title' => $dest->getDbKey()
2053 Article
::onArticleCreate( $this );
2058 * Get categories to which this Title belongs and return an array of
2059 * categories' names.
2061 * @return array an array of parents in the form:
2062 * $parent => $currentarticle
2065 function getParentCategories() {
2068 $titlekey = $this->getArticleId();
2069 $dbr =& wfGetDB( DB_SLAVE
);
2070 $categorylinks = $dbr->tableName( 'categorylinks' );
2073 $sql = "SELECT * FROM $categorylinks"
2074 ." WHERE cl_from='$titlekey'"
2075 ." AND cl_from <> '0'"
2076 ." ORDER BY cl_sortkey";
2078 $res = $dbr->query ( $sql ) ;
2080 if($dbr->numRows($res) > 0) {
2081 while ( $x = $dbr->fetchObject ( $res ) )
2082 //$data[] = Title::newFromText($wgContLang->getNSText ( NS_CATEGORY ).':'.$x->cl_to);
2083 $data[$wgContLang->getNSText ( NS_CATEGORY
).':'.$x->cl_to
] = $this->getFullText();
2084 $dbr->freeResult ( $res ) ;
2092 * Get a tree of parent categories
2093 * @param array $children an array with the children in the keys, to check for circular refs
2097 function getParentCategoryTree( $children = array() ) {
2098 $parents = $this->getParentCategories();
2100 if($parents != '') {
2101 foreach($parents as $parent => $current) {
2102 if ( array_key_exists( $parent, $children ) ) {
2103 # Circular reference
2104 $stack[$parent] = array();
2106 $nt = Title
::newFromText($parent);
2107 $stack[$parent] = $nt->getParentCategoryTree( $children +
array($parent => 1) );
2118 * Get an associative array for selecting this title from
2124 function pageCond() {
2125 return array( 'page_namespace' => $this->mNamespace
, 'page_title' => $this->mDbkeyform
);
2129 * Get the revision ID of the previous revision
2131 * @param integer $revision Revision ID. Get the revision that was before this one.
2132 * @return interger $oldrevision|false
2134 function getPreviousRevisionID( $revision ) {
2135 $dbr =& wfGetDB( DB_SLAVE
);
2136 return $dbr->selectField( 'revision', 'rev_id',
2137 'rev_page=' . intval( $this->getArticleId() ) .
2138 ' AND rev_id<' . intval( $revision ) . ' ORDER BY rev_id DESC' );
2142 * Get the revision ID of the next revision
2144 * @param integer $revision Revision ID. Get the revision that was after this one.
2145 * @return interger $oldrevision|false
2147 function getNextRevisionID( $revision ) {
2148 $dbr =& wfGetDB( DB_SLAVE
);
2149 return $dbr->selectField( 'revision', 'rev_id',
2150 'rev_page=' . intval( $this->getArticleId() ) .
2151 ' AND rev_id>' . intval( $revision ) . ' ORDER BY rev_id' );
2155 * Compare with another title.
2157 * @param Title $title
2160 function equals( $title ) {
2161 // Note: === is necessary for proper matching of number-like titles.
2162 return $this->getInterwiki() === $title->getInterwiki()
2163 && $this->getNamespace() == $title->getNamespace()
2164 && $this->getDbkey() === $title->getDbkey();
2168 * Check if page exists
2172 return $this->getArticleId() != 0;
2176 * Should a link should be displayed as a known link, just based on its title?
2178 * Currently, a self-link with a fragment and special pages are in
2179 * this category. Special pages never exist in the database.
2181 function isAlwaysKnown() {
2182 return $this->isExternal() ||
( 0 == $this->mNamespace
&& "" == $this->mDbkeyform
)
2183 || NS_SPECIAL
== $this->mNamespace
;
2187 * Update page_touched timestamps on pages linking to this title.
2188 * In principal, this could be backgrounded and could also do squid
2191 function touchLinks() {
2192 $fname = 'Title::touchLinks';
2194 $dbw =& wfGetDB( DB_MASTER
);
2196 $res = $dbw->select( 'pagelinks',
2199 'pl_namespace' => $this->getNamespace(),
2200 'pl_title' => $this->getDbKey() ),
2203 $toucharr = array();
2204 while( $row = $dbw->fetchObject( $res ) ) {
2205 $toucharr[] = $row->pl_from
;
2207 $dbw->freeResult( $res );
2209 if( $this->getNamespace() == NS_CATEGORY
) {
2210 // Categories show up in a separate set of links as well
2211 $res = $dbw->select( 'categorylinks',
2213 array( 'cl_to' => $this->getDbKey() ),
2215 while( $row = $dbw->fetchObject( $res ) ) {
2216 $toucharr[] = $row->cl_from
;
2218 $dbw->freeResult( $res );
2221 if (!count($toucharr))
2223 $dbw->update( 'page', /* SET */ array( 'page_touched' => $dbw->timestamp() ),
2224 /* WHERE */ array( 'page_id' => $toucharr ),$fname);
2227 function trackbackURL() {
2228 global $wgTitle, $wgScriptPath, $wgServer;
2230 return "$wgServer$wgScriptPath/trackback.php?article="
2231 . htmlspecialchars(urlencode($wgTitle->getPrefixedDBkey()));
2234 function trackbackRDF() {
2235 $url = htmlspecialchars($this->getFullURL());
2236 $title = htmlspecialchars($this->getText());
2237 $tburl = $this->trackbackURL();
2240 <rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"
2241 xmlns:dc=\"http://purl.org/dc/elements/1.1/\"
2242 xmlns:trackback=\"http://madskills.com/public/xml/rss/module/trackback/\">
2245 dc:identifier=\"$url\"
2247 trackback:ping=\"$tburl\" />
2252 * Generate strings used for xml 'id' names in monobook tabs
2255 function getNamespaceKey() {
2256 switch ($this->getNamespace()) {
2259 return 'nstab-main';
2262 return 'nstab-user';
2264 return 'nstab-media';
2266 return 'nstab-special';
2268 case NS_PROJECT_TALK
:
2269 return 'nstab-project';
2272 return 'nstab-image';
2274 case NS_MEDIAWIKI_TALK
:
2275 return 'nstab-mediawiki';
2277 case NS_TEMPLATE_TALK
:
2278 return 'nstab-template';
2281 return 'nstab-help';
2283 case NS_CATEGORY_TALK
:
2284 return 'nstab-category';
2286 return 'nstab-' . strtolower( $this->getSubjectNsText() );