8 if ( !class_exists( 'UtfNormal' ) ) {
9 require_once( dirname(__FILE__
) . '/normal/UtfNormal.php' );
12 define ( 'GAID_FOR_UPDATE', 1 );
14 # Title::newFromTitle maintains a cache to avoid
15 # expensive re-normalization of commonly used titles.
16 # On a batch operation this can become a memory leak
17 # if not bounded. After hitting this many titles,
19 define( 'MW_TITLECACHE_MAX', 1000 );
21 # Constants for pr_cascade bitfield
22 define( 'CASCADE', 1 );
26 * - Represents a title, which may contain an interwiki designation or namespace
27 * - Can fetch various kinds of data from the database, albeit inefficiently.
32 * Static cache variables
34 static private $titleCache=array();
35 static private $interwikiCache=array();
39 * All member variables should be considered private
40 * Please use the accessor functions
47 var $mTextform; # Text form (spaces not underscores) of the main part
48 var $mUrlform; # URL-encoded form of the main part
49 var $mDbkeyform; # Main part with underscores
50 var $mUserCaseDBKey; # DB key with the initial letter in the case specified by the user
51 var $mNamespace; # Namespace index, i.e. one of the NS_xxxx constants
52 var $mInterwiki; # Interwiki prefix (or null string)
53 var $mFragment; # Title fragment (i.e. the bit after the #)
54 var $mArticleID; # Article ID, fetched from the link cache on demand
55 var $mLatestID; # ID of most recent revision
56 var $mRestrictions; # Array of groups allowed to edit this article
57 var $mCascadeRestriction; # Cascade restrictions on this page to included templates and images?
58 var $mRestrictionsExpiry; # When do the restrictions on this page expire?
59 var $mHasCascadingRestrictions; # Are cascading restrictions in effect on this page?
60 var $mCascadeRestrictionSources;# Where are the cascading restrictions coming from on this page?
61 var $mRestrictionsLoaded; # Boolean for initialisation on demand
62 var $mPrefixedText; # Text form including namespace/interwiki, initialised on demand
63 var $mDefaultNamespace; # Namespace index when there is no namespace
64 # Zero except in {{transclusion}} tags
65 var $mWatched; # Is $wgUser watching this page? NULL if unfilled, accessed through userIsWatching()
73 /* private */ function __construct() {
74 $this->mInterwiki
= $this->mUrlform
=
75 $this->mTextform
= $this->mDbkeyform
= '';
76 $this->mArticleID
= -1;
77 $this->mNamespace
= NS_MAIN
;
78 $this->mRestrictionsLoaded
= false;
79 $this->mRestrictions
= array();
80 # Dont change the following, NS_MAIN is hardcoded in several place
82 $this->mDefaultNamespace
= NS_MAIN
;
83 $this->mWatched
= NULL;
84 $this->mLatestID
= false;
85 $this->mOldRestrictions
= false;
89 * Create a new Title from a prefixed DB key
90 * @param string $key The database key, which has underscores
91 * instead of spaces, possibly including namespace and
93 * @return Title the new object, or NULL on an error
95 public static function newFromDBkey( $key ) {
97 $t->mDbkeyform
= $key;
98 if( $t->secureAndSplit() )
105 * Create a new Title from text, such as what one would
106 * find in a link. Decodes any HTML entities in the text.
108 * @param string $text the link text; spaces, prefixes,
109 * and an initial ':' indicating the main namespace
111 * @param int $defaultNamespace the namespace to use if
112 * none is specified by a prefix
113 * @return Title the new object, or NULL on an error
115 public static function newFromText( $text, $defaultNamespace = NS_MAIN
) {
116 if( is_object( $text ) ) {
117 throw new MWException( 'Title::newFromText given an object' );
121 * Wiki pages often contain multiple links to the same page.
122 * Title normalization and parsing can become expensive on
123 * pages with many links, so we can save a little time by
126 * In theory these are value objects and won't get changed...
128 if( $defaultNamespace == NS_MAIN
&& isset( Title
::$titleCache[$text] ) ) {
129 return Title
::$titleCache[$text];
133 * Convert things like é ā or 〗 into real text...
135 $filteredText = Sanitizer
::decodeCharReferences( $text );
138 $t->mDbkeyform
= str_replace( ' ', '_', $filteredText );
139 $t->mDefaultNamespace
= $defaultNamespace;
141 static $cachedcount = 0 ;
142 if( $t->secureAndSplit() ) {
143 if( $defaultNamespace == NS_MAIN
) {
144 if( $cachedcount >= MW_TITLECACHE_MAX
) {
145 # Avoid memory leaks on mass operations...
146 Title
::$titleCache = array();
150 Title
::$titleCache[$text] =& $t;
160 * Create a new Title from URL-encoded text. Ensures that
161 * the given title's length does not exceed the maximum.
162 * @param string $url the title, as might be taken from a URL
163 * @return Title the new object, or NULL on an error
165 public static function newFromURL( $url ) {
166 global $wgLegalTitleChars;
169 # For compatibility with old buggy URLs. "+" is usually not valid in titles,
170 # but some URLs used it as a space replacement and they still come
171 # from some external search tools.
172 if ( strpos( $wgLegalTitleChars, '+' ) === false ) {
173 $url = str_replace( '+', ' ', $url );
176 $t->mDbkeyform
= str_replace( ' ', '_', $url );
177 if( $t->secureAndSplit() ) {
185 * Create a new Title from an article ID
187 * @todo This is inefficiently implemented, the page row is requested
188 * but not used for anything else
190 * @param int $id the page_id corresponding to the Title to create
191 * @return Title the new object, or NULL on an error
193 public static function newFromID( $id ) {
194 $fname = 'Title::newFromID';
195 $dbr = wfGetDB( DB_SLAVE
);
196 $row = $dbr->selectRow( 'page', array( 'page_namespace', 'page_title' ),
197 array( 'page_id' => $id ), $fname );
198 if ( $row !== false ) {
199 $title = Title
::makeTitle( $row->page_namespace
, $row->page_title
);
207 * Make an array of titles from an array of IDs
209 public static function newFromIDs( $ids ) {
210 if ( !count( $ids ) ) {
213 $dbr = wfGetDB( DB_SLAVE
);
214 $res = $dbr->select( 'page', array( 'page_namespace', 'page_title' ),
215 'page_id IN (' . $dbr->makeList( $ids ) . ')', __METHOD__
);
218 while ( $row = $dbr->fetchObject( $res ) ) {
219 $titles[] = Title
::makeTitle( $row->page_namespace
, $row->page_title
);
225 * Create a new Title from a namespace index and a DB key.
226 * It's assumed that $ns and $title are *valid*, for instance when
227 * they came directly from the database or a special page name.
228 * For convenience, spaces are converted to underscores so that
229 * eg user_text fields can be used directly.
231 * @param int $ns the namespace of the article
232 * @param string $title the unprefixed database key form
233 * @return Title the new object
235 public static function &makeTitle( $ns, $title ) {
239 $t->mNamespace
= $ns = intval( $ns );
240 $t->mDbkeyform
= str_replace( ' ', '_', $title );
241 $t->mArticleID
= ( $ns >= 0 ) ?
-1 : 0;
242 $t->mUrlform
= wfUrlencode( $t->mDbkeyform
);
243 $t->mTextform
= str_replace( '_', ' ', $title );
248 * Create a new Title from a namespace index and a DB key.
249 * The parameters will be checked for validity, which is a bit slower
250 * than makeTitle() but safer for user-provided data.
252 * @param int $ns the namespace of the article
253 * @param string $title the database key form
254 * @return Title the new object, or NULL on an error
256 public static function makeTitleSafe( $ns, $title ) {
258 $t->mDbkeyform
= Title
::makeName( $ns, $title );
259 if( $t->secureAndSplit() ) {
267 * Create a new Title for the Main Page
268 * @return Title the new object
270 public static function newMainPage() {
271 $title = Title
::newFromText( wfMsgForContent( 'mainpage' ) );
272 // Don't give fatal errors if the message is broken
274 $title = Title
::newFromText( 'Main Page' );
280 * Extract a redirect destination from a string and return the
281 * Title, or null if the text doesn't contain a valid redirect
283 * @param string $text Text with possible redirect
286 public static function newFromRedirect( $text ) {
287 $redir = MagicWord
::get( 'redirect' );
288 if( $redir->matchStart( $text ) ) {
289 // Extract the first link and see if it's usable
291 if( preg_match( '!\[{2}(.*?)(?:\||\]{2})!', $text, $m ) ) {
292 // Strip preceding colon used to "escape" categories, etc.
293 // and URL-decode links
294 if( strpos( $m[1], '%' ) !== false ) {
295 // Match behavior of inline link parsing here;
296 // don't interpret + as " " most of the time!
297 // It might be safe to just use rawurldecode instead, though.
298 $m[1] = urldecode( ltrim( $m[1], ':' ) );
300 $title = Title
::newFromText( $m[1] );
301 // Redirects to Special:Userlogout are not permitted
302 if( $title instanceof Title
&& !$title->isSpecial( 'Userlogout' ) )
309 #----------------------------------------------------------------------------
311 #----------------------------------------------------------------------------
314 * Get the prefixed DB key associated with an ID
315 * @param int $id the page_id of the article
316 * @return Title an object representing the article, or NULL
317 * if no such article was found
321 function nameOf( $id ) {
322 $fname = 'Title::nameOf';
323 $dbr = wfGetDB( DB_SLAVE
);
325 $s = $dbr->selectRow( 'page', array( 'page_namespace','page_title' ), array( 'page_id' => $id ), $fname );
326 if ( $s === false ) { return NULL; }
328 $n = Title
::makeName( $s->page_namespace
, $s->page_title
);
333 * Get a regex character class describing the legal characters in a link
334 * @return string the list of characters, not delimited
336 public static function legalChars() {
337 global $wgLegalTitleChars;
338 return $wgLegalTitleChars;
342 * Get a string representation of a title suitable for
343 * including in a search index
345 * @param int $ns a namespace index
346 * @param string $title text-form main part
347 * @return string a stripped-down title string ready for the
350 public static function indexTitle( $ns, $title ) {
353 $lc = SearchEngine
::legalSearchChars() . '&#;';
354 $t = $wgContLang->stripForSearch( $title );
355 $t = preg_replace( "/[^{$lc}]+/", ' ', $t );
356 $t = $wgContLang->lc( $t );
359 $t = preg_replace( "/([{$lc}]+)'s( |$)/", "\\1 \\1's ", $t );
360 $t = preg_replace( "/([{$lc}]+)s'( |$)/", "\\1s ", $t );
362 $t = preg_replace( "/\\s+/", ' ', $t );
364 if ( $ns == NS_IMAGE
) {
365 $t = preg_replace( "/ (png|gif|jpg|jpeg|ogg)$/", "", $t );
371 * Make a prefixed DB key from a DB key and a namespace index
372 * @param int $ns numerical representation of the namespace
373 * @param string $title the DB key form the title
374 * @return string the prefixed form of the title
376 public static function makeName( $ns, $title ) {
379 $n = $wgContLang->getNsText( $ns );
380 return $n == '' ?
$title : "$n:$title";
384 * Returns the URL associated with an interwiki prefix
385 * @param string $key the interwiki prefix (e.g. "MeatBall")
386 * @return the associated URL, containing "$1", which should be
387 * replaced by an article title
390 public function getInterwikiLink( $key ) {
391 global $wgMemc, $wgInterwikiExpiry;
392 global $wgInterwikiCache, $wgContLang;
393 $fname = 'Title::getInterwikiLink';
395 $key = $wgContLang->lc( $key );
397 $k = wfMemcKey( 'interwiki', $key );
398 if( array_key_exists( $k, Title
::$interwikiCache ) ) {
399 return Title
::$interwikiCache[$k]->iw_url
;
402 if ($wgInterwikiCache) {
403 return Title
::getInterwikiCached( $key );
406 $s = $wgMemc->get( $k );
407 # Ignore old keys with no iw_local
408 if( $s && isset( $s->iw_local
) && isset($s->iw_trans
)) {
409 Title
::$interwikiCache[$k] = $s;
413 $dbr = wfGetDB( DB_SLAVE
);
414 $res = $dbr->select( 'interwiki',
415 array( 'iw_url', 'iw_local', 'iw_trans' ),
416 array( 'iw_prefix' => $key ), $fname );
421 $s = $dbr->fetchObject( $res );
423 # Cache non-existence: create a blank object and save it to memcached
429 $wgMemc->set( $k, $s, $wgInterwikiExpiry );
430 Title
::$interwikiCache[$k] = $s;
436 * Fetch interwiki prefix data from local cache in constant database
438 * More logic is explained in DefaultSettings
440 * @return string URL of interwiki site
442 public static function getInterwikiCached( $key ) {
443 global $wgInterwikiCache, $wgInterwikiScopes, $wgInterwikiFallbackSite;
447 $db=dba_open($wgInterwikiCache,'r','cdb');
448 /* Resolve site name */
449 if ($wgInterwikiScopes>=3 and !$site) {
450 $site = dba_fetch('__sites:' . wfWikiID(), $db);
452 $site = $wgInterwikiFallbackSite;
454 $value = dba_fetch( wfMemcKey( $key ), $db);
455 if ($value=='' and $wgInterwikiScopes>=3) {
457 $value = dba_fetch("_{$site}:{$key}", $db);
459 if ($value=='' and $wgInterwikiScopes>=2) {
461 $value = dba_fetch("__global:{$key}", $db);
470 list($local,$url)=explode(' ',$value,2);
472 $s->iw_local
=(int)$local;
474 Title
::$interwikiCache[wfMemcKey( 'interwiki', $key )] = $s;
478 * Determine whether the object refers to a page within
481 * @return bool TRUE if this is an in-project interwiki link
482 * or a wikilink, FALSE otherwise
484 public function isLocal() {
485 if ( $this->mInterwiki
!= '' ) {
486 # Make sure key is loaded into cache
487 $this->getInterwikiLink( $this->mInterwiki
);
488 $k = wfMemcKey( 'interwiki', $this->mInterwiki
);
489 return (bool)(Title
::$interwikiCache[$k]->iw_local
);
496 * Determine whether the object refers to a page within
497 * this project and is transcludable.
499 * @return bool TRUE if this is transcludable
501 public function isTrans() {
502 if ($this->mInterwiki
== '')
504 # Make sure key is loaded into cache
505 $this->getInterwikiLink( $this->mInterwiki
);
506 $k = wfMemcKey( 'interwiki', $this->mInterwiki
);
507 return (bool)(Title
::$interwikiCache[$k]->iw_trans
);
511 * Escape a text fragment, say from a link, for a URL
513 static function escapeFragmentForURL( $fragment ) {
514 $fragment = str_replace( ' ', '_', $fragment );
515 $fragment = urlencode( Sanitizer
::decodeCharReferences( $fragment ) );
516 $replaceArray = array(
520 return strtr( $fragment, $replaceArray );
523 #----------------------------------------------------------------------------
525 #----------------------------------------------------------------------------
527 /** Simple accessors */
529 * Get the text form (spaces not underscores) of the main part
532 public function getText() { return $this->mTextform
; }
534 * Get the URL-encoded form of the main part
537 public function getPartialURL() { return $this->mUrlform
; }
539 * Get the main part with underscores
542 public function getDBkey() { return $this->mDbkeyform
; }
544 * Get the namespace index, i.e. one of the NS_xxxx constants
547 public function getNamespace() { return $this->mNamespace
; }
549 * Get the namespace text
552 public function getNsText() {
553 global $wgContLang, $wgCanonicalNamespaceNames;
555 if ( '' != $this->mInterwiki
) {
556 // This probably shouldn't even happen. ohh man, oh yuck.
557 // But for interwiki transclusion it sometimes does.
558 // Shit. Shit shit shit.
560 // Use the canonical namespaces if possible to try to
561 // resolve a foreign namespace.
562 if( isset( $wgCanonicalNamespaceNames[$this->mNamespace
] ) ) {
563 return $wgCanonicalNamespaceNames[$this->mNamespace
];
566 return $wgContLang->getNsText( $this->mNamespace
);
569 * Get the DB key with the initial letter case as specified by the user
571 function getUserCaseDBKey() {
572 return $this->mUserCaseDBKey
;
575 * Get the namespace text of the subject (rather than talk) page
578 public function getSubjectNsText() {
580 return $wgContLang->getNsText( Namespace::getSubject( $this->mNamespace
) );
584 * Get the namespace text of the talk page
587 public function getTalkNsText() {
589 return( $wgContLang->getNsText( Namespace::getTalk( $this->mNamespace
) ) );
593 * Could this title have a corresponding talk page?
596 public function canTalk() {
597 return( Namespace::canTalk( $this->mNamespace
) );
601 * Get the interwiki prefix (or null string)
604 public function getInterwiki() { return $this->mInterwiki
; }
606 * Get the Title fragment (i.e. the bit after the #) in text form
609 public function getFragment() { return $this->mFragment
; }
611 * Get the fragment in URL form, including the "#" character if there is one
614 public function getFragmentForURL() {
615 if ( $this->mFragment
== '' ) {
618 return '#' . Title
::escapeFragmentForURL( $this->mFragment
);
622 * Get the default namespace index, for when there is no namespace
625 public function getDefaultNamespace() { return $this->mDefaultNamespace
; }
628 * Get title for search index
629 * @return string a stripped-down title string ready for the
632 public function getIndexTitle() {
633 return Title
::indexTitle( $this->mNamespace
, $this->mTextform
);
637 * Get the prefixed database key form
638 * @return string the prefixed title, with underscores and
639 * any interwiki and namespace prefixes
641 public function getPrefixedDBkey() {
642 $s = $this->prefix( $this->mDbkeyform
);
643 $s = str_replace( ' ', '_', $s );
648 * Get the prefixed title with spaces.
649 * This is the form usually used for display
650 * @return string the prefixed title, with spaces
652 public function getPrefixedText() {
653 if ( empty( $this->mPrefixedText
) ) { // FIXME: bad usage of empty() ?
654 $s = $this->prefix( $this->mTextform
);
655 $s = str_replace( '_', ' ', $s );
656 $this->mPrefixedText
= $s;
658 return $this->mPrefixedText
;
662 * Get the prefixed title with spaces, plus any fragment
663 * (part beginning with '#')
664 * @return string the prefixed title, with spaces and
665 * the fragment, including '#'
667 public function getFullText() {
668 $text = $this->getPrefixedText();
669 if( '' != $this->mFragment
) {
670 $text .= '#' . $this->mFragment
;
676 * Get the base name, i.e. the leftmost parts before the /
677 * @return string Base name
679 public function getBaseText() {
680 global $wgNamespacesWithSubpages;
681 if( !empty( $wgNamespacesWithSubpages[$this->mNamespace
] ) ) {
682 $parts = explode( '/', $this->getText() );
683 # Don't discard the real title if there's no subpage involved
684 if( count( $parts ) > 1 )
685 unset( $parts[ count( $parts ) - 1 ] );
686 return implode( '/', $parts );
688 return $this->getText();
693 * Get the lowest-level subpage name, i.e. the rightmost part after /
694 * @return string Subpage name
696 public function getSubpageText() {
697 global $wgNamespacesWithSubpages;
698 if( isset( $wgNamespacesWithSubpages[ $this->mNamespace
] ) && $wgNamespacesWithSubpages[ $this->mNamespace
] ) {
699 $parts = explode( '/', $this->mTextform
);
700 return( $parts[ count( $parts ) - 1 ] );
702 return( $this->mTextform
);
707 * Get a URL-encoded form of the subpage text
708 * @return string URL-encoded subpage name
710 public function getSubpageUrlForm() {
711 $text = $this->getSubpageText();
712 $text = wfUrlencode( str_replace( ' ', '_', $text ) );
713 $text = str_replace( '%28', '(', str_replace( '%29', ')', $text ) ); # Clean up the URL; per below, this might not be safe
718 * Get a URL-encoded title (not an actual URL) including interwiki
719 * @return string the URL-encoded form
721 public function getPrefixedURL() {
722 $s = $this->prefix( $this->mDbkeyform
);
723 $s = str_replace( ' ', '_', $s );
725 $s = wfUrlencode ( $s ) ;
727 # Cleaning up URL to make it look nice -- is this safe?
728 $s = str_replace( '%28', '(', $s );
729 $s = str_replace( '%29', ')', $s );
735 * Get a real URL referring to this title, with interwiki link and
738 * @param string $query an optional query string, not used
739 * for interwiki links
740 * @param string $variant language variant of url (for sr, zh..)
741 * @return string the URL
743 public function getFullURL( $query = '', $variant = false ) {
744 global $wgContLang, $wgServer, $wgRequest;
746 if ( '' == $this->mInterwiki
) {
747 $url = $this->getLocalUrl( $query, $variant );
749 // Ugly quick hack to avoid duplicate prefixes (bug 4571 etc)
750 // Correct fix would be to move the prepending elsewhere.
751 if ($wgRequest->getVal('action') != 'render') {
752 $url = $wgServer . $url;
755 $baseUrl = $this->getInterwikiLink( $this->mInterwiki
);
757 $namespace = wfUrlencode( $this->getNsText() );
758 if ( '' != $namespace ) {
759 # Can this actually happen? Interwikis shouldn't be parsed.
760 # Yes! It can in interwiki transclusion. But... it probably shouldn't.
763 $url = str_replace( '$1', $namespace . $this->mUrlform
, $baseUrl );
764 $url = wfAppendQuery( $url, $query );
767 # Finally, add the fragment.
768 $url .= $this->getFragmentForURL();
770 wfRunHooks( 'GetFullURL', array( &$this, &$url, $query ) );
775 * Get a URL with no fragment or server name. If this page is generated
776 * with action=render, $wgServer is prepended.
777 * @param string $query an optional query string; if not specified,
778 * $wgArticlePath will be used.
779 * @param string $variant language variant of url (for sr, zh..)
780 * @return string the URL
782 public function getLocalURL( $query = '', $variant = false ) {
783 global $wgArticlePath, $wgScript, $wgServer, $wgRequest;
784 global $wgVariantArticlePath, $wgContLang, $wgUser;
786 // internal links should point to same variant as current page (only anonymous users)
787 if($variant == false && $wgContLang->hasVariants() && !$wgUser->isLoggedIn()){
788 $pref = $wgContLang->getPreferredVariant(false);
789 if($pref != $wgContLang->getCode())
793 if ( $this->isExternal() ) {
794 $url = $this->getFullURL();
796 // This is currently only used for edit section links in the
797 // context of interwiki transclusion. In theory we should
798 // append the query to the end of any existing query string,
799 // but interwiki transclusion is already broken in that case.
803 $dbkey = wfUrlencode( $this->getPrefixedDBkey() );
804 if ( $query == '' ) {
805 if( $variant != false && $wgContLang->hasVariants() ) {
806 if( $wgVariantArticlePath == false ) {
807 $variantArticlePath = "$wgScript?title=$1&variant=$2"; // default
809 $variantArticlePath = $wgVariantArticlePath;
811 $url = str_replace( '$2', urlencode( $variant ), $variantArticlePath );
812 $url = str_replace( '$1', $dbkey, $url );
814 $url = str_replace( '$1', $dbkey, $wgArticlePath );
817 global $wgActionPaths;
820 if( !empty( $wgActionPaths ) &&
821 preg_match( '/^(.*&|)action=([^&]*)(&(.*)|)$/', $query, $matches ) )
823 $action = urldecode( $matches[2] );
824 if( isset( $wgActionPaths[$action] ) ) {
825 $query = $matches[1];
826 if( isset( $matches[4] ) ) $query .= $matches[4];
827 $url = str_replace( '$1', $dbkey, $wgActionPaths[$action] );
828 if( $query != '' ) $url .= '?' . $query;
831 if ( $url === false ) {
832 if ( $query == '-' ) {
835 $url = "{$wgScript}?title={$dbkey}&{$query}";
839 // FIXME: this causes breakage in various places when we
840 // actually expected a local URL and end up with dupe prefixes.
841 if ($wgRequest->getVal('action') == 'render') {
842 $url = $wgServer . $url;
845 wfRunHooks( 'GetLocalURL', array( &$this, &$url, $query ) );
850 * Get an HTML-escaped version of the URL form, suitable for
851 * using in a link, without a server name or fragment
852 * @param string $query an optional query string
853 * @return string the URL
855 public function escapeLocalURL( $query = '' ) {
856 return htmlspecialchars( $this->getLocalURL( $query ) );
860 * Get an HTML-escaped version of the URL form, suitable for
861 * using in a link, including the server name and fragment
863 * @return string the URL
864 * @param string $query an optional query string
866 public function escapeFullURL( $query = '' ) {
867 return htmlspecialchars( $this->getFullURL( $query ) );
871 * Get the URL form for an internal link.
872 * - Used in various Squid-related code, in case we have a different
873 * internal hostname for the server from the exposed one.
875 * @param string $query an optional query string
876 * @param string $variant language variant of url (for sr, zh..)
877 * @return string the URL
879 public function getInternalURL( $query = '', $variant = false ) {
880 global $wgInternalServer;
881 $url = $wgInternalServer . $this->getLocalURL( $query, $variant );
882 wfRunHooks( 'GetInternalURL', array( &$this, &$url, $query ) );
887 * Get the edit URL for this Title
888 * @return string the URL, or a null string if this is an
891 public function getEditURL() {
892 if ( '' != $this->mInterwiki
) { return ''; }
893 $s = $this->getLocalURL( 'action=edit' );
899 * Get the HTML-escaped displayable text form.
900 * Used for the title field in <a> tags.
901 * @return string the text, including any prefixes
903 public function getEscapedText() {
904 return htmlspecialchars( $this->getPrefixedText() );
908 * Is this Title interwiki?
911 public function isExternal() { return ( '' != $this->mInterwiki
); }
914 * Is this page "semi-protected" - the *only* protection is autoconfirm?
916 * @param string Action to check (default: edit)
919 public function isSemiProtected( $action = 'edit' ) {
920 if( $this->exists() ) {
921 $restrictions = $this->getRestrictions( $action );
922 if( count( $restrictions ) > 0 ) {
923 foreach( $restrictions as $restriction ) {
924 if( strtolower( $restriction ) != 'autoconfirmed' )
933 # If it doesn't exist, it can't be protected
939 * Does the title correspond to a protected article?
940 * @param string $what the action the page is protected from,
941 * by default checks move and edit
944 public function isProtected( $action = '' ) {
945 global $wgRestrictionLevels;
947 # Special pages have inherent protection
948 if( $this->getNamespace() == NS_SPECIAL
)
951 # Check regular protection levels
952 if( $action == 'edit' ||
$action == '' ) {
953 $r = $this->getRestrictions( 'edit' );
954 foreach( $wgRestrictionLevels as $level ) {
955 if( in_array( $level, $r ) && $level != '' ) {
961 if( $action == 'move' ||
$action == '' ) {
962 $r = $this->getRestrictions( 'move' );
963 foreach( $wgRestrictionLevels as $level ) {
964 if( in_array( $level, $r ) && $level != '' ) {
974 * Is $wgUser watching this page?
977 public function userIsWatching() {
980 if ( is_null( $this->mWatched
) ) {
981 if ( NS_SPECIAL
== $this->mNamespace ||
!$wgUser->isLoggedIn()) {
982 $this->mWatched
= false;
984 $this->mWatched
= $wgUser->isWatched( $this );
987 return $this->mWatched
;
991 * Can $wgUser perform $action on this page?
992 * This skips potentially expensive cascading permission checks.
994 * Suitable for use for nonessential UI controls in common cases, but
995 * _not_ for functional access control.
997 * May provide false positives, but should never provide a false negative.
999 * @param string $action action that permission needs to be checked for
1002 public function quickUserCan( $action ) {
1003 return $this->userCan( $action, false );
1007 * Determines if $wgUser is unable to edit this page because it has been protected
1008 * by $wgNamespaceProtection.
1012 public function isNamespaceProtected() {
1013 global $wgNamespaceProtection, $wgUser;
1014 if( isset( $wgNamespaceProtection[ $this->mNamespace
] ) ) {
1015 foreach( (array)$wgNamespaceProtection[ $this->mNamespace
] as $right ) {
1016 if( $right != '' && !$wgUser->isAllowed( $right ) )
1024 * Can $wgUser perform $action on this page?
1025 * @param string $action action that permission needs to be checked for
1026 * @param bool $doExpensiveQueries Set this to false to avoid doing unnecessary queries.
1029 public function userCan( $action, $doExpensiveQueries = true ) {
1031 return ( $this->getUserPermissionsErrorsInternal( $action, $wgUser, $doExpensiveQueries ) === array());
1035 * Can $user perform $action on this page?
1037 * FIXME: This *does not* check throttles (User::pingLimiter()).
1039 * @param string $action action that permission needs to be checked for
1040 * @param User $user user to check
1041 * @param bool $doExpensiveQueries Set this to false to avoid doing unnecessary queries.
1042 * @return array Array of arrays of the arguments to wfMsg to explain permissions problems.
1044 public function getUserPermissionsErrors( $action, $user, $doExpensiveQueries = true ) {
1045 $errors = $this->getUserPermissionsErrorsInternal( $action, $user, $doExpensiveQueries );
1049 global $wgEmailConfirmToEdit;
1051 if ( $wgEmailConfirmToEdit && !$user->isEmailConfirmed() ) {
1052 $errors[] = array( 'confirmedittext' );
1055 if ( $user->isBlockedFrom( $this ) ) {
1056 $block = $user->mBlock
;
1058 // This is from OutputPage::blockedPage
1059 // Copied at r23888 by werdna
1061 $id = $user->blockedBy();
1062 $reason = $user->blockedFor();
1063 if( $reason == '' ) {
1064 $reason = wfMsg( 'blockednoreason' );
1068 if ( is_numeric( $id ) ) {
1069 $name = User
::whoIs( $id );
1074 $link = '[[' . $wgContLang->getNsText( NS_USER
) . ":{$name}|{$name}]]";
1075 $blockid = $block->mId
;
1076 $blockExpiry = $user->mBlock
->mExpiry
;
1077 $blockTimestamp = $wgLang->timeanddate( wfTimestamp( TS_MW
, $user->mBlock
->mTimestamp
), true );
1079 if ( $blockExpiry == 'infinity' ) {
1080 // Entry in database (table ipblocks) is 'infinity' but 'ipboptions' uses 'infinite' or 'indefinite'
1081 $scBlockExpiryOptions = wfMsg( 'ipboptions' );
1083 foreach ( explode( ',', $scBlockExpiryOptions ) as $option ) {
1084 if ( strpos( $option, ':' ) == false )
1087 list ($show, $value) = explode( ":", $option );
1089 if ( $value == 'infinite' ||
$value == 'indefinite' ) {
1090 $blockExpiry = $show;
1095 $blockExpiry = $wgLang->timeanddate( wfTimestamp( TS_MW
, $blockExpiry ), true );
1098 $intended = $user->mBlock
->mAddress
;
1100 $errors[] = array ( ($block->mAuto ?
'autoblockedtext' : 'blockedtext'), $link, $reason, $ip, $name, $blockid, $blockExpiry, $intended, $blockTimestamp );
1107 * Can $user perform $action on this page? This is an internal function,
1108 * which checks ONLY that previously checked by userCan (i.e. it leaves out
1109 * checks on wfReadOnly() and blocks)
1111 * @param string $action action that permission needs to be checked for
1112 * @param User $user user to check
1113 * @param bool $doExpensiveQueries Set this to false to avoid doing unnecessary queries.
1114 * @return array Array of arrays of the arguments to wfMsg to explain permissions problems.
1116 private function getUserPermissionsErrorsInternal( $action, $user, $doExpensiveQueries = true ) {
1117 wfProfileIn( __METHOD__
);
1121 // Use getUserPermissionsErrors instead
1122 if ( !wfRunHooks( 'userCan', array( &$this, &$user, $action, &$result ) ) ) {
1123 return $result ?
array() : array( array( 'badaccess-group0' ) );
1126 if (!wfRunHooks( 'getUserPermissionsErrors', array( &$this, &$user, $action, &$result ) ) ) {
1127 if ($result != array() && is_array($result) && !is_array($result[0]))
1128 $errors[] = $result; # A single array representing an error
1129 else if (is_array($result) && is_array($result[0]))
1130 $errors = array_merge( $errors, $result ); # A nested array representing multiple errors
1131 else if ($result != '' && $result != null && $result !== true && $result !== false)
1132 $errors[] = array($result); # A string representing a message-id
1133 else if ($result === false )
1134 $errors[] = array('badaccess-group0'); # a generic "We don't want them to do that"
1136 if ($doExpensiveQueries && !wfRunHooks( 'getUserPermissionsErrorsExpensive', array( &$this, &$user, $action, &$result ) ) ) {
1137 if ($result != array() && is_array($result) && !is_array($result[0]))
1138 $errors[] = $result; # A single array representing an error
1139 else if (is_array($result) && is_array($result[0]))
1140 $errors = array_merge( $errors, $result ); # A nested array representing multiple errors
1141 else if ($result != '' && $result != null && $result !== true && $result !== false)
1142 $errors[] = array($result); # A string representing a message-id
1143 else if ($result === false )
1144 $errors[] = array('badaccess-group0'); # a generic "We don't want them to do that"
1147 if( NS_SPECIAL
== $this->mNamespace
) {
1148 $errors[] = array('ns-specialprotected');
1151 if ( $this->isNamespaceProtected() ) {
1152 $ns = $this->getNamespace() == NS_MAIN
1153 ?
wfMsg( 'nstab-main' )
1154 : $this->getNsText();
1155 $errors[] = (NS_MEDIAWIKI
== $this->mNamespace
1156 ?
array('protectedinterface')
1157 : array( 'namespaceprotected', $ns ) );
1160 if( $this->mDbkeyform
== '_' ) {
1161 # FIXME: Is this necessary? Shouldn't be allowed anyway...
1162 $errors[] = array('badaccess-group0');
1165 # protect css/js subpages of user pages
1166 # XXX: this might be better using restrictions
1167 # XXX: Find a way to work around the php bug that prevents using $this->userCanEditCssJsSubpage() from working
1168 if( $this->isCssJsSubpage()
1169 && !$user->isAllowed('editusercssjs')
1170 && !preg_match('/^'.preg_quote($user->getName(), '/').'\//', $this->mTextform
) ) {
1171 $errors[] = array('customcssjsprotected');
1174 if ( $doExpensiveQueries && !$this->isCssJsSubpage() ) {
1175 # We /could/ use the protection level on the source page, but it's fairly ugly
1176 # as we have to establish a precedence hierarchy for pages included by multiple
1177 # cascade-protected pages. So just restrict it to people with 'protect' permission,
1178 # as they could remove the protection anyway.
1179 list( $cascadingSources, $restrictions ) = $this->getCascadeProtectionSources();
1180 # Cascading protection depends on more than this page...
1181 # Several cascading protected pages may include this page...
1182 # Check each cascading level
1183 # This is only for protection restrictions, not for all actions
1184 if( $cascadingSources > 0 && isset($restrictions[$action]) ) {
1185 foreach( $restrictions[$action] as $right ) {
1186 $right = ( $right == 'sysop' ) ?
'protect' : $right;
1187 if( '' != $right && !$user->isAllowed( $right ) ) {
1189 foreach( $cascadingSources as $page )
1190 $pages .= '* [[:' . $page->getPrefixedText() . "]]\n";
1191 $errors[] = array( 'cascadeprotected', count( $cascadingSources ), $pages );
1197 foreach( $this->getRestrictions($action) as $right ) {
1198 // Backwards compatibility, rewrite sysop -> protect
1199 if ( $right == 'sysop' ) {
1202 if( '' != $right && !$user->isAllowed( $right ) ) {
1203 $errors[] = array( 'protectedpagetext', $right );
1207 if ($action == 'protect') {
1208 if ($this->getUserPermissionsErrors('edit', $user) != array()) {
1209 $errors[] = array( 'protect-cantedit' ); // If they can't edit, they shouldn't protect.
1213 if ($action == 'create') {
1214 $title_protection = $this->getTitleProtection();
1216 if (is_array($title_protection)) {
1217 extract($title_protection);
1219 if ($pt_create_perm == 'sysop')
1220 $pt_create_perm = 'protect';
1222 if ($pt_create_perm == '' ||
!$user->isAllowed($pt_create_perm)) {
1223 $errors[] = array ( 'titleprotected', User
::whoIs($pt_user), $pt_reason );
1227 if( ( $this->isTalkPage() && !$user->isAllowed( 'createtalk' ) ) ||
1228 ( !$this->isTalkPage() && !$user->isAllowed( 'createpage' ) ) ) {
1229 $errors[] = $user->isAnon() ?
array ('nocreatetext') : array ('nocreate-loggedin');
1231 } elseif( $action == 'move' && !( $this->isMovable() && $user->isAllowed( 'move' ) ) ) {
1232 $errors[] = $user->isAnon() ?
array ( 'movenologintext' ) : array ('movenotallowed');
1233 } elseif ( !$user->isAllowed( $action ) ) {
1236 global $wgGroupPermissions;
1237 foreach( $wgGroupPermissions as $key => $value ) {
1238 if( isset( $value[$action] ) && $value[$action] == true ) {
1239 $groupName = User
::getGroupName( $key );
1240 $groupPage = User
::getGroupPage( $key );
1242 $groups[] = '[['.$groupPage->getPrefixedText().'|'.$groupName.']]';
1244 $groups[] = $groupName;
1248 $n = count( $groups );
1249 $groups = implode( ', ', $groups );
1254 $return = array( "badaccess-group$n", $groups );
1257 $return = array( 'badaccess-groups', $groups );
1259 $errors[] = $return;
1262 wfProfileOut( __METHOD__
);
1267 * Is this title subject to title protection?
1268 * @return mixed An associative array representing any existent title
1269 * protection, or false if there's none.
1271 private function getTitleProtection() {
1272 // Can't protect pages in special namespaces
1273 if ( $this->getNamespace() < 0 ) {
1277 $dbr = wfGetDB( DB_SLAVE
);
1278 $res = $dbr->select( 'protected_titles', '*',
1279 array ('pt_namespace' => $this->getNamespace(), 'pt_title' => $this->getDBkey()) );
1281 if ($row = $dbr->fetchRow( $res )) {
1288 public function updateTitleProtection( $create_perm, $reason, $expiry ) {
1289 global $wgGroupPermissions,$wgUser,$wgContLang;
1291 if ($create_perm == implode(',',$this->getRestrictions('create'))
1292 && $expiry == $this->mRestrictionsExpiry
) {
1297 list ($namespace, $title) = array( $this->getNamespace(), $this->getDBkey() );
1299 $dbw = wfGetDB( DB_MASTER
);
1301 $encodedExpiry = Block
::encodeExpiry($expiry, $dbw );
1303 $expiry_description = '';
1304 if ( $encodedExpiry != 'infinity' ) {
1305 $expiry_description = ' (' . wfMsgForContent( 'protect-expiring', $wgContLang->timeanddate( $expiry ) ).')';
1308 # Update protection table
1309 if ($create_perm != '' ) {
1310 $dbw->replace( 'protected_titles', array(array('pt_namespace', 'pt_title')),
1311 array( 'pt_namespace' => $namespace, 'pt_title' => $title
1312 , 'pt_create_perm' => $create_perm
1313 , 'pt_timestamp' => Block
::encodeExpiry(wfTimestampNow(), $dbw)
1314 , 'pt_expiry' => $encodedExpiry
1315 , 'pt_user' => $wgUser->getId(), 'pt_reason' => $reason ), __METHOD__
);
1317 $dbw->delete( 'protected_titles', array( 'pt_namespace' => $namespace,
1318 'pt_title' => $title ), __METHOD__
);
1320 # Update the protection log
1321 $log = new LogPage( 'protect' );
1323 if( $create_perm ) {
1324 $log->addEntry( $this->mRestrictions
['create'] ?
'modify' : 'protect', $this, trim( $reason . " [create=$create_perm] $expiry_description" ) );
1326 $log->addEntry( 'unprotect', $this, $reason );
1333 * Remove any title protection (due to page existing
1335 public function deleteTitleProtection() {
1336 $dbw = wfGetDB( DB_MASTER
);
1338 $dbw->delete( 'protected_titles',
1339 array ('pt_namespace' => $this->getNamespace(), 'pt_title' => $this->getDBkey()), __METHOD__
);
1343 * Can $wgUser edit this page?
1345 * @deprecated use userCan('edit')
1347 public function userCanEdit( $doExpensiveQueries = true ) {
1348 return $this->userCan( 'edit', $doExpensiveQueries );
1352 * Can $wgUser create this page?
1354 * @deprecated use userCan('create')
1356 public function userCanCreate( $doExpensiveQueries = true ) {
1357 return $this->userCan( 'create', $doExpensiveQueries );
1361 * Can $wgUser move this page?
1363 * @deprecated use userCan('move')
1365 public function userCanMove( $doExpensiveQueries = true ) {
1366 return $this->userCan( 'move', $doExpensiveQueries );
1370 * Would anybody with sufficient privileges be able to move this page?
1371 * Some pages just aren't movable.
1375 public function isMovable() {
1376 return Namespace::isMovable( $this->getNamespace() )
1377 && $this->getInterwiki() == '';
1381 * Can $wgUser read this page?
1383 * @todo fold these checks into userCan()
1385 public function userCanRead() {
1386 global $wgUser, $wgGroupPermissions;
1388 # Shortcut for public wikis, allows skipping quite a bit of code path
1389 if ($wgGroupPermissions['*']['read'])
1393 wfRunHooks( 'userCan', array( &$this, &$wgUser, 'read', &$result ) );
1394 if ( $result !== null ) {
1398 if( $wgUser->isAllowed( 'read' ) ) {
1401 global $wgWhitelistRead;
1404 * Always grant access to the login page.
1405 * Even anons need to be able to log in.
1407 if( $this->isSpecial( 'Userlogin' ) ||
$this->isSpecial( 'Resetpass' ) ) {
1412 * Bail out if there isn't whitelist
1414 if( !is_array($wgWhitelistRead) ) {
1419 * Check for explicit whitelisting
1421 $name = $this->getPrefixedText();
1422 if( in_array( $name, $wgWhitelistRead, true ) )
1426 * Old settings might have the title prefixed with
1427 * a colon for main-namespace pages
1429 if( $this->getNamespace() == NS_MAIN
) {
1430 if( in_array( ':' . $name, $wgWhitelistRead ) )
1435 * If it's a special page, ditch the subpage bit
1438 if( $this->getNamespace() == NS_SPECIAL
) {
1439 $name = $this->getDBkey();
1440 list( $name, /* $subpage */) = SpecialPage
::resolveAliasWithSubpage( $name );
1441 if ( $name === false ) {
1442 # Invalid special page, but we show standard login required message
1446 $pure = SpecialPage
::getTitleFor( $name )->getPrefixedText();
1447 if( in_array( $pure, $wgWhitelistRead, true ) )
1456 * Is this a talk page of some sort?
1459 public function isTalkPage() {
1460 return Namespace::isTalk( $this->getNamespace() );
1464 * Is this a subpage?
1467 public function isSubpage() {
1468 global $wgNamespacesWithSubpages;
1470 if( isset( $wgNamespacesWithSubpages[ $this->mNamespace
] ) ) {
1471 return ( strpos( $this->getText(), '/' ) !== false && $wgNamespacesWithSubpages[ $this->mNamespace
] == true );
1478 * Could this page contain custom CSS or JavaScript, based
1483 public function isCssOrJsPage() {
1484 return $this->mNamespace
== NS_MEDIAWIKI
1485 && preg_match( '!\.(?:css|js)$!u', $this->mTextform
) > 0;
1489 * Is this a .css or .js subpage of a user page?
1492 public function isCssJsSubpage() {
1493 return ( NS_USER
== $this->mNamespace
and preg_match("/\\/.*\\.(?:css|js)$/", $this->mTextform
) );
1496 * Is this a *valid* .css or .js subpage of a user page?
1497 * Check that the corresponding skin exists
1499 public function isValidCssJsSubpage() {
1500 if ( $this->isCssJsSubpage() ) {
1501 $skinNames = Skin
::getSkinNames();
1502 return array_key_exists( $this->getSkinFromCssJsSubpage(), $skinNames );
1508 * Trim down a .css or .js subpage title to get the corresponding skin name
1510 public function getSkinFromCssJsSubpage() {
1511 $subpage = explode( '/', $this->mTextform
);
1512 $subpage = $subpage[ count( $subpage ) - 1 ];
1513 return( str_replace( array( '.css', '.js' ), array( '', '' ), $subpage ) );
1516 * Is this a .css subpage of a user page?
1519 public function isCssSubpage() {
1520 return ( NS_USER
== $this->mNamespace
and preg_match("/\\/.*\\.css$/", $this->mTextform
) );
1523 * Is this a .js subpage of a user page?
1526 public function isJsSubpage() {
1527 return ( NS_USER
== $this->mNamespace
and preg_match("/\\/.*\\.js$/", $this->mTextform
) );
1530 * Protect css/js subpages of user pages: can $wgUser edit
1534 * @todo XXX: this might be better using restrictions
1536 public function userCanEditCssJsSubpage() {
1538 return ( $wgUser->isAllowed('editusercssjs') or preg_match('/^'.preg_quote($wgUser->getName(), '/').'\//', $this->mTextform
) );
1542 * Cascading protection: Return true if cascading restrictions apply to this page, false if not.
1544 * @return bool If the page is subject to cascading restrictions.
1546 public function isCascadeProtected() {
1547 list( $sources, /* $restrictions */ ) = $this->getCascadeProtectionSources( false );
1548 return ( $sources > 0 );
1552 * Cascading protection: Get the source of any cascading restrictions on this page.
1554 * @param $get_pages bool Whether or not to retrieve the actual pages that the restrictions have come from.
1555 * @return array( mixed title array, restriction array)
1556 * Array of the Title objects of the pages from which cascading restrictions have come, false for none, or true if such restrictions exist, but $get_pages was not set.
1557 * The restriction array is an array of each type, each of which contains an array of unique groups
1559 public function getCascadeProtectionSources( $get_pages = true ) {
1560 global $wgEnableCascadingProtection, $wgRestrictionTypes;
1562 # Define our dimension of restrictions types
1563 $pagerestrictions = array();
1564 foreach( $wgRestrictionTypes as $action )
1565 $pagerestrictions[$action] = array();
1567 if (!$wgEnableCascadingProtection)
1568 return array( false, $pagerestrictions );
1570 if ( isset( $this->mCascadeSources
) && $get_pages ) {
1571 return array( $this->mCascadeSources
, $this->mCascadingRestrictions
);
1572 } else if ( isset( $this->mHasCascadingRestrictions
) && !$get_pages ) {
1573 return array( $this->mHasCascadingRestrictions
, $pagerestrictions );
1576 wfProfileIn( __METHOD__
);
1578 $dbr = wfGetDb( DB_SLAVE
);
1580 if ( $this->getNamespace() == NS_IMAGE
) {
1581 $tables = array ('imagelinks', 'page_restrictions');
1582 $where_clauses = array(
1583 'il_to' => $this->getDBkey(),
1585 'pr_cascade' => 1 );
1587 $tables = array ('templatelinks', 'page_restrictions');
1588 $where_clauses = array(
1589 'tl_namespace' => $this->getNamespace(),
1590 'tl_title' => $this->getDBkey(),
1592 'pr_cascade' => 1 );
1596 $cols = array('pr_page', 'page_namespace', 'page_title', 'pr_expiry', 'pr_type', 'pr_level' );
1597 $where_clauses[] = 'page_id=pr_page';
1600 $cols = array( 'pr_expiry' );
1603 $res = $dbr->select( $tables, $cols, $where_clauses, __METHOD__
);
1605 $sources = $get_pages ?
array() : false;
1606 $now = wfTimestampNow();
1607 $purgeExpired = false;
1609 while( $row = $dbr->fetchObject( $res ) ) {
1610 $expiry = Block
::decodeExpiry( $row->pr_expiry
);
1611 if( $expiry > $now ) {
1613 $page_id = $row->pr_page
;
1614 $page_ns = $row->page_namespace
;
1615 $page_title = $row->page_title
;
1616 $sources[$page_id] = Title
::makeTitle($page_ns, $page_title);
1617 # Add groups needed for each restriction type if its not already there
1618 # Make sure this restriction type still exists
1619 if ( isset($pagerestrictions[$row->pr_type
]) && !in_array($row->pr_level
, $pagerestrictions[$row->pr_type
]) ) {
1620 $pagerestrictions[$row->pr_type
][]=$row->pr_level
;
1626 // Trigger lazy purge of expired restrictions from the db
1627 $purgeExpired = true;
1630 if( $purgeExpired ) {
1631 Title
::purgeExpiredRestrictions();
1634 wfProfileOut( __METHOD__
);
1637 $this->mCascadeSources
= $sources;
1638 $this->mCascadingRestrictions
= $pagerestrictions;
1640 $this->mHasCascadingRestrictions
= $sources;
1643 return array( $sources, $pagerestrictions );
1646 function areRestrictionsCascading() {
1647 if (!$this->mRestrictionsLoaded
) {
1648 $this->loadRestrictions();
1651 return $this->mCascadeRestriction
;
1655 * Loads a string into mRestrictions array
1656 * @param resource $res restrictions as an SQL result.
1658 private function loadRestrictionsFromRow( $res, $oldFashionedRestrictions = NULL ) {
1659 $dbr = wfGetDb( DB_SLAVE
);
1661 $this->mRestrictions
['edit'] = array();
1662 $this->mRestrictions
['move'] = array();
1663 $this->mCascadeRestriction
= false;
1664 $this->mRestrictionsExpiry
= Block
::decodeExpiry('');
1666 # Backwards-compatibility: also load the restrictions from the page record (old format).
1668 if ( $oldFashionedRestrictions == NULL ) {
1669 $oldFashionedRestrictions = $dbr->selectField( 'page', 'page_restrictions', array( 'page_id' => $this->getArticleId() ), __METHOD__
);
1672 if ($oldFashionedRestrictions != '') {
1674 foreach( explode( ':', trim( $oldFashionedRestrictions ) ) as $restrict ) {
1675 $temp = explode( '=', trim( $restrict ) );
1676 if(count($temp) == 1) {
1677 // old old format should be treated as edit/move restriction
1678 $this->mRestrictions
["edit"] = explode( ',', trim( $temp[0] ) );
1679 $this->mRestrictions
["move"] = explode( ',', trim( $temp[0] ) );
1681 $this->mRestrictions
[$temp[0]] = explode( ',', trim( $temp[1] ) );
1685 $this->mOldRestrictions
= true;
1689 if( $dbr->numRows( $res ) ) {
1690 # Current system - load second to make them override.
1691 $now = wfTimestampNow();
1692 $purgeExpired = false;
1694 while ($row = $dbr->fetchObject( $res ) ) {
1695 # Cycle through all the restrictions.
1697 // This code should be refactored, now that it's being used more generally,
1698 // But I don't really see any harm in leaving it in Block for now -werdna
1699 $expiry = Block
::decodeExpiry( $row->pr_expiry
);
1701 // Only apply the restrictions if they haven't expired!
1702 if ( !$expiry ||
$expiry > $now ) {
1703 $this->mRestrictionsExpiry
= $expiry;
1704 $this->mRestrictions
[$row->pr_type
] = explode( ',', trim( $row->pr_level
) );
1706 $this->mCascadeRestriction |
= $row->pr_cascade
;
1708 // Trigger a lazy purge of expired restrictions
1709 $purgeExpired = true;
1713 if( $purgeExpired ) {
1714 Title
::purgeExpiredRestrictions();
1718 $this->mRestrictionsLoaded
= true;
1721 public function loadRestrictions( $oldFashionedRestrictions = NULL ) {
1722 if( !$this->mRestrictionsLoaded
) {
1723 if ($this->exists()) {
1724 $dbr = wfGetDB( DB_SLAVE
);
1726 $res = $dbr->select( 'page_restrictions', '*',
1727 array ( 'pr_page' => $this->getArticleId() ), __METHOD__
);
1729 $this->loadRestrictionsFromRow( $res, $oldFashionedRestrictions );
1731 $title_protection = $this->getTitleProtection();
1733 if (is_array($title_protection)) {
1734 extract($title_protection);
1736 $now = wfTimestampNow();
1737 $expiry = Block
::decodeExpiry($pt_expiry);
1739 if (!$expiry ||
$expiry > $now) {
1740 // Apply the restrictions
1741 $this->mRestrictionsExpiry
= $expiry;
1742 $this->mRestrictions
['create'] = explode(',', trim($pt_create_perm) );
1743 } else { // Get rid of the old restrictions
1744 Title
::purgeExpiredRestrictions();
1747 $this->mRestrictionsLoaded
= true;
1753 * Purge expired restrictions from the page_restrictions table
1755 static function purgeExpiredRestrictions() {
1756 $dbw = wfGetDB( DB_MASTER
);
1757 $dbw->delete( 'page_restrictions',
1758 array( 'pr_expiry < ' . $dbw->addQuotes( $dbw->timestamp() ) ),
1761 $dbw->delete( 'protected_titles',
1762 array( 'pt_expiry < ' . $dbw->addQuotes( $dbw->timestamp() ) ),
1767 * Accessor/initialisation for mRestrictions
1769 * @param string $action action that permission needs to be checked for
1770 * @return array the array of groups allowed to edit this article
1772 public function getRestrictions( $action ) {
1773 if( !$this->mRestrictionsLoaded
) {
1774 $this->loadRestrictions();
1776 return isset( $this->mRestrictions
[$action] )
1777 ?
$this->mRestrictions
[$action]
1782 * Is there a version of this page in the deletion archive?
1783 * @return int the number of archived revisions
1785 public function isDeleted() {
1786 $fname = 'Title::isDeleted';
1787 if ( $this->getNamespace() < 0 ) {
1790 $dbr = wfGetDB( DB_SLAVE
);
1791 $n = $dbr->selectField( 'archive', 'COUNT(*)', array( 'ar_namespace' => $this->getNamespace(),
1792 'ar_title' => $this->getDBkey() ), $fname );
1793 if( $this->getNamespace() == NS_IMAGE
) {
1794 $n +
= $dbr->selectField( 'filearchive', 'COUNT(*)',
1795 array( 'fa_name' => $this->getDBkey() ), $fname );
1802 * Get the article ID for this Title from the link cache,
1803 * adding it if necessary
1804 * @param int $flags a bit field; may be GAID_FOR_UPDATE to select
1806 * @return int the ID
1808 public function getArticleID( $flags = 0 ) {
1809 $linkCache =& LinkCache
::singleton();
1810 if ( $flags & GAID_FOR_UPDATE
) {
1811 $oldUpdate = $linkCache->forUpdate( true );
1812 $this->mArticleID
= $linkCache->addLinkObj( $this );
1813 $linkCache->forUpdate( $oldUpdate );
1815 if ( -1 == $this->mArticleID
) {
1816 $this->mArticleID
= $linkCache->addLinkObj( $this );
1819 return $this->mArticleID
;
1822 public function getLatestRevID() {
1823 if ($this->mLatestID
!== false)
1824 return $this->mLatestID
;
1826 $db = wfGetDB(DB_SLAVE
);
1827 return $this->mLatestID
= $db->selectField( 'revision',
1829 array('rev_page' => $this->getArticleID()),
1830 'Title::getLatestRevID' );
1834 * This clears some fields in this object, and clears any associated
1835 * keys in the "bad links" section of the link cache.
1837 * - This is called from Article::insertNewArticle() to allow
1838 * loading of the new page_id. It's also called from
1839 * Article::doDeleteArticle()
1841 * @param int $newid the new Article ID
1843 public function resetArticleID( $newid ) {
1844 $linkCache =& LinkCache
::singleton();
1845 $linkCache->clearBadLink( $this->getPrefixedDBkey() );
1847 if ( 0 == $newid ) { $this->mArticleID
= -1; }
1848 else { $this->mArticleID
= $newid; }
1849 $this->mRestrictionsLoaded
= false;
1850 $this->mRestrictions
= array();
1854 * Updates page_touched for this page; called from LinksUpdate.php
1855 * @return bool true if the update succeded
1857 public function invalidateCache() {
1858 global $wgUseFileCache;
1860 if ( wfReadOnly() ) {
1864 $dbw = wfGetDB( DB_MASTER
);
1865 $success = $dbw->update( 'page',
1867 'page_touched' => $dbw->timestamp()
1868 ), array( /* WHERE */
1869 'page_namespace' => $this->getNamespace() ,
1870 'page_title' => $this->getDBkey()
1871 ), 'Title::invalidateCache'
1874 if ($wgUseFileCache) {
1875 $cache = new HTMLFileCache($this);
1876 @unlink
($cache->fileCacheName());
1883 * Prefix some arbitrary text with the namespace or interwiki prefix
1886 * @param string $name the text
1887 * @return string the prefixed text
1890 /* private */ function prefix( $name ) {
1892 if ( '' != $this->mInterwiki
) {
1893 $p = $this->mInterwiki
. ':';
1895 if ( 0 != $this->mNamespace
) {
1896 $p .= $this->getNsText() . ':';
1902 * Secure and split - main initialisation function for this object
1904 * Assumes that mDbkeyform has been set, and is urldecoded
1905 * and uses underscores, but not otherwise munged. This function
1906 * removes illegal characters, splits off the interwiki and
1907 * namespace prefixes, sets the other forms, and canonicalizes
1909 * @return bool true on success
1911 private function secureAndSplit() {
1912 global $wgContLang, $wgLocalInterwiki, $wgCapitalLinks;
1915 static $rxTc = false;
1917 # Matching titles will be held as illegal.
1919 # Any character not allowed is forbidden...
1920 '[^' . Title
::legalChars() . ']' .
1921 # URL percent encoding sequences interfere with the ability
1922 # to round-trip titles -- you can't link to them consistently.
1923 '|%[0-9A-Fa-f]{2}' .
1924 # XML/HTML character references produce similar issues.
1925 '|&[A-Za-z0-9\x80-\xff]+;' .
1927 '|&#x[0-9A-Fa-f]+;' .
1931 $this->mInterwiki
= $this->mFragment
= '';
1932 $this->mNamespace
= $this->mDefaultNamespace
; # Usually NS_MAIN
1934 $dbkey = $this->mDbkeyform
;
1936 # Strip Unicode bidi override characters.
1937 # Sometimes they slip into cut-n-pasted page titles, where the
1938 # override chars get included in list displays.
1939 $dbkey = str_replace( "\xE2\x80\x8E", '', $dbkey ); // 200E LEFT-TO-RIGHT MARK
1940 $dbkey = str_replace( "\xE2\x80\x8F", '', $dbkey ); // 200F RIGHT-TO-LEFT MARK
1942 # Clean up whitespace
1944 $dbkey = preg_replace( '/[ _]+/', '_', $dbkey );
1945 $dbkey = trim( $dbkey, '_' );
1947 if ( '' == $dbkey ) {
1951 if( false !== strpos( $dbkey, UTF8_REPLACEMENT
) ) {
1952 # Contained illegal UTF-8 sequences or forbidden Unicode chars.
1956 $this->mDbkeyform
= $dbkey;
1958 # Initial colon indicates main namespace rather than specified default
1959 # but should not create invalid {ns,title} pairs such as {0,Project:Foo}
1960 if ( ':' == $dbkey{0} ) {
1961 $this->mNamespace
= NS_MAIN
;
1962 $dbkey = substr( $dbkey, 1 ); # remove the colon but continue processing
1963 $dbkey = trim( $dbkey, '_' ); # remove any subsequent whitespace
1966 # Namespace or interwiki prefix
1970 if ( preg_match( "/^(.+?)_*:_*(.*)$/S", $dbkey, $m ) ) {
1972 if ( $ns = $wgContLang->getNsIndex( $p )) {
1973 # Ordinary namespace
1975 $this->mNamespace
= $ns;
1976 } elseif( $this->getInterwikiLink( $p ) ) {
1978 # Can't make a local interwiki link to an interwiki link.
1979 # That's just crazy!
1985 $this->mInterwiki
= $wgContLang->lc( $p );
1987 # Redundant interwiki prefix to the local wiki
1988 if ( 0 == strcasecmp( $this->mInterwiki
, $wgLocalInterwiki ) ) {
1989 if( $dbkey == '' ) {
1990 # Can't have an empty self-link
1993 $this->mInterwiki
= '';
1995 # Do another namespace split...
1999 # If there's an initial colon after the interwiki, that also
2000 # resets the default namespace
2001 if ( $dbkey !== '' && $dbkey[0] == ':' ) {
2002 $this->mNamespace
= NS_MAIN
;
2003 $dbkey = substr( $dbkey, 1 );
2006 # If there's no recognized interwiki or namespace,
2007 # then let the colon expression be part of the title.
2012 # We already know that some pages won't be in the database!
2014 if ( '' != $this->mInterwiki || NS_SPECIAL
== $this->mNamespace
) {
2015 $this->mArticleID
= 0;
2017 $fragment = strstr( $dbkey, '#' );
2018 if ( false !== $fragment ) {
2019 $this->setFragment( $fragment );
2020 $dbkey = substr( $dbkey, 0, strlen( $dbkey ) - strlen( $fragment ) );
2021 # remove whitespace again: prevents "Foo_bar_#"
2022 # becoming "Foo_bar_"
2023 $dbkey = preg_replace( '/_*$/', '', $dbkey );
2026 # Reject illegal characters.
2028 if( preg_match( $rxTc, $dbkey ) ) {
2033 * Pages with "/./" or "/../" appearing in the URLs will
2034 * often be unreachable due to the way web browsers deal
2035 * with 'relative' URLs. Forbid them explicitly.
2037 if ( strpos( $dbkey, '.' ) !== false &&
2038 ( $dbkey === '.' ||
$dbkey === '..' ||
2039 strpos( $dbkey, './' ) === 0 ||
2040 strpos( $dbkey, '../' ) === 0 ||
2041 strpos( $dbkey, '/./' ) !== false ||
2042 strpos( $dbkey, '/../' ) !== false ||
2043 substr( $dbkey, -2 ) == '/.' ||
2044 substr( $dbkey, -3 ) == '/..' ) )
2050 * Magic tilde sequences? Nu-uh!
2052 if( strpos( $dbkey, '~~~' ) !== false ) {
2057 * Limit the size of titles to 255 bytes.
2058 * This is typically the size of the underlying database field.
2059 * We make an exception for special pages, which don't need to be stored
2060 * in the database, and may edge over 255 bytes due to subpage syntax
2061 * for long titles, e.g. [[Special:Block/Long name]]
2063 if ( ( $this->mNamespace
!= NS_SPECIAL
&& strlen( $dbkey ) > 255 ) ||
2064 strlen( $dbkey ) > 512 )
2070 * Normally, all wiki links are forced to have
2071 * an initial capital letter so [[foo]] and [[Foo]]
2072 * point to the same place.
2074 * Don't force it for interwikis, since the other
2075 * site might be case-sensitive.
2077 $this->mUserCaseDBKey
= $dbkey;
2078 if( $wgCapitalLinks && $this->mInterwiki
== '') {
2079 $dbkey = $wgContLang->ucfirst( $dbkey );
2083 * Can't make a link to a namespace alone...
2084 * "empty" local links can only be self-links
2085 * with a fragment identifier.
2088 $this->mInterwiki
== '' &&
2089 $this->mNamespace
!= NS_MAIN
) {
2092 // Allow IPv6 usernames to start with '::' by canonicalizing IPv6 titles.
2093 // IP names are not allowed for accounts, and can only be referring to
2094 // edits from the IP. Given '::' abbreviations and caps/lowercaps,
2095 // there are numerous ways to present the same IP. Having sp:contribs scan
2096 // them all is silly and having some show the edits and others not is
2097 // inconsistent. Same for talk/userpages. Keep them normalized instead.
2098 $dbkey = ($this->mNamespace
== NS_USER ||
$this->mNamespace
== NS_USER_TALK
) ?
2099 IP
::sanitizeIP( $dbkey ) : $dbkey;
2100 // Any remaining initial :s are illegal.
2101 if ( $dbkey !== '' && ':' == $dbkey{0} ) {
2105 # Hooks can reject titles by returning false
2106 if(!wfRunHooks('TitleSecureAndSplit', array( $this, &$dbkey )))
2110 $this->mDbkeyform
= $dbkey;
2111 $this->mUrlform
= wfUrlencode( $dbkey );
2113 $this->mTextform
= str_replace( '_', ' ', $dbkey );
2119 * Set the fragment for this title
2120 * This is kind of bad, since except for this rarely-used function, Title objects
2121 * are immutable. The reason this is here is because it's better than setting the
2122 * members directly, which is what Linker::formatComment was doing previously.
2124 * @param string $fragment text
2125 * @todo clarify whether access is supposed to be public (was marked as "kind of public")
2127 public function setFragment( $fragment ) {
2128 $this->mFragment
= str_replace( '_', ' ', substr( $fragment, 1 ) );
2132 * Get a Title object associated with the talk page of this article
2133 * @return Title the object for the talk page
2135 public function getTalkPage() {
2136 return Title
::makeTitle( Namespace::getTalk( $this->getNamespace() ), $this->getDBkey() );
2140 * Get a title object associated with the subject page of this
2143 * @return Title the object for the subject page
2145 public function getSubjectPage() {
2146 return Title
::makeTitle( Namespace::getSubject( $this->getNamespace() ), $this->getDBkey() );
2150 * Get an array of Title objects linking to this Title
2151 * Also stores the IDs in the link cache.
2153 * WARNING: do not use this function on arbitrary user-supplied titles!
2154 * On heavily-used templates it will max out the memory.
2156 * @param string $options may be FOR UPDATE
2157 * @return array the Title objects linking here
2159 public function getLinksTo( $options = '', $table = 'pagelinks', $prefix = 'pl' ) {
2160 $linkCache =& LinkCache
::singleton();
2163 $db = wfGetDB( DB_MASTER
);
2165 $db = wfGetDB( DB_SLAVE
);
2168 $res = $db->select( array( 'page', $table ),
2169 array( 'page_namespace', 'page_title', 'page_id' ),
2171 "{$prefix}_from=page_id",
2172 "{$prefix}_namespace" => $this->getNamespace(),
2173 "{$prefix}_title" => $this->getDBkey() ),
2174 'Title::getLinksTo',
2178 if ( $db->numRows( $res ) ) {
2179 while ( $row = $db->fetchObject( $res ) ) {
2180 if ( $titleObj = Title
::makeTitle( $row->page_namespace
, $row->page_title
) ) {
2181 $linkCache->addGoodLinkObj( $row->page_id
, $titleObj );
2182 $retVal[] = $titleObj;
2186 $db->freeResult( $res );
2191 * Get an array of Title objects using this Title as a template
2192 * Also stores the IDs in the link cache.
2194 * WARNING: do not use this function on arbitrary user-supplied titles!
2195 * On heavily-used templates it will max out the memory.
2197 * @param string $options may be FOR UPDATE
2198 * @return array the Title objects linking here
2200 public function getTemplateLinksTo( $options = '' ) {
2201 return $this->getLinksTo( $options, 'templatelinks', 'tl' );
2205 * Get an array of Title objects referring to non-existent articles linked from this page
2207 * @todo check if needed (used only in SpecialBrokenRedirects.php, and should use redirect table in this case)
2208 * @param string $options may be FOR UPDATE
2209 * @return array the Title objects
2211 public function getBrokenLinksFrom( $options = '' ) {
2212 if ( $this->getArticleId() == 0 ) {
2213 # All links from article ID 0 are false positives
2218 $db = wfGetDB( DB_MASTER
);
2220 $db = wfGetDB( DB_SLAVE
);
2223 $res = $db->safeQuery(
2224 "SELECT pl_namespace, pl_title
2227 ON pl_namespace=page_namespace
2228 AND pl_title=page_title
2230 AND page_namespace IS NULL
2232 $db->tableName( 'pagelinks' ),
2233 $db->tableName( 'page' ),
2234 $this->getArticleId(),
2238 if ( $db->numRows( $res ) ) {
2239 while ( $row = $db->fetchObject( $res ) ) {
2240 $retVal[] = Title
::makeTitle( $row->pl_namespace
, $row->pl_title
);
2243 $db->freeResult( $res );
2249 * Get a list of URLs to purge from the Squid cache when this
2252 * @return array the URLs
2254 public function getSquidURLs() {
2258 $this->getInternalURL(),
2259 $this->getInternalURL( 'action=history' )
2262 // purge variant urls as well
2263 if($wgContLang->hasVariants()){
2264 $variants = $wgContLang->getVariants();
2265 foreach($variants as $vCode){
2266 if($vCode==$wgContLang->getCode()) continue; // we don't want default variant
2267 $urls[] = $this->getInternalURL('',$vCode);
2274 public function purgeSquid() {
2276 if ( $wgUseSquid ) {
2277 $urls = $this->getSquidURLs();
2278 $u = new SquidUpdate( $urls );
2284 * Move this page without authentication
2285 * @param Title &$nt the new page Title
2287 public function moveNoAuth( &$nt ) {
2288 return $this->moveTo( $nt, false );
2292 * Check whether a given move operation would be valid.
2293 * Returns true if ok, or a message key string for an error message
2294 * if invalid. (Scarrrrry ugly interface this.)
2295 * @param Title &$nt the new title
2296 * @param bool $auth indicates whether $wgUser's permissions
2298 * @return mixed true on success, message name on failure
2300 public function isValidMoveOperation( &$nt, $auth = true ) {
2301 if( !$this or !$nt ) {
2302 return 'badtitletext';
2304 if( $this->equals( $nt ) ) {
2307 if( !$this->isMovable() ||
!$nt->isMovable() ) {
2308 return 'immobile_namespace';
2311 $oldid = $this->getArticleID();
2312 $newid = $nt->getArticleID();
2314 if ( strlen( $nt->getDBkey() ) < 1 ) {
2315 return 'articleexists';
2317 if ( ( '' == $this->getDBkey() ) ||
2319 ( '' == $nt->getDBkey() ) ) {
2320 return 'badarticleerror';
2325 $errors = array_merge($this->getUserPermissionsErrors('move', $wgUser),
2326 $this->getUserPermissionsErrors('edit', $wgUser),
2327 $nt->getUserPermissionsErrors('move', $wgUser),
2328 $nt->getUserPermissionsErrors('edit', $wgUser));
2329 if($errors !== array())
2330 return $errors[0][0];
2335 if( !wfRunHooks( 'AbortMove', array( $this, $nt, $wgUser, &$err ) ) ) {
2336 return 'hookaborted';
2339 # The move is allowed only if (1) the target doesn't exist, or
2340 # (2) the target is a redirect to the source, and has no history
2341 # (so we can undo bad moves right after they're done).
2343 if ( 0 != $newid ) { # Target exists; check for validity
2344 if ( ! $this->isValidMoveTarget( $nt ) ) {
2345 return 'articleexists';
2348 $tp = $nt->getTitleProtection();
2349 if ( $tp and !$wgUser->isAllowed( $tp['pt_create_perm'] ) ) {
2350 return 'cantmove-titleprotected';
2357 * Move a title to a new location
2358 * @param Title &$nt the new title
2359 * @param bool $auth indicates whether $wgUser's permissions
2361 * @param string $reason The reason for the move
2362 * @param bool $createRedirect Whether to create a redirect from the old title to the new title.
2363 * Ignored if the user doesn't have the suppressredirect right.
2364 * @return mixed true on success, message name on failure
2366 public function moveTo( &$nt, $auth = true, $reason = '', $createRedirect = true ) {
2367 $err = $this->isValidMoveOperation( $nt, $auth );
2368 if( is_string( $err ) ) {
2372 $pageid = $this->getArticleID();
2373 if( $nt->exists() ) {
2374 $this->moveOverExistingRedirect( $nt, $reason, $createRedirect );
2375 $pageCountChange = ($createRedirect ?
0 : -1);
2376 } else { # Target didn't exist, do normal move.
2377 $this->moveToNewTitle( $nt, $reason, $createRedirect );
2378 $pageCountChange = ($createRedirect ?
1 : 0);
2380 $redirid = $this->getArticleID();
2382 // Category memberships include a sort key which may be customized.
2383 // If it's left as the default (the page title), we need to update
2384 // the sort key to match the new title.
2386 // Be careful to avoid resetting cl_timestamp, which may disturb
2387 // time-based lists on some sites.
2389 // Warning -- if the sort key is *explicitly* set to the old title,
2390 // we can't actually distinguish it from a default here, and it'll
2391 // be set to the new title even though it really shouldn't.
2392 // It'll get corrected on the next edit, but resetting cl_timestamp.
2393 $dbw = wfGetDB( DB_MASTER
);
2394 $dbw->update( 'categorylinks',
2396 'cl_sortkey' => $nt->getPrefixedText(),
2397 'cl_timestamp=cl_timestamp' ),
2399 'cl_from' => $pageid,
2400 'cl_sortkey' => $this->getPrefixedText() ),
2405 $oldnamespace = $this->getNamespace() & ~
1;
2406 $newnamespace = $nt->getNamespace() & ~
1;
2407 $oldtitle = $this->getDBkey();
2408 $newtitle = $nt->getDBkey();
2410 if( $oldnamespace != $newnamespace ||
$oldtitle != $newtitle ) {
2411 WatchedItem
::duplicateEntries( $this, $nt );
2414 # Update search engine
2415 $u = new SearchUpdate( $pageid, $nt->getPrefixedDBkey() );
2417 $u = new SearchUpdate( $redirid, $this->getPrefixedDBkey(), '' );
2421 if( $this->isContentPage() && !$nt->isContentPage() ) {
2422 # No longer a content page
2423 # Not viewed, edited, removing
2424 $u = new SiteStatsUpdate( 0, 1, -1, $pageCountChange );
2425 } elseif( !$this->isContentPage() && $nt->isContentPage() ) {
2426 # Now a content page
2427 # Not viewed, edited, adding
2428 $u = new SiteStatsUpdate( 0, 1, +
1, $pageCountChange );
2429 } elseif( $pageCountChange ) {
2431 $u = new SiteStatsUpdate( 0, 0, 0, 1 );
2438 # Update message cache for interface messages
2439 if( $nt->getNamespace() == NS_MEDIAWIKI
) {
2440 global $wgMessageCache;
2441 $oldarticle = new Article( $this );
2442 $wgMessageCache->replace( $this->getDBkey(), $oldarticle->getContent() );
2443 $newarticle = new Article( $nt );
2444 $wgMessageCache->replace( $nt->getDBkey(), $newarticle->getContent() );
2448 wfRunHooks( 'TitleMoveComplete', array( &$this, &$nt, &$wgUser, $pageid, $redirid ) );
2453 * Move page to a title which is at present a redirect to the
2456 * @param Title &$nt the page to move to, which should currently
2458 * @param string $reason The reason for the move
2459 * @param bool $createRedirect Whether to leave a redirect at the old title.
2460 * Ignored if the user doesn't have the suppressredirect right
2462 private function moveOverExistingRedirect( &$nt, $reason = '', $createRedirect = true ) {
2463 global $wgUseSquid, $wgUser;
2464 $fname = 'Title::moveOverExistingRedirect';
2465 $comment = wfMsgForContent( '1movedto2_redir', $this->getPrefixedText(), $nt->getPrefixedText() );
2468 $comment .= ": $reason";
2471 $now = wfTimestampNow();
2472 $newid = $nt->getArticleID();
2473 $oldid = $this->getArticleID();
2474 $dbw = wfGetDB( DB_MASTER
);
2476 # Delete the old redirect. We don't save it to history since
2477 # by definition if we've got here it's rather uninteresting.
2478 # We have to remove it so that the next step doesn't trigger
2479 # a conflict on the unique namespace+title index...
2480 $dbw->delete( 'page', array( 'page_id' => $newid ), $fname );
2481 if ( !$dbw->cascadingDeletes() ) {
2482 $dbw->delete( 'revision', array( 'rev_page' => $newid ), __METHOD__
);
2483 global $wgUseTrackbacks;
2484 if ($wgUseTrackbacks)
2485 $dbw->delete( 'trackbacks', array( 'tb_page' => $newid ), __METHOD__
);
2486 $dbw->delete( 'pagelinks', array( 'pl_from' => $newid ), __METHOD__
);
2487 $dbw->delete( 'imagelinks', array( 'il_from' => $newid ), __METHOD__
);
2488 $dbw->delete( 'categorylinks', array( 'cl_from' => $newid ), __METHOD__
);
2489 $dbw->delete( 'templatelinks', array( 'tl_from' => $newid ), __METHOD__
);
2490 $dbw->delete( 'externallinks', array( 'el_from' => $newid ), __METHOD__
);
2491 $dbw->delete( 'langlinks', array( 'll_from' => $newid ), __METHOD__
);
2492 $dbw->delete( 'redirect', array( 'rd_from' => $newid ), __METHOD__
);
2495 # Save a null revision in the page's history notifying of the move
2496 $nullRevision = Revision
::newNullRevision( $dbw, $oldid, $comment, true );
2497 $nullRevId = $nullRevision->insertOn( $dbw );
2499 # Change the name of the target page:
2500 $dbw->update( 'page',
2502 'page_touched' => $dbw->timestamp($now),
2503 'page_namespace' => $nt->getNamespace(),
2504 'page_title' => $nt->getDBkey(),
2505 'page_latest' => $nullRevId,
2507 /* WHERE */ array( 'page_id' => $oldid ),
2510 $nt->resetArticleID( $oldid );
2512 # Recreate the redirect, this time in the other direction.
2513 if($createRedirect ||
!$wgUser->isAllowed('suppressredirect'))
2515 $mwRedir = MagicWord
::get( 'redirect' );
2516 $redirectText = $mwRedir->getSynonym( 0 ) . ' [[' . $nt->getPrefixedText() . "]]\n";
2517 $redirectArticle = new Article( $this );
2518 $newid = $redirectArticle->insertOn( $dbw );
2519 $redirectRevision = new Revision( array(
2521 'comment' => $comment,
2522 'text' => $redirectText ) );
2523 $redirectRevision->insertOn( $dbw );
2524 $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
2526 # Now, we record the link from the redirect to the new title.
2527 # It should have no other outgoing links...
2528 $dbw->delete( 'pagelinks', array( 'pl_from' => $newid ), $fname );
2529 $dbw->insert( 'pagelinks',
2531 'pl_from' => $newid,
2532 'pl_namespace' => $nt->getNamespace(),
2533 'pl_title' => $nt->getDBkey() ),
2536 $this->resetArticleID( 0 );
2540 $log = new LogPage( 'move' );
2541 $log->addEntry( 'move_redir', $this, $reason, array( 1 => $nt->getPrefixedText() ) );
2544 if ( $wgUseSquid ) {
2545 $urls = array_merge( $nt->getSquidURLs(), $this->getSquidURLs() );
2546 $u = new SquidUpdate( $urls );
2552 * Move page to non-existing title.
2553 * @param Title &$nt the new Title
2554 * @param string $reason The reason for the move
2555 * @param bool $createRedirect Whether to create a redirect from the old title to the new title
2556 * Ignored if the user doesn't have the suppressredirect right
2558 private function moveToNewTitle( &$nt, $reason = '', $createRedirect = true ) {
2559 global $wgUseSquid, $wgUser;
2560 $fname = 'MovePageForm::moveToNewTitle';
2561 $comment = wfMsgForContent( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() );
2563 $comment .= ": $reason";
2566 $newid = $nt->getArticleID();
2567 $oldid = $this->getArticleID();
2568 $dbw = wfGetDB( DB_MASTER
);
2569 $now = $dbw->timestamp();
2571 # Save a null revision in the page's history notifying of the move
2572 $nullRevision = Revision
::newNullRevision( $dbw, $oldid, $comment, true );
2573 $nullRevId = $nullRevision->insertOn( $dbw );
2576 $dbw->update( 'page',
2578 'page_touched' => $now,
2579 'page_namespace' => $nt->getNamespace(),
2580 'page_title' => $nt->getDBkey(),
2581 'page_latest' => $nullRevId,
2583 /* WHERE */ array( 'page_id' => $oldid ),
2586 $nt->resetArticleID( $oldid );
2588 if($createRedirect ||
!$wgUser->isAllowed('suppressredirect'))
2591 $mwRedir = MagicWord
::get( 'redirect' );
2592 $redirectText = $mwRedir->getSynonym( 0 ) . ' [[' . $nt->getPrefixedText() . "]]\n";
2593 $redirectArticle = new Article( $this );
2594 $newid = $redirectArticle->insertOn( $dbw );
2595 $redirectRevision = new Revision( array(
2597 'comment' => $comment,
2598 'text' => $redirectText ) );
2599 $redirectRevision->insertOn( $dbw );
2600 $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
2602 # Record the just-created redirect's linking to the page
2603 $dbw->insert( 'pagelinks',
2605 'pl_from' => $newid,
2606 'pl_namespace' => $nt->getNamespace(),
2607 'pl_title' => $nt->getDBkey() ),
2610 $this->resetArticleID( 0 );
2614 $log = new LogPage( 'move' );
2615 $log->addEntry( 'move', $this, $reason, array( 1 => $nt->getPrefixedText()) );
2617 # Purge caches as per article creation
2618 Article
::onArticleCreate( $nt );
2620 # Purge old title from squid
2621 # The new title, and links to the new title, are purged in Article::onArticleCreate()
2622 $this->purgeSquid();
2626 * Checks if $this can be moved to a given Title
2627 * - Selects for update, so don't call it unless you mean business
2629 * @param Title &$nt the new title to check
2631 public function isValidMoveTarget( $nt ) {
2633 $fname = 'Title::isValidMoveTarget';
2634 $dbw = wfGetDB( DB_MASTER
);
2637 $id = $nt->getArticleID();
2638 $obj = $dbw->selectRow( array( 'page', 'revision', 'text'),
2639 array( 'page_is_redirect','old_text','old_flags' ),
2640 array( 'page_id' => $id, 'page_latest=rev_id', 'rev_text_id=old_id' ),
2641 $fname, 'FOR UPDATE' );
2643 if ( !$obj ||
0 == $obj->page_is_redirect
) {
2645 wfDebug( __METHOD__
. ": not a redirect\n" );
2648 $text = Revision
::getRevisionText( $obj );
2650 # Does the redirect point to the source?
2651 # Or is it a broken self-redirect, usually caused by namespace collisions?
2653 if ( preg_match( "/\\[\\[\\s*([^\\]\\|]*)]]/", $text, $m ) ) {
2654 $redirTitle = Title
::newFromText( $m[1] );
2655 if( !is_object( $redirTitle ) ||
2656 ( $redirTitle->getPrefixedDBkey() != $this->getPrefixedDBkey() &&
2657 $redirTitle->getPrefixedDBkey() != $nt->getPrefixedDBkey() ) ) {
2658 wfDebug( __METHOD__
. ": redirect points to other page\n" );
2663 wfDebug( __METHOD__
. ": failsafe\n" );
2667 # Does the article have a history?
2668 $row = $dbw->selectRow( array( 'page', 'revision'),
2670 array( 'page_namespace' => $nt->getNamespace(),
2671 'page_title' => $nt->getDBkey(),
2672 'page_id=rev_page AND page_latest != rev_id'
2673 ), $fname, 'FOR UPDATE'
2676 # Return true if there was no history
2677 return $row === false;
2681 * Can this title be added to a user's watchlist?
2685 public function isWatchable() {
2686 return !$this->isExternal()
2687 && Namespace::isWatchable( $this->getNamespace() );
2691 * Get categories to which this Title belongs and return an array of
2692 * categories' names.
2694 * @return array an array of parents in the form:
2695 * $parent => $currentarticle
2697 public function getParentCategories() {
2700 $titlekey = $this->getArticleId();
2701 $dbr = wfGetDB( DB_SLAVE
);
2702 $categorylinks = $dbr->tableName( 'categorylinks' );
2705 $sql = "SELECT * FROM $categorylinks"
2706 ." WHERE cl_from='$titlekey'"
2707 ." AND cl_from <> '0'"
2708 ." ORDER BY cl_sortkey";
2710 $res = $dbr->query ( $sql ) ;
2712 if($dbr->numRows($res) > 0) {
2713 while ( $x = $dbr->fetchObject ( $res ) )
2714 //$data[] = Title::newFromText($wgContLang->getNSText ( NS_CATEGORY ).':'.$x->cl_to);
2715 $data[$wgContLang->getNSText ( NS_CATEGORY
).':'.$x->cl_to
] = $this->getFullText();
2716 $dbr->freeResult ( $res ) ;
2724 * Get a tree of parent categories
2725 * @param array $children an array with the children in the keys, to check for circular refs
2728 public function getParentCategoryTree( $children = array() ) {
2730 $parents = $this->getParentCategories();
2732 if($parents != '') {
2733 foreach($parents as $parent => $current) {
2734 if ( array_key_exists( $parent, $children ) ) {
2735 # Circular reference
2736 $stack[$parent] = array();
2738 $nt = Title
::newFromText($parent);
2740 $stack[$parent] = $nt->getParentCategoryTree( $children +
array($parent => 1) );
2752 * Get an associative array for selecting this title from
2757 public function pageCond() {
2758 return array( 'page_namespace' => $this->mNamespace
, 'page_title' => $this->mDbkeyform
);
2762 * Get the revision ID of the previous revision
2764 * @param integer $revision Revision ID. Get the revision that was before this one.
2765 * @return integer $oldrevision|false
2767 public function getPreviousRevisionID( $revision ) {
2768 $dbr = wfGetDB( DB_SLAVE
);
2769 return $dbr->selectField( 'revision', 'rev_id',
2770 'rev_page=' . intval( $this->getArticleId() ) .
2771 ' AND rev_id<' . intval( $revision ) . ' ORDER BY rev_id DESC' );
2775 * Get the revision ID of the next revision
2777 * @param integer $revision Revision ID. Get the revision that was after this one.
2778 * @return integer $oldrevision|false
2780 public function getNextRevisionID( $revision ) {
2781 $dbr = wfGetDB( DB_SLAVE
);
2782 return $dbr->selectField( 'revision', 'rev_id',
2783 'rev_page=' . intval( $this->getArticleId() ) .
2784 ' AND rev_id>' . intval( $revision ) . ' ORDER BY rev_id' );
2788 * Get the number of revisions between the given revision IDs.
2790 * @param integer $old Revision ID.
2791 * @param integer $new Revision ID.
2792 * @return integer Number of revisions between these IDs.
2794 public function countRevisionsBetween( $old, $new ) {
2795 $dbr = wfGetDB( DB_SLAVE
);
2796 return $dbr->selectField( 'revision', 'count(*)',
2797 'rev_page = ' . intval( $this->getArticleId() ) .
2798 ' AND rev_id > ' . intval( $old ) .
2799 ' AND rev_id < ' . intval( $new ) );
2803 * Compare with another title.
2805 * @param Title $title
2808 public function equals( $title ) {
2809 // Note: === is necessary for proper matching of number-like titles.
2810 return $this->getInterwiki() === $title->getInterwiki()
2811 && $this->getNamespace() == $title->getNamespace()
2812 && $this->getDBkey() === $title->getDBkey();
2816 * Return a string representation of this title
2820 public function __toString() {
2821 return $this->getPrefixedText();
2825 * Check if page exists
2828 public function exists() {
2829 return $this->getArticleId() != 0;
2833 * Do we know that this title definitely exists, or should we otherwise
2834 * consider that it exists?
2838 public function isAlwaysKnown() {
2839 // If the page is form Mediawiki:message/lang, calling wfMsgWeirdKey causes
2840 // the full l10n of that language to be loaded. That takes much memory and
2841 // isn't needed. So we strip the language part away.
2842 // Also, extension messages which are not loaded, are shown as red, because
2843 // we don't call MessageCache::loadAllMessages.
2844 list( $basename, /* rest */ ) = explode( '/', $this->mDbkeyform
, 2 );
2845 return $this->isExternal()
2846 ||
( $this->mNamespace
== NS_MAIN
&& $this->mDbkeyform
== '' )
2847 ||
( $this->mNamespace
== NS_MEDIAWIKI
&& wfMsgWeirdKey( $basename ) );
2851 * Update page_touched timestamps and send squid purge messages for
2852 * pages linking to this title. May be sent to the job queue depending
2853 * on the number of links. Typically called on create and delete.
2855 public function touchLinks() {
2856 $u = new HTMLCacheUpdate( $this, 'pagelinks' );
2859 if ( $this->getNamespace() == NS_CATEGORY
) {
2860 $u = new HTMLCacheUpdate( $this, 'categorylinks' );
2866 * Get the last touched timestamp
2868 public function getTouched() {
2869 $dbr = wfGetDB( DB_SLAVE
);
2870 $touched = $dbr->selectField( 'page', 'page_touched',
2872 'page_namespace' => $this->getNamespace(),
2873 'page_title' => $this->getDBkey()
2879 public function trackbackURL() {
2880 global $wgTitle, $wgScriptPath, $wgServer;
2882 return "$wgServer$wgScriptPath/trackback.php?article="
2883 . htmlspecialchars(urlencode($wgTitle->getPrefixedDBkey()));
2886 public function trackbackRDF() {
2887 $url = htmlspecialchars($this->getFullURL());
2888 $title = htmlspecialchars($this->getText());
2889 $tburl = $this->trackbackURL();
2892 <rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"
2893 xmlns:dc=\"http://purl.org/dc/elements/1.1/\"
2894 xmlns:trackback=\"http://madskills.com/public/xml/rss/module/trackback/\">
2897 dc:identifier=\"$url\"
2899 trackback:ping=\"$tburl\" />
2904 * Generate strings used for xml 'id' names in monobook tabs
2907 public function getNamespaceKey() {
2909 switch ($this->getNamespace()) {
2912 return 'nstab-main';
2915 return 'nstab-user';
2917 return 'nstab-media';
2919 return 'nstab-special';
2921 case NS_PROJECT_TALK
:
2922 return 'nstab-project';
2925 return 'nstab-image';
2927 case NS_MEDIAWIKI_TALK
:
2928 return 'nstab-mediawiki';
2930 case NS_TEMPLATE_TALK
:
2931 return 'nstab-template';
2934 return 'nstab-help';
2936 case NS_CATEGORY_TALK
:
2937 return 'nstab-category';
2939 return 'nstab-' . $wgContLang->lc( $this->getSubjectNsText() );
2944 * Returns true if this title resolves to the named special page
2945 * @param string $name The special page name
2947 public function isSpecial( $name ) {
2948 if ( $this->getNamespace() == NS_SPECIAL
) {
2949 list( $thisName, /* $subpage */ ) = SpecialPage
::resolveAliasWithSubpage( $this->getDBkey() );
2950 if ( $name == $thisName ) {
2958 * If the Title refers to a special page alias which is not the local default,
2959 * returns a new Title which points to the local default. Otherwise, returns $this.
2961 public function fixSpecialName() {
2962 if ( $this->getNamespace() == NS_SPECIAL
) {
2963 $canonicalName = SpecialPage
::resolveAlias( $this->mDbkeyform
);
2964 if ( $canonicalName ) {
2965 $localName = SpecialPage
::getLocalNameFor( $canonicalName );
2966 if ( $localName != $this->mDbkeyform
) {
2967 return Title
::makeTitle( NS_SPECIAL
, $localName );
2975 * Is this Title in a namespace which contains content?
2976 * In other words, is this a content page, for the purposes of calculating
2981 public function isContentPage() {
2982 return Namespace::isContent( $this->getNamespace() );