7 if ( !class_exists( 'UtfNormal' ) ) {
8 require_once( dirname(__FILE__
) . '/normal/UtfNormal.php' );
11 define ( 'GAID_FOR_UPDATE', 1 );
15 * Constants for pr_cascade bitfield
17 define( 'CASCADE', 1 );
20 * Represents a title within MediaWiki.
21 * Optionally may contain an interwiki designation or namespace.
22 * @note This class can fetch various kinds of data from the database;
23 * however, it does so inefficiently.
26 /** @name Static cache variables */
28 static private $titleCache=array();
29 static private $interwikiCache=array();
33 * Title::newFromText maintains a cache to avoid expensive re-normalization of
34 * commonly used titles. On a batch operation this can become a memory leak
35 * if not bounded. After hitting this many titles reset the cache.
37 const CACHE_MAX
= 1000;
41 * @name Private member variables
42 * Please use the accessor functions instead.
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 = NS_MAIN
; ///< 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 = -1; ///< Article ID, fetched from the link cache on demand
55 var $mLatestID = false; ///< ID of most recent revision
56 var $mRestrictions = array(); ///< Array of groups allowed to edit this article
57 var $mOldRestrictions = false;
58 var $mCascadeRestriction; ///< Cascade restrictions on this page to included templates and images?
59 var $mRestrictionsExpiry = array(); ///< When do the restrictions on this page expire?
60 var $mHasCascadingRestrictions; ///< Are cascading restrictions in effect on this page?
61 var $mCascadeSources; ///< Where are the cascading restrictions coming from on this page?
62 var $mRestrictionsLoaded = false; ///< Boolean for initialisation on demand
63 var $mPrefixedText; ///< Text form including namespace/interwiki, initialised on demand
64 # Don't change the following default, NS_MAIN is hardcoded in several
65 # places. See bug 696.
66 var $mDefaultNamespace = NS_MAIN
; ///< Namespace index when there is no namespace
67 # Zero except in {{transclusion}} tags
68 var $mWatched = null; ///< Is $wgUser watching this page? null if unfilled, accessed through userIsWatching()
69 var $mLength = -1; ///< The page length, 0 for special pages
70 var $mRedirect = null; ///< Is the article at this title a redirect?
71 var $mNotificationTimestamp = array(); ///< Associative array of user ID -> timestamp/false
79 /* private */ function __construct() {}
82 * Create a new Title from a prefixed DB key
83 * @param $key \type{\string} The database key, which has underscores
84 * instead of spaces, possibly including namespace and
86 * @return \type{Title} the new object, or NULL on an error
88 public static function newFromDBkey( $key ) {
90 $t->mDbkeyform
= $key;
91 if( $t->secureAndSplit() )
98 * Create a new Title from text, such as what one would find in a link. De-
99 * codes any HTML entities in the text.
101 * @param $text string The link text; spaces, prefixes, and an
102 * initial ':' indicating the main namespace are accepted.
103 * @param $defaultNamespace int The namespace to use if none is speci-
104 * fied by a prefix. If you want to force a specific namespace even if
105 * $text might begin with a namespace prefix, use makeTitle() or
107 * @return Title The new object, or null on an error.
109 public static function newFromText( $text, $defaultNamespace = NS_MAIN
) {
110 if( is_object( $text ) ) {
111 throw new MWException( 'Title::newFromText given an object' );
115 * Wiki pages often contain multiple links to the same page.
116 * Title normalization and parsing can become expensive on
117 * pages with many links, so we can save a little time by
120 * In theory these are value objects and won't get changed...
122 if( $defaultNamespace == NS_MAIN
&& isset( Title
::$titleCache[$text] ) ) {
123 return Title
::$titleCache[$text];
127 * Convert things like é ā or 〗 into real text...
129 $filteredText = Sanitizer
::decodeCharReferences( $text );
132 $t->mDbkeyform
= str_replace( ' ', '_', $filteredText );
133 $t->mDefaultNamespace
= $defaultNamespace;
135 static $cachedcount = 0 ;
136 if( $t->secureAndSplit() ) {
137 if( $defaultNamespace == NS_MAIN
) {
138 if( $cachedcount >= self
::CACHE_MAX
) {
139 # Avoid memory leaks on mass operations...
140 Title
::$titleCache = array();
144 Title
::$titleCache[$text] =& $t;
154 * Create a new Title from URL-encoded text. Ensures that
155 * the given title's length does not exceed the maximum.
156 * @param $url \type{\string} the title, as might be taken from a URL
157 * @return \type{Title} the new object, or NULL on an error
159 public static function newFromURL( $url ) {
160 global $wgLegalTitleChars;
163 # For compatibility with old buggy URLs. "+" is usually not valid in titles,
164 # but some URLs used it as a space replacement and they still come
165 # from some external search tools.
166 if ( strpos( $wgLegalTitleChars, '+' ) === false ) {
167 $url = str_replace( '+', ' ', $url );
170 $t->mDbkeyform
= str_replace( ' ', '_', $url );
171 if( $t->secureAndSplit() ) {
179 * Create a new Title from an article ID
181 * @todo This is inefficiently implemented, the page row is requested
182 * but not used for anything else
184 * @param $id \type{\int} the page_id corresponding to the Title to create
185 * @param $flags \type{\int} use GAID_FOR_UPDATE to use master
186 * @return \type{Title} the new object, or NULL on an error
188 public static function newFromID( $id, $flags = 0 ) {
189 $fname = 'Title::newFromID';
190 $db = ($flags & GAID_FOR_UPDATE
) ?
wfGetDB( DB_MASTER
) : wfGetDB( DB_SLAVE
);
191 $row = $db->selectRow( 'page', array( 'page_namespace', 'page_title' ),
192 array( 'page_id' => $id ), $fname );
193 if ( $row !== false ) {
194 $title = Title
::makeTitle( $row->page_namespace
, $row->page_title
);
202 * Make an array of titles from an array of IDs
203 * @param $ids \type{\arrayof{\int}} Array of IDs
204 * @return \type{\arrayof{Title}} Array of Titles
206 public static function newFromIDs( $ids ) {
207 if ( !count( $ids ) ) {
210 $dbr = wfGetDB( DB_SLAVE
);
211 $res = $dbr->select( 'page', array( 'page_namespace', 'page_title' ),
212 'page_id IN (' . $dbr->makeList( $ids ) . ')', __METHOD__
);
215 foreach( $res as $row ) {
216 $titles[] = Title
::makeTitle( $row->page_namespace
, $row->page_title
);
222 * Make a Title object from a DB row
223 * @param $row \type{Row} (needs at least page_title,page_namespace)
224 * @return \type{Title} corresponding Title
226 public static function newFromRow( $row ) {
227 $t = self
::makeTitle( $row->page_namespace
, $row->page_title
);
229 $t->mArticleID
= isset($row->page_id
) ?
intval($row->page_id
) : -1;
230 $t->mLength
= isset($row->page_len
) ?
intval($row->page_len
) : -1;
231 $t->mRedirect
= isset($row->page_is_redirect
) ?
(bool)$row->page_is_redirect
: NULL;
232 $t->mLatestID
= isset($row->page_latest
) ?
$row->page_latest
: false;
238 * Create a new Title from a namespace index and a DB key.
239 * It's assumed that $ns and $title are *valid*, for instance when
240 * they came directly from the database or a special page name.
241 * For convenience, spaces are converted to underscores so that
242 * eg user_text fields can be used directly.
244 * @param $ns \type{\int} the namespace of the article
245 * @param $title \type{\string} the unprefixed database key form
246 * @param $fragment \type{\string} The link fragment (after the "#")
247 * @return \type{Title} the new object
249 public static function &makeTitle( $ns, $title, $fragment = '' ) {
252 $t->mFragment
= $fragment;
253 $t->mNamespace
= $ns = intval( $ns );
254 $t->mDbkeyform
= str_replace( ' ', '_', $title );
255 $t->mArticleID
= ( $ns >= 0 ) ?
-1 : 0;
256 $t->mUrlform
= wfUrlencode( $t->mDbkeyform
);
257 $t->mTextform
= str_replace( '_', ' ', $title );
262 * Create a new Title from a namespace index and a DB key.
263 * The parameters will be checked for validity, which is a bit slower
264 * than makeTitle() but safer for user-provided data.
266 * @param $ns \type{\int} the namespace of the article
267 * @param $title \type{\string} the database key form
268 * @param $fragment \type{\string} The link fragment (after the "#")
269 * @return \type{Title} the new object, or NULL on an error
271 public static function makeTitleSafe( $ns, $title, $fragment = '' ) {
273 $t->mDbkeyform
= Title
::makeName( $ns, $title, $fragment );
274 if( $t->secureAndSplit() ) {
282 * Create a new Title for the Main Page
283 * @return \type{Title} the new object
285 public static function newMainPage() {
286 $title = Title
::newFromText( wfMsgForContent( 'mainpage' ) );
287 // Don't give fatal errors if the message is broken
289 $title = Title
::newFromText( 'Main Page' );
295 * Extract a redirect destination from a string and return the
296 * Title, or null if the text doesn't contain a valid redirect
298 * @param $text \type{String} Text with possible redirect
299 * @return \type{Title} The corresponding Title
301 public static function newFromRedirect( $text ) {
302 $redir = MagicWord
::get( 'redirect' );
304 if( $redir->matchStartAndRemove( $text ) ) {
305 // Extract the first link and see if it's usable
306 // Ensure that it really does come directly after #REDIRECT
307 // Some older redirects included a colon, so don't freak about that!
309 if( preg_match( '!^\s*:?\s*\[{2}(.*?)(?:\|.*?)?\]{2}!', $text, $m ) ) {
310 // Strip preceding colon used to "escape" categories, etc.
311 // and URL-decode links
312 if( strpos( $m[1], '%' ) !== false ) {
313 // Match behavior of inline link parsing here;
314 // don't interpret + as " " most of the time!
315 // It might be safe to just use rawurldecode instead, though.
316 $m[1] = urldecode( ltrim( $m[1], ':' ) );
318 $title = Title
::newFromText( $m[1] );
319 // Redirects to some special pages are not permitted
320 if( $title instanceof Title
321 && !$title->isSpecial( 'Userlogout' )
322 && !$title->isSpecial( 'Filepath' ) )
331 #----------------------------------------------------------------------------
333 #----------------------------------------------------------------------------
336 * Get the prefixed DB key associated with an ID
337 * @param $id \type{\int} the page_id of the article
338 * @return \type{Title} an object representing the article, or NULL
339 * if no such article was found
341 public static function nameOf( $id ) {
342 $dbr = wfGetDB( DB_SLAVE
);
344 $s = $dbr->selectRow( 'page',
345 array( 'page_namespace','page_title' ),
346 array( 'page_id' => $id ),
348 if ( $s === false ) { return NULL; }
350 $n = self
::makeName( $s->page_namespace
, $s->page_title
);
355 * Get a regex character class describing the legal characters in a link
356 * @return \type{\string} the list of characters, not delimited
358 public static function legalChars() {
359 global $wgLegalTitleChars;
360 return $wgLegalTitleChars;
364 * Get a string representation of a title suitable for
365 * including in a search index
367 * @param $ns \type{\int} a namespace index
368 * @param $title \type{\string} text-form main part
369 * @return \type{\string} a stripped-down title string ready for the
372 public static function indexTitle( $ns, $title ) {
375 $lc = SearchEngine
::legalSearchChars() . '&#;';
376 $t = $wgContLang->stripForSearch( $title );
377 $t = preg_replace( "/[^{$lc}]+/", ' ', $t );
378 $t = $wgContLang->lc( $t );
381 $t = preg_replace( "/([{$lc}]+)'s( |$)/", "\\1 \\1's ", $t );
382 $t = preg_replace( "/([{$lc}]+)s'( |$)/", "\\1s ", $t );
384 $t = preg_replace( "/\\s+/", ' ', $t );
386 if ( $ns == NS_FILE
) {
387 $t = preg_replace( "/ (png|gif|jpg|jpeg|ogg)$/", "", $t );
393 * Make a prefixed DB key from a DB key and a namespace index
394 * @param $ns \type{\int} numerical representation of the namespace
395 * @param $title \type{\string} the DB key form the title
396 * @param $fragment \type{\string} The link fragment (after the "#")
397 * @return \type{\string} the prefixed form of the title
399 public static function makeName( $ns, $title, $fragment = '' ) {
402 $namespace = $wgContLang->getNsText( $ns );
403 $name = $namespace == '' ?
$title : "$namespace:$title";
404 if ( strval( $fragment ) != '' ) {
405 $name .= '#' . $fragment;
411 * Returns the URL associated with an interwiki prefix
412 * @param $key \type{\string} the interwiki prefix (e.g. "MeatBall")
413 * @return \type{\string} the associated URL, containing "$1",
414 * which should be replaced by an article title
416 * @deprecated See Interwiki class
418 public function getInterwikiLink( $key ) {
419 return Interwiki
::fetch( $key )->getURL( );
423 * Determine whether the object refers to a page within
426 * @return \type{\bool} TRUE if this is an in-project interwiki link
427 * or a wikilink, FALSE otherwise
429 public function isLocal() {
430 if ( $this->mInterwiki
!= '' ) {
431 return Interwiki
::fetch( $this->mInterwiki
)->isLocal();
438 * Determine whether the object refers to a page within
439 * this project and is transcludable.
441 * @return \type{\bool} TRUE if this is transcludable
443 public function isTrans() {
444 if ($this->mInterwiki
== '')
447 return Interwiki
::fetch( $this->mInterwiki
)->isTranscludable();
451 * Escape a text fragment, say from a link, for a URL
453 static function escapeFragmentForURL( $fragment ) {
454 return Sanitizer
::escapeId( $fragment, Sanitizer
::NONE
);
457 #----------------------------------------------------------------------------
459 #----------------------------------------------------------------------------
461 /** Simple accessors */
463 * Get the text form (spaces not underscores) of the main part
464 * @return \type{\string} Main part of the title
466 public function getText() { return $this->mTextform
; }
468 * Get the URL-encoded form of the main part
469 * @return \type{\string} Main part of the title, URL-encoded
471 public function getPartialURL() { return $this->mUrlform
; }
473 * Get the main part with underscores
474 * @return \type{\string} Main part of the title, with underscores
476 public function getDBkey() { return $this->mDbkeyform
; }
478 * Get the namespace index, i.e.\ one of the NS_xxxx constants.
479 * @return \type{\int} Namespace index
481 public function getNamespace() { return $this->mNamespace
; }
483 * Get the namespace text
484 * @return \type{\string} Namespace text
486 public function getNsText() {
487 global $wgContLang, $wgCanonicalNamespaceNames;
489 if ( '' != $this->mInterwiki
) {
490 // This probably shouldn't even happen. ohh man, oh yuck.
491 // But for interwiki transclusion it sometimes does.
492 // Shit. Shit shit shit.
494 // Use the canonical namespaces if possible to try to
495 // resolve a foreign namespace.
496 if( isset( $wgCanonicalNamespaceNames[$this->mNamespace
] ) ) {
497 return $wgCanonicalNamespaceNames[$this->mNamespace
];
500 return $wgContLang->getNsText( $this->mNamespace
);
503 * Get the DB key with the initial letter case as specified by the user
504 * @return \type{\string} DB key
506 function getUserCaseDBKey() {
507 return $this->mUserCaseDBKey
;
510 * Get the namespace text of the subject (rather than talk) page
511 * @return \type{\string} Namespace text
513 public function getSubjectNsText() {
515 return $wgContLang->getNsText( MWNamespace
::getSubject( $this->mNamespace
) );
518 * Get the namespace text of the talk page
519 * @return \type{\string} Namespace text
521 public function getTalkNsText() {
523 return( $wgContLang->getNsText( MWNamespace
::getTalk( $this->mNamespace
) ) );
526 * Could this title have a corresponding talk page?
527 * @return \type{\bool} TRUE or FALSE
529 public function canTalk() {
530 return( MWNamespace
::canTalk( $this->mNamespace
) );
533 * Get the interwiki prefix (or null string)
534 * @return \type{\string} Interwiki prefix
536 public function getInterwiki() { return $this->mInterwiki
; }
538 * Get the Title fragment (i.e.\ the bit after the #) in text form
539 * @return \type{\string} Title fragment
541 public function getFragment() { return $this->mFragment
; }
543 * Get the fragment in URL form, including the "#" character if there is one
544 * @return \type{\string} Fragment in URL form
546 public function getFragmentForURL() {
547 if ( $this->mFragment
== '' ) {
550 return '#' . Title
::escapeFragmentForURL( $this->mFragment
);
554 * Get the default namespace index, for when there is no namespace
555 * @return \type{\int} Default namespace index
557 public function getDefaultNamespace() { return $this->mDefaultNamespace
; }
560 * Get title for search index
561 * @return \type{\string} a stripped-down title string ready for the
564 public function getIndexTitle() {
565 return Title
::indexTitle( $this->mNamespace
, $this->mTextform
);
569 * Get the prefixed database key form
570 * @return \type{\string} the prefixed title, with underscores and
571 * any interwiki and namespace prefixes
573 public function getPrefixedDBkey() {
574 $s = $this->prefix( $this->mDbkeyform
);
575 $s = str_replace( ' ', '_', $s );
580 * Get the prefixed title with spaces.
581 * This is the form usually used for display
582 * @return \type{\string} the prefixed title, with spaces
584 public function getPrefixedText() {
585 if ( empty( $this->mPrefixedText
) ) { // FIXME: bad usage of empty() ?
586 $s = $this->prefix( $this->mTextform
);
587 $s = str_replace( '_', ' ', $s );
588 $this->mPrefixedText
= $s;
590 return $this->mPrefixedText
;
594 * Get the prefixed title with spaces, plus any fragment
595 * (part beginning with '#')
596 * @return \type{\string} the prefixed title, with spaces and
597 * the fragment, including '#'
599 public function getFullText() {
600 $text = $this->getPrefixedText();
601 if( '' != $this->mFragment
) {
602 $text .= '#' . $this->mFragment
;
608 * Get the base name, i.e. the leftmost parts before the /
609 * @return \type{\string} Base name
611 public function getBaseText() {
612 if( !MWNamespace
::hasSubpages( $this->mNamespace
) ) {
613 return $this->getText();
616 $parts = explode( '/', $this->getText() );
617 # Don't discard the real title if there's no subpage involved
618 if( count( $parts ) > 1 )
619 unset( $parts[ count( $parts ) - 1 ] );
620 return implode( '/', $parts );
624 * Get the lowest-level subpage name, i.e. the rightmost part after /
625 * @return \type{\string} Subpage name
627 public function getSubpageText() {
628 if( !MWNamespace
::hasSubpages( $this->mNamespace
) ) {
629 return( $this->mTextform
);
631 $parts = explode( '/', $this->mTextform
);
632 return( $parts[ count( $parts ) - 1 ] );
636 * Get a URL-encoded form of the subpage text
637 * @return \type{\string} URL-encoded subpage name
639 public function getSubpageUrlForm() {
640 $text = $this->getSubpageText();
641 $text = wfUrlencode( str_replace( ' ', '_', $text ) );
646 * Get a URL-encoded title (not an actual URL) including interwiki
647 * @return \type{\string} the URL-encoded form
649 public function getPrefixedURL() {
650 $s = $this->prefix( $this->mDbkeyform
);
651 $s = wfUrlencode( str_replace( ' ', '_', $s ) );
656 * Get a real URL referring to this title, with interwiki link and
659 * @param $query \twotypes{\string,\array} an optional query string, not used for interwiki
660 * links. Can be specified as an associative array as well, e.g.,
661 * array( 'action' => 'edit' ) (keys and values will be URL-escaped).
662 * @param $variant \type{\string} language variant of url (for sr, zh..)
663 * @return \type{\string} the URL
665 public function getFullURL( $query = '', $variant = false ) {
666 global $wgContLang, $wgServer, $wgRequest;
668 if( is_array( $query ) ) {
669 $query = wfArrayToCGI( $query );
672 $interwiki = Interwiki
::fetch( $this->mInterwiki
);
674 $url = $this->getLocalUrl( $query, $variant );
676 // Ugly quick hack to avoid duplicate prefixes (bug 4571 etc)
677 // Correct fix would be to move the prepending elsewhere.
678 if ($wgRequest->getVal('action') != 'render') {
679 $url = $wgServer . $url;
682 $baseUrl = $interwiki->getURL( );
684 $namespace = wfUrlencode( $this->getNsText() );
685 if ( '' != $namespace ) {
686 # Can this actually happen? Interwikis shouldn't be parsed.
687 # Yes! It can in interwiki transclusion. But... it probably shouldn't.
690 $url = str_replace( '$1', $namespace . $this->mUrlform
, $baseUrl );
691 $url = wfAppendQuery( $url, $query );
694 # Finally, add the fragment.
695 $url .= $this->getFragmentForURL();
697 wfRunHooks( 'GetFullURL', array( &$this, &$url, $query ) );
702 * Get a URL with no fragment or server name. If this page is generated
703 * with action=render, $wgServer is prepended.
704 * @param mixed $query an optional query string; if not specified,
705 * $wgArticlePath will be used. Can be specified as an associative array
706 * as well, e.g., array( 'action' => 'edit' ) (keys and values will be
708 * @param $variant \type{\string} language variant of url (for sr, zh..)
709 * @return \type{\string} the URL
711 public function getLocalURL( $query = '', $variant = false ) {
712 global $wgArticlePath, $wgScript, $wgServer, $wgRequest;
713 global $wgVariantArticlePath, $wgContLang, $wgUser;
715 if( is_array( $query ) ) {
716 $query = wfArrayToCGI( $query );
719 // internal links should point to same variant as current page (only anonymous users)
720 if($variant == false && $wgContLang->hasVariants() && !$wgUser->isLoggedIn()){
721 $pref = $wgContLang->getPreferredVariant(false);
722 if($pref != $wgContLang->getCode())
726 if ( $this->isExternal() ) {
727 $url = $this->getFullURL();
729 // This is currently only used for edit section links in the
730 // context of interwiki transclusion. In theory we should
731 // append the query to the end of any existing query string,
732 // but interwiki transclusion is already broken in that case.
736 $dbkey = wfUrlencode( $this->getPrefixedDBkey() );
737 if ( $query == '' ) {
738 if( $variant != false && $wgContLang->hasVariants() ) {
739 if( $wgVariantArticlePath == false ) {
740 $variantArticlePath = "$wgScript?title=$1&variant=$2"; // default
742 $variantArticlePath = $wgVariantArticlePath;
744 $url = str_replace( '$2', urlencode( $variant ), $variantArticlePath );
745 $url = str_replace( '$1', $dbkey, $url );
747 $url = str_replace( '$1', $dbkey, $wgArticlePath );
750 global $wgActionPaths;
753 if( !empty( $wgActionPaths ) &&
754 preg_match( '/^(.*&|)action=([^&]*)(&(.*)|)$/', $query, $matches ) )
756 $action = urldecode( $matches[2] );
757 if( isset( $wgActionPaths[$action] ) ) {
758 $query = $matches[1];
759 if( isset( $matches[4] ) ) $query .= $matches[4];
760 $url = str_replace( '$1', $dbkey, $wgActionPaths[$action] );
761 if( $query != '' ) $url .= '?' . $query;
764 if ( $url === false ) {
765 if ( $query == '-' ) {
768 $url = "{$wgScript}?title={$dbkey}&{$query}";
772 // FIXME: this causes breakage in various places when we
773 // actually expected a local URL and end up with dupe prefixes.
774 if ($wgRequest->getVal('action') == 'render') {
775 $url = $wgServer . $url;
778 wfRunHooks( 'GetLocalURL', array( &$this, &$url, $query ) );
783 * Get a URL that's the simplest URL that will be valid to link, locally,
784 * to the current Title. It includes the fragment, but does not include
785 * the server unless action=render is used (or the link is external). If
786 * there's a fragment but the prefixed text is empty, we just return a link
789 * @param $query \type{\arrayof{\string}} An associative array of key => value pairs for the
790 * query string. Keys and values will be escaped.
791 * @param $variant \type{\string} Language variant of URL (for sr, zh..). Ignored
792 * for external links. Default is "false" (same variant as current page,
793 * for anonymous users).
794 * @return \type{\string} the URL
796 public function getLinkUrl( $query = array(), $variant = false ) {
797 if( !is_array( $query ) ) {
798 throw new MWException( 'Title::getLinkUrl passed a non-array for '.
801 if( $this->isExternal() ) {
802 return $this->getFullURL( $query );
803 } elseif( $this->getPrefixedText() === ''
804 and $this->getFragment() !== '' ) {
805 return $this->getFragmentForURL();
807 return $this->getLocalURL( $query, $variant )
808 . $this->getFragmentForURL();
813 * Get an HTML-escaped version of the URL form, suitable for
814 * using in a link, without a server name or fragment
815 * @param $query \type{\string} an optional query string
816 * @return \type{\string} the URL
818 public function escapeLocalURL( $query = '' ) {
819 return htmlspecialchars( $this->getLocalURL( $query ) );
823 * Get an HTML-escaped version of the URL form, suitable for
824 * using in a link, including the server name and fragment
826 * @param $query \type{\string} an optional query string
827 * @return \type{\string} the URL
829 public function escapeFullURL( $query = '' ) {
830 return htmlspecialchars( $this->getFullURL( $query ) );
834 * Get the URL form for an internal link.
835 * - Used in various Squid-related code, in case we have a different
836 * internal hostname for the server from the exposed one.
838 * @param $query \type{\string} an optional query string
839 * @param $variant \type{\string} language variant of url (for sr, zh..)
840 * @return \type{\string} the URL
842 public function getInternalURL( $query = '', $variant = false ) {
843 global $wgInternalServer;
844 $url = $wgInternalServer . $this->getLocalURL( $query, $variant );
845 wfRunHooks( 'GetInternalURL', array( &$this, &$url, $query ) );
850 * Get the edit URL for this Title
851 * @return \type{\string} the URL, or a null string if this is an
854 public function getEditURL() {
855 if ( '' != $this->mInterwiki
) { return ''; }
856 $s = $this->getLocalURL( 'action=edit' );
862 * Get the HTML-escaped displayable text form.
863 * Used for the title field in <a> tags.
864 * @return \type{\string} the text, including any prefixes
866 public function getEscapedText() {
867 return htmlspecialchars( $this->getPrefixedText() );
871 * Is this Title interwiki?
872 * @return \type{\bool}
874 public function isExternal() { return ( '' != $this->mInterwiki
); }
877 * Is this page "semi-protected" - the *only* protection is autoconfirm?
879 * @param @action \type{\string} Action to check (default: edit)
880 * @return \type{\bool}
882 public function isSemiProtected( $action = 'edit' ) {
883 if( $this->exists() ) {
884 $restrictions = $this->getRestrictions( $action );
885 if( count( $restrictions ) > 0 ) {
886 foreach( $restrictions as $restriction ) {
887 if( strtolower( $restriction ) != 'autoconfirmed' )
896 # If it doesn't exist, it can't be protected
902 * Does the title correspond to a protected article?
903 * @param $what \type{\string} the action the page is protected from,
904 * by default checks move and edit
905 * @return \type{\bool}
907 public function isProtected( $action = '' ) {
908 global $wgRestrictionLevels, $wgRestrictionTypes;
910 # Special pages have inherent protection
911 if( $this->getNamespace() == NS_SPECIAL
)
914 # Check regular protection levels
915 foreach( $wgRestrictionTypes as $type ){
916 if( $action == $type ||
$action == '' ) {
917 $r = $this->getRestrictions( $type );
918 foreach( $wgRestrictionLevels as $level ) {
919 if( in_array( $level, $r ) && $level != '' ) {
930 * Is $wgUser watching this page?
931 * @return \type{\bool}
933 public function userIsWatching() {
936 if ( is_null( $this->mWatched
) ) {
937 if ( NS_SPECIAL
== $this->mNamespace ||
!$wgUser->isLoggedIn()) {
938 $this->mWatched
= false;
940 $this->mWatched
= $wgUser->isWatched( $this );
943 return $this->mWatched
;
947 * Can $wgUser perform $action on this page?
948 * This skips potentially expensive cascading permission checks.
950 * Suitable for use for nonessential UI controls in common cases, but
951 * _not_ for functional access control.
953 * May provide false positives, but should never provide a false negative.
955 * @param $action \type{\string} action that permission needs to be checked for
956 * @return \type{\bool}
958 public function quickUserCan( $action ) {
959 return $this->userCan( $action, false );
963 * Determines if $wgUser is unable to edit this page because it has been protected
964 * by $wgNamespaceProtection.
966 * @return \type{\bool}
968 public function isNamespaceProtected() {
969 global $wgNamespaceProtection, $wgUser;
970 if( isset( $wgNamespaceProtection[ $this->mNamespace
] ) ) {
971 foreach( (array)$wgNamespaceProtection[ $this->mNamespace
] as $right ) {
972 if( $right != '' && !$wgUser->isAllowed( $right ) )
980 * Can $wgUser perform $action on this page?
981 * @param $action \type{\string} action that permission needs to be checked for
982 * @param $doExpensiveQueries \type{\bool} Set this to false to avoid doing unnecessary queries.
983 * @return \type{\bool}
985 public function userCan( $action, $doExpensiveQueries = true ) {
987 return ( $this->getUserPermissionsErrorsInternal( $action, $wgUser, $doExpensiveQueries ) === array());
991 * Can $user perform $action on this page?
993 * FIXME: This *does not* check throttles (User::pingLimiter()).
995 * @param $action \type{\string}action that permission needs to be checked for
996 * @param $user \type{User} user to check
997 * @param $doExpensiveQueries \type{\bool} Set this to false to avoid doing unnecessary queries.
998 * @param $ignoreErrors \type{\arrayof{\string}} Set this to a list of message keys whose corresponding errors may be ignored.
999 * @return \type{\array} Array of arrays of the arguments to wfMsg to explain permissions problems.
1001 public function getUserPermissionsErrors( $action, $user, $doExpensiveQueries = true, $ignoreErrors = array() ) {
1002 if( !StubObject
::isRealObject( $user ) ) {
1003 //Since StubObject is always used on globals, we can unstub $wgUser here and set $user = $wgUser
1005 $wgUser->_unstub( '', 5 );
1008 $errors = $this->getUserPermissionsErrorsInternal( $action, $user, $doExpensiveQueries );
1012 global $wgEmailConfirmToEdit;
1014 if ( $wgEmailConfirmToEdit && !$user->isEmailConfirmed() && $action != 'createaccount' ) {
1015 $errors[] = array( 'confirmedittext' );
1018 // Edit blocks should not affect reading. Account creation blocks handled at userlogin.
1019 if ( $user->isBlockedFrom( $this ) && $action != 'read' && $action != 'createaccount' ) {
1020 $block = $user->mBlock
;
1022 // This is from OutputPage::blockedPage
1023 // Copied at r23888 by werdna
1025 $id = $user->blockedBy();
1026 $reason = $user->blockedFor();
1027 if( $reason == '' ) {
1028 $reason = wfMsg( 'blockednoreason' );
1032 if ( is_numeric( $id ) ) {
1033 $name = User
::whoIs( $id );
1038 $link = '[[' . $wgContLang->getNsText( NS_USER
) . ":{$name}|{$name}]]";
1039 $blockid = $block->mId
;
1040 $blockExpiry = $user->mBlock
->mExpiry
;
1041 $blockTimestamp = $wgLang->timeanddate( wfTimestamp( TS_MW
, $user->mBlock
->mTimestamp
), true );
1043 if ( $blockExpiry == 'infinity' ) {
1044 // Entry in database (table ipblocks) is 'infinity' but 'ipboptions' uses 'infinite' or 'indefinite'
1045 $scBlockExpiryOptions = wfMsg( 'ipboptions' );
1047 foreach ( explode( ',', $scBlockExpiryOptions ) as $option ) {
1048 if ( strpos( $option, ':' ) == false )
1051 list ($show, $value) = explode( ":", $option );
1053 if ( $value == 'infinite' ||
$value == 'indefinite' ) {
1054 $blockExpiry = $show;
1059 $blockExpiry = $wgLang->timeanddate( wfTimestamp( TS_MW
, $blockExpiry ), true );
1062 $intended = $user->mBlock
->mAddress
;
1064 $errors[] = array( ($block->mAuto ?
'autoblockedtext' : 'blockedtext'), $link, $reason, $ip, $name,
1065 $blockid, $blockExpiry, $intended, $blockTimestamp );
1068 // Remove the errors being ignored.
1070 foreach( $errors as $index => $error ) {
1071 $error_key = is_array($error) ?
$error[0] : $error;
1073 if (in_array( $error_key, $ignoreErrors )) {
1074 unset($errors[$index]);
1082 * Can $user perform $action on this page? This is an internal function,
1083 * which checks ONLY that previously checked by userCan (i.e. it leaves out
1084 * checks on wfReadOnly() and blocks)
1086 * @param $action \type{\string} action that permission needs to be checked for
1087 * @param $user \type{User} user to check
1088 * @param $doExpensiveQueries \type{\bool} Set this to false to avoid doing unnecessary queries.
1089 * @return \type{\array} Array of arrays of the arguments to wfMsg to explain permissions problems.
1091 private function getUserPermissionsErrorsInternal( $action, $user, $doExpensiveQueries = true ) {
1092 wfProfileIn( __METHOD__
);
1096 // Use getUserPermissionsErrors instead
1097 if( !wfRunHooks( 'userCan', array( &$this, &$user, $action, &$result ) ) ) {
1098 wfProfileOut( __METHOD__
);
1099 return $result ?
array() : array( array( 'badaccess-group0' ) );
1102 if( !wfRunHooks( 'getUserPermissionsErrors', array(&$this,&$user,$action,&$result) ) ) {
1103 if( is_array($result) && count($result) && !is_array($result[0]) )
1104 $errors[] = $result; # A single array representing an error
1105 else if( is_array($result) && is_array($result[0]) )
1106 $errors = array_merge( $errors, $result ); # A nested array representing multiple errors
1107 else if( $result !== '' && is_string($result) )
1108 $errors[] = array($result); # A string representing a message-id
1109 else if( $result === false )
1110 $errors[] = array('badaccess-group0'); # a generic "We don't want them to do that"
1112 if( $doExpensiveQueries && !wfRunHooks( 'getUserPermissionsErrorsExpensive', array(&$this,&$user,$action,&$result) ) ) {
1113 if( is_array($result) && count($result) && !is_array($result[0]) )
1114 $errors[] = $result; # A single array representing an error
1115 else if( is_array($result) && is_array($result[0]) )
1116 $errors = array_merge( $errors, $result ); # A nested array representing multiple errors
1117 else if( $result !== '' && is_string($result) )
1118 $errors[] = array($result); # A string representing a message-id
1119 else if( $result === false )
1120 $errors[] = array('badaccess-group0'); # a generic "We don't want them to do that"
1124 $specialOKActions = array( 'createaccount', 'execute' );
1125 if( NS_SPECIAL
== $this->mNamespace
&& !in_array( $action, $specialOKActions) ) {
1126 $errors[] = array('ns-specialprotected');
1129 if( $this->isNamespaceProtected() ) {
1130 $ns = $this->getNamespace() == NS_MAIN ?
1131 wfMsg( 'nstab-main' ) : $this->getNsText();
1132 $errors[] = NS_MEDIAWIKI
== $this->mNamespace ?
1133 array('protectedinterface') : array( 'namespaceprotected', $ns );
1136 # protect css/js subpages of user pages
1137 # XXX: this might be better using restrictions
1138 # XXX: Find a way to work around the php bug that prevents using $this->userCanEditCssJsSubpage() from working
1139 if( $this->isCssJsSubpage() && !$user->isAllowed('editusercssjs')
1140 && !preg_match('/^'.preg_quote($user->getName(), '/').'\//', $this->mTextform
) )
1142 $errors[] = array('customcssjsprotected');
1145 if( $doExpensiveQueries && !$this->isCssJsSubpage() ) {
1146 # We /could/ use the protection level on the source page, but it's fairly ugly
1147 # as we have to establish a precedence hierarchy for pages included by multiple
1148 # cascade-protected pages. So just restrict it to people with 'protect' permission,
1149 # as they could remove the protection anyway.
1150 list( $cascadingSources, $restrictions ) = $this->getCascadeProtectionSources();
1151 # Cascading protection depends on more than this page...
1152 # Several cascading protected pages may include this page...
1153 # Check each cascading level
1154 # This is only for protection restrictions, not for all actions
1155 if( $cascadingSources > 0 && isset($restrictions[$action]) ) {
1156 foreach( $restrictions[$action] as $right ) {
1157 $right = ( $right == 'sysop' ) ?
'protect' : $right;
1158 if( '' != $right && !$user->isAllowed( $right ) ) {
1160 foreach( $cascadingSources as $page )
1161 $pages .= '* [[:' . $page->getPrefixedText() . "]]\n";
1162 $errors[] = array( 'cascadeprotected', count( $cascadingSources ), $pages );
1168 foreach( $this->getRestrictions($action) as $right ) {
1169 // Backwards compatibility, rewrite sysop -> protect
1170 if( $right == 'sysop' ) {
1173 if( '' != $right && !$user->isAllowed( $right ) ) {
1174 // Users with 'editprotected' permission can edit protected pages
1175 if( $action=='edit' && $user->isAllowed( 'editprotected' ) ) {
1176 // Users with 'editprotected' permission cannot edit protected pages
1177 // with cascading option turned on.
1178 if( $this->mCascadeRestriction
) {
1179 $errors[] = array( 'protectedpagetext', $right );
1181 // Nothing, user can edit!
1184 $errors[] = array( 'protectedpagetext', $right );
1189 if( $action == 'protect' ) {
1190 if( $this->getUserPermissionsErrors('edit', $user) != array() ) {
1191 $errors[] = array( 'protect-cantedit' ); // If they can't edit, they shouldn't protect.
1195 if( $action == 'create' ) {
1196 $title_protection = $this->getTitleProtection();
1197 if( is_array($title_protection) ) {
1198 extract($title_protection); // is this extract() really needed?
1200 if( $pt_create_perm == 'sysop' ) {
1201 $pt_create_perm = 'protect'; // B/C
1203 if( $pt_create_perm == '' ||
!$user->isAllowed($pt_create_perm) ) {
1204 $errors[] = array( 'titleprotected', User
::whoIs($pt_user), $pt_reason );
1208 if( ( $this->isTalkPage() && !$user->isAllowed( 'createtalk' ) ) ||
1209 ( !$this->isTalkPage() && !$user->isAllowed( 'createpage' ) ) )
1211 $errors[] = $user->isAnon() ?
array ('nocreatetext') : array ('nocreate-loggedin');
1213 } elseif( $action == 'move' ) {
1214 if( !$user->isAllowed( 'move' ) ) {
1215 // User can't move anything
1216 $errors[] = $user->isAnon() ?
array ( 'movenologintext' ) : array ('movenotallowed');
1217 } elseif( !$user->isAllowed( 'move-rootuserpages' )
1218 && $this->getNamespace() == NS_USER
&& !$this->isSubpage() )
1220 // Show user page-specific message only if the user can move other pages
1221 $errors[] = array( 'cant-move-user-page' );
1223 // Check for immobile pages
1224 if( !MWNamespace
::isMovable( $this->getNamespace() ) ) {
1225 // Specific message for this case
1226 $errors[] = array( 'immobile-source-namespace', $this->getNsText() );
1227 } elseif( !$this->isMovable() ) {
1228 // Less specific message for rarer cases
1229 $errors[] = array( 'immobile-page' );
1231 } elseif( $action == 'move-target' ) {
1232 if( !$user->isAllowed( 'move' ) ) {
1233 // User can't move anything
1234 $errors[] = $user->isAnon() ?
array ( 'movenologintext' ) : array ('movenotallowed');
1235 } elseif( !$user->isAllowed( 'move-rootuserpages' )
1236 && $this->getNamespace() == NS_USER
&& !$this->isSubpage() )
1238 // Show user page-specific message only if the user can move other pages
1239 $errors[] = array( 'cant-move-to-user-page' );
1241 if( !MWNamespace
::isMovable( $this->getNamespace() ) ) {
1242 $errors[] = array( 'immobile-target-namespace', $this->getNsText() );
1243 } elseif( !$this->isMovable() ) {
1244 $errors[] = array( 'immobile-target-page' );
1246 } elseif( !$user->isAllowed( $action ) ) {
1248 $groups = array_map( array( 'User', 'makeGroupLinkWiki' ),
1249 User
::getGroupsWithPermission( $action ) );
1251 $return = array( 'badaccess-groups',
1252 array( implode( ', ', $groups ), count( $groups ) ) );
1254 $return = array( "badaccess-group0" );
1256 $errors[] = $return;
1259 wfProfileOut( __METHOD__
);
1264 * Is this title subject to title protection?
1265 * @return \type{\mixed} An associative array representing any existent title
1266 * protection, or false if there's none.
1268 private function getTitleProtection() {
1269 // Can't protect pages in special namespaces
1270 if ( $this->getNamespace() < 0 ) {
1274 $dbr = wfGetDB( DB_SLAVE
);
1275 $res = $dbr->select( 'protected_titles', '*',
1276 array( 'pt_namespace' => $this->getNamespace(), 'pt_title' => $this->getDBkey() ),
1279 if ($row = $dbr->fetchRow( $res )) {
1287 * Update the title protection status
1288 * @param $create_perm \type{\string} Permission required for creation
1289 * @param $reason \type{\string} Reason for protection
1290 * @param $expiry \type{\string} Expiry timestamp
1292 public function updateTitleProtection( $create_perm, $reason, $expiry ) {
1293 global $wgUser,$wgContLang;
1295 if ($create_perm == implode(',',$this->getRestrictions('create'))
1296 && $expiry == $this->mRestrictionsExpiry
['create']) {
1301 list ($namespace, $title) = array( $this->getNamespace(), $this->getDBkey() );
1303 $dbw = wfGetDB( DB_MASTER
);
1305 $encodedExpiry = Block
::encodeExpiry($expiry, $dbw );
1307 $expiry_description = '';
1308 if ( $encodedExpiry != 'infinity' ) {
1309 $expiry_description = ' (' . wfMsgForContent( 'protect-expiring', $wgContLang->timeanddate( $expiry ) ).')';
1312 $expiry_description .= ' (' . wfMsgForContent( 'protect-expiry-indefinite' ).')';
1315 # Update protection table
1316 if ($create_perm != '' ) {
1317 $dbw->replace( 'protected_titles', array(array('pt_namespace', 'pt_title')),
1318 array( 'pt_namespace' => $namespace, 'pt_title' => $title
1319 , 'pt_create_perm' => $create_perm
1320 , 'pt_timestamp' => Block
::encodeExpiry(wfTimestampNow(), $dbw)
1321 , 'pt_expiry' => $encodedExpiry
1322 , 'pt_user' => $wgUser->getId(), 'pt_reason' => $reason ), __METHOD__
);
1324 $dbw->delete( 'protected_titles', array( 'pt_namespace' => $namespace,
1325 'pt_title' => $title ), __METHOD__
);
1327 # Update the protection log
1328 $log = new LogPage( 'protect' );
1330 if( $create_perm ) {
1331 $params = array("[create=$create_perm] $expiry_description",'');
1332 $log->addEntry( $this->mRestrictions
['create'] ?
'modify' : 'protect', $this, trim( $reason ), $params );
1334 $log->addEntry( 'unprotect', $this, $reason );
1341 * Remove any title protection due to page existing
1343 public function deleteTitleProtection() {
1344 $dbw = wfGetDB( DB_MASTER
);
1346 $dbw->delete( 'protected_titles',
1347 array( 'pt_namespace' => $this->getNamespace(), 'pt_title' => $this->getDBkey() ),
1352 * Can $wgUser edit this page?
1353 * @return \type{\bool} TRUE or FALSE
1354 * @deprecated use userCan('edit')
1356 public function userCanEdit( $doExpensiveQueries = true ) {
1357 return $this->userCan( 'edit', $doExpensiveQueries );
1361 * Can $wgUser create this page?
1362 * @return \type{\bool} TRUE or FALSE
1363 * @deprecated use userCan('create')
1365 public function userCanCreate( $doExpensiveQueries = true ) {
1366 return $this->userCan( 'create', $doExpensiveQueries );
1370 * Can $wgUser move this page?
1371 * @return \type{\bool} TRUE or FALSE
1372 * @deprecated use userCan('move')
1374 public function userCanMove( $doExpensiveQueries = true ) {
1375 return $this->userCan( 'move', $doExpensiveQueries );
1379 * Would anybody with sufficient privileges be able to move this page?
1380 * Some pages just aren't movable.
1382 * @return \type{\bool} TRUE or FALSE
1384 public function isMovable() {
1385 return MWNamespace
::isMovable( $this->getNamespace() ) && $this->getInterwiki() == '';
1389 * Can $wgUser read this page?
1390 * @return \type{\bool} TRUE or FALSE
1391 * @todo fold these checks into userCan()
1393 public function userCanRead() {
1394 global $wgUser, $wgGroupPermissions;
1397 wfRunHooks( 'userCan', array( &$this, &$wgUser, 'read', &$result ) );
1398 if ( $result !== null ) {
1402 # Shortcut for public wikis, allows skipping quite a bit of code
1403 if ($wgGroupPermissions['*']['read'])
1406 if( $wgUser->isAllowed( 'read' ) ) {
1409 global $wgWhitelistRead;
1412 * Always grant access to the login page.
1413 * Even anons need to be able to log in.
1415 if( $this->isSpecial( 'Userlogin' ) ||
$this->isSpecial( 'Resetpass' ) ) {
1420 * Bail out if there isn't whitelist
1422 if( !is_array($wgWhitelistRead) ) {
1427 * Check for explicit whitelisting
1429 $name = $this->getPrefixedText();
1430 $dbName = $this->getPrefixedDBKey();
1431 // Check with and without underscores
1432 if( in_array($name,$wgWhitelistRead,true) ||
in_array($dbName,$wgWhitelistRead,true) )
1436 * Old settings might have the title prefixed with
1437 * a colon for main-namespace pages
1439 if( $this->getNamespace() == NS_MAIN
) {
1440 if( in_array( ':' . $name, $wgWhitelistRead ) )
1445 * If it's a special page, ditch the subpage bit
1448 if( $this->getNamespace() == NS_SPECIAL
) {
1449 $name = $this->getDBkey();
1450 list( $name, /* $subpage */) = SpecialPage
::resolveAliasWithSubpage( $name );
1451 if ( $name === false ) {
1452 # Invalid special page, but we show standard login required message
1456 $pure = SpecialPage
::getTitleFor( $name )->getPrefixedText();
1457 if( in_array( $pure, $wgWhitelistRead, true ) )
1466 * Is this a talk page of some sort?
1467 * @return \type{\bool} TRUE or FALSE
1469 public function isTalkPage() {
1470 return MWNamespace
::isTalk( $this->getNamespace() );
1474 * Is this a subpage?
1475 * @return \type{\bool} TRUE or FALSE
1477 public function isSubpage() {
1478 return MWNamespace
::hasSubpages( $this->mNamespace
)
1479 ?
strpos( $this->getText(), '/' ) !== false
1484 * Does this have subpages? (Warning, usually requires an extra DB query.)
1485 * @return \type{\bool} TRUE or FALSE
1487 public function hasSubpages() {
1488 if( !MWNamespace
::hasSubpages( $this->mNamespace
) ) {
1493 # We dynamically add a member variable for the purpose of this method
1494 # alone to cache the result. There's no point in having it hanging
1495 # around uninitialized in every Title object; therefore we only add it
1496 # if needed and don't declare it statically.
1497 if( isset( $this->mHasSubpages
) ) {
1498 return $this->mHasSubpages
;
1501 $db = wfGetDB( DB_SLAVE
);
1502 return $this->mHasSubpages
= (bool)$db->selectField( 'page', '1',
1503 "page_namespace = {$this->mNamespace} AND page_title LIKE '"
1504 . $db->escapeLike( $this->mDbkeyform
) . "/%'",
1510 * Could this page contain custom CSS or JavaScript, based
1513 * @return \type{\bool} TRUE or FALSE
1515 public function isCssOrJsPage() {
1516 return $this->mNamespace
== NS_MEDIAWIKI
1517 && preg_match( '!\.(?:css|js)$!u', $this->mTextform
) > 0;
1521 * Is this a .css or .js subpage of a user page?
1522 * @return \type{\bool} TRUE or FALSE
1524 public function isCssJsSubpage() {
1525 return ( NS_USER
== $this->mNamespace
and preg_match("/\\/.*\\.(?:css|js)$/", $this->mTextform
) );
1528 * Is this a *valid* .css or .js subpage of a user page?
1529 * Check that the corresponding skin exists
1530 * @return \type{\bool} TRUE or FALSE
1532 public function isValidCssJsSubpage() {
1533 if ( $this->isCssJsSubpage() ) {
1534 $skinNames = Skin
::getSkinNames();
1535 return array_key_exists( $this->getSkinFromCssJsSubpage(), $skinNames );
1541 * Trim down a .css or .js subpage title to get the corresponding skin name
1543 public function getSkinFromCssJsSubpage() {
1544 $subpage = explode( '/', $this->mTextform
);
1545 $subpage = $subpage[ count( $subpage ) - 1 ];
1546 return( str_replace( array( '.css', '.js' ), array( '', '' ), $subpage ) );
1549 * Is this a .css subpage of a user page?
1550 * @return \type{\bool} TRUE or FALSE
1552 public function isCssSubpage() {
1553 return ( NS_USER
== $this->mNamespace
&& preg_match("/\\/.*\\.css$/", $this->mTextform
) );
1556 * Is this a .js subpage of a user page?
1557 * @return \type{\bool} TRUE or FALSE
1559 public function isJsSubpage() {
1560 return ( NS_USER
== $this->mNamespace
&& preg_match("/\\/.*\\.js$/", $this->mTextform
) );
1563 * Protect css/js subpages of user pages: can $wgUser edit
1566 * @return \type{\bool} TRUE or FALSE
1567 * @todo XXX: this might be better using restrictions
1569 public function userCanEditCssJsSubpage() {
1571 return ( $wgUser->isAllowed('editusercssjs') ||
preg_match('/^'.preg_quote($wgUser->getName(), '/').'\//', $this->mTextform
) );
1575 * Cascading protection: Return true if cascading restrictions apply to this page, false if not.
1577 * @return \type{\bool} If the page is subject to cascading restrictions.
1579 public function isCascadeProtected() {
1580 list( $sources, /* $restrictions */ ) = $this->getCascadeProtectionSources( false );
1581 return ( $sources > 0 );
1585 * Cascading protection: Get the source of any cascading restrictions on this page.
1587 * @param $get_pages \type{\bool} Whether or not to retrieve the actual pages that the restrictions have come from.
1588 * @return \type{\arrayof{mixed title array, restriction array}} Array of the Title objects of the pages from
1589 * which cascading restrictions have come, false for none, or true if such restrictions exist, but $get_pages was not set.
1590 * The restriction array is an array of each type, each of which contains an array of unique groups.
1592 public function getCascadeProtectionSources( $get_pages = true ) {
1593 global $wgRestrictionTypes;
1595 # Define our dimension of restrictions types
1596 $pagerestrictions = array();
1597 foreach( $wgRestrictionTypes as $action )
1598 $pagerestrictions[$action] = array();
1600 if ( isset( $this->mCascadeSources
) && $get_pages ) {
1601 return array( $this->mCascadeSources
, $this->mCascadingRestrictions
);
1602 } else if ( isset( $this->mHasCascadingRestrictions
) && !$get_pages ) {
1603 return array( $this->mHasCascadingRestrictions
, $pagerestrictions );
1606 wfProfileIn( __METHOD__
);
1608 $dbr = wfGetDB( DB_SLAVE
);
1610 if ( $this->getNamespace() == NS_FILE
) {
1611 $tables = array ('imagelinks', 'page_restrictions');
1612 $where_clauses = array(
1613 'il_to' => $this->getDBkey(),
1615 'pr_cascade' => 1 );
1617 $tables = array ('templatelinks', 'page_restrictions');
1618 $where_clauses = array(
1619 'tl_namespace' => $this->getNamespace(),
1620 'tl_title' => $this->getDBkey(),
1622 'pr_cascade' => 1 );
1626 $cols = array('pr_page', 'page_namespace', 'page_title', 'pr_expiry', 'pr_type', 'pr_level' );
1627 $where_clauses[] = 'page_id=pr_page';
1630 $cols = array( 'pr_expiry' );
1633 $res = $dbr->select( $tables, $cols, $where_clauses, __METHOD__
);
1635 $sources = $get_pages ?
array() : false;
1636 $now = wfTimestampNow();
1637 $purgeExpired = false;
1639 foreach( $res as $row ) {
1640 $expiry = Block
::decodeExpiry( $row->pr_expiry
);
1641 if( $expiry > $now ) {
1643 $page_id = $row->pr_page
;
1644 $page_ns = $row->page_namespace
;
1645 $page_title = $row->page_title
;
1646 $sources[$page_id] = Title
::makeTitle($page_ns, $page_title);
1647 # Add groups needed for each restriction type if its not already there
1648 # Make sure this restriction type still exists
1649 if ( isset($pagerestrictions[$row->pr_type
]) && !in_array($row->pr_level
, $pagerestrictions[$row->pr_type
]) ) {
1650 $pagerestrictions[$row->pr_type
][]=$row->pr_level
;
1656 // Trigger lazy purge of expired restrictions from the db
1657 $purgeExpired = true;
1660 if( $purgeExpired ) {
1661 Title
::purgeExpiredRestrictions();
1664 wfProfileOut( __METHOD__
);
1667 $this->mCascadeSources
= $sources;
1668 $this->mCascadingRestrictions
= $pagerestrictions;
1670 $this->mHasCascadingRestrictions
= $sources;
1672 return array( $sources, $pagerestrictions );
1675 function areRestrictionsCascading() {
1676 if (!$this->mRestrictionsLoaded
) {
1677 $this->loadRestrictions();
1680 return $this->mCascadeRestriction
;
1684 * Loads a string into mRestrictions array
1685 * @param $res \type{Resource} restrictions as an SQL result.
1687 private function loadRestrictionsFromRow( $res, $oldFashionedRestrictions = NULL ) {
1688 global $wgRestrictionTypes;
1689 $dbr = wfGetDB( DB_SLAVE
);
1691 foreach( $wgRestrictionTypes as $type ){
1692 $this->mRestrictions
[$type] = array();
1693 $this->mRestrictionsExpiry
[$type] = Block
::decodeExpiry('');
1696 $this->mCascadeRestriction
= false;
1698 # Backwards-compatibility: also load the restrictions from the page record (old format).
1700 if ( $oldFashionedRestrictions === NULL ) {
1701 $oldFashionedRestrictions = $dbr->selectField( 'page', 'page_restrictions',
1702 array( 'page_id' => $this->getArticleId() ), __METHOD__
);
1705 if ($oldFashionedRestrictions != '') {
1707 foreach( explode( ':', trim( $oldFashionedRestrictions ) ) as $restrict ) {
1708 $temp = explode( '=', trim( $restrict ) );
1709 if(count($temp) == 1) {
1710 // old old format should be treated as edit/move restriction
1711 $this->mRestrictions
['edit'] = explode( ',', trim( $temp[0] ) );
1712 $this->mRestrictions
['move'] = explode( ',', trim( $temp[0] ) );
1714 $this->mRestrictions
[$temp[0]] = explode( ',', trim( $temp[1] ) );
1718 $this->mOldRestrictions
= true;
1722 if( $dbr->numRows( $res ) ) {
1723 # Current system - load second to make them override.
1724 $now = wfTimestampNow();
1725 $purgeExpired = false;
1727 foreach( $res as $row ) {
1728 # Cycle through all the restrictions.
1730 // Don't take care of restrictions types that aren't in $wgRestrictionTypes
1731 if( !in_array( $row->pr_type
, $wgRestrictionTypes ) )
1734 // This code should be refactored, now that it's being used more generally,
1735 // But I don't really see any harm in leaving it in Block for now -werdna
1736 $expiry = Block
::decodeExpiry( $row->pr_expiry
);
1738 // Only apply the restrictions if they haven't expired!
1739 if ( !$expiry ||
$expiry > $now ) {
1740 $this->mRestrictionsExpiry
[$row->pr_type
] = $expiry;
1741 $this->mRestrictions
[$row->pr_type
] = explode( ',', trim( $row->pr_level
) );
1743 $this->mCascadeRestriction |
= $row->pr_cascade
;
1745 // Trigger a lazy purge of expired restrictions
1746 $purgeExpired = true;
1750 if( $purgeExpired ) {
1751 Title
::purgeExpiredRestrictions();
1755 $this->mRestrictionsLoaded
= true;
1759 * Load restrictions from the page_restrictions table
1761 public function loadRestrictions( $oldFashionedRestrictions = NULL ) {
1762 if( !$this->mRestrictionsLoaded
) {
1763 if ($this->exists()) {
1764 $dbr = wfGetDB( DB_SLAVE
);
1766 $res = $dbr->select( 'page_restrictions', '*',
1767 array ( 'pr_page' => $this->getArticleId() ), __METHOD__
);
1769 $this->loadRestrictionsFromRow( $res, $oldFashionedRestrictions );
1771 $title_protection = $this->getTitleProtection();
1773 if (is_array($title_protection)) {
1774 extract($title_protection);
1776 $now = wfTimestampNow();
1777 $expiry = Block
::decodeExpiry($pt_expiry);
1779 if (!$expiry ||
$expiry > $now) {
1780 // Apply the restrictions
1781 $this->mRestrictionsExpiry
['create'] = $expiry;
1782 $this->mRestrictions
['create'] = explode(',', trim($pt_create_perm) );
1783 } else { // Get rid of the old restrictions
1784 Title
::purgeExpiredRestrictions();
1787 $this->mRestrictionsExpiry
['create'] = Block
::decodeExpiry('');
1789 $this->mRestrictionsLoaded
= true;
1795 * Purge expired restrictions from the page_restrictions table
1797 static function purgeExpiredRestrictions() {
1798 $dbw = wfGetDB( DB_MASTER
);
1799 $dbw->delete( 'page_restrictions',
1800 array( 'pr_expiry < ' . $dbw->addQuotes( $dbw->timestamp() ) ),
1803 $dbw->delete( 'protected_titles',
1804 array( 'pt_expiry < ' . $dbw->addQuotes( $dbw->timestamp() ) ),
1809 * Accessor/initialisation for mRestrictions
1811 * @param $action \type{\string} action that permission needs to be checked for
1812 * @return \type{\arrayof{\string}} the array of groups allowed to edit this article
1814 public function getRestrictions( $action ) {
1815 if( !$this->mRestrictionsLoaded
) {
1816 $this->loadRestrictions();
1818 return isset( $this->mRestrictions
[$action] )
1819 ?
$this->mRestrictions
[$action]
1824 * Get the expiry time for the restriction against a given action
1825 * @return 14-char timestamp, or 'infinity' if the page is protected forever
1826 * or not protected at all, or false if the action is not recognised.
1828 public function getRestrictionExpiry( $action ) {
1829 if( !$this->mRestrictionsLoaded
) {
1830 $this->loadRestrictions();
1832 return isset( $this->mRestrictionsExpiry
[$action] ) ?
$this->mRestrictionsExpiry
[$action] : false;
1836 * Is there a version of this page in the deletion archive?
1837 * @return \type{\int} the number of archived revisions
1839 public function isDeleted() {
1840 $fname = 'Title::isDeleted';
1841 if ( $this->getNamespace() < 0 ) {
1844 $dbr = wfGetDB( DB_SLAVE
);
1845 $n = $dbr->selectField( 'archive', 'COUNT(*)', array( 'ar_namespace' => $this->getNamespace(),
1846 'ar_title' => $this->getDBkey() ), $fname );
1847 if( $this->getNamespace() == NS_FILE
) {
1848 $n +
= $dbr->selectField( 'filearchive', 'COUNT(*)',
1849 array( 'fa_name' => $this->getDBkey() ), $fname );
1856 * Get the article ID for this Title from the link cache,
1857 * adding it if necessary
1858 * @param $flags \type{\int} a bit field; may be GAID_FOR_UPDATE to select
1860 * @return \type{\int} the ID
1862 public function getArticleID( $flags = 0 ) {
1863 if( $this->getNamespace() < 0 ) {
1864 return $this->mArticleID
= 0;
1866 $linkCache = LinkCache
::singleton();
1867 if( $flags & GAID_FOR_UPDATE
) {
1868 $oldUpdate = $linkCache->forUpdate( true );
1869 $linkCache->clearLink( $this );
1870 $this->mArticleID
= $linkCache->addLinkObj( $this );
1871 $linkCache->forUpdate( $oldUpdate );
1873 if( -1 == $this->mArticleID
) {
1874 $this->mArticleID
= $linkCache->addLinkObj( $this );
1877 return $this->mArticleID
;
1881 * Is this an article that is a redirect page?
1882 * Uses link cache, adding it if necessary
1883 * @param $flags \type{\int} a bit field; may be GAID_FOR_UPDATE to select for update
1884 * @return \type{\bool}
1886 public function isRedirect( $flags = 0 ) {
1887 if( !is_null($this->mRedirect
) )
1888 return $this->mRedirect
;
1889 # Calling getArticleID() loads the field from cache as needed
1890 if( !$this->getArticleID($flags) ) {
1891 return $this->mRedirect
= false;
1893 $linkCache = LinkCache
::singleton();
1894 $this->mRedirect
= (bool)$linkCache->getGoodLinkFieldObj( $this, 'redirect' );
1896 return $this->mRedirect
;
1900 * What is the length of this page?
1901 * Uses link cache, adding it if necessary
1902 * @param $flags \type{\int} a bit field; may be GAID_FOR_UPDATE to select for update
1903 * @return \type{\bool}
1905 public function getLength( $flags = 0 ) {
1906 if( $this->mLength
!= -1 )
1907 return $this->mLength
;
1908 # Calling getArticleID() loads the field from cache as needed
1909 if( !$this->getArticleID($flags) ) {
1910 return $this->mLength
= 0;
1912 $linkCache = LinkCache
::singleton();
1913 $this->mLength
= intval( $linkCache->getGoodLinkFieldObj( $this, 'length' ) );
1915 return $this->mLength
;
1919 * What is the page_latest field for this page?
1920 * @param $flags \type{\int} a bit field; may be GAID_FOR_UPDATE to select for update
1921 * @return \type{\int}
1923 public function getLatestRevID( $flags = 0 ) {
1924 if( $this->mLatestID
!== false )
1925 return $this->mLatestID
;
1927 $db = ($flags & GAID_FOR_UPDATE
) ?
wfGetDB(DB_MASTER
) : wfGetDB(DB_SLAVE
);
1928 $this->mLatestID
= $db->selectField( 'page', 'page_latest', $this->pageCond(), __METHOD__
);
1929 return $this->mLatestID
;
1933 * This clears some fields in this object, and clears any associated
1934 * keys in the "bad links" section of the link cache.
1936 * - This is called from Article::insertNewArticle() to allow
1937 * loading of the new page_id. It's also called from
1938 * Article::doDeleteArticle()
1940 * @param $newid \type{\int} the new Article ID
1942 public function resetArticleID( $newid ) {
1943 $linkCache = LinkCache
::singleton();
1944 $linkCache->clearBadLink( $this->getPrefixedDBkey() );
1946 if ( 0 == $newid ) { $this->mArticleID
= -1; }
1947 else { $this->mArticleID
= $newid; }
1948 $this->mRestrictionsLoaded
= false;
1949 $this->mRestrictions
= array();
1953 * Updates page_touched for this page; called from LinksUpdate.php
1954 * @return \type{\bool} true if the update succeded
1956 public function invalidateCache() {
1957 global $wgUseFileCache;
1958 if( wfReadOnly() ) {
1961 $dbw = wfGetDB( DB_MASTER
);
1962 $success = $dbw->update( 'page',
1963 array( 'page_touched' => $dbw->timestamp() ),
1967 if( $wgUseFileCache) {
1968 $cache = new HTMLFileCache( $this );
1969 @unlink
( $cache->fileCacheName() );
1975 * Prefix some arbitrary text with the namespace or interwiki prefix
1978 * @param $name \type{\string} the text
1979 * @return \type{\string} the prefixed text
1982 /* private */ function prefix( $name ) {
1984 if ( '' != $this->mInterwiki
) {
1985 $p = $this->mInterwiki
. ':';
1987 if ( 0 != $this->mNamespace
) {
1988 $p .= $this->getNsText() . ':';
1994 * Secure and split - main initialisation function for this object
1996 * Assumes that mDbkeyform has been set, and is urldecoded
1997 * and uses underscores, but not otherwise munged. This function
1998 * removes illegal characters, splits off the interwiki and
1999 * namespace prefixes, sets the other forms, and canonicalizes
2001 * @return \type{\bool} true on success
2003 private function secureAndSplit() {
2004 global $wgContLang, $wgLocalInterwiki, $wgCapitalLinks;
2007 static $rxTc = false;
2009 # Matching titles will be held as illegal.
2011 # Any character not allowed is forbidden...
2012 '[^' . Title
::legalChars() . ']' .
2013 # URL percent encoding sequences interfere with the ability
2014 # to round-trip titles -- you can't link to them consistently.
2015 '|%[0-9A-Fa-f]{2}' .
2016 # XML/HTML character references produce similar issues.
2017 '|&[A-Za-z0-9\x80-\xff]+;' .
2019 '|&#x[0-9A-Fa-f]+;' .
2023 $this->mInterwiki
= $this->mFragment
= '';
2024 $this->mNamespace
= $this->mDefaultNamespace
; # Usually NS_MAIN
2026 $dbkey = $this->mDbkeyform
;
2028 # Strip Unicode bidi override characters.
2029 # Sometimes they slip into cut-n-pasted page titles, where the
2030 # override chars get included in list displays.
2031 $dbkey = preg_replace( '/\xE2\x80[\x8E\x8F\xAA-\xAE]/S', '', $dbkey );
2033 # Clean up whitespace
2035 $dbkey = preg_replace( '/[ _]+/', '_', $dbkey );
2036 $dbkey = trim( $dbkey, '_' );
2038 if ( '' == $dbkey ) {
2042 if( false !== strpos( $dbkey, UTF8_REPLACEMENT
) ) {
2043 # Contained illegal UTF-8 sequences or forbidden Unicode chars.
2047 $this->mDbkeyform
= $dbkey;
2049 # Initial colon indicates main namespace rather than specified default
2050 # but should not create invalid {ns,title} pairs such as {0,Project:Foo}
2051 if ( ':' == $dbkey{0} ) {
2052 $this->mNamespace
= NS_MAIN
;
2053 $dbkey = substr( $dbkey, 1 ); # remove the colon but continue processing
2054 $dbkey = trim( $dbkey, '_' ); # remove any subsequent whitespace
2057 # Namespace or interwiki prefix
2061 if ( preg_match( "/^(.+?)_*:_*(.*)$/S", $dbkey, $m ) ) {
2063 if ( $ns = $wgContLang->getNsIndex( $p )) {
2064 # Ordinary namespace
2066 $this->mNamespace
= $ns;
2067 } elseif( Interwiki
::isValidInterwiki( $p ) ) {
2069 # Can't make a local interwiki link to an interwiki link.
2070 # That's just crazy!
2076 $this->mInterwiki
= $wgContLang->lc( $p );
2078 # Redundant interwiki prefix to the local wiki
2079 if ( 0 == strcasecmp( $this->mInterwiki
, $wgLocalInterwiki ) ) {
2080 if( $dbkey == '' ) {
2081 # Can't have an empty self-link
2084 $this->mInterwiki
= '';
2086 # Do another namespace split...
2090 # If there's an initial colon after the interwiki, that also
2091 # resets the default namespace
2092 if ( $dbkey !== '' && $dbkey[0] == ':' ) {
2093 $this->mNamespace
= NS_MAIN
;
2094 $dbkey = substr( $dbkey, 1 );
2097 # If there's no recognized interwiki or namespace,
2098 # then let the colon expression be part of the title.
2103 # We already know that some pages won't be in the database!
2105 if ( '' != $this->mInterwiki || NS_SPECIAL
== $this->mNamespace
) {
2106 $this->mArticleID
= 0;
2108 $fragment = strstr( $dbkey, '#' );
2109 if ( false !== $fragment ) {
2110 $this->setFragment( $fragment );
2111 $dbkey = substr( $dbkey, 0, strlen( $dbkey ) - strlen( $fragment ) );
2112 # remove whitespace again: prevents "Foo_bar_#"
2113 # becoming "Foo_bar_"
2114 $dbkey = preg_replace( '/_*$/', '', $dbkey );
2117 # Reject illegal characters.
2119 if( preg_match( $rxTc, $dbkey ) ) {
2124 * Pages with "/./" or "/../" appearing in the URLs will often be un-
2125 * reachable due to the way web browsers deal with 'relative' URLs.
2126 * Also, they conflict with subpage syntax. Forbid them explicitly.
2128 if ( strpos( $dbkey, '.' ) !== false &&
2129 ( $dbkey === '.' ||
$dbkey === '..' ||
2130 strpos( $dbkey, './' ) === 0 ||
2131 strpos( $dbkey, '../' ) === 0 ||
2132 strpos( $dbkey, '/./' ) !== false ||
2133 strpos( $dbkey, '/../' ) !== false ||
2134 substr( $dbkey, -2 ) == '/.' ||
2135 substr( $dbkey, -3 ) == '/..' ) )
2141 * Magic tilde sequences? Nu-uh!
2143 if( strpos( $dbkey, '~~~' ) !== false ) {
2148 * Limit the size of titles to 255 bytes.
2149 * This is typically the size of the underlying database field.
2150 * We make an exception for special pages, which don't need to be stored
2151 * in the database, and may edge over 255 bytes due to subpage syntax
2152 * for long titles, e.g. [[Special:Block/Long name]]
2154 if ( ( $this->mNamespace
!= NS_SPECIAL
&& strlen( $dbkey ) > 255 ) ||
2155 strlen( $dbkey ) > 512 )
2161 * Normally, all wiki links are forced to have
2162 * an initial capital letter so [[foo]] and [[Foo]]
2163 * point to the same place.
2165 * Don't force it for interwikis, since the other
2166 * site might be case-sensitive.
2168 $this->mUserCaseDBKey
= $dbkey;
2169 if( $wgCapitalLinks && $this->mInterwiki
== '') {
2170 $dbkey = $wgContLang->ucfirst( $dbkey );
2174 * Can't make a link to a namespace alone...
2175 * "empty" local links can only be self-links
2176 * with a fragment identifier.
2179 $this->mInterwiki
== '' &&
2180 $this->mNamespace
!= NS_MAIN
) {
2183 // Allow IPv6 usernames to start with '::' by canonicalizing IPv6 titles.
2184 // IP names are not allowed for accounts, and can only be referring to
2185 // edits from the IP. Given '::' abbreviations and caps/lowercaps,
2186 // there are numerous ways to present the same IP. Having sp:contribs scan
2187 // them all is silly and having some show the edits and others not is
2188 // inconsistent. Same for talk/userpages. Keep them normalized instead.
2189 $dbkey = ($this->mNamespace
== NS_USER ||
$this->mNamespace
== NS_USER_TALK
) ?
2190 IP
::sanitizeIP( $dbkey ) : $dbkey;
2191 // Any remaining initial :s are illegal.
2192 if ( $dbkey !== '' && ':' == $dbkey{0} ) {
2197 $this->mDbkeyform
= $dbkey;
2198 $this->mUrlform
= wfUrlencode( $dbkey );
2200 $this->mTextform
= str_replace( '_', ' ', $dbkey );
2206 * Set the fragment for this title. Removes the first character from the
2207 * specified fragment before setting, so it assumes you're passing it with
2210 * Deprecated for public use, use Title::makeTitle() with fragment parameter.
2211 * Still in active use privately.
2213 * @param $fragment \type{\string} text
2215 public function setFragment( $fragment ) {
2216 $this->mFragment
= str_replace( '_', ' ', substr( $fragment, 1 ) );
2220 * Get a Title object associated with the talk page of this article
2221 * @return \type{Title} the object for the talk page
2223 public function getTalkPage() {
2224 return Title
::makeTitle( MWNamespace
::getTalk( $this->getNamespace() ), $this->getDBkey() );
2228 * Get a title object associated with the subject page of this
2231 * @return \type{Title} the object for the subject page
2233 public function getSubjectPage() {
2234 // Is this the same title?
2235 $subjectNS = MWNamespace
::getSubject( $this->getNamespace() );
2236 if( $this->getNamespace() == $subjectNS ) {
2239 return Title
::makeTitle( $subjectNS, $this->getDBkey() );
2243 * Get an array of Title objects linking to this Title
2244 * Also stores the IDs in the link cache.
2246 * WARNING: do not use this function on arbitrary user-supplied titles!
2247 * On heavily-used templates it will max out the memory.
2249 * @param $options \type{\string} may be FOR UPDATE
2250 * @return \type{\arrayof{Title}} the Title objects linking here
2252 public function getLinksTo( $options = '', $table = 'pagelinks', $prefix = 'pl' ) {
2253 $linkCache = LinkCache
::singleton();
2256 $db = wfGetDB( DB_MASTER
);
2258 $db = wfGetDB( DB_SLAVE
);
2261 $res = $db->select( array( 'page', $table ),
2262 array( 'page_namespace', 'page_title', 'page_id', 'page_len', 'page_is_redirect' ),
2264 "{$prefix}_from=page_id",
2265 "{$prefix}_namespace" => $this->getNamespace(),
2266 "{$prefix}_title" => $this->getDBkey() ),
2271 if ( $db->numRows( $res ) ) {
2272 foreach( $res as $row ) {
2273 if ( $titleObj = Title
::makeTitle( $row->page_namespace
, $row->page_title
) ) {
2274 $linkCache->addGoodLinkObj( $row->page_id
, $titleObj, $row->page_len
, $row->page_is_redirect
);
2275 $retVal[] = $titleObj;
2279 $db->freeResult( $res );
2284 * Get an array of Title objects using this Title as a template
2285 * Also stores the IDs in the link cache.
2287 * WARNING: do not use this function on arbitrary user-supplied titles!
2288 * On heavily-used templates it will max out the memory.
2290 * @param $options \type{\string} may be FOR UPDATE
2291 * @return \type{\arrayof{Title}} the Title objects linking here
2293 public function getTemplateLinksTo( $options = '' ) {
2294 return $this->getLinksTo( $options, 'templatelinks', 'tl' );
2298 * Get an array of Title objects referring to non-existent articles linked from this page
2300 * @todo check if needed (used only in SpecialBrokenRedirects.php, and should use redirect table in this case)
2301 * @param $options \type{\string} may be FOR UPDATE
2302 * @return \type{\arrayof{Title}} the Title objects
2304 public function getBrokenLinksFrom( $options = '' ) {
2305 if ( $this->getArticleId() == 0 ) {
2306 # All links from article ID 0 are false positives
2311 $db = wfGetDB( DB_MASTER
);
2313 $db = wfGetDB( DB_SLAVE
);
2316 $res = $db->safeQuery(
2317 "SELECT pl_namespace, pl_title
2320 ON pl_namespace=page_namespace
2321 AND pl_title=page_title
2323 AND page_namespace IS NULL
2325 $db->tableName( 'pagelinks' ),
2326 $db->tableName( 'page' ),
2327 $this->getArticleId(),
2331 if ( $db->numRows( $res ) ) {
2332 foreach( $res as $row ) {
2333 $retVal[] = Title
::makeTitle( $row->pl_namespace
, $row->pl_title
);
2336 $db->freeResult( $res );
2342 * Get a list of URLs to purge from the Squid cache when this
2345 * @return \type{\arrayof{\string}} the URLs
2347 public function getSquidURLs() {
2351 $this->getInternalURL(),
2352 $this->getInternalURL( 'action=history' )
2355 // purge variant urls as well
2356 if($wgContLang->hasVariants()){
2357 $variants = $wgContLang->getVariants();
2358 foreach($variants as $vCode){
2359 if($vCode==$wgContLang->getCode()) continue; // we don't want default variant
2360 $urls[] = $this->getInternalURL('',$vCode);
2368 * Purge all applicable Squid URLs
2370 public function purgeSquid() {
2372 if ( $wgUseSquid ) {
2373 $urls = $this->getSquidURLs();
2374 $u = new SquidUpdate( $urls );
2380 * Move this page without authentication
2381 * @param &$nt \type{Title} the new page Title
2383 public function moveNoAuth( &$nt ) {
2384 return $this->moveTo( $nt, false );
2388 * Check whether a given move operation would be valid.
2389 * Returns true if ok, or a getUserPermissionsErrors()-like array otherwise
2390 * @param &$nt \type{Title} the new title
2391 * @param $auth \type{\bool} indicates whether $wgUser's permissions
2393 * @param $reason \type{\string} is the log summary of the move, used for spam checking
2394 * @return \type{\mixed} True on success, getUserPermissionsErrors()-like array on failure
2396 public function isValidMoveOperation( &$nt, $auth = true, $reason = '' ) {
2401 // Normally we'd add this to $errors, but we'll get
2402 // lots of syntax errors if $nt is not an object
2403 return array(array('badtitletext'));
2405 if( $this->equals( $nt ) ) {
2406 $errors[] = array('selfmove');
2408 if( !$this->isMovable() ) {
2409 $errors[] = array( 'immobile-source-namespace', $this->getNsText() );
2411 if ( $nt->getInterwiki() != '' ) {
2412 $errors[] = array( 'immobile-target-namespace-iw' );
2414 if ( !$nt->isMovable() ) {
2415 $errors[] = array('immobile-target-namespace', $nt->getNsText() );
2418 $oldid = $this->getArticleID();
2419 $newid = $nt->getArticleID();
2421 if ( strlen( $nt->getDBkey() ) < 1 ) {
2422 $errors[] = array('articleexists');
2424 if ( ( '' == $this->getDBkey() ) ||
2426 ( '' == $nt->getDBkey() ) ) {
2427 $errors[] = array('badarticleerror');
2430 // Image-specific checks
2431 if( $this->getNamespace() == NS_FILE
) {
2432 $file = wfLocalFile( $this );
2433 if( $file->exists() ) {
2434 if( $nt->getNamespace() != NS_FILE
) {
2435 $errors[] = array('imagenocrossnamespace');
2437 if( $nt->getText() != wfStripIllegalFilenameChars( $nt->getText() ) ) {
2438 $errors[] = array('imageinvalidfilename');
2440 if( !File
::checkExtensionCompatibility( $file, $nt->getDBKey() ) ) {
2441 $errors[] = array('imagetypemismatch');
2447 $errors = wfMergeErrorArrays( $errors,
2448 $this->getUserPermissionsErrors('move', $wgUser),
2449 $this->getUserPermissionsErrors('edit', $wgUser),
2450 $nt->getUserPermissionsErrors('move-target', $wgUser),
2451 $nt->getUserPermissionsErrors('edit', $wgUser) );
2454 $match = EditPage
::matchSpamRegex( $reason );
2455 if( $match !== false ) {
2456 // This is kind of lame, won't display nice
2457 $errors[] = array('spamprotectiontext');
2461 if( !wfRunHooks( 'AbortMove', array( $this, $nt, $wgUser, &$err, $reason ) ) ) {
2462 $errors[] = array('hookaborted', $err);
2465 # The move is allowed only if (1) the target doesn't exist, or
2466 # (2) the target is a redirect to the source, and has no history
2467 # (so we can undo bad moves right after they're done).
2469 if ( 0 != $newid ) { # Target exists; check for validity
2470 if ( ! $this->isValidMoveTarget( $nt ) ) {
2471 $errors[] = array('articleexists');
2474 $tp = $nt->getTitleProtection();
2475 $right = ( $tp['pt_create_perm'] == 'sysop' ) ?
'protect' : $tp['pt_create_perm'];
2476 if ( $tp and !$wgUser->isAllowed( $right ) ) {
2477 $errors[] = array('cantmove-titleprotected');
2486 * Move a title to a new location
2487 * @param &$nt \type{Title} the new title
2488 * @param $auth \type{\bool} indicates whether $wgUser's permissions
2490 * @param $reason \type{\string} The reason for the move
2491 * @param $createRedirect \type{\bool} Whether to create a redirect from the old title to the new title.
2492 * Ignored if the user doesn't have the suppressredirect right.
2493 * @return \type{\mixed} true on success, getUserPermissionsErrors()-like array on failure
2495 public function moveTo( &$nt, $auth = true, $reason = '', $createRedirect = true ) {
2496 $err = $this->isValidMoveOperation( $nt, $auth, $reason );
2497 if( is_array( $err ) ) {
2501 $pageid = $this->getArticleID();
2502 $protected = $this->isProtected();
2503 if( $nt->exists() ) {
2504 $err = $this->moveOverExistingRedirect( $nt, $reason, $createRedirect );
2505 $pageCountChange = ($createRedirect ?
0 : -1);
2506 } else { # Target didn't exist, do normal move.
2507 $err = $this->moveToNewTitle( $nt, $reason, $createRedirect );
2508 $pageCountChange = ($createRedirect ?
1 : 0);
2511 if( is_array( $err ) ) {
2514 $redirid = $this->getArticleID();
2516 // Category memberships include a sort key which may be customized.
2517 // If it's left as the default (the page title), we need to update
2518 // the sort key to match the new title.
2520 // Be careful to avoid resetting cl_timestamp, which may disturb
2521 // time-based lists on some sites.
2523 // Warning -- if the sort key is *explicitly* set to the old title,
2524 // we can't actually distinguish it from a default here, and it'll
2525 // be set to the new title even though it really shouldn't.
2526 // It'll get corrected on the next edit, but resetting cl_timestamp.
2527 $dbw = wfGetDB( DB_MASTER
);
2528 $dbw->update( 'categorylinks',
2530 'cl_sortkey' => $nt->getPrefixedText(),
2531 'cl_timestamp=cl_timestamp' ),
2533 'cl_from' => $pageid,
2534 'cl_sortkey' => $this->getPrefixedText() ),
2538 # Protect the redirect title as the title used to be...
2539 $dbw->insertSelect( 'page_restrictions', 'page_restrictions',
2541 'pr_page' => $redirid,
2542 'pr_type' => 'pr_type',
2543 'pr_level' => 'pr_level',
2544 'pr_cascade' => 'pr_cascade',
2545 'pr_user' => 'pr_user',
2546 'pr_expiry' => 'pr_expiry'
2548 array( 'pr_page' => $pageid ),
2552 # Update the protection log
2553 $log = new LogPage( 'protect' );
2554 $comment = wfMsgForContent('prot_1movedto2',$this->getPrefixedText(), $nt->getPrefixedText() );
2555 if( $reason ) $comment .= ': ' . $reason;
2556 $log->addEntry( 'move_prot', $nt, $comment, array($this->getPrefixedText()) ); // FIXME: $params?
2560 $oldnamespace = $this->getNamespace() & ~
1;
2561 $newnamespace = $nt->getNamespace() & ~
1;
2562 $oldtitle = $this->getDBkey();
2563 $newtitle = $nt->getDBkey();
2565 if( $oldnamespace != $newnamespace ||
$oldtitle != $newtitle ) {
2566 WatchedItem
::duplicateEntries( $this, $nt );
2569 # Update search engine
2570 $u = new SearchUpdate( $pageid, $nt->getPrefixedDBkey() );
2572 $u = new SearchUpdate( $redirid, $this->getPrefixedDBkey(), '' );
2576 if( $this->isContentPage() && !$nt->isContentPage() ) {
2577 # No longer a content page
2578 # Not viewed, edited, removing
2579 $u = new SiteStatsUpdate( 0, 1, -1, $pageCountChange );
2580 } elseif( !$this->isContentPage() && $nt->isContentPage() ) {
2581 # Now a content page
2582 # Not viewed, edited, adding
2583 $u = new SiteStatsUpdate( 0, 1, +
1, $pageCountChange );
2584 } elseif( $pageCountChange ) {
2586 $u = new SiteStatsUpdate( 0, 0, 0, 1 );
2593 # Update message cache for interface messages
2594 if( $nt->getNamespace() == NS_MEDIAWIKI
) {
2595 global $wgMessageCache;
2596 $oldarticle = new Article( $this );
2597 $wgMessageCache->replace( $this->getDBkey(), $oldarticle->getContent() );
2598 $newarticle = new Article( $nt );
2599 $wgMessageCache->replace( $nt->getDBkey(), $newarticle->getContent() );
2603 wfRunHooks( 'TitleMoveComplete', array( &$this, &$nt, &$wgUser, $pageid, $redirid ) );
2608 * Move page to a title which is at present a redirect to the
2611 * @param &$nt \type{Title} the page to move to, which should currently
2613 * @param $reason \type{\string} The reason for the move
2614 * @param $createRedirect \type{\bool} Whether to leave a redirect at the old title.
2615 * Ignored if the user doesn't have the suppressredirect right
2617 private function moveOverExistingRedirect( &$nt, $reason = '', $createRedirect = true ) {
2618 global $wgUseSquid, $wgUser;
2619 $fname = 'Title::moveOverExistingRedirect';
2620 $comment = wfMsgForContent( '1movedto2_redir', $this->getPrefixedText(), $nt->getPrefixedText() );
2623 $comment .= ": $reason";
2626 $now = wfTimestampNow();
2627 $newid = $nt->getArticleID();
2628 $oldid = $this->getArticleID();
2629 $latest = $this->getLatestRevID();
2631 $dbw = wfGetDB( DB_MASTER
);
2633 # Delete the old redirect. We don't save it to history since
2634 # by definition if we've got here it's rather uninteresting.
2635 # We have to remove it so that the next step doesn't trigger
2636 # a conflict on the unique namespace+title index...
2637 $dbw->delete( 'page', array( 'page_id' => $newid ), $fname );
2638 if ( !$dbw->cascadingDeletes() ) {
2639 $dbw->delete( 'revision', array( 'rev_page' => $newid ), __METHOD__
);
2640 global $wgUseTrackbacks;
2641 if ($wgUseTrackbacks)
2642 $dbw->delete( 'trackbacks', array( 'tb_page' => $newid ), __METHOD__
);
2643 $dbw->delete( 'pagelinks', array( 'pl_from' => $newid ), __METHOD__
);
2644 $dbw->delete( 'imagelinks', array( 'il_from' => $newid ), __METHOD__
);
2645 $dbw->delete( 'categorylinks', array( 'cl_from' => $newid ), __METHOD__
);
2646 $dbw->delete( 'templatelinks', array( 'tl_from' => $newid ), __METHOD__
);
2647 $dbw->delete( 'externallinks', array( 'el_from' => $newid ), __METHOD__
);
2648 $dbw->delete( 'langlinks', array( 'll_from' => $newid ), __METHOD__
);
2649 $dbw->delete( 'redirect', array( 'rd_from' => $newid ), __METHOD__
);
2652 # Save a null revision in the page's history notifying of the move
2653 $nullRevision = Revision
::newNullRevision( $dbw, $oldid, $comment, true );
2654 $nullRevId = $nullRevision->insertOn( $dbw );
2656 $article = new Article( $this );
2657 wfRunHooks( 'NewRevisionFromEditComplete', array($article, $nullRevision, $latest, $wgUser) );
2659 # Change the name of the target page:
2660 $dbw->update( 'page',
2662 'page_touched' => $dbw->timestamp($now),
2663 'page_namespace' => $nt->getNamespace(),
2664 'page_title' => $nt->getDBkey(),
2665 'page_latest' => $nullRevId,
2667 /* WHERE */ array( 'page_id' => $oldid ),
2670 $nt->resetArticleID( $oldid );
2672 # Recreate the redirect, this time in the other direction.
2673 if( $createRedirect ||
!$wgUser->isAllowed('suppressredirect') ) {
2674 $mwRedir = MagicWord
::get( 'redirect' );
2675 $redirectText = $mwRedir->getSynonym( 0 ) . ' [[' . $nt->getPrefixedText() . "]]\n";
2676 $redirectArticle = new Article( $this );
2677 $newid = $redirectArticle->insertOn( $dbw );
2678 $redirectRevision = new Revision( array(
2680 'comment' => $comment,
2681 'text' => $redirectText ) );
2682 $redirectRevision->insertOn( $dbw );
2683 $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
2685 wfRunHooks( 'NewRevisionFromEditComplete', array($redirectArticle, $redirectRevision, false, $wgUser) );
2687 # Now, we record the link from the redirect to the new title.
2688 # It should have no other outgoing links...
2689 $dbw->delete( 'pagelinks', array( 'pl_from' => $newid ), $fname );
2690 $dbw->insert( 'pagelinks',
2692 'pl_from' => $newid,
2693 'pl_namespace' => $nt->getNamespace(),
2694 'pl_title' => $nt->getDBkey() ),
2697 $this->resetArticleID( 0 );
2700 # Move an image if this is a file
2701 if( $this->getNamespace() == NS_FILE
) {
2702 $file = wfLocalFile( $this );
2703 if( $file->exists() ) {
2704 $status = $file->move( $nt );
2705 if( !$status->isOk() ) {
2707 return $status->getErrorsArray();
2713 $log = new LogPage( 'move' );
2714 $log->addEntry( 'move_redir', $this, $reason, array( 1 => $nt->getPrefixedText() ) );
2717 if ( $wgUseSquid ) {
2718 $urls = array_merge( $nt->getSquidURLs(), $this->getSquidURLs() );
2719 $u = new SquidUpdate( $urls );
2726 * Move page to non-existing title.
2727 * @param &$nt \type{Title} the new Title
2728 * @param $reason \type{\string} The reason for the move
2729 * @param $createRedirect \type{\bool} Whether to create a redirect from the old title to the new title
2730 * Ignored if the user doesn't have the suppressredirect right
2732 private function moveToNewTitle( &$nt, $reason = '', $createRedirect = true ) {
2733 global $wgUseSquid, $wgUser;
2734 $fname = 'MovePageForm::moveToNewTitle';
2735 $comment = wfMsgForContent( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() );
2737 $comment .= wfMsgExt( 'colon-separator',
2738 array( 'escapenoentities', 'content' ) );
2739 $comment .= $reason;
2742 $newid = $nt->getArticleID();
2743 $oldid = $this->getArticleID();
2744 $latest = $this->getLatestRevId();
2746 $dbw = wfGetDB( DB_MASTER
);
2747 $now = $dbw->timestamp();
2749 # Save a null revision in the page's history notifying of the move
2750 $nullRevision = Revision
::newNullRevision( $dbw, $oldid, $comment, true );
2751 $nullRevId = $nullRevision->insertOn( $dbw );
2753 $article = new Article( $this );
2754 wfRunHooks( 'NewRevisionFromEditComplete', array($article, $nullRevision, $latest, $wgUser) );
2757 $dbw->update( 'page',
2759 'page_touched' => $now,
2760 'page_namespace' => $nt->getNamespace(),
2761 'page_title' => $nt->getDBkey(),
2762 'page_latest' => $nullRevId,
2764 /* WHERE */ array( 'page_id' => $oldid ),
2767 $nt->resetArticleID( $oldid );
2769 if( $createRedirect ||
!$wgUser->isAllowed('suppressredirect') ) {
2771 $mwRedir = MagicWord
::get( 'redirect' );
2772 $redirectText = $mwRedir->getSynonym( 0 ) . ' [[' . $nt->getPrefixedText() . "]]\n";
2773 $redirectArticle = new Article( $this );
2774 $newid = $redirectArticle->insertOn( $dbw );
2775 $redirectRevision = new Revision( array(
2777 'comment' => $comment,
2778 'text' => $redirectText ) );
2779 $redirectRevision->insertOn( $dbw );
2780 $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
2782 wfRunHooks( 'NewRevisionFromEditComplete', array($redirectArticle, $redirectRevision, false, $wgUser) );
2784 # Record the just-created redirect's linking to the page
2785 $dbw->insert( 'pagelinks',
2787 'pl_from' => $newid,
2788 'pl_namespace' => $nt->getNamespace(),
2789 'pl_title' => $nt->getDBkey() ),
2792 $this->resetArticleID( 0 );
2795 # Move an image if this is a file
2796 if( $this->getNamespace() == NS_FILE
) {
2797 $file = wfLocalFile( $this );
2798 if( $file->exists() ) {
2799 $status = $file->move( $nt );
2800 if( !$status->isOk() ) {
2802 return $status->getErrorsArray();
2808 $log = new LogPage( 'move' );
2809 $log->addEntry( 'move', $this, $reason, array( 1 => $nt->getPrefixedText()) );
2811 # Purge caches as per article creation
2812 Article
::onArticleCreate( $nt );
2814 # Purge old title from squid
2815 # The new title, and links to the new title, are purged in Article::onArticleCreate()
2816 $this->purgeSquid();
2821 * Checks if this page is just a one-rev redirect.
2822 * Adds lock, so don't use just for light purposes.
2824 * @return \type{\bool} TRUE or FALSE
2826 public function isSingleRevRedirect() {
2827 $dbw = wfGetDB( DB_MASTER
);
2829 $row = $dbw->selectRow( 'page',
2830 array( 'page_is_redirect', 'page_latest', 'page_id' ),
2835 # Cache some fields we may want
2836 $this->mArticleID
= $row ?
intval($row->page_id
) : 0;
2837 $this->mRedirect
= $row ?
(bool)$row->page_is_redirect
: false;
2838 $this->mLatestID
= $row ?
intval($row->page_latest
) : false;
2839 if( !$this->mRedirect
) {
2842 # Does the article have a history?
2843 $row = $dbw->selectField( array( 'page', 'revision'),
2845 array( 'page_namespace' => $this->getNamespace(),
2846 'page_title' => $this->getDBkey(),
2848 'page_latest != rev_id'
2853 # Return true if there was no history
2854 return ($row === false);
2858 * Checks if $this can be moved to a given Title
2859 * - Selects for update, so don't call it unless you mean business
2861 * @param &$nt \type{Title} the new title to check
2862 * @return \type{\bool} TRUE or FALSE
2864 public function isValidMoveTarget( $nt ) {
2865 $dbw = wfGetDB( DB_MASTER
);
2866 # Is it an existsing file?
2867 if( $nt->getNamespace() == NS_FILE
) {
2868 $file = wfLocalFile( $nt );
2869 if( $file->exists() ) {
2870 wfDebug( __METHOD__
. ": file exists\n" );
2874 # Is it a redirect with no history?
2875 if( !$nt->isSingleRevRedirect() ) {
2876 wfDebug( __METHOD__
. ": not a one-rev redirect\n" );
2879 # Get the article text
2880 $rev = Revision
::newFromTitle( $nt );
2881 $text = $rev->getText();
2882 # Does the redirect point to the source?
2883 # Or is it a broken self-redirect, usually caused by namespace collisions?
2885 if ( preg_match( "/\\[\\[\\s*([^\\]\\|]*)]]/", $text, $m ) ) {
2886 $redirTitle = Title
::newFromText( $m[1] );
2887 if( !is_object( $redirTitle ) ||
2888 ( $redirTitle->getPrefixedDBkey() != $this->getPrefixedDBkey() &&
2889 $redirTitle->getPrefixedDBkey() != $nt->getPrefixedDBkey() ) ) {
2890 wfDebug( __METHOD__
. ": redirect points to other page\n" );
2895 wfDebug( __METHOD__
. ": failsafe\n" );
2902 * Can this title be added to a user's watchlist?
2904 * @return \type{\bool} TRUE or FALSE
2906 public function isWatchable() {
2907 return !$this->isExternal() && MWNamespace
::isWatchable( $this->getNamespace() );
2911 * Get categories to which this Title belongs and return an array of
2912 * categories' names.
2914 * @return \type{\array} array an array of parents in the form:
2915 * $parent => $currentarticle
2917 public function getParentCategories() {
2920 $titlekey = $this->getArticleId();
2921 $dbr = wfGetDB( DB_SLAVE
);
2922 $categorylinks = $dbr->tableName( 'categorylinks' );
2925 $sql = "SELECT * FROM $categorylinks"
2926 ." WHERE cl_from='$titlekey'"
2927 ." AND cl_from <> '0'"
2928 ." ORDER BY cl_sortkey";
2930 $res = $dbr->query( $sql );
2932 if( $dbr->numRows( $res ) > 0 ) {
2933 foreach( $res as $row )
2934 //$data[] = Title::newFromText($wgContLang->getNSText ( NS_CATEGORY ).':'.$row->cl_to);
2935 $data[$wgContLang->getNSText( NS_CATEGORY
).':'.$row->cl_to
] = $this->getFullText();
2936 $dbr->freeResult( $res );
2944 * Get a tree of parent categories
2945 * @param $children \type{\array} an array with the children in the keys, to check for circular refs
2946 * @return \type{\array} Tree of parent categories
2948 public function getParentCategoryTree( $children = array() ) {
2950 $parents = $this->getParentCategories();
2953 foreach( $parents as $parent => $current ) {
2954 if ( array_key_exists( $parent, $children ) ) {
2955 # Circular reference
2956 $stack[$parent] = array();
2958 $nt = Title
::newFromText($parent);
2960 $stack[$parent] = $nt->getParentCategoryTree( $children +
array($parent => 1) );
2972 * Get an associative array for selecting this title from
2975 * @return \type{\array} Selection array
2977 public function pageCond() {
2978 if( $this->mArticleID
> 0 ) {
2979 // PK avoids secondary lookups in InnoDB, shouldn't hurt other DBs
2980 return array( 'page_id' => $this->mArticleID
);
2982 return array( 'page_namespace' => $this->mNamespace
, 'page_title' => $this->mDbkeyform
);
2987 * Get the revision ID of the previous revision
2989 * @param $revId \type{\int} Revision ID. Get the revision that was before this one.
2990 * @param $flags \type{\int} GAID_FOR_UPDATE
2991 * @return \twotypes{\int,\bool} Old revision ID, or FALSE if none exists
2993 public function getPreviousRevisionID( $revId, $flags=0 ) {
2994 $db = ($flags & GAID_FOR_UPDATE
) ?
wfGetDB( DB_MASTER
) : wfGetDB( DB_SLAVE
);
2995 return $db->selectField( 'revision', 'rev_id',
2997 'rev_page' => $this->getArticleId($flags),
2998 'rev_id < ' . intval( $revId )
3001 array( 'ORDER BY' => 'rev_id DESC' )
3006 * Get the revision ID of the next revision
3008 * @param $revId \type{\int} Revision ID. Get the revision that was after this one.
3009 * @param $flags \type{\int} GAID_FOR_UPDATE
3010 * @return \twotypes{\int,\bool} Next revision ID, or FALSE if none exists
3012 public function getNextRevisionID( $revId, $flags=0 ) {
3013 $db = ($flags & GAID_FOR_UPDATE
) ?
wfGetDB( DB_MASTER
) : wfGetDB( DB_SLAVE
);
3014 return $db->selectField( 'revision', 'rev_id',
3016 'rev_page' => $this->getArticleId($flags),
3017 'rev_id > ' . intval( $revId )
3020 array( 'ORDER BY' => 'rev_id' )
3025 * Check if this is a new page
3029 public function isNewPage() {
3030 $dbr = wfGetDB( DB_SLAVE
);
3031 return (bool)$dbr->selectField( 'page', 'page_is_new', $this->pageCond(), __METHOD__
);
3035 * Get the oldest revision timestamp of this page
3037 * @return string, MW timestamp
3039 public function getEarliestRevTime() {
3040 $dbr = wfGetDB( DB_SLAVE
);
3041 if( $this->exists() ) {
3042 $min = $dbr->selectField( 'revision',
3043 'MIN(rev_timestamp)',
3044 array( 'rev_page' => $this->getArticleId() ),
3046 return wfTimestampOrNull( TS_MW
, $min );
3052 * Get the number of revisions between the given revision IDs.
3053 * Used for diffs and other things that really need it.
3055 * @param $old \type{\int} Revision ID.
3056 * @param $new \type{\int} Revision ID.
3057 * @return \type{\int} Number of revisions between these IDs.
3059 public function countRevisionsBetween( $old, $new ) {
3060 $dbr = wfGetDB( DB_SLAVE
);
3061 return $dbr->selectField( 'revision', 'count(*)',
3062 'rev_page = ' . intval( $this->getArticleId() ) .
3063 ' AND rev_id > ' . intval( $old ) .
3064 ' AND rev_id < ' . intval( $new ),
3066 array( 'USE INDEX' => 'PRIMARY' ) );
3070 * Compare with another title.
3072 * @param \type{Title} $title
3073 * @return \type{\bool} TRUE or FALSE
3075 public function equals( Title
$title ) {
3076 // Note: === is necessary for proper matching of number-like titles.
3077 return $this->getInterwiki() === $title->getInterwiki()
3078 && $this->getNamespace() == $title->getNamespace()
3079 && $this->getDBkey() === $title->getDBkey();
3083 * Callback for usort() to do title sorts by (namespace, title)
3085 static function compare( $a, $b ) {
3086 if( $a->getNamespace() == $b->getNamespace() ) {
3087 return strcmp( $a->getText(), $b->getText() );
3089 return $a->getNamespace() - $b->getNamespace();
3094 * Return a string representation of this title
3096 * @return \type{\string} String representation of this title
3098 public function __toString() {
3099 return $this->getPrefixedText();
3103 * Check if page exists. For historical reasons, this function simply
3104 * checks for the existence of the title in the page table, and will
3105 * thus return false for interwiki links, special pages and the like.
3106 * If you want to know if a title can be meaningfully viewed, you should
3107 * probably call the isKnown() method instead.
3109 * @return \type{\bool} TRUE or FALSE
3111 public function exists() {
3112 return $this->getArticleId() != 0;
3116 * Should links to this title be shown as potentially viewable (i.e. as
3117 * "bluelinks"), even if there's no record by this title in the page
3120 * This function is semi-deprecated for public use, as well as somewhat
3121 * misleadingly named. You probably just want to call isKnown(), which
3122 * calls this function internally.
3124 * (ISSUE: Most of these checks are cheap, but the file existence check
3125 * can potentially be quite expensive. Including it here fixes a lot of
3126 * existing code, but we might want to add an optional parameter to skip
3127 * it and any other expensive checks.)
3129 * @return \type{\bool} TRUE or FALSE
3131 public function isAlwaysKnown() {
3132 if( $this->mInterwiki
!= '' ) {
3133 return true; // any interwiki link might be viewable, for all we know
3135 switch( $this->mNamespace
) {
3138 return wfFindFile( $this ); // file exists, possibly in a foreign repo
3140 return SpecialPage
::exists( $this->getDBKey() ); // valid special page
3142 return $this->mDbkeyform
== ''; // selflink, possibly with fragment
3144 // If the page is form Mediawiki:message/lang, calling wfMsgWeirdKey causes
3145 // the full l10n of that language to be loaded. That takes much memory and
3146 // isn't needed. So we strip the language part away.
3147 // Also, extension messages which are not loaded, are shown as red, because
3148 // we don't call MessageCache::loadAllMessages.
3149 list( $basename, /* rest */ ) = explode( '/', $this->mDbkeyform
, 2 );
3150 return wfMsgWeirdKey( $basename ); // known system message
3157 * Does this title refer to a page that can (or might) be meaningfully
3158 * viewed? In particular, this function may be used to determine if
3159 * links to the title should be rendered as "bluelinks" (as opposed to
3160 * "redlinks" to non-existent pages).
3162 * @return \type{\bool} TRUE or FALSE
3164 public function isKnown() {
3165 return $this->exists() ||
$this->isAlwaysKnown();
3169 * Update page_touched timestamps and send squid purge messages for
3170 * pages linking to this title. May be sent to the job queue depending
3171 * on the number of links. Typically called on create and delete.
3173 public function touchLinks() {
3174 $u = new HTMLCacheUpdate( $this, 'pagelinks' );
3177 if ( $this->getNamespace() == NS_CATEGORY
) {
3178 $u = new HTMLCacheUpdate( $this, 'categorylinks' );
3184 * Get the last touched timestamp
3185 * @param Database $db, optional db
3186 * @return \type{\string} Last touched timestamp
3188 public function getTouched( $db = NULL ) {
3189 $db = isset($db) ?
$db : wfGetDB( DB_SLAVE
);
3190 $touched = $db->selectField( 'page', 'page_touched', $this->pageCond(), __METHOD__
);
3195 * Get the timestamp when this page was updated since the user last saw it.
3197 * @return mixed string/NULL
3199 public function getNotificationTimestamp( $user = NULL ) {
3200 global $wgUser, $wgShowUpdatedMarker;
3201 // Assume current user if none given
3202 if( !$user ) $user = $wgUser;
3203 // Check cache first
3204 $uid = $user->getId();
3205 if( isset($this->mNotificationTimestamp
[$uid]) ) {
3206 return $this->mNotificationTimestamp
[$uid];
3208 if( !$uid ||
!$wgShowUpdatedMarker ) {
3209 return $this->mNotificationTimestamp
[$uid] = false;
3211 // Don't cache too much!
3212 if( count($this->mNotificationTimestamp
) >= self
::CACHE_MAX
) {
3213 $this->mNotificationTimestamp
= array();
3215 $dbr = wfGetDB( DB_SLAVE
);
3216 $this->mNotificationTimestamp
[$uid] = $dbr->selectField( 'watchlist',
3217 'wl_notificationtimestamp',
3218 array( 'wl_namespace' => $this->getNamespace(),
3219 'wl_title' => $this->getDBkey(),
3220 'wl_user' => $user->getId()
3224 return $this->mNotificationTimestamp
[$uid];
3228 * Get the trackback URL for this page
3229 * @return \type{\string} Trackback URL
3231 public function trackbackURL() {
3232 global $wgScriptPath, $wgServer;
3234 return "$wgServer$wgScriptPath/trackback.php?article="
3235 . htmlspecialchars(urlencode($this->getPrefixedDBkey()));
3239 * Get the trackback RDF for this page
3240 * @return \type{\string} Trackback RDF
3242 public function trackbackRDF() {
3243 $url = htmlspecialchars($this->getFullURL());
3244 $title = htmlspecialchars($this->getText());
3245 $tburl = $this->trackbackURL();
3247 // Autodiscovery RDF is placed in comments so HTML validator
3248 // won't barf. This is a rather icky workaround, but seems
3249 // frequently used by this kind of RDF thingy.
3251 // Spec: http://www.sixapart.com/pronet/docs/trackback_spec
3253 <rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"
3254 xmlns:dc=\"http://purl.org/dc/elements/1.1/\"
3255 xmlns:trackback=\"http://madskills.com/public/xml/rss/module/trackback/\">
3258 dc:identifier=\"$url\"
3260 trackback:ping=\"$tburl\" />
3266 * Generate strings used for xml 'id' names in monobook tabs
3267 * @return \type{\string} XML 'id' name
3269 public function getNamespaceKey() {
3271 switch ($this->getNamespace()) {
3274 return 'nstab-main';
3277 return 'nstab-user';
3279 return 'nstab-media';
3281 return 'nstab-special';
3283 case NS_PROJECT_TALK
:
3284 return 'nstab-project';
3287 return 'nstab-image';
3289 case NS_MEDIAWIKI_TALK
:
3290 return 'nstab-mediawiki';
3292 case NS_TEMPLATE_TALK
:
3293 return 'nstab-template';
3296 return 'nstab-help';
3298 case NS_CATEGORY_TALK
:
3299 return 'nstab-category';
3301 return 'nstab-' . $wgContLang->lc( $this->getSubjectNsText() );
3306 * Returns true if this title resolves to the named special page
3307 * @param $name \type{\string} The special page name
3309 public function isSpecial( $name ) {
3310 if ( $this->getNamespace() == NS_SPECIAL
) {
3311 list( $thisName, /* $subpage */ ) = SpecialPage
::resolveAliasWithSubpage( $this->getDBkey() );
3312 if ( $name == $thisName ) {
3320 * If the Title refers to a special page alias which is not the local default,
3321 * @return \type{Title} A new Title which points to the local default. Otherwise, returns $this.
3323 public function fixSpecialName() {
3324 if ( $this->getNamespace() == NS_SPECIAL
) {
3325 $canonicalName = SpecialPage
::resolveAlias( $this->mDbkeyform
);
3326 if ( $canonicalName ) {
3327 $localName = SpecialPage
::getLocalNameFor( $canonicalName );
3328 if ( $localName != $this->mDbkeyform
) {
3329 return Title
::makeTitle( NS_SPECIAL
, $localName );
3337 * Is this Title in a namespace which contains content?
3338 * In other words, is this a content page, for the purposes of calculating
3341 * @return \type{\bool} TRUE or FALSE
3343 public function isContentPage() {
3344 return MWNamespace
::isContent( $this->getNamespace() );
3348 * Get all extant redirects to this Title
3350 * @param $ns \twotypes{\int,\null} Single namespace to consider;
3351 * NULL to consider all namespaces
3352 * @return \type{\arrayof{Title}} Redirects to this title
3354 public function getRedirectsHere( $ns = null ) {
3357 $dbr = wfGetDB( DB_SLAVE
);
3359 'rd_namespace' => $this->getNamespace(),
3360 'rd_title' => $this->getDBkey(),
3363 if ( !is_null($ns) ) $where['page_namespace'] = $ns;
3365 $res = $dbr->select(
3366 array( 'redirect', 'page' ),
3367 array( 'page_namespace', 'page_title' ),
3373 foreach( $res as $row ) {
3374 $redirs[] = self
::newFromRow( $row );