8 * @todo: determine if it is really necessary to load this. Appears to be left over from pre-autoloader versions, and
9 * is only really needed to provide access to constant UTF8_REPLACEMENT, which actually resides in UtfNormalDefines.php
10 * and is loaded by UtfNormalUtil.php, which is loaded by UtfNormal.php.
12 if ( !class_exists( 'UtfNormal' ) ) {
13 require_once( dirname( __FILE__
) . '/normal/UtfNormal.php' );
17 * @deprecated This used to be a define, but was moved to
18 * Title::GAID_FOR_UPDATE in 1.17. This will probably be removed in 1.18
20 define( 'GAID_FOR_UPDATE', Title
::GAID_FOR_UPDATE
);
23 * Represents a title within MediaWiki.
24 * Optionally may contain an interwiki designation or namespace.
25 * @note This class can fetch various kinds of data from the database;
26 * however, it does so inefficiently.
28 * @internal documentation reviewed 15 Mar 2010
31 /** @name Static cache variables */
33 static private $titleCache = array();
37 * Title::newFromText maintains a cache to avoid expensive re-normalization of
38 * commonly used titles. On a batch operation this can become a memory leak
39 * if not bounded. After hitting this many titles reset the cache.
41 const CACHE_MAX
= 1000;
44 * Used to be GAID_FOR_UPDATE define. Used with getArticleId() and friends
45 * to use the master DB
47 const GAID_FOR_UPDATE
= 1;
51 * @name Private member variables
52 * Please use the accessor functions instead.
57 var $mTextform = ''; // /< Text form (spaces not underscores) of the main part
58 var $mUrlform = ''; // /< URL-encoded form of the main part
59 var $mDbkeyform = ''; // /< Main part with underscores
60 var $mUserCaseDBKey; // /< DB key with the initial letter in the case specified by the user
61 var $mNamespace = NS_MAIN
; // /< Namespace index, i.e. one of the NS_xxxx constants
62 var $mInterwiki = ''; // /< Interwiki prefix (or null string)
63 var $mFragment; // /< Title fragment (i.e. the bit after the #)
64 var $mArticleID = -1; // /< Article ID, fetched from the link cache on demand
65 var $mLatestID = false; // /< ID of most recent revision
66 var $mRestrictions = array(); // /< Array of groups allowed to edit this article
67 var $mOldRestrictions = false;
68 var $mCascadeRestriction; ///< Cascade restrictions on this page to included templates and images?
69 var $mCascadingRestrictions; // Caching the results of getCascadeProtectionSources
70 var $mRestrictionsExpiry = array(); ///< When do the restrictions on this page expire?
71 var $mHasCascadingRestrictions; ///< Are cascading restrictions in effect on this page?
72 var $mCascadeSources; ///< Where are the cascading restrictions coming from on this page?
73 var $mRestrictionsLoaded = false; ///< Boolean for initialisation on demand
74 var $mPrefixedText; ///< Text form including namespace/interwiki, initialised on demand
75 var $mTitleProtection; ///< Cached value of getTitleProtection
76 # Don't change the following default, NS_MAIN is hardcoded in several
77 # places. See bug 696.
78 var $mDefaultNamespace = NS_MAIN
; // /< Namespace index when there is no namespace
79 # Zero except in {{transclusion}} tags
80 var $mWatched = null; // /< Is $wgUser watching this page? null if unfilled, accessed through userIsWatching()
81 var $mLength = -1; // /< The page length, 0 for special pages
82 var $mRedirect = null; // /< Is the article at this title a redirect?
83 var $mNotificationTimestamp = array(); // /< Associative array of user ID -> timestamp/false
84 var $mBacklinkCache = null; // /< Cache of links to this title
92 /* private */ function __construct() { }
95 * Create a new Title from a prefixed DB key
97 * @param $key \type{\string} The database key, which has underscores
98 * instead of spaces, possibly including namespace and
100 * @return \type{Title} the new object, or NULL on an error
102 public static function newFromDBkey( $key ) {
104 $t->mDbkeyform
= $key;
105 if ( $t->secureAndSplit() ) {
113 * Create a new Title from text, such as what one would find in a link. De-
114 * codes any HTML entities in the text.
116 * @param $text string The link text; spaces, prefixes, and an
117 * initial ':' indicating the main namespace are accepted.
118 * @param $defaultNamespace int The namespace to use if none is speci-
119 * fied by a prefix. If you want to force a specific namespace even if
120 * $text might begin with a namespace prefix, use makeTitle() or
122 * @return Title The new object, or null on an error.
124 public static function newFromText( $text, $defaultNamespace = NS_MAIN
) {
125 if ( is_object( $text ) ) {
126 throw new MWException( 'Title::newFromText given an object' );
130 * Wiki pages often contain multiple links to the same page.
131 * Title normalization and parsing can become expensive on
132 * pages with many links, so we can save a little time by
135 * In theory these are value objects and won't get changed...
137 if ( $defaultNamespace == NS_MAIN
&& isset( Title
::$titleCache[$text] ) ) {
138 return Title
::$titleCache[$text];
142 * Convert things like é ā or 〗 into normalized (bug 14952) text
144 $filteredText = Sanitizer
::decodeCharReferencesAndNormalize( $text );
147 $t->mDbkeyform
= str_replace( ' ', '_', $filteredText );
148 $t->mDefaultNamespace
= $defaultNamespace;
150 static $cachedcount = 0 ;
151 if ( $t->secureAndSplit() ) {
152 if ( $defaultNamespace == NS_MAIN
) {
153 if ( $cachedcount >= self
::CACHE_MAX
) {
154 # Avoid memory leaks on mass operations...
155 Title
::$titleCache = array();
159 Title
::$titleCache[$text] =& $t;
169 * THIS IS NOT THE FUNCTION YOU WANT. Use Title::newFromText().
171 * Example of wrong and broken code:
172 * $title = Title::newFromURL( $wgRequest->getVal( 'title' ) );
174 * Example of right code:
175 * $title = Title::newFromText( $wgRequest->getVal( 'title' ) );
177 * Create a new Title from URL-encoded text. Ensures that
178 * the given title's length does not exceed the maximum.
180 * @param $url \type{\string} the title, as might be taken from a URL
181 * @return \type{Title} the new object, or NULL on an error
183 public static function newFromURL( $url ) {
184 global $wgLegalTitleChars;
187 # For compatibility with old buggy URLs. "+" is usually not valid in titles,
188 # but some URLs used it as a space replacement and they still come
189 # from some external search tools.
190 if ( strpos( $wgLegalTitleChars, '+' ) === false ) {
191 $url = str_replace( '+', ' ', $url );
194 $t->mDbkeyform
= str_replace( ' ', '_', $url );
195 if ( $t->secureAndSplit() ) {
203 * Create a new Title from an article ID
205 * @param $id \type{\int} the page_id corresponding to the Title to create
206 * @param $flags \type{\int} use Title::GAID_FOR_UPDATE to use master
207 * @return \type{Title} the new object, or NULL on an error
209 public static function newFromID( $id, $flags = 0 ) {
210 $db = ( $flags & self
::GAID_FOR_UPDATE
) ?
wfGetDB( DB_MASTER
) : wfGetDB( DB_SLAVE
);
211 $row = $db->selectRow( 'page', '*', array( 'page_id' => $id ), __METHOD__
);
212 if ( $row !== false ) {
213 $title = Title
::newFromRow( $row );
221 * Make an array of titles from an array of IDs
223 * @param $ids \type{\arrayof{\int}} Array of IDs
224 * @return \type{\arrayof{Title}} Array of Titles
226 public static function newFromIDs( $ids ) {
227 if ( !count( $ids ) ) {
230 $dbr = wfGetDB( DB_SLAVE
);
235 'page_namespace', 'page_title', 'page_id',
236 'page_len', 'page_is_redirect', 'page_latest',
238 array( 'page_id' => $ids ),
243 foreach ( $res as $row ) {
244 $titles[] = Title
::newFromRow( $row );
250 * Make a Title object from a DB row
252 * @param $row \type{Row} (needs at least page_title,page_namespace)
253 * @return \type{Title} corresponding Title
255 public static function newFromRow( $row ) {
256 $t = self
::makeTitle( $row->page_namespace
, $row->page_title
);
258 $t->mArticleID
= isset( $row->page_id
) ?
intval( $row->page_id
) : -1;
259 $t->mLength
= isset( $row->page_len
) ?
intval( $row->page_len
) : -1;
260 $t->mRedirect
= isset( $row->page_is_redirect
) ?
(bool)$row->page_is_redirect
: null;
261 $t->mLatestID
= isset( $row->page_latest
) ?
intval( $row->page_latest
) : false;
267 * Create a new Title from a namespace index and a DB key.
268 * It's assumed that $ns and $title are *valid*, for instance when
269 * they came directly from the database or a special page name.
270 * For convenience, spaces are converted to underscores so that
271 * eg user_text fields can be used directly.
273 * @param $ns \type{\int} the namespace of the article
274 * @param $title \type{\string} the unprefixed database key form
275 * @param $fragment \type{\string} The link fragment (after the "#")
276 * @param $interwiki \type{\string} The interwiki prefix
277 * @return \type{Title} the new object
279 public static function &makeTitle( $ns, $title, $fragment = '', $interwiki = '' ) {
281 $t->mInterwiki
= $interwiki;
282 $t->mFragment
= $fragment;
283 $t->mNamespace
= $ns = intval( $ns );
284 $t->mDbkeyform
= str_replace( ' ', '_', $title );
285 $t->mArticleID
= ( $ns >= 0 ) ?
-1 : 0;
286 $t->mUrlform
= wfUrlencode( $t->mDbkeyform
);
287 $t->mTextform
= str_replace( '_', ' ', $title );
292 * Create a new Title from a namespace index and a DB key.
293 * The parameters will be checked for validity, which is a bit slower
294 * than makeTitle() but safer for user-provided data.
296 * @param $ns \type{\int} the namespace of the article
297 * @param $title \type{\string} the database key form
298 * @param $fragment \type{\string} The link fragment (after the "#")
299 * @param $interwiki \type{\string} The interwiki prefix
300 * @return \type{Title} the new object, or NULL on an error
302 public static function makeTitleSafe( $ns, $title, $fragment = '', $interwiki = '' ) {
304 $t->mDbkeyform
= Title
::makeName( $ns, $title, $fragment, $interwiki );
305 if ( $t->secureAndSplit() ) {
313 * Create a new Title for the Main Page
315 * @return \type{Title} the new object
317 public static function newMainPage() {
318 $title = Title
::newFromText( wfMsgForContent( 'mainpage' ) );
319 // Don't give fatal errors if the message is broken
321 $title = Title
::newFromText( 'Main Page' );
327 * Extract a redirect destination from a string and return the
328 * Title, or null if the text doesn't contain a valid redirect
329 * This will only return the very next target, useful for
330 * the redirect table and other checks that don't need full recursion
332 * @param $text \type{\string} Text with possible redirect
333 * @return \type{Title} The corresponding Title
335 public static function newFromRedirect( $text ) {
336 return self
::newFromRedirectInternal( $text );
340 * Extract a redirect destination from a string and return the
341 * Title, or null if the text doesn't contain a valid redirect
342 * This will recurse down $wgMaxRedirects times or until a non-redirect target is hit
343 * in order to provide (hopefully) the Title of the final destination instead of another redirect
345 * @param $text \type{\string} Text with possible redirect
346 * @return \type{Title} The corresponding Title
348 public static function newFromRedirectRecurse( $text ) {
349 $titles = self
::newFromRedirectArray( $text );
350 return $titles ?
array_pop( $titles ) : null;
354 * Extract a redirect destination from a string and return an
355 * array of Titles, or null if the text doesn't contain a valid redirect
356 * The last element in the array is the final destination after all redirects
357 * have been resolved (up to $wgMaxRedirects times)
359 * @param $text \type{\string} Text with possible redirect
360 * @return \type{\array} Array of Titles, with the destination last
362 public static function newFromRedirectArray( $text ) {
363 global $wgMaxRedirects;
364 // are redirects disabled?
365 if ( $wgMaxRedirects < 1 ) {
368 $title = self
::newFromRedirectInternal( $text );
369 if ( is_null( $title ) ) {
372 // recursive check to follow double redirects
373 $recurse = $wgMaxRedirects;
374 $titles = array( $title );
375 while ( --$recurse > 0 ) {
376 if ( $title->isRedirect() ) {
377 $article = new Article( $title, 0 );
378 $newtitle = $article->getRedirectTarget();
382 // Redirects to some special pages are not permitted
383 if ( $newtitle instanceOf Title
&& $newtitle->isValidRedirectTarget() ) {
384 // the new title passes the checks, so make that our current title so that further recursion can be checked
386 $titles[] = $newtitle;
395 * Really extract the redirect destination
396 * Do not call this function directly, use one of the newFromRedirect* functions above
398 * @param $text \type{\string} Text with possible redirect
399 * @return \type{Title} The corresponding Title
401 protected static function newFromRedirectInternal( $text ) {
402 $redir = MagicWord
::get( 'redirect' );
403 $text = trim( $text );
404 if ( $redir->matchStartAndRemove( $text ) ) {
405 // Extract the first link and see if it's usable
406 // Ensure that it really does come directly after #REDIRECT
407 // Some older redirects included a colon, so don't freak about that!
409 if ( preg_match( '!^\s*:?\s*\[{2}(.*?)(?:\|.*?)?\]{2}!', $text, $m ) ) {
410 // Strip preceding colon used to "escape" categories, etc.
411 // and URL-decode links
412 if ( strpos( $m[1], '%' ) !== false ) {
413 // Match behavior of inline link parsing here;
414 // don't interpret + as " " most of the time!
415 // It might be safe to just use rawurldecode instead, though.
416 $m[1] = urldecode( ltrim( $m[1], ':' ) );
418 $title = Title
::newFromText( $m[1] );
419 // If the title is a redirect to bad special pages or is invalid, return null
420 if ( !$title instanceof Title ||
!$title->isValidRedirectTarget() ) {
429 # ----------------------------------------------------------------------------
431 # ----------------------------------------------------------------------------
434 * Get the prefixed DB key associated with an ID
436 * @param $id \type{\int} the page_id of the article
437 * @return \type{Title} an object representing the article, or NULL
438 * if no such article was found
440 public static function nameOf( $id ) {
441 $dbr = wfGetDB( DB_SLAVE
);
443 $s = $dbr->selectRow(
445 array( 'page_namespace', 'page_title' ),
446 array( 'page_id' => $id ),
449 if ( $s === false ) {
453 $n = self
::makeName( $s->page_namespace
, $s->page_title
);
458 * Get a regex character class describing the legal characters in a link
460 * @return \type{\string} the list of characters, not delimited
462 public static function legalChars() {
463 global $wgLegalTitleChars;
464 return $wgLegalTitleChars;
468 * Get a string representation of a title suitable for
469 * including in a search index
471 * @param $ns \type{\int} a namespace index
472 * @param $title \type{\string} text-form main part
473 * @return \type{\string} a stripped-down title string ready for the
476 public static function indexTitle( $ns, $title ) {
479 $lc = SearchEngine
::legalSearchChars() . '&#;';
480 $t = $wgContLang->normalizeForSearch( $title );
481 $t = preg_replace( "/[^{$lc}]+/", ' ', $t );
482 $t = $wgContLang->lc( $t );
485 $t = preg_replace( "/([{$lc}]+)'s( |$)/", "\\1 \\1's ", $t );
486 $t = preg_replace( "/([{$lc}]+)s'( |$)/", "\\1s ", $t );
488 $t = preg_replace( "/\\s+/", ' ', $t );
490 if ( $ns == NS_FILE
) {
491 $t = preg_replace( "/ (png|gif|jpg|jpeg|ogg)$/", "", $t );
497 * Make a prefixed DB key from a DB key and a namespace index
499 * @param $ns \type{\int} numerical representation of the namespace
500 * @param $title \type{\string} the DB key form the title
501 * @param $fragment \type{\string} The link fragment (after the "#")
502 * @param $interwiki \type{\string} The interwiki prefix
503 * @return \type{\string} the prefixed form of the title
505 public static function makeName( $ns, $title, $fragment = '', $interwiki = '' ) {
508 $namespace = $wgContLang->getNsText( $ns );
509 $name = $namespace == '' ?
$title : "$namespace:$title";
510 if ( strval( $interwiki ) != '' ) {
511 $name = "$interwiki:$name";
513 if ( strval( $fragment ) != '' ) {
514 $name .= '#' . $fragment;
520 * Determine whether the object refers to a page within
523 * @return \type{\bool} TRUE if this is an in-project interwiki link
524 * or a wikilink, FALSE otherwise
526 public function isLocal() {
527 if ( $this->mInterwiki
!= '' ) {
528 return Interwiki
::fetch( $this->mInterwiki
)->isLocal();
535 * Determine whether the object refers to a page within
536 * this project and is transcludable.
538 * @return \type{\bool} TRUE if this is transcludable
540 public function isTrans() {
541 if ( $this->mInterwiki
== '' ) {
545 return Interwiki
::fetch( $this->mInterwiki
)->isTranscludable();
549 * Returns the DB name of the distant wiki
550 * which owns the object.
552 * @return \type{\string} the DB name
554 public function getTransWikiID() {
555 if ( $this->mInterwiki
== '' ) {
559 return Interwiki
::fetch( $this->mInterwiki
)->getWikiID();
563 * Escape a text fragment, say from a link, for a URL
565 * @param $fragment string containing a URL or link fragment (after the "#")
566 * @return String: escaped string
568 static function escapeFragmentForURL( $fragment ) {
569 # Note that we don't urlencode the fragment. urlencoded Unicode
570 # fragments appear not to work in IE (at least up to 7) or in at least
571 # one version of Opera 9.x. The W3C validator, for one, doesn't seem
572 # to care if they aren't encoded.
573 return Sanitizer
::escapeId( $fragment, 'noninitial' );
576 # ----------------------------------------------------------------------------
578 # ----------------------------------------------------------------------------
580 /** Simple accessors */
582 * Get the text form (spaces not underscores) of the main part
584 * @return \type{\string} Main part of the title
586 public function getText() { return $this->mTextform
; }
589 * Get the URL-encoded form of the main part
591 * @return \type{\string} Main part of the title, URL-encoded
593 public function getPartialURL() { return $this->mUrlform
; }
596 * Get the main part with underscores
598 * @return \type{\string} Main part of the title, with underscores
600 public function getDBkey() { return $this->mDbkeyform
; }
603 * Get the namespace index, i.e.\ one of the NS_xxxx constants.
605 * @return \type{\int} Namespace index
607 public function getNamespace() { return $this->mNamespace
; }
610 * Get the namespace text
612 * @return \type{\string} Namespace text
614 public function getNsText() {
617 if ( $this->mInterwiki
!= '' ) {
618 // This probably shouldn't even happen. ohh man, oh yuck.
619 // But for interwiki transclusion it sometimes does.
620 // Shit. Shit shit shit.
622 // Use the canonical namespaces if possible to try to
623 // resolve a foreign namespace.
624 if ( MWNamespace
::exists( $this->mNamespace
) ) {
625 return MWNamespace
::getCanonicalName( $this->mNamespace
);
628 return $wgContLang->getNsText( $this->mNamespace
);
632 * Get the DB key with the initial letter case as specified by the user
634 * @return \type{\string} DB key
636 function getUserCaseDBKey() {
637 return $this->mUserCaseDBKey
;
641 * Get the namespace text of the subject (rather than talk) page
643 * @return \type{\string} Namespace text
645 public function getSubjectNsText() {
647 return $wgContLang->getNsText( MWNamespace
::getSubject( $this->mNamespace
) );
651 * Get the namespace text of the talk page
653 * @return \type{\string} Namespace text
655 public function getTalkNsText() {
657 return( $wgContLang->getNsText( MWNamespace
::getTalk( $this->mNamespace
) ) );
661 * Could this title have a corresponding talk page?
663 * @return \type{\bool} TRUE or FALSE
665 public function canTalk() {
666 return( MWNamespace
::canTalk( $this->mNamespace
) );
670 * Get the interwiki prefix (or null string)
672 * @return \type{\string} Interwiki prefix
674 public function getInterwiki() { return $this->mInterwiki
; }
677 * Get the Title fragment (i.e.\ the bit after the #) in text form
679 * @return \type{\string} Title fragment
681 public function getFragment() { return $this->mFragment
; }
684 * Get the fragment in URL form, including the "#" character if there is one
685 * @return \type{\string} Fragment in URL form
687 public function getFragmentForURL() {
688 if ( $this->mFragment
== '' ) {
691 return '#' . Title
::escapeFragmentForURL( $this->mFragment
);
696 * Get the default namespace index, for when there is no namespace
698 * @return \type{\int} Default namespace index
700 public function getDefaultNamespace() { return $this->mDefaultNamespace
; }
703 * Get title for search index
705 * @return \type{\string} a stripped-down title string ready for the
708 public function getIndexTitle() {
709 return Title
::indexTitle( $this->mNamespace
, $this->mTextform
);
713 * Get the prefixed database key form
715 * @return \type{\string} the prefixed title, with underscores and
716 * any interwiki and namespace prefixes
718 public function getPrefixedDBkey() {
719 $s = $this->prefix( $this->mDbkeyform
);
720 $s = str_replace( ' ', '_', $s );
725 * Get the prefixed title with spaces.
726 * This is the form usually used for display
728 * @return \type{\string} the prefixed title, with spaces
730 public function getPrefixedText() {
731 if ( empty( $this->mPrefixedText
) ) { // FIXME: bad usage of empty() ?
732 $s = $this->prefix( $this->mTextform
);
733 $s = str_replace( '_', ' ', $s );
734 $this->mPrefixedText
= $s;
736 return $this->mPrefixedText
;
740 * Get the prefixed title with spaces, plus any fragment
741 * (part beginning with '#')
743 * @return \type{\string} the prefixed title, with spaces and
744 * the fragment, including '#'
746 public function getFullText() {
747 $text = $this->getPrefixedText();
748 if ( $this->mFragment
!= '' ) {
749 $text .= '#' . $this->mFragment
;
755 * Get the base name, i.e. the leftmost parts before the /
757 * @return \type{\string} Base name
759 public function getBaseText() {
760 if ( !MWNamespace
::hasSubpages( $this->mNamespace
) ) {
761 return $this->getText();
764 $parts = explode( '/', $this->getText() );
765 # Don't discard the real title if there's no subpage involved
766 if ( count( $parts ) > 1 ) {
767 unset( $parts[count( $parts ) - 1] );
769 return implode( '/', $parts );
773 * Get the lowest-level subpage name, i.e. the rightmost part after /
775 * @return \type{\string} Subpage name
777 public function getSubpageText() {
778 if ( !MWNamespace
::hasSubpages( $this->mNamespace
) ) {
779 return( $this->mTextform
);
781 $parts = explode( '/', $this->mTextform
);
782 return( $parts[count( $parts ) - 1] );
786 * Get a URL-encoded form of the subpage text
788 * @return \type{\string} URL-encoded subpage name
790 public function getSubpageUrlForm() {
791 $text = $this->getSubpageText();
792 $text = wfUrlencode( str_replace( ' ', '_', $text ) );
797 * Get a URL-encoded title (not an actual URL) including interwiki
799 * @return \type{\string} the URL-encoded form
801 public function getPrefixedURL() {
802 $s = $this->prefix( $this->mDbkeyform
);
803 $s = wfUrlencode( str_replace( ' ', '_', $s ) );
808 * Get a real URL referring to this title, with interwiki link and
811 * @param $query \twotypes{\string,\array} an optional query string, not used for interwiki
812 * links. Can be specified as an associative array as well, e.g.,
813 * array( 'action' => 'edit' ) (keys and values will be URL-escaped).
814 * @param $variant \type{\string} language variant of url (for sr, zh..)
815 * @return \type{\string} the URL
817 public function getFullURL( $query = '', $variant = false ) {
818 global $wgServer, $wgRequest;
820 if ( is_array( $query ) ) {
821 $query = wfArrayToCGI( $query );
824 $interwiki = Interwiki
::fetch( $this->mInterwiki
);
826 $url = $this->getLocalURL( $query, $variant );
828 // Ugly quick hack to avoid duplicate prefixes (bug 4571 etc)
829 // Correct fix would be to move the prepending elsewhere.
830 if ( $wgRequest->getVal( 'action' ) != 'render' ) {
831 $url = $wgServer . $url;
834 $baseUrl = $interwiki->getURL();
836 $namespace = wfUrlencode( $this->getNsText() );
837 if ( $namespace != '' ) {
838 # Can this actually happen? Interwikis shouldn't be parsed.
839 # Yes! It can in interwiki transclusion. But... it probably shouldn't.
842 $url = str_replace( '$1', $namespace . $this->mUrlform
, $baseUrl );
843 $url = wfAppendQuery( $url, $query );
846 # Finally, add the fragment.
847 $url .= $this->getFragmentForURL();
849 wfRunHooks( 'GetFullURL', array( &$this, &$url, $query ) );
854 * Get a URL with no fragment or server name. If this page is generated
855 * with action=render, $wgServer is prepended.
857 * @param $query Mixed: an optional query string; if not specified,
858 * $wgArticlePath will be used. Can be specified as an associative array
859 * as well, e.g., array( 'action' => 'edit' ) (keys and values will be
861 * @param $variant \type{\string} language variant of url (for sr, zh..)
862 * @return \type{\string} the URL
864 public function getLocalURL( $query = '', $variant = false ) {
865 global $wgArticlePath, $wgScript, $wgServer, $wgRequest;
866 global $wgVariantArticlePath, $wgContLang, $wgUser;
868 if ( is_array( $query ) ) {
869 $query = wfArrayToCGI( $query );
872 if ( $this->isExternal() ) {
873 $url = $this->getFullURL();
875 // This is currently only used for edit section links in the
876 // context of interwiki transclusion. In theory we should
877 // append the query to the end of any existing query string,
878 // but interwiki transclusion is already broken in that case.
882 $dbkey = wfUrlencode( $this->getPrefixedDBkey() );
883 if ( $query == '' ) {
884 if ( $variant != false && $wgContLang->hasVariants() ) {
885 if ( !$wgVariantArticlePath ) {
886 $variantArticlePath = "$wgScript?title=$1&variant=$2"; // default
888 $variantArticlePath = $wgVariantArticlePath;
890 $url = str_replace( '$2', urlencode( $variant ), $variantArticlePath );
891 $url = str_replace( '$1', $dbkey, $url );
893 $url = str_replace( '$1', $dbkey, $wgArticlePath );
896 global $wgActionPaths;
899 if ( !empty( $wgActionPaths ) &&
900 preg_match( '/^(.*&|)action=([^&]*)(&(.*)|)$/', $query, $matches ) )
902 $action = urldecode( $matches[2] );
903 if ( isset( $wgActionPaths[$action] ) ) {
904 $query = $matches[1];
905 if ( isset( $matches[4] ) ) {
906 $query .= $matches[4];
908 $url = str_replace( '$1', $dbkey, $wgActionPaths[$action] );
909 if ( $query != '' ) {
910 $url = wfAppendQuery( $url, $query );
914 if ( $url === false ) {
915 if ( $query == '-' ) {
918 $url = "{$wgScript}?title={$dbkey}&{$query}";
922 // FIXME: this causes breakage in various places when we
923 // actually expected a local URL and end up with dupe prefixes.
924 if ( $wgRequest->getVal( 'action' ) == 'render' ) {
925 $url = $wgServer . $url;
928 wfRunHooks( 'GetLocalURL', array( &$this, &$url, $query ) );
933 * Get a URL that's the simplest URL that will be valid to link, locally,
934 * to the current Title. It includes the fragment, but does not include
935 * the server unless action=render is used (or the link is external). If
936 * there's a fragment but the prefixed text is empty, we just return a link
939 * The result obviously should not be URL-escaped, but does need to be
940 * HTML-escaped if it's being output in HTML.
942 * @param $query \type{\arrayof{\string}} An associative array of key => value pairs for the
943 * query string. Keys and values will be escaped.
944 * @param $variant \type{\string} Language variant of URL (for sr, zh..). Ignored
945 * for external links. Default is "false" (same variant as current page,
946 * for anonymous users).
947 * @return \type{\string} the URL
949 public function getLinkUrl( $query = array(), $variant = false ) {
950 wfProfileIn( __METHOD__
);
951 if ( $this->isExternal() ) {
952 $ret = $this->getFullURL( $query );
953 } elseif ( $this->getPrefixedText() === '' && $this->getFragment() !== '' ) {
954 $ret = $this->getFragmentForURL();
956 $ret = $this->getLocalURL( $query, $variant ) . $this->getFragmentForURL();
958 wfProfileOut( __METHOD__
);
963 * Get an HTML-escaped version of the URL form, suitable for
964 * using in a link, without a server name or fragment
966 * @param $query \type{\string} an optional query string
967 * @return \type{\string} the URL
969 public function escapeLocalURL( $query = '' ) {
970 return htmlspecialchars( $this->getLocalURL( $query ) );
974 * Get an HTML-escaped version of the URL form, suitable for
975 * using in a link, including the server name and fragment
977 * @param $query \type{\string} an optional query string
978 * @return \type{\string} the URL
980 public function escapeFullURL( $query = '' ) {
981 return htmlspecialchars( $this->getFullURL( $query ) );
985 * Get the URL form for an internal link.
986 * - Used in various Squid-related code, in case we have a different
987 * internal hostname for the server from the exposed one.
989 * @param $query \type{\string} an optional query string
990 * @param $variant \type{\string} language variant of url (for sr, zh..)
991 * @return \type{\string} the URL
993 public function getInternalURL( $query = '', $variant = false ) {
994 global $wgInternalServer;
995 $url = $wgInternalServer . $this->getLocalURL( $query, $variant );
996 wfRunHooks( 'GetInternalURL', array( &$this, &$url, $query ) );
1001 * Get the edit URL for this Title
1003 * @return \type{\string} the URL, or a null string if this is an
1006 public function getEditURL() {
1007 if ( $this->mInterwiki
!= '' ) {
1010 $s = $this->getLocalURL( 'action=edit' );
1016 * Get the HTML-escaped displayable text form.
1017 * Used for the title field in <a> tags.
1019 * @return \type{\string} the text, including any prefixes
1021 public function getEscapedText() {
1022 return htmlspecialchars( $this->getPrefixedText() );
1026 * Is this Title interwiki?
1028 * @return \type{\bool}
1030 public function isExternal() {
1031 return ( $this->mInterwiki
!= '' );
1035 * Is this page "semi-protected" - the *only* protection is autoconfirm?
1037 * @param $action \type{\string} Action to check (default: edit)
1038 * @return \type{\bool}
1040 public function isSemiProtected( $action = 'edit' ) {
1041 if ( $this->exists() ) {
1042 $restrictions = $this->getRestrictions( $action );
1043 if ( count( $restrictions ) > 0 ) {
1044 foreach ( $restrictions as $restriction ) {
1045 if ( strtolower( $restriction ) != 'autoconfirmed' ) {
1055 # If it doesn't exist, it can't be protected
1061 * Does the title correspond to a protected article?
1063 * @param $action \type{\string} the action the page is protected from,
1064 * by default checks all actions.
1065 * @return \type{\bool}
1067 public function isProtected( $action = '' ) {
1068 global $wgRestrictionLevels;
1070 $restrictionTypes = $this->getRestrictionTypes();
1072 # Special pages have inherent protection
1073 if( $this->getNamespace() == NS_SPECIAL
) {
1077 # Check regular protection levels
1078 foreach ( $restrictionTypes as $type ) {
1079 if ( $action == $type ||
$action == '' ) {
1080 $r = $this->getRestrictions( $type );
1081 foreach ( $wgRestrictionLevels as $level ) {
1082 if ( in_array( $level, $r ) && $level != '' ) {
1093 * Is this a conversion table for the LanguageConverter?
1095 * @return \type{\bool}
1097 public function isConversionTable() {
1099 $this->getNamespace() == NS_MEDIAWIKI
&&
1100 strpos( $this->getText(), 'Conversiontable' ) !== false
1110 * Is $wgUser watching this page?
1112 * @return \type{\bool}
1114 public function userIsWatching() {
1117 if ( is_null( $this->mWatched
) ) {
1118 if ( NS_SPECIAL
== $this->mNamespace ||
!$wgUser->isLoggedIn() ) {
1119 $this->mWatched
= false;
1121 $this->mWatched
= $wgUser->isWatched( $this );
1124 return $this->mWatched
;
1128 * Can $wgUser perform $action on this page?
1129 * This skips potentially expensive cascading permission checks
1130 * as well as avoids expensive error formatting
1132 * Suitable for use for nonessential UI controls in common cases, but
1133 * _not_ for functional access control.
1135 * May provide false positives, but should never provide a false negative.
1137 * @param $action \type{\string} action that permission needs to be checked for
1138 * @return \type{\bool}
1140 public function quickUserCan( $action ) {
1141 return $this->userCan( $action, false );
1145 * Determines if $wgUser is unable to edit this page because it has been protected
1146 * by $wgNamespaceProtection.
1148 * @return \type{\bool}
1150 public function isNamespaceProtected() {
1151 global $wgNamespaceProtection, $wgUser;
1152 if ( isset( $wgNamespaceProtection[$this->mNamespace
] ) ) {
1153 foreach ( (array)$wgNamespaceProtection[$this->mNamespace
] as $right ) {
1154 if ( $right != '' && !$wgUser->isAllowed( $right ) ) {
1163 * Can $wgUser perform $action on this page?
1165 * @param $action \type{\string} action that permission needs to be checked for
1166 * @param $doExpensiveQueries \type{\bool} Set this to false to avoid doing unnecessary queries.
1167 * @return \type{\bool}
1169 public function userCan( $action, $doExpensiveQueries = true ) {
1171 return ( $this->getUserPermissionsErrorsInternal( $action, $wgUser, $doExpensiveQueries, true ) === array() );
1175 * Can $user perform $action on this page?
1177 * FIXME: This *does not* check throttles (User::pingLimiter()).
1179 * @param $action \type{\string}action that permission needs to be checked for
1180 * @param $user \type{User} user to check
1181 * @param $doExpensiveQueries \type{\bool} Set this to false to avoid doing unnecessary queries.
1182 * @param $ignoreErrors \type{\arrayof{\string}} Set this to a list of message keys whose corresponding errors may be ignored.
1183 * @return \type{\array} Array of arrays of the arguments to wfMsg to explain permissions problems.
1185 public function getUserPermissionsErrors( $action, $user, $doExpensiveQueries = true, $ignoreErrors = array() ) {
1186 $errors = $this->getUserPermissionsErrorsInternal( $action, $user, $doExpensiveQueries );
1188 // Remove the errors being ignored.
1189 foreach ( $errors as $index => $error ) {
1190 $error_key = is_array( $error ) ?
$error[0] : $error;
1192 if ( in_array( $error_key, $ignoreErrors ) ) {
1193 unset( $errors[$index] );
1201 * Permissions checks that fail most often, and which are easiest to test.
1203 * @param $action String the action to check
1204 * @param $user User user to check
1205 * @param $errors Array list of current errors
1206 * @param $doExpensiveQueries Boolean whether or not to perform expensive queries
1207 * @param $short Boolean short circuit on first error
1209 * @return Array list of errors
1211 private function checkQuickPermissions( $action, $user, $errors, $doExpensiveQueries, $short ) {
1212 if ( $action == 'create' ) {
1213 if ( ( $this->isTalkPage() && !$user->isAllowed( 'createtalk' ) ) ||
1214 ( !$this->isTalkPage() && !$user->isAllowed( 'createpage' ) ) ) {
1215 $errors[] = $user->isAnon() ?
array( 'nocreatetext' ) : array( 'nocreate-loggedin' );
1217 } elseif ( $action == 'move' ) {
1218 if ( !$user->isAllowed( 'move-rootuserpages' )
1219 && $this->mNamespace
== NS_USER
&& !$this->isSubpage() ) {
1220 // Show user page-specific message only if the user can move other pages
1221 $errors[] = array( 'cant-move-user-page' );
1224 // Check if user is allowed to move files if it's a file
1225 if ( $this->mNamespace
== NS_FILE
&& !$user->isAllowed( 'movefile' ) ) {
1226 $errors[] = array( 'movenotallowedfile' );
1229 if ( !$user->isAllowed( 'move' ) ) {
1230 // User can't move anything
1231 global $wgGroupPermissions;
1232 $userCanMove = false;
1233 if ( isset( $wgGroupPermissions['user']['move'] ) ) {
1234 $userCanMove = $wgGroupPermissions['user']['move'];
1236 $autoconfirmedCanMove = false;
1237 if ( isset( $wgGroupPermissions['autoconfirmed']['move'] ) ) {
1238 $autoconfirmedCanMove = $wgGroupPermissions['autoconfirmed']['move'];
1240 if ( $user->isAnon() && ( $userCanMove ||
$autoconfirmedCanMove ) ) {
1241 // custom message if logged-in users without any special rights can move
1242 $errors[] = array( 'movenologintext' );
1244 $errors[] = array( 'movenotallowed' );
1247 } elseif ( $action == 'move-target' ) {
1248 if ( !$user->isAllowed( 'move' ) ) {
1249 // User can't move anything
1250 $errors[] = array( 'movenotallowed' );
1251 } elseif ( !$user->isAllowed( 'move-rootuserpages' )
1252 && $this->mNamespace
== NS_USER
&& !$this->isSubpage() ) {
1253 // Show user page-specific message only if the user can move other pages
1254 $errors[] = array( 'cant-move-to-user-page' );
1256 } elseif ( !$user->isAllowed( $action ) ) {
1257 // We avoid expensive display logic for quickUserCan's and such
1260 $groups = array_map( array( 'User', 'makeGroupLinkWiki' ),
1261 User
::getGroupsWithPermission( $action ) );
1268 $wgLang->commaList( $groups ),
1272 $return = array( 'badaccess-group0' );
1274 $errors[] = $return;
1281 * Add the resulting error code to the errors array
1283 * @param $errors Array list of current errors
1284 * @param $result Mixed result of errors
1286 * @return Array list of errors
1288 private function resultToError( $errors, $result ) {
1289 if ( is_array( $result ) && count( $result ) && !is_array( $result[0] ) ) {
1290 // A single array representing an error
1291 $errors[] = $result;
1292 } else if ( is_array( $result ) && is_array( $result[0] ) ) {
1293 // A nested array representing multiple errors
1294 $errors = array_merge( $errors, $result );
1295 } else if ( $result !== '' && is_string( $result ) ) {
1296 // A string representing a message-id
1297 $errors[] = array( $result );
1298 } else if ( $result === false ) {
1299 // a generic "We don't want them to do that"
1300 $errors[] = array( 'badaccess-group0' );
1306 * Check various permission hooks
1307 * @see checkQuickPermissions for parameter information
1309 private function checkPermissionHooks( $action, $user, $errors, $doExpensiveQueries, $short ) {
1310 // Use getUserPermissionsErrors instead
1312 if ( !wfRunHooks( 'userCan', array( &$this, &$user, $action, &$result ) ) ) {
1313 return $result ?
array() : array( array( 'badaccess-group0' ) );
1315 // Check getUserPermissionsErrors hook
1316 if ( !wfRunHooks( 'getUserPermissionsErrors', array( &$this, &$user, $action, &$result ) ) ) {
1317 $errors = $this->resultToError( $errors, $result );
1319 // Check getUserPermissionsErrorsExpensive hook
1320 if ( $doExpensiveQueries && !( $short && count( $errors ) > 0 ) &&
1321 !wfRunHooks( 'getUserPermissionsErrorsExpensive', array( &$this, &$user, $action, &$result ) ) ) {
1322 $errors = $this->resultToError( $errors, $result );
1329 * Check permissions on special pages & namespaces
1330 * @see checkQuickPermissions for parameter information
1332 private function checkSpecialsAndNSPermissions( $action, $user, $errors, $doExpensiveQueries, $short ) {
1333 # Only 'createaccount' and 'execute' can be performed on
1334 # special pages, which don't actually exist in the DB.
1335 $specialOKActions = array( 'createaccount', 'execute' );
1336 if ( NS_SPECIAL
== $this->mNamespace
&& !in_array( $action, $specialOKActions ) ) {
1337 $errors[] = array( 'ns-specialprotected' );
1340 # Check $wgNamespaceProtection for restricted namespaces
1341 if ( $this->isNamespaceProtected() ) {
1342 $ns = $this->mNamespace
== NS_MAIN ?
1343 wfMsg( 'nstab-main' ) : $this->getNsText();
1344 $errors[] = $this->mNamespace
== NS_MEDIAWIKI ?
1345 array( 'protectedinterface' ) : array( 'namespaceprotected', $ns );
1352 * Check CSS/JS sub-page permissions
1353 * @see checkQuickPermissions for parameter information
1355 private function checkCSSandJSPermissions( $action, $user, $errors, $doExpensiveQueries, $short ) {
1356 # Protect css/js subpages of user pages
1357 # XXX: this might be better using restrictions
1358 # XXX: Find a way to work around the php bug that prevents using $this->userCanEditCssSubpage()
1359 # and $this->userCanEditJsSubpage() from working
1360 # XXX: right 'editusercssjs' is deprecated, for backward compatibility only
1361 if ( $action != 'patrol' && !$user->isAllowed( 'editusercssjs' )
1362 && !preg_match( '/^' . preg_quote( $user->getName(), '/' ) . '\//', $this->mTextform
) ) {
1363 if ( $this->isCssSubpage() && !$user->isAllowed( 'editusercss' ) ) {
1364 $errors[] = array( 'customcssjsprotected' );
1365 } else if ( $this->isJsSubpage() && !$user->isAllowed( 'edituserjs' ) ) {
1366 $errors[] = array( 'customcssjsprotected' );
1374 * Check against page_restrictions table requirements on this
1375 * page. The user must possess all required rights for this
1377 * @see checkQuickPermissions for parameter information
1379 private function checkPageRestrictions( $action, $user, $errors, $doExpensiveQueries, $short ) {
1380 foreach ( $this->getRestrictions( $action ) as $right ) {
1381 // Backwards compatibility, rewrite sysop -> protect
1382 if ( $right == 'sysop' ) {
1385 if ( $right != '' && !$user->isAllowed( $right ) ) {
1386 // Users with 'editprotected' permission can edit protected pages
1387 if ( $action == 'edit' && $user->isAllowed( 'editprotected' ) ) {
1388 // Users with 'editprotected' permission cannot edit protected pages
1389 // with cascading option turned on.
1390 if ( $this->mCascadeRestriction
) {
1391 $errors[] = array( 'protectedpagetext', $right );
1394 $errors[] = array( 'protectedpagetext', $right );
1403 * Check restrictions on cascading pages.
1404 * @see checkQuickPermissions for parameter information
1406 private function checkCascadingSourcesRestrictions( $action, $user, $errors, $doExpensiveQueries, $short ) {
1407 if ( $doExpensiveQueries && !$this->isCssJsSubpage() ) {
1408 # We /could/ use the protection level on the source page, but it's
1409 # fairly ugly as we have to establish a precedence hierarchy for pages
1410 # included by multiple cascade-protected pages. So just restrict
1411 # it to people with 'protect' permission, as they could remove the
1412 # protection anyway.
1413 list( $cascadingSources, $restrictions ) = $this->getCascadeProtectionSources();
1414 # Cascading protection depends on more than this page...
1415 # Several cascading protected pages may include this page...
1416 # Check each cascading level
1417 # This is only for protection restrictions, not for all actions
1418 if ( isset( $restrictions[$action] ) ) {
1419 foreach ( $restrictions[$action] as $right ) {
1420 $right = ( $right == 'sysop' ) ?
'protect' : $right;
1421 if ( $right != '' && !$user->isAllowed( $right ) ) {
1423 foreach ( $cascadingSources as $page )
1424 $pages .= '* [[:' . $page->getPrefixedText() . "]]\n";
1425 $errors[] = array( 'cascadeprotected', count( $cascadingSources ), $pages );
1435 * Check action permissions not already checked in checkQuickPermissions
1436 * @see checkQuickPermissions for parameter information
1438 private function checkActionPermissions( $action, $user, $errors, $doExpensiveQueries, $short ) {
1439 if ( $action == 'protect' ) {
1440 if ( $this->getUserPermissionsErrors( 'edit', $user ) != array() ) {
1441 // If they can't edit, they shouldn't protect.
1442 $errors[] = array( 'protect-cantedit' );
1444 } elseif ( $action == 'create' ) {
1445 $title_protection = $this->getTitleProtection();
1446 if( $title_protection ) {
1447 if( $title_protection['pt_create_perm'] == 'sysop' ) {
1448 $title_protection['pt_create_perm'] = 'protect'; // B/C
1450 if( $title_protection['pt_create_perm'] == '' ||
!$user->isAllowed( $title_protection['pt_create_perm'] ) ) {
1451 $errors[] = array( 'titleprotected', User
::whoIs( $title_protection['pt_user'] ), $title_protection['pt_reason'] );
1454 } elseif ( $action == 'move' ) {
1455 // Check for immobile pages
1456 if ( !MWNamespace
::isMovable( $this->mNamespace
) ) {
1457 // Specific message for this case
1458 $errors[] = array( 'immobile-source-namespace', $this->getNsText() );
1459 } elseif ( !$this->isMovable() ) {
1460 // Less specific message for rarer cases
1461 $errors[] = array( 'immobile-page' );
1463 } elseif ( $action == 'move-target' ) {
1464 if ( !MWNamespace
::isMovable( $this->mNamespace
) ) {
1465 $errors[] = array( 'immobile-target-namespace', $this->getNsText() );
1466 } elseif ( !$this->isMovable() ) {
1467 $errors[] = array( 'immobile-target-page' );
1474 * Check that the user isn't blocked from editting.
1475 * @see checkQuickPermissions for parameter information
1477 private function checkUserBlock( $action, $user, $errors, $doExpensiveQueries, $short ) {
1482 global $wgContLang, $wgLang, $wgEmailConfirmToEdit;
1484 if ( $wgEmailConfirmToEdit && !$user->isEmailConfirmed() && $action != 'createaccount' ) {
1485 $errors[] = array( 'confirmedittext' );
1488 // Edit blocks should not affect reading. Account creation blocks handled at userlogin.
1489 if ( $action != 'read' && $action != 'createaccount' && $user->isBlockedFrom( $this ) ) {
1490 $block = $user->mBlock
;
1492 // This is from OutputPage::blockedPage
1493 // Copied at r23888 by werdna
1495 $id = $user->blockedBy();
1496 $reason = $user->blockedFor();
1497 if ( $reason == '' ) {
1498 $reason = wfMsg( 'blockednoreason' );
1502 if ( is_numeric( $id ) ) {
1503 $name = User
::whoIs( $id );
1508 $link = '[[' . $wgContLang->getNsText( NS_USER
) . ":{$name}|{$name}]]";
1509 $blockid = $block->mId
;
1510 $blockExpiry = $user->mBlock
->mExpiry
;
1511 $blockTimestamp = $wgLang->timeanddate( wfTimestamp( TS_MW
, $user->mBlock
->mTimestamp
), true );
1512 if ( $blockExpiry == 'infinity' ) {
1513 // Entry in database (table ipblocks) is 'infinity' but 'ipboptions' uses 'infinite' or 'indefinite'
1514 $scBlockExpiryOptions = wfMsg( 'ipboptions' );
1516 foreach ( explode( ',', $scBlockExpiryOptions ) as $option ) {
1517 if ( !strpos( $option, ':' ) )
1520 list( $show, $value ) = explode( ':', $option );
1522 if ( $value == 'infinite' ||
$value == 'indefinite' ) {
1523 $blockExpiry = $show;
1528 $blockExpiry = $wgLang->timeanddate( wfTimestamp( TS_MW
, $blockExpiry ), true );
1531 $intended = $user->mBlock
->mAddress
;
1533 $errors[] = array( ( $block->mAuto ?
'autoblockedtext' : 'blockedtext' ), $link, $reason, $ip, $name,
1534 $blockid, $blockExpiry, $intended, $blockTimestamp );
1541 * Can $user perform $action on this page? This is an internal function,
1542 * which checks ONLY that previously checked by userCan (i.e. it leaves out
1543 * checks on wfReadOnly() and blocks)
1545 * @param $action \type{\string} action that permission needs to be checked for
1546 * @param $user \type{User} user to check
1547 * @param $doExpensiveQueries \type{\bool} Set this to false to avoid doing unnecessary queries.
1548 * @param $short \type{\bool} Set this to true to stop after the first permission error.
1549 * @return \type{\array} Array of arrays of the arguments to wfMsg to explain permissions problems.
1551 protected function getUserPermissionsErrorsInternal( $action, $user, $doExpensiveQueries = true, $short = false ) {
1552 wfProfileIn( __METHOD__
);
1556 'checkQuickPermissions',
1557 'checkPermissionHooks',
1558 'checkSpecialsAndNSPermissions',
1559 'checkCSSandJSPermissions',
1560 'checkPageRestrictions',
1561 'checkCascadingSourcesRestrictions',
1562 'checkActionPermissions',
1566 while( count( $checks ) > 0 &&
1567 !( $short && count( $errors ) > 0 ) ) {
1568 $method = array_shift( $checks );
1569 $errors = $this->$method( $action, $user, $errors, $doExpensiveQueries, $short );
1572 wfProfileOut( __METHOD__
);
1577 * Is this title subject to title protection?
1579 * @return \type{\mixed} An associative array representing any existent title
1580 * protection, or false if there's none.
1582 private function getTitleProtection() {
1583 // Can't protect pages in special namespaces
1584 if ( $this->getNamespace() < 0 ) {
1588 // Can't protect pages that exist.
1589 if ( $this->exists() ) {
1593 if ( !isset( $this->mTitleProtection
) ) {
1594 $dbr = wfGetDB( DB_SLAVE
);
1595 $res = $dbr->select( 'protected_titles', '*',
1596 array( 'pt_namespace' => $this->getNamespace(), 'pt_title' => $this->getDBkey() ),
1599 // fetchRow returns false if there are no rows.
1600 $this->mTitleProtection
= $dbr->fetchRow( $res );
1602 return $this->mTitleProtection
;
1606 * Update the title protection status
1608 * @param $create_perm \type{\string} Permission required for creation
1609 * @param $reason \type{\string} Reason for protection
1610 * @param $expiry \type{\string} Expiry timestamp
1611 * @return boolean true
1613 public function updateTitleProtection( $create_perm, $reason, $expiry ) {
1614 global $wgUser, $wgContLang;
1616 if ( $create_perm == implode( ',', $this->getRestrictions( 'create' ) )
1617 && $expiry == $this->mRestrictionsExpiry
['create'] ) {
1622 list ( $namespace, $title ) = array( $this->getNamespace(), $this->getDBkey() );
1624 $dbw = wfGetDB( DB_MASTER
);
1626 $encodedExpiry = Block
::encodeExpiry( $expiry, $dbw );
1628 $expiry_description = '';
1629 if ( $encodedExpiry != 'infinity' ) {
1630 $expiry_description = ' (' . wfMsgForContent( 'protect-expiring', $wgContLang->timeanddate( $expiry ),
1631 $wgContLang->date( $expiry ) , $wgContLang->time( $expiry ) ) . ')';
1633 $expiry_description .= ' (' . wfMsgForContent( 'protect-expiry-indefinite' ) . ')';
1636 # Update protection table
1637 if ( $create_perm != '' ) {
1638 $dbw->replace( 'protected_titles', array( array( 'pt_namespace', 'pt_title' ) ),
1640 'pt_namespace' => $namespace,
1641 'pt_title' => $title,
1642 'pt_create_perm' => $create_perm,
1643 'pt_timestamp' => Block
::encodeExpiry( wfTimestampNow(), $dbw ),
1644 'pt_expiry' => $encodedExpiry,
1645 'pt_user' => $wgUser->getId(),
1646 'pt_reason' => $reason,
1650 $dbw->delete( 'protected_titles', array( 'pt_namespace' => $namespace,
1651 'pt_title' => $title ), __METHOD__
);
1653 # Update the protection log
1654 if ( $dbw->affectedRows() ) {
1655 $log = new LogPage( 'protect' );
1657 if ( $create_perm ) {
1658 $params = array( "[create=$create_perm] $expiry_description", '' );
1659 $log->addEntry( ( isset( $this->mRestrictions
['create'] ) && $this->mRestrictions
['create'] ) ?
'modify' : 'protect', $this, trim( $reason ), $params );
1661 $log->addEntry( 'unprotect', $this, $reason );
1669 * Remove any title protection due to page existing
1671 public function deleteTitleProtection() {
1672 $dbw = wfGetDB( DB_MASTER
);
1676 array( 'pt_namespace' => $this->getNamespace(), 'pt_title' => $this->getDBkey() ),
1682 * Would anybody with sufficient privileges be able to move this page?
1683 * Some pages just aren't movable.
1685 * @return \type{\bool} TRUE or FALSE
1687 public function isMovable() {
1688 return MWNamespace
::isMovable( $this->getNamespace() ) && $this->getInterwiki() == '';
1692 * Can $wgUser read this page?
1694 * @return \type{\bool}
1695 * @todo fold these checks into userCan()
1697 public function userCanRead() {
1698 global $wgUser, $wgGroupPermissions;
1700 static $useShortcut = null;
1702 # Initialize the $useShortcut boolean, to determine if we can skip quite a bit of code below
1703 if ( is_null( $useShortcut ) ) {
1704 global $wgRevokePermissions;
1705 $useShortcut = true;
1706 if ( empty( $wgGroupPermissions['*']['read'] ) ) {
1707 # Not a public wiki, so no shortcut
1708 $useShortcut = false;
1709 } elseif ( !empty( $wgRevokePermissions ) ) {
1711 * Iterate through each group with permissions being revoked (key not included since we don't care
1712 * what the group name is), then check if the read permission is being revoked. If it is, then
1713 * we don't use the shortcut below since the user might not be able to read, even though anon
1714 * reading is allowed.
1716 foreach ( $wgRevokePermissions as $perms ) {
1717 if ( !empty( $perms['read'] ) ) {
1718 # We might be removing the read right from the user, so no shortcut
1719 $useShortcut = false;
1727 wfRunHooks( 'userCan', array( &$this, &$wgUser, 'read', &$result ) );
1728 if ( $result !== null ) {
1732 # Shortcut for public wikis, allows skipping quite a bit of code
1733 if ( $useShortcut ) {
1737 if ( $wgUser->isAllowed( 'read' ) ) {
1740 global $wgWhitelistRead;
1743 * Always grant access to the login page.
1744 * Even anons need to be able to log in.
1746 if ( $this->isSpecial( 'Userlogin' ) ||
$this->isSpecial( 'Resetpass' ) ) {
1751 * Bail out if there isn't whitelist
1753 if ( !is_array( $wgWhitelistRead ) ) {
1758 * Check for explicit whitelisting
1760 $name = $this->getPrefixedText();
1761 $dbName = $this->getPrefixedDBKey();
1762 // Check with and without underscores
1763 if ( in_array( $name, $wgWhitelistRead, true ) ||
in_array( $dbName, $wgWhitelistRead, true ) )
1767 * Old settings might have the title prefixed with
1768 * a colon for main-namespace pages
1770 if ( $this->getNamespace() == NS_MAIN
) {
1771 if ( in_array( ':' . $name, $wgWhitelistRead ) ) {
1777 * If it's a special page, ditch the subpage bit
1780 if ( $this->getNamespace() == NS_SPECIAL
) {
1781 $name = $this->getDBkey();
1782 list( $name, /* $subpage */ ) = SpecialPage
::resolveAliasWithSubpage( $name );
1783 if ( $name === false ) {
1784 # Invalid special page, but we show standard login required message
1788 $pure = SpecialPage
::getTitleFor( $name )->getPrefixedText();
1789 if ( in_array( $pure, $wgWhitelistRead, true ) ) {
1799 * Is this a talk page of some sort?
1801 * @return \type{\bool}
1803 public function isTalkPage() {
1804 return MWNamespace
::isTalk( $this->getNamespace() );
1808 * Is this a subpage?
1810 * @return \type{\bool}
1812 public function isSubpage() {
1813 return MWNamespace
::hasSubpages( $this->mNamespace
)
1814 ?
strpos( $this->getText(), '/' ) !== false
1819 * Does this have subpages? (Warning, usually requires an extra DB query.)
1821 * @return \type{\bool}
1823 public function hasSubpages() {
1824 if ( !MWNamespace
::hasSubpages( $this->mNamespace
) ) {
1829 # We dynamically add a member variable for the purpose of this method
1830 # alone to cache the result. There's no point in having it hanging
1831 # around uninitialized in every Title object; therefore we only add it
1832 # if needed and don't declare it statically.
1833 if ( isset( $this->mHasSubpages
) ) {
1834 return $this->mHasSubpages
;
1837 $subpages = $this->getSubpages( 1 );
1838 if ( $subpages instanceof TitleArray
) {
1839 return $this->mHasSubpages
= (bool)$subpages->count();
1841 return $this->mHasSubpages
= false;
1845 * Get all subpages of this page.
1847 * @param $limit Maximum number of subpages to fetch; -1 for no limit
1848 * @return mixed TitleArray, or empty array if this page's namespace
1849 * doesn't allow subpages
1851 public function getSubpages( $limit = -1 ) {
1852 if ( !MWNamespace
::hasSubpages( $this->getNamespace() ) ) {
1856 $dbr = wfGetDB( DB_SLAVE
);
1857 $conds['page_namespace'] = $this->getNamespace();
1858 $conds[] = 'page_title ' . $dbr->buildLike( $this->getDBkey() . '/', $dbr->anyString() );
1860 if ( $limit > -1 ) {
1861 $options['LIMIT'] = $limit;
1863 return $this->mSubpages
= TitleArray
::newFromResult(
1864 $dbr->select( 'page',
1865 array( 'page_id', 'page_namespace', 'page_title', 'page_is_redirect' ),
1874 * Could this page contain custom CSS or JavaScript, based
1877 * @return \type{\bool}
1879 public function isCssOrJsPage() {
1880 return $this->mNamespace
== NS_MEDIAWIKI
1881 && preg_match( '!\.(?:css|js)$!u', $this->mTextform
) > 0;
1885 * Is this a .css or .js subpage of a user page?
1886 * @return \type{\bool}
1888 public function isCssJsSubpage() {
1889 return ( NS_USER
== $this->mNamespace
and preg_match( "/\\/.*\\.(?:css|js)$/", $this->mTextform
) );
1893 * Is this a *valid* .css or .js subpage of a user page?
1894 * Check that the corresponding skin exists
1896 * @return \type{\bool}
1898 public function isValidCssJsSubpage() {
1899 if ( $this->isCssJsSubpage() ) {
1900 $name = $this->getSkinFromCssJsSubpage();
1901 if ( $name == 'common' ) {
1904 $skinNames = Skin
::getSkinNames();
1905 return array_key_exists( $name, $skinNames );
1912 * Trim down a .css or .js subpage title to get the corresponding skin name
1914 * @return string containing skin name from .css or .js subpage title
1916 public function getSkinFromCssJsSubpage() {
1917 $subpage = explode( '/', $this->mTextform
);
1918 $subpage = $subpage[ count( $subpage ) - 1 ];
1919 return( str_replace( array( '.css', '.js' ), array( '', '' ), $subpage ) );
1923 * Is this a .css subpage of a user page?
1925 * @return \type{\bool}
1927 public function isCssSubpage() {
1928 return ( NS_USER
== $this->mNamespace
&& preg_match( "/\\/.*\\.css$/", $this->mTextform
) );
1932 * Is this a .js subpage of a user page?
1934 * @return \type{\bool}
1936 public function isJsSubpage() {
1937 return ( NS_USER
== $this->mNamespace
&& preg_match( "/\\/.*\\.js$/", $this->mTextform
) );
1941 * Protect css subpages of user pages: can $wgUser edit
1944 * @return \type{\bool}
1945 * @todo XXX: this might be better using restrictions
1947 public function userCanEditCssSubpage() {
1949 return ( ( $wgUser->isAllowed( 'editusercssjs' ) && $wgUser->isAllowed( 'editusercss' ) )
1950 ||
preg_match( '/^' . preg_quote( $wgUser->getName(), '/' ) . '\//', $this->mTextform
) );
1954 * Protect js subpages of user pages: can $wgUser edit
1957 * @return \type{\bool}
1958 * @todo XXX: this might be better using restrictions
1960 public function userCanEditJsSubpage() {
1962 return ( ( $wgUser->isAllowed( 'editusercssjs' ) && $wgUser->isAllowed( 'edituserjs' ) )
1963 ||
preg_match( '/^' . preg_quote( $wgUser->getName(), '/' ) . '\//', $this->mTextform
) );
1967 * Cascading protection: Return true if cascading restrictions apply to this page, false if not.
1969 * @return \type{\bool} If the page is subject to cascading restrictions.
1971 public function isCascadeProtected() {
1972 list( $sources, /* $restrictions */ ) = $this->getCascadeProtectionSources( false );
1973 return ( $sources > 0 );
1977 * Cascading protection: Get the source of any cascading restrictions on this page.
1979 * @param $getPages \type{\bool} Whether or not to retrieve the actual pages
1980 * that the restrictions have come from.
1981 * @return \type{\arrayof{mixed title array, restriction array}} Array of the Title
1982 * objects of the pages from which cascading restrictions have come,
1983 * false for none, or true if such restrictions exist, but $getPages was not set.
1984 * The restriction array is an array of each type, each of which contains a
1985 * array of unique groups.
1987 public function getCascadeProtectionSources( $getPages = true ) {
1988 $pagerestrictions = array();
1990 if ( isset( $this->mCascadeSources
) && $getPages ) {
1991 return array( $this->mCascadeSources
, $this->mCascadingRestrictions
);
1992 } else if ( isset( $this->mHasCascadingRestrictions
) && !$getPages ) {
1993 return array( $this->mHasCascadingRestrictions
, $pagerestrictions );
1996 wfProfileIn( __METHOD__
);
1998 $dbr = wfGetDB( DB_SLAVE
);
2000 if ( $this->getNamespace() == NS_FILE
) {
2001 $tables = array( 'imagelinks', 'page_restrictions' );
2002 $where_clauses = array(
2003 'il_to' => $this->getDBkey(),
2008 $tables = array( 'templatelinks', 'page_restrictions' );
2009 $where_clauses = array(
2010 'tl_namespace' => $this->getNamespace(),
2011 'tl_title' => $this->getDBkey(),
2018 $cols = array( 'pr_page', 'page_namespace', 'page_title',
2019 'pr_expiry', 'pr_type', 'pr_level' );
2020 $where_clauses[] = 'page_id=pr_page';
2023 $cols = array( 'pr_expiry' );
2026 $res = $dbr->select( $tables, $cols, $where_clauses, __METHOD__
);
2028 $sources = $getPages ?
array() : false;
2029 $now = wfTimestampNow();
2030 $purgeExpired = false;
2032 foreach ( $res as $row ) {
2033 $expiry = Block
::decodeExpiry( $row->pr_expiry
);
2034 if ( $expiry > $now ) {
2036 $page_id = $row->pr_page
;
2037 $page_ns = $row->page_namespace
;
2038 $page_title = $row->page_title
;
2039 $sources[$page_id] = Title
::makeTitle( $page_ns, $page_title );
2040 # Add groups needed for each restriction type if its not already there
2041 # Make sure this restriction type still exists
2043 if ( !isset( $pagerestrictions[$row->pr_type
] ) ) {
2044 $pagerestrictions[$row->pr_type
] = array();
2047 if ( isset( $pagerestrictions[$row->pr_type
] ) &&
2048 !in_array( $row->pr_level
, $pagerestrictions[$row->pr_type
] ) ) {
2049 $pagerestrictions[$row->pr_type
][] = $row->pr_level
;
2055 // Trigger lazy purge of expired restrictions from the db
2056 $purgeExpired = true;
2059 if ( $purgeExpired ) {
2060 Title
::purgeExpiredRestrictions();
2063 wfProfileOut( __METHOD__
);
2066 $this->mCascadeSources
= $sources;
2067 $this->mCascadingRestrictions
= $pagerestrictions;
2069 $this->mHasCascadingRestrictions
= $sources;
2072 return array( $sources, $pagerestrictions );
2076 * Returns cascading restrictions for the current article
2080 function areRestrictionsCascading() {
2081 if ( !$this->mRestrictionsLoaded
) {
2082 $this->loadRestrictions();
2085 return $this->mCascadeRestriction
;
2089 * Loads a string into mRestrictions array
2091 * @param $res \type{Resource} restrictions as an SQL result.
2092 * @param $oldFashionedRestrictions string comma-separated list of page
2093 * restrictions from page table (pre 1.10)
2095 private function loadRestrictionsFromResultWrapper( $res, $oldFashionedRestrictions = null ) {
2098 foreach ( $res as $row ) {
2102 $this->loadRestrictionsFromRows( $rows, $oldFashionedRestrictions );
2106 * Compiles list of active page restrictions from both page table (pre 1.10)
2107 * and page_restrictions table
2109 * @param $rows array of db result objects
2110 * @param $oldFashionedRestrictions string comma-separated list of page
2111 * restrictions from page table (pre 1.10)
2113 public function loadRestrictionsFromRows( $rows, $oldFashionedRestrictions = null ) {
2114 $dbr = wfGetDB( DB_SLAVE
);
2116 $restrictionTypes = $this->getRestrictionTypes();
2118 foreach ( $restrictionTypes as $type ) {
2119 $this->mRestrictions
[$type] = array();
2120 $this->mRestrictionsExpiry
[$type] = Block
::decodeExpiry( '' );
2123 $this->mCascadeRestriction
= false;
2125 # Backwards-compatibility: also load the restrictions from the page record (old format).
2127 if ( $oldFashionedRestrictions === null ) {
2128 $oldFashionedRestrictions = $dbr->selectField( 'page', 'page_restrictions',
2129 array( 'page_id' => $this->getArticleId() ), __METHOD__
);
2132 if ( $oldFashionedRestrictions != '' ) {
2134 foreach ( explode( ':', trim( $oldFashionedRestrictions ) ) as $restrict ) {
2135 $temp = explode( '=', trim( $restrict ) );
2136 if ( count( $temp ) == 1 ) {
2137 // old old format should be treated as edit/move restriction
2138 $this->mRestrictions
['edit'] = explode( ',', trim( $temp[0] ) );
2139 $this->mRestrictions
['move'] = explode( ',', trim( $temp[0] ) );
2141 $this->mRestrictions
[$temp[0]] = explode( ',', trim( $temp[1] ) );
2145 $this->mOldRestrictions
= true;
2149 if ( count( $rows ) ) {
2150 # Current system - load second to make them override.
2151 $now = wfTimestampNow();
2152 $purgeExpired = false;
2154 foreach ( $rows as $row ) {
2155 # Cycle through all the restrictions.
2157 // Don't take care of restrictions types that aren't allowed
2159 if ( !in_array( $row->pr_type
, $restrictionTypes ) )
2162 // This code should be refactored, now that it's being used more generally,
2163 // But I don't really see any harm in leaving it in Block for now -werdna
2164 $expiry = Block
::decodeExpiry( $row->pr_expiry
);
2166 // Only apply the restrictions if they haven't expired!
2167 if ( !$expiry ||
$expiry > $now ) {
2168 $this->mRestrictionsExpiry
[$row->pr_type
] = $expiry;
2169 $this->mRestrictions
[$row->pr_type
] = explode( ',', trim( $row->pr_level
) );
2171 $this->mCascadeRestriction |
= $row->pr_cascade
;
2173 // Trigger a lazy purge of expired restrictions
2174 $purgeExpired = true;
2178 if ( $purgeExpired ) {
2179 Title
::purgeExpiredRestrictions();
2183 $this->mRestrictionsLoaded
= true;
2187 * Load restrictions from the page_restrictions table
2189 * @param $oldFashionedRestrictions string comma-separated list of page
2190 * restrictions from page table (pre 1.10)
2192 public function loadRestrictions( $oldFashionedRestrictions = null ) {
2193 if ( !$this->mRestrictionsLoaded
) {
2194 if ( $this->exists() ) {
2195 $dbr = wfGetDB( DB_SLAVE
);
2197 $res = $dbr->select( 'page_restrictions', '*',
2198 array( 'pr_page' => $this->getArticleId() ), __METHOD__
);
2200 $this->loadRestrictionsFromResultWrapper( $res, $oldFashionedRestrictions );
2202 $title_protection = $this->getTitleProtection();
2204 if ( $title_protection ) {
2205 $now = wfTimestampNow();
2206 $expiry = Block
::decodeExpiry( $title_protection['pt_expiry'] );
2208 if ( !$expiry ||
$expiry > $now ) {
2209 // Apply the restrictions
2210 $this->mRestrictionsExpiry
['create'] = $expiry;
2211 $this->mRestrictions
['create'] = explode( ',', trim( $title_protection['pt_create_perm'] ) );
2212 } else { // Get rid of the old restrictions
2213 Title
::purgeExpiredRestrictions();
2216 $this->mRestrictionsExpiry
['create'] = Block
::decodeExpiry( '' );
2218 $this->mRestrictionsLoaded
= true;
2224 * Purge expired restrictions from the page_restrictions table
2226 static function purgeExpiredRestrictions() {
2227 $dbw = wfGetDB( DB_MASTER
);
2229 'page_restrictions',
2230 array( 'pr_expiry < ' . $dbw->addQuotes( $dbw->timestamp() ) ),
2236 array( 'pt_expiry < ' . $dbw->addQuotes( $dbw->timestamp() ) ),
2242 * Accessor/initialisation for mRestrictions
2244 * @param $action \type{\string} action that permission needs to be checked for
2245 * @return \type{\arrayof{\string}} the array of groups allowed to edit this article
2247 public function getRestrictions( $action ) {
2248 if ( !$this->mRestrictionsLoaded
) {
2249 $this->loadRestrictions();
2251 return isset( $this->mRestrictions
[$action] )
2252 ?
$this->mRestrictions
[$action]
2257 * Get the expiry time for the restriction against a given action
2259 * @return 14-char timestamp, or 'infinity' if the page is protected forever
2260 * or not protected at all, or false if the action is not recognised.
2262 public function getRestrictionExpiry( $action ) {
2263 if ( !$this->mRestrictionsLoaded
) {
2264 $this->loadRestrictions();
2266 return isset( $this->mRestrictionsExpiry
[$action] ) ?
$this->mRestrictionsExpiry
[$action] : false;
2270 * Is there a version of this page in the deletion archive?
2272 * @return \type{\int} the number of archived revisions
2274 public function isDeleted() {
2275 if ( $this->getNamespace() < 0 ) {
2278 $dbr = wfGetDB( DB_SLAVE
);
2279 $n = $dbr->selectField( 'archive', 'COUNT(*)',
2280 array( 'ar_namespace' => $this->getNamespace(), 'ar_title' => $this->getDBkey() ),
2283 if ( $this->getNamespace() == NS_FILE
) {
2284 $n +
= $dbr->selectField( 'filearchive', 'COUNT(*)',
2285 array( 'fa_name' => $this->getDBkey() ),
2294 * Is there a version of this page in the deletion archive?
2298 public function isDeletedQuick() {
2299 if ( $this->getNamespace() < 0 ) {
2302 $dbr = wfGetDB( DB_SLAVE
);
2303 $deleted = (bool)$dbr->selectField( 'archive', '1',
2304 array( 'ar_namespace' => $this->getNamespace(), 'ar_title' => $this->getDBkey() ),
2307 if ( !$deleted && $this->getNamespace() == NS_FILE
) {
2308 $deleted = (bool)$dbr->selectField( 'filearchive', '1',
2309 array( 'fa_name' => $this->getDBkey() ),
2317 * Get the article ID for this Title from the link cache,
2318 * adding it if necessary
2320 * @param $flags \type{\int} a bit field; may be Title::GAID_FOR_UPDATE to select
2322 * @return \type{\int} the ID
2324 public function getArticleID( $flags = 0 ) {
2325 if ( $this->getNamespace() < 0 ) {
2326 return $this->mArticleID
= 0;
2328 $linkCache = LinkCache
::singleton();
2329 if ( $flags & self
::GAID_FOR_UPDATE
) {
2330 $oldUpdate = $linkCache->forUpdate( true );
2331 $linkCache->clearLink( $this );
2332 $this->mArticleID
= $linkCache->addLinkObj( $this );
2333 $linkCache->forUpdate( $oldUpdate );
2335 if ( -1 == $this->mArticleID
) {
2336 $this->mArticleID
= $linkCache->addLinkObj( $this );
2339 return $this->mArticleID
;
2343 * Is this an article that is a redirect page?
2344 * Uses link cache, adding it if necessary
2346 * @param $flags \type{\int} a bit field; may be Title::GAID_FOR_UPDATE to select for update
2347 * @return \type{\bool}
2349 public function isRedirect( $flags = 0 ) {
2350 if ( !is_null( $this->mRedirect
) ) {
2351 return $this->mRedirect
;
2353 # Calling getArticleID() loads the field from cache as needed
2354 if ( !$this->getArticleID( $flags ) ) {
2355 return $this->mRedirect
= false;
2357 $linkCache = LinkCache
::singleton();
2358 $this->mRedirect
= (bool)$linkCache->getGoodLinkFieldObj( $this, 'redirect' );
2360 return $this->mRedirect
;
2364 * What is the length of this page?
2365 * Uses link cache, adding it if necessary
2367 * @param $flags \type{\int} a bit field; may be Title::GAID_FOR_UPDATE to select for update
2368 * @return \type{\bool}
2370 public function getLength( $flags = 0 ) {
2371 if ( $this->mLength
!= -1 ) {
2372 return $this->mLength
;
2374 # Calling getArticleID() loads the field from cache as needed
2375 if ( !$this->getArticleID( $flags ) ) {
2376 return $this->mLength
= 0;
2378 $linkCache = LinkCache
::singleton();
2379 $this->mLength
= intval( $linkCache->getGoodLinkFieldObj( $this, 'length' ) );
2381 return $this->mLength
;
2385 * What is the page_latest field for this page?
2387 * @param $flags \type{\int} a bit field; may be Title::GAID_FOR_UPDATE to select for update
2388 * @return \type{\int} or 0 if the page doesn't exist
2390 public function getLatestRevID( $flags = 0 ) {
2391 if ( $this->mLatestID
!== false ) {
2392 return intval( $this->mLatestID
);
2394 # Calling getArticleID() loads the field from cache as needed
2395 if ( !$this->getArticleID( $flags ) ) {
2396 return $this->mLatestID
= 0;
2398 $linkCache = LinkCache
::singleton();
2399 $this->mLatestID
= intval( $linkCache->getGoodLinkFieldObj( $this, 'revision' ) );
2401 return $this->mLatestID
;
2405 * This clears some fields in this object, and clears any associated
2406 * keys in the "bad links" section of the link cache.
2408 * - This is called from Article::insertNewArticle() to allow
2409 * loading of the new page_id. It's also called from
2410 * Article::doDeleteArticle()
2412 * @param $newid \type{\int} the new Article ID
2414 public function resetArticleID( $newid ) {
2415 $linkCache = LinkCache
::singleton();
2416 $linkCache->clearBadLink( $this->getPrefixedDBkey() );
2418 if ( $newid === false ) {
2419 $this->mArticleID
= -1;
2421 $this->mArticleID
= intval( $newid );
2423 $this->mRestrictionsLoaded
= false;
2424 $this->mRestrictions
= array();
2425 $this->mRedirect
= null;
2426 $this->mLength
= -1;
2427 $this->mLatestID
= false;
2431 * Updates page_touched for this page; called from LinksUpdate.php
2433 * @return \type{\bool} true if the update succeded
2435 public function invalidateCache() {
2436 if ( wfReadOnly() ) {
2439 $dbw = wfGetDB( DB_MASTER
);
2440 $success = $dbw->update(
2442 array( 'page_touched' => $dbw->timestamp() ),
2446 HTMLFileCache
::clearFileCache( $this );
2451 * Prefix some arbitrary text with the namespace or interwiki prefix
2454 * @param $name \type{\string} the text
2455 * @return \type{\string} the prefixed text
2458 /* private */ function prefix( $name ) {
2460 if ( $this->mInterwiki
!= '' ) {
2461 $p = $this->mInterwiki
. ':';
2463 if ( 0 != $this->mNamespace
) {
2464 $p .= $this->getNsText() . ':';
2470 * Returns a simple regex that will match on characters and sequences invalid in titles.
2471 * Note that this doesn't pick up many things that could be wrong with titles, but that
2472 * replacing this regex with something valid will make many titles valid.
2474 * @return string regex string
2476 static function getTitleInvalidRegex() {
2477 static $rxTc = false;
2479 # Matching titles will be held as illegal.
2481 # Any character not allowed is forbidden...
2482 '[^' . Title
::legalChars() . ']' .
2483 # URL percent encoding sequences interfere with the ability
2484 # to round-trip titles -- you can't link to them consistently.
2485 '|%[0-9A-Fa-f]{2}' .
2486 # XML/HTML character references produce similar issues.
2487 '|&[A-Za-z0-9\x80-\xff]+;' .
2489 '|&#x[0-9A-Fa-f]+;' .
2497 * Capitalize a text string for a title if it belongs to a namespace that capitalizes
2499 * @param $text string containing title to capitalize
2500 * @param $ns int namespace index, defaults to NS_MAIN
2501 * @return String containing capitalized title
2503 public static function capitalize( $text, $ns = NS_MAIN
) {
2506 if ( MWNamespace
::isCapitalized( $ns ) ) {
2507 return $wgContLang->ucfirst( $text );
2514 * Secure and split - main initialisation function for this object
2516 * Assumes that mDbkeyform has been set, and is urldecoded
2517 * and uses underscores, but not otherwise munged. This function
2518 * removes illegal characters, splits off the interwiki and
2519 * namespace prefixes, sets the other forms, and canonicalizes
2522 * @return \type{\bool} true on success
2524 private function secureAndSplit() {
2525 global $wgContLang, $wgLocalInterwiki;
2528 $rxTc = self
::getTitleInvalidRegex();
2530 $this->mInterwiki
= $this->mFragment
= '';
2531 $this->mNamespace
= $this->mDefaultNamespace
; # Usually NS_MAIN
2533 $dbkey = $this->mDbkeyform
;
2535 # Strip Unicode bidi override characters.
2536 # Sometimes they slip into cut-n-pasted page titles, where the
2537 # override chars get included in list displays.
2538 $dbkey = preg_replace( '/\xE2\x80[\x8E\x8F\xAA-\xAE]/S', '', $dbkey );
2540 # Clean up whitespace
2541 # Note: use of the /u option on preg_replace here will cause
2542 # input with invalid UTF-8 sequences to be nullified out in PHP 5.2.x,
2543 # conveniently disabling them.
2545 $dbkey = preg_replace( '/[ _\xA0\x{1680}\x{180E}\x{2000}-\x{200A}\x{2028}\x{2029}\x{202F}\x{205F}\x{3000}]+/u', '_', $dbkey );
2546 $dbkey = trim( $dbkey, '_' );
2548 if ( $dbkey == '' ) {
2552 if ( false !== strpos( $dbkey, UTF8_REPLACEMENT
) ) {
2553 # Contained illegal UTF-8 sequences or forbidden Unicode chars.
2557 $this->mDbkeyform
= $dbkey;
2559 # Initial colon indicates main namespace rather than specified default
2560 # but should not create invalid {ns,title} pairs such as {0,Project:Foo}
2561 if ( ':' == $dbkey { 0 } ) {
2562 $this->mNamespace
= NS_MAIN
;
2563 $dbkey = substr( $dbkey, 1 ); # remove the colon but continue processing
2564 $dbkey = trim( $dbkey, '_' ); # remove any subsequent whitespace
2567 # Namespace or interwiki prefix
2569 $prefixRegexp = "/^(.+?)_*:_*(.*)$/S";
2572 if ( preg_match( $prefixRegexp, $dbkey, $m ) ) {
2574 if ( ( $ns = $wgContLang->getNsIndex( $p ) ) !== false ) {
2575 # Ordinary namespace
2577 $this->mNamespace
= $ns;
2578 # For Talk:X pages, check if X has a "namespace" prefix
2579 if ( $ns == NS_TALK
&& preg_match( $prefixRegexp, $dbkey, $x ) ) {
2580 if ( $wgContLang->getNsIndex( $x[1] ) ) {
2581 return false; # Disallow Talk:File:x type titles...
2582 } else if ( Interwiki
::isValidInterwiki( $x[1] ) ) {
2583 return false; # Disallow Talk:Interwiki:x type titles...
2586 } elseif ( Interwiki
::isValidInterwiki( $p ) ) {
2587 if ( !$firstPass ) {
2588 # Can't make a local interwiki link to an interwiki link.
2589 # That's just crazy!
2595 $this->mInterwiki
= $wgContLang->lc( $p );
2597 # Redundant interwiki prefix to the local wiki
2598 if ( 0 == strcasecmp( $this->mInterwiki
, $wgLocalInterwiki ) ) {
2599 if ( $dbkey == '' ) {
2600 # Can't have an empty self-link
2603 $this->mInterwiki
= '';
2605 # Do another namespace split...
2609 # If there's an initial colon after the interwiki, that also
2610 # resets the default namespace
2611 if ( $dbkey !== '' && $dbkey[0] == ':' ) {
2612 $this->mNamespace
= NS_MAIN
;
2613 $dbkey = substr( $dbkey, 1 );
2616 # If there's no recognized interwiki or namespace,
2617 # then let the colon expression be part of the title.
2622 # We already know that some pages won't be in the database!
2624 if ( $this->mInterwiki
!= '' || NS_SPECIAL
== $this->mNamespace
) {
2625 $this->mArticleID
= 0;
2627 $fragment = strstr( $dbkey, '#' );
2628 if ( false !== $fragment ) {
2629 $this->setFragment( preg_replace( '/^#_*/', '#', $fragment ) );
2630 $dbkey = substr( $dbkey, 0, strlen( $dbkey ) - strlen( $fragment ) );
2631 # remove whitespace again: prevents "Foo_bar_#"
2632 # becoming "Foo_bar_"
2633 $dbkey = preg_replace( '/_*$/', '', $dbkey );
2636 # Reject illegal characters.
2638 if ( preg_match( $rxTc, $dbkey ) ) {
2643 * Pages with "/./" or "/../" appearing in the URLs will often be un-
2644 * reachable due to the way web browsers deal with 'relative' URLs.
2645 * Also, they conflict with subpage syntax. Forbid them explicitly.
2647 if ( strpos( $dbkey, '.' ) !== false &&
2648 ( $dbkey === '.' ||
$dbkey === '..' ||
2649 strpos( $dbkey, './' ) === 0 ||
2650 strpos( $dbkey, '../' ) === 0 ||
2651 strpos( $dbkey, '/./' ) !== false ||
2652 strpos( $dbkey, '/../' ) !== false ||
2653 substr( $dbkey, -2 ) == '/.' ||
2654 substr( $dbkey, -3 ) == '/..' ) )
2660 * Magic tilde sequences? Nu-uh!
2662 if ( strpos( $dbkey, '~~~' ) !== false ) {
2667 * Limit the size of titles to 255 bytes.
2668 * This is typically the size of the underlying database field.
2669 * We make an exception for special pages, which don't need to be stored
2670 * in the database, and may edge over 255 bytes due to subpage syntax
2671 * for long titles, e.g. [[Special:Block/Long name]]
2673 if ( ( $this->mNamespace
!= NS_SPECIAL
&& strlen( $dbkey ) > 255 ) ||
2674 strlen( $dbkey ) > 512 )
2680 * Normally, all wiki links are forced to have
2681 * an initial capital letter so [[foo]] and [[Foo]]
2682 * point to the same place.
2684 * Don't force it for interwikis, since the other
2685 * site might be case-sensitive.
2687 $this->mUserCaseDBKey
= $dbkey;
2688 if ( $this->mInterwiki
== '' ) {
2689 $dbkey = self
::capitalize( $dbkey, $this->mNamespace
);
2693 * Can't make a link to a namespace alone...
2694 * "empty" local links can only be self-links
2695 * with a fragment identifier.
2697 if ( $dbkey == '' &&
2698 $this->mInterwiki
== '' &&
2699 $this->mNamespace
!= NS_MAIN
) {
2702 // Allow IPv6 usernames to start with '::' by canonicalizing IPv6 titles.
2703 // IP names are not allowed for accounts, and can only be referring to
2704 // edits from the IP. Given '::' abbreviations and caps/lowercaps,
2705 // there are numerous ways to present the same IP. Having sp:contribs scan
2706 // them all is silly and having some show the edits and others not is
2707 // inconsistent. Same for talk/userpages. Keep them normalized instead.
2708 $dbkey = ( $this->mNamespace
== NS_USER ||
$this->mNamespace
== NS_USER_TALK
) ?
2709 IP
::sanitizeIP( $dbkey ) : $dbkey;
2710 // Any remaining initial :s are illegal.
2711 if ( $dbkey !== '' && ':' == $dbkey { 0 } ) {
2716 $this->mDbkeyform
= $dbkey;
2717 $this->mUrlform
= wfUrlencode( $dbkey );
2719 $this->mTextform
= str_replace( '_', ' ', $dbkey );
2725 * Set the fragment for this title. Removes the first character from the
2726 * specified fragment before setting, so it assumes you're passing it with
2729 * Deprecated for public use, use Title::makeTitle() with fragment parameter.
2730 * Still in active use privately.
2732 * @param $fragment \type{\string} text
2734 public function setFragment( $fragment ) {
2735 $this->mFragment
= str_replace( '_', ' ', substr( $fragment, 1 ) );
2739 * Get a Title object associated with the talk page of this article
2741 * @return Title the object for the talk page
2743 public function getTalkPage() {
2744 return Title
::makeTitle( MWNamespace
::getTalk( $this->getNamespace() ), $this->getDBkey() );
2748 * Get a title object associated with the subject page of this
2751 * @return Title the object for the subject page
2753 public function getSubjectPage() {
2754 // Is this the same title?
2755 $subjectNS = MWNamespace
::getSubject( $this->getNamespace() );
2756 if ( $this->getNamespace() == $subjectNS ) {
2759 return Title
::makeTitle( $subjectNS, $this->getDBkey() );
2763 * Get an array of Title objects linking to this Title
2764 * Also stores the IDs in the link cache.
2766 * WARNING: do not use this function on arbitrary user-supplied titles!
2767 * On heavily-used templates it will max out the memory.
2769 * @param $options Array: may be FOR UPDATE
2770 * @param $table String: table name
2771 * @param $prefix String: fields prefix
2772 * @return \type{\arrayof{Title}} the Title objects linking here
2774 public function getLinksTo( $options = array(), $table = 'pagelinks', $prefix = 'pl' ) {
2775 $linkCache = LinkCache
::singleton();
2777 if ( count( $options ) > 0 ) {
2778 $db = wfGetDB( DB_MASTER
);
2780 $db = wfGetDB( DB_SLAVE
);
2784 array( 'page', $table ),
2785 array( 'page_namespace', 'page_title', 'page_id', 'page_len', 'page_is_redirect', 'page_latest' ),
2787 "{$prefix}_from=page_id",
2788 "{$prefix}_namespace" => $this->getNamespace(),
2789 "{$prefix}_title" => $this->getDBkey() ),
2795 if ( $db->numRows( $res ) ) {
2796 foreach ( $res as $row ) {
2797 if ( $titleObj = Title
::makeTitle( $row->page_namespace
, $row->page_title
) ) {
2798 $linkCache->addGoodLinkObj( $row->page_id
, $titleObj, $row->page_len
, $row->page_is_redirect
, $row->page_latest
);
2799 $retVal[] = $titleObj;
2807 * Get an array of Title objects using this Title as a template
2808 * Also stores the IDs in the link cache.
2810 * WARNING: do not use this function on arbitrary user-supplied titles!
2811 * On heavily-used templates it will max out the memory.
2813 * @param $options Array: may be FOR UPDATE
2814 * @return \type{\arrayof{Title}} the Title objects linking here
2816 public function getTemplateLinksTo( $options = array() ) {
2817 return $this->getLinksTo( $options, 'templatelinks', 'tl' );
2821 * Get an array of Title objects referring to non-existent articles linked from this page
2823 * @todo check if needed (used only in SpecialBrokenRedirects.php, and should use redirect table in this case)
2824 * @return \type{\arrayof{Title}} the Title objects
2826 public function getBrokenLinksFrom() {
2827 if ( $this->getArticleId() == 0 ) {
2828 # All links from article ID 0 are false positives
2832 $dbr = wfGetDB( DB_SLAVE
);
2833 $res = $dbr->select(
2834 array( 'page', 'pagelinks' ),
2835 array( 'pl_namespace', 'pl_title' ),
2837 'pl_from' => $this->getArticleId(),
2838 'page_namespace IS NULL'
2840 __METHOD__
, array(),
2844 array( 'pl_namespace=page_namespace', 'pl_title=page_title' )
2850 foreach ( $res as $row ) {
2851 $retVal[] = Title
::makeTitle( $row->pl_namespace
, $row->pl_title
);
2858 * Get a list of URLs to purge from the Squid cache when this
2861 * @return \type{\arrayof{\string}} the URLs
2863 public function getSquidURLs() {
2867 $this->getInternalURL(),
2868 $this->getInternalURL( 'action=history' )
2871 // purge variant urls as well
2872 if ( $wgContLang->hasVariants() ) {
2873 $variants = $wgContLang->getVariants();
2874 foreach ( $variants as $vCode ) {
2875 $urls[] = $this->getInternalURL( '', $vCode );
2883 * Purge all applicable Squid URLs
2885 public function purgeSquid() {
2887 if ( $wgUseSquid ) {
2888 $urls = $this->getSquidURLs();
2889 $u = new SquidUpdate( $urls );
2895 * Move this page without authentication
2897 * @param $nt \type{Title} the new page Title
2898 * @return \type{\mixed} true on success, getUserPermissionsErrors()-like array on failure
2900 public function moveNoAuth( &$nt ) {
2901 return $this->moveTo( $nt, false );
2905 * Check whether a given move operation would be valid.
2906 * Returns true if ok, or a getUserPermissionsErrors()-like array otherwise
2908 * @param $nt \type{Title} the new title
2909 * @param $auth \type{\bool} indicates whether $wgUser's permissions
2911 * @param $reason \type{\string} is the log summary of the move, used for spam checking
2912 * @return \type{\mixed} True on success, getUserPermissionsErrors()-like array on failure
2914 public function isValidMoveOperation( &$nt, $auth = true, $reason = '' ) {
2919 // Normally we'd add this to $errors, but we'll get
2920 // lots of syntax errors if $nt is not an object
2921 return array( array( 'badtitletext' ) );
2923 if ( $this->equals( $nt ) ) {
2924 $errors[] = array( 'selfmove' );
2926 if ( !$this->isMovable() ) {
2927 $errors[] = array( 'immobile-source-namespace', $this->getNsText() );
2929 if ( $nt->getInterwiki() != '' ) {
2930 $errors[] = array( 'immobile-target-namespace-iw' );
2932 if ( !$nt->isMovable() ) {
2933 $errors[] = array( 'immobile-target-namespace', $nt->getNsText() );
2936 $oldid = $this->getArticleID();
2937 $newid = $nt->getArticleID();
2939 if ( strlen( $nt->getDBkey() ) < 1 ) {
2940 $errors[] = array( 'articleexists' );
2942 if ( ( $this->getDBkey() == '' ) ||
2944 ( $nt->getDBkey() == '' ) ) {
2945 $errors[] = array( 'badarticleerror' );
2948 // Image-specific checks
2949 if ( $this->getNamespace() == NS_FILE
) {
2950 if ( $nt->getNamespace() != NS_FILE
) {
2951 $errors[] = array( 'imagenocrossnamespace' );
2953 $file = wfLocalFile( $this );
2954 if ( $file->exists() ) {
2955 if ( $nt->getText() != wfStripIllegalFilenameChars( $nt->getText() ) ) {
2956 $errors[] = array( 'imageinvalidfilename' );
2958 if ( !File
::checkExtensionCompatibility( $file, $nt->getDBkey() ) ) {
2959 $errors[] = array( 'imagetypemismatch' );
2962 $destfile = wfLocalFile( $nt );
2963 if ( !$wgUser->isAllowed( 'reupload-shared' ) && !$destfile->exists() && wfFindFile( $nt ) ) {
2964 $errors[] = array( 'file-exists-sharedrepo' );
2968 if ( $nt->getNamespace() == NS_FILE
&& $this->getNamespace() != NS_FILE
) {
2969 $errors[] = array( 'nonfile-cannot-move-to-file' );
2973 $errors = wfMergeErrorArrays( $errors,
2974 $this->getUserPermissionsErrors( 'move', $wgUser ),
2975 $this->getUserPermissionsErrors( 'edit', $wgUser ),
2976 $nt->getUserPermissionsErrors( 'move-target', $wgUser ),
2977 $nt->getUserPermissionsErrors( 'edit', $wgUser ) );
2980 $match = EditPage
::matchSummarySpamRegex( $reason );
2981 if ( $match !== false ) {
2982 // This is kind of lame, won't display nice
2983 $errors[] = array( 'spamprotectiontext' );
2987 if ( !wfRunHooks( 'AbortMove', array( $this, $nt, $wgUser, &$err, $reason ) ) ) {
2988 $errors[] = array( 'hookaborted', $err );
2991 # The move is allowed only if (1) the target doesn't exist, or
2992 # (2) the target is a redirect to the source, and has no history
2993 # (so we can undo bad moves right after they're done).
2995 if ( 0 != $newid ) { # Target exists; check for validity
2996 if ( !$this->isValidMoveTarget( $nt ) ) {
2997 $errors[] = array( 'articleexists' );
3000 $tp = $nt->getTitleProtection();
3001 $right = ( $tp['pt_create_perm'] == 'sysop' ) ?
'protect' : $tp['pt_create_perm'];
3002 if ( $tp and !$wgUser->isAllowed( $right ) ) {
3003 $errors[] = array( 'cantmove-titleprotected' );
3006 if ( empty( $errors ) ) {
3013 * Move a title to a new location
3015 * @param $nt \type{Title} the new title
3016 * @param $auth \type{\bool} indicates whether $wgUser's permissions
3018 * @param $reason \type{\string} The reason for the move
3019 * @param $createRedirect \type{\bool} Whether to create a redirect from the old title to the new title.
3020 * Ignored if the user doesn't have the suppressredirect right.
3021 * @return \type{\mixed} true on success, getUserPermissionsErrors()-like array on failure
3023 public function moveTo( &$nt, $auth = true, $reason = '', $createRedirect = true ) {
3026 $err = $this->isValidMoveOperation( $nt, $auth, $reason );
3027 if ( is_array( $err ) ) {
3031 // If it is a file, move it first. It is done before all other moving stuff is done because it's hard to revert
3032 $dbw = wfGetDB( DB_MASTER
);
3033 if ( $this->getNamespace() == NS_FILE
) {
3034 $file = wfLocalFile( $this );
3035 if ( $file->exists() ) {
3036 $status = $file->move( $nt );
3037 if ( !$status->isOk() ) {
3038 return $status->getErrorsArray();
3043 $pageid = $this->getArticleID();
3044 $protected = $this->isProtected();
3045 if ( $nt->exists() ) {
3046 $err = $this->moveOverExistingRedirect( $nt, $reason, $createRedirect );
3047 $pageCountChange = ( $createRedirect ?
0 : -1 );
3048 } else { # Target didn't exist, do normal move.
3049 $err = $this->moveToNewTitle( $nt, $reason, $createRedirect );
3050 $pageCountChange = ( $createRedirect ?
1 : 0 );
3053 if ( is_array( $err ) ) {
3056 $redirid = $this->getArticleID();
3058 // Refresh the sortkey for this row. Be careful to avoid resetting
3059 // cl_timestamp, which may disturb time-based lists on some sites.
3060 $prefix = $dbw->selectField(
3062 'cl_sortkey_prefix',
3063 array( 'cl_from' => $pageid ),
3066 $dbw->update( 'categorylinks',
3068 'cl_sortkey' => $wgContLang->convertToSortkey( $nt->getCategorySortkey( $prefix ) ),
3069 'cl_timestamp=cl_timestamp' ),
3070 array( 'cl_from' => $pageid ),
3074 # Protect the redirect title as the title used to be...
3075 $dbw->insertSelect( 'page_restrictions', 'page_restrictions',
3077 'pr_page' => $redirid,
3078 'pr_type' => 'pr_type',
3079 'pr_level' => 'pr_level',
3080 'pr_cascade' => 'pr_cascade',
3081 'pr_user' => 'pr_user',
3082 'pr_expiry' => 'pr_expiry'
3084 array( 'pr_page' => $pageid ),
3088 # Update the protection log
3089 $log = new LogPage( 'protect' );
3090 $comment = wfMsgForContent( 'prot_1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() );
3092 $comment .= wfMsgForContent( 'colon-separator' ) . $reason;
3094 $log->addEntry( 'move_prot', $nt, $comment, array( $this->getPrefixedText() ) ); // FIXME: $params?
3098 $oldnamespace = $this->getNamespace() & ~
1;
3099 $newnamespace = $nt->getNamespace() & ~
1;
3100 $oldtitle = $this->getDBkey();
3101 $newtitle = $nt->getDBkey();
3103 if ( $oldnamespace != $newnamespace ||
$oldtitle != $newtitle ) {
3104 WatchedItem
::duplicateEntries( $this, $nt );
3107 # Update search engine
3108 $u = new SearchUpdate( $pageid, $nt->getPrefixedDBkey() );
3110 $u = new SearchUpdate( $redirid, $this->getPrefixedDBkey(), '' );
3114 if ( $this->isContentPage() && !$nt->isContentPage() ) {
3115 # No longer a content page
3116 # Not viewed, edited, removing
3117 $u = new SiteStatsUpdate( 0, 1, -1, $pageCountChange );
3118 } elseif ( !$this->isContentPage() && $nt->isContentPage() ) {
3119 # Now a content page
3120 # Not viewed, edited, adding
3121 $u = new SiteStatsUpdate( 0, 1, +
1, $pageCountChange );
3122 } elseif ( $pageCountChange ) {
3124 $u = new SiteStatsUpdate( 0, 0, 0, 1 );
3132 # Update message cache for interface messages
3133 global $wgMessageCache;
3134 if ( $this->getNamespace() == NS_MEDIAWIKI
) {
3135 # @bug 17860: old article can be deleted, if this the case,
3136 # delete it from message cache
3137 if ( $this->getArticleID() === 0 ) {
3138 $wgMessageCache->replace( $this->getDBkey(), false );
3140 $oldarticle = new Article( $this );
3141 $wgMessageCache->replace( $this->getDBkey(), $oldarticle->getContent() );
3144 if ( $nt->getNamespace() == NS_MEDIAWIKI
) {
3145 $newarticle = new Article( $nt );
3146 $wgMessageCache->replace( $nt->getDBkey(), $newarticle->getContent() );
3150 wfRunHooks( 'TitleMoveComplete', array( &$this, &$nt, &$wgUser, $pageid, $redirid ) );
3155 * Move page to a title which is at present a redirect to the
3158 * @param $nt \type{Title} the page to move to, which should currently
3160 * @param $reason \type{\string} The reason for the move
3161 * @param $createRedirect \type{\bool} Whether to leave a redirect at the old title.
3162 * Ignored if the user doesn't have the suppressredirect right
3164 private function moveOverExistingRedirect( &$nt, $reason = '', $createRedirect = true ) {
3165 global $wgUseSquid, $wgUser, $wgContLang;
3167 $comment = wfMsgForContent( '1movedto2_redir', $this->getPrefixedText(), $nt->getPrefixedText() );
3170 $comment .= wfMsgForContent( 'colon-separator' ) . $reason;
3172 # Truncate for whole multibyte characters. +5 bytes for ellipsis
3173 $comment = $wgContLang->truncate( $comment, 250 );
3175 $now = wfTimestampNow();
3176 $newid = $nt->getArticleID();
3177 $oldid = $this->getArticleID();
3178 $latest = $this->getLatestRevID();
3180 $dbw = wfGetDB( DB_MASTER
);
3182 $rcts = $dbw->timestamp( $nt->getEarliestRevTime() );
3183 $newns = $nt->getNamespace();
3184 $newdbk = $nt->getDBkey();
3186 # Delete the old redirect. We don't save it to history since
3187 # by definition if we've got here it's rather uninteresting.
3188 # We have to remove it so that the next step doesn't trigger
3189 # a conflict on the unique namespace+title index...
3190 $dbw->delete( 'page', array( 'page_id' => $newid ), __METHOD__
);
3191 if ( !$dbw->cascadingDeletes() ) {
3192 $dbw->delete( 'revision', array( 'rev_page' => $newid ), __METHOD__
);
3193 global $wgUseTrackbacks;
3194 if ( $wgUseTrackbacks ) {
3195 $dbw->delete( 'trackbacks', array( 'tb_page' => $newid ), __METHOD__
);
3197 $dbw->delete( 'pagelinks', array( 'pl_from' => $newid ), __METHOD__
);
3198 $dbw->delete( 'imagelinks', array( 'il_from' => $newid ), __METHOD__
);
3199 $dbw->delete( 'categorylinks', array( 'cl_from' => $newid ), __METHOD__
);
3200 $dbw->delete( 'templatelinks', array( 'tl_from' => $newid ), __METHOD__
);
3201 $dbw->delete( 'externallinks', array( 'el_from' => $newid ), __METHOD__
);
3202 $dbw->delete( 'langlinks', array( 'll_from' => $newid ), __METHOD__
);
3203 $dbw->delete( 'redirect', array( 'rd_from' => $newid ), __METHOD__
);
3205 // If the redirect was recently created, it may have an entry in recentchanges still
3206 $dbw->delete( 'recentchanges',
3207 array( 'rc_timestamp' => $rcts, 'rc_namespace' => $newns, 'rc_title' => $newdbk, 'rc_new' => 1 ),
3211 # Save a null revision in the page's history notifying of the move
3212 $nullRevision = Revision
::newNullRevision( $dbw, $oldid, $comment, true );
3213 $nullRevId = $nullRevision->insertOn( $dbw );
3215 $article = new Article( $this );
3216 wfRunHooks( 'NewRevisionFromEditComplete', array( $article, $nullRevision, $latest, $wgUser ) );
3218 # Change the name of the target page:
3219 $dbw->update( 'page',
3221 'page_touched' => $dbw->timestamp( $now ),
3222 'page_namespace' => $nt->getNamespace(),
3223 'page_title' => $nt->getDBkey(),
3224 'page_latest' => $nullRevId,
3226 /* WHERE */ array( 'page_id' => $oldid ),
3229 $nt->resetArticleID( $oldid );
3231 # Recreate the redirect, this time in the other direction.
3232 if ( $createRedirect ||
!$wgUser->isAllowed( 'suppressredirect' ) ) {
3233 $mwRedir = MagicWord
::get( 'redirect' );
3234 $redirectText = $mwRedir->getSynonym( 0 ) . ' [[' . $nt->getPrefixedText() . "]]\n";
3235 $redirectArticle = new Article( $this );
3236 $newid = $redirectArticle->insertOn( $dbw );
3237 $redirectRevision = new Revision( array(
3239 'comment' => $comment,
3240 'text' => $redirectText ) );
3241 $redirectRevision->insertOn( $dbw );
3242 $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
3244 wfRunHooks( 'NewRevisionFromEditComplete', array( $redirectArticle, $redirectRevision, false, $wgUser ) );
3246 # Now, we record the link from the redirect to the new title.
3247 # It should have no other outgoing links...
3248 $dbw->delete( 'pagelinks', array( 'pl_from' => $newid ), __METHOD__
);
3249 $dbw->insert( 'pagelinks',
3251 'pl_from' => $newid,
3252 'pl_namespace' => $nt->getNamespace(),
3253 'pl_title' => $nt->getDBkey() ),
3255 $redirectSuppressed = false;
3257 $this->resetArticleID( 0 );
3258 $redirectSuppressed = true;
3262 $log = new LogPage( 'move' );
3263 $log->addEntry( 'move_redir', $this, $reason, array( 1 => $nt->getPrefixedText(), 2 => $redirectSuppressed ) );
3266 if ( $wgUseSquid ) {
3267 $urls = array_merge( $nt->getSquidURLs(), $this->getSquidURLs() );
3268 $u = new SquidUpdate( $urls );
3275 * Move page to non-existing title.
3277 * @param $nt \type{Title} the new Title
3278 * @param $reason \type{\string} The reason for the move
3279 * @param $createRedirect \type{\bool} Whether to create a redirect from the old title to the new title
3280 * Ignored if the user doesn't have the suppressredirect right
3282 private function moveToNewTitle( &$nt, $reason = '', $createRedirect = true ) {
3283 global $wgUser, $wgContLang;
3285 $comment = wfMsgForContent( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() );
3287 $comment .= wfMsgExt( 'colon-separator',
3288 array( 'escapenoentities', 'content' ) );
3289 $comment .= $reason;
3291 # Truncate for whole multibyte characters. +5 bytes for ellipsis
3292 $comment = $wgContLang->truncate( $comment, 250 );
3294 $newid = $nt->getArticleID();
3295 $oldid = $this->getArticleID();
3296 $latest = $this->getLatestRevId();
3298 $dbw = wfGetDB( DB_MASTER
);
3299 $now = $dbw->timestamp();
3301 # Save a null revision in the page's history notifying of the move
3302 $nullRevision = Revision
::newNullRevision( $dbw, $oldid, $comment, true );
3303 if ( !is_object( $nullRevision ) ) {
3304 throw new MWException( 'No valid null revision produced in ' . __METHOD__
);
3306 $nullRevId = $nullRevision->insertOn( $dbw );
3308 $article = new Article( $this );
3309 wfRunHooks( 'NewRevisionFromEditComplete', array( $article, $nullRevision, $latest, $wgUser ) );
3312 $dbw->update( 'page',
3314 'page_touched' => $now,
3315 'page_namespace' => $nt->getNamespace(),
3316 'page_title' => $nt->getDBkey(),
3317 'page_latest' => $nullRevId,
3319 /* WHERE */ array( 'page_id' => $oldid ),
3322 $nt->resetArticleID( $oldid );
3324 if ( $createRedirect ||
!$wgUser->isAllowed( 'suppressredirect' ) ) {
3326 $mwRedir = MagicWord
::get( 'redirect' );
3327 $redirectText = $mwRedir->getSynonym( 0 ) . ' [[' . $nt->getPrefixedText() . "]]\n";
3328 $redirectArticle = new Article( $this );
3329 $newid = $redirectArticle->insertOn( $dbw );
3330 $redirectRevision = new Revision( array(
3332 'comment' => $comment,
3333 'text' => $redirectText ) );
3334 $redirectRevision->insertOn( $dbw );
3335 $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
3337 wfRunHooks( 'NewRevisionFromEditComplete', array( $redirectArticle, $redirectRevision, false, $wgUser ) );
3339 # Record the just-created redirect's linking to the page
3340 $dbw->insert( 'pagelinks',
3342 'pl_from' => $newid,
3343 'pl_namespace' => $nt->getNamespace(),
3344 'pl_title' => $nt->getDBkey() ),
3346 $redirectSuppressed = false;
3348 $this->resetArticleID( 0 );
3349 $redirectSuppressed = true;
3353 $log = new LogPage( 'move' );
3354 $log->addEntry( 'move', $this, $reason, array( 1 => $nt->getPrefixedText(), 2 => $redirectSuppressed ) );
3356 # Purge caches as per article creation
3357 Article
::onArticleCreate( $nt );
3359 # Purge old title from squid
3360 # The new title, and links to the new title, are purged in Article::onArticleCreate()
3361 $this->purgeSquid();
3365 * Move this page's subpages to be subpages of $nt
3367 * @param $nt Title Move target
3368 * @param $auth bool Whether $wgUser's permissions should be checked
3369 * @param $reason string The reason for the move
3370 * @param $createRedirect bool Whether to create redirects from the old subpages to the new ones
3371 * Ignored if the user doesn't have the 'suppressredirect' right
3372 * @return mixed array with old page titles as keys, and strings (new page titles) or
3373 * arrays (errors) as values, or an error array with numeric indices if no pages were moved
3375 public function moveSubpages( $nt, $auth = true, $reason = '', $createRedirect = true ) {
3376 global $wgMaximumMovedPages;
3377 // Check permissions
3378 if ( !$this->userCan( 'move-subpages' ) ) {
3379 return array( 'cant-move-subpages' );
3381 // Do the source and target namespaces support subpages?
3382 if ( !MWNamespace
::hasSubpages( $this->getNamespace() ) ) {
3383 return array( 'namespace-nosubpages',
3384 MWNamespace
::getCanonicalName( $this->getNamespace() ) );
3386 if ( !MWNamespace
::hasSubpages( $nt->getNamespace() ) ) {
3387 return array( 'namespace-nosubpages',
3388 MWNamespace
::getCanonicalName( $nt->getNamespace() ) );
3391 $subpages = $this->getSubpages( $wgMaximumMovedPages +
1 );
3394 foreach ( $subpages as $oldSubpage ) {
3396 if ( $count > $wgMaximumMovedPages ) {
3397 $retval[$oldSubpage->getPrefixedTitle()] =
3398 array( 'movepage-max-pages',
3399 $wgMaximumMovedPages );
3403 // We don't know whether this function was called before
3404 // or after moving the root page, so check both
3406 if ( $oldSubpage->getArticleId() == $this->getArticleId() ||
3407 $oldSubpage->getArticleID() == $nt->getArticleId() )
3409 // When moving a page to a subpage of itself,
3410 // don't move it twice
3413 $newPageName = preg_replace(
3414 '#^' . preg_quote( $this->getDBkey(), '#' ) . '#',
3415 StringUtils
::escapeRegexReplacement( $nt->getDBkey() ), # bug 21234
3416 $oldSubpage->getDBkey() );
3417 if ( $oldSubpage->isTalkPage() ) {
3418 $newNs = $nt->getTalkPage()->getNamespace();
3420 $newNs = $nt->getSubjectPage()->getNamespace();
3422 # Bug 14385: we need makeTitleSafe because the new page names may
3423 # be longer than 255 characters.
3424 $newSubpage = Title
::makeTitleSafe( $newNs, $newPageName );
3426 $success = $oldSubpage->moveTo( $newSubpage, $auth, $reason, $createRedirect );
3427 if ( $success === true ) {
3428 $retval[$oldSubpage->getPrefixedText()] = $newSubpage->getPrefixedText();
3430 $retval[$oldSubpage->getPrefixedText()] = $success;
3437 * Checks if this page is just a one-rev redirect.
3438 * Adds lock, so don't use just for light purposes.
3440 * @return \type{\bool}
3442 public function isSingleRevRedirect() {
3443 $dbw = wfGetDB( DB_MASTER
);
3445 $row = $dbw->selectRow( 'page',
3446 array( 'page_is_redirect', 'page_latest', 'page_id' ),
3449 array( 'FOR UPDATE' )
3451 # Cache some fields we may want
3452 $this->mArticleID
= $row ?
intval( $row->page_id
) : 0;
3453 $this->mRedirect
= $row ?
(bool)$row->page_is_redirect
: false;
3454 $this->mLatestID
= $row ?
intval( $row->page_latest
) : false;
3455 if ( !$this->mRedirect
) {
3458 # Does the article have a history?
3459 $row = $dbw->selectField( array( 'page', 'revision' ),
3461 array( 'page_namespace' => $this->getNamespace(),
3462 'page_title' => $this->getDBkey(),
3464 'page_latest != rev_id'
3467 array( 'FOR UPDATE' )
3469 # Return true if there was no history
3470 return ( $row === false );
3474 * Checks if $this can be moved to a given Title
3475 * - Selects for update, so don't call it unless you mean business
3477 * @param $nt \type{Title} the new title to check
3478 * @return \type{\bool} TRUE or FALSE
3480 public function isValidMoveTarget( $nt ) {
3481 # Is it an existing file?
3482 if ( $nt->getNamespace() == NS_FILE
) {
3483 $file = wfLocalFile( $nt );
3484 if ( $file->exists() ) {
3485 wfDebug( __METHOD__
. ": file exists\n" );
3489 # Is it a redirect with no history?
3490 if ( !$nt->isSingleRevRedirect() ) {
3491 wfDebug( __METHOD__
. ": not a one-rev redirect\n" );
3494 # Get the article text
3495 $rev = Revision
::newFromTitle( $nt );
3496 $text = $rev->getText();
3497 # Does the redirect point to the source?
3498 # Or is it a broken self-redirect, usually caused by namespace collisions?
3500 if ( preg_match( "/\\[\\[\\s*([^\\]\\|]*)]]/", $text, $m ) ) {
3501 $redirTitle = Title
::newFromText( $m[1] );
3502 if ( !is_object( $redirTitle ) ||
3503 ( $redirTitle->getPrefixedDBkey() != $this->getPrefixedDBkey() &&
3504 $redirTitle->getPrefixedDBkey() != $nt->getPrefixedDBkey() ) ) {
3505 wfDebug( __METHOD__
. ": redirect points to other page\n" );
3510 wfDebug( __METHOD__
. ": failsafe\n" );
3517 * Can this title be added to a user's watchlist?
3519 * @return \type{\bool} TRUE or FALSE
3521 public function isWatchable() {
3522 return !$this->isExternal() && MWNamespace
::isWatchable( $this->getNamespace() );
3526 * Get categories to which this Title belongs and return an array of
3527 * categories' names.
3529 * @return \type{\array} array an array of parents in the form:
3530 * $parent => $currentarticle
3532 public function getParentCategories() {
3535 $titlekey = $this->getArticleId();
3536 $dbr = wfGetDB( DB_SLAVE
);
3537 $categorylinks = $dbr->tableName( 'categorylinks' );
3540 $sql = "SELECT * FROM $categorylinks"
3541 . " WHERE cl_from='$titlekey'"
3542 . " AND cl_from <> '0'"
3543 . " ORDER BY cl_sortkey";
3545 $res = $dbr->query( $sql );
3548 if ( $dbr->numRows( $res ) > 0 ) {
3549 foreach ( $res as $row ) {
3550 // $data[] = Title::newFromText($wgContLang->getNSText ( NS_CATEGORY ).':'.$row->cl_to);
3551 $data[$wgContLang->getNSText( NS_CATEGORY
) . ':' . $row->cl_to
] = $this->getFullText();
3558 * Get a tree of parent categories
3560 * @param $children \type{\array} an array with the children in the keys, to check for circular refs
3561 * @return \type{\array} Tree of parent categories
3563 public function getParentCategoryTree( $children = array() ) {
3565 $parents = $this->getParentCategories();
3568 foreach ( $parents as $parent => $current ) {
3569 if ( array_key_exists( $parent, $children ) ) {
3570 # Circular reference
3571 $stack[$parent] = array();
3573 $nt = Title
::newFromText( $parent );
3575 $stack[$parent] = $nt->getParentCategoryTree( $children +
array( $parent => 1 ) );
3586 * Get an associative array for selecting this title from
3589 * @return \type{\array} Selection array
3591 public function pageCond() {
3592 if ( $this->mArticleID
> 0 ) {
3593 // PK avoids secondary lookups in InnoDB, shouldn't hurt other DBs
3594 return array( 'page_id' => $this->mArticleID
);
3596 return array( 'page_namespace' => $this->mNamespace
, 'page_title' => $this->mDbkeyform
);
3601 * Get the revision ID of the previous revision
3603 * @param $revId \type{\int} Revision ID. Get the revision that was before this one.
3604 * @param $flags \type{\int} Title::GAID_FOR_UPDATE
3605 * @return \twotypes{\int,\bool} Old revision ID, or FALSE if none exists
3607 public function getPreviousRevisionID( $revId, $flags = 0 ) {
3608 $db = ( $flags & self
::GAID_FOR_UPDATE
) ?
wfGetDB( DB_MASTER
) : wfGetDB( DB_SLAVE
);
3609 return $db->selectField( 'revision', 'rev_id',
3611 'rev_page' => $this->getArticleId( $flags ),
3612 'rev_id < ' . intval( $revId )
3615 array( 'ORDER BY' => 'rev_id DESC' )
3620 * Get the revision ID of the next revision
3622 * @param $revId \type{\int} Revision ID. Get the revision that was after this one.
3623 * @param $flags \type{\int} Title::GAID_FOR_UPDATE
3624 * @return \twotypes{\int,\bool} Next revision ID, or FALSE if none exists
3626 public function getNextRevisionID( $revId, $flags = 0 ) {
3627 $db = ( $flags & self
::GAID_FOR_UPDATE
) ?
wfGetDB( DB_MASTER
) : wfGetDB( DB_SLAVE
);
3628 return $db->selectField( 'revision', 'rev_id',
3630 'rev_page' => $this->getArticleId( $flags ),
3631 'rev_id > ' . intval( $revId )
3634 array( 'ORDER BY' => 'rev_id' )
3639 * Get the first revision of the page
3641 * @param $flags \type{\int} Title::GAID_FOR_UPDATE
3642 * @return Revision (or NULL if page doesn't exist)
3644 public function getFirstRevision( $flags = 0 ) {
3645 $db = ( $flags & self
::GAID_FOR_UPDATE
) ?
wfGetDB( DB_MASTER
) : wfGetDB( DB_SLAVE
);
3646 $pageId = $this->getArticleId( $flags );
3650 $row = $db->selectRow( 'revision', '*',
3651 array( 'rev_page' => $pageId ),
3653 array( 'ORDER BY' => 'rev_timestamp ASC', 'LIMIT' => 1 )
3658 return new Revision( $row );
3663 * Check if this is a new page
3667 public function isNewPage() {
3668 $dbr = wfGetDB( DB_SLAVE
);
3669 return (bool)$dbr->selectField( 'page', 'page_is_new', $this->pageCond(), __METHOD__
);
3673 * Get the oldest revision timestamp of this page
3675 * @return String: MW timestamp
3677 public function getEarliestRevTime() {
3678 $dbr = wfGetDB( DB_SLAVE
);
3679 if ( $this->exists() ) {
3680 $min = $dbr->selectField( 'revision',
3681 'MIN(rev_timestamp)',
3682 array( 'rev_page' => $this->getArticleId() ),
3684 return wfTimestampOrNull( TS_MW
, $min );
3690 * Get the number of revisions between the given revision IDs.
3691 * Used for diffs and other things that really need it.
3693 * @param $old \type{\int} Revision ID.
3694 * @param $new \type{\int} Revision ID.
3695 * @return \type{\int} Number of revisions between these IDs.
3697 public function countRevisionsBetween( $old, $new ) {
3698 $dbr = wfGetDB( DB_SLAVE
);
3699 return (int)$dbr->selectField( 'revision', 'count(*)',
3700 'rev_page = ' . intval( $this->getArticleId() ) .
3701 ' AND rev_id > ' . intval( $old ) .
3702 ' AND rev_id < ' . intval( $new ),
3708 * Compare with another title.
3710 * @param $title \type{Title}
3711 * @return \type{\bool} TRUE or FALSE
3713 public function equals( Title
$title ) {
3714 // Note: === is necessary for proper matching of number-like titles.
3715 return $this->getInterwiki() === $title->getInterwiki()
3716 && $this->getNamespace() == $title->getNamespace()
3717 && $this->getDBkey() === $title->getDBkey();
3721 * Callback for usort() to do title sorts by (namespace, title)
3723 * @return Integer: result of string comparison, or namespace comparison
3725 public static function compare( $a, $b ) {
3726 if ( $a->getNamespace() == $b->getNamespace() ) {
3727 return strcmp( $a->getText(), $b->getText() );
3729 return $a->getNamespace() - $b->getNamespace();
3734 * Return a string representation of this title
3736 * @return \type{\string} String representation of this title
3738 public function __toString() {
3739 return $this->getPrefixedText();
3743 * Check if page exists. For historical reasons, this function simply
3744 * checks for the existence of the title in the page table, and will
3745 * thus return false for interwiki links, special pages and the like.
3746 * If you want to know if a title can be meaningfully viewed, you should
3747 * probably call the isKnown() method instead.
3749 * @return \type{\bool}
3751 public function exists() {
3752 return $this->getArticleId() != 0;
3756 * Should links to this title be shown as potentially viewable (i.e. as
3757 * "bluelinks"), even if there's no record by this title in the page
3760 * This function is semi-deprecated for public use, as well as somewhat
3761 * misleadingly named. You probably just want to call isKnown(), which
3762 * calls this function internally.
3764 * (ISSUE: Most of these checks are cheap, but the file existence check
3765 * can potentially be quite expensive. Including it here fixes a lot of
3766 * existing code, but we might want to add an optional parameter to skip
3767 * it and any other expensive checks.)
3769 * @return \type{\bool}
3771 public function isAlwaysKnown() {
3772 if ( $this->mInterwiki
!= '' ) {
3773 return true; // any interwiki link might be viewable, for all we know
3775 switch( $this->mNamespace
) {
3778 return (bool)wfFindFile( $this ); // file exists, possibly in a foreign repo
3780 return SpecialPage
::exists( $this->getDBkey() ); // valid special page
3782 return $this->mDbkeyform
== ''; // selflink, possibly with fragment
3784 // If the page is form Mediawiki:message/lang, calling wfMsgWeirdKey causes
3785 // the full l10n of that language to be loaded. That takes much memory and
3786 // isn't needed. So we strip the language part away.
3787 list( $basename, /* rest */ ) = explode( '/', $this->mDbkeyform
, 2 );
3788 return (bool)wfMsgWeirdKey( $basename ); // known system message
3795 * Does this title refer to a page that can (or might) be meaningfully
3796 * viewed? In particular, this function may be used to determine if
3797 * links to the title should be rendered as "bluelinks" (as opposed to
3798 * "redlinks" to non-existent pages).
3800 * @return \type{\bool}
3802 public function isKnown() {
3803 return $this->isAlwaysKnown() ||
$this->exists();
3807 * Does this page have source text?
3811 public function hasSourceText() {
3812 if ( $this->exists() ) {
3816 if ( $this->mNamespace
== NS_MEDIAWIKI
) {
3817 // If the page doesn't exist but is a known system message, default
3818 // message content will be displayed, same for language subpages
3819 // Also, if the page is form Mediawiki:message/lang, calling wfMsgWeirdKey
3820 // causes the full l10n of that language to be loaded. That takes much
3821 // memory and isn't needed. So we strip the language part away.
3822 list( $basename, /* rest */ ) = explode( '/', $this->mDbkeyform
, 2 );
3823 return (bool)wfMsgWeirdKey( $basename );
3830 * Is this in a namespace that allows actual pages?
3832 * @return \type{\bool}
3833 * @internal note -- uses hardcoded namespace index instead of constants
3835 public function canExist() {
3836 return $this->mNamespace
>= 0 && $this->mNamespace
!= NS_MEDIA
;
3840 * Update page_touched timestamps and send squid purge messages for
3841 * pages linking to this title. May be sent to the job queue depending
3842 * on the number of links. Typically called on create and delete.
3844 public function touchLinks() {
3845 $u = new HTMLCacheUpdate( $this, 'pagelinks' );
3848 if ( $this->getNamespace() == NS_CATEGORY
) {
3849 $u = new HTMLCacheUpdate( $this, 'categorylinks' );
3855 * Get the last touched timestamp
3857 * @param $db DatabaseBase: optional db
3858 * @return \type{\string} Last touched timestamp
3860 public function getTouched( $db = null ) {
3861 $db = isset( $db ) ?
$db : wfGetDB( DB_SLAVE
);
3862 $touched = $db->selectField( 'page', 'page_touched', $this->pageCond(), __METHOD__
);
3867 * Get the timestamp when this page was updated since the user last saw it.
3870 * @return Mixed: string/null
3872 public function getNotificationTimestamp( $user = null ) {
3873 global $wgUser, $wgShowUpdatedMarker;
3874 // Assume current user if none given
3878 // Check cache first
3879 $uid = $user->getId();
3880 if ( isset( $this->mNotificationTimestamp
[$uid] ) ) {
3881 return $this->mNotificationTimestamp
[$uid];
3883 if ( !$uid ||
!$wgShowUpdatedMarker ) {
3884 return $this->mNotificationTimestamp
[$uid] = false;
3886 // Don't cache too much!
3887 if ( count( $this->mNotificationTimestamp
) >= self
::CACHE_MAX
) {
3888 $this->mNotificationTimestamp
= array();
3890 $dbr = wfGetDB( DB_SLAVE
);
3891 $this->mNotificationTimestamp
[$uid] = $dbr->selectField( 'watchlist',
3892 'wl_notificationtimestamp',
3893 array( 'wl_namespace' => $this->getNamespace(),
3894 'wl_title' => $this->getDBkey(),
3895 'wl_user' => $user->getId()
3899 return $this->mNotificationTimestamp
[$uid];
3903 * Get the trackback URL for this page
3905 * @return \type{\string} Trackback URL
3907 public function trackbackURL() {
3908 global $wgScriptPath, $wgServer, $wgScriptExtension;
3910 return "$wgServer$wgScriptPath/trackback$wgScriptExtension?article="
3911 . htmlspecialchars( urlencode( $this->getPrefixedDBkey() ) );
3915 * Get the trackback RDF for this page
3917 * @return \type{\string} Trackback RDF
3919 public function trackbackRDF() {
3920 $url = htmlspecialchars( $this->getFullURL() );
3921 $title = htmlspecialchars( $this->getText() );
3922 $tburl = $this->trackbackURL();
3924 // Autodiscovery RDF is placed in comments so HTML validator
3925 // won't barf. This is a rather icky workaround, but seems
3926 // frequently used by this kind of RDF thingy.
3928 // Spec: http://www.sixapart.com/pronet/docs/trackback_spec
3930 <rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"
3931 xmlns:dc=\"http://purl.org/dc/elements/1.1/\"
3932 xmlns:trackback=\"http://madskills.com/public/xml/rss/module/trackback/\">
3935 dc:identifier=\"$url\"
3937 trackback:ping=\"$tburl\" />
3943 * Generate strings used for xml 'id' names in monobook tabs
3945 * @param $prepend string defaults to 'nstab-'
3946 * @return \type{\string} XML 'id' name
3948 public function getNamespaceKey( $prepend = 'nstab-' ) {
3950 // Gets the subject namespace if this title
3951 $namespace = MWNamespace
::getSubject( $this->getNamespace() );
3952 // Checks if cononical namespace name exists for namespace
3953 if ( MWNamespace
::exists( $this->getNamespace() ) ) {
3954 // Uses canonical namespace name
3955 $namespaceKey = MWNamespace
::getCanonicalName( $namespace );
3957 // Uses text of namespace
3958 $namespaceKey = $this->getSubjectNsText();
3960 // Makes namespace key lowercase
3961 $namespaceKey = $wgContLang->lc( $namespaceKey );
3963 if ( $namespaceKey == '' ) {
3964 $namespaceKey = 'main';
3966 // Changes file to image for backwards compatibility
3967 if ( $namespaceKey == 'file' ) {
3968 $namespaceKey = 'image';
3970 return $prepend . $namespaceKey;
3974 * Returns true if this is a special page.
3978 public function isSpecialPage() {
3979 return $this->getNamespace() == NS_SPECIAL
;
3983 * Returns true if this title resolves to the named special page
3985 * @param $name \type{\string} The special page name
3988 public function isSpecial( $name ) {
3989 if ( $this->getNamespace() == NS_SPECIAL
) {
3990 list( $thisName, /* $subpage */ ) = SpecialPage
::resolveAliasWithSubpage( $this->getDBkey() );
3991 if ( $name == $thisName ) {
3999 * If the Title refers to a special page alias which is not the local default,
4001 * @return \type{Title} A new Title which points to the local default.
4002 * Otherwise, returns $this.
4004 public function fixSpecialName() {
4005 if ( $this->getNamespace() == NS_SPECIAL
) {
4006 $canonicalName = SpecialPage
::resolveAlias( $this->mDbkeyform
);
4007 if ( $canonicalName ) {
4008 $localName = SpecialPage
::getLocalNameFor( $canonicalName );
4009 if ( $localName != $this->mDbkeyform
) {
4010 return Title
::makeTitle( NS_SPECIAL
, $localName );
4018 * Is this Title in a namespace which contains content?
4019 * In other words, is this a content page, for the purposes of calculating
4022 * @return \type{\bool}
4024 public function isContentPage() {
4025 return MWNamespace
::isContent( $this->getNamespace() );
4029 * Get all extant redirects to this Title
4031 * @param $ns \twotypes{\int,\null} Single namespace to consider;
4032 * NULL to consider all namespaces
4033 * @return \type{\arrayof{Title}} Redirects to this title
4035 public function getRedirectsHere( $ns = null ) {
4038 $dbr = wfGetDB( DB_SLAVE
);
4040 'rd_namespace' => $this->getNamespace(),
4041 'rd_title' => $this->getDBkey(),
4044 if ( !is_null( $ns ) ) {
4045 $where['page_namespace'] = $ns;
4048 $res = $dbr->select(
4049 array( 'redirect', 'page' ),
4050 array( 'page_namespace', 'page_title' ),
4055 foreach ( $res as $row ) {
4056 $redirs[] = self
::newFromRow( $row );
4062 * Check if this Title is a valid redirect target
4064 * @return \type{\bool}
4066 public function isValidRedirectTarget() {
4067 global $wgInvalidRedirectTargets;
4069 // invalid redirect targets are stored in a global array, but explicity disallow Userlogout here
4070 if ( $this->isSpecial( 'Userlogout' ) ) {
4074 foreach ( $wgInvalidRedirectTargets as $target ) {
4075 if ( $this->isSpecial( $target ) ) {
4084 * Get a backlink cache object
4086 * @return object BacklinkCache
4088 function getBacklinkCache() {
4089 if ( is_null( $this->mBacklinkCache
) ) {
4090 $this->mBacklinkCache
= new BacklinkCache( $this );
4092 return $this->mBacklinkCache
;
4096 * Whether the magic words __INDEX__ and __NOINDEX__ function for
4101 public function canUseNoindex() {
4102 global $wgContentNamespaces, $wgExemptFromUserRobotsControl;
4104 $bannedNamespaces = is_null( $wgExemptFromUserRobotsControl )
4105 ?
$wgContentNamespaces
4106 : $wgExemptFromUserRobotsControl;
4108 return !in_array( $this->mNamespace
, $bannedNamespaces );
4113 * Returns restriction types for the current Title
4115 * @return array applicable restriction types
4117 public function getRestrictionTypes() {
4118 global $wgRestrictionTypes;
4119 $types = $this->exists() ?
$wgRestrictionTypes : array( 'create' );
4121 if ( $this->getNamespace() == NS_FILE
) {
4122 $types[] = 'upload';
4125 wfRunHooks( 'TitleGetRestrictionTypes', array( $this, &$types ) );
4131 * Returns the raw sort key to be used for categories, with the specified
4132 * prefix. This will be fed to Language::convertToSortkey() to get a
4133 * binary sortkey that can be used for actual sorting.
4135 * @param $prefix string The prefix to be used, specified using
4136 * {{defaultsort:}} or like [[Category:Foo|prefix]]. Empty for no
4140 public function getCategorySortkey( $prefix = '' ) {
4141 $unprefixed = $this->getText();
4142 if ( $prefix !== '' ) {
4143 # Separate with a null byte, so the unprefixed part is only used as
4144 # a tiebreaker when two pages have the exact same prefix -- null
4145 # sorts before everything else (hopefully).
4146 return "$prefix\0$unprefixed";