<?php
/**
+ * Representation of a title within %MediaWiki.
+ *
* See title.txt
*
- * @package MediaWiki
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
*/
-/** */
-require_once( 'normal/UtfNormal.php' );
-
-$wgTitleInterwikiCache = array();
-define ( 'GAID_FOR_UPDATE', 1 );
-
-# Title::newFromTitle maintains a cache to avoid
-# expensive re-normalization of commonly used titles.
-# On a batch operation this can become a memory leak
-# if not bounded. After hitting this many titles,
-# reset the cache.
-define( 'MW_TITLECACHE_MAX', 1000 );
+use Wikimedia\Rdbms\Database;
+use Wikimedia\Rdbms\IDatabase;
+use MediaWiki\Linker\LinkTarget;
+use MediaWiki\Interwiki\InterwikiLookup;
+use MediaWiki\MediaWikiServices;
/**
- * Title class
- * - Represents a title, which may contain an interwiki designation or namespace
- * - Can fetch various kinds of data from the database, albeit inefficiently.
- *
- * @package MediaWiki
+ * Represents a title within MediaWiki.
+ * Optionally may contain an interwiki designation or namespace.
+ * @note This class can fetch various kinds of data from the database;
+ * however, it does so inefficiently.
+ * @note Consider using a TitleValue object instead. TitleValue is more lightweight
+ * and does not rely on global state or the database.
*/
-class Title {
+class Title implements LinkTarget {
+ /** @var HashBagOStuff */
+ static private $titleCache = null;
+
/**
- * All member variables should be considered private
- * Please use the accessor functions
+ * Title::newFromText maintains a cache to avoid expensive re-normalization of
+ * commonly used titles. On a batch operation this can become a memory leak
+ * if not bounded. After hitting this many titles reset the cache.
*/
+ const CACHE_MAX = 1000;
- /**#@+
- * @access private
+ /**
+ * Used to be GAID_FOR_UPDATE define. Used with getArticleID() and friends
+ * to use the master DB
+ */
+ const GAID_FOR_UPDATE = 1;
+
+ /**
+ * @name Private member variables
+ * Please use the accessor functions instead.
+ * @private
*/
+ // @{
+
+ /** @var string Text form (spaces not underscores) of the main part */
+ public $mTextform = '';
+
+ /** @var string URL-encoded form of the main part */
+ public $mUrlform = '';
+
+ /** @var string Main part with underscores */
+ public $mDbkeyform = '';
+
+ /** @var string Database key with the initial letter in the case specified by the user */
+ protected $mUserCaseDBKey;
- var $mTextform; # Text form (spaces not underscores) of the main part
- var $mUrlform; # URL-encoded form of the main part
- var $mDbkeyform; # Main part with underscores
- var $mNamespace; # Namespace index, i.e. one of the NS_xxxx constants
- var $mInterwiki; # Interwiki prefix (or null string)
- var $mFragment; # Title fragment (i.e. the bit after the #)
- var $mArticleID; # Article ID, fetched from the link cache on demand
- var $mLatestID; # ID of most recent revision
- var $mRestrictions; # Array of groups allowed to edit this article
- # Only null or "sysop" are supported
- var $mRestrictionsLoaded; # Boolean for initialisation on demand
- var $mPrefixedText; # Text form including namespace/interwiki, initialised on demand
- var $mDefaultNamespace; # Namespace index when there is no namespace
- # Zero except in {{transclusion}} tags
- var $mWatched; # Is $wgUser watching this page? NULL if unfilled, accessed through userIsWatching()
- /**#@-*/
+ /** @var int Namespace index, i.e. one of the NS_xxxx constants */
+ public $mNamespace = NS_MAIN;
+ /** @var string Interwiki prefix */
+ public $mInterwiki = '';
+
+ /** @var bool Was this Title created from a string with a local interwiki prefix? */
+ private $mLocalInterwiki = false;
+
+ /** @var string Title fragment (i.e. the bit after the #) */
+ public $mFragment = '';
+
+ /** @var int Article ID, fetched from the link cache on demand */
+ public $mArticleID = -1;
+
+ /** @var bool|int ID of most recent revision */
+ protected $mLatestID = false;
/**
- * Constructor
- * @access private
+ * @var bool|string ID of the page's content model, i.e. one of the
+ * CONTENT_MODEL_XXX constants
*/
- /* private */ function Title() {
- $this->mInterwiki = $this->mUrlform =
- $this->mTextform = $this->mDbkeyform = '';
- $this->mArticleID = -1;
- $this->mNamespace = NS_MAIN;
- $this->mRestrictionsLoaded = false;
- $this->mRestrictions = array();
- # Dont change the following, NS_MAIN is hardcoded in several place
- # See bug #696
- $this->mDefaultNamespace = NS_MAIN;
- $this->mWatched = NULL;
- $this->mLatestID = false;
+ private $mContentModel = false;
+
+ /**
+ * @var bool If a content model was forced via setContentModel()
+ * this will be true to avoid having other code paths reset it
+ */
+ private $mForcedContentModel = false;
+
+ /** @var int Estimated number of revisions; null of not loaded */
+ private $mEstimateRevisions;
+
+ /** @var array Array of groups allowed to edit this article */
+ public $mRestrictions = [];
+
+ /** @var string|bool */
+ protected $mOldRestrictions = false;
+
+ /** @var bool Cascade restrictions on this page to included templates and images? */
+ public $mCascadeRestriction;
+
+ /** Caching the results of getCascadeProtectionSources */
+ public $mCascadingRestrictions;
+
+ /** @var array When do the restrictions on this page expire? */
+ protected $mRestrictionsExpiry = [];
+
+ /** @var bool Are cascading restrictions in effect on this page? */
+ protected $mHasCascadingRestrictions;
+
+ /** @var array Where are the cascading restrictions coming from on this page? */
+ public $mCascadeSources;
+
+ /** @var bool Boolean for initialisation on demand */
+ public $mRestrictionsLoaded = false;
+
+ /** @var string Text form including namespace/interwiki, initialised on demand */
+ protected $mPrefixedText = null;
+
+ /** @var mixed Cached value for getTitleProtection (create protection) */
+ public $mTitleProtection;
+
+ /**
+ * @var int Namespace index when there is no namespace. Don't change the
+ * following default, NS_MAIN is hardcoded in several places. See T2696.
+ * Zero except in {{transclusion}} tags.
+ */
+ public $mDefaultNamespace = NS_MAIN;
+
+ /** @var int The page length, 0 for special pages */
+ protected $mLength = -1;
+
+ /** @var null Is the article at this title a redirect? */
+ public $mRedirect = null;
+
+ /** @var array Associative array of user ID -> timestamp/false */
+ private $mNotificationTimestamp = [];
+
+ /** @var bool Whether a page has any subpages */
+ private $mHasSubpages;
+
+ /** @var bool The (string) language code of the page's language and content code. */
+ private $mPageLanguage = false;
+
+ /** @var string|bool|null The page language code from the database, null if not saved in
+ * the database or false if not loaded, yet. */
+ private $mDbPageLanguage = false;
+
+ /** @var TitleValue A corresponding TitleValue object */
+ private $mTitleValue = null;
+
+ /** @var bool Would deleting this page be a big deletion? */
+ private $mIsBigDeletion = null;
+ // @}
+
+ /**
+ * B/C kludge: provide a TitleParser for use by Title.
+ * Ideally, Title would have no methods that need this.
+ * Avoid usage of this singleton by using TitleValue
+ * and the associated services when possible.
+ *
+ * @return TitleFormatter
+ */
+ private static function getTitleFormatter() {
+ return MediaWikiServices::getInstance()->getTitleFormatter();
+ }
+
+ /**
+ * B/C kludge: provide an InterwikiLookup for use by Title.
+ * Ideally, Title would have no methods that need this.
+ * Avoid usage of this singleton by using TitleValue
+ * and the associated services when possible.
+ *
+ * @return InterwikiLookup
+ */
+ private static function getInterwikiLookup() {
+ return MediaWikiServices::getInstance()->getInterwikiLookup();
+ }
+
+ /**
+ * @access protected
+ */
+ function __construct() {
}
/**
* Create a new Title from a prefixed DB key
+ *
* @param string $key The database key, which has underscores
* instead of spaces, possibly including namespace and
* interwiki prefixes
- * @return Title the new object, or NULL on an error
- * @static
- * @access public
+ * @return Title|null Title, or null on an error
*/
- /* static */ function newFromDBkey( $key ) {
+ public static function newFromDBkey( $key ) {
$t = new Title();
$t->mDbkeyform = $key;
- if( $t->secureAndSplit() )
+
+ try {
+ $t->secureAndSplit();
return $t;
- else
- return NULL;
+ } catch ( MalformedTitleException $ex ) {
+ return null;
+ }
+ }
+
+ /**
+ * Create a new Title from a TitleValue
+ *
+ * @param TitleValue $titleValue Assumed to be safe.
+ *
+ * @return Title
+ */
+ public static function newFromTitleValue( TitleValue $titleValue ) {
+ return self::newFromLinkTarget( $titleValue );
}
/**
- * Create a new Title from text, such as what one would
- * find in a link. Decodes any HTML entities in the text.
+ * Create a new Title from a LinkTarget
+ *
+ * @param LinkTarget $linkTarget Assumed to be safe.
*
- * @param string $text the link text; spaces, prefixes,
- * and an initial ':' indicating the main namespace
- * are accepted
- * @param int $defaultNamespace the namespace to use if
- * none is specified by a prefix
- * @return Title the new object, or NULL on an error
- * @static
- * @access public
+ * @return Title
*/
- function newFromText( $text, $defaultNamespace = NS_MAIN ) {
- $fname = 'Title::newFromText';
- wfProfileIn( $fname );
+ public static function newFromLinkTarget( LinkTarget $linkTarget ) {
+ if ( $linkTarget instanceof Title ) {
+ // Special case if it's already a Title object
+ return $linkTarget;
+ }
+ return self::makeTitle(
+ $linkTarget->getNamespace(),
+ $linkTarget->getText(),
+ $linkTarget->getFragment(),
+ $linkTarget->getInterwiki()
+ );
+ }
- if( is_object( $text ) ) {
- wfDebugDieBacktrace( 'Title::newFromText given an object' );
+ /**
+ * Create a new Title from text, such as what one would find in a link. De-
+ * codes any HTML entities in the text.
+ *
+ * Title objects returned by this method are guaranteed to be valid, and
+ * thus return true from the isValid() method.
+ *
+ * @param string|int|null $text The link text; spaces, prefixes, and an
+ * initial ':' indicating the main namespace are accepted.
+ * @param int $defaultNamespace The namespace to use if none is specified
+ * by a prefix. If you want to force a specific namespace even if
+ * $text might begin with a namespace prefix, use makeTitle() or
+ * makeTitleSafe().
+ * @throws InvalidArgumentException
+ * @return Title|null Title or null on an error.
+ */
+ public static function newFromText( $text, $defaultNamespace = NS_MAIN ) {
+ // DWIM: Integers can be passed in here when page titles are used as array keys.
+ if ( $text !== null && !is_string( $text ) && !is_int( $text ) ) {
+ throw new InvalidArgumentException( '$text must be a string.' );
+ }
+ if ( $text === null ) {
+ return null;
}
- /**
- * Wiki pages often contain multiple links to the same page.
- * Title normalization and parsing can become expensive on
- * pages with many links, so we can save a little time by
- * caching them.
- *
- * In theory these are value objects and won't get changed...
- */
- static $titleCache = array();
- if( $defaultNamespace == NS_MAIN && isset( $titleCache[$text] ) ) {
- wfProfileOut( $fname );
- return $titleCache[$text];
+ try {
+ return self::newFromTextThrow( strval( $text ), $defaultNamespace );
+ } catch ( MalformedTitleException $ex ) {
+ return null;
}
+ }
- /**
- * Convert things like é ā or 〗 into real text...
- */
- $filteredText = Sanitizer::decodeCharReferences( $text );
+ /**
+ * Like Title::newFromText(), but throws MalformedTitleException when the title is invalid,
+ * rather than returning null.
+ *
+ * The exception subclasses encode detailed information about why the title is invalid.
+ *
+ * Title objects returned by this method are guaranteed to be valid, and
+ * thus return true from the isValid() method.
+ *
+ * @see Title::newFromText
+ *
+ * @since 1.25
+ * @param string $text Title text to check
+ * @param int $defaultNamespace
+ * @throws MalformedTitleException If the title is invalid
+ * @return Title
+ */
+ public static function newFromTextThrow( $text, $defaultNamespace = NS_MAIN ) {
+ if ( is_object( $text ) ) {
+ throw new MWException( '$text must be a string, given an object' );
+ }
- $t =& new Title();
- $t->mDbkeyform = str_replace( ' ', '_', $filteredText );
- $t->mDefaultNamespace = $defaultNamespace;
+ $titleCache = self::getTitleCache();
- if( $t->secureAndSplit() ) {
- if( $defaultNamespace == NS_MAIN ) {
- if( count( $titleCache ) >= MW_TITLECACHE_MAX ) {
- # Avoid memory leaks on mass operations...
- $titleCache = array();
- }
- $titleCache[$text] =& $t;
+ // Wiki pages often contain multiple links to the same page.
+ // Title normalization and parsing can become expensive on pages with many
+ // links, so we can save a little time by caching them.
+ // In theory these are value objects and won't get changed...
+ if ( $defaultNamespace == NS_MAIN ) {
+ $t = $titleCache->get( $text );
+ if ( $t ) {
+ return $t;
}
- wfProfileOut( $fname );
- return $t;
- } else {
- wfProfileOut( $fname );
- return NULL;
}
+
+ // Convert things like é ā or 〗 into normalized (T16952) text
+ $filteredText = Sanitizer::decodeCharReferencesAndNormalize( $text );
+
+ $t = new Title();
+ $t->mDbkeyform = strtr( $filteredText, ' ', '_' );
+ $t->mDefaultNamespace = intval( $defaultNamespace );
+
+ $t->secureAndSplit();
+ if ( $defaultNamespace == NS_MAIN ) {
+ $titleCache->set( $text, $t );
+ }
+ return $t;
}
/**
+ * THIS IS NOT THE FUNCTION YOU WANT. Use Title::newFromText().
+ *
+ * Example of wrong and broken code:
+ * $title = Title::newFromURL( $wgRequest->getVal( 'title' ) );
+ *
+ * Example of right code:
+ * $title = Title::newFromText( $wgRequest->getVal( 'title' ) );
+ *
* Create a new Title from URL-encoded text. Ensures that
* the given title's length does not exceed the maximum.
- * @param string $url the title, as might be taken from a URL
- * @return Title the new object, or NULL on an error
- * @static
- * @access public
+ *
+ * @param string $url The title, as might be taken from a URL
+ * @return Title|null The new object, or null on an error
*/
- function newFromURL( $url ) {
- global $wgLang, $wgServer;
+ public static function newFromURL( $url ) {
$t = new Title();
- # For compatibility with old buggy URLs. "+" is not valid in titles,
+ # For compatibility with old buggy URLs. "+" is usually not valid in titles,
# but some URLs used it as a space replacement and they still come
# from some external search tools.
- $s = str_replace( '+', ' ', $url );
+ if ( strpos( self::legalChars(), '+' ) === false ) {
+ $url = strtr( $url, '+', ' ' );
+ }
+
+ $t->mDbkeyform = strtr( $url, ' ', '_' );
- $t->mDbkeyform = str_replace( ' ', '_', $s );
- if( $t->secureAndSplit() ) {
+ try {
+ $t->secureAndSplit();
return $t;
- } else {
- return NULL;
+ } catch ( MalformedTitleException $ex ) {
+ return null;
}
}
/**
- * Create a new Title from an article ID
+ * @return HashBagOStuff
+ */
+ private static function getTitleCache() {
+ if ( self::$titleCache == null ) {
+ self::$titleCache = new HashBagOStuff( [ 'maxKeys' => self::CACHE_MAX ] );
+ }
+ return self::$titleCache;
+ }
+
+ /**
+ * Returns a list of fields that are to be selected for initializing Title
+ * objects or LinkCache entries. Uses $wgContentHandlerUseDB to determine
+ * whether to include page_content_model.
*
- * @todo This is inefficiently implemented, the page row is requested
- * but not used for anything else
+ * @return array
+ */
+ protected static function getSelectFields() {
+ global $wgContentHandlerUseDB, $wgPageLanguageUseDB;
+
+ $fields = [
+ 'page_namespace', 'page_title', 'page_id',
+ 'page_len', 'page_is_redirect', 'page_latest',
+ ];
+
+ if ( $wgContentHandlerUseDB ) {
+ $fields[] = 'page_content_model';
+ }
+
+ if ( $wgPageLanguageUseDB ) {
+ $fields[] = 'page_lang';
+ }
+
+ return $fields;
+ }
+
+ /**
+ * Create a new Title from an article ID
*
- * @param int $id the page_id corresponding to the Title to create
- * @return Title the new object, or NULL on an error
- * @access public
- * @static
+ * @param int $id The page_id corresponding to the Title to create
+ * @param int $flags Use Title::GAID_FOR_UPDATE to use master
+ * @return Title|null The new object, or null on an error
*/
- function newFromID( $id ) {
- $fname = 'Title::newFromID';
- $dbr =& wfGetDB( DB_SLAVE );
- $row = $dbr->selectRow( 'page', array( 'page_namespace', 'page_title' ),
- array( 'page_id' => $id ), $fname );
+ public static function newFromID( $id, $flags = 0 ) {
+ $db = ( $flags & self::GAID_FOR_UPDATE ) ? wfGetDB( DB_MASTER ) : wfGetDB( DB_REPLICA );
+ $row = $db->selectRow(
+ 'page',
+ self::getSelectFields(),
+ [ 'page_id' => $id ],
+ __METHOD__
+ );
if ( $row !== false ) {
- $title = Title::makeTitle( $row->page_namespace, $row->page_title );
+ $title = self::newFromRow( $row );
} else {
- $title = NULL;
+ $title = null;
}
return $title;
}
+ /**
+ * Make an array of titles from an array of IDs
+ *
+ * @param int[] $ids Array of IDs
+ * @return Title[] Array of Titles
+ */
+ public static function newFromIDs( $ids ) {
+ if ( !count( $ids ) ) {
+ return [];
+ }
+ $dbr = wfGetDB( DB_REPLICA );
+
+ $res = $dbr->select(
+ 'page',
+ self::getSelectFields(),
+ [ 'page_id' => $ids ],
+ __METHOD__
+ );
+
+ $titles = [];
+ foreach ( $res as $row ) {
+ $titles[] = self::newFromRow( $row );
+ }
+ return $titles;
+ }
+
+ /**
+ * Make a Title object from a DB row
+ *
+ * @param stdClass $row Object database row (needs at least page_title,page_namespace)
+ * @return Title Corresponding Title
+ */
+ public static function newFromRow( $row ) {
+ $t = self::makeTitle( $row->page_namespace, $row->page_title );
+ $t->loadFromRow( $row );
+ return $t;
+ }
+
+ /**
+ * Load Title object fields from a DB row.
+ * If false is given, the title will be treated as non-existing.
+ *
+ * @param stdClass|bool $row Database row
+ */
+ public function loadFromRow( $row ) {
+ if ( $row ) { // page found
+ if ( isset( $row->page_id ) ) {
+ $this->mArticleID = (int)$row->page_id;
+ }
+ if ( isset( $row->page_len ) ) {
+ $this->mLength = (int)$row->page_len;
+ }
+ if ( isset( $row->page_is_redirect ) ) {
+ $this->mRedirect = (bool)$row->page_is_redirect;
+ }
+ if ( isset( $row->page_latest ) ) {
+ $this->mLatestID = (int)$row->page_latest;
+ }
+ if ( !$this->mForcedContentModel && isset( $row->page_content_model ) ) {
+ $this->mContentModel = strval( $row->page_content_model );
+ } elseif ( !$this->mForcedContentModel ) {
+ $this->mContentModel = false; # initialized lazily in getContentModel()
+ }
+ if ( isset( $row->page_lang ) ) {
+ $this->mDbPageLanguage = (string)$row->page_lang;
+ }
+ if ( isset( $row->page_restrictions ) ) {
+ $this->mOldRestrictions = $row->page_restrictions;
+ }
+ } else { // page not found
+ $this->mArticleID = 0;
+ $this->mLength = 0;
+ $this->mRedirect = false;
+ $this->mLatestID = 0;
+ if ( !$this->mForcedContentModel ) {
+ $this->mContentModel = false; # initialized lazily in getContentModel()
+ }
+ }
+ }
+
/**
* Create a new Title from a namespace index and a DB key.
- * It's assumed that $ns and $title are *valid*, for instance when
- * they came directly from the database or a special page name.
- * For convenience, spaces are converted to underscores so that
- * eg user_text fields can be used directly.
- *
- * @param int $ns the namespace of the article
- * @param string $title the unprefixed database key form
- * @return Title the new object
- * @static
- * @access public
- */
- function &makeTitle( $ns, $title ) {
- $t =& new Title();
- $t->mInterwiki = '';
- $t->mFragment = '';
- $t->mNamespace = IntVal( $ns );
- $t->mDbkeyform = str_replace( ' ', '_', $title );
+ *
+ * It's assumed that $ns and $title are safe, for instance when
+ * they came directly from the database or a special page name,
+ * not from user input.
+ *
+ * No validation is applied. For convenience, spaces are normalized
+ * to underscores, so that e.g. user_text fields can be used directly.
+ *
+ * @note This method may return Title objects that are "invalid"
+ * according to the isValid() method. This is usually caused by
+ * configuration changes: e.g. a namespace that was once defined is
+ * no longer configured, or a character that was once allowed in
+ * titles is now forbidden.
+ *
+ * @param int $ns The namespace of the article
+ * @param string $title The unprefixed database key form
+ * @param string $fragment The link fragment (after the "#")
+ * @param string $interwiki The interwiki prefix
+ * @return Title The new object
+ */
+ public static function makeTitle( $ns, $title, $fragment = '', $interwiki = '' ) {
+ $t = new Title();
+ $t->mInterwiki = $interwiki;
+ $t->mFragment = $fragment;
+ $t->mNamespace = $ns = intval( $ns );
+ $t->mDbkeyform = strtr( $title, ' ', '_' );
$t->mArticleID = ( $ns >= 0 ) ? -1 : 0;
$t->mUrlform = wfUrlencode( $t->mDbkeyform );
- $t->mTextform = str_replace( '_', ' ', $title );
+ $t->mTextform = strtr( $title, '_', ' ' );
+ $t->mContentModel = false; # initialized lazily in getContentModel()
return $t;
}
/**
- * Create a new Title frrom a namespace index and a DB key.
+ * Create a new Title from a namespace index and a DB key.
* The parameters will be checked for validity, which is a bit slower
* than makeTitle() but safer for user-provided data.
*
- * @param int $ns the namespace of the article
- * @param string $title the database key form
- * @return Title the new object, or NULL on an error
- * @static
- * @access public
+ * Title objects returned by makeTitleSafe() are guaranteed to be valid,
+ * that is, they return true from the isValid() method. If no valid Title
+ * can be constructed from the input, this method returns null.
+ *
+ * @param int $ns The namespace of the article
+ * @param string $title Database key form
+ * @param string $fragment The link fragment (after the "#")
+ * @param string $interwiki Interwiki prefix
+ * @return Title|null The new object, or null on an error
*/
- function makeTitleSafe( $ns, $title ) {
+ public static function makeTitleSafe( $ns, $title, $fragment = '', $interwiki = '' ) {
+ // NOTE: ideally, this would just call makeTitle() and then isValid(),
+ // but presently, that means more overhead on a potential performance hotspot.
+
+ if ( !MWNamespace::exists( $ns ) ) {
+ return null;
+ }
+
$t = new Title();
- $t->mDbkeyform = Title::makeName( $ns, $title );
- if( $t->secureAndSplit() ) {
+ $t->mDbkeyform = self::makeName( $ns, $title, $fragment, $interwiki, true );
+
+ try {
+ $t->secureAndSplit();
return $t;
- } else {
- return NULL;
+ } catch ( MalformedTitleException $ex ) {
+ return null;
}
- }
+ }
/**
* Create a new Title for the Main Page
*
- * @static
- * @return Title the new object
- * @access public
- */
- function newMainPage() {
- return Title::newFromText( wfMsgForContent( 'mainpage' ) );
- }
-
- /**
- * Create a new Title for a redirect
- * @param string $text the redirect title text
- * @return Title the new object, or NULL if the text is not a
- * valid redirect
- * @static
- * @access public
+ * @return Title The new object
*/
- function newFromRedirect( $text ) {
- global $wgMwRedir;
- $rt = NULL;
- if ( $wgMwRedir->matchStart( $text ) ) {
- if ( preg_match( '/\[{2}(.*?)(?:\||\]{2})/', $text, $m ) ) {
- # categories are escaped using : for example one can enter:
- # #REDIRECT [[:Category:Music]]. Need to remove it.
- if ( substr($m[1],0,1) == ':') {
- # We don't want to keep the ':'
- $m[1] = substr( $m[1], 1 );
- }
-
- $rt = Title::newFromText( $m[1] );
- # Disallow redirects to Special:Userlogout
- if ( !is_null($rt) && $rt->getNamespace() == NS_SPECIAL && preg_match( '/^Userlogout/i', $rt->getText() ) ) {
- $rt = NULL;
- }
- }
+ public static function newMainPage() {
+ $title = self::newFromText( wfMessage( 'mainpage' )->inContentLanguage()->text() );
+ // Don't give fatal errors if the message is broken
+ if ( !$title ) {
+ $title = self::newFromText( 'Main Page' );
}
- return $rt;
+ return $title;
}
-#----------------------------------------------------------------------------
-# Static functions
-#----------------------------------------------------------------------------
-
/**
* Get the prefixed DB key associated with an ID
- * @param int $id the page_id of the article
- * @return Title an object representing the article, or NULL
- * if no such article was found
- * @static
- * @access public
+ *
+ * @param int $id The page_id of the article
+ * @return Title|null An object representing the article, or null if no such article was found
*/
- function nameOf( $id ) {
- $fname = 'Title::nameOf';
- $dbr =& wfGetDB( DB_SLAVE );
-
- $s = $dbr->selectRow( 'page', array( 'page_namespace','page_title' ), array( 'page_id' => $id ), $fname );
- if ( $s === false ) { return NULL; }
+ public static function nameOf( $id ) {
+ $dbr = wfGetDB( DB_REPLICA );
+
+ $s = $dbr->selectRow(
+ 'page',
+ [ 'page_namespace', 'page_title' ],
+ [ 'page_id' => $id ],
+ __METHOD__
+ );
+ if ( $s === false ) {
+ return null;
+ }
- $n = Title::makeName( $s->page_namespace, $s->page_title );
+ $n = self::makeName( $s->page_namespace, $s->page_title );
return $n;
}
/**
* Get a regex character class describing the legal characters in a link
- * @return string the list of characters, not delimited
- * @static
- * @access public
+ *
+ * @return string The list of characters, not delimited
*/
- function legalChars() {
- # Missing characters:
- # * []|# Needed for link syntax
- # * % and + are corrupted by Apache when they appear in the path
- #
- # % seems to work though
- #
- # The problem with % is that URLs are double-unescaped: once by Apache's
- # path conversion code, and again by PHP. So %253F, for example, becomes "?".
- # Our code does not double-escape to compensate for this, indeed double escaping
- # would break if the double-escaped title was passed in the query string
- # rather than the path. This is a minor security issue because articles can be
- # created such that they are hard to view or edit. -- TS
- #
- # Theoretically 0x80-0x9F of ISO 8859-1 should be disallowed, but
- # this breaks interlanguage links
-
- $set = " %!\"$&'()*,\\-.\\/0-9:;=?@A-Z\\\\^_`a-z~\\x80-\\xFF";
- return $set;
+ public static function legalChars() {
+ global $wgLegalTitleChars;
+ return $wgLegalTitleChars;
}
/**
- * Get a string representation of a title suitable for
- * including in a search index
+ * Returns a simple regex that will match on characters and sequences invalid in titles.
+ * Note that this doesn't pick up many things that could be wrong with titles, but that
+ * replacing this regex with something valid will make many titles valid.
+ *
+ * @deprecated since 1.25, use MediaWikiTitleCodec::getTitleInvalidRegex() instead
*
- * @param int $ns a namespace index
- * @param string $title text-form main part
- * @return string a stripped-down title string ready for the
- * search index
+ * @return string Regex string
*/
- /* static */ function indexTitle( $ns, $title ) {
- global $wgDBminWordLen, $wgContLang;
- require_once( 'SearchEngine.php' );
-
- $lc = SearchEngine::legalSearchChars() . '&#;';
- $t = $wgContLang->stripForSearch( $title );
- $t = preg_replace( "/[^{$lc}]+/", ' ', $t );
- $t = strtolower( $t );
-
- # Handle 's, s'
- $t = preg_replace( "/([{$lc}]+)'s( |$)/", "\\1 \\1's ", $t );
- $t = preg_replace( "/([{$lc}]+)s'( |$)/", "\\1s ", $t );
-
- $t = preg_replace( "/\\s+/", ' ', $t );
+ static function getTitleInvalidRegex() {
+ wfDeprecated( __METHOD__, '1.25' );
+ return MediaWikiTitleCodec::getTitleInvalidRegex();
+ }
- if ( $ns == NS_IMAGE ) {
- $t = preg_replace( "/ (png|gif|jpg|jpeg|ogg)$/", "", $t );
+ /**
+ * Utility method for converting a character sequence from bytes to Unicode.
+ *
+ * Primary usecase being converting $wgLegalTitleChars to a sequence usable in
+ * javascript, as PHP uses UTF-8 bytes where javascript uses Unicode code units.
+ *
+ * @param string $byteClass
+ * @return string
+ */
+ public static function convertByteClassToUnicodeClass( $byteClass ) {
+ $length = strlen( $byteClass );
+ // Input token queue
+ $x0 = $x1 = $x2 = '';
+ // Decoded queue
+ $d0 = $d1 = $d2 = '';
+ // Decoded integer codepoints
+ $ord0 = $ord1 = $ord2 = 0;
+ // Re-encoded queue
+ $r0 = $r1 = $r2 = '';
+ // Output
+ $out = '';
+ // Flags
+ $allowUnicode = false;
+ for ( $pos = 0; $pos < $length; $pos++ ) {
+ // Shift the queues down
+ $x2 = $x1;
+ $x1 = $x0;
+ $d2 = $d1;
+ $d1 = $d0;
+ $ord2 = $ord1;
+ $ord1 = $ord0;
+ $r2 = $r1;
+ $r1 = $r0;
+ // Load the current input token and decoded values
+ $inChar = $byteClass[$pos];
+ if ( $inChar == '\\' ) {
+ if ( preg_match( '/x([0-9a-fA-F]{2})/A', $byteClass, $m, 0, $pos + 1 ) ) {
+ $x0 = $inChar . $m[0];
+ $d0 = chr( hexdec( $m[1] ) );
+ $pos += strlen( $m[0] );
+ } elseif ( preg_match( '/[0-7]{3}/A', $byteClass, $m, 0, $pos + 1 ) ) {
+ $x0 = $inChar . $m[0];
+ $d0 = chr( octdec( $m[0] ) );
+ $pos += strlen( $m[0] );
+ } elseif ( $pos + 1 >= $length ) {
+ $x0 = $d0 = '\\';
+ } else {
+ $d0 = $byteClass[$pos + 1];
+ $x0 = $inChar . $d0;
+ $pos += 1;
+ }
+ } else {
+ $x0 = $d0 = $inChar;
+ }
+ $ord0 = ord( $d0 );
+ // Load the current re-encoded value
+ if ( $ord0 < 32 || $ord0 == 0x7f ) {
+ $r0 = sprintf( '\x%02x', $ord0 );
+ } elseif ( $ord0 >= 0x80 ) {
+ // Allow unicode if a single high-bit character appears
+ $r0 = sprintf( '\x%02x', $ord0 );
+ $allowUnicode = true;
+ } elseif ( strpos( '-\\[]^', $d0 ) !== false ) {
+ $r0 = '\\' . $d0;
+ } else {
+ $r0 = $d0;
+ }
+ // Do the output
+ if ( $x0 !== '' && $x1 === '-' && $x2 !== '' ) {
+ // Range
+ if ( $ord2 > $ord0 ) {
+ // Empty range
+ } elseif ( $ord0 >= 0x80 ) {
+ // Unicode range
+ $allowUnicode = true;
+ if ( $ord2 < 0x80 ) {
+ // Keep the non-unicode section of the range
+ $out .= "$r2-\\x7F";
+ }
+ } else {
+ // Normal range
+ $out .= "$r2-$r0";
+ }
+ // Reset state to the initial value
+ $x0 = $x1 = $d0 = $d1 = $r0 = $r1 = '';
+ } elseif ( $ord2 < 0x80 ) {
+ // ASCII character
+ $out .= $r2;
+ }
+ }
+ if ( $ord1 < 0x80 ) {
+ $out .= $r1;
}
- return trim( $t );
+ if ( $ord0 < 0x80 ) {
+ $out .= $r0;
+ }
+ if ( $allowUnicode ) {
+ $out .= '\u0080-\uFFFF';
+ }
+ return $out;
}
- /*
+ /**
* Make a prefixed DB key from a DB key and a namespace index
- * @param int $ns numerical representation of the namespace
- * @param string $title the DB key form the title
- * @return string the prefixed form of the title
+ *
+ * @param int $ns Numerical representation of the namespace
+ * @param string $title The DB key form the title
+ * @param string $fragment The link fragment (after the "#")
+ * @param string $interwiki The interwiki prefix
+ * @param bool $canonicalNamespace If true, use the canonical name for
+ * $ns instead of the localized version.
+ * @return string The prefixed form of the title
*/
- /* static */ function makeName( $ns, $title ) {
+ public static function makeName( $ns, $title, $fragment = '', $interwiki = '',
+ $canonicalNamespace = false
+ ) {
global $wgContLang;
- $n = $wgContLang->getNsText( $ns );
- return $n == '' ? $title : "$n:$title";
+ if ( $canonicalNamespace ) {
+ $namespace = MWNamespace::getCanonicalName( $ns );
+ } else {
+ $namespace = $wgContLang->getNsText( $ns );
+ }
+ $name = $namespace == '' ? $title : "$namespace:$title";
+ if ( strval( $interwiki ) != '' ) {
+ $name = "$interwiki:$name";
+ }
+ if ( strval( $fragment ) != '' ) {
+ $name .= '#' . $fragment;
+ }
+ return $name;
}
/**
- * Returns the URL associated with an interwiki prefix
- * @param string $key the interwiki prefix (e.g. "MeatBall")
- * @return the associated URL, containing "$1", which should be
- * replaced by an article title
- * @static (arguably)
- * @access public
+ * Escape a text fragment, say from a link, for a URL
+ *
+ * @deprecated since 1.30, use Sanitizer::escapeIdForLink() or escapeIdForExternalInterwiki()
+ *
+ * @param string $fragment Containing a URL or link fragment (after the "#")
+ * @return string Escaped string
*/
- function getInterwikiLink( $key, $transludeonly = false ) {
- global $wgMemc, $wgDBname, $wgInterwikiExpiry, $wgTitleInterwikiCache;
- $fname = 'Title::getInterwikiLink';
-
- wfProfileIn( $fname );
+ static function escapeFragmentForURL( $fragment ) {
+ # Note that we don't urlencode the fragment. urlencoded Unicode
+ # fragments appear not to work in IE (at least up to 7) or in at least
+ # one version of Opera 9.x. The W3C validator, for one, doesn't seem
+ # to care if they aren't encoded.
+ return Sanitizer::escapeId( $fragment, 'noninitial' );
+ }
- $k = $wgDBname.':interwiki:'.$key;
- if( array_key_exists( $k, $wgTitleInterwikiCache ) ) {
- wfProfileOut( $fname );
- return $wgTitleInterwikiCache[$k]->iw_url;
+ /**
+ * Callback for usort() to do title sorts by (namespace, title)
+ *
+ * @param LinkTarget $a
+ * @param LinkTarget $b
+ *
+ * @return int Result of string comparison, or namespace comparison
+ */
+ public static function compare( LinkTarget $a, LinkTarget $b ) {
+ if ( $a->getNamespace() == $b->getNamespace() ) {
+ return strcmp( $a->getText(), $b->getText() );
+ } else {
+ return $a->getNamespace() - $b->getNamespace();
}
+ }
- $s = $wgMemc->get( $k );
- # Ignore old keys with no iw_local
- if( $s && isset( $s->iw_local ) && isset($s->iw_trans)) {
- $wgTitleInterwikiCache[$k] = $s;
- wfProfileOut( $fname );
- return $s->iw_url;
- }
+ /**
+ * Returns true if the title is valid, false if it is invalid.
+ *
+ * Valid titles can be round-tripped via makeTitleSafe() and newFromText().
+ * Invalid titles may get returned from makeTitle(), and it may be useful to
+ * allow them to exist, e.g. in order to process log entries about pages in
+ * namespaces that belong to extensions that are no longer installed.
+ *
+ * @note This method is relatively expensive. When constructing Title
+ * objects that need to be valid, use an instantiator method that is guaranteed
+ * to return valid titles, such as makeTitleSafe() or newFromText().
+ *
+ * @return bool
+ */
+ public function isValid() {
+ $ns = $this->getNamespace();
- $dbr =& wfGetDB( DB_SLAVE );
- $res = $dbr->select( 'interwiki',
- array( 'iw_url', 'iw_local', 'iw_trans' ),
- array( 'iw_prefix' => $key ), $fname );
- if( !$res ) {
- wfProfileOut( $fname );
- return '';
+ if ( !MWNamespace::exists( $ns ) ) {
+ return false;
}
- $s = $dbr->fetchObject( $res );
- if( !$s ) {
- # Cache non-existence: create a blank object and save it to memcached
- $s = (object)false;
- $s->iw_url = '';
- $s->iw_local = 0;
- $s->iw_trans = 0;
+ try {
+ $parser = MediaWikiServices::getInstance()->getTitleParser();
+ $parser->parseTitle( $this->getDBkey(), $ns );
+ return true;
+ } catch ( MalformedTitleException $ex ) {
+ return false;
}
- $wgMemc->set( $k, $s, $wgInterwikiExpiry );
- $wgTitleInterwikiCache[$k] = $s;
-
- wfProfileOut( $fname );
- return $s->iw_url;
}
/**
* Determine whether the object refers to a page within
- * this project.
+ * this project (either this wiki or a wiki with a local
+ * interwiki, see https://www.mediawiki.org/wiki/Manual:Interwiki_table#iw_local )
*
- * @return bool TRUE if this is an in-project interwiki link
- * or a wikilink, FALSE otherwise
- * @access public
+ * @return bool True if this is an in-project interwiki link or a wikilink, false otherwise
*/
- function isLocal() {
- global $wgTitleInterwikiCache, $wgDBname;
-
- if ( $this->mInterwiki != '' ) {
- # Make sure key is loaded into cache
- $this->getInterwikiLink( $this->mInterwiki );
- $k = $wgDBname.':interwiki:' . $this->mInterwiki;
- return (bool)($wgTitleInterwikiCache[$k]->iw_local);
- } else {
- return true;
+ public function isLocal() {
+ if ( $this->isExternal() ) {
+ $iw = self::getInterwikiLookup()->fetch( $this->mInterwiki );
+ if ( $iw ) {
+ return $iw->isLocal();
+ }
}
+ return true;
}
/**
- * Determine whether the object refers to a page within
- * this project and is transcludable.
+ * Is this Title interwiki?
*
- * @return bool TRUE if this is transcludable
- * @access public
+ * @return bool
*/
- function isTrans() {
- global $wgTitleInterwikiCache, $wgDBname;
-
- if ($this->mInterwiki == '' || !$this->isLocal())
- return false;
- # Make sure key is loaded into cache
- $this->getInterwikiLink( $this->mInterwiki );
- $k = $wgDBname.':interwiki:' . $this->mInterwiki;
- return (bool)($wgTitleInterwikiCache[$k]->iw_trans);
+ public function isExternal() {
+ return $this->mInterwiki !== '';
}
/**
- * Update the page_touched field for an array of title objects
- * @todo Inefficient unless the IDs are already loaded into the
- * link cache
- * @param array $titles an array of Title objects to be touched
- * @param string $timestamp the timestamp to use instead of the
- * default current time
- * @static
- * @access public
+ * Get the interwiki prefix
+ *
+ * Use Title::isExternal to check if a interwiki is set
+ *
+ * @return string Interwiki prefix
*/
- function touchArray( $titles, $timestamp = '' ) {
- global $wgUseFileCache;
+ public function getInterwiki() {
+ return $this->mInterwiki;
+ }
- if ( count( $titles ) == 0 ) {
- return;
- }
- $dbw =& wfGetDB( DB_MASTER );
- if ( $timestamp == '' ) {
- $timestamp = $dbw->timestamp();
- }
- $page = $dbw->tableName( 'page' );
- /*
- $sql = "UPDATE $page SET page_touched='{$timestamp}' WHERE page_id IN (";
- $first = true;
-
- foreach ( $titles as $title ) {
- if ( $wgUseFileCache ) {
- $cm = new CacheManager($title);
- @unlink($cm->fileCacheName());
- }
-
- if ( ! $first ) {
- $sql .= ',';
- }
- $first = false;
- $sql .= $title->getArticleID();
- }
- $sql .= ')';
- if ( ! $first ) {
- $dbw->query( $sql, 'Title::touchArray' );
- }
- */
- // hack hack hack -- brion 2005-07-11. this was unfriendly to db.
- // do them in small chunks:
- $fname = 'Title::touchArray';
- foreach( $titles as $title ) {
- $dbw->update( 'page',
- array( 'page_touched' => $timestamp ),
- array(
- 'page_namespace' => $title->getNamespace(),
- 'page_title' => $title->getDBkey() ),
- $fname );
- }
- }
-
-#----------------------------------------------------------------------------
-# Other stuff
-#----------------------------------------------------------------------------
-
- /** Simple accessors */
- /**
- * Get the text form (spaces not underscores) of the main part
- * @return string
- * @access public
- */
- function getText() { return $this->mTextform; }
- /**
- * Get the URL-encoded form of the main part
- * @return string
- * @access public
- */
- function getPartialURL() { return $this->mUrlform; }
- /**
- * Get the main part with underscores
- * @return string
- * @access public
- */
- function getDBkey() { return $this->mDbkeyform; }
/**
- * Get the namespace index, i.e. one of the NS_xxxx constants
- * @return int
- * @access public
+ * Was this a local interwiki link?
+ *
+ * @return bool
*/
- function getNamespace() { return $this->mNamespace; }
+ public function wasLocalInterwiki() {
+ return $this->mLocalInterwiki;
+ }
+
/**
- * Get the interwiki prefix (or null string)
- * @return string
- * @access public
+ * Determine whether the object refers to a page within
+ * this project and is transcludable.
+ *
+ * @return bool True if this is transcludable
*/
- function getInterwiki() { return $this->mInterwiki; }
+ public function isTrans() {
+ if ( !$this->isExternal() ) {
+ return false;
+ }
+
+ return self::getInterwikiLookup()->fetch( $this->mInterwiki )->isTranscludable();
+ }
+
/**
- * Get the Title fragment (i.e. the bit after the #)
- * @return string
- * @access public
+ * Returns the DB name of the distant wiki which owns the object.
+ *
+ * @return string|false The DB name
*/
- function getFragment() { return $this->mFragment; }
+ public function getTransWikiID() {
+ if ( !$this->isExternal() ) {
+ return false;
+ }
+
+ return self::getInterwikiLookup()->fetch( $this->mInterwiki )->getWikiID();
+ }
+
/**
- * Get the default namespace index, for when there is no namespace
- * @return int
- * @access public
+ * Get a TitleValue object representing this Title.
+ *
+ * @note Not all valid Titles have a corresponding valid TitleValue
+ * (e.g. TitleValues cannot represent page-local links that have a
+ * fragment but no title text).
+ *
+ * @return TitleValue|null
*/
- function getDefaultNamespace() { return $this->mDefaultNamespace; }
+ public function getTitleValue() {
+ if ( $this->mTitleValue === null ) {
+ try {
+ $this->mTitleValue = new TitleValue(
+ $this->getNamespace(),
+ $this->getDBkey(),
+ $this->getFragment(),
+ $this->getInterwiki()
+ );
+ } catch ( InvalidArgumentException $ex ) {
+ wfDebug( __METHOD__ . ': Can\'t create a TitleValue for [[' .
+ $this->getPrefixedText() . ']]: ' . $ex->getMessage() . "\n" );
+ }
+ }
+
+ return $this->mTitleValue;
+ }
/**
- * Get title for search index
- * @return string a stripped-down title string ready for the
- * search index
+ * Get the text form (spaces not underscores) of the main part
+ *
+ * @return string Main part of the title
*/
- function getIndexTitle() {
- return Title::indexTitle( $this->mNamespace, $this->mTextform );
+ public function getText() {
+ return $this->mTextform;
}
/**
- * Get the prefixed database key form
- * @return string the prefixed title, with underscores and
- * any interwiki and namespace prefixes
- * @access public
+ * Get the URL-encoded form of the main part
+ *
+ * @return string Main part of the title, URL-encoded
*/
- function getPrefixedDBkey() {
- $s = $this->prefix( $this->mDbkeyform );
- $s = str_replace( ' ', '_', $s );
- return $s;
+ public function getPartialURL() {
+ return $this->mUrlform;
}
/**
- * Get the prefixed title with spaces.
- * This is the form usually used for display
- * @return string the prefixed title, with spaces
- * @access public
+ * Get the main part with underscores
+ *
+ * @return string Main part of the title, with underscores
*/
- function getPrefixedText() {
- global $wgContLang;
- if ( empty( $this->mPrefixedText ) ) {
- $s = $this->prefix( $this->mTextform );
- $s = str_replace( '_', ' ', $s );
- $this->mPrefixedText = $s;
- }
- return $this->mPrefixedText;
+ public function getDBkey() {
+ return $this->mDbkeyform;
}
/**
- * Get the prefixed title with spaces, plus any fragment
- * (part beginning with '#')
- * @return string the prefixed title, with spaces and
- * the fragment, including '#'
- * @access public
+ * Get the DB key with the initial letter case as specified by the user
+ *
+ * @return string DB key
*/
- function getFullText() {
- global $wgContLang;
- $text = $this->getPrefixedText();
- if( '' != $this->mFragment ) {
- $text .= '#' . $this->mFragment;
+ function getUserCaseDBKey() {
+ if ( !is_null( $this->mUserCaseDBKey ) ) {
+ return $this->mUserCaseDBKey;
+ } else {
+ // If created via makeTitle(), $this->mUserCaseDBKey is not set.
+ return $this->mDbkeyform;
}
- return $text;
}
/**
- * Get a URL-encoded title (not an actual URL) including interwiki
- * @return string the URL-encoded form
- * @access public
+ * Get the namespace index, i.e. one of the NS_xxxx constants.
+ *
+ * @return int Namespace index
*/
- function getPrefixedURL() {
- $s = $this->prefix( $this->mDbkeyform );
- $s = str_replace( ' ', '_', $s );
-
- $s = wfUrlencode ( $s ) ;
-
- # Cleaning up URL to make it look nice -- is this safe?
- $s = str_replace( '%28', '(', $s );
- $s = str_replace( '%29', ')', $s );
-
- return $s;
+ public function getNamespace() {
+ return $this->mNamespace;
}
/**
- * Get a real URL referring to this title, with interwiki link and
- * fragment
+ * Get the page's content model id, see the CONTENT_MODEL_XXX constants.
*
- * @param string $query an optional query string, not used
- * for interwiki links
- * @return string the URL
- * @access public
+ * @param int $flags A bit field; may be Title::GAID_FOR_UPDATE to select for update
+ * @return string Content model id
*/
- function getFullURL( $query = '' ) {
- global $wgContLang, $wgServer, $wgScript, $wgMakeDumpLinks, $wgArticlePath;
-
- if ( '' == $this->mInterwiki ) {
- return $wgServer . $this->getLocalUrl( $query );
- } elseif ( $wgMakeDumpLinks && $wgContLang->getLanguageName( $this->mInterwiki ) ) {
- $baseUrl = str_replace( '$1', "../../{$this->mInterwiki}/$1", $wgArticlePath );
- $baseUrl = str_replace( '$1', $this->getHashedDirectory() . '/$1', $baseUrl );
- } else {
- $baseUrl = $this->getInterwikiLink( $this->mInterwiki );
+ public function getContentModel( $flags = 0 ) {
+ if ( !$this->mForcedContentModel
+ && ( !$this->mContentModel || $flags === self::GAID_FOR_UPDATE )
+ && $this->getArticleID( $flags )
+ ) {
+ $linkCache = LinkCache::singleton();
+ $linkCache->addLinkObj( $this ); # in case we already had an article ID
+ $this->mContentModel = $linkCache->getGoodLinkFieldObj( $this, 'model' );
}
- $namespace = $wgContLang->getNsText( $this->mNamespace );
- if ( '' != $namespace ) {
- # Can this actually happen? Interwikis shouldn't be parsed.
- $namespace .= ':';
- }
- $url = str_replace( '$1', $namespace . $this->mUrlform, $baseUrl );
- if( $query != '' ) {
- if( false === strpos( $url, '?' ) ) {
- $url .= '?';
- } else {
- $url .= '&';
- }
- $url .= $query;
+ if ( !$this->mContentModel ) {
+ $this->mContentModel = ContentHandler::getDefaultModelFor( $this );
}
- if ( '' != $this->mFragment ) {
- $url .= '#' . $this->mFragment;
- }
- return $url;
+
+ return $this->mContentModel;
}
/**
- * Get a relative directory for putting an HTML version of this article into
+ * Convenience method for checking a title's content model name
+ *
+ * @param string $id The content model ID (use the CONTENT_MODEL_XXX constants).
+ * @return bool True if $this->getContentModel() == $id
*/
- function getHashedDirectory() {
- global $wgMakeDumpLinks, $wgInputEncoding;
- $dbkey = $this->getDBkey();
-
- # Split into characters
- if ( $wgInputEncoding == 'UTF-8' ) {
- preg_match_all( '/./us', $dbkey, $m );
- } else {
- preg_match_all( '/./s', $dbkey, $m );
- }
- $chars = $m[0];
- $length = count( $chars );
- $dir = '';
-
- for ( $i = 0; $i < $wgMakeDumpLinks; $i++ ) {
- if ( $i ) {
- $dir .= '/';
- }
- if ( $i >= $length ) {
- $dir .= '_';
- } elseif ( ord( $chars[$i] ) > 32 ) {
- $dir .= strtolower( $chars[$i] );
- } else {
- $dir .= sprintf( "%02X", ord( $chars[$i] ) );
- }
- }
- return $dir;
+ public function hasContentModel( $id ) {
+ return $this->getContentModel() == $id;
}
- function getHashedFilename() {
- $dbkey = $this->getPrefixedDBkey();
- $mainPage = Title::newMainPage();
- if ( $mainPage->getPrefixedDBkey() == $dbkey ) {
- return 'index.html';
- }
-
- $dir = $this->getHashedDirectory();
-
- # Replace illegal charcters for Windows paths with underscores
- $friendlyName = strtr( $dbkey, '/\\*?"<>|~', '_________' );
-
- # Work out lower case form. We assume we're on a system with case-insensitive
- # filenames, so unless the case is of a special form, we have to disambiguate
- $lowerCase = $this->prefix( ucfirst( strtolower( $this->getDBkey() ) ) );
-
- # Make it mostly unique
- if ( $lowerCase != $friendlyName ) {
- $friendlyName .= '_' . substr(md5( $dbkey ), 0, 4);
- }
- # Handle colon specially by replacing it with tilde
- # Thus we reduce the number of paths with hashes appended
- $friendlyName = str_replace( ':', '~', $friendlyName );
- return "$dir/$friendlyName.html";
+ /**
+ * Set a proposed content model for the page for permissions
+ * checking. This does not actually change the content model
+ * of a title!
+ *
+ * Additionally, you should make sure you've checked
+ * ContentHandler::canBeUsedOn() first.
+ *
+ * @since 1.28
+ * @param string $model CONTENT_MODEL_XXX constant
+ */
+ public function setContentModel( $model ) {
+ $this->mContentModel = $model;
+ $this->mForcedContentModel = true;
}
/**
- * Get a URL with no fragment or server name. If this page is generated
- * with action=render, $wgServer is prepended.
- * @param string $query an optional query string; if not specified,
- * $wgArticlePath will be used.
- * @return string the URL
- * @access public
+ * Get the namespace text
+ *
+ * @return string|false Namespace text
*/
- function getLocalURL( $query = '' ) {
- global $wgLang, $wgArticlePath, $wgScript, $wgMakeDumpLinks, $wgServer, $action;
-
+ public function getNsText() {
if ( $this->isExternal() ) {
- return $this->getFullURL();
- }
-
- $dbkey = wfUrlencode( $this->getPrefixedDBkey() );
- if ( $wgMakeDumpLinks ) {
- $url = str_replace( '$1', wfUrlencode( $this->getHashedFilename() ), $wgArticlePath );
- } elseif ( $query == '' ) {
- $url = str_replace( '$1', $dbkey, $wgArticlePath );
- } else {
- global $wgActionPaths;
- if( !empty( $wgActionPaths ) &&
- preg_match( '/^(.*&|)action=([^&]*)(&(.*)|)$/', $query, $matches ) ) {
- $action = urldecode( $matches[2] );
- if( isset( $wgActionPaths[$action] ) ) {
- $query = $matches[1];
- if( isset( $matches[4] ) ) $query .= $matches[4];
- $url = str_replace( '$1', $dbkey, $wgActionPaths[$action] );
- if( $query != '' ) $url .= '?' . $query;
- return $url;
- }
+ // This probably shouldn't even happen,
+ // but for interwiki transclusion it sometimes does.
+ // Use the canonical namespaces if possible to try to
+ // resolve a foreign namespace.
+ if ( MWNamespace::exists( $this->mNamespace ) ) {
+ return MWNamespace::getCanonicalName( $this->mNamespace );
}
- if ( $query == '-' ) {
- $query = '';
- }
- $url = "{$wgScript}?title={$dbkey}&{$query}";
}
- if ($action == 'render')
- return $wgServer . $url;
- else
- return $url;
+ try {
+ $formatter = self::getTitleFormatter();
+ return $formatter->getNamespaceName( $this->mNamespace, $this->mDbkeyform );
+ } catch ( InvalidArgumentException $ex ) {
+ wfDebug( __METHOD__ . ': ' . $ex->getMessage() . "\n" );
+ return false;
+ }
}
/**
- * Get an HTML-escaped version of the URL form, suitable for
- * using in a link, without a server name or fragment
- * @param string $query an optional query string
- * @return string the URL
- * @access public
+ * Get the namespace text of the subject (rather than talk) page
+ *
+ * @return string Namespace text
*/
- function escapeLocalURL( $query = '' ) {
- return htmlspecialchars( $this->getLocalURL( $query ) );
+ public function getSubjectNsText() {
+ global $wgContLang;
+ return $wgContLang->getNsText( MWNamespace::getSubject( $this->mNamespace ) );
}
/**
- * Get an HTML-escaped version of the URL form, suitable for
- * using in a link, including the server name and fragment
+ * Get the namespace text of the talk page
*
- * @return string the URL
- * @param string $query an optional query string
- * @access public
+ * @return string Namespace text
*/
- function escapeFullURL( $query = '' ) {
- return htmlspecialchars( $this->getFullURL( $query ) );
+ public function getTalkNsText() {
+ global $wgContLang;
+ return $wgContLang->getNsText( MWNamespace::getTalk( $this->mNamespace ) );
}
/**
- * Get the URL form for an internal link.
- * - Used in various Squid-related code, in case we have a different
- * internal hostname for the server from the exposed one.
+ * Can this title have a corresponding talk page?
*
- * @param string $query an optional query string
- * @return string the URL
- * @access public
+ * @deprecated since 1.30, use canHaveTalkPage() instead.
+ *
+ * @return bool True if this title either is a talk page or can have a talk page associated.
*/
- function getInternalURL( $query = '' ) {
- global $wgInternalServer;
- return $wgInternalServer . $this->getLocalURL( $query );
+ public function canTalk() {
+ return $this->canHaveTalkPage();
}
/**
- * Get the edit URL for this Title
- * @return string the URL, or a null string if this is an
- * interwiki link
- * @access public
+ * Can this title have a corresponding talk page?
+ *
+ * @see MWNamespace::hasTalkNamespace
+ * @since 1.30
+ *
+ * @return bool True if this title either is a talk page or can have a talk page associated.
*/
- function getEditURL() {
- global $wgServer, $wgScript;
-
- if ( '' != $this->mInterwiki ) { return ''; }
- $s = $this->getLocalURL( 'action=edit' );
+ public function canHaveTalkPage() {
+ return MWNamespace::hasTalkNamespace( $this->mNamespace );
+ }
- return $s;
+ /**
+ * Is this in a namespace that allows actual pages?
+ *
+ * @return bool
+ */
+ public function canExist() {
+ return $this->mNamespace >= NS_MAIN;
}
/**
- * Get the HTML-escaped displayable text form.
- * Used for the title field in <a> tags.
- * @return string the text, including any prefixes
- * @access public
+ * Can this title be added to a user's watchlist?
+ *
+ * @return bool
*/
- function getEscapedText() {
- return htmlspecialchars( $this->getPrefixedText() );
+ public function isWatchable() {
+ return !$this->isExternal() && MWNamespace::isWatchable( $this->getNamespace() );
}
/**
- * Is this Title interwiki?
- * @return boolean
- * @access public
+ * Returns true if this is a special page.
+ *
+ * @return bool
*/
- function isExternal() { return ( '' != $this->mInterwiki ); }
+ public function isSpecialPage() {
+ return $this->getNamespace() == NS_SPECIAL;
+ }
/**
- * Does the title correspond to a protected article?
- * @param string $what the action the page is protected from,
- * by default checks move and edit
- * @return boolean
- * @access public
+ * Returns true if this title resolves to the named special page
+ *
+ * @param string $name The special page name
+ * @return bool
*/
- function isProtected($action = '') {
- if ( -1 == $this->mNamespace ) { return true; }
- if($action == 'edit' || $action == '') {
- $a = $this->getRestrictions("edit");
- if ( in_array( 'sysop', $a ) ) { return true; }
- }
- if($action == 'move' || $action == '') {
- $a = $this->getRestrictions("move");
- if ( in_array( 'sysop', $a ) ) { return true; }
+ public function isSpecial( $name ) {
+ if ( $this->isSpecialPage() ) {
+ list( $thisName, /* $subpage */ ) = SpecialPageFactory::resolveAlias( $this->getDBkey() );
+ if ( $name == $thisName ) {
+ return true;
+ }
}
return false;
}
/**
- * Is $wgUser is watching this page?
- * @return boolean
- * @access public
+ * If the Title refers to a special page alias which is not the local default, resolve
+ * the alias, and localise the name as necessary. Otherwise, return $this
+ *
+ * @return Title
*/
- function userIsWatching() {
- global $wgUser;
-
- if ( is_null( $this->mWatched ) ) {
- if ( -1 == $this->mNamespace || 0 == $wgUser->getID()) {
- $this->mWatched = false;
- } else {
- $this->mWatched = $wgUser->isWatched( $this );
+ public function fixSpecialName() {
+ if ( $this->isSpecialPage() ) {
+ list( $canonicalName, $par ) = SpecialPageFactory::resolveAlias( $this->mDbkeyform );
+ if ( $canonicalName ) {
+ $localName = SpecialPageFactory::getLocalNameFor( $canonicalName, $par );
+ if ( $localName != $this->mDbkeyform ) {
+ return self::makeTitle( NS_SPECIAL, $localName );
+ }
}
}
- return $this->mWatched;
+ return $this;
}
- /**
- * Is $wgUser perform $action this page?
- * @param string $action action that permission needs to be checked for
- * @return boolean
- * @access private
- */
- function userCan($action) {
- $fname = 'Title::userCanEdit';
- wfProfileIn( $fname );
-
- global $wgUser;
- if( NS_SPECIAL == $this->mNamespace ) {
- wfProfileOut( $fname );
- return false;
- }
- if( NS_MEDIAWIKI == $this->mNamespace &&
- !$wgUser->isAllowed('editinterface') ) {
- wfProfileOut( $fname );
- return false;
- }
- if( $this->mDbkeyform == '_' ) {
- # FIXME: Is this necessary? Shouldn't be allowed anyway...
- wfProfileOut( $fname );
- return false;
- }
-
- # protect global styles and js
- if ( NS_MEDIAWIKI == $this->mNamespace
- && preg_match("/\\.(css|js)$/", $this->mTextform )
- && !$wgUser->isAllowed('editinterface') ) {
- wfProfileOut( $fname );
- return false;
- }
+ /**
+ * Returns true if the title is inside the specified namespace.
+ *
+ * Please make use of this instead of comparing to getNamespace()
+ * This function is much more resistant to changes we may make
+ * to namespaces than code that makes direct comparisons.
+ * @param int $ns The namespace
+ * @return bool
+ * @since 1.19
+ */
+ public function inNamespace( $ns ) {
+ return MWNamespace::equals( $this->getNamespace(), $ns );
+ }
- # protect css/js subpages of user pages
- # XXX: this might be better using restrictions
- # XXX: Find a way to work around the php bug that prevents using $this->userCanEditCssJsSubpage() from working
- if( NS_USER == $this->mNamespace
- && preg_match("/\\.(css|js)$/", $this->mTextform )
- && !$wgUser->isAllowed('editinterface')
- && !preg_match('/^'.preg_quote($wgUser->getName(), '/').'\//', $this->mTextform) ) {
- wfProfileOut( $fname );
- return false;
+ /**
+ * Returns true if the title is inside one of the specified namespaces.
+ *
+ * @param int|int[] $namespaces,... The namespaces to check for
+ * @return bool
+ * @since 1.19
+ */
+ public function inNamespaces( /* ... */ ) {
+ $namespaces = func_get_args();
+ if ( count( $namespaces ) > 0 && is_array( $namespaces[0] ) ) {
+ $namespaces = $namespaces[0];
}
- foreach( $this->getRestrictions($action) as $right ) {
- // Backwards compatibility, rewrite sysop -> protect
- if ( $right == 'sysop' ) {
- $right = 'protect';
- }
- if( '' != $right && !$wgUser->isAllowed( $right ) ) {
- wfProfileOut( $fname );
- return false;
+ foreach ( $namespaces as $ns ) {
+ if ( $this->inNamespace( $ns ) ) {
+ return true;
}
}
- if( $action == 'move' &&
- !( $this->isMovable() && $wgUser->isAllowed( 'move' ) ) ) {
- wfProfileOut( $fname );
- return false;
- }
-
- wfProfileOut( $fname );
- return true;
+ return false;
}
/**
- * Can $wgUser edit this page?
- * @return boolean
- * @access public
+ * Returns true if the title has the same subject namespace as the
+ * namespace specified.
+ * For example this method will take NS_USER and return true if namespace
+ * is either NS_USER or NS_USER_TALK since both of them have NS_USER
+ * as their subject namespace.
+ *
+ * This is MUCH simpler than individually testing for equivalence
+ * against both NS_USER and NS_USER_TALK, and is also forward compatible.
+ * @since 1.19
+ * @param int $ns
+ * @return bool
*/
- function userCanEdit() {
- return $this->userCan('edit');
+ public function hasSubjectNamespace( $ns ) {
+ return MWNamespace::subjectEquals( $this->getNamespace(), $ns );
}
/**
- * Can $wgUser move this page?
- * @return boolean
- * @access public
+ * Is this Title in a namespace which contains content?
+ * In other words, is this a content page, for the purposes of calculating
+ * statistics, etc?
+ *
+ * @return bool
*/
- function userCanMove() {
- return $this->userCan('move');
+ public function isContentPage() {
+ return MWNamespace::isContent( $this->getNamespace() );
}
/**
* Would anybody with sufficient privileges be able to move this page?
* Some pages just aren't movable.
*
- * @return boolean
- * @access public
+ * @return bool
*/
- function isMovable() {
- return Namespace::isMovable( $this->getNamespace() )
- && $this->getInterwiki() == '';
+ public function isMovable() {
+ if ( !MWNamespace::isMovable( $this->getNamespace() ) || $this->isExternal() ) {
+ // Interwiki title or immovable namespace. Hooks don't get to override here
+ return false;
+ }
+
+ $result = true;
+ Hooks::run( 'TitleIsMovable', [ $this, &$result ] );
+ return $result;
}
/**
- * Can $wgUser read this page?
- * @return boolean
- * @access public
+ * Is this the mainpage?
+ * @note Title::newFromText seems to be sufficiently optimized by the title
+ * cache that we don't need to over-optimize by doing direct comparisons and
+ * accidentally creating new bugs where $title->equals( Title::newFromText() )
+ * ends up reporting something differently than $title->isMainPage();
+ *
+ * @since 1.18
+ * @return bool
*/
- function userCanRead() {
- global $wgUser;
+ public function isMainPage() {
+ return $this->equals( self::newMainPage() );
+ }
- if( $wgUser->isAllowed('read') ) {
- return true;
- } else {
- global $wgWhitelistRead;
+ /**
+ * Is this a subpage?
+ *
+ * @return bool
+ */
+ public function isSubpage() {
+ return MWNamespace::hasSubpages( $this->mNamespace )
+ ? strpos( $this->getText(), '/' ) !== false
+ : false;
+ }
- /** If anon users can create an account,
- they need to reach the login page first! */
- if( $wgUser->isAllowed( 'createaccount' )
- && $this->getNamespace() == NS_SPECIAL
- && $this->getText() == 'Userlogin' ) {
- return true;
- }
+ /**
+ * Is this a conversion table for the LanguageConverter?
+ *
+ * @return bool
+ */
+ public function isConversionTable() {
+ // @todo ConversionTable should become a separate content model.
- /** some pages are explicitly allowed */
- $name = $this->getPrefixedText();
- if( $wgWhitelistRead && in_array( $name, $wgWhitelistRead ) ) {
- return true;
- }
+ return $this->getNamespace() == NS_MEDIAWIKI &&
+ strpos( $this->getText(), 'Conversiontable/' ) === 0;
+ }
- # Compatibility with old settings
- if( $wgWhitelistRead && $this->getNamespace() == NS_MAIN ) {
- if( in_array( ':' . $name, $wgWhitelistRead ) ) {
- return true;
- }
- }
- }
- return false;
+ /**
+ * Does that page contain wikitext, or it is JS, CSS or whatever?
+ *
+ * @return bool
+ */
+ public function isWikitextPage() {
+ return $this->hasContentModel( CONTENT_MODEL_WIKITEXT );
}
/**
- * Is this a talk page of some sort?
+ * Could this page contain custom CSS or JavaScript for the global UI.
+ * This is generally true for pages in the MediaWiki namespace having CONTENT_MODEL_CSS
+ * or CONTENT_MODEL_JAVASCRIPT.
+ *
+ * This method does *not* return true for per-user JS/CSS. Use isCssJsSubpage()
+ * for that!
+ *
+ * Note that this method should not return true for pages that contain and
+ * show "inactive" CSS or JS.
+ *
* @return bool
- * @access public
+ * @todo FIXME: Rename to isSiteConfigPage() and remove deprecated hook
*/
- function isTalkPage() {
- return Namespace::isTalk( $this->getNamespace() );
+ public function isCssOrJsPage() {
+ $isCssOrJsPage = NS_MEDIAWIKI == $this->mNamespace
+ && ( $this->hasContentModel( CONTENT_MODEL_CSS )
+ || $this->hasContentModel( CONTENT_MODEL_JAVASCRIPT ) );
+
+ return $isCssOrJsPage;
}
/**
* Is this a .css or .js subpage of a user page?
* @return bool
- * @access public
+ * @todo FIXME: Rename to isUserConfigPage()
+ */
+ public function isCssJsSubpage() {
+ return ( NS_USER == $this->mNamespace && $this->isSubpage()
+ && ( $this->hasContentModel( CONTENT_MODEL_CSS )
+ || $this->hasContentModel( CONTENT_MODEL_JAVASCRIPT ) ) );
+ }
+
+ /**
+ * Trim down a .css or .js subpage title to get the corresponding skin name
+ *
+ * @return string Containing skin name from .css or .js subpage title
*/
- function isCssJsSubpage() {
- return ( NS_USER == $this->mNamespace and preg_match("/\\.(css|js)$/", $this->mTextform ) );
+ public function getSkinFromCssJsSubpage() {
+ $subpage = explode( '/', $this->mTextform );
+ $subpage = $subpage[count( $subpage ) - 1];
+ $lastdot = strrpos( $subpage, '.' );
+ if ( $lastdot === false ) {
+ return $subpage; # Never happens: only called for names ending in '.css' or '.js'
+ }
+ return substr( $subpage, 0, $lastdot );
}
+
/**
* Is this a .css subpage of a user page?
+ *
* @return bool
- * @access public
*/
- function isCssSubpage() {
- return ( NS_USER == $this->mNamespace and preg_match("/\\.css$/", $this->mTextform ) );
+ public function isCssSubpage() {
+ return ( NS_USER == $this->mNamespace && $this->isSubpage()
+ && $this->hasContentModel( CONTENT_MODEL_CSS ) );
}
+
/**
* Is this a .js subpage of a user page?
+ *
* @return bool
- * @access public
*/
- function isJsSubpage() {
- return ( NS_USER == $this->mNamespace and preg_match("/\\.js$/", $this->mTextform ) );
+ public function isJsSubpage() {
+ return ( NS_USER == $this->mNamespace && $this->isSubpage()
+ && $this->hasContentModel( CONTENT_MODEL_JAVASCRIPT ) );
}
+
/**
- * Protect css/js subpages of user pages: can $wgUser edit
- * this page?
+ * Is this a talk page of some sort?
*
- * @return boolean
- * @todo XXX: this might be better using restrictions
- * @access public
+ * @return bool
*/
- function userCanEditCssJsSubpage() {
- global $wgUser;
- return ( $wgUser->isAllowed('editinterface') or preg_match('/^'.preg_quote($wgUser->getName(), '/').'\//', $this->mTextform) );
+ public function isTalkPage() {
+ return MWNamespace::isTalk( $this->getNamespace() );
}
/**
- * Loads a string into mRestrictions array
- * @param string $res restrictions in string format
- * @access public
+ * Get a Title object associated with the talk page of this article
+ *
+ * @return Title The object for the talk page
*/
- function loadRestrictions( $res ) {
- foreach( explode( ':', trim( $res ) ) as $restrict ) {
- $temp = explode( '=', trim( $restrict ) );
- if(count($temp) == 1) {
- // old format should be treated as edit/move restriction
- $this->mRestrictions["edit"] = explode( ',', trim( $temp[0] ) );
- $this->mRestrictions["move"] = explode( ',', trim( $temp[0] ) );
- } else {
- $this->mRestrictions[$temp[0]] = explode( ',', trim( $temp[1] ) );
- }
- }
- $this->mRestrictionsLoaded = true;
+ public function getTalkPage() {
+ return self::makeTitle( MWNamespace::getTalk( $this->getNamespace() ), $this->getDBkey() );
}
/**
- * Accessor/initialisation for mRestrictions
- * @param string $action action that permission needs to be checked for
- * @return array the array of groups allowed to edit this article
- * @access public
+ * Get a Title object associated with the talk page of this article,
+ * if such a talk page can exist.
+ *
+ * @since 1.30
+ *
+ * @return Title|null The object for the talk page,
+ * or null if no associated talk page can exist, according to canHaveTalkPage().
*/
- function getRestrictions($action) {
- $id = $this->getArticleID();
- if ( 0 == $id ) { return array(); }
-
- if ( ! $this->mRestrictionsLoaded ) {
- $dbr =& wfGetDB( DB_SLAVE );
- $res = $dbr->selectField( 'page', 'page_restrictions', 'page_id='.$id );
- $this->loadRestrictions( $res );
+ public function getTalkPageIfDefined() {
+ if ( !$this->canHaveTalkPage() ) {
+ return null;
}
- if( isset( $this->mRestrictions[$action] ) ) {
- return $this->mRestrictions[$action];
- }
- return array();
+
+ return $this->getTalkPage();
}
/**
- * Is there a version of this page in the deletion archive?
- * @return int the number of archived revisions
- * @access public
- */
- function isDeleted() {
- $fname = 'Title::isDeleted';
+ * Get a title object associated with the subject page of this
+ * talk page
+ *
+ * @return Title The object for the subject page
+ */
+ public function getSubjectPage() {
+ // Is this the same title?
+ $subjectNS = MWNamespace::getSubject( $this->getNamespace() );
+ if ( $this->getNamespace() == $subjectNS ) {
+ return $this;
+ }
+ return self::makeTitle( $subjectNS, $this->getDBkey() );
+ }
+
+ /**
+ * Get the other title for this page, if this is a subject page
+ * get the talk page, if it is a subject page get the talk page
+ *
+ * @since 1.25
+ * @throws MWException If the page doesn't have an other page
+ * @return Title
+ */
+ public function getOtherPage() {
+ if ( $this->isSpecialPage() ) {
+ throw new MWException( 'Special pages cannot have other pages' );
+ }
+ if ( $this->isTalkPage() ) {
+ return $this->getSubjectPage();
+ } else {
+ if ( !$this->canHaveTalkPage() ) {
+ throw new MWException( "{$this->getPrefixedText()} does not have an other page" );
+ }
+ return $this->getTalkPage();
+ }
+ }
+
+ /**
+ * Get the default namespace index, for when there is no namespace
+ *
+ * @return int Default namespace index
+ */
+ public function getDefaultNamespace() {
+ return $this->mDefaultNamespace;
+ }
+
+ /**
+ * Get the Title fragment (i.e.\ the bit after the #) in text form
+ *
+ * Use Title::hasFragment to check for a fragment
+ *
+ * @return string Title fragment
+ */
+ public function getFragment() {
+ return $this->mFragment;
+ }
+
+ /**
+ * Check if a Title fragment is set
+ *
+ * @return bool
+ * @since 1.23
+ */
+ public function hasFragment() {
+ return $this->mFragment !== '';
+ }
+
+ /**
+ * Get the fragment in URL form, including the "#" character if there is one
+ *
+ * @return string Fragment in URL form
+ */
+ public function getFragmentForURL() {
+ if ( !$this->hasFragment() ) {
+ return '';
+ } elseif ( $this->isExternal() && !$this->getTransWikiID() ) {
+ return '#' . Sanitizer::escapeIdForExternalInterwiki( $this->getFragment() );
+ }
+ return '#' . Sanitizer::escapeIdForLink( $this->getFragment() );
+ }
+
+ /**
+ * Set the fragment for this title. Removes the first character from the
+ * specified fragment before setting, so it assumes you're passing it with
+ * an initial "#".
+ *
+ * Deprecated for public use, use Title::makeTitle() with fragment parameter,
+ * or Title::createFragmentTarget().
+ * Still in active use privately.
+ *
+ * @private
+ * @param string $fragment Text
+ */
+ public function setFragment( $fragment ) {
+ $this->mFragment = strtr( substr( $fragment, 1 ), '_', ' ' );
+ }
+
+ /**
+ * Creates a new Title for a different fragment of the same page.
+ *
+ * @since 1.27
+ * @param string $fragment
+ * @return Title
+ */
+ public function createFragmentTarget( $fragment ) {
+ return self::makeTitle(
+ $this->getNamespace(),
+ $this->getText(),
+ $fragment,
+ $this->getInterwiki()
+ );
+ }
+
+ /**
+ * Prefix some arbitrary text with the namespace or interwiki prefix
+ * of this object
+ *
+ * @param string $name The text
+ * @return string The prefixed text
+ */
+ private function prefix( $name ) {
+ global $wgContLang;
+
+ $p = '';
+ if ( $this->isExternal() ) {
+ $p = $this->mInterwiki . ':';
+ }
+
+ if ( 0 != $this->mNamespace ) {
+ $nsText = $this->getNsText();
+
+ if ( $nsText === false ) {
+ // See T165149. Awkward, but better than erroneously linking to the main namespace.
+ $nsText = $wgContLang->getNsText( NS_SPECIAL ) . ":Badtitle/NS{$this->mNamespace}";
+ }
+
+ $p .= $nsText . ':';
+ }
+ return $p . $name;
+ }
+
+ /**
+ * Get the prefixed database key form
+ *
+ * @return string The prefixed title, with underscores and
+ * any interwiki and namespace prefixes
+ */
+ public function getPrefixedDBkey() {
+ $s = $this->prefix( $this->mDbkeyform );
+ $s = strtr( $s, ' ', '_' );
+ return $s;
+ }
+
+ /**
+ * Get the prefixed title with spaces.
+ * This is the form usually used for display
+ *
+ * @return string The prefixed title, with spaces
+ */
+ public function getPrefixedText() {
+ if ( $this->mPrefixedText === null ) {
+ $s = $this->prefix( $this->mTextform );
+ $s = strtr( $s, '_', ' ' );
+ $this->mPrefixedText = $s;
+ }
+ return $this->mPrefixedText;
+ }
+
+ /**
+ * Return a string representation of this title
+ *
+ * @return string Representation of this title
+ */
+ public function __toString() {
+ return $this->getPrefixedText();
+ }
+
+ /**
+ * Get the prefixed title with spaces, plus any fragment
+ * (part beginning with '#')
+ *
+ * @return string The prefixed title, with spaces and the fragment, including '#'
+ */
+ public function getFullText() {
+ $text = $this->getPrefixedText();
+ if ( $this->hasFragment() ) {
+ $text .= '#' . $this->getFragment();
+ }
+ return $text;
+ }
+
+ /**
+ * Get the root page name text without a namespace, i.e. the leftmost part before any slashes
+ *
+ * @par Example:
+ * @code
+ * Title::newFromText('User:Foo/Bar/Baz')->getRootText();
+ * # returns: 'Foo'
+ * @endcode
+ *
+ * @return string Root name
+ * @since 1.20
+ */
+ public function getRootText() {
+ if ( !MWNamespace::hasSubpages( $this->mNamespace ) ) {
+ return $this->getText();
+ }
+
+ return strtok( $this->getText(), '/' );
+ }
+
+ /**
+ * Get the root page name title, i.e. the leftmost part before any slashes
+ *
+ * @par Example:
+ * @code
+ * Title::newFromText('User:Foo/Bar/Baz')->getRootTitle();
+ * # returns: Title{User:Foo}
+ * @endcode
+ *
+ * @return Title Root title
+ * @since 1.20
+ */
+ public function getRootTitle() {
+ return self::makeTitle( $this->getNamespace(), $this->getRootText() );
+ }
+
+ /**
+ * Get the base page name without a namespace, i.e. the part before the subpage name
+ *
+ * @par Example:
+ * @code
+ * Title::newFromText('User:Foo/Bar/Baz')->getBaseText();
+ * # returns: 'Foo/Bar'
+ * @endcode
+ *
+ * @return string Base name
+ */
+ public function getBaseText() {
+ if ( !MWNamespace::hasSubpages( $this->mNamespace ) ) {
+ return $this->getText();
+ }
+
+ $parts = explode( '/', $this->getText() );
+ # Don't discard the real title if there's no subpage involved
+ if ( count( $parts ) > 1 ) {
+ unset( $parts[count( $parts ) - 1] );
+ }
+ return implode( '/', $parts );
+ }
+
+ /**
+ * Get the base page name title, i.e. the part before the subpage name
+ *
+ * @par Example:
+ * @code
+ * Title::newFromText('User:Foo/Bar/Baz')->getBaseTitle();
+ * # returns: Title{User:Foo/Bar}
+ * @endcode
+ *
+ * @return Title Base title
+ * @since 1.20
+ */
+ public function getBaseTitle() {
+ return self::makeTitle( $this->getNamespace(), $this->getBaseText() );
+ }
+
+ /**
+ * Get the lowest-level subpage name, i.e. the rightmost part after any slashes
+ *
+ * @par Example:
+ * @code
+ * Title::newFromText('User:Foo/Bar/Baz')->getSubpageText();
+ * # returns: "Baz"
+ * @endcode
+ *
+ * @return string Subpage name
+ */
+ public function getSubpageText() {
+ if ( !MWNamespace::hasSubpages( $this->mNamespace ) ) {
+ return $this->mTextform;
+ }
+ $parts = explode( '/', $this->mTextform );
+ return $parts[count( $parts ) - 1];
+ }
+
+ /**
+ * Get the title for a subpage of the current page
+ *
+ * @par Example:
+ * @code
+ * Title::newFromText('User:Foo/Bar/Baz')->getSubpage("Asdf");
+ * # returns: Title{User:Foo/Bar/Baz/Asdf}
+ * @endcode
+ *
+ * @param string $text The subpage name to add to the title
+ * @return Title Subpage title
+ * @since 1.20
+ */
+ public function getSubpage( $text ) {
+ return self::makeTitleSafe( $this->getNamespace(), $this->getText() . '/' . $text );
+ }
+
+ /**
+ * Get a URL-encoded form of the subpage text
+ *
+ * @return string URL-encoded subpage name
+ */
+ public function getSubpageUrlForm() {
+ $text = $this->getSubpageText();
+ $text = wfUrlencode( strtr( $text, ' ', '_' ) );
+ return $text;
+ }
+
+ /**
+ * Get a URL-encoded title (not an actual URL) including interwiki
+ *
+ * @return string The URL-encoded form
+ */
+ public function getPrefixedURL() {
+ $s = $this->prefix( $this->mDbkeyform );
+ $s = wfUrlencode( strtr( $s, ' ', '_' ) );
+ return $s;
+ }
+
+ /**
+ * Helper to fix up the get{Canonical,Full,Link,Local,Internal}URL args
+ * get{Canonical,Full,Link,Local,Internal}URL methods accepted an optional
+ * second argument named variant. This was deprecated in favor
+ * of passing an array of option with a "variant" key
+ * Once $query2 is removed for good, this helper can be dropped
+ * and the wfArrayToCgi moved to getLocalURL();
+ *
+ * @since 1.19 (r105919)
+ * @param array|string $query
+ * @param string|string[]|bool $query2
+ * @return string
+ */
+ private static function fixUrlQueryArgs( $query, $query2 = false ) {
+ if ( $query2 !== false ) {
+ wfDeprecated( "Title::get{Canonical,Full,Link,Local,Internal}URL " .
+ "method called with a second parameter is deprecated. Add your " .
+ "parameter to an array passed as the first parameter.", "1.19" );
+ }
+ if ( is_array( $query ) ) {
+ $query = wfArrayToCgi( $query );
+ }
+ if ( $query2 ) {
+ if ( is_string( $query2 ) ) {
+ // $query2 is a string, we will consider this to be
+ // a deprecated $variant argument and add it to the query
+ $query2 = wfArrayToCgi( [ 'variant' => $query2 ] );
+ } else {
+ $query2 = wfArrayToCgi( $query2 );
+ }
+ // If we have $query content add a & to it first
+ if ( $query ) {
+ $query .= '&';
+ }
+ // Now append the queries together
+ $query .= $query2;
+ }
+ return $query;
+ }
+
+ /**
+ * Get a real URL referring to this title, with interwiki link and
+ * fragment
+ *
+ * @see self::getLocalURL for the arguments.
+ * @see wfExpandUrl
+ * @param string|string[] $query
+ * @param string|string[]|bool $query2
+ * @param string $proto Protocol type to use in URL
+ * @return string The URL
+ */
+ public function getFullURL( $query = '', $query2 = false, $proto = PROTO_RELATIVE ) {
+ $query = self::fixUrlQueryArgs( $query, $query2 );
+
+ # Hand off all the decisions on urls to getLocalURL
+ $url = $this->getLocalURL( $query );
+
+ # Expand the url to make it a full url. Note that getLocalURL has the
+ # potential to output full urls for a variety of reasons, so we use
+ # wfExpandUrl instead of simply prepending $wgServer
+ $url = wfExpandUrl( $url, $proto );
+
+ # Finally, add the fragment.
+ $url .= $this->getFragmentForURL();
+ // Avoid PHP 7.1 warning from passing $this by reference
+ $titleRef = $this;
+ Hooks::run( 'GetFullURL', [ &$titleRef, &$url, $query ] );
+ return $url;
+ }
+
+ /**
+ * Get a url appropriate for making redirects based on an untrusted url arg
+ *
+ * This is basically the same as getFullUrl(), but in the case of external
+ * interwikis, we send the user to a landing page, to prevent possible
+ * phishing attacks and the like.
+ *
+ * @note Uses current protocol by default, since technically relative urls
+ * aren't allowed in redirects per HTTP spec, so this is not suitable for
+ * places where the url gets cached, as might pollute between
+ * https and non-https users.
+ * @see self::getLocalURL for the arguments.
+ * @param array|string $query
+ * @param string $proto Protocol type to use in URL
+ * @return string A url suitable to use in an HTTP location header.
+ */
+ public function getFullUrlForRedirect( $query = '', $proto = PROTO_CURRENT ) {
+ $target = $this;
+ if ( $this->isExternal() ) {
+ $target = SpecialPage::getTitleFor(
+ 'GoToInterwiki',
+ $this->getPrefixedDBKey()
+ );
+ }
+ return $target->getFullUrl( $query, false, $proto );
+ }
+
+ /**
+ * Get a URL with no fragment or server name (relative URL) from a Title object.
+ * If this page is generated with action=render, however,
+ * $wgServer is prepended to make an absolute URL.
+ *
+ * @see self::getFullURL to always get an absolute URL.
+ * @see self::getLinkURL to always get a URL that's the simplest URL that will be
+ * valid to link, locally, to the current Title.
+ * @see self::newFromText to produce a Title object.
+ *
+ * @param string|string[] $query An optional query string,
+ * not used for interwiki links. Can be specified as an associative array as well,
+ * e.g., array( 'action' => 'edit' ) (keys and values will be URL-escaped).
+ * Some query patterns will trigger various shorturl path replacements.
+ * @param string|string[]|bool $query2 An optional secondary query array. This one MUST
+ * be an array. If a string is passed it will be interpreted as a deprecated
+ * variant argument and urlencoded into a variant= argument.
+ * This second query argument will be added to the $query
+ * The second parameter is deprecated since 1.19. Pass it as a key,value
+ * pair in the first parameter array instead.
+ *
+ * @return string String of the URL.
+ */
+ public function getLocalURL( $query = '', $query2 = false ) {
+ global $wgArticlePath, $wgScript, $wgServer, $wgRequest;
+
+ $query = self::fixUrlQueryArgs( $query, $query2 );
+
+ $interwiki = self::getInterwikiLookup()->fetch( $this->mInterwiki );
+ if ( $interwiki ) {
+ $namespace = $this->getNsText();
+ if ( $namespace != '' ) {
+ # Can this actually happen? Interwikis shouldn't be parsed.
+ # Yes! It can in interwiki transclusion. But... it probably shouldn't.
+ $namespace .= ':';
+ }
+ $url = $interwiki->getURL( $namespace . $this->getDBkey() );
+ $url = wfAppendQuery( $url, $query );
+ } else {
+ $dbkey = wfUrlencode( $this->getPrefixedDBkey() );
+ if ( $query == '' ) {
+ $url = str_replace( '$1', $dbkey, $wgArticlePath );
+ // Avoid PHP 7.1 warning from passing $this by reference
+ $titleRef = $this;
+ Hooks::run( 'GetLocalURL::Article', [ &$titleRef, &$url ] );
+ } else {
+ global $wgVariantArticlePath, $wgActionPaths, $wgContLang;
+ $url = false;
+ $matches = [];
+
+ if ( !empty( $wgActionPaths )
+ && preg_match( '/^(.*&|)action=([^&]*)(&(.*)|)$/', $query, $matches )
+ ) {
+ $action = urldecode( $matches[2] );
+ if ( isset( $wgActionPaths[$action] ) ) {
+ $query = $matches[1];
+ if ( isset( $matches[4] ) ) {
+ $query .= $matches[4];
+ }
+ $url = str_replace( '$1', $dbkey, $wgActionPaths[$action] );
+ if ( $query != '' ) {
+ $url = wfAppendQuery( $url, $query );
+ }
+ }
+ }
+
+ if ( $url === false
+ && $wgVariantArticlePath
+ && preg_match( '/^variant=([^&]*)$/', $query, $matches )
+ && $this->getPageLanguage()->equals( $wgContLang )
+ && $this->getPageLanguage()->hasVariants()
+ ) {
+ $variant = urldecode( $matches[1] );
+ if ( $this->getPageLanguage()->hasVariant( $variant ) ) {
+ // Only do the variant replacement if the given variant is a valid
+ // variant for the page's language.
+ $url = str_replace( '$2', urlencode( $variant ), $wgVariantArticlePath );
+ $url = str_replace( '$1', $dbkey, $url );
+ }
+ }
+
+ if ( $url === false ) {
+ if ( $query == '-' ) {
+ $query = '';
+ }
+ $url = "{$wgScript}?title={$dbkey}&{$query}";
+ }
+ }
+ // Avoid PHP 7.1 warning from passing $this by reference
+ $titleRef = $this;
+ Hooks::run( 'GetLocalURL::Internal', [ &$titleRef, &$url, $query ] );
+
+ // @todo FIXME: This causes breakage in various places when we
+ // actually expected a local URL and end up with dupe prefixes.
+ if ( $wgRequest->getVal( 'action' ) == 'render' ) {
+ $url = $wgServer . $url;
+ }
+ }
+ // Avoid PHP 7.1 warning from passing $this by reference
+ $titleRef = $this;
+ Hooks::run( 'GetLocalURL', [ &$titleRef, &$url, $query ] );
+ return $url;
+ }
+
+ /**
+ * Get a URL that's the simplest URL that will be valid to link, locally,
+ * to the current Title. It includes the fragment, but does not include
+ * the server unless action=render is used (or the link is external). If
+ * there's a fragment but the prefixed text is empty, we just return a link
+ * to the fragment.
+ *
+ * The result obviously should not be URL-escaped, but does need to be
+ * HTML-escaped if it's being output in HTML.
+ *
+ * @param string|string[] $query
+ * @param bool $query2
+ * @param string|int|bool $proto A PROTO_* constant on how the URL should be expanded,
+ * or false (default) for no expansion
+ * @see self::getLocalURL for the arguments.
+ * @return string The URL
+ */
+ public function getLinkURL( $query = '', $query2 = false, $proto = false ) {
+ if ( $this->isExternal() || $proto !== false ) {
+ $ret = $this->getFullURL( $query, $query2, $proto );
+ } elseif ( $this->getPrefixedText() === '' && $this->hasFragment() ) {
+ $ret = $this->getFragmentForURL();
+ } else {
+ $ret = $this->getLocalURL( $query, $query2 ) . $this->getFragmentForURL();
+ }
+ return $ret;
+ }
+
+ /**
+ * Get the URL form for an internal link.
+ * - Used in various CDN-related code, in case we have a different
+ * internal hostname for the server from the exposed one.
+ *
+ * This uses $wgInternalServer to qualify the path, or $wgServer
+ * if $wgInternalServer is not set. If the server variable used is
+ * protocol-relative, the URL will be expanded to http://
+ *
+ * @see self::getLocalURL for the arguments.
+ * @param string $query
+ * @param string|bool $query2
+ * @return string The URL
+ */
+ public function getInternalURL( $query = '', $query2 = false ) {
+ global $wgInternalServer, $wgServer;
+ $query = self::fixUrlQueryArgs( $query, $query2 );
+ $server = $wgInternalServer !== false ? $wgInternalServer : $wgServer;
+ $url = wfExpandUrl( $server . $this->getLocalURL( $query ), PROTO_HTTP );
+ // Avoid PHP 7.1 warning from passing $this by reference
+ $titleRef = $this;
+ Hooks::run( 'GetInternalURL', [ &$titleRef, &$url, $query ] );
+ return $url;
+ }
+
+ /**
+ * Get the URL for a canonical link, for use in things like IRC and
+ * e-mail notifications. Uses $wgCanonicalServer and the
+ * GetCanonicalURL hook.
+ *
+ * NOTE: Unlike getInternalURL(), the canonical URL includes the fragment
+ *
+ * @see self::getLocalURL for the arguments.
+ * @param string $query
+ * @param string|bool $query2
+ * @return string The URL
+ * @since 1.18
+ */
+ public function getCanonicalURL( $query = '', $query2 = false ) {
+ $query = self::fixUrlQueryArgs( $query, $query2 );
+ $url = wfExpandUrl( $this->getLocalURL( $query ) . $this->getFragmentForURL(), PROTO_CANONICAL );
+ // Avoid PHP 7.1 warning from passing $this by reference
+ $titleRef = $this;
+ Hooks::run( 'GetCanonicalURL', [ &$titleRef, &$url, $query ] );
+ return $url;
+ }
+
+ /**
+ * Get the edit URL for this Title
+ *
+ * @return string The URL, or a null string if this is an interwiki link
+ */
+ public function getEditURL() {
+ if ( $this->isExternal() ) {
+ return '';
+ }
+ $s = $this->getLocalURL( 'action=edit' );
+
+ return $s;
+ }
+
+ /**
+ * Can $user perform $action on this page?
+ * This skips potentially expensive cascading permission checks
+ * as well as avoids expensive error formatting
+ *
+ * Suitable for use for nonessential UI controls in common cases, but
+ * _not_ for functional access control.
+ *
+ * May provide false positives, but should never provide a false negative.
+ *
+ * @param string $action Action that permission needs to be checked for
+ * @param User $user User to check (since 1.19); $wgUser will be used if not provided.
+ * @return bool
+ */
+ public function quickUserCan( $action, $user = null ) {
+ return $this->userCan( $action, $user, false );
+ }
+
+ /**
+ * Can $user perform $action on this page?
+ *
+ * @param string $action Action that permission needs to be checked for
+ * @param User $user User to check (since 1.19); $wgUser will be used if not
+ * provided.
+ * @param string $rigor Same format as Title::getUserPermissionsErrors()
+ * @return bool
+ */
+ public function userCan( $action, $user = null, $rigor = 'secure' ) {
+ if ( !$user instanceof User ) {
+ global $wgUser;
+ $user = $wgUser;
+ }
+
+ return !count( $this->getUserPermissionsErrorsInternal( $action, $user, $rigor, true ) );
+ }
+
+ /**
+ * Can $user perform $action on this page?
+ *
+ * @todo FIXME: This *does not* check throttles (User::pingLimiter()).
+ *
+ * @param string $action Action that permission needs to be checked for
+ * @param User $user User to check
+ * @param string $rigor One of (quick,full,secure)
+ * - quick : does cheap permission checks from replica DBs (usable for GUI creation)
+ * - full : does cheap and expensive checks possibly from a replica DB
+ * - secure : does cheap and expensive checks, using the master as needed
+ * @param array $ignoreErrors Array of Strings Set this to a list of message keys
+ * whose corresponding errors may be ignored.
+ * @return array Array of arrays of the arguments to wfMessage to explain permissions problems.
+ */
+ public function getUserPermissionsErrors(
+ $action, $user, $rigor = 'secure', $ignoreErrors = []
+ ) {
+ $errors = $this->getUserPermissionsErrorsInternal( $action, $user, $rigor );
+
+ // Remove the errors being ignored.
+ foreach ( $errors as $index => $error ) {
+ $errKey = is_array( $error ) ? $error[0] : $error;
+
+ if ( in_array( $errKey, $ignoreErrors ) ) {
+ unset( $errors[$index] );
+ }
+ if ( $errKey instanceof MessageSpecifier && in_array( $errKey->getKey(), $ignoreErrors ) ) {
+ unset( $errors[$index] );
+ }
+ }
+
+ return $errors;
+ }
+
+ /**
+ * Permissions checks that fail most often, and which are easiest to test.
+ *
+ * @param string $action The action to check
+ * @param User $user User to check
+ * @param array $errors List of current errors
+ * @param string $rigor Same format as Title::getUserPermissionsErrors()
+ * @param bool $short Short circuit on first error
+ *
+ * @return array List of errors
+ */
+ private function checkQuickPermissions( $action, $user, $errors, $rigor, $short ) {
+ if ( !Hooks::run( 'TitleQuickPermissions',
+ [ $this, $user, $action, &$errors, ( $rigor !== 'quick' ), $short ] )
+ ) {
+ return $errors;
+ }
+
+ if ( $action == 'create' ) {
+ if (
+ ( $this->isTalkPage() && !$user->isAllowed( 'createtalk' ) ) ||
+ ( !$this->isTalkPage() && !$user->isAllowed( 'createpage' ) )
+ ) {
+ $errors[] = $user->isAnon() ? [ 'nocreatetext' ] : [ 'nocreate-loggedin' ];
+ }
+ } elseif ( $action == 'move' ) {
+ if ( !$user->isAllowed( 'move-rootuserpages' )
+ && $this->mNamespace == NS_USER && !$this->isSubpage() ) {
+ // Show user page-specific message only if the user can move other pages
+ $errors[] = [ 'cant-move-user-page' ];
+ }
+
+ // Check if user is allowed to move files if it's a file
+ if ( $this->mNamespace == NS_FILE && !$user->isAllowed( 'movefile' ) ) {
+ $errors[] = [ 'movenotallowedfile' ];
+ }
+
+ // Check if user is allowed to move category pages if it's a category page
+ if ( $this->mNamespace == NS_CATEGORY && !$user->isAllowed( 'move-categorypages' ) ) {
+ $errors[] = [ 'cant-move-category-page' ];
+ }
+
+ if ( !$user->isAllowed( 'move' ) ) {
+ // User can't move anything
+ $userCanMove = User::groupHasPermission( 'user', 'move' );
+ $autoconfirmedCanMove = User::groupHasPermission( 'autoconfirmed', 'move' );
+ if ( $user->isAnon() && ( $userCanMove || $autoconfirmedCanMove ) ) {
+ // custom message if logged-in users without any special rights can move
+ $errors[] = [ 'movenologintext' ];
+ } else {
+ $errors[] = [ 'movenotallowed' ];
+ }
+ }
+ } elseif ( $action == 'move-target' ) {
+ if ( !$user->isAllowed( 'move' ) ) {
+ // User can't move anything
+ $errors[] = [ 'movenotallowed' ];
+ } elseif ( !$user->isAllowed( 'move-rootuserpages' )
+ && $this->mNamespace == NS_USER && !$this->isSubpage() ) {
+ // Show user page-specific message only if the user can move other pages
+ $errors[] = [ 'cant-move-to-user-page' ];
+ } elseif ( !$user->isAllowed( 'move-categorypages' )
+ && $this->mNamespace == NS_CATEGORY ) {
+ // Show category page-specific message only if the user can move other pages
+ $errors[] = [ 'cant-move-to-category-page' ];
+ }
+ } elseif ( !$user->isAllowed( $action ) ) {
+ $errors[] = $this->missingPermissionError( $action, $short );
+ }
+
+ return $errors;
+ }
+
+ /**
+ * Add the resulting error code to the errors array
+ *
+ * @param array $errors List of current errors
+ * @param array $result Result of errors
+ *
+ * @return array List of errors
+ */
+ private function resultToError( $errors, $result ) {
+ if ( is_array( $result ) && count( $result ) && !is_array( $result[0] ) ) {
+ // A single array representing an error
+ $errors[] = $result;
+ } elseif ( is_array( $result ) && is_array( $result[0] ) ) {
+ // A nested array representing multiple errors
+ $errors = array_merge( $errors, $result );
+ } elseif ( $result !== '' && is_string( $result ) ) {
+ // A string representing a message-id
+ $errors[] = [ $result ];
+ } elseif ( $result instanceof MessageSpecifier ) {
+ // A message specifier representing an error
+ $errors[] = [ $result ];
+ } elseif ( $result === false ) {
+ // a generic "We don't want them to do that"
+ $errors[] = [ 'badaccess-group0' ];
+ }
+ return $errors;
+ }
+
+ /**
+ * Check various permission hooks
+ *
+ * @param string $action The action to check
+ * @param User $user User to check
+ * @param array $errors List of current errors
+ * @param string $rigor Same format as Title::getUserPermissionsErrors()
+ * @param bool $short Short circuit on first error
+ *
+ * @return array List of errors
+ */
+ private function checkPermissionHooks( $action, $user, $errors, $rigor, $short ) {
+ // Use getUserPermissionsErrors instead
+ $result = '';
+ // Avoid PHP 7.1 warning from passing $this by reference
+ $titleRef = $this;
+ if ( !Hooks::run( 'userCan', [ &$titleRef, &$user, $action, &$result ] ) ) {
+ return $result ? [] : [ [ 'badaccess-group0' ] ];
+ }
+ // Check getUserPermissionsErrors hook
+ // Avoid PHP 7.1 warning from passing $this by reference
+ $titleRef = $this;
+ if ( !Hooks::run( 'getUserPermissionsErrors', [ &$titleRef, &$user, $action, &$result ] ) ) {
+ $errors = $this->resultToError( $errors, $result );
+ }
+ // Check getUserPermissionsErrorsExpensive hook
+ if (
+ $rigor !== 'quick'
+ && !( $short && count( $errors ) > 0 )
+ && !Hooks::run( 'getUserPermissionsErrorsExpensive', [ &$titleRef, &$user, $action, &$result ] )
+ ) {
+ $errors = $this->resultToError( $errors, $result );
+ }
+
+ return $errors;
+ }
+
+ /**
+ * Check permissions on special pages & namespaces
+ *
+ * @param string $action The action to check
+ * @param User $user User to check
+ * @param array $errors List of current errors
+ * @param string $rigor Same format as Title::getUserPermissionsErrors()
+ * @param bool $short Short circuit on first error
+ *
+ * @return array List of errors
+ */
+ private function checkSpecialsAndNSPermissions( $action, $user, $errors, $rigor, $short ) {
+ # Only 'createaccount' can be performed on special pages,
+ # which don't actually exist in the DB.
+ if ( $this->isSpecialPage() && $action !== 'createaccount' ) {
+ $errors[] = [ 'ns-specialprotected' ];
+ }
+
+ # Check $wgNamespaceProtection for restricted namespaces
+ if ( $this->isNamespaceProtected( $user ) ) {
+ $ns = $this->mNamespace == NS_MAIN ?
+ wfMessage( 'nstab-main' )->text() : $this->getNsText();
+ $errors[] = $this->mNamespace == NS_MEDIAWIKI ?
+ [ 'protectedinterface', $action ] : [ 'namespaceprotected', $ns, $action ];
+ }
+
+ return $errors;
+ }
+
+ /**
+ * Check CSS/JS sub-page permissions
+ *
+ * @param string $action The action to check
+ * @param User $user User to check
+ * @param array $errors List of current errors
+ * @param string $rigor Same format as Title::getUserPermissionsErrors()
+ * @param bool $short Short circuit on first error
+ *
+ * @return array List of errors
+ */
+ private function checkCSSandJSPermissions( $action, $user, $errors, $rigor, $short ) {
+ # Protect css/js subpages of user pages
+ # XXX: this might be better using restrictions
+ if ( $action != 'patrol' ) {
+ if ( preg_match( '/^' . preg_quote( $user->getName(), '/' ) . '\//', $this->mTextform ) ) {
+ if ( $this->isCssSubpage() && !$user->isAllowedAny( 'editmyusercss', 'editusercss' ) ) {
+ $errors[] = [ 'mycustomcssprotected', $action ];
+ } elseif ( $this->isJsSubpage() && !$user->isAllowedAny( 'editmyuserjs', 'edituserjs' ) ) {
+ $errors[] = [ 'mycustomjsprotected', $action ];
+ }
+ } else {
+ if ( $this->isCssSubpage() && !$user->isAllowed( 'editusercss' ) ) {
+ $errors[] = [ 'customcssprotected', $action ];
+ } elseif ( $this->isJsSubpage() && !$user->isAllowed( 'edituserjs' ) ) {
+ $errors[] = [ 'customjsprotected', $action ];
+ }
+ }
+ }
+
+ return $errors;
+ }
+
+ /**
+ * Check against page_restrictions table requirements on this
+ * page. The user must possess all required rights for this
+ * action.
+ *
+ * @param string $action The action to check
+ * @param User $user User to check
+ * @param array $errors List of current errors
+ * @param string $rigor Same format as Title::getUserPermissionsErrors()
+ * @param bool $short Short circuit on first error
+ *
+ * @return array List of errors
+ */
+ private function checkPageRestrictions( $action, $user, $errors, $rigor, $short ) {
+ foreach ( $this->getRestrictions( $action ) as $right ) {
+ // Backwards compatibility, rewrite sysop -> editprotected
+ if ( $right == 'sysop' ) {
+ $right = 'editprotected';
+ }
+ // Backwards compatibility, rewrite autoconfirmed -> editsemiprotected
+ if ( $right == 'autoconfirmed' ) {
+ $right = 'editsemiprotected';
+ }
+ if ( $right == '' ) {
+ continue;
+ }
+ if ( !$user->isAllowed( $right ) ) {
+ $errors[] = [ 'protectedpagetext', $right, $action ];
+ } elseif ( $this->mCascadeRestriction && !$user->isAllowed( 'protect' ) ) {
+ $errors[] = [ 'protectedpagetext', 'protect', $action ];
+ }
+ }
+
+ return $errors;
+ }
+
+ /**
+ * Check restrictions on cascading pages.
+ *
+ * @param string $action The action to check
+ * @param User $user User to check
+ * @param array $errors List of current errors
+ * @param string $rigor Same format as Title::getUserPermissionsErrors()
+ * @param bool $short Short circuit on first error
+ *
+ * @return array List of errors
+ */
+ private function checkCascadingSourcesRestrictions( $action, $user, $errors, $rigor, $short ) {
+ if ( $rigor !== 'quick' && !$this->isCssJsSubpage() ) {
+ # We /could/ use the protection level on the source page, but it's
+ # fairly ugly as we have to establish a precedence hierarchy for pages
+ # included by multiple cascade-protected pages. So just restrict
+ # it to people with 'protect' permission, as they could remove the
+ # protection anyway.
+ list( $cascadingSources, $restrictions ) = $this->getCascadeProtectionSources();
+ # Cascading protection depends on more than this page...
+ # Several cascading protected pages may include this page...
+ # Check each cascading level
+ # This is only for protection restrictions, not for all actions
+ if ( isset( $restrictions[$action] ) ) {
+ foreach ( $restrictions[$action] as $right ) {
+ // Backwards compatibility, rewrite sysop -> editprotected
+ if ( $right == 'sysop' ) {
+ $right = 'editprotected';
+ }
+ // Backwards compatibility, rewrite autoconfirmed -> editsemiprotected
+ if ( $right == 'autoconfirmed' ) {
+ $right = 'editsemiprotected';
+ }
+ if ( $right != '' && !$user->isAllowedAll( 'protect', $right ) ) {
+ $pages = '';
+ foreach ( $cascadingSources as $page ) {
+ $pages .= '* [[:' . $page->getPrefixedText() . "]]\n";
+ }
+ $errors[] = [ 'cascadeprotected', count( $cascadingSources ), $pages, $action ];
+ }
+ }
+ }
+ }
+
+ return $errors;
+ }
+
+ /**
+ * Check action permissions not already checked in checkQuickPermissions
+ *
+ * @param string $action The action to check
+ * @param User $user User to check
+ * @param array $errors List of current errors
+ * @param string $rigor Same format as Title::getUserPermissionsErrors()
+ * @param bool $short Short circuit on first error
+ *
+ * @return array List of errors
+ */
+ private function checkActionPermissions( $action, $user, $errors, $rigor, $short ) {
+ global $wgDeleteRevisionsLimit, $wgLang;
+
+ if ( $action == 'protect' ) {
+ if ( count( $this->getUserPermissionsErrorsInternal( 'edit', $user, $rigor, true ) ) ) {
+ // If they can't edit, they shouldn't protect.
+ $errors[] = [ 'protect-cantedit' ];
+ }
+ } elseif ( $action == 'create' ) {
+ $title_protection = $this->getTitleProtection();
+ if ( $title_protection ) {
+ if ( $title_protection['permission'] == ''
+ || !$user->isAllowed( $title_protection['permission'] )
+ ) {
+ $errors[] = [
+ 'titleprotected',
+ User::whoIs( $title_protection['user'] ),
+ $title_protection['reason']
+ ];
+ }
+ }
+ } elseif ( $action == 'move' ) {
+ // Check for immobile pages
+ if ( !MWNamespace::isMovable( $this->mNamespace ) ) {
+ // Specific message for this case
+ $errors[] = [ 'immobile-source-namespace', $this->getNsText() ];
+ } elseif ( !$this->isMovable() ) {
+ // Less specific message for rarer cases
+ $errors[] = [ 'immobile-source-page' ];
+ }
+ } elseif ( $action == 'move-target' ) {
+ if ( !MWNamespace::isMovable( $this->mNamespace ) ) {
+ $errors[] = [ 'immobile-target-namespace', $this->getNsText() ];
+ } elseif ( !$this->isMovable() ) {
+ $errors[] = [ 'immobile-target-page' ];
+ }
+ } elseif ( $action == 'delete' ) {
+ $tempErrors = $this->checkPageRestrictions( 'edit', $user, [], $rigor, true );
+ if ( !$tempErrors ) {
+ $tempErrors = $this->checkCascadingSourcesRestrictions( 'edit',
+ $user, $tempErrors, $rigor, true );
+ }
+ if ( $tempErrors ) {
+ // If protection keeps them from editing, they shouldn't be able to delete.
+ $errors[] = [ 'deleteprotected' ];
+ }
+ if ( $rigor !== 'quick' && $wgDeleteRevisionsLimit
+ && !$this->userCan( 'bigdelete', $user ) && $this->isBigDeletion()
+ ) {
+ $errors[] = [ 'delete-toobig', $wgLang->formatNum( $wgDeleteRevisionsLimit ) ];
+ }
+ } elseif ( $action === 'undelete' ) {
+ if ( count( $this->getUserPermissionsErrorsInternal( 'edit', $user, $rigor, true ) ) ) {
+ // Undeleting implies editing
+ $errors[] = [ 'undelete-cantedit' ];
+ }
+ if ( !$this->exists()
+ && count( $this->getUserPermissionsErrorsInternal( 'create', $user, $rigor, true ) )
+ ) {
+ // Undeleting where nothing currently exists implies creating
+ $errors[] = [ 'undelete-cantcreate' ];
+ }
+ }
+ return $errors;
+ }
+
+ /**
+ * Check that the user isn't blocked from editing.
+ *
+ * @param string $action The action to check
+ * @param User $user User to check
+ * @param array $errors List of current errors
+ * @param string $rigor Same format as Title::getUserPermissionsErrors()
+ * @param bool $short Short circuit on first error
+ *
+ * @return array List of errors
+ */
+ private function checkUserBlock( $action, $user, $errors, $rigor, $short ) {
+ global $wgEmailConfirmToEdit, $wgBlockDisablesLogin;
+ // Account creation blocks handled at userlogin.
+ // Unblocking handled in SpecialUnblock
+ if ( $rigor === 'quick' || in_array( $action, [ 'createaccount', 'unblock' ] ) ) {
+ return $errors;
+ }
+
+ // Optimize for a very common case
+ if ( $action === 'read' && !$wgBlockDisablesLogin ) {
+ return $errors;
+ }
+
+ if ( $wgEmailConfirmToEdit
+ && !$user->isEmailConfirmed()
+ && $action === 'edit'
+ ) {
+ $errors[] = [ 'confirmedittext' ];
+ }
+
+ $useSlave = ( $rigor !== 'secure' );
+ if ( ( $action == 'edit' || $action == 'create' )
+ && !$user->isBlockedFrom( $this, $useSlave )
+ ) {
+ // Don't block the user from editing their own talk page unless they've been
+ // explicitly blocked from that too.
+ } elseif ( $user->isBlocked() && $user->getBlock()->prevents( $action ) !== false ) {
+ // @todo FIXME: Pass the relevant context into this function.
+ $errors[] = $user->getBlock()->getPermissionsError( RequestContext::getMain() );
+ }
+
+ return $errors;
+ }
+
+ /**
+ * Check that the user is allowed to read this page.
+ *
+ * @param string $action The action to check
+ * @param User $user User to check
+ * @param array $errors List of current errors
+ * @param string $rigor Same format as Title::getUserPermissionsErrors()
+ * @param bool $short Short circuit on first error
+ *
+ * @return array List of errors
+ */
+ private function checkReadPermissions( $action, $user, $errors, $rigor, $short ) {
+ global $wgWhitelistRead, $wgWhitelistReadRegexp;
+
+ $whitelisted = false;
+ if ( User::isEveryoneAllowed( 'read' ) ) {
+ # Shortcut for public wikis, allows skipping quite a bit of code
+ $whitelisted = true;
+ } elseif ( $user->isAllowed( 'read' ) ) {
+ # If the user is allowed to read pages, he is allowed to read all pages
+ $whitelisted = true;
+ } elseif ( $this->isSpecial( 'Userlogin' )
+ || $this->isSpecial( 'PasswordReset' )
+ || $this->isSpecial( 'Userlogout' )
+ ) {
+ # Always grant access to the login page.
+ # Even anons need to be able to log in.
+ $whitelisted = true;
+ } elseif ( is_array( $wgWhitelistRead ) && count( $wgWhitelistRead ) ) {
+ # Time to check the whitelist
+ # Only do these checks is there's something to check against
+ $name = $this->getPrefixedText();
+ $dbName = $this->getPrefixedDBkey();
+
+ // Check for explicit whitelisting with and without underscores
+ if ( in_array( $name, $wgWhitelistRead, true ) || in_array( $dbName, $wgWhitelistRead, true ) ) {
+ $whitelisted = true;
+ } elseif ( $this->getNamespace() == NS_MAIN ) {
+ # Old settings might have the title prefixed with
+ # a colon for main-namespace pages
+ if ( in_array( ':' . $name, $wgWhitelistRead ) ) {
+ $whitelisted = true;
+ }
+ } elseif ( $this->isSpecialPage() ) {
+ # If it's a special page, ditch the subpage bit and check again
+ $name = $this->getDBkey();
+ list( $name, /* $subpage */ ) = SpecialPageFactory::resolveAlias( $name );
+ if ( $name ) {
+ $pure = SpecialPage::getTitleFor( $name )->getPrefixedText();
+ if ( in_array( $pure, $wgWhitelistRead, true ) ) {
+ $whitelisted = true;
+ }
+ }
+ }
+ }
+
+ if ( !$whitelisted && is_array( $wgWhitelistReadRegexp ) && !empty( $wgWhitelistReadRegexp ) ) {
+ $name = $this->getPrefixedText();
+ // Check for regex whitelisting
+ foreach ( $wgWhitelistReadRegexp as $listItem ) {
+ if ( preg_match( $listItem, $name ) ) {
+ $whitelisted = true;
+ break;
+ }
+ }
+ }
+
+ if ( !$whitelisted ) {
+ # If the title is not whitelisted, give extensions a chance to do so...
+ Hooks::run( 'TitleReadWhitelist', [ $this, $user, &$whitelisted ] );
+ if ( !$whitelisted ) {
+ $errors[] = $this->missingPermissionError( $action, $short );
+ }
+ }
+
+ return $errors;
+ }
+
+ /**
+ * Get a description array when the user doesn't have the right to perform
+ * $action (i.e. when User::isAllowed() returns false)
+ *
+ * @param string $action The action to check
+ * @param bool $short Short circuit on first error
+ * @return array Array containing an error message key and any parameters
+ */
+ private function missingPermissionError( $action, $short ) {
+ // We avoid expensive display logic for quickUserCan's and such
+ if ( $short ) {
+ return [ 'badaccess-group0' ];
+ }
+
+ return User::newFatalPermissionDeniedStatus( $action )->getErrorsArray()[0];
+ }
+
+ /**
+ * Can $user perform $action on this page? This is an internal function,
+ * with multiple levels of checks depending on performance needs; see $rigor below.
+ * It does not check wfReadOnly().
+ *
+ * @param string $action Action that permission needs to be checked for
+ * @param User $user User to check
+ * @param string $rigor One of (quick,full,secure)
+ * - quick : does cheap permission checks from replica DBs (usable for GUI creation)
+ * - full : does cheap and expensive checks possibly from a replica DB
+ * - secure : does cheap and expensive checks, using the master as needed
+ * @param bool $short Set this to true to stop after the first permission error.
+ * @return array Array of arrays of the arguments to wfMessage to explain permissions problems.
+ */
+ protected function getUserPermissionsErrorsInternal(
+ $action, $user, $rigor = 'secure', $short = false
+ ) {
+ if ( $rigor === true ) {
+ $rigor = 'secure'; // b/c
+ } elseif ( $rigor === false ) {
+ $rigor = 'quick'; // b/c
+ } elseif ( !in_array( $rigor, [ 'quick', 'full', 'secure' ] ) ) {
+ throw new Exception( "Invalid rigor parameter '$rigor'." );
+ }
+
+ # Read has special handling
+ if ( $action == 'read' ) {
+ $checks = [
+ 'checkPermissionHooks',
+ 'checkReadPermissions',
+ 'checkUserBlock', // for wgBlockDisablesLogin
+ ];
+ # Don't call checkSpecialsAndNSPermissions or checkCSSandJSPermissions
+ # here as it will lead to duplicate error messages. This is okay to do
+ # since anywhere that checks for create will also check for edit, and
+ # those checks are called for edit.
+ } elseif ( $action == 'create' ) {
+ $checks = [
+ 'checkQuickPermissions',
+ 'checkPermissionHooks',
+ 'checkPageRestrictions',
+ 'checkCascadingSourcesRestrictions',
+ 'checkActionPermissions',
+ 'checkUserBlock'
+ ];
+ } else {
+ $checks = [
+ 'checkQuickPermissions',
+ 'checkPermissionHooks',
+ 'checkSpecialsAndNSPermissions',
+ 'checkCSSandJSPermissions',
+ 'checkPageRestrictions',
+ 'checkCascadingSourcesRestrictions',
+ 'checkActionPermissions',
+ 'checkUserBlock'
+ ];
+ }
+
+ $errors = [];
+ while ( count( $checks ) > 0 &&
+ !( $short && count( $errors ) > 0 ) ) {
+ $method = array_shift( $checks );
+ $errors = $this->$method( $action, $user, $errors, $rigor, $short );
+ }
+
+ return $errors;
+ }
+
+ /**
+ * Get a filtered list of all restriction types supported by this wiki.
+ * @param bool $exists True to get all restriction types that apply to
+ * titles that do exist, False for all restriction types that apply to
+ * titles that do not exist
+ * @return array
+ */
+ public static function getFilteredRestrictionTypes( $exists = true ) {
+ global $wgRestrictionTypes;
+ $types = $wgRestrictionTypes;
+ if ( $exists ) {
+ # Remove the create restriction for existing titles
+ $types = array_diff( $types, [ 'create' ] );
+ } else {
+ # Only the create and upload restrictions apply to non-existing titles
+ $types = array_intersect( $types, [ 'create', 'upload' ] );
+ }
+ return $types;
+ }
+
+ /**
+ * Returns restriction types for the current Title
+ *
+ * @return array Applicable restriction types
+ */
+ public function getRestrictionTypes() {
+ if ( $this->isSpecialPage() ) {
+ return [];
+ }
+
+ $types = self::getFilteredRestrictionTypes( $this->exists() );
+
+ if ( $this->getNamespace() != NS_FILE ) {
+ # Remove the upload restriction for non-file titles
+ $types = array_diff( $types, [ 'upload' ] );
+ }
+
+ Hooks::run( 'TitleGetRestrictionTypes', [ $this, &$types ] );
+
+ wfDebug( __METHOD__ . ': applicable restrictions to [[' .
+ $this->getPrefixedText() . ']] are {' . implode( ',', $types ) . "}\n" );
+
+ return $types;
+ }
+
+ /**
+ * Is this title subject to title protection?
+ * Title protection is the one applied against creation of such title.
+ *
+ * @return array|bool An associative array representing any existent title
+ * protection, or false if there's none.
+ */
+ public function getTitleProtection() {
+ $protection = $this->getTitleProtectionInternal();
+ if ( $protection ) {
+ if ( $protection['permission'] == 'sysop' ) {
+ $protection['permission'] = 'editprotected'; // B/C
+ }
+ if ( $protection['permission'] == 'autoconfirmed' ) {
+ $protection['permission'] = 'editsemiprotected'; // B/C
+ }
+ }
+ return $protection;
+ }
+
+ /**
+ * Fetch title protection settings
+ *
+ * To work correctly, $this->loadRestrictions() needs to have access to the
+ * actual protections in the database without munging 'sysop' =>
+ * 'editprotected' and 'autoconfirmed' => 'editsemiprotected'. Other
+ * callers probably want $this->getTitleProtection() instead.
+ *
+ * @return array|bool
+ */
+ protected function getTitleProtectionInternal() {
+ // Can't protect pages in special namespaces
+ if ( $this->getNamespace() < 0 ) {
+ return false;
+ }
+
+ // Can't protect pages that exist.
+ if ( $this->exists() ) {
+ return false;
+ }
+
+ if ( $this->mTitleProtection === null ) {
+ $dbr = wfGetDB( DB_REPLICA );
+ $commentStore = new CommentStore( 'pt_reason' );
+ $commentQuery = $commentStore->getJoin();
+ $res = $dbr->select(
+ [ 'protected_titles' ] + $commentQuery['tables'],
+ [
+ 'user' => 'pt_user',
+ 'expiry' => 'pt_expiry',
+ 'permission' => 'pt_create_perm'
+ ] + $commentQuery['fields'],
+ [ 'pt_namespace' => $this->getNamespace(), 'pt_title' => $this->getDBkey() ],
+ __METHOD__,
+ [],
+ $commentQuery['joins']
+ );
+
+ // fetchRow returns false if there are no rows.
+ $row = $dbr->fetchRow( $res );
+ if ( $row ) {
+ $this->mTitleProtection = [
+ 'user' => $row['user'],
+ 'expiry' => $dbr->decodeExpiry( $row['expiry'] ),
+ 'permission' => $row['permission'],
+ 'reason' => $commentStore->getComment( $row )->text,
+ ];
+ } else {
+ $this->mTitleProtection = false;
+ }
+ }
+ return $this->mTitleProtection;
+ }
+
+ /**
+ * Remove any title protection due to page existing
+ */
+ public function deleteTitleProtection() {
+ $dbw = wfGetDB( DB_MASTER );
+
+ $dbw->delete(
+ 'protected_titles',
+ [ 'pt_namespace' => $this->getNamespace(), 'pt_title' => $this->getDBkey() ],
+ __METHOD__
+ );
+ $this->mTitleProtection = false;
+ }
+
+ /**
+ * Is this page "semi-protected" - the *only* protection levels are listed
+ * in $wgSemiprotectedRestrictionLevels?
+ *
+ * @param string $action Action to check (default: edit)
+ * @return bool
+ */
+ public function isSemiProtected( $action = 'edit' ) {
+ global $wgSemiprotectedRestrictionLevels;
+
+ $restrictions = $this->getRestrictions( $action );
+ $semi = $wgSemiprotectedRestrictionLevels;
+ if ( !$restrictions || !$semi ) {
+ // Not protected, or all protection is full protection
+ return false;
+ }
+
+ // Remap autoconfirmed to editsemiprotected for BC
+ foreach ( array_keys( $semi, 'autoconfirmed' ) as $key ) {
+ $semi[$key] = 'editsemiprotected';
+ }
+ foreach ( array_keys( $restrictions, 'autoconfirmed' ) as $key ) {
+ $restrictions[$key] = 'editsemiprotected';
+ }
+
+ return !array_diff( $restrictions, $semi );
+ }
+
+ /**
+ * Does the title correspond to a protected article?
+ *
+ * @param string $action The action the page is protected from,
+ * by default checks all actions.
+ * @return bool
+ */
+ public function isProtected( $action = '' ) {
+ global $wgRestrictionLevels;
+
+ $restrictionTypes = $this->getRestrictionTypes();
+
+ # Special pages have inherent protection
+ if ( $this->isSpecialPage() ) {
+ return true;
+ }
+
+ # Check regular protection levels
+ foreach ( $restrictionTypes as $type ) {
+ if ( $action == $type || $action == '' ) {
+ $r = $this->getRestrictions( $type );
+ foreach ( $wgRestrictionLevels as $level ) {
+ if ( in_array( $level, $r ) && $level != '' ) {
+ return true;
+ }
+ }
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Determines if $user is unable to edit this page because it has been protected
+ * by $wgNamespaceProtection.
+ *
+ * @param User $user User object to check permissions
+ * @return bool
+ */
+ public function isNamespaceProtected( User $user ) {
+ global $wgNamespaceProtection;
+
+ if ( isset( $wgNamespaceProtection[$this->mNamespace] ) ) {
+ foreach ( (array)$wgNamespaceProtection[$this->mNamespace] as $right ) {
+ if ( $right != '' && !$user->isAllowed( $right ) ) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Cascading protection: Return true if cascading restrictions apply to this page, false if not.
+ *
+ * @return bool If the page is subject to cascading restrictions.
+ */
+ public function isCascadeProtected() {
+ list( $sources, /* $restrictions */ ) = $this->getCascadeProtectionSources( false );
+ return ( $sources > 0 );
+ }
+
+ /**
+ * Determines whether cascading protection sources have already been loaded from
+ * the database.
+ *
+ * @param bool $getPages True to check if the pages are loaded, or false to check
+ * if the status is loaded.
+ * @return bool Whether or not the specified information has been loaded
+ * @since 1.23
+ */
+ public function areCascadeProtectionSourcesLoaded( $getPages = true ) {
+ return $getPages ? $this->mCascadeSources !== null : $this->mHasCascadingRestrictions !== null;
+ }
+
+ /**
+ * Cascading protection: Get the source of any cascading restrictions on this page.
+ *
+ * @param bool $getPages Whether or not to retrieve the actual pages
+ * that the restrictions have come from and the actual restrictions
+ * themselves.
+ * @return array Two elements: First is an array of Title objects of the
+ * pages from which cascading restrictions have come, false for
+ * none, or true if such restrictions exist but $getPages was not
+ * set. Second is an array like that returned by
+ * Title::getAllRestrictions(), or an empty array if $getPages is
+ * false.
+ */
+ public function getCascadeProtectionSources( $getPages = true ) {
+ $pagerestrictions = [];
+
+ if ( $this->mCascadeSources !== null && $getPages ) {
+ return [ $this->mCascadeSources, $this->mCascadingRestrictions ];
+ } elseif ( $this->mHasCascadingRestrictions !== null && !$getPages ) {
+ return [ $this->mHasCascadingRestrictions, $pagerestrictions ];
+ }
+
+ $dbr = wfGetDB( DB_REPLICA );
+
+ if ( $this->getNamespace() == NS_FILE ) {
+ $tables = [ 'imagelinks', 'page_restrictions' ];
+ $where_clauses = [
+ 'il_to' => $this->getDBkey(),
+ 'il_from=pr_page',
+ 'pr_cascade' => 1
+ ];
+ } else {
+ $tables = [ 'templatelinks', 'page_restrictions' ];
+ $where_clauses = [
+ 'tl_namespace' => $this->getNamespace(),
+ 'tl_title' => $this->getDBkey(),
+ 'tl_from=pr_page',
+ 'pr_cascade' => 1
+ ];
+ }
+
+ if ( $getPages ) {
+ $cols = [ 'pr_page', 'page_namespace', 'page_title',
+ 'pr_expiry', 'pr_type', 'pr_level' ];
+ $where_clauses[] = 'page_id=pr_page';
+ $tables[] = 'page';
+ } else {
+ $cols = [ 'pr_expiry' ];
+ }
+
+ $res = $dbr->select( $tables, $cols, $where_clauses, __METHOD__ );
+
+ $sources = $getPages ? [] : false;
+ $now = wfTimestampNow();
+
+ foreach ( $res as $row ) {
+ $expiry = $dbr->decodeExpiry( $row->pr_expiry );
+ if ( $expiry > $now ) {
+ if ( $getPages ) {
+ $page_id = $row->pr_page;
+ $page_ns = $row->page_namespace;
+ $page_title = $row->page_title;
+ $sources[$page_id] = self::makeTitle( $page_ns, $page_title );
+ # Add groups needed for each restriction type if its not already there
+ # Make sure this restriction type still exists
+
+ if ( !isset( $pagerestrictions[$row->pr_type] ) ) {
+ $pagerestrictions[$row->pr_type] = [];
+ }
+
+ if (
+ isset( $pagerestrictions[$row->pr_type] )
+ && !in_array( $row->pr_level, $pagerestrictions[$row->pr_type] )
+ ) {
+ $pagerestrictions[$row->pr_type][] = $row->pr_level;
+ }
+ } else {
+ $sources = true;
+ }
+ }
+ }
+
+ if ( $getPages ) {
+ $this->mCascadeSources = $sources;
+ $this->mCascadingRestrictions = $pagerestrictions;
+ } else {
+ $this->mHasCascadingRestrictions = $sources;
+ }
+
+ return [ $sources, $pagerestrictions ];
+ }
+
+ /**
+ * Accessor for mRestrictionsLoaded
+ *
+ * @return bool Whether or not the page's restrictions have already been
+ * loaded from the database
+ * @since 1.23
+ */
+ public function areRestrictionsLoaded() {
+ return $this->mRestrictionsLoaded;
+ }
+
+ /**
+ * Accessor/initialisation for mRestrictions
+ *
+ * @param string $action Action that permission needs to be checked for
+ * @return array Restriction levels needed to take the action. All levels are
+ * required. Note that restriction levels are normally user rights, but 'sysop'
+ * and 'autoconfirmed' are also allowed for backwards compatibility. These should
+ * be mapped to 'editprotected' and 'editsemiprotected' respectively.
+ */
+ public function getRestrictions( $action ) {
+ if ( !$this->mRestrictionsLoaded ) {
+ $this->loadRestrictions();
+ }
+ return isset( $this->mRestrictions[$action] )
+ ? $this->mRestrictions[$action]
+ : [];
+ }
+
+ /**
+ * Accessor/initialisation for mRestrictions
+ *
+ * @return array Keys are actions, values are arrays as returned by
+ * Title::getRestrictions()
+ * @since 1.23
+ */
+ public function getAllRestrictions() {
+ if ( !$this->mRestrictionsLoaded ) {
+ $this->loadRestrictions();
+ }
+ return $this->mRestrictions;
+ }
+
+ /**
+ * Get the expiry time for the restriction against a given action
+ *
+ * @param string $action
+ * @return string|bool 14-char timestamp, or 'infinity' if the page is protected forever
+ * or not protected at all, or false if the action is not recognised.
+ */
+ public function getRestrictionExpiry( $action ) {
+ if ( !$this->mRestrictionsLoaded ) {
+ $this->loadRestrictions();
+ }
+ return isset( $this->mRestrictionsExpiry[$action] ) ? $this->mRestrictionsExpiry[$action] : false;
+ }
+
+ /**
+ * Returns cascading restrictions for the current article
+ *
+ * @return bool
+ */
+ function areRestrictionsCascading() {
+ if ( !$this->mRestrictionsLoaded ) {
+ $this->loadRestrictions();
+ }
+
+ return $this->mCascadeRestriction;
+ }
+
+ /**
+ * Compiles list of active page restrictions from both page table (pre 1.10)
+ * and page_restrictions table for this existing page.
+ * Public for usage by LiquidThreads.
+ *
+ * @param array $rows Array of db result objects
+ * @param string $oldFashionedRestrictions Comma-separated list of page
+ * restrictions from page table (pre 1.10)
+ */
+ public function loadRestrictionsFromRows( $rows, $oldFashionedRestrictions = null ) {
+ $dbr = wfGetDB( DB_REPLICA );
+
+ $restrictionTypes = $this->getRestrictionTypes();
+
+ foreach ( $restrictionTypes as $type ) {
+ $this->mRestrictions[$type] = [];
+ $this->mRestrictionsExpiry[$type] = 'infinity';
+ }
+
+ $this->mCascadeRestriction = false;
+
+ # Backwards-compatibility: also load the restrictions from the page record (old format).
+ if ( $oldFashionedRestrictions !== null ) {
+ $this->mOldRestrictions = $oldFashionedRestrictions;
+ }
+
+ if ( $this->mOldRestrictions === false ) {
+ $this->mOldRestrictions = $dbr->selectField( 'page', 'page_restrictions',
+ [ 'page_id' => $this->getArticleID() ], __METHOD__ );
+ }
+
+ if ( $this->mOldRestrictions != '' ) {
+ foreach ( explode( ':', trim( $this->mOldRestrictions ) ) as $restrict ) {
+ $temp = explode( '=', trim( $restrict ) );
+ if ( count( $temp ) == 1 ) {
+ // old old format should be treated as edit/move restriction
+ $this->mRestrictions['edit'] = explode( ',', trim( $temp[0] ) );
+ $this->mRestrictions['move'] = explode( ',', trim( $temp[0] ) );
+ } else {
+ $restriction = trim( $temp[1] );
+ if ( $restriction != '' ) { // some old entries are empty
+ $this->mRestrictions[$temp[0]] = explode( ',', $restriction );
+ }
+ }
+ }
+ }
+
+ if ( count( $rows ) ) {
+ # Current system - load second to make them override.
+ $now = wfTimestampNow();
+
+ # Cycle through all the restrictions.
+ foreach ( $rows as $row ) {
+ // Don't take care of restrictions types that aren't allowed
+ if ( !in_array( $row->pr_type, $restrictionTypes ) ) {
+ continue;
+ }
+
+ $expiry = $dbr->decodeExpiry( $row->pr_expiry );
+
+ // Only apply the restrictions if they haven't expired!
+ if ( !$expiry || $expiry > $now ) {
+ $this->mRestrictionsExpiry[$row->pr_type] = $expiry;
+ $this->mRestrictions[$row->pr_type] = explode( ',', trim( $row->pr_level ) );
+
+ $this->mCascadeRestriction |= $row->pr_cascade;
+ }
+ }
+ }
+
+ $this->mRestrictionsLoaded = true;
+ }
+
+ /**
+ * Load restrictions from the page_restrictions table
+ *
+ * @param string $oldFashionedRestrictions Comma-separated list of page
+ * restrictions from page table (pre 1.10)
+ */
+ public function loadRestrictions( $oldFashionedRestrictions = null ) {
+ if ( $this->mRestrictionsLoaded ) {
+ return;
+ }
+
+ $id = $this->getArticleID();
+ if ( $id ) {
+ $cache = ObjectCache::getMainWANInstance();
+ $rows = $cache->getWithSetCallback(
+ // Page protections always leave a new null revision
+ $cache->makeKey( 'page-restrictions', $id, $this->getLatestRevID() ),
+ $cache::TTL_DAY,
+ function ( $curValue, &$ttl, array &$setOpts ) {
+ $dbr = wfGetDB( DB_REPLICA );
+
+ $setOpts += Database::getCacheSetOptions( $dbr );
+
+ return iterator_to_array(
+ $dbr->select(
+ 'page_restrictions',
+ [ 'pr_type', 'pr_expiry', 'pr_level', 'pr_cascade' ],
+ [ 'pr_page' => $this->getArticleID() ],
+ __METHOD__
+ )
+ );
+ }
+ );
+
+ $this->loadRestrictionsFromRows( $rows, $oldFashionedRestrictions );
+ } else {
+ $title_protection = $this->getTitleProtectionInternal();
+
+ if ( $title_protection ) {
+ $now = wfTimestampNow();
+ $expiry = wfGetDB( DB_REPLICA )->decodeExpiry( $title_protection['expiry'] );
+
+ if ( !$expiry || $expiry > $now ) {
+ // Apply the restrictions
+ $this->mRestrictionsExpiry['create'] = $expiry;
+ $this->mRestrictions['create'] =
+ explode( ',', trim( $title_protection['permission'] ) );
+ } else { // Get rid of the old restrictions
+ $this->mTitleProtection = false;
+ }
+ } else {
+ $this->mRestrictionsExpiry['create'] = 'infinity';
+ }
+ $this->mRestrictionsLoaded = true;
+ }
+ }
+
+ /**
+ * Flush the protection cache in this object and force reload from the database.
+ * This is used when updating protection from WikiPage::doUpdateRestrictions().
+ */
+ public function flushRestrictions() {
+ $this->mRestrictionsLoaded = false;
+ $this->mTitleProtection = null;
+ }
+
+ /**
+ * Purge expired restrictions from the page_restrictions table
+ *
+ * This will purge no more than $wgUpdateRowsPerQuery page_restrictions rows
+ */
+ static function purgeExpiredRestrictions() {
+ if ( wfReadOnly() ) {
+ return;
+ }
+
+ DeferredUpdates::addUpdate( new AtomicSectionUpdate(
+ wfGetDB( DB_MASTER ),
+ __METHOD__,
+ function ( IDatabase $dbw, $fname ) {
+ $config = MediaWikiServices::getInstance()->getMainConfig();
+ $ids = $dbw->selectFieldValues(
+ 'page_restrictions',
+ 'pr_id',
+ [ 'pr_expiry < ' . $dbw->addQuotes( $dbw->timestamp() ) ],
+ $fname,
+ [ 'LIMIT' => $config->get( 'UpdateRowsPerQuery' ) ] // T135470
+ );
+ if ( $ids ) {
+ $dbw->delete( 'page_restrictions', [ 'pr_id' => $ids ], $fname );
+ }
+ }
+ ) );
+
+ DeferredUpdates::addUpdate( new AtomicSectionUpdate(
+ wfGetDB( DB_MASTER ),
+ __METHOD__,
+ function ( IDatabase $dbw, $fname ) {
+ $dbw->delete(
+ 'protected_titles',
+ [ 'pt_expiry < ' . $dbw->addQuotes( $dbw->timestamp() ) ],
+ $fname
+ );
+ }
+ ) );
+ }
+
+ /**
+ * Does this have subpages? (Warning, usually requires an extra DB query.)
+ *
+ * @return bool
+ */
+ public function hasSubpages() {
+ if ( !MWNamespace::hasSubpages( $this->mNamespace ) ) {
+ # Duh
+ return false;
+ }
+
+ # We dynamically add a member variable for the purpose of this method
+ # alone to cache the result. There's no point in having it hanging
+ # around uninitialized in every Title object; therefore we only add it
+ # if needed and don't declare it statically.
+ if ( $this->mHasSubpages === null ) {
+ $this->mHasSubpages = false;
+ $subpages = $this->getSubpages( 1 );
+ if ( $subpages instanceof TitleArray ) {
+ $this->mHasSubpages = (bool)$subpages->count();
+ }
+ }
+
+ return $this->mHasSubpages;
+ }
+
+ /**
+ * Get all subpages of this page.
+ *
+ * @param int $limit Maximum number of subpages to fetch; -1 for no limit
+ * @return TitleArray|array TitleArray, or empty array if this page's namespace
+ * doesn't allow subpages
+ */
+ public function getSubpages( $limit = -1 ) {
+ if ( !MWNamespace::hasSubpages( $this->getNamespace() ) ) {
+ return [];
+ }
+
+ $dbr = wfGetDB( DB_REPLICA );
+ $conds['page_namespace'] = $this->getNamespace();
+ $conds[] = 'page_title ' . $dbr->buildLike( $this->getDBkey() . '/', $dbr->anyString() );
+ $options = [];
+ if ( $limit > -1 ) {
+ $options['LIMIT'] = $limit;
+ }
+ return TitleArray::newFromResult(
+ $dbr->select( 'page',
+ [ 'page_id', 'page_namespace', 'page_title', 'page_is_redirect' ],
+ $conds,
+ __METHOD__,
+ $options
+ )
+ );
+ }
+
+ /**
+ * Is there a version of this page in the deletion archive?
+ *
+ * @return int The number of archived revisions
+ */
+ public function isDeleted() {
if ( $this->getNamespace() < 0 ) {
$n = 0;
} else {
- $dbr =& wfGetDB( DB_SLAVE );
- $n = $dbr->selectField( 'archive', 'COUNT(*)', array( 'ar_namespace' => $this->getNamespace(),
- 'ar_title' => $this->getDBkey() ), $fname );
+ $dbr = wfGetDB( DB_REPLICA );
+
+ $n = $dbr->selectField( 'archive', 'COUNT(*)',
+ [ 'ar_namespace' => $this->getNamespace(), 'ar_title' => $this->getDBkey() ],
+ __METHOD__
+ );
+ if ( $this->getNamespace() == NS_FILE ) {
+ $n += $dbr->selectField( 'filearchive', 'COUNT(*)',
+ [ 'fa_name' => $this->getDBkey() ],
+ __METHOD__
+ );
+ }
+ }
+ return (int)$n;
+ }
+
+ /**
+ * Is there a version of this page in the deletion archive?
+ *
+ * @return bool
+ */
+ public function isDeletedQuick() {
+ if ( $this->getNamespace() < 0 ) {
+ return false;
+ }
+ $dbr = wfGetDB( DB_REPLICA );
+ $deleted = (bool)$dbr->selectField( 'archive', '1',
+ [ 'ar_namespace' => $this->getNamespace(), 'ar_title' => $this->getDBkey() ],
+ __METHOD__
+ );
+ if ( !$deleted && $this->getNamespace() == NS_FILE ) {
+ $deleted = (bool)$dbr->selectField( 'filearchive', '1',
+ [ 'fa_name' => $this->getDBkey() ],
+ __METHOD__
+ );
+ }
+ return $deleted;
+ }
+
+ /**
+ * Get the article ID for this Title from the link cache,
+ * adding it if necessary
+ *
+ * @param int $flags A bit field; may be Title::GAID_FOR_UPDATE to select
+ * for update
+ * @return int The ID
+ */
+ public function getArticleID( $flags = 0 ) {
+ if ( $this->getNamespace() < 0 ) {
+ $this->mArticleID = 0;
+ return $this->mArticleID;
+ }
+ $linkCache = LinkCache::singleton();
+ if ( $flags & self::GAID_FOR_UPDATE ) {
+ $oldUpdate = $linkCache->forUpdate( true );
+ $linkCache->clearLink( $this );
+ $this->mArticleID = $linkCache->addLinkObj( $this );
+ $linkCache->forUpdate( $oldUpdate );
+ } else {
+ if ( -1 == $this->mArticleID ) {
+ $this->mArticleID = $linkCache->addLinkObj( $this );
+ }
+ }
+ return $this->mArticleID;
+ }
+
+ /**
+ * Is this an article that is a redirect page?
+ * Uses link cache, adding it if necessary
+ *
+ * @param int $flags A bit field; may be Title::GAID_FOR_UPDATE to select for update
+ * @return bool
+ */
+ public function isRedirect( $flags = 0 ) {
+ if ( !is_null( $this->mRedirect ) ) {
+ return $this->mRedirect;
+ }
+ if ( !$this->getArticleID( $flags ) ) {
+ $this->mRedirect = false;
+ return $this->mRedirect;
+ }
+
+ $linkCache = LinkCache::singleton();
+ $linkCache->addLinkObj( $this ); # in case we already had an article ID
+ $cached = $linkCache->getGoodLinkFieldObj( $this, 'redirect' );
+ if ( $cached === null ) {
+ # Trust LinkCache's state over our own
+ # LinkCache is telling us that the page doesn't exist, despite there being cached
+ # data relating to an existing page in $this->mArticleID. Updaters should clear
+ # LinkCache as appropriate, or use $flags = Title::GAID_FOR_UPDATE. If that flag is
+ # set, then LinkCache will definitely be up to date here, since getArticleID() forces
+ # LinkCache to refresh its data from the master.
+ $this->mRedirect = false;
+ return $this->mRedirect;
+ }
+
+ $this->mRedirect = (bool)$cached;
+
+ return $this->mRedirect;
+ }
+
+ /**
+ * What is the length of this page?
+ * Uses link cache, adding it if necessary
+ *
+ * @param int $flags A bit field; may be Title::GAID_FOR_UPDATE to select for update
+ * @return int
+ */
+ public function getLength( $flags = 0 ) {
+ if ( $this->mLength != -1 ) {
+ return $this->mLength;
+ }
+ if ( !$this->getArticleID( $flags ) ) {
+ $this->mLength = 0;
+ return $this->mLength;
+ }
+ $linkCache = LinkCache::singleton();
+ $linkCache->addLinkObj( $this ); # in case we already had an article ID
+ $cached = $linkCache->getGoodLinkFieldObj( $this, 'length' );
+ if ( $cached === null ) {
+ # Trust LinkCache's state over our own, as for isRedirect()
+ $this->mLength = 0;
+ return $this->mLength;
+ }
+
+ $this->mLength = intval( $cached );
+
+ return $this->mLength;
+ }
+
+ /**
+ * What is the page_latest field for this page?
+ *
+ * @param int $flags A bit field; may be Title::GAID_FOR_UPDATE to select for update
+ * @return int Int or 0 if the page doesn't exist
+ */
+ public function getLatestRevID( $flags = 0 ) {
+ if ( !( $flags & self::GAID_FOR_UPDATE ) && $this->mLatestID !== false ) {
+ return intval( $this->mLatestID );
+ }
+ if ( !$this->getArticleID( $flags ) ) {
+ $this->mLatestID = 0;
+ return $this->mLatestID;
+ }
+ $linkCache = LinkCache::singleton();
+ $linkCache->addLinkObj( $this ); # in case we already had an article ID
+ $cached = $linkCache->getGoodLinkFieldObj( $this, 'revision' );
+ if ( $cached === null ) {
+ # Trust LinkCache's state over our own, as for isRedirect()
+ $this->mLatestID = 0;
+ return $this->mLatestID;
+ }
+
+ $this->mLatestID = intval( $cached );
+
+ return $this->mLatestID;
+ }
+
+ /**
+ * This clears some fields in this object, and clears any associated
+ * keys in the "bad links" section of the link cache.
+ *
+ * - This is called from WikiPage::doEditContent() and WikiPage::insertOn() to allow
+ * loading of the new page_id. It's also called from
+ * WikiPage::doDeleteArticleReal()
+ *
+ * @param int $newid The new Article ID
+ */
+ public function resetArticleID( $newid ) {
+ $linkCache = LinkCache::singleton();
+ $linkCache->clearLink( $this );
+
+ if ( $newid === false ) {
+ $this->mArticleID = -1;
+ } else {
+ $this->mArticleID = intval( $newid );
}
- return (int)$n;
+ $this->mRestrictionsLoaded = false;
+ $this->mRestrictions = [];
+ $this->mOldRestrictions = false;
+ $this->mRedirect = null;
+ $this->mLength = -1;
+ $this->mLatestID = false;
+ $this->mContentModel = false;
+ $this->mEstimateRevisions = null;
+ $this->mPageLanguage = false;
+ $this->mDbPageLanguage = false;
+ $this->mIsBigDeletion = null;
+ }
+
+ public static function clearCaches() {
+ $linkCache = LinkCache::singleton();
+ $linkCache->clear();
+
+ $titleCache = self::getTitleCache();
+ $titleCache->clear();
}
/**
- * Get the article ID for this Title from the link cache,
- * adding it if necessary
- * @param int $flags a bit field; may be GAID_FOR_UPDATE to select
- * for update
- * @return int the ID
- * @access public
- */
- function getArticleID( $flags = 0 ) {
- global $wgLinkCache;
-
- if ( $flags & GAID_FOR_UPDATE ) {
- $oldUpdate = $wgLinkCache->forUpdate( true );
- $this->mArticleID = $wgLinkCache->addLinkObj( $this );
- $wgLinkCache->forUpdate( $oldUpdate );
+ * Capitalize a text string for a title if it belongs to a namespace that capitalizes
+ *
+ * @param string $text Containing title to capitalize
+ * @param int $ns Namespace index, defaults to NS_MAIN
+ * @return string Containing capitalized title
+ */
+ public static function capitalize( $text, $ns = NS_MAIN ) {
+ global $wgContLang;
+
+ if ( MWNamespace::isCapitalized( $ns ) ) {
+ return $wgContLang->ucfirst( $text );
} else {
- if ( -1 == $this->mArticleID ) {
- $this->mArticleID = $wgLinkCache->addLinkObj( $this );
- }
+ return $text;
}
- return $this->mArticleID;
}
- function getLatestRevID() {
- if ($this->mLatestID !== false)
- return $this->mLatestID;
+ /**
+ * Secure and split - main initialisation function for this object
+ *
+ * Assumes that mDbkeyform has been set, and is urldecoded
+ * and uses underscores, but not otherwise munged. This function
+ * removes illegal characters, splits off the interwiki and
+ * namespace prefixes, sets the other forms, and canonicalizes
+ * everything.
+ *
+ * @throws MalformedTitleException On invalid titles
+ * @return bool True on success
+ */
+ private function secureAndSplit() {
+ # Initialisation
+ $this->mInterwiki = '';
+ $this->mFragment = '';
+ $this->mNamespace = $this->mDefaultNamespace; # Usually NS_MAIN
+
+ $dbkey = $this->mDbkeyform;
+
+ // @note: splitTitleString() is a temporary hack to allow MediaWikiTitleCodec to share
+ // the parsing code with Title, while avoiding massive refactoring.
+ // @todo: get rid of secureAndSplit, refactor parsing code.
+ // @note: getTitleParser() returns a TitleParser implementation which does not have a
+ // splitTitleString method, but the only implementation (MediaWikiTitleCodec) does
+ $titleCodec = MediaWikiServices::getInstance()->getTitleParser();
+ // MalformedTitleException can be thrown here
+ $parts = $titleCodec->splitTitleString( $dbkey, $this->getDefaultNamespace() );
+
+ # Fill fields
+ $this->setFragment( '#' . $parts['fragment'] );
+ $this->mInterwiki = $parts['interwiki'];
+ $this->mLocalInterwiki = $parts['local_interwiki'];
+ $this->mNamespace = $parts['namespace'];
+ $this->mUserCaseDBKey = $parts['user_case_dbkey'];
+
+ $this->mDbkeyform = $parts['dbkey'];
+ $this->mUrlform = wfUrlencode( $this->mDbkeyform );
+ $this->mTextform = strtr( $this->mDbkeyform, '_', ' ' );
+
+ # We already know that some pages won't be in the database!
+ if ( $this->isExternal() || $this->isSpecialPage() ) {
+ $this->mArticleID = 0;
+ }
- $db =& wfGetDB(DB_SLAVE);
- return $this->mLatestID = $db->selectField( 'revision',
- "max(rev_id)",
- array('rev_page' => $this->getArticleID()),
- 'Title::getLatestRevID' );
+ return true;
}
/**
- * This clears some fields in this object, and clears any associated
- * keys in the "bad links" section of $wgLinkCache.
+ * Get an array of Title objects linking to this Title
+ * Also stores the IDs in the link cache.
*
- * - This is called from Article::insertNewArticle() to allow
- * loading of the new page_id. It's also called from
- * Article::doDeleteArticle()
+ * WARNING: do not use this function on arbitrary user-supplied titles!
+ * On heavily-used templates it will max out the memory.
*
- * @param int $newid the new Article ID
- * @access public
+ * @param array $options May be FOR UPDATE
+ * @param string $table Table name
+ * @param string $prefix Fields prefix
+ * @return Title[] Array of Title objects linking here
*/
- function resetArticleID( $newid ) {
- global $wgLinkCache;
- $wgLinkCache->clearBadLink( $this->getPrefixedDBkey() );
+ public function getLinksTo( $options = [], $table = 'pagelinks', $prefix = 'pl' ) {
+ if ( count( $options ) > 0 ) {
+ $db = wfGetDB( DB_MASTER );
+ } else {
+ $db = wfGetDB( DB_REPLICA );
+ }
- if ( 0 == $newid ) { $this->mArticleID = -1; }
- else { $this->mArticleID = $newid; }
- $this->mRestrictionsLoaded = false;
- $this->mRestrictions = array();
+ $res = $db->select(
+ [ 'page', $table ],
+ self::getSelectFields(),
+ [
+ "{$prefix}_from=page_id",
+ "{$prefix}_namespace" => $this->getNamespace(),
+ "{$prefix}_title" => $this->getDBkey() ],
+ __METHOD__,
+ $options
+ );
+
+ $retVal = [];
+ if ( $res->numRows() ) {
+ $linkCache = LinkCache::singleton();
+ foreach ( $res as $row ) {
+ $titleObj = self::makeTitle( $row->page_namespace, $row->page_title );
+ if ( $titleObj ) {
+ $linkCache->addGoodLinkObjFromRow( $titleObj, $row );
+ $retVal[] = $titleObj;
+ }
+ }
+ }
+ return $retVal;
}
/**
- * Updates page_touched for this page; called from LinksUpdate.php
- * @return bool true if the update succeded
- * @access public
+ * Get an array of Title objects using this Title as a template
+ * Also stores the IDs in the link cache.
+ *
+ * WARNING: do not use this function on arbitrary user-supplied titles!
+ * On heavily-used templates it will max out the memory.
+ *
+ * @param array $options Query option to Database::select()
+ * @return Title[] Array of Title the Title objects linking here
*/
- function invalidateCache() {
- global $wgUseFileCache;
+ public function getTemplateLinksTo( $options = [] ) {
+ return $this->getLinksTo( $options, 'templatelinks', 'tl' );
+ }
- if ( wfReadOnly() ) {
- return;
+ /**
+ * Get an array of Title objects linked from this Title
+ * Also stores the IDs in the link cache.
+ *
+ * WARNING: do not use this function on arbitrary user-supplied titles!
+ * On heavily-used templates it will max out the memory.
+ *
+ * @param array $options Query option to Database::select()
+ * @param string $table Table name
+ * @param string $prefix Fields prefix
+ * @return array Array of Title objects linking here
+ */
+ public function getLinksFrom( $options = [], $table = 'pagelinks', $prefix = 'pl' ) {
+ $id = $this->getArticleID();
+
+ # If the page doesn't exist; there can't be any link from this page
+ if ( !$id ) {
+ return [];
}
- $now = wfTimestampNow();
- $dbw =& wfGetDB( DB_MASTER );
- $success = $dbw->update( 'page',
- array( /* SET */
- 'page_touched' => $dbw->timestamp()
- ), array( /* WHERE */
- 'page_namespace' => $this->getNamespace() ,
- 'page_title' => $this->getDBkey()
- ), 'Title::invalidateCache'
+ $db = wfGetDB( DB_REPLICA );
+
+ $blNamespace = "{$prefix}_namespace";
+ $blTitle = "{$prefix}_title";
+
+ $res = $db->select(
+ [ $table, 'page' ],
+ array_merge(
+ [ $blNamespace, $blTitle ],
+ WikiPage::selectFields()
+ ),
+ [ "{$prefix}_from" => $id ],
+ __METHOD__,
+ $options,
+ [ 'page' => [
+ 'LEFT JOIN',
+ [ "page_namespace=$blNamespace", "page_title=$blTitle" ]
+ ] ]
);
- if ($wgUseFileCache) {
- $cache = new CacheManager($this);
- @unlink($cache->fileCacheName());
+ $retVal = [];
+ $linkCache = LinkCache::singleton();
+ foreach ( $res as $row ) {
+ if ( $row->page_id ) {
+ $titleObj = self::newFromRow( $row );
+ } else {
+ $titleObj = self::makeTitle( $row->$blNamespace, $row->$blTitle );
+ $linkCache->addBadLinkObj( $titleObj );
+ }
+ $retVal[] = $titleObj;
}
- return $success;
+ return $retVal;
}
/**
- * Prefix some arbitrary text with the namespace or interwiki prefix
- * of this object
+ * Get an array of Title objects used on this Title as a template
+ * Also stores the IDs in the link cache.
+ *
+ * WARNING: do not use this function on arbitrary user-supplied titles!
+ * On heavily-used templates it will max out the memory.
*
- * @param string $name the text
- * @return string the prefixed text
- * @access private
+ * @param array $options May be FOR UPDATE
+ * @return Title[] Array of Title the Title objects used here
*/
- /* private */ function prefix( $name ) {
- global $wgContLang;
+ public function getTemplateLinksFrom( $options = [] ) {
+ return $this->getLinksFrom( $options, 'templatelinks', 'tl' );
+ }
- $p = '';
- if ( '' != $this->mInterwiki ) {
- $p = $this->mInterwiki . ':';
+ /**
+ * Get an array of Title objects referring to non-existent articles linked
+ * from this page.
+ *
+ * @todo check if needed (used only in SpecialBrokenRedirects.php, and
+ * should use redirect table in this case).
+ * @return Title[] Array of Title the Title objects
+ */
+ public function getBrokenLinksFrom() {
+ if ( $this->getArticleID() == 0 ) {
+ # All links from article ID 0 are false positives
+ return [];
}
- if ( 0 != $this->mNamespace ) {
- $p .= $wgContLang->getNsText( $this->mNamespace ) . ':';
+
+ $dbr = wfGetDB( DB_REPLICA );
+ $res = $dbr->select(
+ [ 'page', 'pagelinks' ],
+ [ 'pl_namespace', 'pl_title' ],
+ [
+ 'pl_from' => $this->getArticleID(),
+ 'page_namespace IS NULL'
+ ],
+ __METHOD__, [],
+ [
+ 'page' => [
+ 'LEFT JOIN',
+ [ 'pl_namespace=page_namespace', 'pl_title=page_title' ]
+ ]
+ ]
+ );
+
+ $retVal = [];
+ foreach ( $res as $row ) {
+ $retVal[] = self::makeTitle( $row->pl_namespace, $row->pl_title );
}
- return $p . $name;
+ return $retVal;
}
/**
- * Secure and split - main initialisation function for this object
+ * Get a list of URLs to purge from the CDN cache when this
+ * page changes
*
- * Assumes that mDbkeyform has been set, and is urldecoded
- * and uses underscores, but not otherwise munged. This function
- * removes illegal characters, splits off the interwiki and
- * namespace prefixes, sets the other forms, and canonicalizes
- * everything.
- * @return bool true on success
- * @access private
+ * @return string[] Array of String the URLs
*/
- /* private */ function secureAndSplit() {
- global $wgContLang, $wgLocalInterwiki, $wgCapitalLinks;
- $fname = 'Title::secureAndSplit';
- wfProfileIn( $fname );
+ public function getCdnUrls() {
+ $urls = [
+ $this->getInternalURL(),
+ $this->getInternalURL( 'action=history' )
+ ];
- # Initialisation
- static $rxTc = false;
- if( !$rxTc ) {
- # % is needed as well
- $rxTc = '/[^' . Title::legalChars() . ']|%[0-9A-Fa-f]{2}/S';
+ $pageLang = $this->getPageLanguage();
+ if ( $pageLang->hasVariants() ) {
+ $variants = $pageLang->getVariants();
+ foreach ( $variants as $vCode ) {
+ $urls[] = $this->getInternalURL( $vCode );
+ }
}
- $this->mInterwiki = $this->mFragment = '';
- $this->mNamespace = $this->mDefaultNamespace; # Usually NS_MAIN
+ // If we are looking at a css/js user subpage, purge the action=raw.
+ if ( $this->isJsSubpage() ) {
+ $urls[] = $this->getInternalURL( 'action=raw&ctype=text/javascript' );
+ } elseif ( $this->isCssSubpage() ) {
+ $urls[] = $this->getInternalURL( 'action=raw&ctype=text/css' );
+ }
- # Clean up whitespace
- #
- $t = preg_replace( '/[ _]+/', '_', $this->mDbkeyform );
- $t = trim( $t, '_' );
+ Hooks::run( 'TitleSquidURLs', [ $this, &$urls ] );
+ return $urls;
+ }
- if ( '' == $t ) {
- wfProfileOut( $fname );
- return false;
+ /**
+ * @deprecated since 1.27 use getCdnUrls()
+ */
+ public function getSquidURLs() {
+ return $this->getCdnUrls();
+ }
+
+ /**
+ * Purge all applicable CDN URLs
+ */
+ public function purgeSquid() {
+ DeferredUpdates::addUpdate(
+ new CdnCacheUpdate( $this->getCdnUrls() ),
+ DeferredUpdates::PRESEND
+ );
+ }
+
+ /**
+ * Check whether a given move operation would be valid.
+ * Returns true if ok, or a getUserPermissionsErrors()-like array otherwise
+ *
+ * @deprecated since 1.25, use MovePage's methods instead
+ * @param Title &$nt The new title
+ * @param bool $auth Whether to check user permissions (uses $wgUser)
+ * @param string $reason Is the log summary of the move, used for spam checking
+ * @return array|bool True on success, getUserPermissionsErrors()-like array on failure
+ */
+ public function isValidMoveOperation( &$nt, $auth = true, $reason = '' ) {
+ global $wgUser;
+
+ if ( !( $nt instanceof Title ) ) {
+ // Normally we'd add this to $errors, but we'll get
+ // lots of syntax errors if $nt is not an object
+ return [ [ 'badtitletext' ] ];
}
- if( false !== strpos( $t, UTF8_REPLACEMENT ) ) {
- # Contained illegal UTF-8 sequences or forbidden Unicode chars.
- wfProfileOut( $fname );
- return false;
+ $mp = new MovePage( $this, $nt );
+ $errors = $mp->isValidMove()->getErrorsArray();
+ if ( $auth ) {
+ $errors = wfMergeErrorArrays(
+ $errors,
+ $mp->checkPermissions( $wgUser, $reason )->getErrorsArray()
+ );
}
- $this->mDbkeyform = $t;
-
- # Initial colon indicates main namespace rather than specified default
- # but should not create invalid {ns,title} pairs such as {0,Project:Foo}
- if ( ':' == $t{0} ) {
- $this->mNamespace = NS_MAIN;
- $t = substr( $t, 1 ); # remove the colon but continue processing
- }
-
- # Namespace or interwiki prefix
- $firstPass = true;
- do {
- if ( preg_match( "/^(.+?)_*:_*(.*)$/S", $t, $m ) ) {
- $p = $m[1];
- $lowerNs = strtolower( $p );
- if ( $ns = Namespace::getCanonicalIndex( $lowerNs ) ) {
- # Canonical namespace
- $t = $m[2];
- $this->mNamespace = $ns;
- } elseif ( $ns = $wgContLang->getNsIndex( $lowerNs )) {
- # Ordinary namespace
- $t = $m[2];
- $this->mNamespace = $ns;
- } elseif( $this->getInterwikiLink( $p ) ) {
- if( !$firstPass ) {
- # Can't make a local interwiki link to an interwiki link.
- # That's just crazy!
- wfProfileOut( $fname );
- return false;
- }
+ return $errors ?: true;
+ }
- # Interwiki link
- $t = $m[2];
- $this->mInterwiki = $p;
+ /**
+ * Check if the requested move target is a valid file move target
+ * @todo move this to MovePage
+ * @param Title $nt Target title
+ * @return array List of errors
+ */
+ protected function validateFileMoveOperation( $nt ) {
+ global $wgUser;
- # Redundant interwiki prefix to the local wiki
- if ( 0 == strcasecmp( $this->mInterwiki, $wgLocalInterwiki ) ) {
- if( $t == '' ) {
- # Can't have an empty self-link
- wfProfileOut( $fname );
- return false;
- }
- $this->mInterwiki = '';
- $firstPass = false;
- # Do another namespace split...
- continue;
- }
- }
- # If there's no recognized interwiki or namespace,
- # then let the colon expression be part of the title.
+ $errors = [];
+
+ $destFile = wfLocalFile( $nt );
+ $destFile->load( File::READ_LATEST );
+ if ( !$wgUser->isAllowed( 'reupload-shared' )
+ && !$destFile->exists() && wfFindFile( $nt )
+ ) {
+ $errors[] = [ 'file-exists-sharedrepo' ];
+ }
+
+ return $errors;
+ }
+
+ /**
+ * Move a title to a new location
+ *
+ * @deprecated since 1.25, use the MovePage class instead
+ * @param Title &$nt The new title
+ * @param bool $auth Indicates whether $wgUser's permissions
+ * should be checked
+ * @param string $reason The reason for the move
+ * @param bool $createRedirect Whether to create a redirect from the old title to the new title.
+ * Ignored if the user doesn't have the suppressredirect right.
+ * @param array $changeTags Applied to the entry in the move log and redirect page revision
+ * @return array|bool True on success, getUserPermissionsErrors()-like array on failure
+ */
+ public function moveTo( &$nt, $auth = true, $reason = '', $createRedirect = true,
+ array $changeTags = []
+ ) {
+ global $wgUser;
+ $err = $this->isValidMoveOperation( $nt, $auth, $reason );
+ if ( is_array( $err ) ) {
+ // Auto-block user's IP if the account was "hard" blocked
+ $wgUser->spreadAnyEditBlock();
+ return $err;
+ }
+ // Check suppressredirect permission
+ if ( $auth && !$wgUser->isAllowed( 'suppressredirect' ) ) {
+ $createRedirect = true;
+ }
+
+ $mp = new MovePage( $this, $nt );
+ $status = $mp->move( $wgUser, $reason, $createRedirect, $changeTags );
+ if ( $status->isOK() ) {
+ return true;
+ } else {
+ return $status->getErrorsArray();
+ }
+ }
+
+ /**
+ * Move this page's subpages to be subpages of $nt
+ *
+ * @param Title $nt Move target
+ * @param bool $auth Whether $wgUser's permissions should be checked
+ * @param string $reason The reason for the move
+ * @param bool $createRedirect Whether to create redirects from the old subpages to
+ * the new ones Ignored if the user doesn't have the 'suppressredirect' right
+ * @param array $changeTags Applied to the entry in the move log and redirect page revision
+ * @return array Array with old page titles as keys, and strings (new page titles) or
+ * getUserPermissionsErrors()-like arrays (errors) as values, or a
+ * getUserPermissionsErrors()-like error array with numeric indices if
+ * no pages were moved
+ */
+ public function moveSubpages( $nt, $auth = true, $reason = '', $createRedirect = true,
+ array $changeTags = []
+ ) {
+ global $wgMaximumMovedPages;
+ // Check permissions
+ if ( !$this->userCan( 'move-subpages' ) ) {
+ return [
+ [ 'cant-move-subpages' ],
+ ];
+ }
+ // Do the source and target namespaces support subpages?
+ if ( !MWNamespace::hasSubpages( $this->getNamespace() ) ) {
+ return [
+ [ 'namespace-nosubpages', MWNamespace::getCanonicalName( $this->getNamespace() ) ],
+ ];
+ }
+ if ( !MWNamespace::hasSubpages( $nt->getNamespace() ) ) {
+ return [
+ [ 'namespace-nosubpages', MWNamespace::getCanonicalName( $nt->getNamespace() ) ],
+ ];
+ }
+
+ $subpages = $this->getSubpages( $wgMaximumMovedPages + 1 );
+ $retval = [];
+ $count = 0;
+ foreach ( $subpages as $oldSubpage ) {
+ $count++;
+ if ( $count > $wgMaximumMovedPages ) {
+ $retval[$oldSubpage->getPrefixedText()] = [
+ [ 'movepage-max-pages', $wgMaximumMovedPages ],
+ ];
+ break;
}
- break;
- } while( true );
- $r = $t;
- # We already know that some pages won't be in the database!
- #
- if ( '' != $this->mInterwiki || -1 == $this->mNamespace ) {
- $this->mArticleID = 0;
+ // We don't know whether this function was called before
+ // or after moving the root page, so check both
+ // $this and $nt
+ if ( $oldSubpage->getArticleID() == $this->getArticleID()
+ || $oldSubpage->getArticleID() == $nt->getArticleID()
+ ) {
+ // When moving a page to a subpage of itself,
+ // don't move it twice
+ continue;
+ }
+ $newPageName = preg_replace(
+ '#^' . preg_quote( $this->getDBkey(), '#' ) . '#',
+ StringUtils::escapeRegexReplacement( $nt->getDBkey() ), # T23234
+ $oldSubpage->getDBkey() );
+ if ( $oldSubpage->isTalkPage() ) {
+ $newNs = $nt->getTalkPage()->getNamespace();
+ } else {
+ $newNs = $nt->getSubjectPage()->getNamespace();
+ }
+ # T16385: we need makeTitleSafe because the new page names may
+ # be longer than 255 characters.
+ $newSubpage = self::makeTitleSafe( $newNs, $newPageName );
+
+ $success = $oldSubpage->moveTo( $newSubpage, $auth, $reason, $createRedirect, $changeTags );
+ if ( $success === true ) {
+ $retval[$oldSubpage->getPrefixedText()] = $newSubpage->getPrefixedText();
+ } else {
+ $retval[$oldSubpage->getPrefixedText()] = $success;
+ }
}
- $f = strstr( $r, '#' );
- if ( false !== $f ) {
- $this->mFragment = substr( $f, 1 );
- $r = substr( $r, 0, strlen( $r ) - strlen( $f ) );
- # remove whitespace again: prevents "Foo_bar_#"
- # becoming "Foo_bar_"
- $r = preg_replace( '/_*$/', '', $r );
+ return $retval;
+ }
+
+ /**
+ * Checks if this page is just a one-rev redirect.
+ * Adds lock, so don't use just for light purposes.
+ *
+ * @return bool
+ */
+ public function isSingleRevRedirect() {
+ global $wgContentHandlerUseDB;
+
+ $dbw = wfGetDB( DB_MASTER );
+
+ # Is it a redirect?
+ $fields = [ 'page_is_redirect', 'page_latest', 'page_id' ];
+ if ( $wgContentHandlerUseDB ) {
+ $fields[] = 'page_content_model';
}
- # Reject illegal characters.
- #
- if( preg_match( $rxTc, $r ) ) {
- wfProfileOut( $fname );
+ $row = $dbw->selectRow( 'page',
+ $fields,
+ $this->pageCond(),
+ __METHOD__,
+ [ 'FOR UPDATE' ]
+ );
+ # Cache some fields we may want
+ $this->mArticleID = $row ? intval( $row->page_id ) : 0;
+ $this->mRedirect = $row ? (bool)$row->page_is_redirect : false;
+ $this->mLatestID = $row ? intval( $row->page_latest ) : false;
+ $this->mContentModel = $row && isset( $row->page_content_model )
+ ? strval( $row->page_content_model )
+ : false;
+
+ if ( !$this->mRedirect ) {
return false;
}
+ # Does the article have a history?
+ $row = $dbw->selectField( [ 'page', 'revision' ],
+ 'rev_id',
+ [ 'page_namespace' => $this->getNamespace(),
+ 'page_title' => $this->getDBkey(),
+ 'page_id=rev_page',
+ 'page_latest != rev_id'
+ ],
+ __METHOD__,
+ [ 'FOR UPDATE' ]
+ );
+ # Return true if there was no history
+ return ( $row === false );
+ }
- /**
- * Pages with "/./" or "/../" appearing in the URLs will
- * often be unreachable due to the way web browsers deal
- * with 'relative' URLs. Forbid them explicitly.
- */
- if ( strpos( $r, '.' ) !== false &&
- ( $r === '.' || $r === '..' ||
- strpos( $r, './' ) === 0 ||
- strpos( $r, '../' ) === 0 ||
- strpos( $r, '/./' ) !== false ||
- strpos( $r, '/../' ) !== false ) )
- {
- wfProfileOut( $fname );
+ /**
+ * Checks if $this can be moved to a given Title
+ * - Selects for update, so don't call it unless you mean business
+ *
+ * @deprecated since 1.25, use MovePage's methods instead
+ * @param Title $nt The new title to check
+ * @return bool
+ */
+ public function isValidMoveTarget( $nt ) {
+ # Is it an existing file?
+ if ( $nt->getNamespace() == NS_FILE ) {
+ $file = wfLocalFile( $nt );
+ $file->load( File::READ_LATEST );
+ if ( $file->exists() ) {
+ wfDebug( __METHOD__ . ": file exists\n" );
+ return false;
+ }
+ }
+ # Is it a redirect with no history?
+ if ( !$nt->isSingleRevRedirect() ) {
+ wfDebug( __METHOD__ . ": not a one-rev redirect\n" );
+ return false;
+ }
+ # Get the article text
+ $rev = Revision::newFromTitle( $nt, false, Revision::READ_LATEST );
+ if ( !is_object( $rev ) ) {
return false;
}
+ $content = $rev->getContent();
+ # Does the redirect point to the source?
+ # Or is it a broken self-redirect, usually caused by namespace collisions?
+ $redirTitle = $content ? $content->getRedirectTarget() : null;
- # We shouldn't need to query the DB for the size.
- #$maxSize = $dbr->textFieldSize( 'page', 'page_title' );
- if ( strlen( $r ) > 255 ) {
- wfProfileOut( $fname );
+ if ( $redirTitle ) {
+ if ( $redirTitle->getPrefixedDBkey() != $this->getPrefixedDBkey() &&
+ $redirTitle->getPrefixedDBkey() != $nt->getPrefixedDBkey() ) {
+ wfDebug( __METHOD__ . ": redirect points to other page\n" );
+ return false;
+ } else {
+ return true;
+ }
+ } else {
+ # Fail safe (not a redirect after all. strange.)
+ wfDebug( __METHOD__ . ": failsafe: database sais " . $nt->getPrefixedDBkey() .
+ " is a redirect, but it doesn't contain a valid redirect.\n" );
return false;
}
+ }
- /**
- * Normally, all wiki links are forced to have
- * an initial capital letter so [[foo]] and [[Foo]]
- * point to the same place.
- *
- * Don't force it for interwikis, since the other
- * site might be case-sensitive.
- */
- if( $wgCapitalLinks && $this->mInterwiki == '') {
- $t = $wgContLang->ucfirst( $r );
+ /**
+ * Get categories to which this Title belongs and return an array of
+ * categories' names.
+ *
+ * @return array Array of parents in the form:
+ * $parent => $currentarticle
+ */
+ public function getParentCategories() {
+ global $wgContLang;
+
+ $data = [];
+
+ $titleKey = $this->getArticleID();
+
+ if ( $titleKey === 0 ) {
+ return $data;
+ }
+
+ $dbr = wfGetDB( DB_REPLICA );
+
+ $res = $dbr->select(
+ 'categorylinks',
+ 'cl_to',
+ [ 'cl_from' => $titleKey ],
+ __METHOD__
+ );
+
+ if ( $res->numRows() > 0 ) {
+ foreach ( $res as $row ) {
+ // $data[] = Title::newFromText($wgContLang->getNsText ( NS_CATEGORY ).':'.$row->cl_to);
+ $data[$wgContLang->getNsText( NS_CATEGORY ) . ':' . $row->cl_to] = $this->getFullText();
+ }
+ }
+ return $data;
+ }
+
+ /**
+ * Get a tree of parent categories
+ *
+ * @param array $children Array with the children in the keys, to check for circular refs
+ * @return array Tree of parent categories
+ */
+ public function getParentCategoryTree( $children = [] ) {
+ $stack = [];
+ $parents = $this->getParentCategories();
+
+ if ( $parents ) {
+ foreach ( $parents as $parent => $current ) {
+ if ( array_key_exists( $parent, $children ) ) {
+ # Circular reference
+ $stack[$parent] = [];
+ } else {
+ $nt = self::newFromText( $parent );
+ if ( $nt ) {
+ $stack[$parent] = $nt->getParentCategoryTree( $children + [ $parent => 1 ] );
+ }
+ }
+ }
+ }
+
+ return $stack;
+ }
+
+ /**
+ * Get an associative array for selecting this title from
+ * the "page" table
+ *
+ * @return array Array suitable for the $where parameter of DB::select()
+ */
+ public function pageCond() {
+ if ( $this->mArticleID > 0 ) {
+ // PK avoids secondary lookups in InnoDB, shouldn't hurt other DBs
+ return [ 'page_id' => $this->mArticleID ];
} else {
- $t = $r;
+ return [ 'page_namespace' => $this->mNamespace, 'page_title' => $this->mDbkeyform ];
}
+ }
- /**
- * Can't make a link to a namespace alone...
- * "empty" local links can only be self-links
- * with a fragment identifier.
- */
- if( $t == '' &&
- $this->mInterwiki == '' &&
- $this->mNamespace != NS_MAIN ) {
- wfProfileOut( $fname );
+ /**
+ * Get next/previous revision ID relative to another revision ID
+ * @param int $revId Revision ID. Get the revision that was before this one.
+ * @param int $flags Title::GAID_FOR_UPDATE
+ * @param string $dir 'next' or 'prev'
+ * @return int|bool New revision ID, or false if none exists
+ */
+ private function getRelativeRevisionID( $revId, $flags, $dir ) {
+ $revId = (int)$revId;
+ if ( $dir === 'next' ) {
+ $op = '>';
+ $sort = 'ASC';
+ } elseif ( $dir === 'prev' ) {
+ $op = '<';
+ $sort = 'DESC';
+ } else {
+ throw new InvalidArgumentException( '$dir must be "next" or "prev"' );
+ }
+
+ if ( $flags & self::GAID_FOR_UPDATE ) {
+ $db = wfGetDB( DB_MASTER );
+ } else {
+ $db = wfGetDB( DB_REPLICA, 'contributions' );
+ }
+
+ // Intentionally not caring if the specified revision belongs to this
+ // page. We only care about the timestamp.
+ $ts = $db->selectField( 'revision', 'rev_timestamp', [ 'rev_id' => $revId ], __METHOD__ );
+ if ( $ts === false ) {
+ $ts = $db->selectField( 'archive', 'ar_timestamp', [ 'ar_rev_id' => $revId ], __METHOD__ );
+ if ( $ts === false ) {
+ // Or should this throw an InvalidArgumentException or something?
+ return false;
+ }
+ }
+ $ts = $db->addQuotes( $ts );
+
+ $revId = $db->selectField( 'revision', 'rev_id',
+ [
+ 'rev_page' => $this->getArticleID( $flags ),
+ "rev_timestamp $op $ts OR (rev_timestamp = $ts AND rev_id $op $revId)"
+ ],
+ __METHOD__,
+ [
+ 'ORDER BY' => "rev_timestamp $sort, rev_id $sort",
+ 'IGNORE INDEX' => 'rev_timestamp', // Probably needed for T159319
+ ]
+ );
+
+ if ( $revId === false ) {
return false;
+ } else {
+ return intval( $revId );
}
-
- # Fill fields
- $this->mDbkeyform = $t;
- $this->mUrlform = wfUrlencode( $t );
-
- $this->mTextform = str_replace( '_', ' ', $t );
-
- wfProfileOut( $fname );
- return true;
}
/**
- * Get a Title object associated with the talk page of this article
- * @return Title the object for the talk page
- * @access public
+ * Get the revision ID of the previous revision
+ *
+ * @param int $revId Revision ID. Get the revision that was before this one.
+ * @param int $flags Title::GAID_FOR_UPDATE
+ * @return int|bool Old revision ID, or false if none exists
*/
- function getTalkPage() {
- return Title::makeTitle( Namespace::getTalk( $this->getNamespace() ), $this->getDBkey() );
+ public function getPreviousRevisionID( $revId, $flags = 0 ) {
+ return $this->getRelativeRevisionID( $revId, $flags, 'prev' );
}
/**
- * Get a title object associated with the subject page of this
- * talk page
+ * Get the revision ID of the next revision
*
- * @return Title the object for the subject page
- * @access public
+ * @param int $revId Revision ID. Get the revision that was after this one.
+ * @param int $flags Title::GAID_FOR_UPDATE
+ * @return int|bool Next revision ID, or false if none exists
*/
- function getSubjectPage() {
- return Title::makeTitle( Namespace::getSubject( $this->getNamespace() ), $this->getDBkey() );
+ public function getNextRevisionID( $revId, $flags = 0 ) {
+ return $this->getRelativeRevisionID( $revId, $flags, 'next' );
}
/**
- * Get an array of Title objects linking to this Title
- * Also stores the IDs in the link cache.
+ * Get the first revision of the page
*
- * @param string $options may be FOR UPDATE
- * @return array the Title objects linking here
- * @access public
+ * @param int $flags Title::GAID_FOR_UPDATE
+ * @return Revision|null If page doesn't exist
*/
- function getLinksTo( $options = '' ) {
- global $wgLinkCache;
- $id = $this->getArticleID();
-
- if ( $options ) {
- $db =& wfGetDB( DB_MASTER );
- } else {
- $db =& wfGetDB( DB_SLAVE );
- }
-
- $res = $db->select( array( 'page', 'pagelinks' ),
- array( 'page_namespace', 'page_title', 'page_id' ),
- array(
- 'pl_from=page_id',
- 'pl_namespace' => $this->getNamespace(),
- 'pl_title' => $this->getDbKey() ),
- 'Title::getLinksTo',
- $options );
-
- $retVal = array();
- if ( $db->numRows( $res ) ) {
- while ( $row = $db->fetchObject( $res ) ) {
- if ( $titleObj = Title::makeTitle( $row->page_namespace, $row->page_title ) ) {
- $wgLinkCache->addGoodLinkObj( $row->page_id, $titleObj );
- $retVal[] = $titleObj;
- }
+ public function getFirstRevision( $flags = 0 ) {
+ $pageId = $this->getArticleID( $flags );
+ if ( $pageId ) {
+ $db = ( $flags & self::GAID_FOR_UPDATE ) ? wfGetDB( DB_MASTER ) : wfGetDB( DB_REPLICA );
+ $row = $db->selectRow( 'revision', Revision::selectFields(),
+ [ 'rev_page' => $pageId ],
+ __METHOD__,
+ [
+ 'ORDER BY' => 'rev_timestamp ASC, rev_id ASC',
+ 'IGNORE INDEX' => 'rev_timestamp', // See T159319
+ ]
+ );
+ if ( $row ) {
+ return new Revision( $row );
}
}
- $db->freeResult( $res );
- return $retVal;
+ return null;
}
/**
- * Get an array of Title objects referring to non-existent articles linked from this page
+ * Get the oldest revision timestamp of this page
*
- * @param string $options may be FOR UPDATE
- * @return array the Title objects
- * @access public
+ * @param int $flags Title::GAID_FOR_UPDATE
+ * @return string MW timestamp
*/
- function getBrokenLinksFrom( $options = '' ) {
- global $wgLinkCache;
-
- if ( $options ) {
- $db =& wfGetDB( DB_MASTER );
- } else {
- $db =& wfGetDB( DB_SLAVE );
- }
-
- $res = $db->safeQuery(
- "SELECT pl_namespace, pl_title
- FROM !
- LEFT JOIN !
- ON pl_namespace=page_namespace
- AND pl_title=page_title
- WHERE pl_from=?
- AND page_namespace IS NULL
- !",
- $db->tableName( 'pagelinks' ),
- $db->tableName( 'page' ),
- $this->getArticleId(),
- $options );
-
- $retVal = array();
- if ( $db->numRows( $res ) ) {
- while ( $row = $db->fetchObject( $res ) ) {
- $retVal[] = Title::makeTitle( $row->pl_namespace, $row->pl_title );
- }
- }
- $db->freeResult( $res );
- return $retVal;
+ public function getEarliestRevTime( $flags = 0 ) {
+ $rev = $this->getFirstRevision( $flags );
+ return $rev ? $rev->getTimestamp() : null;
}
-
/**
- * Get a list of URLs to purge from the Squid cache when this
- * page changes
+ * Check if this is a new page
*
- * @return array the URLs
- * @access public
+ * @return bool
*/
- function getSquidURLs() {
- return array(
- $this->getInternalURL(),
- $this->getInternalURL( 'action=history' )
- );
+ public function isNewPage() {
+ $dbr = wfGetDB( DB_REPLICA );
+ return (bool)$dbr->selectField( 'page', 'page_is_new', $this->pageCond(), __METHOD__ );
}
/**
- * Move this page without authentication
- * @param Title &$nt the new page Title
- * @access public
+ * Check whether the number of revisions of this page surpasses $wgDeleteRevisionsLimit
+ *
+ * @return bool
*/
- function moveNoAuth( &$nt ) {
- return $this->moveTo( $nt, false );
- }
+ public function isBigDeletion() {
+ global $wgDeleteRevisionsLimit;
- /**
- * Check whether a given move operation would be valid.
- * Returns true if ok, or a message key string for an error message
- * if invalid. (Scarrrrry ugly interface this.)
- * @param Title &$nt the new title
- * @param bool $auth indicates whether $wgUser's permissions
- * should be checked
- * @return mixed true on success, message name on failure
- * @access public
- */
- function isValidMoveOperation( &$nt, $auth = true, $reason = '' ) {
- global $wgUser;
- if( !$this or !$nt ) {
- return 'badtitletext';
- }
- if( $this->equals( $nt ) ) {
- return 'selfmove';
- }
- if( !$this->isMovable() || !$nt->isMovable() ) {
- return 'immobile_namespace';
+ if ( !$wgDeleteRevisionsLimit ) {
+ return false;
}
- $fname = 'Title::move';
- $oldid = $this->getArticleID();
- $newid = $nt->getArticleID();
+ if ( $this->mIsBigDeletion === null ) {
+ $dbr = wfGetDB( DB_REPLICA );
- if ( strlen( $nt->getDBkey() ) < 1 ) {
- return 'articleexists';
- }
- if ( ( '' == $this->getDBkey() ) ||
- ( !$oldid ) ||
- ( '' == $nt->getDBkey() ) ) {
- return 'badarticleerror';
- }
+ $revCount = $dbr->selectRowCount(
+ 'revision',
+ '1',
+ [ 'rev_page' => $this->getArticleID() ],
+ __METHOD__,
+ [ 'LIMIT' => $wgDeleteRevisionsLimit + 1 ]
+ );
- if ( $auth && (
- !$this->userCanEdit() || !$nt->userCanEdit() ||
- !$this->userCanMove() || !$nt->userCanMove() ) ) {
- return 'protectedpage';
+ $this->mIsBigDeletion = $revCount > $wgDeleteRevisionsLimit;
}
- # The move is allowed only if (1) the target doesn't exist, or
- # (2) the target is a redirect to the source, and has no history
- # (so we can undo bad moves right after they're done).
-
- if ( 0 != $newid ) { # Target exists; check for validity
- if ( ! $this->isValidMoveTarget( $nt ) ) {
- return 'articleexists';
- }
- }
- return true;
+ return $this->mIsBigDeletion;
}
/**
- * Move a title to a new location
- * @param Title &$nt the new title
- * @param bool $auth indicates whether $wgUser's permissions
- * should be checked
- * @return mixed true on success, message name on failure
- * @access public
+ * Get the approximate revision count of this page.
+ *
+ * @return int
*/
- function moveTo( &$nt, $auth = true, $reason = '' ) {
- $err = $this->isValidMoveOperation( $nt, $auth, $reason );
- if( is_string( $err ) ) {
- return $err;
+ public function estimateRevisionCount() {
+ if ( !$this->exists() ) {
+ return 0;
}
- $pageid = $this->getArticleID();
- if( $nt->exists() ) {
- $this->moveOverExistingRedirect( $nt, $reason );
- $pageCountChange = 0;
- } else { # Target didn't exist, do normal move.
- $this->moveToNewTitle( $nt, $newid, $reason );
- $pageCountChange = 1;
- }
- $redirid = $this->getArticleID();
-
- # Fixing category links (those without piped 'alternate' names) to be sorted under the new title
- $dbw =& wfGetDB( DB_MASTER );
- $categorylinks = $dbw->tableName( 'categorylinks' );
- $sql = "UPDATE $categorylinks SET cl_sortkey=" . $dbw->addQuotes( $nt->getPrefixedText() ) .
- " WHERE cl_from=" . $dbw->addQuotes( $pageid ) .
- " AND cl_sortkey=" . $dbw->addQuotes( $this->getPrefixedText() );
- $dbw->query( $sql, 'SpecialMovepage::doSubmit' );
-
- # Update watchlists
-
- $oldnamespace = $this->getNamespace() & ~1;
- $newnamespace = $nt->getNamespace() & ~1;
- $oldtitle = $this->getDBkey();
- $newtitle = $nt->getDBkey();
-
- if( $oldnamespace != $newnamespace || $oldtitle != $newtitle ) {
- WatchedItem::duplicateEntries( $this, $nt );
- }
-
- # Update search engine
- $u = new SearchUpdate( $pageid, $nt->getPrefixedDBkey() );
- $u->doUpdate();
- $u = new SearchUpdate( $redirid, $this->getPrefixedDBkey(), '' );
- $u->doUpdate();
-
- # Update site_stats
- if ( $this->getNamespace() == NS_MAIN and $nt->getNamespace() != NS_MAIN ) {
- # Moved out of main namespace
- # not viewed, edited, removing
- $u = new SiteStatsUpdate( 0, 1, -1, $pageCountChange);
- } elseif ( $this->getNamespace() != NS_MAIN and $nt->getNamespace() == NS_MAIN ) {
- # Moved into main namespace
- # not viewed, edited, adding
- $u = new SiteStatsUpdate( 0, 1, +1, $pageCountChange );
- } elseif ( $pageCountChange ) {
- # Added redirect
- $u = new SiteStatsUpdate( 0, 0, 0, 1 );
- } else{
- $u = false;
- }
- if ( $u ) {
- $u->doUpdate();
+ if ( $this->mEstimateRevisions === null ) {
+ $dbr = wfGetDB( DB_REPLICA );
+ $this->mEstimateRevisions = $dbr->estimateRowCount( 'revision', '*',
+ [ 'rev_page' => $this->getArticleID() ], __METHOD__ );
}
- global $wgUser;
- wfRunHooks( 'TitleMoveComplete', array( &$this, &$nt, &$wgUser, $pageid, $redirid ) );
- return true;
+ return $this->mEstimateRevisions;
}
/**
- * Move page to a title which is at present a redirect to the
- * source page
+ * Get the number of revisions between the given revision.
+ * Used for diffs and other things that really need it.
*
- * @param Title &$nt the page to move to, which should currently
- * be a redirect
- * @access private
+ * @param int|Revision $old Old revision or rev ID (first before range)
+ * @param int|Revision $new New revision or rev ID (first after range)
+ * @param int|null $max Limit of Revisions to count, will be incremented to detect truncations
+ * @return int Number of revisions between these revisions.
*/
- function moveOverExistingRedirect( &$nt, $reason = '' ) {
- global $wgUser, $wgLinkCache, $wgUseSquid, $wgMwRedir;
- $fname = 'Title::moveOverExistingRedirect';
- $comment = wfMsgForContent( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() );
-
- if ( $reason ) {
- $comment .= ": $reason";
+ public function countRevisionsBetween( $old, $new, $max = null ) {
+ if ( !( $old instanceof Revision ) ) {
+ $old = Revision::newFromTitle( $this, (int)$old );
+ }
+ if ( !( $new instanceof Revision ) ) {
+ $new = Revision::newFromTitle( $this, (int)$new );
+ }
+ if ( !$old || !$new ) {
+ return 0; // nothing to compare
+ }
+ $dbr = wfGetDB( DB_REPLICA );
+ $conds = [
+ 'rev_page' => $this->getArticleID(),
+ 'rev_timestamp > ' . $dbr->addQuotes( $dbr->timestamp( $old->getTimestamp() ) ),
+ 'rev_timestamp < ' . $dbr->addQuotes( $dbr->timestamp( $new->getTimestamp() ) )
+ ];
+ if ( $max !== null ) {
+ return $dbr->selectRowCount( 'revision', '1',
+ $conds,
+ __METHOD__,
+ [ 'LIMIT' => $max + 1 ] // extra to detect truncation
+ );
+ } else {
+ return (int)$dbr->selectField( 'revision', 'count(*)', $conds, __METHOD__ );
}
+ }
- $now = wfTimestampNow();
- $rand = wfRandom();
- $newid = $nt->getArticleID();
- $oldid = $this->getArticleID();
- $dbw =& wfGetDB( DB_MASTER );
- $links = $dbw->tableName( 'links' );
-
- # Delete the old redirect. We don't save it to history since
- # by definition if we've got here it's rather uninteresting.
- # We have to remove it so that the next step doesn't trigger
- # a conflict on the unique namespace+title index...
- $dbw->delete( 'page', array( 'page_id' => $newid ), $fname );
-
- # Save a null revision in the page's history notifying of the move
- $nullRevision = Revision::newNullRevision( $dbw, $oldid,
- wfMsgForContent( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() ),
- true );
- $nullRevId = $nullRevision->insertOn( $dbw );
-
- # Change the name of the target page:
- $dbw->update( 'page',
- /* SET */ array(
- 'page_touched' => $dbw->timestamp($now),
- 'page_namespace' => $nt->getNamespace(),
- 'page_title' => $nt->getDBkey(),
- 'page_latest' => $nullRevId,
- ),
- /* WHERE */ array( 'page_id' => $oldid ),
- $fname
- );
- $wgLinkCache->clearLink( $nt->getPrefixedDBkey() );
-
- # Recreate the redirect, this time in the other direction.
- $redirectText = $wgMwRedir->getSynonym( 0 ) . ' [[' . $nt->getPrefixedText() . "]]\n";
- $redirectArticle = new Article( $this );
- $newid = $redirectArticle->insertOn( $dbw );
- $redirectRevision = new Revision( array(
- 'page' => $newid,
- 'comment' => $comment,
- 'text' => $redirectText ) );
- $revid = $redirectRevision->insertOn( $dbw );
- $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
- $wgLinkCache->clearLink( $this->getPrefixedDBkey() );
-
- # Log the move
- $log = new LogPage( 'move' );
- $log->addEntry( 'move_redir', $this, $reason, array( 1 => $nt->getPrefixedText() ) );
-
- # Now, we record the link from the redirect to the new title.
- # It should have no other outgoing links...
- $dbw->delete( 'pagelinks', array( 'pl_from' => $newid ), $fname );
- $dbw->insert( 'pagelinks',
- array(
- 'pl_from' => $newid,
- 'pl_namespace' => $nt->getNamespace(),
- 'pl_title' => $nt->getDbKey() ),
- $fname );
-
- # Purge squid
- if ( $wgUseSquid ) {
- $urls = array_merge( $nt->getSquidURLs(), $this->getSquidURLs() );
- $u = new SquidUpdate( $urls );
- $u->doUpdate();
- }
- }
-
- /**
- * Move page to non-existing title.
- * @param Title &$nt the new Title
- * @param int &$newid set to be the new article ID
- * @access private
- */
- function moveToNewTitle( &$nt, &$newid, $reason = '' ) {
- global $wgUser, $wgLinkCache, $wgUseSquid;
- global $wgMwRedir;
- $fname = 'MovePageForm::moveToNewTitle';
- $comment = wfMsgForContent( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() );
- if ( $reason ) {
- $comment .= ": $reason";
- }
-
- $newid = $nt->getArticleID();
- $oldid = $this->getArticleID();
- $dbw =& wfGetDB( DB_MASTER );
- $now = $dbw->timestamp();
- wfSeedRandom();
- $rand = wfRandom();
-
- # Save a null revision in the page's history notifying of the move
- $nullRevision = Revision::newNullRevision( $dbw, $oldid,
- wfMsgForContent( '1movedto2', $this->getPrefixedText(), $nt->getPrefixedText() ),
- true );
- $nullRevId = $nullRevision->insertOn( $dbw );
-
- # Rename cur entry
- $dbw->update( 'page',
- /* SET */ array(
- 'page_touched' => $now,
- 'page_namespace' => $nt->getNamespace(),
- 'page_title' => $nt->getDBkey(),
- 'page_latest' => $nullRevId,
- ),
- /* WHERE */ array( 'page_id' => $oldid ),
- $fname
+ /**
+ * Get the authors between the given revisions or revision IDs.
+ * Used for diffs and other things that really need it.
+ *
+ * @since 1.23
+ *
+ * @param int|Revision $old Old revision or rev ID (first before range by default)
+ * @param int|Revision $new New revision or rev ID (first after range by default)
+ * @param int $limit Maximum number of authors
+ * @param string|array $options (Optional): Single option, or an array of options:
+ * 'include_old' Include $old in the range; $new is excluded.
+ * 'include_new' Include $new in the range; $old is excluded.
+ * 'include_both' Include both $old and $new in the range.
+ * Unknown option values are ignored.
+ * @return array|null Names of revision authors in the range; null if not both revisions exist
+ */
+ public function getAuthorsBetween( $old, $new, $limit, $options = [] ) {
+ if ( !( $old instanceof Revision ) ) {
+ $old = Revision::newFromTitle( $this, (int)$old );
+ }
+ if ( !( $new instanceof Revision ) ) {
+ $new = Revision::newFromTitle( $this, (int)$new );
+ }
+ // XXX: what if Revision objects are passed in, but they don't refer to this title?
+ // Add $old->getPage() != $new->getPage() || $old->getPage() != $this->getArticleID()
+ // in the sanity check below?
+ if ( !$old || !$new ) {
+ return null; // nothing to compare
+ }
+ $authors = [];
+ $old_cmp = '>';
+ $new_cmp = '<';
+ $options = (array)$options;
+ if ( in_array( 'include_old', $options ) ) {
+ $old_cmp = '>=';
+ }
+ if ( in_array( 'include_new', $options ) ) {
+ $new_cmp = '<=';
+ }
+ if ( in_array( 'include_both', $options ) ) {
+ $old_cmp = '>=';
+ $new_cmp = '<=';
+ }
+ // No DB query needed if $old and $new are the same or successive revisions:
+ if ( $old->getId() === $new->getId() ) {
+ return ( $old_cmp === '>' && $new_cmp === '<' ) ?
+ [] :
+ [ $old->getUserText( Revision::RAW ) ];
+ } elseif ( $old->getId() === $new->getParentId() ) {
+ if ( $old_cmp === '>=' && $new_cmp === '<=' ) {
+ $authors[] = $old->getUserText( Revision::RAW );
+ if ( $old->getUserText( Revision::RAW ) != $new->getUserText( Revision::RAW ) ) {
+ $authors[] = $new->getUserText( Revision::RAW );
+ }
+ } elseif ( $old_cmp === '>=' ) {
+ $authors[] = $old->getUserText( Revision::RAW );
+ } elseif ( $new_cmp === '<=' ) {
+ $authors[] = $new->getUserText( Revision::RAW );
+ }
+ return $authors;
+ }
+ $dbr = wfGetDB( DB_REPLICA );
+ $res = $dbr->select( 'revision', 'DISTINCT rev_user_text',
+ [
+ 'rev_page' => $this->getArticleID(),
+ "rev_timestamp $old_cmp " . $dbr->addQuotes( $dbr->timestamp( $old->getTimestamp() ) ),
+ "rev_timestamp $new_cmp " . $dbr->addQuotes( $dbr->timestamp( $new->getTimestamp() ) )
+ ], __METHOD__,
+ [ 'LIMIT' => $limit + 1 ] // add one so caller knows it was truncated
);
+ foreach ( $res as $row ) {
+ $authors[] = $row->rev_user_text;
+ }
+ return $authors;
+ }
+
+ /**
+ * Get the number of authors between the given revisions or revision IDs.
+ * Used for diffs and other things that really need it.
+ *
+ * @param int|Revision $old Old revision or rev ID (first before range by default)
+ * @param int|Revision $new New revision or rev ID (first after range by default)
+ * @param int $limit Maximum number of authors
+ * @param string|array $options (Optional): Single option, or an array of options:
+ * 'include_old' Include $old in the range; $new is excluded.
+ * 'include_new' Include $new in the range; $old is excluded.
+ * 'include_both' Include both $old and $new in the range.
+ * Unknown option values are ignored.
+ * @return int Number of revision authors in the range; zero if not both revisions exist
+ */
+ public function countAuthorsBetween( $old, $new, $limit, $options = [] ) {
+ $authors = $this->getAuthorsBetween( $old, $new, $limit, $options );
+ return $authors ? count( $authors ) : 0;
+ }
+
+ /**
+ * Compare with another title.
+ *
+ * @param Title $title
+ * @return bool
+ */
+ public function equals( Title $title ) {
+ // Note: === is necessary for proper matching of number-like titles.
+ return $this->getInterwiki() === $title->getInterwiki()
+ && $this->getNamespace() == $title->getNamespace()
+ && $this->getDBkey() === $title->getDBkey();
+ }
- $wgLinkCache->clearLink( $nt->getPrefixedDBkey() );
+ /**
+ * Check if this title is a subpage of another title
+ *
+ * @param Title $title
+ * @return bool
+ */
+ public function isSubpageOf( Title $title ) {
+ return $this->getInterwiki() === $title->getInterwiki()
+ && $this->getNamespace() == $title->getNamespace()
+ && strpos( $this->getDBkey(), $title->getDBkey() . '/' ) === 0;
+ }
- # Insert redirect
- $redirectText = $wgMwRedir->getSynonym( 0 ) . ' [[' . $nt->getPrefixedText() . "]]\n";
- $redirectArticle = new Article( $this );
- $newid = $redirectArticle->insertOn( $dbw );
- $redirectRevision = new Revision( array(
- 'page' => $newid,
- 'comment' => $comment,
- 'text' => $redirectText ) );
- $revid = $redirectRevision->insertOn( $dbw );
- $redirectArticle->updateRevisionOn( $dbw, $redirectRevision, 0 );
- $wgLinkCache->clearLink( $this->getPrefixedDBkey() );
+ /**
+ * Check if page exists. For historical reasons, this function simply
+ * checks for the existence of the title in the page table, and will
+ * thus return false for interwiki links, special pages and the like.
+ * If you want to know if a title can be meaningfully viewed, you should
+ * probably call the isKnown() method instead.
+ *
+ * @param int $flags An optional bit field; may be Title::GAID_FOR_UPDATE to check
+ * from master/for update
+ * @return bool
+ */
+ public function exists( $flags = 0 ) {
+ $exists = $this->getArticleID( $flags ) != 0;
+ Hooks::run( 'TitleExists', [ $this, &$exists ] );
+ return $exists;
+ }
- # Log the move
- $log = new LogPage( 'move' );
- $log->addEntry( 'move', $this, $reason, array( 1 => $nt->getPrefixedText()) );
+ /**
+ * Should links to this title be shown as potentially viewable (i.e. as
+ * "bluelinks"), even if there's no record by this title in the page
+ * table?
+ *
+ * This function is semi-deprecated for public use, as well as somewhat
+ * misleadingly named. You probably just want to call isKnown(), which
+ * calls this function internally.
+ *
+ * (ISSUE: Most of these checks are cheap, but the file existence check
+ * can potentially be quite expensive. Including it here fixes a lot of
+ * existing code, but we might want to add an optional parameter to skip
+ * it and any other expensive checks.)
+ *
+ * @return bool
+ */
+ public function isAlwaysKnown() {
+ $isKnown = null;
- # Purge caches as per article creation
- Article::onArticleCreate( $nt );
+ /**
+ * Allows overriding default behavior for determining if a page exists.
+ * If $isKnown is kept as null, regular checks happen. If it's
+ * a boolean, this value is returned by the isKnown method.
+ *
+ * @since 1.20
+ *
+ * @param Title $title
+ * @param bool|null $isKnown
+ */
+ Hooks::run( 'TitleIsAlwaysKnown', [ $this, &$isKnown ] );
- # Record the just-created redirect's linking to the page
- $dbw->insert( 'pagelinks',
- array(
- 'pl_from' => $newid,
- 'pl_namespace' => $nt->getNamespace(),
- 'pl_title' => $nt->getDBkey() ),
- $fname );
+ if ( !is_null( $isKnown ) ) {
+ return $isKnown;
+ }
- # Non-existent target may have had broken links to it; these must
- # now be touched to update link coloring.
- $nt->touchLinks();
+ if ( $this->isExternal() ) {
+ return true; // any interwiki link might be viewable, for all we know
+ }
- # Purge old title from squid
- # The new title, and links to the new title, are purged in Article::onArticleCreate()
- $titles = $nt->getLinksTo();
- if ( $wgUseSquid ) {
- $urls = $this->getSquidURLs();
- foreach ( $titles as $linkTitle ) {
- $urls[] = $linkTitle->getInternalURL();
- }
- $u = new SquidUpdate( $urls );
- $u->doUpdate();
+ switch ( $this->mNamespace ) {
+ case NS_MEDIA:
+ case NS_FILE:
+ // file exists, possibly in a foreign repo
+ return (bool)wfFindFile( $this );
+ case NS_SPECIAL:
+ // valid special page
+ return SpecialPageFactory::exists( $this->getDBkey() );
+ case NS_MAIN:
+ // selflink, possibly with fragment
+ return $this->mDbkeyform == '';
+ case NS_MEDIAWIKI:
+ // known system message
+ return $this->hasSourceText() !== false;
+ default:
+ return false;
}
}
/**
- * Checks if $this can be moved to a given Title
- * - Selects for update, so don't call it unless you mean business
+ * Does this title refer to a page that can (or might) be meaningfully
+ * viewed? In particular, this function may be used to determine if
+ * links to the title should be rendered as "bluelinks" (as opposed to
+ * "redlinks" to non-existent pages).
+ * Adding something else to this function will cause inconsistency
+ * since LinkHolderArray calls isAlwaysKnown() and does its own
+ * page existence check.
*
- * @param Title &$nt the new title to check
- * @access public
+ * @return bool
*/
- function isValidMoveTarget( $nt ) {
+ public function isKnown() {
+ return $this->isAlwaysKnown() || $this->exists();
+ }
- $fname = 'Title::isValidMoveTarget';
- $dbw =& wfGetDB( DB_MASTER );
+ /**
+ * Does this page have source text?
+ *
+ * @return bool
+ */
+ public function hasSourceText() {
+ if ( $this->exists() ) {
+ return true;
+ }
- # Is it a redirect?
- $id = $nt->getArticleID();
- $obj = $dbw->selectRow( array( 'page', 'revision', 'text'),
- array( 'page_is_redirect','old_text','old_flags' ),
- array( 'page_id' => $id, 'page_latest=rev_id', 'rev_text_id=old_id' ),
- $fname, 'FOR UPDATE' );
-
- if ( !$obj || 0 == $obj->page_is_redirect ) {
- # Not a redirect
- return false;
+ if ( $this->mNamespace == NS_MEDIAWIKI ) {
+ // If the page doesn't exist but is a known system message, default
+ // message content will be displayed, same for language subpages-
+ // Use always content language to avoid loading hundreds of languages
+ // to get the link color.
+ global $wgContLang;
+ list( $name, ) = MessageCache::singleton()->figureMessage(
+ $wgContLang->lcfirst( $this->getText() )
+ );
+ $message = wfMessage( $name )->inLanguage( $wgContLang )->useDatabase( false );
+ return $message->exists();
}
- $text = Revision::getRevisionText( $obj );
- # Does the redirect point to the source?
- if ( preg_match( "/\\[\\[\\s*([^\\]\\|]*)]]/", $text, $m ) ) {
- $redirTitle = Title::newFromText( $m[1] );
- if( !is_object( $redirTitle ) ||
- $redirTitle->getPrefixedDBkey() != $this->getPrefixedDBkey() ) {
- return false;
- }
- } else {
- # Fail safe
+ return false;
+ }
+
+ /**
+ * Get the default message text or false if the message doesn't exist
+ *
+ * @return string|bool
+ */
+ public function getDefaultMessageText() {
+ global $wgContLang;
+
+ if ( $this->getNamespace() != NS_MEDIAWIKI ) { // Just in case
return false;
}
- # Does the article have a history?
- $row = $dbw->selectRow( array( 'page', 'revision'),
- array( 'rev_id' ),
- array( 'page_namespace' => $nt->getNamespace(),
- 'page_title' => $nt->getDBkey(),
- 'page_id=rev_page AND page_latest != rev_id'
- ), $fname, 'FOR UPDATE'
+ list( $name, $lang ) = MessageCache::singleton()->figureMessage(
+ $wgContLang->lcfirst( $this->getText() )
);
+ $message = wfMessage( $name )->inLanguage( $lang )->useDatabase( false );
- # Return true if there was no history
- return $row === false;
+ if ( $message->exists() ) {
+ return $message->plain();
+ } else {
+ return false;
+ }
}
/**
- * Create a redirect; fails if the title already exists; does
- * not notify RC
+ * Updates page_touched for this page; called from LinksUpdate.php
*
- * @param Title $dest the destination of the redirect
- * @param string $comment the comment string describing the move
- * @return bool true on success
- * @access public
+ * @param string $purgeTime [optional] TS_MW timestamp
+ * @return bool True if the update succeeded
*/
- function createRedirect( $dest, $comment ) {
- global $wgUser;
- if ( $this->getArticleID() ) {
+ public function invalidateCache( $purgeTime = null ) {
+ if ( wfReadOnly() ) {
return false;
+ } elseif ( $this->mArticleID === 0 ) {
+ return true; // avoid gap locking if we know it's not there
}
- $fname = 'Title::createRedirect';
- $dbw =& wfGetDB( DB_MASTER );
-
- $article = new Article( $this );
- $newid = $article->insertOn( $dbw );
- $revision = new Revision( array(
- 'page' => $newid,
- 'comment' => $comment,
- 'text' => "#REDIRECT [[" . $dest->getPrefixedText() . "]]\n",
- ) );
- $revisionId = $revision->insertOn( $dbw );
- $article->updateRevisionOn( $dbw, $revision, 0 );
-
- # Link table
- $dbw->insert( 'pagelinks',
- array(
- 'pl_from' => $newid,
- 'pl_namespace' => $dest->getNamespace(),
- 'pl_title' => $dest->getDbKey()
- ), $fname
+ $dbw = wfGetDB( DB_MASTER );
+ $dbw->onTransactionPreCommitOrIdle( function () {
+ ResourceLoaderWikiModule::invalidateModuleCache( $this, null, null, wfWikiID() );
+ } );
+
+ $conds = $this->pageCond();
+ DeferredUpdates::addUpdate(
+ new AutoCommitUpdate(
+ $dbw,
+ __METHOD__,
+ function ( IDatabase $dbw, $fname ) use ( $conds, $purgeTime ) {
+ $dbTimestamp = $dbw->timestamp( $purgeTime ?: time() );
+ $dbw->update(
+ 'page',
+ [ 'page_touched' => $dbTimestamp ],
+ $conds + [ 'page_touched < ' . $dbw->addQuotes( $dbTimestamp ) ],
+ $fname
+ );
+ MediaWikiServices::getInstance()->getLinkCache()->invalidateTitle( $this );
+ }
+ ),
+ DeferredUpdates::PRESEND
);
- Article::onArticleCreate( $this );
return true;
}
/**
- * Get categories to which this Title belongs and return an array of
- * categories' names.
- *
- * @return array an array of parents in the form:
- * $parent => $currentarticle
- * @access public
+ * Update page_touched timestamps and send CDN purge messages for
+ * pages linking to this title. May be sent to the job queue depending
+ * on the number of links. Typically called on create and delete.
*/
- function getParentCategories() {
- global $wgContLang,$wgUser;
+ public function touchLinks() {
+ DeferredUpdates::addUpdate( new HTMLCacheUpdate( $this, 'pagelinks' ) );
+ if ( $this->getNamespace() == NS_CATEGORY ) {
+ DeferredUpdates::addUpdate( new HTMLCacheUpdate( $this, 'categorylinks' ) );
+ }
+ }
- $titlekey = $this->getArticleId();
- $sk =& $wgUser->getSkin();
- $parents = array();
- $dbr =& wfGetDB( DB_SLAVE );
- $categorylinks = $dbr->tableName( 'categorylinks' );
+ /**
+ * Get the last touched timestamp
+ *
+ * @param IDatabase $db Optional db
+ * @return string|false Last-touched timestamp
+ */
+ public function getTouched( $db = null ) {
+ if ( $db === null ) {
+ $db = wfGetDB( DB_REPLICA );
+ }
+ $touched = $db->selectField( 'page', 'page_touched', $this->pageCond(), __METHOD__ );
+ return $touched;
+ }
- # NEW SQL
- $sql = "SELECT * FROM $categorylinks"
- ." WHERE cl_from='$titlekey'"
- ." AND cl_from <> '0'"
- ." ORDER BY cl_sortkey";
+ /**
+ * Get the timestamp when this page was updated since the user last saw it.
+ *
+ * @param User $user
+ * @return string|null
+ */
+ public function getNotificationTimestamp( $user = null ) {
+ global $wgUser;
- $res = $dbr->query ( $sql ) ;
+ // Assume current user if none given
+ if ( !$user ) {
+ $user = $wgUser;
+ }
+ // Check cache first
+ $uid = $user->getId();
+ if ( !$uid ) {
+ return false;
+ }
+ // avoid isset here, as it'll return false for null entries
+ if ( array_key_exists( $uid, $this->mNotificationTimestamp ) ) {
+ return $this->mNotificationTimestamp[$uid];
+ }
+ // Don't cache too much!
+ if ( count( $this->mNotificationTimestamp ) >= self::CACHE_MAX ) {
+ $this->mNotificationTimestamp = [];
+ }
- if($dbr->numRows($res) > 0) {
- while ( $x = $dbr->fetchObject ( $res ) )
- //$data[] = Title::newFromText($wgContLang->getNSText ( NS_CATEGORY ).':'.$x->cl_to);
- $data[$wgContLang->getNSText ( NS_CATEGORY ).':'.$x->cl_to] = $this->getFullText();
- $dbr->freeResult ( $res ) ;
+ $store = MediaWikiServices::getInstance()->getWatchedItemStore();
+ $watchedItem = $store->getWatchedItem( $user, $this );
+ if ( $watchedItem ) {
+ $this->mNotificationTimestamp[$uid] = $watchedItem->getNotificationTimestamp();
} else {
- $data = '';
+ $this->mNotificationTimestamp[$uid] = false;
}
- return $data;
+
+ return $this->mNotificationTimestamp[$uid];
}
/**
- * Get a tree of parent categories
- * @param array $children an array with the children in the keys, to check for circular refs
- * @return array
- * @access public
+ * Generate strings used for xml 'id' names in monobook tabs
+ *
+ * @param string $prepend Defaults to 'nstab-'
+ * @return string XML 'id' name
*/
- function getParentCategoryTree( $children = array() ) {
- $parents = $this->getParentCategories();
-
- if($parents != '') {
- foreach($parents as $parent => $current)
- {
- if ( array_key_exists( $parent, $children ) ) {
- # Circular reference
- $stack[$parent] = array();
- } else {
- $nt = Title::newFromText($parent);
- $stack[$parent] = $nt->getParentCategoryTree( $children + array($parent => 1) );
- }
- }
- return $stack;
+ public function getNamespaceKey( $prepend = 'nstab-' ) {
+ global $wgContLang;
+ // Gets the subject namespace if this title
+ $namespace = MWNamespace::getSubject( $this->getNamespace() );
+ // Checks if canonical namespace name exists for namespace
+ if ( MWNamespace::exists( $this->getNamespace() ) ) {
+ // Uses canonical namespace name
+ $namespaceKey = MWNamespace::getCanonicalName( $namespace );
} else {
- return array();
+ // Uses text of namespace
+ $namespaceKey = $this->getSubjectNsText();
}
+ // Makes namespace key lowercase
+ $namespaceKey = $wgContLang->lc( $namespaceKey );
+ // Uses main
+ if ( $namespaceKey == '' ) {
+ $namespaceKey = 'main';
+ }
+ // Changes file to image for backwards compatibility
+ if ( $namespaceKey == 'file' ) {
+ $namespaceKey = 'image';
+ }
+ return $prepend . $namespaceKey;
}
-
/**
- * Get an associative array for selecting this title from
- * the "cur" table
+ * Get all extant redirects to this Title
*
- * @return array
- * @access public
+ * @param int|null $ns Single namespace to consider; null to consider all namespaces
+ * @return Title[] Array of Title redirects to this title
*/
- function curCond() {
- wfDebugDieBacktrace( 'curCond called' );
- return array( 'cur_namespace' => $this->mNamespace, 'cur_title' => $this->mDbkeyform );
+ public function getRedirectsHere( $ns = null ) {
+ $redirs = [];
+
+ $dbr = wfGetDB( DB_REPLICA );
+ $where = [
+ 'rd_namespace' => $this->getNamespace(),
+ 'rd_title' => $this->getDBkey(),
+ 'rd_from = page_id'
+ ];
+ if ( $this->isExternal() ) {
+ $where['rd_interwiki'] = $this->getInterwiki();
+ } else {
+ $where[] = 'rd_interwiki = ' . $dbr->addQuotes( '' ) . ' OR rd_interwiki IS NULL';
+ }
+ if ( !is_null( $ns ) ) {
+ $where['page_namespace'] = $ns;
+ }
+
+ $res = $dbr->select(
+ [ 'redirect', 'page' ],
+ [ 'page_namespace', 'page_title' ],
+ $where,
+ __METHOD__
+ );
+
+ foreach ( $res as $row ) {
+ $redirs[] = self::newFromRow( $row );
+ }
+ return $redirs;
}
/**
- * Get an associative array for selecting this title from the
- * "old" table
+ * Check if this Title is a valid redirect target
*
- * @return array
- * @access public
+ * @return bool
*/
- function oldCond() {
- wfDebugDieBacktrace( 'oldCond called' );
- return array( 'old_namespace' => $this->mNamespace, 'old_title' => $this->mDbkeyform );
+ public function isValidRedirectTarget() {
+ global $wgInvalidRedirectTargets;
+
+ if ( $this->isSpecialPage() ) {
+ // invalid redirect targets are stored in a global array, but explicitly disallow Userlogout here
+ if ( $this->isSpecial( 'Userlogout' ) ) {
+ return false;
+ }
+
+ foreach ( $wgInvalidRedirectTargets as $target ) {
+ if ( $this->isSpecial( $target ) ) {
+ return false;
+ }
+ }
+ }
+
+ return true;
}
/**
- * Get the revision ID of the previous revision
+ * Get a backlink cache object
*
- * @param integer $revision Revision ID. Get the revision that was before this one.
- * @return interger $oldrevision|false
+ * @return BacklinkCache
*/
- function getPreviousRevisionID( $revision ) {
- $dbr =& wfGetDB( DB_SLAVE );
- return $dbr->selectField( 'revision', 'rev_id',
- 'rev_page=' . IntVal( $this->getArticleId() ) .
- ' AND rev_id<' . IntVal( $revision ) . ' ORDER BY rev_id DESC' );
+ public function getBacklinkCache() {
+ return BacklinkCache::get( $this );
}
/**
- * Get the revision ID of the next revision
+ * Whether the magic words __INDEX__ and __NOINDEX__ function for this page.
*
- * @param integer $revision Revision ID. Get the revision that was after this one.
- * @return interger $oldrevision|false
+ * @return bool
*/
- function getNextRevisionID( $revision ) {
- $dbr =& wfGetDB( DB_SLAVE );
- return $dbr->selectField( 'revision', 'rev_id',
- 'rev_page=' . IntVal( $this->getArticleId() ) .
- ' AND rev_id>' . IntVal( $revision ) . ' ORDER BY rev_id' );
+ public function canUseNoindex() {
+ global $wgExemptFromUserRobotsControl;
+
+ $bannedNamespaces = is_null( $wgExemptFromUserRobotsControl )
+ ? MWNamespace::getContentNamespaces()
+ : $wgExemptFromUserRobotsControl;
+
+ return !in_array( $this->mNamespace, $bannedNamespaces );
}
/**
- * Compare with another title.
+ * Returns the raw sort key to be used for categories, with the specified
+ * prefix. This will be fed to Collation::getSortKey() to get a
+ * binary sortkey that can be used for actual sorting.
*
- * @param Title $title
- * @return bool
+ * @param string $prefix The prefix to be used, specified using
+ * {{defaultsort:}} or like [[Category:Foo|prefix]]. Empty for no
+ * prefix.
+ * @return string
*/
- function equals( $title ) {
- return $this->getInterwiki() == $title->getInterwiki()
- && $this->getNamespace() == $title->getNamespace()
- && $this->getDbkey() == $title->getDbkey();
+ public function getCategorySortkey( $prefix = '' ) {
+ $unprefixed = $this->getText();
+
+ // Anything that uses this hook should only depend
+ // on the Title object passed in, and should probably
+ // tell the users to run updateCollations.php --force
+ // in order to re-sort existing category relations.
+ Hooks::run( 'GetDefaultSortkey', [ $this, &$unprefixed ] );
+ if ( $prefix !== '' ) {
+ # Separate with a line feed, so the unprefixed part is only used as
+ # a tiebreaker when two pages have the exact same prefix.
+ # In UCA, tab is the only character that can sort above LF
+ # so we strip both of them from the original prefix.
+ $prefix = strtr( $prefix, "\n\t", ' ' );
+ return "$prefix\n$unprefixed";
+ }
+ return $unprefixed;
}
/**
- * Check if page exists
- * @return bool
+ * Returns the page language code saved in the database, if $wgPageLanguageUseDB is set
+ * to true in LocalSettings.php, otherwise returns false. If there is no language saved in
+ * the db, it will return NULL.
+ *
+ * @return string|null|bool
*/
- function exists() {
- return $this->getArticleId() != 0;
+ private function getDbPageLanguageCode() {
+ global $wgPageLanguageUseDB;
+
+ // check, if the page language could be saved in the database, and if so and
+ // the value is not requested already, lookup the page language using LinkCache
+ if ( $wgPageLanguageUseDB && $this->mDbPageLanguage === false ) {
+ $linkCache = LinkCache::singleton();
+ $linkCache->addLinkObj( $this );
+ $this->mDbPageLanguage = $linkCache->getGoodLinkFieldObj( $this, 'lang' );
+ }
+
+ return $this->mDbPageLanguage;
}
/**
- * Should a link should be displayed as a known link, just based on its title?
+ * Get the language in which the content of this page is written in
+ * wikitext. Defaults to $wgContLang, but in certain cases it can be
+ * e.g. $wgLang (such as special pages, which are in the user language).
*
- * Currently, a self-link with a fragment, special pages and image pages are in
- * this category. Special pages never exist in the database. Some images do not
- * have description pages in the database, but the description page contains
- * useful history information that the user may want to link to.
+ * @since 1.18
+ * @return Language
*/
- function isAlwaysKnown() {
- return $this->isExternal() || ( 0 == $this->mNamespace && "" == $this->mDbkeyform )
- || NS_SPECIAL == $this->mNamespace || NS_IMAGE == $this->mNamespace;
+ public function getPageLanguage() {
+ global $wgLang, $wgLanguageCode;
+ if ( $this->isSpecialPage() ) {
+ // special pages are in the user language
+ return $wgLang;
+ }
+
+ // Checking if DB language is set
+ $dbPageLanguage = $this->getDbPageLanguageCode();
+ if ( $dbPageLanguage ) {
+ return wfGetLangObj( $dbPageLanguage );
+ }
+
+ if ( !$this->mPageLanguage || $this->mPageLanguage[1] !== $wgLanguageCode ) {
+ // Note that this may depend on user settings, so the cache should
+ // be only per-request.
+ // NOTE: ContentHandler::getPageLanguage() may need to load the
+ // content to determine the page language!
+ // Checking $wgLanguageCode hasn't changed for the benefit of unit
+ // tests.
+ $contentHandler = ContentHandler::getForTitle( $this );
+ $langObj = $contentHandler->getPageLanguage( $this );
+ $this->mPageLanguage = [ $langObj->getCode(), $wgLanguageCode ];
+ } else {
+ $langObj = wfGetLangObj( $this->mPageLanguage[0] );
+ }
+
+ return $langObj;
}
/**
- * Update page_touched timestamps on pages linking to this title.
- * In principal, this could be backgrounded and could also do squid
- * purging.
+ * Get the language in which the content of this page is written when
+ * viewed by user. Defaults to $wgContLang, but in certain cases it can be
+ * e.g. $wgLang (such as special pages, which are in the user language).
+ *
+ * @since 1.20
+ * @return Language
*/
- function touchLinks() {
- $fname = 'Title::touchLinks';
-
- $dbw =& wfGetDB( DB_MASTER );
+ public function getPageViewLanguage() {
+ global $wgLang;
+
+ if ( $this->isSpecialPage() ) {
+ // If the user chooses a variant, the content is actually
+ // in a language whose code is the variant code.
+ $variant = $wgLang->getPreferredVariant();
+ if ( $wgLang->getCode() !== $variant ) {
+ return Language::factory( $variant );
+ }
- $res = $dbw->select( 'pagelinks',
- array( 'pl_from' ),
- array(
- 'pl_namespace' => $this->getNamespace(),
- 'pl_title' => $this->getDbKey() ),
- $fname );
- if ( 0 == $dbw->numRows( $res ) ) {
- return;
+ return $wgLang;
}
- $arr = array();
- $toucharr = array();
- while( $row = $dbw->fetchObject( $res ) ) {
- $toucharr[] = $row->pl_from;
+ // Checking if DB language is set
+ $dbPageLanguage = $this->getDbPageLanguageCode();
+ if ( $dbPageLanguage ) {
+ $pageLang = wfGetLangObj( $dbPageLanguage );
+ $variant = $pageLang->getPreferredVariant();
+ if ( $pageLang->getCode() !== $variant ) {
+ $pageLang = Language::factory( $variant );
+ }
+
+ return $pageLang;
}
- $dbw->update( 'page', /* SET */ array( 'page_touched' => $dbw->timestamp() ),
- /* WHERE */ array( 'page_id' => $toucharr ),$fname);
+ // @note Can't be cached persistently, depends on user settings.
+ // @note ContentHandler::getPageViewLanguage() may need to load the
+ // content to determine the page language!
+ $contentHandler = ContentHandler::getForTitle( $this );
+ $pageLang = $contentHandler->getPageViewLanguage( $this );
+ return $pageLang;
}
- function trackbackURL() {
- global $wgTitle, $wgScriptPath, $wgServer;
+ /**
+ * Get a list of rendered edit notices for this page.
+ *
+ * Array is keyed by the original message key, and values are rendered using parseAsBlock, so
+ * they will already be wrapped in paragraphs.
+ *
+ * @since 1.21
+ * @param int $oldid Revision ID that's being edited
+ * @return array
+ */
+ public function getEditNotices( $oldid = 0 ) {
+ $notices = [];
+
+ // Optional notice for the entire namespace
+ $editnotice_ns = 'editnotice-' . $this->getNamespace();
+ $msg = wfMessage( $editnotice_ns );
+ if ( $msg->exists() ) {
+ $html = $msg->parseAsBlock();
+ // Edit notices may have complex logic, but output nothing (T91715)
+ if ( trim( $html ) !== '' ) {
+ $notices[$editnotice_ns] = Html::rawElement(
+ 'div',
+ [ 'class' => [
+ 'mw-editnotice',
+ 'mw-editnotice-namespace',
+ Sanitizer::escapeClass( "mw-$editnotice_ns" )
+ ] ],
+ $html
+ );
+ }
+ }
+
+ if ( MWNamespace::hasSubpages( $this->getNamespace() ) ) {
+ // Optional notice for page itself and any parent page
+ $parts = explode( '/', $this->getDBkey() );
+ $editnotice_base = $editnotice_ns;
+ while ( count( $parts ) > 0 ) {
+ $editnotice_base .= '-' . array_shift( $parts );
+ $msg = wfMessage( $editnotice_base );
+ if ( $msg->exists() ) {
+ $html = $msg->parseAsBlock();
+ if ( trim( $html ) !== '' ) {
+ $notices[$editnotice_base] = Html::rawElement(
+ 'div',
+ [ 'class' => [
+ 'mw-editnotice',
+ 'mw-editnotice-base',
+ Sanitizer::escapeClass( "mw-$editnotice_base" )
+ ] ],
+ $html
+ );
+ }
+ }
+ }
+ } else {
+ // Even if there are no subpages in namespace, we still don't want "/" in MediaWiki message keys
+ $editnoticeText = $editnotice_ns . '-' . strtr( $this->getDBkey(), '/', '-' );
+ $msg = wfMessage( $editnoticeText );
+ if ( $msg->exists() ) {
+ $html = $msg->parseAsBlock();
+ if ( trim( $html ) !== '' ) {
+ $notices[$editnoticeText] = Html::rawElement(
+ 'div',
+ [ 'class' => [
+ 'mw-editnotice',
+ 'mw-editnotice-page',
+ Sanitizer::escapeClass( "mw-$editnoticeText" )
+ ] ],
+ $html
+ );
+ }
+ }
+ }
- return "$wgServer$wgScriptPath/trackback.php?article="
- . htmlspecialchars(urlencode($wgTitle->getPrefixedDBkey()));
+ Hooks::run( 'TitleGetEditNotices', [ $this, $oldid, &$notices ] );
+ return $notices;
}
- function trackbackRDF() {
- $url = htmlspecialchars($this->getFullURL());
- $title = htmlspecialchars($this->getText());
- $tburl = $this->trackbackURL();
+ /**
+ * @return array
+ */
+ public function __sleep() {
+ return [
+ 'mNamespace',
+ 'mDbkeyform',
+ 'mFragment',
+ 'mInterwiki',
+ 'mLocalInterwiki',
+ 'mUserCaseDBKey',
+ 'mDefaultNamespace',
+ ];
+ }
- return "
-<rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"
- xmlns:dc=\"http://purl.org/dc/elements/1.1/\"
- xmlns:trackback=\"http://madskills.com/public/xml/rss/module/trackback/\">
-<rdf:Description
- rdf:about=\"$url\"
- dc:identifier=\"$url\"
- dc:title=\"$title\"
- trackback:ping=\"$tburl\" />
-</rdf:RDF>";
+ public function __wakeup() {
+ $this->mArticleID = ( $this->mNamespace >= 0 ) ? -1 : 0;
+ $this->mUrlform = wfUrlencode( $this->mDbkeyform );
+ $this->mTextform = strtr( $this->mDbkeyform, '_', ' ' );
}
+
}
-?>