Update to MediaWiki 1.24.1

1 files changed, 507 insertions, 203 deletions

diff --git a/includes/parser/CoreParserFunctions.php b/includes/parser/CoreParserFunctions.php
index 4b6eeca2..eacbecd4 100644
--- a/includes/parser/CoreParserFunctions.php
+++ b/includes/parser/CoreParserFunctions.php
@@ -27,97 +27,69 @@
  */
 class CoreParserFunctions {
 	/**
-	 * @param $parser Parser
+	 * @param Parser $parser
 	 * @return void
 	 */
-	static function register( $parser ) {
+	public static function register( $parser ) {
 		global $wgAllowDisplayTitle, $wgAllowSlowParserFunctions;
 
-		# Syntax for arguments (see self::setFunctionHook):
+		# Syntax for arguments (see Parser::setFunctionHook):
 		#  "name for lookup in localized magic words array",
 		#  function callback,
 		#  optional SFH_NO_HASH to omit the hash from calls (e.g. {{int:...}}
 		#    instead of {{#int:...}})
+		$noHashFunctions = array(
+			'ns', 'nse', 'urlencode', 'lcfirst', 'ucfirst', 'lc', 'uc',
+			'localurl', 'localurle', 'fullurl', 'fullurle', 'canonicalurl',
+			'canonicalurle', 'formatnum', 'grammar', 'gender', 'plural',
+			'numberofpages', 'numberofusers', 'numberofactiveusers',
+			'numberofarticles', 'numberoffiles', 'numberofadmins',
+			'numberingroup', 'numberofedits', 'numberofviews', 'language',
+			'padleft', 'padright', 'anchorencode', 'defaultsort', 'filepath',
+			'pagesincategory', 'pagesize', 'protectionlevel',
+			'namespacee', 'namespacenumber', 'talkspace', 'talkspacee',
+			'subjectspace', 'subjectspacee', 'pagename', 'pagenamee',
+			'fullpagename', 'fullpagenamee', 'rootpagename', 'rootpagenamee',
+			'basepagename', 'basepagenamee', 'subpagename', 'subpagenamee',
+			'talkpagename', 'talkpagenamee', 'subjectpagename',
+			'subjectpagenamee', 'pageid', 'revisionid', 'revisionday',
+			'revisionday2', 'revisionmonth', 'revisionmonth1', 'revisionyear',
+			'revisiontimestamp', 'revisionuser', 'cascadingsources',
+		);
+		foreach ( $noHashFunctions as $func ) {
+			$parser->setFunctionHook( $func, array( __CLASS__, $func ), SFH_NO_HASH );
+		}
 
-		$parser->setFunctionHook( 'int',              array( __CLASS__, 'intFunction'      ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'ns',               array( __CLASS__, 'ns'               ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'nse',              array( __CLASS__, 'nse'              ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'urlencode',        array( __CLASS__, 'urlencode'        ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'lcfirst',          array( __CLASS__, 'lcfirst'          ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'ucfirst',          array( __CLASS__, 'ucfirst'          ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'lc',               array( __CLASS__, 'lc'               ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'uc',               array( __CLASS__, 'uc'               ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'localurl',         array( __CLASS__, 'localurl'         ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'localurle',        array( __CLASS__, 'localurle'        ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'fullurl',          array( __CLASS__, 'fullurl'          ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'fullurle',         array( __CLASS__, 'fullurle'         ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'canonicalurl',     array( __CLASS__, 'canonicalurl'     ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'canonicalurle',    array( __CLASS__, 'canonicalurle'    ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'formatnum',        array( __CLASS__, 'formatnum'        ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'grammar',          array( __CLASS__, 'grammar'          ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'gender',           array( __CLASS__, 'gender'           ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'plural',           array( __CLASS__, 'plural'           ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'numberofpages',    array( __CLASS__, 'numberofpages'    ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'numberofusers',    array( __CLASS__, 'numberofusers'    ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'numberofactiveusers', array( __CLASS__, 'numberofactiveusers' ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'numberofarticles', array( __CLASS__, 'numberofarticles' ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'numberoffiles',    array( __CLASS__, 'numberoffiles'    ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'numberofadmins',   array( __CLASS__, 'numberofadmins'   ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'numberingroup',    array( __CLASS__, 'numberingroup'    ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'numberofedits',    array( __CLASS__, 'numberofedits'    ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'numberofviews',    array( __CLASS__, 'numberofviews'    ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'language',         array( __CLASS__, 'language'         ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'padleft',          array( __CLASS__, 'padleft'          ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'padright',         array( __CLASS__, 'padright'         ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'anchorencode',     array( __CLASS__, 'anchorencode'     ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'special',          array( __CLASS__, 'special'          ) );
-		$parser->setFunctionHook( 'speciale',         array( __CLASS__, 'speciale'         ) );
-		$parser->setFunctionHook( 'defaultsort',      array( __CLASS__, 'defaultsort'      ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'filepath',         array( __CLASS__, 'filepath'         ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'pagesincategory',  array( __CLASS__, 'pagesincategory'  ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'pagesize',         array( __CLASS__, 'pagesize'         ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'protectionlevel',  array( __CLASS__, 'protectionlevel'  ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'namespace',        array( __CLASS__, 'mwnamespace'      ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'namespacee',       array( __CLASS__, 'namespacee'       ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'namespacenumber',  array( __CLASS__, 'namespacenumber'  ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'talkspace',        array( __CLASS__, 'talkspace'        ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'talkspacee',       array( __CLASS__, 'talkspacee'       ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'subjectspace',     array( __CLASS__, 'subjectspace'     ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'subjectspacee',    array( __CLASS__, 'subjectspacee'    ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'pagename',         array( __CLASS__, 'pagename'         ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'pagenamee',        array( __CLASS__, 'pagenamee'        ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'fullpagename',     array( __CLASS__, 'fullpagename'     ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'fullpagenamee',    array( __CLASS__, 'fullpagenamee'    ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'rootpagename',     array( __CLASS__, 'rootpagename'     ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'rootpagenamee',    array( __CLASS__, 'rootpagenamee'    ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'basepagename',     array( __CLASS__, 'basepagename'     ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'basepagenamee',    array( __CLASS__, 'basepagenamee'    ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'subpagename',      array( __CLASS__, 'subpagename'      ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'subpagenamee',     array( __CLASS__, 'subpagenamee'     ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'talkpagename',     array( __CLASS__, 'talkpagename'     ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'talkpagenamee',    array( __CLASS__, 'talkpagenamee'    ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'subjectpagename',  array( __CLASS__, 'subjectpagename'  ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'subjectpagenamee', array( __CLASS__, 'subjectpagenamee' ), SFH_NO_HASH );
-		$parser->setFunctionHook( 'tag',              array( __CLASS__, 'tagObj'           ), SFH_OBJECT_ARGS );
-		$parser->setFunctionHook( 'formatdate',       array( __CLASS__, 'formatDate'       ) );
+		$parser->setFunctionHook( 'namespace', array( __CLASS__, 'mwnamespace' ), SFH_NO_HASH );
+		$parser->setFunctionHook( 'int', array( __CLASS__, 'intFunction' ), SFH_NO_HASH );
+		$parser->setFunctionHook( 'special', array( __CLASS__, 'special' ) );
+		$parser->setFunctionHook( 'speciale', array( __CLASS__, 'speciale' ) );
+		$parser->setFunctionHook( 'tag', array( __CLASS__, 'tagObj' ), SFH_OBJECT_ARGS );
+		$parser->setFunctionHook( 'formatdate', array( __CLASS__, 'formatDate' ) );
 
 		if ( $wgAllowDisplayTitle ) {
 			$parser->setFunctionHook( 'displaytitle', array( __CLASS__, 'displaytitle' ), SFH_NO_HASH );
 		}
 		if ( $wgAllowSlowParserFunctions ) {
-			$parser->setFunctionHook( 'pagesinnamespace', array( __CLASS__, 'pagesinnamespace' ), SFH_NO_HASH );
+			$parser->setFunctionHook(
+				'pagesinnamespace',
+				array( __CLASS__, 'pagesinnamespace' ),
+				SFH_NO_HASH
+			);
 		}
 	}
 
 	/**
-	 * @param $parser Parser
+	 * @param Parser $parser
 	 * @param string $part1
 	 * @return array
 	 */
-	static function intFunction( $parser, $part1 = '' /*, ... */ ) {
+	public static function intFunction( $parser, $part1 = '' /*, ... */ ) {
 		if ( strval( $part1 ) !== '' ) {
 			$args = array_slice( func_get_args(), 2 );
-			$message = wfMessage( $part1, $args )->inLanguage( $parser->getOptions()->getUserLangObj() )->plain();
+			$message = wfMessage( $part1, $args )
+				->inLanguage( $parser->getOptions()->getUserLangObj() )->plain();
+
 			return array( $message, 'noparse' => false );
 		} else {
 			return array( 'found' => false );
@@ -125,12 +97,13 @@ class CoreParserFunctions {
 	}
 
 	/**
-	 * @param $parser Parser
-	 * @param  $date
-	 * @param null $defaultPref
-	 * @return mixed|string
+	 * @param Parser $parser
+	 * @param string $date
+	 * @param string $defaultPref
+	 *
+	 * @return string
 	 */
-	static function formatDate( $parser, $date, $defaultPref = null ) {
+	public static function formatDate( $parser, $date, $defaultPref = null ) {
 		$lang = $parser->getFunctionLang();
 		$df = DateFormatter::getInstance( $lang );
 
@@ -148,7 +121,7 @@ class CoreParserFunctions {
 		return $date;
 	}
 
-	static function ns( $parser, $part1 = '' ) {
+	public static function ns( $parser, $part1 = '' ) {
 		global $wgContLang;
 		if ( intval( $part1 ) || $part1 == "0" ) {
 			$index = intval( $part1 );
@@ -162,7 +135,7 @@ class CoreParserFunctions {
 		}
 	}
 
-	static function nse( $parser, $part1 = '' ) {
+	public static function nse( $parser, $part1 = '' ) {
 		$ret = self::ns( $parser, $part1 );
 		if ( is_string( $ret ) ) {
 			$ret = wfUrlencode( str_replace( ' ', '_', $ret ) );
@@ -177,12 +150,12 @@ class CoreParserFunctions {
 	 * Or to encode a value for the HTTP "path", spaces are encoded as '%20'.
 	 * For links to "wiki"s, or similar software, spaces are encoded as '_',
 	 *
-	 * @param $parser Parser object
+	 * @param Parser $parser
 	 * @param string $s The text to encode.
 	 * @param string $arg (optional): The type of encoding.
 	 * @return string
 	 */
-	static function urlencode( $parser, $s = '', $arg = null ) {
+	public static function urlencode( $parser, $s = '', $arg = null ) {
 		static $magicWords = null;
 		if ( is_null( $magicWords ) ) {
 			$magicWords = new MagicWordArray( array( 'url_path', 'url_query', 'url_wiki' ) );
@@ -208,44 +181,76 @@ class CoreParserFunctions {
 		return $parser->markerSkipCallback( $s, $func );
 	}
 
-	static function lcfirst( $parser, $s = '' ) {
+	public static function lcfirst( $parser, $s = '' ) {
 		global $wgContLang;
 		return $wgContLang->lcfirst( $s );
 	}
 
-	static function ucfirst( $parser, $s = '' ) {
+	public static function ucfirst( $parser, $s = '' ) {
 		global $wgContLang;
 		return $wgContLang->ucfirst( $s );
 	}
 
 	/**
-	 * @param $parser Parser
+	 * @param Parser $parser
 	 * @param string $s
-	 * @return
+	 * @return string
 	 */
-	static function lc( $parser, $s = '' ) {
+	public static function lc( $parser, $s = '' ) {
 		global $wgContLang;
 		return $parser->markerSkipCallback( $s, array( $wgContLang, 'lc' ) );
 	}
 
 	/**
-	 * @param $parser Parser
+	 * @param Parser $parser
 	 * @param string $s
-	 * @return
+	 * @return string
 	 */
-	static function uc( $parser, $s = '' ) {
+	public static function uc( $parser, $s = '' ) {
 		global $wgContLang;
 		return $parser->markerSkipCallback( $s, array( $wgContLang, 'uc' ) );
 	}
 
-	static function localurl( $parser, $s = '', $arg = null ) { return self::urlFunction( 'getLocalURL', $s, $arg ); }
-	static function localurle( $parser, $s = '', $arg = null ) { return self::urlFunction( 'escapeLocalURL', $s, $arg ); }
-	static function fullurl( $parser, $s = '', $arg = null ) { return self::urlFunction( 'getFullURL', $s, $arg ); }
-	static function fullurle( $parser, $s = '', $arg = null ) { return self::urlFunction( 'escapeFullURL', $s, $arg ); }
-	static function canonicalurl( $parser, $s = '', $arg = null ) { return self::urlFunction( 'getCanonicalURL', $s, $arg ); }
-	static function canonicalurle( $parser, $s = '', $arg = null ) { return self::urlFunction( 'escapeCanonicalURL', $s, $arg ); }
+	public static function localurl( $parser, $s = '', $arg = null ) {
+		return self::urlFunction( 'getLocalURL', $s, $arg );
+	}
+
+	public static function localurle( $parser, $s = '', $arg = null ) {
+		$temp = self::urlFunction( 'getLocalURL', $s, $arg );
+		if ( !is_string( $temp ) ) {
+			return $temp;
+		} else {
+			return htmlspecialchars( $temp );
+		}
+	}
+
+	public static function fullurl( $parser, $s = '', $arg = null ) {
+		return self::urlFunction( 'getFullURL', $s, $arg );
+	}
+
+	public static function fullurle( $parser, $s = '', $arg = null ) {
+		$temp = self::urlFunction( 'getFullURL', $s, $arg );
+		if ( !is_string( $temp ) ) {
+			return $temp;
+		} else {
+			return htmlspecialchars( $temp );
+		}
+	}
+
+	public static function canonicalurl( $parser, $s = '', $arg = null ) {
+		return self::urlFunction( 'getCanonicalURL', $s, $arg );
+	}
 
-	static function urlFunction( $func, $s = '', $arg = null ) {
+	public static function canonicalurle( $parser, $s = '', $arg = null ) {
+		$temp = self::urlFunction( 'getCanonicalURL', $s, $arg );
+		if ( !is_string( $temp ) ) {
+			return $temp;
+		} else {
+			return htmlspecialchars( $temp );
+		}
+	}
+
+	public static function urlFunction( $func, $s = '', $arg = null ) {
 		$title = Title::newFromText( $s );
 		# Due to order of execution of a lot of bits, the values might be encoded
 		# before arriving here; if that's true, then the title can't be created
@@ -271,12 +276,12 @@ class CoreParserFunctions {
 	}
 
 	/**
-	 * @param $parser Parser
+	 * @param Parser $parser
 	 * @param string $num
 	 * @param string $arg
 	 * @return string
 	 */
-	static function formatnum( $parser, $num = '', $arg = null ) {
+	public static function formatnum( $parser, $num = '', $arg = null ) {
 		if ( self::matchAgainstMagicword( 'rawsuffix', $arg ) ) {
 			$func = array( $parser->getFunctionLang(), 'parseFormattedNumber' );
 		} elseif ( self::matchAgainstMagicword( 'nocommafysuffix', $arg ) ) {
@@ -288,22 +293,22 @@ class CoreParserFunctions {
 	}
 
 	/**
-	 * @param $parser Parser
+	 * @param Parser $parser
 	 * @param string $case
 	 * @param string $word
-	 * @return
+	 * @return string
 	 */
-	static function grammar( $parser, $case = '', $word = '' ) {
+	public static function grammar( $parser, $case = '', $word = '' ) {
 		$word = $parser->killMarkers( $word );
 		return $parser->getFunctionLang()->convertGrammar( $word, $case );
 	}
 
 	/**
-	 * @param $parser Parser
-	 * @param $username string
-	 * @return
+	 * @param Parser $parser
+	 * @param string $username
+	 * @return string
 	 */
-	static function gender( $parser, $username ) {
+	public static function gender( $parser, $username ) {
 		wfProfileIn( __METHOD__ );
 		$forms = array_slice( func_get_args(), 2 );
 
@@ -341,11 +346,11 @@ class CoreParserFunctions {
 	}
 
 	/**
-	 * @param $parser Parser
+	 * @param Parser $parser
 	 * @param string $text
-	 * @return
+	 * @return string
 	 */
-	static function plural( $parser, $text = '' ) {
+	public static function plural( $parser, $text = '' ) {
 		$forms = array_slice( func_get_args(), 2 );
 		$text = $parser->getFunctionLang()->parseFormattedNumber( $text );
 		settype( $text, ctype_digit( $text ) ? 'int' : 'float' );
@@ -356,13 +361,20 @@ class CoreParserFunctions {
 	 * Override the title of the page when viewed, provided we've been given a
 	 * title which will normalise to the canonical title
 	 *
-	 * @param $parser Parser: parent parser
-	 * @param string $text desired title text
-	 * @return String
+	 * @param Parser $parser Parent parser
+	 * @param string $text Desired title text
+	 * @param string $uarg
+	 * @return string
 	 */
-	static function displaytitle( $parser, $text = '' ) {
+	public static function displaytitle( $parser, $text = '', $uarg = '' ) {
 		global $wgRestrictDisplayTitle;
 
+		static $magicWords = null;
+		if ( is_null( $magicWords ) ) {
+			$magicWords = new MagicWordArray( array( 'displaytitle_noerror', 'displaytitle_noreplace' ) );
+		}
+		$arg = $magicWords->matchStartToEnd( $uarg );
+
 		// parse a limited subset of wiki markup (just the single quote items)
 		$text = $parser->doQuotes( $text );
 
@@ -373,7 +385,7 @@ class CoreParserFunctions {
 		// list of disallowed tags for DISPLAYTITLE
 		// these will be escaped even though they are allowed in normal wiki text
 		$bad = array( 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'div', 'blockquote', 'ol', 'ul', 'li', 'hr',
-			'table', 'tr', 'th', 'td', 'dl', 'dd', 'caption', 'p', 'ruby', 'rb', 'rt', 'rp', 'br' );
+			'table', 'tr', 'th', 'td', 'dl', 'dd', 'caption', 'p', 'ruby', 'rb', 'rt', 'rtc', 'rp', 'br' );
 
 		// disallow some styles that could be used to bypass $wgRestrictDisplayTitle
 		if ( $wgRestrictDisplayTitle ) {
@@ -399,13 +411,34 @@ class CoreParserFunctions {
 		// only requested titles that normalize to the actual title are allowed through
 		// if $wgRestrictDisplayTitle is true (it is by default)
 		// mimic the escaping process that occurs in OutputPage::setPageTitle
-		$text = Sanitizer::normalizeCharReferences( Sanitizer::removeHTMLtags( $text, $htmlTagsCallback, array(), array(), $bad ) );
+		$text = Sanitizer::normalizeCharReferences( Sanitizer::removeHTMLtags(
+			$text,
+			$htmlTagsCallback,
+			array(),
+			array(),
+			$bad
+		) );
 		$title = Title::newFromText( Sanitizer::stripAllTags( $text ) );
 
-		if ( !$wgRestrictDisplayTitle ) {
-			$parser->mOutput->setDisplayTitle( $text );
-		} elseif ( $title instanceof Title && $title->getFragment() == '' && $title->equals( $parser->mTitle ) ) {
-			$parser->mOutput->setDisplayTitle( $text );
+		if ( !$wgRestrictDisplayTitle ||
+			( $title instanceof Title
+			&& !$title->hasFragment()
+			&& $title->equals( $parser->mTitle ) )
+		) {
+			$old = $parser->mOutput->getProperty( 'displaytitle' );
+			if ( $old === false || $arg !== 'displaytitle_noreplace' ) {
+				$parser->mOutput->setDisplayTitle( $text );
+			}
+			if ( $old !== false && $old !== $text && !$arg ) {
+				$converter = $parser->getConverterLanguage()->getConverter();
+				return '<span class="error">' .
+					wfMessage( 'duplicate-displaytitle',
+						// Message should be parsed, but these params should only be escaped.
+						$converter->markNoConversion( wfEscapeWikiText( $old ) ),
+						$converter->markNoConversion( wfEscapeWikiText( $text ) )
+					)->inContentLanguage()->text() .
+					'</span>';
+			}
 		}
 
 		return '';
@@ -414,19 +447,20 @@ class CoreParserFunctions {
 	/**
 	 * Matches the given value against the value of given magic word
 	 *
-	 * @param string $magicword magic word key
-	 * @param mixed $value value to match
-	 * @return boolean true on successful match
+	 * @param string $magicword Magic word key
+	 * @param string $value Value to match
+	 * @return bool True on successful match
 	 */
-	static private function matchAgainstMagicword( $magicword, $value ) {
-		if ( strval( $value ) === '' ) {
+	private static function matchAgainstMagicword( $magicword, $value ) {
+		$value = trim( strval( $value ) );
+		if ( $value === '' ) {
 			return false;
 		}
 		$mwObject = MagicWord::get( $magicword );
-		return $mwObject->match( $value );
+		return $mwObject->matchStartToEnd( $value );
 	}
 
-	static function formatRaw( $num, $raw ) {
+	public static function formatRaw( $num, $raw ) {
 		if ( self::matchAgainstMagicword( 'rawsuffix', $raw ) ) {
 			return $num;
 		} else {
@@ -434,35 +468,35 @@ class CoreParserFunctions {
 			return $wgContLang->formatNum( $num );
 		}
 	}
-	static function numberofpages( $parser, $raw = null ) {
+	public static function numberofpages( $parser, $raw = null ) {
 		return self::formatRaw( SiteStats::pages(), $raw );
 	}
-	static function numberofusers( $parser, $raw = null ) {
+	public static function numberofusers( $parser, $raw = null ) {
 		return self::formatRaw( SiteStats::users(), $raw );
 	}
-	static function numberofactiveusers( $parser, $raw = null ) {
+	public static function numberofactiveusers( $parser, $raw = null ) {
 		return self::formatRaw( SiteStats::activeUsers(), $raw );
 	}
-	static function numberofarticles( $parser, $raw = null ) {
+	public static function numberofarticles( $parser, $raw = null ) {
 		return self::formatRaw( SiteStats::articles(), $raw );
 	}
-	static function numberoffiles( $parser, $raw = null ) {
+	public static function numberoffiles( $parser, $raw = null ) {
 		return self::formatRaw( SiteStats::images(), $raw );
 	}
-	static function numberofadmins( $parser, $raw = null ) {
+	public static function numberofadmins( $parser, $raw = null ) {
 		return self::formatRaw( SiteStats::numberingroup( 'sysop' ), $raw );
 	}
-	static function numberofedits( $parser, $raw = null ) {
+	public static function numberofedits( $parser, $raw = null ) {
 		return self::formatRaw( SiteStats::edits(), $raw );
 	}
-	static function numberofviews( $parser, $raw = null ) {
+	public static function numberofviews( $parser, $raw = null ) {
 		global $wgDisableCounters;
 		return !$wgDisableCounters ? self::formatRaw( SiteStats::views(), $raw ) : '';
 	}
-	static function pagesinnamespace( $parser, $namespace = 0, $raw = null ) {
+	public static function pagesinnamespace( $parser, $namespace = 0, $raw = null ) {
 		return self::formatRaw( SiteStats::pagesInNs( intval( $namespace ) ), $raw );
 	}
-	static function numberingroup( $parser, $name = '', $raw = null ) {
+	public static function numberingroup( $parser, $name = '', $raw = null ) {
 		return self::formatRaw( SiteStats::numberingroup( strtolower( $name ) ), $raw );
 	}
 
@@ -471,51 +505,53 @@ class CoreParserFunctions {
 	 * corresponding magic word
 	 * Note: function name changed to "mwnamespace" rather than "namespace"
 	 * to not break PHP 5.3
+	 * @param Parser $parser
+	 * @param string $title
 	 * @return mixed|string
 	 */
-	static function mwnamespace( $parser, $title = null ) {
+	public static function mwnamespace( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return str_replace( '_', ' ', $t->getNsText() );
 	}
-	static function namespacee( $parser, $title = null ) {
+	public static function namespacee( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return wfUrlencode( $t->getNsText() );
 	}
-	static function namespacenumber( $parser, $title = null ) {
+	public static function namespacenumber( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return $t->getNamespace();
 	}
-	static function talkspace( $parser, $title = null ) {
+	public static function talkspace( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) || !$t->canTalk() ) {
 			return '';
 		}
 		return str_replace( '_', ' ', $t->getTalkNsText() );
 	}
-	static function talkspacee( $parser, $title = null ) {
+	public static function talkspacee( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) || !$t->canTalk() ) {
 			return '';
 		}
 		return wfUrlencode( $t->getTalkNsText() );
 	}
-	static function subjectspace( $parser, $title = null ) {
+	public static function subjectspace( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return str_replace( '_', ' ', $t->getSubjectNsText() );
 	}
-	static function subjectspacee( $parser, $title = null ) {
+	public static function subjectspacee( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
@@ -526,100 +562,102 @@ class CoreParserFunctions {
 	/**
 	 * Functions to get and normalize pagenames, corresponding to the magic words
 	 * of the same names
-	 * @return String
+	 * @param Parser $parser
+	 * @param string $title
+	 * @return string
 	 */
-	static function pagename( $parser, $title = null ) {
+	public static function pagename( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return wfEscapeWikiText( $t->getText() );
 	}
-	static function pagenamee( $parser, $title = null ) {
+	public static function pagenamee( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return wfEscapeWikiText( $t->getPartialURL() );
 	}
-	static function fullpagename( $parser, $title = null ) {
+	public static function fullpagename( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) || !$t->canTalk() ) {
 			return '';
 		}
 		return wfEscapeWikiText( $t->getPrefixedText() );
 	}
-	static function fullpagenamee( $parser, $title = null ) {
+	public static function fullpagenamee( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) || !$t->canTalk() ) {
 			return '';
 		}
 		return wfEscapeWikiText( $t->getPrefixedURL() );
 	}
-	static function subpagename( $parser, $title = null ) {
+	public static function subpagename( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return wfEscapeWikiText( $t->getSubpageText() );
 	}
-	static function subpagenamee( $parser, $title = null ) {
+	public static function subpagenamee( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return wfEscapeWikiText( $t->getSubpageUrlForm() );
 	}
-	static function rootpagename( $parser, $title = null ) {
+	public static function rootpagename( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return wfEscapeWikiText( $t->getRootText() );
 	}
-	static function rootpagenamee( $parser, $title = null ) {
+	public static function rootpagenamee( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return wfEscapeWikiText( wfUrlEncode( str_replace( ' ', '_', $t->getRootText() ) ) );
 	}
-	static function basepagename( $parser, $title = null ) {
+	public static function basepagename( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return wfEscapeWikiText( $t->getBaseText() );
 	}
-	static function basepagenamee( $parser, $title = null ) {
+	public static function basepagenamee( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return wfEscapeWikiText( wfUrlEncode( str_replace( ' ', '_', $t->getBaseText() ) ) );
 	}
-	static function talkpagename( $parser, $title = null ) {
+	public static function talkpagename( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) || !$t->canTalk() ) {
 			return '';
 		}
 		return wfEscapeWikiText( $t->getTalkPage()->getPrefixedText() );
 	}
-	static function talkpagenamee( $parser, $title = null ) {
+	public static function talkpagenamee( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) || !$t->canTalk() ) {
 			return '';
 		}
 		return wfEscapeWikiText( $t->getTalkPage()->getPrefixedURL() );
 	}
-	static function subjectpagename( $parser, $title = null ) {
+	public static function subjectpagename( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
 		}
 		return wfEscapeWikiText( $t->getSubjectPage()->getPrefixedText() );
 	}
-	static function subjectpagenamee( $parser, $title = null ) {
+	public static function subjectpagenamee( $parser, $title = null ) {
 		$t = Title::newFromText( $title );
 		if ( is_null( $t ) ) {
 			return '';
@@ -631,9 +669,13 @@ class CoreParserFunctions {
 	 * Return the number of pages, files or subcats in the given category,
 	 * or 0 if it's nonexistent. This is an expensive parser function and
 	 * can't be called too many times per page.
+	 * @param Parser $parser
+	 * @param string $name
+	 * @param string $arg1
+	 * @param string $arg2
 	 * @return string
 	 */
-	static function pagesincategory( $parser, $name = '', $arg1 = null, $arg2 = null ) {
+	public static function pagesincategory( $parser, $name = '', $arg1 = null, $arg2 = null ) {
 		global $wgContLang;
 		static $magicWords = null;
 		if ( is_null( $magicWords ) ) {
@@ -695,46 +737,29 @@ class CoreParserFunctions {
 	 * Return the size of the given page, or 0 if it's nonexistent.  This is an
 	 * expensive parser function and can't be called too many times per page.
 	 *
-	 * @todo FIXME: Title::getLength() documentation claims that it adds things
-	 *   to the link cache, so the local cache here should be unnecessary, but
-	 *   in fact calling getLength() repeatedly for the same $page does seem to
-	 *   run one query for each call?
-	 * @todo Document parameters
-	 *
-	 * @param $parser Parser
-	 * @param $page String Name of page to check (Default: empty string)
-	 * @param $raw String Should number be human readable with commas or just number
+	 * @param Parser $parser
+	 * @param string $page Name of page to check (Default: empty string)
+	 * @param string $raw Should number be human readable with commas or just number
 	 * @return string
 	 */
-	static function pagesize( $parser, $page = '', $raw = null ) {
-		static $cache = array();
+	public static function pagesize( $parser, $page = '', $raw = null ) {
 		$title = Title::newFromText( $page );
 
 		if ( !is_object( $title ) ) {
-			$cache[$page] = 0;
 			return self::formatRaw( 0, $raw );
 		}
 
-		# Normalize name for cache
-		$page = $title->getPrefixedText();
-
-		$length = 0;
-		if ( isset( $cache[$page] ) ) {
-			$length = $cache[$page];
-		} elseif ( $parser->incrementExpensiveFunctionCount() ) {
-			$rev = Revision::newFromTitle( $title, false, Revision::READ_NORMAL );
-			$pageID = $rev ? $rev->getPage() : 0;
-			$revID = $rev ? $rev->getId() : 0;
-			$length = $cache[$page] = $rev ? $rev->getSize() : 0;
-
-			// Register dependency in templatelinks
-			$parser->mOutput->addTemplate( $title, $pageID, $revID );
-		}
+		// fetch revision from cache/database and return the value
+		$rev = self::getCachedRevisionObject( $parser, $title );
+		$length = $rev ? $rev->getSize() : 0;
 		return self::formatRaw( $length, $raw );
 	}
 
 	/**
-	 * Returns the requested protection level for the current page
+	 * Returns the requested protection level for the current page. This
+	 * is an expensive parser function and can't be called too many times
+	 * per page, unless the protection levels for the given title have
+	 * already been retrieved
 	 *
 	 * @param Parser $parser
 	 * @param string $type
@@ -742,25 +767,28 @@ class CoreParserFunctions {
 	 *
 	 * @return string
 	 */
-	static function protectionlevel( $parser, $type = '', $title = '' ) {
+	public static function protectionlevel( $parser, $type = '', $title = '' ) {
 		$titleObject = Title::newFromText( $title );
 		if ( !( $titleObject instanceof Title ) ) {
 			$titleObject = $parser->mTitle;
 		}
-		$restrictions = $titleObject->getRestrictions( strtolower( $type ) );
-		# Title::getRestrictions returns an array, its possible it may have
-		# multiple values in the future
-		return implode( $restrictions, ',' );
+		if ( $titleObject->areRestrictionsLoaded() || $parser->incrementExpensiveFunctionCount() ) {
+			$restrictions = $titleObject->getRestrictions( strtolower( $type ) );
+			# Title::getRestrictions returns an array, its possible it may have
+			# multiple values in the future
+			return implode( $restrictions, ',' );
+		}
+		return '';
 	}
 
 	/**
 	 * Gives language names.
-	 * @param $parser Parser
-	 * @param string $code  Language code (of which to get name)
-	 * @param string $inLanguage  Language code (in which to get name)
-	 * @return String
+	 * @param Parser $parser
+	 * @param string $code Language code (of which to get name)
+	 * @param string $inLanguage Language code (in which to get name)
+	 * @return string
 	 */
-	static function language( $parser, $code = '', $inLanguage = '' ) {
+	public static function language( $parser, $code = '', $inLanguage = '' ) {
 		$code = strtolower( $code );
 		$inLanguage = strtolower( $inLanguage );
 		$lang = Language::fetchLanguageName( $code, $inLanguage );
@@ -769,9 +797,14 @@ class CoreParserFunctions {
 
 	/**
 	 * Unicode-safe str_pad with the restriction that $length is forced to be <= 500
+	 * @param Parser $parser
+	 * @param string $string
+	 * @param int $length
+	 * @param string $padding
+	 * @param int $direction
 	 * @return string
 	 */
-	static function pad( $parser, $string, $length, $padding = '0', $direction = STR_PAD_RIGHT ) {
+	public static function pad( $parser, $string, $length, $padding = '0', $direction = STR_PAD_RIGHT ) {
 		$padding = $parser->killMarkers( $padding );
 		$lengthOfPadding = mb_strlen( $padding );
 		if ( $lengthOfPadding == 0 ) {
@@ -797,25 +830,25 @@ class CoreParserFunctions {
 		}
 	}
 
-	static function padleft( $parser, $string = '', $length = 0, $padding = '0' ) {
+	public static function padleft( $parser, $string = '', $length = 0, $padding = '0' ) {
 		return self::pad( $parser, $string, $length, $padding, STR_PAD_LEFT );
 	}
 
-	static function padright( $parser, $string = '', $length = 0, $padding = '0' ) {
+	public static function padright( $parser, $string = '', $length = 0, $padding = '0' ) {
 		return self::pad( $parser, $string, $length, $padding );
 	}
 
 	/**
-	 * @param $parser Parser
-	 * @param  $text
+	 * @param Parser $parser
+	 * @param string $text
 	 * @return string
 	 */
-	static function anchorencode( $parser, $text ) {
+	public static function anchorencode( $parser, $text ) {
 		$text = $parser->killMarkers( $text );
 		return (string)substr( $parser->guessSectionNameFromWikiText( $text ), 1 );
 	}
 
-	static function special( $parser, $text ) {
+	public static function special( $parser, $text ) {
 		list( $page, $subpage ) = SpecialPageFactory::resolveAlias( $text );
 		if ( $page ) {
 			$title = SpecialPage::getTitleFor( $page, $subpage );
@@ -827,12 +860,12 @@ class CoreParserFunctions {
 		}
 	}
 
-	static function speciale( $parser, $text ) {
+	public static function speciale( $parser, $text ) {
 		return wfUrlencode( str_replace( ' ', '_', self::special( $parser, $text ) ) );
 	}
 
 	/**
-	 * @param $parser Parser
+	 * @param Parser $parser
 	 * @param string $text The sortkey to use
 	 * @param string $uarg Either "noreplace" or "noerror" (in en)
 	 *   both suppress errors, and noreplace does nothing if
@@ -869,8 +902,9 @@ class CoreParserFunctions {
 		}
 	}
 
-	// Usage {{filepath|300}}, {{filepath|nowiki}}, {{filepath|nowiki|300}} or {{filepath|300|nowiki}}
-	// or {{filepath|300px}}, {{filepath|200x300px}}, {{filepath|nowiki|200x300px}}, {{filepath|200x300px|nowiki}}
+	// Usage {{filepath|300}}, {{filepath|nowiki}}, {{filepath|nowiki|300}}
+	// or {{filepath|300|nowiki}} or {{filepath|300px}}, {{filepath|200x300px}},
+	// {{filepath|nowiki|200x300px}}, {{filepath|200x300px|nowiki}}.
 	public static function filepath( $parser, $name = '', $argA = '', $argB = '' ) {
 		$file = wfFindFile( $name );
 
@@ -907,6 +941,9 @@ class CoreParserFunctions {
 
 	/**
 	 * Parser function to extension tag adaptor
+	 * @param Parser $parser
+	 * @param PPFrame $frame
+	 * @param array $args
 	 * @return string
 	 */
 	public static function tagObj( $parser, $frame, $args ) {
@@ -949,4 +986,271 @@ class CoreParserFunctions {
 		);
 		return $parser->extensionSubstitution( $params, $frame );
 	}
+
+	/**
+	 * Fetched the current revision of the given title and return this.
+	 * Will increment the expensive function count and
+	 * add a template link to get the value refreshed on changes.
+	 * For a given title, which is equal to the current parser title,
+	 * the revision object from the parser is used, when that is the current one
+	 *
+	 * @param Parser $parser
+	 * @param Title $title
+	 * @return Revision
+	 * @since 1.23
+	 */
+	private static function getCachedRevisionObject( $parser, $title = null ) {
+		static $cache = null;
+		if ( $cache == null ) {
+			$cache = new MapCacheLRU( 50 );
+		}
+
+		if ( is_null( $title ) ) {
+			return null;
+		}
+
+		// Use the revision from the parser itself, when param is the current page
+		// and the revision is the current one
+		if ( $title->equals( $parser->getTitle() ) ) {
+			$parserRev = $parser->getRevisionObject();
+			if ( $parserRev && $parserRev->isCurrent() ) {
+				// force reparse after edit with vary-revision flag
+				$parser->getOutput()->setFlag( 'vary-revision' );
+				wfDebug( __METHOD__ . ": use current revision from parser, setting vary-revision...\n" );
+				return $parserRev;
+			}
+		}
+
+		// Normalize name for cache
+		$page = $title->getPrefixedDBkey();
+
+		if ( $cache->has( $page ) ) { // cache contains null values
+			return $cache->get( $page );
+		}
+		if ( $parser->incrementExpensiveFunctionCount() ) {
+			$rev = Revision::newFromTitle( $title, false, Revision::READ_NORMAL );
+			$pageID = $rev ? $rev->getPage() : 0;
+			$revID = $rev ? $rev->getId() : 0;
+			$cache->set( $page, $rev ); // maybe null
+
+			// Register dependency in templatelinks
+			$parser->getOutput()->addTemplate( $title, $pageID, $revID );
+
+			return $rev;
+		}
+		$cache->set( $page, null );
+		return null;
+	}
+
+	/**
+	 * Get the pageid of a specified page
+	 * @param Parser $parser
+	 * @param string $title Title to get the pageid from
+	 * @return int|null|string
+	 * @since 1.23
+	 */
+	public static function pageid( $parser, $title = null ) {
+		$t = Title::newFromText( $title );
+		if ( is_null( $t ) ) {
+			return '';
+		}
+		// Use title from parser to have correct pageid after edit
+		if ( $t->equals( $parser->getTitle() ) ) {
+			$t = $parser->getTitle();
+			return $t->getArticleID();
+		}
+
+		// These can't have ids
+		if ( !$t->canExist() || $t->isExternal() ) {
+			return 0;
+		}
+
+		// Check the link cache, maybe something already looked it up.
+		$linkCache = LinkCache::singleton();
+		$pdbk = $t->getPrefixedDBkey();
+		$id = $linkCache->getGoodLinkID( $pdbk );
+		if ( $id != 0 ) {
+			$parser->mOutput->addLink( $t, $id );
+			return $id;
+		}
+		if ( $linkCache->isBadLink( $pdbk ) ) {
+			$parser->mOutput->addLink( $t, 0 );
+			return $id;
+		}
+
+		// We need to load it from the DB, so mark expensive
+		if ( $parser->incrementExpensiveFunctionCount() ) {
+			$id = $t->getArticleID();
+			$parser->mOutput->addLink( $t, $id );
+			return $id;
+		}
+		return null;
+	}
+
+	/**
+	 * Get the id from the last revision of a specified page.
+	 * @param Parser $parser
+	 * @param string $title Title to get the id from
+	 * @return int|null|string
+	 * @since 1.23
+	 */
+	public static function revisionid( $parser, $title = null ) {
+		$t = Title::newFromText( $title );
+		if ( is_null( $t ) ) {
+			return '';
+		}
+		// fetch revision from cache/database and return the value
+		$rev = self::getCachedRevisionObject( $parser, $t );
+		return $rev ? $rev->getId() : '';
+	}
+
+	/**
+	 * Get the day from the last revision of a specified page.
+	 * @param Parser $parser
+	 * @param string $title Title to get the day from
+	 * @return string
+	 * @since 1.23
+	 */
+	public static function revisionday( $parser, $title = null ) {
+		$t = Title::newFromText( $title );
+		if ( is_null( $t ) ) {
+			return '';
+		}
+		// fetch revision from cache/database and return the value
+		$rev = self::getCachedRevisionObject( $parser, $t );
+		return $rev ? MWTimestamp::getLocalInstance( $rev->getTimestamp() )->format( 'j' ) : '';
+	}
+
+	/**
+	 * Get the day with leading zeros from the last revision of a specified page.
+	 * @param Parser $parser
+	 * @param string $title Title to get the day from
+	 * @return string
+	 * @since 1.23
+	 */
+	public static function revisionday2( $parser, $title = null ) {
+		$t = Title::newFromText( $title );
+		if ( is_null( $t ) ) {
+			return '';
+		}
+		// fetch revision from cache/database and return the value
+		$rev = self::getCachedRevisionObject( $parser, $t );
+		return $rev ? MWTimestamp::getLocalInstance( $rev->getTimestamp() )->format( 'd' ) : '';
+	}
+
+	/**
+	 * Get the month with leading zeros from the last revision of a specified page.
+	 * @param Parser $parser
+	 * @param string $title Title to get the month from
+	 * @return string
+	 * @since 1.23
+	 */
+	public static function revisionmonth( $parser, $title = null ) {
+		$t = Title::newFromText( $title );
+		if ( is_null( $t ) ) {
+			return '';
+		}
+		// fetch revision from cache/database and return the value
+		$rev = self::getCachedRevisionObject( $parser, $t );
+		return $rev ? MWTimestamp::getLocalInstance( $rev->getTimestamp() )->format( 'm' ) : '';
+	}
+
+	/**
+	 * Get the month from the last revision of a specified page.
+	 * @param Parser $parser
+	 * @param string $title Title to get the month from
+	 * @return string
+	 * @since 1.23
+	 */
+	public static function revisionmonth1( $parser, $title = null ) {
+		$t = Title::newFromText( $title );
+		if ( is_null( $t ) ) {
+			return '';
+		}
+		// fetch revision from cache/database and return the value
+		$rev = self::getCachedRevisionObject( $parser, $t );
+		return $rev ? MWTimestamp::getLocalInstance( $rev->getTimestamp() )->format( 'n' ) : '';
+	}
+
+	/**
+	 * Get the year from the last revision of a specified page.
+	 * @param Parser $parser
+	 * @param string $title Title to get the year from
+	 * @return string
+	 * @since 1.23
+	 */
+	public static function revisionyear( $parser, $title = null ) {
+		$t = Title::newFromText( $title );
+		if ( is_null( $t ) ) {
+			return '';
+		}
+		// fetch revision from cache/database and return the value
+		$rev = self::getCachedRevisionObject( $parser, $t );
+		return $rev ? MWTimestamp::getLocalInstance( $rev->getTimestamp() )->format( 'Y' ) : '';
+	}
+
+	/**
+	 * Get the timestamp from the last revision of a specified page.
+	 * @param Parser $parser
+	 * @param string $title Title to get the timestamp from
+	 * @return string
+	 * @since 1.23
+	 */
+	public static function revisiontimestamp( $parser, $title = null ) {
+		$t = Title::newFromText( $title );
+		if ( is_null( $t ) ) {
+			return '';
+		}
+		// fetch revision from cache/database and return the value
+		$rev = self::getCachedRevisionObject( $parser, $t );
+		return $rev ? MWTimestamp::getLocalInstance( $rev->getTimestamp() )->format( 'YmdHis' ) : '';
+	}
+
+	/**
+	 * Get the user from the last revision of a specified page.
+	 * @param Parser $parser
+	 * @param string $title Title to get the user from
+	 * @return string
+	 * @since 1.23
+	 */
+	public static function revisionuser( $parser, $title = null ) {
+		$t = Title::newFromText( $title );
+		if ( is_null( $t ) ) {
+			return '';
+		}
+		// fetch revision from cache/database and return the value
+		$rev = self::getCachedRevisionObject( $parser, $t );
+		return $rev ? $rev->getUserText() : '';
+	}
+
+	/**
+	 * Returns the sources of any cascading protection acting on a specified page.
+	 * Pages will not return their own title unless they transclude themselves.
+	 * This is an expensive parser function and can't be called too many times per page,
+	 * unless cascading protection sources for the page have already been loaded.
+	 *
+	 * @param Parser $parser
+	 * @param string $title
+	 *
+	 * @return string
+	 * @since 1.23
+	 */
+	public static function cascadingsources( $parser, $title = '' ) {
+		$titleObject = Title::newFromText( $title );
+		if ( !( $titleObject instanceof Title ) ) {
+			$titleObject = $parser->mTitle;
+		}
+		if ( $titleObject->areCascadeProtectionSourcesLoaded()
+			|| $parser->incrementExpensiveFunctionCount()
+		) {
+			$names = array();
+			$sources = $titleObject->getCascadeProtectionSources();
+			foreach ( $sources[0] as $sourceTitle ) {
+				$names[] = $sourceTitle->getPrefixedText();
+			}
+			return implode( $names, '|' );
+		}
+		return '';
+	}
+
 }