MediaWiki 1.7.1 wiederhergestellt

1 files changed, 575 insertions, 0 deletions

diff --git a/includes/SpecialPage.php b/includes/SpecialPage.php
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+++ b/includes/SpecialPage.php
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+<?php
+/**
+ * SpecialPage: handling special pages and lists thereof.
+ *
+ * To add a special page in an extension, add to $wgSpecialPages either 
+ * an object instance or an array containing the name and constructor 
+ * parameters. The latter is preferred for performance reasons. 
+ *
+ * The object instantiated must be either an instance of SpecialPage or a 
+ * sub-class thereof. It must have an execute() method, which sends the HTML 
+ * for the special page to $wgOut. The parent class has an execute() method 
+ * which distributes the call to the historical global functions. Additionally, 
+ * execute() also checks if the user has the necessary access privileges 
+ * and bails out if not.
+ *
+ * To add a core special page, use the similar static list in 
+ * SpecialPage::$mList. To remove a core static special page at runtime, use
+ * a SpecialPage_initList hook.
+ *
+ * @package MediaWiki
+ * @subpackage SpecialPage
+ */
+
+/**
+ * @access private
+ */
+
+/**
+ * Parent special page class, also static functions for handling the special
+ * page list
+ * @package MediaWiki
+ */
+class SpecialPage
+{
+	/**#@+
+	 * @access private
+	 */
+	/**
+	 * The name of the class, used in the URL.
+	 * Also used for the default <h1> heading, @see getDescription()
+	 */
+	var $mName;
+	/**
+	 * Minimum user level required to access this page, or "" for anyone.
+	 * Also used to categorise the pages in Special:Specialpages
+	 */
+	var $mRestriction;
+	/**
+	 * Listed in Special:Specialpages?
+	 */
+	var $mListed;
+	/**
+	 * Function name called by the default execute()
+	 */
+	var $mFunction;
+	/**
+	 * File which needs to be included before the function above can be called
+	 */
+	var $mFile;
+	/**
+	 * Whether or not this special page is being included from an article
+	 */
+	var $mIncluding;
+	/**
+	 * Whether the special page can be included in an article
+	 */
+	var $mIncludable;
+
+	static public $mList = array(
+		'DoubleRedirects'	=> array( 'SpecialPage', 'DoubleRedirects' ),
+		'BrokenRedirects'	=> array( 'SpecialPage', 'BrokenRedirects' ),
+		'Disambiguations'	=> array( 'SpecialPage', 'Disambiguations' ),
+
+		'Userlogin'         => array( 'SpecialPage', 'Userlogin' ),
+		'Userlogout'        => array( 'UnlistedSpecialPage', 'Userlogout' ),
+		'Preferences'       => array( 'SpecialPage', 'Preferences' ),
+		'Watchlist'         => array( 'SpecialPage', 'Watchlist' ),
+
+		'Recentchanges'     => array( 'IncludableSpecialPage', 'Recentchanges' ),
+		'Upload'            => array( 'SpecialPage', 'Upload' ),
+		'Imagelist'         => array( 'SpecialPage', 'Imagelist' ),
+		'Newimages'         => array( 'IncludableSpecialPage', 'Newimages' ),
+		'Listusers'         => array( 'SpecialPage', 'Listusers' ),
+		'Statistics'        => array( 'SpecialPage', 'Statistics' ),
+		'Random'            => array( 'SpecialPage', 'Randompage' ),
+		'Lonelypages'       => array( 'SpecialPage', 'Lonelypages' ),
+		'Uncategorizedpages'=> array( 'SpecialPage', 'Uncategorizedpages' ),
+		'Uncategorizedcategories'=> array( 'SpecialPage', 'Uncategorizedcategories' ),
+		'Uncategorizedimages' => array( 'SpecialPage', 'Uncategorizedimages' ),
+		'Unusedcategories'	=> array( 'SpecialPage', 'Unusedcategories' ),
+		'Unusedimages'      => array( 'SpecialPage', 'Unusedimages' ),
+		'Wantedpages'	    => array( 'IncludableSpecialPage', 'Wantedpages' ),
+		'Wantedcategories'  => array( 'SpecialPage', 'Wantedcategories' ),
+		'Mostlinked'	    => array( 'SpecialPage', 'Mostlinked' ),
+		'Mostlinkedcategories' => array( 'SpecialPage', 'Mostlinkedcategories' ),
+		'Mostcategories'    => array( 'SpecialPage', 'Mostcategories' ),
+		'Mostimages'        => array( 'SpecialPage', 'Mostimages' ),
+		'Mostrevisions'     => array( 'SpecialPage', 'Mostrevisions' ),
+		'Shortpages'	    => array( 'SpecialPage', 'Shortpages' ),
+		'Longpages'		    => array( 'SpecialPage', 'Longpages' ),
+		'Newpages'		    => array( 'IncludableSpecialPage', 'Newpages' ),
+		'Ancientpages'	    => array( 'SpecialPage', 'Ancientpages' ),
+		'Deadendpages'      => array( 'SpecialPage', 'Deadendpages' ),
+		'Allpages'		    => array( 'IncludableSpecialPage', 'Allpages' ),
+		'Prefixindex'	    => array( 'IncludableSpecialPage', 'Prefixindex' ) ,
+		'Ipblocklist'	    => array( 'SpecialPage', 'Ipblocklist' ),
+		'Specialpages'      => array( 'UnlistedSpecialPage', 'Specialpages' ),
+		'Contributions'     => array( 'UnlistedSpecialPage', 'Contributions' ),
+		'Emailuser'		    => array( 'UnlistedSpecialPage', 'Emailuser' ),
+		'Whatlinkshere'     => array( 'UnlistedSpecialPage', 'Whatlinkshere' ),
+		'Recentchangeslinked' => array( 'UnlistedSpecialPage', 'Recentchangeslinked' ),
+		'Movepage'		    => array( 'UnlistedSpecialPage', 'Movepage' ),
+		'Blockme'           => array( 'UnlistedSpecialPage', 'Blockme' ),
+		'Booksources'	    => array( 'SpecialPage', 'Booksources' ),
+		'Categories'	    => array( 'SpecialPage', 'Categories' ),
+		'Export'		    => array( 'SpecialPage', 'Export' ),
+		'Version'		    => array( 'SpecialPage', 'Version' ),
+		'Allmessages'	    => array( 'SpecialPage', 'Allmessages' ),
+		'Log'               => array( 'SpecialPage', 'Log' ),
+		'Blockip'		    => array( 'SpecialPage', 'Blockip', 'block' ),
+		'Undelete'		    => array( 'SpecialPage', 'Undelete', 'deletedhistory' ),
+		"Import"		    => array( 'SpecialPage', "Import", 'import' ),
+		'Lockdb'		    => array( 'SpecialPage', 'Lockdb', 'siteadmin' ),
+		'Unlockdb'		    => array( 'SpecialPage', 'Unlockdb', 'siteadmin' ),
+		'Userrights'	    => array( 'SpecialPage', 'Userrights', 'userrights' ),
+		'MIMEsearch'        => array( 'SpecialPage', 'MIMEsearch' ),
+		'Unwatchedpages'    => array( 'SpecialPage', 'Unwatchedpages', 'unwatchedpages' ),
+		'Listredirects'     => array( 'SpecialPage', 'Listredirects' ),
+		'Revisiondelete'    => array( 'SpecialPage', 'Revisiondelete', 'deleterevision' ),
+		'Unusedtemplates'   => array( 'SpecialPage', 'Unusedtemplates' ),
+		'Randomredirect'    => array( 'SpecialPage', 'Randomredirect' ),
+	);
+
+	static public $mListInitialised = false;
+
+	/**#@-*/
+
+	/**
+	 * Initialise the special page list
+	 * This must be called before accessing SpecialPage::$mList
+	 */
+	static function initList() {
+		global $wgSpecialPages;
+		global $wgDisableCounters, $wgDisableInternalSearch, $wgEmailAuthentication;
+
+		if ( self::$mListInitialised ) {
+			return;
+		}
+		wfProfileIn( __METHOD__ );
+		
+		if( !$wgDisableCounters ) {
+			self::$mList['Popularpages'] = array( 'SpecialPage', 'Popularpages' );
+		}
+
+		if( !$wgDisableInternalSearch ) {
+			self::$mList['Search'] = array( 'SpecialPage', 'Search' );
+		}
+
+		if( $wgEmailAuthentication ) {
+			self::$mList['Confirmemail'] = array( 'UnlistedSpecialPage', 'Confirmemail' );
+		}
+
+		# Add extension special pages
+		self::$mList = array_merge( self::$mList, $wgSpecialPages );
+
+		# Better to set this now, to avoid infinite recursion in carelessly written hooks
+		self::$mListInitialised = true;
+
+		# Run hooks
+		# This hook can be used to remove undesired built-in special pages
+		wfRunHooks( 'SpecialPage_initList', array( &self::$mList ) );
+		wfProfileOut( __METHOD__ );
+	}
+
+	/**
+	 * Add a page to the list of valid special pages. This used to be the preferred 
+	 * method for adding special pages in extensions. It's now suggested that you add 
+	 * an associative record to $wgSpecialPages. This avoids autoloading SpecialPage.
+	 *
+	 * @param mixed $page Must either be an array specifying a class name and 
+	 *                    constructor parameters, or an object. The object,
+	 *                    when constructed, must have an execute() method which
+	 *                    sends HTML to $wgOut.
+	 * @static
+	 */
+	static function addPage( &$page ) {
+		if ( !self::$mListInitialised ) {
+			self::initList();
+		}
+		self::$mList[$page->mName] = $page;
+	}
+
+	/**
+	 * Remove a special page from the list
+	 * Formerly used to disable expensive or dangerous special pages. The 
+	 * preferred method is now to add a SpecialPage_initList hook.
+	 * 
+	 * @static
+	 */
+	static function removePage( $name ) {
+		if ( !self::$mListInitialised ) {
+			self::initList();
+		}
+		unset( self::$mList[$name] );
+	}
+
+	/**
+	 * Find the object with a given name and return it (or NULL)
+	 * @static
+	 * @param string $name
+	 */
+	static function getPage( $name ) {
+		if ( !self::$mListInitialised ) {
+			self::initList();
+		}
+		if ( array_key_exists( $name, self::$mList ) ) {
+			$rec = self::$mList[$name];
+			if ( is_string( $rec ) ) {
+				$className = $rec;
+				self::$mList[$name] = new $className;
+			} elseif ( is_array( $rec ) ) {
+				$className = array_shift( $rec );
+				self::$mList[$name] = wfCreateObject( $className, $rec );
+			}
+			return self::$mList[$name];
+		} else {
+			return NULL;
+		}
+	}
+
+
+	/**
+	 * @static
+	 * @param string $name
+	 * @return mixed Title object if the redirect exists, otherwise NULL
+	 */
+	static function getRedirect( $name ) {
+		global $wgUser;
+
+		$redirects = array(
+			'Mypage' => Title::makeTitle( NS_USER, $wgUser->getName() ),
+			'Mytalk' => Title::makeTitle( NS_USER_TALK, $wgUser->getName() ),
+			'Mycontributions' => Title::makeTitle( NS_SPECIAL, 'Contributions/' . $wgUser->getName() ),
+			'Listadmins' => Title::makeTitle( NS_SPECIAL, 'Listusers/sysop' ), # @bug 2832
+			'Logs' => Title::makeTitle( NS_SPECIAL, 'Log' ),
+			'Randompage' => Title::makeTitle( NS_SPECIAL, 'Random' ),
+			'Userlist' => Title::makeTitle( NS_SPECIAL, 'Listusers' )
+		);
+		wfRunHooks( 'SpecialPageGetRedirect', array( &$redirects ) );
+
+		return isset( $redirects[$name] ) ? $redirects[$name] : null;
+	}
+
+	/**
+	 * Return part of the request string for a special redirect page
+	 * This allows passing, e.g. action=history to Special:Mypage, etc.
+	 *
+	 * @param $name Name of the redirect page
+	 * @return string
+	 */
+	function getRedirectParams( $name ) {
+		global $wgRequest;
+		
+		$args = array();
+		switch( $name ) {
+			case 'Mypage':
+			case 'Mytalk':
+			case 'Randompage':
+				$args = array( 'action' );
+		}
+		
+		$params = array();
+		foreach( $args as $arg ) {
+			if( $val = $wgRequest->getVal( $arg, false ) )
+				$params[] = $arg . '=' . $val;
+		}
+		
+		return count( $params ) ? implode( '&', $params ) : false;
+	}	
+
+	/**
+	 * Return categorised listable special pages
+	 * Returns a 2d array where the first index is the restriction name
+	 * @static
+	 */
+	static function getPages() {
+		if ( !self::$mListInitialised ) {
+			self::initList();
+		}
+		$pages = array(
+		  '' => array(),
+		  'sysop' => array(),
+		  'developer' => array()
+		);
+
+		foreach ( self::$mList as $name => $rec ) {
+			$page = self::getPage( $name );
+			if ( $page->isListed() ) {
+				$pages[$page->getRestriction()][$page->getName()] = $page;
+			}
+		}
+		return $pages;
+	}
+
+	/**
+	 * Execute a special page path.
+	 * The path	may contain parameters, e.g. Special:Name/Params
+	 * Extracts the special page name and call the execute method, passing the parameters
+	 *
+	 * Returns a title object if the page is redirected, false if there was no such special
+	 * page, and true if it was successful.
+	 *
+	 * @param $title          a title object
+	 * @param $including      output is being captured for use in {{special:whatever}}
+	 */
+	function executePath( &$title, $including = false ) {
+		global $wgOut, $wgTitle;
+		$fname = 'SpecialPage::executePath';
+		wfProfileIn( $fname );
+
+		$bits = split( "/", $title->getDBkey(), 2 );
+		$name = $bits[0];
+		if( !isset( $bits[1] ) ) { // bug 2087
+			$par = NULL;
+		} else {
+			$par = $bits[1];
+		}
+
+		$page = SpecialPage::getPage( $name );
+		if ( is_null( $page ) ) {
+			if ( $including ) {
+				wfProfileOut( $fname );
+				return false;
+			} else {
+				$redir = SpecialPage::getRedirect( $name );
+				if ( isset( $redir ) ) {
+					if( $par )
+						$redir = Title::makeTitle( $redir->getNamespace(), $redir->getText() . '/' . $par );
+					$params = SpecialPage::getRedirectParams( $name );
+					if( $params ) {
+						$url = $redir->getFullUrl( $params );
+					} else {
+						$url = $redir->getFullUrl();
+					}
+					$wgOut->redirect( $url );
+					$retVal = $redir;
+					$wgOut->redirect( $url );
+					$retVal = $redir;
+				} else {
+					$wgOut->setArticleRelated( false );
+					$wgOut->setRobotpolicy( 'noindex,nofollow' );
+					$wgOut->setStatusCode( 404 );
+					$wgOut->showErrorPage( 'nosuchspecialpage', 'nospecialpagetext' );
+					$retVal = false;
+				}
+			}
+		} else {
+			if ( $including && !$page->includable() ) {
+				wfProfileOut( $fname );
+				return false;
+			} elseif ( !$including ) {
+				if($par !== NULL) {
+					$wgTitle = Title::makeTitle( NS_SPECIAL, $name );
+				} else {
+					$wgTitle = $title;
+				}
+			}
+			$page->including( $including );
+
+			$profName = 'Special:' . $page->getName();
+			wfProfileIn( $profName );
+			$page->execute( $par );
+			wfProfileOut( $profName );
+			$retVal = true;
+		}
+		wfProfileOut( $fname );
+		return $retVal;
+	}
+
+	/**
+	 * Just like executePath() except it returns the HTML instead of outputting it
+	 * Returns false if there was no such special page, or a title object if it was
+	 * a redirect.
+	 * @static
+	 */
+	static function capturePath( &$title ) {
+		global $wgOut, $wgTitle;
+
+		$oldTitle = $wgTitle;
+		$oldOut = $wgOut;
+		$wgOut = new OutputPage;
+
+		$ret = SpecialPage::executePath( $title, true );
+		if ( $ret === true ) {
+			$ret = $wgOut->getHTML();
+		}
+		$wgTitle = $oldTitle;
+		$wgOut = $oldOut;
+		return $ret;
+	}
+
+	/**
+	 * Default constructor for special pages
+	 * Derivative classes should call this from their constructor
+	 *     Note that if the user does not have the required level, an error message will
+	 *     be displayed by the default execute() method, without the global function ever
+	 *     being called.
+	 *
+	 *     If you override execute(), you can recover the default behaviour with userCanExecute()
+	 *     and displayRestrictionError()
+	 *
+	 * @param string $name Name of the special page, as seen in links and URLs
+	 * @param string $restriction Minimum user level required, e.g. "sysop" or "developer".
+	 * @param boolean $listed Whether the page is listed in Special:Specialpages
+	 * @param string $function Function called by execute(). By default it is constructed from $name
+	 * @param string $file File which is included by execute(). It is also constructed from $name by default
+	 */
+	function SpecialPage( $name = '', $restriction = '', $listed = true, $function = false, $file = 'default', $includable = false ) {
+		$this->mName = $name;
+		$this->mRestriction = $restriction;
+		$this->mListed = $listed;
+		$this->mIncludable = $includable;
+		if ( $function == false ) {
+			$this->mFunction = 'wfSpecial'.$name;
+		} else {
+			$this->mFunction = $function;
+		}
+		if ( $file === 'default' ) {
+			$this->mFile = "Special{$name}.php";
+		} else {
+			$this->mFile = $file;
+		}
+	}
+
+	/**#@+
+	  * Accessor
+	  *
+	  * @deprecated
+	  */
+	function getName() { return $this->mName; }
+	function getRestriction() { return $this->mRestriction; }
+	function getFile() { return $this->mFile; }
+	function isListed() { return $this->mListed; }
+	/**#@-*/
+
+	/**#@+
+	  * Accessor and mutator
+	  */
+	function name( $x = NULL ) { return wfSetVar( $this->mName, $x ); }
+	function restrictions( $x = NULL) { return wfSetVar( $this->mRestrictions, $x ); }
+	function listed( $x = NULL) { return wfSetVar( $this->mListed, $x ); }
+	function func( $x = NULL) { return wfSetVar( $this->mFunction, $x ); }
+	function file( $x = NULL) { return wfSetVar( $this->mFile, $x ); }
+	function includable( $x = NULL ) { return wfSetVar( $this->mIncludable, $x ); }
+	function including( $x = NULL ) { return wfSetVar( $this->mIncluding, $x ); }
+	/**#@-*/
+
+	/**
+	 * Checks if the given user (identified by an object) can execute this
+	 * special page (as defined by $mRestriction)
+	 */
+	function userCanExecute( &$user ) {
+		if ( $this->mRestriction == "" ) {
+			return true;
+		} else {
+			if ( in_array( $this->mRestriction, $user->getRights() ) ) {
+				return true;
+			} else {
+				return false;
+			}
+		}
+	}
+
+	/**
+	 * Output an error message telling the user what access level they have to have
+	 */
+	function displayRestrictionError() {
+		global $wgOut;
+		$wgOut->permissionRequired( $this->mRestriction );
+	}
+
+	/**
+	 * Sets headers - this should be called from the execute() method of all derived classes!
+	 */
+	function setHeaders() {
+		global $wgOut;
+		$wgOut->setArticleRelated( false );
+		$wgOut->setRobotPolicy( "noindex,nofollow" );
+		$wgOut->setPageTitle( $this->getDescription() );
+	}
+
+	/**
+	 * Default execute method
+	 * Checks user permissions, calls the function given in mFunction
+	 */
+	function execute( $par ) {
+		global $wgUser;
+
+		$this->setHeaders();
+
+		if ( $this->userCanExecute( $wgUser ) ) {
+			$func = $this->mFunction;
+			// only load file if the function does not exist
+			if(!function_exists($func) and $this->mFile) {
+				require_once( $this->mFile );
+			}
+			if ( wfRunHooks( 'SpecialPageExecuteBeforeHeader', array( &$this, &$par, &$func ) ) )
+				$this->outputHeader();
+			if ( ! wfRunHooks( 'SpecialPageExecuteBeforePage', array( &$this, &$par, &$func ) ) )
+				return;
+			$func( $par, $this );
+			if ( ! wfRunHooks( 'SpecialPageExecuteAfterPage', array( &$this, &$par, &$func ) ) )
+				return;
+		} else {
+			$this->displayRestrictionError();
+		}
+	}
+
+	function outputHeader() {
+		global $wgOut, $wgContLang;
+
+		$msg = $wgContLang->lc( $this->name() ) . '-summary';
+		$out = wfMsg( $msg );
+		if ( ! wfEmptyMsg( $msg, $out ) and  $out !== '' and ! $this->including() )
+			$wgOut->addWikiText( $out );
+
+	}
+
+	# Returns the name that goes in the <h1> in the special page itself, and also the name that
+	# will be listed in Special:Specialpages
+	#
+	# Derived classes can override this, but usually it is easier to keep the default behaviour.
+	# Messages can be added at run-time, see MessageCache.php
+	function getDescription() {
+		return wfMsg( strtolower( $this->mName ) );
+	}
+
+	/**
+	 * Get a self-referential title object
+	 */
+	function getTitle() {
+		return Title::makeTitle( NS_SPECIAL, $this->mName );
+	}
+
+	/**
+	 * Set whether this page is listed in Special:Specialpages, at run-time
+	 */
+	function setListed( $listed ) {
+		return wfSetVar( $this->mListed, $listed );
+	}
+
+}
+
+/**
+ * Shortcut to construct a special page which is unlisted by default
+ * @package MediaWiki
+ */
+class UnlistedSpecialPage extends SpecialPage
+{
+	function UnlistedSpecialPage( $name, $restriction = '', $function = false, $file = 'default' ) {
+		SpecialPage::SpecialPage( $name, $restriction, false, $function, $file );
+	}
+}
+
+/**
+ * Shortcut to construct an includable special  page
+ * @package MediaWiki
+ */
+class IncludableSpecialPage extends SpecialPage
+{
+	function IncludableSpecialPage( $name, $restriction = '', $listed = true, $function = false, $file = 'default' ) {
+		SpecialPage::SpecialPage( $name, $restriction, $listed, $function, $file, true );
+	}
+}
+?>