Move WikiMap class from CentralAuth to core, since it's used in 2 extensions at least now, and doesn't depend on CentralAuth

1 files changed, 112 insertions, 0 deletions

diff --git a/includes/WikiMap.php b/includes/WikiMap.php
new file mode 100644
index 000000000000..db9d17da31bb
--- /dev/null
+++ b/includes/WikiMap.php
@@ -0,0 +1,112 @@
+<?php
+
+/**
+ * Helper tools for dealing with other locally-hosted wikis
+ */
+
+class WikiMap {
+	static function getWiki( $wikiID ) {
+		global $wgConf, $IP;
+		static $initialiseSettingsDone = false;
+
+		// This is a damn dirty hack
+		if ( !$initialiseSettingsDone ) {
+			$initialiseSettingsDone = true;
+			if( file_exists( "$IP/InitialiseSettings.php" ) ) {
+				require_once "$IP/InitialiseSettings.php";
+			}
+		}
+
+		list( $major, $minor ) = $wgConf->siteFromDB( $wikiID );
+		if( isset( $major ) ) {
+			$server = $wgConf->get( 'wgServer', $wikiID, $major,
+				array( 'lang' => $minor, 'site' => $major ) );
+			$path = $wgConf->get( 'wgArticlePath', $wikiID, $major,
+				array( 'lang' => $minor, 'site' => $major ) );
+			return new WikiReference( $major, $minor, $server, $path );
+		} else {
+			return null;
+		}
+	}
+	
+	// Convenience functions from GlobalBlocking
+	static function getWikiName( $wiki_id ) {
+		// We can give more info than just the wiki id!
+		$wiki = WikiMap::getWiki( $wiki_id );
+			
+		if ($wiki) {
+			return $wiki->getDisplayName();
+		}
+		return $wiki_id;
+	}
+	
+	static function foreignUserLink( $wiki_id, $user ) {
+		return self::makeForeignLink( $wiki_id, "User:$user" );
+	}
+	
+	static function makeForeignLink( $wiki_id, $page, $text=null ) {
+		global $wgUser;
+		$sk = $wgUser->getSkin();
+		
+		if (!$text)
+			$text=$page;
+		
+		return $sk->makeExternalLink( self::getForeignURL( $wiki_id, $page ) , $text );
+	}
+	
+	static function getForeignURL( $wiki_id, $page ) {
+		$wiki = WikiMap::getWiki( $wiki_id );
+		
+		if ($wiki)
+			return $wiki->getUrl( $page );
+			
+		return false;
+	}
+}
+
+class WikiReference {
+	private $mMinor; ///< 'en', 'meta', 'mediawiki', etc
+	private $mMajor; ///< 'wiki', 'wiktionary', etc
+	private $mServer; ///< server override, 'www.mediawiki.org'
+	private $mPath;   ///< path override, '/wiki/$1'
+
+	function __construct( $major, $minor, $server, $path ) {
+		$this->mMajor = $major;
+		$this->mMinor = $minor;
+		$this->mServer = $server;
+		$this->mPath = $path;
+	}
+
+	function getHostname() {
+		$prefixes = array( 'http://', 'https://' );
+		foreach ( $prefixes as $prefix ) {
+			if ( substr( $this->mServer, 0, strlen( $prefix ) ) ) {
+				return substr( $this->mServer, strlen( $prefix ) );
+			}
+		}
+		throw new MWException( "Invalid hostname for wiki {$this->mMinor}.{$this->mMajor}" );
+	}
+
+	/**
+	 * pretty it up
+	 */
+	function getDisplayName() {
+		$url = $this->getUrl( '' );
+		$url = preg_replace( '!^https?://!', '', $url );
+		$url = preg_replace( '!/index\.php(\?title=|/)$!', '/', $url );
+		$url = preg_replace( '!/wiki/$!', '/', $url );
+		$url = preg_replace( '!/$!', '', $url );
+		return $url;
+	}
+
+	private function getLocalUrl( $page ) {
+		// FIXME: this may be generalized...
+		return str_replace( '$1', wfUrlEncode( str_replace( ' ', '_', $page ) ), $this->mPath );
+	}
+
+	function getUrl( $page ) {
+		return
+			$this->mServer . 
+			$this->getLocalUrl( $page );
+	}
+}