close

P2P/IO.hs

@@ -68,6 +68,35 @@ closeConnection conn = do
 	hClose (connIhdl conn)
 	hClose (connOhdl conn)
 
+-- Serves the protocol on a unix socket.
+--
+-- The callback is run to serve a connection, and is responsible for
+-- closing the Handle when done.
+--
+-- Note that while the callback is running, other connections won't be
+-- processes, so longterm work should be run in a separate thread by
+-- the callback.
+serveUnixSocket :: FilePath -> (Handle -> IO ()) -> IO ()
+serveUnixSocket unixsocket serveconn = do
+	nukeFile unixsocket
+	soc <- S.socket S.AF_UNIX S.Stream S.defaultProtocol
+	S.bind soc (S.SockAddrUnix unixsocket)
+	-- Allow everyone to read and write to the socket,
+	-- so a daemon like tor, that is probably running as a different
+	-- de sock $ addModes
+	-- user, can access it.
+	-- 
+        -- Connections have to authenticate to do anything,
+        -- so it's fine that other local users can connect to the
+        -- socket.
+	modifyFileMode unixsocket $ addModes
+		[groupReadMode, groupWriteMode, otherReadMode, otherWriteMode]
+	S.listen soc 2
+	forever $ do
+		(conn, _) <- S.accept soc
+		h <- setupHandle conn
+		serveconn conn
+
 setupHandle :: Socket -> IO Handle
 setupHandle s = do
 	h <- socketToHandle s ReadWriteMode