# HG changeset patch
# User Florian Zeitz <florob@babelmonkeys.de>
# Date 1349459063 -7200
# Node ID a0987c0e4e1d7f367c6c6e37259f0d4fbb9375b8
# Parent  cdc67f4efde21865553249c5e2953ea697838fa7
mod_websocket: Check whether the xmpp sub-protocol was requested

diff -r cdc67f4efde2 -r a0987c0e4e1d mod_websocket/mod_websocket.lua
--- a/mod_websocket/mod_websocket.lua	Fri Oct 05 19:34:53 2012 +0200
+++ b/mod_websocket/mod_websocket.lua	Fri Oct 05 19:44:23 2012 +0200
@@ -446,7 +446,14 @@
 			</body></html>]];
 	end
 
-	-- TODO: Handle requested subprotocols
+	local wants_xmpp = false;
+	(request.headers.sec_websocket_protocol or ""):gsub("([^,]*),?", function (proto)
+		if proto == "xmpp" then wants_xmpp = true; end
+	end);
+
+	if not wants_xmpp then
+		return 501;
+	end
 
 	response.conn:setlistener(listener);
 	response.status = "101 Switching Protocols";