mod_component: Fire 'component-disconnected' event on host, to maintain consistency - sessions with no host never authenticated. Fixes #737

plugins/mod_component.lua

@@ -314,7 +314,9 @@ function listener.ondisconnect(conn, err)
 	local session = sessions[conn];
 	if session then
 		(session.log or log)("info", "component disconnected: %s (%s)", tostring(session.host), tostring(err));
-		module:fire_event("component-disconnected", { session = session, reason = err });
+		if session.host then
+			module:context(session.host):fire_event("component-disconnected", { session = session, reason = err });
+		end
 		if session.on_destroy then session:on_destroy(err); end
 		sessions[conn] = nil;
 		for k in pairs(session) do