Pre-validate protocol

Resolves #32

Author: glinton

api/api.go

@@ -60,6 +60,7 @@ var (
 	NoServerError  = errors.New("No Server Found")
 	NoServiceError = errors.New("No Service Found")
 	BadListenAddr  = errors.New("Port Already In Use")
+	ErrBadProto    = errors.New("Unsupported Protocol")
 )
 
 type (

api/service.go

@@ -75,6 +75,11 @@ func checkPort(svc core.Service) error {
 			return BadListenAddr
 		}
 	}
+
+	if svc.Type != "udp" && svc.Type != "tcp" {
+		return ErrBadProto
+	}
+
 	return nil
 }
 

balance/nginx.go

@@ -241,6 +241,7 @@ func (n *Nginx) DeleteServer(svcId, srvId string) error {
 
 // regenerloadConfig regenerates the nginx config and performs a live reload on
 // nginx to re-read in the config.
+// todo: use http proxying if http detected
 func (n *Nginx) regenerloadConfig() error {
 	nginxConfig := fmt.Sprintf(`%s