split listening settings from inbound proxies and apply context

common/net/destination.go

@@ -48,6 +48,10 @@ func (v Destination) String() string {
 	return v.Network.URLPrefix() + ":" + v.NetAddr()
 }
 
+func (v Destination) IsValid() bool {
+	return v.Network != Network_Unknown
+}
+
 func (v *Endpoint) AsDestination() Destination {
 	return Destination{
 		Network: v.Network,

common/protocol/context.go

@@ -0,0 +1,23 @@
+package protocol
+
+import (
+	"context"
+)
+
+type key int
+
+const (
+	userKey key = iota
+)
+
+func ContextWithUser(ctx context.Context, user *User) context.Context {
+	return context.WithValue(ctx, userKey, user)
+}
+
+func UserFromContext(ctx context.Context) *User {
+	v := ctx.Value(userKey)
+	if v == nil {
+		return nil
+	}
+	return v.(*User)
+}

common/type.go

@@ -25,7 +25,7 @@ func CreateObject(ctx context.Context, config interface{}) (interface{}, error)
 	configType := reflect.TypeOf(config)
 	creator, found := typeCreatorRegistry[configType]
 	if !found {
-		return nil, errors.New("Common: " + configType.Name() + " is not registered.")
+		return nil, errors.New("Common: " + configType.String() + " is not registered.")
 	}
 	return creator(ctx, config)
 }