added better id handling

scheme.go

@@ -13,14 +13,25 @@ import (
 const (
 	PVEScheme    = "pve"
 	PVESchemeURL = PVEScheme + "://"
+
+	MinID     = 100
+	InvalidID = 0
 )
 
 var (
 	ErrInvalidPVEURL = errors.New("invalid pve url scheme")
 	ErrNoID          = errors.New("missing id in url")
+	ErrInvalidID     = errors.New("invalid id")
 	ErrParsingID     = errors.New("error parsing id in url")
 )
 
+func ValidateID(id int) error {
+	if id < MinID {
+		return ErrInvalidID
+	}
+	return nil
+}
+
 func ParseURL(s string) (pool, node string, id int, err error) {
 	u, err := url.Parse(s)
 	if err != nil {
@@ -43,7 +54,7 @@ func ParseURL(s string) (pool, node string, id int, err error) {
 	if err != nil {
 		err = ErrParsingID
 	}
-	return u.Host, a[1], id, nil
+	return u.Host, a[1], id, ValidateID(id)
 }
 
 func ServerRefFromURL(s string) (ref *ServerRef, err error) {