[#604] Add support of MFADelete argument and x-amz-mfa header

Signed-off-by: Pavel Pogodaev <p.pogodaev@yadro.com>

api/handler/util.go

@@ -168,3 +168,17 @@ func parseRange(s string) (*layer.RangeParams, error) {
 		End:   values[1],
 	}, nil
 }
+
+func nameFromArn(arn string) string {
+	pts := strings.Split(arn, "/")
+	return pts[len(pts)-1]
+}
+
+func (h *handler) getMFAHeader(r *http.Request) (string, string, error) {
+	parts := strings.Split(r.Header.Get(api.AmzMFA), " ")
+	if len(parts) != 2 {
+		return "", "", fmt.Errorf("%w: invalid mfa header", apierr.GetAPIError(apierr.ErrMFAAuthNeeded))
+	}
+
+	return parts[0], parts[1], nil
+}