From c258db6ab334a692a9d9a4699efd71b5aef0b155 Mon Sep 17 00:00:00 2001
From: Denis Kirillov <denis@nspcc.ru>
Date: Thu, 27 Oct 2022 16:32:55 +0300
Subject: [PATCH] [#218] Unify system attribute format for GET/HEAD

Signed-off-by: Denis Kirillov <denis@nspcc.ru>
---
 downloader/head.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/downloader/head.go b/downloader/head.go
index eafed21..3267228 100644
--- a/downloader/head.go
+++ b/downloader/head.go
@@ -4,6 +4,7 @@ import (
 	"io"
 	"net/http"
 	"strconv"
+	"strings"
 	"time"
 
 	"github.com/nspcc-dev/neofs-http-gw/response"
@@ -55,6 +56,9 @@ func (r request) headObject(clnt *pool.Pool, objectAddress oid.Address) {
 		if !isValidToken(key) || !isValidValue(val) {
 			continue
 		}
+		if strings.HasPrefix(key, utils.SystemAttributePrefix) {
+			key = systemBackwardTranslator(key)
+		}
 		r.Response.Header.Set(utils.UserAttributeHeaderPrefix+key, val)
 		switch key {
 		case object.AttributeTimestamp: