From 4f3d2064226a0976429d22af262ad8730a2e7866 Mon Sep 17 00:00:00 2001
From: Alex Vanin <alexey@nspcc.ru>
Date: Fri, 3 Jun 2022 17:33:47 +0300
Subject: [PATCH] [#478] Don't fetch epoch at object upload

Creation epoch was used for versioning. With
tree service, versioning is done on the NeoFS
side in the tree.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
---
 api/data/info.go    | 17 ++++++++---------
 api/layer/object.go | 26 ++++++++------------------
 api/layer/util.go   | 17 ++++++++---------
 3 files changed, 24 insertions(+), 36 deletions(-)

diff --git a/api/data/info.go b/api/data/info.go
index e005c997..e4ed76c2 100644
--- a/api/data/info.go
+++ b/api/data/info.go
@@ -33,15 +33,14 @@ type (
 		IsDir          bool
 		IsDeleteMarker bool
 
-		Bucket        string
-		Name          string
-		Size          int64
-		ContentType   string
-		Created       time.Time
-		CreationEpoch uint64
-		HashSum       string
-		Owner         user.ID
-		Headers       map[string]string
+		Bucket      string
+		Name        string
+		Size        int64
+		ContentType string
+		Created     time.Time
+		HashSum     string
+		Owner       user.ID
+		Headers     map[string]string
 	}
 
 	// BucketSettings stores settings such as versioning.
diff --git a/api/layer/object.go b/api/layer/object.go
index 9aab0903..711e137b 100644
--- a/api/layer/object.go
+++ b/api/layer/object.go
@@ -17,7 +17,6 @@ import (
 	"github.com/nspcc-dev/neofs-s3-gw/api/cache"
 	"github.com/nspcc-dev/neofs-s3-gw/api/data"
 	apiErrors "github.com/nspcc-dev/neofs-s3-gw/api/errors"
-	"github.com/nspcc-dev/neofs-s3-gw/internal/misc"
 	"github.com/nspcc-dev/neofs-sdk-go/client"
 	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
 	"github.com/nspcc-dev/neofs-sdk-go/object"
@@ -183,14 +182,6 @@ func (n *layer) PutObject(ctx context.Context, p *PutObjectParams) (*data.Object
 		return nil, fmt.Errorf("couldn't add new verion to tree service: %w", err)
 	}
 
-	currentEpoch, _, err := n.neoFS.TimeToEpoch(ctx, time.Now().Add(time.Minute))
-	if err != nil {
-		n.log.Warn("couldn't get creation epoch",
-			zap.String("bucket", p.BktInfo.Name),
-			zap.String("object", misc.SanitizeString(p.Object)),
-			zap.Error(err))
-	}
-
 	if p.Lock != nil && (p.Lock.Retention != nil || p.Lock.LegalHold != nil) {
 		objVersion := &ObjectVersion{
 			BktInfo:    p.BktInfo,
@@ -209,15 +200,14 @@ func (n *layer) PutObject(ctx context.Context, p *PutObjectParams) (*data.Object
 		ID:  *id,
 		CID: p.BktInfo.CID,
 
-		Owner:         own,
-		Bucket:        p.BktInfo.Name,
-		Name:          p.Object,
-		Size:          p.Size,
-		Created:       time.Now(),
-		CreationEpoch: currentEpoch,
-		Headers:       p.Header,
-		ContentType:   p.Header[api.ContentType],
-		HashSum:       hex.EncodeToString(hash),
+		Owner:       own,
+		Bucket:      p.BktInfo.Name,
+		Name:        p.Object,
+		Size:        p.Size,
+		Created:     time.Now(),
+		Headers:     p.Header,
+		ContentType: p.Header[api.ContentType],
+		HashSum:     hex.EncodeToString(hash),
 	}
 
 	if err = n.objCache.PutObject(objInfo); err != nil {
diff --git a/api/layer/util.go b/api/layer/util.go
index 80e13a53..1df46368 100644
--- a/api/layer/util.go
+++ b/api/layer/util.go
@@ -120,15 +120,14 @@ func objectInfoFromMeta(bkt *data.BucketInfo, meta *object.Object, prefix, delim
 		CID:   bkt.CID,
 		IsDir: isDir,
 
-		Bucket:        bkt.Name,
-		Name:          filename,
-		Created:       creation,
-		CreationEpoch: meta.CreationEpoch(),
-		ContentType:   mimeType,
-		Headers:       userHeaders,
-		Owner:         *meta.OwnerID(),
-		Size:          size,
-		HashSum:       hex.EncodeToString(payloadChecksum.Value()),
+		Bucket:      bkt.Name,
+		Name:        filename,
+		Created:     creation,
+		ContentType: mimeType,
+		Headers:     userHeaders,
+		Owner:       *meta.OwnerID(),
+		Size:        size,
+		HashSum:     hex.EncodeToString(payloadChecksum.Value()),
 	}
 }