[#465] object: Set xHeader __SYSTEM__NETMAP_EPOCH

Affects requests `GET`, `RANGE`, `HEAD`.

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

pkg/services/object/get/types.go

@@ -138,12 +138,12 @@ func (s *multiaddressRemoteStorage) Range(ctx context.Context, address oid.Addre
 
 	prm.SetClient(s.client)
 	prm.SetTTL(requestParams.TTL)
+	prm.SetXHeaders(requestParams.XHeaders)
 	prm.SetNetmapEpoch(requestParams.Epoch)
 	prm.SetAddress(address)
 	prm.SetPrivateKey(requestParams.PrivateKey)
 	prm.SetSessionToken(requestParams.SessionToken)
 	prm.SetBearerToken(requestParams.BearerToken)
-	prm.SetXHeaders(requestParams.XHeaders)
 	prm.SetRange(rng)
 	if requestParams.IsRaw {
 		prm.SetRawFlag()
@@ -179,12 +179,12 @@ func (s *multiaddressRemoteStorage) Head(ctx context.Context, address oid.Addres
 
 	prm.SetClient(s.client)
 	prm.SetTTL(requestParams.TTL)
+	prm.SetXHeaders(requestParams.XHeaders)
 	prm.SetNetmapEpoch(requestParams.Epoch)
 	prm.SetAddress(address)
 	prm.SetPrivateKey(requestParams.PrivateKey)
 	prm.SetSessionToken(requestParams.SessionToken)
 	prm.SetBearerToken(requestParams.BearerToken)
-	prm.SetXHeaders(requestParams.XHeaders)
 
 	if requestParams.IsRaw {
 		prm.SetRawFlag()
@@ -203,12 +203,12 @@ func (s *multiaddressRemoteStorage) Get(ctx context.Context, address oid.Address
 
 	prm.SetClient(s.client)
 	prm.SetTTL(requestParams.TTL)
+	prm.SetXHeaders(requestParams.XHeaders)
 	prm.SetNetmapEpoch(requestParams.Epoch)
 	prm.SetAddress(address)
 	prm.SetPrivateKey(requestParams.PrivateKey)
 	prm.SetSessionToken(requestParams.SessionToken)
 	prm.SetBearerToken(requestParams.BearerToken)
-	prm.SetXHeaders(requestParams.XHeaders)
 
 	if requestParams.IsRaw {
 		prm.SetRawFlag()

pkg/services/object/internal/client/client.go

@@ -7,7 +7,9 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"strconv"
 
+	apiSession "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
 	coreclient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/client"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
@@ -80,8 +82,16 @@ type readPrmCommon struct {
 // SetNetmapEpoch sets the epoch number to be used to locate the objectSDK.
 //
 // By default current epoch on the server will be used.
-func (x *readPrmCommon) SetNetmapEpoch(_ uint64) {
+func (x *readPrmCommon) SetNetmapEpoch(epoch uint64) {
-	// FIXME(@fyrchik): https://git.frostfs.info/TrueCloudLab/frostfs-node/issues/465
+	e := strconv.FormatUint(epoch, 10)
+	for i := 0; i < len(x.xHeaders); i = i + 2 {
+		if x.xHeaders[i] == apiSession.XHeaderNetmapEpoch {
+			x.xHeaders[i+1] = strconv.FormatUint(epoch, 10)
+			return
+		}
+	}
+
+	x.xHeaders = append(x.xHeaders, apiSession.XHeaderNetmapEpoch, e)
 }
 
 // GetObjectPrm groups parameters of GetObject operation.