pkg/services/object/get/assemble.go

@@ -10,7 +10,7 @@ import (
 	"go.uber.org/zap"
 )
 
-func (exec *execCtx) assemble() {
+func (exec *execCtx) assemble(ctx context.Context) {
 	if !exec.canAssemble() {
 		exec.log.Debug("can not assemble the object")
 		return
@@ -49,7 +49,7 @@ func (exec *execCtx) assemble() {
 		zap.Uint64("range_length", exec.ctxRange().GetLength()),
 	)
 
-	obj, err := assembler.Assemble(exec.context(), exec.prm.objWriter)
+	obj, err := assembler.Assemble(ctx, exec.prm.objWriter)
 	if err != nil {
 		exec.log.Warn("failed to assemble splitted object",
 			zap.Error(err),
@@ -107,8 +107,7 @@ func (exec *execCtx) HeadObject(ctx context.Context, id oid.ID) (*objectSDK.Obje
 
 	w := NewSimpleObjectWriter()
 	prm.SetHeaderWriter(w)
-	//nolint: contextcheck
+	err := exec.svc.Head(ctx, prm)
-	err := exec.svc.Head(exec.context(), prm)
 
 	if err != nil {
 		return nil, err
@@ -128,8 +127,7 @@ func (exec *execCtx) GetObject(ctx context.Context, id oid.ID, rng *objectSDK.Ra
 	p.addr.SetContainer(exec.containerID())
 	p.addr.SetObject(id)
 
-	//nolint: contextcheck
+	statusError := exec.svc.get(ctx, p.commonPrm, withPayloadRange(rng))
-	statusError := exec.svc.get(exec.context(), p.commonPrm, withPayloadRange(rng))
 
 	if statusError.err != nil {
 		return nil, statusError.err

pkg/services/object/get/container.go

@@ -7,7 +7,7 @@ import (
 	"go.uber.org/zap"
 )
 
-func (exec *execCtx) executeOnContainer() {
+func (exec *execCtx) executeOnContainer(ctx context.Context) {
 	if exec.isLocal() {
 		exec.log.Debug("return result directly")
 		return
@@ -26,7 +26,7 @@ func (exec *execCtx) executeOnContainer() {
 	}
 
 	for {
-		if exec.processCurrentEpoch() {
+		if exec.processCurrentEpoch(ctx) {
 			break
 		}
 
@@ -42,7 +42,7 @@ func (exec *execCtx) executeOnContainer() {
 	}
 }
 
-func (exec *execCtx) processCurrentEpoch() bool {
+func (exec *execCtx) processCurrentEpoch(ctx context.Context) bool {
 	exec.log.Debug("process epoch",
 		zap.Uint64("number", exec.curProcEpoch),
 	)
@@ -52,7 +52,7 @@ func (exec *execCtx) processCurrentEpoch() bool {
 		return true
 	}
 
-	ctx, cancel := context.WithCancel(exec.context())
+	ctx, cancel := context.WithCancel(ctx)
 	defer cancel()
 
 	exec.status = statusUndefined

pkg/services/object/get/exec.go

@@ -19,12 +19,9 @@ type statusError struct {
 	err    error
 }
 
-// nolint: containedctx
 type execCtx struct {
 	svc *Service
 
-	ctx context.Context
-
 	prm RangePrm
 
 	statusError
@@ -80,10 +77,6 @@ func (exec *execCtx) setLogger(l *logger.Logger) {
 	)}
 }
 
-func (exec execCtx) context() context.Context {
-	return exec.ctx
-}
-
 func (exec execCtx) isLocal() bool {
 	return exec.prm.common.LocalOnly()
 }
@@ -217,13 +210,13 @@ func mergeSplitInfo(dst, src *objectSDK.SplitInfo) {
 	}
 }
 
-func (exec *execCtx) writeCollectedHeader() bool {
+func (exec *execCtx) writeCollectedHeader(ctx context.Context) bool {
 	if exec.ctxRange() != nil {
 		return true
 	}
 
 	err := exec.prm.objWriter.WriteHeader(
-		exec.context(),
+		ctx,
 		exec.collectedObject.CutPayload(),
 	)
 
@@ -243,12 +236,12 @@ func (exec *execCtx) writeCollectedHeader() bool {
 	return exec.status == statusOK
 }
 
-func (exec *execCtx) writeObjectPayload(obj *objectSDK.Object) bool {
+func (exec *execCtx) writeObjectPayload(ctx context.Context, obj *objectSDK.Object) bool {
 	if exec.headOnly() {
 		return true
 	}
 
-	err := exec.prm.objWriter.WriteChunk(exec.context(), obj.Payload())
+	err := exec.prm.objWriter.WriteChunk(ctx, obj.Payload())
 
 	switch {
 	default:
@@ -266,9 +259,9 @@ func (exec *execCtx) writeObjectPayload(obj *objectSDK.Object) bool {
 	return err == nil
 }
 
-func (exec *execCtx) writeCollectedObject() {
+func (exec *execCtx) writeCollectedObject(ctx context.Context) {
-	if ok := exec.writeCollectedHeader(); ok {
+	if ok := exec.writeCollectedHeader(ctx); ok {
-		exec.writeObjectPayload(exec.collectedObject)
+		exec.writeObjectPayload(ctx, exec.collectedObject)
 	}
 }
 

pkg/services/object/get/get.go

@@ -65,7 +65,6 @@ func (s *Service) Head(ctx context.Context, prm HeadPrm) error {
 func (s *Service) get(ctx context.Context, prm commonPrm, opts ...execOption) statusError {
 	exec := &execCtx{
 		svc: s,
-		ctx: ctx,
 		prm: RangePrm{
 			commonPrm: prm,
 		},
@@ -78,22 +77,21 @@ func (s *Service) get(ctx context.Context, prm commonPrm, opts ...execOption) st
 
 	exec.setLogger(s.log)
 
-	//nolint: contextcheck
+	exec.execute(ctx)
-	exec.execute()
 
 	return exec.statusError
 }
 
-func (exec *execCtx) execute() {
+func (exec *execCtx) execute(ctx context.Context) {
 	exec.log.Debug("serving request...")
 
 	// perform local operation
-	exec.executeLocal()
+	exec.executeLocal(ctx)
 
-	exec.analyzeStatus(true)
+	exec.analyzeStatus(ctx, true)
 }
 
-func (exec *execCtx) analyzeStatus(execCnr bool) {
+func (exec *execCtx) analyzeStatus(ctx context.Context, execCnr bool) {
 	// analyze local result
 	switch exec.status {
 	case statusOK:
@@ -102,7 +100,7 @@ func (exec *execCtx) analyzeStatus(execCnr bool) {
 		exec.log.Debug("requested object was marked as removed")
 	case statusVIRTUAL:
 		exec.log.Debug("requested object is virtual")
-		exec.assemble()
+		exec.assemble(ctx)
 	case statusOutOfRange:
 		exec.log.Debug("requested range is out of object bounds")
 	default:
@@ -111,8 +109,8 @@ func (exec *execCtx) analyzeStatus(execCnr bool) {
 		)
 
 		if execCnr {
-			exec.executeOnContainer()
+			exec.executeOnContainer(ctx)
-			exec.analyzeStatus(false)
+			exec.analyzeStatus(ctx, false)
 		}
 	}
 }

pkg/services/object/get/get_test.go

@@ -117,7 +117,7 @@ func newTestClient() *testClient {
 	}
 }
 
-func (c *testClient) getObject(exec *execCtx, _ client.NodeInfo) (*objectSDK.Object, error) {
+func (c *testClient) getObject(ctx context.Context, exec *execCtx, _ client.NodeInfo) (*objectSDK.Object, error) {
 	v, ok := c.results[exec.address().EncodeToString()]
 	if !ok {
 		var errNotFound apistatus.ObjectNotFound

pkg/services/object/get/local.go

@@ -1,6 +1,7 @@
 package getsvc
 
 import (
+	"context"
 	"errors"
 
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
@@ -8,7 +9,7 @@ import (
 	"go.uber.org/zap"
 )
 
-func (exec *execCtx) executeLocal() {
+func (exec *execCtx) executeLocal(ctx context.Context) {
 	var err error
 
 	exec.collectedObject, err = exec.svc.localStorage.get(exec)
@@ -28,7 +29,7 @@ func (exec *execCtx) executeLocal() {
 	case err == nil:
 		exec.status = statusOK
 		exec.err = nil
-		exec.writeCollectedObject()
+		exec.writeCollectedObject(ctx)
 	case errors.As(err, &errRemoved):
 		exec.status = statusINHUMED
 		exec.err = errRemoved

pkg/services/object/get/prm.go

@@ -59,7 +59,7 @@ type RangeHashPrm struct {
 	salt []byte
 }
 
-type RequestForwarder func(coreclient.NodeInfo, coreclient.MultiAddressClient) (*object.Object, error)
+type RequestForwarder func(context.Context, coreclient.NodeInfo, coreclient.MultiAddressClient) (*object.Object, error)
 
 // HeadPrm groups parameters of Head service call.
 type HeadPrm struct {

pkg/services/object/get/remote.go

@@ -18,7 +18,7 @@ func (exec *execCtx) processNode(ctx context.Context, info client.NodeInfo) bool
 		return true
 	}
 
-	obj, err := client.getObject(exec, info)
+	obj, err := client.getObject(ctx, exec, info)
 
 	var errSplitInfo *objectSDK.SplitInfoError
 	var errRemoved *apistatus.ObjectAlreadyRemoved
@@ -43,8 +43,7 @@ func (exec *execCtx) processNode(ctx context.Context, info client.NodeInfo) bool
 		// has already been streamed to the requesting party
 		if obj != nil {
 			exec.collectedObject = obj
-			//nolint: contextcheck
+			exec.writeCollectedObject(ctx)
-			exec.writeCollectedObject()
 		}
 	case errors.As(err, &errRemoved):
 		exec.status = statusINHUMED

pkg/services/object/get/service.go

@@ -1,6 +1,8 @@
 package getsvc
 
 import (
+	"context"
+
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/client"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/netmap"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/engine"
@@ -22,7 +24,7 @@ type Service struct {
 type Option func(*cfg)
 
 type getClient interface {
-	getObject(*execCtx, client.NodeInfo) (*object.Object, error)
+	getObject(context.Context, *execCtx, client.NodeInfo) (*object.Object, error)
 }
 
 type cfg struct {

pkg/services/object/get/util.go

@@ -87,10 +87,9 @@ func (c *clientCacheWrapper) get(info coreclient.NodeInfo) (getClient, error) {
 	}, nil
 }
 
-// nolint: funlen
+func (c *clientWrapper) getObject(ctx context.Context, exec *execCtx, info coreclient.NodeInfo) (*object.Object, error) {
-func (c *clientWrapper) getObject(exec *execCtx, info coreclient.NodeInfo) (*object.Object, error) {
 	if exec.isForwardingEnabled() {
-		return exec.prm.forwarder(info, c.client)
+		return exec.prm.forwarder(ctx, info, c.client)
 	}
 
 	key, err := exec.key()
@@ -99,9 +98,66 @@ func (c *clientWrapper) getObject(exec *execCtx, info coreclient.NodeInfo) (*obj
 	}
 
 	if exec.headOnly() {
+		return c.getHeadOnly(ctx, exec, key)
+	}
+	// we don't specify payload writer because we accumulate
+	// the object locally (even huge).
+	if rng := exec.ctxRange(); rng != nil {
+		// Current spec allows other storage node to deny access,
+		// fallback to GET here.
+		return c.getRange(ctx, exec, key, rng)
+	}
+
+	return c.get(ctx, exec, key)
+}
+
+func (c *clientWrapper) getRange(ctx context.Context, exec *execCtx, key *ecdsa.PrivateKey, rng *object.Range) (*object.Object, error) {
+	var prm internalclient.PayloadRangePrm
+
+	prm.SetContext(ctx)
+	prm.SetClient(c.client)
+	prm.SetTTL(exec.prm.common.TTL())
+	prm.SetNetmapEpoch(exec.curProcEpoch)
+	prm.SetAddress(exec.address())
+	prm.SetPrivateKey(key)
+	prm.SetSessionToken(exec.prm.common.SessionToken())
+	prm.SetBearerToken(exec.prm.common.BearerToken())
+	prm.SetXHeaders(exec.prm.common.XHeaders())
+	prm.SetRange(rng)
+
+	if exec.isRaw() {
+		prm.SetRawFlag()
+	}
+
+	res, err := internalclient.PayloadRange(prm)
+	if err != nil {
+		var errAccessDenied *apistatus.ObjectAccessDenied
+		if errors.As(err, &errAccessDenied) {
+			obj, err := c.get(ctx, exec, key)
+			if err != nil {
+				return nil, err
+			}
+
+			payload := obj.Payload()
+			from := rng.GetOffset()
+			to := from + rng.GetLength()
+
+			if pLen := uint64(len(payload)); to < from || pLen < from || pLen < to {
+				return nil, new(apistatus.ObjectOutOfRange)
+			}
+
+			return payloadOnlyObject(payload[from:to]), nil
+		}
+		return nil, err
+	}
+
+	return payloadOnlyObject(res.PayloadRange()), nil
+}
+
+func (c *clientWrapper) getHeadOnly(ctx context.Context, exec *execCtx, key *ecdsa.PrivateKey) (*object.Object, error) {
 	var prm internalclient.HeadObjectPrm
 
-		prm.SetContext(exec.context())
+	prm.SetContext(ctx)
 	prm.SetClient(c.client)
 	prm.SetTTL(exec.prm.common.TTL())
 	prm.SetNetmapEpoch(exec.curProcEpoch)
@@ -121,61 +177,12 @@ func (c *clientWrapper) getObject(exec *execCtx, info coreclient.NodeInfo) (*obj
 	}
 
 	return res.Header(), nil
-	}
-	// we don't specify payload writer because we accumulate
-	// the object locally (even huge).
-	if rng := exec.ctxRange(); rng != nil {
-		var prm internalclient.PayloadRangePrm
-
-		prm.SetContext(exec.context())
-		prm.SetClient(c.client)
-		prm.SetTTL(exec.prm.common.TTL())
-		prm.SetNetmapEpoch(exec.curProcEpoch)
-		prm.SetAddress(exec.address())
-		prm.SetPrivateKey(key)
-		prm.SetSessionToken(exec.prm.common.SessionToken())
-		prm.SetBearerToken(exec.prm.common.BearerToken())
-		prm.SetXHeaders(exec.prm.common.XHeaders())
-		prm.SetRange(rng)
-
-		if exec.isRaw() {
-			prm.SetRawFlag()
-		}
-
-		res, err := internalclient.PayloadRange(prm)
-		if err != nil {
-			var errAccessDenied *apistatus.ObjectAccessDenied
-			if errors.As(err, &errAccessDenied) {
-				// Current spec allows other storage node to deny access,
-				// fallback to GET here.
-				obj, err := c.get(exec, key)
-				if err != nil {
-					return nil, err
-				}
-
-				payload := obj.Payload()
-				from := rng.GetOffset()
-				to := from + rng.GetLength()
-
-				if pLen := uint64(len(payload)); to < from || pLen < from || pLen < to {
-					return nil, new(apistatus.ObjectOutOfRange)
-				}
-
-				return payloadOnlyObject(payload[from:to]), nil
-			}
-			return nil, err
-		}
-
-		return payloadOnlyObject(res.PayloadRange()), nil
-	}
-
-	return c.get(exec, key)
 }
 
-func (c *clientWrapper) get(exec *execCtx, key *ecdsa.PrivateKey) (*object.Object, error) {
+func (c *clientWrapper) get(ctx context.Context, exec *execCtx, key *ecdsa.PrivateKey) (*object.Object, error) {
 	var prm internalclient.GetObjectPrm
 
-	prm.SetContext(exec.context())
+	prm.SetContext(ctx)
 	prm.SetClient(c.client)
 	prm.SetTTL(exec.prm.common.TTL())
 	prm.SetNetmapEpoch(exec.curProcEpoch)

pkg/services/object/get/v2/get_forwarder.go

@@ -0,0 +1,168 @@
+package getsvc
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"errors"
+	"fmt"
+	"io"
+	"sync"
+
+	objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
+	rpcclient "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/client"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/network"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/internal"
+	internalclient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/internal/client"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
+)
+
+type getRequestForwarder struct {
+	OnceResign        *sync.Once
+	OnceHeaderSending *sync.Once
+	GlobalProgress    int
+	Key               *ecdsa.PrivateKey
+	Request           *objectV2.GetRequest
+	Stream            *streamObjectWriter
+}
+
+func (f *getRequestForwarder) forwardRequestToNode(ctx context.Context, addr network.Address, c client.MultiAddressClient, pubkey []byte) (*object.Object, error) {
+	var err error
+
+	// once compose and resign forwarding request
+	f.OnceResign.Do(func() {
+		// compose meta header of the local server
+		metaHdr := new(session.RequestMetaHeader)
+		metaHdr.SetTTL(f.Request.GetMetaHeader().GetTTL() - 1)
+		// TODO: #1165 think how to set the other fields
+		metaHdr.SetOrigin(f.Request.GetMetaHeader())
+		writeCurrentVersion(metaHdr)
+		f.Request.SetMetaHeader(metaHdr)
+		err = signature.SignServiceMessage(f.Key, f.Request)
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	getStream, err := f.openStream(ctx, addr, c)
+	if err != nil {
+		return nil, err
+	}
+	return nil, f.readStream(ctx, c, getStream, pubkey)
+}
+
+func (f *getRequestForwarder) verifyResponse(resp *objectV2.GetResponse, pubkey []byte) error {
+	// verify response key
+	if err := internal.VerifyResponseKeyV2(pubkey, resp); err != nil {
+		return err
+	}
+
+	// verify response structure
+	if err := signature.VerifyServiceMessage(resp); err != nil {
+		return fmt.Errorf("response verification failed: %w", err)
+	}
+
+	if err := checkStatus(resp.GetMetaHeader().GetStatus()); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (f *getRequestForwarder) writeHeader(ctx context.Context, v *objectV2.GetObjectPartInit) error {
+	obj := new(objectV2.Object)
+
+	obj.SetObjectID(v.GetObjectID())
+	obj.SetSignature(v.GetSignature())
+	obj.SetHeader(v.GetHeader())
+
+	var err error
+	f.OnceHeaderSending.Do(func() {
+		err = f.Stream.WriteHeader(ctx, object.NewFromV2(obj))
+	})
+	if err != nil {
+		return fmt.Errorf("could not write object header in Get forwarder: %w", err)
+	}
+	return nil
+}
+
+func (f *getRequestForwarder) openStream(ctx context.Context, addr network.Address, c client.MultiAddressClient) (*rpc.GetResponseReader, error) {
+	var getStream *rpc.GetResponseReader
+	err := c.RawForAddress(addr, func(cli *rpcclient.Client) error {
+		var e error
+		getStream, e = rpc.GetObject(cli, f.Request, rpcclient.WithContext(ctx))
+		return e
+	})
+	if err != nil {
+		return nil, fmt.Errorf("stream opening failed: %w", err)
+	}
+	return getStream, nil
+}
+
+func (f *getRequestForwarder) readStream(ctx context.Context, c client.MultiAddressClient, getStream *rpc.GetResponseReader, pubkey []byte) error {
+	var (
+		headWas       bool
+		resp          = new(objectV2.GetResponse)
+		localProgress int
+	)
+
+	for {
+		// receive message from server stream
+		err := getStream.Read(resp)
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				if !headWas {
+					return io.ErrUnexpectedEOF
+				}
+
+				break
+			}
+
+			internalclient.ReportError(c, err)
+			return fmt.Errorf("reading the response failed: %w", err)
+		}
+
+		if err := f.verifyResponse(resp, pubkey); err != nil {
+			return err
+		}
+
+		switch v := resp.GetBody().GetObjectPart().(type) {
+		default:
+			return fmt.Errorf("unexpected object part %T", v)
+		case *objectV2.GetObjectPartInit:
+			if headWas {
+				return errWrongMessageSeq
+			}
+			headWas = true
+			if err := f.writeHeader(ctx, v); err != nil {
+				return err
+			}
+		case *objectV2.GetObjectPartChunk:
+			if !headWas {
+				return errWrongMessageSeq
+			}
+
+			origChunk := v.GetChunk()
+
+			chunk := chunkToSend(f.GlobalProgress, localProgress, origChunk)
+			if len(chunk) == 0 {
+				localProgress += len(origChunk)
+				continue
+			}
+
+			if err = f.Stream.WriteChunk(ctx, chunk); err != nil {
+				return fmt.Errorf("could not write object chunk in Get forwarder: %w", err)
+			}
+
+			localProgress += len(origChunk)
+			f.GlobalProgress += len(chunk)
+		case *objectV2.SplitInfo:
+			si := object.NewSplitInfoFromV2(v)
+			return object.NewSplitInfoError(si)
+		}
+	}
+	return nil
+}

pkg/services/object/get/v2/get_range_forwarder.go

@@ -0,0 +1,134 @@
+package getsvc
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"errors"
+	"fmt"
+	"io"
+	"sync"
+
+	objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
+	rpcclient "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/client"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/network"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/internal"
+	internalclient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/internal/client"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
+)
+
+type getRangeRequestForwarder struct {
+	OnceResign     *sync.Once
+	GlobalProgress int
+	Key            *ecdsa.PrivateKey
+	Request        *objectV2.GetRangeRequest
+	Stream         *streamObjectRangeWriter
+}
+
+func (f *getRangeRequestForwarder) forwardRequestToNode(ctx context.Context, addr network.Address, c client.MultiAddressClient, pubkey []byte) (*object.Object, error) {
+	var err error
+
+	// once compose and resign forwarding request
+	f.OnceResign.Do(func() {
+		// compose meta header of the local server
+		metaHdr := new(session.RequestMetaHeader)
+		metaHdr.SetTTL(f.Request.GetMetaHeader().GetTTL() - 1)
+		// TODO: #1165 think how to set the other fields
+		metaHdr.SetOrigin(f.Request.GetMetaHeader())
+		writeCurrentVersion(metaHdr)
+
+		f.Request.SetMetaHeader(metaHdr)
+
+		err = signature.SignServiceMessage(f.Key, f.Request)
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	rangeStream, err := f.openStream(ctx, addr, c)
+	if err != nil {
+		return nil, err
+	}
+
+	return nil, f.readStream(ctx, rangeStream, c, pubkey)
+}
+
+func (f *getRangeRequestForwarder) verifyResponse(resp *objectV2.GetRangeResponse, pubkey []byte) error {
+	// verify response key
+	if err := internal.VerifyResponseKeyV2(pubkey, resp); err != nil {
+		return err
+	}
+
+	// verify response structure
+	if err := signature.VerifyServiceMessage(resp); err != nil {
+		return fmt.Errorf("could not verify %T: %w", resp, err)
+	}
+
+	if err := checkStatus(resp.GetMetaHeader().GetStatus()); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (f *getRangeRequestForwarder) openStream(ctx context.Context, addr network.Address, c client.MultiAddressClient) (*rpc.ObjectRangeResponseReader, error) {
+	// open stream
+	var rangeStream *rpc.ObjectRangeResponseReader
+	err := c.RawForAddress(addr, func(cli *rpcclient.Client) error {
+		var e error
+		rangeStream, e = rpc.GetObjectRange(cli, f.Request, rpcclient.WithContext(ctx))
+		return e
+	})
+	if err != nil {
+		return nil, fmt.Errorf("could not create Get payload range stream: %w", err)
+	}
+	return rangeStream, nil
+}
+
+func (f *getRangeRequestForwarder) readStream(ctx context.Context, rangeStream *rpc.ObjectRangeResponseReader, c client.MultiAddressClient, pubkey []byte) error {
+	resp := new(objectV2.GetRangeResponse)
+	var localProgress int
+
+	for {
+		// receive message from server stream
+		err := rangeStream.Read(resp)
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				break
+			}
+			internalclient.ReportError(c, err)
+			return fmt.Errorf("reading the response failed: %w", err)
+		}
+
+		if err := f.verifyResponse(resp, pubkey); err != nil {
+			return err
+		}
+
+		switch v := resp.GetBody().GetRangePart().(type) {
+		case nil:
+			return fmt.Errorf("unexpected range type %T", v)
+		case *objectV2.GetRangePartChunk:
+			origChunk := v.GetChunk()
+
+			chunk := chunkToSend(f.GlobalProgress, localProgress, origChunk)
+			if len(chunk) == 0 {
+				localProgress += len(origChunk)
+				continue
+			}
+
+			if err = f.Stream.WriteChunk(ctx, chunk); err != nil {
+				return fmt.Errorf("could not write object chunk in GetRange forwarder: %w", err)
+			}
+
+			localProgress += len(origChunk)
+			f.GlobalProgress += len(chunk)
+		case *objectV2.SplitInfo:
+			si := object.NewSplitInfoFromV2(v)
+			return object.NewSplitInfoError(si)
+		}
+	}
+	return nil
+}

pkg/services/object/get/v2/head_forwarder.go

@@ -0,0 +1,175 @@
+package getsvc
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"errors"
+	"fmt"
+	"sync"
+
+	objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
+	rpcclient "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/client"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/network"
+	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/internal"
+	frostfscrypto "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/crypto"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
+	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+)
+
+type headRequestForwarder struct {
+	Request    *objectV2.HeadRequest
+	Response   *objectV2.HeadResponse
+	OnceResign *sync.Once
+	ObjectAddr oid.Address
+	Key        *ecdsa.PrivateKey
+}
+
+func (f *headRequestForwarder) forwardRequestToNode(ctx context.Context, addr network.Address, c client.MultiAddressClient, pubkey []byte) (*object.Object, error) {
+	var err error
+
+	// once compose and resign forwarding request
+	f.OnceResign.Do(func() {
+		// compose meta header of the local server
+		metaHdr := new(session.RequestMetaHeader)
+		metaHdr.SetTTL(f.Request.GetMetaHeader().GetTTL() - 1)
+		// TODO: #1165 think how to set the other fields
+		metaHdr.SetOrigin(f.Request.GetMetaHeader())
+		writeCurrentVersion(metaHdr)
+
+		f.Request.SetMetaHeader(metaHdr)
+
+		err = signature.SignServiceMessage(f.Key, f.Request)
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	headResp, err := f.sendHeadRequest(ctx, addr, c)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := f.verifyResponse(headResp, pubkey); err != nil {
+		return nil, err
+	}
+
+	var (
+		hdr   *objectV2.Header
+		idSig *refs.Signature
+	)
+
+	switch v := headResp.GetBody().GetHeaderPart().(type) {
+	case nil:
+		return nil, fmt.Errorf("unexpected header type %T", v)
+	case *objectV2.ShortHeader:
+		if hdr, err = f.getHeaderFromShortHeader(v); err != nil {
+			return nil, err
+		}
+	case *objectV2.HeaderWithSignature:
+		if hdr, idSig, err = f.getHeaderAndSignature(v); err != nil {
+			return nil, err
+		}
+	case *objectV2.SplitInfo:
+		si := object.NewSplitInfoFromV2(v)
+		return nil, object.NewSplitInfoError(si)
+	}
+
+	objv2 := new(objectV2.Object)
+	objv2.SetHeader(hdr)
+	objv2.SetSignature(idSig)
+
+	obj := object.NewFromV2(objv2)
+	obj.SetID(f.ObjectAddr.Object())
+
+	return obj, nil
+}
+
+func (f *headRequestForwarder) getHeaderFromShortHeader(sh *objectV2.ShortHeader) (*objectV2.Header, error) {
+	if !f.Request.GetBody().GetMainOnly() {
+		return nil, fmt.Errorf("wrong header part type: expected %T, received %T",
+			(*objectV2.ShortHeader)(nil), (*objectV2.HeaderWithSignature)(nil),
+		)
+	}
+
+	hdr := new(objectV2.Header)
+	hdr.SetPayloadLength(sh.GetPayloadLength())
+	hdr.SetVersion(sh.GetVersion())
+	hdr.SetOwnerID(sh.GetOwnerID())
+	hdr.SetObjectType(sh.GetObjectType())
+	hdr.SetCreationEpoch(sh.GetCreationEpoch())
+	hdr.SetPayloadHash(sh.GetPayloadHash())
+	hdr.SetHomomorphicHash(sh.GetHomomorphicHash())
+	return hdr, nil
+}
+
+func (f *headRequestForwarder) getHeaderAndSignature(hdrWithSig *objectV2.HeaderWithSignature) (*objectV2.Header, *refs.Signature, error) {
+	if f.Request.GetBody().GetMainOnly() {
+		return nil, nil, fmt.Errorf("wrong header part type: expected %T, received %T",
+			(*objectV2.HeaderWithSignature)(nil), (*objectV2.ShortHeader)(nil),
+		)
+	}
+
+	if hdrWithSig == nil {
+		return nil, nil, errors.New("nil object part")
+	}
+
+	hdr := hdrWithSig.GetHeader()
+	idSig := hdrWithSig.GetSignature()
+
+	if idSig == nil {
+		// TODO(@cthulhu-rider): #1387 use "const" error
+		return nil, nil, errors.New("missing signature")
+	}
+
+	binID, err := f.ObjectAddr.Object().Marshal()
+	if err != nil {
+		return nil, nil, fmt.Errorf("marshal ID: %w", err)
+	}
+
+	var sig frostfscrypto.Signature
+	if err := sig.ReadFromV2(*idSig); err != nil {
+		return nil, nil, fmt.Errorf("can't read signature: %w", err)
+	}
+
+	if !sig.Verify(binID) {
+		return nil, nil, errors.New("invalid object ID signature")
+	}
+
+	return hdr, idSig, nil
+}
+
+func (f *headRequestForwarder) sendHeadRequest(ctx context.Context, addr network.Address, c client.MultiAddressClient) (*objectV2.HeadResponse, error) {
+	var headResp *objectV2.HeadResponse
+	err := c.RawForAddress(addr, func(cli *rpcclient.Client) error {
+		var e error
+		headResp, e = rpc.HeadObject(cli, f.Request, rpcclient.WithContext(ctx))
+		return e
+	})
+	if err != nil {
+		return nil, fmt.Errorf("sending the request failed: %w", err)
+	}
+	return headResp, nil
+}
+
+func (f *headRequestForwarder) verifyResponse(headResp *objectV2.HeadResponse, pubkey []byte) error {
+	// verify response key
+	if err := internal.VerifyResponseKeyV2(pubkey, headResp); err != nil {
+		return err
+	}
+
+	// verify response structure
+	if err := signature.VerifyServiceMessage(headResp); err != nil {
+		return fmt.Errorf("response verification failed: %w", err)
+	}
+
+	if err := checkStatus(f.Response.GetMetaHeader().GetStatus()); err != nil {
+		return err
+	}
+	return nil
+}

pkg/services/object/get/v2/util.go

@@ -6,25 +6,18 @@ import (
 	"errors"
 	"fmt"
 	"hash"
-	"io"
 	"sync"
 
 	objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
-	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc"
-	rpcclient "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
-	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/signature"
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/status"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/client"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/network"
 	objectSvc "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object"
 	getsvc "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/get"
-	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/internal"
-	internalclient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/internal/client"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/util"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
-	frostfscrypto "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/crypto"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	versionSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/version"
@@ -33,7 +26,6 @@ import (
 
 var errWrongMessageSeq = errors.New("incorrect message sequence")
 
-// nolint: funlen, gocognit
 func (s *Service) toPrm(req *objectV2.GetRequest, stream objectSvc.GetObjectStream) (*getsvc.Prm, error) {
 	body := req.GetBody()
 
@@ -49,8 +41,6 @@ func (s *Service) toPrm(req *objectV2.GetRequest, stream objectSvc.GetObjectStre
 		return nil, fmt.Errorf("invalid object address: %w", err)
 	}
 
-	meta := req.GetMetaHeader()
-
 	commonPrm, err := util.CommonPrmFromV2(req)
 	if err != nil {
 		return nil, err
@@ -66,141 +56,26 @@ func (s *Service) toPrm(req *objectV2.GetRequest, stream objectSvc.GetObjectStre
 	p.SetObjectWriter(streamWrapper)
 
 	if !commonPrm.LocalOnly() {
-		var onceResign sync.Once
-
-		var onceHeaderSending sync.Once
-		var globalProgress int
-
-		p.SetRequestForwarder(groupAddressRequestForwarder(func(addr network.Address, c client.MultiAddressClient, pubkey []byte) (*object.Object, error) {
-			var err error
-
 		key, err := s.keyStorage.GetKey(nil)
 		if err != nil {
 			return nil, err
 		}
 
-			// once compose and resign forwarding request
+		forwarder := &getRequestForwarder{
-			onceResign.Do(func() {
+			OnceResign:        &sync.Once{},
-				// compose meta header of the local server
+			OnceHeaderSending: &sync.Once{},
-				metaHdr := new(session.RequestMetaHeader)
+			GlobalProgress:    0,
-				metaHdr.SetTTL(meta.GetTTL() - 1)
+			Key:               key,
-				// TODO: #1165 think how to set the other fields
+			Request:           req,
-				metaHdr.SetOrigin(meta)
+			Stream:            streamWrapper,
-				writeCurrentVersion(metaHdr)
-
-				req.SetMetaHeader(metaHdr)
-
-				err = signature.SignServiceMessage(key, req)
-			})
-
-			if err != nil {
-				return nil, err
 		}
 
-			// code below is copy-pasted from c.GetObject implementation,
+		p.SetRequestForwarder(groupAddressRequestForwarder(forwarder.forwardRequestToNode))
-			// perhaps it is worth highlighting the utility function in frostfs-api-go
-
-			// open stream
-			var getStream *rpc.GetResponseReader
-			err = c.RawForAddress(addr, func(cli *rpcclient.Client) error {
-				getStream, err = rpc.GetObject(cli, req, rpcclient.WithContext(stream.Context()))
-				return err
-			})
-			if err != nil {
-				return nil, fmt.Errorf("stream opening failed: %w", err)
-			}
-
-			var (
-				headWas       bool
-				resp          = new(objectV2.GetResponse)
-				localProgress int
-			)
-
-			for {
-				// receive message from server stream
-				err := getStream.Read(resp)
-				if err != nil {
-					if errors.Is(err, io.EOF) {
-						if !headWas {
-							return nil, io.ErrUnexpectedEOF
-						}
-
-						break
-					}
-
-					internalclient.ReportError(c, err)
-					return nil, fmt.Errorf("reading the response failed: %w", err)
-				}
-
-				// verify response key
-				if err = internal.VerifyResponseKeyV2(pubkey, resp); err != nil {
-					return nil, err
-				}
-
-				// verify response structure
-				if err := signature.VerifyServiceMessage(resp); err != nil {
-					return nil, fmt.Errorf("response verification failed: %w", err)
-				}
-
-				if err = checkStatus(resp.GetMetaHeader().GetStatus()); err != nil {
-					return nil, err
-				}
-
-				switch v := resp.GetBody().GetObjectPart().(type) {
-				default:
-					return nil, fmt.Errorf("unexpected object part %T", v)
-				case *objectV2.GetObjectPartInit:
-					if headWas {
-						return nil, errWrongMessageSeq
-					}
-
-					headWas = true
-
-					obj := new(objectV2.Object)
-
-					obj.SetObjectID(v.GetObjectID())
-					obj.SetSignature(v.GetSignature())
-					obj.SetHeader(v.GetHeader())
-
-					onceHeaderSending.Do(func() {
-						err = streamWrapper.WriteHeader(stream.Context(), object.NewFromV2(obj))
-					})
-					if err != nil {
-						return nil, fmt.Errorf("could not write object header in Get forwarder: %w", err)
-					}
-				case *objectV2.GetObjectPartChunk:
-					if !headWas {
-						return nil, errWrongMessageSeq
-					}
-
-					origChunk := v.GetChunk()
-
-					chunk := chunkToSend(globalProgress, localProgress, origChunk)
-					if len(chunk) == 0 {
-						localProgress += len(origChunk)
-						continue
-					}
-
-					if err = streamWrapper.WriteChunk(stream.Context(), chunk); err != nil {
-						return nil, fmt.Errorf("could not write object chunk in Get forwarder: %w", err)
-					}
-
-					localProgress += len(origChunk)
-					globalProgress += len(chunk)
-				case *objectV2.SplitInfo:
-					si := object.NewSplitInfoFromV2(v)
-					return nil, object.NewSplitInfoError(si)
-				}
-			}
-
-			return nil, nil
-		}))
 	}
 
 	return p, nil
 }
 
-// nolint: funlen, gocognit
 func (s *Service) toRangePrm(req *objectV2.GetRangeRequest, stream objectSvc.GetObjectRangeStream) (*getsvc.RangePrm, error) {
 	body := req.GetBody()
 
@@ -216,8 +91,6 @@ func (s *Service) toRangePrm(req *objectV2.GetRangeRequest, stream objectSvc.Get
 		return nil, fmt.Errorf("invalid object address: %w", err)
 	}
 
-	meta := req.GetMetaHeader()
-
 	commonPrm, err := util.CommonPrmFromV2(req)
 	if err != nil {
 		return nil, err
@@ -239,104 +112,20 @@ func (s *Service) toRangePrm(req *objectV2.GetRangeRequest, stream objectSvc.Get
 	}
 
 	if !commonPrm.LocalOnly() {
-		var onceResign sync.Once
-		var globalProgress int
-
 		key, err := s.keyStorage.GetKey(nil)
 		if err != nil {
 			return nil, err
 		}
 
-		p.SetRequestForwarder(groupAddressRequestForwarder(func(addr network.Address, c client.MultiAddressClient, pubkey []byte) (*object.Object, error) {
+		forwarder := &getRangeRequestForwarder{
-			var err error
+			OnceResign:     &sync.Once{},
-
+			GlobalProgress: 0,
-			// once compose and resign forwarding request
+			Key:            key,
-			onceResign.Do(func() {
+			Request:        req,
-				// compose meta header of the local server
+			Stream:         streamWrapper,
-				metaHdr := new(session.RequestMetaHeader)
-				metaHdr.SetTTL(meta.GetTTL() - 1)
-				// TODO: #1165 think how to set the other fields
-				metaHdr.SetOrigin(meta)
-				writeCurrentVersion(metaHdr)
-
-				req.SetMetaHeader(metaHdr)
-
-				err = signature.SignServiceMessage(key, req)
-			})
-
-			if err != nil {
-				return nil, err
 		}
 
-			// code below is copy-pasted from c.ObjectPayloadRangeData implementation,
+		p.SetRequestForwarder(groupAddressRequestForwarder(forwarder.forwardRequestToNode))
-			// perhaps it is worth highlighting the utility function in frostfs-api-go
-
-			// open stream
-			var rangeStream *rpc.ObjectRangeResponseReader
-			err = c.RawForAddress(addr, func(cli *rpcclient.Client) error {
-				rangeStream, err = rpc.GetObjectRange(cli, req, rpcclient.WithContext(stream.Context()))
-				return err
-			})
-			if err != nil {
-				return nil, fmt.Errorf("could not create Get payload range stream: %w", err)
-			}
-
-			resp := new(objectV2.GetRangeResponse)
-			var localProgress int
-
-			for {
-				// receive message from server stream
-				err := rangeStream.Read(resp)
-				if err != nil {
-					if errors.Is(err, io.EOF) {
-						break
-					}
-
-					internalclient.ReportError(c, err)
-					return nil, fmt.Errorf("reading the response failed: %w", err)
-				}
-
-				// verify response key
-				if err = internal.VerifyResponseKeyV2(pubkey, resp); err != nil {
-					return nil, err
-				}
-
-				// verify response structure
-				if err := signature.VerifyServiceMessage(resp); err != nil {
-					return nil, fmt.Errorf("could not verify %T: %w", resp, err)
-				}
-
-				if err = checkStatus(resp.GetMetaHeader().GetStatus()); err != nil {
-					return nil, err
-				}
-
-				switch v := resp.GetBody().GetRangePart().(type) {
-				case nil:
-					return nil, fmt.Errorf("unexpected range type %T", v)
-				case *objectV2.GetRangePartChunk:
-					origChunk := v.GetChunk()
-
-					chunk := chunkToSend(globalProgress, localProgress, origChunk)
-					if len(chunk) == 0 {
-						localProgress += len(origChunk)
-						continue
-					}
-
-					if err = streamWrapper.WriteChunk(stream.Context(), chunk); err != nil {
-						return nil, fmt.Errorf("could not write object chunk in GetRange forwarder: %w", err)
-					}
-
-					localProgress += len(origChunk)
-					globalProgress += len(chunk)
-				case *objectV2.SplitInfo:
-					si := object.NewSplitInfoFromV2(v)
-
-					return nil, object.NewSplitInfoError(si)
-				}
-			}
-
-			return nil, nil
-		}))
 	}
 
 	return p, nil
@@ -426,7 +215,6 @@ func (w *headResponseWriter) WriteHeader(_ context.Context, hdr *object.Object)
 	return nil
 }
 
-// nolint: funlen
 func (s *Service) toHeadPrm(ctx context.Context, req *objectV2.HeadRequest, resp *objectV2.HeadResponse) (*getsvc.HeadPrm, error) {
 	body := req.GetBody()
 
@@ -442,8 +230,6 @@ func (s *Service) toHeadPrm(ctx context.Context, req *objectV2.HeadRequest, resp
 		return nil, fmt.Errorf("invalid object address: %w", err)
 	}
 
-	meta := req.GetMetaHeader()
-
 	commonPrm, err := util.CommonPrmFromV2(req)
 	if err != nil {
 		return nil, err
@@ -463,135 +249,20 @@ func (s *Service) toHeadPrm(ctx context.Context, req *objectV2.HeadRequest, resp
 		return p, nil
 	}
 
-	var onceResign sync.Once
-
-	p.SetRequestForwarder(groupAddressRequestForwarder(func(addr network.Address, c client.MultiAddressClient, pubkey []byte) (*object.Object, error) {
-		var err error
-
 	key, err := s.keyStorage.GetKey(nil)
 	if err != nil {
 		return nil, err
 	}
 
-		// once compose and resign forwarding request
+	forwarder := &headRequestForwarder{
-		onceResign.Do(func() {
+		Request:    req,
-			// compose meta header of the local server
+		Response:   resp,
-			metaHdr := new(session.RequestMetaHeader)
+		OnceResign: &sync.Once{},
-			metaHdr.SetTTL(meta.GetTTL() - 1)
+		ObjectAddr: objAddr,
-			// TODO: #1165 think how to set the other fields
+		Key:        key,
-			metaHdr.SetOrigin(meta)
-			writeCurrentVersion(metaHdr)
-
-			req.SetMetaHeader(metaHdr)
-
-			err = signature.SignServiceMessage(key, req)
-		})
-
-		if err != nil {
-			return nil, err
 	}
 
-		// code below is copy-pasted from c.GetObjectHeader implementation,
+	p.SetRequestForwarder(groupAddressRequestForwarder(forwarder.forwardRequestToNode))
-		// perhaps it is worth highlighting the utility function in frostfs-api-go
-
-		// send Head request
-		var headResp *objectV2.HeadResponse
-		err = c.RawForAddress(addr, func(cli *rpcclient.Client) error {
-			headResp, err = rpc.HeadObject(cli, req, rpcclient.WithContext(ctx))
-			return err
-		})
-		if err != nil {
-			return nil, fmt.Errorf("sending the request failed: %w", err)
-		}
-
-		// verify response key
-		if err = internal.VerifyResponseKeyV2(pubkey, headResp); err != nil {
-			return nil, err
-		}
-
-		// verify response structure
-		if err := signature.VerifyServiceMessage(headResp); err != nil {
-			return nil, fmt.Errorf("response verification failed: %w", err)
-		}
-
-		if err = checkStatus(resp.GetMetaHeader().GetStatus()); err != nil {
-			return nil, err
-		}
-
-		var (
-			hdr   *objectV2.Header
-			idSig *refs.Signature
-		)
-
-		switch v := headResp.GetBody().GetHeaderPart().(type) {
-		case nil:
-			return nil, fmt.Errorf("unexpected header type %T", v)
-		case *objectV2.ShortHeader:
-			if !body.GetMainOnly() {
-				return nil, fmt.Errorf("wrong header part type: expected %T, received %T",
-					(*objectV2.ShortHeader)(nil), (*objectV2.HeaderWithSignature)(nil),
-				)
-			}
-
-			h := v
-
-			hdr = new(objectV2.Header)
-			hdr.SetPayloadLength(h.GetPayloadLength())
-			hdr.SetVersion(h.GetVersion())
-			hdr.SetOwnerID(h.GetOwnerID())
-			hdr.SetObjectType(h.GetObjectType())
-			hdr.SetCreationEpoch(h.GetCreationEpoch())
-			hdr.SetPayloadHash(h.GetPayloadHash())
-			hdr.SetHomomorphicHash(h.GetHomomorphicHash())
-		case *objectV2.HeaderWithSignature:
-			if body.GetMainOnly() {
-				return nil, fmt.Errorf("wrong header part type: expected %T, received %T",
-					(*objectV2.HeaderWithSignature)(nil), (*objectV2.ShortHeader)(nil),
-				)
-			}
-
-			hdrWithSig := v
-			if hdrWithSig == nil {
-				return nil, errors.New("nil object part")
-			}
-
-			hdr = hdrWithSig.GetHeader()
-			idSig = hdrWithSig.GetSignature()
-
-			if idSig == nil {
-				// TODO(@cthulhu-rider): #1387 use "const" error
-				return nil, errors.New("missing signature")
-			}
-
-			binID, err := objAddr.Object().Marshal()
-			if err != nil {
-				return nil, fmt.Errorf("marshal ID: %w", err)
-			}
-
-			var sig frostfscrypto.Signature
-			if err := sig.ReadFromV2(*idSig); err != nil {
-				return nil, fmt.Errorf("can't read signature: %w", err)
-			}
-
-			if !sig.Verify(binID) {
-				return nil, errors.New("invalid object ID signature")
-			}
-		case *objectV2.SplitInfo:
-			si := object.NewSplitInfoFromV2(v)
-
-			return nil, object.NewSplitInfoError(si)
-		}
-
-		objv2 := new(objectV2.Object)
-		objv2.SetHeader(hdr)
-		objv2.SetSignature(idSig)
-
-		obj := object.NewFromV2(objv2)
-		obj.SetID(objAddr.Object())
-
-		// convert the object
-		return obj, nil
-	}))
 
 	return p, nil
 }
@@ -659,8 +330,8 @@ func toShortObjectHeader(hdr *object.Object) objectV2.GetHeaderPart {
 	return sh
 }
 
-func groupAddressRequestForwarder(f func(network.Address, client.MultiAddressClient, []byte) (*object.Object, error)) getsvc.RequestForwarder {
+func groupAddressRequestForwarder(f func(context.Context, network.Address, client.MultiAddressClient, []byte) (*object.Object, error)) getsvc.RequestForwarder {
-	return func(info client.NodeInfo, c client.MultiAddressClient) (*object.Object, error) {
+	return func(ctx context.Context, info client.NodeInfo, c client.MultiAddressClient) (*object.Object, error) {
 		var (
 			firstErr error
 			res      *object.Object
@@ -681,7 +352,7 @@ func groupAddressRequestForwarder(f func(network.Address, client.MultiAddressCli
 				// would be nice to log otherwise
 			}()
 
-			res, err = f(addr, c, key)
+			res, err = f(ctx, addr, c, key)
 
 			return
 		})