[#501] object/put: relay requests for signed objects

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

pkg/services/object/put/distributed.go

@@ -25,6 +25,8 @@ type distributedTarget struct {
 
 	nodeTargetInitializer func(*network.Address) transformer.ObjectTarget
 
+	relay func(*network.Address) error
+
 	fmt *object.FormatValidator
 
 	log *logger.Logger
@@ -67,6 +69,13 @@ func (t *distributedTarget) Close() (*transformer.AccessIdentifiers, error) {
 }
 
 func (t *distributedTarget) sendObject(addr *network.Address) error {
+	if t.relay != nil {
+		err := t.relay(addr)
+		if err == nil || !errors.Is(err, errLocalAddress) {
+			return err
+		}
+	}
+
 	target := t.nodeTargetInitializer(addr)
 
 	if err := target.WriteHeader(t.obj); err != nil {

pkg/services/object/put/prm.go

@@ -1,6 +1,7 @@
 package putsvc
 
 import (
+	"github.com/nspcc-dev/neofs-api-go/pkg/client"
 	"github.com/nspcc-dev/neofs-node/pkg/core/object"
 	"github.com/nspcc-dev/neofs-node/pkg/services/object/util"
 	"github.com/nspcc-dev/neofs-node/pkg/services/object_manager/placement"
@@ -12,6 +13,8 @@ type PutInitPrm struct {
 	hdr *object.RawObject
 
 	traverseOpts []placement.Option
+
+	relay func(client.Client) error
 }
 
 type PutChunkPrm struct {
@@ -42,6 +45,14 @@ func (p *PutInitPrm) WithObject(v *object.RawObject) *PutInitPrm {
 	return p
 }
 
+func (p *PutInitPrm) WithRelay(f func(client.Client) error) *PutInitPrm {
+	if p != nil {
+		p.relay = f
+	}
+
+	return p
+}
+
 func (p *PutChunkPrm) WithChunk(v []byte) *PutChunkPrm {
 	if p != nil {
 		p.chunk = v

pkg/services/object/put/streamer.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 
+	"github.com/nspcc-dev/neofs-api-go/pkg/client"
 	"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
 	"github.com/nspcc-dev/neofs-node/pkg/network"
 	"github.com/nspcc-dev/neofs-node/pkg/services/object/util"
@@ -18,6 +19,8 @@ type Streamer struct {
 	ctx context.Context
 
 	target transformer.ObjectTarget
+
+	relay func(client.Client) error
 }
 
 var errNotInit = errors.New("stream not initialized")
@@ -48,6 +51,8 @@ func (p *Streamer) initTarget(prm *PutInitPrm) error {
 	}
 
 	if prm.hdr.Signature() != nil {
+		p.relay = prm.relay
+
 		// prepare untrusted-Put object target
 		p.target = &validatingTarget{
 			nextTarget: p.newCommonTarget(prm),
@@ -128,7 +133,25 @@ func (p *Streamer) preparePrm(prm *PutInitPrm) error {
 	return nil
 }
 
+var errLocalAddress = errors.New("can't relay to local address")
+
 func (p *Streamer) newCommonTarget(prm *PutInitPrm) transformer.ObjectTarget {
+	var relay func(*network.Address) error
+	if p.relay != nil {
+		relay = func(addr *network.Address) error {
+			if network.IsLocalAddress(p.localAddrSrc, addr) {
+				return errLocalAddress
+			}
+
+			c, err := p.clientConstructor.Get(addr)
+			if err != nil {
+				return fmt.Errorf("could not create SDK client %s: %w", addr, err)
+			}
+
+			return p.relay(c)
+		}
+	}
+
 	return &distributedTarget{
 		traverseOpts: prm.traverseOpts,
 		workerPool:   p.workerPool,
@@ -147,6 +170,7 @@ func (p *Streamer) newCommonTarget(prm *PutInitPrm) transformer.ObjectTarget {
 				clientConstructor: p.clientConstructor,
 			}
 		},
+		relay: relay,
 		fmt:   p.fmtValidator,
 		log:   p.log,
 	}

pkg/services/object/put/v2/streamer.go

@@ -3,12 +3,18 @@ package putsvc
 import (
 	"fmt"
 
+	"github.com/nspcc-dev/neofs-api-go/pkg/client"
 	"github.com/nspcc-dev/neofs-api-go/v2/object"
+	"github.com/nspcc-dev/neofs-api-go/v2/rpc"
+	"github.com/nspcc-dev/neofs-api-go/v2/signature"
 	putsvc "github.com/nspcc-dev/neofs-node/pkg/services/object/put"
 )
 
 type streamer struct {
 	stream     *putsvc.Streamer
+	saveChunks bool
+	init       *object.PutRequest
+	chunks     []*object.PutRequest
 }
 
 func (s *streamer) Send(req *object.PutRequest) (err error) {
@@ -16,7 +22,7 @@ func (s *streamer) Send(req *object.PutRequest) (err error) {
 	case *object.PutObjectPartInit:
 		var initPrm *putsvc.PutInitPrm
 
-		initPrm, err = toInitPrm(v, req)
+		initPrm, err = s.toInitPrm(v, req)
 		if err != nil {
 			return err
 		}
@@ -24,10 +30,19 @@ func (s *streamer) Send(req *object.PutRequest) (err error) {
 		if err = s.stream.Init(initPrm); err != nil {
 			err = fmt.Errorf("(%T) could not init object put stream: %w", s, err)
 		}
+
+		s.saveChunks = v.GetSignature() != nil
+		if s.saveChunks {
+			s.init = req
+		}
 	case *object.PutObjectPartChunk:
 		if err = s.stream.SendChunk(toChunkPrm(v)); err != nil {
 			err = fmt.Errorf("(%T) could not send payload chunk: %w", s, err)
 		}
+
+		if s.saveChunks {
+			s.chunks = append(s.chunks, req)
+		}
 	default:
 		err = fmt.Errorf("(%T) invalid object put stream part type %T", s, v)
 	}
@@ -43,3 +58,37 @@ func (s *streamer) CloseAndRecv() (*object.PutResponse, error) {
 
 	return fromPutResponse(resp), nil
 }
+
+func (s *streamer) relayRequest(c client.Client) error {
+	// open stream
+	resp := new(object.PutResponse)
+
+	stream, err := rpc.PutObject(c.Raw(), resp)
+	if err != nil {
+		return fmt.Errorf("stream opening failed: %w", err)
+	}
+
+	// send init part
+	err = stream.Write(s.init)
+	if err != nil {
+		return fmt.Errorf("sending the initial message to stream failed: %w", err)
+	}
+
+	for i := range s.chunks {
+		if err := stream.Write(s.chunks[i]); err != nil {
+			return fmt.Errorf("sending the chunk %d failed: %w", i, err)
+		}
+	}
+
+	// close object stream and receive response from remote node
+	err = stream.Close()
+	if err != nil {
+		return fmt.Errorf("closing the stream failed: %w", err)
+	}
+
+	// verify response structure
+	if err := signature.VerifyServiceMessage(resp); err != nil {
+		return fmt.Errorf("response verification failed: %w", err)
+	}
+	return nil
+}

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

@@ -7,7 +7,7 @@ import (
 	"github.com/nspcc-dev/neofs-node/pkg/services/object/util"
 )
 
-func toInitPrm(part *objectV2.PutObjectPartInit, req *objectV2.PutRequest) (*putsvc.PutInitPrm, error) {
+func (s *streamer) toInitPrm(part *objectV2.PutObjectPartInit, req *objectV2.PutRequest) (*putsvc.PutInitPrm, error) {
 	oV2 := new(objectV2.Object)
 	oV2.SetObjectID(part.GetObjectID())
 	oV2.SetSignature(part.GetSignature())
@@ -22,6 +22,7 @@ func toInitPrm(part *objectV2.PutObjectPartInit, req *objectV2.PutRequest) (*put
 		WithObject(
 			object.NewRawFromV2(oV2),
 		).
+		WithRelay(s.relayRequest).
 		WithCommonPrm(commonPrm), nil
 }