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[#13] services/util: Support client-side stream in SignService

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Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2020-08-26 13:00:41 +03:00 committed by Alex Vanin
parent d54a5d4f66
commit b7702349dc
2 changed files with 65 additions and 28 deletions
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37
pkg/services/object/sign.go
View file

@ -5,7 +5,6 @@ import (
"crypto/ecdsa"
"github.com/nspcc-dev/neofs-api-go/v2/object"
"github.com/nspcc-dev/neofs-api-go/v2/signature"
"github.com/nspcc-dev/neofs-node/pkg/services/util"
"github.com/pkg/errors"
)
@ -19,21 +18,19 @@ type signService struct {
}
type searchStreamSigner struct {
stream *util.MessageStreamer
stream *util.ResponseMessageStreamer
}
type getStreamSigner struct {
stream *util.MessageStreamer
stream *util.ResponseMessageStreamer
}
type putStreamSigner struct {
key *ecdsa.PrivateKey
stream object.PutObjectStreamer
stream *util.RequestMessageStreamer
}
type getRangeStreamSigner struct {
stream *util.MessageStreamer
stream *util.ResponseMessageStreamer
}
func NewSignService(key *ecdsa.PrivateKey, svc object.Service) object.Service {
@ -55,7 +52,7 @@ func (s *getStreamSigner) Recv() (*object.GetResponse, error) {
func (s *signService) Get(ctx context.Context, req *object.GetRequest) (object.GetObjectStreamer, error) {
stream, err := s.sigSvc.HandleServerStreamRequest(ctx, req,
func(ctx context.Context, req interface{}) (util.MessageReader, error) {
func(ctx context.Context, req interface{}) (util.ResponseMessageReader, error) {
stream, err := s.svc.Get(ctx, req.(*object.GetRequest))
if err != nil {
return nil, err
@ -76,10 +73,6 @@ func (s *signService) Get(ctx context.Context, req *object.GetRequest) (object.G
}
func (s *putStreamSigner) Send(req *object.PutRequest) error {
if err := signature.VerifyServiceMessage(req); err != nil {
return errors.Wrap(err, "could not verify request")
}
return s.stream.Send(req)
}
@ -89,11 +82,7 @@ func (s *putStreamSigner) CloseAndRecv() (*object.PutResponse, error) {
return nil, errors.Wrap(err, "could not receive response")
}
if err := signature.SignServiceMessage(s.key, r); err != nil {
return nil, errors.Wrap(err, "could not sign response")
}
return r, nil
return r.(*object.PutResponse), nil
}
func (s *signService) Put(ctx context.Context) (object.PutObjectStreamer, error) {
@ -103,8 +92,14 @@ func (s *signService) Put(ctx context.Context) (object.PutObjectStreamer, error)
}
return &putStreamSigner{
key: s.key,
stream: stream,
stream: s.sigSvc.CreateRequestStreamer(
func(req interface{}) error {
return stream.Send(req.(*object.PutRequest))
},
func() (interface{}, error) {
return stream.CloseAndRecv()
},
),
}, nil
}
@ -132,7 +127,7 @@ func (s *searchStreamSigner) Recv() (*object.SearchResponse, error) {
func (s *signService) Search(ctx context.Context, req *object.SearchRequest) (object.SearchObjectStreamer, error) {
stream, err := s.sigSvc.HandleServerStreamRequest(ctx, req,
func(ctx context.Context, req interface{}) (util.MessageReader, error) {
func(ctx context.Context, req interface{}) (util.ResponseMessageReader, error) {
stream, err := s.svc.Search(ctx, req.(*object.SearchRequest))
if err != nil {
return nil, err
@ -176,7 +171,7 @@ func (s *getRangeStreamSigner) Recv() (*object.GetRangeResponse, error) {
func (s *signService) GetRange(ctx context.Context, req *object.GetRangeRequest) (object.GetRangeObjectStreamer, error) {
stream, err := s.sigSvc.HandleServerStreamRequest(ctx, req,
func(ctx context.Context, req interface{}) (util.MessageReader, error) {
func(ctx context.Context, req interface{}) (util.ResponseMessageReader, error) {
stream, err := s.svc.GetRange(ctx, req.(*object.GetRangeRequest))
if err != nil {
return nil, err

56
pkg/services/util/sign.go
View file

@ -14,14 +14,26 @@ type SignService struct {
key *ecdsa.PrivateKey
}
type ServerStreamHandler func(context.Context, interface{}) (MessageReader, error)
type ServerStreamHandler func(context.Context, interface{}) (ResponseMessageReader, error)
type MessageReader func() (interface{}, error)
type ResponseMessageReader func() (interface{}, error)
type MessageStreamer struct {
type ResponseMessageStreamer struct {
key *ecdsa.PrivateKey
recv MessageReader
recv ResponseMessageReader
}
type RequestMessageWriter func(interface{}) error
type ClientStreamCloser func() (interface{}, error)
type RequestMessageStreamer struct {
key *ecdsa.PrivateKey
send RequestMessageWriter
close ClientStreamCloser
}
func NewUnarySignService(key *ecdsa.PrivateKey) *SignService {
@ -30,7 +42,37 @@ func NewUnarySignService(key *ecdsa.PrivateKey) *SignService {
}
}
func (s *MessageStreamer) Recv() (interface{}, error) {
func (s *RequestMessageStreamer) Send(req interface{}) error {
// verify request signatures
if err := signature.VerifyServiceMessage(req); err != nil {
return errors.Wrap(err, "could not verify request")
}
return s.send(req)
}
func (s *RequestMessageStreamer) CloseAndRecv() (interface{}, error) {
resp, err := s.close()
if err != nil {
return nil, errors.Wrap(err, "could not close stream and receive response")
}
if err := signature.SignServiceMessage(s.key, resp); err != nil {
return nil, errors.Wrap(err, "could not sign response")
}
return resp, nil
}
func (s *SignService) CreateRequestStreamer(sender RequestMessageWriter, closer ClientStreamCloser) *RequestMessageStreamer {
return &RequestMessageStreamer{
key: s.key,
send: sender,
close: closer,
}
}
func (s *ResponseMessageStreamer) Recv() (interface{}, error) {
m, err := s.recv()
if err != nil {
return nil, errors.Wrap(err, "could not receive response message for signing")
@ -43,7 +85,7 @@ func (s *MessageStreamer) Recv() (interface{}, error) {
return m, nil
}
func (s *SignService) HandleServerStreamRequest(ctx context.Context, req interface{}, handler ServerStreamHandler) (*MessageStreamer, error) {
func (s *SignService) HandleServerStreamRequest(ctx context.Context, req interface{}, handler ServerStreamHandler) (*ResponseMessageStreamer, error) {
// verify request signatures
if err := signature.VerifyServiceMessage(req); err != nil {
return nil, errors.Wrap(err, "could not verify request")
@ -54,7 +96,7 @@ func (s *SignService) HandleServerStreamRequest(ctx context.Context, req interfa
return nil, errors.Wrap(err, "could not create message reader")
}
return &MessageStreamer{
return &ResponseMessageStreamer{
key: s.key,
recv: msgRdr,
}, nil