frostfs-node/pkg/services/object/sign.go
Leonard Lyubich 75162d1f8d [#13] services/util: Support server-side stream in UnarySignService
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-02 11:25:35 +03:00

210 lines
5 KiB
Go

package object
import (
"context"
"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"
)
type signService struct {
key *ecdsa.PrivateKey
unarySigService *util.UnarySignService
svc object.Service
}
type searchStreamSigner struct {
stream *util.MessageStreamer
}
type getStreamSigner struct {
stream *util.MessageStreamer
}
type putStreamSigner struct {
key *ecdsa.PrivateKey
stream object.PutObjectStreamer
}
type getRangeStreamSigner struct {
stream *util.MessageStreamer
}
func NewSignService(key *ecdsa.PrivateKey, svc object.Service) object.Service {
return &signService{
key: key,
unarySigService: util.NewUnarySignService(key),
svc: svc,
}
}
func (s *getStreamSigner) Recv() (*object.GetResponse, error) {
r, err := s.stream.Recv()
if err != nil {
return nil, errors.Wrap(err, "could not receive response")
}
return r.(*object.GetResponse), nil
}
func (s *signService) Get(ctx context.Context, req *object.GetRequest) (object.GetObjectStreamer, error) {
stream, err := s.unarySigService.HandleServerStreamRequest(ctx, req,
func(ctx context.Context, req interface{}) (util.MessageReader, error) {
stream, err := s.svc.Get(ctx, req.(*object.GetRequest))
if err != nil {
return nil, err
}
return func() (interface{}, error) {
return stream.Recv()
}, nil
},
)
if err != nil {
return nil, err
}
return &getStreamSigner{
stream: stream,
}, nil
}
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)
}
func (s *putStreamSigner) CloseAndRecv() (*object.PutResponse, error) {
r, err := s.stream.CloseAndRecv()
if err != nil {
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
}
func (s *signService) Put(ctx context.Context) (object.PutObjectStreamer, error) {
stream, err := s.svc.Put(ctx)
if err != nil {
return nil, errors.Wrap(err, "could not create Put object streamer")
}
return &putStreamSigner{
key: s.key,
stream: stream,
}, nil
}
func (s *signService) Head(ctx context.Context, req *object.HeadRequest) (*object.HeadResponse, error) {
resp, err := s.unarySigService.HandleUnaryRequest(ctx, req,
func(ctx context.Context, req interface{}) (interface{}, error) {
return s.svc.Head(ctx, req.(*object.HeadRequest))
},
)
if err != nil {
return nil, err
}
return resp.(*object.HeadResponse), nil
}
func (s *searchStreamSigner) Recv() (*object.SearchResponse, error) {
r, err := s.stream.Recv()
if err != nil {
return nil, errors.Wrap(err, "could not receive response")
}
return r.(*object.SearchResponse), nil
}
func (s *signService) Search(ctx context.Context, req *object.SearchRequest) (object.SearchObjectStreamer, error) {
stream, err := s.unarySigService.HandleServerStreamRequest(ctx, req,
func(ctx context.Context, req interface{}) (util.MessageReader, error) {
stream, err := s.svc.Search(ctx, req.(*object.SearchRequest))
if err != nil {
return nil, err
}
return func() (interface{}, error) {
return stream.Recv()
}, nil
},
)
if err != nil {
return nil, err
}
return &searchStreamSigner{
stream: stream,
}, nil
}
func (s *signService) Delete(ctx context.Context, req *object.DeleteRequest) (*object.DeleteResponse, error) {
resp, err := s.unarySigService.HandleUnaryRequest(ctx, req,
func(ctx context.Context, req interface{}) (interface{}, error) {
return s.svc.Delete(ctx, req.(*object.DeleteRequest))
},
)
if err != nil {
return nil, err
}
return resp.(*object.DeleteResponse), nil
}
func (s *getRangeStreamSigner) Recv() (*object.GetRangeResponse, error) {
r, err := s.stream.Recv()
if err != nil {
return nil, errors.Wrap(err, "could not receive response")
}
return r.(*object.GetRangeResponse), nil
}
func (s *signService) GetRange(ctx context.Context, req *object.GetRangeRequest) (object.GetRangeObjectStreamer, error) {
stream, err := s.unarySigService.HandleServerStreamRequest(ctx, req,
func(ctx context.Context, req interface{}) (util.MessageReader, error) {
stream, err := s.svc.GetRange(ctx, req.(*object.GetRangeRequest))
if err != nil {
return nil, err
}
return func() (interface{}, error) {
return stream.Recv()
}, nil
},
)
if err != nil {
return nil, err
}
return &getRangeStreamSigner{
stream: stream,
}, nil
}
func (s *signService) GetRangeHash(ctx context.Context, req *object.GetRangeHashRequest) (*object.GetRangeHashResponse, error) {
resp, err := s.unarySigService.HandleUnaryRequest(ctx, req,
func(ctx context.Context, req interface{}) (interface{}, error) {
return s.svc.GetRangeHash(ctx, req.(*object.GetRangeHashRequest))
},
)
if err != nil {
return nil, err
}
return resp.(*object.GetRangeHashResponse), nil
}