frostfs-node/pkg/services/object/sign.go
Leonard Lyubich f24daa10ff [#233] services/object: Implement new Get algorithm
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00

196 lines
4.7 KiB
Go

package object
import (
"context"
"crypto/ecdsa"
"github.com/nspcc-dev/neofs-api-go/v2/object"
"github.com/nspcc-dev/neofs-node/pkg/services/util"
"github.com/pkg/errors"
)
type SignService struct {
key *ecdsa.PrivateKey
sigSvc *util.SignService
svc ServiceServer
}
type searchStreamSigner struct {
stream *util.ResponseMessageStreamer
}
type getStreamSigner struct {
util.ServerStream
respWriter util.ResponseMessageWriter
}
type putStreamSigner struct {
stream *util.RequestMessageStreamer
}
type getRangeStreamSigner struct {
stream *util.ResponseMessageStreamer
}
func NewSignService(key *ecdsa.PrivateKey, svc ServiceServer) *SignService {
return &SignService{
key: key,
sigSvc: util.NewUnarySignService(key),
svc: svc,
}
}
func (s *getStreamSigner) Send(resp *object.GetResponse) error {
return s.respWriter(resp)
}
func (s *SignService) Get(req *object.GetRequest, stream GetObjectStream) error {
respWriter, err := s.sigSvc.HandleServerStreamRequest_(req,
func(resp util.ResponseMessage) error {
return stream.Send(resp.(*object.GetResponse))
},
)
if err != nil {
return err
}
return s.svc.Get(req, &getStreamSigner{
ServerStream: stream,
respWriter: respWriter,
})
}
func (s *putStreamSigner) Send(req *object.PutRequest) error {
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")
}
return r.(*object.PutResponse), 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{
stream: s.sigSvc.CreateRequestStreamer(
func(req interface{}) error {
return stream.Send(req.(*object.PutRequest))
},
func() (util.ResponseMessage, error) {
return stream.CloseAndRecv()
},
),
}, nil
}
func (s *SignService) Head(ctx context.Context, req *object.HeadRequest) (*object.HeadResponse, error) {
resp, err := s.sigSvc.HandleUnaryRequest(ctx, req,
func(ctx context.Context, req interface{}) (util.ResponseMessage, 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.sigSvc.HandleServerStreamRequest(ctx, req,
func(ctx context.Context, req interface{}) (util.ResponseMessageReader, error) {
stream, err := s.svc.Search(ctx, req.(*object.SearchRequest))
if err != nil {
return nil, err
}
return func() (util.ResponseMessage, 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.sigSvc.HandleUnaryRequest(ctx, req,
func(ctx context.Context, req interface{}) (util.ResponseMessage, 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.sigSvc.HandleServerStreamRequest(ctx, req,
func(ctx context.Context, req interface{}) (util.ResponseMessageReader, error) {
stream, err := s.svc.GetRange(ctx, req.(*object.GetRangeRequest))
if err != nil {
return nil, err
}
return func() (util.ResponseMessage, 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.sigSvc.HandleUnaryRequest(ctx, req,
func(ctx context.Context, req interface{}) (util.ResponseMessage, error) {
return s.svc.GetRangeHash(ctx, req.(*object.GetRangeHashRequest))
},
)
if err != nil {
return nil, err
}
return resp.(*object.GetRangeHashResponse), nil
}