[#13] services/object: Implement GetRange handlers

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2020-08-25 18:57:57 +03:00 committed by Alex Vanin
parent d90f53d311
commit 652f64ae85
2 changed files with 65 additions and 4 deletions

View file

@ -59,6 +59,12 @@ type putStreamer struct {
metaHdr *session.ResponseMetaHeader
}
type rangeStreamer struct {
bodyStreamer GetRangeObjectBodyStreamer
metaHdr *session.ResponseMetaHeader
}
// NewExecutionService wraps ServiceExecutor and returns Object Service interface.
//
// Passed meta header is attached to all responses.
@ -156,8 +162,29 @@ func (*executorSvc) Delete(context.Context, *object.DeleteRequest) (*object.Dele
panic("implement me")
}
func (*executorSvc) GetRange(context.Context, *object.GetRangeRequest) (object.GetRangeObjectStreamer, error) {
panic("implement me")
func (s *rangeStreamer) Recv() (*object.GetRangeResponse, error) {
body, err := s.bodyStreamer.Recv()
if err != nil {
return nil, errors.Wrap(err, "could not receive response body")
}
resp := new(object.GetRangeResponse)
resp.SetBody(body)
resp.SetMetaHeader(s.metaHdr)
return resp, nil
}
func (s *executorSvc) GetRange(ctx context.Context, req *object.GetRangeRequest) (object.GetRangeObjectStreamer, error) {
bodyStream, err := s.exec.GetRange(ctx, req.GetBody())
if err != nil {
return nil, errors.Wrap(err, "could not execute GetRange request")
}
return &rangeStreamer{
bodyStreamer: bodyStream,
metaHdr: s.metaHeader,
}, nil
}
func (*executorSvc) GetRangeHash(context.Context, *object.GetRangeHashRequest) (*object.GetRangeHashResponse, error) {

View file

@ -16,6 +16,7 @@ type signService struct {
searchSigService *util.UnarySignService
getSigService *util.UnarySignService
putService object.Service
rangeSigService *util.UnarySignService
}
type searchStreamSigner struct {
@ -36,6 +37,12 @@ type putStreamSigner struct {
stream object.PutObjectStreamer
}
type getRangeStreamSigner struct {
key *ecdsa.PrivateKey
stream object.GetRangeObjectStreamer
}
func NewSignService(key *ecdsa.PrivateKey, svc object.Service) object.Service {
return &signService{
key: key,
@ -52,6 +59,12 @@ func NewSignService(key *ecdsa.PrivateKey, svc object.Service) object.Service {
},
),
putService: svc,
rangeSigService: util.NewUnarySignService(
nil, // private key is not needed because service returns stream
func(ctx context.Context, req interface{}) (interface{}, error) {
return svc.GetRange(ctx, req.(*object.GetRangeRequest))
},
),
}
}
@ -146,8 +159,29 @@ func (s *signService) Delete(context.Context, *object.DeleteRequest) (*object.De
panic("implement me")
}
func (s *signService) GetRange(context.Context, *object.GetRangeRequest) (object.GetRangeObjectStreamer, error) {
panic("implement me")
func (s *getRangeStreamSigner) Recv() (*object.GetRangeResponse, error) {
r, err := s.stream.Recv()
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) GetRange(ctx context.Context, req *object.GetRangeRequest) (object.GetRangeObjectStreamer, error) {
resp, err := s.rangeSigService.HandleServerStreamRequest(ctx, req)
if err != nil {
return nil, err
}
return &getRangeStreamSigner{
key: s.key,
stream: resp.(object.GetRangeObjectStreamer),
}, nil
}
func (s *signService) GetRangeHash(context.Context, *object.GetRangeHashRequest) (*object.GetRangeHashResponse, error) {