frostfs-node/pkg/services/object/get/v2/util.go
Leonard Lyubich 7e56427534 [#235] object/getrangehash: Implement new service processing
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00

152 lines
3.9 KiB
Go

package getsvc
import (
"crypto/sha256"
"hash"
"github.com/nspcc-dev/neofs-api-go/pkg"
"github.com/nspcc-dev/neofs-api-go/pkg/client"
"github.com/nspcc-dev/neofs-api-go/pkg/object"
"github.com/nspcc-dev/neofs-api-go/pkg/token"
objectV2 "github.com/nspcc-dev/neofs-api-go/v2/object"
"github.com/nspcc-dev/neofs-api-go/v2/refs"
"github.com/nspcc-dev/neofs-api-go/v2/session"
objectSvc "github.com/nspcc-dev/neofs-node/pkg/services/object"
getsvc "github.com/nspcc-dev/neofs-node/pkg/services/object/get"
"github.com/nspcc-dev/tzhash/tz"
"github.com/pkg/errors"
)
func (s *Service) toPrm(req *objectV2.GetRequest, stream objectSvc.GetObjectStream) (*getsvc.Prm, error) {
meta := req.GetMetaHeader()
key, err := s.keyStorage.GetKey(token.NewSessionTokenFromV2(meta.GetSessionToken()))
if err != nil {
return nil, err
}
p := new(getsvc.Prm)
p.SetPrivateKey(key)
body := req.GetBody()
p.WithAddress(object.NewAddressFromV2(body.GetAddress()))
p.WithRawFlag(body.GetRaw())
p.SetRemoteCallOptions(remoteCallOptionsFromMeta(meta)...)
p.SetObjectWriter(&streamObjectWriter{stream})
return p, nil
}
func (s *Service) toRangePrm(req *objectV2.GetRangeRequest, stream objectSvc.GetObjectRangeStream) (*getsvc.RangePrm, error) {
meta := req.GetMetaHeader()
key, err := s.keyStorage.GetKey(token.NewSessionTokenFromV2(meta.GetSessionToken()))
if err != nil {
return nil, err
}
p := new(getsvc.RangePrm)
p.SetPrivateKey(key)
body := req.GetBody()
p.WithAddress(object.NewAddressFromV2(body.GetAddress()))
p.WithRawFlag(body.GetRaw())
p.SetRemoteCallOptions(remoteCallOptionsFromMeta(meta)...)
p.SetChunkWriter(&streamObjectRangeWriter{stream})
p.SetRange(object.NewRangeFromV2(body.GetRange()))
return p, nil
}
func (s *Service) toHashRangePrm(req *objectV2.GetRangeHashRequest) (*getsvc.RangeHashPrm, error) {
meta := req.GetMetaHeader()
key, err := s.keyStorage.GetKey(token.NewSessionTokenFromV2(meta.GetSessionToken()))
if err != nil {
return nil, err
}
p := new(getsvc.RangeHashPrm)
p.SetPrivateKey(key)
body := req.GetBody()
p.WithAddress(object.NewAddressFromV2(body.GetAddress()))
p.SetRemoteCallOptions(remoteCallOptionsFromMeta(meta)...)
rngsV2 := body.GetRanges()
rngs := make([]*object.Range, 0, len(rngsV2))
for i := range rngsV2 {
rngs = append(rngs, object.NewRangeFromV2(rngsV2[i]))
}
p.SetRangeList(rngs)
switch t := body.GetType(); t {
default:
return nil, errors.Errorf("unknown checksum type %v", t)
case refs.SHA256:
p.SetHashGenerator(func() hash.Hash {
return sha256.New()
})
case refs.TillichZemor:
p.SetHashGenerator(func() hash.Hash {
return tz.New()
})
}
return p, nil
}
// can be shared accross all services
func remoteCallOptionsFromMeta(meta *session.RequestMetaHeader) []client.CallOption {
xHdrs := meta.GetXHeaders()
opts := make([]client.CallOption, 0, 3+len(xHdrs))
opts = append(opts,
client.WithBearer(token.NewBearerTokenFromV2(meta.GetBearerToken())),
client.WithSession(token.NewSessionTokenFromV2(meta.GetSessionToken())),
client.WithTTL(meta.GetTTL()-1),
)
for i := range xHdrs {
opts = append(opts, client.WithXHeader(pkg.NewXHeaderFromV2(xHdrs[i])))
}
return opts
}
func splitInfoResponse(info *object.SplitInfo) *objectV2.GetResponse {
resp := new(objectV2.GetResponse)
body := new(objectV2.GetResponseBody)
resp.SetBody(body)
body.SetObjectPart(info.ToV2())
return resp
}
func splitInfoRangeResponse(info *object.SplitInfo) *objectV2.GetRangeResponse {
resp := new(objectV2.GetRangeResponse)
body := new(objectV2.GetRangeResponseBody)
resp.SetBody(body)
body.SetRangePart(info.ToV2())
return resp
}
func toHashResponse(typ refs.ChecksumType, res *getsvc.RangeHashRes) *objectV2.GetRangeHashResponse {
resp := new(objectV2.GetRangeHashResponse)
body := new(objectV2.GetRangeHashResponseBody)
resp.SetBody(body)
body.SetType(typ)
body.SetHashList(res.Hashes())
return resp
}