frostfs-node/pkg/services/object/get/v2/util.go

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package getsvc
import (
"crypto/sha256"
"hash"
"github.com/nspcc-dev/neofs-api-go/pkg"
"github.com/nspcc-dev/neofs-api-go/pkg/client"
objectSDK "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"
"github.com/nspcc-dev/neofs-node/pkg/core/object"
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/neofs-node/pkg/services/object/util"
"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(objectSDK.NewAddressFromV2(body.GetAddress()))
p.WithRawFlag(body.GetRaw())
p.SetRemoteCallOptions(remoteCallOptionsFromMeta(meta)...)
p.SetObjectWriter(&streamObjectWriter{stream})
p.SetCommonParameters(new(util.CommonPrm).
WithLocalOnly(meta.GetTTL() <= 1),
)
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(objectSDK.NewAddressFromV2(body.GetAddress()))
p.WithRawFlag(body.GetRaw())
p.SetRemoteCallOptions(remoteCallOptionsFromMeta(meta)...)
p.SetChunkWriter(&streamObjectRangeWriter{stream})
p.SetRange(objectSDK.NewRangeFromV2(body.GetRange()))
p.SetCommonParameters(commonParameters(meta))
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(objectSDK.NewAddressFromV2(body.GetAddress()))
p.SetRemoteCallOptions(remoteCallOptionsFromMeta(meta)...)
p.SetCommonParameters(commonParameters(meta))
rngsV2 := body.GetRanges()
rngs := make([]*objectSDK.Range, 0, len(rngsV2))
for i := range rngsV2 {
rngs = append(rngs, objectSDK.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
}
type headResponseWriter struct {
mainOnly bool
body *objectV2.HeadResponseBody
}
func (w *headResponseWriter) WriteHeader(hdr *object.Object) error {
if w.mainOnly {
w.body.SetHeaderPart(toShortObjectHeader(hdr))
} else {
w.body.SetHeaderPart(toFullObjectHeader(hdr))
}
return nil
}
func (s *Service) toHeadPrm(req *objectV2.HeadRequest, resp *objectV2.HeadResponse) (*getsvc.HeadPrm, error) {
meta := req.GetMetaHeader()
key, err := s.keyStorage.GetKey(token.NewSessionTokenFromV2(meta.GetSessionToken()))
if err != nil {
return nil, err
}
p := new(getsvc.HeadPrm)
p.SetPrivateKey(key)
body := req.GetBody()
p.WithAddress(objectSDK.NewAddressFromV2(body.GetAddress()))
p.WithRawFlag(body.GetRaw())
p.SetRemoteCallOptions(remoteCallOptionsFromMeta(meta)...)
p.SetHeaderWriter(&headResponseWriter{
mainOnly: body.GetMainOnly(),
body: resp.GetBody(),
})
p.SetCommonParameters(commonParameters(meta))
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 commonParameters(meta *session.RequestMetaHeader) *util.CommonPrm {
return new(util.CommonPrm).
WithLocalOnly(meta.GetTTL() <= 1)
}
func splitInfoResponse(info *objectSDK.SplitInfo) *objectV2.GetResponse {
resp := new(objectV2.GetResponse)
body := new(objectV2.GetResponseBody)
resp.SetBody(body)
body.SetObjectPart(info.ToV2())
return resp
}
func splitInfoRangeResponse(info *objectSDK.SplitInfo) *objectV2.GetRangeResponse {
resp := new(objectV2.GetRangeResponse)
body := new(objectV2.GetRangeResponseBody)
resp.SetBody(body)
body.SetRangePart(info.ToV2())
return resp
}
func setSplitInfoHeadResponse(info *objectSDK.SplitInfo, resp *objectV2.HeadResponse) {
resp.GetBody().SetHeaderPart(info.ToV2())
}
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
}
func toFullObjectHeader(hdr *object.Object) objectV2.GetHeaderPart {
obj := hdr.ToV2()
hs := new(objectV2.HeaderWithSignature)
hs.SetHeader(obj.GetHeader())
hs.SetSignature(obj.GetSignature())
return hs
}
func toShortObjectHeader(hdr *object.Object) objectV2.GetHeaderPart {
hdrV2 := hdr.ToV2().GetHeader()
sh := new(objectV2.ShortHeader)
sh.SetOwnerID(hdrV2.GetOwnerID())
sh.SetCreationEpoch(hdrV2.GetCreationEpoch())
sh.SetPayloadLength(hdrV2.GetPayloadLength())
sh.SetVersion(hdrV2.GetVersion())
sh.SetObjectType(hdrV2.GetObjectType())
return sh
}