frostfs-node/pkg/morph/client/container/wrapper/eacl.go

75 lines
2 KiB
Go
Raw Normal View History

2020-07-24 13:54:03 +00:00
package wrapper
import (
"github.com/nspcc-dev/neofs-api-go/pkg"
"github.com/nspcc-dev/neofs-api-go/pkg/acl/eacl"
containerSDK "github.com/nspcc-dev/neofs-api-go/pkg/container"
"github.com/nspcc-dev/neofs-node/pkg/core/container"
client "github.com/nspcc-dev/neofs-node/pkg/morph/client/container"
"github.com/pkg/errors"
)
2020-07-24 13:54:03 +00:00
// GetEACL reads the extended ACL table from NeoFS system
// through Container contract call.
func (w *Wrapper) GetEACL(cid *containerSDK.ID) (*eacl.Table, *pkg.Signature, error) {
if cid == nil {
return nil, nil, errNilArgument
}
args := client.EACLArgs{}
v2 := cid.ToV2()
if v2 == nil {
return nil, nil, errUnsupported // use other major version if there any
}
args.SetCID(v2.GetValue())
rpcAnswer, err := w.client.EACL(args)
if err != nil {
return nil, nil, err
}
// Client may not return errors if the table is missing, so check this case additionally.
// The absence of a signature in the response can be taken as an eACL absence criterion,
// since unsigned table cannot be approved in the storage by design.
sig := rpcAnswer.Signature()
if len(sig) == 0 {
return nil, nil, container.ErrEACLNotFound
}
tableSignature := pkg.NewSignature()
tableSignature.SetKey(rpcAnswer.PublicKey())
tableSignature.SetSign(sig)
table := eacl.NewTable()
if err = table.Unmarshal(rpcAnswer.EACL()); err != nil {
// use other major version if there any
return nil, nil, err
}
return table, tableSignature, nil
2020-07-24 13:54:03 +00:00
}
// PutEACL saves the extended ACL table in NeoFS system
// through Container contract call.
//
// Returns any error encountered that caused the saving to interrupt.
func (w *Wrapper) PutEACL(table *eacl.Table, signature []byte) error {
if table == nil || len(signature) == 0 {
return errNilArgument
}
args := client.SetEACLArgs{}
args.SetSignature(signature)
data, err := table.Marshal()
if err != nil {
return errors.Wrap(err, "can't marshal eacl table")
}
args.SetEACL(data)
return w.client.SetEACL(args)
2020-07-24 13:54:03 +00:00
}