[#57] services/object: Implement private key storage

Implement storage that provides access to local node key and session keys
through session token.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2020-09-29 18:11:20 +03:00 committed by Alex Vanin
parent 2da323c4b9
commit be322835af

View file

@ -0,0 +1,41 @@
package util
import (
"crypto/ecdsa"
"github.com/nspcc-dev/neofs-api-go/pkg/token"
"github.com/nspcc-dev/neofs-node/pkg/services/session/storage"
"github.com/pkg/errors"
)
// KeyStorage represents private key storage of the local node.
type KeyStorage struct {
key *ecdsa.PrivateKey
tokenStore *storage.TokenStore
}
// NewKeyStorage creates, initializes and returns new KeyStorage instance.
func NewKeyStorage(localKey *ecdsa.PrivateKey, tokenStore *storage.TokenStore) *KeyStorage {
return &KeyStorage{
key: localKey,
tokenStore: tokenStore,
}
}
// GetKey returns private key of the node.
//
// If token is not nil, session private key is returned.
// Otherwise, node private key is returned.
func (s *KeyStorage) GetKey(token *token.SessionToken) (*ecdsa.PrivateKey, error) {
if token != nil {
pToken := s.tokenStore.Get(token.OwnerID(), token.ID())
if pToken == nil {
return nil, errors.Wrapf(storage.ErrNotFound, "(%T) could not get session key", s)
}
return pToken.SessionKey(), nil
}
return s.key, nil
}