mirror of https://github.com/poanetwork/gecko.git
53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package avm
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import (
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"github.com/ava-labs/gecko/database"
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"github.com/ava-labs/gecko/ids"
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"github.com/ava-labs/gecko/utils/crypto"
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)
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var addresses = ids.Empty
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type userState struct{ vm *VM }
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func (s *userState) SetAddresses(db database.Database, addrs []ids.ShortID) error {
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bytes, err := s.vm.codec.Marshal(addrs)
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if err != nil {
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return err
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}
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return db.Put(addresses.Bytes(), bytes)
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}
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func (s *userState) Addresses(db database.Database) ([]ids.ShortID, error) {
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bytes, err := db.Get(addresses.Bytes())
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if err != nil {
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return nil, err
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}
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addresses := []ids.ShortID{}
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if err := s.vm.codec.Unmarshal(bytes, &addresses); err != nil {
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return nil, err
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}
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return addresses, nil
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}
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func (s *userState) SetKey(db database.Database, sk *crypto.PrivateKeySECP256K1R) error {
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return db.Put(sk.PublicKey().Address().Bytes(), sk.Bytes())
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}
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func (s *userState) Key(db database.Database, address ids.ShortID) (*crypto.PrivateKeySECP256K1R, error) {
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factory := crypto.FactorySECP256K1R{}
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bytes, err := db.Get(address.Bytes())
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if err != nil {
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return nil, err
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}
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sk, err := factory.ToPrivateKey(bytes)
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if err != nil {
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return nil, err
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}
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return sk.(*crypto.PrivateKeySECP256K1R), nil
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}
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