mirror of
https://github.com/wealdtech/ethdo.git
synced 2026-01-07 21:24:01 -05:00
118 lines
2.9 KiB
Go
118 lines
2.9 KiB
Go
// Copyright © 2020 Weald Technology Trading
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package util
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import (
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"context"
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"errors"
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"github.com/google/uuid"
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e2types "github.com/wealdtech/go-eth2-types/v2"
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)
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// ScratchAccount is an account that exists temporarily.
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type ScratchAccount struct {
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id uuid.UUID
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privKey e2types.PrivateKey
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pubKey e2types.PublicKey
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unlocked bool
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}
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// NewScratchAccount creates a new local account.
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func NewScratchAccount(privKey []byte, pubKey []byte) (*ScratchAccount, error) {
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if len(privKey) > 0 {
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return newScratchAccountFromPrivKey(privKey)
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}
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return newScratchAccountFromPubKey(pubKey)
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}
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func newScratchAccountFromPrivKey(privKey []byte) (*ScratchAccount, error) {
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key, err := e2types.BLSPrivateKeyFromBytes(privKey)
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if err != nil {
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return nil, err
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}
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return &ScratchAccount{
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id: uuid.New(),
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privKey: key,
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pubKey: key.PublicKey(),
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}, nil
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}
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func newScratchAccountFromPubKey(pubKey []byte) (*ScratchAccount, error) {
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key, err := e2types.BLSPublicKeyFromBytes(pubKey)
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if err != nil {
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return nil, err
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}
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return &ScratchAccount{
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id: uuid.New(),
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pubKey: key,
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}, nil
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}
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// ID returns the account ID.
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func (a *ScratchAccount) ID() uuid.UUID {
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return a.id
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}
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// Name returns the account name.
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func (a *ScratchAccount) Name() string {
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return "scratch"
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}
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// PublicKey returns the account public key.
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func (a *ScratchAccount) PublicKey() e2types.PublicKey {
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return a.pubKey
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}
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// PrivateKey returns the account private key.
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func (a *ScratchAccount) PrivateKey(_ context.Context) (e2types.PrivateKey, error) {
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if a.privKey == nil {
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return nil, errors.New("no private key available")
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}
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return a.privKey, nil
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}
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// Path returns the account path.
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func (a *ScratchAccount) Path() string {
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return ""
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}
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// Lock locks the account.
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func (a *ScratchAccount) Lock(_ context.Context) error {
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a.unlocked = false
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return nil
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}
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// Unlock unlocks the account.
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func (a *ScratchAccount) Unlock(_ context.Context, _ []byte) error {
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a.unlocked = true
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return nil
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}
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// IsUnlocked returns true if the account is unlocked.
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func (a *ScratchAccount) IsUnlocked(_ context.Context) (bool, error) {
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return a.unlocked, nil
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}
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// Sign signs data with the account's private key.
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func (a *ScratchAccount) Sign(_ context.Context, data []byte) (e2types.Signature, error) {
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if !a.unlocked {
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return nil, errors.New("locked")
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}
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if a.privKey == nil {
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return nil, errors.New("no private key")
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}
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return a.privKey.Sign(data), nil
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}
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