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loader.go
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loader.go
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// Copyright (c) 2022 Gobalsky Labs Limited
//
// Use of this software is governed by the Business Source License included
// in the LICENSE.VEGA file and at https://www.mariadb.com/bsl11.
//
// Change Date: 18 months from the later of the date of the first publicly
// available Distribution of this version of the repository, and 25 June 2022.
//
// On the date above, in accordance with the Business Source License, use
// of this software will be governed by version 3 or later of the GNU General
// Public License.
package keystore
import (
"fmt"
"io/fs"
"os"
"path/filepath"
vgfs "code.vegaprotocol.io/vega/libs/fs"
"code.vegaprotocol.io/vega/paths"
"github.com/ethereum/go-ethereum/accounts/keystore"
)
type WalletLoader struct {
walletHome string
}
func InitialiseWalletLoader(vegaPaths paths.Paths) (*WalletLoader, error) {
walletHome, err := vegaPaths.CreateDataDirFor(paths.EthereumNodeWalletsDataHome)
if err != nil {
return nil, fmt.Errorf("couldn't get the directory path for %s: %w", paths.EthereumNodeWalletsDataHome, err)
}
return &WalletLoader{
walletHome: walletHome,
}, nil
}
func (l *WalletLoader) Generate(passphrase string) (*Wallet, map[string]string, error) {
ks := keystore.NewKeyStore(l.walletHome, keystore.StandardScryptN, keystore.StandardScryptP)
acc, err := ks.NewAccount(passphrase)
if err != nil {
return nil, nil, err
}
_, fileName := filepath.Split(acc.URL.Path)
content, err := vgfs.ReadFile(acc.URL.Path)
if err != nil {
return nil, nil, fmt.Errorf("couldn't read file %s: %w", acc.URL.Path, err)
}
w, err := newWallet(l, fileName, passphrase, content)
if err != nil {
return nil, nil, fmt.Errorf("couldn't create wallet: %w", err)
}
data := map[string]string{
"walletFilePath": acc.URL.Path,
"ethereumAddress": w.address.Hex(),
}
return w, data, nil
}
func (l *WalletLoader) Load(walletName, passphrase string) (*Wallet, error) {
data, err := fs.ReadFile(os.DirFS(l.walletHome), walletName)
if err != nil {
return nil, fmt.Errorf("couldn't read wallet file: %v", err)
}
w, err := newWallet(l, walletName, passphrase, data)
if err != nil {
return nil, err
}
return w, nil
}
func (l *WalletLoader) Import(sourceFilePath, passphrase string) (*Wallet, map[string]string, error) {
content, err := vgfs.ReadFile(sourceFilePath)
if err != nil {
return nil, nil, fmt.Errorf("couldn't read file %s: %w", sourceFilePath, err)
}
_, fileName := filepath.Split(sourceFilePath)
walletFilePath := filepath.Join(l.walletHome, fileName)
err = vgfs.WriteFile(walletFilePath, content)
if err != nil {
return nil, nil, fmt.Errorf("couldn't write file %s: %w", walletFilePath, err)
}
w, err := newWallet(l, fileName, passphrase, content)
if err != nil {
return nil, nil, fmt.Errorf("couldn't create wallet: %w", err)
}
data := map[string]string{
"walletFilePath": walletFilePath,
"ethereumAddress": w.address.Hex(),
}
return w, data, nil
}