mirror of
https://github.com/wealdtech/ethdo.git
synced 2026-01-08 21:48:05 -05:00
78 lines
2.8 KiB
Go
78 lines
2.8 KiB
Go
// Copyright © 2019, 2020 Weald Technology Trading
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
|
|
"github.com/spf13/cobra"
|
|
"github.com/spf13/viper"
|
|
bip39 "github.com/tyler-smith/go-bip39"
|
|
e2wtypes "github.com/wealdtech/go-eth2-wallet-types/v2"
|
|
)
|
|
|
|
var walletSeedCmd = &cobra.Command{
|
|
Use: "seed",
|
|
Short: "Display the seed of a wallet",
|
|
Long: `Display the seed for an hierarchical deterministic wallet. For example:
|
|
|
|
ethdo wallet seed --wallet=primary
|
|
|
|
In quiet mode this will return 0 if the wallet is a hierarchical deterministic wallet, otherwise 1.`,
|
|
Run: func(cmd *cobra.Command, args []string) {
|
|
ctx, cancel := context.WithTimeout(context.Background(), viper.GetDuration("timeout"))
|
|
defer cancel()
|
|
|
|
assert(viper.GetString("remote") == "", "wallet seed not available with remote wallets")
|
|
assert(viper.GetString("wallet") != "", "--wallet is required")
|
|
assert(getWalletPassphrase() != "", "--walletpassphrase is required")
|
|
|
|
wallet, err := walletFromPath(viper.GetString("wallet"))
|
|
errCheck(err, "Failed to access wallet")
|
|
_, ok := wallet.(e2wtypes.WalletKeyProvider)
|
|
assert(ok, fmt.Sprintf("wallets of type %q do not have a seed", wallet.Type()))
|
|
|
|
locker, isLocker := wallet.(e2wtypes.WalletLocker)
|
|
if isLocker {
|
|
errCheck(locker.Unlock(ctx, []byte(getWalletPassphrase())), "Failed to unlock wallet")
|
|
}
|
|
keyProvider, isKeyProvider := wallet.(e2wtypes.WalletKeyProvider)
|
|
assert(isKeyProvider, "Wallet does not provide key")
|
|
seed, err := keyProvider.Key(ctx)
|
|
errCheck(err, "Failed to obtain wallet key")
|
|
outputIf(debug, fmt.Sprintf("Seed is %#x", seed))
|
|
seedStr, err := bip39.NewMnemonic(seed)
|
|
errCheck(err, "Failed to generate seed mnemonic")
|
|
// Re-read mnemonimc to ensure correctness.
|
|
recalcSeed, err := bip39.MnemonicToByteArray(seedStr)
|
|
// Drop checksum (last byte).
|
|
errCheck(err, "Failed to recalculate seed")
|
|
recalcSeed = recalcSeed[:len(recalcSeed)-1]
|
|
outputIf(debug, fmt.Sprintf("Recalc seed is %#x", recalcSeed))
|
|
errCheck(err, "Failed to recalculate seed mnemonic")
|
|
assert(bytes.Equal(recalcSeed, seed), "Generated invalid mnemonic")
|
|
|
|
outputIf(!quiet, seedStr)
|
|
os.Exit(_exitSuccess)
|
|
},
|
|
}
|
|
|
|
func init() {
|
|
walletCmd.AddCommand(walletSeedCmd)
|
|
walletFlags(walletSeedCmd)
|
|
}
|