laconicd-deprecated/cmd/emintcli/export.go
Austin Abell ce8a94a98e
Cosmos PR changes (#158)
* Changes necessary for enforced custom account encoding/decoding and keyring keybase changes

* updates cosmos dependency and fixes inconsistency in gas usage for simulated/real txs

* Update PR changes

* Remove unused password prompt when using OS keyring

* Update from changes to sdk

* Update to merged PR commit :the_horns:

* updated code to handle keyring backend options

* update documentation and replace cosmos-sdk with fork (temporarily)

* update cosmos dependency from fork

* update documentation
2019-12-13 14:50:19 -05:00

75 lines
1.9 KiB
Go

package main
import (
"bufio"
"fmt"
"strings"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"github.com/ethereum/go-ethereum/common/hexutil"
ethcrypto "github.com/ethereum/go-ethereum/crypto"
"github.com/cosmos/cosmos-sdk/client/flags"
"github.com/cosmos/cosmos-sdk/client/input"
clientkeys "github.com/cosmos/cosmos-sdk/client/keys"
emintcrypto "github.com/cosmos/ethermint/crypto"
)
func exportEthKeyCommand() *cobra.Command {
cmd := &cobra.Command{
Use: "export-eth-key <name>",
Short: "Export an Ethereum private key",
Long: `Export an Ethereum private key unencrypted to use in dev tooling **UNSAFE**`,
Args: cobra.ExactArgs(1),
RunE: runExportCmd,
}
return cmd
}
func runExportCmd(cmd *cobra.Command, args []string) error {
kb, err := clientkeys.NewKeyringFromHomeFlag(cmd.InOrStdin())
if err != nil {
return err
}
buf := bufio.NewReader(cmd.InOrStdin())
decryptPassword := ""
conf := true
keyringBackend := viper.GetString(flags.FlagKeyringBackend)
switch keyringBackend {
case flags.KeyringBackendFile:
decryptPassword, err = input.GetPassword(
"**WARNING this is an unsafe way to export your unencrypted private key**\nEnter key password:",
buf)
case flags.KeyringBackendOS:
conf, err = input.GetConfirmation(
"**WARNING** this is an unsafe way to export your unencrypted private key, are you sure?",
buf)
}
if err != nil || !conf {
return err
}
// Exports private key from keybase using password
privKey, err := kb.ExportPrivateKeyObject(args[0], decryptPassword)
if err != nil {
return err
}
// Converts key to Ethermint secp256 implementation
emintKey, ok := privKey.(emintcrypto.PrivKeySecp256k1)
if !ok {
return fmt.Errorf("invalid private key type, must be Ethereum key: %T", privKey)
}
// Formats key for output
privB := ethcrypto.FromECDSA(emintKey.ToECDSA())
keyS := strings.ToUpper(hexutil.Encode(privB)[2:])
fmt.Println(keyS)
return nil
}