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// Copyright 2017 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"encoding/hex"
"fmt"
"io/ioutil"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/crypto"
"gopkg.in/urfave/cli.v1"
)
type outputInspect struct {
Address string
PublicKey string
PrivateKey string
}
var commandInspect = cli.Command{
Name: "inspect",
Usage: "inspect a keyfile",
ArgsUsage: "<keyfile>",
Description: `
Print various information about the keyfile.
Private key information can be printed by using the --private flag;
make sure to use this feature with great caution!`,
Flags: []cli.Flag{
passphraseFlag,
jsonFlag,
cli.BoolFlag{
Name: "private",
Usage: "include the private key in the output",
},
},
Action: func(ctx *cli.Context) error {
keyfilepath := ctx.Args().First()
// Read key from file.
keyjson, err := ioutil.ReadFile(keyfilepath)
if err != nil {
utils.Fatalf("Failed to read the keyfile at '%s': %v", keyfilepath, err)
}
// Decrypt key with passphrase.
passphrase := getPassphrase(ctx)
key, err := keystore.DecryptKey(keyjson, passphrase)
if err != nil {
utils.Fatalf("Error decrypting key: %v", err)
}
// Output all relevant information we can retrieve.
showPrivate := ctx.Bool("private")
out := outputInspect{
Address: key.Address.Hex(),
PublicKey: hex.EncodeToString(
crypto.FromECDSAPub(&key.PrivateKey.PublicKey)),
}
if showPrivate {
out.PrivateKey = hex.EncodeToString(crypto.FromECDSA(key.PrivateKey))
}
if ctx.Bool(jsonFlag.Name) {
mustPrintJSON(out)
} else {
fmt.Println("Address: ", out.Address)
fmt.Println("Public key: ", out.PublicKey)
if showPrivate {
fmt.Println("Private key: ", out.PrivateKey)
}
}
return nil
},
}
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