/
id.go
106 lines (95 loc) · 2.65 KB
/
id.go
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// This file is part of the go-kord library.
//
// Copyright (C) 2018 JAAK MUSIC LTD
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program 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 Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// If you have any questions please contact yo@jaak.io
package cli
import (
"bufio"
"bytes"
"errors"
"fmt"
"os"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/log"
"github.com/moby/moby/pkg/term"
)
func init() {
registerCommand("id", RunID, `
usage: kord id new [options]
Create a new KORD ID.
options:
-k, --keystore <dir> Keystore directory
`[1:])
}
func RunID(ctx *Context) error {
switch {
case ctx.Args.Bool("new"):
return RunIDNew(ctx)
default:
return errors.New("unknown id command")
}
}
func RunIDNew(ctx *Context) error {
log.Info("creating new KORD ID")
passphrase, err := getPassphrase(ctx, true)
if err != nil {
return fmt.Errorf("error reading passphrase: %s", err)
}
ks := keystore.NewKeyStore(
ctx.Args.String("--keystore"),
keystore.StandardScryptN,
keystore.StandardScryptP,
)
account, err := ks.NewAccount(string(passphrase))
if err != nil {
return err
}
fmt.Fprintln(ctx.Stdout, account.Address.Hex())
return nil
}
func getPassphrase(ctx *Context, confirm bool) ([]byte, error) {
if stdin, ok := ctx.Stdin.(*os.File); ok && term.IsTerminal(stdin.Fd()) {
state, err := term.SaveState(stdin.Fd())
if err != nil {
return nil, err
}
term.DisableEcho(stdin.Fd(), state)
defer term.RestoreTerminal(stdin.Fd(), state)
}
stdin := bufio.NewReader(ctx.Stdin)
fmt.Fprint(ctx.Stderr, "Passphrase: ")
passphrase, err := stdin.ReadBytes('\n')
fmt.Fprintln(ctx.Stderr)
if err != nil {
return nil, err
}
passphrase = passphrase[0 : len(passphrase)-1]
if !confirm {
return passphrase, nil
}
fmt.Fprintf(ctx.Stderr, "Repeat passphrase: ")
confirmation, err := stdin.ReadBytes('\n')
fmt.Fprintln(ctx.Stderr)
if err != nil {
return nil, err
}
confirmation = confirmation[0 : len(confirmation)-1]
if !bytes.Equal(passphrase, confirmation) {
return nil, errors.New("The entered passphrases do not match")
}
return passphrase, nil
}