88 lines
2.0 KiB
Go
88 lines
2.0 KiB
Go
|
package client
|
||
|
|
|
||
|
|
import (
|
||
|
|
"bufio"
|
||
|
|
"fmt"
|
||
|
|
"os"
|
||
|
|
"strings"
|
||
|
|
|
||
|
|
"github.com/bgentry/speakeasy"
|
||
|
|
"github.com/pkg/errors"
|
||
|
|
isatty "github.com/tendermint/vendor-bak/github.com/mattn/go-isatty"
|
||
|
|
)
|
||
|
|
|
||
|
|
// MinPassLength is the minimum acceptable password length
|
||
|
|
const MinPassLength = 8
|
||
|
|
|
||
|
|
// if we read from non-tty, we just need to init the buffer reader once,
|
||
|
|
// in case we try to read multiple passwords (eg. update)
|
||
|
|
var buf *bufio.Reader
|
||
|
|
|
||
|
|
// GetPassword will prompt for a password one-time (to sign a tx)
|
||
|
|
// It enforces the password length
|
||
|
|
func GetPassword(prompt string) (pass string, err error) {
|
||
|
|
if inputIsTty() {
|
||
|
|
pass, err = speakeasy.Ask(prompt)
|
||
|
|
} else {
|
||
|
|
pass, err = stdinPassword()
|
||
|
|
}
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
if len(pass) < MinPassLength {
|
||
|
|
return "", errors.Errorf("Password must be at least %d characters", MinPassLength)
|
||
|
|
}
|
||
|
|
return pass, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// GetSeed will request a seed phrase from stdin and trims off
|
||
|
|
// leading/trailing spaces
|
||
|
|
func GetSeed(prompt string) (seed string, err error) {
|
||
|
|
if inputIsTty() {
|
||
|
|
fmt.Println(prompt)
|
||
|
|
}
|
||
|
|
seed, err = stdinPassword()
|
||
|
|
seed = strings.TrimSpace(seed)
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
// GetCheckPassword will prompt for a password twice to verify they
|
||
|
|
// match (for creating a new password).
|
||
|
|
// It enforces the password length. Only parses password once if
|
||
|
|
// input is piped in.
|
||
|
|
func GetCheckPassword(prompt, prompt2 string) (string, error) {
|
||
|
|
// simple read on no-tty
|
||
|
|
if !inputIsTty() {
|
||
|
|
return GetPassword(prompt)
|
||
|
|
}
|
||
|
|
|
||
|
|
// TODO: own function???
|
||
|
|
pass, err := GetPassword(prompt)
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
pass2, err := GetPassword(prompt2)
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
if pass != pass2 {
|
||
|
|
return "", errors.New("Passphrases don't match")
|
||
|
|
}
|
||
|
|
return pass, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func inputIsTty() bool {
|
||
|
|
return isatty.IsTerminal(os.Stdin.Fd()) || isatty.IsCygwinTerminal(os.Stdin.Fd())
|
||
|
|
}
|
||
|
|
|
||
|
|
func stdinPassword() (string, error) {
|
||
|
|
if buf == nil {
|
||
|
|
buf = bufio.NewReader(os.Stdin)
|
||
|
|
}
|
||
|
|
pass, err := buf.ReadString('\n')
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
return strings.TrimSpace(pass), nil
|
||
|
|
}
|