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package main
import (
"fmt"
"os"
"os/exec"
"strings"
"golang.org/x/crypto/ssh/terminal"
"github.com/rfjakob/gocryptfs/internal/toggledlog"
)
func readPasswordTwice(extpass string) string {
if extpass == "" {
fmt.Fprintf(os.Stderr, "Password: ")
p1 := readPassword("")
fmt.Fprintf(os.Stderr, "Repeat: ")
p2 := readPassword("")
if p1 != p2 {
toggledlog.Fatal.Println(colorRed + "Passwords do not match" + colorReset)
os.Exit(ERREXIT_PASSWORD)
}
return p1
} else {
return readPassword(extpass)
}
}
// readPassword - get password from terminal
// or from the "extpass" program
func readPassword(extpass string) string {
var password string
var err error
var output []byte
if extpass != "" {
parts := strings.Split(extpass, " ")
cmd := exec.Command(parts[0], parts[1:]...)
cmd.Stderr = os.Stderr
output, err = cmd.Output()
if err != nil {
toggledlog.Fatal.Printf(colorRed+"extpass program returned error: %v\n"+colorReset, err)
os.Exit(ERREXIT_PASSWORD)
}
// Trim trailing newline like terminal.ReadPassword() does
if output[len(output)-1] == '\n' {
output = output[:len(output)-1]
}
} else {
fd := int(os.Stdin.Fd())
output, err = terminal.ReadPassword(fd)
if err != nil {
toggledlog.Fatal.Printf(colorRed+"Could not read password from terminal: %v\n"+colorReset, err)
os.Exit(ERREXIT_PASSWORD)
}
fmt.Fprintf(os.Stderr, "\n")
}
password = string(output)
if password == "" {
toggledlog.Fatal.Printf(colorRed + "Password is empty\n" + colorReset)
os.Exit(ERREXIT_PASSWORD)
}
return password
}
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