cbpasswd

#!/usr/bin/env python

import getpass
import argparse
import sys

import lib.config as config
import lib.crypto as crypto
from lib.generate import backup
import lib.log as log

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description='Change master password')
    parser.add_argument('-v', '--version', action='version', version='Cryptobox ' + config.version)
    parser.add_argument('-V', '--verbose', action='store_true', help='enable verbose mode')
    parser.add_argument('-c', '--config', action='store', help='use specified config')
    defines = config.read(parser.parse_args())

    password = getpass.getpass('Current password: ')

    new_password = getpass.getpass('New password: ')
    new_password2 = getpass.getpass('Retype new password: ')

    if new_password != new_password2:
        log.e("Your passwords don't match!")
        sys.exit(0)

    try:
        backup(defines['backup.path'], defines['backup.files'])
    except:
        ans = log.yn("Couldn't perform a backup, continue?")

        if not ans in ['Y', 'y']:
            sys.exit(0)

    db_conf = crypto.read_db_conf(defines['path.db_conf'], config.format_version)
    plaintext = crypto.dec_db(db_conf, password, defines['path.db_cipher'], defines['path.db_hmac'])
    crypto.enc_plaintext(db_conf, new_password, plaintext, defines['path.db_cipher'], defines['path.db_hmac'])