yubioath-flutter/yubioath/gui/unlocker.py
2015-06-10 16:41:52 +02:00

58 lines
2.1 KiB
Python

# Copyright (c) 2014 Yubico AB
# All rights reserved.
#
# This program 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.
#
# 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 General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# Additional permission under GNU GPL version 3 section 7
#
# If you modify this program, or any covered work, by linking or
# combining it with the OpenSSL project's OpenSSL library (or a
# modified version of that library), containing parts covered by the
# terms of the OpenSSL or SSLeay licenses, We grant you additional
# permission to convey the resulting work. Corresponding Source for a
# non-source form of such a combination shall include the source code
# for the parts of OpenSSL used as well as that of the covered work.
from getpass import getpass
from yubioath.core.exc import CardError
import sys
class CliUnlocker(object):
def __init__(self, keystore, save=False):
self.keystore = keystore
self._save = save
def __call__(self, device):
key = self.keystore.get(device.id)
if key:
try:
device.unlock(key)
except CardError:
sys.stderr.write('Incorrect password from file.\n')
self.keystore.delete(device.id)
while device.locked:
pw = getpass('Password: ')
key = device.calculate_key(pw)
try:
device.unlock(key)
if self._save:
self.keystore.put(device.id, key)
sys.stderr.write('Password saved to %s\n' %
self.keystore.fname)
except CardError:
sys.stderr.write('Incorrect password!\n')