cryptonas/plugins/volume_chpasswd/volume_chpasswd.py

91 lines
3.2 KiB
Python

#
# Copyright 2006 sense.lab e.V.
#
# This file is part of the CryptoBox.
#
# The CryptoBox 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 2 of the License, or
# (at your option) any later version.
#
# The CryptoBox 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 the CryptoBox; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
__revision__ = "$Id$"
import cryptobox.plugins.base
from cryptobox.core.exceptions import *
class volume_chpasswd(cryptobox.plugins.base.CryptoBoxPlugin):
plugin_capabilities = [ "volume" ]
plugin_visibility = [ "properties" ]
request_auth = False
rank = 70
def do_action(self, store=None, old_pw=None, new_pw=None, new_pw2=None):
self.container = self.cbox.get_container(self.device)
if not self.container:
return None
elif store == "change_pw":
return self.__change_password(old_pw, new_pw, new_pw2)
elif not store:
return "volume_chpasswd"
else:
self.cbox.log.info("plugin 'volume_chpasswd' - unknown action: %s" % store)
return "volume_chpasswd"
def get_status(self):
"""chpasswd doesn't give any useful status information, other
than True
"""
return True
def is_useful(self, device):
from cryptobox.core.container import CONTAINERTYPES as cont_types
cont = self.cbox.get_container(device)
if not cont:
return False
if cont.get_type() == cont_types["luks"]:
return True
return False
def __change_password(self, old_pw, new_pw, new_pw2):
if not old_pw:
self.hdf["Data.Warning"] = "EmptyPassword"
elif not new_pw:
self.hdf["Data.Warning"] = "EmptyNewPassword"
elif new_pw != new_pw2:
self.hdf["Data.Warning"] = "DifferentPasswords"
elif old_pw == new_pw:
## do nothing
pass
else:
try:
self.container.change_password(old_pw, new_pw)
except CBInvalidType, err_msg:
self.cbox.log.info("plugin 'volume_chpasswd' - cannot change " \
+ "passphrase for non-encrypted container (%s): %s" \
% (self.device, err_msg))
except CBVolumeIsActive:
self.hdf["Data.Warning"] = "VolumeMayNotBeMounted"
except CBChangePasswordError, err_msg:
self.cbox.log.warn("plugin 'volume_chpasswd' - cannot change " \
+ "password for device (%s): %s" % (self.device, err_msg))
self.hdf["Data.Warning"] = "Plugins.volume_chpasswd.PasswordChange"
else:
self.hdf["Data.Success"] = "Plugins.volume_chpasswd.PasswordChange"
return "volume_chpasswd"