# coding=utf-8
#
# The Qubes OS Project, https://www.qubes-os.org/
#
# Copyright (C) 2010-2016 Joanna Rutkowska <joanna@invisiblethingslab.com>
# Copyright (C) 2016 Wojtek Porczyk <woju@invisiblethingslab.com>
# Copyright (C) 2017 Marek Marczykowski-Górecki
# <marmarek@invisiblethingslab.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
'''qvm-service - Manage domain's services'''
from __future__ import print_function
import argparse
import sys
import qubesadmin
import qubesadmin.exc
import qubesadmin.tools
parser = qubesadmin.tools.QubesArgumentParser(
vmname_nargs=1,
argument_default=argparse.SUPPRESS,
description='manage domain\'s services')
parser.add_argument('service', metavar='SERVICE',
action='store', nargs='?',
help='name of the feature')
parser.add_argument('value', metavar='VALUE',
action='store', nargs='?',
help='new value of the service (on/off)')
parser.add_argument('--unset', '--default', '--delete', '-D',
dest='delete', default=False,
action='store_true',
help='unset service (default to VM preference)')
parser.add_argument('--list', '-l',
dest='list',
action='store_true',
help='list services (default action)')
parser.add_argument('--enable', '-e',
dest='value',
action='store_const', const='1',
help='enable service (same as setting "on" value)')
parser.add_argument('--disable', '-d',
dest='value',
action='store_const', const='0',
help='disable service (same as setting "off" value)')
[docs]
def parse_bool(value):
'''Convert string value to bool according to well known representations
It accepts (case-insensitive) ``'0'``, ``'no'`` and ``false`` as
:py:obj:`False` and ``'1'``, ``'yes'`` and ``'true'`` as
:py:obj:`True`.
'''
if isinstance(value, str):
lcvalue = value.lower()
if lcvalue in ('0', 'no', 'false', 'off'):
return False
if lcvalue in ('1', 'yes', 'true', 'on'):
return True
raise qubesadmin.exc.QubesValueError(
'Invalid literal for boolean value: {!r}'.format(value))
return bool(value)
[docs]
def main(args=None, app=None):
'''Main routine of :program:`qvm-features`.
:param list args: Optional arguments to override those delivered from \
command line.
'''
args = parser.parse_args(args, app=app)
vm = args.domains[0]
if not hasattr(args, 'service'):
if args.delete:
parser.error('--unset requires a feature')
services = [(feat[len('service.'):],
'on' if vm.features[feat] else 'off') for feat in
vm.features if feat.startswith('service.')]
qubesadmin.tools.print_table(services)
elif args.delete:
if hasattr(args, 'value'):
parser.error('cannot both set and unset a value')
try:
del vm.features['service.' + args.service]
except KeyError:
pass
except qubesadmin.exc.QubesException as err:
parser.error_runtime(str(err))
elif hasattr(args, 'value'):
try:
vm.features['service.' + args.service] = parse_bool(args.value)
except qubesadmin.exc.QubesException as err:
parser.error_runtime(str(err))
else:
try:
print('on' if vm.features['service.' + args.service] else 'off')
return 0
except KeyError:
return 1
except qubesadmin.exc.QubesException as err:
parser.error_runtime(str(err))
return 0
if __name__ == '__main__':
sys.exit(main())