core-admin/qubes/tools/qvm_prefs.py
2015-10-05 12:46:13 +02:00

148 lines
4.5 KiB
Python

#!/usr/bin/python2
# -*- encoding: utf8 -*-
#
# The Qubes OS Project, http://www.qubes-os.org
#
# Copyright (C) 2010-2015 Joanna Rutkowska <joanna@invisiblethingslab.com>
# Copyright (C) 2015 Wojtek Porczyk <woju@invisiblethingslab.com>
#
# 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 2 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# TODO list properties for all classes
# TODO list only non-default properties
from __future__ import print_function
import argparse
import os
import subprocess
import sys
import textwrap
import qubes
import qubes.tools
import qubes.utils
import qubes.vm
class _HelpPropertiesAction(argparse.Action):
'''Action for argument parser that displays all properties and exits.'''
# pylint: disable=redefined-builtin
def __init__(self,
option_strings,
dest=argparse.SUPPRESS,
default=argparse.SUPPRESS,
help='list all available properties with short descriptions'
' and exit'):
super(_HelpPropertiesAction, self).__init__(
option_strings=option_strings,
dest=dest,
default=default,
nargs=0,
help=help)
def __call__(self, parser, namespace, values, option_string=None):
properties = qubes.vm.qubesvm.QubesVM.property_list()
width = max(len(prop.__name__) for prop in properties)
wrapper = textwrap.TextWrapper(width=80,
initial_indent=' ', subsequent_indent=' ' * (width + 6))
text = 'Common properties:\n' + '\n'.join(
wrapper.fill('{name:{width}s} {doc}'.format(
name=prop.__name__,
doc=qubes.utils.format_doc(prop.__doc__) if prop.__doc__ else'',
width=width))
for prop in sorted(properties))
parser.exit(message=text
+ '\n\nThere may be more properties in specific domain classes.\n')
parser = qubes.tools.get_parser_base(want_force_root=True)
parser.add_argument('--help-properties', action=_HelpPropertiesAction)
parser.add_argument('name', metavar='VMNAME',
help='name of the domain to change')
parser.add_argument('property', metavar='PROPERTY',
nargs='?',
help='name of the property to show or change')
parser_value = parser.add_mutually_exclusive_group()
parser_value.add_argument('value', metavar='VALUE',
nargs='?',
help='new value of the property')
parser.add_argument('--unset', '--default', '--delete', '-D',
dest='delete',
action='store_true',
help='unset the property; if property has default value, it will be used'
' instead')
def main():
args = parser.parse_args()
qubes.tools.set_verbosity(parser, args)
qubes.tools.dont_run_as_root(parser, args)
app = qubes.Qubes(args.xml)
try:
domain = app.domains[args.name]
except KeyError:
parser.error('no such domain: {!r}'.format(args.name))
if args.property is None:
properties = domain.property_list()
width = max(len(prop.__name__) for prop in properties)
for prop in sorted(properties):
try:
value = getattr(domain, prop.__name__)
except AttributeError:
print('{name:{width}s} U'.format(
name=prop.__name__, width=width))
continue
if domain.property_is_default(prop):
print('{name:{width}s} D {value!r}'.format(
name=prop.__name__, width=width, value=value))
else:
print('{name:{width}s} - {value!r}'.format(
name=prop.__name__, width=width, value=value))
return True
if args.value is not None:
setattr(domain, args.property, args.value)
app.save()
return True
if args.delete:
delattr(domain, args.property)
app.save()
return True
print(str(getattr(domain, args.property)))
return True
if __name__ == '__main__':
sys.exit(not main())