103 lines
3.0 KiB
Python
103 lines
3.0 KiB
Python
#
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# The Qubes OS Project, https://www.qubes-os.org/
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#
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# Copyright (C) 2010-2016 Joanna Rutkowska <joanna@invisiblethingslab.com>
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# Copyright (C) 2016 Wojtek Porczyk <woju@invisiblethingslab.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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'''qvm-features - Manage domain's features'''
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from __future__ import print_function
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import argparse
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import sys
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import qubes
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parser = qubes.tools.QubesArgumentParser(
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vmname_nargs=1,
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description='manage domain\'s features')
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parser.add_argument('--request',
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action='store_true', default=False,
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help=argparse.SUPPRESS)
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parser.add_argument('feature', metavar='FEATURE',
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action='store', nargs='?',
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help='name of the feature')
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parser.add_argument('value', metavar='VALUE',
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action='store', nargs='?',
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help='new value of the feature')
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parser.add_argument('--unset', '--default', '--delete', '-D',
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dest='delete',
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action='store_true',
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help='unset the feature')
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def main(args=None):
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'''Main routine of :program:`qvm-features`.
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:param list args: Optional arguments to override those delivered from \
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command line.
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'''
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args = parser.parse_args(args)
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vm = args.domains[0]
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if args.request:
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# Request mode: instead of setting the features directly,
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# let the extensions handle them first.
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vm.fire_event('feature-request', untrusted_features=args.features)
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elif args.feature is None:
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if args.delete:
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parser.error('--unset requires a feature')
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# max doesn't like empty list
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if vm.features:
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width = max(len(feature) for feature in vm.features)
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for feature in sorted(vm.features):
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print('{name:{width}s} {value}'.format(
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name=feature, value=vm.features[feature], width=width))
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elif args.delete:
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if args.value is not None:
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parser.error('cannot both set and unset a value')
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try:
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del vm.features[args.feature]
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args.app.save()
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except KeyError:
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pass
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elif args.value is None:
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try:
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print(vm.features[args.feature])
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return 0
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except KeyError:
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return 1
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else:
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vm.features[args.feature] = args.value
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args.app.save()
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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