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# Copyright 2014-2015, Tresys Technology, LLC
#
# This file is part of SETools.
#
# SETools 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.
#
# SETools 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 SETools. If not, see
# <http://www.gnu.org/licenses/>.
#
import logging
from . import compquery
from .descriptors import CriteriaDescriptor
class BoolQuery(compquery.ComponentQuery):
"""Query SELinux policy Booleans.
Parameter:
policy The policy to query.
Keyword Parameters/Class attributes:
name The Boolean name to match.
name_regex If true, regular expression matching
will be used on the Boolean name.
default The default state to match. If this
is None, the default state not be matched.
"""
_default = None
@property
def default(self):
return self._default
@default.setter
def default(self, value):
if value is None:
self._default = None
else:
self._default = bool(value)
def results(self):
"""Generator which yields all Booleans matching the criteria."""
self.log.info("Generating results from {0.policy}".format(self))
self.log.debug("Name: {0.name!r}, regex: {0.name_regex}".format(self))
self.log.debug("Default: {0.default}".format(self))
for boolean in self.policy.bools():
if not self._match_name(boolean):
continue
if self.default is not None and boolean.state != self.default:
continue
yield boolean
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