# Copyright 2014-2015, Tresys Technology, LLC # # SPDX-License-Identifier: LGPL-2.1-only # import logging from typing import Iterable, Optional from .descriptors import CriteriaDescriptor from .mixins import MatchName from .policyrep import Boolean from .query import PolicyQuery class BoolQuery(MatchName, PolicyQuery): """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: Optional[bool] = None @property def default(self) -> Optional[bool]: return self._default @default.setter def default(self, value) -> None: if value is None: self._default = None else: self._default = bool(value) def __init__(self, policy, **kwargs) -> None: super(BoolQuery, self).__init__(policy, **kwargs) self.log = logging.getLogger(__name__) def results(self) -> Iterable[Boolean]: """Generator which yields all Booleans matching the criteria.""" self.log.info("Generating Boolean results from {0.policy}".format(self)) self._match_name_debug(self.log) 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