Current File : //lib64/python3.9/site-packages/setools/boolquery.py
# 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
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