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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
import re
from .mixins import MatchName, MatchPermission
from .query import PolicyQuery
class CommonQuery(MatchPermission, MatchName, PolicyQuery):
"""
Query common permission sets.
Parameter:
policy The policy to query.
Keyword Parameters/Class attributes:
name The name of the common to match.
name_regex If true, regular expression matching will
be used for matching the name.
perms The permissions to match.
perms_equal If true, only commons with permission sets
that are equal to the criteria will
match. Otherwise, any intersection
will match.
perms_regex If true, regular expression matching will be used
on the permission names instead of set logic.
"""
def __init__(self, policy, **kwargs):
super(CommonQuery, self).__init__(policy, **kwargs)
self.log = logging.getLogger(__name__)
def results(self):
"""Generator which yields all matching commons."""
self.log.info("Generating common results from {0.policy}".format(self))
self._match_name_debug(self.log)
self._match_perms_debug(self.log)
for com in self.policy.commons():
if not self._match_name(com):
continue
if not self._match_perms(com):
continue
yield com
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