80 lines
2.7 KiB
Python
Executable File
80 lines
2.7 KiB
Python
Executable File
# Copyright 2015, Tresys Technology, LLC
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#
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# This file is part of SETools.
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#
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# SETools is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as
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# published by the Free Software Foundation, either version 2.1 of
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# the License, or (at your option) any later version.
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#
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# SETools 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 Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with SETools. If not, see
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# <http://www.gnu.org/licenses/>.
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#
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import logging
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from .descriptors import CriteriaDescriptor
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from .mixins import MatchAlias, MatchName
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from .query import PolicyQuery
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from .util import match_level
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class SensitivityQuery(MatchAlias, MatchName, PolicyQuery):
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"""
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Query MLS Sensitivities
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Parameter:
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policy The policy to query.
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Keyword Parameters/Class attributes:
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name The name of the category to match.
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name_regex If true, regular expression matching will
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be used for matching the name.
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alias The alias name to match.
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alias_regex If true, regular expression matching
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will be used on the alias names.
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sens The criteria to match the sensitivity by dominance.
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sens_dom If true, the criteria will match if it dominates
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the sensitivity.
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sens_domby If true, the criteria will match if it is dominated
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by the sensitivity.
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"""
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sens = CriteriaDescriptor(lookup_function="lookup_sensitivity")
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sens_dom = False
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sens_domby = False
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def __init__(self, policy, **kwargs):
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super(SensitivityQuery, self).__init__(policy, **kwargs)
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self.log = logging.getLogger(__name__)
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def results(self):
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"""Generator which yields all matching sensitivities."""
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self.log.info("Generating sensitivity results from {0.policy}".format(self))
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self._match_name_debug(self.log)
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self._match_alias_debug(self.log)
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self.log.debug("Sens: {0.sens!r}, dom: {0.sens_dom}, domby: {0.sens_domby}".format(self))
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for s in self.policy.sensitivities():
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if not self._match_name(s):
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continue
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if not self._match_alias(s):
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continue
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if self.sens and not match_level(
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s,
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self.sens,
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self.sens_dom,
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self.sens_domby,
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False):
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continue
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yield s
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