| # Copyright 2016, 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 .descriptors import CriteriaDescriptor, CriteriaSetDescriptor |
| from .query import PolicyQuery |
| from .util import match_regex |
| |
| |
| class BoundsQuery(PolicyQuery): |
| |
| """ |
| Query *bounds statements. |
| |
| Parameter: |
| policy The policy to query. |
| |
| Keyword Parameters/Class attributes: |
| ruletype The rule type(s) to match. |
| """ |
| |
| ruletype = CriteriaSetDescriptor(lookup_function="validate_bounds_ruletype") |
| parent = CriteriaDescriptor("parent_regex") |
| parent_regex = False |
| child = CriteriaDescriptor("child_regex") |
| child_regex = False |
| |
| def __init__(self, policy, **kwargs): |
| super(BoundsQuery, self).__init__(policy, **kwargs) |
| self.log = logging.getLogger(__name__) |
| |
| def results(self): |
| """Generator which yields all matching *bounds statements.""" |
| self.log.info("Generating bounds results from {0.policy}".format(self)) |
| self.log.debug("Ruletypes: {0.ruletype}".format(self)) |
| self.log.debug("Parent: {0.parent!r}, regex: {0.parent_regex}".format(self)) |
| self.log.debug("Child: {0.child!r}, regex: {0.child_regex}".format(self)) |
| |
| for b in self.policy.bounds(): |
| if self.ruletype and b.ruletype not in self.ruletype: |
| continue |
| |
| if self.parent and not match_regex( |
| b.parent, |
| self.parent, |
| self.parent_regex): |
| continue |
| |
| if self.child and not match_regex( |
| b.child, |
| self.child, |
| self.child_regex): |
| continue |
| |
| yield b |
