View file File name : query.py Content :# Copyright 2014-2015, Tresys Technology, LLC # Copyright 2018, Chris PeBenito <pebenito@ieee.org> # # 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/>. # from abc import ABC, abstractmethod class PolicyQuery(ABC): """Abstract base class for SELinux policy queries.""" def __init__(self, policy, **kwargs): self.policy = policy # keys are sorted in reverse order so regex settings # are set before the criteria, e.g. name_regex # is set before name. This ensures correct behavior # since the criteria descriptors are sensitve to # regex settings. for name in sorted(kwargs.keys(), reverse=True): attr = getattr(self, name, None) # None is not callable if callable(attr): raise ValueError("Keyword parameter {0} conflicts with a callable.".format(name)) setattr(self, name, kwargs[name]) @abstractmethod def results(self): """ Generator which returns the matches for the query. This method should be overridden by subclasses. """ pass