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Editing: rolequery.py

# Copyright 2014-2015, Tresys Technology, LLC
#
# SPDX-License-Identifier: LGPL-2.1-only
#
import logging
import re
from typing import Iterable

from .descriptors import CriteriaSetDescriptor
from .mixins import MatchName
from .policyrep import Role
from .query import PolicyQuery
from .util import match_regex_or_set

class RoleQuery(MatchName, PolicyQuery):

"""
    Query SELinux policy roles.

Parameter:
    policy            The policy to query.

Keyword Parameters/Class attributes:
    name         The role name to match.
    name_regex   If true, regular expression matching
                 will be used on the role names.
    types        The type to match.
    types_equal  If true, only roles with type sets
                 that are equal to the criteria will
                 match.  Otherwise, any intersection
                 will match.
    types_regex  If true, regular expression matching
                 will be used on the type names instead
                 of set logic.
    """

types = CriteriaSetDescriptor("types_regex", "lookup_type")
    types_equal: bool = False
    types_regex: bool = False

def __init__(self, policy, **kwargs) -> None:
        super(RoleQuery, self).__init__(policy, **kwargs)
        self.log = logging.getLogger(__name__)

def results(self) -> Iterable[Role]:
        """Generator which yields all matching roles."""
        self.log.info("Generating role results from {0.policy}".format(self))
        self._match_name_debug(self.log)
        self.log.debug("Types: {0.types!r}, regex: {0.types_regex}, "
                       "eq: {0.types_equal}".format(self))

for r in self.policy.roles():
            if not self._match_name(r):
                continue

if self.types and not match_regex_or_set(
                    set(r.types()),
                    self.types,
                    self.types_equal,
                    self.types_regex):
                continue

yield r

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