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Nama	Ukuran	Aksi
__pycache__	-	Open
bool.py	2.43 MB	View DL Edit
bounds.py	3.69 MB	View DL Edit
commons.py	2.15 MB	View DL Edit
conditional.py	1.23 MB	View DL Edit
constraints.py	8.2 MB	View DL Edit
context.py	1.36 MB	View DL Edit
default.py	3.54 MB	View DL Edit
descriptors.py	1.04 MB	View DL Edit
difference.py	5.36 MB	View DL Edit
fsuse.py	2.49 MB	View DL Edit
genfscon.py	2.66 MB	View DL Edit
ibendportcon.py	2.58 MB	View DL Edit
ibpkeycon.py	2.59 MB	View DL Edit
initsid.py	1.95 MB	View DL Edit
mls.py	9.91 MB	View DL Edit
mlsrules.py	4.55 MB	View DL Edit
netifcon.py	3.05 MB	View DL Edit
nodecon.py	2.59 MB	View DL Edit
objclass.py	3.08 MB	View DL Edit
polcap.py	1.09 MB	View DL Edit
portcon.py	2.57 MB	View DL Edit
properties.py	1.78 MB	View DL Edit
rbacrules.py	6.4 MB	View DL Edit
roles.py	2.66 MB	View DL Edit
terules.py	24.09 MB	View DL Edit
typeattr.py	2.8 MB	View DL Edit
types.py	4.17 MB	View DL Edit
typing.py	458 B	View DL Edit
users.py	5.35 MB	View DL Edit
__init__.py	2.52 MB	View DL Edit

Edit file: /lib64/python3.9/site-packages/setools/diff/users.py

# Copyright 2016, Tresys Technology, LLC
# Copyright 2018, Chris PeBenito <pebenito@ieee.org>
#
# SPDX-License-Identifier: LGPL-2.1-only
#
from collections import defaultdict
from typing import NamedTuple, Set, Optional, Union

from ..exception import MLSDisabled
from ..policyrep import Level, Range, Role, User

from .descriptors import DiffResultDescriptor
from .difference import Difference, SymbolWrapper
from .mls import LevelWrapper, RangeWrapper
from .roles import role_wrapper_factory
from .typing import SymbolCache

_users_cache: SymbolCache[User] = defaultdict(dict)

class ModifiedUser(NamedTuple):

"""Difference details for a modified user."""

added_roles: Set[Role]
    removed_roles: Set[Role]
    matched_roles: Set[Role]
    added_level: Optional[Union[Level, str]]
    removed_level: Optional[Union[Level, str]]
    added_range: Optional[Union[Range, str]]
    removed_range: Optional[Union[Range, str]]

def user_wrapper_factory(user: User) -> SymbolWrapper[User]:
    """
    Wrap users from the specified policy.

This caches results to prevent duplicate wrapper
    objects in memory.
    """
    try:
        return _users_cache[user.policy][user]
    except KeyError:
        r = SymbolWrapper(user)
        _users_cache[user.policy][user] = r
        return r

class UsersDifference(Difference):

"""Determine the difference in users between two policies."""

added_users = DiffResultDescriptor("diff_users")
    removed_users = DiffResultDescriptor("diff_users")
    modified_users = DiffResultDescriptor("diff_users")

def diff_users(self) -> None:
        """Generate the difference in users between the policies."""

self.log.info(
            "Generating user differences from {0.left_policy} to {0.right_policy}".format(self))

self.added_users, self.removed_users, matched_users = self._set_diff(
            (user_wrapper_factory(r) for r in self.left_policy.users()),
            (user_wrapper_factory(r) for r in self.right_policy.users()))

self.modified_users = dict()

for left_user, right_user in matched_users:
            # Criteria for modified users
            # 1. change to role set, or
            # 2. change to default level, or
            # 3. change to range
            added_roles, removed_roles, matched_roles = self._set_diff(
                (role_wrapper_factory(r) for r in left_user.roles),
                (role_wrapper_factory(r) for r in right_user.roles))

# keep wrapped and unwrapped MLS objects here so there
            # are not several nested try blocks
            left_level_wrap: Optional[LevelWrapper]
            left_range_wrap: Optional[RangeWrapper]
            left_level: Union[Level, str]
            left_range: Union[Range, str]
            right_level_wrap: Optional[LevelWrapper]
            right_range_wrap: Optional[RangeWrapper]
            right_level: Union[Level, str]
            right_range: Union[Range, str]
            added_level: Optional[Union[Level, str]]
            added_range: Optional[Union[Range, str]]
            removed_level: Optional[Union[Level, str]]
            removed_range: Optional[Union[Range, str]]
            try:
                left_level_wrap = LevelWrapper(left_user.mls_level)
                left_range_wrap = RangeWrapper(left_user.mls_range)
                left_level = left_user.mls_level
                left_range = left_user.mls_range
            except MLSDisabled:
                left_level_wrap = None
                left_range_wrap = None
                left_level = "None (MLS Disabled)"
                left_range = "None (MLS Disabled)"

try:
                right_level_wrap = LevelWrapper(right_user.mls_level)
                right_range_wrap = RangeWrapper(right_user.mls_range)
                right_level = right_user.mls_level
                right_range = right_user.mls_range
            except MLSDisabled:
                right_level_wrap = None
                right_range_wrap = None
                right_level = "None (MLS Disabled)"
                right_range = "None (MLS Disabled)"

if left_level_wrap != right_level_wrap:
                added_level = right_level
                removed_level = left_level
            else:
                added_level = None
                removed_level = None

if left_range_wrap != right_range_wrap:
                added_range = right_range
                removed_range = left_range
            else:
                added_range = None
                removed_range = None

if added_roles or removed_roles or removed_level or removed_range:
                self.modified_users[left_user] = ModifiedUser(added_roles,
                                                              removed_roles,
                                                              matched_roles,
                                                              added_level,
                                                              removed_level,
                                                              added_range,
                                                              removed_range)

#
    # Internal functions
    #
    def _reset_diff(self) -> None:
        """Reset diff results on policy changes."""
        self.log.debug("Resetting user differences")
        self.added_users = None
        self.removed_users = None
        self.modified_users = None

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