ssh-audit/src/ssh_audit/auditconf.py

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"""
The MIT License (MIT)
Copyright (C) 2017-2020 Joe Testa (jtesta@positronsecurity.com)
Copyright (C) 2017 Andris Raugulis (moo@arthepsy.eu)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
"""
# pylint: disable=unused-import
from typing import Dict, List, Set, Sequence, Tuple, Iterable # noqa: F401
from typing import Callable, Optional, Union, Any # noqa: F401
from ssh_audit.policy import Policy
from ssh_audit.utils import Utils
class AuditConf:
# pylint: disable=too-many-instance-attributes
def __init__(self, host: str = '', port: int = 22) -> None:
self.host = host
self.port = port
self.ssh1 = True
self.ssh2 = True
self.batch = False
self.client_audit = False
self.colors = True
self.json = False
self.verbose = False
self.level = 'info'
self.ipvo = () # type: Sequence[int]
self.ipv4 = False
self.ipv6 = False
self.make_policy = False # When True, creates a policy file from an audit scan.
self.policy_file = None # type: Optional[str] # File system path to a policy
self.policy = None # type: Optional[Policy] # Policy object
self.timeout = 5.0
self.timeout_set = False # Set to True when the user explicitly sets it.
self.target_file = None # type: Optional[str]
self.target_list = [] # type: List[str]
self.list_policies = False
self.lookup = ''
def __setattr__(self, name: str, value: Union[str, int, float, bool, Sequence[int]]) -> None:
valid = False
if name in ['ssh1', 'ssh2', 'batch', 'client_audit', 'colors', 'verbose', 'timeout_set', 'json', 'make_policy', 'list_policies']:
valid, value = True, bool(value)
elif name in ['ipv4', 'ipv6']:
valid = False
value = bool(value)
ipv = 4 if name == 'ipv4' else 6
if value:
value = tuple(list(self.ipvo) + [ipv])
else: # pylint: disable=else-if-used
if len(self.ipvo) == 0:
value = (6,) if ipv == 4 else (4,)
else:
value = tuple([x for x in self.ipvo if x != ipv])
self.__setattr__('ipvo', value)
elif name == 'ipvo':
if isinstance(value, (tuple, list)):
uniq_value = Utils.unique_seq(value)
value = tuple([x for x in uniq_value if x in (4, 6)])
valid = True
ipv_both = len(value) == 0
object.__setattr__(self, 'ipv4', ipv_both or 4 in value)
object.__setattr__(self, 'ipv6', ipv_both or 6 in value)
elif name == 'port':
valid, port = True, Utils.parse_int(value)
if port < 1 or port > 65535:
raise ValueError('invalid port: {}'.format(value))
value = port
elif name in ['level']:
if value not in ('info', 'warn', 'fail'):
raise ValueError('invalid level: {}'.format(value))
valid = True
elif name == 'host':
valid = True
elif name == 'timeout':
value = Utils.parse_float(value)
if value == -1.0:
raise ValueError('invalid timeout: {}'.format(value))
valid = True
elif name in ['policy_file', 'policy', 'target_file', 'target_list', 'lookup']:
valid = True
if valid:
object.__setattr__(self, name, value)