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"""
The MIT License (MIT)
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.algorithm import Algorithm
class Timeframe:
def __init__(self) -> None:
self.__storage: Dict[str, List[Optional[str]]] = {}
def __contains__(self, product: str) -> bool:
return product in self.__storage
def __getitem__(self, product: str) -> Sequence[Optional[str]]:
return tuple(self.__storage.get(product, [None] * 4))
def __str__(self) -> str:
return self.__storage.__str__()
def __repr__(self) -> str:
return self.__str__()
def get_from(self, product: str, for_server: bool = True) -> Optional[str]:
return self[product][0 if bool(for_server) else 2]
def get_till(self, product: str, for_server: bool = True) -> Optional[str]:
return self[product][1 if bool(for_server) else 3]
def _update(self, versions: Optional[str], pos: int) -> None:
ssh_versions: Dict[str, str] = {}
for_srv, for_cli = pos < 2, pos > 1
for v in (versions or '').split(','):
ssh_prod, ssh_ver, is_cli = Algorithm.get_ssh_version(v)
if not ssh_ver or (is_cli and for_srv) or (not is_cli and for_cli and ssh_prod in ssh_versions):
continue
ssh_versions[ssh_prod] = ssh_ver
for ssh_product, ssh_version in ssh_versions.items():
if ssh_product not in self.__storage:
self.__storage[ssh_product] = [None] * 4
prev = self[ssh_product][pos]
if (prev is None or (prev < ssh_version and pos % 2 == 0) or (prev > ssh_version and pos % 2 == 1)):
self.__storage[ssh_product][pos] = ssh_version
def update(self, versions: List[Optional[str]], for_server: Optional[bool] = None) -> 'Timeframe':
for_cli = for_server is None or for_server is False
for_srv = for_server is None or for_server is True
vlen = len(versions)
for i in range(min(3, vlen)):
if for_srv and i < 2:
self._update(versions[i], i)
if for_cli and (i % 2 == 0 or vlen == 2):
self._update(versions[i], 3 - 0**i)
return self
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