mirror of https://github.com/jtesta/ssh-audit.git
62 lines
2.5 KiB
Python
62 lines
2.5 KiB
Python
"""
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The MIT License (MIT)
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Copyright (C) 2017 Andris Raugulis (moo@arthepsy.eu)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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"""
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# pylint: disable=unused-import
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from typing import Dict, List, Set, Sequence, Tuple, Iterable # noqa: F401
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from typing import Callable, Optional, Union, Any # noqa: F401
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from ssh_audit.product import Product
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class Algorithm:
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@staticmethod
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def get_ssh_version(version_desc: str) -> Tuple[str, str, bool]:
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is_client = version_desc.endswith('C')
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if is_client:
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version_desc = version_desc[:-1]
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if version_desc.startswith('d'):
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return Product.DropbearSSH, version_desc[1:], is_client
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elif version_desc.startswith('l1'):
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return Product.LibSSH, version_desc[2:], is_client
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else:
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return Product.OpenSSH, version_desc, is_client
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@classmethod
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def get_since_text(cls, versions: List[Optional[str]]) -> Optional[str]:
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tv = []
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if len(versions) == 0 or versions[0] is None:
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return None
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for v in versions[0].split(','):
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ssh_prod, ssh_ver, is_cli = cls.get_ssh_version(v)
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if not ssh_ver:
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continue
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if ssh_prod in [Product.LibSSH]:
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continue
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if is_cli:
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ssh_ver = '{} (client only)'.format(ssh_ver)
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tv.append('{} {}'.format(ssh_prod, ssh_ver))
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if len(tv) == 0:
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return None
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return 'available since ' + ', '.join(tv).rstrip(', ')
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