# tbot, Embedded Automation Tool
# Copyright (C) 2018 Harald Seiler
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import abc
import pathlib
[docs]class Authenticator(abc.ABC):
"""Authenticate a connection to a linux host."""
pass
[docs]class PasswordAuthenticator(Authenticator):
"""Authenticate using a password."""
__slots__ = ("password",)
def __init__(self, password: str) -> None:
"""
Initialize this authenticator with a given password.
:param str password: The password that will be used
with this authenticator.
"""
self.password = password
[docs]class PrivateKeyAuthenticator(Authenticator):
"""Authenticate using a private key."""
__slots__ = ("key_file",)
def __init__(self, key_file: pathlib.PurePath) -> None:
"""
Initialize this authenticator with a path to a private key.
:param pathlib.Path key_file: Path to the private key file
"""
self.key_file = pathlib.PurePath.__str__(key_file)
[docs]class NoneAuthenticator(Authenticator):
"""
Authenticates without key or password.
Useful if an ssh-agent is running in the background on lab-hosts.
.. versionadded:: 0.6.4
"""