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# Copyright 2016 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from twisted.conch.manhole import ColoredManhole
from twisted.conch.insults import insults
from twisted.conch import manhole_ssh
from twisted.cred import checkers, portal
def manhole(username, password, globals):
"""Starts a ssh listener with password authentication using
the given username and password. Clients connecting to the ssh
listener will find themselves in a colored python shell with
the supplied globals.
Args:
username(str): The username ssh clients should auth with.
password(str): The password ssh clients should auth with.
globals(dict): The variables to expose in the shell.
Returns:
twisted.internet.protocol.Factory: A factory to pass to ``listenTCP``
"""
checker = checkers.InMemoryUsernamePasswordDatabaseDontUse(
**{username: password}
)
rlm = manhole_ssh.TerminalRealm()
rlm.chainedProtocolFactory = lambda: insults.ServerProtocol(
ColoredManhole,
dict(globals, __name__="__console__")
)
return manhole_ssh.ConchFactory(portal.Portal(rlm, [checker]))
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