/usr/share/pyshared/pymodbus/internal/ptwisted.py is in python-pymodbus 1.2.0-2.
This file is owned by root:root, with mode 0o644.
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A collection of twisted utility code
'''
from twisted.cred import portal, checkers
from twisted.conch import manhole, manhole_ssh
from twisted.conch.insults import insults
#---------------------------------------------------------------------------#
# Logging
#---------------------------------------------------------------------------#
import logging
_logger = logging.getLogger(__name__)
#---------------------------------------------------------------------------#
# Twisted Helper Methods
#---------------------------------------------------------------------------#
def InstallManagementConsole(namespace, users={'admin': 'admin'}, port=503):
''' Helper method to start an ssh management console
for the modbus server.
:param namespace: The data to constrain the server to
:param users: The users to login with
:param port: The port to host the server on
'''
from twisted.internet import reactor
def build_protocol():
p = insults.ServerProtocol(manhole.ColoredManhole, namespace)
return p
r = manhole_ssh.TerminalRealm()
r.chainedProtocolFactory = build_protocol
c = checkers.InMemoryUsernamePasswordDatabaseDontUse(**users)
p = portal.Portal(r, [c])
factory = manhole_ssh.ConchFactory(p)
reactor.listenTCP(port, factory)
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