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#!/usr/bin/env python
# Copyright (C) 2003-2007 Robey Pointer <robeypointer@gmail.com>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
import base64
import getpass
import os
import socket
import sys
import traceback
from paramiko.py3compat import input
import paramiko
try:
import interactive
except ImportError:
from . import interactive
# setup logging
paramiko.util.log_to_file('demo_simple.log')
# Paramiko client configuration
UseGSSAPI = True # enable GSS-API / SSPI authentication
DoGSSAPIKeyExchange = True
port = 22
# get hostname
username = ''
if len(sys.argv) > 1:
hostname = sys.argv[1]
if hostname.find('@') >= 0:
username, hostname = hostname.split('@')
else:
hostname = input('Hostname: ')
if len(hostname) == 0:
print('*** Hostname required.')
sys.exit(1)
if hostname.find(':') >= 0:
hostname, portstr = hostname.split(':')
port = int(portstr)
# get username
if username == '':
default_username = getpass.getuser()
username = input('Username [%s]: ' % default_username)
if len(username) == 0:
username = default_username
if not UseGSSAPI or (not UseGSSAPI and not DoGSSAPIKeyExchange):
password = getpass.getpass('Password for %s@%s: ' % (username, hostname))
# now, connect and use paramiko Client to negotiate SSH2 across the connection
try:
client = paramiko.SSHClient()
client.load_system_host_keys()
client.set_missing_host_key_policy(paramiko.WarningPolicy())
print('*** Connecting...')
if not UseGSSAPI or (not UseGSSAPI and not DoGSSAPIKeyExchange):
client.connect(hostname, port, username, password)
else:
# SSPI works only with the FQDN of the target host
hostname = socket.getfqdn(hostname)
try:
client.connect(hostname, port, username, gss_auth=UseGSSAPI,
gss_kex=DoGSSAPIKeyExchange)
except Exception:
password = getpass.getpass('Password for %s@%s: ' % (username, hostname))
client.connect(hostname, port, username, password)
chan = client.invoke_shell()
print(repr(client.get_transport()))
print('*** Here we go!\n')
interactive.interactive_shell(chan)
chan.close()
client.close()
except Exception as e:
print('*** Caught exception: %s: %s' % (e.__class__, e))
traceback.print_exc()
try:
client.close()
except:
pass
sys.exit(1)
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