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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.
# based on code provided by raymond mosteller (thanks!)
import base64
import getpass
import os
import socket
import sys
import traceback
import paramiko
from paramiko.py3compat import input
# setup logging
paramiko.util.log_to_file('demo_sftp.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:
password = getpass.getpass('Password for %s@%s: ' % (username, hostname))
else:
password = None
# get host key, if we know one
hostkeytype = None
hostkey = None
try:
host_keys = paramiko.util.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
except IOError:
try:
# try ~/ssh/ too, because windows can't have a folder named ~/.ssh/
host_keys = paramiko.util.load_host_keys(os.path.expanduser('~/ssh/known_hosts'))
except IOError:
print('*** Unable to open host keys file')
host_keys = {}
if hostname in host_keys:
hostkeytype = host_keys[hostname].keys()[0]
hostkey = host_keys[hostname][hostkeytype]
print('Using host key of type %s' % hostkeytype)
# now, connect and use paramiko Transport to negotiate SSH2 across the connection
try:
t = paramiko.Transport((hostname, Port))
t.connect(hostkey, username, password, gss_host=socket.getfqdn(hostname),
gss_auth=UseGSSAPI, gss_kex=DoGSSAPIKeyExchange)
sftp = paramiko.SFTPClient.from_transport(t)
# dirlist on remote host
dirlist = sftp.listdir('.')
print("Dirlist: %s" % dirlist)
# copy this demo onto the server
try:
sftp.mkdir("demo_sftp_folder")
except IOError:
print('(assuming demo_sftp_folder/ already exists)')
with sftp.open('demo_sftp_folder/README', 'w') as f:
f.write('This was created by demo_sftp.py.\n')
with open('demo_sftp.py', 'r') as f:
data = f.read()
sftp.open('demo_sftp_folder/demo_sftp.py', 'w').write(data)
print('created demo_sftp_folder/ on the server')
# copy the README back here
with sftp.open('demo_sftp_folder/README', 'r') as f:
data = f.read()
with open('README_demo_sftp', 'w') as f:
f.write(data)
print('copied README back here')
# BETTER: use the get() and put() methods
sftp.put('demo_sftp.py', 'demo_sftp_folder/demo_sftp.py')
sftp.get('demo_sftp_folder/README', 'README_demo_sftp')
t.close()
except Exception as e:
print('*** Caught exception: %s: %s' % (e.__class__, e))
traceback.print_exc()
try:
t.close()
except:
pass
sys.exit(1)
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