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+#!/usr/bin/env python
+
+# Copyright (C) 2003-2007 Robey Pointer <robey@lag.net>
+#
+# 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 distrubuted 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
+
+
+# setup logging
+paramiko.util.log_to_file('demo_sftp.log')
+
+# get hostname
+username = ''
+if len(sys.argv) > 1:
+ hostname = sys.argv[1]
+ if hostname.find('@') >= 0:
+ username, hostname = hostname.split('@')
+else:
+ hostname = raw_input('Hostname: ')
+if len(hostname) == 0:
+ print '*** Hostname required.'
+ sys.exit(1)
+port = 22
+if hostname.find(':') >= 0:
+ hostname, portstr = hostname.split(':')
+ port = int(portstr)
+
+
+# get username
+if username == '':
+ default_username = getpass.getuser()
+ username = raw_input('Username [%s]: ' % default_username)
+ if len(username) == 0:
+ username = default_username
+password = getpass.getpass('Password for %s@%s: ' % (username, hostname))
+
+
+# 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 host_keys.has_key(hostname):
+ 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(username=username, password=password, hostkey=hostkey)
+ sftp = paramiko.SFTPClient.from_transport(t)
+
+ # dirlist on remote host
+ dirlist = sftp.listdir('.')
+ print "Dirlist:", dirlist
+
+ # copy this demo onto the server
+ try:
+ sftp.mkdir("demo_sftp_folder")
+ except IOError:
+ print '(assuming demo_sftp_folder/ already exists)'
+ sftp.open('demo_sftp_folder/README', 'w').write('This was created by demo_sftp.py.\n')
+ data = open('demo_sftp.py', 'r').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
+ data = sftp.open('demo_sftp_folder/README', 'r').read()
+ open('README_demo_sftp', 'w').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, e:
+ print '*** Caught exception: %s: %s' % (e.__class__, e)
+ traceback.print_exc()
+ try:
+ t.close()
+ except:
+ pass
+ sys.exit(1)