sftp problem!
sa6113
s.payandeh at gmail.com
Mon Oct 6 04:02:42 EDT 2008
Dear Mike,
Thanks for your help, but I am new in paramiko,would you please help me
more?
May I connect to server by password insted of private key? How?
I used this code:
...
t.auth_password(username, password, event)
...
but I received this error :
paramiko.SSHException : No existing session
I think my problem is in authentication, Do you think I have to use pycrypto
module or something like that??
If not would you please tell me how should I precreate the key and ensure
the server
side has it in its authorized_keys? How do I share that as I mentioned it
before I am using two different platforms?
Thanks.
Mike Hjorleifsson wrote:
>
> here is a snippet that works, you need to replace the default data or
> create a database etc.. and the fields to store it
> you also need to generate and share your public key to the receiving
> server to avoid password prompt
>
>
> # Standard library imports
> import os
> import sys
> import time
> import traceback
> import paramiko
>
>
> # my defaultdata is stored in a sqllite table called merchant.lib
> # you can just assign values to defaultdata or recreate a database of
> your own
> from merchant.lib import defaultdata
>
>
> # set up default values
> hostname = defaultdata.defaults['hostname']
> username = defaultdata.defaults['username']
> password = defaultdata.defaults['password']
>
> # paramiko required data
> port = defaultdata.defaults['port']
> fname = defaultdata.defaults['fname']
> pathupload = defaultdata.defaults['pathupload']
> pathdownload = defaultdata.defaults['pathdownload']
> input_dir = defaultdata.defaults['input_dir']
> output_dir = defaultdata.defaults['output_dir']
> curdir = os.path.abspath(os.curdir)
>
> # load ssh pkey you need to precreate the key and ensure the server
> side
> # has it in its authorized_keys
> pkey_path = os.path.expanduser('~/.ssh/id_dsa')
> pkey = paramiko.DSSKey.from_private_key_file(pkey_path)
>
> paramiko.util.log_to_file('transfer.log')
> logger = paramiko.util.get_logger('paramiko')
>
> try:
> # set up connection
> t = paramiko.Transport((hostname, port))
> t.connect(username=username, pkey=pkey)
> sftp = paramiko.SFTPClient.from_transport(t)
>
> # upload files
> files = [file for file in os.listdir(output_dir)
> if file.endswith('.txt')]
> logger.info("UPLOAD FILES %s" % files)
> os.chdir(output_dir)
> for file in files:
> sftp.put(file, os.path.join(pathupload, file))
> os.rename(file, file + '.old')
>
> # download files
> response_files = [file for file in sftp.listdir(pathdownload)
> if file.startswith('DISCOVER_RESPONSE_')]
>
> logger.info("RESPOSE FILES: %s" % response_files)
> os.chdir(os.path.join(curdir, input_dir))
> for file in response_files:
> file_path = os.path.join(pathdownload, file)
> sftp.get(file_path, file)
> sftp.remove(file_path)
>
>
> # close connection
> t.close()
> --
> http://mail.python.org/mailman/listinfo/python-list
>
>
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