def __get_privatekey_file(self):
"""Returns user private key"""
pkey_file = None
rsa_key_file = local_expanduser('~%s/.ssh/id_rsa' \
% self.username)
dsa_key_file = local_expanduser('~%s/.ssh/id_dsa' \
% self.username)
if local_pathexists(rsa_key_file):
pkey_file = rsa_key_file
elif local_pathexists(dsa_key_file):
pkey_file = dsa_key_file
return pkey_file
def __init__(self, host, port=22, username=None, password=None, pkey=None):
""" Creates a new SSH transport object which can be used in starting a
session with remote server. The authentication is done based on password
or private_key.
Arguments:
host (str) - host name or ip
port (int) - (optional) defaults to 22
username (str) - (optional) defaults to command execution username
password (str) - (optional) defaults to private_key
pkey (str) - (optional) private key defaults to ~/.ssh/id_rsa key
Actions:
* Creates SSH transport object
* Authenticates remotes based on username and private_key|password
"""
self.host = host
self.port = port
self.username = username or local_environ['LOGNAME']
self.password = password
self.pkey = None
self.transport = None
self.sftp_live = False
self.sftp = None
# Set to info level
LOG.setLevel(20)
if pkey:
pkey_file = local_expanduser(pkey)
else:
pkey_file = self.__get_privatekey_file()
if not password and not pkey_file:
raise RemoteDispatcherException(\
"You have not specified a password or key.")
if pkey_file:
self.__load_private_key(pkey_file)
self.__establish_session()
