mirror of
https://github.com/ceph/ceph
synced 2024-12-27 05:53:20 +00:00
56 lines
1.5 KiB
Python
56 lines
1.5 KiB
Python
import base64
|
|
import paramiko
|
|
from ..config import config
|
|
|
|
|
|
def split_user(user_at_host):
|
|
try:
|
|
user, host = user_at_host.rsplit('@', 1)
|
|
except ValueError:
|
|
user, host = None, user_at_host
|
|
assert user != '', \
|
|
"Bad input to split_user: {user_at_host!r}".format(user_at_host=user_at_host)
|
|
return user, host
|
|
|
|
|
|
def create_key(keytype, key):
|
|
if keytype == 'ssh-rsa':
|
|
return paramiko.rsakey.RSAKey(data=base64.decodestring(key))
|
|
elif keytype == 'ssh-dss':
|
|
return paramiko.dsskey.DSSKey(data=base64.decodestring(key))
|
|
else:
|
|
raise ValueError('keytype must be ssh-rsa or ssh-dsa')
|
|
|
|
|
|
def connect(user_at_host, host_key=None, keep_alive=False,
|
|
_SSHClient=None, _create_key=None):
|
|
user, host = split_user(user_at_host)
|
|
if _SSHClient is None:
|
|
_SSHClient = paramiko.SSHClient
|
|
ssh = _SSHClient()
|
|
|
|
if _create_key is None:
|
|
_create_key = create_key
|
|
|
|
if host_key is None:
|
|
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
|
|
if config.verify_host_keys is True:
|
|
ssh.load_system_host_keys()
|
|
|
|
else:
|
|
keytype, key = host_key.split(' ', 1)
|
|
ssh.get_host_keys().add(
|
|
hostname=host,
|
|
keytype=keytype,
|
|
key=_create_key(keytype, key)
|
|
)
|
|
|
|
# just let the exceptions bubble up to caller
|
|
ssh.connect(
|
|
hostname=host,
|
|
username=user,
|
|
timeout=60,
|
|
)
|
|
ssh.get_transport().set_keepalive(keep_alive)
|
|
return ssh
|