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import paramiko
import common
import scp
TIMEOUT = 600
log = common.log
err = common.err
class SSHClient(object):
def __init__(self, host, username, password):
self.host = host
self.username = username
self.password = password
self.client = None
def open(self, timeout=TIMEOUT):
self.client = paramiko.SSHClient()
self.client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
self.client.connect(self.host, username=self.username,
password=self.password, look_for_keys=False,
timeout=timeout)
def close(self):
if self.client is not None:
self.client.close()
self.client = None
def __enter__(self):
self.open()
return self
def __exit__(self, type, value, traceback):
self.close()
def exec_cmd(self, command, sudo=False, timeout=TIMEOUT, check=True):
if sudo and self.username != 'root':
command = "sudo -S -p '' %s" % command
stdin, stdout, stderr = self.client.exec_command(command,
timeout=timeout)
if sudo:
stdin.write(self.password + '\n')
stdin.flush()
response = stdout.read().strip()
error = stderr.read().strip()
if check:
if error:
self.close()
err(error)
else:
return response
return response, error
def run(self, command):
transport = self.client.get_transport()
transport.set_keepalive(1)
chan = transport.open_session()
chan.exec_command(command)
while not chan.exit_status_ready():
if chan.recv_ready():
data = chan.recv(1024)
while data:
log(data.strip())
data = chan.recv(1024)
if chan.recv_stderr_ready():
error_buff = chan.recv_stderr(1024)
while error_buff:
log(error_buff.strip())
error_buff = chan.recv_stderr(1024)
def scp_get(self, remote, local='.', dir=False):
try:
with scp.SCPClient(self.client.get_transport()) as _scp:
_scp.get(remote, local, dir)
except Exception as e:
err(e)
def scp_put(self, local, remote='.', dir=False):
try:
with scp.SCPClient(self.client.get_transport()) as _scp:
_scp.put(local, remote, dir)
except Exception as e:
err(e)
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