def test_get_conn_from_connection(self, mock_get_connection, mock_protocol):
connection = mock_get_connection.return_value
winrm_hook = WinRMHook(ssh_conn_id='conn_id')
winrm_hook.get_conn()
mock_get_connection.assert_called_once_with(winrm_hook.ssh_conn_id)
mock_protocol.assert_called_once_with(
endpoint=str(connection.extra_dejson['endpoint']),
transport=str(connection.extra_dejson['transport']),
username=connection.login,
password=connection.password,
service=str(connection.extra_dejson['service']),
keytab=str(connection.extra_dejson['keytab']),
ca_trust_path=str(connection.extra_dejson['ca_trust_path']),
cert_pem=str(connection.extra_dejson['cert_pem']),
cert_key_pem=str(connection.extra_dejson['cert_key_pem']),
server_cert_validation=str(connection.extra_dejson['server_cert_validation']),
kerberos_delegation=str(connection.extra_dejson['kerberos_delegation']).lower() == 'true',
read_timeout_sec=int(connection.extra_dejson['read_timeout_sec']),
operation_timeout_sec=int(connection.extra_dejson['operation_timeout_sec']),
kerberos_hostname_override=str(connection.extra_dejson['kerberos_hostname_override']),
message_encryption=str(connection.extra_dejson['message_encryption']),
credssp_disable_tlsv1_2=str(connection.extra_dejson['credssp_disable_tlsv1_2']).lower() == 'true',
send_cbt=str(connection.extra_dejson['send_cbt']).lower() == 'true',
)
def test_get_conn_no_endpoint(self, mock_protocol):
winrm_hook = WinRMHook(remote_host='host', password='******')
winrm_hook.get_conn()
self.assertEqual(
f'http://{winrm_hook.remote_host}:{winrm_hook.remote_port}/wsman',
winrm_hook.endpoint)
def test_get_conn_exists(self, mock_protocol):
winrm_hook = WinRMHook()
winrm_hook.client = mock_protocol.return_value.open_shell.return_value
conn = winrm_hook.get_conn()
self.assertEqual(conn, winrm_hook.client)
class WinRMOperator(BaseOperator):
"""
WinRMOperator to execute commands on given remote host using the winrm_hook.
:param winrm_hook: predefined ssh_hook to use for remote execution
:type winrm_hook: airflow.providers.microsoft.winrm.hooks.winrm.WinRMHook
:param ssh_conn_id: connection id from airflow Connections
:type ssh_conn_id: str
:param remote_host: remote host to connect
:type remote_host: str
:param command: command to execute on remote host. (templated)
:type command: str
:param ps_path: path to powershell, `powershell` for v5.1- and `pwsh` for v6+.
If specified, it will execute the command as powershell script.
:type ps_path: str
:param output_encoding: the encoding used to decode stout and stderr
:type output_encoding: str
:param timeout: timeout for executing the command.
:type timeout: int
"""
template_fields = ('command', )
template_fields_renderers = {"command": "powershell"}
def __init__(
self,
*,
winrm_hook: Optional[WinRMHook] = None,
ssh_conn_id: Optional[str] = None,
remote_host: Optional[str] = None,
command: Optional[str] = None,
ps_path: Optional[str] = None,
output_encoding: str = 'utf-8',
timeout: int = 10,
**kwargs,
) -> None:
super().__init__(**kwargs)
self.winrm_hook = winrm_hook
self.ssh_conn_id = ssh_conn_id
self.remote_host = remote_host
self.command = command
self.ps_path = ps_path
self.output_encoding = output_encoding
self.timeout = timeout
def execute(self, context: dict) -> Union[list, str]:
if self.ssh_conn_id and not self.winrm_hook:
self.log.info("Hook not found, creating...")
self.winrm_hook = WinRMHook(ssh_conn_id=self.ssh_conn_id)
if not self.winrm_hook:
raise AirflowException(
"Cannot operate without winrm_hook or ssh_conn_id.")
if self.remote_host is not None:
self.winrm_hook.remote_host = self.remote_host
if not self.command:
raise AirflowException(
"No command specified so nothing to execute here.")
winrm_client = self.winrm_hook.get_conn()
try:
if self.ps_path is not None:
self.log.info("Running command as powershell script: '%s'...",
self.command)
encoded_ps = b64encode(
self.command.encode('utf_16_le')).decode('ascii')
command_id = self.winrm_hook.winrm_protocol.run_command( # type: ignore[attr-defined]
winrm_client,
f'{self.ps_path} -encodedcommand {encoded_ps}')
else:
self.log.info("Running command: '%s'...", self.command)
command_id = self.winrm_hook.winrm_protocol.run_command( # type: ignore[attr-defined]
winrm_client, self.command)
# See: https://github.com/diyan/pywinrm/blob/master/winrm/protocol.py
stdout_buffer = []
stderr_buffer = []
command_done = False
while not command_done:
try:
(
stdout,
stderr,
return_code,
command_done,
) = self.winrm_hook.winrm_protocol._raw_get_command_output( # type: ignore[attr-defined]
winrm_client, command_id)
# Only buffer stdout if we need to so that we minimize memory usage.
if self.do_xcom_push:
stdout_buffer.append(stdout)
stderr_buffer.append(stderr)
for line in stdout.decode(
self.output_encoding).splitlines():
self.log.info(line)
for line in stderr.decode(
self.output_encoding).splitlines():
self.log.warning(line)
except WinRMOperationTimeoutError:
# this is an expected error when waiting for a
# long-running process, just silently retry
pass
self.winrm_hook.winrm_protocol.cleanup_command( # type: ignore[attr-defined]
winrm_client, command_id)
self.winrm_hook.winrm_protocol.close_shell(
winrm_client) # type: ignore[attr-defined]
except Exception as e:
raise AirflowException(f"WinRM operator error: {str(e)}")
if return_code == 0:
# returning output if do_xcom_push is set
enable_pickling = conf.getboolean('core', 'enable_xcom_pickling')
if enable_pickling:
return stdout_buffer
else:
return b64encode(b''.join(stdout_buffer)).decode(
self.output_encoding)
else:
error_msg = "Error running cmd: {}, return code: {}, error: {}".format(
self.command, return_code,
b''.join(stderr_buffer).decode(self.output_encoding))
raise AirflowException(error_msg)
class WinRMOperator(BaseOperator):
"""
WinRMOperator to execute commands on given remote host using the winrm_hook.
:param winrm_hook: predefined ssh_hook to use for remote execution
:type winrm_hook: airflow.providers.microsoft.winrm.hooks.winrm.WinRMHook
:param ssh_conn_id: connection id from airflow Connections
:type ssh_conn_id: str
:param remote_host: remote host to connect
:type remote_host: str
:param command: command to execute on remote host. (templated)
:type command: str
:param timeout: timeout for executing the command.
:type timeout: int
"""
template_fields = ('command', )
@apply_defaults
def __init__(self,
*,
winrm_hook=None,
ssh_conn_id=None,
remote_host=None,
command=None,
timeout=10,
**kwargs):
super().__init__(**kwargs)
self.winrm_hook = winrm_hook
self.ssh_conn_id = ssh_conn_id
self.remote_host = remote_host
self.command = command
self.timeout = timeout
def execute(self, context):
if self.ssh_conn_id and not self.winrm_hook:
self.log.info("Hook not found, creating...")
self.winrm_hook = WinRMHook(ssh_conn_id=self.ssh_conn_id)
if not self.winrm_hook:
raise AirflowException(
"Cannot operate without winrm_hook or ssh_conn_id.")
if self.remote_host is not None:
self.winrm_hook.remote_host = self.remote_host
if not self.command:
raise AirflowException(
"No command specified so nothing to execute here.")
winrm_client = self.winrm_hook.get_conn()
# pylint: disable=too-many-nested-blocks
try:
self.log.info("Running command: '%s'...", self.command)
command_id = self.winrm_hook.winrm_protocol.run_command(
winrm_client, self.command)
# See: https://github.com/diyan/pywinrm/blob/master/winrm/protocol.py
stdout_buffer = []
stderr_buffer = []
command_done = False
while not command_done:
try:
# pylint: disable=protected-access
stdout, stderr, return_code, command_done = \
self.winrm_hook.winrm_protocol._raw_get_command_output(
winrm_client,
command_id
)
# Only buffer stdout if we need to so that we minimize memory usage.
if self.do_xcom_push:
stdout_buffer.append(stdout)
stderr_buffer.append(stderr)
for line in stdout.decode('utf-8').splitlines():
self.log.info(line)
for line in stderr.decode('utf-8').splitlines():
self.log.warning(line)
except WinRMOperationTimeoutError:
# this is an expected error when waiting for a
# long-running process, just silently retry
pass
self.winrm_hook.winrm_protocol.cleanup_command(
winrm_client, command_id)
self.winrm_hook.winrm_protocol.close_shell(winrm_client)
except Exception as e:
raise AirflowException("WinRM operator error: {0}".format(str(e)))
if return_code == 0:
# returning output if do_xcom_push is set
enable_pickling = conf.getboolean('core', 'enable_xcom_pickling')
if enable_pickling:
return stdout_buffer
else:
return b64encode(b''.join(stdout_buffer)).decode('utf-8')
else:
error_msg = "Error running cmd: {0}, return code: {1}, error: {2}".format(
self.command, return_code,
b''.join(stderr_buffer).decode('utf-8'))
raise AirflowException(error_msg)
def test_get_conn_no_username(self, mock_protocol, mock_getuser):
winrm_hook = WinRMHook(remote_host='host', password='******')
winrm_hook.get_conn()
self.assertEqual(mock_getuser.return_value, winrm_hook.username)