def connect(self, re_string=''):
"""Open ssh or telnet connection to device
:param re_string: expected string
:return:
"""
try:
self._session_handler.connect(re_string)
if self._console_port:
self._connect_to_console(re_string)
except Exception as error_object:
if re.search('incompatible version',
str(error_object).lower()) is None:
self._session_handler = TelnetSession(self._console_username,
self._console_password,
self._console_host,
port=23,
logger=self.logger)
self._session_handler.connect(re_string)
if self._console_port:
self._connect_to_console(re_string)
else:
raise error_object
def test_eq(self, expect_session):
self._instance = TelnetSession(
self._hostname,
self._username,
self._password,
port=self._port,
on_session_start=self._on_session_start,
)
self.assertTrue(
self._instance.__eq__(
TelnetSession(
self._hostname,
self._username,
self._password,
port=self._port,
on_session_start=self._on_session_start,
)))
self.assertFalse(
self._instance.__eq__(
TelnetSession(
self._hostname,
"incorrect_username",
self._password,
port=self._port,
on_session_start=self._on_session_start,
)))
self.assertFalse(
self._instance.__eq__(
TelnetSession(
self._hostname,
self._username,
"incorrect_password",
port=self._port,
on_session_start=self._on_session_start,
)))
def test_init_attributes(self, connection_params, expect_session):
self._instance = TelnetSession(self._hostname,
self._username,
self._password,
port=self._port,
on_session_start=self._on_session_start)
mandatory_attributes = ['username', '_handler', 'password']
self.assertEqual(
len(
set(mandatory_attributes).difference(
set(self._instance.__dict__.keys()))), 0)
class TestTelnetSession(TestCase):
def setUp(self):
self._username = '******'
self._password = '******'
self._hostname = 'hostname'
self._port = 22
self._on_session_start = Mock()
@patch('cloudshell.cli.session.telnet_session.ExpectSession')
@patch('cloudshell.cli.session.telnet_session.ConnectionParams')
def test_init_attributes(self, connection_params, expect_session):
self._instance = TelnetSession(self._hostname,
self._username,
self._password,
port=self._port,
on_session_start=self._on_session_start)
mandatory_attributes = ['username', '_handler', 'password']
self.assertEqual(
len(
set(mandatory_attributes).difference(
set(self._instance.__dict__.keys()))), 0)
@patch('cloudshell.cli.session.ssh_session.ExpectSession')
def test_eq(self, expect_session):
self._instance = TelnetSession(self._hostname,
self._username,
self._password,
port=self._port,
on_session_start=self._on_session_start)
self.assertTrue(
self._instance.__eq__(
TelnetSession(self._hostname,
self._username,
self._password,
port=self._port,
on_session_start=self._on_session_start)))
self.assertFalse(
self._instance.__eq__(
TelnetSession(self._hostname,
'incorrect_username',
self._password,
port=self._port,
on_session_start=self._on_session_start)))
self.assertFalse(
self._instance.__eq__(
TelnetSession(self._hostname,
self._username,
'incorrect_password',
port=self._port,
on_session_start=self._on_session_start)))
def test_intialize_session(self, telnet_lib):
# Setup
telnet_mock = Mock()
telnet_lib.Telnet.return_value = telnet_mock
hostname = "localhost"
self._instance = TelnetSession(
hostname,
self._username,
"incorrect_password",
port=self._port,
on_session_start=self._on_session_start,
)
# Act
self._instance._initialize_session(">", logger=Mock())
# Assert
self.assertIsNotNone(self._instance._handler)
self.assertEqual(telnet_mock, self._instance._handler)
def _console_telnet_session(self):
console_port = int(self.resource_config.console_port)
return [
TelnetSession(
self.resource_config.console_server_ip_address,
self.username,
self.password,
console_port,
self.on_session_start,
),
]
def test_connect_actions(self):
# Setup
hostname = "localhost"
on_session_start = Mock()
self._instance = TelnetSession(
hostname,
self._username,
"password",
port=self._port,
on_session_start=on_session_start,
)
self._instance._timeout = 0
self._instance.hardware_expect = Mock(return_value="Done")
self._instance._handler = Mock()
# Act
self._instance._connect_actions(">", logger=Mock())
# Assert
self._instance.hardware_expect.assert_called_once()
on_session_start.assert_called_once()
def _set_session_types(self):
self._cs_session_handler()
if self.connection_type == 'Auto':
self.session_types = [
SSHSession(host=self.address,
username=self.user,
password=self.cs_session.DecryptPassword(
self.password_hash).Value),
TelnetSession(host=self.address,
username=self.user,
password=self.cs_session.DecryptPassword(
self.password_hash).Value)
]
elif self.connection_type == 'Console':
message = 'Unimplemented CLI Connection Type: "%s"' % self.connection_type
self.logger.error(message)
raise Cli.UnImplementedCliConnectionType(message)
elif self.connection_type == 'SSH':
self.session_types = [
SSHSession(host=self.address,
username=self.user,
password=self.cs_session.DecryptPassword(
self.password_hash).Value)
]
elif self.connection_type == 'TCP':
message = 'Unimplemented CLI Connection Type: "%s"' % self.connection_type
self.logger.error(message)
raise Cli.UnImplementedCliConnectionType(message)
elif self.connection_type == 'Telnet':
self.session_types = [
TelnetSession(host=self.address,
username=self.user,
password=self.cs_session.DecryptPassword(
self.password_hash).Value)
]
else:
message = 'Unsupported CLI Connection Type: "%s"' % self.connection_type
self.logger.error(message)
raise Cli.UnSupportedCliConnectionType(message)
def _cli_session_handler(self, context):
self._cs_session_handler(context)
logger = LogHelper.get_logger(context)
self.cli_connection_type = context.resource.attributes['CLI Connection Type']
self.cli_prompt_regex = context.resource.attributes['CLI Prompt Regular Expression']
self.mode = CommandMode(self.cli_prompt_regex)
self.session_types = None
logger.info('CLI Connection Type: "%s"' % self.cli_connection_type)
logger.info('CLI Prompt Regular Expression: "%s"' % self.cli_prompt_regex)
if self.cli_connection_type == 'Auto':
self.session_types = [SSHSession(host=self.address,
username=self.user,
password=self.cs_session.DecryptPassword(self.password_hash).Value),
TelnetSession(host=self.address,
username=self.user,
password=self.cs_session.DecryptPassword(self.password_hash).Value)]
elif self.cli_connection_type == 'Console':
message = 'Unimplemented CLI Connection Type: "%s"' % self.cli_connection_type
logger.error(message)
raise GenericResourceDriver.UnImplementedCliConnectionType(message)
elif self.cli_connection_type == 'SSH':
self.session_types = [SSHSession(host=self.address,
username=self.user,
password=self.cs_session.DecryptPassword(self.password_hash).Value)]
elif self.cli_connection_type == 'TCP':
message = 'Unimplemented CLI Connection Type: "%s"' % self.cli_connection_type
logger.error(message)
raise GenericResourceDriver.UnImplementedCliConnectionType(message)
elif self.cli_connection_type == 'Telnet':
self.session_types = [TelnetSession(host=self.address,
username=self.user,
password=self.cs_session.DecryptPassword(self.password_hash).Value)]
else:
message = 'Unsupported CLI Connection Type: "%s"' % self.cli_connection_type
logger.error(message)
raise GenericResourceDriver.UnSupportedCliConnectionType(message)
def __init__(self, *args, **kwargs):
"""Initiate console connection, by default open ssh to 22 port and login to console server
:param args:
:param kwargs: 'console_server_ip', 'console_server_user', 'console_server_password', 'console_port' mandatory'
:return:
"""
ExpectSession.__init__(self, None, *args, **kwargs)
self._console_username = kwargs['console_server_user']
self._console_password = kwargs['console_server_password']
self._console_host = kwargs['console_server_ip']
self._session_handler = SSHSession(self._console_username, self._console_password, self._console_host,
port=22, logger=self.logger)
self._console_port = kwargs['console_port']
def __init__(self, *args, **kwargs):
"""Initiate console connection, by default open ssh to 22 port and login to console server
:param args:
:param kwargs: 'console_server_ip', 'console_server_user', 'console_server_password', 'console_port' mandatory'
:return:
"""
ExpectSession.__init__(self, None, *args, **kwargs)
self._console_username = kwargs['console_server_user']
self._console_password = kwargs['console_server_password']
self._console_host = kwargs['console_server_ip']
self._session_handler = SSHSession(self._console_username,
self._console_password,
self._console_host,
port=22,
logger=self.logger)
self._console_port = kwargs['console_port']
def connect(self, re_string=''):
"""Open ssh or telnet connection to device
:param re_string: expected string
:return:
"""
try:
self._session_handler.connect(re_string)
if self._console_port:
self._connect_to_console(re_string)
except Exception as error_object:
if re.search('incompatible version', str(error_object).lower()) is None:
self._session_handler = TelnetSession(self._console_username, self._console_password,
self._console_host, port=23, logger=self._logger)
self._session_handler.connect(re_string)
if self._console_port:
self._connect_to_console(re_string)
else:
raise error_object
class ConsoleSession(ExpectSession):
def __init__(self, *args, **kwargs):
"""Initiate console connection, by default open ssh to 22 port and login to console server
:param args:
:param kwargs: 'console_server_ip', 'console_server_user', 'console_server_password', 'console_port' mandatory'
:return:
"""
ExpectSession.__init__(self, None, *args, **kwargs)
self._console_username = kwargs['console_server_user']
self._console_password = kwargs['console_server_password']
self._console_host = kwargs['console_server_ip']
self._session_handler = SSHSession(self._console_username,
self._console_password,
self._console_host,
port=22,
logger=self.logger)
self._console_port = kwargs['console_port']
def _clear_console(self, re_string=''):
"""Disconnect console if it's used by sending 'clear line xx' command
:param re_string:
:return:
"""
expect_map = OrderedDict()
expect_map['[Pp]assword:'] = lambda: self.send_line(
self._password, self.logger)
expect_map['\[confirm\]'] = lambda: self.send_line('', self.logger)
self.hardware_expect('enable',
re_string=re_string,
expect_map=expect_map)
output_str = self.hardware_expect('show hosts | i {0}'.format(
self._console_port),
re_string=re_string,
expect_map=expect_map)
pattern_str = '{0}\s+[\d][\d]([\d][\d])\s+\(.*\).*'.format(
self._console_port)
line_number = None
for line_str in output_str.splitlines():
result_match = re.search(pattern_str, line_str)
if result_match:
line_number = result_match.group(1)
break
if line_number:
self.hardware_expect('clear line {0}'.format(line_number),
re_string=re_string,
expect_map=expect_map)
def _connect_to_console(self, re_string=''):
"""Open console connection
:param re_string:
:return:
"""
expect_map = OrderedDict()
expect_map['[Ll]ogin:|[Uu]sername:'] = lambda: self.send_line(
self._username, self.logger)
expect_map['[Pp]assword:'] = lambda: self.send_line(
self._password, self.logger)
expect_map['[Cc]onnection refused'] = lambda: (self._clear_console(
re_string), self.send_line(self.console_port, self.logger))
self.hardware_expect(self._console_port, re_string=re_string)
def connect(self, re_string=''):
"""Open ssh or telnet connection to device
:param re_string: expected string
:return:
"""
try:
self._session_handler.connect(re_string)
if self._console_port:
self._connect_to_console(re_string)
except Exception as error_object:
if re.search('incompatible version',
str(error_object).lower()) is None:
self._session_handler = TelnetSession(self._console_username,
self._console_password,
self._console_host,
port=23,
logger=self.logger)
self._session_handler.connect(re_string)
if self._console_port:
self._connect_to_console(re_string)
else:
raise error_object
def disconnect(self):
"""Disconnect from device
:return:
"""
self._session_handler.disconnect()
def _send(self, command_string):
"""Send data to device
:param command_string: command string
:return:
"""
self._session_handler._send(command_string)
def _receive(self, timeout, logger):
"""Read data from device
:param timeout: time for waiting buffer
:return: str
"""
self._session_handler._receive(timeout=timeout)
class ConsoleSession(ExpectSession):
def __init__(self, *args, **kwargs):
"""Initiate console connection, by default open ssh to 22 port and login to console server
:param args:
:param kwargs: 'console_server_ip', 'console_server_user', 'console_server_password', 'console_port' mandatory'
:return:
"""
ExpectSession.__init__(self, None, *args, **kwargs)
self._console_username = kwargs['console_server_user']
self._console_password = kwargs['console_server_password']
self._console_host = kwargs['console_server_ip']
self._session_handler = SSHSession(self._console_username, self._console_password, self._console_host,
port=22, logger=self.logger)
self._console_port = kwargs['console_port']
def _clear_console(self, re_string=''):
"""Disconnect console if it's used by sending 'clear line xx' command
:param re_string:
:return:
"""
expect_map = OrderedDict()
expect_map['[Pp]assword:'] = lambda: self.send_line(self._password)
expect_map['\[confirm\]'] = lambda: self.send_line('')
self.hardware_expect('enable', re_string=re_string, expect_map=expect_map)
output_str = self.hardware_expect('show hosts | i {0}'.format(self._console_port), re_string=re_string,
expect_map=expect_map)
pattern_str = '{0}\s+[\d][\d]([\d][\d])\s+\(.*\).*'.format(self._console_port)
line_number = None
for line_str in output_str.splitlines():
result_match = re.search(pattern_str, line_str)
if result_match:
line_number = result_match.group(1)
break
if line_number:
self.hardware_expect('clear line {0}'.format(line_number), re_string=re_string, expect_map=expect_map)
def _connect_to_console(self, re_string=''):
"""Open console connection
:param re_string:
:return:
"""
expect_map = OrderedDict()
expect_map['[Ll]ogin:|[Uu]sername:'] = lambda: self.send_line(self._username)
expect_map['[Pp]assword:'] = lambda: self.send_line(self._password)
expect_map['[Cc]onnection refused'] = lambda: (self._clear_console(re_string),
self.send_line(self.console_port))
self.hardware_expect(self._console_port, re_string=re_string)
def connect(self, re_string=''):
"""Open ssh or telnet connection to device
:param re_string: expected string
:return:
"""
try:
self._session_handler.connect(re_string)
if self._console_port:
self._connect_to_console(re_string)
except Exception as error_object:
if re.search('incompatible version', str(error_object).lower()) is None:
self._session_handler = TelnetSession(self._console_username, self._console_password,
self._console_host, port=23, logger=self._logger)
self._session_handler.connect(re_string)
if self._console_port:
self._connect_to_console(re_string)
else:
raise error_object
def disconnect(self):
"""Disconnect from device
:return:
"""
self._session_handler.disconnect()
def _send(self, command_string):
"""Send data to device
:param command_string: command string
:return:
"""
self._session_handler._send(command_string)
def _receive(self, timeout=None):
"""Read data from device
:param timeout: time for waiting buffer
:return: str
"""
self._session_handler._receive(timeout=timeout)
def _telnet_session(self):
return TelnetSession(self.resource_address, self.username, self.password, self.port, self.on_session_start)
class TestTelnetSession(TestCase):
def setUp(self):
self._username = "******"
self._password = "******"
self._hostname = "hostname"
self._port = 22
self._on_session_start = Mock()
@patch("cloudshell.cli.session.telnet_session.ExpectSession")
@patch("cloudshell.cli.session.telnet_session.ConnectionParams")
def test_init_attributes(self, connection_params, expect_session):
self._instance = TelnetSession(
self._hostname,
self._username,
self._password,
port=self._port,
on_session_start=self._on_session_start,
)
mandatory_attributes = ["username", "_handler", "password"]
self.assertEqual(
len(
set(mandatory_attributes).difference(
set(self._instance.__dict__.keys()))),
0,
)
@patch("cloudshell.cli.session.ssh_session.ExpectSession")
def test_eq(self, expect_session):
self._instance = TelnetSession(
self._hostname,
self._username,
self._password,
port=self._port,
on_session_start=self._on_session_start,
)
self.assertTrue(
self._instance.__eq__(
TelnetSession(
self._hostname,
self._username,
self._password,
port=self._port,
on_session_start=self._on_session_start,
)))
self.assertFalse(
self._instance.__eq__(
TelnetSession(
self._hostname,
"incorrect_username",
self._password,
port=self._port,
on_session_start=self._on_session_start,
)))
self.assertFalse(
self._instance.__eq__(
TelnetSession(
self._hostname,
self._username,
"incorrect_password",
port=self._port,
on_session_start=self._on_session_start,
)))
@patch("cloudshell.cli.session.telnet_session.telnetlib")
def test_intialize_session(self, telnet_lib):
# Setup
telnet_mock = Mock()
telnet_lib.Telnet.return_value = telnet_mock
hostname = "localhost"
self._instance = TelnetSession(
hostname,
self._username,
"incorrect_password",
port=self._port,
on_session_start=self._on_session_start,
)
# Act
self._instance._initialize_session(">", logger=Mock())
# Assert
self.assertIsNotNone(self._instance._handler)
self.assertEqual(telnet_mock, self._instance._handler)
def test_connect_actions(self):
# Setup
hostname = "localhost"
on_session_start = Mock()
self._instance = TelnetSession(
hostname,
self._username,
"password",
port=self._port,
on_session_start=on_session_start,
)
self._instance._timeout = 0
self._instance.hardware_expect = Mock(return_value="Done")
self._instance._handler = Mock()
# Act
self._instance._connect_actions(">", logger=Mock())
# Assert
self._instance.hardware_expect.assert_called_once()
on_session_start.assert_called_once()