def test_connective(self, local_port=None):
if local_port is None:
local_port = self.port
if self.password and not no_special_chars(self.password):
return False, _("Password should not contains special characters")
client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
proxy = paramiko.SSHClient()
proxy.set_missing_host_key_policy(paramiko.AutoAddPolicy())
try:
proxy.connect(self.ip, port=self.port,
username=self.username,
password=self.password,
pkey=self.private_key_obj)
except(paramiko.AuthenticationException,
paramiko.BadAuthenticationType,
paramiko.SSHException,
paramiko.ssh_exception.NoValidConnectionsError) as e:
return False, str(e)
try:
sock = proxy.get_transport().open_channel(
'direct-tcpip', ('127.0.0.1', local_port), ('127.0.0.1', 0)
)
client.connect("127.0.0.1", port=local_port,
username=self.username,
password=self.password,
key_filename=self.private_key_file,
sock=sock,
timeout=5)
except (paramiko.SSHException, paramiko.ssh_exception.SSHException,
paramiko.AuthenticationException, TimeoutError) as e:
return False, str(e)
finally:
client.close()
return True, None
def __call__(self, value):
if not no_special_chars(value):
raise serializers.ValidationError(
_("Should not contains special characters"))