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"""scrapli.driver.core.juniper_junos.driver"""
from copy import deepcopy
from io import BytesIO
from typing import Any, Callable, Dict, List, Optional, Union
from scrapli.driver import NetworkDriver
from scrapli.driver.core.juniper_junos.base_driver import FAILED_WHEN_CONTAINS, PRIVS
from scrapli.driver.network.base_driver import PrivilegeLevel
def junos_on_open(conn: NetworkDriver) -> None:
"""
JunosDriver default on_open callable
Args:
conn: NetworkDriver object
Returns:
None
Raises:
N/A
"""
conn.acquire_priv(desired_priv=conn.default_desired_privilege_level)
conn.send_command(command="set cli screen-length 0")
conn.send_command(command="set cli screen-width 511")
conn.send_command(command="set cli complete-on-space off")
def junos_on_close(conn: NetworkDriver) -> None:
"""
JunosDriver default on_close callable
Args:
conn: NetworkDriver object
Returns:
None
Raises:
N/A
"""
conn.acquire_priv(desired_priv=conn.default_desired_privilege_level)
conn.channel.write(channel_input="exit")
conn.channel.send_return()
class JunosDriver(NetworkDriver):
def __init__(
self,
host: str,
privilege_levels: Optional[Dict[str, PrivilegeLevel]] = None,
default_desired_privilege_level: str = "exec",
port: Optional[int] = None,
auth_username: str = "",
auth_password: str = "",
auth_private_key: str = "",
auth_private_key_passphrase: str = "",
auth_strict_key: bool = True,
auth_bypass: bool = False,
auth_telnet_login_pattern: str = "",
auth_password_pattern: str = "",
auth_passphrase_pattern: str = "",
timeout_socket: float = 15.0,
timeout_transport: float = 30.0,
timeout_ops: float = 30.0,
comms_return_char: str = "\n",
ssh_config_file: Union[str, bool] = False,
ssh_known_hosts_file: Union[str, bool] = False,
on_init: Optional[Callable[..., Any]] = None,
on_open: Optional[Callable[..., Any]] = None,
on_close: Optional[Callable[..., Any]] = None,
transport: str = "system",
transport_options: Optional[Dict[str, Any]] = None,
channel_log: Union[str, bool, BytesIO] = False,
channel_log_mode: str = "write",
channel_lock: bool = False,
logging_uid: str = "",
auth_secondary: str = "",
failed_when_contains: Optional[List[str]] = None,
textfsm_platform: str = "juniper_junos",
genie_platform: str = "junos",
):
"""
JunosDriver Object
Please see `scrapli.driver.base.base_driver.Driver` for all "base driver" arguments!
# noqa: DAR101
Args:
privilege_levels: optional user provided privilege levels, if left None will default to
scrapli standard privilege levels
default_desired_privilege_level: string of name of default desired priv, this is the
priv level that is generally used to disable paging/set terminal width and things
like that upon first login, and is also the priv level scrapli will try to acquire
for normal "command" operations (`send_command`, `send_commands`)
auth_secondary: password to use for secondary authentication (enable)
on_open: callable that accepts the class instance as its only argument. this callable,
if provided, is executed immediately after authentication is completed. Common use
cases for this callable would be to disable paging or accept any kind of banner
message that prompts a user upon connection
on_close: callable that accepts the class instance as its only argument. this callable,
if provided, is executed immediately prior to closing the underlying transport.
Common use cases for this callable would be to save configurations prior to exiting,
or to logout properly to free up vtys or similar.
textfsm_platform: string name of textfsm parser platform
genie_platform: string name of cisco genie parser platform. Default: junos
failed_when_contains: List of strings that indicate a command/config has failed
Returns:
None
Raises:
N/A
"""
if privilege_levels is None:
privilege_levels = deepcopy(PRIVS)
if on_open is None:
on_open = junos_on_open
if on_close is None:
on_close = junos_on_close
if failed_when_contains is None:
failed_when_contains = FAILED_WHEN_CONTAINS.copy()
super().__init__(
host=host,
port=port,
auth_username=auth_username,
auth_password=auth_password,
auth_private_key=auth_private_key,
auth_private_key_passphrase=auth_private_key_passphrase,
auth_strict_key=auth_strict_key,
auth_bypass=auth_bypass,
auth_telnet_login_pattern=auth_telnet_login_pattern,
auth_password_pattern=auth_password_pattern,
auth_passphrase_pattern=auth_passphrase_pattern,
timeout_socket=timeout_socket,
timeout_transport=timeout_transport,
timeout_ops=timeout_ops,
comms_return_char=comms_return_char,
ssh_config_file=ssh_config_file,
ssh_known_hosts_file=ssh_known_hosts_file,
on_init=on_init,
on_open=on_open,
on_close=on_close,
transport=transport,
transport_options=transport_options,
channel_log=channel_log,
channel_log_mode=channel_log_mode,
channel_lock=channel_lock,
logging_uid=logging_uid,
privilege_levels=privilege_levels,
default_desired_privilege_level=default_desired_privilege_level,
auth_secondary=auth_secondary,
failed_when_contains=failed_when_contains,
textfsm_platform=textfsm_platform,
genie_platform=genie_platform,
)
def _abort_config(self) -> None:
"""
Abort Junos configuration session
Args:
N/A
Returns:
None
Raises:
N/A
"""
self.send_configs(["rollback 0", "exit"])
self._current_priv_level = self.privilege_levels["exec"]
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