mirror of
https://github.com/GNS3/gns3-server.git
synced 2026-08-27 12:30:13 +03:00
7e8c515a3c
New GET /v3/netmiko/device_types endpoint returns the device types supported by the netmiko library installed on the server, including the gns3-copilot custom drivers, so the web UI can populate the netmiko_device_type dropdown on templates and nodes. The list is read at runtime from netmiko's ssh_dispatcher.CLASS_MAPPER registry (the same table ConnectHandler dispatches on), filtered to drop the '_ssh' aliases and the 'autodetect' pseudo type, and cached for the process lifetime. Returns 501 when netmiko is not installed (ai-features extra).
103 lines
3.6 KiB
Python
103 lines
3.6 KiB
Python
#!/usr/bin/env python
|
|
#
|
|
# Copyright (C) 2020 GNS3 Technologies Inc.
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
"""
|
|
API routes for Netmiko metadata.
|
|
"""
|
|
|
|
from typing import Optional
|
|
|
|
from fastapi import APIRouter, Depends, HTTPException, status
|
|
|
|
from gns3server import schemas
|
|
|
|
from .dependencies.authentication import get_current_active_user
|
|
|
|
import logging
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
router = APIRouter()
|
|
|
|
# Computed once per process: the list only changes if the installed
|
|
# Netmiko library changes, which requires a server restart anyway.
|
|
_device_types_cache: Optional[schemas.NetmikoDeviceTypeList] = None
|
|
|
|
|
|
def _load_netmiko_device_types() -> schemas.NetmikoDeviceTypeList:
|
|
"""
|
|
Build the list of device types supported by the installed Netmiko library.
|
|
|
|
Imports Netmiko and the GNS3-copilot custom drivers (which register
|
|
additional 'gns3_*' device types into Netmiko's CLASS_MAPPER on import),
|
|
then filters out the '<type>_ssh' aliases and the 'autodetect'
|
|
pseudo device type.
|
|
|
|
Raises:
|
|
ImportError: If Netmiko is not installed (ai-features extra).
|
|
"""
|
|
|
|
import importlib
|
|
|
|
import netmiko
|
|
# "from netmiko import ssh_dispatcher" is shadowed by a function of the same
|
|
# name in netmiko's __init__, so import the module through importlib
|
|
sd = importlib.import_module("netmiko.ssh_dispatcher")
|
|
|
|
# Importing the package auto-registers all custom drivers (in case nothing
|
|
# imported them yet); failures are logged by the package itself, do not
|
|
# fail the whole endpoint.
|
|
try:
|
|
from gns3server.agent.gns3_copilot.utils import custom_netmiko # noqa: F401
|
|
except Exception as e:
|
|
log.warning(f"Could not register GNS3-copilot custom Netmiko drivers: {e}")
|
|
|
|
# Custom drivers all use the 'gns3_' prefix by convention, which is more
|
|
# reliable than diffing CLASS_MAPPER around the import: the drivers may
|
|
# already be registered when the copilot package got imported at startup.
|
|
device_types = [
|
|
schemas.NetmikoDeviceType(name=name, telnet="_telnet" in name, custom=name.startswith("gns3_"))
|
|
for name in sorted(sd.CLASS_MAPPER.keys())
|
|
if not name.endswith("_ssh") and name != "autodetect"
|
|
]
|
|
return schemas.NetmikoDeviceTypeList(netmiko_version=netmiko.__version__, device_types=device_types)
|
|
|
|
|
|
@router.get(
|
|
"/device_types",
|
|
response_model=schemas.NetmikoDeviceTypeList,
|
|
dependencies=[Depends(get_current_active_user)]
|
|
)
|
|
def get_netmiko_device_types() -> schemas.NetmikoDeviceTypeList:
|
|
"""
|
|
Return the device types supported by the Netmiko library installed on this server.
|
|
|
|
Required privilege: None (authenticated users only)
|
|
"""
|
|
|
|
global _device_types_cache
|
|
if _device_types_cache is None:
|
|
try:
|
|
_device_types_cache = _load_netmiko_device_types()
|
|
except ImportError:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_501_NOT_IMPLEMENTED,
|
|
detail="Netmiko is not available. Install AI dependencies with: pip install gns3-server[ai-features]"
|
|
)
|
|
return _device_types_cache
|