Files
wireguard_webadmin/wireguard_peer/functions.py

89 lines
3.2 KiB
Python

import subprocess
from typing import Any, Dict, Optional, Tuple
from django.utils.translation import gettext_lazy as _
from routing_templates.models import RoutingTemplate
from wireguard.models import Peer, PeerAllowedIP, WireGuardInstance
def generate_peer_default(wireguard_instance):
private_key = subprocess.check_output('wg genkey', shell=True).decode('utf-8').strip()
public_key = subprocess.check_output(f'echo {private_key} | wg pubkey', shell=True).decode('utf-8').strip()
pre_shared_key = subprocess.check_output('wg genpsk', shell=True).decode('utf-8').strip()
default_routing_template = RoutingTemplate.objects.filter(wireguard_instance=wireguard_instance, default_template=True).first()
free_ip_address = wireguard_instance.next_available_ip_address
return {
'name': '',
'public_key': public_key,
'pre_shared_key': pre_shared_key,
'persistent_keepalive': 25,
'private_key': private_key,
'wireguard_instance': wireguard_instance,
'allowed_ip': free_ip_address,
'default_routing_template': default_routing_template,
}
def func_create_new_peer(
wireguard_instance: WireGuardInstance,
overrides: Optional[Dict[str, Any]] = None,
) -> Tuple[Optional[Peer], str]:
"""
Creates a new Peer using generate_peer_default(), allowing optional overrides.
Supported override keys:
- name
- public_key
- pre_shared_key
- persistent_keepalive
- private_key
- allowed_ip
- default_routing_template
- allowed_ip_netmask (defaults to 32)
"""
new_peer_data = generate_peer_default(wireguard_instance)
overrides = overrides or {}
# avoid accidental mismatch / footguns
forbidden_keys = {'wireguard_instance'}
for k in forbidden_keys:
if k in overrides:
raise ValueError(f'Override not allowed: {k}')
if overrides.get('allowed_ip'):
if not wireguard_instance.check_available_ip_address(overrides.get('allowed_ip')):
return None, str(_('Error creating peer|The specified IP address is not available.'))
# apply overrides last
new_peer_data.update(overrides)
allowed_ip_netmask = int(new_peer_data.get('allowed_ip_netmask', 32) or 32)
if new_peer_data.get('allowed_ip'):
new_peer = Peer.objects.create(
name=new_peer_data.get('name', ''),
public_key=new_peer_data['public_key'],
pre_shared_key=new_peer_data['pre_shared_key'],
persistent_keepalive=new_peer_data.get('persistent_keepalive', 25),
private_key=new_peer_data.get('private_key'),
wireguard_instance=wireguard_instance,
routing_template=new_peer_data.get('default_routing_template'),
)
PeerAllowedIP.objects.create(
config_file='server',
peer=new_peer,
allowed_ip=new_peer_data['allowed_ip'],
priority=0,
netmask=allowed_ip_netmask,
)
message = str(_('Peer created|Peer created successfully.'))
return new_peer, message
message = str(_('Error creating peer|No available IP address found for peer creation.'))
return None, message