uncloud/uncloud_net/services.py
2020-12-28 23:35:34 +01:00

66 lines
2.3 KiB
Python

from django.db import transaction
from .models import *
from .selectors import *
from .tasks import *
@transaction.atomic
def create_wireguard_vpn(owner, public_key, network_mask):
# Check if the user has a membership.
#------------------------------------
# If yes, user is eligible for API access and 2 VPNs
# If user already has 2 VPNs, we deduct from the credit
# If deduction is higher than the allowed credit, we fail
#
# Check if the user has suitable balance
# Create order
#
return create_wireguard_vpn_tech(owner, public_key, network_mask)
@transaction.atomic
def create_wireguard_vpn_tech(owner, public_key, network_mask):
pool = get_suitable_pools(network_mask)[0]
count = pool.wireguardvpn_set.count()
# Try re-using previously used networks first
try:
free_lease = WireGuardVPNFreeLeases.objects.get(vpnpool=pool)
vpn = WireGuardVPN.objects.create(owner=owner,
vpnpool=pool,
pool_index=free_lease.pool_index,
wireguard_public_key=public_key)
free_lease.delete()
except WireGuardVPNFreeLeases.DoesNotExist:
# First object
if count == 0:
vpn = WireGuardVPN.objects.create(owner=owner,
vpnpool=pool,
pool_index=0,
wireguard_public_key=public_key)
else: # Select last network and try +1 it
last_net = WireGuardVPN.objects.filter(vpnpool=pool).order_by('pool_index').last()
next_index = last_net.pool_index + 1
if next_index <= pool.max_pool_index:
vpn = WireGuardVPN.objects.create(owner=owner,
vpnpool=pool,
pool_index=next_index,
wireguard_public_key=public_key)
config = pool.wireguard_config
server = pool.vpn_server_hostname
wg_name = pool.wg_name
configure_wireguard_server_on_host.apply_async((wg_name, config),
queue=server)
return vpn