uncloud/uncloud_net/models.py
2020-12-13 11:38:41 +01:00

99 lines
2.8 KiB
Python

import uuid
import ipaddress
from django.db import models
from django.contrib.auth import get_user_model
from django.core.validators import MinValueValidator, MaxValueValidator
from django.core.exceptions import FieldError, ValidationError
from uncloud_pay.models import Order
class WireGuardVPNPool(models.Model):
"""
Network address pools from which VPNs can be created
"""
network = models.GenericIPAddressField(unique=True)
network_mask = models.IntegerField(validators=[MinValueValidator(0),
MaxValueValidator(128)])
subnetwork_mask = models.IntegerField(validators=[
MinValueValidator(0),
MaxValueValidator(128)
])
vpn_server_hostname = models.CharField(max_length=256)
wireguard_private_key = models.CharField(max_length=48)
class WireGuardVPN(models.Model):
"""
Created VPNNetworks
"""
vpnpool = models.ForeignKey(WireGuardVPNPool,
on_delete=models.CASCADE)
address = models.GenericIPAddressField(primary_key=True)
wireguard_public_key = models.CharField(max_length=48)
################################################################################
class MACAdress(models.Model):
default_prefix = 0x420000000000
class ReverseDNSEntry(models.Model):
"""
A reverse DNS entry
"""
owner = models.ForeignKey(get_user_model(),
on_delete=models.CASCADE)
ip_address = models.GenericIPAddressField(null=False, unique=True)
name = models.CharField(max_length=253, null=False)
@property
def reverse_pointer(self):
return ipaddress.ip_address(self.ip_address).reverse_pointer
def implement(self):
"""
The implement function implements the change
"""
# Get all DNS entries (?) / update this DNS entry
# convert to DNS name
#
pass
def save(self, *args, **kwargs):
# Product.objects.filter(config__parameters__contains='reverse_dns_network')
# FIXME: check if order is still active / not replaced
allowed = False
product = None
for order in Order.objects.filter(config__parameters__reverse_dns_network__isnull=False,
owner=self.owner):
network = order.config['parameters']['reverse_dns_network']
net = ipaddress.ip_network(network)
addr = ipaddress.ip_address(self.ip_address)
if addr in net:
allowed = True
product = order.product
break
if not allowed:
raise ValidationError(f"User {self.owner} does not have the right to create reverse DNS entry for {self.ip_address}")
super().save(*args, **kwargs)
def __str__(self):
return f"{self.ip_address} - {self.name}"