netbox-ddns/netbox_ddns/views.py

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from django.contrib import messages
from django.contrib.auth.mixins import PermissionRequiredMixin
from django.http import Http404
from django.shortcuts import get_object_or_404, redirect
from django.urls import reverse
from django.utils.http import is_safe_url
from django.utils.translation import gettext as _
from django.views import View
from ipam.models import IPAddress
from netbox_ddns.background_tasks import dns_create
from netbox_ddns.forms import ExtraDNSNameEditForm
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from netbox_ddns.models import DNSStatus, ExtraDNSName
from netbox_ddns.utils import normalize_fqdn
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try:
# NetBox <= 2.9
from utilities.views import ObjectDeleteView, ObjectEditView
except ImportError:
# NetBox >= 2.10
from netbox.views.generic import ObjectDeleteView, ObjectEditView
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# noinspection PyMethodMayBeStatic
class ExtraDNSNameObjectMixin:
def get_object(self, kwargs):
if 'ipaddress_pk' not in kwargs:
raise Http404
ip_address = get_object_or_404(IPAddress, pk=kwargs['ipaddress_pk'])
if 'pk' in kwargs:
return get_object_or_404(ExtraDNSName, ip_address=ip_address, pk=kwargs['pk'])
return ExtraDNSName(ip_address=ip_address)
def get_return_url(self, request, obj=None):
# First, see if `return_url` was specified as a query parameter or form data. Use this URL only if it's
# considered safe.
query_param = request.GET.get('return_url') or request.POST.get('return_url')
if query_param and is_safe_url(url=query_param, allowed_hosts=request.get_host()):
return query_param
# Otherwise check we have an object and can return to its ip-address
elif obj is not None and obj.ip_address is not None:
return obj.ip_address.get_absolute_url()
# If all else fails, return home. Ideally this should never happen.
return reverse('home')
class ExtraDNSNameCreateView(PermissionRequiredMixin, ExtraDNSNameObjectMixin, ObjectEditView):
permission_required = 'netbox_ddns.add_extradnsname'
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queryset = ExtraDNSName.objects.all()
model_form = ExtraDNSNameEditForm
class ExtraDNSNameEditView(ExtraDNSNameCreateView):
permission_required = 'netbox_ddns.change_extradnsname'
class ExtraDNSNameDeleteView(PermissionRequiredMixin, ExtraDNSNameObjectMixin, ObjectDeleteView):
permission_required = 'netbox_ddns.delete_extradnsname'
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queryset = ExtraDNSName.objects.all()
class IPAddressDNSNameRecreateView(PermissionRequiredMixin, View):
permission_required = 'ipam.change_ipaddress'
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# noinspection PyMethodMayBeStatic
def post(self, request, ipaddress_pk):
ip_address = get_object_or_404(IPAddress, pk=ipaddress_pk)
new_address = ip_address.address.ip
new_dns_name = normalize_fqdn(ip_address.dns_name)
updated_names = []
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if new_dns_name:
status, created = DNSStatus.objects.get_or_create(ip_address=ip_address)
dns_create.delay(
dns_name=new_dns_name,
address=new_address,
status=status,
)
updated_names.append(new_dns_name)
for extra in ip_address.extradnsname_set.all():
new_address = extra.ip_address.address.ip
new_dns_name = extra.name
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dns_create.delay(
dns_name=new_dns_name,
address=new_address,
status=extra,
reverse=False,
)
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updated_names.append(new_dns_name)
if updated_names:
messages.info(request, _("Updating DNS for {names}").format(names=', '.join(updated_names)))
return redirect('ipam:ipaddress', pk=ip_address.pk)