from django import forms from django.db.models import Q from whoisdb.models import InetNum from whoisdb.forms import MntFormMixin from whoisdb.validators import IP46CIDRValidator from .models import Domain, Nameserver, ReverseZone import re import ipaddress class DomainForm(MntFormMixin, forms.ModelForm): class Meta: model = Domain fields = ['name', 'nameservers', 'mnt_by', 'admin_c'] def __init__(self, user, *args, **kwargs): self._user = user super(DomainForm, self).__init__(*args, **kwargs) mnts = self._user.maintainer_set.all() self.fields['nameservers'].queryset = Nameserver.objects.filter(Q(mnt_by__in=mnts)) instance = getattr(self, "instance", None) self._create = not (instance and instance.pk) if not self._create: self.fields['name'].disabled = True self.fields['nameservers'].queryset |= self.instance.nameservers.all() self.fields['nameservers'].queryset.distinct() def clean_name(self): name = self.cleaned_data['name'].lower() if self._create: if not name.endswith("."): name += "." if not name.endswith("dn."): raise forms.ValidationError("Only .dn domains can be registered at this point") if name.count(".") > 2: raise forms.ValidationError("No subdomains can be registered") if not re.match("^[a-z0-9.-]+$", name): raise forms.ValidationError("Only a-z, 0-9 and - are allowed inside the domain name") try: Domain.objects.get(name=name) raise forms.ValidationError("Domain already exists") except Domain.DoesNotExist: pass return name class NameserverForm(MntFormMixin, forms.ModelForm): class Meta: model = Nameserver fields = ['name', 'glueIPv4', 'glueIPv6', 'mnt_by', 'admin_c'] def __init__(self, user, *args, **kwargs): self._user = user super(NameserverForm, self).__init__(*args, **kwargs) instance = getattr(self, "instance", None) self._create = not (instance and instance.pk) def clean_name(self): name = self.cleaned_data['name'].lower().strip() if not name.endswith("."): name += "." if name.count(".") <= 2: raise forms.ValidationError("Nameserver must be inside a domain (e.g. ns1.noot.dn.)") zone = ".".join(name.split(".")[-3:]) mnts = self._user.maintainer_set.all() domains = Domain.objects.filter(mnt_by__in=mnts) found = False for domain in domains: if domain.name == zone: found = True break if not found: raise forms.ValidationError("This nameserver is not under a domain you control.") return name def clean(self): cleaned_data = super(NameserverForm, self).clean() return cleaned_data class ReverseZoneForm(forms.ModelForm): prefix = forms.CharField(validators=[IP46CIDRValidator]) class Meta: model = ReverseZone fields = ['parentNet', 'nameservers'] def __init__(self, user, *args, **kwargs): self._user = user super(ReverseZoneForm, self).__init__(*args, **kwargs) instance = getattr(self, "instance", None) self._create = not (instance and instance.pk) mnts = self._user.maintainer_set.all() self.fields['parentNet'].queryset = InetNum.objects.filter(Q(mnt_by__in=mnts) | Q(mnt_lower__in=mnts)).distinct() self.fields['nameservers'].queryset = Nameserver.objects.filter(Q(mnt_by__in=mnts)) if not self._create: self.fields['prefix'].disabled = True self.fields['nameservers'].queryset |= self.instance.nameservers.all() self.fields['nameservers'].queryset.distinct() def clean(self): cleaned_data = super(ReverseZoneForm, self).clean() if not self.errors: if self._create: net = ipaddress.ip_network(cleaned_data['prefix']) parentNet = cleaned_data['parentNet'].getNetwork() if net.network_address not in parentNet: raise forms.ValidationError("Given prefix %s is not inside of parent netblock %s" % (net, parentNet)) # For now just check all the zones... #zones = ReverseZone.objects.filter(parentNet=cleaned_data['parentNet']) zones = ReverseZone.objects.all() for zone in zones: if net.network_address in zone.parentNet.getNetwork(): raise forms.ValidationError("Given prefix already has a reverse zone object associated to it: %s" % zone) self.instance.address = str(net.network_address) self.instance.netmask = net.prefixlen return cleaned_data