netbox/netbox/ipam/filters.py

import django_filters
from netaddr import IPNetwork
from netaddr.core import AddrFormatError

from django.db.models import Q

from dcim.models import Site, Device, Interface
from extras.filters import CustomFieldFilterSet
from tenancy.models import Tenant
from utilities.filters import NullableModelMultipleChoiceFilter

from .models import Aggregate, IPAddress, Prefix, RIR, Role, Service, VLAN, VLANGroup, VRF


class VRFFilter(CustomFieldFilterSet, django_filters.FilterSet):
    q = django_filters.CharFilter(
        method='search',
        label='Search',
    )
    tenant_id = NullableModelMultipleChoiceFilter(
        name='tenant',
        queryset=Tenant.objects.all(),
        label='Tenant (ID)',
    )
    tenant = NullableModelMultipleChoiceFilter(
        name='tenant',
        queryset=Tenant.objects.all(),
        to_field_name='slug',
        label='Tenant (slug)',
    )

    def search(self, queryset, name, value):
        if not value.strip():
            return queryset
        return queryset.filter(
            Q(name__icontains=value) |
            Q(rd__icontains=value) |
            Q(description__icontains=value)
        )

    class Meta:
        model = VRF
        fields = ['name', 'rd']


class RIRFilter(django_filters.FilterSet):

    class Meta:
        model = RIR
        fields = ['is_private']


class AggregateFilter(CustomFieldFilterSet, django_filters.FilterSet):
    q = django_filters.CharFilter(
        method='search',
        label='Search',
    )
    rir_id = django_filters.ModelMultipleChoiceFilter(
        name='rir',
        queryset=RIR.objects.all(),
        label='RIR (ID)',
    )
    rir = django_filters.ModelMultipleChoiceFilter(
        name='rir__slug',
        queryset=RIR.objects.all(),
        to_field_name='slug',
        label='RIR (slug)',
    )

    class Meta:
        model = Aggregate
        fields = ['family', 'date_added']

    def search(self, queryset, name, value):
        if not value.strip():
            return queryset
        qs_filter = Q(description__icontains=value)
        try:
            prefix = str(IPNetwork(value.strip()).cidr)
            qs_filter |= Q(prefix__net_contains_or_equals=prefix)
        except AddrFormatError:
            pass
        return queryset.filter(qs_filter)


class PrefixFilter(CustomFieldFilterSet, django_filters.FilterSet):
    q = django_filters.CharFilter(
        method='search',
        label='Search',
    )
    parent = django_filters.CharFilter(
        method='search_by_parent',
        label='Parent prefix',
    )
    mask_length = django_filters.NumberFilter(
        method='filter_mask_length',
        label='Mask length',
    )
    vrf_id = NullableModelMultipleChoiceFilter(
        name='vrf_id',
        queryset=VRF.objects.all(),
        label='VRF',
    )
    vrf = NullableModelMultipleChoiceFilter(
        name='vrf',
        queryset=VRF.objects.all(),
        to_field_name='rd',
        label='VRF (RD)',
    )
    tenant_id = NullableModelMultipleChoiceFilter(
        name='tenant',
        queryset=Tenant.objects.all(),
        label='Tenant (ID)',
    )
    tenant = NullableModelMultipleChoiceFilter(
        name='tenant',
        queryset=Tenant.objects.all(),
        to_field_name='slug',
        label='Tenant (slug)',
    )
    site_id = NullableModelMultipleChoiceFilter(
        name='site',
        queryset=Site.objects.all(),
        label='Site (ID)',
    )
    site = NullableModelMultipleChoiceFilter(
        name='site',
        queryset=Site.objects.all(),
        to_field_name='slug',
        label='Site (slug)',
    )
    vlan_id = NullableModelMultipleChoiceFilter(
        name='vlan',
        queryset=VLAN.objects.all(),
        label='VLAN (ID)',
    )
    vlan_vid = django_filters.NumberFilter(
        name='vlan__vid',
        label='VLAN number (1-4095)',
    )
    role_id = NullableModelMultipleChoiceFilter(
        name='role',
        queryset=Role.objects.all(),
        label='Role (ID)',
    )
    role = NullableModelMultipleChoiceFilter(
        name='role',
        queryset=Role.objects.all(),
        to_field_name='slug',
        label='Role (slug)',
    )

    class Meta:
        model = Prefix
        fields = ['family', 'status']

    def search(self, queryset, name, value):
        if not value.strip():
            return queryset
        qs_filter = Q(description__icontains=value)
        try:
            prefix = str(IPNetwork(value.strip()).cidr)
            qs_filter |= Q(prefix__net_contains_or_equals=prefix)
        except AddrFormatError:
            pass
        return queryset.filter(qs_filter)

    def search_by_parent(self, queryset, name, value):
        value = value.strip()
        if not value:
            return queryset
        try:
            query = str(IPNetwork(value).cidr)
            return queryset.filter(prefix__net_contained_or_equal=query)
        except AddrFormatError:
            return queryset.none()

    def filter_mask_length(self, queryset, name, value):
        if not value:
            return queryset
        return queryset.filter(prefix__net_mask_length=value)


class IPAddressFilter(CustomFieldFilterSet, django_filters.FilterSet):
    q = django_filters.CharFilter(
        method='search',
        label='Search',
    )
    parent = django_filters.CharFilter(
        method='search_by_parent',
        label='Parent prefix',
    )
    mask_length = django_filters.NumberFilter(
        method='filter_mask_length',
        label='Mask length',
    )
    vrf_id = NullableModelMultipleChoiceFilter(
        name='vrf_id',
        queryset=VRF.objects.all(),
        label='VRF',
    )
    vrf = NullableModelMultipleChoiceFilter(
        name='vrf',
        queryset=VRF.objects.all(),
        to_field_name='rd',
        label='VRF (RD)',
    )
    tenant_id = NullableModelMultipleChoiceFilter(
        name='tenant',
        queryset=Tenant.objects.all(),
        label='Tenant (ID)',
    )
    tenant = NullableModelMultipleChoiceFilter(
        name='tenant',
        queryset=Tenant.objects.all(),
        to_field_name='slug',
        label='Tenant (slug)',
    )
    device_id = django_filters.ModelMultipleChoiceFilter(
        name='interface__device',
        queryset=Device.objects.all(),
        label='Device (ID)',
    )
    device = django_filters.ModelMultipleChoiceFilter(
        name='interface__device__name',
        queryset=Device.objects.all(),
        to_field_name='name',
        label='Device (name)',
    )
    interface_id = django_filters.ModelMultipleChoiceFilter(
        name='interface',
        queryset=Interface.objects.all(),
        label='Interface (ID)',
    )

    class Meta:
        model = IPAddress
        fields = ['family', 'status']

    def search(self, queryset, name, value):
        if not value.strip():
            return queryset
        qs_filter = Q(description__icontains=value)
        try:
            ipaddress = str(IPNetwork(value.strip()))
            qs_filter |= Q(address__net_host=ipaddress)
        except AddrFormatError:
            pass
        return queryset.filter(qs_filter)

    def search_by_parent(self, queryset, name, value):
        value = value.strip()
        if not value:
            return queryset
        try:
            query = str(IPNetwork(value.strip()).cidr)
            return queryset.filter(address__net_contained_or_equal=query)
        except AddrFormatError:
            return queryset.none()

    def filter_mask_length(self, queryset, name, value):
        if not value:
            return queryset
        return queryset.filter(address__net_mask_length=value)


class VLANGroupFilter(django_filters.FilterSet):
    site_id = NullableModelMultipleChoiceFilter(
        name='site',
        queryset=Site.objects.all(),
        label='Site (ID)',
    )
    site = NullableModelMultipleChoiceFilter(
        name='site',
        queryset=Site.objects.all(),
        to_field_name='slug',
        label='Site (slug)',
    )

    class Meta:
        model = VLANGroup
        fields = ['name']


class VLANFilter(CustomFieldFilterSet, django_filters.FilterSet):
    q = django_filters.CharFilter(
        method='search',
        label='Search',
    )
    site_id = NullableModelMultipleChoiceFilter(
        name='site',
        queryset=Site.objects.all(),
        label='Site (ID)',
    )
    site = NullableModelMultipleChoiceFilter(
        name='site',
        queryset=Site.objects.all(),
        to_field_name='slug',
        label='Site (slug)',
    )
    group_id = NullableModelMultipleChoiceFilter(
        name='group',
        queryset=VLANGroup.objects.all(),
        label='Group (ID)',
    )
    group = NullableModelMultipleChoiceFilter(
        name='group',
        queryset=VLANGroup.objects.all(),
        to_field_name='slug',
        label='Group',
    )
    tenant_id = NullableModelMultipleChoiceFilter(
        name='tenant',
        queryset=Tenant.objects.all(),
        label='Tenant (ID)',
    )
    tenant = NullableModelMultipleChoiceFilter(
        name='tenant',
        queryset=Tenant.objects.all(),
        to_field_name='slug',
        label='Tenant (slug)',
    )
    role_id = NullableModelMultipleChoiceFilter(
        name='role',
        queryset=Role.objects.all(),
        label='Role (ID)',
    )
    role = NullableModelMultipleChoiceFilter(
        name='role',
        queryset=Role.objects.all(),
        to_field_name='slug',
        label='Role (slug)',
    )

    class Meta:
        model = VLAN
        fields = ['name', 'vid', 'status']

    def search(self, queryset, name, value):
        if not value.strip():
            return queryset
        qs_filter = Q(name__icontains=value) | Q(description__icontains=value)
        try:
            qs_filter |= Q(vid=int(value.strip()))
        except ValueError:
            pass
        return queryset.filter(qs_filter)


class ServiceFilter(django_filters.FilterSet):
    device_id = django_filters.ModelMultipleChoiceFilter(
        name='device',
        queryset=Device.objects.all(),
        label='Device (ID)',
    )
    device = django_filters.ModelMultipleChoiceFilter(
        name='device__name',
        queryset=Device.objects.all(),
        to_field_name='name',
        label='Device (name)',
    )

    class Meta:
        model = Service
        fields = ['name', 'protocol', 'port']