# Copyright 2012 NEC Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
Views for managing Neutron Subnets.
"""
from django.core.urlresolvers import reverse
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import tabs
from horizon.utils import memoized
from horizon import workflows
from openstack_dashboard import api
from openstack_dashboard.dashboards.project.networks.subnets \
import tables as project_tables
from openstack_dashboard.dashboards.project.networks.subnets \
import tabs as project_tabs
from openstack_dashboard.dashboards.project.networks.subnets import utils
from openstack_dashboard.dashboards.project.networks.subnets \
import workflows as project_workflows
[docs]class CreateView(workflows.WorkflowView):
workflow_class = project_workflows.CreateSubnet
@memoized.memoized_method
[docs] def get_object(self):
try:
network_id = self.kwargs["network_id"]
network = api.neutron.network_get(self.request, network_id)
return network
except Exception:
redirect = reverse('horizon:project:networks:index')
msg = _("Unable to retrieve network.")
exceptions.handle(self.request, msg, redirect=redirect)
[docs] def get_initial(self):
network = self.get_object()
return {"network_id": self.kwargs['network_id'],
"network_name": network.name_or_id}
[docs]class UpdateView(workflows.WorkflowView):
workflow_class = project_workflows.UpdateSubnet
@memoized.memoized_method
def _get_object(self, *args, **kwargs):
subnet_id = self.kwargs['subnet_id']
try:
return api.neutron.subnet_get(self.request, subnet_id)
except Exception:
redirect = reverse("horizon:project:networks:index")
msg = _('Unable to retrieve subnet details')
exceptions.handle(self.request, msg, redirect=redirect)
[docs] def get_initial(self):
initial = super(UpdateView, self).get_initial()
subnet = self._get_object()
initial['network_id'] = self.kwargs['network_id']
initial['subnet_id'] = subnet['id']
initial['subnet_name'] = subnet['name']
for key in ('cidr', 'ip_version', 'enable_dhcp'):
initial[key] = subnet[key]
initial['gateway_ip'] = subnet['gateway_ip'] or ''
initial['no_gateway'] = (subnet['gateway_ip'] is None)
if initial['ip_version'] == 6:
initial['ipv6_modes'] = utils.get_ipv6_modes_menu_from_attrs(
subnet['ipv6_ra_mode'], subnet['ipv6_address_mode'])
initial['dns_nameservers'] = '\n'.join(subnet['dns_nameservers'])
pools = ['%s,%s' % (p['start'], p['end'])
for p in subnet['allocation_pools']]
initial['allocation_pools'] = '\n'.join(pools)
routes = ['%s,%s' % (r['destination'], r['nexthop'])
for r in subnet['host_routes']]
initial['host_routes'] = '\n'.join(routes)
return initial
[docs]class DetailView(tabs.TabView):
tab_group_class = project_tabs.SubnetDetailTabs
template_name = 'horizon/common/_detail.html'
page_title = "{{ subnet.name|default:subnet.id }}"
@memoized.memoized_method
[docs] def get_data(self):
subnet_id = self.kwargs['subnet_id']
try:
subnet = api.neutron.subnet_get(self.request, subnet_id)
except Exception:
subnet = []
msg = _('Unable to retrieve subnet details.')
exceptions.handle(self.request, msg,
redirect=self.get_redirect_url())
else:
if subnet.ip_version == 6:
ipv6_modes = utils.get_ipv6_modes_menu_from_attrs(
subnet.ipv6_ra_mode, subnet.ipv6_address_mode)
subnet.ipv6_modes_desc = utils.IPV6_MODE_MAP.get(ipv6_modes)
if ('subnetpool_id' in subnet and
subnet.subnetpool_id and
api.neutron.is_extension_supported(self.request,
'subnet_allocation')):
subnetpool = api.neutron.subnetpool_get(self.request,
subnet.subnetpool_id)
subnet.subnetpool_name = subnetpool.name
return subnet
@memoized.memoized_method
[docs] def get_network(self, network_id):
try:
network = api.neutron.network_get(self.request, network_id)
except Exception:
network = {}
msg = _('Unable to retrieve network details.')
exceptions.handle(self.request, msg)
return network
[docs] def get_context_data(self, **kwargs):
context = super(DetailView, self).get_context_data(**kwargs)
subnet = self.get_data()
network = self.get_network(subnet.network_id)
subnet.network_name = network.get('name')
network_nav = subnet.network_name or subnet.network_id
table = project_tables.SubnetsTable(self.request,
network_id=subnet.network_id)
# TODO(robcresswell) Add URL for "Subnets" crumb after bug/1416838
breadcrumb = [
(_("Networks"), self.get_redirect_url()),
(network_nav, reverse('horizon:project:networks:detail',
args=(subnet.network_id,))),
(_("Subnets"),), ]
context["custom_breadcrumb"] = breadcrumb
context["subnet"] = subnet
context["url"] = self.get_redirect_url()
context["actions"] = table.render_row_actions(subnet)
return context
[docs] def get_tabs(self, request, *args, **kwargs):
subnet = self.get_data()
return self.tab_group_class(request, subnet=subnet, **kwargs)
@staticmethod
[docs] def get_redirect_url():
return reverse('horizon:project:networks:index')