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# Copyright 2012, Nachi Ueno, NTT MCL, Inc.
# Copyright 2013, Big Switch Networks, Inc.
#
# 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 Routers.
"""
from collections import OrderedDict
from django.urls import reverse
from django.urls import reverse_lazy
from django.utils.translation import pgettext_lazy
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import forms
from horizon import messages
from horizon import tables
from horizon import tabs
from horizon.utils import memoized
from openstack_dashboard import api
from openstack_dashboard.utils import filters
from openstack_dashboard.dashboards.project.routers\
import forms as project_forms
from openstack_dashboard.dashboards.project.routers import tables as rtables
from openstack_dashboard.dashboards.project.routers import tabs as rdtabs
class IndexView(tables.DataTableView):
table_class = rtables.RoutersTable
page_title = _("Routers")
FILTERS_MAPPING = {'admin_state_up': {_("up"): True, _("down"): False}}
def _get_routers(self, search_opts=None):
try:
search_opts = self.get_filters(
filters=search_opts, filters_map=self.FILTERS_MAPPING)
tenant_id = self.request.user.tenant_id
routers = api.neutron.router_list(self.request,
tenant_id=tenant_id,
**search_opts)
except Exception:
routers = []
exceptions.handle(self.request,
_('Unable to retrieve router list.'))
ext_net_dict = self._list_external_networks()
for r in routers:
r.name = r.name_or_id
self._set_external_network(r, ext_net_dict)
return routers
def get_data(self):
routers = self._get_routers()
return routers
def _list_external_networks(self):
try:
search_opts = {'router:external': True}
ext_nets = api.neutron.network_list(self.request,
**search_opts)
ext_net_dict = OrderedDict((n['id'], n.name_or_id)
for n in ext_nets)
except Exception:
msg = _('Unable to retrieve a list of external networks.')
exceptions.handle(self.request, msg)
ext_net_dict = {}
return ext_net_dict
def _set_external_network(self, router, ext_net_dict):
gateway_info = router.external_gateway_info
if gateway_info:
ext_net_id = gateway_info['network_id']
if ext_net_id in ext_net_dict:
gateway_info['network'] = ext_net_dict[ext_net_id]
else:
msg_params = {'ext_net_id': ext_net_id, 'router_id': router.id}
msg = _('External network "%(ext_net_id)s" expected but not '
'found for router "%(router_id)s".') % msg_params
messages.error(self.request, msg)
# gateway_info['network'] is just the network name, so putting
# in a smallish error message in the table is reasonable.
# Translators: The usage is "<UUID of ext_net> (Not Found)"
gateway_info['network'] = pgettext_lazy(
'External network not found',
'%s (Not Found)') % ext_net_id
class DetailView(tabs.TabbedTableView):
tab_group_class = rdtabs.RouterDetailTabs
template_name = 'horizon/common/_detail.html'
failure_url = reverse_lazy('horizon:project:routers:index')
network_url = 'horizon:project:networks:detail'
page_title = "{{ router.name|default:router.id }}"
@memoized.memoized_method
def _get_data(self):
try:
router_id = self.kwargs['router_id']
router = api.neutron.router_get(self.request, router_id)
router.set_id_as_name_if_empty(length=0)
except Exception:
msg = _('Unable to retrieve details for router "%s".') \
% router_id
exceptions.handle(self.request, msg, redirect=self.failure_url)
if router.external_gateway_info:
ext_net_id = router.external_gateway_info['network_id']
router.external_gateway_info['network_url'] = reverse(
self.network_url, args=[ext_net_id])
try:
ext_net = api.neutron.network_get(self.request, ext_net_id,
expand_subnet=False)
ext_net.set_id_as_name_if_empty(length=0)
router.external_gateway_info['network'] = ext_net.name
except Exception:
msg = _('Unable to retrieve an external network "%s".') \
% ext_net_id
exceptions.handle(self.request, msg)
router.external_gateway_info['network'] = ext_net_id
return router
@memoized.memoized_method
def _get_ports(self):
try:
ports = api.neutron.port_list(self.request,
device_id=self.kwargs['router_id'])
except Exception:
ports = []
msg = _('Unable to retrieve port details.')
exceptions.handle(self.request, msg)
return ports
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
router = self._get_data()
table = rtables.RoutersTable(self.request)
context["router"] = router
context["url"] = self.failure_url
context["actions"] = table.render_row_actions(router)
context['dvr_supported'] = api.neutron.get_feature_permission(
self.request, "dvr", "get")
context['ha_supported'] = api.neutron.get_feature_permission(
self.request, "l3-ha", "get")
choices = rtables.STATUS_DISPLAY_CHOICES
router.status_label = filters.get_display_label(choices, router.status)
choices = rtables.ADMIN_STATE_DISPLAY_CHOICES
router.admin_state_label = (
filters.get_display_label(choices, router.admin_state))
return context
def get_tabs(self, request, *args, **kwargs):
router = self._get_data()
ports = self._get_ports()
return self.tab_group_class(request, router=router,
ports=ports, **kwargs)
class CreateView(forms.ModalFormView):
form_class = project_forms.CreateForm
form_id = "create_router_form"
template_name = 'project/routers/create.html'
success_url = reverse_lazy("horizon:project:routers:index")
page_title = _("Create Router")
submit_label = _("Create Router")
submit_url = reverse_lazy("horizon:project:routers:create")
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context['enable_snat_allowed'] = self.initial['enable_snat_allowed']
return context
def get_initial(self):
enable_snat_allowed = api.neutron.get_feature_permission(
self.request, 'ext-gw-mode', 'create_router_enable_snat')
self.initial['enable_snat_allowed'] = enable_snat_allowed
return super().get_initial()
class UpdateView(forms.ModalFormView):
form_class = project_forms.UpdateForm
form_id = "update_router_form"
template_name = 'project/routers/update.html'
success_url = reverse_lazy("horizon:project:routers:index")
page_title = _("Edit Router")
submit_label = _("Save Changes")
submit_url = "horizon:project:routers:update"
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
args = (self.kwargs['router_id'],)
context["router_id"] = self.kwargs['router_id']
context['submit_url'] = reverse(self.submit_url, args=args)
return context
def _get_object(self, *args, **kwargs):
router_id = self.kwargs['router_id']
try:
return api.neutron.router_get(self.request, router_id)
except Exception:
redirect = self.success_url
msg = _('Unable to retrieve router details.')
exceptions.handle(self.request, msg, redirect=redirect)
def get_initial(self):
router = self._get_object()
initial = {'router_id': router['id'],
'tenant_id': router['tenant_id'],
'name': router['name'],
'admin_state': router['admin_state_up']}
if hasattr(router, 'distributed'):
initial['mode'] = ('distributed' if router.distributed
else 'centralized')
if hasattr(router, 'ha'):
initial['ha'] = router.ha
return initial
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