# Copyright 2012, Nachi Ueno, NTT MCL, 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.
import logging
from django.core.urlresolvers import reverse
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import forms
from horizon import messages
from openstack_dashboard import api
LOG = logging.getLogger(__name__)
[docs]class AddInterface(forms.SelfHandlingForm):
subnet_id = forms.ThemableChoiceField(label=_("Subnet"))
ip_address = forms.IPField(
label=_("IP Address (optional)"), required=False, initial="",
help_text=_("Specify an IP address for the interface "
"created (e.g. 192.168.0.254)."),
version=forms.IPv4 | forms.IPv6, mask=False)
router_name = forms.CharField(label=_("Router Name"),
widget=forms.TextInput(
attrs={'readonly': 'readonly'}))
router_id = forms.CharField(label=_("Router ID"),
widget=forms.TextInput(
attrs={'readonly': 'readonly'}))
failure_url = 'horizon:project:routers:detail'
def __init__(self, request, *args, **kwargs):
super(AddInterface, self).__init__(request, *args, **kwargs)
c = self.populate_subnet_id_choices(request)
self.fields['subnet_id'].choices = c
[docs] def populate_subnet_id_choices(self, request):
tenant_id = self.request.user.tenant_id
networks = []
router_subnet_ids = []
router_id = request.GET.get('router_id',
self.initial.get('router_id'))
try:
networks = api.neutron.network_list_for_tenant(request, tenant_id)
if router_id:
ports = api.neutron.port_list(request, device_id=router_id)
router_subnet_ids = [fixed_ip["subnet_id"] for port in ports
for fixed_ip in port.fixed_ips]
except Exception as e:
msg = _('Failed to get network list %s') % e
LOG.info(msg)
messages.error(request, msg)
if router_id:
redirect = reverse(self.failure_url, args=[router_id])
else:
redirect = reverse('horizon:project:routers:index')
exceptions.handle(request, msg, redirect=redirect)
return
choices = []
for n in networks:
net_name = n.name + ': ' if n.name else ''
choices += [(subnet.id,
'%s%s (%s)' % (net_name, subnet.cidr,
subnet.name or subnet.id))
for subnet in n['subnets']
if subnet.id not in router_subnet_ids
and subnet.gateway_ip]
if choices:
choices.insert(0, ("", _("Select Subnet")))
else:
choices.insert(0, ("", _("No subnets available")))
return choices
[docs] def handle(self, request, data):
if data['ip_address']:
port = self._add_interface_by_port(request, data)
else:
port = self._add_interface_by_subnet(request, data)
msg = _('Interface added')
if port:
msg += ' ' + port.fixed_ips[0]['ip_address']
LOG.debug(msg)
messages.success(request, msg)
return True
def _add_interface_by_subnet(self, request, data):
router_id = data['router_id']
try:
router_inf = api.neutron.router_add_interface(
request, router_id, subnet_id=data['subnet_id'])
except Exception as e:
self._handle_error(request, router_id, e)
try:
port = api.neutron.port_get(request, router_inf['port_id'])
except Exception:
# Ignore an error when port_get() since it is just
# to get an IP address for the interface.
port = None
return port
def _add_interface_by_port(self, request, data):
router_id = data['router_id']
subnet_id = data['subnet_id']
try:
subnet = api.neutron.subnet_get(request, subnet_id)
except Exception:
msg = _('Unable to get subnet "%s"') % subnet_id
self._handle_error(request, router_id, msg)
try:
ip_address = data['ip_address']
body = {'network_id': subnet.network_id,
'fixed_ips': [{'subnet_id': subnet.id,
'ip_address': ip_address}]}
port = api.neutron.port_create(request, **body)
except Exception as e:
self._handle_error(request, router_id, e)
try:
api.neutron.router_add_interface(request, router_id,
port_id=port.id)
except Exception as e:
self._delete_port(request, port)
self._handle_error(request, router_id, e)
return port
def _handle_error(self, request, router_id, reason):
msg = _('Failed to add_interface: %s') % reason
LOG.info(msg)
redirect = reverse(self.failure_url, args=[router_id])
exceptions.handle(request, msg, redirect=redirect)
def _delete_port(self, request, port):
try:
api.neutron.port_delete(request, port.id)
except Exception:
msg = _('Failed to delete port %s') % port.id
LOG.info(msg)
exceptions.handle(request, msg)