# 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.
import logging
from django.core.urlresolvers import reverse
from django import template
from django.template import defaultfilters as filters
from django.utils.translation import pgettext_lazy
from django.utils.translation import ugettext_lazy as _
from django.utils.translation import ungettext_lazy
from horizon import exceptions
from horizon import tables
from openstack_dashboard import api
from openstack_dashboard import policy
from openstack_dashboard.usage import quotas
LOG = logging.getLogger(__name__)
[docs]class CheckNetworkEditable(object):
"""Mixin class to determine the specified network is editable."""
[docs] def allowed(self, request, datum=None):
# Only administrator is allowed to create and manage shared networks.
if datum and datum.shared:
return False
return True
[docs]class DeleteNetwork(policy.PolicyTargetMixin, CheckNetworkEditable,
tables.DeleteAction):
@staticmethod
[docs] def action_present(count):
return ungettext_lazy(
u"Delete Network",
u"Delete Networks",
count
)
@staticmethod
[docs] def action_past(count):
return ungettext_lazy(
u"Deleted Network",
u"Deleted Networks",
count
)
policy_rules = (("network", "delete_network"),)
[docs] def delete(self, request, network_id):
network_name = network_id
try:
# Retrieve the network list.
network = api.neutron.network_get(request, network_id,
expand_subnet=False)
network_name = network.name
LOG.debug('Network %(network_id)s has subnets: %(subnets)s',
{'network_id': network_id, 'subnets': network.subnets})
for subnet_id in network.subnets:
api.neutron.subnet_delete(request, subnet_id)
LOG.debug('Deleted subnet %s', subnet_id)
api.neutron.network_delete(request, network_id)
LOG.debug('Deleted network %s successfully', network_id)
except Exception:
msg = _('Failed to delete network %s')
LOG.info(msg, network_id)
redirect = reverse("horizon:project:networks:index")
exceptions.handle(request, msg % network_name, redirect=redirect)
[docs]class CreateNetwork(tables.LinkAction):
name = "create"
verbose_name = _("Create Network")
url = "horizon:project:networks:create"
classes = ("ajax-modal",)
icon = "plus"
policy_rules = (("network", "create_network"),)
[docs] def allowed(self, request, datum=None):
usages = quotas.tenant_quota_usages(request)
# when Settings.OPENSTACK_NEUTRON_NETWORK['enable_quotas'] = False
# usages["networks"] is empty
if usages.get('networks', {}).get('available', 1) <= 0:
if "disabled" not in self.classes:
self.classes = [c for c in self.classes] + ["disabled"]
self.verbose_name = _("Create Network (Quota exceeded)")
else:
self.verbose_name = _("Create Network")
self.classes = [c for c in self.classes if c != "disabled"]
return True
[docs]class EditNetwork(policy.PolicyTargetMixin, CheckNetworkEditable,
tables.LinkAction):
name = "update"
verbose_name = _("Edit Network")
url = "horizon:project:networks:update"
classes = ("ajax-modal",)
icon = "pencil"
policy_rules = (("network", "update_network"),)
[docs]class CreateSubnet(policy.PolicyTargetMixin, CheckNetworkEditable,
tables.LinkAction):
name = "subnet"
verbose_name = _("Add Subnet")
url = "horizon:project:networks:addsubnet"
classes = ("ajax-modal",)
icon = "plus"
policy_rules = (("network", "create_subnet"),)
policy_target_attrs = (("network:project_id", "tenant_id"),)
[docs] def allowed(self, request, datum=None):
usages = quotas.tenant_quota_usages(request)
# when Settings.OPENSTACK_NEUTRON_NETWORK['enable_quotas'] = False
# usages["subnets'] is empty
if usages.get('subnets', {}).get('available', 1) <= 0:
if 'disabled' not in self.classes:
self.classes = [c for c in self.classes] + ['disabled']
self.verbose_name = _('Add Subnet (Quota exceeded)')
else:
self.verbose_name = _('Add Subnet')
self.classes = [c for c in self.classes if c != 'disabled']
return True
[docs]def get_subnets(network):
template_name = 'project/networks/_network_ips.html'
context = {"subnets": network.subnets}
return template.loader.render_to_string(template_name, context)
DISPLAY_CHOICES = (
("up", pgettext_lazy("Admin state of a Network", u"UP")),
("down", pgettext_lazy("Admin state of a Network", u"DOWN")),
)
STATUS_DISPLAY_CHOICES = (
("active", pgettext_lazy("Current status of a Network", u"Active")),
("build", pgettext_lazy("Current status of a Network", u"Build")),
("down", pgettext_lazy("Current status of a Network", u"Down")),
("error", pgettext_lazy("Current status of a Network", u"Error")),
)
[docs]class NetworksFilterAction(tables.FilterAction):
[docs] def filter(self, table, networks, filter_string):
"""Naive case-insensitive search."""
query = filter_string.lower()
return [network for network in networks
if query in network.name.lower()]
[docs]class NetworksTable(tables.DataTable):
name = tables.Column("name_or_id",
verbose_name=_("Name"),
link='horizon:project:networks:detail')
subnets = tables.Column(get_subnets,
verbose_name=_("Subnets Associated"),)
shared = tables.Column("shared", verbose_name=_("Shared"),
filters=(filters.yesno, filters.capfirst))
external = tables.Column("router:external", verbose_name=_("External"),
filters=(filters.yesno, filters.capfirst))
status = tables.Column("status", verbose_name=_("Status"),
display_choices=STATUS_DISPLAY_CHOICES)
admin_state = tables.Column("admin_state",
verbose_name=_("Admin State"),
display_choices=DISPLAY_CHOICES)