184 lines
7.1 KiB
Python
184 lines
7.1 KiB
Python
# Copyright 2012 Nebula, Inc.
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from django.urls import reverse
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from django.utils.translation import ugettext_lazy as _
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from neutronclient.common import exceptions as neutron_exc
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from horizon import exceptions
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from horizon import forms
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from horizon.utils import memoized
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from horizon import workflows
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from openstack_dashboard import api
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from openstack_dashboard import policy
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from openstack_dashboard.utils import filters
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ALLOCATE_URL = "horizon:project:floating_ips:allocate"
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class AssociateIPAction(workflows.Action):
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use_required_attribute = False
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ip_id = forms.ThemableDynamicTypedChoiceField(
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label=_("IP Address"),
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coerce=filters.get_int_or_uuid,
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empty_value=None
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)
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instance_id = forms.CharField(
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widget=forms.widgets.HiddenInput(),
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required=False,
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)
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port_id = forms.ThemableChoiceField(
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label=_("Port to be associated")
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)
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class Meta(object):
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name = _("IP Address")
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help_text = _("Select the IP address you wish to associate with "
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"the selected instance or port.")
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def __init__(self, *args, **kwargs):
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super(AssociateIPAction, self).__init__(*args, **kwargs)
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# If AssociateIP is invoked from instance menu, instance_id parameter
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# is passed in URL. In Neutron based Floating IP implementation
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# an association target is not an instance but a port, so we need
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# to get an association target based on a received instance_id
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# and set the initial value of instance_id ChoiceField.
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q_instance_id = self.data.get('instance_id',
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self.request.GET.get('instance_id'))
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q_port_id = self.request.GET.get('port_id')
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if policy.check((("network", "create_floatingip"),),
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request=self.request):
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self.fields['ip_id'].widget.add_item_link = ALLOCATE_URL
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if q_instance_id:
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self.initial['instance_id'] = q_instance_id
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targets = self._get_target_list(q_instance_id)
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# Setting the initial value here is required to avoid a situation
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# where instance_id passed in the URL is used as the initial value
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# unexpectedly. (This always happens if the form is invoked from
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# the instance table.)
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if targets:
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self.initial['port_id'] = targets[0].id
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else:
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self.initial['port_id'] = ''
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elif q_port_id:
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targets = self._get_target_list()
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for target in targets:
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if target.port_id == q_port_id:
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self.initial['port_id'] = target.id
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break
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def populate_ip_id_choices(self, request, context):
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ips = []
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redirect = reverse('horizon:project:floating_ips:index')
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try:
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ips = api.neutron.tenant_floating_ip_list(self.request)
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except neutron_exc.ConnectionFailed:
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exceptions.handle(self.request, redirect=redirect)
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except Exception:
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exceptions.handle(self.request,
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_('Unable to retrieve floating IP addresses.'),
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redirect=redirect)
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options = sorted([(ip.id, ip.ip) for ip in ips if not ip.port_id])
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if options:
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options.insert(0, ("", _("Select an IP address")))
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else:
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options = [("", _("No floating IP addresses allocated"))]
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return options
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@memoized.memoized_method
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def _get_target_list(self, instance_id=None):
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targets = []
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try:
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if instance_id:
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targets = api.neutron.floating_ip_target_list_by_instance(
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self.request, instance_id)
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else:
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targets = api.neutron.floating_ip_target_list(self.request)
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except Exception:
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redirect = reverse('horizon:project:floating_ips:index')
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exceptions.handle(self.request,
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_('Unable to retrieve instance list.'),
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redirect=redirect)
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return targets
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def populate_port_id_choices(self, request, context):
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q_instance_id = self.data.get('instance_id',
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self.initial.get('instance_id'))
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# The reason of specifying an empty tuple when q_instance_id is None
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# is to make memoized_method _get_target_list work. Two calls of
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# _get_target_list from here and __init__ must have a same arguments.
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params = (q_instance_id, ) if q_instance_id else ()
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targets = self._get_target_list(*params)
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instances = sorted([(target.id, target.name) for target in targets],
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# Sort FIP targets by server name for easy browsing
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key=lambda x: x[1])
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if instances:
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instances.insert(0, ("", _("Select a port")))
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else:
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instances = (("", _("No ports available")),)
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return instances
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class AssociateIP(workflows.Step):
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action_class = AssociateIPAction
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contributes = ("ip_id", "instance_id", "ip_address", "port_id")
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def contribute(self, data, context):
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context = super(AssociateIP, self).contribute(data, context)
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ip_id = data.get('ip_id', None)
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if ip_id:
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ip_choices = dict(self.action.fields['ip_id'].choices)
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context["ip_address"] = ip_choices.get(ip_id, None)
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return context
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class IPAssociationWorkflow(workflows.Workflow):
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slug = "ip_association"
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name = _("Manage Floating IP Associations")
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finalize_button_name = _("Associate")
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success_message = _('IP address %s associated.')
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failure_message = _('Unable to associate IP address %s.')
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success_url = "horizon:project:floating_ips:index"
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default_steps = (AssociateIP,)
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def format_status_message(self, message):
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if "%s" in message:
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return message % self.context.get('ip_address',
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_('unknown IP address'))
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else:
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return message
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def handle(self, request, data):
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try:
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api.neutron.floating_ip_associate(request,
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data['ip_id'],
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data['port_id'])
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except neutron_exc.Conflict:
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msg = _('The requested instance port is already'
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' associated with another floating IP.')
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exceptions.handle(request, msg)
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self.failure_message = msg
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return False
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except Exception:
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exceptions.handle(request)
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return False
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return True
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