# 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.
from django.utils.translation import ugettext_lazy as _
import netaddr
from horizon import exceptions
from horizon import forms
from horizon.utils import validators
from horizon import workflows
from openstack_dashboard import api
port_validator = validators.validate_port_or_colon_separated_port_range
[docs]class AddRuleAction(workflows.Action):
name = forms.CharField(
max_length=80,
label=_("Name"),
required=False)
description = forms.CharField(
max_length=80,
label=_("Description"),
required=False)
protocol = forms.ThemableChoiceField(
label=_("Protocol"),
choices=[('tcp', _('TCP')),
('udp', _('UDP')),
('icmp', _('ICMP')),
('any', _('ANY'))],)
action = forms.ThemableChoiceField(
label=_("Action"),
choices=[('allow', _('ALLOW')),
('deny', _('DENY')),
('reject', _('REJECT'))],)
source_ip_address = forms.IPField(
label=_("Source IP Address/Subnet"),
version=forms.IPv4 | forms.IPv6,
required=False, mask=True)
destination_ip_address = forms.IPField(
label=_("Destination IP Address/Subnet"),
version=forms.IPv4 | forms.IPv6,
required=False, mask=True)
source_port = forms.CharField(
max_length=80,
label=_("Source Port/Port Range"),
required=False,
validators=[port_validator])
destination_port = forms.CharField(
max_length=80,
label=_("Destination Port/Port Range"),
required=False,
validators=[port_validator])
ip_version = forms.ThemableChoiceField(
label=_("IP Version"), required=False,
choices=[('4', '4'), ('6', '6')])
shared = forms.BooleanField(
label=_("Shared"), initial=False, required=False)
enabled = forms.BooleanField(
label=_("Enabled"), initial=True, required=False)
def __init__(self, request, *args, **kwargs):
super(AddRuleAction, self).__init__(request, *args, **kwargs)
def _check_ip_addr_and_ip_version(self, cleaned_data):
ip_version = int(str(cleaned_data.get('ip_version')))
src_ip = cleaned_data.get('source_ip_address')
dst_ip = cleaned_data.get('destination_ip_address')
msg = _('Source/Destination Network Address and IP version '
'are inconsistent. Please make them consistent.')
if (src_ip and
netaddr.IPNetwork(src_ip).version != ip_version):
self._errors['ip_version'] = self.error_class([msg])
elif (dst_ip and
netaddr.IPNetwork(dst_ip).version != ip_version):
self._errors['ip_version'] = self.error_class([msg])
[docs] def clean(self):
cleaned_data = super(AddRuleAction, self).clean()
self._check_ip_addr_and_ip_version(cleaned_data)
class Meta(object):
name = _("Rule")
permissions = ('openstack.services.network',)
help_text = _("Create a firewall rule.\n\n"
"A Firewall rule is an association of the following "
"attributes:\n\n"
"<li>IP Addresses: The addresses from/to which the "
"traffic filtration needs to be applied.</li>"
"<li>IP Version: The type of IP packets (IP V4/V6) "
"that needs to be filtered.</li>"
"<li>Protocol: Type of packets (UDP, ICMP, TCP, Any) "
"that needs to be checked.</li>"
"<li>Action: Action is the type of filtration "
"required, it can be Reject/Deny/Allow data "
"packets.</li>\n"
"The protocol and action fields are required, all "
"others are optional.")
[docs]class AddRuleStep(workflows.Step):
action_class = AddRuleAction
contributes = ("name", "description", "protocol", "action",
"source_ip_address", "source_port",
"destination_ip_address", "destination_port",
"enabled", "shared", "ip_version")
[docs] def contribute(self, data, context):
context = super(AddRuleStep, self).contribute(data, context)
if data:
if context['protocol'] == 'any':
del context['protocol']
for field in ['source_port',
'destination_port',
'source_ip_address',
'destination_ip_address']:
if not context[field]:
del context[field]
return context
[docs]class AddRule(workflows.Workflow):
slug = "addrule"
name = _("Add Rule")
finalize_button_name = _("Add")
success_message = _('Added Rule "%s".')
failure_message = _('Unable to add Rule "%s".')
success_url = "horizon:project:firewalls:index"
# fwaas is designed to support a wide range of vendor
# firewalls. Considering the multitude of vendor firewall
# features in place today, firewall_rule definition can
# involve more complex configuration over time. Hence,
# a workflow instead of a single form is used for
# firewall_rule add to be ready for future extension.
default_steps = (AddRuleStep,)
[docs] def handle(self, request, context):
try:
api.fwaas.rule_create(request, **context)
return True
except Exception as e:
msg = self.format_status_message(self.failure_message) + str(e)
exceptions.handle(request, msg)
return False
[docs]class SelectRulesAction(workflows.Action):
rule = forms.MultipleChoiceField(
label=_("Rules"),
required=False,
widget=forms.ThemableCheckboxSelectMultiple(),
help_text=_("Create a policy with selected rules."))
class Meta(object):
name = _("Rules")
permissions = ('openstack.services.network',)
help_text = _("Select rules for your policy.")
[docs] def populate_rule_choices(self, request, context):
try:
tenant_id = self.request.user.tenant_id
rules = api.fwaas.rule_list_for_tenant(request, tenant_id)
rules = sorted(rules,
key=lambda rule: rule.name_or_id)
rule_list = [(rule.id, rule.name_or_id) for rule in rules
if not rule.firewall_policy_id]
except Exception as e:
rule_list = []
exceptions.handle(request,
_('Unable to retrieve rules (%(error)s).') % {
'error': str(e)})
return rule_list
[docs]class SelectRulesStep(workflows.Step):
action_class = SelectRulesAction
template_name = "project/firewalls/_update_rules.html"
contributes = ("firewall_rules",)
[docs] def contribute(self, data, context):
if data:
rules = self.workflow.request.POST.getlist("rule")
if rules:
rules = [r for r in rules if r != '']
context['firewall_rules'] = rules
return context
[docs]class SelectRoutersAction(workflows.Action):
router = forms.MultipleChoiceField(
label=_("Routers"),
required=False,
widget=forms.ThemableCheckboxSelectMultiple(),
help_text=_("Create a firewall with selected routers."))
class Meta(object):
name = _("Routers")
permissions = ('openstack.services.network',)
help_text = _("Select routers for your firewall.")
[docs] def populate_router_choices(self, request, context):
try:
tenant_id = self.request.user.tenant_id
routers_list = api.fwaas.firewall_unassociated_routers_list(
request, tenant_id)
except Exception as e:
routers_list = []
exceptions.handle(request,
_('Unable to retrieve routers (%(error)s).') % {
'error': str(e)})
routers_list = [(router.id, router.name_or_id)
for router in routers_list]
return routers_list
[docs]class AddPolicyAction(workflows.Action):
name = forms.CharField(max_length=80,
label=_("Name"))
description = forms.CharField(max_length=80,
label=_("Description"),
required=False)
shared = forms.BooleanField(label=_("Shared"),
initial=False,
required=False)
audited = forms.BooleanField(label=_("Audited"),
initial=False,
required=False)
def __init__(self, request, *args, **kwargs):
super(AddPolicyAction, self).__init__(request, *args, **kwargs)
class Meta(object):
name = _("Policy")
permissions = ('openstack.services.network',)
help_text = _("Create a firewall policy with an ordered list "
"of firewall rules.\n\n"
"A firewall policy is an ordered collection of firewall "
"rules. So if the traffic matches the first rule, the "
"other rules are not executed. If the traffic does not "
"match the current rule, then the next rule is "
"executed. A firewall policy has the following "
"attributes:\n\n"
"<li>Shared: A firewall policy can be shared across "
"tenants. Thus it can also be made part of an audit "
"workflow wherein the firewall policy can be audited "
"by the relevant entity that is authorized.</li>"
"<li>Audited: When audited is set to True, it indicates "
"that the firewall policy has been audited. "
"Each time the firewall policy or the associated "
"firewall rules are changed, this attribute will be "
"set to False and will have to be explicitly set to "
"True through an update operation.</li>\n"
"The name field is required, all others are optional.")
[docs]class AddPolicyStep(workflows.Step):
action_class = AddPolicyAction
contributes = ("name", "description", "shared", "audited")
[docs] def contribute(self, data, context):
context = super(AddPolicyStep, self).contribute(data, context)
if data:
return context
[docs]class AddPolicy(workflows.Workflow):
slug = "addpolicy"
name = _("Add Policy")
finalize_button_name = _("Add")
success_message = _('Added Policy "%s".')
failure_message = _('Unable to add Policy "%s".')
success_url = "horizon:project:firewalls:index"
default_steps = (AddPolicyStep, SelectRulesStep)
[docs] def handle(self, request, context):
try:
api.fwaas.policy_create(request, **context)
return True
except Exception as e:
msg = self.format_status_message(self.failure_message) + str(e)
exceptions.handle(request, msg)
return False
[docs]class AddFirewallAction(workflows.Action):
name = forms.CharField(max_length=80,
label=_("Name"),
required=False)
description = forms.CharField(max_length=80,
label=_("Description"),
required=False)
firewall_policy_id = forms.ThemableChoiceField(label=_("Policy"))
admin_state_up = forms.ThemableChoiceField(choices=[(True, _('UP')),
(False, _('DOWN'))],
label=_("Admin State"))
def __init__(self, request, *args, **kwargs):
super(AddFirewallAction, self).__init__(request, *args, **kwargs)
firewall_policy_id_choices = [('', _("Select a Policy"))]
try:
tenant_id = self.request.user.tenant_id
policies = api.fwaas.policy_list_for_tenant(request, tenant_id)
policies = sorted(policies, key=lambda policy: policy.name)
except Exception as e:
exceptions.handle(
request,
_('Unable to retrieve policy list (%(error)s).') % {
'error': str(e)})
policies = []
for p in policies:
firewall_policy_id_choices.append((p.id, p.name_or_id))
self.fields['firewall_policy_id'].choices = firewall_policy_id_choices
class Meta(object):
name = _("Firewall")
permissions = ('openstack.services.network',)
help_text = _("Create a firewall based on a policy.\n\n"
"A firewall represents a logical firewall resource that "
"a tenant can instantiate and manage. A firewall must "
"be associated with one policy, all other fields are "
"optional.")
[docs]class AddFirewallStep(workflows.Step):
action_class = AddFirewallAction
contributes = ("name", "firewall_policy_id", "description",
"admin_state_up")
[docs] def contribute(self, data, context):
context = super(AddFirewallStep, self).contribute(data, context)
context['admin_state_up'] = (context['admin_state_up'] == 'True')
return context
[docs]class AddFirewall(workflows.Workflow):
slug = "addfirewall"
name = _("Add Firewall")
finalize_button_name = _("Add")
success_message = _('Added Firewall "%s".')
failure_message = _('Unable to add Firewall "%s".')
success_url = "horizon:project:firewalls:index"
# fwaas is designed to support a wide range of vendor
# firewalls. Considering the multitude of vendor firewall
# features in place today, firewall definition can
# involve more complex configuration over time. Hence,
# a workflow instead of a single form is used for
# firewall_rule add to be ready for future extension.
default_steps = (AddFirewallStep, )
[docs] def handle(self, request, context):
try:
api.fwaas.firewall_create(request, **context)
return True
except Exception as e:
msg = self.format_status_message(self.failure_message) + str(e)
exceptions.handle(request, msg)
return False