/
forms.py
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/
forms.py
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2012 Nebula, 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 import shortcuts
from django.contrib import messages
from django.core import validators
from django.forms import ValidationError
from django.utils.translation import ugettext_lazy as _
from novaclient import exceptions as novaclient_exceptions
from horizon import api
from horizon import exceptions
from horizon import forms
from horizon.utils.validators import validate_ipv4_cidr
from horizon.utils.validators import validate_port_range
LOG = logging.getLogger(__name__)
class CreateGroup(forms.SelfHandlingForm):
name = forms.CharField(label=_("Name"),
validators=[validators.validate_slug])
description = forms.CharField(label=_("Description"))
def handle(self, request, data):
try:
api.security_group_create(request,
data['name'],
data['description'])
messages.success(request,
_('Successfully created security_group: %s')
% data['name'])
except:
exceptions.handle(request, _('Unable to create security group.'))
return shortcuts.redirect('horizon:nova:access_and_security:index')
class AddRule(forms.SelfHandlingForm):
ip_protocol = forms.ChoiceField(label=_('IP Protocol'),
choices=[('tcp', 'TCP'),
('udp', 'UDP'),
('icmp', 'ICMP')],
widget=forms.Select(attrs={'class':
'switchable'}))
from_port = forms.IntegerField(label=_("From Port"),
help_text=_("TCP/UDP: Enter integer value "
"between 1 and 65535. ICMP: "
"enter a value for ICMP type "
"in the range (-1: 255)"),
widget=forms.TextInput(
attrs={'data': _('From Port'),
'data-icmp': _('Type')}),
validators=[validate_port_range])
to_port = forms.IntegerField(label=_("To Port"),
help_text=_("TCP/UDP: Enter integer value "
"between 1 and 65535. ICMP: "
"enter a value for ICMP code "
"in the range (-1: 255)"),
widget=forms.TextInput(
attrs={'data': _('To Port'),
'data-icmp': _('Code')}),
validators=[validate_port_range])
source_group = forms.ChoiceField(label=_('Source Group'), required=False)
cidr = forms.CharField(label=_("CIDR"),
required=False,
initial="0.0.0.0/0",
help_text=_("Classless Inter-Domain Routing "
"(e.g. 192.168.0.0/24)"),
validators=[validate_ipv4_cidr])
security_group_id = forms.IntegerField(widget=forms.HiddenInput())
def __init__(self, *args, **kwargs):
super(AddRule, self).__init__(*args, **kwargs)
initials = kwargs.get("initial", {})
current_group_id = initials.get('security_group_id', 0)
security_groups = initials.get('security_group_list', [])
security_groups_choices = [("", "CIDR")] # default choice is CIDR
group_choices = [s for s in security_groups
if str(s[0]) != current_group_id]
if len(group_choices): # add group choice if available
security_groups_choices.append(('Security Group', group_choices))
self.fields['source_group'].choices = security_groups_choices
def clean(self):
cleaned_data = super(AddRule, self).clean()
from_port = cleaned_data.get("from_port", None)
to_port = cleaned_data.get("to_port", None)
cidr = cleaned_data.get("cidr", None)
source_group = cleaned_data.get("source_group", None)
if from_port == None:
msg = _('The "from" port number is invalid.')
raise ValidationError(msg)
if to_port == None:
msg = _('The "to" port number is invalid.')
raise ValidationError(msg)
if to_port < from_port:
msg = _('The "to" port number must be greater than or equal to '
'the "from" port number.')
raise ValidationError(msg)
if source_group and cidr != self.fields['cidr'].initial:
# Specifying a source group *and* a custom CIDR is invalid.
msg = _('Either CIDR or Source Group may be specified, '
'but not both.')
raise ValidationError(msg)
elif source_group:
# If a source group is specified, clear the CIDR from its default
cleaned_data['cidr'] = None
else:
# If only cidr is specified, clear the source_group entirely
cleaned_data['source_group'] = None
return cleaned_data
def handle(self, request, data):
try:
rule = api.security_group_rule_create(request,
data['security_group_id'],
data['ip_protocol'],
data['from_port'],
data['to_port'],
data['cidr'],
data['source_group'])
messages.success(request, _('Successfully added rule: %s') \
% unicode(rule))
except novaclient_exceptions.ClientException, e:
LOG.exception("ClientException in AddRule")
messages.error(request, _('Error adding rule security group: %s')
% e.message)
return shortcuts.redirect("horizon:nova:access_and_security:index")