root / snf-cyclades-app / synnefo / api / subnets.py @ 406968dc
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1 | 16f7d0d9 | Dionysis Grigoropoulos | # Copyright 2013 GRNET S.A. All rights reserved.
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2 | 16f7d0d9 | Dionysis Grigoropoulos | #
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3 | 16f7d0d9 | Dionysis Grigoropoulos | # Redistribution and use in source and binary forms, with or
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4 | 16f7d0d9 | Dionysis Grigoropoulos | # without modification, are permitted provided that the following
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5 | 16f7d0d9 | Dionysis Grigoropoulos | # conditions are met:
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6 | 16f7d0d9 | Dionysis Grigoropoulos | #
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7 | 16f7d0d9 | Dionysis Grigoropoulos | # 1. Redistributions of source code must retain the above
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8 | 16f7d0d9 | Dionysis Grigoropoulos | # copyright notice, this list of conditions and the following
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9 | 16f7d0d9 | Dionysis Grigoropoulos | # disclaimer.
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10 | 16f7d0d9 | Dionysis Grigoropoulos | #
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11 | 16f7d0d9 | Dionysis Grigoropoulos | # 2. Redistributions in binary form must reproduce the above
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12 | 16f7d0d9 | Dionysis Grigoropoulos | # copyright notice, this list of conditions and the following
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13 | 16f7d0d9 | Dionysis Grigoropoulos | # disclaimer in the documentation and/or other materials
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14 | 16f7d0d9 | Dionysis Grigoropoulos | # provided with the distribution.
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15 | 16f7d0d9 | Dionysis Grigoropoulos | #
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16 | 16f7d0d9 | Dionysis Grigoropoulos | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 16f7d0d9 | Dionysis Grigoropoulos | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 16f7d0d9 | Dionysis Grigoropoulos | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 16f7d0d9 | Dionysis Grigoropoulos | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 16f7d0d9 | Dionysis Grigoropoulos | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 16f7d0d9 | Dionysis Grigoropoulos | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 16f7d0d9 | Dionysis Grigoropoulos | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 16f7d0d9 | Dionysis Grigoropoulos | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 16f7d0d9 | Dionysis Grigoropoulos | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 16f7d0d9 | Dionysis Grigoropoulos | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 16f7d0d9 | Dionysis Grigoropoulos | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 16f7d0d9 | Dionysis Grigoropoulos | # POSSIBILITY OF SUCH DAMAGE.
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28 | 16f7d0d9 | Dionysis Grigoropoulos | #
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29 | 16f7d0d9 | Dionysis Grigoropoulos | # The views and conclusions contained in the software and
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30 | 16f7d0d9 | Dionysis Grigoropoulos | # documentation are those of the authors and should not be
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31 | 16f7d0d9 | Dionysis Grigoropoulos | # interpreted as representing official policies, either expressed
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32 | 16f7d0d9 | Dionysis Grigoropoulos | # or implied, of GRNET S.A.
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33 | 16f7d0d9 | Dionysis Grigoropoulos | |
34 | 16f7d0d9 | Dionysis Grigoropoulos | from logging import getLogger |
35 | 16f7d0d9 | Dionysis Grigoropoulos | from snf_django.lib import api |
36 | 16f7d0d9 | Dionysis Grigoropoulos | |
37 | 6a959c73 | Dionysis Grigoropoulos | from django.conf.urls import patterns |
38 | 16f7d0d9 | Dionysis Grigoropoulos | from django.http import HttpResponse |
39 | 16f7d0d9 | Dionysis Grigoropoulos | from django.utils import simplejson as json |
40 | 16f7d0d9 | Dionysis Grigoropoulos | |
41 | 16f7d0d9 | Dionysis Grigoropoulos | from snf_django.lib.api import utils |
42 | 210e5933 | Christos Stavrakakis | #from synnefo.db.models import Subnet
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43 | b7311f3d | Dionysis Grigoropoulos | from synnefo.logic import subnets |
44 | 24ea227b | Dionysis Grigoropoulos | from synnefo.api import util |
45 | 16f7d0d9 | Dionysis Grigoropoulos | |
46 | b7311f3d | Dionysis Grigoropoulos | import ipaddr |
47 | 16f7d0d9 | Dionysis Grigoropoulos | |
48 | 16f7d0d9 | Dionysis Grigoropoulos | log = getLogger(__name__) |
49 | 16f7d0d9 | Dionysis Grigoropoulos | |
50 | 16f7d0d9 | Dionysis Grigoropoulos | |
51 | 6a959c73 | Dionysis Grigoropoulos | urlpatterns = patterns( |
52 | 6a959c73 | Dionysis Grigoropoulos | 'synnefo.api.subnets',
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53 | 6a959c73 | Dionysis Grigoropoulos | (r'^(?:/|.json|.xml)?$', 'demux'), |
54 | 6a959c73 | Dionysis Grigoropoulos | (r'^/([-\w]+)(?:/|.json|.xml)?$', 'subnet_demux')) |
55 | 6a959c73 | Dionysis Grigoropoulos | |
56 | 6a959c73 | Dionysis Grigoropoulos | |
57 | 16f7d0d9 | Dionysis Grigoropoulos | def demux(request): |
58 | 16f7d0d9 | Dionysis Grigoropoulos | if request.method == 'GET': |
59 | 16f7d0d9 | Dionysis Grigoropoulos | return list_subnets(request)
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60 | 16f7d0d9 | Dionysis Grigoropoulos | elif request.method == 'POST': |
61 | 16f7d0d9 | Dionysis Grigoropoulos | return create_subnet(request)
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62 | 16f7d0d9 | Dionysis Grigoropoulos | else:
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63 | 16f7d0d9 | Dionysis Grigoropoulos | return api.api_method_not_allowed(request)
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64 | 16f7d0d9 | Dionysis Grigoropoulos | |
65 | 16f7d0d9 | Dionysis Grigoropoulos | |
66 | 16f7d0d9 | Dionysis Grigoropoulos | def subnet_demux(request, sub_id): |
67 | 16f7d0d9 | Dionysis Grigoropoulos | if request.method == 'GET': |
68 | 16f7d0d9 | Dionysis Grigoropoulos | return get_subnet(request, sub_id)
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69 | 16f7d0d9 | Dionysis Grigoropoulos | elif request.method == 'DELETE': |
70 | 16f7d0d9 | Dionysis Grigoropoulos | return delete_subnet(request, sub_id)
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71 | 16f7d0d9 | Dionysis Grigoropoulos | elif request.method == 'PUT': |
72 | 16f7d0d9 | Dionysis Grigoropoulos | return update_subnet(request, sub_id)
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73 | 16f7d0d9 | Dionysis Grigoropoulos | else:
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74 | 16f7d0d9 | Dionysis Grigoropoulos | return api.api_method_not_allowed(request)
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75 | 16f7d0d9 | Dionysis Grigoropoulos | |
76 | 16f7d0d9 | Dionysis Grigoropoulos | |
77 | 16f7d0d9 | Dionysis Grigoropoulos | @api.api_method(http_method='GET', user_required=True, logger=log) |
78 | 16f7d0d9 | Dionysis Grigoropoulos | def list_subnets(request): |
79 | 16f7d0d9 | Dionysis Grigoropoulos | """List all subnets of a user"""
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80 | 5d83d2ff | Dionysis Grigoropoulos | subnet_list = subnets.list_subnets(request.user_uniq) |
81 | 5d83d2ff | Dionysis Grigoropoulos | subnets_dict = [subnet_to_dict(sub) |
82 | 5d83d2ff | Dionysis Grigoropoulos | for sub in subnet_list.order_by('id')] |
83 | 5d83d2ff | Dionysis Grigoropoulos | |
84 | 16f7d0d9 | Dionysis Grigoropoulos | data = json.dumps({'subnets': subnets_dict})
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85 | 16f7d0d9 | Dionysis Grigoropoulos | |
86 | 16f7d0d9 | Dionysis Grigoropoulos | return HttpResponse(data, status=200) |
87 | 16f7d0d9 | Dionysis Grigoropoulos | |
88 | 16f7d0d9 | Dionysis Grigoropoulos | |
89 | 16f7d0d9 | Dionysis Grigoropoulos | @api.api_method(http_method='POST', user_required=True, logger=log) |
90 | 16f7d0d9 | Dionysis Grigoropoulos | def create_subnet(request): |
91 | 316787ab | Dionysis Grigoropoulos | """Create a subnet
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92 | a996065e | Dionysis Grigoropoulos | network_id and the desired cidr are mandatory, everything else is optional
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93 | 316787ab | Dionysis Grigoropoulos |
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94 | a996065e | Dionysis Grigoropoulos | """
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95 | 16f7d0d9 | Dionysis Grigoropoulos | dictionary = utils.get_request_dict(request) |
96 | 16f7d0d9 | Dionysis Grigoropoulos | log.info('create subnet %s', dictionary)
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97 | 16f7d0d9 | Dionysis Grigoropoulos | |
98 | 16f7d0d9 | Dionysis Grigoropoulos | try:
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99 | 16f7d0d9 | Dionysis Grigoropoulos | subnet = dictionary['subnet']
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100 | 16f7d0d9 | Dionysis Grigoropoulos | network_id = subnet['network_id']
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101 | 16f7d0d9 | Dionysis Grigoropoulos | cidr = subnet['cidr']
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102 | 16f7d0d9 | Dionysis Grigoropoulos | except KeyError: |
103 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Malformed request") |
104 | 16f7d0d9 | Dionysis Grigoropoulos | |
105 | 5d83d2ff | Dionysis Grigoropoulos | name = subnet.get('name', None) |
106 | 5d83d2ff | Dionysis Grigoropoulos | ipversion = subnet.get('ip_version', 4) |
107 | b7311f3d | Dionysis Grigoropoulos | |
108 | 210e5933 | Christos Stavrakakis | allocation_pools = subnet.get('allocation_pools', None) |
109 | 210e5933 | Christos Stavrakakis | if allocation_pools is not None: |
110 | 210e5933 | Christos Stavrakakis | allocation_pools = parse_ip_pools(allocation_pools) |
111 | 210e5933 | Christos Stavrakakis | |
112 | b7311f3d | Dionysis Grigoropoulos | try:
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113 | b7311f3d | Dionysis Grigoropoulos | cidr_ip = ipaddr.IPNetwork(cidr) |
114 | b7311f3d | Dionysis Grigoropoulos | except ValueError: |
115 | 210e5933 | Christos Stavrakakis | raise api.faults.BadRequest("Malformed CIDR '%s'" % cidr) |
116 | b7311f3d | Dionysis Grigoropoulos | |
117 | 210e5933 | Christos Stavrakakis | # If no gateway is specified, send an empty string, because None is used
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118 | 210e5933 | Christos Stavrakakis | # if the user wants no gateway at all
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119 | 210e5933 | Christos Stavrakakis | gateway = subnet.get('gateway_ip', "") |
120 | b7311f3d | Dionysis Grigoropoulos | if gateway is "": |
121 | 210e5933 | Christos Stavrakakis | gateway = str(cidr_ip.network + 1) |
122 | b7311f3d | Dionysis Grigoropoulos | |
123 | 5d83d2ff | Dionysis Grigoropoulos | dhcp = subnet.get('enable_dhcp', True) |
124 | b7311f3d | Dionysis Grigoropoulos | slaac = subnet.get('enable_slaac', None) |
125 | b7311f3d | Dionysis Grigoropoulos | |
126 | b7311f3d | Dionysis Grigoropoulos | if ipversion == 6: |
127 | b7311f3d | Dionysis Grigoropoulos | if slaac is not None: |
128 | b7311f3d | Dionysis Grigoropoulos | dhcp = check_boolean_value(slaac, "enable_slaac")
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129 | b7311f3d | Dionysis Grigoropoulos | else:
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130 | b7311f3d | Dionysis Grigoropoulos | dhcp = check_boolean_value(dhcp, "dhcp")
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131 | b7311f3d | Dionysis Grigoropoulos | else:
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132 | b7311f3d | Dionysis Grigoropoulos | dhcp = check_boolean_value(dhcp, "dhcp")
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133 | b7311f3d | Dionysis Grigoropoulos | |
134 | 5d83d2ff | Dionysis Grigoropoulos | dns = subnet.get('dns_nameservers', None) |
135 | 5d83d2ff | Dionysis Grigoropoulos | hosts = subnet.get('host_routes', None) |
136 | 5d83d2ff | Dionysis Grigoropoulos | |
137 | 9cd6d7e9 | Dionysis Grigoropoulos | sub = subnets.create_subnet(network_id=network_id, |
138 | 9cd6d7e9 | Dionysis Grigoropoulos | cidr=cidr, |
139 | 9cd6d7e9 | Dionysis Grigoropoulos | name=name, |
140 | 9cd6d7e9 | Dionysis Grigoropoulos | ipversion=ipversion, |
141 | 9cd6d7e9 | Dionysis Grigoropoulos | gateway=gateway, |
142 | 9cd6d7e9 | Dionysis Grigoropoulos | dhcp=dhcp, |
143 | b7311f3d | Dionysis Grigoropoulos | slaac=slaac, |
144 | 9cd6d7e9 | Dionysis Grigoropoulos | dns_nameservers=dns, |
145 | 9cd6d7e9 | Dionysis Grigoropoulos | allocation_pools=allocation_pools, |
146 | 9cd6d7e9 | Dionysis Grigoropoulos | host_routes=hosts, |
147 | 9cd6d7e9 | Dionysis Grigoropoulos | user_id=request.user_uniq) |
148 | 16f7d0d9 | Dionysis Grigoropoulos | |
149 | 16f7d0d9 | Dionysis Grigoropoulos | subnet_dict = subnet_to_dict(sub) |
150 | 16f7d0d9 | Dionysis Grigoropoulos | data = json.dumps({'subnet': subnet_dict})
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151 | ef761fe4 | Dionysis Grigoropoulos | return HttpResponse(data, status=201) |
152 | 16f7d0d9 | Dionysis Grigoropoulos | |
153 | 16f7d0d9 | Dionysis Grigoropoulos | |
154 | 16f7d0d9 | Dionysis Grigoropoulos | @api.api_method(http_method='GET', user_required=True, logger=log) |
155 | 16f7d0d9 | Dionysis Grigoropoulos | def get_subnet(request, sub_id): |
156 | 16f7d0d9 | Dionysis Grigoropoulos | """Show info of a specific subnet"""
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157 | 16f7d0d9 | Dionysis Grigoropoulos | user_id = request.user_uniq |
158 | 9cd6d7e9 | Dionysis Grigoropoulos | subnet = subnets.get_subnet(sub_id) |
159 | 16f7d0d9 | Dionysis Grigoropoulos | |
160 | 5b9f9c52 | Dionysis Grigoropoulos | if (subnet.network.userid != user_id) and (subnet.network.public is False): |
161 | cad4793e | Dionysis Grigoropoulos | raise api.faults.Unauthorized("You're not allowed to view this subnet") |
162 | 16f7d0d9 | Dionysis Grigoropoulos | |
163 | 5d83d2ff | Dionysis Grigoropoulos | subnet_dict = subnet_to_dict(subnet) |
164 | 16f7d0d9 | Dionysis Grigoropoulos | data = json.dumps({'subnet': subnet_dict})
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165 | 16f7d0d9 | Dionysis Grigoropoulos | return HttpResponse(data, status=200) |
166 | 16f7d0d9 | Dionysis Grigoropoulos | |
167 | 16f7d0d9 | Dionysis Grigoropoulos | |
168 | 16f7d0d9 | Dionysis Grigoropoulos | @api.api_method(http_method='DELETE', user_required=True, logger=log) |
169 | 16f7d0d9 | Dionysis Grigoropoulos | def delete_subnet(request, sub_id): |
170 | 316787ab | Dionysis Grigoropoulos | """Delete a subnet, raises BadRequest
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171 | 16f7d0d9 | Dionysis Grigoropoulos | A subnet is deleted ONLY when the network that it belongs to is deleted
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172 | 316787ab | Dionysis Grigoropoulos |
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173 | 16f7d0d9 | Dionysis Grigoropoulos | """
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174 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Deletion of a subnet is not supported") |
175 | 16f7d0d9 | Dionysis Grigoropoulos | |
176 | 16f7d0d9 | Dionysis Grigoropoulos | |
177 | 16f7d0d9 | Dionysis Grigoropoulos | @api.api_method(http_method='PUT', user_required=True, logger=log) |
178 | 16f7d0d9 | Dionysis Grigoropoulos | def update_subnet(request, sub_id): |
179 | 316787ab | Dionysis Grigoropoulos | """Update the fields of a subnet
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180 | 16f7d0d9 | Dionysis Grigoropoulos | Only the name can be updated, everything else returns BadRequest
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181 | 316787ab | Dionysis Grigoropoulos |
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182 | 16f7d0d9 | Dionysis Grigoropoulos | """
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183 | 16f7d0d9 | Dionysis Grigoropoulos | |
184 | 16f7d0d9 | Dionysis Grigoropoulos | dictionary = utils.get_request_dict(request) |
185 | 16f7d0d9 | Dionysis Grigoropoulos | user_id = request.user_uniq |
186 | 16f7d0d9 | Dionysis Grigoropoulos | |
187 | 16f7d0d9 | Dionysis Grigoropoulos | try:
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188 | 16f7d0d9 | Dionysis Grigoropoulos | subnet = dictionary['subnet']
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189 | 16f7d0d9 | Dionysis Grigoropoulos | except KeyError: |
190 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Malformed request") |
191 | 16f7d0d9 | Dionysis Grigoropoulos | |
192 | 5d83d2ff | Dionysis Grigoropoulos | if len(subnet) != 1 or "name" not in subnet: |
193 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Only the name of subnet can be updated") |
194 | 16f7d0d9 | Dionysis Grigoropoulos | |
195 | 16f7d0d9 | Dionysis Grigoropoulos | name = subnet.get("name", None) |
196 | 16f7d0d9 | Dionysis Grigoropoulos | |
197 | 8646e606 | Dionysis Grigoropoulos | subnet_dict = subnet_to_dict(subnets.update_subnet(sub_id, name, user_id)) |
198 | 16f7d0d9 | Dionysis Grigoropoulos | data = json.dumps({'subnet': subnet_dict})
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199 | 16f7d0d9 | Dionysis Grigoropoulos | return HttpResponse(data, status=200) |
200 | 16f7d0d9 | Dionysis Grigoropoulos | |
201 | 16f7d0d9 | Dionysis Grigoropoulos | |
202 | 16f7d0d9 | Dionysis Grigoropoulos | #Utility functions
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203 | 16f7d0d9 | Dionysis Grigoropoulos | def subnet_to_dict(subnet): |
204 | 16f7d0d9 | Dionysis Grigoropoulos | """Returns a dictionary containing the info of a subnet"""
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205 | 911a1bc1 | Dionysis Grigoropoulos | dns = check_empty_lists(subnet.dns_nameservers) |
206 | 911a1bc1 | Dionysis Grigoropoulos | hosts = check_empty_lists(subnet.host_routes) |
207 | 210e5933 | Christos Stavrakakis | |
208 | 210e5933 | Christos Stavrakakis | allocation_pools = [render_ip_pool(pool) |
209 | 210e5933 | Christos Stavrakakis | for pool in subnet.ip_pools.all()] |
210 | 210e5933 | Christos Stavrakakis | |
211 | 210e5933 | Christos Stavrakakis | network = subnet.network |
212 | 210e5933 | Christos Stavrakakis | d = {'id': str(subnet.id), |
213 | 210e5933 | Christos Stavrakakis | 'network_id': str(network.id), |
214 | 210e5933 | Christos Stavrakakis | 'name': subnet.name if subnet.name is not None else "", |
215 | 210e5933 | Christos Stavrakakis | 'tenant_id': network.userid,
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216 | 210e5933 | Christos Stavrakakis | 'user_id': network.userid,
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217 | 210e5933 | Christos Stavrakakis | 'gateway_ip': subnet.gateway,
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218 | 210e5933 | Christos Stavrakakis | 'ip_version': subnet.ipversion,
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219 | 210e5933 | Christos Stavrakakis | 'cidr': subnet.cidr,
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220 | 210e5933 | Christos Stavrakakis | 'enable_dhcp': subnet.dhcp,
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221 | 210e5933 | Christos Stavrakakis | 'dns_nameservers': dns,
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222 | 210e5933 | Christos Stavrakakis | 'host_routes': hosts,
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223 | 210e5933 | Christos Stavrakakis | 'allocation_pools': allocation_pools}
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224 | 97ca522f | Dionysis Grigoropoulos | |
225 | 97ca522f | Dionysis Grigoropoulos | if subnet.ipversion == 6: |
226 | 210e5933 | Christos Stavrakakis | d['enable_slaac'] = subnet.dhcp
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227 | 210e5933 | Christos Stavrakakis | |
228 | 210e5933 | Christos Stavrakakis | d['links'] = util.subnet_to_links(subnet.id)
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229 | 97ca522f | Dionysis Grigoropoulos | |
230 | 210e5933 | Christos Stavrakakis | return d
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231 | 16f7d0d9 | Dionysis Grigoropoulos | |
232 | 16f7d0d9 | Dionysis Grigoropoulos | |
233 | 210e5933 | Christos Stavrakakis | def render_ip_pool(pool): |
234 | 210e5933 | Christos Stavrakakis | network = ipaddr.IPNetwork(pool.base).network |
235 | 210e5933 | Christos Stavrakakis | start = str(network + pool.offset)
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236 | 210e5933 | Christos Stavrakakis | end = str(network + pool.offset + pool.size - 1) |
237 | 210e5933 | Christos Stavrakakis | return {"start": start, "end": end} |
238 | 210e5933 | Christos Stavrakakis | |
239 | 210e5933 | Christos Stavrakakis | |
240 | 210e5933 | Christos Stavrakakis | def parse_ip_pools(pools): |
241 | 210e5933 | Christos Stavrakakis | """Convert [{'start': '192.168.42.1', 'end': '192.168.42.15'},
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242 | 210e5933 | Christos Stavrakakis | {'start': '192.168.42.30', 'end': '192.168.42.60'}]
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243 | 4445f97a | Dionysis Grigoropoulos | to
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244 | 210e5933 | Christos Stavrakakis | [(IPv4Address("192.168.42.1"), IPv4Address("192.168.42.15")),
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245 | 210e5933 | Christos Stavrakakis | (IPv4Address("192.168.42.30"), IPv4Address("192.168.42.60"))]
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246 | 316787ab | Dionysis Grigoropoulos |
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247 | 4445f97a | Dionysis Grigoropoulos | """
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248 | 210e5933 | Christos Stavrakakis | try:
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249 | 210e5933 | Christos Stavrakakis | return sorted([(ipaddr.IPv4Address(p["start"]), |
250 | 210e5933 | Christos Stavrakakis | ipaddr.IPv4Address(p["end"])) for p in pools]) |
251 | 210e5933 | Christos Stavrakakis | except KeyError: |
252 | 210e5933 | Christos Stavrakakis | raise api.faults.BadRequest("Malformed allocation pool.") |
253 | 210e5933 | Christos Stavrakakis | except ipaddr.AddressValueError:
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254 | 210e5933 | Christos Stavrakakis | raise api.faults.BadRequest("Allocation pools contain invalid IPv4" |
255 | 210e5933 | Christos Stavrakakis | " address")
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256 | 4445f97a | Dionysis Grigoropoulos | |
257 | 4445f97a | Dionysis Grigoropoulos | |
258 | 911a1bc1 | Dionysis Grigoropoulos | def check_empty_lists(value): |
259 | 911a1bc1 | Dionysis Grigoropoulos | """Check if value is Null/None, in which case we return an empty list"""
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260 | 911a1bc1 | Dionysis Grigoropoulos | if value is None: |
261 | 911a1bc1 | Dionysis Grigoropoulos | return []
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262 | 911a1bc1 | Dionysis Grigoropoulos | return value
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263 | 911a1bc1 | Dionysis Grigoropoulos | |
264 | 911a1bc1 | Dionysis Grigoropoulos | |
265 | b7311f3d | Dionysis Grigoropoulos | def check_boolean_value(value, key): |
266 | b7311f3d | Dionysis Grigoropoulos | """Check if dhcp value is in acceptable values"""
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267 | b7311f3d | Dionysis Grigoropoulos | if value not in [True, False]: |
268 | b7311f3d | Dionysis Grigoropoulos | raise api.faults.BadRequest("Malformed request, %s must " |
269 | b7311f3d | Dionysis Grigoropoulos | "be True or False" % key)
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270 | b7311f3d | Dionysis Grigoropoulos | return value |