root / snf-cyclades-app / synnefo / api / floating_ips.py @ 59183afc
History | View | Annotate | Download (6.4 kB)
1 |
# Copyright 2013 GRNET S.A. All rights reserved.
|
---|---|
2 |
#
|
3 |
# Redistribution and use in source and binary forms, with or
|
4 |
# without modification, are permitted provided that the following
|
5 |
# conditions are met:
|
6 |
#
|
7 |
# 1. Redistributions of source code must retain the above
|
8 |
# copyright notice, this list of conditions and the following
|
9 |
# disclaimer.
|
10 |
#
|
11 |
# 2. Redistributions in binary form must reproduce the above
|
12 |
# copyright notice, this list of conditions and the following
|
13 |
# disclaimer in the documentation and/or other materials
|
14 |
# provided with the distribution.
|
15 |
#
|
16 |
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
17 |
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
18 |
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
19 |
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
20 |
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
21 |
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
22 |
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
23 |
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
24 |
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
25 |
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
26 |
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
27 |
# POSSIBILITY OF SUCH DAMAGE.
|
28 |
#
|
29 |
# The views and conclusions contained in the software and
|
30 |
# documentation are those of the authors and should not be
|
31 |
# interpreted as representing official policies, either expressed
|
32 |
# or implied, of GRNET S.A.
|
33 |
|
34 |
from django.conf.urls.defaults import patterns |
35 |
from django.db import transaction |
36 |
from django.http import HttpResponse |
37 |
from django.utils import simplejson as json |
38 |
|
39 |
from snf_django.lib import api |
40 |
from snf_django.lib.api import faults, utils |
41 |
from synnefo.api import util |
42 |
from synnefo import quotas |
43 |
from synnefo.db.models import Network, FloatingIP |
44 |
|
45 |
|
46 |
from logging import getLogger |
47 |
log = getLogger(__name__) |
48 |
|
49 |
urlpatterns = patterns( |
50 |
'synnefo.api.floating_ips',
|
51 |
(r'^(?:/|.json|.xml)?$', 'demux'), |
52 |
(r'^/(\w+)(?:.json|.xml)?$', 'floating_ip_demux'), |
53 |
) |
54 |
|
55 |
|
56 |
def demux(request): |
57 |
if request.method == 'GET': |
58 |
return list_floating_ips(request)
|
59 |
elif request.method == 'POST': |
60 |
return allocate_floating_ip(request)
|
61 |
else:
|
62 |
return api.method_not_allowed(request)
|
63 |
|
64 |
|
65 |
def floating_ip_demux(request, floating_ip_id): |
66 |
if request.method == 'GET': |
67 |
return get_floating_ip(request, floating_ip_id)
|
68 |
elif request.method == 'DELETE': |
69 |
return release_floating_ip(request, floating_ip_id)
|
70 |
else:
|
71 |
return api.method_not_allowed(request)
|
72 |
|
73 |
|
74 |
def ip_to_dict(floating_ip): |
75 |
machine_id = floating_ip.machine_id |
76 |
return {"fixed_ip": None, |
77 |
"id": str(floating_ip.id), |
78 |
"instance_id": str(machine_id) if machine_id else None, |
79 |
"ip": floating_ip.ipv4,
|
80 |
"pool": str(floating_ip.network_id)} |
81 |
|
82 |
|
83 |
@api.api_method(http_method="GET", user_required=True, logger=log) |
84 |
def list_floating_ips(request): |
85 |
"""Return user reserved floating IPs"""
|
86 |
log.debug("list_floating_ips")
|
87 |
|
88 |
userid = request.user_uniq |
89 |
floating_ips = FloatingIP.objects.filter(userid=userid, deleted=False)\
|
90 |
.order_by("id")
|
91 |
|
92 |
floating_ips = map(ip_to_dict, floating_ips)
|
93 |
|
94 |
request.serialization = "json"
|
95 |
data = json.dumps({"floating_ips": floating_ips})
|
96 |
|
97 |
return HttpResponse(data, status=200) |
98 |
|
99 |
|
100 |
@api.api_method(http_method="GET", user_required=True, logger=log) |
101 |
def get_floating_ip(request, floating_ip_id): |
102 |
"""Return information for a floating IP."""
|
103 |
userid = request.user_uniq |
104 |
try:
|
105 |
floating_ip = FloatingIP.objects.get(id=floating_ip_id, |
106 |
deleted=False,
|
107 |
userid=userid) |
108 |
except FloatingIP.DoesNotExist:
|
109 |
raise faults.ItemNotFound("Floating IP '%s' does not exist" % |
110 |
floating_ip_id) |
111 |
request.serialization = "json"
|
112 |
data = json.dumps({"floating_ip": ip_to_dict(floating_ip)})
|
113 |
return HttpResponse(data, status=200) |
114 |
|
115 |
|
116 |
@api.api_method(http_method='POST', user_required=True, logger=log) |
117 |
@transaction.commit_manually
|
118 |
def allocate_floating_ip(request): |
119 |
"""Allocate a floating IP."""
|
120 |
req = utils.get_request_dict(request) |
121 |
log.info('allocate_floating_ip %s', req)
|
122 |
|
123 |
userid = request.user_uniq |
124 |
try:
|
125 |
pool = req['pool']
|
126 |
except KeyError: |
127 |
raise faults.BadRequest("Malformed request. Missing" |
128 |
" 'pool' attribute")
|
129 |
|
130 |
try:
|
131 |
network = Network.objects.get(public=True, deleted=False, id=pool) |
132 |
except Network.DoesNotExist:
|
133 |
raise faults.ItemNotFound("Pool '%s' does not exist." % pool) |
134 |
|
135 |
try:
|
136 |
address = util.get_network_free_address(network) |
137 |
floating_ip = FloatingIP.objects.create(ipv4=address, network=network, |
138 |
userid=userid) |
139 |
quotas.issue_and_accept_commission(floating_ip) |
140 |
except:
|
141 |
transaction.rollback() |
142 |
raise
|
143 |
else:
|
144 |
transaction.commit() |
145 |
|
146 |
log.info("User '%s' allocated floating IP '%s", userid, floating_ip)
|
147 |
|
148 |
request.serialization = "json"
|
149 |
data = json.dumps({"floating_ip": ip_to_dict(floating_ip)})
|
150 |
return HttpResponse(data, status=200) |
151 |
|
152 |
|
153 |
@api.api_method(http_method='DELETE', user_required=True, logger=log) |
154 |
@transaction.commit_on_success
|
155 |
def release_floating_ip(request, floating_ip_id): |
156 |
"""Release a floating IP."""
|
157 |
userid = request.user_uniq |
158 |
log.info("release_floating_ip '%s'. User '%s'.", floating_ip_id, userid)
|
159 |
try:
|
160 |
floating_ip = FloatingIP.objects.select_for_update()\ |
161 |
.get(id=floating_ip_id, |
162 |
deleted=False,
|
163 |
userid=userid) |
164 |
except FloatingIP.DoesNotExist:
|
165 |
raise faults.ItemNotFound("Floating IP '%s' does not exist" % |
166 |
floating_ip_id) |
167 |
|
168 |
if floating_ip.in_use():
|
169 |
msg = "Floating IP '%s' is used" % floating_ip.id
|
170 |
raise faults.Conflict(message=msg)
|
171 |
|
172 |
try:
|
173 |
floating_ip.network.release_address(floating_ip.ipv4) |
174 |
floating_ip.deleted = True
|
175 |
quotas.issue_and_accept_commission(floating_ip, delete=True)
|
176 |
except:
|
177 |
transaction.rollback() |
178 |
raise
|
179 |
else:
|
180 |
floating_ip.delete() |
181 |
transaction.commit() |
182 |
|
183 |
log.info("User '%s' released IP '%s", userid, floating_ip)
|
184 |
|
185 |
return HttpResponse(status=204) |