1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
# Copyright 2012 OpenStack Foundation
#
# 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 oslo_log import log
from oslo_serialization import jsonutils
import webob
from keystone.common import extension
from keystone.common import json_home
from keystone.common import wsgi
from keystone import exception
LOG = log.getLogger(__name__)
MEDIA_TYPE_JSON = 'application/vnd.openstack.identity-%s+json'
_VERSIONS = []
# NOTE(blk-u): latest_app will be set by keystone.service.loadapp(). It gets
# set to the application that was just loaded. In the case of keystone-all,
# loadapp() gets called twice, once for the public app and once for the admin
# app. In the case of httpd/keystone, loadapp() gets called once for the public
# app if this is the public instance or loadapp() gets called for the admin app
# if it's the admin instance.
# This is used to fetch the /v3 JSON Home response. The /v3 JSON Home response
# is the same whether it's the admin or public service so either admin or
# public works.
latest_app = None
def request_v3_json_home(new_prefix):
if 'v3' not in _VERSIONS:
# No V3 support, so return an empty JSON Home document.
return {'resources': {}}
req = webob.Request.blank(
'/v3', headers={'Accept': 'application/json-home'})
v3_json_home_str = req.get_response(latest_app).body
v3_json_home = jsonutils.loads(v3_json_home_str)
json_home.translate_urls(v3_json_home, new_prefix)
return v3_json_home
class Extensions(wsgi.Application):
"""Base extensions controller to be extended by public and admin API's."""
# extend in subclass to specify the set of extensions
@property
def extensions(self):
return None
def get_extensions_info(self, context):
return {'extensions': {'values': self.extensions.values()}}
def get_extension_info(self, context, extension_alias):
try:
return {'extension': self.extensions[extension_alias]}
except KeyError:
raise exception.NotFound(target=extension_alias)
class AdminExtensions(Extensions):
@property
def extensions(self):
return extension.ADMIN_EXTENSIONS
class PublicExtensions(Extensions):
@property
def extensions(self):
return extension.PUBLIC_EXTENSIONS
def register_version(version):
_VERSIONS.append(version)
class MimeTypes(object):
JSON = 'application/json'
JSON_HOME = 'application/json-home'
def v3_mime_type_best_match(context):
# accept_header is a WebOb MIMEAccept object so supports best_match.
accept_header = context['accept_header']
if not accept_header:
return MimeTypes.JSON
SUPPORTED_TYPES = [MimeTypes.JSON, MimeTypes.JSON_HOME]
return accept_header.best_match(SUPPORTED_TYPES)
class Version(wsgi.Application):
def __init__(self, version_type, routers=None):
self.endpoint_url_type = version_type
self._routers = routers
super(Version, self).__init__()
def _get_identity_url(self, context, version):
"""Returns a URL to keystone's own endpoint."""
url = self.base_url(context, self.endpoint_url_type)
return '%s/%s/' % (url, version)
def _get_versions_list(self, context):
"""The list of versions is dependent on the context."""
versions = {}
if 'v2.0' in _VERSIONS:
versions['v2.0'] = {
'id': 'v2.0',
'status': 'stable',
'updated': '2014-04-17T00:00:00Z',
'links': [
{
'rel': 'self',
'href': self._get_identity_url(context, 'v2.0'),
}, {
'rel': 'describedby',
'type': 'text/html',
'href': 'http://docs.openstack.org/'
}
],
'media-types': [
{
'base': 'application/json',
'type': MEDIA_TYPE_JSON % 'v2.0'
}
]
}
if 'v3' in _VERSIONS:
versions['v3'] = {
'id': 'v3.0',
'status': 'stable',
'updated': '2013-03-06T00:00:00Z',
'links': [
{
'rel': 'self',
'href': self._get_identity_url(context, 'v3'),
}
],
'media-types': [
{
'base': 'application/json',
'type': MEDIA_TYPE_JSON % 'v3'
}
]
}
return versions
def get_versions(self, context):
req_mime_type = v3_mime_type_best_match(context)
if req_mime_type == MimeTypes.JSON_HOME:
v3_json_home = request_v3_json_home('/v3')
return wsgi.render_response(
body=v3_json_home,
headers=(('Content-Type', MimeTypes.JSON_HOME),))
versions = self._get_versions_list(context)
return wsgi.render_response(status=(300, 'Multiple Choices'), body={
'versions': {
'values': versions.values()
}
})
def get_version_v2(self, context):
versions = self._get_versions_list(context)
if 'v2.0' in _VERSIONS:
return wsgi.render_response(body={
'version': versions['v2.0']
})
else:
raise exception.VersionNotFound(version='v2.0')
def _get_json_home_v3(self):
def all_resources():
for router in self._routers:
for resource in router.v3_resources:
yield resource
return {
'resources': dict(all_resources())
}
def get_version_v3(self, context):
versions = self._get_versions_list(context)
if 'v3' in _VERSIONS:
req_mime_type = v3_mime_type_best_match(context)
if req_mime_type == MimeTypes.JSON_HOME:
return wsgi.render_response(
body=self._get_json_home_v3(),
headers=(('Content-Type', MimeTypes.JSON_HOME),))
return wsgi.render_response(body={
'version': versions['v3']
})
else:
raise exception.VersionNotFound(version='v3')
|
