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
|
# Copyright 2011 OpenStack Foundation
# All Rights Reserved.
#
# 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 re
import webob.exc
import wsgi
from trove.common import exception
from trove.openstack.common import log as logging
from trove.openstack.common.gettextutils import _
from trove.openstack.common import strutils
LOG = logging.getLogger(__name__)
class AuthorizationMiddleware(wsgi.Middleware):
def __init__(self, application, auth_providers, **local_config):
self.auth_providers = auth_providers
LOG.debug(_("Auth middleware providers: %s") % auth_providers)
super(AuthorizationMiddleware, self).__init__(application,
**local_config)
def process_request(self, request):
roles = request.headers.get('X_ROLE', '').split(',')
LOG.debug(_("Processing auth request with roles: %s") % roles)
tenant_id = request.headers.get('X-Tenant-Id', None)
LOG.debug(_("Processing auth request with tenant_id: %s") % tenant_id)
for provider in self.auth_providers:
provider.authorize(request, tenant_id, roles)
@classmethod
def factory(cls, global_config, **local_config):
def _factory(app):
LOG.debug(_("Created auth middleware with config: %s") %
local_config)
return cls(app, [TenantBasedAuth()], **local_config)
return _factory
class TenantBasedAuth(object):
# The paths differ from melange, so the regex must differ as well,
# trove starts with a tenant_id
tenant_scoped_url = re.compile("/(?P<tenant_id>.*?)/.*")
def authorize(self, request, tenant_id, roles):
match_for_tenant = self.tenant_scoped_url.match(request.path_info)
if (match_for_tenant and
tenant_id == match_for_tenant.group('tenant_id')):
LOG.debug(strutils.mask_password(
_("Authorized tenant '%(tenant_id)s' request: "
"%(request)s") %
{'tenant_id': tenant_id, 'request': request}))
return True
msg = _("User with tenant id %s cannot access this resource")
LOG.debug(msg % tenant_id)
raise webob.exc.HTTPForbidden(msg)
def admin_context(f):
"""
Verify that the current context has administrative access,
or throw an exception. Trove API functions typically take the form
function(self, req), or function(self, req, id).
"""
def wrapper(*args, **kwargs):
try:
req = args[1]
context = req.environ.get('trove.context')
except Exception:
raise exception.TroveError("Cannot load request context.")
if not context.is_admin:
raise exception.Forbidden("User does not have admin privileges.")
return f(*args, **kwargs)
return wrapper
|
