|
1
|
|
|
# Licensed to the StackStorm, Inc ('StackStorm') under one or more |
|
2
|
|
|
# contributor license agreements. See the NOTICE file distributed with |
|
3
|
|
|
# this work for additional information regarding copyright ownership. |
|
4
|
|
|
# The ASF licenses this file to You under the Apache License, Version 2.0 |
|
5
|
|
|
# (the "License"); you may not use this file except in compliance with |
|
6
|
|
|
# the License. You may obtain a copy of the License at |
|
7
|
|
|
# |
|
8
|
|
|
# http://www.apache.org/licenses/LICENSE-2.0 |
|
9
|
|
|
# |
|
10
|
|
|
# Unless required by applicable law or agreed to in writing, software |
|
11
|
|
|
# distributed under the License is distributed on an "AS IS" BASIS, |
|
12
|
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
13
|
|
|
# See the License for the specific language governing permissions and |
|
14
|
|
|
# limitations under the License. |
|
15
|
|
|
|
|
16
|
|
|
import base64 |
|
17
|
|
|
|
|
18
|
|
|
import pecan |
|
19
|
|
|
from pecan import rest |
|
20
|
|
|
from six.moves import http_client |
|
21
|
|
|
from oslo_config import cfg |
|
22
|
|
|
|
|
23
|
|
|
from st2common.exceptions.auth import TTLTooLargeException |
|
24
|
|
|
from st2common.models.api.base import jsexpose |
|
25
|
|
|
from st2common.models.api.auth import TokenAPI |
|
26
|
|
|
from st2common.services.access import create_token |
|
27
|
|
|
from st2common import log as logging |
|
28
|
|
|
from st2auth.backends import get_backend_instance |
|
29
|
|
|
|
|
30
|
|
|
|
|
31
|
|
|
LOG = logging.getLogger(__name__) |
|
32
|
|
|
|
|
33
|
|
|
|
|
34
|
|
|
class TokenController(rest.RestController): |
|
35
|
|
|
def __init__(self, *args, **kwargs): |
|
36
|
|
|
super(TokenController, self).__init__(*args, **kwargs) |
|
37
|
|
|
|
|
38
|
|
|
if cfg.CONF.auth.mode == 'standalone': |
|
39
|
|
|
self._auth_backend = get_backend_instance(name=cfg.CONF.auth.backend) |
|
40
|
|
|
else: |
|
41
|
|
|
self._auth_backend = None |
|
42
|
|
|
|
|
43
|
|
|
@jsexpose(body_cls=TokenAPI, status_code=http_client.CREATED) |
|
44
|
|
|
def post(self, request, **kwargs): |
|
45
|
|
|
if cfg.CONF.auth.mode == 'proxy': |
|
46
|
|
|
return self._handle_proxy_auth(request=request, **kwargs) |
|
47
|
|
|
elif cfg.CONF.auth.mode == 'standalone': |
|
48
|
|
|
return self._handle_standalone_auth(request=request, **kwargs) |
|
49
|
|
|
|
|
50
|
|
|
def _handle_proxy_auth(self, request, **kwargs): |
|
51
|
|
|
remote_addr = pecan.request.headers.get('x-forwarded-for', pecan.request.remote_addr) |
|
52
|
|
|
extra = {'remote_addr': remote_addr} |
|
53
|
|
|
|
|
54
|
|
|
if pecan.request.remote_user: |
|
55
|
|
|
ttl = getattr(request, 'ttl', None) |
|
56
|
|
|
try: |
|
57
|
|
|
token = self._create_token_for_user(username=pecan.request.remote_user, ttl=ttl) |
|
58
|
|
|
except TTLTooLargeException as e: |
|
59
|
|
|
self._abort_request(status_code=http_client.BAD_REQUEST, |
|
60
|
|
|
message=e.message) |
|
61
|
|
|
return self._process_successful_response(token=token) |
|
62
|
|
|
|
|
63
|
|
|
LOG.audit('Access denied to anonymous user.', extra=extra) |
|
64
|
|
|
self._abort_request() |
|
65
|
|
|
|
|
66
|
|
|
def _handle_standalone_auth(self, request, **kwargs): |
|
67
|
|
|
authorization = pecan.request.authorization |
|
68
|
|
|
|
|
69
|
|
|
auth_backend = self._auth_backend.__class__.__name__ |
|
70
|
|
|
remote_addr = pecan.request.remote_addr |
|
71
|
|
|
extra = {'auth_backend': auth_backend, 'remote_addr': remote_addr} |
|
72
|
|
|
|
|
73
|
|
|
if not authorization: |
|
74
|
|
|
LOG.audit('Authorization header not provided', extra=extra) |
|
75
|
|
|
self._abort_request() |
|
76
|
|
|
return |
|
77
|
|
|
|
|
78
|
|
|
auth_type, auth_value = authorization |
|
79
|
|
|
if auth_type.lower() not in ['basic']: |
|
80
|
|
|
extra['auth_type'] = auth_type |
|
81
|
|
|
LOG.audit('Unsupported authorization type: %s' % (auth_type), extra=extra) |
|
82
|
|
|
self._abort_request() |
|
83
|
|
|
return |
|
84
|
|
|
|
|
85
|
|
|
try: |
|
86
|
|
|
auth_value = base64.b64decode(auth_value) |
|
87
|
|
|
except Exception: |
|
88
|
|
|
LOG.audit('Invalid authorization header', extra=extra) |
|
89
|
|
|
self._abort_request() |
|
90
|
|
|
return |
|
91
|
|
|
|
|
92
|
|
|
split = auth_value.split(':') |
|
93
|
|
|
if len(split) != 2: |
|
94
|
|
|
LOG.audit('Invalid authorization header', extra=extra) |
|
95
|
|
|
self._abort_request() |
|
96
|
|
|
return |
|
97
|
|
|
|
|
98
|
|
|
username, password = split |
|
99
|
|
|
result = self._auth_backend |
|
100
|
|
|
|
|
101
|
|
|
result = self._auth_backend.authenticate(username=username, password=password) |
|
102
|
|
|
if result is True: |
|
103
|
|
|
ttl = getattr(request, 'ttl', None) |
|
104
|
|
|
try: |
|
105
|
|
|
token = self._create_token_for_user(username=username, ttl=ttl) |
|
106
|
|
|
return self._process_successful_response(token=token) |
|
107
|
|
|
except TTLTooLargeException as e: |
|
108
|
|
|
self._abort_request(status_code=http_client.BAD_REQUEST, |
|
109
|
|
|
message=e.message) |
|
110
|
|
|
return |
|
111
|
|
|
|
|
112
|
|
|
LOG.audit('Invalid credentials provided', extra=extra) |
|
113
|
|
|
self._abort_request() |
|
114
|
|
|
|
|
115
|
|
|
def _abort_request(self, status_code=http_client.UNAUTHORIZED, |
|
116
|
|
|
message='Invalid or missing credentials'): |
|
117
|
|
|
pecan.abort(status_code, message) |
|
118
|
|
|
|
|
119
|
|
|
def _process_successful_response(self, token): |
|
120
|
|
|
api_url = cfg.CONF.auth.api_url |
|
121
|
|
|
pecan.response.headers['X-API-URL'] = api_url |
|
122
|
|
|
return token |
|
123
|
|
|
|
|
124
|
|
|
def _create_token_for_user(self, username, ttl=None): |
|
125
|
|
|
tokendb = create_token(username=username, ttl=ttl) |
|
126
|
|
|
return TokenAPI.from_model(tokendb) |
|
127
|
|
|
|
StackStorm /
st2
