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
219
220
221
222
223
224
225
226
227
228
|
# -*- coding: utf-8 -*-
# srpregister.py
# Copyright (C) 2013 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import binascii
import json
import logging
import requests
import srp
from PySide import QtCore
from urlparse import urlparse
from leap.bitmask.config.providerconfig import ProviderConfig
from leap.bitmask.logs.utils import get_logger
from leap.bitmask.util.constants import SIGNUP_TIMEOUT
from leap.bitmask.util.request_helpers import get_content
from leap.common.check import leap_assert, leap_assert_type
logger = get_logger()
class SRPRegisterImpl:
USER_LOGIN_KEY = 'user[login]'
USER_VERIFIER_KEY = 'user[password_verifier]'
USER_SALT_KEY = 'user[password_salt]'
STATUS_ERROR = -999 # Custom error status
def __init__(self, provider_config, register_path):
leap_assert(provider_config, "Please provide a provider")
leap_assert_type(provider_config, ProviderConfig)
self._provider_config = provider_config
# **************************************************** #
# Dependency injection helpers, override this for more
# granular testing
self._fetcher = requests
self._srp = srp
self._hashfun = self._srp.SHA256
self._ng = self._srp.NG_1024
# **************************************************** #
parsed_url = urlparse(provider_config.get_api_uri())
self._provider = parsed_url.hostname
self._port = parsed_url.port
if self._port is None:
self._port = "443"
self._register_path = register_path
self._session = self._fetcher.session()
def register_user(self, username, password):
"""
Registers a user with the validator based on the password provider
:param username: username to register
:type username: str
:param password: password for this username
:type password: str
:returns: if the registration went ok or not, and the returned status
code of of the request
:rtype: (bool, int)
"""
username = username.lower().encode('utf-8')
password = password.encode('utf-8')
salt, verifier = self._srp.create_salted_verification_key(
username,
password,
self._hashfun,
self._ng)
user_data = {
self.USER_LOGIN_KEY: username,
self.USER_VERIFIER_KEY: binascii.hexlify(verifier),
self.USER_SALT_KEY: binascii.hexlify(salt)
}
uri = self._get_registration_uri()
logger.debug('Post to uri: %s' % uri)
logger.debug("Will try to register user = %s" % (username,))
ok = False
req = None
try:
req = self._session.post(uri,
data=user_data,
timeout=SIGNUP_TIMEOUT,
verify=self._provider_config.
get_ca_cert_path())
except requests.exceptions.RequestException as exc:
logger.error(exc.message)
else:
ok = req.ok
status_code = self.STATUS_ERROR
if req is not None:
status_code = req.status_code
if not ok:
try:
content, _ = get_content(req)
json_content = json.loads(content)
error_msg = json_content.get("errors").get("login")[0]
if not error_msg.istitle():
error_msg = "%s %s" % (username, error_msg)
logger.error(error_msg)
except Exception as e:
logger.error("Unknown error: %r" % (e, ))
return ok, status_code
def _get_registration_uri(self):
"""
Returns the URI where the register request should be made for
the provider
:rtype: str
"""
uri = "https://%s:%s/%s/%s" % (
self._provider,
self._port,
self._provider_config.get_api_version(),
self._register_path)
return uri
class SRPRegister(QtCore.QObject):
"""
Registers a user to a specific provider using SRP
"""
STATUS_OK = (200, 201)
STATUS_TAKEN = 422
def __init__(self, signaler=None,
provider_config=None, register_path="users"):
"""
Constructor
:param signaler: Signaler object used to receive notifications
from the backend
:type signaler: Signaler
:param provider_config: provider configuration instance,
properly loaded
:type privider_config: ProviderConfig
:param register_path: webapp path for registering users
:type register_path; str
"""
self._srp_register = SRPRegisterImpl(provider_config, register_path)
QtCore.QObject.__init__(self)
self._signaler = signaler
def register_user(self, username, password):
"""
Registers a user with the validator based on the password provider
:param username: username to register
:type username: str
:param password: password for this username
:type password: str
:returns: if the registration went ok or not.
:rtype: bool
"""
ok, status_code = self._srp_register.register_user(username, password)
self._emit_result(status_code)
return ok
def _emit_result(self, status_code):
"""
Emit the corresponding signal depending on the status code.
:param status_code: the status code received.
:type status_code: int or str
"""
logger.debug("Status code is: {0}".format(status_code))
if self._signaler is None:
return
if status_code in self.STATUS_OK:
self._signaler.signal(self._signaler.srp_registration_finished)
elif status_code == self.STATUS_TAKEN:
self._signaler.signal(self._signaler.srp_registration_taken)
else:
self._signaler.signal(self._signaler.srp_registration_failed)
if __name__ == "__main__":
logger = logging.getLogger(name='leap')
logger.setLevel(logging.DEBUG)
console = logging.StreamHandler()
console.setLevel(logging.DEBUG)
formatter = logging.Formatter(
'%(asctime)s '
'- %(name)s - %(levelname)s - %(message)s')
console.setFormatter(formatter)
logger.addHandler(console)
provider = ProviderConfig()
if provider.load("leap/providers/bitmask.net/provider.json"):
register = SRPRegister(provider_config=provider)
print "Registering user..."
print register.register_user("test1", "sarasaaaa")
print register.register_user("test2", "sarasaaaa")
|
