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
|
# friends-dispatcher -- send & receive messages from any social network
# Copyright (C) 2012 Canonical Ltd
#
# 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, version 3 of the License.
#
# 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/>.
"""Authentication through the single-sign-on service."""
__all__ = [
'Authentication',
]
import logging
import time
from gi.repository import Accounts, Signon
from friends.errors import AuthorizationError
log = logging.getLogger(__name__)
LOGIN_TIMEOUT = 30 # Currently this is measured in half-seconds.
# Yes, this is not the most logical place to instantiate this, but I
# couldn't do it in account.py due to cyclical import dependencies.
manager = Accounts.Manager.new_for_service_type('microblogging')
class Authentication:
def __init__(self, account_id):
self.account_id = account_id
account = manager.get_account(account_id)
for service in account.list_services():
self.auth = Accounts.AccountService.new(
account, service).get_auth_data()
break
else:
raise AuthorizationError(
account_id,
'No AgService found, is your UOA plugin written correctly?')
self._reply = None
self._error = None
def login(self):
auth = self.auth
self.auth_session = Signon.AuthSession.new(
auth.get_credentials_id(),
auth.get_method())
self.auth_session.process(
auth.get_parameters(),
auth.get_mechanism(),
self._login_cb,
None)
timeout = LOGIN_TIMEOUT
while self._reply is None and timeout > 0:
# We're building a synchronous API on top of an inherently
# async library, so we need to block this thread until the
# callback gets called to give us the response to return.
time.sleep(0.5)
timeout -= 1
if self._error is not None:
exception = AuthorizationError(self.account_id, self._error.message)
# Mardy says this error can happen during normal operation.
if exception.message.endswith('userActionFinished error: 10'):
log.error(str(exception))
else:
raise exception
if self._reply is None:
raise AuthorizationError(self.account_id, 'Login timed out.')
if 'AccessToken' not in self._reply:
raise AuthorizationError(
self.account_id,
'No AccessToken found: {!r}'.format(self._reply))
return self._reply
def _login_cb(self, session, reply, error, user_data):
# Don't raise Exceptions here because this callback runs in
# MainThread, not the thread you expect it to.
if error:
self._error = error
self._reply = reply
log.debug('_login_cb completed')
|