root / astakos / middleware / auth.py @ 64cd4730
History | View | Annotate | Download (3.5 kB)
1 |
# Copyright 2011 GRNET S.A. All rights reserved.
|
---|---|
2 |
#
|
3 |
# Redistribution and use in source and binary forms, with or
|
4 |
# without modification, are permitted provided that the following
|
5 |
# conditions are met:
|
6 |
#
|
7 |
# 1. Redistributions of source code must retain the above
|
8 |
# copyright notice, this list of conditions and the following
|
9 |
# disclaimer.
|
10 |
#
|
11 |
# 2. Redistributions in binary form must reproduce the above
|
12 |
# copyright notice, this list of conditions and the following
|
13 |
# disclaimer in the documentation and/or other materials
|
14 |
# provided with the distribution.
|
15 |
#
|
16 |
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
17 |
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
18 |
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
19 |
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
20 |
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
21 |
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
22 |
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
23 |
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
24 |
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
25 |
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
26 |
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
27 |
# POSSIBILITY OF SUCH DAMAGE.
|
28 |
#
|
29 |
# The views and conclusions contained in the software and
|
30 |
# documentation are those of the authors and should not be
|
31 |
# interpreted as representing official policies, either expressed
|
32 |
# or implied, of GRNET S.A.
|
33 |
|
34 |
from time import time, mktime |
35 |
from urllib import quote, unquote |
36 |
|
37 |
from astakos.im.models import User |
38 |
|
39 |
|
40 |
def get_user_from_token(token): |
41 |
try:
|
42 |
return User.objects.get(auth_token=token)
|
43 |
except User.DoesNotExist:
|
44 |
return None |
45 |
|
46 |
|
47 |
class AuthMiddleware(object): |
48 |
def process_request(self, request): |
49 |
request.user = None
|
50 |
request.user_uniq = None
|
51 |
|
52 |
# Try to find token in a parameter, in a request header, or in a cookie.
|
53 |
user = get_user_from_token(request.GET.get('X-Auth-Token'))
|
54 |
if not user: |
55 |
user = get_user_from_token(request.META.get('HTTP_X_AUTH_TOKEN'))
|
56 |
if not user: |
57 |
# Back from an im login target.
|
58 |
if request.GET.get('user', None): |
59 |
token = request.GET.get('token', None) |
60 |
if token:
|
61 |
request.set_auth_cookie = True
|
62 |
user = get_user_from_token(token) |
63 |
if not user: |
64 |
cookie_value = unquote(request.COOKIES.get('_pithos2_a', '')) |
65 |
if cookie_value and '|' in cookie_value: |
66 |
token = cookie_value.split('|', 1)[1] |
67 |
user = get_user_from_token(token) |
68 |
if not user: |
69 |
return
|
70 |
|
71 |
# Check if the is active.
|
72 |
if user.state != 'ACTIVE': |
73 |
return
|
74 |
|
75 |
# Check if the token has expired.
|
76 |
if (time() - mktime(user.auth_token_expires.timetuple())) > 0: |
77 |
return
|
78 |
|
79 |
request.user = user |
80 |
request.user_uniq = user.uniq |
81 |
|
82 |
def process_response(self, request, response): |
83 |
if getattr(request, 'user', None) and getattr(request, 'set_auth_cookie', False): |
84 |
expire_fmt = request.user.auth_token_expires.strftime('%a, %d-%b-%Y %H:%M:%S %Z')
|
85 |
cookie_value = quote(request.user.uniq + '|' + request.user.auth_token)
|
86 |
response.set_cookie('_pithos2_a', value=cookie_value, expires=expire_fmt, path='/') |
87 |
return response
|