1 # Copyright 2011-2012 GRNET S.A. All rights reserved.
3 # Redistribution and use in source and binary forms, with or
4 # without modification, are permitted provided that the following
7 # 1. Redistributions of source code must retain the above
8 # copyright notice, this list of conditions and the following
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.
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.
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.
38 from urllib import quote
40 from datetime import tzinfo, timedelta
41 from django.http import HttpResponse, HttpResponseBadRequest, urlencode
42 from django.template import RequestContext
43 from django.utils.translation import ugettext as _
44 from django.contrib.auth import authenticate
45 from django.core.urlresolvers import reverse
46 from django.core.exceptions import ValidationError
48 from astakos.im.models import AstakosUser, Invitation
49 from astakos.im.settings import COOKIE_NAME, \
50 COOKIE_DOMAIN, COOKIE_SECURE, FORCE_PROFILE_UPDATE, LOGGING_LEVEL
51 from astakos.im.functions import login
53 logger = logging.getLogger(__name__)
57 def utcoffset(self, dt):
68 """Return an ISO8601 date string that includes a timezone."""
70 return d.replace(tzinfo=UTC()).isoformat()
74 return int(time.mktime(datetime.timetuple()) * 1000)
77 def get_context(request, extra_context=None, **kwargs):
78 extra_context = extra_context or {}
79 extra_context.update(kwargs)
80 return RequestContext(request, extra_context)
83 def get_invitation(request):
85 Returns the invitation identified by the ``code``.
87 Raises ValueError if the invitation is consumed or there is another account
88 associated with this email.
90 code = request.GET.get('code')
91 if request.method == 'POST':
92 code = request.POST.get('code')
95 invitation = Invitation.objects.get(code=code)
96 if invitation.is_consumed:
97 raise ValueError(_('Invitation is used'))
98 if reserved_email(invitation.username):
99 raise ValueError(_('Email: %s is reserved' % invitation.username))
103 def prepare_response(request, user, next='', renew=False):
104 """Return the unique username and the token
105 as 'X-Auth-User' and 'X-Auth-Token' headers,
106 or redirect to the URL provided in 'next'
107 with the 'user' and 'token' as parameters.
109 Reissue the token even if it has not yet
110 expired, if the 'renew' parameter is present
111 or user has not a valid token.
113 renew = renew or (not user.auth_token)
114 renew = renew or (user.auth_token_expires < datetime.datetime.now())
119 except ValidationError, e:
120 return HttpResponseBadRequest(e)
122 if FORCE_PROFILE_UPDATE and not user.is_verified and not user.is_superuser:
125 params = '?' + urlencode({'next': next})
126 next = reverse('edit_profile') + params
128 response = HttpResponse()
130 # authenticate before login
131 user = authenticate(email=user.email, auth_token=user.auth_token)
133 set_cookie(response, user)
134 request.session.set_expiry(user.auth_token_expires)
137 next = reverse('index')
139 response['Location'] = next
140 response.status_code = 302
144 def set_cookie(response, user):
145 expire_fmt = user.auth_token_expires.strftime('%a, %d-%b-%Y %H:%M:%S %Z')
146 cookie_value = quote(user.email + '|' + user.auth_token)
147 response.set_cookie(COOKIE_NAME, value=cookie_value,
148 expires=expire_fmt, path='/',
149 domain=COOKIE_DOMAIN, secure=COOKIE_SECURE
151 msg = 'Cookie [expiring %s] set for %s' % (
152 user.auth_token_expires,
155 logger.log(LOGGING_LEVEL, msg)
158 class lazy_string(object):
159 def __init__(self, function, *args, **kwargs):
160 self.function = function
165 if not hasattr(self, 'str'):
166 self.str = self.function(*self.args, **self.kwargs)
170 def reverse_lazy(*args, **kwargs):
171 return lazy_string(reverse, *args, **kwargs)
174 def reserved_email(email):
175 return AstakosUser.objects.filter(email=email).count() != 0
178 def get_query(request):
180 return request.__getattribute__(request.method)
181 except AttributeError: