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
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26 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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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
39 from urlparse import urlsplit, urlunsplit
40 from functools import wraps
42 from datetime import tzinfo, timedelta
43 from django.http import HttpResponse, urlencode
44 from django.template import RequestContext
45 from django.contrib.sites.models import Site
46 from django.utils.translation import ugettext as _
47 from django.contrib.auth import login, authenticate
48 from django.core.urlresolvers import reverse
50 from astakos.im.models import AstakosUser, Invitation, ApprovalTerms
51 from astakos.im.settings import INVITATIONS_PER_LEVEL, COOKIE_NAME, COOKIE_DOMAIN, COOKIE_SECURE, FORCE_PROFILE_UPDATE
53 logger = logging.getLogger(__name__)
56 def utcoffset(self, dt):
66 """Return an ISO8601 date string that includes a timezone."""
68 return d.replace(tzinfo=UTC()).isoformat()
71 return int(time.mktime(datetime.timetuple())*1000)
73 def get_or_create_user(email, realname='', first_name='', last_name='', affiliation='', level=0, provider='local', password=''):
74 """Find or register a user into the internal database
75 and issue a token for subsequent requests.
77 user, created = AstakosUser.objects.get_or_create(email=email,
80 'affiliation':affiliation,
82 'invitations':INVITATIONS_PER_LEVEL.get(level, 0),
85 'first_name':first_name,
91 logger.info('Created user %s', user)
95 def get_context(request, extra_context={}, **kwargs):
98 extra_context.update(kwargs)
99 return RequestContext(request, extra_context)
101 def get_invitation(request):
103 Returns the invitation identified by the ``code``.
105 Raises ValueError if the invitation is consumed or there is another account
106 associated with this email.
108 code = request.GET.get('code')
109 if request.method == 'POST':
110 code = request.POST.get('code')
113 invitation = Invitation.objects.get(code = code)
114 if invitation.is_consumed:
115 raise ValueError(_('Invitation is used'))
116 if reserved_email(invitation.username):
117 raise ValueError(_('Email: %s is reserved' % invitation.username))
120 def prepare_response(request, user, next='', renew=False):
121 """Return the unique username and the token
122 as 'X-Auth-User' and 'X-Auth-Token' headers,
123 or redirect to the URL provided in 'next'
124 with the 'user' and 'token' as parameters.
126 Reissue the token even if it has not yet
127 expired, if the 'renew' parameter is present
128 or user has not a valid token.
130 renew = renew or (not user.auth_token)
131 renew = renew or (user.auth_token_expires and user.auth_token_expires < datetime.datetime.now())
136 if FORCE_PROFILE_UPDATE and not user.is_verified and not user.is_superuser:
139 params = '?' + urlencode({'next': next})
140 next = reverse('astakos.im.views.edit_profile') + params
142 response = HttpResponse()
144 # authenticate before login
145 user = authenticate(email=user.email, auth_token=user.auth_token)
147 set_cookie(response, user)
150 next = reverse('astakos.im.views.index')
152 response['Location'] = next
153 response.status_code = 302
156 def set_cookie(response, user):
157 expire_fmt = user.auth_token_expires.strftime('%a, %d-%b-%Y %H:%M:%S %Z')
158 cookie_value = quote(user.email + '|' + user.auth_token)
159 response.set_cookie(COOKIE_NAME, value=cookie_value,
160 expires=expire_fmt, path='/',
161 domain=COOKIE_DOMAIN, secure=COOKIE_SECURE)
163 class lazy_string(object):
164 def __init__(self, function, *args, **kwargs):
165 self.function=function
170 if not hasattr(self, 'str'):
171 self.str=self.function(*self.args, **self.kwargs)
174 def reverse_lazy(*args, **kwargs):
175 return lazy_string(reverse, *args, **kwargs)
177 def get_latest_terms():
179 term = ApprovalTerms.objects.order_by('-id')[0]
185 def has_signed_terms(user):
186 term = get_latest_terms()
189 if not user.has_signed_terms:
191 if not user.date_signed_terms:
193 if user.date_signed_terms < term.date:
194 user.has_signed_terms = False
199 def reserved_email(email):
200 return AstakosUser.objects.filter(email = email).count() != 0
202 def get_query(request):
203 return request.__getattribute__(request.method)