1 # Copyright 2011 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.
36 from django.http import HttpResponse, HttpResponseBadRequest
37 from django.utils.http import urlencode
38 #from django.utils.cache import patch_vary_headers
40 from models import User
44 # these are mapped by the Shibboleth SP software
45 SHIB_EPPN = "HTTP_EPPN" # eduPersonPrincipalName
46 SHIB_NAME = "HTTP_SHIB_INETORGPERSON_GIVENNAME"
47 SHIB_SURNAME = "HTTP_SHIB_PERSON_SURNAME"
48 SHIB_CN = "HTTP_SHIB_PERSON_COMMONNAME"
49 SHIB_DISPLAYNAME = "HTTP_SHIB_INETORGPERSON_DISPLAYNAME"
50 SHIB_EP_AFFILIATION = "HTTP_SHIB_EP_AFFILIATION"
51 SHIB_SESSION_ID = "HTTP_SHIB_SESSION_ID"
55 """Register a user into the internal database
56 and issue a token for subsequent requests.
57 Users are authenticated by Shibboleth.
59 Return the unique username and the token
60 as 'X-Auth-User' and 'X-Auth-Token' headers,
61 or redirect to the URL provided in 'next'
62 with the 'user' and 'token' as parameters.
64 Reissue the token even if it has not yet
65 expired, if the 'renew' parameter is present.
69 user = User.objects.get(uniq=request.META[Tokens.SHIB_EPPN])
74 eppn = tokens[Tokens.SHIB_EPPN]
76 return HttpResponseBadRequest("Missing unique token in request")
78 if Tokens.SHIB_DISPLAYNAME in tokens:
79 realname = tokens[Tokens.SHIB_DISPLAYNAME]
80 elif Tokens.SHIB_CN in tokens:
81 realname = tokens[Tokens.SHIB_CN]
82 elif Tokens.SHIB_NAME in tokens and Tokens.SHIB_SURNAME in tokens:
83 realname = tokens[Tokens.SHIB_NAME] + ' ' + tokens[Tokens.SHIB_SURNAME]
85 return HttpResponseBadRequest("Missing user name in request")
89 user.realname = realname
90 user.affiliation = tokens.get(Tokens.SHIB_EP_AFFILIATION, '')
94 if 'renew' in request.GET or user.auth_token_expires < datetime.datetime.now():
97 next = request.GET.get('next')
99 # TODO: Avoid redirect loops.
101 next = next[:next.find('?')]
102 next += '?' + urlencode({'user': user.uniq,
103 'token': user.auth_token})
105 response = HttpResponse()
106 expire_fmt = user.auth_token_expires.strftime('%a, %d-%b-%Y %H:%M:%S %Z')
107 response.set_cookie('X-Auth-Token', value=user.auth_token, expires=expire_fmt, path='/')
109 response['X-Auth-User'] = user.uniq
110 response['X-Auth-Token'] = user.auth_token
111 response.content = user.uniq + '\n' + user.auth_token + '\n'
112 response.status_code = 200
114 response['Location'] = next
115 response.status_code = 302