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36 from urlparse import urlsplit, urlunsplit
38 from django.http import HttpResponse, HttpResponseBadRequest
39 from django.utils.http import urlencode
40 #from django.utils.cache import patch_vary_headers
42 from models import User
46 # these are mapped by the Shibboleth SP software
47 SHIB_EPPN = "HTTP_EPPN" # eduPersonPrincipalName
48 SHIB_NAME = "HTTP_SHIB_INETORGPERSON_GIVENNAME"
49 SHIB_SURNAME = "HTTP_SHIB_PERSON_SURNAME"
50 SHIB_CN = "HTTP_SHIB_PERSON_COMMONNAME"
51 SHIB_DISPLAYNAME = "HTTP_SHIB_INETORGPERSON_DISPLAYNAME"
52 SHIB_EP_AFFILIATION = "HTTP_SHIB_EP_AFFILIATION"
53 SHIB_SESSION_ID = "HTTP_SHIB_SESSION_ID"
57 """Register a user into the internal database
58 and issue a token for subsequent requests.
59 Users are authenticated by Shibboleth.
61 Return the unique username and the token
62 as 'X-Auth-User' and 'X-Auth-Token' headers,
63 or redirect to the URL provided in 'next'
64 with the 'user' and 'token' as parameters.
66 Reissue the token even if it has not yet
67 expired, if the 'renew' parameter is present.
71 user = User.objects.get(uniq=request.META[Tokens.SHIB_EPPN])
78 eppn = tokens[Tokens.SHIB_EPPN]
80 return HttpResponseBadRequest("Missing unique token in request")
82 if Tokens.SHIB_DISPLAYNAME in tokens:
83 realname = tokens[Tokens.SHIB_DISPLAYNAME]
84 elif Tokens.SHIB_CN in tokens:
85 realname = tokens[Tokens.SHIB_CN]
86 elif Tokens.SHIB_NAME in tokens and Tokens.SHIB_SURNAME in tokens:
87 realname = tokens[Tokens.SHIB_NAME] + ' ' + tokens[Tokens.SHIB_SURNAME]
89 return HttpResponseBadRequest("Missing user name in request")
93 user.realname = realname
94 user.affiliation = tokens.get(Tokens.SHIB_EP_AFFILIATION, '')
98 if 'renew' in request.GET or user.auth_token_expires < datetime.datetime.now():
101 next = request.GET.get('next')
103 # TODO: Avoid redirect loops.
104 parts = list(urlsplit(next))
105 parts[3] = urlencode({'user': user.uniq, 'token': user.auth_token})
106 next = urlunsplit(parts)
108 response = HttpResponse()
109 # TODO: Cookie should only be set at the client side...
110 #expire_fmt = user.auth_token_expires.strftime('%a, %d-%b-%Y %H:%M:%S %Z')
111 #response.set_cookie('X-Auth-Token', value=user.auth_token, expires=expire_fmt, path='/')
113 response['X-Auth-User'] = user.uniq
114 response['X-Auth-Token'] = user.auth_token
115 response.content = user.uniq + '\n' + user.auth_token + '\n'
116 response.status_code = 200
118 response['Location'] = next
119 response.status_code = 302