Synnefo

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from django.http import HttpResponseBadRequest

from django.core.urlresolvers import reverse

from django.contrib.auth import authenticate

from astakos.im.target.util import prepare_response

from astakos.im.util import get_or_create_user

class Tokens:

    # these are mapped by the Shibboleth SP software

    SHIB_EPPN = "HTTP_EPPN" # eduPersonPrincipalName

    SHIB_NAME = "HTTP_SHIB_INETORGPERSON_GIVENNAME"

    SHIB_SURNAME = "HTTP_SHIB_PERSON_SURNAME"

    SHIB_CN = "HTTP_SHIB_PERSON_COMMONNAME"

    SHIB_DISPLAYNAME = "HTTP_SHIB_INETORGPERSON_DISPLAYNAME"

    SHIB_EP_AFFILIATION = "HTTP_SHIB_EP_AFFILIATION"

    SHIB_SESSION_ID = "HTTP_SHIB_SESSION_ID"

def login(request):

    tokens = request.META

    try:

        eppn = tokens[Tokens.SHIB_EPPN]

    except KeyError:

        return HttpResponseBadRequest("Missing unique token in request")

    if Tokens.SHIB_DISPLAYNAME in tokens:

        realname = tokens[Tokens.SHIB_DISPLAYNAME]

    elif Tokens.SHIB_CN in tokens:

        realname = tokens[Tokens.SHIB_CN]

    elif Tokens.SHIB_NAME in tokens and Tokens.SHIB_SURNAME in tokens:

        realname = tokens[Tokens.SHIB_NAME] + ' ' + tokens[Tokens.SHIB_SURNAME]

    else:

        return HttpResponseBadRequest("Missing user name in request")

    affiliation = tokens.get(Tokens.SHIB_EP_AFFILIATION, '')

    user = get_or_create_user(eppn, realname=realname, affiliation=affiliation, provider='shibboleth', level=0)

    # in order to login the user we must call authenticate first

    user = authenticate(email=user.email, auth_token=user.auth_token)

    return prepare_response(request,

                            user,

                            request.GET.get('next'),

                            'renew' in request.GET)