69 lines
2.3 KiB
Python
69 lines
2.3 KiB
Python
from django.contrib.sites.models import Site
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from django.conf import settings
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from django_cas_ng.backends import CASBackend
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from django_cas_ng.utils import get_cas_client
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from django.contrib.auth import get_user_model
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from gestioncof.models import CofProfile
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User = get_user_model()
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class COFCASBackend(CASBackend):
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def authenticate_cas(self, ticket, service, request):
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"""Verifies CAS ticket and gets or creates User object"""
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client = get_cas_client(service_url=service)
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username, attributes, _ = client.verify_ticket(ticket)
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if attributes:
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request.session['attributes'] = attributes
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if not username:
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return None
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# Le CAS de l'ENS accepte les logins avec des espaces au début
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# et à la fin, ainsi qu’avec une casse variable. On normalise pour
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# éviter les doublons.
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username = username.strip().lower()
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profiles = CofProfile.objects.filter(login_clipper=username)
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if len(profiles) > 0:
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profile = profiles.order_by('-is_cof')[0]
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user = profile.user
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return user
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try:
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user = User.objects.get(username=username)
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except User.DoesNotExist:
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# user will have an "unusable" password
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user = User.objects.create_user(username, '')
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user.save()
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return user
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def authenticate(self, ticket, service, request):
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"""Authenticates CAS ticket and retrieves user data"""
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user = self.authenticate_cas(ticket, service, request)
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if user is None:
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return user
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try:
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profile = user.profile
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except CofProfile.DoesNotExist:
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profile, created = CofProfile.objects.get_or_create(user=user)
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profile.save()
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if not profile.login_clipper:
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profile.login_clipper = user.username
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profile.save()
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if not user.email:
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user.email = settings.CAS_EMAIL_FORMAT % profile.login_clipper
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user.save()
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if profile.is_buro and not user.is_staff:
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user.is_staff = True
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user.save()
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return user
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def context_processor(request):
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'''Append extra data to the context of the given request'''
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data = {
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"user": request.user,
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"site": Site.objects.get_current(),
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}
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return data
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