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22 | from django.contrib.auth import get_user_model
from django.contrib.auth.backends import ModelBackend
class CaseInsensitiveModelBackend(ModelBackend):
def authenticate(self, request, username=None, password=None, **kwargs):
UserModel = get_user_model()
try:
user = UserModel.objects.get(username__iexact=username)
except UserModel.DoesNotExist:
return None
else:
if user.check_password(password):
return user
return None
def get_user(self, user_id):
UserModel = get_user_model()
try:
return UserModel.objects.get(pk=user_id)
except UserModel.DoesNotExist:
return None
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