Created
October 15, 2019 18:10
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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() | |
if username is None: | |
username = kwargs.get(UserModel.USERNAME_FIELD) | |
try: | |
case_insensitive_username_field = '{}__iexact'.format(UserModel.USERNAME_FIELD) | |
user = UserModel._default_manager.get(**{case_insensitive_username_field: username}) | |
except UserModel.DoesNotExist: | |
# Run the default password hasher once to reduce the timing | |
# difference between an existing and a non-existing user (#20760). | |
UserModel().set_password(password) | |
else: | |
if user.check_password(password) and self.user_can_authenticate(user): | |
return user |
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