Local Fallback

[ryanmerolle]

For lack of a spot to discuss this, I posted here, but I get this is super annoying for a project to have Q&A in issues.

In NetBox https://github.com/netbox-community/netbox/blob/develop/netbox/netbox/api/authentication.py#L28-L38

We check if REMOTE_AUTH_BACKEND is set and then import LDAPBackend. A user noticed if LDAP is reachable, local users can authenticate after LDAP is checked for the user, which is as intended. BUT when LDAP is unreachable, local users are unable to authenticate. Is there a LDAP status check we can use for logic to move onto just local authentication if LDAP is status is down?

Thanks for this great package!

[francoisfreitag]

Could you catch the ldap_error signal, inspect the cause for the exception and perform local authentication when the issue is a connection error to the LDAP?

django-auth-ldap/django_auth_ldap/backend.py

Lines 416 to 423 in 8c2eb6a

	except ldap.LDAPError as e:
	results = ldap_error.send(
	type(self.backend),
	context="populate_user",
	user=self._user,
	request=self._request,
	exception=e,
	)