Refactor LDAP support and add LDAP caching

django_etebase/token_auth/authentication.py

@@ -1,15 +1,11 @@
 from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
-from .. import app_settings
 
 from rest_framework import exceptions
 from rest_framework.authentication import TokenAuthentication as DRFTokenAuthentication
 
 from .models import AuthToken, get_default_expiry
 
-if app_settings.USE_LDAP:
-    from ..ldap import LDAPConnection
-
 
 AUTO_REFRESH = True
 MIN_REFRESH_INTERVAL = 60
@@ -26,10 +22,6 @@ class TokenAuthentication(DRFTokenAuthentication):
         except model.DoesNotExist:
             raise exceptions.AuthenticationFailed(msg)
 
-        if app_settings.USE_LDAP:
-            if not LDAPConnection.get_instance().has_user(token.user.username):
-                raise exceptions.AuthenticationFailed('User is not listed in the LDAP registry.')
-
         if not token.user.is_active:
             raise exceptions.AuthenticationFailed(_('User inactive or deleted.'))