respect access_restriction in mapdata API

src/c3nav/mapdata/api.py

@@ -29,6 +29,12 @@ def optimize_query(qs):
 
 
 class MapdataViewSet(ReadOnlyModelViewSet):
+    def get_queryset(self):
+        qs = super().get_queryset()
+        if hasattr(qs.model, 'qs_for_request'):
+            return qs.model.qs_for_request(self.request)
+        return qs
+
     def list(self, request, *args, **kwargs):
         qs = optimize_query(self.get_queryset())
         geometry = ('geometry' in request.GET)
@@ -36,7 +42,7 @@ class MapdataViewSet(ReadOnlyModelViewSet):
             if not request.GET['level'].isdigit():
                 raise ValidationError(detail={'detail': _('%s is not an integer.') % 'level'})
             try:
-                level = Level.objects.get(pk=request.GET['level'])
+                level = Level.qs_for_request(request).get(pk=request.GET['level'])
             except Level.DoesNotExist:
                 raise NotFound(detail=_('level not found.'))
             qs = qs.filter(level=level)
@@ -44,7 +50,7 @@ class MapdataViewSet(ReadOnlyModelViewSet):
             if not request.GET['space'].isdigit():
                 raise ValidationError(detail={'detail': _('%s is not an integer.') % 'space'})
             try:
-                space = Space.objects.get(pk=request.GET['space'])
+                space = Space.qs_for_request(request).get(pk=request.GET['space'])
             except Space.DoesNotExist:
                 raise NotFound(detail=_('space not found.'))
             qs = qs.filter(space=space)
@@ -187,6 +193,8 @@ class LocationViewSet(RetrieveModelMixin, GenericViewSet):
                                                    for name, value in subconditions.items()))
             if group is not None:
                 condition &= Q(**{model._meta.default_related_name+'__groups': group})
+            # noinspection PyUnresolvedReferences
+            condition &= model.q_for_request(self.request, prefix=model._meta.default_related_name+'__')
             conditions.append(condition)
         queryset = queryset.filter(reduce(operator.or_, conditions))
 

src/c3nav/mapdata/models/access.py

@@ -1,4 +1,5 @@
 from django.db import models
+from django.db.models import Q
 from django.utils.translation import ugettext_lazy as _
 
 from c3nav.mapdata.models.base import SerializableMixin, TitledMixin
@@ -35,6 +36,10 @@ class AccessRestrictionMixin(SerializableMixin, models.Model):
 
     @classmethod
     def qs_for_request(cls, request):
+        return cls.objects.filter(cls.q_for_request(request))
+
+    @classmethod
+    def q_for_request(cls, request, prefix=''):
         if request.user.is_authenticated and request.user.is_superuser:
-            return cls.objects.all()
-        return cls.objects.filter(access_restriction__isnull=True)
+            return Q()
+        return Q(**{prefix+'access_restriction__isnull': True})