disable external recipes in hosted version

cookbook/views/data.py

@@ -25,6 +25,7 @@ from cookbook.helper.recipe_url_import import parse_cooktime
 from cookbook.models import (Comment, Food, Ingredient, Keyword, Recipe,
                              RecipeImport, Step, Sync, Unit, UserPreference)
 from cookbook.tables import SyncTable
+from recipes import settings
 
 
 @group_required('user')
@@ -37,6 +38,10 @@ def sync(request):
         messages.add_message(request, messages.WARNING, _('You have more users than allowed in your space.'))
         return HttpResponseRedirect(reverse('index'))
 
+    if request.space.demo or settings.HOSTED:
+        messages.add_message(request, messages.ERROR, _('This feature is not yet available in the hosted version of tandoor!'))
+        return redirect('index')
+
     if request.method == "POST":
         if not has_group_permission(request.user, ['admin']):
             messages.add_message(request, messages.ERROR, _('You do not have the required permissions to view this page!'))