Web: Already provide "teams.json" as soon as registration is closed

It doesn't hurt us and teams might already benefit from it.

Co-authored-by: Simon Ruderich <simon@ruderich.org>

src/ctf_gameserver/web/scoring/decorators.py

@@ -26,6 +26,23 @@ def func(request, *args, **kwargs):
     return func
 
 
+def registration_closed_required(view):
+    """
+    View decorator which only allows access to the decorated view if registration is closed from the
+    GameControl object.
+    Format of the response is currently always JSON.
+    """
+
+    @wraps(view)
+    def func(request, *args, **kwargs):
+        if GameControl.get_instance().registration_open:
+            return JsonResponse({'error': 'Not available yet'}, status=404)
+
+        return view(request, *args, **kwargs)
+
+    return func
+
+
 def services_public_required(resp_format):
     """
     View decorator which prohibits access to the decorated view if information about the services is not

src/ctf_gameserver/web/scoring/views.py

@@ -8,7 +8,7 @@
 import ctf_gameserver.web.registration.models as registration_models
 
 from . import models, calculations
-from .decorators import services_public_required
+from .decorators import registration_closed_required, services_public_required
 
 
 @services_public_required('html')
@@ -166,7 +166,7 @@ def service_status_json(_):
 @cache_page(60)
 # Don't provide a list of all teams while registration is open to prevent
 # crawling of registered teams and comparing with this list
-@services_public_required('json')
+@registration_closed_required
 def teams_json(_):
 
     teams = registration_models.Team.active_objects.values_list('net_number', flat=True)