TMSS-272: allow anyone to view our schema's

SAS/TMSS/src/tmss/tmssapp/views.py

@@ -6,6 +6,8 @@ from lofar.sas.tmss.tmss.tmssapp import models
 from lofar.sas.tmss.tmss.tmssapp.validation import get_default_json_object_for_schema
 from lofar.sas.tmss.tmss.tmssapp.adapters.parset import convert_to_parset
 from drf_yasg.utils import swagger_auto_schema
+from rest_framework.permissions import AllowAny
+from rest_framework.decorators import authentication_classes, permission_classes
 
 
 def subtask_template_default_specification(request, subtask_template_pk:int):
@@ -33,8 +35,10 @@ def task_specify_observation(request, pk=None):
     task = get_object_or_404(models.TaskDraft, pk=pk)
     return HttpResponse("response", content_type='text/plain')
 
+@permission_classes([AllowAny])
+@authentication_classes([AllowAny])
 @swagger_auto_schema(responses={200: 'JSON schema',
-                                403: 'forbidden'},
+                                404: 'the schema with requested <name> and <version> is not available'},
                      operation_description="Get the JSON schema with the given <name> and <version> as application/json content response.")
 def get_common_json_schema(request, name:str, version:str):
     template = get_object_or_404(models.CommonSchemaTemplate, name=name, version=version)