chore: Remove optional args to create_metadata_string

Signed-off-by: Ivan Kanakarakis <ivan.kanak@gmail.com>

Author: c00kiemon5ter

src/satosa/backends/saml2.py

@@ -452,8 +452,9 @@ def _metadata_endpoint(self, context):
         logline = lu.LOG_FMT.format(id=lu.get_session_id(context.state), message=msg)
         logger.debug(logline)
 
-        metadata_string = create_metadata_string(None, self.sp.config, 4, None, None, None, None,
-                                                 None).decode("utf-8")
+        metadata_string = create_metadata_string(
+            configfile=None, config=self.sp.config, valid=4
+        ).decode("utf-8")
         return Response(metadata_string, content="text/xml")
 
     def register_endpoints(self):

src/satosa/frontends/saml2.py

@@ -486,8 +486,9 @@ def _metadata_endpoint(self, context):
         msg = "Sending metadata response for entityId = {}".format(self.idp.config.entityid)
         logline = lu.LOG_FMT.format(id=lu.get_session_id(context.state), message=msg)
         logger.debug(logline)
-        metadata_string = create_metadata_string(None, self.idp.config, 4, None, None, None, None,
-                                                 None).decode("utf-8")
+        metadata_string = create_metadata_string(
+            configfile=None, config=self.idp.config, valid=4
+        ).decode("utf-8")
         return Response(metadata_string, content="text/xml")
 
     def _reload_metadata(self, context):