Limit the size of then payload for creating robot accounts

endpoints/api/__init__.py

@@ -321,6 +321,18 @@ def require_scope(scope_object):
   return wrapper
 
 
+def max_json_size(max_size):
+  def wrapper(func):
+    @wraps(func)
+    def wrapped(self, *args, **kwargs):
+      if request.is_json and len(request.get_data()) > max_size:
+        raise InvalidRequest()
+        
+      return func(self, *args, **kwargs)
+    return wrapped
+  return wrapper
+
+
 def validate_json_request(schema_name, optional=False):
   def wrapper(func):
     @add_method_metadata('request_schema', schema_name)