Add options validation

hassio/api/homeassistant.py

@@ -2,11 +2,17 @@
 import asyncio
 import logging
 
-from .util import api_process, json_loads
+import voluptuous as vol
+
+from .util import api_process, api_validate
 from ..const import ATTR_VERSION, ATTR_CURRENT
 
 _LOGGER = logging.getLogger(__name__)
 
+SCHEMA_VERSION = vol.Schema({
+    vol.Optional(ATTR_VERSION): vol.Coerce(str),
+})
+
 
 class APIHomeAssistant(object):
     """Handle rest api for homeassistant functions."""
@@ -30,7 +36,7 @@ class APIHomeAssistant(object):
     @api_process
     async def update(self, request):
         """Update host OS."""
-        body = await request.json(loads=json_loads)
+        body = await api_validate(SCHEMA_VERSION, request)
         version = body.get(ATTR_VERSION, self.config.current_homeassistant)
 
         if self.dock_hass.in_progress: