Ask MCP authorization servers for a refresh token (#180604)

homeassistant/components/mcp/config_flow.py

@@ -315,7 +315,11 @@ class ModelContextProtocolConfigFlow(AbstractOAuth2FlowHandler, domain=DOMAIN):
     @override
     def extra_authorize_data(self) -> dict:
         """Extra data that needs to be appended to the authorize url."""
-        data = {}
+        data = {
+            # Add params to ensure we get back a refresh token
+            "access_type": "offline",
+            "prompt": "consent",
+        }
         if self.data and (scopes := self.data[CONF_SCOPE]) is not None:
             data[CONF_SCOPE] = " ".join(scopes)
         data.update(super().extra_authorize_data)

tests/components/mcp/test_config_flow.py

@@ -341,7 +341,9 @@ async def perform_oauth_flow(
     assert result["url"] == (
         f"{authorize_url}?response_type=code&client_id={CLIENT_ID}"
         f"&redirect_uri={OAUTH_CALLBACK_URL}"
-        f"&state={state}{scope_param}"
+        f"&state={state}"
+        # Asked for so the server hands back a refresh token
+        f"&access_type=offline&prompt=consent{scope_param}"
     )
 
     client = await hass_client_no_auth()