Allow overriding global configuration options

> keycheck off
> safety off
> sl off

Author: shepmaster

ui/frontend/index.tsx

@@ -16,7 +16,7 @@ import PageSwitcher from './PageSwitcher';
 import playgroundApp from './reducers';
 import { clientSetIdentifiers } from './reducers/client';
 import { featureFlagsForceDisableAll, featureFlagsForceEnableAll } from './reducers/featureFlags';
-import { disableSyncChangesToStorage } from './reducers/globalConfiguration';
+import { disableSyncChangesToStorage, override } from './reducers/globalConfiguration';
 import Router from './Router';
 import configureStore from './configureStore';
 import { performVersionsLoad } from './reducers/versions';
@@ -49,6 +49,10 @@ if (params.has('features')) {
     store.dispatch(featureFlagsForceEnableAll());
   }
 }
+const configOverrides = params.get('whte_rbt.obj');
+if (configOverrides) {
+  store.dispatch(override(configOverrides));
+}
 
 const whenBrowserWidthChanged = (evt: MediaQueryList | MediaQueryListEvent) =>
   store.dispatch(browserWidthChanged(evt.matches));

ui/frontend/reducers/globalConfiguration.ts

@@ -1,9 +1,13 @@
-import { createSlice } from '@reduxjs/toolkit';
+import { PayloadAction, createSlice } from '@reduxjs/toolkit';
+import * as z from 'zod';
 
-interface State {
-  baseUrl: string;
-  syncChangesToStorage: boolean;
-}
+const StateOverride = z.object({
+  baseUrl: z.string().optional(),
+  syncChangesToStorage: z.boolean().optional(),
+});
+type StateOverride = z.infer<typeof StateOverride>;
+
+type State = Required<StateOverride>;
 
 const initialState: State = {
   baseUrl: '',
@@ -17,9 +21,19 @@ const slice = createSlice({
     disableSyncChangesToStorage: (state) => {
       state.syncChangesToStorage = false;
     },
+
+    override: (state, action: PayloadAction<string>) => {
+      try {
+        const object = JSON.parse(action.payload);
+        const parsed = StateOverride.parse(object);
+        Object.assign(state, parsed);
+      } catch {
+        // Do nothing
+      }
+    },
   },
 });
 
-export const { disableSyncChangesToStorage } = slice.actions;
+export const { disableSyncChangesToStorage, override } = slice.actions;
 
 export default slice.reducer;