feat: add server default locale setting (#1536)

* feat: add server default locale setting

* fix: do not modify defaultLocale property of IntlProvider

server/interfaces/api/settingsInterfaces.ts

@@ -32,6 +32,7 @@ export interface PublicSettingsResponse {
   cacheImages: boolean;
   vapidPublic: string;
   enablePushRegistration: boolean;
+  locale: string;
 }
 
 export interface CacheItem {

server/lib/settings.ts

@@ -88,6 +88,7 @@ export interface MainSettings {
   originalLanguage: string;
   trustProxy: boolean;
   partialRequestsEnabled: boolean;
+  locale: string;
 }
 
 interface PublicSettings {
@@ -106,6 +107,7 @@ interface FullPublicSettings extends PublicSettings {
   cacheImages: boolean;
   vapidPublic: string;
   enablePushRegistration: boolean;
+  locale: string;
 }
 
 export interface NotificationAgentConfig {
@@ -249,6 +251,7 @@ class Settings {
         originalLanguage: '',
         trustProxy: false,
         partialRequestsEnabled: true,
+        locale: 'en',
       },
       plex: {
         name: '',
@@ -411,6 +414,7 @@ class Settings {
       cacheImages: this.data.main.cacheImages,
       vapidPublic: this.vapidPublic,
       enablePushRegistration: this.data.notifications.agents.webpush.enabled,
+      locale: this.data.main.locale,
     };
   }
 

server/middleware/auth.ts

@@ -5,6 +5,7 @@ import { getSettings } from '../lib/settings';
 
 export const checkUser: Middleware = async (req, _res, next) => {
   const settings = getSettings();
+
   if (req.header('X-API-Key') === settings.main.apiKey) {
     const userRepository = getRepository(User);
 
@@ -28,9 +29,12 @@ export const checkUser: Middleware = async (req, _res, next) => {
 
     if (user) {
       req.user = user;
-      req.locale = user.settings?.locale;
+      req.locale = user.settings?.locale
+        ? user.settings?.locale
+        : settings.main.locale;
     }
   }
+
   next();
 };