feat (restful): Add /api/utils/refresh

The API call does the following:
- Fetch GitHub avatar and update artifact store url
- Revoke all cached resources

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.9.0",
+  "version": "2.10.0",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {

backend/src/constants.js

@@ -8,4 +8,4 @@ export const GIST_BACKUP_KEY = 'Auto Generated Sub-Store Backup';
 export const GIST_BACKUP_FILE_NAME = 'Sub-Store';
 export const ARTIFACT_REPOSITORY_KEY = 'Sub-Store Artifacts Repository';
 export const RESOURCE_CACHE_KEY = '#sub-store-cached-resource';
-export const CACHE_EXPIRATION_TIME_MS = 5 * 60 * 1000;
+export const CACHE_EXPIRATION_TIME_MS = 60 * 60 * 1000; // 1 hour

backend/src/restful/index.js

@@ -14,11 +14,15 @@ import registerSubscriptionRoutes from './subscriptions';
 import registerCollectionRoutes from './collections';
 import registerArtifactRoutes from './artifacts';
 import registerDownloadRoutes from './download';
-import registerSettingRoutes from './settings';
+import registerSettingRoutes, {
+    updateArtifactStore,
+    updateGitHubAvatar,
+} from './settings';
 import registerPreviewRoutes from './preview';
 import registerSortingRoutes from './sort';
 import { failed, success } from '@/restful/response';
 import { InternalServerError, RequestInvalidError } from '@/restful/errors';
+import resourceCache from '@/utils/resource-cache';
 
 export default function serve() {
     const $app = express({ substore: $ });
@@ -36,6 +40,7 @@ export default function serve() {
     $app.get('/api/utils/IP_API/:server', IP_API); // IP-API reverse proxy
     $app.get('/api/utils/env', getEnv); // get runtime environment
     $app.get('/api/utils/backup', gistBackup); // gist backup actions
+    $app.get('/api/utils/refresh', refresh);
 
     // Storage management
     $app.route('/api/storage')
@@ -84,6 +89,16 @@ function getEnv(req, res) {
     });
 }
 
+async function refresh(_, res) {
+    // 1. get GitHub avatar and artifact store
+    await updateGitHubAvatar();
+    await updateArtifactStore();
+
+    // 2. clear resource cache
+    resourceCache.revokeAll();
+    success(res);
+}
+
 async function gistBackup(req, res) {
     const { action } = req.query;
     // read token

backend/src/restful/settings.js

@@ -28,7 +28,7 @@ async function updateSettings(req, res) {
     success(res, newSettings);
 }
 
-async function updateGitHubAvatar() {
+export async function updateGitHubAvatar() {
     const settings = $.read(SETTINGS_KEY);
     const username = settings.githubUser;
     if (username) {
@@ -50,7 +50,7 @@ async function updateGitHubAvatar() {
     }
 }
 
-async function updateArtifactStore() {
+export async function updateArtifactStore() {
     $.log('Updating artifact store');
     const settings = $.read(SETTINGS_KEY);
     const { githubUser, gistToken } = settings;

backend/src/utils/resource-cache.js

@@ -25,6 +25,14 @@ class ResourceCache {
         if (clear) this._persist();
     }
 
+    revokeAll() {
+        Object.keys(this.resourceCache).forEach((id) => {
+            $.delete(`#${id}`);
+        });
+        this.resourceCache = {};
+        this._persist();
+    }
+
     _persist() {
         $.write(JSON.stringify(this.resourceCache), RESOURCE_CACHE_KEY);
     }