feat: Fetch avatar from GitHub automatically

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.5.4",
+  "version": "2.6.0",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {

backend/src/restful/settings.js

@@ -3,7 +3,9 @@ import { success } from './response';
 import $ from '@/core/app';
 
 export default function register($app) {
-    if (!$.read(SETTINGS_KEY)) $.write({}, SETTINGS_KEY);
+    const settings = $.read(SETTINGS_KEY);
+    if (!settings) $.write({}, SETTINGS_KEY);
+    if (!settings.avatarUrl) updateGitHubAvatar();
     $app.route('/api/settings').get(getSettings).patch(updateSettings);
 }
 
@@ -12,12 +14,35 @@ function getSettings(req, res) {
     success(res, settings);
 }
 
-function updateSettings(req, res) {
+async function updateSettings(req, res) {
     const settings = $.read(SETTINGS_KEY);
     const newSettings = {
         ...settings,
         ...req.body,
     };
     $.write(newSettings, SETTINGS_KEY);
+    await updateGitHubAvatar();
     success(res, newSettings);
 }
+
+async function updateGitHubAvatar() {
+    const settings = $.read(SETTINGS_KEY);
+    const username = settings.githubUser;
+    if (username) {
+        try {
+            const data = await $.http
+                .get({
+                    url: `https://api.github.com/users/${username}`,
+                    headers: {
+                        'User-Agent':
+                            'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.141 Safari/537.36',
+                    },
+                })
+                .then((resp) => JSON.parse(resp.body));
+            settings.avatarUrl = data['avatar_url'];
+            $.write(settings, SETTINGS_KEY);
+        } catch (e) {
+            $.error('Failed to fetch GitHub avatar for User: ' + username);
+        }
+    }
+}