auth: avoid infinite loop of redirect and auth after token is expired (#1758)

apps/readest-app/src/app/auth/page.tsx

@@ -24,6 +24,7 @@ import { start, cancel, onUrl, onInvalidUrl } from '@fabianlars/tauri-plugin-oau
 import { openUrl } from '@tauri-apps/plugin-opener';
 import { invoke } from '@tauri-apps/api/core';
 import { handleAuthCallback } from '@/helpers/auth';
+import { getUserPlan } from '@/utils/access';
 import { getAppleIdAuth, Scope } from './utils/appleIdAuth';
 import { authWithCustomTab, authWithSafari } from './utils/nativeAuth';
 import WindowButtons from '@/components/WindowButtons';
@@ -170,8 +171,11 @@ export default function AuthPage() {
       const accessToken = params.get('access_token');
       const refreshToken = params.get('refresh_token');
       const type = params.get('type');
-      const next = params.get('next') ?? '/';
       if (accessToken) {
+        let next = params.get('next') ?? '/';
+        if (getUserPlan(accessToken) === 'free') {
+          next = '/user';
+        }
         handleAuthCallback({ accessToken, refreshToken, type, next, login, navigate: router.push });
       }
     }
@@ -310,7 +314,13 @@ export default function AuthPage() {
       if (session?.access_token && session.user) {
         login(session.access_token, session.user);
         const redirectTo = new URLSearchParams(window.location.search).get('redirect');
-        router.push(redirectTo ?? '/library');
+        const lastRedirectAtKey = 'lastRedirectAt';
+        const lastRedirectAt = parseInt(localStorage.getItem(lastRedirectAtKey) || '0', 10);
+        const now = Date.now();
+        localStorage.setItem(lastRedirectAtKey, now.toString());
+        if (now - lastRedirectAt > 3000) {
+          router.push(redirectTo ?? '/library');
+        }
       }
     });