setting, session and profile

frontend/src/auth.js

@@ -0,0 +1,28 @@
+export const AUTH_TOKEN_KEY = "agmail_access_token";
+export const AUTH_ACCOUNT_KEY = "agmail_account";
+
+let sessionRedirecting = false;
+
+export function getAccessToken() {
+  return sessionStorage.getItem(AUTH_TOKEN_KEY);
+}
+
+export function isLoggedIn() {
+  return Boolean(getAccessToken());
+}
+
+export function clearSession() {
+  sessionStorage.removeItem(AUTH_TOKEN_KEY);
+  sessionStorage.removeItem(AUTH_ACCOUNT_KEY);
+}
+
+export function getBrandHomeHref() {
+  return isLoggedIn() ? "/app" : "/";
+}
+
+export function redirectSessionExpired() {
+  if (sessionRedirecting) return;
+  sessionRedirecting = true;
+  clearSession();
+  window.location.replace("/?session=expired");
+}