cubetiq-fusion/frontend/auth.ts

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2021-07-25 17:44:30 +07:00
import { login as loginImpl, LoginResult, logout as logoutImpl } from '@vaadin/flow-frontend';
import { appStore } from './stores/app-store';
interface Authentication {
timestamp: number;
}
let authentication: Authentication | undefined = undefined;
const AUTHENTICATION_KEY = 'authentication';
const THIRTY_DAYS_MS = 30 * 24 * 60 * 60 * 1000;
// Get authentication from local storage
const storedAuthenticationJson = localStorage.getItem(AUTHENTICATION_KEY);
if (storedAuthenticationJson !== null) {
const storedAuthentication = JSON.parse(storedAuthenticationJson) as Authentication;
// Check that the stored timestamp is not older than 30 days
const hasRecentAuthenticationTimestamp = new Date().getTime() - storedAuthentication.timestamp < THIRTY_DAYS_MS;
if (hasRecentAuthenticationTimestamp) {
// Use loaded authentication
authentication = storedAuthentication;
} else {
// Delete expired stored authentication
setSessionExpired();
}
}
/**
* Forces the session to expire and removes user information stored in
* `localStorage`.
*/
export function setSessionExpired() {
authentication = undefined;
// Delete the authentication from the local storage
localStorage.removeItem(AUTHENTICATION_KEY);
}
export function isAuthenticated() {
return !!authentication;
}
/**
* Login wrapper method that retrieves user information.
*
* Uses `localStorage` for offline support.
*/
export async function login(username: string, password: string): Promise<LoginResult> {
const result = await loginImpl(username, password);
if (!result.error) {
// Get user info from endpoint
await appStore.fetchUserInfo();
authentication = {
timestamp: new Date().getTime(),
};
// Save the authentication to local storage
localStorage.setItem(AUTHENTICATION_KEY, JSON.stringify(authentication));
}
return result;
}
/**
* Login wrapper method that retrieves user information.
*
* Uses `localStorage` for offline support.
*/
export async function logout() {
setSessionExpired();
await logoutImpl();
appStore.clearUserInfo();
location.href = '';
}