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