81 lines
2.5 KiB
JavaScript
81 lines
2.5 KiB
JavaScript
window.onload = function() {
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autoLogin();
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};
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var checkInfo = {};
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checkInfo.checkUsername = function() {
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let username = document.getElementById('username').value;
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if (username.length < 1) {
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document.getElementById('usernameError').textContent = '用户名不能为空';
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return false;
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}
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document.getElementById('usernameError').textContent = '';
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return true;
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}
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checkInfo.checkPassword = function() {
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let password = document.getElementById('password').value;
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let regexPassword = /^[A-Za-z0-9\W_]{6,20}$/;
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if (!regexPassword.test(password)) {
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document.getElementById('loginError').textContent = "密码须为长度为6-20位字母、数字或符号";
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return false;
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}
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document.getElementById('loginError').textContent = '';
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return true;
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}
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function submitForm() {
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if (checkInfo.checkUsername() && checkInfo.checkPassword()) {
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document.getElementById('encryptedPassword').value = md5(
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document.getElementById('password').value
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);
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login();
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return true;
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}
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return false;
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}
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// 登录函数
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async function login() {
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const username = document.getElementById('username').value;
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const encryptedPassword = document.getElementById('encryptedPassword').value;
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try {
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const response = await fetch('/login', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({ username: username, password: encryptedPassword }),
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credentials: 'include' // 确保请求包含凭据（cookies）
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});
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const data = await response.json();
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if (response.ok) {
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alert('登录成功');
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// 自动跳转到主页
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window.location.href = data.redirect;
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} else {
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document.getElementById('loginError').textContent = data.message;
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}
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} catch (error) {
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alert('数据库错误，请稍后再试');
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}
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}
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// 自动登录函数
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async function autoLogin() {
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const token = localStorage.getItem('token');
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if (token) {
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const response = await fetch('/index', {
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headers: {
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'Authorization': 'Bearer ' + token
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}
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});
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if (response.ok) {
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document.getElementById('content').innerText = '已自动登录';
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} else {
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document.getElementById('content').innerText = '自动登录失败';
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}
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}
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}
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