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'use strict';
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var express = require('express');
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var timeout = require('connect-timeout');
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var path = require('path');
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var cookieParser = require('cookie-parser');
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var bodyParser = require('body-parser');
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var AV = require('leanengine');
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// 加载云函数定义,你可以将云函数拆分到多个文件方便管理,但需要在主文件中加载它们
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require('./cloud');
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var app = express();
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// 设置模板引擎
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app.set('views', path.join(__dirname, 'views'));
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app.set('view engine', 'ejs');
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app.use(express.static('public'));
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// 设置默认超时时间
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app.use(timeout('15s'));
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// 加载云引擎中间件
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app.use(AV.express());
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app.enable('trust proxy');
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// 需要重定向到 HTTPS 可去除下一行的注释。
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app.use(AV.Cloud.HttpsRedirect());
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app.use(bodyParser.json());
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app.use(bodyParser.urlencoded({ extended: false }));
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app.use(cookieParser());
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app.use(AV.Cloud.CookieSession({ secret: 'my secret', maxAge: 3600000, fetchUser: true }));
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app.get('/', function(req, res) {
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if (req.currentUser) {
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res.redirect('/comments');
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} else {
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res.render('index');
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}
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});
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// 可以将一类的路由单独保存在一个文件中
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app.use('/comments', require('./routes/comments'));
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app.use('/sign-up', require('./routes/sign-up'));
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// 处理登录请求(可能来自登录界面中的表单)
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app.post('/login', function (req, res) {
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AV.User.logIn(req.body.username, req.body.password).then(function (user) {
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let adminMail = process.env.BLOGGER_EMAIL || process.env.SMTP_USER;
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if (user.get('email') === adminMail) {
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res.saveCurrentUser(user); // 保存当前用户到 Cookie
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res.redirect('/comments');
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}
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else {
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res.redirect('/');
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}
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}, function (error) {
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//登录失败,跳转到登录页面
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res.redirect('/');
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});
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});
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// 登出账号
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app.get('/logout', function(req, res) {
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req.currentUser.logOut();
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res.clearCurrentUser(); // 从 Cookie 中删除用户
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res.redirect('/');
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});
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app.use(function(req, res, next) {
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// 如果任何一个路由都没有返回响应,则抛出一个 404 异常给后续的异常处理器
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if (!res.headersSent) {
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var err = new Error('Not Found');
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err.status = 404;
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next(err);
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}
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});
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// error handlers
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app.use(function(err, req, res, next) {
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if (req.timedout && req.headers.upgrade === 'websocket') {
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// 忽略 websocket 的超时
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return;
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}
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var statusCode = err.status || 500;
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if (statusCode === 500) {
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console.error(err.stack || err);
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}
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if (req.timedout) {
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console.error('请求超时: url=%s, timeout=%d, 请确认方法执行耗时很长,或没有正确的 response 回调。', req.originalUrl, err.timeout);
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}
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res.status(statusCode);
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// 默认不输出异常详情
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var error = {};
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if (app.get('env') === 'development') {
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// 如果是开发环境,则将异常堆栈输出到页面,方便开发调试
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error = err;
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}
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res.render('error', {
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message: err.message,
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error: error
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});
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});
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app.locals.dateFormat = function (date) {
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var vDay = padWithZeros(date.getDate(), 2);
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var vMonth = padWithZeros(date.getMonth() + 1, 2);
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var vYear = padWithZeros(date.getFullYear(), 2);
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var vHour = padWithZeros(date.getHours(), 2);
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var vMinute = padWithZeros(date.getMinutes(), 2);
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var vSecond = padWithZeros(date.getSeconds(), 2);
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// return `${vYear}-${vMonth}-${vDay}`;
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return `${vYear}-${vMonth}-${vDay} ${vHour}:${vMinute}:${vSecond}`;
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};
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const padWithZeros = (vNumber, width) => {
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var numAsString = vNumber.toString();
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while (numAsString.length < width) {
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numAsString = '0' + numAsString;
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}
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return numAsString;
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};
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module.exports = app;
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