Nodejs: set up the express service, set up the session and realize the exit operation

const plug_i18next = require('i18next');
const plug_i18nextMiddleware = require('i18next-express-middleware');
const plug_Backend = require('i18next-node-fs-backend');
var plug_express = require('express');
var plug_path = require('path');
var plug_methodOverride = require('method-override');
var plug_session = require('express-session');
var plug_cookieParser = require('cookie-parser');
var plug_multiparty = require('multiparty');
var plug_jade = require('jade');
var plug_favicon = require('serve-favicon');
var child_process = require('child_process');

var plug_errorHandler = require('errorhandler');
var plug_request = require('request');
var plug_httpproxy = require('http-proxy');
var plug_proxy = require('http-proxy-middleware');
var fs = require('fs');
var http = require('http');
var https = require('https');
var app = plug_express();
var jwt = require('jsonwebtoken'); //  Use jwt Signature 

var PORT = 80;
var SSLPORT = 8888;
var TimeOut = 3600;
app.set('port', SSLPORT);

app.use(plug_session({
    /* I could just write .  One  String  String of type , As a server-side generation  session  The signature of the  */
    secret: 'QuotPXt',
    name: 'sQt_KYBGRExdetyhLMN0387650XXD',
    /* Keep it locally cookie A name for   Default connect.sid   You can leave it blank */
    /* Force save  session  Even if it doesn't change ,. The default is  true. It is suggested to set it to  false.*/
    resave: false,
    /* Force uninitialized  session  Storage .  The default value is true  It is suggested to set it to true*/
    saveUninitialized: true,
    cookie: {
        maxAge: 1000 * 30 * 60 /* Expiration time */
    },
    /*secure https Only in this way can we access cookie*/
    // Set the expiration time, such as 30 minute , Just visit the page ,30 Minutes will expire if there is no operation 
    // Force settings on every request  cookie, This will reset  cookie  Expiration time （ Default ：false）
    rolling: true
}));

app.use(plug_cookieParser());

var originalFilename = "";
app.use(plug_express.static(plug_path.join(__dirname, 'static')));

app.use(plug_i18nextMiddleware.handle(plug_i18next));

// Merge g_dictRootFromHeader To root in 
for (var key in js_headjsonhandle.g_dictRootFromHeader) {
    root[key] = js_headjsonhandle.g_dictRootFromHeader[key];
}

for (var key in root) {
    if (key) {
        renderCommon(key)
    }
}

//  Turn on HTTPS service 
function func_startHTTPS() {
    //TODO 
    var privateKey = fs.readFileSync('./static/cert/server.key', 'utf8');
    var certificate = fs.readFileSync('./static/cert/server.crt', 'utf8');
    var credentials = { key: privateKey, cert: certificate };
    var httpsServer = https.createServer(credentials, app);
    httpsServer.listen(app.get('port'), '0.0.0.0', function() {
        console.log('HTTPS Server is running on: https://localhost:%s', app.get('port'));
    });
    httpsServer.on('error', (e) => {
        console.error(e);
    });

    function logout(req, res, next) {
        new Promise((resole, rej) => {
            var res_data = {};
            req.session.destroy(function(err) {
                console.log(err);
            })
            res_data.code = 0;
            res_data.msg = " Quit successfully ";
            resole(res_data);
        }).then((res_data) => {
            if (res_data) {
                return res.json(res_data);
            }
        });
    }
    //404
    app.all('*', function(req, res, next) {
        var key = req.url;
        if (req.path == '/CE/logout') {
            logout(req, res, next);
        } else {
            res.redirect('/404');
        }
        next()
    });
}

//  Login website 
app.get('/', function(req, res, next) {
    let host = req.headers.host;
    host = host.replace(/\:\d+$/, '');
    if (!req.cookies.token || req.cookies.token == '0' || req.cookies.token == 'null') {
        if (req.protocol === 'https') {
            return res.redirect(`/login`);
        } else {
            if (SSLPORT == 443) {
                return res.redirect(307, `https://${host}/login`);
            } else {
                return res.redirect(307, `https://${host}:${SSLPORT}/login`);
            }
        }
    } else {
        if (req.protocol === 'https') {
            return res.redirect(`/sa_sec/main_page`);
        } else {
            if (SSLPORT == 443) {
                return res.redirect(307, `https://${host}/sa_sec/main_page`);
            } else {
                return res.redirect(307, `https://${host}:${SSLPORT}/sa_sec/main_page`);
            }
        }
    }
    next()
});


function func_startHTTP() {
    var httpServer = http.createServer(app);
    httpServer.listen(PORT, '0.0.0.0', function() {
        console.log('HTTP Server is running on: http://localhost:%s', PORT);
    });
}

function startServer() {
    func_startHTTP();
    func_startHTTPS();
}

startServer();