Kakise/Kaki-Static

const express = require('express');
const path = require('path');
const logger = require('morgan');
const bodyParser = require('body-parser');
const compression = require('compression');
const helmet = require('helmet');
const favicon = require('serve-favicon');
const index = require('./routes/index.js');
const article = require('./routes/article.js');
const page = require('./routes/page.js');
const tags = require('./routes/tags.js');
const preview = require('./routes/preview.js');
const minify = require('express-minify');
const enforce = require('express-sslify');
const client = require('./services/contentfulClient.js').client;
const throng = require('throng');
const nginx = require('./config/nginx.conf.js');
const fs = require('fs');

// Useful vars
const port = 3000;
const WORKERS = process.env.WORKERS || 1;

// Creates the nginx config
if (!process.env.TRAVIS) {
    client.getEntries({
        content_type: 'reverseProxy'
    }).then(list => {
        nginx.createConfigFile(list.items); // Sync func
        let startServ = new Promise((resolve, reject) => {
            throng({
                workers: WORKERS,
                lifetime: 60000,
                start: startFn
            });
            resolve();
        });
        startServ.then( () => {
        });
    }).catch(error => {
        console.log(error.message);
    });
} else {
    throng({
        workers: WORKERS,
        lifetime: 60000,
        start: startFn
    })
}

const app = express();

app.use(enforce.HTTPS({
    trustProtoHeader: true
}));

app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');
app.set('view cache', true);
app.set('port', (process.env.PORT || 5000));
app.use(favicon(path.join(__dirname, 'public/favicon.ico')));
app.use(helmet()); // protect = well known vulnerabilities
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
    extended: false
}));
app.use(compression());
app.use(minify());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', index);
app.use('/article', article);
app.use('/page', page);
app.use('/tag', tags);
app.use('/preview', preview);

// catch 404 and forward to error handler
app.use((req, res, next) => {
    const err = new Error('Not Found');
    err.status = 404;
    next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (process.env.NODE_ENV === 'development') {
    app.use(logger('dev'));
    app.use((err, req, res, next) => {
        res.status(err.status || 500);
        res.render('error', {
            message: err.message,
            error: err,
            version: require("./package.json").version

        });
    });
}

// production error handler
// no stacktraces leaked to user
if (process.env.NODE_ENV === 'production') {
    app.use(logger('dev'));
    app.use((err, req, res, next) => {
        res.status(err.status || 500);
        res.render('error', {
            message: err.message,
            error: {},
            version: require("./package.json").version
        });
    });
}
console.log('Node app is running on port', port);

function startFn(id) {
    app.listen(port, () => {
        console.log('[SERVER] Worker: ', id, ' started');
        fs.openSync('/tmp/app-initialized', 'w');
    });
}

module.exports = app;