Facebook-Events-iCal-Converter/lib/index.js

const express = require('express')
const bodyParser = require('body-parser')
const path = require('path')
const favicon = require('serve-favicon')
const rateLimit = require('express-rate-limit')

const {
  error,
  notFound,
  download,
  downloadHTML,
} = require('./routes')

const {
  genericErrorHandler,
  checkURLParameter,
  forceSecure,
  createRouteLogger,
  createErrorLogger,
} = require('./middlewares')
const { createAppLogger } = require('./log-utils')

const port = process.env.PORT
const certEndpoint = process.env.CERT_ENDPOINT || ''
const certSecret = process.env.CERT_SECRET || ''
const isDevelopment = process.env.NODE_ENV === 'development'
const enforceHTTPS = Boolean(process.env.ENFORCE_HTTPS)

const app = express()
const appLogger = createAppLogger({ dev: isDevelopment })
const limiter = rateLimit({
  windowMs: 60 * 1000,
  max: 10,
})
const pkg = require('../package.json')
const version = pkg.version || ''

// Force app to always redirect to HTTPS
// use when you can't configure web server
if (enforceHTTPS) {
  app.use(forceSecure)
}

// Server logs
// You can alternatively enable these to mimic logs created
// by your web server
if (isDevelopment) {
  app.use(createRouteLogger({ dev: isDevelopment }))
}

app.set('view engine', 'ejs')
app.set('views', path.join(__dirname, 'views'))
app.set('trust proxy', 1)

app.use(express.static(path.join(__dirname, '..', 'dist')))
//app.use(favicon(path.join(__dirname, '..', 'dist', 'favicon.ico')))
app.use(bodyParser.urlencoded({ extended: true }))

const indexFile = path.join(__dirname, '..', 'dist', 'index.html')

if (certEndpoint) {
  app.get(`/${certEndpoint}`, (req, res) => {
    res.status(200).send(certSecret)
  })
}

app.get('/error', error)

app.get('/about', (req, res) => {
  res.render('about', { version })
})

// NOTE: Capture all unkown URLs
app.get('*', notFound)

app.use('/download/html', limiter)
app.use('/download/html', checkURLParameter)
app.post('/download/html', downloadHTML(appLogger))

app.use('/download', limiter)
app.use('/download', checkURLParameter)
app.post('/download', download)

app.use(createErrorLogger({ dev: isDevelopment }))
app.use(genericErrorHandler)

app.listen(port)