/**
* serve file from local web server
* @module serveFile
*/
const url = require('url')
const fs = require('fs')
const path = require('path')
/**
* simple function to serve file
*
* @param {object} req - HTTP request
* @param {object} res - HTTP response
* @returns null
*/
module.exports = (req, res) => {
if (!req) return null
const parsedUrl = url.parse(req.url)
let pathname = `.${parsedUrl.pathname}`
const ext = path.parse(pathname).ext
const map = {
'.ico': 'image/x-icon',
'.html': 'text/html',
'.js': 'text/javascript',
'.json': 'application/json',
'.css': 'text/css',
'.png': 'image/png',
'.jpg': 'image/jpeg',
'.wav': 'audio/wav',
'.mp3': 'audio/mpeg',
'.svg': 'image/svg+xml',
'.pdf': 'application/pdf',
'.doc': 'application/msword'
}
if (!fs.existsSync(pathname)) {
res.statusCode = 404
res.end(`File ${pathname} not found!`)
return
}
if (fs.statSync(pathname).isDirectory()) pathname += '/index.html' + ext
fs.readFile(pathname, function(err, data) {
if (err) {
res.statusCode = 500
res.end(`Error getting the file: ${err}.`)
} else {
res.setHeader('Content-type', map[ext] || 'text/html')
res.end(data)
}
})
}