Node http static server with SSL

node-static-https-server.js

const fs = require("fs"),
  url = require("url"),
  path = require("path"),
  https = require('https');

var server = https.createServer({
    key: fs.readFileSync('server.key'),
    cert: fs.readFileSync('server.crt')
});

var handler = function(request, response) {
 
  var uri = url.parse(request.url).pathname
    , filename = path.join(process.cwd(), uri);
  
  fs.exists(filename, function(exists) {
    if(!exists) {
      response.writeHead(404, {"Content-Type": "text/plain"});
      response.write("404 Not Found\n");
      response.end();
      return;
    }
 
    if (fs.statSync(filename).isDirectory()) filename += '/index.html';
 
    fs.readFile(filename, "binary", function(err, file) {
      if(err) {        
        response.writeHead(500, {"Content-Type": "text/plain"});
        response.write(err + "\n");
        response.end();
        return;
      }
 
      response.writeHead(200);
      response.write(file, "binary");
      response.end();
    });
  });
}

server.addListener("request", handler);
server.listen(5005);