File receiver

server.js

var http = require("http");
var fs = require("fs");

var stat = fs.statSync("./index.html");

var server = http.createServer(function(req, res) {
	switch(req.url) {
		case "/": {
			res.writeHead(200, {
				'content-type': 'text/html',
				'content-length': stat.size
			});

			var reading = fs.createReadStream("./index.html");
			reading.pipe(res);
			return;
		}
		case "/form": {
			var writing = fs.createWriteStream("./file");
			var shouldRead = parseInt(req.headers['content-length']);

			req.on('readable', function() {
	  			var chunk;
				var buffer = [];

				while (shouldRead > 0 && null !== (chunk = req.read(shouldRead))) {
					shouldRead-= chunk.length;
					buffer.push(chunk);
					console.log('is buffer', Buffer.isBuffer(chunk));
			  	}

				var result = Buffer.concat(buffer);
				
				writing.write(result, function() {
					writing.end();
					res.writeHead(200);
					res.end();
				});
			});

			break;
		}
		default: {
			console.log('405', req.url);
			res.writeHead(405);
			res.end();
		}
	}	
});

server.listen(8081, '127.0.0.1');