a very simple static file server made by node.js .

simple.js

var http = require('http'),
    url = require('url'),
    path = require('path'),
    fs = require('fs');

var PORT = 8080,
    mimeTypes = {
     "html": "text/html",
     "jpeg": "image/jpeg",
     "jpg": "image/jpeg",
     "png": "image/png",
     "js": "text/javascript",
     "css": "text/css",
     "txt": "text/plain"
};

var server = http.createServer(function(req,res){
    var pathname = __dirname + url.parse(req.url).pathname;
			
    fs.exists(pathname, function(exists){
    	var fileSteam,
    	    mimeType = mimeTypes[path.extname(pathname).split(".")[1]];
    	if(!exists){
    	  res.writeHead(404, {"Content-Type": "text/plain"});
    	  res.write('This requst URL ' + pathname + ' was not found on this server.');
    	  res.end();
          return;
        }   		        
	res.writeHead(200,{"Content-Type": mimeType});	
	fileSteam = fs.createReadStream(pathname);
	fileSteam.pipe(res);    				
    });	
});
server.listen(PORT);
console.log('Server runing at port: ' + PORT + '.');