NodeJS HttpServer Copied from Example.js

var sys =  require("sys"),
    http = require("http"),
    url = require("url"),
    path = require("path"),
    fs = require("fs");

http.createServer(function(request, response) {
        var uri = url.parse(request.url).pathname;
        var filename = path.join(process.cwd(), uri);
        path.exists(filename, function(exists) {
                if(!exists) {
                    response.sendHeader(404, {"Content-Type": "text/plain"});
                    response.write("404\n");
                    response.close();
                    return;
                }
                
                fs.readFile(filename, "binary", function(err, file) {
                        if(err) {
                            response.sendHeader(500, {"Content-Type": "text/plain"});
                            response.write(err + "\n");
                            response.close();
                            return;
                        }
                        response.sendHeader(200);
                        response.write(file, "binary");
                        response.close();
                        
                    });
            });
    }).listen(8080);