website-test.js

var sys = require("sys"),
    http = require("http"),
    growl = require("./node-growl/lib/growl"),
    child_process = require("child_process");

function createClient() {
  var i = http.createClient(80, website);

  // Handle a connection error.
  // Thanks to http://rentzsch.tumblr.com/post/664884799/node-js-handling-refused-http-client-connections.
  i.addListener('error', function(connectionException) {
    if (connectionException.errno === process.ECONNREFUSED) {
      failure('Come on, fhqwhgads.');
    
      // Reset client.
      client = createClient();
    }
    else {
      sys.log(connectionException);
    }
  });
  
  return i;
}

function connect() {
  var request = client.request('GET', '/', {'Host': website});
  
  // Handle a request when we got some sort of response from the server.
  request.addListener('response', function(response){
    
    // We got a good kind of response!
    if (response.statusCode == 200 || response.statusCode == 301 || response.statusCode == 302) {
      success('The system is up.');
    }
    
    // Something's up.
    else {
      failure('The system is down.');
    }
  });
  
  request.end();
}

function success(message) {
  growl.notify(message);
  sys.puts(message);
  
  clearInterval(requestInterval);
  // Use Darwin / OS X's open command to open a web browser to view said site.
  child_process.exec('open http://' + website, function(error, stdout, stdin) {
    // Quit!
    process.exit(error);
  });
}

function failure(message) {
  growl.notify(message);
  sys.puts(message);
}

var website = '127.0.0.1';
var client = createClient();
var requestInterval = setInterval(connect, '5000');