var http = require('http');

http.get("http://www.youtube.com/get_video_info?video_id=F_CvDj8pLo0", function(res) {
  console.log("Got response: " + res.statusCode);
  var chunks = [];
  res.on('data', function(chunk){chunks.push(chunk)} );
  res.on('end', function(){ parseVideoInfo(Buffer.concat(chunks).toString()) } )
}).on('error', function(e) {
  console.log("Got error: " + e.message);
});

function parseVideoInfo(videoInfo) {
	var rxUrlMap = /url_encoded_fmt_stream_map=([\]\[!"#$%'()*+,.\/:;<=>?@\^_`{|}~-\w]*)/;
	urlmap = unescape(videoInfo.match(rxUrlMap)[1]);
	//console.log(urlmap);
	var rxUrl= /url=([\]\[!"#$%'()*+,.\/:;<=>?@\^_`{|}~-\w]*)/;
	url = unescape(urlmap.match(rxUrl)[1])
	console.log(url);
}