Titanium commonjs module for Youtube

Usage.js

var Youtube = require('Youtube');
var youtube = new Youtube();
var youtubeId = 'HQ1z0Zzqg5U';

youtube.h264videosWithYoutubeURL(youtubeId, function(e) {
	videoPlayer.url = e.medium;
}, function(e) {
	alert(JSON.stringify(e));
});

Youtube.js

function Youtube() {
	var self = {
		h264videosWithYoutubeURL: function(_youtubeId, _callbackOk, _callbackError) {
		        var youtubeInfoUrl = 'http://www.youtube.com/get_video_info?video_id=' + _youtubeId;
		        var request = Titanium.Network.createHTTPClient({ timeout : 10000  /* in milliseconds */});
		      	        
		        request.open("GET", youtubeInfoUrl);
		        request.onerror = function(_event){
		            if (_callbackError)
		                _callbackError({status: this.status, error:_event.error});
		        };  
		        request.onload = function(_event){
		            var qualities = {};
		            var response = this.responseText;
		            var args = getURLArgs(response);
		            
		            if (!args.hasOwnProperty('url_encoded_fmt_stream_map'))
		            {
		                if (_callbackError)
		                    _callbackError(response);
		            }
		            else
		            {
		                var fmtstring = args['url_encoded_fmt_stream_map'];
		                var fmtarray = fmtstring.split(',');
		                for(var i=0,j=fmtarray.length; i<j; i++){
		                    var args2 = getURLArgs(fmtarray[i]);
		                    var type = decodeURIComponent(args2['type']);
		                    if (type.indexOf('mp4') >= 0)
		                    {
		                        var url = decodeURIComponent(args2['url']);
		                        var quality = decodeURIComponent(args2['quality']);
		                        qualities[quality] = url;
		 
		                    }
		 
		                }
		                if (_callbackOk)
		                    _callbackOk(qualities);
		                }
		        }
		        request.send();
		}
	}
	
	function getURLArgs(_string) {
		    var args = {};
		    var pairs = _string.split("&");
		    for(var i = 0; i < pairs.length; i++) {
		        var pos = pairs[i].indexOf('=');
		        if (pos == -1) continue;
		        var argname = pairs[i].substring(0,pos);
		        var value = pairs[i].substring(pos+1);
		        args[argname] = unescape(value);
		    }
		    return args;
		}
	
	return self;
}

module.exports = Youtube;

Usage:

var youtube = new Youtube();

youtube.h264videosWithYoutubeURL(textField.value, function(e) {
videoPlayer.url = e.medium;
}, function(e) {
alert(JSON.stringify(e));
});