C# MediaFire Uploader

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Xml;
using System.Text.RegularExpressions;

// ReSharper disable PossibleNullReferenceException
namespace Uploader
{
    class Program
    {
        static void Main(string[] args)
        {
            if (args.Length < 2)
            {
                Console.WriteLine("Proper Usage: Uploader <FolderName> <File1> <File2> ...");
                return;
            }
            var folder = args[0];
            var files = new String[args.Length - 1];
            Array.Copy(args, 1, files, 0, args.Length - 1);

            var web = new CookieWebClient();
            //Must get the ukey by loading the root first
            web.DownloadString("http://www.mediafire.com/");

            /*
             * Now we do a login so we can get session, user, etc..
             * Content Type must be "application/x-www-form-urlencoded"
             */
            web.Headers.Set(HttpRequestHeader.ContentType, "application/x-www-form-urlencoded");
            web.UploadString("http://www.mediafire.com/dynamic/login.php", "POST", String.Format("login_email={0}&login_pass={1}&login_remember=on", "EMAIL ADDRESS", "PASSWORD"));

            /*
             * Need to get the 'session_token', Sadly this is in the javascript that is on the main page.
             * It is a 72-byte long hash of some kind. Lucally, its the only 72-byte long hash on the page,
             * so a simple regex can snag it.
             *
             * Also, we MUST set the user agent, else the javascript won't be sent.
             */
            web.Headers.Set(HttpRequestHeader.UserAgent, "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.120 Safari/535.2");
            var ret = web.DownloadString("http://www.mediafire.com/myfiles.php");
            var reg = Regex.Match(ret, "[0-9a-fA-F]{144}");

            /*
             * Now, we need to create the folder, and get its key.
             */
            ret = web.DownloadString(String.Format("http://www.mediafire.com/api/folder/create.php?foldername={0}&session_token={1}&version=1", folder, reg.Value));
            var xml = new XmlDocument();
            xml.LoadXml(ret);
            var folderKey = xml.SelectSingleNode("/response/upload_key").InnerText;

            var rets = files.Select(file => Upload(web, folderKey, file)).ToList();
            while (rets.Count > 0)
            {
                foreach (var info in rets.ToArray())
                {
                    ret = web.DownloadString(String.Format("http://www.mediafire.com/basicapi/pollupload.php?key={0}&MFULConfig={1}", info[1], info[2]));
                    xml.LoadXml(ret);
                    /*
                    var builder = new StringBuilder();
                    using (var writer = new StringWriter(builder))
                    {
                        using (var xmlWriter = new XmlTextWriter(writer))
                        {
                            xmlWriter.Formatting = Formatting.Indented;
                            xml.Save(xmlWriter);
                        }
                    }
                    Console.WriteLine(builder);
                    */
                    var key = xml.SelectSingleNode("/response/doupload/quickkey").InnerText;
                    if (key.Length <= 0) continue;
                    Console.WriteLine("Download URL {0} http://www.mediafire.com/download.php?{1}", Path.GetFileName(info[0]), key);
                    rets.Remove(info);
                }
            }
            Console.ReadLine();
        }

        private static String[] Upload(CookieWebClient web, String folder, String file)
        {
            var xml = new XmlDocument();
            var keys = new Dictionary<String, String>();
            xml.LoadXml(web.DownloadString("http://www.mediafire.com/basicapi/uploaderconfiguration.php?"));

            keys.Add("user",           xml.SelectSingleNode("/mediafire/config/user").InnerText);
            keys.Add("ukey",           xml.SelectSingleNode("/mediafire/config/ukey").InnerText);
            keys.Add("upload_session", xml.SelectSingleNode("/mediafire/config/upload_session").InnerText);
            keys.Add("trackkey",       xml.SelectSingleNode("/mediafire/config/trackkey").InnerText);
            keys.Add("folderkey",     (folder ?? xml.SelectSingleNode("/mediafire/config/folderkey").InnerText));
            keys.Add("mful_config",    xml.SelectSingleNode("/mediafire/MFULConfig").InnerText);

            String[] query = {
                               "type=basic",
                               "ukey=" + keys["ukey"],
                               "user=" + keys["user"],
                               "uploadkey=" + keys["folderkey"],
                               "filenum=0",
                               "uploader=0",
                               "MFULConfig=" + keys["mful_config"]
                           };
            web.Headers.Set(HttpRequestHeader.UserAgent, "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.120 Safari/535.2");
            var ret = Encoding.ASCII.GetString(web.UploadFile("http://www.mediafire.com/douploadtoapi?" + String.Join("&", query), file));
            xml.LoadXml(ret);
            return new[]{ file, xml.SelectSingleNode("/response/doupload/key").InnerText, keys["mful_config"] };
        }

        public class CookieWebClient : WebClient
        {
            public CookieContainer Cookies = new CookieContainer();

            protected override WebRequest GetWebRequest(Uri address)
            {
                var request = (HttpWebRequest)base.GetWebRequest(address);
                if (request != null)
                {
                    request.CookieContainer = Cookies;
                    request.KeepAlive = true;
                    ServicePointManager.Expect100Continue = false;
                }
                return request;
            }
        }
    }
}