WindowsFormsApplication1.Form1.waitForLogin C# (CSharp) Méthode

        private String waitForLogin()
        {
            var url = String.Format("https://login.weixin.qq.com/cgi-bin/mmwebwx-bin/login?tip={0}&uuid={1}&_={2}", tip, uuid, get_timestamp());
            Console.WriteLine(url);
            var http = WebRequest.Create(url) as HttpWebRequest;
            http.CookieContainer = cookieContainer;
            var tuple = getResponseText(http, new UTF8Encoding(true, true));
            var text = tuple.Item1;
            Console.WriteLine(text);
            var regex = @"window.code=(\d+);";
            var r = new Regex(regex, RegexOptions.None);
            Match m = r.Match(text);
            var code = m.Groups[1].Value;

            var response = (HttpWebResponse)tuple.Item2;
            foreach (Cookie cookie in response.Cookies)
            {
                Console.WriteLine(String.Format("Cookie_in_wait_login: {0}, {1}", cookie.Name,cookie.Value));
            }
            
            if(code == "201")
            {
                updateUITextLine(info_display, "扫描成功,请在手机上点击确认以登录", Environment.NewLine, Color.Black);
                tip = 0;
            } else if(code == "200")
            {

                updateUITextLine(info_display, "正在登录", Environment.NewLine, Color.Black);
                regex = @"window.redirect_uri=""(\S+?)"";";
                r = new Regex(regex, RegexOptions.None);
                m = r.Match(text);
                redirect_url = m.Groups[1] + "&fun=new";
                for (int i = redirect_url.Length - 1; i >= 0; i--)
                {
                    if(redirect_url[i] == '/')
                    {
                        base_url = redirect_url.Substring(0, i + 1);
                        break;
                    }
                }           
            } else if(code == "408")
            {
                // do nothing
            }
            return code;
        }