/// <summary>/// 计算gtk32值/// </summary>/// <param name="skey"></param>/// <returns></returns>public static string GetGTK32(string skey){var hash = 5381;var md5Key = "tencentQQVIP123443safde&!%^%1282";var start = hash << 5;var result = string.Empty;for (int i = 0; i < skey.Length; i++){var ascode = CharToASCII(skey.Substring(i, 1));result += (hash << 5) + ascode;hash = ascode;}var str = start + (result + md5Key);return GetMD5(str);}/// <summary>/// MD5加密/// </summary>/// <param name="text"></param>/// <returns></returns>public static string GetMD5(string text){StringBuilder sb = new StringBuilder();using (MD5 md5 = MD5.Create()){byte[] md5Byte = md5.ComputeHash(Encoding.Default.GetBytes(text));for (int i = 0; i < md5Byte.Length; i++){sb.Append(md5Byte[i].ToString("x2"));}}return sb.ToString();}/// <summary>/// /*字符转化为ASCII*//// </summary>/// <param name="character"></param>/// <returns></returns>static int CharToASCII(string character){ASCIIEncoding asciiEncoding = new ASCIIEncoding();int intAsciiCode = asciiEncoding.GetBytes(character)[0];return intAsciiCode;}

        /// <summary>/// 解析cookie,取到Skey/// </summary>/// <param name="cookies">腾讯QQ cookie</param>/// <returns></returns>public static string GetSkey(string cookies){#region 字符串分割解析//var keyStr = "skey=";//var index = cookies.IndexOf(keyStr) + keyStr.Length;//var skey = cookies.Remove(0, index);//if (skey.Contains(";") && skey.Length > 10)//{//    var laindex = cookies.IndexOf(";");//    skey = skey.Remove(10);//} #endregionvar skey = Regex.Match(cookies, "skey=(.){10}?").Value.Remove(0, 5);if (skey.Length > 10){skey.Remove(10);}return skey;}/// <summary>/// 解析cookie,取到p_skey/// </summary>/// <param name="cookies">腾讯QQ cookie</param>/// <returns></returns>public static string Getp_skey(string cookies){return Regex.Match(cookies, "p_skey=(.)+?_").Value.Remove(0, 7);}/// <summary>/// 算出g_tk/// </summary>/// <param name="sKey">cookie中的sKey值</param>/// <returns></returns>public static string GetGTK(string sKey){var hash = 5381;for (int i = 0, len = sKey.Length; i < len; ++i){hash += (hash << 5) + sKey[i];}return (hash & 0x7fffffff).ToString();}