ASP.NET获取客户端的相关信息

/// <summary>
        /// 获取远程浏览器端 IP 地址
        /// </summary>
        /// <returns>返回 IPv4 地址</returns>
        public static string GetIPAddress()
        {
            string userHostAddress = HttpContext.Current.Request.UserHostAddress;
            if (userHostAddress.IsNullOrEmpty())
            {
                userHostAddress = HttpContext.Current.Request.ServerVariables[\”REMOTE_ADDR\”];
            }
            return userHostAddress;
        }

        /// <summary>
        /// 得到用户浏览器类型
        /// </summary>
        /// <returns></returns>
        public static string GetBrowse()
        {
            return System.Web.HttpContext.Current.Request.Browser.Type;
        }

        /// <summary>
        /// 获取浏览器端操作系统名称
        /// </summary>
        /// <returns></returns>
        public static string GetOSName()
        {
            string osVersion = System.Web.HttpContext.Current.Request.Browser.Platform;
            string userAgent = System.Web.HttpContext.Current.Request.UserAgent;

            if (userAgent.Contains(\”NT 10\”))
            {
                osVersion = \”Windows10\”;
            }
            else if (userAgent.Contains(\”NT 6.3\”))
            {
                osVersion = \”Windows8.1\”;
            }
            else if (userAgent.Contains(\”NT 6.2\”))
            {
                osVersion = \”Windows8\”;
            }
            else if (userAgent.Contains(\”NT 6.1\”))
            {
                osVersion = \”Windows7\”;
            }
            else if (userAgent.Contains(\”NT 6.0\”))
            {
                osVersion = \”WindowsVista\”;
            }
            else if (userAgent.Contains(\”NT 5.2\”))
            {
                osVersion = \”WindowsServer2003\”;
            }
            else if (userAgent.Contains(\”NT 5.1\”))
            {
                osVersion = \”WindowsXP\”;
            }
            else if (userAgent.Contains(\”NT 5\”))
            {
                osVersion = \”Windows2000\”;
            }
            else if (userAgent.Contains(\”NT 4\”))
            {
                osVersion = \”WindowsNT4.0\”;
            }
            else if (userAgent.Contains(\”Me\”))
            {
                osVersion = \”WindowsMe\”;
            }
            else if (userAgent.Contains(\”98\”))
            {
                osVersion = \”Windows98\”;
            }
            else if (userAgent.Contains(\”95\”))
            {
                osVersion = \”Windows95\”;
            }
            else if (userAgent.Contains(\”Mac\”))
            {
                osVersion = \”Mac\”;
            }
            else if (userAgent.Contains(\”Unix\”))
            {
                osVersion = \”UNIX\”;
            }
            else if (userAgent.Contains(\”Linux\”))
            {
                osVersion = \”Linux\”;
            }
            else if (userAgent.Contains(\”SunOS\”))
            {
                osVersion = \”SunOS\”;
            }
            return osVersion;
        }