获取客户端浏览器，ip地址，操作系统信息代码,Asp.Net代码库,德仔网

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【Asp.Net】获取客户端浏览器，ip地址，操作系统信息
作者:lybwwp / 发布于2014/1/26/ 616
获取客户端浏览器，ip地址，操作系统信息
public class CheckIP
  {
    #region 获取浏览器版本号

    /// <summary>
    /// 获取浏览器版本号
    /// </summary>
    /// <returns></returns>
    public static string GetBrowser()
    {
      HttpBrowserCapabilities bc = HttpContext.Current.Request.Browser;
      return bc.Browser + bc.Version;
    }

    #endregion

    #region 获取操作系统版本号

    /// <summary>
    /// 获取操作系统版本号
    /// </summary>
    /// <returns></returns>
    public static string GetOSVersion()
    {
      //UserAgent
      var userAgent = HttpContext.Current.Request.ServerVariables["HTTP_USER_AGENT"];

      var osVersion = "未知";

      if (userAgent.Contains("NT 6.1"))
      {
        osVersion = "Windows 7";
      }
      else if (userAgent.Contains("NT 6.0"))
      {
        osVersion = "Windows Vista/Server 2008";
      }
      else if (userAgent.Contains("NT 5.2"))
      {
        osVersion = "Windows Server 2003";
      }
      else if (userAgent.Contains("NT 5.1"))
      {
        osVersion = "Windows XP";
      }
      else if (userAgent.Contains("NT 5"))
      {
        osVersion = "Windows 2000";
      }
      else if (userAgent.Contains("NT 4"))
      {
        osVersion = "Windows NT4";
      }
      else if (userAgent.Contains("Me"))
      {
        osVersion = "Windows Me";
      }
      else if (userAgent.Contains("98"))
      {
        osVersion = "Windows 98";
      }
      else if (userAgent.Contains("95"))
      {
        osVersion = "Windows 95";
      }
      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;
    }
    #endregion

    #region 获取客户端IP地址

    /// <summary>
    /// 获取客户端IP地址
    /// </summary>
    /// <returns></returns>
    public static string GetIP()
    {
      string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
      if (string.IsNullOrEmpty(result))
      {
        result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
      }
      if (string.IsNullOrEmpty(result))
      {
        result = HttpContext.Current.Request.UserHostAddress;
      }
      if (string.IsNullOrEmpty(result))
      {
        return "0.0.0.0";
      }
      return result;
    }

    #endregion

    #region 取客户端真实IP

    /// <summary> 
    /// 取得客户端真实IP。如果有代理则取第一个非内网地址 
    /// </summary> 
    public static string GetIPAddress
    {
      get
      {
        var result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
        if (!string.IsNullOrEmpty(result))
        {
          //可能有代理 
          if (result.IndexOf(".") == -1)    //没有&ldquo;.&rdquo;肯定是非IPv4格式 
            result = null;
          else
          {
            if (result.IndexOf(",") != -1)
            {
              //有&ldquo;,&rdquo;，估计多个代理。取第一个不是内网的IP。 
              result = result.Replace(" ", "").Replace("'", "");
              string[] temparyip = result.Split(",;".ToCharArray());
              for (int i = 0; i < temparyip.Length; i++)
              {
                if (IsIPAddress(temparyip[i])
                    && temparyip[i].Substring(0, 3) != "10."
                    && temparyip[i].Substring(0, 7) != "192.168"
                    && temparyip[i].Substring(0, 7) != "172.16.")
                {
                  return temparyip[i];    //找到不是内网的地址 
                }
              }
            }
            else if (IsIPAddress(result)) //代理即是IP格式 
              return result;
            else
              result = null;    //代理中的内容 非IP，取IP 
          }

        }

        string IpAddress = (HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null && HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != String.Empty) ? HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] : HttpContext.Current.Request.ServerVariables["HTTP_X_REAL_IP"];

        if (string.IsNullOrEmpty(result))
          result = HttpContext.Current.Request.ServerVariables["HTTP_X_REAL_IP"];

        if (string.IsNullOrEmpty(result))
          result = HttpContext.Current.Request.UserHostAddress;

        return result;
      }
    }

    #endregion

    #region 判断是否是IP格式

    /// <summary>
    /// 判断是否是IP地址格式 0.0.0.0
    /// </summary>
    /// <param name="str1">待判断的IP地址</param>
    /// <returns>true or false</returns>
    public static bool IsIPAddress(string str1)
    {
      if (string.IsNullOrEmpty(str1) || str1.Length < 7 || str1.Length > 15) return false;

      const string regFormat = @"^d{1,3}[.]d{1,3}[.]d{1,3}[.]d{1,3}$";

      var regex = new Regex(regFormat, RegexOptions.IgnoreCase);
      return regex.IsMatch(str1);
    }

    #endregion

    #region 获取公网IP
    /// <summary>
    /// 获取公网IP
    /// </summary>
    /// <returns></returns>
    public static string GetNetIP()
    {
      string tempIP = "";
      try
      {
        System.Net.WebRequest wr = System.Net.WebRequest.Create("http://city.ip138.com/ip2city.asp");
        System.IO.Stream s = wr.GetResponse().GetResponseStream();
        System.IO.StreamReader sr = new System.IO.StreamReader(s, System.Text.Encoding.GetEncoding("gb2312"));
        string all = sr.ReadToEnd(); //读取网站的数据

        int start = all.IndexOf("[") + 1;
        int end = all.IndexOf("]", start);
        tempIP = all.Substring(start, end - start);
        sr.Close();
        s.Close();
      }
      catch
      {
        if (System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName()).AddressList.Length > 1)
          tempIP = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName()).AddressList[1].ToString();
        if (string.IsNullOrEmpty(tempIP))
          return GetIP();
      }
      return tempIP;
    }
    #endregion
  }
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