asp.net 获取客户端浏览器，ip地址，操作系统信息

  1  public class CheckIP
  2     {
  3         #region 获取浏览器版本号
  4 
  5         /// <summary>
  6         /// 获取浏览器版本号
  7         /// </summary>
  8         /// <returns></returns>
  9         public static string GetBrowser()
 10         {
 11             HttpBrowserCapabilities bc = HttpContext.Current.Request.Browser;
 12             return bc.Browser + bc.Version;
 13         }
 14 
 15         #endregion
 16 
 17         #region 获取操作系统版本号
 18 
 19         /// <summary>
 20         /// 获取操作系统版本号
 21         /// </summary>
 22         /// <returns></returns>
 23         public static string GetOSVersion()
 24         {
 25             //UserAgent 
 26             var userAgent = HttpContext.Current.Request.ServerVariables["HTTP_USER_AGENT"];
 27 
 28             var osVersion = "未知";
 29 
 30             if (userAgent.Contains("NT 6.1"))
 31             {
 32                 osVersion = "Windows 7";
 33             }
 34             else if (userAgent.Contains("NT 6.0"))
 35             {
 36                 osVersion = "Windows Vista/Server 2008";
 37             }
 38             else if (userAgent.Contains("NT 5.2"))
 39             {
 40                 osVersion = "Windows Server 2003";
 41             }
 42             else if (userAgent.Contains("NT 5.1"))
 43             {
 44                 osVersion = "Windows XP";
 45             }
 46             else if (userAgent.Contains("NT 5"))
 47             {
 48                 osVersion = "Windows 2000";
 49             }
 50             else if (userAgent.Contains("NT 4"))
 51             {
 52                 osVersion = "Windows NT4";
 53             }
 54             else if (userAgent.Contains("Me"))
 55             {
 56                 osVersion = "Windows Me";
 57             }
 58             else if (userAgent.Contains("98"))
 59             {
 60                 osVersion = "Windows 98";
 61             }
 62             else if (userAgent.Contains("95"))
 63             {
 64                 osVersion = "Windows 95";
 65             }
 66             else if (userAgent.Contains("Mac"))
 67             {
 68                 osVersion = "Mac";
 69             }
 70             else if (userAgent.Contains("Unix"))
 71             {
 72                 osVersion = "UNIX";
 73             }
 74             else if (userAgent.Contains("Linux"))
 75             {
 76                 osVersion = "Linux";
 77             }
 78             else if (userAgent.Contains("SunOS"))
 79             {
 80                 osVersion = "SunOS";
 81             }
 82             return osVersion;
 83         }
 84         #endregion
 85 
 86         #region 获取客户端IP地址
 87 
 88         /// <summary>
 89         /// 获取客户端IP地址
 90         /// </summary>
 91         /// <returns></returns>
 92         public static string GetIP()
 93         {
 94             string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
 95             if (string.IsNullOrEmpty(result))
 96             {
 97                 result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
 98             }
 99             if (string.IsNullOrEmpty(result))
100             {
101                 result = HttpContext.Current.Request.UserHostAddress;
102             }
103             if (string.IsNullOrEmpty(result))
104             {
105                 return "0.0.0.0";
106             }
107             return result;
108         }
109 
110         #endregion
111 
112         #region 取客户端真实IP
113 
114         ///  <summary>  
115         ///  取得客户端真实IP。如果有代理则取第一个非内网地址  
116         ///  </summary>  
117         public static string GetIPAddress
118         {
119             get
120             {
121                 var result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
122                 if (!string.IsNullOrEmpty(result))
123                 {
124                     //可能有代理  
125                     if (result.IndexOf(".") == -1)        //没有“.”肯定是非IPv4格式  
126                         result = null;
127                     else
128                     {
129                         if (result.IndexOf(",") != -1)
130                         {
131                             //有“,”，估计多个代理。取第一个不是内网的IP。  
132                             result = result.Replace("  ", "").Replace("'", "");
133                             string[] temparyip = result.Split(",;".ToCharArray());
134                             for (int i = 0; i < temparyip.Length; i++)
135                             {
136                                 if (IsIPAddress(temparyip[i])
137                                         && temparyip[i].Substring(0, 3) != "10."
138                                         && temparyip[i].Substring(0, 7) != "192.168"
139                                         && temparyip[i].Substring(0, 7) != "172.16.")
140                                 {
141                                     return temparyip[i];        //找到不是内网的地址  
142                                 }
143                             }
144                         }
145                         else if (IsIPAddress(result))  //代理即是IP格式  
146                             return result;
147                         else
148                             result = null;        //代理中的内容  非IP，取IP  
149                     }
150 
151                 }
152 
153                 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"];
154 
155                 if (string.IsNullOrEmpty(result))
156                     result = HttpContext.Current.Request.ServerVariables["HTTP_X_REAL_IP"];
157 
158                 if (string.IsNullOrEmpty(result))
159                     result = HttpContext.Current.Request.UserHostAddress;
160 
161                 return result;
162             }
163         }
164 
165         #endregion
166 
167         #region  判断是否是IP格式
168 
169         ///  <summary>
170         ///  判断是否是IP地址格式  0.0.0.0
171         ///  </summary>
172         ///  <param  name="str1">待判断的IP地址</param>
173         ///  <returns>true  or  false</returns>
174         public static bool IsIPAddress(string str1)
175         {
176             if (string.IsNullOrEmpty(str1) || str1.Length < 7 || str1.Length > 15) return false;
177 
178             const string regFormat = @"^d{1,3}[.]d{1,3}[.]d{1,3}[.]d{1,3}$";
179 
180             var regex = new Regex(regFormat, RegexOptions.IgnoreCase);
181             return regex.IsMatch(str1);
182         }
183 
184         #endregion
185 
186         #region 获取公网IP
187         /// <summary>
188         /// 获取公网IP
189         /// </summary>
190         /// <returns></returns>
191         public static string GetNetIP()
192         {
193             string tempIP = "";
194             try
195             {
196                 System.Net.WebRequest wr = System.Net.WebRequest.Create("http://city.ip138.com/ip2city.asp");
197                 System.IO.Stream s = wr.GetResponse().GetResponseStream();
198                 System.IO.StreamReader sr = new System.IO.StreamReader(s, System.Text.Encoding.GetEncoding("gb2312"));
199                 string all = sr.ReadToEnd(); //读取网站的数据
200 
201                 int start = all.IndexOf("[") + 1;
202                 int end = all.IndexOf("]", start);
203                 tempIP = all.Substring(start, end - start);
204                 sr.Close();
205                 s.Close();
206             }
207             catch
208             {
209                 if (System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName()).AddressList.Length > 1)
210                     tempIP = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName()).AddressList[1].ToString();
211                 if (string.IsNullOrEmpty(tempIP))
212                     return GetIP();
213             }
214             return tempIP;
215         }
216         #endregion
217     }