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 }