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@@ -1,8 +1,5 @@
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-using System;
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-using System.Collections.Generic;
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-using System.Net;
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+using System.Net;
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using System.Net.Sockets;
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using System.Net.Sockets;
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-using System.Text;
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namespace Masuit.Tools
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namespace Masuit.Tools
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{
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{
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@@ -11,38 +8,37 @@ namespace Masuit.Tools
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/// <summary>
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/// <summary>
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/// 判断IP是否是私有地址
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/// 判断IP是否是私有地址
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/// </summary>
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/// </summary>
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- /// <param name="myIPAddress"></param>
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+ /// <param name="ip"></param>
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/// <returns></returns>
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/// <returns></returns>
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- public static bool IsPrivateIP(this IPAddress myIPAddress)
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+ public static bool IsPrivateIP(this IPAddress ip)
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{
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{
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- if (IPAddress.IsLoopback(myIPAddress)) return true;
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-
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- if (myIPAddress.AddressFamily == AddressFamily.InterNetwork)
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+ if (IPAddress.IsLoopback(ip)) return true;
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+ byte[] bytes = ip.GetAddressBytes();
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+ return ip.AddressFamily switch
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{
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{
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- byte[] ipBytes = myIPAddress.GetAddressBytes();
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-
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- // 10.0.0.0/24
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- if (ipBytes[0] == 10)
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- {
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- return true;
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- }
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- // 169.254.0.0/16
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- if (ipBytes[0] == 169 && ipBytes[1] == 254)
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- {
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- return true;
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- }
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- // 172.16.0.0/16
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- if (ipBytes[0] == 172 && ipBytes[1] == 16)
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- {
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- return true;
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- }
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- // 192.168.0.0/16
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- if (ipBytes[0] == 192 && ipBytes[1] == 168)
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- {
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- return true;
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- }
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- }
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- return false;
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+ AddressFamily.InterNetwork when bytes[0] == 10 => true,
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+ AddressFamily.InterNetwork when bytes[0] == 100 && bytes[1] >= 64 && bytes[1] <= 127 => true,
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+ AddressFamily.InterNetwork when bytes[0] == 169 && bytes[1] == 254 => true,
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+ AddressFamily.InterNetwork when bytes[0] == 172 && bytes[1] == 16 => true,
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+ AddressFamily.InterNetwork when bytes[0] == 192 && bytes[1] == 88 && bytes[2] == 99 => true,
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+ AddressFamily.InterNetwork when bytes[0] == 192 && bytes[1] == 168 => true,
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+ AddressFamily.InterNetwork when bytes[0] == 198 && bytes[1] == 18 => true,
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+ AddressFamily.InterNetwork when bytes[0] == 198 && bytes[1] == 51 && bytes[2] == 100 => true,
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+ AddressFamily.InterNetwork when bytes[0] == 203 && bytes[1] == 0 && bytes[2] == 113 => true,
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+ AddressFamily.InterNetworkV6 when ip.IsIPv6Teredo || ip.IsIPv6LinkLocal || ip.IsIPv6Multicast || ip.IsIPv6SiteLocal => true,
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+ AddressFamily.InterNetworkV6 when ip.ToString().StartsWith("::") => true,
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+ AddressFamily.InterNetworkV6 when ip.ToString().StartsWith("64:ff9b::") => true,
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+ AddressFamily.InterNetworkV6 when ip.ToString().StartsWith("100::") => true,
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+ AddressFamily.InterNetworkV6 when ip.ToString().StartsWith("2001::") => true,
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+ AddressFamily.InterNetworkV6 when ip.ToString().StartsWith("2001:2") => true,
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+ AddressFamily.InterNetworkV6 when ip.ToString().StartsWith("2001:db8:") => true,
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+ AddressFamily.InterNetworkV6 when ip.ToString().StartsWith("2002:") => true,
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+ AddressFamily.InterNetworkV6 when ip.ToString().StartsWith("fc") => true,
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+ AddressFamily.InterNetworkV6 when ip.ToString().StartsWith("fd") => true,
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+ AddressFamily.InterNetworkV6 when ip.ToString().StartsWith("fe") => true,
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+ AddressFamily.InterNetworkV6 when bytes[0] == 255 => true,
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+ _ => false
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+ };
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}
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}
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}
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}
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}
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}
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