51 lines
1.5 KiB
C#
51 lines
1.5 KiB
C#
using FastGithub.Configuration;
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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.NetworkInformation;
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using System.Net.Sockets;
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namespace FastGithub.HttpServer
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{
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/// <summary>
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/// https反向代理端口
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/// </summary>
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static class HttpsReverseProxyPort
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{
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/// <summary>
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/// 获取端口值
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/// </summary>
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public static int Value { get; } = OperatingSystem.IsWindows() ? 443 : GetAvailableTcpPort(AddressFamily.InterNetwork);
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/// <summary>
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/// 获取可用的随机Tcp端口
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/// </summary>
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/// <param name="addressFamily"></param>
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/// <param name="min">最小值</param>
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/// <returns></returns>
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private static int GetAvailableTcpPort(AddressFamily addressFamily, int min = 12345)
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{
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var hashSet = new HashSet<int>();
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var tcpListeners = IPGlobalProperties.GetIPGlobalProperties().GetActiveTcpListeners();
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foreach (var endpoint in tcpListeners)
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{
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if (endpoint.AddressFamily == addressFamily)
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{
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hashSet.Add(endpoint.Port);
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}
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}
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for (var port = min; port < IPEndPoint.MaxPort; port++)
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{
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if (hashSet.Contains(port) == false)
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{
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return port;
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}
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}
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throw new FastGithubException("当前无可用的端口");
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}
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}
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}
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