102 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
			
		
		
	
	
			102 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
using FastGithub.Configuration;
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using FastGithub.ReverseProxy;
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using Microsoft.AspNetCore.Connections;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.AspNetCore.Server.Kestrel.Core;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Options;
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using System;
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using System.Net;
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namespace FastGithub
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{
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    /// <summary>
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    /// Kestrel扩展
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    /// </summary>
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    public static class KestrelServerOptionsExtensions
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    {
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        /// <summary>
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        /// 监听http的反向代理
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        /// </summary>
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        /// <param name="kestrel"></param>
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        public static void ListenHttpReverseProxy(this KestrelServerOptions kestrel)
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        {
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            const int HTTP_PORT = 80;
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            var logger = kestrel.GetLogger();
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            if (LocalMachine.CanListenTcp(HTTP_PORT) == false)
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            {
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                logger.LogWarning($"由于tcp端口{HTTP_PORT}已经被其它进程占用,http反向代理功能将受限");
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            }
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            else
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            {
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                kestrel.Listen(IPAddress.Any, HTTP_PORT);
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                logger.LogInformation($"已监听http反向代理,访问 http://127.0.0.1 或本机其它任意ip可进入Dashboard");
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            }
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        }
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        /// <summary>
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        /// 监听https的反向代理
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        /// </summary>
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        /// <param name="kestrel"></param>
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        public static void ListenHttpsReverseProxy(this KestrelServerOptions kestrel)
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        {
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            const int HTTPS_PORT = 443;
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            if (OperatingSystem.IsWindows())
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            {
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                TcpTable.KillPortOwner(HTTPS_PORT);
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            }
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            if (LocalMachine.CanListenTcp(HTTPS_PORT) == false)
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            {
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                throw new FastGithubException($"由于tcp端口{HTTPS_PORT}已经被其它进程占用,{nameof(FastGithub)}无法进行必须的https反向代理");
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            }
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            var certService = kestrel.ApplicationServices.GetRequiredService<CertService>();
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            certService.CreateCaCertIfNotExists();
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            certService.InstallAndTrustCaCert();
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            kestrel.Listen(IPAddress.Any, HTTPS_PORT,
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                listen => listen.UseHttps(https =>
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                    https.ServerCertificateSelector = (ctx, domain) =>
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                        certService.GetOrCreateServerCert(domain)));
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            var logger = kestrel.GetLogger();
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            logger.LogInformation($"已监听https反向代理,访问 https://127.0.0.1 或本机其它任意ip可进入Dashboard");
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        }
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        /// <summary>
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        /// 监听github的ssh的代理
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        /// </summary>
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        /// <param name="kestrel"></param>
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        public static void ListenGithubSshProxy(this KestrelServerOptions kestrel)
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        {
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            var listenOptions = kestrel.ApplicationServices.GetRequiredService<IOptions<FastGithubOptions>>();
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            var sshPort = listenOptions.Value.Listen.SshPort;
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            var logger = kestrel.GetLogger();
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            if (LocalMachine.CanListenTcp(sshPort) == false)
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            {
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                logger.LogWarning($"由于tcp端口{sshPort}已经被其它进程占用,github的ssh代理功能将受限");
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            }
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            else
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            {
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                kestrel.Listen(IPAddress.Any, sshPort, listen => listen.UseConnectionHandler<GithubSshProxyHandler>());
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                logger.LogInformation("已监听github的ssh代理");
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            }
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        }
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        /// <summary>
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        /// 获取日志
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        /// </summary>
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        /// <param name="kestrel"></param>
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        /// <returns></returns>
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        private static ILogger GetLogger(this KestrelServerOptions kestrel)
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        {
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            var loggerFactory = kestrel.ApplicationServices.GetRequiredService<ILoggerFactory>();
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            return loggerFactory.CreateLogger($"{nameof(FastGithub)}.{nameof(ReverseProxy)}");
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        }
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    }
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}
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