65 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
			
		
		
	
	
			65 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
using Microsoft.Extensions.Hosting;
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using Microsoft.Extensions.Logging;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Linq;
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using System.Runtime.Versioning;
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using System.Threading;
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using System.Threading.Tasks;
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namespace FastGithub.PacketIntercept
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{
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    /// <summary>
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    /// tcp拦截后台服务
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    /// </summary>
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    [SupportedOSPlatform("windows")]
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    sealed class TcpInterceptHostedService : BackgroundService
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    {
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        private readonly IEnumerable<ITcpInterceptor> tcpInterceptors;
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        private readonly ILogger<TcpInterceptHostedService> logger;
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        private readonly IHost host;
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        /// <summary>
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        /// tcp拦截后台服务
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        /// </summary>
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        /// <param name="tcpInterceptors"></param>
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        /// <param name="logger"></param>
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        /// <param name="host"></param>
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        public TcpInterceptHostedService(
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            IEnumerable<ITcpInterceptor> tcpInterceptors,
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            ILogger<TcpInterceptHostedService> logger,
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            IHost host)
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        {
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            this.tcpInterceptors = tcpInterceptors;
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            this.logger = logger;
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            this.host = host;
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        }
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        /// <summary>
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        /// https后台
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        /// </summary>
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        /// <param name="stoppingToken"></param>
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        /// <returns></returns>
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        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
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        {
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            try
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            {
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                var tasks = this.tcpInterceptors.Select(item => item.InterceptAsync(stoppingToken));
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                await Task.WhenAll(tasks);
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            }
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            catch (OperationCanceledException)
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            {
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            }
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            catch (Win32Exception ex) when (ex.NativeErrorCode == 995)
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            {
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            }
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            catch (Exception ex)
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            {
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                this.logger.LogError(ex, "tcp拦截器异常");
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                await this.host.StopAsync(stoppingToken);
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            }
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        }
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    }
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}
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