47 lines
1.5 KiB
C#
47 lines
1.5 KiB
C#
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namespace SHH.CameraDashboard
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{
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// 简单的上下文定义
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public class ProtocolContext
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{
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public string Protocol { get; set; }
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public byte[] Data { get; set; }
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public bool IsBlocked { get; set; } = false;
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public ProtocolContext(string p, byte[] d) { Protocol = p; Data = d; }
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}
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public interface IProtocolInterceptor
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{
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Task OnSendingAsync(ProtocolContext context);
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Task OnReceivedAsync(ProtocolContext context);
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}
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public class InterceptorPipeline
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{
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// 因为 Dashboard 可能没有复杂的 DI，这里支持手动添加列表
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private readonly List<IProtocolInterceptor> _interceptors = new List<IProtocolInterceptor>();
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public void Add(IProtocolInterceptor interceptor) => _interceptors.Add(interceptor);
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public async Task<ProtocolContext?> ExecuteSendAsync(string protocol, byte[] data)
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{
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var ctx = new ProtocolContext(protocol, data);
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foreach (var i in _interceptors)
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{
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await i.OnSendingAsync(ctx);
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if (ctx.IsBlocked) return null;
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}
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return ctx;
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}
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public async Task<ProtocolContext?> ExecuteReceiveAsync(string protocol, byte[] data)
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{
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var ctx = new ProtocolContext(protocol, data);
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foreach (var i in _interceptors)
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{
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await i.OnReceivedAsync(ctx);
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if (ctx.IsBlocked) return null;
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}
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return ctx;
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}
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}
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}
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