72 lines
2.7 KiB
C#
72 lines
2.7 KiB
C#
using System;
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using System.IO;
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.AspNetCore.Hosting.Server;
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using Microsoft.AspNetCore.Hosting.Server.Features;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.FileProviders;
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using Microsoft.Extensions.Logging;
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namespace XWorld.Server.Gateway
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{
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// 独立内网 CDN：Kestrel 静态文件服务，HTTP 根 = root（发布产物 client/ 目录）。
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// 仿 GameServerHost 的 Start/Stop 形态；缺失文件返回 404，无目录浏览。
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public sealed class StaticFileServer
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{
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private readonly string _root;
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private readonly int _port;
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private readonly bool _bindAll;
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private WebApplication _app;
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public string HttpBaseUrl { get; private set; } // 例如 http://127.0.0.1:15081
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public StaticFileServer(string root, int port = 15081, bool bindAllInterfaces = false)
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{
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if (string.IsNullOrWhiteSpace(root)) throw new ArgumentException("root 不能为空", nameof(root));
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_root = Path.GetFullPath(root);
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_port = port;
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_bindAll = bindAllInterfaces;
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}
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public async Task StartAsync()
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{
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Directory.CreateDirectory(_root); // 根目录不存在则建空目录（GET 全 404，而非启动崩溃）
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var builder = WebApplication.CreateBuilder();
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builder.Logging.ClearProviders();
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builder.WebHost.ConfigureKestrel(o =>
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o.Listen(_bindAll ? System.Net.IPAddress.Any : System.Net.IPAddress.Loopback, _port)); // 0 = 临时端口
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var app = builder.Build();
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var provider = new PhysicalFileProvider(_root);
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var opts = new StaticFileOptions
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{
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FileProvider = provider,
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ServeUnknownFileTypes = true, // .bytes/.unity3d/.sig 等无标准 MIME 也要发
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DefaultContentType = "application/octet-stream",
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};
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app.UseStaticFiles(opts); // 仅静态文件，不开目录浏览；未命中落到下面的 404
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await app.StartAsync();
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_app = app;
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string http = app.Services.GetRequiredService<IServer>()
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.Features.Get<IServerAddressesFeature>().Addresses.FirstOrDefault()
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?? throw new InvalidOperationException("Kestrel 已启动但未注册任何监听地址");
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HttpBaseUrl = http;
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}
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public async Task StopAsync()
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{
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if (_app == null) return;
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await _app.StopAsync();
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await _app.DisposeAsync();
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_app = null;
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}
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}
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}
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