From 029cae75a66e3c444033fbed0a14108aec7fb5e0 Mon Sep 17 00:00:00 2001 From: cal Date: Tue, 5 Aug 2025 22:23:28 +0800 Subject: [PATCH] first commit --- Appsettings.cs | 9 ++++ Controllers/DownLoadController.cs | 80 +++++++++++++++++++++++++++++++ FileServer.csproj | 35 ++++++++++++++ FileServer.csproj.user | 7 +++ FileServer.sln | 24 ++++++++++ Program.cs | 29 +++++++++++ Startup.cs | 70 +++++++++++++++++++++++++++ appsettings.json | 5 ++ 8 files changed, 259 insertions(+) create mode 100755 Appsettings.cs create mode 100755 Controllers/DownLoadController.cs create mode 100755 FileServer.csproj create mode 100755 FileServer.csproj.user create mode 100644 FileServer.sln create mode 100755 Program.cs create mode 100755 Startup.cs create mode 100755 appsettings.json diff --git a/Appsettings.cs b/Appsettings.cs new file mode 100755 index 0000000..9ad0162 --- /dev/null +++ b/Appsettings.cs @@ -0,0 +1,9 @@ +namespace ETFileServer +{ + public class Appsettings + { + public string DirectoryPath; + + public int Port; + } +} \ No newline at end of file diff --git a/Controllers/DownLoadController.cs b/Controllers/DownLoadController.cs new file mode 100755 index 0000000..aeabfc1 --- /dev/null +++ b/Controllers/DownLoadController.cs @@ -0,0 +1,80 @@ +using System.IO; +using Microsoft.AspNetCore.Mvc; +using Microsoft.AspNetCore.Mvc.Filters; +using Microsoft.Extensions.Configuration; +using Microsoft.Extensions.FileProviders; +using Microsoft.Extensions.Logging; + +namespace ETFileServer +{ + [Route("")] + [ApiController] + public class DownLoadController : Controller + { + private readonly IFileProvider _fileProvider; + private readonly ILogger _logger; + private readonly IConfiguration _configuration; + + public DownLoadController(ILogger logger, IFileProvider fileProvider, IConfiguration configuration) + { + _logger = logger; + _fileProvider = fileProvider; + _configuration = configuration; + } + + [HttpGet("{*filePath}")] + public IActionResult Get(string filePath) + { + if (string.IsNullOrEmpty(filePath)) + { + return BadRequest("A file path must be provided."); + } + + var fileInfo = _fileProvider.GetFileInfo(filePath); + + if (!fileInfo.Exists || fileInfo.IsDirectory) + { + _logger.LogWarning($"File not found or is a directory: {filePath}"); + return NotFound(); + } + + // 检查文件大小是否超出限制 + long maxFileSizeInBytes = _configuration.GetValue("MaxFileSizeMb", 100) * 1024 * 1024; + if (fileInfo.Length > maxFileSizeInBytes) + { + _logger.LogWarning($"File '{filePath}' exceeds the size limit of {maxFileSizeInBytes} bytes."); + return new StatusCodeResult(413); // 413 Payload Too Large + } + + _logger.LogInformation($"Serving file: {fileInfo.PhysicalPath}"); + + return PhysicalFile(fileInfo.PhysicalPath, "application/octet-stream", fileInfo.Name); + } + + public override void OnActionExecuting(ActionExecutingContext context) + { + var httpContext = context.HttpContext; + if (httpContext.Request.Method != "GET") + { + context.Result = new StatusCodeResult(405); + return; + } + + if (httpContext.WebSockets.IsWebSocketRequest) + { + context.Result = new BadRequestResult(); + return; + } + + if (httpContext.Request.HasFormContentType) + { + context.Result = new BadRequestResult(); + return; + } + } + + public override void OnActionExecuted(ActionExecutedContext context) + { + } + } +} diff --git a/FileServer.csproj b/FileServer.csproj new file mode 100755 index 0000000..ed97d61 --- /dev/null +++ b/FileServer.csproj @@ -0,0 +1,35 @@ + + + + net9.0 + latest + + + false + + + ../../FileServer/ + + + ../../FileServer/ + + + + + + + + + + + <_ContentIncludedByDefault Remove="Properties\launchSettings.json" /> + + + + + PreserveNewest + PreserveNewest + + + + diff --git a/FileServer.csproj.user b/FileServer.csproj.user new file mode 100755 index 0000000..df7ac3d --- /dev/null +++ b/FileServer.csproj.user @@ -0,0 +1,7 @@ + + + + IIS Express + FolderProfile + + \ No newline at end of file diff --git a/FileServer.sln b/FileServer.sln new file mode 100644 index 0000000..ff2e3ee --- /dev/null +++ b/FileServer.sln @@ -0,0 +1,24 @@ +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.5.2.0 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FileServer", "FileServer.csproj", "{79759A8D-256A-D7F8-1522-9077B7D22E98}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|Any CPU = Debug|Any CPU + Release|Any CPU = Release|Any CPU + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {79759A8D-256A-D7F8-1522-9077B7D22E98}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {79759A8D-256A-D7F8-1522-9077B7D22E98}.Debug|Any CPU.Build.0 = Debug|Any CPU + {79759A8D-256A-D7F8-1522-9077B7D22E98}.Release|Any CPU.ActiveCfg = Release|Any CPU + {79759A8D-256A-D7F8-1522-9077B7D22E98}.Release|Any CPU.Build.0 = Release|Any CPU + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection + GlobalSection(ExtensibilityGlobals) = postSolution + SolutionGuid = {0C6B39F7-F6FC-4CD4-8051-EBB8EC73D9AB} + EndGlobalSection +EndGlobal diff --git a/Program.cs b/Program.cs new file mode 100755 index 0000000..3a90ac6 --- /dev/null +++ b/Program.cs @@ -0,0 +1,29 @@ +using System.IO; +using Microsoft.AspNetCore; +using Microsoft.AspNetCore.Hosting; +using Microsoft.Extensions.Configuration; + + +namespace ETFileServer +{ + public class Program + { + public static void Main(string[] args) + { + CreateWebHostBuilder(args).Build().Run(); + } + + public static IWebHostBuilder CreateWebHostBuilder(string[] args) + { + IConfigurationRoot config = new ConfigurationBuilder() + .SetBasePath(Directory.GetCurrentDirectory()) + .AddJsonFile("appsettings.json", true) + .Build(); + + return WebHost.CreateDefaultBuilder(args) + .UseConfiguration(config) + .UseUrls(config["urls"]) + .UseStartup(); + } + } +} \ No newline at end of file diff --git a/Startup.cs b/Startup.cs new file mode 100755 index 0000000..eb2e3d9 --- /dev/null +++ b/Startup.cs @@ -0,0 +1,70 @@ +using System; +using System.IO; +using System.Threading.Tasks; +using Microsoft.AspNetCore.Builder; +using Microsoft.AspNetCore.Hosting; +using Microsoft.Extensions.Configuration; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.FileProviders; +using Microsoft.Extensions.Hosting; + +namespace ETFileServer +{ + public class Startup + { + private IConfiguration Configuration { get; } + + public Startup(IConfiguration configuration) + { + Configuration = configuration; + } + + public void ConfigureServices(IServiceCollection services) + { + services.AddControllers(); + + // 1. 从配置中获取文件根目录路径 + string fileRootPath = Configuration["DirectoryPath"]; + if (string.IsNullOrEmpty(fileRootPath)) + { + throw new InvalidOperationException("DirectoryPath is not configured in appsettings.json."); + } + + // 2. 解析为绝对路径 + string fullPath = Path.GetFullPath(fileRootPath); + if (!Directory.Exists(fullPath)) + { + // 在启动时检查目录是否存在，如果不存在则创建 + Directory.CreateDirectory(fullPath); + Console.WriteLine($"Warning: Root directory not found. Created directory at: {fullPath}"); + } + + // 3. 创建并注册一个 PhysicalFileProvider 作为单例服务 + // 这样整个应用都可以安全地使用它来访问文件 + var provider = new PhysicalFileProvider(fullPath); + services.AddSingleton(provider); + } + + public void Configure(IApplicationBuilder app, IWebHostEnvironment env) + { + if (env.IsDevelopment()) + { + app.UseDeveloperExceptionPage(); + } + + app.UseRouting(); + + app.UseEndpoints(endpoints => + { + endpoints.MapControllers(); + }); + + // 对于任何未匹配到Controller的请求，直接返回404 Not Found + app.Run(context => + { + context.Response.StatusCode = 404; + return Task.CompletedTask; + }); + } + } +} diff --git a/appsettings.json b/appsettings.json new file mode 100755 index 0000000..7fe7369 --- /dev/null +++ b/appsettings.json @@ -0,0 +1,5 @@ +{ + "urls": "http://*:2083", + "DirectoryPath": "PublicFiles/", + "MaxFileSizeMb": 100 +} \ No newline at end of file