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a4PaperHolder.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.13.35931.197 d17.13
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "a4PaperHolder", "a4PaperHolder\a4PaperHolder.csproj", "{95F1076B-0572-4793-88E2-40D16276519D}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{95F1076B-0572-4793-88E2-40D16276519D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{95F1076B-0572-4793-88E2-40D16276519D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{95F1076B-0572-4793-88E2-40D16276519D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{95F1076B-0572-4793-88E2-40D16276519D}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {40BA2D0D-709F-4322-858E-977E04E6F51C}
+	EndGlobalSection
+EndGlobal

a4PaperHolder/Pages/Index.cshtml

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+@page
+@model a4PaperHolder.Pages.IndexModel
+
+<h2>파일 목록</h2>
+
+<ul>
+    @foreach (var file in Model.Files)
+    {
+        <li>
+            <strong>@file.Name</strong>
+            <strong>@file.HashName</strong>
+            <div>
+                @if (file.MimeType.StartsWith("text"))
+                {
+                    <iframe src="/view?name=@file.Name" width="600" height="400"></iframe>
+                }
+                else if (file.MimeType.StartsWith("image"))
+                {
+                    <img src="/view?name=@file.Name" width="300" />
+                }
+                else if (file.MimeType.StartsWith("video"))
+                {
+                    <video src="/view?name=@file.Name" width="600" controls></video>
+                }
+                else if (file.MimeType.StartsWith("audio"))
+                {
+                    <audio src="/view?name=@file.Name" controls></audio>
+                }
+                else
+                {
+                    <a href="/view?name=@file.Name" download>다운로드</a>
+                }
+            </div>
+        </li>
+    }
+</ul>

a4PaperHolder/Pages/Index.cshtml.cs

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+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.AspNetCore.StaticFiles;
+using System.Security.Cryptography;
+using System.Text;
+using System.Text.Unicode;
+
+namespace a4PaperHolder.Pages
+{
+    public class IndexModel : PageModel
+    {
+        private readonly string basePath = Path.Combine(AppContext.BaseDirectory, "NASFiles");
+
+        //ms<6D><73><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ڵ<EFBFBD> <20>ؽ<EFBFBD><D8BD><EFBFBD><EFBFBD><EFBFBD>Ʈ<EFBFBD>迭<EFBFBD><E8BFAD> <20><><EFBFBD>ڿ<EFBFBD><DABF><EFBFBD> <20>ٲ<EFBFBD><D9B2>ش<EFBFBD> ī<><C4AB><EFBFBD><EFBFBD>
+        static string ByteArrayToString(byte[] byteArray)
+        {
+            int i;
+            StringBuilder stringBuilder = new(byteArray.Length);
+            for (i = 0; i < byteArray.Length; i++)
+            {
+                stringBuilder.Append(byteArray[i].ToString("X2"));
+            }
+            return stringBuilder.ToString();
+        }
+
+        public List<FileItem> Files { get; set; } = [];
+        public void OnGet()
+        {
+            if (!Directory.Exists(basePath))
+                return;
+
+            var provider = new FileExtensionContentTypeProvider();
+            Files = [.. Directory.GetFiles(basePath).Select(path =>
+            {
+                provider.TryGetContentType(path, out var mime);
+                return new FileItem
+                {
+                    Name = Path.GetFileName(path),
+                    HashName = ByteArrayToString(
+                        SHA3_512.HashData(
+                            Encoding.Default.GetBytes(
+                                Path.GetFileName(path)))),
+                    Path = path,
+                    MimeType = mime ?? "application/octet-stream"
+                };
+            })];
+        }
+    }
+
+    public class FileItem
+    {
+        public required string Name { get; set; }
+        public required string HashName {get; set; }
+        public required string Path { get; set; }
+        public required string MimeType { get; set; }
+    }
+}

a4PaperHolder/Program.cs

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+using Microsoft.AspNetCore.StaticFiles;
+using System.Text;
+
+var builder = WebApplication.CreateBuilder(args);
+
+builder.Services.AddRazorPages();
+
+var app = builder.Build();
+
+//razor가 브라우저에서 돌아가면? brazor 작명센스 조졌네
+app.UseStaticFiles();
+app.MapRazorPages();
+
+var basePath = Path.Combine(AppContext.BaseDirectory, "NASFiles");
+
+//파일 미리보기 부분 비디오,오디오 유형은 빨리감기 뒤로감기 안되는 사소한 찐빠가 있으나 이런들 어떠하고 저런들 어떠하리
+app.MapGet("/view", (HttpRequest request) =>
+{
+    var fileName = request.Query["name"].ToString();
+
+    if (fileName.Contains("..") || fileName.Contains(Path.DirectorySeparatorChar))
+        return Results.BadRequest("?");
+
+    var filePath = Path.Combine(basePath, fileName);
+
+    if (!System.IO.File.Exists(filePath))
+        return Results.NotFound();
+
+    var provider = new FileExtensionContentTypeProvider();
+    provider.TryGetContentType(filePath, out var contentType);
+    contentType ??= "application/octet-stream";
+
+    return Results.File(System.IO.File.OpenRead(filePath), contentType);
+});
+
+app.Run();

a4PaperHolder/Properties/launchSettings.json

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+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:27040",
+      "sslPort": 44357
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "http://localhost:5190",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "applicationUrl": "https://localhost:7012;http://localhost:5190",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

a4PaperHolder/a4PaperHolder.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Folder Include="wwwroot\" />
+  </ItemGroup>
+
+</Project>

a4PaperHolder/a4PaperHolder.csproj.user

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ActiveDebugProfile>https</ActiveDebugProfile>
+    <RazorPage_SelectedScaffolderID>RazorPageScaffolder</RazorPage_SelectedScaffolderID>
+    <RazorPage_SelectedScaffolderCategoryPath>root/Common/RazorPage</RazorPage_SelectedScaffolderCategoryPath>
+  </PropertyGroup>
+</Project>

a4PaperHolder/appsettings.Development.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

a4PaperHolder/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}