[开源]快速构建文件下载，支持文件加密，自定义限速

项目说明

1. 目前支持WebForm文件下载，后续支持Mvc
2. 支持下载文件加密以及下载限速
3. 项目源码：MasterChief.DotNet.Framework.Download
4. Nuget：Install-Package MasterChief.DotNet.Framework.Download
5. 欢迎PR，欢迎Star；

如何使用

1. 通过MasterChief.DotNet.Core.Config构建下载配置文件

   <?xml version=\"1.0\" encoding=\"utf-16\"?>
   <DownloadConfig xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"
                   FileNameEncryptorIv=\"0102030405060708090a0a0c0d010208\"
                   FileNameEncryptorKey=\"DotnetDownloadConfig\"
                   LimitDownloadSpeedKb=\"1024\"
                   DownLoadMainDirectory=\"D:\\OneDrive\\软件\\工具\\\">
   </DownloadConfig>

2. 在WebForm下新建一般处理程序，并实现DownloadHandler抽象类

   /// <summary>
   ///     FileDownloadHandler 的摘要说明
   /// </summary>
   public class FileDownloadHandler : DownloadHandler, IHttpHandler
   {
       public void ProcessRequest(HttpContext context)
       {
           var fileName = context.Request[\"fileName\"];
           StartDownloading(context, fileName);
       }
   
       public bool IsReusable => false;
   
       public override void OnDownloadFailed(HttpContext context, string fileName, string filePath, string ex)
       {
           context.Response.Write(ex);
       }
   
       public override void OnDownloadSucceed(HttpContext context, string fileName, string filePath)
       {
           var result = $\"文件[{fileName}]下载成功，映射路径：{filePath}\";
           context.Response.Write(result);
       }
   }

3. 在WebForm下载文件加密显示

   protected void Page_Load(object sender, EventArgs e)
   {
       string url = DownloadFileContext.Instance.EncryptFileName(\"typora-setup-x64.exe\");
       link.NavigateUrl = \"~/FileDownloadHandler.ashx?fileName=\" + url;
   }

4. 运行效果