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DownloadFolder.aspx.cs
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DownloadFolder.aspx.cs
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using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using log4net;
using System.Text;
namespace PhotoGalerie
{
public partial class DownloadFolderPage : System.Web.UI.Page
{
private ILog Logger = LogManager.GetLogger("PhotoGalerie.DownloadFolderPage");
/// <summary>
/// Set header:
/// </summary>
private void ProcessContentType()
{
string contentType = "application/zip";
Response.ContentType = contentType;
}
private FolderInfo GetFolderInfo()
{
string folderParam = Request.QueryString.Get("folder");
return FolderHelper.GetFolderPath(Config.BaseFolder, folderParam);
}
/// <summary>
/// Show save as dialog.
/// Add header: [Content-Disposition]
/// </summary>
private void ProcessDownloadMode(string fileName)
{
fileName = fileName.Replace(' ', '_');
Response.AppendHeader("Content-Disposition", "attachment; filename*=UTF-8''" + HttpUtility.UrlEncode(fileName));
}
private void ProcessCacheMode()
{
Response.Cache.SetExpires(DateTime.UtcNow.AddYears(1));
}
protected void Page_Load(object sender, EventArgs e)
{
LogRequest();
var foldeInfo = GetFolderInfo();
string fileName = foldeInfo.Folders.Count>0? foldeInfo.Folders.Last().Title + ".zip" : "main.zip";
ProcessContentType();
ProcessCacheMode();
ProcessDownloadMode(fileName);
SendFiles(foldeInfo.Path);
}
private void LogRequest()
{
StringBuilder sb = new StringBuilder();
sb.Append("Url: " + Request.Url);
Logger.Debug(sb);
}
private void SendFiles(string folder)
{
List<FileDesc> files = FolderHelper.GetFiles(folder);
using (ZipArchive arc = new ZipArchive(new PositionWrapperStream(Response.OutputStream), ZipArchiveMode.Create, true))
foreach (var file in files)
arc.CreateEntryFromFile(file.Path, file.Name, CompressionLevel.NoCompression);
}
}
}