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/* frmDownload.cs $
This file is part of the HandBrake source code.
Homepage: <http://handbrake.fr>.
It may be used under the terms of the GNU General Public License. */
using System;
using System.Windows.Forms;
using System.Net;
using System.IO;
using System.Threading;
using System.Diagnostics;
namespace Handbrake
{
public partial class frmDownload : Form
{
private readonly Thread downloadThread;
private Stream responceStream;
private Stream loacalStream;
private HttpWebRequest webRequest;
private HttpWebResponse webResponse;
private static int progress;
private delegate void UpdateProgessCallback(Int64 BytesRead, Int64 TotalBytes);
private delegate void DownloadCompleteCallback();
private delegate void DownloadFailedCallback();
private string file;
public frmDownload(string filename)
{
InitializeComponent();
file = filename;
downloadThread = new Thread(Download);
downloadThread.Start();
}
private void Download()
{
string tempPath = Path.Combine(Path.GetTempPath(), "handbrake-setup.exe");
string hbUpdate = file;
WebClient wcDownload = new WebClient();
try
{
if (File.Exists(tempPath))
File.Delete(tempPath);
webRequest = (HttpWebRequest)WebRequest.Create(hbUpdate);
webRequest.Credentials = CredentialCache.DefaultCredentials;
webResponse = (HttpWebResponse)webRequest.GetResponse();
Int64 fileSize = webResponse.ContentLength;
responceStream = wcDownload.OpenRead(hbUpdate);
loacalStream = new FileStream(tempPath, FileMode.Create, FileAccess.Write, FileShare.None);
int bytesSize;
byte[] downBuffer = new byte[2048];
long flength = 0;
while ((bytesSize = responceStream.Read(downBuffer, 0, downBuffer.Length)) > 0)
{
loacalStream.Write(downBuffer, 0, bytesSize);
flength = loacalStream.Length;
Invoke(new UpdateProgessCallback(this.UpdateProgress), new object[] { loacalStream.Length, fileSize });
}
responceStream.Close();
loacalStream.Close();
if (flength != fileSize)
Invoke(new DownloadFailedCallback(this.downloadFailed));
else
Invoke(new DownloadCompleteCallback(this.downloadComplete));
}
catch (Exception)
{
// Do Nothing
}
}
private void UpdateProgress(Int64 BytesRead, Int64 TotalBytes)
{
try
{
long p = (BytesRead * 100) / TotalBytes;
progress = int.Parse(p.ToString());
progress_download.Value = progress;
lblProgress.Text = (BytesRead / 1024) + "k of " + (TotalBytes / 1024) + "k ";
}
catch (Exception exc)
{
MessageBox.Show("Integer Conversion Error On Download \n" + exc, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void downloadComplete()
{
lblProgress.Text = "Download Complete";
btn_cancel.Text = "Close";
string tempPath = Path.Combine(Path.GetTempPath(), "handbrake-setup.exe");
Process.Start(tempPath);
this.Close();
Application.Exit();
}
private void downloadFailed()
{
lblProgress.Text = "Download Failed";
btn_cancel.Text = "Close";
}
private void btn_cancel_Click(object sender, EventArgs e)
{
try
{
webResponse.Close();
responceStream.Close();
loacalStream.Close();
downloadThread.Abort();
progress_download.Value = 0;
lblProgress.Text = "Download Stopped";
this.Close();
}
catch (Exception)
{
// Do nothing
}
}
}
}
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