2 This file is part of the HandBrake source code.
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3 Homepage: <http://handbrake.fr>.
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4 It may be used under the terms of the GNU General Public License. */
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9 using System.Diagnostics;
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12 using System.Threading;
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13 using System.Windows.Forms;
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15 public partial class frmDownload : Form
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17 private readonly Thread _downloadThread;
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18 private Stream _responceStream;
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19 private Stream _loacalStream;
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20 private HttpWebRequest _webRequest;
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21 private HttpWebResponse _webResponse;
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22 private static int _progress;
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23 private bool _killThread;
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25 private delegate void UpdateProgessCallback(long bytesRead, long totalBytes);
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27 private delegate void DownloadCompleteCallback();
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29 private delegate void DownloadFailedCallback();
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31 public frmDownload(string filename)
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33 InitializeComponent();
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35 _downloadThread = new Thread(Download);
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36 _downloadThread.Start(filename);
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39 private void Download(object file)
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41 string tempPath = Path.Combine(Path.GetTempPath(), "handbrake-setup.exe");
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42 string hbUpdate = (string) file;
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43 WebClient wcDownload = new WebClient();
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47 if (File.Exists(tempPath))
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48 File.Delete(tempPath);
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50 _webRequest = (HttpWebRequest) WebRequest.Create(hbUpdate);
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51 _webRequest.Credentials = CredentialCache.DefaultCredentials;
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52 _webResponse = (HttpWebResponse) _webRequest.GetResponse();
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53 long fileSize = _webResponse.ContentLength;
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55 _responceStream = wcDownload.OpenRead(hbUpdate);
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56 _loacalStream = new FileStream(tempPath, FileMode.Create, FileAccess.Write, FileShare.None);
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59 byte[] downBuffer = new byte[2048];
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62 while ((bytesSize = _responceStream.Read(downBuffer, 0, downBuffer.Length)) > 0)
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66 _loacalStream.Write(downBuffer, 0, bytesSize);
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67 flength = _loacalStream.Length;
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68 Invoke(new UpdateProgessCallback(this.UpdateProgress), new object[] {_loacalStream.Length, fileSize});
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71 _responceStream.Close();
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72 _loacalStream.Close();
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74 if (flength != fileSize)
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75 Invoke(new DownloadFailedCallback(this.DownloadFailed));
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77 Invoke(new DownloadCompleteCallback(this.DownloadComplete));
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85 private void UpdateProgress(long bytesRead, long totalBytes)
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87 long p = (bytesRead * 100) / totalBytes;
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88 int.TryParse(p.ToString(), out _progress);
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89 progress_download.Value = _progress;
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90 lblProgress.Text = (bytesRead / 1024) + "k of " + (totalBytes / 1024) + "k ";
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93 private void DownloadComplete()
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95 lblProgress.Text = "Download Complete";
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96 btn_cancel.Text = "Close";
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98 Process.Start(Path.Combine(Path.GetTempPath(), "handbrake-setup.exe"));
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100 Application.Exit();
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103 private void DownloadFailed()
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105 lblProgress.Text = "Download Failed";
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106 btn_cancel.Text = "Close";
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109 private void btn_cancel_Click(object sender, EventArgs e)
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111 _killThread = true;
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112 lblProgress.Text = "Cancelling ...";
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113 if (_webResponse != null) _webResponse.Close();
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114 if (_responceStream != null) _responceStream.Close();
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115 if (_loacalStream != null) _loacalStream.Close();
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