public static FtpFileInfo Parse(string s)
{
var parts = s.Split(new[] {' '}, StringSplitOptions.RemoveEmptyEntries);
var date = DateTime.ParseExact(parts[0], "mm-dd-yy", CultureInfo.InvariantCulture);
var time = DateTime.ParseExact(parts[1], "hh:mmtt", CultureInfo.InvariantCulture);
var fileInfo = new FtpFileInfo
{
CreatedTime = date.Date + time.TimeOfDay,
Size = double.Parse(parts[2]),
Name = parts[3]
};
return fileInfo;
}
public async Task GetFileStreamAsync(FtpFileInfo fileInfo, Stream outputStream)
{
DownloadStarted?.Invoke(this, new DownloadStartedEventArgs(fileInfo));
DownloadProgressUpdated?.Invoke(this, new DownloadStatusUpdatedEventArgs(fileInfo, 0));
var ftpRequest = PrepareRequest(fileInfo.Uri.AbsolutePath, WebRequestMethods.Ftp.DownloadFile);
try
{
using (var response = await ftpRequest.GetResponseAsync())
using (var responseStream = response.GetResponseStream())
{
if (responseStream == null)
{
throw new FtpException();
}
var streamLength = fileInfo.Size;
double streamProcessed = 0;
var buffer = new byte[16*1024];
int read;
while ((read = await responseStream.ReadAsync(buffer, 0, buffer.Length)) > 0)
{
await outputStream.WriteAsync(buffer, 0, read);
streamProcessed += read;
DownloadProgressUpdated?.Invoke(this,
new DownloadStatusUpdatedEventArgs(fileInfo, streamProcessed/streamLength*100));
}
if (fileInfo.Size.Equals(streamProcessed) == false)
{
throw new FtpException();
}
}
}
catch
{
DownloadFailed?.Invoke(this, new DownloadFailedEventArgs(fileInfo));
}
DownloadCompleted?.Invoke(this, new DownloadCompletedEventArgs(fileInfo));
}
private ProcessStatusUiElement CreateStatusUiElements(FtpFileInfo fileInfo)
{
var label = new TextBlock
{
Text = $"{fileInfo.Name} ({fileInfo.StringSize})",
VerticalAlignment = VerticalAlignment.Top,
Margin = new Thickness(10, 0, 10, 3),
};
var progressBar = new ProgressBar
{
Height = 5,
VerticalAlignment = VerticalAlignment.Top,
Margin = new Thickness(10, 0, 10, 10)
};
MainPanel.Children.Add(label);
Canvas.SetLeft(label, 10);
Canvas.SetTop(label, 0);
MainPanel.Children.Add(progressBar);
Canvas.SetLeft(progressBar, 10);
Canvas.SetTop(progressBar, 0);
return new ProcessStatusUiElement
{
Label = label,
ProgressBar = progressBar
};
}
public void GetFileStream(FtpFileInfo fileInfo, Stream outputStream)
{
Task.Factory.StartNew(() => GetFileStreamAsync(fileInfo, outputStream).Wait()).Wait();
}