protected override void Dispose(bool finalize)
{
if (_result != null)
{
try
{
_result.EndInvoke();
}
catch (ChoFatalApplicationException)
{
throw;
}
catch (Exception ex)
{
ErrorOccured.Raise(this, new ChoExceptionEventArgs(ex));
}
finally
{
_result = null;
IChoAsyncResult result = ChoConsole.OutputQueuedExecutionService.Enqueue(() =>
{
//Reset to old settings
Console.ForegroundColor = ChoConsole.DefaultConsoleForegroundColor;
Console.BackgroundColor = ChoConsole.DefaultConsoleBackgroundColor;
Console.SetCursorPosition(0, _statusMsgLocation.Y + 1);
Console.WriteLine();
});
result.AsyncWaitHandle.WaitOne();
}
}
}
private void cd_Failed(object sender, ErrorEventArgs e)
{
if (FlagStop)
{
return;
}
var ex = e.GetException();
if (ex is ReturnedContentSizeWrongException)
{
if (Ranges.Count == 2)
{
foreach (var cd in cdList)
{
Info.AcceptRanges = false;
cd.Info.AcceptRanges = false;
cd.UseChunk = false;
}
Ranges.RemoveAt(1);
Ranges[0].End = Info.ContentSize - 1;
foreach (var item in cdList.Where(x => x.Wait))
{
item.Wait = false;
}
return;
}
}
ErrorOccured.Raise(sender, e, aop);
}
private void Process()
{
try
{
if (Info == null)
{
State = Status.GettingHeaders;
GetHeaders();
aop.Post(delegate { DownloadInfoReceived.Raise(this, EventArgs.Empty); }, null);
}
var append = RemainingRangeStart > 0;
var bytesRead = 0;
var buffer = new byte[2 * 1024];
State = Status.SendingRequest;
using (var response = RequestHelper.CreateRequestGetResponse(Info, RemainingRangeStart, BeforeSendingRequest, AfterGettingResponse))
{
State = Status.GettingResponse;
using (var responseStream = response.GetResponseStream())
using (var file = FileHelper.CheckFile(FullFileName, append))
{
while (allowDownload && (bytesRead = responseStream.Read(buffer, 0, buffer.Length)) > 0)
{
State = Status.Downloading;
file.Write(buffer, 0, bytesRead);
TotalBytesReceived += bytesRead;
speedBytesTotal += bytesRead;
aop.Post(delegate
{
ProgressChanged.Raise(this,
new ProgressChangedEventArgs(SpeedInBytes, this.Progress, TotalBytesReceived));
}, Progress);
}
}
}
if (RemainingRangeStart > Info.Length)
{
throw new Exception("Total bytes received overflows content length");
}
if (TotalBytesReceived == Info.Length)
{
State = Status.Completed;
DownloadCompleted.Raise(this, EventArgs.Empty);
}
else if (!allowDownload)
{
State = Status.Paused;
}
}
catch (Exception ex)
{
State = Status.ErrorOccured;
aop.Post(delegate
{
ErrorOccured.Raise(this, new ErrorEventArgs(ex));
}, null);
}
}
/// <summary>
/// Resumes all threads after stopping
/// <exception cref="AltoMultiThreadDownloader.Exceptions.RemoteFilePropertiesChangedException">Thrown when download informations changed, in case of expired url or changed authentication data</exception>
/// </summary>
public void Resume()
{
var currentInfo = GetCurrentInformations();
if (currentInfo == null || !currentInfo.Equals(this.Info))
{
ErrorOccured.Raise(this,
new ErrorEventArgs(
new RemoteFilePropertiesChangedException(this.Info, currentInfo)), aop);
return;
}
speedBytesOffset = TotalBytesReceived;
FlagStop = false;
stp.Reset();
stp.Start();
createNewThreadIfRequired();
Resumed.Raise(this, EventArgs.Empty, aop);
}
private void Process()
{
try
{
//Get the download headers if not exists
if (Info == null)
{
State = Status.GettingHeaders;
GetHeaders();
aop.Post(delegate { DownloadInfoReceived.Raise(this, EventArgs.Empty); }, null);
}
//Gets where download left
var append = RemainingRangeStart > 0;
var bytesRead = 0;
var buffer = new byte[2 * 1024];
State = Status.SendingRequest;
using (var response = RequestHelper.CreateRequestGetResponse(Info, RemainingRangeStart, BeforeSendingRequest, AfterGettingResponse, Info.IsChunked))
{
State = Status.GettingResponse;
using (var responseStream = response.GetResponseStream())
using (var file = FileHelper.CheckFile(FullFileName, append, LastMD5Checksum))
{
while (allowDownload && (bytesRead = responseStream.Read(buffer, 0, buffer.Length)) > 0)
{
State = Status.Downloading;
file.Write(buffer, 0, bytesRead);
TotalBytesReceived += bytesRead;
speedBytesTotal += bytesRead;
aop.Post(delegate
{
ProgressChanged.Raise(this,
new ProgressChangedEventArgs(SpeedInBytes, this.Progress, TotalBytesReceived));
}, Progress);
}
}
}
if (Info.Length > 0 && RemainingRangeStart > Info.Length)
{
throw new Exception("Total bytes received overflows content length");
}
if (TotalBytesReceived == Info.Length || (Info.Length < 1 && allowDownload))
{
State = Status.Completed;
DownloadCompleted.Raise(this, EventArgs.Empty);
}
else if (!allowDownload)
{
State = Status.Paused;
DownloadPaused.Raise(this, EventArgs.Empty);
}
}
catch (Exception ex)
{
if (TotalBytesReceived == Info.Length)
{
State = Status.Completed;
DownloadCompleted.Raise(this, EventArgs.Empty);
}
else if (!allowDownload)
{
State = Status.Paused;
DownloadPaused.Raise(this, EventArgs.Empty);
}
else
{
LastError = ex;
State = Status.ErrorOccured;
aop.Post(delegate
{
ErrorOccured.Raise(this, new ErrorEventArgs(ex));
}, null);
}
}
finally
{
if (LastError == null || !(LastError is FileValidationFailedException))
{
LastMD5Checksum = FileHelper.CalculateMD5(FullFileName);
}
}
}
