private async Task <string> FileTransfer(string sourcePath, string targetPath, string checksum, string tmpFilePath, bool resumeProcessing,
CancellationToken cancellationToken)
{
var credentials = _userAccessCredentials.ReadCredentials();
_totalBytes = 0;
_sizeOfFile = 0;
_processingSpeed = 0;
if (!targetPath.Contains(".tmp"))
{
targetPath = $"{targetPath}.tmp";
}
using (var connection = _networkConnection.Connect(_networkPathInfo.GetNetworkPath(), credentials.Login, credentials.Password))
{
try
{
byte[] buffer = new byte[16384];
int readBytes;
if (File.Exists(targetPath))
{
File.SetAttributes(targetPath, File.GetAttributes(targetPath) & ~FileAttributes.Hidden);
}
using (FileStream sourceStream = File.OpenRead(sourcePath))
using (FileStream targetStream = File.Create(targetPath))
{
if (targetStream.Length == sourceStream.Length)
{
ProcessingFinishedDelegate?.Invoke(true, null);
return(string.Empty);
}
File.SetAttributes(targetPath, File.GetAttributes(targetPath) | FileAttributes.Hidden);
_sizeOfFile = sourceStream.Length;
using (var timer = new System.Threading.Timer(FormStatusUpdate, null, 1000, 1000))
{
while ((readBytes = await sourceStream.ReadAsync(buffer, 0, buffer.Length)) > 0)
{
if (cancellationToken.IsCancellationRequested)
{
cancellationToken.ThrowIfCancellationRequested();
}
await targetStream.WriteAsync(buffer, 0, readBytes);
_totalBytes += readBytes;
}
}
File.SetAttributes(targetPath, File.GetAttributes(targetPath) & ~FileAttributes.Hidden);
ProcessingFinishedDelegate?.Invoke(true, null);
}
string newPath = $"{ Path.GetDirectoryName(targetPath)}\\{Path.GetFileNameWithoutExtension(targetPath)}";
File.Move(targetPath, newPath);
return(newPath);
}
catch (Exception ex)
{
if (resumeProcessing == true)
{
SaveFileInfo(checksum, _totalBytes, tmpFilePath, Path.GetFileName(targetPath));
}
else
{
File.Delete(targetPath);
DeleteRowFromMetaDataFile(checksum, tmpFilePath);
}
ProcessingFinishedDelegate?.Invoke(false, ex);
}
return(string.Empty);
}
}