/// <summary>
/// Deletes the temporary file
/// </summary>
/// <param name="tmpFile">FileStream to be deleted</param>
private void DeleteTempFile(FileStream tmpFile)
{
if (SecureDelete.IsPossible())
{
string name = tmpFile.Name;
tmpFile.Close();
bool deleted = SecureDelete.DeleteFile(name, 5); //try secure deletion
if (!deleted)
{
File.Delete(name);
}
}
else //if sdelete is not available
{
//Dispose temp file by overwriting with 0
tmpFile.Position = 0;
byte[] bytes = new byte[16384];
long amount = (tmpFile.Length / bytes.Length + 1);
for (long i = 0; i < amount; i++)
{
tmpFile.Write(bytes, 0, bytes.Length);
}
string name = tmpFile.Name;
tmpFile.Close();
File.Delete(name);
}
}
/// <summary>
/// Closes a FileStream
/// </summary>
/// <param name="targetFile">FileStream to be closed</param>
/// <param name="delete">Delete file afterwards</param>
private void CloseTargetFile(FileStream targetFile, bool delete = false)
{
string path = targetFile.Name;
targetFile.Close();
if (delete)
{
bool deleted = SecureDelete.DeleteFile(path);
if (!deleted)
{
File.Delete(path);
}
}
}