public FileStreamResult Download(string fileName)
{
var path = Path.Combine(Server.MapPath("~/App_Data/uploads"), fileName);
var stream = DEncrypt4ImageHelper.DecryptFile(path, "helloworld");
stream.Seek(0, SeekOrigin.Begin);
return(new FileStreamResult(stream, "application/jpg")
{
FileDownloadName = fileName
});
}
static void Main(string[] args)
{
Console.BackgroundColor = ConsoleColor.Red;;
DEncrypt4ImageHelper.EncryptFile(@"format-indent-less.png", @"format-indent-less.img", "helloworld");
Console.WriteLine("Find the encrypt file in debug folder");
DEncrypt4ImageHelper.DecryptFile(@"format-indent-less.img", @"format-indent-less.png", "helloworld");
Console.Write("decrypt file as stream and save it as original format!");
}
public ActionResult Index(HttpPostedFileBase file)
{
if (file.ContentLength > 0)
{
var fileName = Path.GetFileName(file.FileName);
var path = Path.Combine(Server.MapPath("~/App_Data/uploads"), fileName);
var fileEncryptStream = DEncrypt4ImageHelper.EncryptFile(file.InputStream, "helloworld");
var fs = System.IO.File.OpenWrite(path);
foreach (byte b in fileEncryptStream.ToArray())
{
fs.WriteByte(b);
}
fs.Close();
fileEncryptStream.Close();
}
return(RedirectToAction("Index"));
}
