public static Boolean CheckFormatoFile(HttpPostedFileBase file, Models.TipoMedia formato = Models.TipoMedia.FOTO)
{
if (file != null && file.ContentLength > 0)
{
string estensione = new FileInfo(Path.GetFileName(file.FileName)).Extension;
string nomeFileUnivoco = System.Guid.NewGuid().ToString() + estensione;
FileMedia media = Models.VerificaUpload.getIstanziaFile(estensione.ToLower());
// formare stringa esadecimale
string hexFile = string.Empty;
Stream stream = file.InputStream;
BinaryReader binary = new BinaryReader(stream);
byte[] firmaFile = binary.ReadBytes(media.NumBytesID);
foreach (byte B in firmaFile)
{
hexFile += B.ToString("X2");
}
if (media != null && media.checkFormato(hexFile) && media.TipoFile == formato)
{
//log.Debug("Tipo file verificato.");
return(true);
}
else
{
// lanciare eccezione file non corrispondente all'estensione
throw new InvalidDataException(App_GlobalResources.Language.ErrorFormatFile);
}
}
return(false);
}
private void OnAddMediaButtonClick(object sender, EventArgs e)
{
if (myAddMediaOpenFileDialog.ShowDialog() == DialogResult.Cancel)
{
return;
}
var media = new FileMedia(myAddMediaOpenFileDialog.FileName);
myVlcControl.Manager.MediaLibrary.MediaItems.Add(media);
myMediasListBox.Items.Add(media);
}
public HttpResponseMessage PostPhoto(FileMedia photo)
{
//System.Threading.Thread.Sleep(2000); // test api latency
//throw new Exception("Oops"); // test unexpected server error
// when the photo us null, it's because the user tried to upload an invalid file type (415)
if (photo == null)
throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
// do not allow photo uploads exceeding 1MB (413)
if (photo.Content.Length > (1024 * 1024))
throw new HttpResponseException(HttpStatusCode.RequestEntityTooLarge);
_photoUpdateHandler.Handle(new UpdateMyPhoto(User)
{
Name = photo.FileName,
MimeType = photo.ContentType,
Content = photo.Content,
});
// for some reason, KendoUIWeb's upload widget will only think the upload succeeded
// when the response is either empty, or contains a JSON payload with text/plain encoding.
// so if we want to send a message back to the client, we have to serialize it in a JSON wrapper.
const string successMessage = "Your photo was changed successfully.";
var successPayload = new { message = successMessage };
var successJson = JsonConvert.SerializeObject(successPayload);
return Request.CreateResponse(HttpStatusCode.OK, successJson, "text/plain");
}
