/// <summary>
/// Callback that asynchronously updates the UI with the server's response or error message.
/// </summary>
private void PushSender_NotificationSendCompleted(PushNotificationCallbackArgs args)
{
string text = "Status Code: " + args.StatusCode.ToString() + Environment.NewLine +
"TimeStamp: " + args.Timestamp.ToString() + Environment.NewLine +
"Notification Type: " + args.NotificationType.ToString() + Environment.NewLine +
"Notification Status: " + args.NotificationStatus + Environment.NewLine +
"Device Status: " + args.DeviceConnectionStatus + Environment.NewLine +
"Subscription Status: " + args.DeviceConnectionStatus;
if (serverResponse.InvokeRequired)
{
serverResponse.Invoke(new UpdateServerResponseDelegate(UpdateServerResponse), new object[] { text });
}
else
{
UpdateServerResponse(text);
}
}
/// <summary>
/// helper function to set up the request headers based on type and send the notification payload.
/// </summary>
private void SendNotificationByType(Uri channelUri, byte[] payload, NotificationType notificationType)
{
// Check the length of the payload and reject it if too long.
if (payload.Length > MAX_PAYLOAD_LENGTH)
{
throw new ArgumentOutOfRangeException("Payload is too long. Maximum payload size shouldn't exceed " + MAX_PAYLOAD_LENGTH.ToString() + " bytes");
}
try
{
// Create and initialize the request object.
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(channelUri);
request.Method = WebRequestMethods.Http.Post;
request.ContentLength = payload.Length;
request.Headers[MESSAGE_ID_HEADER] = Guid.NewGuid().ToString();
// Each type of push notification uses a different code in its X-NotificationClass
// header to specify its delivery priority. The three priorities are:
// Realtime. The notification is delivered as soon as possible.
// Priority. The notification is delivered within 450 seconds.
// Regular. The notification is delivered within 900 seconds.
// Realtime Priority Regular
// Raw 3-10 13-20 23-31
// Tile 1 11 21
// Toast 2 12 22
switch (notificationType)
{
case NotificationType.Tile:
// the notification type for a tile notification is "token".
request.Headers[WINDOWSPHONE_TARGET_HEADER] = "token";
request.ContentType = "text/xml";
// Request real-time delivery for tile notifications.
request.Headers[NOTIFICATION_CLASS_HEADER] = "1";
break;
case NotificationType.Toast:
request.Headers[WINDOWSPHONE_TARGET_HEADER] = "toast";
request.ContentType = "text/xml";
// Request real-time delivery for toast notifications.
request.Headers[NOTIFICATION_CLASS_HEADER] = "2";
break;
case NotificationType.Raw:
// Request real-time delivery for raw notifications.
request.Headers[NOTIFICATION_CLASS_HEADER] = "3";
break;
default:
throw new ArgumentException("Unknown notification type", "notificationType");
}
Stream requestStream = request.GetRequestStream();
requestStream.Write(payload, 0, payload.Length);
requestStream.Close();
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
if (NotificationSendCompleted != null && response != null)
{
PushNotificationCallbackArgs args = new PushNotificationCallbackArgs(notificationType, (HttpWebResponse)response);
NotificationSendCompleted(args);
}
}
catch (WebException ex)
{
// Notify the caller on exception as well.
if (NotificationSendCompleted != null)
{
if (null != ex.Response)
{
PushNotificationCallbackArgs args = new PushNotificationCallbackArgs(notificationType, (HttpWebResponse)ex.Response);
NotificationSendCompleted(args);
}
}
}
}
