private void OnUploadProgress(object sender, UploadProgressEventArgs e)
{
Dispatcher.BeginInvoke(() => {
if (e.SessionId != sessionId)
return;
if (statusView == null)
return;
statusView.ProgressView.Value = (float)e.UploadedBytes / (float)e.TotalBytes;
});
}
private async Task<HttpWebResponse> UploadDataAsync(string sessionId, string fileName, Stream imageStream, Dictionary<string, string> parameters)
{
string boundary = "FLICKR_MIME_" + DateTime.Now.ToString("yyyyMMddhhmmss", System.Globalization.DateTimeFormatInfo.InvariantInfo);
string authHeader = AnacondaCore.OAuthCalculateAuthHeader(parameters);
byte[] dataBuffer = CreateUploadData(imageStream, fileName, parameters, boundary);
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(new Uri("https://api.flickr.com/services/upload/"));
req.Method = "POST";
req.ContentType = "multipart/form-data; boundary=" + boundary;
if (!String.IsNullOrEmpty(authHeader))
{
req.Headers["Authorization"] = authHeader;
}
req.ContentLength = dataBuffer.Length;
using (Stream reqStream = await req.GetRequestStreamAsync().ConfigureAwait(false))
{
int bufferSize = 32 * 1024;
if (dataBuffer.Length / 100 > bufferSize) bufferSize = bufferSize * 2;
int uploadedSoFar = 0;
while (uploadedSoFar < dataBuffer.Length)
{
reqStream.Write(dataBuffer, uploadedSoFar, Math.Min(bufferSize, dataBuffer.Length - uploadedSoFar));
uploadedSoFar += bufferSize;
if (PhotoUploadProgress != null)
{
UploadProgressEventArgs args = new UploadProgressEventArgs(sessionId, uploadedSoFar, dataBuffer.Length);
PhotoUploadProgress(this, args);
}
}
reqStream.Close();
}
// Invoke the API
try
{
HttpWebResponse response = (HttpWebResponse)await req.GetResponseAsync().ConfigureAwait(false);
return response;
}
catch (Exception e)
{
var we = e.InnerException as WebException;
if (we != null)
{
var resp = we.Response as HttpWebResponse;
var code = resp.StatusCode;
Debug.WriteLine("Status:{0}", we.Status);
return resp;
}
else
throw;
}
}