protected override async Task <HttpResponseMessage> SendAsyncCore(HttpRequestMessage request,
CancellationToken cancellationToken)
{
ThreadId = Thread.CurrentThread.ManagedThreadId;
if (Calls == CancelRequestNum && CancellationTokenSource != null)
{
CancellationTokenSource.Cancel();
}
// validate the request
Assert.That(request.RequestUri, Is.EqualTo(DownloadUri));
Assert.That(request.Headers.Range, Is.EqualTo(new RangeHeaderValue(bytesRead,
bytesRead + ChunkSize - 1)));
// read the current data from the stream
var contentLength = StreamContent.Length;
byte[] buffer = new byte[ChunkSize];
int currentRead = StreamContent.Read(buffer, 0, ChunkSize);
var readStream = new MemoryStream(buffer, 0, currentRead);
// prepare the response to send back
var response = new HttpResponseMessage();
response.Content = new StreamContent(readStream);
response.Content.Headers.ContentType = new MediaTypeHeaderValue("image/png");
response.Content.Headers.ContentLength = currentRead;
response.Content.Headers.ContentRange = new ContentRangeHeaderValue(bytesRead,
bytesRead + currentRead - 1, contentLength);
bytesRead += currentRead;
return(response);
}
protected override Task <HttpResponseMessage> SendAsyncCore(HttpRequestMessage request,
CancellationToken cancellationToken)
{
TaskCompletionSource <HttpResponseMessage> tcs = new TaskCompletionSource <HttpResponseMessage>();
if (Calls == CancelRequestNum && CancellationTokenSource != null)
{
CancellationTokenSource.Cancel();
}
// validate the request
Assert.That(request.RequestUri, Is.EqualTo(DownloadUri));
Assert.That(request.Headers.Range, Is.EqualTo(new RangeHeaderValue(bytesRead,
bytesRead + ChunkSize - 1)));
// prepare the response to send back
var response = new HttpResponseMessage();
response.StatusCode = StatusCode;
if (StatusCode == HttpStatusCode.OK)
{
// read the current data from the stream
var contentLength = StreamContent.Length;
byte[] buffer = new byte[ChunkSize];
int currentRead = StreamContent.Read(buffer, 0, ChunkSize);
var readStream = new MemoryStream(buffer, 0, currentRead);
response.Content = new StreamContent(readStream);
response.Content.Headers.ContentType = new MediaTypeHeaderValue("image/png");
response.Content.Headers.ContentLength = currentRead;
response.Content.Headers.ContentRange = new ContentRangeHeaderValue(bytesRead,
bytesRead + currentRead - 1, contentLength);
bytesRead += currentRead;
}
else
{
response.Content = new StreamContent(new MemoryStream(Encoding.UTF8.GetBytes(ErrorResponse)));
}
tcs.SetResult(response);
return(tcs.Task);
}
