/// <summary>
/// Handle an message
/// </summary>
/// <param name="context">Context unique for this handler instance</param>
/// <param name="message">Message to process</param>
/// <remarks>
/// All messages that can't be handled MUST be send up the chain using <see cref="IPipelineHandlerContext.SendUpstream"/>.
/// </remarks>
public void HandleUpstream(IPipelineHandlerContext context, IPipelineMessage message)
{
var httpmsg = message as ReceivedHttpRequest;
if (httpmsg != null)
{
if (httpmsg.HttpRequest.ContentLength > _sizeLimit)
{
var response = httpmsg.HttpRequest.CreateResponse(HttpStatusCode.RequestEntityTooLarge,
string.Format("Max body size is {0} bytes.",
_sizeLimit));
context.SendDownstream(new SendHttpResponse(httpmsg.HttpRequest, response));
return;
}
if (httpmsg.HttpRequest.ContentLength == 0)
{
context.SendUpstream(message);
return;
}
_currentMessage = httpmsg.HttpRequest;
return; // don't send the request upwards.
}
var msg = message as Received;
if (msg != null)
{
if (_currentMessage == null)
{
throw new InvalidOperationException("Current message is not set. We have no way of knowing when to stop decoding the body.");
}
var result = ParseBody(msg.BufferReader);
if (!result)
{
return;
}
_currentMessage.Body.Position = 0;
_decoderService.Decode((IRequest)_currentMessage);
context.SendUpstream(new ReceivedHttpRequest((HttpRequest)_currentMessage));
_currentMessage = null;
return;
}
// pass on all other messages
context.SendUpstream(message);
}
