public void HandleRequest(System.Net.HttpListenerRequest req, ServerResponse res)
{
try
{
_log.Verbose("Handling request for {0} from {1}", req.Url, req.RemoteEndPoint.Address);
TransformAndRun(req, res, (toTransform) => new Uri(_config.UpstreamUrl + toTransform.PathAndQuery),
(requestResponse, serverResponse) =>
{
try
{
if (requestResponse.ContentLength > -1)
serverResponse.ContentLength64 = requestResponse.ContentLength;
foreach (string item in requestResponse.Headers)
{
try
{
if (!_excludedResponseHeaders.Contains(item))
serverResponse.Headers.Add(item, requestResponse.Headers[item]);
}
catch (Exception ex)
{
_log.Warning("Failed to copy Header {0} with Value {1} \r\n {2}", item, requestResponse.Headers[item], ex.Message);
}
}
if(requestResponse.ContentType.StartsWith("text/html", StringComparison.InvariantCultureIgnoreCase)
|| requestResponse.ContentType.StartsWith("text/javascript", StringComparison.InvariantCultureIgnoreCase)
|| requestResponse.ContentType.StartsWith("text/css", StringComparison.InvariantCultureIgnoreCase))
{
var buffer = new MemoryStream();
var rewriter = new AsyncUrlRewriter(requestResponse.GetResponseStream(), buffer,
Encoding.UTF8, _config.UpstreamUrl, _config.OwnUrl);
rewriter.OnException += (sender, e) =>
{
e.Data.Cancel = true;
_log.Error(e.Data.Exception);
try
{
serverResponse.Close();
requestResponse.Close();
}
catch (Exception ex)
{
_log.Error(ex);
}
};
rewriter.Completed += (sender, e) =>
{
serverResponse.ContentLength64 = buffer.Length;
buffer.Position = 0;
var copier = new AsyncStreamCopier(buffer, serverResponse.OutputStream);
copier.Completed += (s, a) =>
{
buffer.Close();
serverResponse.Close();
requestResponse.Close();
};
copier.Copy();
};
rewriter.Copy();
}
else
{
var copier = new AsyncStreamCopier(requestResponse.GetResponseStream(), serverResponse.OutputStream);
copier.Completed += (sender, e) =>
{
serverResponse.Close();
requestResponse.Close();
};
copier.Copy();
}
}
catch (Exception ex)
{
_log.Error(ex);
serverResponse.Do503(ex).Close();
requestResponse.Close();
}
});
}
catch (Exception ex)
{
_log.Error(ex);
res.Do503(ex).Close(); ;
}
}