private void SendResponse(httpResponseType outgoingResponse)
{
MemoryStream msgBody = new MemoryStream();
XmlSerializer xs = new XmlSerializer(typeof(httpResponseType));
xs.Serialize(msgBody, outgoingResponse);
Message msgResponse = new Message(x_httpResponseMessageType, msgBody);
s_currentConversation.Send(msgResponse, s_connection, s_transaction);
}
private void ServiceRequest(httpRequestType incomingRequest)
{
RequestFilterAction reqAction = MatchRequestFilter(incomingRequest);
switch (reqAction)
{
case RequestFilterAction.Deny:
ErrorConversation(2, "Proxy does not accept this type of request to given URL.");
return;
}
HttpWebRequest outgoingRequest = CreateWebRequest(incomingRequest);
if (outgoingRequest == null)
{
SavePendingRequest(incomingRequest);
BeginTimer();
return;
}
HttpWebResponse incomingResponse = null;
ResponseFilterAction respAction = TryWebRequest(outgoingRequest, out incomingResponse);
SqlContext.Pipe.Send(respAction.ToString());
switch (respAction)
{
case ResponseFilterAction.Respond:
httpResponseType outgoingResponse = CreateBrokerResponse(incomingResponse);
SendResponse(outgoingResponse);
EndConversation();
// Deletes the pending request, if there was one stored...
DeletePendingRequest();
break;
case ResponseFilterAction.Retry:
if (m_numRetries == m_numRetriesUsed)
{
ErrorConversation(5, m_lastError);
}
else
{
SavePendingRequest(incomingRequest);
BeginTimer();
}
break;
case ResponseFilterAction.Error:
if (incomingResponse != null)
{
ErrorConversation(4, m_lastError);
}
break;
}
}
private httpResponseType CreateBrokerResponse(HttpWebResponse incomingResponse)
{
httpResponseType outgoingResponse = new httpResponseType();
outgoingResponse.protocolVersion = incomingResponse.ProtocolVersion.ToString();
outgoingResponse.statusCode = (int)incomingResponse.StatusCode;
SqlContext.Pipe.Send("statusCode = " + outgoingResponse.statusCode);
outgoingResponse.statusDescription = incomingResponse.StatusDescription;
List<headerType> headers = new List<headerType>();
if (incomingResponse.ContentEncoding != null)
{
headerType h = new headerType();
h.name = "Content-Encoding";
h.value = incomingResponse.ContentEncoding;
headers.Add(h);
}
if (incomingResponse.ContentLength >= 0)
{
headerType h = new headerType();
h.name = "Content-Length";
h.value = incomingResponse.ContentLength.ToString();
headers.Add(h);
}
if (incomingResponse.ContentType != null)
{
headerType h = new headerType();
h.name = "Content-Type";
h.value = incomingResponse.ContentType;
headers.Add(h);
}
if (incomingResponse.LastModified != null)
{
headerType h = new headerType();
h.name = "Last-Modified";
h.value = incomingResponse.LastModified.ToString();
headers.Add(h);
}
if (incomingResponse.Server != null)
{
headerType h = new headerType();
h.name = "Server";
h.value = incomingResponse.Server;
headers.Add(h);
}
SqlContext.Pipe.Send("done common headers");
for (int i = 0; i < incomingResponse.Headers.Count; i++)
{
headerType h = new headerType();
h.name = incomingResponse.Headers.Keys[i];
h.value = incomingResponse.Headers[i];
headers.Add(h);
}
if (headers.Count > 0)
{
outgoingResponse.headers = headers.ToArray();
}
SqlContext.Pipe.Send("done headers");
int n;
byte[] buffer = new byte[512];
MemoryStream body = new MemoryStream();
Stream ins = incomingResponse.GetResponseStream();
while ((n = ins.Read(buffer, 0, 512)) > 0)
{
body.Write(buffer, 0, n);
}
SqlContext.Pipe.Send("done copying response stream");
outgoingResponse.body = body.ToArray();
incomingResponse.Close();
return outgoingResponse;
}