private static void ProcessNetworkResponse(Delegate del, Delegate netOpInProgressDel)
{
if (isRequestInProgress == false)
{
return;
}
SocketAsyncEventArgs socketReceiveEventArg = new SocketAsyncEventArgs();
socketReceiveEventArg.RemoteEndPoint = endPoint;
socketReceiveEventArg.Completed += new EventHandler <SocketAsyncEventArgs>(delegate(object o, SocketAsyncEventArgs e)
{
if (e.SocketError != SocketError.Success)
{
// signal that a network operation is done and unsuccessful
netOpInProgressDel.DynamicInvoke(false, OperationStatus.Failed);
// clean up the socket
CleanupSocket();
return;
}
// response was received
int num = e.BytesTransferred;
if (num > 0)
{
// get the response as a string
string resp = Encoding.UTF8.GetString(e.Buffer, 0, num);
string[] lines = resp.Split(new string[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
if (lines == null || lines.Length < 2 ||
lines[0] != "HTTP/1.1 200 OK")
{
// signal that a network operation is done and unsuccessful
netOpInProgressDel.DynamicInvoke(false, OperationStatus.Failed);
// clean up the socket
CleanupSocket();
}
// signal that a network operation is done and successful
netOpInProgressDel.DynamicInvoke(false, OperationStatus.Success);
// discover the content type (default to json)
string contentType = "application/json";
foreach (var line in lines)
{
if (line.StartsWith("Content-Type:"))
{
string compositeContentType = line.Split(':')[1];
contentType = compositeContentType.Split(';')[0].Trim();
break;
}
}
// get a stream over the last component of the network response
MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(lines[lines.Length - 1]));
// deserialize the response string
HttpMessageBodyWrapper <string> body =
(HttpMessageBodyWrapper <string>)HttpWebResponseWrapper <string> .DeserializeResponseBody(
stream, contentType, typeof(HttpMessageBodyWrapper <string>));
// signal that a network operation is done and successful
netOpInProgressDel.DynamicInvoke(false, OperationStatus.Success);
// reset the request in progress flag
isRequestInProgress = false;
// * leave the socket open for a potential next transaction *
// CleanupSocket();
// invoke the delegate passed in with the actual response text to return to the caller
del.DynamicInvoke(body == null ? "" : body.Value);
}
else
{
// signal that a network operation is done and unsuccessful
netOpInProgressDel.DynamicInvoke(false, OperationStatus.Failed);
// clean up the socket
CleanupSocket();
}
});
// set the receive buffer
byte[] buffer = new byte[32768];
socketReceiveEventArg.SetBuffer(buffer, 0, buffer.Length);
// receive the response
try
{
bool ret = socket.ReceiveAsync(socketReceiveEventArg);
if (ret == false)
{
// signal that a network operation is done and unsuccessful
netOpInProgressDel.DynamicInvoke(false, OperationStatus.Failed);
// clean up the socket
CleanupSocket();
}
}
catch (Exception ex)
{
// trace network error
TraceHelper.AddMessage("ProcessNetworkResponse: ex: " + ex.Message);
// signal that a network operation is done and unsuccessful
netOpInProgressDel.DynamicInvoke(false, OperationStatus.Failed);
// clean up the socket
CleanupSocket();
}
}
// deserialize the status code out of the message body, and reset the stream
private void DeserializeMessageBody()
{
// get the status code out of the response
bodyWrapper = (HttpMessageBodyWrapper <T>)DeserializeResponseBody(innerResponse, typeof(HttpMessageBodyWrapper <T>));
}
