/// <summary>
/// Sends the request and waits for a response
/// </summary>
/// <param name="request">The request to be processed by the server and for which we want a response.</param>
/// <returns></returns>
public virtual HttpResponse GetResponse(
HttpRequest request,
HttpMessageProgressEventHandler onSendProgress,
HttpMessageProgressEventHandler onRecvProgress,
object stateObject)
{
try
{
// send the request
this.SendRequest(request, onSendProgress, stateObject);
// lock the reader
HttpResponse response = null;
lock (_messageReader)
{
// receive the response
HttpMessage message = _messageReader.Read(_socket, null, onRecvProgress, stateObject);
if (message.Type == HttpMessageTypes.HttpResponse)
{
response = new HttpResponse(message);
}
}
if (response != null)
{
Debug.WriteLineIf(_verbose, "Logging response...", MY_TRACE_CATEGORY);
Debug.WriteIf(_verbose, response.ToString(false));
}
return(response);
}
catch (Exception ex)
{
// notify that this connection has encountered an exception
this.OnException(this, new ExceptionEventArgs(ex));
this.Close();
}
return(null);
}
/// <summary>
/// Tries to receive data from the network on a background thread
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected virtual void OnReadFromSocket(object sender, BackgroundThreadStartEventArgs threadStartArgs)
{
try
{
// create a new message reader
_messageReader = new HttpMessageReader();
while(true)
{
try
{
// if (!_isServerSideConnection)
// Debug.WriteLine(string.Format("User-Agent connection '{0}' trying to read next incoming message from '{1}'", _id.ToString(), this.RemoteAddress.ToString()), MY_TRACE_CATEGORY);
// else
// Debug.WriteLine(string.Format("Server-Side connection '{0}' trying to read next incoming message from '{1}'", _id.ToString(), this.RemoteAddress.ToString()), MY_TRACE_CATEGORY);
// read a single message
HttpMessage message = null;
// lock the reader
lock(_messageReader)
{
// read a message
message = _messageReader.Read(_socket, _stopEvent);
}
// what type of message is this ?
switch(message.Type)
{
/*
* process the request
* */
case HttpMessageTypes.HttpRequest:
{
// create a request event args
HttpRequestCancelEventArgs e = new HttpRequestCancelEventArgs(new HttpRequest(message), false);
// process the request by dispatching it and then responding if need be
this.OnRequestReceived(this, e);
// // next check the request to see if the connection should be closed after the response was sent
// if (HttpUtils.Contains(e.Request.Connection, HttpConnections.Close))
// {
// // yup, they wanted us to close the connection automatically so lets do that now
// this.Close();
// return;
// }
break;
}
/*
* process the response
* */
case HttpMessageTypes.HttpResponse:
{
this.OnResponseReceived(this, new HttpResponseEventArgs(new HttpResponse(message)));
break;
}
/*
* an unknown message type
* */
default:
{
// hopefully this will never happen!
Debug.WriteLine(string.Format("A message of unknown type was received from '{0}'...\n{1}", message));
break;
}
};
}
catch(HttpMessageReaderAbortedException)
{
// the reader was aborted
}
catch(HttpConnectionClosedByPeerException)
{
/*
* the remote host has closed the connection
* */
this.Close();
return;
}
// see if we should stop receiving
if (_stopEvent != null)
if (_stopEvent.WaitOne(1, false))
{
/*
* we have recieved a signal that we should stop receiving
* and disconnect the current connection
* */
if (_disconnectOnStop)
this.Close();
return;
}
}
}
catch(ThreadAbortException)
{
/*
* the thread is aborting
* */
if (_disconnectOnStop)
this.Close();
}
catch(ObjectDisposedException)
{
/*
* the connection has closed the socket
* */
this.Close();
}
catch(SocketException ex)
{
// if the connection is reset, or a blocking call was cancelled with a call to cancelblockingcall
if (ex.ErrorCode == (int)SocketErrors.WSAECONNRESET ||
ex.ErrorCode == (int)SocketErrors.WSAEINTR)
{
this.Close();
return;
}
// notify that this connection has encountered an exception
this.OnException(this, new ExceptionEventArgs(ex));
}
catch(Exception ex)
{
// notify that this connection has encountered an exception
this.OnException(this, new ExceptionEventArgs(ex));
}
// finally
// {
// Debug.WriteLineIf(!_isServerSideConnection, string.Format("*** exiting receiving thread loop for connection '{0}'", _id.ToString()), MY_TRACE_CATEGORY);
// }
}
/// <summary>
/// Tries to receive data from the network on a background thread
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected virtual void OnReadFromSocket(object sender, BackgroundThreadStartEventArgs threadStartArgs)
{
try
{
// create a new message reader
_messageReader = new HttpMessageReader();
while (true)
{
try
{
// if (!_isServerSideConnection)
// Debug.WriteLine(string.Format("User-Agent connection '{0}' trying to read next incoming message from '{1}'", _id.ToString(), this.RemoteAddress.ToString()), MY_TRACE_CATEGORY);
// else
// Debug.WriteLine(string.Format("Server-Side connection '{0}' trying to read next incoming message from '{1}'", _id.ToString(), this.RemoteAddress.ToString()), MY_TRACE_CATEGORY);
// read a single message
HttpMessage message = null;
// lock the reader
lock (_messageReader)
{
// read a message
message = _messageReader.Read(_socket, _stopEvent);
}
// what type of message is this ?
switch (message.Type)
{
/*
* process the request
* */
case HttpMessageTypes.HttpRequest:
{
// create a request event args
HttpRequestCancelEventArgs e = new HttpRequestCancelEventArgs(new HttpRequest(message), false);
// process the request by dispatching it and then responding if need be
this.OnRequestReceived(this, e);
// // next check the request to see if the connection should be closed after the response was sent
// if (HttpUtils.Contains(e.Request.Connection, HttpConnections.Close))
// {
// // yup, they wanted us to close the connection automatically so lets do that now
// this.Close();
// return;
// }
break;
}
/*
* process the response
* */
case HttpMessageTypes.HttpResponse:
{
this.OnResponseReceived(this, new HttpResponseEventArgs(new HttpResponse(message)));
break;
}
/*
* an unknown message type
* */
default:
{
// hopefully this will never happen!
Debug.WriteLine(string.Format("A message of unknown type was received from '{0}'...\n{1}", message));
break;
}
}
;
}
catch (HttpMessageReaderAbortedException)
{
// the reader was aborted
}
catch (HttpConnectionClosedByPeerException)
{
/*
* the remote host has closed the connection
* */
this.Close();
return;
}
// see if we should stop receiving
if (_stopEvent != null)
{
if (_stopEvent.WaitOne(1, false))
{
/*
* we have recieved a signal that we should stop receiving
* and disconnect the current connection
* */
if (_disconnectOnStop)
{
this.Close();
}
return;
}
}
}
}
catch (ThreadAbortException)
{
/*
* the thread is aborting
* */
if (_disconnectOnStop)
{
this.Close();
}
}
catch (ObjectDisposedException)
{
/*
* the connection has closed the socket
* */
this.Close();
}
catch (SocketException ex)
{
// if the connection is reset, or a blocking call was cancelled with a call to cancelblockingcall
if (ex.ErrorCode == (int)SocketErrors.WSAECONNRESET ||
ex.ErrorCode == (int)SocketErrors.WSAEINTR)
{
this.Close();
return;
}
// notify that this connection has encountered an exception
this.OnException(this, new ExceptionEventArgs(ex));
}
catch (Exception ex)
{
// notify that this connection has encountered an exception
this.OnException(this, new ExceptionEventArgs(ex));
}
// finally
// {
// Debug.WriteLineIf(!_isServerSideConnection, string.Format("*** exiting receiving thread loop for connection '{0}'", _id.ToString()), MY_TRACE_CATEGORY);
// }
}
