/// <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,
EventHandler<HttpMessageProgressEventArgs> onSendProgress,
EventHandler<HttpMessageProgressEventArgs> onRecvProgress,
object stateObject)
{
try
{
// send the request
this.SendRequest(request, onSendProgress, stateObject);
HttpResponse response = null;
bool recievedContinue = false;
do
{
recievedContinue = false;
lock (_messageReader)
{
// receive a 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));
if (response.Status.Code == HttpStatusCode.Continue)
{
recievedContinue = true;
response = null;
}
}
}
while (recievedContinue);
return response;
}
catch(Exception ex)
{
Debug.WriteLine(ex);
// notify that this connection has encountered an exception
this.OnException(this, new ExceptionEventArgs(ex));
this.Close();
}
return null;
}
/// <summary>
/// Sends the specified response using the connection's socket
/// </summary>
/// <param name="response"></param>
public virtual void SendResponseToRequest(ref HttpRequest request, ref HttpResponse response)
{
try
{
// if the request has asked that the connection be kept-alive, we'll abide by the request
if (HttpUtils.Contains(request.Connection, HttpConnections.KeepAlive))
// so instruct the response to notify the user-agent that the connection will be kept alive
response.Connection = HttpConnections.KeepAlive;
Debug.WriteLineIf(_verbose, "Sending response...", MY_TRACE_CATEGORY);
Debug.WriteIf(_verbose, response.ToString(false));
// lock the writer
lock(_messageWriter)
{
// send the message
_messageWriter.Write(_socket, null, response);
}
// next check the request to see if the connection should be closed after the response was sent
if (HttpUtils.Contains(request.Connection, HttpConnections.Close))
{
// yup, they wanted us to close the connection automatically so lets do that now
this.Close();
return;
}
}
catch(ThreadAbortException)
{
}
catch(Exception ex)
{
this.OnException(this, new ExceptionEventArgs(ex));
// throw new Exception(ex.Message, ex);
}
}
/// <summary>
/// Initializes a new instance of the HttpRequestCancelEventArgs class.
/// </summary>
/// <param name="request"></param>
/// <param name="response"></param>
/// <param name="cancel"></param>
public HttpRequestCancelEventArgs(HttpRequest request, HttpResponse response, bool cancel)
: base((HttpMessage)request, cancel)
{
_response = response;
}
/// <summary>
/// Determines if the request succeeded based on the status code of the response
/// </summary>
/// <param name="response"></param>
/// <returns></returns>
public static bool Succeeded(HttpResponse response)
{
if (response == null)
return false;
if (response.Status.Code == new OkStatus().Code)
return true;
return false;
}
/// <summary>
/// Initializes a new instance of the HttpResponseEventArgs class
/// </summary>
/// <param name="response">The message response context</param>
public HttpResponseEventArgs(HttpResponse response) : base((HttpMessage)response)
{
}
/// <summary>
/// Checks the headers of a response message
/// </summary>
/// <param name="response"></param>
internal protected void CheckRequiredResponseHeaders(HttpResponse response)
{
// make sure the server header is filled in
if (HttpUtils.IsEmptryString(response.Server))
response.Server = new CarbonServerProtocolVersion().ToString();
// if there is no body, or that body is zero length we are finished
if (response.Body == null)
return;
// if the body is zero length no problem
if (response.Body.Length == 0)
return;
// however if there is a body with X length, we must ensure that the response's content-length header is filled in properly
if (response.ContentLength != response.Body.Length)
response.ContentLength = response.Body.Length;
// lastly, warn if we are going to send a response with no content-type, it's just not cool
if (HttpUtils.IsEmptryString(response.ContentType))
Debug.WriteLine(string.Format("The response '{0}' contains a body, but does not contain a valid 'content-type'. Please set the 'content-type' header field, or use the SetBody(XXX) methods of the HttpMessage class when setting the message body.", response.FirstLine), MY_TRACE_CATEGORY);
}
