protected virtual void OnVolumeRequested(VolumeRequestedEventArgs e)
{
if (VolumeRequested != null)
{
VolumeRequested(this, e);
}
}
protected override HttpResponse HandleRequest(HttpRequest request)
{
HttpResponse response = new HttpResponse("RTSP/1.0");
//iTunes wants to know we are legit before it will even authenticate
string challengeResponse = getChallengeResponse(request);
if (challengeResponse != null)
{
response.SetHeader("Apple-Response", challengeResponse);
}
if (IsAuthorised(request))
{
response.Status = "200 OK";
response.SetHeader("Audio-Jack-Status", "connected; type=analog");
response.SetHeader("CSeq", request.GetHeader("CSeq"));
}
else
{
response.Status = "401 UNAUTHORIZED";
response.SetHeader("WWW-Authenticate", string.Format("Digest realm=\"{0}\" nonce=\"{1}\"", DIGEST_REALM, nonce));
response.SetHeader("Method", "DENIED");
return(response);
}
string requestType = request.Method;
if (requestType == "OPTIONS")
{
response.SetHeader("Public", "ANNOUNCE, SETUP, RECORD, PAUSE, FLUSH, TEARDOWN, OPTIONS, GET_PARAMETER, SET_PARAMETER");
}
else if (requestType == "ANNOUNCE")
{
initRemoteHandler(request);
getSessionParams(request);
}
else if (requestType == "SETUP")
{
int port;
if (setupAudioServer(request, out port))
{
response.SetHeader("Transport", string.Format("RTP/AVP/UDP;unicast;mode=record;x-events;server_port={0};control_port={0};timing_port={0}", port));
response.SetHeader("Session", "1");
}
}
else if (requestType == "RECORD")
{
// Headers
// Range: ntp=0-
// RTP-Info: seq={Note 1};rtptime={Note 2}
// Note 1: Initial value for the RTP Sequence Number, random 16 bit value
// Note 2: Initial value for the RTP Timestamps, random 32 bit value
response.SetHeader("Audio-Latency", "44100");
}
else if (requestType == "FLUSH")
{
lock (audioServerLock)
if (audioServer != null)
{
audioServer.Buffer.Flush();
}
}
else if (requestType == "TEARDOWN")
{
Logger.Debug("RAOPSession: TEARDOWN received");
response.SetHeader("Connection", "close");
}
else if (requestType == "SET_PARAMETER")
{
string contentType = request.GetHeader("Content-Type");
if (contentType == null)
{
Logger.Debug("RAOPSession: Empty Content-Type\r\n{0}", request.ToString());
}
if (contentType == "application/x-dmap-tagged")
{
Logger.Debug("RAOPSession: Received metadata");
OnMetaDataChanged(new MetaDataChangedEventArgs(new DmapData(request.Content), request.Uri));
}
else if (contentType != null && contentType.StartsWith("image/"))
{
Logger.Debug("RAOPSession: Received cover art");
OnArtworkChanged(new ArtwokChangedEventArgs(request.Content, contentType, request.Uri));
}
else
{
handleParameterString(request);
}
}
else if (requestType == "GET_PARAMETER")
{
bool handled = false;
if (request["Content-Type"] == "text/parameters")
{
if (request.GetContentString().StartsWith("volume"))
{
handled = true;
Logger.Debug("RAOPSession: Client requested volume");
VolumeRequestedEventArgs e = new VolumeRequestedEventArgs(request.Uri);
OnVolumeRequested(e);
response["Content-Type"] = "text/parameters";
response.SetContent(string.Format(CultureInfo.InvariantCulture, "volume: {0}", e.Volume));
}
}
if (!handled)
{
Logger.Debug("Unhandled GET_PARAMETER request\r\n{0}", request.ToString());
}
}
else
{
//Unsupported
Logger.Debug("RAOPSession: Unsupported request type: {0}", requestType);
Logger.Debug(request.ToString());
}
return(response);
}