private static async Task WebSocketMessageReceived(WebSocketContext context, RTCPeerConnection pc, string message)
{
try
{
if (pc.localDescription == null)
{
//logger.LogDebug("Offer SDP: " + message);
logger.LogDebug("Offer SDP received.");
// Add local media tracks depending on what was offered. Also add local tracks with the same media ID as
// the remote tracks so that the media announcement in the SDP answer are in the same order.
SDP remoteSdp = SDP.ParseSDPDescription(message);
pc.setRemoteDescription(new RTCSessionDescriptionInit {
sdp = message, type = RTCSdpType.offer
});
var answer = pc.createAnswer(null);
await pc.setLocalDescription(answer);
context.WebSocket.Send(answer.sdp);
}
else if (pc.remoteDescription == null)
{
logger.LogDebug("Answer SDP: " + message);
pc.setRemoteDescription(new RTCSessionDescriptionInit {
sdp = message, type = RTCSdpType.answer
});
}
else
{
logger.LogDebug("ICE Candidate: " + message);
if (string.IsNullOrWhiteSpace(message) || message.Trim().ToLower() == SDP.END_ICE_CANDIDATES_ATTRIBUTE)
{
logger.LogDebug("End of candidates message received.");
}
else
{
var candInit = Newtonsoft.Json.JsonConvert.DeserializeObject <RTCIceCandidateInit>(message);
pc.addIceCandidate(candInit);
}
}
}
catch (Exception excp)
{
logger.LogError("Exception WebSocketMessageReceived. " + excp.Message);
}
}
public void AddIceCandidate(IceCandidateArgs args)
{
Console.WriteLine("Add ice candidate");
if (args.ConnectionId != ConnectionId)
{
throw new Exception();
}
_peerConnection.addIceCandidate(new RTCIceCandidateInit
{
candidate = args.CandidateDto.Candidate,
sdpMid = args.CandidateDto.SdpMid,
sdpMLineIndex = (ushort)args.CandidateDto.SdpMLineIndex,
usernameFragment = args.CandidateDto.UsernameFragment
});
}
private static void WebSocketMessageReceived(RTCPeerConnection pc, string message)
{
if (pc.remoteDescription == null)
{
logger.LogDebug("Answer SDP: " + message);
pc.setRemoteDescription(new RTCSessionDescriptionInit {
sdp = message, type = RTCSdpType.answer
});
}
else
{
logger.LogDebug("ICE Candidate: " + message);
pc.addIceCandidate(new RTCIceCandidateInit {
candidate = message
});
}
}
private static async Task WebSocketMessageReceived(RTCPeerConnection peerConnection, string message)
{
try
{
if (peerConnection.remoteDescription == null)
{
logger.LogDebug("Answer SDP: " + message);
await peerConnection.setRemoteDescription(new RTCSessionDescriptionInit { sdp = message, type = RTCSdpType.answer });
}
else
{
logger.LogDebug("ICE Candidate: " + message);
await peerConnection.addIceCandidate(new RTCIceCandidateInit { candidate = message });
}
}
catch (Exception excp)
{
logger.LogError("Exception WebSocketMessageReceived. " + excp.Message);
}
}
private void DoProcessMessage(Message message)
{
switch (message.type)
{
case "Offer":
// var offer = JsonUtility.FromJson<RTCSessionDescriptionInit>(message.args);
if (RTCSessionDescriptionInit.TryParse(message.args, out RTCSessionDescriptionInit offer))
{
Debug.Log($"Got remote SDP, type {offer.type}");
var result = rtcPeerConnection.setRemoteDescription(offer);
if (result != SetDescriptionResultEnum.OK)
{
Debug.Log($"Failed to set remote description, {result}.");
rtcPeerConnection.Close("Failed to set remote description");
}
else
{
if (rtcPeerConnection.signalingState == RTCSignalingState.have_remote_offer)
{
var answerSdp = rtcPeerConnection.createAnswer();
rtcPeerConnection.setLocalDescription(answerSdp);
Debug.Log($"Sending SDP answer");
Send("Offer", answerSdp.toJSON());
}
}
}
break;
case "IceCandidate":
if (RTCIceCandidateInit.TryParse(message.args, out RTCIceCandidateInit candidate))
{
Debug.Log($"Got remote Ice Candidate, uri {candidate.candidate}");
rtcPeerConnection.addIceCandidate(candidate);
}
break;
}
}
private static async Task WebSocketMessageReceived(WebSocketContext context, RTCPeerConnection pc, string message)
{
try
{
if (pc.localDescription == null)
{
//logger.LogDebug("Offer SDP: " + message);
logger.LogDebug("Offer SDP received.");
// Add local media tracks depending on what was offered. Also add local tracks with the same media ID as
// the remote tracks so that the media announcement in the SDP answer are in the same order.
SDP remoteSdp = SDP.ParseSDPDescription(message);
foreach (var ann in remoteSdp.Media)
{
MediaStreamTrack track = new MediaStreamTrack(ann.Media, false, ann.MediaFormats.Values.ToList(), MediaStreamStatusEnum.RecvOnly);
pc.addTrack(track);
}
pc.setRemoteDescription(new RTCSessionDescriptionInit {
sdp = message, type = RTCSdpType.offer
});
var answer = pc.createAnswer(null);
await pc.setLocalDescription(answer);
Console.WriteLine(answer.sdp);
context.WebSocket.Send(answer.sdp);
}
else if (pc.remoteDescription == null)
{
logger.LogDebug("Answer SDP: " + message);
var result = pc.setRemoteDescription(new RTCSessionDescriptionInit {
sdp = message, type = RTCSdpType.answer
});
if (result != SetDescriptionResultEnum.OK)
{
logger.LogWarning($"Failed to set remote description {result}.");
}
}
else
{
logger.LogDebug("ICE Candidate: " + message);
if (string.IsNullOrWhiteSpace(message) || message.Trim().ToLower() == SDP.END_ICE_CANDIDATES_ATTRIBUTE)
{
logger.LogDebug("End of candidates message received.");
}
else
{
var candInit = Newtonsoft.Json.JsonConvert.DeserializeObject <RTCIceCandidateInit>(message);
pc.addIceCandidate(candInit);
}
}
}
catch (Exception excp)
{
logger.LogError("Exception WebSocketMessageReceived. " + excp.Message);
}
}
private static async Task WebSocketMessageReceived(WebSocketContext context, RTCPeerConnection pc, string message)
{
try
{
if (pc.localDescription == null)
{
//logger.LogDebug("Offer SDP: " + message);
logger.LogDebug("Offer SDP received.");
// Add local media tracks depending on what was offered. Also add local tracks with the same media ID as
// the remote tracks so that the media announcement in the SDP answer are in the same order.
var offerInit = JsonConvert.DeserializeObject <RTCSessionDescriptionInit>(message, new Newtonsoft.Json.Converters.StringEnumConverter());
logger.LogDebug(SDP.ParseSDPDescription(offerInit.sdp).ToString());
var res = pc.setRemoteDescription(offerInit);
if (res != SetDescriptionResultEnum.OK)
{
// No point continuing. Something will need to change and then try again.
pc.Close("failed to set remote sdp");
}
else
{
var answer = pc.createAnswer(_answerOptions);
await pc.setLocalDescription(answer);
context.WebSocket.Send(JsonConvert.SerializeObject(answer, new Newtonsoft.Json.Converters.StringEnumConverter()));
}
}
else if (pc.remoteDescription == null)
{
logger.LogDebug("Answer SDP received:");
var answerInit = JsonConvert.DeserializeObject <RTCSessionDescriptionInit>(message, new Newtonsoft.Json.Converters.StringEnumConverter());
logger.LogDebug(SDP.ParseSDPDescription(answerInit.sdp).ToString());
var res = pc.setRemoteDescription(answerInit);
if (res != SetDescriptionResultEnum.OK)
{
// No point continuing. Something will need to change and then try again.
pc.Close("failed to set remote sdp");
}
}
else
{
logger.LogDebug("ICE Candidate: " + message);
if (string.IsNullOrWhiteSpace(message) || message.Trim().ToLower() == SDP.END_ICE_CANDIDATES_ATTRIBUTE)
{
logger.LogDebug("End of candidates message received.");
}
else
{
var candInit = Newtonsoft.Json.JsonConvert.DeserializeObject <RTCIceCandidateInit>(message);
if (_acceptIceTypes.Count > 0 && !_acceptIceTypes.Any(x => x == RTCIceCandidate.Parse(candInit.candidate).type))
{
logger.LogDebug($"Ignoring remote ICE candidate as type not in accept list.");
}
else
{
pc.addIceCandidate(candInit);
}
}
}
}
catch (Exception excp)
{
logger.LogError("Exception WebSocketMessageReceived. " + excp.Message);
}
}
/// <summary>
/// This is a javascript application.
/// </summary>
/// <param name="page">HTML document rendered by the web server which can now be enhanced.</param>
public Application(IApp page)
{
// https://developer.mozilla.org/en-US/docs/Web/API/RTCPeerConnection
// https://github.com/cjb/serverless-webrtc
// https://github.com/XSockets/WebRTC
// jsc when was the last time we tried p2p?
// var peer = new PeerConnection(iceServers, optional); where iceServers = null this is working without internet
// http://stackoverflow.com/questions/19675165/whether-stun-server-is-needed-within-lan-for-webrtc
//var peer = new PeerConnection(iceServers, optional);
// https://www.webrtc-experiment.com/docs/WebRTC-PeerConnection.html
// http://stackoverflow.com/questions/12848013/what-is-the-replacement-for-the-deprecated-peerconnection-api
// http://docs.webplatform.org/wiki/apis/webrtc/RTCPeerConnection
// http://w3schools.invisionzone.com/index.php?showtopic=46661
// http://www.html5rocks.com/en/tutorials/webrtc/basics/#toc-rtcpeerconnection
// IDL dictionary looks like C# PrimaryCnstructor concept does it not
////var d = new RTCSessionDescription(
//// new
////{
////}
////);
// 02000002 TestPeerConnection.Application
// script: error JSC1000: You tried to instance a class which seems to be marked as native.
// script: error JSC1000: type has no callable constructor: [ScriptCoreLib.JavaScript.DOM.RTCPeerConnection]
//Void.ctor()
// Uncaught ReferenceError: RTCPeerConnection is not defined
// wtf?
// {{ RTCPeerConnection = undefined }}
//new IHTMLPre { new { w.RTCPeerConnection } }.AttachToDocument();
// {{ webkitRTCPeerConnection = function RTCPeerConnection() { [native code] } }}
//new IHTMLPre { new { w.webkitRTCPeerConnection } }.AttachToDocument();
// wtf chrome? stop prefixing
var w = Native.window as dynamic;
Console.WriteLine(new { w.RTCPeerConnection });
w.RTCPeerConnection = w.webkitRTCPeerConnection;
// Uncaught TypeError: Failed to construct 'RTCPeerConnection': 1 argument required, but only 0 present.
// http://stackoverflow.com/questions/22470291/rtcdatachannels-readystate-is-not-open
// after Chrome 31, you can use SCTP based data channels.
// http://stackoverflow.com/questions/21585681/send-image-data-over-rtc-data-channel
// https://code.google.com/p/chromium/issues/detail?id=295771
// https://gist.github.com/shacharz/9661930
// http://chimera.labs.oreilly.com/books/1230000000545/ch18.html#_tracking_ice_gathering_and_connectivity_status
var peer = new RTCPeerConnection(
new { iceServers = new object[0] },
null
// https://groups.google.com/forum/#!topic/discuss-webrtc/y2A97iCByTU
//constraints: new {
// optional = new[]
// {
// new { RtpDataChannels = true }
// }
//}
);
// how the hell cann I connect two p2p?
// i see we need to do data
//peer.setLocalDescription
// https://groups.google.com/forum/#!topic/discuss-webrtc/zK_5yUqiqsE
// X:\jsc.svn\examples\javascript\xml\VBDisplayServerDebuggerPresence\VBDisplayServerDebuggerPresence\ApplicationWebService.vb
// https://code.google.com/p/webrtc/source/browse/trunk/samples/js/base/adapter.js
// http://www.webrtc.org/faq-recent-topics
// http://stackoverflow.com/questions/14134090/how-is-a-webrtc-peer-connection-established
peer.onicecandidate = new Action <RTCPeerConnectionIceEvent>(
(RTCPeerConnectionIceEvent e) =>
{
if (e.candidate != null)
{
new IHTMLPre {
"onicecandidate: " + new { e.candidate.candidate }
}.AttachToDocument();
peer.addIceCandidate(e.candidate,
new Action(
delegate
{
new IHTMLPre {
"addIceCandidate"
}.AttachToDocument();
}
));
}
}
);
// http://stackoverflow.com/questions/15484729/why-doesnt-onicecandidate-work
// http://www.skylinetechnologies.com/Blog/Article/48/Peer-to-Peer-Media-Streaming-with-WebRTC-and-SignalR.aspx
peer.createOffer(
new Action <RTCSessionDescription>(
(RTCSessionDescription x) =>
{
new IHTMLPre {
"after createOffer " + new { x.sdp }
}.AttachToDocument();
peer.setLocalDescription(x,
new Action(
delegate
{
// // send the offer to a server that can negotiate with a remote client
new IHTMLPre {
"after setLocalDescription "
}.AttachToDocument();
}
)
);
peer.setRemoteDescription(x,
new Action(
delegate
{
// // send the offer to a server that can negotiate with a remote client
new IHTMLPre {
"after setRemoteDescription "
}.AttachToDocument();
}
)
);
}
)
);
peer.createAnswer(
new Action <RTCSessionDescription>(
(RTCSessionDescription x) =>
{
new IHTMLPre {
"after createAnswer " + new { x.sdp }
}.AttachToDocument();
}
));
// https://groups.google.com/forum/#!topic/discuss-webrtc/wbcgYMrIii4
// https://groups.google.com/forum/#!msg/discuss-webrtc/wbcgYMrIii4/aZ12cENVTxEJ
// http://blog.printf.net/articles/2013/05/17/webrtc-without-a-signaling-server/
//peer.onconn
// https://github.com/cjb/serverless-webrtc/blob/master/js/serverless-webrtc.js
peer.ondatachannel = new Action <RTCDataChannelEvent>(
(RTCDataChannelEvent e) =>
{
//Console.WriteLine("ondatachannel");
new IHTMLPre {
"ondatachannel"
}.AttachToDocument();
var c = e.channel;
c.onmessage = new Action <MessageEvent>(
(MessageEvent ee) =>
{
new IHTMLPre {
new { ee.data }
}.AttachToDocument();
}
);
}
);
// jsc cant the idl generator understand optinal?
RTCDataChannel dc = peer.createDataChannel("label1", null);
// {{ id = 65535, label = label1, readyState = connecting }}
new IHTMLPre {
new { dc.id, dc.label, dc.readyState }
}.AttachToDocument();
new IHTMLButton {
"awaiting to open..."
}.AttachToDocument().With(
button =>
{
// !!! can our IDL compiler generate events and async at the same time?
dc.onopen = new Action <IEvent>(
async ee =>
{
button.innerText = "send";
while (true)
{
await button.async.onclick;
new IHTMLPre {
"send"
}.AttachToDocument();
// Failed to execute 'send' on 'RTCDataChannel': RTCDataChannel.readyState is not 'open'
dc.send("data to send");
}
}
);
}
);
//connection.createOffer
}
