780 lines
24 KiB
JavaScript
780 lines
24 KiB
JavaScript
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"use strict";
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/*
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This is the backend for voice channels and LAN servers in eaglercraft
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it links with TeaVM EaglerAdapter at runtime
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Copyright 2022 ayunami2000 & lax1dude. All rights reserved.
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*/
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%% VOICE CODE %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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window.initializeVoiceClient = (() => {
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const READYSTATE_NONE = 0;
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const READYSTATE_ABORTED = -1;
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const READYSTATE_DEVICE_INITIALIZED = 1;
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const PEERSTATE_FAILED = 0;
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const PEERSTATE_SUCCESS = 1;
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const PEERSTATE_LOADING = 2;
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class EaglercraftVoicePeer {
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constructor(client, peerId, peerConnection, offer) {
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this.client = client;
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this.peerId = peerId;
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this.peerConnection = peerConnection;
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this.stream = null;
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const self = this;
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this.peerConnection.addEventListener("icecandidate", (evt) => {
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if(evt.candidate) {
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self.client.iceCandidateHandler(self.peerId, JSON.stringify({ sdpMLineIndex: evt.candidate.sdpMLineIndex, candidate: evt.candidate.candidate }));
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}
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});
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this.peerConnection.addEventListener("track", (evt) => {
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self.rawStream = evt.streams[0];
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const aud = new Audio();
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aud.autoplay = true;
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aud.muted = true;
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aud.onended = function() {
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aud.remove();
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};
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aud.srcObject = self.rawStream;
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self.client.peerTrackHandler(self.peerId, self.rawStream);
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});
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this.peerConnection.addStream(this.client.localMediaStream.stream);
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if (offer) {
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this.peerConnection.createOffer((desc) => {
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const selfDesc = desc;
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self.peerConnection.setLocalDescription(selfDesc, () => {
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self.client.descriptionHandler(self.peerId, JSON.stringify(selfDesc));
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if (self.client.peerStateInitial != PEERSTATE_SUCCESS) self.client.peerStateInitial = PEERSTATE_SUCCESS;
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}, (err) => {
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console.error("Failed to set local description for \"" + self.peerId + "\"! " + err);
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if (self.client.peerStateInitial == PEERSTATE_LOADING) self.client.peerStateInitial = PEERSTATE_FAILED;
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self.client.signalDisconnect(self.peerId);
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});
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}, (err) => {
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console.error("Failed to set create offer for \"" + self.peerId + "\"! " + err);
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if (self.client.peerStateInitial == PEERSTATE_LOADING) self.client.peerStateInitial = PEERSTATE_FAILED;
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self.client.signalDisconnect(self.peerId);
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});
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}
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this.peerConnection.addEventListener("connectionstatechange", (evt) => {
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if(self.peerConnection.connectionState === 'disconnected') {
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self.client.signalDisconnect(self.peerId);
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} else if (self.peerConnection.connectionState === 'connected') {
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if (self.client.peerState != PEERSTATE_SUCCESS) self.client.peerState = PEERSTATE_SUCCESS;
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} else if (self.peerConnection.connectionState === 'failed') {
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if (self.client.peerState == PEERSTATE_LOADING) self.client.peerState = PEERSTATE_FAILED;
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self.client.signalDisconnect(self.peerId);
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}
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});
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}
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disconnect() {
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this.peerConnection.close();
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}
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mute(muted) {
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this.rawStream.getAudioTracks()[0].enabled = !muted;
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}
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setRemoteDescription(descJSON) {
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const self = this;
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try {
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const remoteDesc = JSON.parse(descJSON);
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this.peerConnection.setRemoteDescription(remoteDesc, () => {
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if(remoteDesc.type == 'offer') {
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self.peerConnection.createAnswer((desc) => {
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const selfDesc = desc;
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self.peerConnection.setLocalDescription(selfDesc, () => {
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self.client.descriptionHandler(self.peerId, JSON.stringify(selfDesc));
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if (self.client.peerStateDesc != PEERSTATE_SUCCESS) self.client.peerStateDesc = PEERSTATE_SUCCESS;
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}, (err) => {
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console.error("Failed to set local description for \"" + self.peerId + "\"! " + err);
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if (self.client.peerStateDesc == PEERSTATE_LOADING) self.client.peerStateDesc = PEERSTATE_FAILED;
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self.client.signalDisconnect(self.peerId);
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});
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}, (err) => {
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console.error("Failed to create answer for \"" + self.peerId + "\"! " + err);
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if (self.client.peerStateDesc == PEERSTATE_LOADING) self.client.peerStateDesc = PEERSTATE_FAILED;
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self.client.signalDisconnect(self.peerId);
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});
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}
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}, (err) => {
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console.error("Failed to set remote description for \"" + self.peerId + "\"! " + err);
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if (self.client.peerStateDesc == PEERSTATE_LOADING) self.client.peerStateDesc = PEERSTATE_FAILED;
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self.client.signalDisconnect(self.peerId);
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});
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} catch (err) {
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console.error("Failed to parse remote description for \"" + self.peerId + "\"! " + err);
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if (self.client.peerStateDesc == PEERSTATE_LOADING) self.client.peerStateDesc = PEERSTATE_FAILED;
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self.client.signalDisconnect(self.peerId);
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}
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}
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addICECandidate(candidate) {
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try {
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this.peerConnection.addIceCandidate(new RTCIceCandidate(JSON.parse(candidate)));
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if (this.client.peerStateIce != PEERSTATE_SUCCESS) this.client.peerStateIce = PEERSTATE_SUCCESS;
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} catch (err) {
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console.error("Failed to parse ice candidate for \"" + this.peerId + "\"! " + err);
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if (this.client.peerStateIce == PEERSTATE_LOADING) this.client.peerStateIce = PEERSTATE_FAILED;
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this.client.signalDisconnect(this.peerId);
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}
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}
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}
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class EaglercraftVoiceClient {
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constructor() {
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this.ICEServers = [];
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this.hasInit = false;
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this.peerList = new Map();
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this.readyState = READYSTATE_NONE;
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this.peerState = PEERSTATE_LOADING;
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this.peerStateConnect = PEERSTATE_LOADING;
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this.peerStateInitial = PEERSTATE_LOADING;
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this.peerStateDesc = PEERSTATE_LOADING;
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this.peerStateIce = PEERSTATE_LOADING;
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this.iceCandidateHandler = null;
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this.descriptionHandler = null;
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this.peerTrackHandler = null;
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this.peerDisconnectHandler = null;
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this.microphoneVolumeAudioContext = null;
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}
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voiceClientSupported() {
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return typeof window.RTCPeerConnection !== "undefined" && typeof navigator.mediaDevices !== "undefined" &&
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typeof navigator.mediaDevices.getUserMedia !== "undefined";
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}
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setICEServers(urls) {
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this.ICEServers.length = 0;
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for(var i = 0; i < urls.length; ++i) {
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var etr = urls[i].split(";");
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if(etr.length == 1) {
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this.ICEServers.push({ urls: etr[0] });
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}else if(etr.length == 3) {
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this.ICEServers.push({ urls: etr[0], username: etr[1], credential: etr[2] });
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}
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}
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}
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setICECandidateHandler(cb) {
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this.iceCandidateHandler = cb;
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}
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setDescriptionHandler(cb) {
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this.descriptionHandler = cb;
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}
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setPeerTrackHandler(cb) {
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this.peerTrackHandler = cb;
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}
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setPeerDisconnectHandler(cb) {
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this.peerDisconnectHandler = cb;
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}
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activateVoice(tk) {
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if(this.hasInit) this.localRawMediaStream.getAudioTracks()[0].enabled = tk;
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}
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initializeDevices() {
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if(!this.hasInit) {
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const self = this;
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navigator.mediaDevices.getUserMedia({ audio: true, video: false }).then((stream) => {
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self.microphoneVolumeAudioContext = new AudioContext();
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self.localRawMediaStream = stream;
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self.localRawMediaStream.getAudioTracks()[0].enabled = false;
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self.localMediaStream = self.microphoneVolumeAudioContext.createMediaStreamDestination();
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self.localMediaStreamGain = self.microphoneVolumeAudioContext.createGain();
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var localStreamIn = self.microphoneVolumeAudioContext.createMediaStreamSource(stream);
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localStreamIn.connect(self.localMediaStreamGain);
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self.localMediaStreamGain.connect(self.localMediaStream);
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self.localMediaStreamGain.gain.value = 1.0;
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self.readyState = READYSTATE_DEVICE_INITIALIZED;
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this.hasInit = true;
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}).catch((err) => {
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self.readyState = READYSTATE_ABORTED;
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});
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}else {
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this.readyState = READYSTATE_DEVICE_INITIALIZED;
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}
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}
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setMicVolume(val) {
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if(this.hasInit) {
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if(val > 0.5) val = 0.5 + (val - 0.5) * 2.0;
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if(val > 1.5) val = 1.5;
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if(val < 0.0) val = 0.0;
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this.localMediaStreamGain.gain.value = val * 2.0;
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}
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}
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resetPeerStates() {
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this.peerState = this.peerStateConnect = this.peerStateInitial = this.peerStateDesc = this.peerStateIce = PEERSTATE_LOADING;
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}
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getPeerState() {
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return this.peerState;
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}
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getPeerStateConnect() {
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return this.peerStateConnect;
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}
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getPeerStateInitial() {
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return this.peerStateInitial;
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}
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getPeerStateDesc() {
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return this.peerStateDesc;
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}
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getPeerStateIce() {
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return this.peerStateIce;
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}
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getReadyState() {
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return this.readyState;
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}
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signalConnect(peerId, offer) {
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if (!this.hasInit) this.initializeDevices();
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try {
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const peerConnection = new RTCPeerConnection({ iceServers: this.ICEServers, optional: [ { DtlsSrtpKeyAgreement: true } ] });
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const peerInstance = new EaglercraftVoicePeer(this, peerId, peerConnection, offer);
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this.peerList.set(peerId, peerInstance);
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if (this.peerStateConnect != PEERSTATE_SUCCESS) this.peerStateConnect = PEERSTATE_SUCCESS;
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} catch (e) {
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if (this.peerStateConnect == PEERSTATE_LOADING) this.peerStateConnect = PEERSTATE_FAILED;
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}
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}
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signalDescription(peerId, descJSON) {
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var thePeer = this.peerList.get(peerId);
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if((typeof thePeer !== "undefined") && thePeer !== null) {
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thePeer.setRemoteDescription(descJSON);
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}
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}
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signalDisconnect(peerId, quiet) {
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var thePeer = this.peerList.get(peerId);
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if((typeof thePeer !== "undefined") && thePeer !== null) {
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this.peerList.delete(thePeer);
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try {
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thePeer.disconnect();
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}catch(e) {}
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this.peerDisconnectHandler(peerId, quiet);
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}
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}
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mutePeer(peerId, muted) {
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var thePeer = this.peerList.get(peerId);
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if((typeof thePeer !== "undefined") && thePeer !== null) {
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thePeer.mute(muted);
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}
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}
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signalICECandidate(peerId, candidate) {
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var thePeer = this.peerList.get(peerId);
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if((typeof thePeer !== "undefined") && thePeer !== null) {
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thePeer.addICECandidate(candidate);
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}
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}
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}
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window.constructVoiceClient = () => new EaglercraftVoiceClient();
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});
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window.startVoiceClient = () => {
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if(typeof window.constructVoiceClient !== "function") {
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window.initializeVoiceClient();
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}
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return window.constructVoiceClient();
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};
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%% LAN CLIENT CODE %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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window.initializeLANClient = (() => {
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const READYSTATE_INIT_FAILED = -2;
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const READYSTATE_FAILED = -1;
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const READYSTATE_DISCONNECTED = 0;
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const READYSTATE_CONNECTING = 1;
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const READYSTATE_CONNECTED = 2;
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class EaglercraftLANClient {
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constructor() {
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this.ICEServers = [];
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this.peerConnection = null;
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this.dataChannel = null;
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this.readyState = READYSTATE_CONNECTING;
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this.iceCandidateHandler = null;
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this.descriptionHandler = null;
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this.remoteDataChannelHandler = null;
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this.remoteDisconnectHandler = null;
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this.remotePacketHandler = null;
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}
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LANClientSupported() {
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return typeof window.RTCPeerConnection !== "undefined";
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}
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initializeClient() {
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try {
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if(this.dataChannel != null) {
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this.dataChannel.close();
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this.dataChannel = null;
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}
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if(this.peerConnection != null) {
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this.peerConnection.close();
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}
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this.peerConnection = new RTCPeerConnection({ iceServers: this.ICEServers, optional: [ { DtlsSrtpKeyAgreement: true } ] });
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this.readyState = READYSTATE_CONNECTING;
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} catch (e) {
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this.readyState = READYSTATE_INIT_FAILED;
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}
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}
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setICEServers(urls) {
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this.ICEServers.length = 0;
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for(var i = 0; i < urls.length; ++i) {
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var etr = urls[i].split(";");
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if(etr.length == 1) {
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this.ICEServers.push({ urls: etr[0] });
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}else if(etr.length == 3) {
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this.ICEServers.push({ urls: etr[0], username: etr[1], credential: etr[2] });
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}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
setICECandidateHandler(cb) {
|
||
|
|
this.iceCandidateHandler = cb;
|
||
|
|
}
|
||
|
|
|
||
|
|
setDescriptionHandler(cb) {
|
||
|
|
this.descriptionHandler = cb;
|
||
|
|
}
|
||
|
|
|
||
|
|
setRemoteDataChannelHandler(cb) {
|
||
|
|
this.remoteDataChannelHandler = cb;
|
||
|
|
}
|
||
|
|
|
||
|
|
setRemoteDisconnectHandler(cb) {
|
||
|
|
this.remoteDisconnectHandler = cb;
|
||
|
|
}
|
||
|
|
|
||
|
|
setRemotePacketHandler(cb) {
|
||
|
|
this.remotePacketHandler = cb;
|
||
|
|
}
|
||
|
|
|
||
|
|
getReadyState() {
|
||
|
|
return this.readyState;
|
||
|
|
}
|
||
|
|
|
||
|
|
sendPacketToServer(buffer) {
|
||
|
|
if(this.dataChannel != null && this.dataChannel.readyState == "open") {
|
||
|
|
this.dataChannel.send(buffer);
|
||
|
|
}else {
|
||
|
|
this.signalRemoteDisconnect(false);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
signalRemoteConnect() {
|
||
|
|
const self = this;
|
||
|
|
|
||
|
|
const iceCandidates = [];
|
||
|
|
|
||
|
|
this.peerConnection.addEventListener("icecandidate", (evt) => {
|
||
|
|
if(evt.candidate) {
|
||
|
|
if(iceCandidates.length == 0) setTimeout(() => {
|
||
|
|
if(self.peerConnection != null && self.peerConnection.connectionState != "disconnected") {
|
||
|
|
self.iceCandidateHandler(JSON.stringify(iceCandidates));
|
||
|
|
iceCandidates.length = 0;
|
||
|
|
}
|
||
|
|
}, 3000);
|
||
|
|
iceCandidates.push({ sdpMLineIndex: evt.candidate.sdpMLineIndex, candidate: evt.candidate.candidate });
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
this.dataChannel = this.peerConnection.createDataChannel("lan");
|
||
|
|
this.dataChannel.binaryType = "arraybuffer";
|
||
|
|
|
||
|
|
this.dataChannel.addEventListener("open", async (evt) => {
|
||
|
|
while(iceCandidates.length > 0) {
|
||
|
|
await new Promise(resolve => setTimeout(resolve, 0));
|
||
|
|
}
|
||
|
|
self.remoteDataChannelHandler(self.dataChannel);
|
||
|
|
});
|
||
|
|
|
||
|
|
this.dataChannel.addEventListener("message", (evt) => {
|
||
|
|
self.remotePacketHandler(evt.data);
|
||
|
|
}, false);
|
||
|
|
|
||
|
|
this.peerConnection.createOffer((desc) => {
|
||
|
|
const selfDesc = desc;
|
||
|
|
self.peerConnection.setLocalDescription(selfDesc, () => {
|
||
|
|
self.descriptionHandler(JSON.stringify(selfDesc));
|
||
|
|
}, (err) => {
|
||
|
|
console.error("Failed to set local description! " + err);
|
||
|
|
self.readyState = READYSTATE_FAILED;
|
||
|
|
self.signalRemoteDisconnect(false);
|
||
|
|
});
|
||
|
|
}, (err) => {
|
||
|
|
console.error("Failed to set create offer! " + err);
|
||
|
|
self.readyState = READYSTATE_FAILED;
|
||
|
|
self.signalRemoteDisconnect(false);
|
||
|
|
});
|
||
|
|
|
||
|
|
this.peerConnection.addEventListener("connectionstatechange", (evt) => {
|
||
|
|
if(self.peerConnection.connectionState === 'disconnected') {
|
||
|
|
self.signalRemoteDisconnect(false);
|
||
|
|
} else if (self.peerConnection.connectionState === 'connected') {
|
||
|
|
self.readyState = READYSTATE_CONNECTED;
|
||
|
|
} else if (self.peerConnection.connectionState === 'failed') {
|
||
|
|
self.readyState = READYSTATE_FAILED;
|
||
|
|
self.signalRemoteDisconnect(false);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
signalRemoteDescription(descJSON) {
|
||
|
|
try {
|
||
|
|
this.peerConnection.setRemoteDescription(JSON.parse(descJSON));
|
||
|
|
} catch (e) {
|
||
|
|
console.error(e);
|
||
|
|
this.readyState = READYSTATE_FAILED;
|
||
|
|
this.signalRemoteDisconnect(false);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
signalRemoteICECandidate(candidates) {
|
||
|
|
try {
|
||
|
|
const candidateList = JSON.parse(candidates);
|
||
|
|
for (let candidate of candidateList) {
|
||
|
|
this.peerConnection.addIceCandidate(candidate);
|
||
|
|
}
|
||
|
|
} catch (e) {
|
||
|
|
console.error(e);
|
||
|
|
this.readyState = READYSTATE_FAILED;
|
||
|
|
this.signalRemoteDisconnect(false);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
signalRemoteDisconnect(quiet) {
|
||
|
|
if(this.dataChannel != null) {
|
||
|
|
this.dataChannel.close();
|
||
|
|
this.dataChannel = null;
|
||
|
|
}
|
||
|
|
if(this.peerConnection != null) {
|
||
|
|
this.peerConnection.close();
|
||
|
|
}
|
||
|
|
if(!quiet) this.remoteDisconnectHandler();
|
||
|
|
this.readyState = READYSTATE_DISCONNECTED;
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
window.constructLANClient = () => new EaglercraftLANClient();
|
||
|
|
});
|
||
|
|
|
||
|
|
window.startLANClient = () => {
|
||
|
|
if(typeof window.constructLANClient !== "function") {
|
||
|
|
window.initializeLANClient();
|
||
|
|
}
|
||
|
|
return window.constructLANClient();
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%% LAN SERVER CODE %%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
|
|
|
||
|
|
window.initializeLANServer = (() => {
|
||
|
|
|
||
|
|
const PEERSTATE_FAILED = 0;
|
||
|
|
const PEERSTATE_SUCCESS = 1;
|
||
|
|
const PEERSTATE_LOADING = 2;
|
||
|
|
|
||
|
|
class EaglercraftLANPeer {
|
||
|
|
|
||
|
|
constructor(client, peerId, peerConnection) {
|
||
|
|
this.client = client;
|
||
|
|
this.peerId = peerId;
|
||
|
|
this.peerConnection = peerConnection;
|
||
|
|
this.dataChannel = null;
|
||
|
|
|
||
|
|
const self = this;
|
||
|
|
|
||
|
|
const iceCandidates = [];
|
||
|
|
|
||
|
|
this.peerConnection.addEventListener("icecandidate", (evt) => {
|
||
|
|
if(evt.candidate) {
|
||
|
|
if(iceCandidates.length == 0) setTimeout(() => {
|
||
|
|
if(self.peerConnection != null && self.peerConnection.connectionState != "disconnected") {
|
||
|
|
self.client.iceCandidateHandler(self.peerId, JSON.stringify(iceCandidates));
|
||
|
|
iceCandidates.length = 0;
|
||
|
|
}
|
||
|
|
}, 3000);
|
||
|
|
iceCandidates.push({ sdpMLineIndex: evt.candidate.sdpMLineIndex, candidate: evt.candidate.candidate });
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
this.peerConnection.addEventListener("datachannel", async (evt) => {
|
||
|
|
while(iceCandidates.length > 0) {
|
||
|
|
await new Promise(resolve => setTimeout(resolve, 0));
|
||
|
|
}
|
||
|
|
self.dataChannel = evt.channel;
|
||
|
|
self.client.remoteClientDataChannelHandler(self.peerId, self.dataChannel);
|
||
|
|
self.dataChannel.addEventListener("message", (evt) => {
|
||
|
|
self.client.remoteClientPacketHandler(self.peerId, evt.data);
|
||
|
|
}, false);
|
||
|
|
}, false);
|
||
|
|
|
||
|
|
this.peerConnection.addEventListener("connectionstatechange", (evt) => {
|
||
|
|
if(self.peerConnection.connectionState === 'disconnected') {
|
||
|
|
self.client.signalRemoteDisconnect(self.peerId);
|
||
|
|
} else if (self.peerConnection.connectionState === 'connected') {
|
||
|
|
if (self.client.peerState != PEERSTATE_SUCCESS) self.client.peerState = PEERSTATE_SUCCESS;
|
||
|
|
} else if (self.peerConnection.connectionState === 'failed') {
|
||
|
|
if (self.client.peerState == PEERSTATE_LOADING) self.client.peerState = PEERSTATE_FAILED;
|
||
|
|
self.client.signalRemoteDisconnect(self.peerId);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
disconnect() {
|
||
|
|
if(this.dataChannel != null) {
|
||
|
|
this.dataChannel.close();
|
||
|
|
this.dataChannel = null;
|
||
|
|
}
|
||
|
|
this.peerConnection.close();
|
||
|
|
}
|
||
|
|
|
||
|
|
setRemoteDescription(descJSON) {
|
||
|
|
const self = this;
|
||
|
|
try {
|
||
|
|
const remoteDesc = JSON.parse(descJSON);
|
||
|
|
this.peerConnection.setRemoteDescription(remoteDesc, () => {
|
||
|
|
if(remoteDesc.type == 'offer') {
|
||
|
|
self.peerConnection.createAnswer((desc) => {
|
||
|
|
const selfDesc = desc;
|
||
|
|
self.peerConnection.setLocalDescription(selfDesc, () => {
|
||
|
|
self.client.descriptionHandler(self.peerId, JSON.stringify(selfDesc));
|
||
|
|
if (self.client.peerStateDesc != PEERSTATE_SUCCESS) self.client.peerStateDesc = PEERSTATE_SUCCESS;
|
||
|
|
}, (err) => {
|
||
|
|
console.error("Failed to set local description for \"" + self.peerId + "\"! " + err);
|
||
|
|
if (self.client.peerStateDesc == PEERSTATE_LOADING) self.client.peerStateDesc = PEERSTATE_FAILED;
|
||
|
|
self.client.signalRemoteDisconnect(self.peerId);
|
||
|
|
});
|
||
|
|
}, (err) => {
|
||
|
|
console.error("Failed to create answer for \"" + self.peerId + "\"! " + err);
|
||
|
|
if (self.client.peerStateDesc == PEERSTATE_LOADING) self.client.peerStateDesc = PEERSTATE_FAILED;
|
||
|
|
self.client.signalRemoteDisconnect(self.peerId);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}, (err) => {
|
||
|
|
console.error("Failed to set remote description for \"" + self.peerId + "\"! " + err);
|
||
|
|
if (self.client.peerStateDesc == PEERSTATE_LOADING) self.client.peerStateDesc = PEERSTATE_FAILED;
|
||
|
|
self.client.signalRemoteDisconnect(self.peerId);
|
||
|
|
});
|
||
|
|
} catch (err) {
|
||
|
|
console.error("Failed to parse remote description for \"" + self.peerId + "\"! " + err);
|
||
|
|
if (self.client.peerStateDesc == PEERSTATE_LOADING) self.client.peerStateDesc = PEERSTATE_FAILED;
|
||
|
|
self.client.signalRemoteDisconnect(self.peerId);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
addICECandidate(candidates) {
|
||
|
|
try {
|
||
|
|
const candidateList = JSON.parse(candidates);
|
||
|
|
for (let candidate of candidateList) {
|
||
|
|
this.peerConnection.addIceCandidate(new RTCIceCandidate(candidate));
|
||
|
|
}
|
||
|
|
if (this.client.peerStateIce != PEERSTATE_SUCCESS) this.client.peerStateIce = PEERSTATE_SUCCESS;
|
||
|
|
} catch (err) {
|
||
|
|
console.error("Failed to parse ice candidate for \"" + this.peerId + "\"! " + err);
|
||
|
|
if (this.client.peerStateIce == PEERSTATE_LOADING) this.client.peerStateIce = PEERSTATE_FAILED;
|
||
|
|
this.client.signalRemoteDisconnect(this.peerId);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
class EaglercraftLANServer {
|
||
|
|
|
||
|
|
constructor() {
|
||
|
|
this.ICEServers = [];
|
||
|
|
this.hasInit = false;
|
||
|
|
this.peerList = new Map();
|
||
|
|
this.peerState = PEERSTATE_LOADING;
|
||
|
|
this.peerStateConnect = PEERSTATE_LOADING;
|
||
|
|
this.peerStateInitial = PEERSTATE_LOADING;
|
||
|
|
this.peerStateDesc = PEERSTATE_LOADING;
|
||
|
|
this.peerStateIce = PEERSTATE_LOADING;
|
||
|
|
this.iceCandidateHandler = null;
|
||
|
|
this.descriptionHandler = null;
|
||
|
|
this.remoteClientDataChannelHandler = null;
|
||
|
|
this.remoteClientDisconnectHandler = null;
|
||
|
|
this.remoteClientPacketHandler = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
LANServerSupported() {
|
||
|
|
return typeof window.RTCPeerConnection !== "undefined";
|
||
|
|
}
|
||
|
|
|
||
|
|
initializeServer() {
|
||
|
|
// nothing to do!
|
||
|
|
}
|
||
|
|
|
||
|
|
setICEServers(urls) {
|
||
|
|
this.ICEServers.length = 0;
|
||
|
|
for(var i = 0; i < urls.length; ++i) {
|
||
|
|
var etr = urls[i].split(";");
|
||
|
|
if(etr.length == 1) {
|
||
|
|
this.ICEServers.push({ urls: etr[0] });
|
||
|
|
}else if(etr.length == 3) {
|
||
|
|
this.ICEServers.push({ urls: etr[0], username: etr[1], credential: etr[2] });
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
setICECandidateHandler(cb) {
|
||
|
|
this.iceCandidateHandler = cb;
|
||
|
|
}
|
||
|
|
|
||
|
|
setDescriptionHandler(cb) {
|
||
|
|
this.descriptionHandler = cb;
|
||
|
|
}
|
||
|
|
|
||
|
|
setRemoteClientDataChannelHandler(cb) {
|
||
|
|
this.remoteClientDataChannelHandler = cb;
|
||
|
|
}
|
||
|
|
|
||
|
|
setRemoteClientDisconnectHandler(cb) {
|
||
|
|
this.remoteClientDisconnectHandler = cb;
|
||
|
|
}
|
||
|
|
|
||
|
|
setRemoteClientPacketHandler(cb) {
|
||
|
|
this.remoteClientPacketHandler = cb;
|
||
|
|
}
|
||
|
|
|
||
|
|
sendPacketToRemoteClient(peerId, buffer) {
|
||
|
|
var thePeer = this.peerList.get(peerId);
|
||
|
|
if((typeof thePeer !== "undefined") && thePeer !== null) {
|
||
|
|
if(thePeer.dataChannel != null && thePeer.dataChannel.readyState == "open") {
|
||
|
|
thePeer.dataChannel.send(buffer);
|
||
|
|
}else {
|
||
|
|
this.signalRemoteDisconnect(peerId);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
resetPeerStates() {
|
||
|
|
this.peerState = this.peerStateConnect = this.peerStateInitial = this.peerStateDesc = this.peerStateIce = PEERSTATE_LOADING;
|
||
|
|
}
|
||
|
|
|
||
|
|
getPeerState() {
|
||
|
|
return this.peerState;
|
||
|
|
}
|
||
|
|
|
||
|
|
getPeerStateConnect() {
|
||
|
|
return this.peerStateConnect;
|
||
|
|
}
|
||
|
|
|
||
|
|
getPeerStateInitial() {
|
||
|
|
return this.peerStateInitial;
|
||
|
|
}
|
||
|
|
|
||
|
|
getPeerStateDesc() {
|
||
|
|
return this.peerStateDesc;
|
||
|
|
}
|
||
|
|
|
||
|
|
getPeerStateIce() {
|
||
|
|
return this.peerStateIce;
|
||
|
|
}
|
||
|
|
|
||
|
|
signalRemoteConnect(peerId) {
|
||
|
|
try {
|
||
|
|
const peerConnection = new RTCPeerConnection({ iceServers: this.ICEServers, optional: [ { DtlsSrtpKeyAgreement: true } ] });
|
||
|
|
const peerInstance = new EaglercraftLANPeer(this, peerId, peerConnection);
|
||
|
|
this.peerList.set(peerId, peerInstance);
|
||
|
|
if (this.peerStateConnect != PEERSTATE_SUCCESS) this.peerStateConnect = PEERSTATE_SUCCESS;
|
||
|
|
} catch (e) {
|
||
|
|
if (this.peerStateConnect == PEERSTATE_LOADING) this.peerStateConnect = PEERSTATE_FAILED;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
signalRemoteDescription(peerId, descJSON) {
|
||
|
|
var thePeer = this.peerList.get(peerId);
|
||
|
|
if((typeof thePeer !== "undefined") && thePeer !== null) {
|
||
|
|
thePeer.setRemoteDescription(descJSON);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
signalRemoteICECandidate(peerId, candidate) {
|
||
|
|
var thePeer = this.peerList.get(peerId);
|
||
|
|
if((typeof thePeer !== "undefined") && thePeer !== null) {
|
||
|
|
thePeer.addICECandidate(candidate);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
signalRemoteDisconnect(peerId) {
|
||
|
|
if(peerId.length == 0) {
|
||
|
|
for(const thePeer of this.peerList.values()) {
|
||
|
|
if((typeof thePeer !== "undefined") && thePeer !== null) {
|
||
|
|
this.peerList.delete(peerId);
|
||
|
|
try {
|
||
|
|
thePeer.disconnect();
|
||
|
|
}catch(e) {}
|
||
|
|
this.remoteClientDisconnectHandler(peerId);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
this.peerList.clear();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
var thePeer = this.peerList.get(peerId);
|
||
|
|
if((typeof thePeer !== "undefined") && thePeer !== null) {
|
||
|
|
this.peerList.delete(peerId);
|
||
|
|
try {
|
||
|
|
thePeer.disconnect();
|
||
|
|
}catch(e) {}
|
||
|
|
this.remoteClientDisconnectHandler(peerId);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
countPeers() {
|
||
|
|
return this.peerList.size;
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
window.constructLANServer = () => new EaglercraftLANServer();
|
||
|
|
});
|
||
|
|
|
||
|
|
window.startLANServer = () => {
|
||
|
|
if(typeof window.constructLANServer !== "function") {
|
||
|
|
window.initializeLANServer();
|
||
|
|
}
|
||
|
|
return window.constructLANServer();
|
||
|
|
};
|