Started work on WebRTC Negotation Relay Backend

config.example.json

@@ -34,6 +34,11 @@
         "address": "toke@42069.weed",
         "pass": "CHANGE_ME"
     },
+    "iceServers":[
+        {
+            "url":"stun:stun.moonlight-stream.org:3478"
+        }
+    ],
     "links":{
         "About": "/about",
         "Code": "https://git.ourfore.st/rainbownapkin/canopy",

config.example.jsonc

@@ -65,6 +65,12 @@
         "address": "toke@42069.weed",
         "pass": "CHANGE_ME"
     },
+    //Privdes STUN/TURN servers for WebRTC functionality
+    "iceServers":[
+        {
+            "url":"stun:stun.moonlight-stream.org:3478"
+        }
+    ],
     //Provides customizable links for navbar
     "links":{
         "About": "/about",

src/app/channel/activeChannel.js

@@ -19,7 +19,8 @@ const connectedUser = require('./connectedUser');
 const chatBuffer = require('./chatBuffer');
 const queue = require('./media/queue');
 const channelModel = require('../../schemas/channel/channelSchema');
-const playlistHandler = require('./media/playlistHandler')
+const playlistHandler = require('./media/playlistHandler');
+const webRTCHandler = require('./media/webRTCHandler');
 
 /**
  * Class representing a single active channel
@@ -67,6 +68,11 @@ class activeChannel{
          */
         this.playlistHandler = new playlistHandler(server, this);
 
+        /**
+         * Child WebRTC Handler Object
+         */
+        this.webRTCHandler = new webRTCHandler(server, this);
+
         /**
          * Child Chat Buffer Object
          */
@@ -108,6 +114,7 @@ class activeChannel{
         //Define per-channel event listeners
         this.queue.defineListeners(socket);
         this.playlistHandler.defineListeners(socket);
+        this.webRTCHandler.defineListeners(socket);
 
         //Hand off the connection initiation to it's user object
         const activeUser = await userObj.handleConnection(userDB, chanDB, socket)

src/app/channel/connectedUser.js

@@ -236,7 +236,7 @@ class connectedUser{
         const chatBuffer = this.channel.chatBuffer.buffer;
 
         //Send off the metadata to our user's clients
-        this.emit("clientMetadata", {user: userObj, flairList, queueLock, chatBuffer, streamType: chanDB.settings.streamType});
+        this.emit("clientMetadata", {user: userObj, flairList, queueLock, chatBuffer, streamType: chanDB.settings.streamType, iceServers: config.iceServers});
     }
 
     /**

src/app/channel/media/queue.js

@@ -331,8 +331,8 @@ class queue{
         try{
             //Define and/or declare required variables
             let title = "Livestream";
-            let filename;
+            let filename = '/';
-            let streamURL;
+            let streamURL = '/';
 
             if(data != null && data.title != null){
                 //If the title is too long
@@ -368,10 +368,10 @@ class queue{
                 return;
             }
 
-            if(chanDB.settings.streamType == "webrtc"){
+            /*if(chanDB.settings.streamType == "webrtc"){
                 console.log("WEBRTC ENABLED, BAILING!");
                 return;
-            }
+            }*/
 
             //If something is playing
             if(this.nowPlaying != null){

src/app/channel/media/webRTCHandler.js

@@ -0,0 +1,81 @@
+/*Canopy - The next generation of stoner streaming software
+Copyright (C) 2024-2026 Rainbownapkin and the TTN Community
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.*/
+
+/**
+ * Object to relay WebRTC Negotiation data for a single channel
+ */
+class webRTCHandler{
+    /**
+     * Instantiates a new object to relay WebRTC Negotiation data for a single channel
+     * @param {channelManager} server - Parent server object
+     * @param {activeChannel} channel - Parent Channel object
+     */
+    constructor(server, channel){
+        /**
+         * Parent Server Object
+         */
+        this.server = server
+        
+        /**
+         * Parent Channel Object
+         */
+        this.channel = channel;
+
+        /**
+         * Declare class property to hold socked it of the current device/browser-tab we're streaming from 
+         */
+        this.currentStreamer;
+    }
+
+    /**
+     * Defines server-side socket.io listeners for newly connected sockets
+     * @param {Socket} socket - Newly connected socket to define listeners against
+     */
+    defineListeners(socket){
+        //Queueing Functions
+        socket.on("relayRTCData", (data) => {this.relayRTCData(socket, data)});
+    }
+
+    startStream(socket){
+        this.currentStreamer = socket.id;
+    }
+
+    endStream(){
+        this.currentStreamer = null;
+    }
+
+    relayRTCData(socket, data){
+        //Set the recipient to the current streamer by default, assuming that this isn't coming from the streaming socket
+        let recipientID = this.currentStreamer;
+
+        //if data is being relayed from streaming socket to a viewer
+        if(socket.id == this.currentStreamer){
+            //Change recipient to reflect streaming socket's request
+            recipientID = data.recipient;
+        }
+
+        //Get recipient socket
+        const recipient = this.server.io.sockets.sockets.get(recipientID);
+
+        //Relay RTC Data
+        recipient.emit("RTCData", {
+            type: data.type,
+            body: data.body
+        });
+    }
+}
+
+module.exports = webRTCHandler;

www/js/channel/channel.js

@@ -153,6 +153,9 @@ class channel{
 
         //Store streamType
         this.streamType = data.streamType;
+
+        //Store URLs to known Internet Connectivitey Establishment servers.
+        this.iceServer = data.iceServers;
     }
 
     /**