WebRTC Turn/Stun config

frontend/WebRTC.ts

@@ -26,28 +26,53 @@ export default class WebRTC
     public events : { [eventname:string]: Function[] } = {};
     public channel : RTCDataChannel | undefined;
 
+    public static defaultRTCConfig : RTCConfiguration = {
+        iceCandidatePoolSize: 0,
+        iceTransportPolicy:"all",
+        rtcpMuxPolicy:"require",
+    };
+
+
+    public static defaultICEServers : RTCIceServer[] = [{
+        urls: "stun:stun.l.google.com:19302"
+    },{
+        urls: "stun:stun1.l.google.com:19302"
+    },{
+        urls: "stun:stun2.l.google.com:19302"
+    },{
+        urls: "stun:stun3.l.google.com:19302"
+    },{
+        urls: "stun:stun4.l.google.com:19302"
+    }];
+
     public peer? : Peer;
 
     public FileTransportChannel? : P2PFileSender;
 
-    constructor()
+    constructor(
+        rtcConfig?: RTCConfiguration,
+        rtcServers?: RTCIceServer[]
+    )
     {
-        this.rtc = new RTCPeerConnection({
+        let config : any = {};
-            iceCandidatePoolSize: 0,
+
-            iceTransportPolicy:"all",
+        if(rtcConfig)
-            rtcpMuxPolicy:"require",
+        {
-            iceServers:[{
+            Object.assign(
-                urls: "stun:stun.l.google.com:19302"
+                config,
-            },{
+                WebRTC.defaultRTCConfig,
-                urls: "stun:stun1.l.google.com:19302"
+                rtcConfig
-            },{
+            )
-                urls: "stun:stun2.l.google.com:19302"
+        }else{
-            },{
+            Object.assign(
-                urls: "stun:stun3.l.google.com:19302"
+                config,
-            },{
+                WebRTC.defaultRTCConfig
-                urls: "stun:stun4.l.google.com:19302"
+            )
-            }]
+        }
-        });
+
+        config.iceServers = rtcServers || WebRTC.defaultICEServers;
+
+        this.rtc = new RTCPeerConnection(config as RTCConfiguration);
         this.rtc.addEventListener("connectionstatechange",()=>{
             this.eventConnectionState();
         })