Обработка Offers от сервера

boot/boot.go

@@ -27,10 +27,12 @@ func Bootstrap() {
 		port = "1001"
 	}
 	sfu.OnLocalICECandidate = OnLocalICECandidate
+	sfu.OnServerOffer = OnServerOffer
 	logger.LogInfoMessage("server started at x.x.x.x:" + port)
 	http.ListenAndServe(":"+port, nil)
 }
 
+// Коллбек для обработки новых ICE кандидатов от сервера к пиру
 func OnLocalICECandidate(roomID string, peerID string, candidate webrtc.ICECandidateInit) {
 	room, exists := sfu.GetRoom(roomID)
 	if !exists {
@@ -52,6 +54,24 @@ func OnLocalICECandidate(roomID string, peerID string, candidate webrtc.ICECandi
 	room.Server.Socket.WriteMessage(websocket.BinaryMessage, buffer.Bytes())
 }
 
+// Обработка нового оффера от сервера для конкретного пира (при renegotiation)
 func OnServerOffer(roomID string, peerID string, offer webrtc.SessionDescription) {
-	logger.LogInfoMessage("new server offer for peer " + peerID + " in room " + roomID)
+	room, exists := sfu.GetRoom(roomID)
+	if !exists {
+		logger.LogWarnMessage("tried to send server offer to non existing room " + roomID)
+		return
+	}
+	jsonOffer, _ := json.Marshal(offer)
+	buffer := bytebuffer.Allocate(
+		1 + 4 + len([]byte(roomID)) + 4 + len([]byte(peerID)) + 4 + len(jsonOffer),
+	)
+	buffer.Put(0x08)
+	buffer.PutUint32(uint32(len([]byte(roomID))))
+	buffer.PutBytes([]byte(roomID))
+	buffer.PutUint32(uint32(len([]byte(peerID))))
+	buffer.PutBytes([]byte(peerID))
+	buffer.PutUint32(uint32(len([]byte(jsonOffer))))
+	buffer.PutBytes([]byte(jsonOffer))
+	buffer.Flip()
+	room.Server.Socket.WriteMessage(websocket.BinaryMessage, buffer.Bytes())
 }