fixing create permission handling

app/mobile/src/context/useRingContext.hook.js

@@ -241,6 +241,7 @@ export function useRingContext() {
     // connect signal socket
     connected.current = false;
     candidates.current = [];
+    pc.current = null;
     updateState({ remoteVideo: false, remoteAudio: false, remoteStream: null, localVideo: false, localAudio: false, localStream: null });
 
     videoTrack.current = false;
@@ -288,7 +289,9 @@ export function useRingContext() {
     }
     ws.current.onclose = (e) => {
       // update state to disconnected
-      pc.current.close();
+      if (pc.current) {
+        pc.current.close();
+      }
       clearRing();
       clearAlive();
       calling.current = null;

net/server/internal/sturn/message.go

@@ -120,11 +120,31 @@ func (s *Sturn) handleMessage(buf []byte, addr net.Addr) {
 }
 
 func (s *Sturn) handleCreatePermissionRequest(msg *SturnMessage, addr net.Addr) {
-  fmt.Println(addr.String(), msg);
+fmt.Println(addr.String(), msg);
+
+  var attributes []SturnAttribute
+  attributes = append(attributes, SturnAttribute{
+    atrType: ATRMessageIntegrity,
+  });
+
+  response := &SturnMessage{
+    class: CLSResponse,
+    method: MEHCreatePermission,
+    transaction: msg.transaction,
+    attributes: attributes,
+  };
+  err, n := writeMessage(response, s.buf);
+  if err != nil {
+    fmt.Printf("failed to write stun response");
+  } else {
+    (*s.conn).WriteTo(s.buf[:n], addr);
+fmt.Println("PERM>", s.buf[:n]);
+  }
+  return
 }
 
 func (s *Sturn) handleSendIndication(msg *SturnMessage, addr net.Addr) {
-  fmt.Println(addr.String(), msg);
+  //fmt.Println(addr.String(), msg);
 }
 
 func (s *Sturn) handleBindingRequest(msg *SturnMessage, addr net.Addr) {
@@ -222,7 +242,8 @@ func (s *Sturn) handleAllocateRequest(msg *SturnMessage, addr net.Addr) {
     atrType: ATRXorRelayedAddress,
     byteValue: FAMIPv4,
     intValue: int32(relayPort),
-    strValue: "98.234.232.221",
+    strValue: "192.168.13.233",
+    //strValue: "98.234.232.221",
   });
   attributes = append(attributes, SturnAttribute{
     atrType: ATRLifetime,

net/server/internal/sturn/types.go

@@ -138,6 +138,12 @@ func setMessageType(class int, method int) (byte, byte) {
   if class == CLSError && method == MEHAllocate {
     return 0x01, 0x13
   }
+  if class == CLSResponse && method == MEHCreatePermission {
+    return 0x01, 0x08
+  }
+  if class == CLSError && method == MEHCreatePermission {
+    return 0x01, 0x18
+  }
   return 0x00, 0x00
 }