STUN/TURN Server

Discovery Topic.

Adding a local TUN/STUN service to the stack might improve the discovery and peering experience and potentially allow us to later move the same logic to be served by Gun (which already knows the public identity of a remote peer through its sockets) directly through a plugin.

Integrating node-turn seems to be quite trivial and the service provides a valid responds to basic browser requests

Config

var Turn = require('node-turn');
const PORT = process.env.PORT || 19302;
console.log("App Port: " + PORT);
var server = new Turn({
  // set options
  authMech: 'none',
  debugLevel: 'DEBUG',
  listeningIps: ['0.0.0.0'],
  listeningPort: `${PORT}`,
  log: function(a,b){ console.log('LOG',a,b)}
});
server.start();

Response

Receiving UDP: from IPV4://xx.xx.xx.xx:33000 to IPV4://yy.yy.yy.yy:3478 binding request TransactionID: 787444776d4b30534f65784c
Sending UDP: from IPV4://yy.yy.yy.yy:3478 to IPV4://xx.xx.xx.xx:33000 binding success TransactionID: 787444776d4b30534f65784c
  xor-mapped-address: IPV4://xx.xx.xx.xx:33000

The local node can be added to the logic here