can make relay connection now

src/client.ts

@@ -0,0 +1,100 @@
+import Websock from "./websock";
+import * as message from "./message.js";
+import * as rendezvous from "./rendezvous.js";
+import { loadVp9, loadOpus } from "./codec";
+
+const URI = "ws://207.148.17.15";
+const PORT = 21118;
+const licenceKey = "";
+
+loadVp9();
+loadOpus();
+
+export default class Client {
+  _msgs: any[];
+  _ws: Websock | undefined;
+  _interval: any;
+  _id: string;
+
+  constructor() {
+    this._msgs = [];
+    this._id = '';
+    this._interval = setInterval(() => {
+      while (this._msgs.length) {
+        this._ws?.sendMessage(this._msgs[0]);
+        this._msgs.splice(0, 1);
+      }
+    }, 1);
+  }
+
+  close() {
+    clearInterval(this._interval);
+    this._ws?.close();
+  }
+
+  async connect(id: string) {
+    const ws = new Websock(URI + ":" + PORT);
+    this._ws = ws;
+    this._id = id;
+    await ws.open();
+    const connType = rendezvous.ConnType.DEFAULT_CONN;
+    const natType = rendezvous.NatType.SYMMETRIC;
+    const punchHoleRequest = rendezvous.PunchHoleRequest.fromJSON({
+      id,
+      licenceKey,
+      connType,
+      natType,
+    });
+    ws.sendRendezvous({ punchHoleRequest });
+    const msg = ws.parseRendezvous(await ws.next());
+    const phr = msg.punchHoleResponse;
+    const rr = msg.relayResponse;
+    if (phr) {
+      if (phr.failure != rendezvous.PunchHoleResponse_Failure.UNKNOWN) {
+        switch (phr?.failure) {
+          case rendezvous.PunchHoleResponse_Failure.ID_NOT_EXIST:
+            break;
+        }
+        ws.close();
+      }
+    } else if (rr) {
+      await this.connectRelay(rr);
+    }
+  }
+
+  async connectRelay(rr: rendezvous.RelayResponse) {
+    const pk = rr.pk;
+    let uri = rr.relayServer;
+    if (uri.indexOf(':') > 0) {
+      const tmp = uri.split(':');
+      const port = parseInt(tmp[1]);
+      uri = tmp[0] + ':' + (port + 2);
+    } else {
+      uri += ':' + (PORT + 1);
+    }
+    const uuid = rr.uuid;
+    const ws = new Websock('ws://' + uri);
+    await ws.open();
+    console.log('Connected to relay server')
+    this._ws = ws;
+    const requestRelay = rendezvous.RequestRelay.fromJSON({
+      licenceKey,
+      uuid,
+    });
+    ws.sendRendezvous({ requestRelay });
+    await this.secure(pk);
+  }
+
+  async secure(pk: Uint8Array | undefined) {
+    //
+  }
+}
+
+async function testDelay() {
+  const ws = new Websock(URI + ":" + PORT);
+  await ws.open();
+  console.log(ws.latency());
+}
+
+await testDelay();
+await new Client().connect("124931507");