Move the panel to a server without VPN; servers for all master keys at once

The «Перенос» tab moves a panel + VPN server to a panel-only server without users noticing: the new panel issues a one-time awgmove:// code, the old one sends its ui.db, subscription keys and hub certificate encrypted with it, and becomes node #0 of the new panel. Server id 0 is kept, so config servers[] is byte-identical. The old server relays its former ports (awg-relay, PROXY v1 header trusted only from RELAY_FROM), so sen:// links, nodes and the API keep working. The same is available from the CLI: migrate export/import/cancel, rehome. Nodes now learn the panel's address: the hub sends it in ready, the agent stores it in CORE_ENDPOINT, dials it first and confirms with core_ok. The new panel shows when the old server can be turned off: devices that got the new address, nodes that confirmed it, master keys never opened. «Серверы для всех» on the master keys tab adds or removes servers on every live key in one go, with a dry run that warns about API keys that would lose sight of some keys, and sets the servers new keys get.
2026-10-21 15:59:33 +03:00
parent 0687650d26
commit eb19cacf93
33 changed files with 3603 additions and 106 deletions
@@ -268,3 +268,86 @@ func TestNodeKeyPersists(t *testing.T) {
 		t.Fatalf("node.key mode %v", st.Mode().Perm())
 	}
 }
+
+// Нода #0 — сервер, с которого переехала панель: 0 — значение, а не «не задан».
+func TestConfigNodeZero(t *testing.T) {
+	t.Setenv("CORE_HOST", "203.0.113.7")
+	t.Setenv("CORE_PORT", "40500")
+	t.Setenv("CORE_PIN", "pin")
+	for id, ok := range map[string]bool{"0": true, "3": true, "": false, "-1": false, "x": false} {
+		t.Setenv("NODE_ID", id)
+		c, err := ConfigFromEnv()
+		if (err == nil) != ok {
+			t.Errorf("NODE_ID=%q: %v", id, err)
+		}
+		if ok && strconv.Itoa(c.NodeID) != id {
+			t.Errorf("NODE_ID=%q → %d", id, c.NodeID)
+		}
+	}
+}
+
+// Панель переехала: core сообщает свой адрес в ready, агент записывает его в cli.env,
+// подтверждает (core_ok) и с тех пор звонит туда первым, а адрес из join — запасной.
+func TestLearnsCoreAddress(t *testing.T) {
+	c := newCore(t, func(ctx context.Context, ws *websocket.Conn, read func() jsjson.Object) {
+		send(ctx, ws, jsjson.Object{{Key: "t", Val: "hello"}, {Key: "nonce", Val: "n"}})
+		read()
+		send(ctx, ws, jsjson.Object{{Key: "t", Val: "ready"}, {Key: "core", Val: "198.51.100.9:40500"}})
+		read()
+		ws.Close(websocket.StatusNormalClosure, "")
+	})
+	a, envFile := newAgent(t, c, c.pin(t), "http://127.0.0.1:1")
+	host, port := c.hostPort()
+	join := hostPort(host, port)
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	a.connectOnce(ctx, nil)
+
+	<-c.frames // auth
+	if ok := <-c.frames; string(jsjson.MustMarshal(ok)) != `{"t":"core_ok","core":"198.51.100.9:40500"}` {
+		t.Errorf("подтверждение: %s", jsjson.MustMarshal(ok))
+	}
+	if raw, _ := os.ReadFile(envFile); !strings.Contains(string(raw), "CORE_ENDPOINT=198.51.100.9:40500") {
+		t.Errorf("cli.env: %q", raw)
+	}
+	if strings.Join(a.addrs, " ") != "198.51.100.9:40500 "+join || a.addr() != join {
+		t.Errorf("адреса %v, текущий %s", a.addrs, a.addr())
+	}
+}
+
+func TestBadCoreAddressIgnored(t *testing.T) {
+	a := &Agent{c: Config{CoreHost: "203.0.113.1", CorePort: 40500, CLIEnvFile: filepath.Join(t.TempDir(), "cli.env"), Logf: t.Logf, Errorf: t.Logf}}
+	a.setAddrs("")
+	for _, bad := range []string{"", "x", "host:0", "host:99999", "a b:1", "host:1/x", "[::1]:x"} {
+		if a.learnCore(bad) {
+			t.Errorf("принят адрес %q", bad)
+		}
+	}
+	if !a.learnCore("[2001:db8::1]:443") || a.addrs[0] != "[2001:db8::1]:443" {
+		t.Errorf("IPv6: %v", a.addrs)
+	}
+}
+
+// Записанный адрес не отвечает (старый сервер выключен или новый ещё не открыт) — следующая
+// попытка идёт на адрес из join.
+func TestFallsBackToJoinAddress(t *testing.T) {
+	connected := make(chan struct{}, 1)
+	c := newCore(t, func(ctx context.Context, ws *websocket.Conn, read func() jsjson.Object) {
+		send(ctx, ws, jsjson.Object{{Key: "t", Val: "hello"}, {Key: "nonce", Val: "n"}})
+		read()
+		send(ctx, ws, jsjson.Object{{Key: "t", Val: "ready"}})
+		connected <- struct{}{}
+		<-ctx.Done()
+	})
+	a, _ := newAgent(t, c, c.pin(t), "http://127.0.0.1:1")
+	a.c.CoreEndpoint = "127.0.0.1:1"
+	a.setAddrs(a.c.CoreEndpoint)
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	go a.Run(ctx)
+	select {
+	case <-connected:
+	case <-ctx.Done():
+		t.Fatal("агент не перешёл на адрес из join")
+	}
+}