调用 inboundManager.Create(...) 时把第二个参数 router 传成了 nil。但 protocol/shadowsocks/inbound_multi.go 初始化时会无条件把这个 router 包进 uot.NewRouter(router, logger)，所以 client 每次重连都会稳定触发一次空指针。

service/xboard/service.go

@@ -72,6 +72,7 @@ type Service struct {
 	reportTicker   *time.Ticker
 	aliveTicker    *time.Ticker
 	access         sync.Mutex
+	router         adapter.Router
 	inboundManager adapter.InboundManager
 	ssCipher       string // stored for user key derivation in syncUsers
 	ssServerKey    string // stored for SS2022 per-user key extraction
@@ -258,6 +259,7 @@ func NewService(ctx context.Context, logger log.ContextLogger, tag string, optio
 		syncTicker:     time.NewTicker(time.Duration(options.SyncInterval)),
 		reportTicker:   time.NewTicker(time.Duration(options.ReportInterval)),
 		aliveTicker:    time.NewTicker(1 * time.Minute),
+		router:         service.FromContext[adapter.Router](ctx),
 		inboundManager: service.FromContext[adapter.InboundManager](ctx),
 	}
 
@@ -759,7 +761,7 @@ func (s *Service) setupNode() error {
 	s.inboundManager.Remove(inboundTag)
 
 	// Create new inbound
-	err = s.inboundManager.Create(s.ctx, nil, s.logger, inboundTag, protocol, inboundOptions)
+	err = s.inboundManager.Create(s.ctx, s.router, s.logger, inboundTag, protocol, inboundOptions)
 	if err != nil {
 		return err
 	}

service/xboard/service_test.go

@@ -51,3 +51,18 @@ func TestResolveUserKeyForNonSS2022UsesResolvedKey(t *testing.T) {
 		t.Fatalf("resolveUserKey() = %q, want %q", got, "passwd-value")
 	}
 }
+
+func TestXUserIdentifierFallsBackToEmailThenID(t *testing.T) {
+	userWithEmail := XUser{
+		ID:    8,
+		Email: "user@example.com",
+	}
+	if got := userWithEmail.Identifier(); got != "user@example.com" {
+		t.Fatalf("Identifier() = %q, want %q", got, "user@example.com")
+	}
+
+	userWithID := XUser{ID: 9}
+	if got := userWithID.Identifier(); got != "9" {
+		t.Fatalf("Identifier() = %q, want %q", got, "9")
+	}
+}