feat: 实现端停用与删除的消息作废与群主转让级联

cmd/nixmsg/serve.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"io/fs"
 	"log/slog"
 	"net"
 	"net/http"
@@ -14,7 +15,18 @@ import (
 	"syscall"
 	"time"
 
+	"git.asio.asia/nixevol/NixMsg/internal/admin"
+	"git.asio.asia/nixevol/NixMsg/internal/app/group"
+	"git.asio.asia/nixevol/NixMsg/internal/app/identity"
+	"git.asio.asia/nixevol/NixMsg/internal/app/message"
+	"git.asio.asia/nixevol/NixMsg/internal/app/port"
+	"git.asio.asia/nixevol/NixMsg/internal/app/presence"
+	"git.asio.asia/nixevol/NixMsg/internal/auth"
+	"git.asio.asia/nixevol/NixMsg/internal/broker"
 	"git.asio.asia/nixevol/NixMsg/internal/config"
+	"git.asio.asia/nixevol/NixMsg/internal/httpx"
+	"git.asio.asia/nixevol/NixMsg/internal/listener"
+	"git.asio.asia/nixevol/NixMsg/internal/metrics"
 	"git.asio.asia/nixevol/NixMsg/internal/store"
 	"git.asio.asia/nixevol/NixMsg/web"
 )
@@ -25,20 +37,16 @@ func cmdServe(_ []string) error {
 	if err != nil {
 		return err
 	}
-	// P-WIRE-BEGIN
 	if err := cfg.Validate(); err != nil {
 		return err
 	}
 	setupJSONLogger(cfg.Log)
-	// P-WIRE-END
 	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
 	defer stop()
 	return runServe(ctx, cfg)
 }
 
 func runServe(ctx context.Context, cfg config.Config) error {
-	deps := wire()
-
 	if err := os.MkdirAll(cfg.DataDir, 0o755); err != nil {
 		return fmt.Errorf("mkdir data_dir: %w", err)
 	}
@@ -49,7 +57,6 @@ func runServe(ctx context.Context, cfg config.Config) error {
 	}
 	defer func() { _ = db.Close() }()
 
-	// P-WIRE-BEGIN
 	ok, err := store.HasAdminPassword(ctx, db.Write)
 	if err != nil {
 		return err
@@ -57,87 +64,254 @@ func runServe(ctx context.Context, cfg config.Config) error {
 	if !ok {
 		return errors.New("admin password not initialized; run: nixmsg admin init")
 	}
-	// P-WIRE-END
 
-	// 启动恢复入口已挂上（假实现为空操作）；M 线替换 message.Service 后生效。
-	if recoverErr := deps.Messages.RecoverOnStart(ctx); recoverErr != nil {
+	hashPool := auth.NewPool()
+	sessionTokens := auth.NewSessionTokens()
+	apiTokens := auth.NewAPITokens()
+	loginLocks := auth.NewLoginLocks()
+	memConns := message.NewMemoryConns()
+	msgLim := message.LimitsFromFullConfig(cfg)
+
+	login := broker.NewLogin(broker.LoginOptions{
+		DB:       db,
+		Pool:     hashPool,
+		Tokens:   sessionTokens,
+		Locks:    loginLocks,
+		IdleDays: cfg.SessionIdleDays,
+	})
+
+	// 先用空下行建 message，拿到 App 指针；broker 建好后再 WithDownlink 重建并回填 uplink.msg。
+	msgApp := message.New(db, msgLim, hashPool,
+		message.WithLocks(loginLocks),
+		message.WithConnRegistry(memConns),
+	)
+	uplink := &appUplink{
+		msg:   msgApp,
+		conns: memConns,
+		log:   slog.Default(),
+	}
+	sess := broker.NewSession(broker.SessionOptions{
+		Login: login,
+		Inner: uplink,
+		Limits: broker.HelloLimits{
+			MaxBodyBytes:       cfg.Limits.MaxBodyBytes,
+			MaxMetaBytes:       cfg.Limits.MaxMetaBytes,
+			MaxFrameBytes:      cfg.Limits.MaxFrameBytes,
+			MaxTTLSeconds:      int64(cfg.Limits.MaxTTLSeconds),
+			MaxScheduleSeconds: int64(cfg.Limits.MaxScheduleSeconds),
+			AckTimeoutSeconds:  int64(cfg.Limits.AckTimeoutSeconds),
+			ServerVersion:      Version,
+		},
+		Logger: slog.Default(),
+	})
+
+	brk, err := broker.New(broker.Options{
+		Authenticator: login,
+		Uplink:        sess,
+		Logger:        slog.Default(),
+		OnPublishDropped: func(dropCtx context.Context, endpointID string, connID port.ConnID, payload []byte) {
+			if dropErr := msgApp.OnPublishDropped(dropCtx, endpointID, connID, payload); dropErr != nil {
+				slog.Error("on publish dropped", "endpoint", endpointID, "err", dropErr)
+			}
+		},
+	})
+	if err != nil {
+		return fmt.Errorf("broker: %w", err)
+	}
+	defer func() { _ = brk.Close() }()
+	sess.Attach(brk)
+
+	msgApp = message.New(db, msgLim, hashPool,
+		message.WithLocks(loginLocks),
+		message.WithConnRegistry(memConns),
+		message.WithDownlink(brk),
+	)
+	uplink.msg = msgApp
+	uplink.down = brk
+
+	presApp := presence.New(presence.Config{
+		DB:       db,
+		Downlink: brk,
+		Conns:    &presenceConnTable{conns: memConns},
+	})
+	sess.SetPresence(presApp)
+	uplink.presence = presApp
+
+	idApp := identity.New(identity.Config{
+		DB:                 db,
+		Hash:               hashPool,
+		Locks:              loginLocks,
+		Sessions:           sessionTokens,
+		MaxScheduleSeconds: int64(cfg.Limits.MaxScheduleSeconds),
+		Logger:             slog.Default(),
+		ConnControl:        brk,
+	})
+	uplink.identity = idApp
+
+	groupApp := group.New(group.Config{
+		DB:              db,
+		Talk:            idApp,
+		Online:          presApp,
+		Downlink:        brk,
+		MaxGroupMembers: cfg.Limits.MaxGroupMembers,
+	})
+	uplink.groups = groupApp
+
+	if recoverErr := msgApp.RecoverOnStart(ctx); recoverErr != nil {
 		return fmt.Errorf("message recover: %w", recoverErr)
 	}
-	// 其余 deps 供后续 admin / broker / httpx 接线；此处显式引用避免未使用告警。
-	_ = deps.Identity
-	_ = deps.Groups
-	_ = deps.Presence
-	_ = deps.Downlink
-	_ = deps.Conns
-	_ = deps.Uplink
-	_ = deps.HashPool
-	_ = deps.SessionTokens
-	_ = deps.APITokens
-	_ = deps.LoginLocks
 
-	mux := http.NewServeMux()
-	mux.HandleFunc("GET /healthz", func(w http.ResponseWriter, _ *http.Request) {
-		w.WriteHeader(http.StatusOK)
-		_, _ = w.Write([]byte("ok"))
+	trustedNets := httpx.ParseCIDRs(cfg.TrustedProxies)
+	adminHandler := admin.New(admin.Deps{
+		DB:             db,
+		Hash:           hashPool,
+		Tokens:         apiTokens,
+		Locks:          loginLocks,
+		Logger:         slog.Default(),
+		TrustedProxies: trustedNets,
+		KickEndpoint: func(kickCtx context.Context, endpointID string) (bool, error) {
+			if _, found := brk.ConnInfoOf(endpointID); !found {
+				return false, nil
+			}
+			if kickErr := sess.Kick(kickCtx, endpointID); kickErr != nil {
+				return false, kickErr
+			}
+			return true, nil
+		},
 	})
-	// P-WIRE-BEGIN
-	mux.HandleFunc("GET /readyz", func(w http.ResponseWriter, r *http.Request) {
-		if readyErr := db.Ready(r.Context()); readyErr != nil {
-			slog.Error("readyz failed", "err", readyErr)
-			http.Error(w, "not ready", http.StatusServiceUnavailable)
-			return
+
+	metricsReg := metrics.New()
+	buildHandlers := func(proxies *listener.ProxySet) listener.Handlers {
+		return listener.Handlers{
+			MQTT:         brk.WSHandler(proxies),
+			ClientAPI:    idApp.Handler(),
+			AdminAPI:     adminHandler,
+			Metrics:      metricsReg.Handler(),
+			MetricsToken: cfg.Metrics.Token,
+			Static:       staticFileHandler(),
+			Healthz: http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+				w.WriteHeader(http.StatusOK)
+				_, _ = w.Write([]byte("ok"))
+			}),
+			Readyz: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				if readyErr := db.Ready(r.Context()); readyErr != nil {
+					slog.Error("readyz failed", "err", readyErr)
+					http.Error(w, "not ready", http.StatusServiceUnavailable)
+					return
+				}
+				w.WriteHeader(http.StatusOK)
+				_, _ = w.Write([]byte("ok"))
+			}),
 		}
-		w.WriteHeader(http.StatusOK)
-		_, _ = w.Write([]byte("ok"))
-	})
-	// P-WIRE-END
-	// 确保前端资源被链接进二进制；完整静态托管由后续任务完善。
-	_ = web.Dist()
-
-	ln, err := net.Listen("tcp", cfg.Listen)
-	if err != nil {
-		return fmt.Errorf("listen %s: %w", cfg.Listen, err)
 	}
 
-	if err := writeListenAddr(cfg.DataDir, ln.Addr().String()); err != nil {
-		_ = ln.Close()
+	handlers := buildHandlers(nil)
+	shared := cfg.AdminListen == ""
+	var clientHandler, adminHTTP http.Handler
+	if shared {
+		clientHandler = listener.NewMux(listener.RoleShared, handlers)
+	} else {
+		clientHandler = listener.NewMux(listener.RoleClient, handlers)
+		adminHTTP = listener.NewMux(listener.RoleAdmin, handlers)
+	}
+
+	lnOpts := listener.Options{
+		Listen:         cfg.Listen,
+		AdminListen:    cfg.AdminListen,
+		DataDir:        cfg.DataDir,
+		CertFile:       cfg.TLS.CertFile,
+		KeyFile:        cfg.TLS.KeyFile,
+		AllowPlaintext: cfg.TLS.AllowPlaintext,
+		TrustedProxies: cfg.TrustedProxies,
+		ClientHandler:  clientHandler,
+		AdminHandler:   adminHTTP,
+		OnMQTT: func(conn net.Conn) {
+			_ = brk.AttachTCP(conn)
+		},
+		Logger: slog.Default(),
+	}
+	lnSrv, err := listener.New(lnOpts)
+	if err != nil {
+		return fmt.Errorf("listener: %w", err)
+	}
+	handlers = buildHandlers(lnSrv.Proxies())
+	if shared {
+		lnOpts.ClientHandler = listener.NewMux(listener.RoleShared, handlers)
+	} else {
+		lnOpts.ClientHandler = listener.NewMux(listener.RoleClient, handlers)
+		lnOpts.AdminHandler = listener.NewMux(listener.RoleAdmin, handlers)
+	}
+	lnSrv, err = listener.New(lnOpts)
+	if err != nil {
+		return fmt.Errorf("listener: %w", err)
+	}
+
+	if err := lnSrv.Start(ctx); err != nil {
 		return err
 	}
+	defer func() { _ = lnSrv.Close() }()
 
-	srv := &http.Server{
-		Handler:           mux,
-		ReadHeaderTimeout: 10 * time.Second,
+	if err := writeListenAddr(cfg.DataDir, lnSrv.ListenAddr()); err != nil {
+		return err
+	}
+	if cfg.AdminListen != "" && lnSrv.AdminAddr() != "" {
+		if err := os.WriteFile(filepath.Join(cfg.DataDir, "admin.addr"), []byte(lnSrv.AdminAddr()+"\n"), 0o644); err != nil {
+			return err
+		}
 	}
 
-	errCh := make(chan error, 1)
-	go func() {
-		errCh <- srv.Serve(ln)
-	}()
+	loopCtx, loopCancel := context.WithCancel(ctx)
+	defer loopCancel()
+	go messageLoops(loopCtx, msgApp, memConns)
 
-	select {
-	case <-ctx.Done():
-		// P-WIRE-BEGIN
-		// 先停止接受新连接，再等写队列最多 10 秒，然后断开并退出。
-		shutdownCtx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
-		defer cancel()
-		_ = srv.Shutdown(shutdownCtx)
-		drainCtx, drainCancel := context.WithTimeout(context.Background(), 10*time.Second)
-		defer drainCancel()
-		if drainErr := db.Queue.Drain(drainCtx); drainErr != nil && !errors.Is(drainErr, context.DeadlineExceeded) {
-			slog.Error("write queue drain", "err", drainErr)
-		}
-		// P-WIRE-END
-		serveErr := <-errCh
-		if serveErr != nil && !errors.Is(serveErr, http.ErrServerClosed) {
-			return serveErr
-		}
-		return nil
-	case serveErr := <-errCh:
-		if errors.Is(serveErr, http.ErrServerClosed) {
-			return nil
-		}
-		return serveErr
+	<-ctx.Done()
+	loopCancel()
+	_ = lnSrv.Close()
+	drainCtx, drainCancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer drainCancel()
+	if drainErr := db.Queue.Drain(drainCtx); drainErr != nil && !errors.Is(drainErr, context.DeadlineExceeded) {
+		slog.Error("write queue drain", "err", drainErr)
 	}
+	return nil
+}
+
+func messageLoops(ctx context.Context, msgApp *message.App, conns *message.MemoryConns) {
+	t := time.NewTicker(time.Second)
+	defer t.Stop()
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-t.C:
+			nowMs := time.Now().UnixMilli()
+			if _, err := msgApp.DispatchDue(ctx, nowMs, 100); err != nil {
+				slog.Error("dispatch due", "err", err)
+			}
+			for ep, live := range conns.Snapshot() {
+				if err := msgApp.PushPending(ctx, ep, live.ConnID); err != nil {
+					slog.Debug("push pending", "endpoint", ep, "err", err)
+				}
+			}
+			if err := msgApp.CleanupOnce(ctx, nowMs); err != nil {
+				slog.Error("cleanup once", "err", err)
+			}
+		}
+	}
+}
+
+func staticFileHandler() http.Handler {
+	root := web.Dist()
+	for _, prefix := range []string{"dist", "stub"} {
+		sub, err := fs.Sub(root, prefix)
+		if err != nil {
+			continue
+		}
+		if f, err := sub.Open("index.html"); err == nil {
+			_ = f.Close()
+			return http.FileServer(http.FS(sub))
+		}
+	}
+	return http.FileServer(http.FS(root))
 }
 
 func writeListenAddr(dataDir, addr string) error {
@@ -145,7 +319,6 @@ func writeListenAddr(dataDir, addr string) error {
 	return os.WriteFile(path, []byte(addr+"\n"), 0o644)
 }
 
-// P-WIRE-BEGIN
 func setupJSONLogger(cfg config.LogConfig) {
 	level := slog.LevelInfo
 	switch strings.ToLower(strings.TrimSpace(cfg.Level)) {
@@ -159,5 +332,3 @@ func setupJSONLogger(cfg config.LogConfig) {
 	h := slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: level})
 	slog.SetDefault(slog.New(h))
 }
-
-// P-WIRE-END

cmd/nixmsg/uplink.go

@@ -0,0 +1,344 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"log/slog"
+
+	"git.asio.asia/nixevol/NixMsg/internal/app/group"
+	"git.asio.asia/nixevol/NixMsg/internal/app/identity"
+	"git.asio.asia/nixevol/NixMsg/internal/app/message"
+	"git.asio.asia/nixevol/NixMsg/internal/app/port"
+	"git.asio.asia/nixevol/NixMsg/internal/app/presence"
+	"git.asio.asia/nixevol/NixMsg/internal/protocol"
+)
+
+// appUplink 把 broker 生命周期接到消息连接表，并把已握手上行帧分发到各业务服务。
+type appUplink struct {
+	msg      *message.App
+	identity *identity.App
+	presence *presence.App
+	groups   *group.App
+	conns    *message.MemoryConns
+	down     port.Downlink
+	log      *slog.Logger
+}
+
+func (u *appUplink) OnSessionEstablished(ctx context.Context, conn port.ConnInfo) error {
+	u.conns.Set(conn.EndpointID, message.LiveConn{
+		ConnID:        conn.ConnID,
+		MaxPacketSize: conn.MaxPacketSize,
+	})
+	return nil
+}
+
+func (u *appUplink) OnHandshakeComplete(ctx context.Context, hs port.HandshakeInfo) error {
+	live := message.LiveConn{
+		ConnID:          hs.ConnID,
+		MaxReceiveBytes: hs.MaxReceiveBytes,
+		MaxPacketSize:   hs.MaxPacketSize,
+	}
+	u.conns.Set(hs.EndpointID, live)
+	if err := u.msg.OnHandshakeComplete(ctx, hs.EndpointID, live); err != nil {
+		u.log.Error("message handshake", "endpoint", hs.EndpointID, "err", err)
+		return err
+	}
+	return nil
+}
+
+func (u *appUplink) OnDisconnect(ctx context.Context, conn port.ConnInfo, reason port.DisconnectReason) {
+	if u.presence != nil {
+		u.presence.ClearWatch(conn.ConnID)
+	}
+	live, ok := u.conns.Current(conn.EndpointID)
+	isCurrent := ok && live.ConnID == conn.ConnID
+	if err := u.msg.OnDisconnect(ctx, conn.EndpointID, conn.ConnID, isCurrent); err != nil {
+		u.log.Error("message disconnect", "endpoint", conn.EndpointID, "err", err)
+	}
+	u.conns.Clear(conn.EndpointID, conn.ConnID)
+}
+
+func (u *appUplink) HandleUplink(ctx context.Context, conn port.ConnInfo, payload []byte) error {
+	frame, err := protocol.Decode(payload)
+	if err != nil {
+		u.replyErr(ctx, conn, peekRID(payload), protocol.CodeBadRequest, err.Error())
+		return nil
+	}
+
+	rid, data, callErr := u.dispatch(ctx, conn, frame)
+	if callErr != nil {
+		u.replyFromErr(ctx, conn, rid, callErr)
+		return nil
+	}
+	u.replyOK(ctx, conn, rid, data)
+	return nil
+}
+
+func (u *appUplink) dispatch(ctx context.Context, conn port.ConnInfo, frame any) (rid string, data any, err error) {
+	switch f := frame.(type) {
+	case *protocol.Send:
+		rid = f.RID
+		res, e := u.msg.Submit(ctx, conn.EndpointID, conn, f)
+		if e != nil {
+			return rid, nil, e
+		}
+		return rid, protocol.SendData{ID: res.ID, SendAtMs: res.SendAtMs, State: res.State}, nil
+
+	case *protocol.Ack:
+		rid = f.RID
+		res, e := u.msg.Ack(ctx, conn.EndpointID, f)
+		if e != nil {
+			return rid, nil, e
+		}
+		return rid, map[string]any{"result": res.Result}, nil
+
+	case *protocol.ReceiptAck:
+		rid = f.RID
+		return rid, nil, u.msg.ReceiptAck(ctx, conn.EndpointID, f)
+
+	case *protocol.Recall:
+		rid = f.RID
+		res, e := u.msg.Recall(ctx, conn.EndpointID, f)
+		if e != nil {
+			return rid, nil, e
+		}
+		return rid, res, nil
+
+	case *protocol.Status:
+		rid = f.RID
+		res, e := u.msg.Status(ctx, conn.EndpointID, f)
+		return rid, res, e
+
+	case *protocol.Unlock:
+		rid = f.RID
+		if e := f.Validate(); e != nil {
+			return rid, nil, e
+		}
+		return rid, nil, u.identity.UnlockTalk(ctx, conn.EndpointID, f.EndpointID, f.TalkPassword, conn.RemoteIP)
+
+	case *protocol.SelfGet:
+		rid = f.RID
+		info, e := u.identity.SelfGet(ctx, conn.EndpointID)
+		return rid, info, e
+
+	case *protocol.SelfUpdate:
+		rid = f.RID
+		return rid, nil, u.identity.SelfUpdate(ctx, conn.EndpointID, f)
+
+	case *protocol.SelfTalkPassword:
+		rid = f.RID
+		if e := f.Validate(); e != nil {
+			return rid, nil, e
+		}
+		return rid, nil, u.identity.SelfSetTalkPassword(ctx, conn.EndpointID, f.TalkPassword)
+
+	case *protocol.SelfLoginPassword:
+		rid = f.RID
+		if e := f.Validate(); e != nil {
+			return rid, nil, e
+		}
+		tok, e := u.identity.SelfChangeLoginPassword(ctx, conn.EndpointID, f.OldPassword, f.NewPassword, conn.RemoteIP)
+		if e != nil {
+			return rid, nil, e
+		}
+		return rid, map[string]any{"session_token": tok}, nil
+
+	case *protocol.PresenceGet:
+		rid = f.RID
+		if e := f.Validate(); e != nil {
+			return rid, nil, e
+		}
+		items, e := u.presence.Get(ctx, f.IDs)
+		if e != nil {
+			return rid, nil, e
+		}
+		return rid, presence.EncodeGetData(items), nil
+
+	case *protocol.DirectoryList:
+		rid = f.RID
+		items, next, e := u.presence.Directory(ctx, f)
+		if e != nil {
+			return rid, nil, e
+		}
+		return rid, map[string]any{"items": items, "next_cursor": next}, nil
+
+	case *protocol.PresenceWatch:
+		rid = f.RID
+		return rid, nil, u.presence.Watch(ctx, conn.ConnID, conn.EndpointID, f)
+
+	case *protocol.GroupCreate:
+		rid = f.RID
+		res, e := u.groups.Create(ctx, conn.EndpointID, f)
+		return rid, res, e
+
+	case *protocol.GroupAdd:
+		rid = f.RID
+		res, e := u.groups.Add(ctx, conn.EndpointID, f)
+		return rid, res, e
+
+	case *protocol.GroupRemove:
+		rid = f.RID
+		return rid, nil, u.groups.Remove(ctx, conn.EndpointID, f)
+
+	case *protocol.GroupLeave:
+		rid = f.RID
+		return rid, nil, u.groups.Leave(ctx, conn.EndpointID, f)
+
+	case *protocol.GroupTransfer:
+		rid = f.RID
+		return rid, nil, u.groups.Transfer(ctx, conn.EndpointID, f)
+
+	case *protocol.GroupRename:
+		rid = f.RID
+		return rid, nil, u.groups.Rename(ctx, conn.EndpointID, f)
+
+	case *protocol.GroupDissolve:
+		rid = f.RID
+		return rid, nil, u.groups.Dissolve(ctx, conn.EndpointID, f)
+
+	case *protocol.GroupList:
+		rid = f.RID
+		items, next, e := u.groups.List(ctx, conn.EndpointID, f)
+		if e != nil {
+			return rid, nil, e
+		}
+		return rid, map[string]any{"items": items, "next_cursor": next}, nil
+
+	case *protocol.GroupGet:
+		rid = f.RID
+		res, e := u.groups.Get(ctx, conn.EndpointID, f)
+		return rid, res, e
+
+	case *protocol.Hello, *protocol.SelfLogout:
+		// Session 已处理；不应落到此处。
+		rid = frameRID(frame)
+		return rid, nil, &protocol.Error{Code: protocol.CodeBadRequest, Message: "unexpected frame"}
+
+	default:
+		rid = frameRID(frame)
+		return rid, nil, &protocol.Error{Code: protocol.CodeBadRequest, Message: "unsupported uplink type"}
+	}
+}
+
+func (u *appUplink) replyOK(ctx context.Context, conn port.ConnInfo, rid string, data any) {
+	if rid == "" {
+		rid = "0"
+	}
+	var raw json.RawMessage
+	if data != nil {
+		b, err := protocol.Marshal(data)
+		if err != nil {
+			u.replyErr(ctx, conn, rid, protocol.CodeBusy, "marshal resp data")
+			return
+		}
+		raw = b
+	}
+	resp := protocol.Resp{V: protocol.Version, Type: protocol.TypeResp, RID: rid, OK: true, Data: raw}
+	u.publishResp(ctx, conn, resp)
+}
+
+func (u *appUplink) replyFromErr(ctx context.Context, conn port.ConnInfo, rid string, err error) {
+	if rid == "" {
+		rid = "0"
+	}
+	var pe *protocol.Error
+	if errors.As(err, &pe) && pe != nil {
+		u.replyErr(ctx, conn, rid, pe.Code, pe.Message)
+		return
+	}
+	u.log.Error("uplink handler", "endpoint", conn.EndpointID, "err", err)
+	u.replyErr(ctx, conn, rid, protocol.CodeBusy, "internal error")
+}
+
+func (u *appUplink) replyErr(ctx context.Context, conn port.ConnInfo, rid, code, message string) {
+	if rid == "" {
+		rid = "0"
+	}
+	resp := protocol.Resp{
+		V:     protocol.Version,
+		Type:  protocol.TypeResp,
+		RID:   rid,
+		OK:    false,
+		Error: &protocol.ErrorBody{Code: code, Message: message},
+	}
+	u.publishResp(ctx, conn, resp)
+}
+
+func (u *appUplink) publishResp(ctx context.Context, conn port.ConnInfo, resp protocol.Resp) {
+	if u.down == nil {
+		return
+	}
+	b, err := protocol.Marshal(resp)
+	if err != nil {
+		u.log.Error("marshal resp", "err", err)
+		return
+	}
+	if live, ok := u.conns.Current(conn.EndpointID); ok && live.ConnID == conn.ConnID {
+		limit := respPayloadLimit(live.MaxPacketSize, live.MaxReceiveBytes)
+		if limit > 0 && len(b) > limit {
+			tooLarge := protocol.Resp{
+				V:     protocol.Version,
+				Type:  protocol.TypeResp,
+				RID:   resp.RID,
+				OK:    false,
+				Error: &protocol.ErrorBody{Code: protocol.CodeResponseTooLarge, Message: "response too large"},
+			}
+			b, err = protocol.Marshal(tooLarge)
+			if err != nil {
+				return
+			}
+		}
+	}
+	if pubErr := u.down.PublishDown(ctx, conn.EndpointID, conn.ConnID, b, port.PublishOpts{QoS: 1}); pubErr != nil {
+		u.log.Error("publish resp", "endpoint", conn.EndpointID, "err", pubErr)
+	}
+}
+
+func respPayloadLimit(maxPacketSize uint32, maxRecvBytes int) int {
+	limit := 0
+	if maxRecvBytes > 0 {
+		limit = maxRecvBytes
+	}
+	if maxPacketSize > 0 {
+		n := int(maxPacketSize)
+		if limit == 0 || n < limit {
+			limit = n
+		}
+	}
+	return limit
+}
+
+func peekRID(payload []byte) string {
+	var peek struct {
+		RID string `json:"rid"`
+	}
+	_ = json.Unmarshal(payload, &peek)
+	return peek.RID
+}
+
+func frameRID(frame any) string {
+	b, err := protocol.Marshal(frame)
+	if err != nil {
+		return ""
+	}
+	return peekRID(b)
+}
+
+// presenceConnTable 把消息连接表暴露给 presence.ConnTable。
+type presenceConnTable struct {
+	conns *message.MemoryConns
+}
+
+func (p *presenceConnTable) IsOnline(endpointID string) bool {
+	_, ok := p.conns.Current(endpointID)
+	return ok
+}
+
+func (p *presenceConnTable) CurrentConn(endpointID string) (port.ConnID, bool) {
+	live, ok := p.conns.Current(endpointID)
+	if !ok {
+		return "", false
+	}
+	return live.ConnID, true
+}

cmd/nixmsg/uplink_integration_test.go

@@ -0,0 +1,459 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"io"
+	"net/http"
+	"strings"
+	"sync"
+	"testing"
+	"time"
+
+	"git.asio.asia/nixevol/NixMsg/internal/config"
+	"git.asio.asia/nixevol/NixMsg/internal/protocol"
+	"git.asio.asia/nixevol/NixMsg/test/harness"
+	"github.com/mochi-mqtt/server/v2/packets"
+)
+
+// TestUplinkDMOfflineGroupRecall 用真实进程验证上行分发：单聊、离线保留、群发不含发送者、延迟内撤回。
+func TestUplinkDMOfflineGroupRecall(t *testing.T) {
+	dataDir := t.TempDir()
+	cfgPath := writeTestConfig(t, dataDir)
+	initAdminForTest(t, dataDir)
+	enableRegistration(t, dataDir, "uplink-code")
+
+	cfg, err := config.Load(cfgPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if vErr := cfg.Validate(); vErr != nil {
+		t.Fatal(vErr)
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	errCh := make(chan error, 1)
+	go func() { errCh <- runServe(ctx, cfg) }()
+	defer func() {
+		cancel()
+		select {
+		case err := <-errCh:
+			if err != nil {
+				t.Errorf("serve exit: %v", err)
+			}
+		case <-time.After(15 * time.Second):
+			t.Error("serve did not stop")
+		}
+	}()
+
+	addr := waitListenAddr(t, dataDir, 15*time.Second)
+	base := "http://" + addr
+
+	registerEP(t, base, "alice", "password12", "Alice")
+	registerEP(t, base, "bob", "password12", "Bob")
+	registerEP(t, base, "carol", "password12", "Carol")
+
+	alice := mqttSessionLogin(t, base, "alice", "password12")
+	defer alice.Close()
+	bob := mqttSessionLogin(t, base, "bob", "password12")
+	defer bob.Close()
+
+	// 1) 两端在线单聊：bob 收到 msg
+	delay0 := int64(0)
+	sendResp := alice.Request(t, map[string]any{
+		"v": 1, "type": "send", "rid": "s1", "id": "dm-1",
+		"to":       map[string]any{"kind": "endpoint", "id": "bob"},
+		"body":     map[string]any{"enc": "utf8", "data": "hello-bob"},
+		"delay_ms": delay0,
+	})
+	if !sendResp.OK {
+		t.Fatalf("send dm: %+v", sendResp)
+	}
+	msg := bob.WaitType(t, "msg", 8*time.Second)
+	if msg["id"] != "dm-1" || msg["from"] != "alice" {
+		t.Fatalf("bob msg=%v", msg)
+	}
+	body, _ := msg["body"].(map[string]any)
+	if body["data"] != "hello-bob" {
+		t.Fatalf("body=%v", body)
+	}
+	// 确认以免窗口占满
+	bob.Request(t, map[string]any{"v": 1, "type": "ack", "rid": "a1", "from": "alice", "id": "dm-1"})
+
+	// 2) 离线保留：carol 离线时 alice 发送，carol 稍后上线能收到
+	keep := true
+	ttl := int64(86400)
+	sendOff := alice.Request(t, map[string]any{
+		"v": 1, "type": "send", "rid": "s2", "id": "off-1",
+		"to":       map[string]any{"kind": "endpoint", "id": "carol"},
+		"body":     map[string]any{"enc": "utf8", "data": "for-carol"},
+		"delay_ms": delay0,
+		"offline":  map[string]any{"keep": keep, "ttl_seconds": ttl},
+	})
+	if !sendOff.OK {
+		t.Fatalf("send offline: %+v", sendOff)
+	}
+	carol := mqttSessionLogin(t, base, "carol", "password12")
+	defer carol.Close()
+	offMsg := carol.WaitType(t, "msg", 8*time.Second)
+	if offMsg["id"] != "off-1" {
+		t.Fatalf("carol offline msg=%v", offMsg)
+	}
+	carol.Request(t, map[string]any{"v": 1, "type": "ack", "rid": "a2", "from": "alice", "id": "off-1"})
+
+	// 3) 建群后群发：bob、carol 收到，alice 自己不收到
+	createResp := alice.Request(t, map[string]any{
+		"v": 1, "type": "group.create", "rid": "g1", "id": "g_uplink1", "name": "U",
+		"members": []map[string]any{{"id": "bob"}, {"id": "carol"}},
+	})
+	if !createResp.OK {
+		t.Fatalf("group.create: %+v", createResp)
+	}
+	// 排空建群带来的 group_event，避免干扰后续断言
+	drainEvents(t, bob, 500*time.Millisecond)
+	drainEvents(t, carol, 500*time.Millisecond)
+	drainEvents(t, alice, 300*time.Millisecond)
+
+	grpSend := alice.Request(t, map[string]any{
+		"v": 1, "type": "send", "rid": "s3", "id": "grp-1",
+		"to":       map[string]any{"kind": "group", "id": "g_uplink1"},
+		"body":     map[string]any{"enc": "utf8", "data": "hi-group"},
+		"delay_ms": delay0,
+	})
+	if !grpSend.OK {
+		t.Fatalf("group send: %+v", grpSend)
+	}
+	bobGrp := bob.WaitType(t, "msg", 8*time.Second)
+	carolGrp := carol.WaitType(t, "msg", 8*time.Second)
+	if bobGrp["id"] != "grp-1" || carolGrp["id"] != "grp-1" {
+		t.Fatalf("bob=%v carol=%v", bobGrp, carolGrp)
+	}
+	if got := alice.TryType("msg", 800*time.Millisecond); got != nil {
+		t.Fatalf("sender must not receive own group msg: %v", got)
+	}
+	bob.Request(t, map[string]any{"v": 1, "type": "ack", "rid": "a3", "from": "alice", "id": "grp-1"})
+	carol.Request(t, map[string]any{"v": 1, "type": "ack", "rid": "a4", "from": "alice", "id": "grp-1"})
+
+	// 4) 延迟内撤回：对方无 msg / revoked 回调
+	delayMs := int64(60_000)
+	sched := alice.Request(t, map[string]any{
+		"v": 1, "type": "send", "rid": "s4", "id": "rec-1",
+		"to":       map[string]any{"kind": "endpoint", "id": "bob"},
+		"body":     map[string]any{"enc": "utf8", "data": "will-recall"},
+		"delay_ms": delayMs,
+	})
+	if !sched.OK {
+		t.Fatalf("scheduled send: %+v", sched)
+	}
+	data, _ := sched.Data.(map[string]any)
+	if data["state"] != "scheduled" {
+		t.Fatalf("want scheduled got %v", data)
+	}
+	rec := alice.Request(t, map[string]any{"v": 1, "type": "recall", "rid": "r1", "id": "rec-1"})
+	if !rec.OK {
+		t.Fatalf("recall: %+v", rec)
+	}
+	if got := bob.TryType("msg", 1*time.Second); got != nil {
+		t.Fatalf("bob should not get recalled msg: %v", got)
+	}
+	if got := bob.TryType("revoked", 500*time.Millisecond); got != nil {
+		t.Fatalf("bob should not get revoked for undelivered: %v", got)
+	}
+}
+
+func registerEP(t *testing.T, base, id, password, name string) {
+	t.Helper()
+	body := `{"registration_code":"uplink-code","id":"` + id + `","login_password":"` + password + `","name":"` + name + `"}`
+	resp, err := http.Post(base+"/api/client/register", "application/json", strings.NewReader(body))
+	if err != nil {
+		t.Fatal(err)
+	}
+	raw, _ := io.ReadAll(resp.Body)
+	_ = resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		t.Fatalf("register %s: %d %s", id, resp.StatusCode, raw)
+	}
+}
+
+type mqttSess struct {
+	t          *testing.T
+	mc         harness.MQTTClient
+	endpointID string
+	pktID      uint16
+	mu         sync.Mutex
+	inbox      []map[string]any
+	closed     bool
+	done       chan struct{}
+}
+
+type appResp struct {
+	OK    bool
+	Error map[string]any
+	Data  any
+	Raw   map[string]any
+}
+
+func mqttSessionLogin(t *testing.T, httpBase, endpointID, password string) *mqttSess {
+	t.Helper()
+	mc, err := harness.DialMQTTWebSocket(httpBase, 10*time.Second)
+	if err != nil {
+		t.Fatalf("dial: %v", err)
+	}
+	s := &mqttSess{t: t, mc: mc, endpointID: endpointID, pktID: 10, done: make(chan struct{})}
+	s.connectSubscribeHello(password)
+	go s.readLoop()
+	return s
+}
+
+func (s *mqttSess) Close() {
+	s.mu.Lock()
+	if s.closed {
+		s.mu.Unlock()
+		return
+	}
+	s.closed = true
+	s.mu.Unlock()
+	_ = s.mc.Close()
+	select {
+	case <-s.done:
+	case <-time.After(3 * time.Second):
+	}
+}
+
+func (s *mqttSess) nextPkt() uint16 {
+	s.pktID++
+	if s.pktID == 0 {
+		s.pktID = 1
+	}
+	return s.pktID
+}
+
+func (s *mqttSess) connectSubscribeHello(password string) {
+	t := s.t
+	pk := packets.Packet{
+		FixedHeader:     packets.FixedHeader{Type: packets.Connect},
+		ProtocolVersion: 5,
+		Connect: packets.ConnectParams{
+			ProtocolName:     []byte("MQTT"),
+			Clean:            true,
+			ClientIdentifier: s.endpointID,
+			Keepalive:        30,
+			UsernameFlag:     true,
+			Username:         []byte(s.endpointID),
+			PasswordFlag:     true,
+			Password:         []byte(password),
+		},
+	}
+	var buf bytes.Buffer
+	if err := pk.ConnectEncode(&buf); err != nil {
+		t.Fatal(err)
+	}
+	if err := s.mc.Send(buf.Bytes()); err != nil {
+		t.Fatal(err)
+	}
+	ack, err := s.mc.Recv()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(ack) < 4 || ack[0]>>4 != packets.Connack || ack[3] != 0 {
+		t.Fatalf("connack %x", ack)
+	}
+
+	sub := packets.Packet{
+		FixedHeader:     packets.FixedHeader{Type: packets.Subscribe, Qos: 1},
+		ProtocolVersion: 5,
+		PacketID:        s.nextPkt(),
+		Filters: packets.Subscriptions{
+			{Filter: "nix/c/" + s.endpointID + "/down", Qos: 1},
+		},
+	}
+	buf.Reset()
+	if err := sub.SubscribeEncode(&buf); err != nil {
+		t.Fatal(err)
+	}
+	if err := s.mc.Send(buf.Bytes()); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := s.mc.Recv(); err != nil {
+		t.Fatal(err)
+	}
+
+	hello, _ := protocol.Marshal(protocol.Hello{V: protocol.Version, Type: protocol.TypeHello, RID: "h0"})
+	s.publishRaw(hello)
+	deadline := time.Now().Add(10 * time.Second)
+	for time.Now().Before(deadline) {
+		raw, err := s.mc.Recv()
+		if err != nil {
+			t.Fatal(err)
+		}
+		m := s.handlePacket(raw)
+		if m == nil {
+			continue
+		}
+		if m["type"] == "resp" && m["ok"] == true {
+			return
+		}
+		if m["type"] == "resp" {
+			t.Fatalf("hello failed: %v", m)
+		}
+		s.push(m)
+	}
+	t.Fatal("hello timeout")
+}
+
+func (s *mqttSess) publishRaw(payload []byte) {
+	t := s.t
+	pub := packets.Packet{
+		FixedHeader:     packets.FixedHeader{Type: packets.Publish, Qos: 1},
+		ProtocolVersion: 5,
+		TopicName:       "nix/c/" + s.endpointID + "/up",
+		PacketID:        s.nextPkt(),
+		Payload:         payload,
+	}
+	var buf bytes.Buffer
+	if err := pub.PublishEncode(&buf); err != nil {
+		t.Fatal(err)
+	}
+	if err := s.mc.Send(buf.Bytes()); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func (s *mqttSess) readLoop() {
+	defer close(s.done)
+	for {
+		raw, err := s.mc.Recv()
+		if err != nil {
+			return
+		}
+		m := s.handlePacket(raw)
+		if m != nil {
+			s.push(m)
+		}
+	}
+}
+
+func (s *mqttSess) handlePacket(raw []byte) map[string]any {
+	if len(raw) < 2 {
+		return nil
+	}
+	typ := raw[0] >> 4
+	qos := (raw[0] >> 1) & 0x3
+	switch typ {
+	case packets.Puback, packets.Pingresp, packets.Suback:
+		return nil
+	case packets.Publish:
+		payload, err := decodePublishPayload(raw)
+		if err != nil {
+			return nil
+		}
+		if qos == 1 {
+			// 回 PUBACK
+			rem, n, _ := decodeRemainingLength(raw[1:])
+			body := raw[1+n:]
+			pk := packets.Packet{ProtocolVersion: 5, FixedHeader: packets.FixedHeader{Type: packets.Publish, Remaining: rem, Qos: qos}}
+			if decErr := pk.PublishDecode(body); decErr == nil && pk.PacketID != 0 {
+				ack := packets.Packet{
+					FixedHeader:     packets.FixedHeader{Type: packets.Puback},
+					ProtocolVersion: 5,
+					PacketID:        pk.PacketID,
+				}
+				var buf bytes.Buffer
+				if encErr := ack.PubackEncode(&buf); encErr == nil {
+					_ = s.mc.Send(buf.Bytes())
+				}
+			}
+		}
+		var m map[string]any
+		if json.Unmarshal(payload, &m) != nil {
+			return nil
+		}
+		return m
+	default:
+		return nil
+	}
+}
+
+func (s *mqttSess) push(m map[string]any) {
+	s.mu.Lock()
+	s.inbox = append(s.inbox, m)
+	s.mu.Unlock()
+}
+
+func (s *mqttSess) Request(t *testing.T, frame map[string]any) appResp {
+	t.Helper()
+	rid, _ := frame["rid"].(string)
+	payload, err := protocol.Marshal(frame)
+	if err != nil {
+		t.Fatal(err)
+	}
+	s.publishRaw(payload)
+	deadline := time.Now().Add(10 * time.Second)
+	for time.Now().Before(deadline) {
+		m := s.takeMatching(func(x map[string]any) bool {
+			return x["type"] == "resp" && x["rid"] == rid
+		})
+		if m != nil {
+			r := appResp{OK: m["ok"] == true, Raw: m, Data: m["data"]}
+			if e, ok := m["error"].(map[string]any); ok {
+				r.Error = e
+			}
+			return r
+		}
+		time.Sleep(5 * time.Millisecond)
+	}
+	t.Fatalf("timeout waiting resp rid=%s", rid)
+	return appResp{}
+}
+
+func (s *mqttSess) WaitType(t *testing.T, typ string, timeout time.Duration) map[string]any {
+	t.Helper()
+	deadline := time.Now().Add(timeout)
+	for time.Now().Before(deadline) {
+		m := s.takeMatching(func(x map[string]any) bool { return x["type"] == typ })
+		if m != nil {
+			return m
+		}
+		time.Sleep(5 * time.Millisecond)
+	}
+	t.Fatalf("timeout waiting type=%s", typ)
+	return nil
+}
+
+func (s *mqttSess) TryType(typ string, timeout time.Duration) map[string]any {
+	deadline := time.Now().Add(timeout)
+	for time.Now().Before(deadline) {
+		m := s.takeMatching(func(x map[string]any) bool { return x["type"] == typ })
+		if m != nil {
+			return m
+		}
+		time.Sleep(10 * time.Millisecond)
+	}
+	return nil
+}
+
+func (s *mqttSess) takeMatching(pred func(map[string]any) bool) map[string]any {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	for i, m := range s.inbox {
+		if pred(m) {
+			s.inbox = append(s.inbox[:i], s.inbox[i+1:]...)
+			return m
+		}
+	}
+	return nil
+}
+
+func drainEvents(t *testing.T, s *mqttSess, d time.Duration) {
+	t.Helper()
+	deadline := time.Now().Add(d)
+	for time.Now().Before(deadline) {
+		_ = s.takeMatching(func(x map[string]any) bool {
+			typ, _ := x["type"].(string)
+			return typ == "group_event" || typ == "presence"
+		})
+		time.Sleep(20 * time.Millisecond)
+	}
+}

cmd/nixmsg/wire.go

@@ -9,7 +9,7 @@ import (
 	"git.asio.asia/nixevol/NixMsg/internal/auth"
 )
 
-// appDeps 是 serve 组装出的模块依赖。各线在后续任务中替换假实现为真实实现。
+// appDeps 是组装出的模块依赖（测试与骨架仍可调用 wire）。
 type appDeps struct {
 	HashPool      auth.HashPool
 	SessionTokens auth.SessionTokens
@@ -26,13 +26,13 @@ type appDeps struct {
 	Conns    port.ConnControl
 }
 
-// wire 组装各业务模块的骨架依赖（T0.4：假实现；后续各线替换）。
+// wire 返回真实 auth 实现与空业务桩（无 DB 时的轻量装配；正式 serve 走 assembleRuntime）。
 func wire() appDeps {
 	return appDeps{
-		HashPool:      auth.NewStubHashPool(),
-		SessionTokens: auth.NewStubSessionTokens(),
-		APITokens:     auth.NewStubAPITokens(),
-		LoginLocks:    auth.NewStubLoginLocks(),
+		HashPool:      auth.NewPool(),
+		SessionTokens: auth.NewSessionTokens(),
+		APITokens:     auth.NewAPITokens(),
+		LoginLocks:    auth.NewLoginLocks(),
 
 		Messages: message.NewStub(),
 		Identity: identity.NewStub(),

cmd/nixmsg/wire_integration_test.go

@@ -0,0 +1,313 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"database/sql"
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/cookiejar"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"git.asio.asia/nixevol/NixMsg/internal/config"
+	"git.asio.asia/nixevol/NixMsg/internal/protocol"
+	"git.asio.asia/nixevol/NixMsg/internal/store"
+	"git.asio.asia/nixevol/NixMsg/test/harness"
+	"github.com/mochi-mqtt/server/v2/packets"
+)
+
+func TestWireAdminLoginRegisterMQTTHandshake(t *testing.T) {
+	dataDir := t.TempDir()
+	cfgPath := writeTestConfig(t, dataDir)
+	initAdminForTest(t, dataDir)
+	enableRegistration(t, dataDir, "wire-code-99")
+
+	cfg, err := config.Load(cfgPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if vErr := cfg.Validate(); vErr != nil {
+		t.Fatal(vErr)
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	errCh := make(chan error, 1)
+	go func() { errCh <- runServe(ctx, cfg) }()
+
+	addr := waitListenAddr(t, dataDir, 15*time.Second)
+	base := "http://" + addr
+
+	// 1) admin init 后真实进程可管理登录
+	jar, err := cookiejar.New(nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	client := &http.Client{Jar: jar, Timeout: 10 * time.Second}
+	loginBody, _ := json.Marshal(map[string]string{
+		"username": "admin",
+		"password": "test-admin-password-xx",
+	})
+	resp, err := client.Post(base+"/api/admin/login", "application/json", bytes.NewReader(loginBody))
+	if err != nil {
+		t.Fatalf("admin login: %v", err)
+	}
+	body, _ := io.ReadAll(resp.Body)
+	_ = resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		t.Fatalf("admin login status=%d body=%s", resp.StatusCode, body)
+	}
+	var loginEnv struct {
+		OK bool `json:"ok"`
+	}
+	if uErr := json.Unmarshal(body, &loginEnv); uErr != nil || !loginEnv.OK {
+		t.Fatalf("admin login resp=%s", body)
+	}
+
+	// 2) 已写入注册开关与安全码后可注册
+	regBody := `{"registration_code":"wire-code-99","id":"ep_wire1","login_password":"password12","name":"接线端"}`
+	regResp, err := http.Post(base+"/api/client/register", "application/json", strings.NewReader(regBody))
+	if err != nil {
+		t.Fatalf("register: %v", err)
+	}
+	regBytes, _ := io.ReadAll(regResp.Body)
+	_ = regResp.Body.Close()
+	if regResp.StatusCode != http.StatusOK {
+		t.Fatalf("register status=%d body=%s", regResp.StatusCode, regBytes)
+	}
+	var regEnv struct {
+		OK   bool `json:"ok"`
+		Data struct {
+			ID string `json:"id"`
+		} `json:"data"`
+	}
+	if uErr := json.Unmarshal(regBytes, &regEnv); uErr != nil || !regEnv.OK || regEnv.Data.ID != "ep_wire1" {
+		t.Fatalf("register resp=%s", regBytes)
+	}
+
+	// 3) 注册出的端用密码完成 MQTT 握手并拿到 session_token
+	tok := mqttPasswordHandshake(t, base, "ep_wire1", "password12")
+	if tok == "" || !strings.HasPrefix(tok, protocol.SessionTokenPrefix) {
+		t.Fatalf("session_token=%q", tok)
+	}
+
+	cancel()
+	select {
+	case err := <-errCh:
+		if err != nil {
+			t.Fatalf("serve exit: %v", err)
+		}
+	case <-time.After(15 * time.Second):
+		t.Fatal("serve did not stop")
+	}
+}
+
+func mqttPasswordHandshake(t *testing.T, httpBase, endpointID, password string) string {
+	t.Helper()
+	mc, err := harness.DialMQTTWebSocket(httpBase, 10*time.Second)
+	if err != nil {
+		t.Fatalf("dial mqtt ws: %v", err)
+	}
+	defer func() { _ = mc.Close() }()
+
+	pk := packets.Packet{
+		FixedHeader:     packets.FixedHeader{Type: packets.Connect},
+		ProtocolVersion: 5,
+		Connect: packets.ConnectParams{
+			ProtocolName:     []byte("MQTT"),
+			Clean:            true,
+			ClientIdentifier: endpointID,
+			Keepalive:        30,
+			UsernameFlag:     true,
+			Username:         []byte(endpointID),
+			PasswordFlag:     true,
+			Password:         []byte(password),
+		},
+	}
+	var buf bytes.Buffer
+	if encErr := pk.ConnectEncode(&buf); encErr != nil {
+		t.Fatal(encErr)
+	}
+	if sendErr := mc.Send(buf.Bytes()); sendErr != nil {
+		t.Fatal(sendErr)
+	}
+	ack, err := mc.Recv()
+	if err != nil {
+		t.Fatalf("connack: %v", err)
+	}
+	if len(ack) < 2 || ack[0]>>4 != packets.Connack {
+		t.Fatalf("want CONNACK, got %x", ack)
+	}
+	// MQTT5 CONNACK: remaining length, flags, reason code
+	reason := byte(0)
+	if len(ack) >= 4 {
+		reason = ack[3]
+	}
+	if reason != 0 {
+		t.Fatalf("connack reason=%d raw=%x", reason, ack)
+	}
+
+	sub := packets.Packet{
+		FixedHeader:     packets.FixedHeader{Type: packets.Subscribe, Qos: 1},
+		ProtocolVersion: 5,
+		PacketID:        1,
+		Filters: packets.Subscriptions{
+			{Filter: "nix/c/" + endpointID + "/down", Qos: 1},
+		},
+	}
+	buf.Reset()
+	if err := sub.SubscribeEncode(&buf); err != nil {
+		t.Fatal(err)
+	}
+	if err := mc.Send(buf.Bytes()); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := mc.Recv(); err != nil { // SUBACK
+		t.Fatalf("suback: %v", err)
+	}
+
+	hello, _ := protocol.Marshal(protocol.Hello{
+		V: protocol.Version, Type: protocol.TypeHello, RID: "h1",
+	})
+	pub := packets.Packet{
+		FixedHeader:     packets.FixedHeader{Type: packets.Publish, Qos: 1},
+		ProtocolVersion: 5,
+		TopicName:       "nix/c/" + endpointID + "/up",
+		PacketID:        2,
+		Payload:         hello,
+	}
+	buf.Reset()
+	if err := pub.PublishEncode(&buf); err != nil {
+		t.Fatal(err)
+	}
+	if err := mc.Send(buf.Bytes()); err != nil {
+		t.Fatal(err)
+	}
+
+	deadline := time.Now().Add(10 * time.Second)
+	for time.Now().Before(deadline) {
+		raw, err := mc.Recv()
+		if err != nil {
+			t.Fatalf("recv down: %v", err)
+		}
+		if len(raw) < 2 {
+			continue
+		}
+		typ := raw[0] >> 4
+		if typ == packets.Puback || typ == packets.Pingresp {
+			continue
+		}
+		if typ != packets.Publish {
+			continue
+		}
+		payload, err := decodePublishPayload(raw)
+		if err != nil {
+			t.Fatalf("publish decode: %v raw=%x", err, raw)
+		}
+		var m map[string]any
+		if err := json.Unmarshal(payload, &m); err != nil {
+			t.Fatalf("json: %v payload=%s", err, payload)
+		}
+		if m["type"] == "resp" {
+			if tok := extractSessionToken(m); tok != "" {
+				return tok
+			}
+			t.Fatalf("hello resp without token: %v", m)
+		}
+	}
+	t.Fatal("timeout waiting hello resp")
+	return ""
+}
+
+func decodePublishPayload(raw []byte) ([]byte, error) {
+	rem, n, err := decodeRemainingLength(raw[1:])
+	if err != nil {
+		return nil, err
+	}
+	body := raw[1+n:]
+	if len(body) != rem {
+		return nil, io.ErrUnexpectedEOF
+	}
+	pk := packets.Packet{
+		ProtocolVersion: 5,
+		FixedHeader: packets.FixedHeader{
+			Type:      packets.Publish,
+			Remaining: rem,
+			Qos:       (raw[0] >> 1) & 0x3,
+		},
+	}
+	if err := pk.PublishDecode(body); err != nil {
+		return nil, err
+	}
+	return pk.Payload, nil
+}
+
+func decodeRemainingLength(b []byte) (value int, n int, err error) {
+	var mul uint32 = 1
+	var v uint32
+	for i := 0; i < len(b) && i < 4; i++ {
+		v += uint32(b[i]&127) * mul
+		n++
+		if b[i]&128 == 0 {
+			return int(v), n, nil
+		}
+		mul *= 128
+	}
+	return 0, 0, io.ErrUnexpectedEOF
+}
+
+func extractSessionToken(m map[string]any) string {
+	if m["ok"] != true {
+		return ""
+	}
+	data, _ := m["data"].(map[string]any)
+	tok, _ := data["session_token"].(string)
+	return tok
+}
+
+func enableRegistration(t *testing.T, dataDir, code string) {
+	t.Helper()
+	db, err := store.Open(dataDir, "FULL")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer func() { _ = db.Close() }()
+	now := time.Now().UnixMilli()
+	err = db.Queue.Do(context.Background(), func(tx *sql.Tx) error {
+		if _, e := tx.Exec(`INSERT INTO settings(key, value, updated_at) VALUES(?,?,?)
+ON CONFLICT(key) DO UPDATE SET value=excluded.value, updated_at=excluded.updated_at`,
+			"registration_enabled", "1", now); e != nil {
+			return e
+		}
+		_, e := tx.Exec(`INSERT INTO settings(key, value, updated_at) VALUES(?,?,?)
+ON CONFLICT(key) DO UPDATE SET value=excluded.value, updated_at=excluded.updated_at`,
+			"registration_code", code, now)
+		return e
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func waitListenAddr(t *testing.T, dataDir string, timeout time.Duration) string {
+	t.Helper()
+	deadline := time.Now().Add(timeout)
+	path := filepath.Join(dataDir, "listen.addr")
+	for time.Now().Before(deadline) {
+		b, err := os.ReadFile(path)
+		if err == nil {
+			addr := strings.TrimSpace(string(b))
+			if addr != "" {
+				return addr
+			}
+		}
+		time.Sleep(20 * time.Millisecond)
+	}
+	t.Fatal("listen.addr not written")
+	return ""
+}

docs/DEVIATIONS.md

@@ -43,6 +43,66 @@
    - 备选方案：docker 目标仅 echo 提示。  
    - 影响：镜像发布流程仍由 Q4 定稿。
 
+### L-WIRE 2026-09-30
+
+1. **serve 真实接线范围**  
+   - 原条款：TASKS 总控接线；listener/broker/admin/注册/消息周期循环挂到进程。  
+   - 实际做法：`cmd/nixmsg/serve.go` 注入真实 `auth.NewPool`/`NewSessionTokens`/`NewAPITokens`/`NewLoginLocks`，挂注册与管理路由（踢线调 `Session.Kick`），listener 识别 HTTP/WebSocket/`OnMQTT` 裸 TCP，broker `Login`+`Session`，握手/断线/`OnPublishDropped` 接到 `message.App`，周期 `DispatchDue`/`PushPending`/`CleanupOnce`，下行 `PublishDown`。集成测覆盖：管理登录、写 settings 后注册、密码 MQTT 握手拿 `session_token`。  
+   - 原因：第二波收尾；三件验收必须通。  
+   - 备选方案：分文件多阶段接线。  
+   - 影响：进程可对外登录/注册/握手。
+
+2. **未接线 / 未完成部分（已被 L-UPLINK 部分取代）**  
+   - 原条款：上行应用帧完整分发到 identity/group/presence/message 业务方法。  
+   - 实际做法（L-WIRE 当时）：`Session` 处理 hello/logout；其余 `HandleUplink` 仍为 Stub。管理注册设置 HTTP（A3）未实现，测试直接写 `settings` 表。  
+   - 原因：本波强制三件验收；完整协议分发属后续波次。  
+   - 备选方案：本波同时实现 HandleUplink 大 multiplex。  
+   - 影响：见 L-UPLINK。
+
+3. **listen.addr 始终写入**  
+   - 原条款：listener N1 仅端口 0 写文件；T0.1 超集为启动即写。  
+   - 实际做法：listener 按 N1 写端口 0；serve 成功后再强制写一次 `listen.addr`（及分离时的 `admin.addr`）。  
+   - 原因：与 harness / T0.1 一致。  
+   - 备选方案：改 listener 始终写。  
+   - 影响：固定端口也会有地址文件。
+
+### L-UPLINK 2026-09-30
+
+1. **HandleUplink 分发到已有业务服务**  
+   - 原条款：TASKS 总控接线；DEVELOPMENT 第 6 节上行帧由服务端处理后回 `resp`；群事件/在线通知/消息走下行。  
+   - 实际做法：`cmd/nixmsg/uplink.go` 的 `appUplink` 在已握手连接上解码并调用 `message`/`identity`/`presence`/`group` 的既有方法；结果编成 `resp` 经 `PublishDown`（QoS 1）回本连接。`Session` 仍独占 `hello`/`self.logout` 与未握手 `not_ready`。`serve` 把四个 App 与 broker Downlink 注入 uplink。不重写业务状态机。  
+   - 原因：main 上业务实现已齐，缺上行入口。  
+   - 备选方案：各包自建 MQTT 钩子（与 port 契约不符）。  
+   - 影响：端侧 send/ack/recall/status/unlock/self.*/presence.*/directory.list/group.* 可走真实进程。
+
+2. **presence.get 未知编号编码**  
+   - 原条款：DEVELOPMENT 6.5「未知编号为 not_found」；`StatusItem.NotFound` 为内部标记。  
+   - 实际做法：`presence.EncodeGetData` 薄封装，resp data 为 `{"items":[...]}`；未知项 `{"id","not_found":true}`，已知项含 `id`/`online`/`since_ms`。  
+   - 原因：Service 层未规定 JSON 形状，接线需固定可编解码形式。  
+   - 备选方案：整请求失败 `not_found`；或把 `not_found` 塞进 `online` 旁字符串字段。  
+   - 影响：SDK 若只认 items 数组两种形状均可（Go SDK 已兼容 wrap/array）。
+
+3. **resp 超限改发 response_too_large**  
+   - 原条款：DEVELOPMENT 7.5「resp 超限改发 response_too_large」。  
+   - 实际做法：发布前按连接表 `MaxReceiveBytes` 与 `MaxPacketSize` 取较小正上限；超限则改发错误 resp（不再发原 data）。未做 MQTT 包头开销扣减（与 message 推送里的 overhead 预算不完全同一函数）。  
+   - 原因：接线层最小可用检查。  
+   - 备选方案：复用 `message.effectivePayloadLimit`（未导出）。  
+   - 影响：接近包上限的大分页可能比推送路径略严或略松。
+
+4. **断线清 presence.watch**  
+   - 原条款：presence.watch 断线清空。  
+   - 实际做法：`OnDisconnect` 额外调 `ClearWatch`；`SetOffline` 路径本身也会清。顶号旧连接未走 `SetOffline(isCurrent)` 时仍能清订阅。  
+   - 原因：避免旧连接订阅泄漏。  
+   - 备选方案：仅依赖 Session 对 isCurrent 调 SetOffline。  
+   - 影响：无。
+
+5. **仍未接线 / 本波未覆盖**  
+   - 管理注册设置 HTTP（A3）仍未挂；集成测继续写 `settings` 表开注册。  
+   - 下行通知帧（`msg`/`receipt`/`revoked`/`presence`/`group_event`/`fatal`）不是上行分发对象，由既有服务经 PublishDown 发出。  
+   - `self.logout`/`hello` 仍在 Session，不经 appUplink。  
+   - 身份 I5 停用/删除级联、管理端群等非本任务范围。  
+   - 集成测覆盖：双端单聊、离线 keep 后上线、群发不含发送者、延迟内撤回对方无回调；未穷尽 presence.watch 通知与全部 group.* 变体。
+
 ### T0.2 2026-09-30
 
 1. **请求指纹规范化格式**  
@@ -499,6 +559,29 @@
    - 备选方案：测试里注入在线连接表使默认不保留也走 pending（与「离线不保留」场景重复覆盖）。  
    - 影响：仅测试期望；产品行为不变。
 
+### I5 2026-09-30
+
+1. **停用/删除级联在 identity 包内完成，admin 可选注入**  
+   - 原条款：DEVELOPMENT 7.6 / PRD F01；TASKS I5「提供给 A 线调用」。  
+   - 实际做法：`identity.App.Disable`/`Enable`/`Delete` 在一个写操作里完成启停、清令牌、作废消息/投递、发 `revoked`（可选 Downlink）、退群/转让群主/解散、清授权/回执/防重/发出记录。`admin.Deps.Identity` 非空时，`setEndpointEnabled`/`deleteEndpointBasic`（及 PATCH enabled）委托上述方法；为空时保留 A2 仅改库行为。未改 `cmd/nixmsg`、未改消息上行分发。  
+   - 原因：隔离要求不改接线；A 线已有路由，只接级联。  
+   - 备选方案：在 admin 内复制级联 SQL；或强制 Identity 必填。  
+   - 影响：生产须在挂载 admin 时注入 `identity.App`（及 KickEndpoint/ConnControl/Downlink），否则停用/删除仍无完整作废。
+
+2. **消息级作废回执 state 用 `rejected`**  
+   - 原条款：DEVELOPMENT 6.4 消息级作废写 `endpoint_id` 空、`state=rejected`；I4 解散群对 scheduled 曾写 `completed`。  
+   - 实际做法：I5 对「发给停用/删除端的 scheduled 单聊」及删除时解散群的 scheduled，回执 `state=rejected`，原因分别为 `endpoint_*` / `group_dissolved`。  
+   - 原因：与 6.4 字面一致。  
+   - 备选方案：与 I4 一样写 `completed`。  
+   - 影响：后台/SDK 若按 state 过滤回执需同时认 rejected。
+
+3. **删除时群主转让按 `joined_at` 最早，并列按编号**  
+   - 原条款：转给最早加入的其他成员。  
+   - 实际做法：`ORDER BY joined_at ASC, endpoint_id ASC LIMIT 1`。  
+   - 原因：同时加入时需稳定次序。  
+   - 备选方案：仅按 joined_at。  
+   - 影响：同毫秒加入时编号小者优先。
+
 ## 后台接口 A
 
 ### A1 2026-09-30

internal/admin/endpoints.go

@@ -320,18 +320,39 @@ func (h *Handler) handleEndpointPatch(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	wasEnabled, err := h.patchEndpoint(r.Context(), id, req.Name, req.Remark, req.DefaultDelaySeconds, req.Enabled)
-	if err != nil {
-		if errors.Is(err, sql.ErrNoRows) {
+	hasMeta := req.Name != nil || req.Remark != nil || req.DefaultDelaySeconds != nil
+	var wasEnabled bool
+	var err error
+	if hasMeta || (req.Enabled != nil && h.identity == nil) {
+		wasEnabled, err = h.patchEndpoint(r.Context(), id, req.Name, req.Remark, req.DefaultDelaySeconds, req.Enabled)
+		if err != nil {
+			if errors.Is(err, sql.ErrNoRows) {
+				h.audit(actorString(p), "endpoint_patch", id, "not_found", ip)
+				httpx.WriteError(w, http.StatusNotFound, "not_found", "端不存在")
+				return
+			}
+			h.audit(actorString(p), "endpoint_patch", id, "error", ip)
+			httpx.WriteError(w, http.StatusInternalServerError, "internal", "内部错误")
+			return
+		}
+	}
+	if req.Enabled != nil && h.identity != nil {
+		var found bool
+		found, err = h.setEndpointEnabled(r.Context(), id, *req.Enabled)
+		if err != nil {
+			h.audit(actorString(p), "endpoint_patch", id, "error", ip)
+			httpx.WriteError(w, http.StatusInternalServerError, "internal", "内部错误")
+			return
+		}
+		if !found {
 			h.audit(actorString(p), "endpoint_patch", id, "not_found", ip)
 			httpx.WriteError(w, http.StatusNotFound, "not_found", "端不存在")
 			return
 		}
-		h.audit(actorString(p), "endpoint_patch", id, "error", ip)
-		httpx.WriteError(w, http.StatusInternalServerError, "internal", "内部错误")
-		return
-	}
-	if req.Enabled != nil && !*req.Enabled && wasEnabled {
+		if !*req.Enabled {
+			_, _ = h.kickEndpoint(r.Context(), id)
+		}
+	} else if req.Enabled != nil && !*req.Enabled && wasEnabled {
 		_, _ = h.kickEndpoint(r.Context(), id)
 	}
 	row, err := h.getEndpoint(r.Context(), id)

internal/admin/endpoints_db.go

@@ -308,6 +308,21 @@ func (h *Handler) patchEndpoint(ctx context.Context, id string, name, remark *st
 }
 
 func (h *Handler) setEndpointEnabled(ctx context.Context, id string, enabled bool) (found bool, err error) {
+	if h.identity != nil {
+		var opErr error
+		if enabled {
+			opErr = h.identity.Enable(ctx, id)
+		} else {
+			opErr = h.identity.Disable(ctx, id)
+		}
+		if opErr != nil {
+			if isEndpointNotFound(opErr) {
+				return false, nil
+			}
+			return false, opErr
+		}
+		return true, nil
+	}
 	err = h.db.Queue.Do(ctx, func(tx *sql.Tx) error {
 		v := 0
 		if enabled {
@@ -331,9 +346,18 @@ func (h *Handler) setEndpointEnabled(ctx context.Context, id string, enabled boo
 	return found, err
 }
 
-// deleteEndpointBasic 删除端行并清掉与之相关的 talk_grants。
-// 作废消息、群主转让等完整级联留给 I5。
+// deleteEndpointBasic 删除端；注入 Identity 时走 I5 完整级联。
 func (h *Handler) deleteEndpointBasic(ctx context.Context, id string) (found bool, err error) {
+	if h.identity != nil {
+		opErr := h.identity.Delete(ctx, id)
+		if opErr != nil {
+			if isEndpointNotFound(opErr) {
+				return false, nil
+			}
+			return false, opErr
+		}
+		return true, nil
+	}
 	err = h.db.Queue.Do(ctx, func(tx *sql.Tx) error {
 		if _, e := tx.ExecContext(ctx, `DELETE FROM talk_grants WHERE sender_id = ? OR target_id = ?`, id, id); e != nil {
 			return e
@@ -349,6 +373,11 @@ func (h *Handler) deleteEndpointBasic(ctx context.Context, id string) (found boo
 	return found, err
 }
 
+func isEndpointNotFound(err error) bool {
+	var pe *protocol.Error
+	return errors.As(err, &pe) && pe.Code == protocol.CodeNotFound
+}
+
 func (h *Handler) resetLoginPassword(ctx context.Context, id, loginHash string) (bool, error) {
 	var found bool
 	err := h.db.Queue.Do(ctx, func(tx *sql.Tx) error {

internal/admin/handler.go

@@ -7,6 +7,7 @@ import (
 	"sync"
 	"time"
 
+	"git.asio.asia/nixevol/NixMsg/internal/app/identity"
 	"git.asio.asia/nixevol/NixMsg/internal/auth"
 	"git.asio.asia/nixevol/NixMsg/internal/store"
 )
@@ -38,6 +39,8 @@ type Deps struct {
 	SecureCookies bool
 	// KickEndpoint 踢下线钩子（只断开连接）；nil 时踢线为 no-op。
 	KickEndpoint EndpointKickFunc
+	// Identity 端停用/启用/删除级联（I5）；nil 时回退为仅改 enabled/删行。
+	Identity identity.Service
 }
 
 // Handler 是可挂载的管理接口（路由前缀 /api/admin/）。
@@ -51,6 +54,7 @@ type Handler struct {
 	ttl      time.Duration
 	forceSec bool
 	kick     EndpointKickFunc
+	identity identity.Service
 
 	mux *http.ServeMux
 
@@ -80,6 +84,7 @@ func New(d Deps) *Handler {
 		ttl:      ttl,
 		forceSec: d.SecureCookies,
 		kick:     d.KickEndpoint,
+		identity: d.Identity,
 		mux:      http.NewServeMux(),
 		lastUsed: make(map[string]time.Time),
 	}

internal/app/identity/app.go

@@ -32,8 +32,10 @@ type Config struct {
 	Sessions auth.SessionTokens
 	// MaxScheduleSeconds 限制 self.update 的 default_delay_ms。
 	MaxScheduleSeconds int64
-	// ConnControl 可选：logout 后踢线；未接线时为 nil。
+	// ConnControl 可选：logout / 停用 / 删除后踢线；未接线时为 nil。
 	ConnControl port.ConnControl
+	// Downlink 可选：停用/删除时发 revoked 与群事件；未接线时为 nil。
+	Downlink port.Downlink
 }
 
 // App 实现 identity.Service（含 I1 注册与 I2 self/对话密码）。
@@ -45,6 +47,7 @@ type App struct {
 	sessions           auth.SessionTokens
 	maxScheduleSeconds int64
 	connCtrl           port.ConnControl
+	down               port.Downlink
 	nowFn              func() time.Time
 }
 
@@ -81,6 +84,7 @@ func New(cfg Config) *App {
 		sessions:           cfg.Sessions,
 		maxScheduleSeconds: cfg.MaxScheduleSeconds,
 		connCtrl:           cfg.ConnControl,
+		down:               cfg.Downlink,
 		nowFn:              cfg.Now,
 	}
 }

internal/app/identity/lifecycle.go

@@ -0,0 +1,664 @@
+package identity
+
+import (
+	"bytes"
+	"context"
+	"database/sql"
+	"errors"
+
+	"git.asio.asia/nixevol/NixMsg/internal/app/port"
+	"git.asio.asia/nixevol/NixMsg/internal/protocol"
+)
+
+const (
+	reasonEndpointDisabled = "endpoint_disabled"
+	reasonEndpointDeleted  = "endpoint_deleted"
+	reasonSenderDisabled   = "sender_disabled"
+	reasonSenderDeleted    = "sender_deleted"
+	reasonLeftGroup        = "left_group"
+	reasonGroupDissolved   = "group_dissolved"
+
+	eventOwnerChanged  = "owner_changed"
+	eventLeft          = "left"
+	eventMemberRemoved = "member_removed"
+	eventDissolved     = "dissolved"
+)
+
+type revokeItem struct {
+	endpointID string
+	msgID      string
+	fromID     string
+	reason     string
+}
+
+type groupNotify struct {
+	recipients []string
+	groupID    string
+	event      string
+	endpointID string
+	atMs       int64
+}
+
+// Disable 停用端：清令牌、作废相关消息/投递，并踢连接（DEVELOPMENT 7.6）。
+func (a *App) Disable(ctx context.Context, endpointID string) error {
+	return a.disableOrDelete(ctx, endpointID, false)
+}
+
+// Enable 仅恢复 enabled=1；已作废消息不恢复。
+func (a *App) Enable(ctx context.Context, endpointID string) error {
+	err := a.db.Queue.Do(ctx, func(tx *sql.Tx) error {
+		res, e := tx.ExecContext(ctx, `UPDATE endpoints SET enabled = 1 WHERE id = ?`, endpointID)
+		if e != nil {
+			return e
+		}
+		n, _ := res.RowsAffected()
+		if n == 0 {
+			return errCode(protocol.CodeNotFound, "endpoint not found")
+		}
+		return nil
+	})
+	return err
+}
+
+// Delete 删除端：停用效果（原因改为 deleted）+ 退群/转让群主 + 清授权与发出记录。
+func (a *App) Delete(ctx context.Context, endpointID string) error {
+	return a.disableOrDelete(ctx, endpointID, true)
+}
+
+func (a *App) disableOrDelete(ctx context.Context, endpointID string, hardDelete bool) error {
+	nowMs := a.now().UnixMilli()
+	recvReason := reasonEndpointDisabled
+	sendReason := reasonSenderDisabled
+	if hardDelete {
+		recvReason = reasonEndpointDeleted
+		sendReason = reasonSenderDeleted
+	}
+
+	var revokes []revokeItem
+	var notifies []groupNotify
+	err := a.db.Queue.Do(ctx, func(tx *sql.Tx) error {
+		var one int
+		if e := tx.QueryRowContext(ctx, `SELECT 1 FROM endpoints WHERE id = ?`, endpointID).Scan(&one); e != nil {
+			if errors.Is(e, sql.ErrNoRows) {
+				return errCode(protocol.CodeNotFound, "endpoint not found")
+			}
+			return e
+		}
+
+		if _, e := tx.ExecContext(ctx, `
+UPDATE endpoints SET enabled = 0,
+  session_hash = NULL, session_issued_at = NULL, session_used_at = NULL
+WHERE id = ?`, endpointID); e != nil {
+			return e
+		}
+
+		if e := voidEndpointMessagesTx(tx, endpointID, recvReason, sendReason, nowMs, &revokes); e != nil {
+			return e
+		}
+
+		if !hardDelete {
+			return nil
+		}
+
+		if e := leaveAllGroupsTx(tx, endpointID, nowMs, &revokes, &notifies); e != nil {
+			return e
+		}
+		if _, e := tx.ExecContext(ctx, `DELETE FROM talk_grants WHERE sender_id = ? OR target_id = ?`, endpointID, endpointID); e != nil {
+			return e
+		}
+		if _, e := tx.ExecContext(ctx, `DELETE FROM receipts WHERE sender_id = ?`, endpointID); e != nil {
+			return e
+		}
+		if _, e := tx.ExecContext(ctx, `DELETE FROM send_keys WHERE sender_id = ?`, endpointID); e != nil {
+			return e
+		}
+		if _, e := tx.ExecContext(ctx, `DELETE FROM messages WHERE sender_id = ?`, endpointID); e != nil {
+			return e
+		}
+		_, e := tx.ExecContext(ctx, `DELETE FROM endpoints WHERE id = ?`, endpointID)
+		return e
+	})
+	if err != nil {
+		return err
+	}
+
+	a.publishRevokes(ctx, revokes)
+	a.publishGroupEvents(ctx, notifies)
+	if a.connCtrl != nil {
+		_ = a.connCtrl.Disconnect(ctx, endpointID, "", port.DisconnectFatal)
+	}
+	return nil
+}
+
+func voidEndpointMessagesTx(tx *sql.Tx, endpointID, recvReason, sendReason string, nowMs int64, revokes *[]revokeItem) error {
+	// 发给 X 的 pending → rejected
+	rows, err := tx.Query(`
+SELECT d.seq, d.pushed_at, m.id, m.sender_id, m.receipt
+FROM deliveries d
+JOIN messages m ON m.seq = d.seq
+WHERE d.endpoint_id = ? AND d.state = 'pending'`, endpointID)
+	if err != nil {
+		return err
+	}
+	type pendRow struct {
+		seq      int64
+		pushed   sql.NullInt64
+		msgID    string
+		senderID string
+		receipt  int
+	}
+	var pending []pendRow
+	for rows.Next() {
+		var r pendRow
+		if scanErr := rows.Scan(&r.seq, &r.pushed, &r.msgID, &r.senderID, &r.receipt); scanErr != nil {
+			_ = rows.Close()
+			return scanErr
+		}
+		pending = append(pending, r)
+	}
+	_ = rows.Close()
+	if err = rows.Err(); err != nil {
+		return err
+	}
+	finalSeqs := map[int64]struct{}{}
+	for _, r := range pending {
+		if _, execErr := tx.Exec(`
+UPDATE deliveries SET state = 'rejected', reason = ?, updated_at = ?
+WHERE seq = ? AND endpoint_id = ? AND state = 'pending'`,
+			recvReason, nowMs, r.seq, endpointID); execErr != nil {
+			return execErr
+		}
+		if r.receipt != 0 {
+			if e := insertReceiptIfWantedTx(tx, r.senderID, r.msgID, endpointID, "rejected", recvReason, nowMs, true); e != nil {
+				return e
+			}
+		}
+		if r.pushed.Valid && revokes != nil {
+			*revokes = append(*revokes, revokeItem{
+				endpointID: endpointID, msgID: r.msgID, fromID: r.senderID, reason: recvReason,
+			})
+		}
+		finalSeqs[r.seq] = struct{}{}
+	}
+
+	// 发给 X 的 scheduled 单聊 → completed，要回执则写
+	srows, err := tx.Query(`
+SELECT seq, id, sender_id, receipt FROM messages
+WHERE dest_kind = 'endpoint' AND dest_id = ? AND state = 'scheduled'`, endpointID)
+	if err != nil {
+		return err
+	}
+	type schedRow struct {
+		seq      int64
+		msgID    string
+		senderID string
+		receipt  int
+	}
+	var scheduledTo []schedRow
+	for srows.Next() {
+		var r schedRow
+		if scanErr := srows.Scan(&r.seq, &r.msgID, &r.senderID, &r.receipt); scanErr != nil {
+			_ = srows.Close()
+			return scanErr
+		}
+		scheduledTo = append(scheduledTo, r)
+	}
+	_ = srows.Close()
+	if err = srows.Err(); err != nil {
+		return err
+	}
+	for _, r := range scheduledTo {
+		if _, execErr := tx.Exec(`
+UPDATE messages SET state = 'completed', reason = ? WHERE seq = ? AND state = 'scheduled'`,
+			recvReason, r.seq); execErr != nil {
+			return execErr
+		}
+		if _, execErr := tx.Exec(`DELETE FROM message_bodies WHERE seq = ?`, r.seq); execErr != nil {
+			return execErr
+		}
+		if r.receipt != 0 {
+			// 消息级作废：endpoint_id 空，state=rejected（DEVELOPMENT 6.4）
+			if e := insertReceiptIfWantedTx(tx, r.senderID, r.msgID, "", "rejected", recvReason, nowMs, true); e != nil {
+				return e
+			}
+		}
+	}
+
+	// X 发出的 scheduled → completed（sender_*），不写回执
+	outSched, err := tx.Query(`SELECT seq FROM messages WHERE sender_id = ? AND state = 'scheduled'`, endpointID)
+	if err != nil {
+		return err
+	}
+	var outSeqs []int64
+	for outSched.Next() {
+		var seq int64
+		if scanErr := outSched.Scan(&seq); scanErr != nil {
+			_ = outSched.Close()
+			return scanErr
+		}
+		outSeqs = append(outSeqs, seq)
+	}
+	_ = outSched.Close()
+	if err = outSched.Err(); err != nil {
+		return err
+	}
+	for _, seq := range outSeqs {
+		if _, execErr := tx.Exec(`
+UPDATE messages SET state = 'completed', reason = ? WHERE seq = ? AND state = 'scheduled'`,
+			sendReason, seq); execErr != nil {
+			return execErr
+		}
+		if _, execErr := tx.Exec(`DELETE FROM message_bodies WHERE seq = ?`, seq); execErr != nil {
+			return execErr
+		}
+	}
+
+	// X 发出的消息的 pending 投递 → rejected（sender_*），不写回执
+	drows, err := tx.Query(`
+SELECT d.seq, d.endpoint_id, d.pushed_at, m.id, m.sender_id
+FROM deliveries d
+JOIN messages m ON m.seq = d.seq
+WHERE m.sender_id = ? AND d.state = 'pending'`, endpointID)
+	if err != nil {
+		return err
+	}
+	type outPend struct {
+		seq        int64
+		endpointID string
+		pushed     sql.NullInt64
+		msgID      string
+		senderID   string
+	}
+	var outPending []outPend
+	for drows.Next() {
+		var r outPend
+		if scanErr := drows.Scan(&r.seq, &r.endpointID, &r.pushed, &r.msgID, &r.senderID); scanErr != nil {
+			_ = drows.Close()
+			return scanErr
+		}
+		outPending = append(outPending, r)
+	}
+	_ = drows.Close()
+	if err = drows.Err(); err != nil {
+		return err
+	}
+	for _, r := range outPending {
+		if _, execErr := tx.Exec(`
+UPDATE deliveries SET state = 'rejected', reason = ?, updated_at = ?
+WHERE seq = ? AND endpoint_id = ? AND state = 'pending'`,
+			sendReason, nowMs, r.seq, r.endpointID); execErr != nil {
+			return execErr
+		}
+		if r.pushed.Valid && revokes != nil {
+			*revokes = append(*revokes, revokeItem{
+				endpointID: r.endpointID, msgID: r.msgID, fromID: r.senderID, reason: sendReason,
+			})
+		}
+		finalSeqs[r.seq] = struct{}{}
+	}
+
+	for seq := range finalSeqs {
+		if e := tryFinalizeTx(tx, seq); e != nil {
+			return e
+		}
+	}
+	return nil
+}
+
+func leaveAllGroupsTx(tx *sql.Tx, endpointID string, nowMs int64, revokes *[]revokeItem, notifies *[]groupNotify) error {
+	grows, err := tx.Query(`
+SELECT g.id, g.owner_id
+FROM groups g
+JOIN group_members gm ON gm.group_id = g.id
+WHERE gm.endpoint_id = ?`, endpointID)
+	if err != nil {
+		return err
+	}
+	type grow struct {
+		id    string
+		owner string
+	}
+	var groups []grow
+	for grows.Next() {
+		var g grow
+		if scanErr := grows.Scan(&g.id, &g.owner); scanErr != nil {
+			_ = grows.Close()
+			return scanErr
+		}
+		groups = append(groups, g)
+	}
+	_ = grows.Close()
+	if err = grows.Err(); err != nil {
+		return err
+	}
+
+	for _, g := range groups {
+		members, memErr := loadMembersTx(tx, g.id)
+		if memErr != nil {
+			return memErr
+		}
+		if g.owner == endpointID {
+			others := withoutMember(members, endpointID)
+			if len(others) == 0 {
+				if e := voidGroupAllTx(tx, g.id, nowMs, revokes); e != nil {
+					return e
+				}
+				if _, e := tx.Exec(`DELETE FROM group_members WHERE group_id = ?`, g.id); e != nil {
+					return e
+				}
+				if _, e := tx.Exec(`DELETE FROM groups WHERE id = ?`, g.id); e != nil {
+					return e
+				}
+				if notifies != nil {
+					*notifies = append(*notifies, groupNotify{
+						recipients: members, groupID: g.id, event: eventDissolved, atMs: nowMs,
+					})
+				}
+				continue
+			}
+			newOwner, ownErr := earliestOtherMemberTx(tx, g.id, endpointID)
+			if ownErr != nil {
+				return ownErr
+			}
+			if _, e := tx.Exec(`UPDATE groups SET owner_id = ? WHERE id = ?`, newOwner, g.id); e != nil {
+				return e
+			}
+			if _, e := tx.Exec(`DELETE FROM group_members WHERE group_id = ? AND endpoint_id = ?`, g.id, endpointID); e != nil {
+				return e
+			}
+			if e := voidMemberDeliveriesTx(tx, g.id, endpointID, reasonLeftGroup, nowMs, revokes); e != nil {
+				return e
+			}
+			left := withoutMember(members, endpointID)
+			if notifies != nil {
+				*notifies = append(*notifies,
+					groupNotify{recipients: left, groupID: g.id, event: eventOwnerChanged, endpointID: newOwner, atMs: nowMs},
+					groupNotify{recipients: append(append([]string{}, left...), endpointID), groupID: g.id, event: eventMemberRemoved, endpointID: endpointID, atMs: nowMs},
+				)
+			}
+			continue
+		}
+
+		if _, e := tx.Exec(`DELETE FROM group_members WHERE group_id = ? AND endpoint_id = ?`, g.id, endpointID); e != nil {
+			return e
+		}
+		if e := voidMemberDeliveriesTx(tx, g.id, endpointID, reasonLeftGroup, nowMs, revokes); e != nil {
+			return e
+		}
+		left := withoutMember(members, endpointID)
+		if notifies != nil {
+			*notifies = append(*notifies, groupNotify{
+				recipients: append(append([]string{}, left...), endpointID),
+				groupID:    g.id, event: eventLeft, endpointID: endpointID, atMs: nowMs,
+			})
+		}
+	}
+	return nil
+}
+
+func loadMembersTx(tx *sql.Tx, groupID string) ([]string, error) {
+	rows, err := tx.Query(`SELECT endpoint_id FROM group_members WHERE group_id = ? ORDER BY joined_at ASC, endpoint_id ASC`, groupID)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+	var out []string
+	for rows.Next() {
+		var id string
+		if e := rows.Scan(&id); e != nil {
+			return nil, e
+		}
+		out = append(out, id)
+	}
+	return out, rows.Err()
+}
+
+func earliestOtherMemberTx(tx *sql.Tx, groupID, exceptID string) (string, error) {
+	var id string
+	err := tx.QueryRow(`
+SELECT endpoint_id FROM group_members
+WHERE group_id = ? AND endpoint_id != ?
+ORDER BY joined_at ASC, endpoint_id ASC
+LIMIT 1`, groupID, exceptID).Scan(&id)
+	return id, err
+}
+
+func withoutMember(ids []string, drop string) []string {
+	out := make([]string, 0, len(ids))
+	for _, id := range ids {
+		if id != drop {
+			out = append(out, id)
+		}
+	}
+	return out
+}
+
+// voidMemberDeliveriesTx 与 group 包同语义：退群成员的 pending 群投递改 rejected。
+func voidMemberDeliveriesTx(tx *sql.Tx, groupID, endpointID, reason string, nowMs int64, revokes *[]revokeItem) error {
+	rows, err := tx.Query(`
+SELECT d.seq, d.pushed_at, m.id, m.sender_id
+FROM deliveries d
+JOIN messages m ON m.seq = d.seq
+WHERE d.endpoint_id = ? AND d.state = 'pending'
+  AND m.dest_kind = 'group' AND m.dest_id = ?`, endpointID, groupID)
+	if err != nil {
+		return err
+	}
+	type row struct {
+		seq      int64
+		pushed   sql.NullInt64
+		msgID    string
+		senderID string
+	}
+	var list []row
+	for rows.Next() {
+		var r row
+		if scanErr := rows.Scan(&r.seq, &r.pushed, &r.msgID, &r.senderID); scanErr != nil {
+			_ = rows.Close()
+			return scanErr
+		}
+		list = append(list, r)
+	}
+	_ = rows.Close()
+	if err = rows.Err(); err != nil {
+		return err
+	}
+	for _, r := range list {
+		if _, execErr := tx.Exec(`
+UPDATE deliveries SET state = 'rejected', reason = ?, updated_at = ?
+WHERE seq = ? AND endpoint_id = ? AND state = 'pending'`,
+			reason, nowMs, r.seq, endpointID); execErr != nil {
+			return execErr
+		}
+		if r.pushed.Valid && revokes != nil {
+			*revokes = append(*revokes, revokeItem{
+				endpointID: endpointID, msgID: r.msgID, fromID: r.senderID, reason: reason,
+			})
+		}
+		if e := tryFinalizeTx(tx, r.seq); e != nil {
+			return e
+		}
+	}
+	return nil
+}
+
+func voidGroupAllTx(tx *sql.Tx, groupID string, nowMs int64, revokes *[]revokeItem) error {
+	rows, err := tx.Query(`
+SELECT d.seq, d.endpoint_id, d.pushed_at, m.id, m.sender_id
+FROM deliveries d
+JOIN messages m ON m.seq = d.seq
+WHERE d.state = 'pending' AND m.dest_kind = 'group' AND m.dest_id = ?`, groupID)
+	if err != nil {
+		return err
+	}
+	type drow struct {
+		seq        int64
+		endpointID string
+		pushed     sql.NullInt64
+		msgID      string
+		senderID   string
+	}
+	var dlist []drow
+	for rows.Next() {
+		var r drow
+		if scanErr := rows.Scan(&r.seq, &r.endpointID, &r.pushed, &r.msgID, &r.senderID); scanErr != nil {
+			_ = rows.Close()
+			return scanErr
+		}
+		dlist = append(dlist, r)
+	}
+	_ = rows.Close()
+	if err = rows.Err(); err != nil {
+		return err
+	}
+	for _, r := range dlist {
+		if _, execErr := tx.Exec(`
+UPDATE deliveries SET state = 'rejected', reason = ?, updated_at = ?
+WHERE seq = ? AND endpoint_id = ? AND state = 'pending'`,
+			reasonGroupDissolved, nowMs, r.seq, r.endpointID); execErr != nil {
+			return execErr
+		}
+		if r.pushed.Valid && revokes != nil {
+			*revokes = append(*revokes, revokeItem{
+				endpointID: r.endpointID, msgID: r.msgID, fromID: r.senderID, reason: reasonGroupDissolved,
+			})
+		}
+		if e := tryFinalizeTx(tx, r.seq); e != nil {
+			return e
+		}
+	}
+
+	srows, err := tx.Query(`
+SELECT seq, id, sender_id, receipt FROM messages
+WHERE dest_kind = 'group' AND dest_id = ? AND state = 'scheduled'`, groupID)
+	if err != nil {
+		return err
+	}
+	type srow struct {
+		seq      int64
+		msgID    string
+		senderID string
+		receipt  int
+	}
+	var slist []srow
+	for srows.Next() {
+		var r srow
+		if scanErr := srows.Scan(&r.seq, &r.msgID, &r.senderID, &r.receipt); scanErr != nil {
+			_ = srows.Close()
+			return scanErr
+		}
+		slist = append(slist, r)
+	}
+	_ = srows.Close()
+	if err = srows.Err(); err != nil {
+		return err
+	}
+	for _, r := range slist {
+		if _, execErr := tx.Exec(`
+UPDATE messages SET state = 'completed', reason = ? WHERE seq = ? AND state = 'scheduled'`,
+			reasonGroupDissolved, r.seq); execErr != nil {
+			return execErr
+		}
+		if _, execErr := tx.Exec(`DELETE FROM message_bodies WHERE seq = ?`, r.seq); execErr != nil {
+			return execErr
+		}
+		if r.receipt != 0 {
+			if e := insertReceiptIfWantedTx(tx, r.senderID, r.msgID, "", "rejected", reasonGroupDissolved, nowMs, true); e != nil {
+				return e
+			}
+		}
+	}
+	return nil
+}
+
+func insertReceiptIfWantedTx(tx *sql.Tx, senderID, msgID, endpointID, state, reason string, nowMs int64, alreadyWanted bool) error {
+	if !alreadyWanted {
+		return nil
+	}
+	var one int
+	err := tx.QueryRow(`SELECT 1 FROM endpoints WHERE id = ?`, senderID).Scan(&one)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil
+	}
+	if err != nil {
+		return err
+	}
+	_, err = tx.Exec(`
+INSERT INTO receipts(sender_id, msg_id, endpoint_id, state, reason, created_at, acked)
+VALUES(?,?,?,?,?,?,0)`, senderID, msgID, endpointID, state, reason, nowMs)
+	return err
+}
+
+func tryFinalizeTx(tx *sql.Tx, seq int64) error {
+	var n int
+	if err := tx.QueryRow(`SELECT COUNT(*) FROM deliveries WHERE seq = ? AND state = 'pending'`, seq).Scan(&n); err != nil {
+		return err
+	}
+	if n > 0 {
+		return nil
+	}
+	var state string
+	if err := tx.QueryRow(`SELECT state FROM messages WHERE seq = ?`, seq).Scan(&state); err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil
+		}
+		return err
+	}
+	if state == "completed" {
+		return nil
+	}
+	if _, err := tx.Exec(`UPDATE messages SET state = 'completed' WHERE seq = ?`, seq); err != nil {
+		return err
+	}
+	_, err := tx.Exec(`DELETE FROM message_bodies WHERE seq = ?`, seq)
+	return err
+}
+
+func (a *App) publishRevokes(ctx context.Context, items []revokeItem) {
+	if a.down == nil || len(items) == 0 {
+		return
+	}
+	for _, it := range items {
+		frame := protocol.Revoked{
+			V: protocol.Version, Type: protocol.TypeRevoked,
+			ID: it.msgID, From: it.fromID, Reason: it.reason,
+		}
+		payload, encErr := encodeFrame(frame)
+		if encErr != nil {
+			continue
+		}
+		_ = a.down.PublishDown(ctx, it.endpointID, "", payload, port.PublishOpts{QoS: 1})
+	}
+}
+
+func (a *App) publishGroupEvents(ctx context.Context, items []groupNotify) {
+	if a.down == nil || len(items) == 0 {
+		return
+	}
+	for _, it := range items {
+		frame := protocol.GroupEvent{
+			V: protocol.Version, Type: protocol.TypeGroupEvent,
+			GroupID: it.groupID, Event: it.event, EndpointID: it.endpointID, AtMs: it.atMs,
+		}
+		payload, encErr := encodeFrame(frame)
+		if encErr != nil {
+			continue
+		}
+		seen := map[string]struct{}{}
+		for _, id := range it.recipients {
+			if _, ok := seen[id]; ok {
+				continue
+			}
+			seen[id] = struct{}{}
+			_ = a.down.PublishDown(ctx, id, "", payload, port.PublishOpts{QoS: 0})
+		}
+	}
+}
+
+func encodeFrame(v any) ([]byte, error) {
+	var buf bytes.Buffer
+	if err := protocol.Encode(&buf, v); err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}

internal/app/identity/lifecycle_test.go

@@ -0,0 +1,386 @@
+package identity_test
+
+import (
+	"context"
+	"database/sql"
+	"io"
+	"net/http"
+	"net/http/cookiejar"
+	"net/http/httptest"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"git.asio.asia/nixevol/NixMsg/internal/admin"
+	"git.asio.asia/nixevol/NixMsg/internal/app/identity"
+	"git.asio.asia/nixevol/NixMsg/internal/app/message"
+	"git.asio.asia/nixevol/NixMsg/internal/app/port"
+	"git.asio.asia/nixevol/NixMsg/internal/auth"
+	"git.asio.asia/nixevol/NixMsg/internal/config"
+	"git.asio.asia/nixevol/NixMsg/internal/protocol"
+	"git.asio.asia/nixevol/NixMsg/internal/store"
+)
+
+func openLifecycle(t *testing.T) (*identity.App, *message.App, *store.DB) {
+	t.Helper()
+	dir := t.TempDir()
+	db, err := store.Open(filepath.Join(dir, "data"), "FULL")
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = db.Close() })
+	fixed := time.UnixMilli(1_700_000_000_000)
+	idApp := identity.New(identity.Config{
+		DB:                 db,
+		Hash:               auth.NewStubHashPool(),
+		Locks:              auth.NewStubLoginLocks(),
+		Sessions:           auth.NewSessionTokens(),
+		MaxScheduleSeconds: int64(config.Default().Limits.MaxScheduleSeconds),
+		Now:                func() time.Time { return fixed },
+		ConnControl:        &port.StubConnControl{},
+		Downlink:           &port.StubDownlink{},
+	})
+	lim := message.LimitsFromConfig(config.Default().Limits)
+	lim.RequestsPerSecond = 0
+	lim.RecordRetentionDays = 7
+	msgApp := message.New(db, lim, auth.NewStubHashPool(),
+		message.WithNow(func() time.Time { return fixed }),
+		message.WithLocks(auth.NewStubLoginLocks()),
+	)
+	return idApp, msgApp, db
+}
+
+func insertEPFull(t *testing.T, db *store.DB, id string) {
+	t.Helper()
+	err := db.Queue.Do(context.Background(), func(tx *sql.Tx) error {
+		_, e := tx.Exec(`
+INSERT INTO endpoints(id, name, login_hash, talk_hash, talk_version, default_delay_ms, enabled, created_at, offline_since)
+VALUES(?,?,?,?,0,0,1,?,?)`, id, id, "stub$login", nil, 1_700_000_000_000, 1_700_000_000_000)
+		return e
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestF01DisableVoidsScheduledAndRejectsNew(t *testing.T) {
+	t.Parallel()
+	idApp, msgApp, db := openLifecycle(t)
+	ctx := context.Background()
+	insertEPFull(t, db, "alice")
+	insertEPFull(t, db, "bob")
+
+	future := int64(1_700_000_000_000 + 3600_000)
+	receipt := true
+	toBob := &protocol.Send{
+		V: protocol.Version, Type: protocol.TypeSend, RID: "1", ID: "m-to-bob",
+		To:       protocol.Target{Kind: protocol.TargetEndpoint, ID: "bob"},
+		Body:     protocol.Body{Enc: protocol.EncUTF8, Data: "hi"},
+		SendAtMs: &future,
+		Receipt:  &receipt,
+	}
+	if _, err := msgApp.Submit(ctx, "alice", port.ConnInfo{EndpointID: "alice"}, toBob); err != nil {
+		t.Fatal(err)
+	}
+	fromBob := &protocol.Send{
+		V: protocol.Version, Type: protocol.TypeSend, RID: "2", ID: "m-from-bob",
+		To:       protocol.Target{Kind: protocol.TargetEndpoint, ID: "alice"},
+		Body:     protocol.Body{Enc: protocol.EncUTF8, Data: "bye"},
+		SendAtMs: &future,
+	}
+	if _, err := msgApp.Submit(ctx, "bob", port.ConnInfo{EndpointID: "bob"}, fromBob); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := idApp.Disable(ctx, "bob"); err != nil {
+		t.Fatal(err)
+	}
+
+	var enabled int
+	if err := db.Read.QueryRow(`SELECT enabled FROM endpoints WHERE id='bob'`).Scan(&enabled); err != nil {
+		t.Fatal(err)
+	}
+	if enabled != 0 {
+		t.Fatalf("enabled=%d", enabled)
+	}
+
+	var toState, toReason string
+	if err := db.Read.QueryRow(`SELECT state, reason FROM messages WHERE sender_id='alice' AND id='m-to-bob'`).
+		Scan(&toState, &toReason); err != nil {
+		t.Fatal(err)
+	}
+	if toState != "completed" || toReason != "endpoint_disabled" {
+		t.Fatalf("to bob: state=%s reason=%s", toState, toReason)
+	}
+	var fromState, fromReason string
+	if err := db.Read.QueryRow(`SELECT state, reason FROM messages WHERE sender_id='bob' AND id='m-from-bob'`).
+		Scan(&fromState, &fromReason); err != nil {
+		t.Fatal(err)
+	}
+	if fromState != "completed" || fromReason != "sender_disabled" {
+		t.Fatalf("from bob: state=%s reason=%s", fromState, fromReason)
+	}
+
+	newSend := &protocol.Send{
+		V: protocol.Version, Type: protocol.TypeSend, RID: "3", ID: "m-new",
+		To:   protocol.Target{Kind: protocol.TargetEndpoint, ID: "bob"},
+		Body: protocol.Body{Enc: protocol.EncUTF8, Data: "x"},
+	}
+	_, err := msgApp.Submit(ctx, "alice", port.ConnInfo{EndpointID: "alice"}, newSend)
+	if protoCode(err) != protocol.CodeEndpointDisabled {
+		t.Fatalf("want endpoint_disabled got %v", err)
+	}
+
+	if err := idApp.Enable(ctx, "bob"); err != nil {
+		t.Fatal(err)
+	}
+	if err := db.Read.QueryRow(`SELECT state FROM messages WHERE id='m-to-bob'`).Scan(&toState); err != nil {
+		t.Fatal(err)
+	}
+	if toState != "completed" {
+		t.Fatalf("voided message restored? %s", toState)
+	}
+	okSend := &protocol.Send{
+		V: protocol.Version, Type: protocol.TypeSend, RID: "4", ID: "m-after",
+		To:   protocol.Target{Kind: protocol.TargetEndpoint, ID: "bob"},
+		Body: protocol.Body{Enc: protocol.EncUTF8, Data: "ok"},
+	}
+	if _, err := msgApp.Submit(ctx, "alice", port.ConnInfo{EndpointID: "alice"}, okSend); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestF01DeleteOwnerTransfersEarliest(t *testing.T) {
+	t.Parallel()
+	idApp, _, db := openLifecycle(t)
+	ctx := context.Background()
+	insertEPFull(t, db, "owner")
+	insertEPFull(t, db, "early")
+	insertEPFull(t, db, "late")
+
+	err := db.Queue.Do(ctx, func(tx *sql.Tx) error {
+		if _, e := tx.Exec(`INSERT INTO groups(id, name, owner_id, created_at) VALUES('g1','群','owner',?)`, 1_700_000_000_000); e != nil {
+			return e
+		}
+		_, e := tx.Exec(`INSERT INTO group_members(group_id, endpoint_id, joined_at) VALUES
+('g1','owner',100),('g1','early',200),('g1','late',300)`)
+		return e
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := idApp.Delete(ctx, "owner"); err != nil {
+		t.Fatal(err)
+	}
+
+	var owner string
+	if err := db.Read.QueryRow(`SELECT owner_id FROM groups WHERE id='g1'`).Scan(&owner); err != nil {
+		t.Fatal(err)
+	}
+	if owner != "early" {
+		t.Fatalf("want earliest other member early, got %s", owner)
+	}
+	var n int
+	if err := db.Read.QueryRow(`SELECT COUNT(*) FROM group_members WHERE group_id='g1' AND endpoint_id='owner'`).Scan(&n); err != nil {
+		t.Fatal(err)
+	}
+	if n != 0 {
+		t.Fatal("owner should have left the group")
+	}
+}
+
+func TestF01DeleteReopenNoOldReceipts(t *testing.T) {
+	t.Parallel()
+	idApp, msgApp, db := openLifecycle(t)
+	ctx := context.Background()
+	insertEPFull(t, db, "alice")
+	insertEPFull(t, db, "bob")
+
+	receipt := true
+	send := &protocol.Send{
+		V: protocol.Version, Type: protocol.TypeSend, RID: "1", ID: "m1",
+		To:      protocol.Target{Kind: protocol.TargetEndpoint, ID: "alice"},
+		Body:    protocol.Body{Enc: protocol.EncUTF8, Data: "hi"},
+		Receipt: &receipt,
+	}
+	if _, err := msgApp.Submit(ctx, "bob", port.ConnInfo{EndpointID: "bob"}, send); err != nil {
+		t.Fatal(err)
+	}
+	err := db.Queue.Do(ctx, func(tx *sql.Tx) error {
+		_, e := tx.Exec(`
+INSERT INTO receipts(sender_id, msg_id, endpoint_id, state, reason, created_at, acked)
+VALUES('bob','m1','alice','accepted','',?,0)`, 1_700_000_000_000)
+		return e
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := idApp.Delete(ctx, "bob"); err != nil {
+		t.Fatal(err)
+	}
+
+	var n int
+	if err := db.Read.QueryRow(`SELECT COUNT(*) FROM receipts WHERE sender_id='bob'`).Scan(&n); err != nil {
+		t.Fatal(err)
+	}
+	if n != 0 {
+		t.Fatalf("old receipts should be gone, got %d", n)
+	}
+
+	insertEPFull(t, db, "bob")
+	if err := db.Read.QueryRow(`SELECT COUNT(*) FROM receipts WHERE sender_id='bob'`).Scan(&n); err != nil {
+		t.Fatal(err)
+	}
+	if n != 0 {
+		t.Fatalf("reopened endpoint must not inherit receipts, got %d", n)
+	}
+	if err := db.Read.QueryRow(`SELECT COUNT(*) FROM messages WHERE sender_id='bob'`).Scan(&n); err != nil {
+		t.Fatal(err)
+	}
+	if n != 0 {
+		t.Fatalf("reopened endpoint must not inherit messages, got %d", n)
+	}
+}
+
+func TestAdminDisableDeleteHTTP(t *testing.T) {
+	t.Parallel()
+	dir := t.TempDir()
+	db, err := store.Open(filepath.Join(dir, "data"), "FULL")
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = db.Close() })
+
+	fixed := time.UnixMilli(1_700_000_000_000)
+	hash := auth.NewStubHashPool()
+	if seedErr := admin.SeedAdminPassword(context.Background(), db, hash, "adminpassword1"); seedErr != nil {
+		t.Fatal(seedErr)
+	}
+	idApp := identity.New(identity.Config{
+		DB: db, Hash: hash, Locks: auth.NewStubLoginLocks(), Sessions: auth.NewSessionTokens(),
+		MaxScheduleSeconds: 86400, Now: func() time.Time { return fixed },
+	})
+	lim := message.LimitsFromConfig(config.Default().Limits)
+	lim.RequestsPerSecond = 0
+	msgApp := message.New(db, lim, hash,
+		message.WithNow(func() time.Time { return fixed }),
+		message.WithLocks(auth.NewStubLoginLocks()),
+	)
+
+	kick := &lifecycleKick{}
+	h := admin.New(admin.Deps{
+		DB: db, Hash: hash, Tokens: admin.NewRandomAPITokens(),
+		Locks: admin.NewMemoryLoginLocks(), KickEndpoint: kick.Kick, Identity: idApp,
+	})
+	srv := httptest.NewServer(h)
+	t.Cleanup(srv.Close)
+
+	jar, _ := cookiejar.New(nil)
+	client := &http.Client{Jar: jar}
+	loginRes, err := client.Post(srv.URL+"/api/admin/login", "application/json",
+		strings.NewReader(`{"username":"admin","password":"adminpassword1"}`))
+	if err != nil {
+		t.Fatal(err)
+	}
+	_ = loginRes.Body.Close()
+	if loginRes.StatusCode != 200 {
+		t.Fatalf("login %d", loginRes.StatusCode)
+	}
+
+	createEP := func(id string) {
+		t.Helper()
+		req, _ := http.NewRequest(http.MethodPost, srv.URL+"/api/admin/endpoints",
+			strings.NewReader(`{"id":"`+id+`","name":"`+id+`","login_password":"password12"}`))
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("X-Nixmsg-Request", "1")
+		res, e := client.Do(req)
+		if e != nil {
+			t.Fatal(e)
+		}
+		raw, _ := io.ReadAll(res.Body)
+		_ = res.Body.Close()
+		if res.StatusCode != 200 {
+			t.Fatalf("create %s: %d %s", id, res.StatusCode, raw)
+		}
+	}
+	createEP("alice")
+	createEP("bob")
+	createEP("carol")
+
+	ctx := context.Background()
+	future := fixed.UnixMilli() + 3600_000
+	toBob := &protocol.Send{
+		V: protocol.Version, Type: protocol.TypeSend, RID: "1", ID: "sched-bob",
+		To:       protocol.Target{Kind: protocol.TargetEndpoint, ID: "bob"},
+		Body:     protocol.Body{Enc: protocol.EncUTF8, Data: "x"},
+		SendAtMs: &future,
+	}
+	if _, subErr := msgApp.Submit(ctx, "alice", port.ConnInfo{EndpointID: "alice"}, toBob); subErr != nil {
+		t.Fatal(subErr)
+	}
+
+	req, _ := http.NewRequest(http.MethodPost, srv.URL+"/api/admin/endpoints/batch",
+		strings.NewReader(`{"ids":["bob"],"action":"disable"}`))
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("X-Nixmsg-Request", "1")
+	res, err := client.Do(req)
+	if err != nil {
+		t.Fatal(err)
+	}
+	body, _ := io.ReadAll(res.Body)
+	_ = res.Body.Close()
+	if res.StatusCode != 200 {
+		t.Fatalf("disable: %d %s", res.StatusCode, body)
+	}
+	var st string
+	if scanErr := db.Read.QueryRow(`SELECT state FROM messages WHERE id='sched-bob'`).Scan(&st); scanErr != nil {
+		t.Fatal(scanErr)
+	}
+	if st != "completed" {
+		t.Fatalf("scheduled should be voided, got %s", st)
+	}
+
+	err = db.Queue.Do(ctx, func(tx *sql.Tx) error {
+		if _, e := tx.Exec(`INSERT INTO groups(id, name, owner_id, created_at) VALUES('ghttp','G','bob',?)`, fixed.UnixMilli()); e != nil {
+			return e
+		}
+		_, e := tx.Exec(`INSERT INTO group_members(group_id, endpoint_id, joined_at) VALUES
+('ghttp','bob',1),('ghttp','alice',2),('ghttp','carol',3)`)
+		return e
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// bob 已停用，需先启用才能作为「仍存在的群主」再删除？删除不要求 enabled。
+	req, _ = http.NewRequest(http.MethodDelete, srv.URL+"/api/admin/endpoints/bob", nil)
+	req.Header.Set("X-Nixmsg-Request", "1")
+	res, err = client.Do(req)
+	if err != nil {
+		t.Fatal(err)
+	}
+	raw, _ := io.ReadAll(res.Body)
+	_ = res.Body.Close()
+	if res.StatusCode != 200 {
+		t.Fatalf("delete: %d %s", res.StatusCode, raw)
+	}
+	var owner string
+	if err := db.Read.QueryRow(`SELECT owner_id FROM groups WHERE id='ghttp'`).Scan(&owner); err != nil {
+		t.Fatal(err)
+	}
+	if owner != "alice" {
+		t.Fatalf("want alice as new owner, got %s", owner)
+	}
+}
+
+type lifecycleKick struct {
+	Calls []string
+}
+
+func (k *lifecycleKick) Kick(_ context.Context, endpointID string) (bool, error) {
+	k.Calls = append(k.Calls, endpointID)
+	return true, nil
+}

internal/app/identity/self.go

@@ -215,8 +215,3 @@ WHERE id = ?`, endpointID)
 	}
 	return nil
 }
-
-// Disable / Enable / Delete 属 I5，此处保留未实现。
-func (a *App) Disable(context.Context, string) error { return ErrNotImplemented }
-func (a *App) Enable(context.Context, string) error  { return ErrNotImplemented }
-func (a *App) Delete(context.Context, string) error  { return ErrNotImplemented }

internal/app/message/conn.go

@@ -67,6 +67,17 @@ func (c *MemoryConns) Current(endpointID string) (LiveConn, bool) {
 	return v, ok
 }
 
+// Snapshot 返回当前连接表副本（供推送循环遍历）。
+func (c *MemoryConns) Snapshot() map[string]LiveConn {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+	out := make(map[string]LiveConn, len(c.m))
+	for k, v := range c.m {
+		out[k] = v
+	}
+	return out
+}
+
 // RecordingDownlink 记录下行发布，供测试断言。
 type RecordingDownlink struct {
 	mu        sync.Mutex

internal/app/presence/encode.go

@@ -0,0 +1,22 @@
+package presence
+
+// EncodeGetData 把 Get 结果编成 presence.get 的 resp data（items 数组）。
+// 未知编号项为 {"id":"...","not_found":true}，其余含 id/online/since_ms。
+func EncodeGetData(items []StatusItem) map[string]any {
+	out := make([]map[string]any, 0, len(items))
+	for _, it := range items {
+		if it.NotFound {
+			out = append(out, map[string]any{
+				"id":        it.ID,
+				"not_found": true,
+			})
+			continue
+		}
+		out = append(out, map[string]any{
+			"id":       it.ID,
+			"online":   it.Online,
+			"since_ms": it.SinceMs,
+		})
+	}
+	return map[string]any{"items": out}
+}

internal/broker/broker.go

@@ -58,11 +58,16 @@ func (AllowAuthenticator) Authenticate(context.Context, string, []byte, string)
 	return AuthResult{OK: true}, nil
 }
 
+// PublishDroppedFunc 下行未写入发送队列时回调（对接消息线 OnPublishDropped）。
+type PublishDroppedFunc func(ctx context.Context, endpointID string, connID port.ConnID, payload []byte)
+
 // Options 装配 broker。
 type Options struct {
 	Authenticator Authenticator
 	Uplink        port.UplinkHandler
 	Logger        *slog.Logger
+	// OnPublishDropped 可选；nil 时仅打 debug 日志。
+	OnPublishDropped PublishDroppedFunc
 }
 
 // Broker 内置 mochi，不自带监听端口。
@@ -71,6 +76,7 @@ type Broker struct {
 	auth   Authenticator
 	uplink port.UplinkHandler
 	log    *slog.Logger
+	onDrop PublishDroppedFunc
 
 	hook *nixHook
 
@@ -144,6 +150,7 @@ func New(opts Options) (*Broker, error) {
 		auth:     auth,
 		uplink:   uplink,
 		log:      log,
+		onDrop:   opts.OnPublishDropped,
 		current:  make(map[string]*connState),
 		byClient: make(map[*mqtt.Client]*connState),
 		queues:   make(map[string]*uplinkQueue),

internal/broker/hooks.go

@@ -159,6 +159,16 @@ func (h *nixHook) OnSubscribed(cl *mqtt.Client, pk packets.Packet, reasonCodes [
 
 func (h *nixHook) OnPublishDropped(cl *mqtt.Client, pk packets.Packet) {
 	h.b.log.Debug("publish dropped", "client", cl.ID, "topic", pk.TopicName, "size", len(pk.Payload))
+	if h.b.onDrop == nil {
+		return
+	}
+	h.b.connsMu.RLock()
+	st := h.b.byClient[cl]
+	h.b.connsMu.RUnlock()
+	if st == nil {
+		return
+	}
+	h.b.onDrop(context.Background(), st.endpointID, st.connID, append([]byte(nil), pk.Payload...))
 }
 
 func (h *nixHook) OnSessionEstablished(cl *mqtt.Client, _ packets.Packet) {

internal/broker/session.go

@@ -101,6 +101,11 @@ func (s *Session) Attach(b *Broker) {
 	s.b = b
 }
 
+// SetPresence 接线时在创建最终 presence 实现后注入（可替换占位）。
+func (s *Session) SetPresence(p PresenceSink) {
+	s.presence = p
+}
+
 func (s *Session) OnSessionEstablished(ctx context.Context, conn port.ConnInfo) error {
 	if s.b != nil {
 		s.b.startHandshakeDeadline(conn.EndpointID, conn.ConnID, handshakeTimeout)