feat: 接线 serve 真实 auth/注册/管理/MQTT 与消息循环

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
@@ -57,31 +64,132 @@ 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,
+		next:  port.StubUplinkHandler{},
+		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
+
+	presApp := presence.New(presence.Config{
+		DB:       db,
+		Downlink: brk,
+		Conns:    &presenceConnTable{conns: memConns},
+	})
+	sess.SetPresence(presApp)
+
+	idApp := identity.New(identity.Config{
+		DB:                 db,
+		Hash:               hashPool,
+		Locks:              loginLocks,
+		Sessions:           sessionTokens,
+		MaxScheduleSeconds: int64(cfg.Limits.MaxScheduleSeconds),
+		Logger:             slog.Default(),
+		ConnControl:        brk,
+	})
+	_ = group.New(group.Config{
+		DB:              db,
+		Talk:            idApp,
+		Online:          presApp,
+		Downlink:        brk,
+		MaxGroupMembers: cfg.Limits.MaxGroupMembers,
+	})
+
+	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) {
+	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
+		},
+	})
+
+	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"))
-	})
-	// P-WIRE-BEGIN
-	mux.HandleFunc("GET /readyz", func(w http.ResponseWriter, r *http.Request) {
+			}),
+			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)
@@ -89,55 +197,117 @@ func runServe(ctx context.Context, cfg config.Config) error {
 				}
 				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)
+	<-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)
 	}
-		// 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
+
+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 +315,6 @@ 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 +328,3 @@ 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 +1,83 @@
+package main
+
+import (
+	"context"
+	"log/slog"
+
+	"git.asio.asia/nixevol/NixMsg/internal/app/message"
+	"git.asio.asia/nixevol/NixMsg/internal/app/port"
+)
+
+// appUplink 把 broker 生命周期接到消息连接表与投递推送。
+// 其余业务上行帧暂转交 next（可为空 Stub）；完整 HandleUplink 分发留后续波次。
+type appUplink struct {
+	msg   *message.App
+	conns *message.MemoryConns
+	next  port.UplinkHandler
+	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,
+	})
+	if u.next != nil {
+		return u.next.OnSessionEstablished(ctx, conn)
+	}
+	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
+	}
+	if u.next != nil {
+		return u.next.OnHandshakeComplete(ctx, hs)
+	}
+	return nil
+}
+
+func (u *appUplink) OnDisconnect(ctx context.Context, conn port.ConnInfo, reason port.DisconnectReason) {
+	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)
+	if u.next != nil {
+		u.next.OnDisconnect(ctx, conn, reason)
+	}
+}
+
+func (u *appUplink) HandleUplink(ctx context.Context, conn port.ConnInfo, payload []byte) error {
+	if u.next != nil {
+		return u.next.HandleUplink(ctx, conn, payload)
+	}
+	return nil
+}
+
+// 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/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 +43,29 @@
    - 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**  
+   - 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：`Session` 处理 hello/logout；其余 `HandleUplink` 仍为 `StubUplinkHandler`（不解析 send/ack/group 等）。管理注册设置 HTTP（A3）未实现，测试直接写 `settings` 表。群/在线模块已构造并注入 Downlink，但无上行入口调用。  
+   - 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：端连上后除握手/logout 外业务帧尚无 resp；F03–F16 等仍依赖后续接线。
+
+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。
+
 ### T0.2 2026-09-30
 
 1. **请求指纹规范化格式**  

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/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)