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

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
+}