更新项目配置，修改 Go 版本至 1.24，添加依赖项，重构主程序以加载配置和初始化服务，删除不再使用的远程目标配置文件。

cmii-uav-watchdog/services/heartbeat_service.go

@@ -0,0 +1,69 @@
+package services
+
+import (
+	"cmii-uav-watchdog-common/models"
+	"errors"
+	"time"
+)
+
+// HeartbeatService 心跳服务
+type HeartbeatService struct {
+	authService *AuthService
+	totpService *TOTPService
+}
+
+// NewHeartbeatService 创建心跳服务
+func NewHeartbeatService() *HeartbeatService {
+	return &HeartbeatService{
+		authService: NewAuthService(),
+		totpService: NewTOTPService(),
+	}
+}
+
+// ProcessHeartbeat 处理心跳请求
+func (hs *HeartbeatService) ProcessHeartbeat(req models.HeartbeatRequest) (*models.HeartbeatResponse, error) {
+	// 检查时间戳是否有效
+	if !hs.isTimestampValid(req.Timestamp) {
+		return nil, errors.New("无效的时间戳")
+	}
+
+	// 添加主机信息到集合
+	hs.authService.AddHostInfo(req.HostInfo)
+
+	// 检查是否携带totp，如果为空立即返回
+	if req.TOTPCode == "" {
+		return &models.HeartbeatResponse{
+			Authorized:       false,
+			TOTPCode:         "",
+			Timestamp:        time.Now().Unix(),
+			SecondTOTPSecret: "",
+		}, nil
+	}
+
+	// 检查totp密码是都有效
+
+	// 检查主机是否已授权
+	authorized := hs.authService.IsHostAuthorized(req.HostInfo)
+
+	// 生成TOTP验证码
+	totpCode, err := hs.totpService.GenerateTOTP()
+	if err != nil {
+		return nil, err
+	}
+
+	// 返回心跳响应
+	return &models.HeartbeatResponse{
+		Authorized: authorized,
+		TOTPCode:   totpCode,
+		Timestamp:  time.Now().Unix(),
+	}, nil
+}
+
+// isTimestampValid 检查时间戳是否有效
+func (hs *HeartbeatService) isTimestampValid(timestamp int64) bool {
+	now := time.Now().Unix()
+	diff := now - timestamp
+
+	// 允许5分钟的时间偏差
+	return diff < 300 && diff > -300
+}