}

const (
	defaultExpiry time.Duration = 1 * time.Hour
	minExpiry     time.Duration = 15 * time.Minute
	maxExpiry     time.Duration = 365 * 24 * time.Hour
)

// GetExpiryDuration - return parsed expiry duration.
func (l Config) GetExpiryDuration(dsecs string) (time.Duration, error) {
	if dsecs == "" {
		return defaultExpiry, nil
	}

	d, err := strconv.Atoi(dsecs)
	if err != nil {
		return 0, auth.ErrInvalidDuration

	groups, err := l.LDAP.SearchForUserGroups(conn, username, bindDN)
	if err != nil {
		return "", nil, err
	}

	return bindDN, groups, nil
}

// GetExpiryDuration - return parsed expiry duration.
func (l Config) GetExpiryDuration(dsecs string) (time.Duration, error) {
	if dsecs == "" {
		return l.stsExpiryDuration, nil
	}

	d, err := strconv.Atoi(dsecs)
	if err != nil {

			targetUser, targetGroups, err := globalIAMSys.LDAPConfig.LookupUserDN(f.AccessKey())
			if err != nil {
				return nil, err
			}
			expiryDur, err := globalIAMSys.LDAPConfig.GetExpiryDuration("")
			if err != nil {
				return nil, err
			}
			claims := make(map[string]interface{})
			claims[expClaim] = UTCNow().Add(expiryDur).Unix()
			for k, v := range f.permissions.CriticalOptions {

				ldapUserDN, strings.Join(groupDistNames, "`,`")))
		return
	}

	expiryDur, err := globalIAMSys.LDAPConfig.GetExpiryDuration(r.Form.Get(stsDurationSeconds))
	if err != nil {
		writeSTSErrorResponse(ctx, w, ErrSTSInvalidParameterValue, err)
		return
	}

	claims[expClaim] = UTCNow().Add(expiryDur).Unix()

			}
			ldapPolicies, _ := globalIAMSys.PolicyDBGet(targetUser, targetGroups...)
			if len(ldapPolicies) == 0 {
				return nil, errAuthentication
			}
			expiryDur, err := globalIAMSys.LDAPConfig.GetExpiryDuration("")
			if err != nil {
				return nil, err
			}
			claims := make(map[string]interface{})
			claims[expClaim] = UTCNow().Add(expiryDur).Unix()
			claims[ldapUser] = targetUser