if errors.Is(err, errNoSuchServiceAccount) {
			lookupRes, groupDistNames, err := globalIAMSys.LDAPConfig.Bind(username, password)
			if err != nil {
				return false, err
			}
			ldapPolicies, _ := globalIAMSys.PolicyDBGet(lookupRes.NormDN, groupDistNames...)
			return len(ldapPolicies) > 0, nil
		}
		return subtle.ConstantTimeCompare([]byte(sa.Credentials.SecretKey), []byte(password)) == 1, nil
	}

	return nil
}

// PolicyDBGet - fetches policies associated with the given user or group, and
// additional groups if provided.
func (store *IAMStoreSys) PolicyDBGet(name string, groups ...string) ([]string, error) {
	if name == "" {
		return nil, errInvalidArgument
	}

	cache := store.rlock()
	defer store.runlock()

	policies, _, err := cache.policyDBGet(store, name, false, false)
	if err != nil {

	}))

	return
}

// PolicyDBGet - gets policy set on a user or group. If a list of groups is
// given, policies associated with them are included as well.
func (sys *IAMSys) PolicyDBGet(name string, groups ...string) ([]string, error) {
	if !sys.Initialized() {
		return nil, errServerNotInitialized
	}

	return sys.store.PolicyDBGet(name, groups...)
}

	claims[parentClaim] = user.AccessKey

	// Validate that user.AccessKey's policies can be retrieved - it may not
	// be in case the user is disabled.
	if _, err = globalIAMSys.PolicyDBGet(user.AccessKey, user.Groups...); err != nil {
		writeSTSErrorResponse(ctx, w, ErrSTSInvalidParameterValue, err)
		return
	}

	secret, err := getTokenSigningKey()
	if err != nil {

		opts.claims[ldapUser] = targetUser // DN
		opts.claims[ldapActualUser] = lookupResult.ActualDN

		// Check if this user or their groups have a policy applied.
		ldapPolicies, err := globalIAMSys.PolicyDBGet(targetUser, targetGroups...)
		if err != nil {
			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
			return
		}
		if len(ldapPolicies) == 0 {

		if err != nil {
			return nil, err
		}

	}

	if lookupResult == nil {
		return nil, errNoSuchUser
	}

	ldapPolicies, _ := globalIAMSys.PolicyDBGet(lookupResult.NormDN, targetGroups...)
	if len(ldapPolicies) == 0 {
		return nil, errSFTPUserHasNoPolicies
	}

	claims := make(map[string]interface{})
	for attribKey, attribValue := range lookupResult.Attributes {

		return
	}

	var stsAccountPolicy policy.Policy

	if sessionPolicy != nil {
		stsAccountPolicy = *sessionPolicy
	} else {
		policiesNames, err := globalIAMSys.PolicyDBGet(stsAccount.ParentUser, stsAccount.Groups...)
		if err != nil {
			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
			return
		}
		if len(policiesNames) == 0 {