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

			claims[ldapUser] = lookupResult.NormDN

				ldapActualUserDN, 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()

		// attribute.
		if _, ok := claims[ldapAttribPrefix+"sshPublicKey"]; !ok {
			return nil, errAuthentication
		}
	}

	expiryDur, err := globalIAMSys.LDAPConfig.GetExpiryDuration("")
	if err != nil {
		return nil, err
	}

	claims[expClaim] = UTCNow().Add(expiryDur).Unix()
	claims[ldapUserN] = user
	claims[ldapUser] = lookupResult.NormDN