| // Copyright (C) MongoDB, Inc. 2017-present. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may |
| // not use this file except in compliance with the License. You may obtain |
| // a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 |
| |
| package description |
| |
| import ( |
| "fmt" |
| ) |
| |
| // MaxStalenessSupported returns an error if the given server version |
| // does not support max staleness. |
| func MaxStalenessSupported(wireVersion *VersionRange) error { |
| if wireVersion != nil && wireVersion.Max < 5 { |
| return fmt.Errorf("max staleness is only supported for servers 3.4 or newer") |
| } |
| |
| return nil |
| } |
| |
| // ScramSHA1Supported returns an error if the given server version |
| // does not support scram-sha-1. |
| func ScramSHA1Supported(wireVersion *VersionRange) error { |
| if wireVersion != nil && wireVersion.Max < 3 { |
| return fmt.Errorf("SCRAM-SHA-1 is only supported for servers 3.0 or newer") |
| } |
| |
| return nil |
| } |
| |
| // SessionsSupported returns true of the given server version indicates that it supports sessions. |
| func SessionsSupported(wireVersion *VersionRange) bool { |
| return wireVersion != nil && wireVersion.Max >= 6 |
| } |