minio/internal/config/subnet/license.go

72 lines
2.0 KiB
Go

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package subnet
import (
jwtgo "github.com/golang-jwt/jwt/v4"
"github.com/minio/minio/internal/config"
"github.com/minio/pkg/env"
)
var (
// DefaultKVS - default KV config for subnet settings
DefaultKVS = config.KVS{
config.KV{
Key: config.License,
Value: "",
},
}
// HelpLicense - provides help for license config
HelpLicense = config.HelpKVS{
config.HelpKV{
Key: config.License,
Type: "string",
Description: "Subnet license token for the cluster",
Optional: true,
},
}
)
// Config represents the subnet related configuration
type Config struct {
// The subnet license token
License string `json:"license"`
}
func validateLicenseFormat(lic string) error {
if len(lic) == 0 {
return nil
}
// Only verifying that the string is a parseable JWT token as of now
_, _, err := new(jwtgo.Parser).ParseUnverified(lic, jwtgo.MapClaims{})
return err
}
// LookupConfig - lookup config and override with valid environment settings if any.
func LookupConfig(kvs config.KVS) (cfg Config, err error) {
if err = config.CheckValidKeys(config.SubnetSubSys, kvs, DefaultKVS); err != nil {
return cfg, err
}
cfg.License = env.Get(config.EnvMinIOSubnetLicense, kvs.Get(config.License))
return cfg, validateLicenseFormat(cfg.License)
}