minio/cmd/bucket-encryption.go
Harshavardhana 50a68a1791
allow S3 gateway to support object locked buckets (#13257)
- Supports object locked buckets that require
  PutObject() to set content-md5 always.
- Use SSE-S3 when S3 gateway is being used instead
  of SSE-KMS for auto-encryption.
2021-09-21 09:02:15 -07:00

62 lines
1.9 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 cmd
import (
"errors"
"io"
sse "github.com/minio/minio/internal/bucket/encryption"
)
// BucketSSEConfigSys - in-memory cache of bucket encryption config
type BucketSSEConfigSys struct{}
// NewBucketSSEConfigSys - Creates an empty in-memory bucket encryption configuration cache
func NewBucketSSEConfigSys() *BucketSSEConfigSys {
return &BucketSSEConfigSys{}
}
// Get - gets bucket encryption config for the given bucket.
func (sys *BucketSSEConfigSys) Get(bucket string) (*sse.BucketSSEConfig, error) {
if globalIsGateway {
objAPI := newObjectLayerFn()
if objAPI == nil {
return nil, errServerNotInitialized
}
return nil, BucketSSEConfigNotFound{Bucket: bucket}
}
return globalBucketMetadataSys.GetSSEConfig(bucket)
}
// validateBucketSSEConfig parses bucket encryption configuration and validates if it is supported by MinIO.
func validateBucketSSEConfig(r io.Reader) (*sse.BucketSSEConfig, error) {
encConfig, err := sse.ParseBucketSSEConfig(r)
if err != nil {
return nil, err
}
if len(encConfig.Rules) == 1 {
return encConfig, nil
}
return nil, errors.New("Unsupported bucket encryption configuration")
}