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Copy pathbucket-encryption.go
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60 lines (49 loc) · 1.82 KB
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/*
* MinIO Cloud Storage, (C) 2020 MinIO, Inc.
*
* 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"errors"
"io"
bucketsse "github.com/minio/minio/pkg/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) (*bucketsse.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) (*bucketsse.BucketSSEConfig, error) {
encConfig, err := bucketsse.ParseBucketSSEConfig(r)
if err != nil {
return nil, err
}
if len(encConfig.Rules) == 1 && encConfig.Rules[0].DefaultEncryptionAction.Algorithm == bucketsse.AES256 {
return encConfig, nil
}
return nil, errors.New("Unsupported bucket encryption configuration")
}