4915433bd2
- Implement a new xl.json 2.0.0 format to support, this moves the entire marshaling logic to POSIX layer, top layer always consumes a common FileInfo construct which simplifies the metadata reads. - Implement list object versions - Migrate to siphash from crchash for new deployments for object placements. Fixes #2111
83 lines
2.5 KiB
Go
83 lines
2.5 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2018 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"bytes"
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"context"
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"errors"
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"github.com/minio/minio/cmd/logger"
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"github.com/minio/minio/pkg/hash"
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)
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var errConfigNotFound = errors.New("config file not found")
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func readConfig(ctx context.Context, objAPI ObjectLayer, configFile string) ([]byte, error) {
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var buffer bytes.Buffer
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// Read entire content by setting size to -1
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if err := objAPI.GetObject(ctx, minioMetaBucket, configFile, 0, -1, &buffer, "", ObjectOptions{}); err != nil {
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// Treat object not found as config not found.
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if isErrObjectNotFound(err) {
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return nil, errConfigNotFound
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}
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logger.GetReqInfo(ctx).AppendTags("configFile", configFile)
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logger.LogIf(ctx, err)
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return nil, err
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}
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// Return config not found on empty content.
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if buffer.Len() == 0 {
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return nil, errConfigNotFound
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}
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return buffer.Bytes(), nil
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}
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func deleteConfig(ctx context.Context, objAPI ObjectLayer, configFile string) error {
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_, err := objAPI.DeleteObject(ctx, minioMetaBucket, configFile, ObjectOptions{})
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if err != nil && isErrObjectNotFound(err) {
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return errConfigNotFound
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}
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return err
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}
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func saveConfig(ctx context.Context, objAPI ObjectLayer, configFile string, data []byte) error {
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hashReader, err := hash.NewReader(bytes.NewReader(data), int64(len(data)), "", getSHA256Hash(data), int64(len(data)), globalCLIContext.StrictS3Compat)
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if err != nil {
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return err
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}
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_, err = objAPI.PutObject(ctx, minioMetaBucket, configFile, NewPutObjReader(hashReader, nil, nil), ObjectOptions{})
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return err
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}
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func checkConfig(ctx context.Context, objAPI ObjectLayer, configFile string) error {
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if _, err := objAPI.GetObjectInfo(ctx, minioMetaBucket, configFile, ObjectOptions{}); err != nil {
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// Treat object not found as config not found.
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if isErrObjectNotFound(err) {
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return errConfigNotFound
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}
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logger.GetReqInfo(ctx).AppendTags("configFile", configFile)
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logger.LogIf(ctx, err)
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return err
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}
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return nil
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}
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