mirror of
https://github.com/minio/minio.git
synced 2024-12-25 22:55:54 -05:00
94 lines
2.8 KiB
Go
94 lines
2.8 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 (
|
|
"bytes"
|
|
"context"
|
|
"errors"
|
|
"io"
|
|
"net/http"
|
|
|
|
"github.com/minio/minio/internal/hash"
|
|
)
|
|
|
|
var errConfigNotFound = errors.New("config file not found")
|
|
|
|
func readConfigWithMetadata(ctx context.Context, store objectIO, configFile string) ([]byte, ObjectInfo, error) {
|
|
r, err := store.GetObjectNInfo(ctx, minioMetaBucket, configFile, nil, http.Header{}, readLock, ObjectOptions{})
|
|
if err != nil {
|
|
// Treat object not found as config not found.
|
|
if isErrObjectNotFound(err) {
|
|
return nil, ObjectInfo{}, errConfigNotFound
|
|
}
|
|
|
|
return nil, ObjectInfo{}, err
|
|
}
|
|
defer r.Close()
|
|
|
|
buf, err := io.ReadAll(r)
|
|
if err != nil {
|
|
return nil, ObjectInfo{}, err
|
|
}
|
|
if len(buf) == 0 {
|
|
return nil, ObjectInfo{}, errConfigNotFound
|
|
}
|
|
return buf, r.ObjInfo, nil
|
|
}
|
|
|
|
func readConfig(ctx context.Context, store objectIO, configFile string) ([]byte, error) {
|
|
buf, _, err := readConfigWithMetadata(ctx, store, configFile)
|
|
return buf, err
|
|
}
|
|
|
|
type objectDeleter interface {
|
|
DeleteObject(ctx context.Context, bucket, object string, opts ObjectOptions) (ObjectInfo, error)
|
|
}
|
|
|
|
func deleteConfig(ctx context.Context, objAPI objectDeleter, configFile string) error {
|
|
_, err := objAPI.DeleteObject(ctx, minioMetaBucket, configFile, ObjectOptions{
|
|
DeletePrefix: true,
|
|
})
|
|
if err != nil && isErrObjectNotFound(err) {
|
|
return errConfigNotFound
|
|
}
|
|
return err
|
|
}
|
|
|
|
func saveConfig(ctx context.Context, store objectIO, configFile string, data []byte) error {
|
|
hashReader, err := hash.NewReader(bytes.NewReader(data), int64(len(data)), "", getSHA256Hash(data), int64(len(data)))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
_, err = store.PutObject(ctx, minioMetaBucket, configFile, NewPutObjReader(hashReader), ObjectOptions{MaxParity: true})
|
|
return err
|
|
}
|
|
|
|
func checkConfig(ctx context.Context, objAPI ObjectLayer, configFile string) error {
|
|
if _, err := objAPI.GetObjectInfo(ctx, minioMetaBucket, configFile, ObjectOptions{}); err != nil {
|
|
// Treat object not found as config not found.
|
|
if isErrObjectNotFound(err) {
|
|
return errConfigNotFound
|
|
}
|
|
|
|
return err
|
|
}
|
|
return nil
|
|
}
|