storj.io/minio@v0.0.0-20230509071714-0cbc90f649b1/pkg/madmin/config-commands.go (about)

     1  /*
     2   * MinIO Cloud Storage, (C) 2017-2019 MinIO, Inc.
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   *
    16   */
    17  
    18  package madmin
    19  
    20  import (
    21  	"bytes"
    22  	"context"
    23  	"io"
    24  	"net/http"
    25  )
    26  
    27  // GetConfig - returns the config.json of a minio setup, incoming data is encrypted.
    28  func (adm *AdminClient) GetConfig(ctx context.Context) ([]byte, error) {
    29  	// Execute GET on /minio/admin/v3/config to get config of a setup.
    30  	resp, err := adm.executeMethod(ctx,
    31  		http.MethodGet,
    32  		requestData{relPath: adminAPIPrefix + "/config"})
    33  	defer closeResponse(resp)
    34  	if err != nil {
    35  		return nil, err
    36  	}
    37  
    38  	if resp.StatusCode != http.StatusOK {
    39  		return nil, httpRespToErrorResponse(resp)
    40  	}
    41  
    42  	return DecryptData(adm.getSecretKey(), resp.Body)
    43  }
    44  
    45  // SetConfig - set config supplied as config.json for the setup.
    46  func (adm *AdminClient) SetConfig(ctx context.Context, config io.Reader) (err error) {
    47  	const maxConfigJSONSize = 256 * 1024 // 256KiB
    48  
    49  	// Read configuration bytes
    50  	configBuf := make([]byte, maxConfigJSONSize+1)
    51  	n, err := io.ReadFull(config, configBuf)
    52  	if err == nil {
    53  		return bytes.ErrTooLarge
    54  	}
    55  	if err != io.ErrUnexpectedEOF {
    56  		return err
    57  	}
    58  	configBytes := configBuf[:n]
    59  	econfigBytes, err := EncryptData(adm.getSecretKey(), configBytes)
    60  	if err != nil {
    61  		return err
    62  	}
    63  
    64  	reqData := requestData{
    65  		relPath: adminAPIPrefix + "/config",
    66  		content: econfigBytes,
    67  	}
    68  
    69  	// Execute PUT on /minio/admin/v3/config to set config.
    70  	resp, err := adm.executeMethod(ctx, http.MethodPut, reqData)
    71  
    72  	defer closeResponse(resp)
    73  	if err != nil {
    74  		return err
    75  	}
    76  
    77  	if resp.StatusCode != http.StatusOK {
    78  		return httpRespToErrorResponse(resp)
    79  	}
    80  
    81  	return nil
    82  }