github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/cli/cmd/infrastructure/utils/checksum.go (about)

     1  /*
     2  Copyright (C) 2022-2023 ApeCloud Co., Ltd
     3  
     4  This file is part of KubeBlocks project
     5  
     6  This program is free software: you can redistribute it and/or modify
     7  it under the terms of the GNU Affero General Public License as published by
     8  the Free Software Foundation, either version 3 of the License, or
     9  (at your option) any later version.
    10  
    11  This program is distributed in the hope that it will be useful
    12  but WITHOUT ANY WARRANTY; without even the implied warranty of
    13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14  GNU Affero General Public License for more details.
    15  
    16  You should have received a copy of the GNU Affero General Public License
    17  along with this program.  If not, see <http://www.gnu.org/licenses/>.
    18  */
    19  
    20  package utils
    21  
    22  import (
    23  	"crypto/sha256"
    24  	"fmt"
    25  	"io"
    26  	"os"
    27  	"strings"
    28  
    29  	"github.com/kubesphere/kubekey/v3/cmd/kk/pkg/core/util"
    30  	"github.com/kubesphere/kubekey/v3/cmd/kk/pkg/files"
    31  
    32  	cfgcore "github.com/1aal/kubeblocks/pkg/configuration/core"
    33  )
    34  
    35  func getSha256sumFile(binary *files.KubeBinary) string {
    36  	return fmt.Sprintf("%s.sum.%s", binary.Path(), "sha256")
    37  }
    38  
    39  func CheckSha256sum(binary *files.KubeBinary) error {
    40  	checksumFile := getSha256sumFile(binary)
    41  	if !util.IsExist(checksumFile) {
    42  		return cfgcore.MakeError("checksum file %s is not exist", checksumFile)
    43  	}
    44  
    45  	checksum, err := calSha256sum(binary.Path())
    46  	if err != nil {
    47  		return err
    48  	}
    49  
    50  	data, err := os.ReadFile(checksumFile)
    51  	if err != nil {
    52  		return err
    53  	}
    54  	if strings.TrimSpace(string(data)) == checksum {
    55  		return nil
    56  	}
    57  	return cfgcore.MakeError("checksum of %s is not match, [%s] vs [%s]", binary.ID, string(data), checksum)
    58  }
    59  
    60  func calSha256sum(path string) (string, error) {
    61  	file, err := os.Open(path)
    62  	if err != nil {
    63  		return "", err
    64  	}
    65  	defer file.Close()
    66  
    67  	data, err := io.ReadAll(file)
    68  	if err != nil {
    69  		return "", err
    70  	}
    71  	return fmt.Sprintf("%x", sha256.Sum256(data)), nil
    72  }
    73  
    74  func WriteSha256sum(binary *files.KubeBinary) error {
    75  	checksumFile := getSha256sumFile(binary)
    76  	sum, err := calSha256sum(binary.Path())
    77  	if err != nil {
    78  		return err
    79  	}
    80  	return util.WriteFile(checksumFile, []byte(sum))
    81  }