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checksum.go
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checksum.go
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/*
Copyright (C) 2022-2023 ApeCloud Co., Ltd
This file is part of KubeBlocks project
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 utils
import (
"crypto/sha256"
"fmt"
"io"
"os"
"strings"
"github.com/kubesphere/kubekey/v3/cmd/kk/pkg/core/util"
"github.com/kubesphere/kubekey/v3/cmd/kk/pkg/files"
cfgcore "github.com/apecloud/kubeblocks/pkg/configuration/core"
)
func getSha256sumFile(binary *files.KubeBinary) string {
return fmt.Sprintf("%s.sum.%s", binary.Path(), "sha256")
}
func CheckSha256sum(binary *files.KubeBinary) error {
checksumFile := getSha256sumFile(binary)
if !util.IsExist(checksumFile) {
return cfgcore.MakeError("checksum file %s is not exist", checksumFile)
}
checksum, err := calSha256sum(binary.Path())
if err != nil {
return err
}
data, err := os.ReadFile(checksumFile)
if err != nil {
return err
}
if strings.TrimSpace(string(data)) == checksum {
return nil
}
return cfgcore.MakeError("checksum of %s is not match, [%s] vs [%s]", binary.ID, string(data), checksum)
}
func calSha256sum(path string) (string, error) {
file, err := os.Open(path)
if err != nil {
return "", err
}
defer file.Close()
data, err := io.ReadAll(file)
if err != nil {
return "", err
}
return fmt.Sprintf("%x", sha256.Sum256(data)), nil
}
func WriteSha256sum(binary *files.KubeBinary) error {
checksumFile := getSha256sumFile(binary)
sum, err := calSha256sum(binary.Path())
if err != nil {
return err
}
return util.WriteFile(checksumFile, []byte(sum))
}