126 lines
2.9 KiB
Go
126 lines
2.9 KiB
Go
package utils
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import (
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"crypto/md5"
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"encoding/base64"
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"encoding/hex"
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"fmt"
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"git.hpds.cc/Component/logging"
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"go.uber.org/zap"
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"hpds-iot-web/pkg/minio"
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"io"
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"os"
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"path"
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"path/filepath"
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"strings"
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)
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func CopyFile(src, dst string) error {
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sourceFileStat, err := os.Stat(src)
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if err != nil {
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return err
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}
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if !sourceFileStat.Mode().IsRegular() {
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return fmt.Errorf("%s is not a regular file", src)
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}
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source, err := os.Open(src)
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if err != nil {
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return err
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}
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defer func(source *os.File) {
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_ = source.Close()
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}(source)
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destination, err := os.Create(dst)
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if err != nil {
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return err
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}
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defer func(destination *os.File) {
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_ = destination.Close()
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}(destination)
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_, err = io.Copy(destination, source)
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return err
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}
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func PathExists(path string) bool {
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_, err := os.Stat(path)
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if err == nil {
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return true
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}
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if os.IsNotExist(err) {
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return false
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}
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return false
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}
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// ReadFile 读取到file中，再利用ioutil将file直接读取到[]byte中, 这是最优
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func ReadFile(fn string) []byte {
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f, err := os.Open(fn)
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if err != nil {
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logging.L().Error("Read File", zap.String("File Name", fn), zap.Error(err))
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return nil
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}
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defer func(f *os.File) {
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_ = f.Close()
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}(f)
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fd, err := io.ReadAll(f)
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if err != nil {
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logging.L().Error("Read File To buff", zap.String("File Name", fn), zap.Error(err))
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return nil
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}
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return fd
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}
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func GetFileName(fn string) string {
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fileType := path.Ext(fn)
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return strings.TrimSuffix(fn, fileType)
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}
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func GetFileNameAndExt(fn string) string {
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_, fileName := filepath.Split(fn)
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return fileName
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}
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func GetFileMd5(data []byte) string {
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hash := md5.New()
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hash.Write(data)
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return hex.EncodeToString(hash.Sum(nil))
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}
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func DownloadMinioFileToLocalPath(accessUrl, dstPath, fileName, protocol, endpoint, bucket, accessKeyId, secretAccessKey string,
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logger *logging.Logger) {
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if !PathExists(path.Join(dstPath, fileName)) {
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dPath := strings.Replace(accessUrl, fmt.Sprintf("%s://%s/", protocol, endpoint), "", 1)
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dPath = strings.Replace(dPath, bucket, "", 1)
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minioCli := minio.NewClient(accessKeyId, secretAccessKey, endpoint, false, logger)
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imgByte, err := minioCli.GetObject(dPath, bucket)
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if err != nil {
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logger.With(zap.String("源文件名", accessUrl)).
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With(zap.String("文件名", path.Join(dstPath, fileName))).
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Error("文件下载", zap.Error(err))
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}
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err = os.MkdirAll(dstPath, os.ModePerm)
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if err != nil {
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logger.With(zap.String("源文件名", accessUrl)).
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With(zap.String("文件名", path.Join(dstPath, fileName))).
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Error("创建文件下载目录", zap.Error(err))
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}
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err = os.WriteFile(path.Join(dstPath, fileName), imgByte, os.ModePerm)
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if err != nil {
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logger.With(zap.String("源文件名", accessUrl)).
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With(zap.String("文件名", path.Join(dstPath, fileName))).
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Error("文件写入", zap.Error(err))
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}
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}
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}
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func FileToBase64(fn string) string {
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buff := ReadFile(fn)
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return base64.StdEncoding.EncodeToString(buff) // 加密成base64字符串
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}
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