120 lines
3.2 KiB
Go
120 lines
3.2 KiB
Go
package upload
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import (
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"bytes"
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"context"
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"errors"
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"io"
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"mime"
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"mime/multipart"
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"path/filepath"
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"strings"
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"time"
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"kra/pkg/utils"
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"github.com/minio/minio-go/v7"
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"github.com/minio/minio-go/v7/pkg/credentials"
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)
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var MinioClient *Minio // 优化性能，但是不支持动态配置
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// Minio MinIO存储
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type Minio struct {
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Client *minio.Client
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Bucket string
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BasePath string
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BucketURL string
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}
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// NewMinio 创建MinIO
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func NewMinio(accessKeyID, accessKeySecret, bucket, endpoint, basePath string, useSSL bool) *Minio {
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if MinioClient != nil {
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return MinioClient
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}
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return &Minio{
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Bucket: bucket,
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BasePath: basePath,
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}
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}
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// GetMinio 获取MinIO客户端实例
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func GetMinio(endpoint, accessKeyID, accessKeySecret, bucketName string, useSSL bool) (*Minio, error) {
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if MinioClient != nil {
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return MinioClient, nil
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}
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// Initialize minio client object.
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minioClient, err := minio.New(endpoint, &minio.Options{
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Creds: credentials.NewStaticV4(accessKeyID, accessKeySecret, ""),
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Secure: useSSL,
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})
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if err != nil {
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return nil, err
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}
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// 尝试创建bucket
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err = minioClient.MakeBucket(context.Background(), bucketName, minio.MakeBucketOptions{})
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if err != nil {
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// Check to see if we already own this bucket (which happens if you run this twice)
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exists, errBucketExists := minioClient.BucketExists(context.Background(), bucketName)
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if errBucketExists == nil && exists {
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// log.Printf("We already own %s\n", bucketName)
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} else {
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return nil, err
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}
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}
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MinioClient = &Minio{Client: minioClient, Bucket: bucketName}
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return MinioClient, nil
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}
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// UploadFile 上传文件
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func (m *Minio) UploadFile(file *multipart.FileHeader) (string, string, error) {
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f, openError := file.Open()
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if openError != nil {
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return "", "", errors.New("function file.Open() Failed, err:" + openError.Error())
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}
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filecontent := bytes.Buffer{}
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_, err := io.Copy(&filecontent, f)
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if err != nil {
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return "", "", errors.New("读取文件失败, err:" + err.Error())
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}
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f.Close()
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// 对文件名进行加密存储
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ext := filepath.Ext(file.Filename)
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filename := utils.MD5V([]byte(strings.TrimSuffix(file.Filename, ext))) + ext
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var filePathRes string
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if m.BasePath == "" {
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filePathRes = "uploads" + "/" + time.Now().Format("2006-01-02") + "/" + filename
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} else {
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filePathRes = m.BasePath + "/" + time.Now().Format("2006-01-02") + "/" + filename
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}
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// 根据文件扩展名检测 MIME 类型
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contentType := mime.TypeByExtension(ext)
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if contentType == "" {
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contentType = "application/octet-stream"
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}
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// 设置超时10分钟
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ctx, cancel := context.WithTimeout(context.Background(), time.Minute*10)
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defer cancel()
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// Upload the file with PutObject 大文件自动切换为分片上传
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info, err := m.Client.PutObject(ctx, m.Bucket, filePathRes, &filecontent, file.Size, minio.PutObjectOptions{ContentType: contentType})
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if err != nil {
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return "", "", errors.New("上传文件到minio失败, err:" + err.Error())
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}
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return m.BucketURL + "/" + info.Key, filePathRes, nil
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}
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// DeleteFile 删除文件
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func (m *Minio) DeleteFile(key string) error {
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ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
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defer cancel()
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// Delete the object from MinIO
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err := m.Client.RemoveObject(ctx, m.Bucket, key, minio.RemoveObjectOptions{})
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return err
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}
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