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|
package storage
import (
"bytes"
"context"
"fmt"
"io"
"lain/config"
"path/filepath"
"time"
"github.com/minio/minio-go/v7"
"github.com/minio/minio-go/v7/pkg/credentials"
)
var minioClient *minio.Client
func InitMinIO() error {
client, err := minio.New(config.MinIO.Endpoint, &minio.Options{
Creds: credentials.NewStaticV4(config.MinIO.AccessKey, config.MinIO.SecretKey, ""),
Secure: config.MinIO.UseSSL,
})
if err != nil {
return fmt.Errorf("failed to create minio client: %w", err)
}
ctx := context.Background()
exists, err := client.BucketExists(ctx, config.MinIO.BucketName)
if err != nil {
return fmt.Errorf("failed to check bucket existence: %w", err)
}
if !exists {
err = client.MakeBucket(ctx, config.MinIO.BucketName, minio.MakeBucketOptions{})
if err != nil {
return fmt.Errorf("failed to create bucket: %w", err)
}
}
minioClient = client
return nil
}
func UploadAttachment(userEmail string, emailID uint, filename string, data []byte, contentType string) (string, error) {
if minioClient == nil {
return "", fmt.Errorf("minio client not initialized")
}
path := fmt.Sprintf("attachments/%s/%d/%s", userEmail, emailID, filename)
ctx := context.Background()
_, err := minioClient.PutObject(
ctx,
config.MinIO.BucketName,
path,
bytes.NewReader(data),
int64(len(data)),
minio.PutObjectOptions{
ContentType: contentType,
},
)
if err != nil {
return "", fmt.Errorf("failed to upload attachment: %w", err)
}
return path, nil
}
func DownloadAttachment(path string) ([]byte, error) {
if minioClient == nil {
return nil, fmt.Errorf("minio client not initialized")
}
ctx := context.Background()
object, err := minioClient.GetObject(ctx, config.MinIO.BucketName, path, minio.GetObjectOptions{})
if err != nil {
return nil, fmt.Errorf("failed to get attachment object: %w", err)
}
defer object.Close()
data, err := io.ReadAll(object)
if err != nil {
return nil, fmt.Errorf("failed to read attachment data: %w", err)
}
return data, nil
}
func DeleteAttachment(path string) error {
if minioClient == nil {
return fmt.Errorf("minio client not initialized")
}
ctx := context.Background()
err := minioClient.RemoveObject(ctx, config.MinIO.BucketName, path, minio.RemoveObjectOptions{})
if err != nil {
return fmt.Errorf("failed to delete attachment: %w", err)
}
return nil
}
func DeleteAttachmentsByEmail(userEmail string, emailID uint) error {
if minioClient == nil {
return fmt.Errorf("minio client not initialized")
}
ctx := context.Background()
prefix := fmt.Sprintf("attachments/%s/%d/", userEmail, emailID)
objectCh := minioClient.ListObjects(ctx, config.MinIO.BucketName, minio.ListObjectsOptions{
Prefix: prefix,
Recursive: true,
})
for object := range objectCh {
if object.Err != nil {
return fmt.Errorf("failed to list attachments: %w", object.Err)
}
err := minioClient.RemoveObject(ctx, config.MinIO.BucketName, object.Key, minio.RemoveObjectOptions{})
if err != nil {
return fmt.Errorf("failed to delete attachment %s: %w", object.Key, err)
}
}
return nil
}
func GetAttachmentURL(path string, expiryDuration time.Duration) (string, error) {
if minioClient == nil {
return "", fmt.Errorf("minio client not initialized")
}
ctx := context.Background()
url, err := minioClient.PresignedGetObject(ctx, config.MinIO.BucketName, path, expiryDuration, nil)
if err != nil {
return "", fmt.Errorf("failed to generate presigned url: %w", err)
}
return url.String(), nil
}
func GetAttachmentFilename(path string) string {
return filepath.Base(path)
}
func AttachmentExists(path string) (bool, error) {
if minioClient == nil {
return false, fmt.Errorf("minio client not initialized")
}
ctx := context.Background()
_, err := minioClient.StatObject(ctx, config.MinIO.BucketName, path, minio.StatObjectOptions{})
if err != nil {
errResponse := minio.ToErrorResponse(err)
if errResponse.Code == "NoSuchKey" {
return false, nil
}
return false, fmt.Errorf("failed to check attachment existence: %w", err)
}
return true, nil
}
|
