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s3.go
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s3.go
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package service
import (
"os"
"path/filepath"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/service/s3/s3manager"
"github.com/sirupsen/logrus"
"github.com/zjyl1994/b2webp/common/vars"
)
var S3Service s3Service
type s3Service struct{}
func (s s3Service) getSession() (*session.Session, error) {
return session.NewSession(&aws.Config{
Credentials: credentials.NewStaticCredentials(vars.S3Setting.AccessId, vars.S3Setting.AccessKey, ""),
Endpoint: aws.String(vars.S3Setting.Endpoint),
Region: aws.String(vars.S3Setting.Region),
S3ForcePathStyle: aws.Bool(true),
})
}
func (s s3Service) Get(remotePath, localPath string) error {
remotePath = filepath.Join(vars.S3Setting.ObjectPrefix, remotePath)
logrus.Infoln("S3Service GET", localPath, remotePath)
sess, err := s.getSession()
if err != nil {
return err
}
downloader := s3manager.NewDownloader(sess)
file, err := os.Create(localPath)
if err != nil {
return err
}
defer file.Close()
_, err = downloader.Download(file,
&s3.GetObjectInput{
Bucket: aws.String(vars.S3Setting.Bucket),
Key: aws.String(remotePath),
})
return err
}
func (s s3Service) Put(localPath, remotePath, contentType, contentMD5 string) error {
remotePath = filepath.Join(vars.S3Setting.ObjectPrefix, remotePath)
logrus.Infoln("S3Service PUT", localPath, remotePath)
fin, err := os.Open(localPath)
if err != nil {
return err
}
defer fin.Close()
s3sess, err := s.getSession()
if err != nil {
return err
}
_, err = s3.New(s3sess).PutObject(&s3.PutObjectInput{
Body: fin,
Bucket: aws.String(vars.S3Setting.Bucket),
Key: aws.String(remotePath),
ContentType: aws.String(contentType),
ContentMD5: aws.String(contentMD5),
})
return err
}
func (s s3Service) Delete(remotePath string) error {
remotePath = filepath.Join(vars.S3Setting.ObjectPrefix, remotePath)
logrus.Infoln("S3Service DELETE", remotePath)
s3sess, err := s.getSession()
if err != nil {
return err
}
_, err = s3.New(s3sess).DeleteObject(&s3.DeleteObjectInput{
Bucket: aws.String(vars.S3Setting.Bucket),
Key: aws.String(remotePath),
})
return err
}