memos/plugin/storage/s3/s3.go
2023-11-23 23:20:11 +08:00

92 lines
2.5 KiB
Go

package s3
import (
"context"
"errors"
"fmt"
"io"
"strings"
"github.com/aws/aws-sdk-go-v2/aws"
s3config "github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/credentials"
"github.com/aws/aws-sdk-go-v2/feature/s3/manager"
awss3 "github.com/aws/aws-sdk-go-v2/service/s3"
"github.com/aws/aws-sdk-go-v2/service/s3/types"
)
type Config struct {
AccessKey string
SecretKey string
Bucket string
EndPoint string
Region string
URLPrefix string
URLSuffix string
}
type Client struct {
Client *awss3.Client
Config *Config
}
func NewClient(ctx context.Context, config *Config) (*Client, error) {
// For some s3-compatible object stores, converting the hostname is not required,
// and not setting this option will result in not being able to access the corresponding object store address.
// But Aliyun OSS should disable this option
hostnameImmutable := true
if strings.HasSuffix(config.EndPoint, "aliyuncs.com") {
hostnameImmutable = false
}
resolver := aws.EndpointResolverWithOptionsFunc(func(service, region string, options ...any) (aws.Endpoint, error) {
return aws.Endpoint{
URL: config.EndPoint,
SigningRegion: config.Region,
HostnameImmutable: hostnameImmutable,
}, nil
})
awsConfig, err := s3config.LoadDefaultConfig(ctx,
s3config.WithEndpointResolverWithOptions(resolver),
s3config.WithCredentialsProvider(credentials.NewStaticCredentialsProvider(config.AccessKey, config.SecretKey, "")),
)
if err != nil {
return nil, err
}
client := awss3.NewFromConfig(awsConfig)
return &Client{
Client: client,
Config: config,
}, nil
}
func (client *Client) UploadFile(ctx context.Context, filename string, fileType string, src io.Reader) (string, error) {
uploader := manager.NewUploader(client.Client)
// set ACL according to if user set prefix
obj := awss3.PutObjectInput{
Bucket: aws.String(client.Config.Bucket),
Key: aws.String(filename),
Body: src,
ContentType: aws.String(fileType),
}
if client.Config.URLPrefix == "" {
obj.ACL = types.ObjectCannedACL(*aws.String("public-read"))
}
uploadOutput, err := uploader.Upload(ctx, &obj)
if err != nil {
return "", err
}
link := uploadOutput.Location
// If url prefix is set, use it as the file link.
if client.Config.URLPrefix != "" {
link = fmt.Sprintf("%s/%s%s", client.Config.URLPrefix, filename, client.Config.URLSuffix)
}
if link == "" {
return "", errors.New("failed to get file link")
}
return link, nil
}