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package s3
import (
"bytes"
"context"
"fmt"
"github.com/alist-org/alist/v3/server/common"
"io"
"net/url"
stdpath "path"
"strings"
"time"
"github.com/alist-org/alist/v3/internal/stream"
"github.com/alist-org/alist/v3/pkg/cron"
"github.com/alist-org/alist/v3/internal/driver"
"github.com/alist-org/alist/v3/internal/model"
"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"
log "github.com/sirupsen/logrus"
)
type S3 struct {
model.Storage
Addition
Session *session.Session
client *s3.S3
linkClient *s3.S3
config driver.Config
cron *cron.Cron
}
func (d *S3) Config() driver.Config {
return d.config
}
func (d *S3) GetAddition() driver.Additional {
return &d.Addition
}
func (d *S3) Init(ctx context.Context) error {
if d.Region == "" {
d.Region = "alist"
}
if d.config.Name == "Doge" {
// 多吉云每次临时生成的秘钥有效期为 2h，所以这里设置为 118 分钟重新生成一次
d.cron = cron.NewCron(time.Minute * 118)
d.cron.Do(func() {
err := d.initSession()
if err != nil {
log.Errorln("Doge init session error:", err)
}
d.client = d.getClient(false)
d.linkClient = d.getClient(true)
})
}
err := d.initSession()
if err != nil {
return err
}
d.client = d.getClient(false)
d.linkClient = d.getClient(true)
return nil
}
func (d *S3) Drop(ctx context.Context) error {
if d.cron != nil {
d.cron.Stop()
}
return nil
}
func (d *S3) List(ctx context.Context, dir model.Obj, args model.ListArgs) ([]model.Obj, error) {
if d.ListObjectVersion == "v2" {
return d.listV2(dir.GetPath(), args)
}
return d.listV1(dir.GetPath(), args)
}
func (d *S3) Link(ctx context.Context, file model.Obj, args model.LinkArgs) (*model.Link, error) {
path := getKey(file.GetPath(), false)
filename := stdpath.Base(path)
disposition := fmt.Sprintf(`attachment; filename*=UTF-8''%s`, url.PathEscape(filename))
if d.AddFilenameToDisposition {
disposition = fmt.Sprintf(`attachment; filename="%s"; filename*=UTF-8''%s`, filename, url.PathEscape(filename))
}
input := &s3.GetObjectInput{
Bucket: &d.Bucket,
Key: &path,
//ResponseContentDisposition: &disposition,
}
if d.CustomHost == "" {
input.ResponseContentDisposition = &disposition
}
req, _ := d.linkClient.GetObjectRequest(input)
var link model.Link
var err error
if d.CustomHost != "" {
if d.EnableCustomHostPresign {
link.URL, err = req.Presign(time.Hour * time.Duration(d.SignURLExpire))
} else {
err = req.Build()
link.URL = req.HTTPRequest.URL.String()
}
if d.RemoveBucket {
link.URL = strings.Replace(link.URL, "/"+d.Bucket, "", 1)
}
} else {
if common.ShouldProxy(d, filename) {
err = req.Sign()
link.URL = req.HTTPRequest.URL.String()
link.Header = req.HTTPRequest.Header
} else {
link.URL, err = req.Presign(time.Hour * time.Duration(d.SignURLExpire))
}
}
if err != nil {
return nil, err
}
return &link, nil
}
func (d *S3) MakeDir(ctx context.Context, parentDir model.Obj, dirName string) error {
return d.Put(ctx, &model.Object{
Path: stdpath.Join(parentDir.GetPath(), dirName),
}, &stream.FileStream{
Obj: &model.Object{
Name: getPlaceholderName(d.Placeholder),
Modified: time.Now(),
},
Reader: io.NopCloser(bytes.NewReader([]byte{})),
Mimetype: "application/octet-stream",
}, func(float64) {})
}
func (d *S3) Move(ctx context.Context, srcObj, dstDir model.Obj) error {
err := d.Copy(ctx, srcObj, dstDir)
if err != nil {
return err
}
return d.Remove(ctx, srcObj)
}
func (d *S3) Rename(ctx context.Context, srcObj model.Obj, newName string) error {
err := d.copy(ctx, srcObj.GetPath(), stdpath.Join(stdpath.Dir(srcObj.GetPath()), newName), srcObj.IsDir())
if err != nil {
return err
}
return d.Remove(ctx, srcObj)
}
func (d *S3) Copy(ctx context.Context, srcObj, dstDir model.Obj) error {
return d.copy(ctx, srcObj.GetPath(), stdpath.Join(dstDir.GetPath(), srcObj.GetName()), srcObj.IsDir())
}
func (d *S3) Remove(ctx context.Context, obj model.Obj) error {
if obj.IsDir() {
return d.removeDir(ctx, obj.GetPath())
}
return d.removeFile(obj.GetPath())
}
func (d *S3) Put(ctx context.Context, dstDir model.Obj, stream model.FileStreamer, up driver.UpdateProgress) error {
uploader := s3manager.NewUploader(d.Session)
if stream.GetSize() > s3manager.MaxUploadParts*s3manager.DefaultUploadPartSize {
uploader.PartSize = stream.GetSize() / (s3manager.MaxUploadParts - 1)
}
key := getKey(stdpath.Join(dstDir.GetPath(), stream.GetName()), false)
contentType := stream.GetMimetype()
log.Debugln("key:", key)
input := &s3manager.UploadInput{
Bucket: &d.Bucket,
Key: &key,
Body: stream,
ContentType: &contentType,
}
_, err := uploader.UploadWithContext(ctx, input)
return err
}
var _ driver.Driver = (*S3)(nil)
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