611 lines
15 KiB
Go
611 lines
15 KiB
Go
package layer
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import (
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"context"
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stderrors "errors"
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"fmt"
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"io"
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"sort"
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"strconv"
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"strings"
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"time"
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"github.com/nspcc-dev/neofs-s3-gw/api"
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"github.com/nspcc-dev/neofs-s3-gw/api/data"
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"github.com/nspcc-dev/neofs-s3-gw/api/errors"
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"github.com/nspcc-dev/neofs-sdk-go/object"
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"github.com/nspcc-dev/neofs-sdk-go/user"
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"go.uber.org/zap"
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)
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const (
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UploadIDAttributeName = "S3-Upload-Id"
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UploadPartNumberAttributeName = "S3-Upload-Part-Number"
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UploadKeyAttributeName = "S3-Upload-Key"
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UploadCompletedParts = "S3-Completed-Parts"
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UploadPartKeyPrefix = ".upload-"
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MaxSizeUploadsList = 1000
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MaxSizePartsList = 1000
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UploadMinPartNumber = 1
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UploadMaxPartNumber = 10000
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uploadMinSize = 5 * 1048576 // 5MB
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uploadMaxSize = 5 * 1073741824 // 5GB
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)
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type (
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UploadInfoParams struct {
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UploadID string
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Bkt *data.BucketInfo
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Key string
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}
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UploadPartParams struct {
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Info *UploadInfoParams
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PartNumber int
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Size int64
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Reader io.Reader
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Header map[string]string
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}
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UploadCopyParams struct {
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Info *UploadInfoParams
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SrcObjInfo *data.ObjectInfo
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PartNumber int
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Range *RangeParams
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}
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CompleteMultipartParams struct {
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Info *UploadInfoParams
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Parts []*CompletedPart
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}
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CompletedPart struct {
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ETag string
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PartNumber int
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}
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Part struct {
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ETag string
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LastModified string
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PartNumber int
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Size int64
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}
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ListMultipartUploadsParams struct {
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Bkt *data.BucketInfo
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Delimiter string
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EncodingType string
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KeyMarker string
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MaxUploads int
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Prefix string
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UploadIDMarker string
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}
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ListPartsParams struct {
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Info *UploadInfoParams
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MaxParts int
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PartNumberMarker int
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}
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ListPartsInfo struct {
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Parts []*Part
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Owner *user.ID
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NextPartNumberMarker int
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IsTruncated bool
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}
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ListMultipartUploadsInfo struct {
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Prefixes []string
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Uploads []*UploadInfo
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IsTruncated bool
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NextKeyMarker string
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NextUploadIDMarker string
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}
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UploadInfo struct {
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IsDir bool
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Key string
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UploadID string
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Owner *user.ID
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Created time.Time
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}
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)
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func (n *layer) UploadPart(ctx context.Context, p *UploadPartParams) (*data.ObjectInfo, error) {
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if p.PartNumber != 0 {
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if _, err := n.GetUploadInitInfo(ctx, p.Info); err != nil {
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return nil, err
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}
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}
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if p.Size > uploadMaxSize {
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return nil, errors.GetAPIError(errors.ErrEntityTooLarge)
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}
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if p.Header == nil {
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p.Header = make(map[string]string)
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}
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appendUploadHeaders(p.Header, p.Info.UploadID, p.Info.Key, p.PartNumber)
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params := &PutSystemObjectParams{
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BktInfo: p.Info.Bkt,
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ObjName: FormUploadPartName(p.Info.UploadID, p.Info.Key, p.PartNumber),
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Metadata: p.Header,
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Prefix: "",
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Reader: p.Reader,
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}
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return n.PutSystemObject(ctx, params)
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}
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func (n *layer) UploadPartCopy(ctx context.Context, p *UploadCopyParams) (*data.ObjectInfo, error) {
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if _, err := n.GetUploadInitInfo(ctx, p.Info); err != nil {
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return nil, err
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}
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if p.Range != nil {
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if p.Range.End-p.Range.Start > uploadMaxSize {
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return nil, errors.GetAPIError(errors.ErrEntityTooLarge)
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}
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if p.Range.End > uint64(p.SrcObjInfo.Size) {
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return nil, errors.GetAPIError(errors.ErrInvalidCopyPartRangeSource)
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}
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} else {
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if p.SrcObjInfo.Size > uploadMaxSize {
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return nil, errors.GetAPIError(errors.ErrEntityTooLarge)
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}
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}
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metadata := make(map[string]string)
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appendUploadHeaders(metadata, p.Info.UploadID, p.Info.Key, p.PartNumber)
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pr, pw := io.Pipe()
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go func() {
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err := n.GetObject(ctx, &GetObjectParams{
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ObjectInfo: p.SrcObjInfo,
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Writer: pw,
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Range: p.Range,
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})
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if err = pw.CloseWithError(err); err != nil {
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n.log.Error("could not get object", zap.Error(err))
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}
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}()
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return n.PutSystemObject(ctx, &PutSystemObjectParams{
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BktInfo: p.Info.Bkt,
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ObjName: FormUploadPartName(p.Info.UploadID, p.Info.Key, p.PartNumber),
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Metadata: metadata,
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Prefix: "",
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Reader: pr,
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})
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}
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// implements io.Reader of payloads of the object list stored in the NeoFS network.
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type multiObjectReader struct {
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ctx context.Context
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layer *layer
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prm getParams
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curReader io.Reader
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parts []*data.ObjectInfo
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}
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func (x *multiObjectReader) Read(p []byte) (n int, err error) {
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if x.curReader != nil {
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n, err = x.curReader.Read(p)
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if !stderrors.Is(err, io.EOF) {
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return n, err
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}
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}
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if len(x.parts) == 0 {
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return n, io.EOF
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}
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x.prm.oid = x.parts[0].ID
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x.curReader, err = x.layer.initObjectPayloadReader(x.ctx, x.prm)
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if err != nil {
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return n, fmt.Errorf("init payload reader for the next part: %w", err)
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}
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x.parts = x.parts[1:]
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next, err := x.Read(p[n:])
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return n + next, err
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}
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func (n *layer) CompleteMultipartUpload(ctx context.Context, p *CompleteMultipartParams) (*data.ObjectInfo, error) {
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var (
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obj *data.ObjectInfo
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partsAttrValue string
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)
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for i := 1; i < len(p.Parts); i++ {
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if p.Parts[i].PartNumber <= p.Parts[i-1].PartNumber {
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return nil, errors.GetAPIError(errors.ErrInvalidPartOrder)
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}
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}
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objects, err := n.getUploadParts(ctx, p.Info)
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if err != nil {
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return nil, err
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}
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if len(objects) == 1 {
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obj, err = n.headLastVersionIfNotDeleted(ctx, p.Info.Bkt, p.Info.Key)
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if err != nil {
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if errors.IsS3Error(err, errors.ErrNoSuchKey) {
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return nil, errors.GetAPIError(errors.ErrInvalidPart)
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}
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return nil, err
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}
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if obj != nil && obj.Headers[UploadIDAttributeName] == p.Info.UploadID {
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return obj, nil
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}
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return nil, errors.GetAPIError(errors.ErrInvalidPart)
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}
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if _, ok := objects[0]; !ok {
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n.log.Error("could not get init multipart upload",
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zap.Stringer("bucket id", p.Info.Bkt.CID),
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zap.String("uploadID", p.Info.UploadID),
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zap.String("uploadKey", p.Info.Key),
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)
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// we return InternalError because if we are here it means we've checked InitPart in handler before and
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// received successful result, it's strange we didn't get the InitPart again
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return nil, errors.GetAPIError(errors.ErrInternalError)
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}
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// keep in mind objects[0] is the init part
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if len(objects) <= len(p.Parts) {
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return nil, errors.GetAPIError(errors.ErrInvalidPart)
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}
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parts := make([]*data.ObjectInfo, 0, len(p.Parts))
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for i, part := range p.Parts {
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info := objects[part.PartNumber]
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if info == nil || part.ETag != info.HashSum {
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return nil, errors.GetAPIError(errors.ErrInvalidPart)
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}
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// for the last part we have no minimum size limit
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if i != len(p.Parts)-1 && info.Size < uploadMinSize {
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return nil, errors.GetAPIError(errors.ErrEntityTooSmall)
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}
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parts = append(parts, info)
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partsAttrValue += strconv.Itoa(part.PartNumber) + "=" + strconv.FormatInt(info.Size, 10) + ","
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}
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initMetadata := objects[0].Headers
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if len(objects[0].ContentType) != 0 {
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initMetadata[api.ContentType] = objects[0].ContentType
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}
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/* We will keep "S3-Upload-Id" attribute in a completed object to determine if it is a "common" object or a completed object.
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We will need to differ these objects if something goes wrong during completing multipart upload.
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I.e. we had completed the object but didn't put tagging/acl for some reason */
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delete(initMetadata, UploadPartNumberAttributeName)
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delete(initMetadata, UploadKeyAttributeName)
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delete(initMetadata, attrVersionsIgnore)
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delete(initMetadata, objectSystemAttributeName)
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delete(initMetadata, versionsUnversionedAttr)
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initMetadata[UploadCompletedParts] = partsAttrValue[:len(partsAttrValue)-1]
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r := &multiObjectReader{
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ctx: ctx,
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layer: n,
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parts: parts,
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}
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r.prm.cid = p.Info.Bkt.CID
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obj, err = n.PutObject(ctx, &PutObjectParams{
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BktInfo: p.Info.Bkt,
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Object: p.Info.Key,
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Reader: r,
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Header: initMetadata,
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})
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if err != nil {
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n.log.Error("could not put a completed object (multipart upload)",
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zap.String("uploadID", p.Info.UploadID),
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zap.String("uploadKey", p.Info.Key),
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zap.Error(err))
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return nil, errors.GetAPIError(errors.ErrInternalError)
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}
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for partNum, objInfo := range objects {
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if partNum == 0 {
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continue
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}
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if err = n.objectDelete(ctx, p.Info.Bkt.CID, objInfo.ID); err != nil {
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n.log.Warn("could not delete upload part",
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zap.Stringer("object id", objInfo.ID),
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zap.Stringer("bucket id", p.Info.Bkt.CID),
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zap.Error(err))
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}
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n.systemCache.Delete(systemObjectKey(p.Info.Bkt, FormUploadPartName(p.Info.UploadID, p.Info.Key, partNum)))
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}
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return obj, nil
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}
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func (n *layer) ListMultipartUploads(ctx context.Context, p *ListMultipartUploadsParams) (*ListMultipartUploadsInfo, error) {
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var result ListMultipartUploadsInfo
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if p.MaxUploads == 0 {
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return &result, nil
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}
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f := &findParams{
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attr: [2]string{UploadPartNumberAttributeName, "0"},
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cid: p.Bkt.CID,
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}
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ids, err := n.objectSearch(ctx, f)
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if err != nil {
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return nil, err
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}
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uploads := make([]*UploadInfo, 0, len(ids))
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uniqDirs := make(map[string]struct{})
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for i := range ids {
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meta, err := n.objectHead(ctx, p.Bkt.CID, ids[i])
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if err != nil {
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n.log.Warn("couldn't head object",
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zap.Stringer("object id", &ids[i]),
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zap.Stringer("bucket id", p.Bkt.CID),
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zap.Error(err))
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continue
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}
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info := uploadInfoFromMeta(meta, p.Prefix, p.Delimiter)
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if info != nil {
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if info.IsDir {
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if _, ok := uniqDirs[info.Key]; ok {
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continue
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}
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uniqDirs[info.Key] = struct{}{}
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}
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uploads = append(uploads, info)
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}
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}
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sort.Slice(uploads, func(i, j int) bool {
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if uploads[i].Key == uploads[j].Key {
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return uploads[i].UploadID < uploads[j].UploadID
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}
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return uploads[i].Key < uploads[j].Key
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})
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if p.KeyMarker != "" {
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if p.UploadIDMarker != "" {
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uploads = trimAfterUploadIDAndKey(p.KeyMarker, p.UploadIDMarker, uploads)
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} else {
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uploads = trimAfterUploadKey(p.KeyMarker, uploads)
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}
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}
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if len(uploads) > p.MaxUploads {
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result.IsTruncated = true
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uploads = uploads[:p.MaxUploads]
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result.NextUploadIDMarker = uploads[len(uploads)-1].UploadID
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result.NextKeyMarker = uploads[len(uploads)-1].Key
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}
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for _, ov := range uploads {
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if ov.IsDir {
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result.Prefixes = append(result.Prefixes, ov.Key)
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} else {
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result.Uploads = append(result.Uploads, ov)
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}
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}
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return &result, nil
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}
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func (n *layer) AbortMultipartUpload(ctx context.Context, p *UploadInfoParams) error {
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objects, err := n.getUploadParts(ctx, p)
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if err != nil {
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return err
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}
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for _, info := range objects {
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err := n.objectDelete(ctx, info.CID, info.ID)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func (n *layer) ListParts(ctx context.Context, p *ListPartsParams) (*ListPartsInfo, error) {
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var res ListPartsInfo
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objs, err := n.getUploadParts(ctx, p.Info)
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if err != nil {
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return nil, err
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}
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res.Owner = objs[0].Owner
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parts := make([]*Part, 0, len(objs))
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for num, objInfo := range objs {
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if num == 0 {
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continue
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}
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parts = append(parts, &Part{
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ETag: objInfo.HashSum,
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LastModified: objInfo.Created.UTC().Format(time.RFC3339),
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PartNumber: num,
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Size: objInfo.Size,
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})
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}
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sort.Slice(parts, func(i, j int) bool {
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return parts[i].PartNumber < parts[j].PartNumber
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})
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if p.PartNumberMarker != 0 {
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for i, part := range parts {
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if part.PartNumber > p.PartNumberMarker {
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parts = parts[i:]
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break
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}
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}
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}
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if len(parts) > p.MaxParts {
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res.IsTruncated = true
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res.NextPartNumberMarker = parts[p.MaxParts-1].PartNumber
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parts = parts[:p.MaxParts]
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}
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res.Parts = parts
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return &res, nil
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}
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func (n *layer) GetUploadInitInfo(ctx context.Context, p *UploadInfoParams) (*data.ObjectInfo, error) {
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info, err := n.HeadSystemObject(ctx, p.Bkt, FormUploadPartName(p.UploadID, p.Key, 0))
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if err != nil {
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if errors.IsS3Error(err, errors.ErrNoSuchKey) {
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return nil, errors.GetAPIError(errors.ErrNoSuchUpload)
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}
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return nil, err
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}
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return info, nil
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}
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func (n *layer) getUploadParts(ctx context.Context, p *UploadInfoParams) (map[int]*data.ObjectInfo, error) {
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// we search by UploadID attribute because parts are system objects which have system name not filename
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// and search in attributes by prefix is not supported
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f := &findParams{
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attr: [2]string{UploadIDAttributeName, p.UploadID},
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cid: p.Bkt.CID,
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}
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ids, err := n.objectSearch(ctx, f)
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if err != nil {
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return nil, err
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}
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res := make(map[int]*data.ObjectInfo)
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for i := range ids {
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meta, err := n.objectHead(ctx, p.Bkt.CID, ids[i])
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if err != nil {
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n.log.Warn("couldn't head a part of upload",
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zap.Stringer("object id", &ids[i]),
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zap.Stringer("bucket id", p.Bkt.CID),
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zap.Error(err))
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continue
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}
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info := objInfoFromMeta(p.Bkt, meta)
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// skip objects which are completed by "complete-multipart-upload" because they have "s3-Upload-Id" attribute
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if !isSystem(info) {
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continue
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}
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numStr := info.Headers[UploadPartNumberAttributeName]
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num, err := strconv.Atoi(numStr)
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if err != nil {
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return nil, errors.GetAPIError(errors.ErrInternalError)
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}
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res[num] = info
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if err = n.systemCache.PutObject(systemObjectKey(p.Bkt, FormUploadPartName(p.UploadID, p.Key, num)), info); err != nil {
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n.log.Warn("couldn't cache upload part", zap.Error(err))
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}
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}
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if len(res) == 0 {
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return nil, errors.GetAPIError(errors.ErrNoSuchUpload)
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}
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return res, nil
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}
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func FormUploadPartName(uploadID, key string, partNumber int) string {
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return UploadPartKeyPrefix + uploadID + "-" + key + "-" + strconv.Itoa(partNumber)
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}
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func trimAfterUploadIDAndKey(key, id string, uploads []*UploadInfo) []*UploadInfo {
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var res []*UploadInfo
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if len(uploads) != 0 && uploads[len(uploads)-1].Key < key {
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return res
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}
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for _, obj := range uploads {
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if obj.Key >= key && obj.UploadID > id {
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res = append(res, obj)
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}
|
|
}
|
|
|
|
return res
|
|
}
|
|
|
|
func trimAfterUploadKey(key string, objects []*UploadInfo) []*UploadInfo {
|
|
var result []*UploadInfo
|
|
if len(objects) != 0 && objects[len(objects)-1].Key <= key {
|
|
return result
|
|
}
|
|
for i, obj := range objects {
|
|
if obj.Key > key {
|
|
result = objects[i:]
|
|
break
|
|
}
|
|
}
|
|
|
|
return result
|
|
}
|
|
|
|
func uploadInfoFromMeta(meta *object.Object, prefix, delimiter string) *UploadInfo {
|
|
var (
|
|
isDir bool
|
|
creation time.Time
|
|
userHeaders = userHeaders(meta.Attributes())
|
|
key = userHeaders[UploadKeyAttributeName]
|
|
)
|
|
|
|
if !strings.HasPrefix(key, prefix) {
|
|
return nil
|
|
}
|
|
|
|
if val, ok := userHeaders[object.AttributeTimestamp]; ok {
|
|
if dt, err := strconv.ParseInt(val, 10, 64); err == nil {
|
|
creation = time.Unix(dt, 0)
|
|
}
|
|
}
|
|
|
|
if len(delimiter) > 0 {
|
|
tail := strings.TrimPrefix(key, prefix)
|
|
index := strings.Index(tail, delimiter)
|
|
if index >= 0 {
|
|
isDir = true
|
|
key = prefix + tail[:index+1]
|
|
}
|
|
}
|
|
|
|
return &UploadInfo{
|
|
IsDir: isDir,
|
|
Key: key,
|
|
UploadID: userHeaders[UploadIDAttributeName],
|
|
Owner: meta.OwnerID(),
|
|
Created: creation,
|
|
}
|
|
}
|
|
|
|
func appendUploadHeaders(metadata map[string]string, uploadID, key string, partNumber int) {
|
|
metadata[UploadIDAttributeName] = uploadID
|
|
metadata[UploadPartNumberAttributeName] = strconv.Itoa(partNumber)
|
|
metadata[UploadKeyAttributeName] = key
|
|
}
|