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[#122] Add replacing objects

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Signed-off-by: Denis Kirillov <denis@nspcc.ru>
This commit is contained in:
Denis Kirillov 2021-08-10 11:19:09 +03:00
parent c50a16a5e3
commit feb45d0633
2 changed files with 100 additions and 19 deletions
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15
api/layer/layer.go
View file

@ -320,11 +320,11 @@ func (n *layer) GetObjectInfo(ctx context.Context, bucketName, filename string)
return nil, err
}
return n.getObjectInfo(ctx, bkt, filename)
return n.headLastVersion(ctx, bkt, filename)
}
func (n *layer) getObjectInfo(ctx context.Context, bkt *BucketInfo, objectName string) (*ObjectInfo, error) {
oid, err := n.objectFindID(ctx, &findParams{cid: bkt.CID, val: objectName})
func (n *layer) getSettingsObjectInfo(ctx context.Context, bkt *BucketInfo) (*ObjectInfo, error) {
oid, err := n.objectFindID(ctx, &findParams{cid: bkt.CID, val: bktVersionSettingsObject})
if err != nil {
n.log.Error("could not find object id", zap.Error(err))
return nil, err
@ -527,12 +527,11 @@ func (n *layer) PutBucketVersioning(ctx context.Context, p *PutVersioningParams)
return nil, err
}
objectInfo, err := n.getObjectInfo(ctx, bucketInfo, bktVersionSettingsObject)
objectInfo, err := n.getSettingsObjectInfo(ctx, bucketInfo)
if err != nil {
n.log.Warn("couldn't get bucket version settings object, new one will be created",
zap.String("bucket_name", bucketInfo.Name),
zap.Stringer("cid", bucketInfo.CID),
zap.String("object_name", bktVersionSettingsObject),
zap.Error(err))
}
@ -588,5 +587,9 @@ func (n *layer) PutBucketVersioning(ctx context.Context, p *PutVersioningParams)
}
func (n *layer) GetBucketVersioning(ctx context.Context, bucketName string) (*ObjectInfo, error) {
return n.GetObjectInfo(ctx, bucketName, bktVersionSettingsObject)
bktInfo, err := n.GetBucketInfo(ctx, bucketName)
if err != nil {
return nil, err
}
return n.getSettingsObjectInfo(ctx, bktInfo)
}

104
api/layer/object.go
View file

@ -3,6 +3,7 @@ package layer
import (
"context"
"errors"
"fmt"
"io"
"net/url"
"sort"
@ -119,24 +120,37 @@ func (n *layer) objectPut(ctx context.Context, p *PutObjectParams) (*ObjectInfo,
own = n.Owner(ctx)
)
if p.Object == bktVersionSettingsObject {
return nil, fmt.Errorf("trying put bucket settings object")
}
if obj, err = url.QueryUnescape(p.Object); err != nil {
return nil, err
} else if bkt, err = n.GetBucketInfo(ctx, p.Bucket); err != nil {
}
if bkt, err = n.GetBucketInfo(ctx, p.Bucket); err != nil {
return nil, err
} else if err = n.checkObject(ctx, bkt.CID, p.Object); err != nil {
var errExist *apiErrors.ObjectAlreadyExists
if ok := errors.As(err, &errExist); ok {
errExist.Bucket = p.Bucket
errExist.Object = p.Object
return nil, errExist
}
}
if !apiErrors.IsS3Error(err, apiErrors.ErrNoSuchKey) {
return nil, err
}
lastVersionInfo, err := n.headLastVersion(ctx, bkt, p.Object)
if err != nil && !apiErrors.IsS3Error(err, apiErrors.ErrNoSuchKey) {
return nil, err
}
attributes := make([]*object.Attribute, 0, len(p.Header)+1)
var idsToDeleteArr []*object.ID
if lastVersionInfo != nil {
versionsDeletedStr := lastVersionInfo.Headers["S3-Versions-del"]
if len(versionsDeletedStr) != 0 {
versionsDeletedStr += ","
}
versionsDeletedStr += lastVersionInfo.ID().String()
deletedVersions := object.NewAttribute()
deletedVersions.SetKey("S3-Versions-del")
deletedVersions.SetValue(versionsDeletedStr)
attributes = append(attributes, deletedVersions)
idsToDeleteArr = append(idsToDeleteArr, lastVersionInfo.ID())
}
unix := strconv.FormatInt(time.Now().UTC().Unix(), 10)
@ -187,7 +201,7 @@ func (n *layer) objectPut(ctx context.Context, p *PutObjectParams) (*ObjectInfo,
n.log.Error("couldn't cache an object", zap.Error(err))
}
return &ObjectInfo{
objInfo := &ObjectInfo{
id: oid,
Owner: own,
@ -198,7 +212,71 @@ func (n *layer) objectPut(ctx context.Context, p *PutObjectParams) (*ObjectInfo,
Headers: p.Header,
ContentType: r.contentType,
HashSum: meta.PayloadChecksum().String(),
}, nil
}
for _, id := range idsToDeleteArr {
addr := object.NewAddress()
addr.SetObjectID(id)
addr.SetContainerID(bkt.CID)
if err = n.objectDelete(ctx, addr); err != nil {
n.log.Warn("couldn't delete object",
zap.Stringer("version id", id),
zap.Error(err))
}
}
return objInfo, nil
}
func (n *layer) headLastVersion(ctx context.Context, bkt *BucketInfo, objectName string) (*ObjectInfo, error) {
ids, err := n.objectSearch(ctx, &findParams{cid: bkt.CID, val: objectName})
if err != nil {
return nil, err
}
if len(ids) == 0 {
return nil, api.GetAPIError(api.ErrNoSuchKey)
}
infos := make([]*object.Object, 0, len(ids))
for _, id := range ids {
addr := object.NewAddress()
addr.SetContainerID(bkt.CID)
addr.SetObjectID(id)
meta, err := n.objectHead(ctx, addr)
if err != nil {
n.log.Warn("couldn't head object",
zap.Stringer("object id", id),
zap.Stringer("bucket id", bkt.CID),
zap.Error(err))
continue
}
infos = append(infos, meta)
}
sort.Slice(infos, func(i, j int) bool {
return infos[i].CreationEpoch() < infos[j].CreationEpoch() || (infos[i].CreationEpoch() == infos[j].CreationEpoch() && infos[i].ID().String() < infos[j].ID().String())
})
return objectInfoFromMeta(bkt, infos[len(infos)-1], "", ""), nil
//versionsToDeleteStr, ok := lastVersionInfo.Headers["S3-Versions-add"]
//versionsDeletedStr := lastVersionInfo.Headers["S3-Versions-del"]
//idsToDeleteArr := []*object.ID{lastVersionInfo.ID()}
//if ok {
// // for versioning mode only
// idsToDelete := strings.Split(versionsToDeleteStr, ",")
// for _, idStr := range idsToDelete {
// oid := object.NewID()
// if err = oid.Parse(idStr); err != nil {
// n.log.Warn("couldn't parse object id versions list",
// zap.String("versions id", versionsToDeleteStr),
// zap.Error(err))
// break
// }
// idsToDeleteArr = append(idsToDeleteArr, oid)
// }
//}
}
// objectDelete puts tombstone object into neofs.