package deletesvc import ( "context" objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object" "github.com/nspcc-dev/neofs-api-go/pkg/owner" "github.com/nspcc-dev/neofs-node/pkg/core/object" headsvc "github.com/nspcc-dev/neofs-node/pkg/services/object/head" putsvc "github.com/nspcc-dev/neofs-node/pkg/services/object/put" objutil "github.com/nspcc-dev/neofs-node/pkg/services/object/util" "github.com/nspcc-dev/neofs-node/pkg/services/object_manager/placement" "github.com/pkg/errors" ) type Service struct { *cfg } type Option func(*cfg) type RelationHeader interface { HeadRelation(context.Context, *objectSDK.Address, *objutil.CommonPrm) (*object.Object, error) } type cfg struct { ownerID *owner.ID keyStorage *objutil.KeyStorage putSvc *putsvc.Service headSvc *headsvc.Service hdrLinking RelationHeader } func defaultCfg() *cfg { return new(cfg) } func NewService(opts ...Option) *Service { c := defaultCfg() for i := range opts { opts[i](c) } return &Service{ cfg: c, } } func (s *Service) Delete(ctx context.Context, prm *Prm) (*Response, error) { ownerID := s.ownerID if token := prm.common.SessionToken(); token != nil { ownerID = token.OwnerID() } if ownerID == nil { return nil, errors.Errorf("(%T) missing owner identifier", s) } addrList, err := s.getRelations(ctx, prm) if err != nil { return nil, errors.Wrapf(err, "(%T) could not get object relations", s) } content := object.NewTombstoneContent() content.SetAddressList(addrList...) data, err := content.MarshalBinary() if err != nil { return nil, errors.Wrapf(err, "(%T) could not marshal tombstone content", s) } r, err := s.putSvc.Put(ctx) if err != nil { return nil, errors.Wrapf(err, "(%T) could not open put stream", s) } // `WithoutSuccessTracking` option broadcast message to all container nodes. // For now there is no better solution to distributed tombstones with // content address storage (CAS) and one tombstone for several split // objects. if err := r.Init(new(putsvc.PutInitPrm). WithObject(newTombstone(ownerID, prm.addr.GetContainerID())). WithCommonPrm(prm.common). WithTraverseOption(placement.WithoutSuccessTracking()), // broadcast tombstone, maybe one ); err != nil { return nil, errors.Wrapf(err, "(%T) could not initialize tombstone stream", s) } if err := r.SendChunk(new(putsvc.PutChunkPrm). WithChunk(data), ); err != nil { return nil, errors.Wrapf(err, "(%T) could not send tombstone payload", s) } if _, err := r.Close(); err != nil { return nil, errors.Wrapf(err, "(%T) could not close tombstone stream", s) } return new(Response), nil } func (s *Service) getRelations(ctx context.Context, prm *Prm) ([]*objectSDK.Address, error) { var res []*objectSDK.Address if linking, err := s.hdrLinking.HeadRelation(ctx, prm.addr, prm.common); err != nil { cid := prm.addr.GetContainerID() for prev := prm.addr.GetObjectID(); prev != nil; { addr := objectSDK.NewAddress() addr.SetObjectID(prev) addr.SetContainerID(cid) headResult, err := s.headSvc.Head(ctx, new(headsvc.Prm). WithAddress(addr). WithCommonPrm(prm.common), ) if err != nil { return nil, errors.Wrapf(err, "(%T) could not receive Head result", s) } hdr := headResult.Header() id := hdr.GetID() prev = hdr.GetPreviousID() if rightChild := headResult.RightChild(); rightChild != nil { id = rightChild.GetID() prev = rightChild.GetPreviousID() } addr.SetObjectID(id) res = append(res, addr) } } else { childList := linking.GetChildren() res = make([]*objectSDK.Address, 0, len(childList)+1) for i := range childList { addr := objectSDK.NewAddress() addr.SetObjectID(childList[i]) addr.SetContainerID(prm.addr.GetContainerID()) res = append(res, addr) } addr := objectSDK.NewAddress() addr.SetObjectID(linking.GetID()) addr.SetContainerID(prm.addr.GetContainerID()) res = append(res, addr) } return res, nil } func WithOwnerID(v *owner.ID) Option { return func(c *cfg) { c.ownerID = v } } func WithKeyStorage(v *objutil.KeyStorage) Option { return func(c *cfg) { c.keyStorage = v } } func WithPutService(v *putsvc.Service) Option { return func(c *cfg) { c.putSvc = v } } func WitHeadService(v *headsvc.Service) Option { return func(c *cfg) { c.headSvc = v } } func WithLinkingHeader(v RelationHeader) Option { return func(c *cfg) { c.hdrLinking = v } }