package layer import ( "bytes" "context" "fmt" "strconv" "strings" "time" "github.com/nspcc-dev/neofs-s3-gw/api" "github.com/nspcc-dev/neofs-s3-gw/api/data" "github.com/nspcc-dev/neofs-s3-gw/api/errors" "github.com/nspcc-dev/neofs-sdk-go/container" cid "github.com/nspcc-dev/neofs-sdk-go/container/id" "github.com/nspcc-dev/neofs-sdk-go/eacl" "github.com/nspcc-dev/neofs-sdk-go/pool" "go.uber.org/zap" ) type ( // BucketACL extends BucketInfo by eacl.Table. BucketACL struct { Info *data.BucketInfo EACL *eacl.Table } ) const locationConstraintAttr = ".s3-location-constraint" func (n *layer) containerInfo(ctx context.Context, cid *cid.ID) (*data.BucketInfo, error) { var ( err error res *container.Container rid = api.GetRequestID(ctx) info = &data.BucketInfo{ CID: cid, Name: cid.String(), } ) res, err = n.pool.GetContainer(ctx, cid, n.CallOptions(ctx)...) if err != nil { n.log.Error("could not fetch container", zap.Stringer("cid", cid), zap.String("request_id", rid), zap.Error(err)) if strings.Contains(err.Error(), "container not found") { return nil, errors.GetAPIError(errors.ErrNoSuchBucket) } return nil, err } info.Owner = res.OwnerID() info.BasicACL = res.BasicACL() for _, attr := range res.Attributes() { switch key, val := attr.Key(), attr.Value(); key { case container.AttributeName: info.Name = val case container.AttributeTimestamp: unix, err := strconv.ParseInt(attr.Value(), 10, 64) if err != nil { n.log.Error("could not parse container creation time", zap.Stringer("cid", cid), zap.String("request_id", rid), zap.String("created_at", val), zap.Error(err)) continue } info.Created = time.Unix(unix, 0) case locationConstraintAttr: info.LocationConstraint = val } } if err := n.bucketCache.Put(info); err != nil { n.log.Warn("could not put bucket info into cache", zap.Stringer("cid", cid), zap.String("bucket_name", info.Name), zap.Error(err)) } return info, nil } func (n *layer) containerList(ctx context.Context) ([]*data.BucketInfo, error) { var ( err error own = n.Owner(ctx) res []*cid.ID rid = api.GetRequestID(ctx) ) res, err = n.pool.ListContainers(ctx, own, n.CallOptions(ctx)...) if err != nil { n.log.Error("could not fetch container", zap.String("request_id", rid), zap.Error(err)) return nil, err } list := make([]*data.BucketInfo, 0, len(res)) for _, cid := range res { info, err := n.containerInfo(ctx, cid) if err != nil { n.log.Error("could not fetch container info", zap.String("request_id", rid), zap.Error(err)) continue } list = append(list, info) } return list, nil } func (n *layer) createContainer(ctx context.Context, p *CreateBucketParams) (*cid.ID, error) { var err error bktInfo := &data.BucketInfo{ Name: p.Name, Owner: n.Owner(ctx), Created: time.Now(), BasicACL: p.ACL, LocationConstraint: p.LocationConstraint, } options := []container.Option{ container.WithPolicy(p.Policy), container.WithCustomBasicACL(p.ACL), container.WithAttribute(container.AttributeName, p.Name), container.WithAttribute(container.AttributeTimestamp, strconv.FormatInt(bktInfo.Created.Unix(), 10)), } if p.LocationConstraint != "" { options = append(options, container.WithAttribute(locationConstraintAttr, p.LocationConstraint)) } cnr := container.New(options...) container.SetNativeName(cnr, p.Name) cnr.SetSessionToken(p.SessionToken) cnr.SetOwnerID(bktInfo.Owner) if bktInfo.CID, err = n.pool.PutContainer(ctx, cnr); err != nil { return nil, err } if err = n.pool.WaitForContainerPresence(ctx, bktInfo.CID, pool.DefaultPollingParams()); err != nil { return nil, err } if err = n.setContainerEACLTable(ctx, bktInfo.CID, p.EACL); err != nil { return nil, err } if err = n.bucketCache.Put(bktInfo); err != nil { n.log.Warn("couldn't put bucket info into cache", zap.String("bucket name", bktInfo.Name), zap.Stringer("bucket cid", bktInfo.CID), zap.Error(err)) } return bktInfo.CID, nil } func (n *layer) setContainerEACLTable(ctx context.Context, cid *cid.ID, table *eacl.Table) error { table.SetCID(cid) if err := n.pool.SetEACL(ctx, table, n.SessionOpt(ctx)); err != nil { return err } return n.waitEACLPresence(ctx, cid, table, defaultWaitParams()) } func (n *layer) GetContainerEACL(ctx context.Context, cid *cid.ID) (*eacl.Table, error) { return n.pool.GetEACL(ctx, cid) } type waitParams struct { WaitTimeout time.Duration PollInterval time.Duration } func defaultWaitParams() *waitParams { return &waitParams{ WaitTimeout: 60 * time.Second, PollInterval: 3 * time.Second, } } func (n *layer) waitEACLPresence(ctx context.Context, cid *cid.ID, table *eacl.Table, params *waitParams) error { exp, err := table.Marshal() if err != nil { return fmt.Errorf("couldn't marshal eacl: %w", err) } wctx, cancel := context.WithTimeout(ctx, params.WaitTimeout) defer cancel() ticker := time.NewTimer(params.PollInterval) defer ticker.Stop() wdone := wctx.Done() done := ctx.Done() for { select { case <-done: return ctx.Err() case <-wdone: return wctx.Err() case <-ticker.C: eaclTable, err := n.pool.GetEACL(ctx, cid) if err == nil { got, err := eaclTable.Marshal() if err == nil && bytes.Equal(exp, got) { return nil } } ticker.Reset(params.PollInterval) } } } func (n *layer) deleteContainer(ctx context.Context, cid *cid.ID) error { return n.pool.DeleteContainer(ctx, cid, n.SessionOpt(ctx)) }