package layer import ( "bytes" "context" "encoding/xml" "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" "go.uber.org/zap" ) type PutBucketNotificationConfigurationParams struct { RequestInfo *api.ReqInfo BktInfo *data.BucketInfo Configuration *data.NotificationConfiguration } func (n *layer) PutBucketNotificationConfiguration(ctx context.Context, p *PutBucketNotificationConfigurationParams) error { confXML, err := xml.Marshal(p.Configuration) if err != nil { return err } s := &PutSystemObjectParams{ BktInfo: p.BktInfo, ObjName: p.BktInfo.NotificationConfigurationObjectName(), Metadata: map[string]string{}, Reader: bytes.NewReader(confXML), } obj, err := n.putSystemObjectIntoNeoFS(ctx, s) if err != nil { return err } if obj.Size == 0 && !p.Configuration.IsEmpty() { return errors.GetAPIError(errors.ErrInternalError) } if err = n.systemCache.PutNotificationConfiguration(systemObjectKey(p.BktInfo, s.ObjName), p.Configuration); err != nil { n.log.Error("couldn't cache system object", zap.Error(err)) } return nil } func (n *layer) GetBucketNotificationConfiguration(ctx context.Context, bktInfo *data.BucketInfo) (*data.NotificationConfiguration, error) { conf, err := n.getNotificationConf(ctx, bktInfo, bktInfo.NotificationConfigurationObjectName()) if err != nil { if errors.IsS3Error(err, errors.ErrNoSuchKey) { return &data.NotificationConfiguration{}, nil } return nil, err } return conf, nil } func (n *layer) getNotificationConf(ctx context.Context, bkt *data.BucketInfo, sysName string) (*data.NotificationConfiguration, error) { if conf := n.systemCache.GetNotificationConfiguration(systemObjectKey(bkt, sysName)); conf != nil { return conf, nil } obj, err := n.getSystemObjectFromNeoFS(ctx, bkt, sysName) if err != nil { return nil, err } conf := &data.NotificationConfiguration{} if err = xml.Unmarshal(obj.Payload(), &conf); err != nil { return nil, err } if err = n.systemCache.PutNotificationConfiguration(systemObjectKey(bkt, sysName), conf); err != nil { objID, _ := obj.ID() n.log.Warn("couldn't put system meta to objects cache", zap.Stringer("object id", &objID), zap.Stringer("bucket id", bkt.CID), zap.Error(err)) } return conf, nil }