package neofs import ( "fmt" "github.com/nspcc-dev/neo-go/pkg/rpc/response/result/subscriptions" "github.com/nspcc-dev/neo-go/pkg/util" "github.com/nspcc-dev/neo-go/pkg/vm/stackitem" "github.com/nspcc-dev/neofs-node/pkg/morph/client" "github.com/nspcc-dev/neofs-node/pkg/morph/event" ) type Bind struct { bindCommon } type bindCommon struct { user []byte keys [][]byte // txHash is used in notary environmental // for calculating unique but same for // all notification receivers values. txHash util.Uint256 } // TxHash returns hash of the TX with new epoch // notification. func (b bindCommon) TxHash() util.Uint256 { return b.txHash } // MorphEvent implements Neo:Morph Event interface. func (bindCommon) MorphEvent() {} func (b bindCommon) Keys() [][]byte { return b.keys } func (b bindCommon) User() []byte { return b.user } func ParseBind(e *subscriptions.NotificationEvent) (event.Event, error) { var ( ev Bind err error ) params, err := event.ParseStackArray(e) if err != nil { return nil, fmt.Errorf("could not parse stack items from notify event: %w", err) } err = parseBind(&ev.bindCommon, params) if err != nil { return nil, err } ev.txHash = e.Container return ev, nil } func parseBind(dst *bindCommon, params []stackitem.Item) error { if ln := len(params); ln != 2 { return event.WrongNumberOfParameters(2, ln) } var err error // parse user dst.user, err = client.BytesFromStackItem(params[0]) if err != nil { return fmt.Errorf("could not get bind user: %w", err) } // parse keys bindKeys, err := client.ArrayFromStackItem(params[1]) if err != nil { return fmt.Errorf("could not get bind keys: %w", err) } dst.keys = make([][]byte, 0, len(bindKeys)) for i := range bindKeys { rawKey, err := client.BytesFromStackItem(bindKeys[i]) if err != nil { return fmt.Errorf("could not get bind public key: %w", err) } dst.keys = append(dst.keys, rawKey) } return nil }