frostfs-node/pkg/morph/event/neofs/unbind.go

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package neofs
import (
"crypto/elliptic"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"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"
"github.com/pkg/errors"
)
type Unbind struct {
user util.Uint160
keys []*keys.PublicKey
}
// MorphEvent implements Neo:Morph Event interface.
func (Unbind) MorphEvent() {}
func (u Unbind) Keys() []*keys.PublicKey { return u.keys }
func (u Unbind) User() util.Uint160 { return u.user }
func ParseUnbind(params []stackitem.Item) (event.Event, error) {
var (
ev Unbind
err error
)
if ln := len(params); ln != 2 {
return nil, event.WrongNumberOfParameters(2, ln)
}
// parse user
user, err := client.BytesFromStackItem(params[0])
if err != nil {
return nil, errors.Wrap(err, "could not get bind user")
}
ev.user, err = util.Uint160DecodeBytesBE(user)
if err != nil {
return nil, errors.Wrap(err, "could not convert unbind user to uint160")
}
// parse keys
unbindKeys, err := client.ArrayFromStackItem(params[1])
if err != nil {
return nil, errors.Wrap(err, "could not get unbind keys")
}
ev.keys = make([]*keys.PublicKey, 0, len(unbindKeys))
for i := range unbindKeys {
rawKey, err := client.BytesFromStackItem(unbindKeys[i])
if err != nil {
return nil, errors.Wrap(err, "could not get unbind public key")
}
key, err := keys.NewPublicKeyFromBytes(rawKey, elliptic.P256())
if err != nil {
return nil, errors.Wrap(err, "could not parse unbind public key")
}
ev.keys = append(ev.keys, key)
}
return ev, nil
}