frostfs-node/pkg/morph/event/neofs/unbind.go
Evgenii Stratonikov 71b87155ef [#521] *: use stdlib errors package
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-05-19 16:42:54 +03:00

69 lines
1.6 KiB
Go

package neofs
import (
"crypto/elliptic"
"fmt"
"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"
)
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, fmt.Errorf("could not get bind user: %w", err)
}
ev.user, err = util.Uint160DecodeBytesBE(user)
if err != nil {
return nil, fmt.Errorf("could not convert unbind user to uint160: %w", err)
}
// parse keys
unbindKeys, err := client.ArrayFromStackItem(params[1])
if err != nil {
return nil, fmt.Errorf("could not get unbind keys: %w", err)
}
ev.keys = make([]*keys.PublicKey, 0, len(unbindKeys))
for i := range unbindKeys {
rawKey, err := client.BytesFromStackItem(unbindKeys[i])
if err != nil {
return nil, fmt.Errorf("could not get unbind public key: %w", err)
}
key, err := keys.NewPublicKeyFromBytes(rawKey, elliptic.P256())
if err != nil {
return nil, fmt.Errorf("could not parse unbind public key: %w", err)
}
ev.keys = append(ev.keys, key)
}
return ev, nil
}