frostfs-node/pkg/morph/event/netmap/update_peer_notary.go

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package netmap
import (
"crypto/elliptic"
"errors"
"fmt"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/event"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
)
var errNilPubKey = errors.New("could not parse public key: public key is nil")
func (s *UpdatePeer) setPublicKey(v []byte) (err error) {
if v == nil {
return errNilPubKey
}
s.publicKey, err = keys.NewPublicKeyFromBytes(v, elliptic.P256())
if err != nil {
return fmt.Errorf("could not parse public key: %w", err)
}
return
}
const (
// UpdateStateNotaryEvent is method name for netmap state updating
// operations in `Netmap` contract. Is used as identificator for
// notary delete container requests.
UpdateStateNotaryEvent = "updateState"
)
// ParseUpdatePeerNotary from NotaryEvent into netmap event structure.
func ParseUpdatePeerNotary(ne event.NotaryEvent) (event.Event, error) {
var (
ev UpdatePeer
err error
currCode opcode.Opcode
)
fieldNum := 0
for _, op := range ne.Params() {
currCode = op.Code()
switch {
case fieldNum == 0 && opcode.PUSHDATA1 <= currCode && currCode <= opcode.PUSHDATA4:
err = ev.setPublicKey(op.Param())
if err != nil {
return nil, err
}
fieldNum++
case fieldNum == 1:
state, err := event.IntFromOpcode(op)
if err != nil {
return nil, err
}
err = ev.decodeState(state)
if err != nil {
return nil, err
}
fieldNum++
case fieldNum == expectedItemNumUpdatePeer:
return nil, event.UnexpectedArgNumErr(UpdateStateNotaryEvent)
default:
return nil, event.UnexpectedOpcode(UpdateStateNotaryEvent, currCode)
}
}
ev.notaryRequest = ne.Raw()
return ev, nil
}