frostfs-node/pkg/morph/event/netmap/update_peer.go
Pavel Karpy c167ae26f9 [#971] morph/event: Change notification parser's signature
Parsers should have original notification
structure to be able to construct internal
event structure that contains necessary
for unique nonce calculation information.
So notification parsers take raw notification
structure instead of slice of stack items.

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2021-11-19 09:58:03 +03:00

81 lines
2.1 KiB
Go

package netmap
import (
"crypto/elliptic"
"fmt"
"github.com/nspcc-dev/neo-go/pkg/rpc/response/result/subscriptions"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/network/payload"
"github.com/nspcc-dev/neofs-api-go/pkg/netmap"
v2netmap "github.com/nspcc-dev/neofs-api-go/v2/netmap"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
"github.com/nspcc-dev/neofs-node/pkg/morph/event"
"github.com/nspcc-dev/neofs-sdk-go/netmap"
)
type UpdatePeer struct {
publicKey *keys.PublicKey
status netmap.NodeState
// For notary notifications only.
// Contains raw transactions of notary request.
notaryRequest *payload.P2PNotaryRequest
}
// MorphEvent implements Neo:Morph Event interface.
func (UpdatePeer) MorphEvent() {}
func (s UpdatePeer) Status() netmap.NodeState {
return s.status
}
func (s UpdatePeer) PublicKey() *keys.PublicKey {
return s.publicKey
}
// NotaryRequest returns raw notary request if notification
// was received via notary service. Otherwise, returns nil.
func (s UpdatePeer) NotaryRequest() *payload.P2PNotaryRequest {
return s.notaryRequest
}
const expectedItemNumUpdatePeer = 2
func ParseUpdatePeer(e *subscriptions.NotificationEvent) (event.Event, error) {
var (
ev UpdatePeer
err error
)
params, err := event.ParseStackArray(e)
if err != nil {
return nil, fmt.Errorf("could not parse stack items from notify event: %w", err)
}
if ln := len(params); ln != expectedItemNumUpdatePeer {
return nil, event.WrongNumberOfParameters(expectedItemNumUpdatePeer, ln)
}
// parse public key
key, err := client.BytesFromStackItem(params[1])
if err != nil {
return nil, fmt.Errorf("could not get public key: %w", err)
}
ev.publicKey, err = keys.NewPublicKeyFromBytes(key, elliptic.P256())
if err != nil {
return nil, fmt.Errorf("could not parse public key: %w", err)
}
// parse node status
st, err := client.IntFromStackItem(params[0])
if err != nil {
return nil, fmt.Errorf("could not get node status: %w", err)
}
ev.status = netmap.NodeStateFromV2(v2netmap.NodeState(st))
return ev, nil
}