frostfs-node/pkg/morph/event/netmap/add_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

56 lines
1.3 KiB
Go

package netmap
import (
"fmt"
"github.com/nspcc-dev/neo-go/pkg/network/payload"
"github.com/nspcc-dev/neo-go/pkg/rpc/response/result/subscriptions"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
"github.com/nspcc-dev/neofs-node/pkg/morph/event"
)
type AddPeer struct {
node []byte
// For notary notifications only.
// Contains raw transactions of notary request.
notaryRequest *payload.P2PNotaryRequest
}
// MorphEvent implements Neo:Morph Event interface.
func (AddPeer) MorphEvent() {}
func (s AddPeer) Node() []byte {
return s.node
}
// NotaryRequest returns raw notary request if notification
// was received via notary service. Otherwise, returns nil.
func (s AddPeer) NotaryRequest() *payload.P2PNotaryRequest {
return s.notaryRequest
}
const expectedItemNumAddPeer = 1
func ParseAddPeer(e *subscriptions.NotificationEvent) (event.Event, error) {
var (
ev AddPeer
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 != expectedItemNumAddPeer {
return nil, event.WrongNumberOfParameters(expectedItemNumAddPeer, ln)
}
ev.node, err = client.BytesFromStackItem(params[0])
if err != nil {
return nil, fmt.Errorf("could not get raw nodeinfo: %w", err)
}
return ev, nil
}