[#812] morph/event: Expand reputation put event with notary notification

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
This commit is contained in:
Alex Vanin 2021-09-08 18:16:48 +03:00 committed by Alex Vanin
parent 90823a7d05
commit e2c2e27c60
2 changed files with 87 additions and 0 deletions

View file

@ -3,6 +3,7 @@ package reputation
import (
"fmt"
"github.com/nspcc-dev/neo-go/pkg/network/payload"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neofs-api-go/pkg/reputation"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
@ -15,6 +16,10 @@ type Put struct {
epoch uint64
peerID reputation.PeerID
value reputation.GlobalTrust
// For notary notifications only.
// Contains raw transactions of notary request.
notaryRequest *payload.P2PNotaryRequest
}
const peerIDLength = 33 // compressed public key
@ -37,6 +42,12 @@ func (p Put) Value() reputation.GlobalTrust {
return p.value
}
// NotaryRequest returns raw notary request if notification
// was received via notary service. Otherwise, returns nil.
func (p Put) NotaryRequest() *payload.P2PNotaryRequest {
return p.notaryRequest
}
// ParsePut from notification into reputation event structure.
func ParsePut(prms []stackitem.Item) (event.Event, error) {
var (

View file

@ -0,0 +1,76 @@
package reputation
import (
"fmt"
"github.com/nspcc-dev/neofs-node/pkg/morph/event"
)
func (p *Put) setEpoch(v uint64) {
p.epoch = v
}
func (p *Put) setPeerID(v []byte) error {
if ln := len(v); ln != peerIDLength {
return fmt.Errorf("peer ID is %d byte long, expected %d", ln, peerIDLength)
}
var publicKey [33]byte
copy(publicKey[:], v)
p.peerID.SetPublicKey(publicKey)
return nil
}
func (p *Put) setValue(v []byte) error {
return p.value.Unmarshal(v)
}
var fieldSetters = []func(*Put, []byte) error{
// order on stack is reversed
(*Put).setValue,
(*Put).setPeerID,
}
const (
// PutNotaryEvent is method name for reputation put operations
// in `Reputation` contract. Is used as identifier for notary
// put reputation requests.
PutNotaryEvent = "put"
)
// ParsePutNotary from NotaryEvent into reputation event structure.
func ParsePutNotary(ne event.NotaryEvent) (event.Event, error) {
var ev Put
fieldNum := 0
for _, op := range ne.Params() {
switch fieldNum {
case 0, 1:
data, err := event.BytesFromOpcode(op)
if err != nil {
return nil, err
}
err = fieldSetters[fieldNum](&ev, data)
if err != nil {
return nil, fmt.Errorf("can't parse field num %d: %w", fieldNum, err)
}
case 2:
n, err := event.IntFromOpcode(op)
if err != nil {
return nil, err
}
ev.setEpoch(uint64(n))
default:
return nil, event.UnexpectedArgNumErr(PutNotaryEvent)
}
fieldNum++
}
ev.notaryRequest = ne.Raw()
return ev, nil
}