ceremonyclient/go-libp2p/p2p/protocol/circuitv2/proto/voucher.go
2023-08-20 23:07:43 -05:00

70 lines
1.5 KiB
Go

package proto
import (
"time"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/libp2p/go-libp2p/core/record"
pbv2 "github.com/libp2p/go-libp2p/p2p/protocol/circuitv2/pb"
"google.golang.org/protobuf/proto"
)
const RecordDomain = "libp2p-relay-rsvp"
// TODO: register in multicodec table in https://github.com/multiformats/multicodec
var RecordCodec = []byte{0x03, 0x02}
func init() {
record.RegisterType(&ReservationVoucher{})
}
type ReservationVoucher struct {
// Relay is the ID of the peer providing relay service
Relay peer.ID
// Peer is the ID of the peer receiving relay service through Relay
Peer peer.ID
// Expiration is the expiration time of the reservation
Expiration time.Time
}
var _ record.Record = (*ReservationVoucher)(nil)
func (rv *ReservationVoucher) Domain() string {
return RecordDomain
}
func (rv *ReservationVoucher) Codec() []byte {
return RecordCodec
}
func (rv *ReservationVoucher) MarshalRecord() ([]byte, error) {
expiration := uint64(rv.Expiration.Unix())
return proto.Marshal(&pbv2.ReservationVoucher{
Relay: []byte(rv.Relay),
Peer: []byte(rv.Peer),
Expiration: &expiration,
})
}
func (rv *ReservationVoucher) UnmarshalRecord(blob []byte) error {
pbrv := pbv2.ReservationVoucher{}
err := proto.Unmarshal(blob, &pbrv)
if err != nil {
return err
}
rv.Relay, err = peer.IDFromBytes(pbrv.GetRelay())
if err != nil {
return err
}
rv.Peer, err = peer.IDFromBytes(pbrv.GetPeer())
if err != nil {
return err
}
rv.Expiration = time.Unix(int64(pbrv.GetExpiration()), 0)
return nil
}