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 }