Beispiel #1
0
// creates and signs a record for the given key/value pair
func makeRecord(ps peer.Peerstore, p peer.ID, k key.Key, v []byte) (*pb.Record, error) {
	blob := bytes.Join([][]byte{[]byte(k), v, []byte(p)}, []byte{})
	sig, err := ps.PrivKey(p).Sign(blob)
	if err != nil {
		return nil, err
	}
	return &pb.Record{
		Key:       proto.String(string(k)),
		Value:     v,
		Author:    proto.String(string(p)),
		Signature: sig,
	}, nil
}
Beispiel #2
0
func storeProvidersToPeerstore(ps peer.Peerstore, p peer.ID, providers []*dhtpb.Message_Peer) {
	for _, provider := range providers {
		providerID := peer.ID(provider.GetId())
		if providerID != p {
			log.Errorf("provider message came from third-party %s", p)
			continue
		}
		for _, maddr := range provider.Addresses() {
			// as a router, we want to store addresses for peers who have provided
			ps.AddAddr(p, maddr, peer.AddressTTL)
		}
	}
}
Beispiel #3
0
func printPeer(ps peer.Peerstore, p peer.ID) (interface{}, error) {
	if p == "" {
		return nil, errors.New("Attempted to print nil peer!")
	}

	info := new(IdOutput)
	info.ID = p.Pretty()

	if pk := ps.PubKey(p); pk != nil {
		pkb, err := ic.MarshalPublicKey(pk)
		if err != nil {
			return nil, err
		}
		info.PublicKey = base64.StdEncoding.EncodeToString(pkb)
	}

	for _, a := range ps.Addrs(p) {
		info.Addresses = append(info.Addresses, a.String())
	}

	if v, err := ps.Get(p, "ProtocolVersion"); err == nil {
		if vs, ok := v.(string); ok {
			info.ProtocolVersion = vs
		}
	}
	if v, err := ps.Get(p, "AgentVersion"); err == nil {
		if vs, ok := v.(string); ok {
			info.AgentVersion = vs
		}
	}

	return info, nil
}
Beispiel #4
0
func verify(ps peer.Peerstore, r *dhtpb.Record) error {
	v := make(record.Validator)
	v["pk"] = record.PublicKeyValidator
	p := peer.ID(r.GetAuthor())
	pk := ps.PubKey(p)
	if pk == nil {
		return fmt.Errorf("do not have public key for %s", p)
	}
	if err := record.CheckRecordSig(r, pk); err != nil {
		return err
	}
	if err := v.VerifyRecord(r); err != nil {
		return err
	}
	return nil
}