Example #1
0
// New returns a new fully initialized instance of BtcWallet given a valid
// configuration struct.
func New(cfg *Config) (*BtcWallet, error) {
	// Ensure the wallet exists or create it when the create flag is set.
	netDir := networkDir(cfg.DataDir, cfg.NetParams)

	var pubPass []byte
	if cfg.PublicPass == nil {
		pubPass = defaultPubPassphrase
	} else {
		pubPass = cfg.PublicPass
	}

	loader := base.NewLoader(cfg.NetParams, netDir)
	walletExists, err := loader.WalletExists()
	if err != nil {
		return nil, err
	}

	var wallet *base.Wallet
	if !walletExists {
		// Wallet has never been created, perform initial set up.
		wallet, err = loader.CreateNewWallet(pubPass, cfg.PrivatePass,
			cfg.HdSeed)
		if err != nil {
			return nil, err
		}
	} else {
		// Wallet has been created and been initialized at this point, open it
		// along with all the required DB namepsaces, and the DB itself.
		wallet, err = loader.OpenExistingWallet(pubPass, false)
		if err != nil {
			return nil, err
		}
	}

	if err := wallet.Manager.Unlock(cfg.PrivatePass); err != nil {
		return nil, err
	}

	// Create a special websockets rpc client for btcd which will be used
	// by the wallet for notifications, calls, etc.
	rpcc, err := chain.NewRPCClient(cfg.NetParams, cfg.RpcHost,
		cfg.RpcUser, cfg.RpcPass, cfg.CACert, false, 20)
	if err != nil {
		return nil, err
	}

	db := wallet.Database()
	walletNamespace, err := db.Namespace(lnNamespace)
	if err != nil {
		return nil, err
	}

	return &BtcWallet{
		wallet:      wallet,
		rpc:         rpcc,
		lnNamespace: walletNamespace,
		netParams:   cfg.NetParams,
		utxoCache:   make(map[wire.OutPoint]*wire.TxOut),
	}, nil
}
Example #2
0
// startChainRPC opens a RPC client connection to a btcd server for blockchain
// services.  This function uses the RPC options from the global config and
// there is no recovery in case the server is not available or if there is an
// authentication error.  Instead, all requests to the client will simply error.
func startChainRPC(certs []byte) (*chain.RPCClient, error) {
	log.Infof("Attempting RPC client connection to %v", cfg.RPCConnect)
	rpcc, err := chain.NewRPCClient(activeNet.Params, cfg.RPCConnect,
		cfg.BtcdUsername, cfg.BtcdPassword, certs, cfg.DisableClientTLS, 0)
	if err != nil {
		return nil, err
	}
	err = rpcc.Start()
	return rpcc, err
}
Example #3
0
func (s *loaderServer) StartConsensusRpc(ctx context.Context, req *pb.StartConsensusRpcRequest) (
	*pb.StartConsensusRpcResponse, error) {

	defer zero.Bytes(req.Password)

	defer s.mu.Unlock()
	s.mu.Lock()

	if s.rpcClient != nil {
		return nil, grpc.Errorf(codes.FailedPrecondition, "RPC client already created")
	}

	networkAddress, err := cfgutil.NormalizeAddress(req.NetworkAddress,
		s.activeNet.RPCClientPort)
	if err != nil {
		return nil, grpc.Errorf(codes.InvalidArgument,
			"Network address is ill-formed: %v", err)
	}

	// Error if the wallet is already syncing with the network.
	wallet, walletLoaded := s.loader.LoadedWallet()
	if walletLoaded && wallet.SynchronizingToNetwork() {
		return nil, grpc.Errorf(codes.FailedPrecondition,
			"wallet is loaded and already synchronizing")
	}

	rpcClient, err := chain.NewRPCClient(s.activeNet.Params, networkAddress, req.Username,
		string(req.Password), req.Certificate, len(req.Certificate) == 0, 1)
	if err != nil {
		return nil, translateError(err)
	}

	err = rpcClient.Start()
	if err != nil {
		if err == btcrpcclient.ErrInvalidAuth {
			return nil, grpc.Errorf(codes.InvalidArgument,
				"Invalid RPC credentials: %v", err)
		}
		return nil, grpc.Errorf(codes.NotFound,
			"Connection to RPC server failed: %v", err)
	}

	s.rpcClient = rpcClient

	if walletLoaded {
		wallet.SynchronizeRPC(rpcClient)
	}

	return &pb.StartConsensusRpcResponse{}, nil
}