Ejemplo n.º 1
0
// MakeAddress converts an account specified directly as a hex encoded string or
// a key index in the key store to an internal account representation.
func MakeAddress(accman *accounts.Manager, account string) (accounts.Account, error) {
	// If the specified account is a valid address, return it
	if common.IsHexAddress(account) {
		return accounts.Account{Address: common.HexToAddress(account)}, nil
	}
	// Otherwise try to interpret the account as a keystore index
	index, err := strconv.Atoi(account)
	if err != nil {
		return accounts.Account{}, fmt.Errorf("invalid account address or index %q", account)
	}
	return accman.AccountByIndex(index)
}
Ejemplo n.º 2
0
// MakeAddress converts an account specified directly as a hex encoded string or
// a key index in the key store to an internal account representation.
func MakeAddress(accman *accounts.Manager, account string) (a common.Address, err error) {
	// If the specified account is a valid address, return it
	if common.IsHexAddress(account) {
		return common.HexToAddress(account), nil
	}
	// Otherwise try to interpret the account as a keystore index
	index, err := strconv.Atoi(account)
	if err != nil {
		return a, fmt.Errorf("invalid account address or index %q", account)
	}
	hex, err := accman.AddressByIndex(index)
	if err != nil {
		return a, fmt.Errorf("can't get account #%d (%v)", index, err)
	}
	return common.HexToAddress(hex), nil
}
Ejemplo n.º 3
0
// Transactions handles POST requests against an account endpoint to initiate
// outbound value transfers to other accounts.
func (a *api) Transactions(w http.ResponseWriter, r *http.Request) {
	params := mux.Vars(r)

	switch {
	case r.Method == "POST":
		// Parse and validate the transfer parameters
		sender := common.HexToAddress(params["address"])

		recipient := r.FormValue("recipient")
		if !common.IsHexAddress(recipient) {
			log15.Warn("Invalid recipient", "recipient", recipient)
			http.Error(w, fmt.Sprintf("Invalid recipient: %s", recipient), http.StatusBadRequest)
			return
		}
		to := common.HexToAddress(recipient)

		amount := r.FormValue("amount")
		value, ok := new(big.Int).SetString(amount, 10)
		if !ok || value.Cmp(big.NewInt(0)) <= 0 {
			log15.Warn("Invalid amount", "amount", amount)
			http.Error(w, fmt.Sprintf("Invalid amount: %s", amount), http.StatusBadRequest)
			return
		}
		// Execute the value transfer and return an error or the transaction id
		id, err := a.eapis.Transfer(sender, to, value)
		if err != nil {
			log15.Error("Failed to execute transfer", "error", err)
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}
		w.Write([]byte(fmt.Sprintf("0x%x", id)))

	default:
		http.Error(w, "Unsupported method: "+r.Method, http.StatusMethodNotAllowed)
	}
}
Ejemplo n.º 4
0
// Transact forms a transaction from the given arguments and submits it to the
// transactio pool for execution.
func (be *registryAPIBackend) Transact(fromStr, toStr, nonceStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, error) {
	if len(toStr) > 0 && toStr != "0x" && !common.IsHexAddress(toStr) {
		return "", errors.New("invalid address")
	}

	var (
		from             = common.HexToAddress(fromStr)
		to               = common.HexToAddress(toStr)
		value            = common.Big(valueStr)
		gas              *big.Int
		price            *big.Int
		data             []byte
		contractCreation bool
	)

	if len(gasStr) == 0 {
		gas = big.NewInt(90000)
	} else {
		gas = common.Big(gasStr)
	}

	if len(gasPriceStr) == 0 {
		price = big.NewInt(10000000000000)
	} else {
		price = common.Big(gasPriceStr)
	}

	data = common.FromHex(codeStr)
	if len(toStr) == 0 {
		contractCreation = true
	}

	nonce := be.txPool.State().GetNonce(from)
	if len(nonceStr) != 0 {
		nonce = common.Big(nonceStr).Uint64()
	}

	var tx *types.Transaction
	if contractCreation {
		tx = types.NewContractCreation(nonce, value, gas, price, data)
	} else {
		tx = types.NewTransaction(nonce, to, value, gas, price, data)
	}

	acc := accounts.Account{from}
	signature, err := be.am.Sign(acc, tx.SigHash().Bytes())
	if err != nil {
		return "", err
	}
	signedTx, err := tx.WithSignature(signature)
	if err != nil {
		return "", err
	}

	be.txPool.SetLocal(signedTx)
	if err := be.txPool.Add(signedTx); err != nil {
		return "", nil
	}

	if contractCreation {
		addr := crypto.CreateAddress(from, nonce)
		glog.V(logger.Info).Infof("Tx(%s) created: %s\n", signedTx.Hash().Hex(), addr.Hex())
	} else {
		glog.V(logger.Info).Infof("Tx(%s) to: %s\n", signedTx.Hash().Hex(), tx.To().Hex())
	}

	return signedTx.Hash().Hex(), nil
}