@coolwallet/ton/lib/utils/checkParams.js

CoolWallet TON SDK

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.checkTransferTokenTransaction = checkTransferTokenTransaction;
exports.checkTransferTransaction = checkTransferTransaction;
var _bignumber = _interopRequireDefault(require("bignumber.js"));
var _tonweb = _interopRequireDefault(require("tonweb"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
// The Pro card cannot display 9-digit integer numbers, so the transaction amount is limited
function checkAmountCanDisplayOnProCard(transferAmount, decimals) {
  if (new _bignumber["default"](transferAmount).shiftedBy(-decimals).isGreaterThanOrEqualTo('100000000')) throw new Error("checkParams: pro card cannot display 9 digits");
}

// The current script does not support writing 0.
function checkAmountNotZero(amount) {
  if (new _bignumber["default"](amount).isZero()) throw new Error("checkParams: not support amount 0");
}

// Check address.
function checkAddressIsValid(address) {
  if (!_tonweb["default"].Address.isValid(address)) throw new Error("checkParams: address is invalid. address=".concat(address));
  if (new _tonweb["default"].Address(address).wc !== 0) throw new Error("checkParams: we did not support other chain. address=".concat(address));
}

// The script reserves 64 bytes for memo.
function checkMemoLength() {
  var memo = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
  if (new TextEncoder().encode(memo).byteLength > 64) throw new Error("checkParams: memo too long");
}
function checkTransferTransaction(transaction) {
  var amount = transaction.amount,
    toAddress = transaction.toAddress,
    payload = transaction.payload;
  var TON_DECIMALS = 9;
  checkAmountCanDisplayOnProCard(amount, TON_DECIMALS);
  checkAmountNotZero(amount);
  checkAddressIsValid(toAddress);
  checkMemoLength(payload);
}
function checkTransferTokenTransaction(transaction) {
  var amount = transaction.amount,
    fromTokenAccount = transaction.toAddress,
    payload = transaction.payload;
  var jettonAmount = payload.jettonAmount,
    toAddress = payload.toAddress,
    forwardAmount = payload.forwardAmount,
    forwardPayload = payload.forwardPayload,
    responseAddress = payload.responseAddress;
  checkAmountNotZero(amount);
  checkAmountNotZero(jettonAmount);
  checkAmountNotZero(forwardAmount);
  checkAddressIsValid(fromTokenAccount);
  checkAddressIsValid(toAddress);
  checkAddressIsValid(responseAddress);
  checkMemoLength(forwardPayload);
}
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