@coolwallet/xlm/lib/utils/transactionUtil.js

Coolwallet Stella sdk

"use strict";

function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.encodeCheck = encodeCheck;
exports.encodeEd25519PublicKey = encodeEd25519PublicKey;
exports.pubKeyToAddress = pubKeyToAddress;
var _crc = _interopRequireDefault(require("crc"));
var params = _interopRequireWildcard(require("../config/params"));
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { "default": e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n["default"] = e, t && t.set(e, n), n; }
function _interopRequireDefault(e) { return e && e.__esModule ? e : { "default": e }; }
/* eslint-disable no-bitwise */

var base32 = require('base32.js');
function calculateChecksum(payload) {
  // This code calculates CRC16-XModem checksum of payload
  // and returns it as Buffer in little-endian order.
  var checksum = Buffer.allocUnsafe(2);
  checksum.writeUInt16LE(_crc["default"].crc16xmodem(payload), 0);
  return checksum;
}
function encodeCheck(versionByteName, data) {
  var versionByte = params.VERSION_BYTES[versionByteName];
  var versionBuffer = Buffer.from([versionByte]);
  var payload = Buffer.concat([versionBuffer, data]);
  var checksum = calculateChecksum(payload);
  var unencoded = Buffer.concat([payload, checksum]);
  return base32.encode(unencoded);
}
function encodeEd25519PublicKey(data) {
  return encodeCheck('ed25519PublicKey', data);
}
function pubKeyToAddress(publicKey) {
  var pubKey = publicKey.length === 66 ? publicKey.slice(2) : publicKey;
  var pubKeyBuf = Buffer.from(pubKey, 'hex');
  return encodeEd25519PublicKey(pubKeyBuf);
}
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QixFQUFFRSxJQUFJLENBQUM7QUFDOUM7QUFFTyxTQUFTUyxlQUFlQSxDQUFDQyxTQUFpQixFQUFVO0VBQ3pELElBQU1DLE1BQU0sR0FBR0QsU0FBUyxDQUFDRSxNQUFNLEtBQUssRUFBRSxHQUFHRixTQUFTLENBQUNHLEtBQUssQ0FBQyxDQUFDLENBQUMsR0FBR0gsU0FBUztFQUV2RSxJQUFNSSxTQUFTLEdBQUdyQixNQUFNLENBQUNXLElBQUksQ0FBQ08sTUFBTSxFQUFFLEtBQUssQ0FBQztFQUM1QyxPQUFPSCxzQkFBc0IsQ0FBQ00sU0FBUyxDQUFDO0FBQzFDIiwiaWdub3JlTGlzdCI6W119