@paragon-wallet/novo-hd-keyring/es/index.js

A simple standard interface for a seed phrase generated set of Novo accounts.

import _asyncToGenerator from "@babel/runtime/helpers/esm/asyncToGenerator";
import _inheritsLoose from "@babel/runtime/helpers/esm/inheritsLoose";

function _createForOfIteratorHelperLoose(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (it) return (it = it.call(o)).next.bind(it); if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; return function () { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

import _regeneratorRuntime from "@babel/runtime/regenerator";
import { SimpleKeyring } from "@paragon-wallet/novo-simple-keyring";
import * as novo from "@paragon-wallet/novocore-lib";
var hdPathString = "m/44'/0'/0'/0";
var type = "HD Key Tree";
export var HdKeyring = /*#__PURE__*/function (_SimpleKeyring) {
  _inheritsLoose(HdKeyring, _SimpleKeyring);

  /* PUBLIC METHODS */
  function HdKeyring(opts) {
    var _this;

    _this = _SimpleKeyring.call(this, null) || this;
    _this.type = type;
    _this.mnemonic = null;
    _this.hdPath = hdPathString;
    _this.root = null;
    _this.wallets = [];
    _this._index2wallet = {};
    _this.activeIndexes = [];
    _this.page = 0;
    _this.perPage = 5;

    _this.deserialize(opts);

    return _this;
  }

  var _proto = HdKeyring.prototype;

  _proto.serialize = /*#__PURE__*/function () {
    var _serialize = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime.mark(function _callee() {
      return _regeneratorRuntime.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              return _context.abrupt("return", {
                mnemonic: this.mnemonic,
                activeIndexes: this.activeIndexes,
                hdPath: this.hdPath
              });

            case 1:
            case "end":
              return _context.stop();
          }
        }
      }, _callee, this);
    }));

    function serialize() {
      return _serialize.apply(this, arguments);
    }

    return serialize;
  }();

  _proto.deserialize = /*#__PURE__*/function () {
    var _deserialize = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime.mark(function _callee2(_opts) {
      var opts;
      return _regeneratorRuntime.wrap(function _callee2$(_context2) {
        while (1) {
          switch (_context2.prev = _context2.next) {
            case 0:
              if (_opts === void 0) {
                _opts = {};
              }

              opts = _opts;
              this.wallets = [];
              this.mnemonic = null;
              this.root = null;
              this.hdPath = opts.hdPath || hdPathString;

              if (opts.mnemonic) {
                this.initFromMnemonic(opts.mnemonic);
              }

              if (opts.activeIndexes) {
                this.activeAccounts(opts.activeIndexes);
              }

            case 8:
            case "end":
              return _context2.stop();
          }
        }
      }, _callee2, this);
    }));

    function deserialize(_x) {
      return _deserialize.apply(this, arguments);
    }

    return deserialize;
  }();

  _proto.initFromMnemonic = function initFromMnemonic(mnemonic) {
    this.mnemonic = mnemonic;
    this._index2wallet = {};
    this.hdWallet = novo.Mnemonic.fromString(mnemonic);
    this.root = this.hdWallet.toHDPrivateKey(this.phrase, this.network).deriveChild(this.hdPath);
  };

  _proto.addAccounts = function addAccounts(numberOfAccounts) {
    var _this2 = this;

    if (numberOfAccounts === void 0) {
      numberOfAccounts = 1;
    }

    if (!this.root) {
      this.initFromMnemonic(novo.Mnemonic.fromRandom().toString());
    }

    var count = numberOfAccounts;
    var currentIdx = 0;
    var newWallets = [];

    while (count) {
      var _this$_addressFromInd = this._addressFromIndex(currentIdx),
          wallet = _this$_addressFromInd[1];

      if (this.wallets.includes(wallet)) {
        currentIdx++;
      } else {
        this.wallets.push(wallet);
        newWallets.push(wallet);
        this.activeIndexes.push(currentIdx);
        count--;
      }
    }

    var hexWallets = newWallets.map(function (w) {
      return w.toAddress(_this2.network).toString();
    });
    return Promise.resolve(hexWallets);
  };

  _proto.activeAccounts = function activeAccounts(indexes) {
    var accounts = [];

    for (var _iterator = _createForOfIteratorHelperLoose(indexes), _step; !(_step = _iterator()).done;) {
      var index = _step.value;

      var _this$_addressFromInd2 = this._addressFromIndex(index),
          address = _this$_addressFromInd2[0],
          wallet = _this$_addressFromInd2[1];

      this.wallets.push(wallet);
      this.activeIndexes.push(index);
      accounts.push(address);
    }

    return accounts;
  };

  _proto.getFirstPage = function getFirstPage() {
    this.page = 0;
    return this.__getPage(1);
  };

  _proto.getNextPage = function getNextPage() {
    return this.__getPage(1);
  };

  _proto.getPreviousPage = function getPreviousPage() {
    return this.__getPage(-1);
  };

  _proto.getAddresses = function getAddresses(start, end) {
    var from = start;
    var to = end;
    var accounts = [];

    for (var i = from; i < to; i++) {
      var _this$_addressFromInd3 = this._addressFromIndex(i),
          address = _this$_addressFromInd3[0];

      accounts.push({
        address: address,
        index: i + 1
      });
    }

    return accounts;
  };

  _proto.__getPage = /*#__PURE__*/function () {
    var _getPage = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime.mark(function _callee3(increment) {
      var from, to, accounts, i, _this$_addressFromInd4, address;

      return _regeneratorRuntime.wrap(function _callee3$(_context3) {
        while (1) {
          switch (_context3.prev = _context3.next) {
            case 0:
              this.page += increment;

              if (!this.page || this.page <= 0) {
                this.page = 1;
              }

              from = (this.page - 1) * this.perPage;
              to = from + this.perPage;
              accounts = [];

              for (i = from; i < to; i++) {
                _this$_addressFromInd4 = this._addressFromIndex(i), address = _this$_addressFromInd4[0];
                accounts.push({
                  address: address,
                  index: i + 1
                });
              }

              return _context3.abrupt("return", accounts);

            case 7:
            case "end":
              return _context3.stop();
          }
        }
      }, _callee3, this);
    }));

    function __getPage(_x2) {
      return _getPage.apply(this, arguments);
    }

    return __getPage;
  }();

  _proto.getAccounts = /*#__PURE__*/function () {
    var _getAccounts = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime.mark(function _callee4() {
      var _this3 = this;

      return _regeneratorRuntime.wrap(function _callee4$(_context4) {
        while (1) {
          switch (_context4.prev = _context4.next) {
            case 0:
              return _context4.abrupt("return", this.wallets.map(function (w) {
                return w.toAddress(_this3.network).toString();
              }));

            case 1:
            case "end":
              return _context4.stop();
          }
        }
      }, _callee4, this);
    }));

    function getAccounts() {
      return _getAccounts.apply(this, arguments);
    }

    return getAccounts;
  }();

  _proto.getIndexByAddress = function getIndexByAddress(address) {
    for (var key in this._index2wallet) {
      if (this._index2wallet[key][0] === address) {
        return Number(key);
      }
    }

    return null;
  };

  _proto._addressFromIndex = function _addressFromIndex(i) {
    if (!this._index2wallet[i]) {
      var child = this.root.deriveChild(i);
      var privateKey = child.privateKey;
      var address = privateKey.toAddress(this.network).toString();
      this._index2wallet[i] = [address, privateKey];
    }

    return this._index2wallet[i];
  };

  return HdKeyring;
}(SimpleKeyring);
HdKeyring.type = type;