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Текущая директория: /opt/BitGoJS/modules/sdk-core/dist/src/bitgo/utils
Просмотр файла: util.js
"use strict";
/**
* @prettier
* @hidden
*/
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.Util = exports.RequestTracer = void 0;
/**
*/
const utxo_lib_1 = require("@bitgo/utxo-lib");
const Big = __importStar(require("big.js"));
const _ = __importStar(require("lodash"));
const crypto_1 = require("crypto");
const errors_1 = require("../errors");
const debug = require('debug')('bitgo:v2:util');
let ethUtil;
let isEthAvailable = false;
const ethImport = 'ethereumjs-util';
Promise.resolve().then(() => __importStar(require('ethereumjs-util'))).then((eth) => {
ethUtil = eth;
isEthAvailable = true;
})
.catch((e) => {
// ethereum currently not supported
debug('unable to load ethereumjs-util:');
debug(e.stack);
});
/**
* Create a request tracer for tracing workflows which involve multiple round trips to the server
*/
class RequestTracer {
constructor() {
this._seq = 0;
this._seed = (0, crypto_1.randomBytes)(10);
}
inc() {
this._seq++;
}
toString() {
return `${this._seed.toString('hex')}-${_.padStart(this._seq.toString(16), 4, '0')}`;
}
}
exports.RequestTracer = RequestTracer;
class Util {
// eslint-disable-next-line @typescript-eslint/no-empty-function
constructor() { }
/**
* @deprecated
*/
static isEthAvailable() {
return isEthAvailable;
}
/**
* Convert a big.js big number to an array of unsigned bytes
* @param bn
* @deprecated
*/
static bnToByteArrayUnsigned(bn) {
let ba = bn.abs().toByteArray();
if (ba.length) {
if (ba[0] === 0) {
ba = ba.slice(1);
}
return ba.map(function (v) {
return v < 0 ? v + 256 : v;
});
}
else {
// Empty array, nothing to do
return ba;
}
}
/**
* Utility method for handling arguments of pageable queries
* @param params
* @deprecated
*/
static preparePageableQuery(params = {}) {
const query = {};
if (params.limit) {
if (!_.isNumber(params.limit)) {
throw new Error('invalid limit argument, expecting number');
}
query.limit = params.limit;
}
if (params.skip) {
if (!_.isNumber(params.skip)) {
throw new Error('invalid skip argument, expecting number');
}
query.skip = params.skip;
}
return query;
}
/**
* Create a request identifier for tracing multi-request workflows
*/
static createRequestId() {
return new RequestTracer();
}
/**
* Convert a BTC xpub to an Ethereum address (with 0x prefix)
* @param xpub
* @deprecated
*/
static xpubToEthAddress(xpub) {
if (!isEthAvailable) {
throw new errors_1.EthereumLibraryUnavailableError(ethImport);
}
return ethUtil.bufferToHex(ethUtil.publicToAddress(utxo_lib_1.bip32.fromBase58(xpub).publicKey, true /* sanitize */));
}
/**
* Convert a BTC xpriv to an Ethereum private key (without 0x prefix)
* @param xprv
* @deprecated
*/
static xprvToEthPrivateKey(xprv) {
const node = utxo_lib_1.bip32.fromBase58(xprv);
if (!node.privateKey) {
throw new Error(`no privateKey`);
}
return node.privateKey.toString('hex');
}
/**
* Sign a message using Ethereum's ECsign method and return the signature string
* @param msgHash
* @param privKey
* @deprecated
*/
static ethSignMsgHash(msgHash, privKey) {
if (!isEthAvailable) {
throw new errors_1.EthereumLibraryUnavailableError(ethImport);
}
const signatureInParts = ethUtil.ecsign(Buffer.from(ethUtil.stripHexPrefix(msgHash), 'hex'), Buffer.from(privKey, 'hex'));
// Assemble strings from r, s and v
const r = ethUtil.setLengthLeft(signatureInParts.r, 32).toString('hex');
const s = ethUtil.setLengthLeft(signatureInParts.s, 32).toString('hex');
const v = ethUtil.stripHexPrefix(ethUtil.intToHex(signatureInParts.v));
// Concatenate the r, s and v parts to make the signature string
return ethUtil.addHexPrefix(r.concat(s, v));
}
/**
* Convert from wei string (or BN) to Ether (multiply by 1e18)
* @param wei
* @deprecated
*/
static weiToEtherString(wei) {
if (!isEthAvailable) {
throw new errors_1.EthereumLibraryUnavailableError(ethImport);
}
let bn = wei;
if (!(wei instanceof ethUtil.BN)) {
bn = new ethUtil.BN(wei);
}
Big.E_POS = 256;
Big.E_NEG = -18;
const weiString = bn.toString(10);
const big = new Big(weiString);
// 10^18
const ether = big.div('1000000000000000000');
return ether.toPrecision();
}
/**
* Recover an ethereum address from a signature and message hash
* @param msgHash
* @param signature
* @deprecated
*/
static ecRecoverEthAddress(msgHash, signature) {
msgHash = ethUtil.stripHexPrefix(msgHash);
signature = ethUtil.stripHexPrefix(signature);
const v = parseInt(signature.slice(128, 130), 16);
const r = Buffer.from(signature.slice(0, 64), 'hex');
const s = Buffer.from(signature.slice(64, 128), 'hex');
const pubKey = ethUtil.ecrecover(Buffer.from(msgHash, 'hex'), v, r, s);
return ethUtil.bufferToHex(ethUtil.pubToAddress(pubKey));
}
}
exports.Util = Util;
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* @prettier\n * @hidden\n */\n\n/**\n */\nimport { bip32 } from '@bitgo/utxo-lib';\nimport * as Big from 'big.js';\nimport * as _ from 'lodash';\nimport { randomBytes } from 'crypto';\nimport { IRequestTracer } from '../../api';\nimport { EthereumLibraryUnavailableError } from '../errors';\n\nconst debug = require('debug')('bitgo:v2:util');\n\nlet ethUtil;\nlet isEthAvailable = false;\n\nconst ethImport = 'ethereumjs-util';\nimport('ethereumjs-util')\n  .then((eth) => {\n    ethUtil = eth;\n    isEthAvailable = true;\n  })\n  .catch((e) => {\n    // ethereum currently not supported\n    debug('unable to load ethereumjs-util:');\n    debug(e.stack);\n  });\n\n/**\n * Create a request tracer for tracing workflows which involve multiple round trips to the server\n */\nexport class RequestTracer implements IRequestTracer {\n  private _seq = 0;\n  private readonly _seed: Buffer;\n  constructor() {\n    this._seed = randomBytes(10);\n  }\n\n  inc() {\n    this._seq++;\n  }\n\n  toString() {\n    return `${this._seed.toString('hex')}-${_.padStart(this._seq.toString(16), 4, '0')}`;\n  }\n}\n\nexport class Util {\n  // eslint-disable-next-line @typescript-eslint/no-empty-function\n  private constructor() {}\n\n  /**\n   * @deprecated\n   */\n  static isEthAvailable() {\n    return isEthAvailable;\n  }\n\n  /**\n   * Convert a big.js big number to an array of unsigned bytes\n   * @param bn\n   * @deprecated\n   */\n  static bnToByteArrayUnsigned(bn: any): any {\n    let ba = bn.abs().toByteArray();\n    if (ba.length) {\n      if (ba[0] === 0) {\n        ba = ba.slice(1);\n      }\n      return ba.map(function (v) {\n        return v < 0 ? v + 256 : v;\n      });\n    } else {\n      // Empty array, nothing to do\n      return ba;\n    }\n  }\n\n  /**\n   * Utility method for handling arguments of pageable queries\n   * @param params\n   * @deprecated\n   */\n  static preparePageableQuery(params: { limit?: number; skip?: number } = {}): { limit?: number; skip?: number } {\n    const query: any = {};\n    if (params.limit) {\n      if (!_.isNumber(params.limit)) {\n        throw new Error('invalid limit argument, expecting number');\n      }\n      query.limit = params.limit;\n    }\n    if (params.skip) {\n      if (!_.isNumber(params.skip)) {\n        throw new Error('invalid skip argument, expecting number');\n      }\n      query.skip = params.skip;\n    }\n    return query;\n  }\n\n  /**\n   * Create a request identifier for tracing multi-request workflows\n   */\n  static createRequestId(): RequestTracer {\n    return new RequestTracer();\n  }\n\n  /**\n   * Convert a BTC xpub to an Ethereum address (with 0x prefix)\n   * @param xpub\n   * @deprecated\n   */\n  static xpubToEthAddress(xpub: string): string {\n    if (!isEthAvailable) {\n      throw new EthereumLibraryUnavailableError(ethImport);\n    }\n    return ethUtil.bufferToHex(ethUtil.publicToAddress(bip32.fromBase58(xpub).publicKey, true /* sanitize */));\n  }\n\n  /**\n   * Convert a BTC xpriv to an Ethereum private key (without 0x prefix)\n   * @param xprv\n   * @deprecated\n   */\n  static xprvToEthPrivateKey(xprv: string): string {\n    const node = bip32.fromBase58(xprv);\n    if (!node.privateKey) {\n      throw new Error(`no privateKey`);\n    }\n    return node.privateKey.toString('hex');\n  }\n\n  /**\n   * Sign a message using Ethereum's ECsign method and return the signature string\n   * @param msgHash\n   * @param privKey\n   * @deprecated\n   */\n  static ethSignMsgHash(msgHash: string, privKey: string): string {\n    if (!isEthAvailable) {\n      throw new EthereumLibraryUnavailableError(ethImport);\n    }\n    const signatureInParts = ethUtil.ecsign(\n      Buffer.from(ethUtil.stripHexPrefix(msgHash), 'hex'),\n      Buffer.from(privKey, 'hex')\n    );\n\n    // Assemble strings from r, s and v\n    const r = ethUtil.setLengthLeft(signatureInParts.r, 32).toString('hex');\n    const s = ethUtil.setLengthLeft(signatureInParts.s, 32).toString('hex');\n    const v = ethUtil.stripHexPrefix(ethUtil.intToHex(signatureInParts.v));\n\n    // Concatenate the r, s and v parts to make the signature string\n    return ethUtil.addHexPrefix(r.concat(s, v));\n  }\n\n  /**\n   * Convert from wei string (or BN) to Ether (multiply by 1e18)\n   * @param wei\n   * @deprecated\n   */\n  static weiToEtherString(wei: any): string {\n    if (!isEthAvailable) {\n      throw new EthereumLibraryUnavailableError(ethImport);\n    }\n    let bn = wei;\n    if (!(wei instanceof ethUtil.BN)) {\n      bn = new ethUtil.BN(wei);\n    }\n    Big.E_POS = 256;\n    Big.E_NEG = -18;\n    const weiString = bn.toString(10);\n    const big = new Big(weiString);\n    // 10^18\n    const ether = big.div('1000000000000000000');\n    return ether.toPrecision();\n  }\n\n  /**\n   * Recover an ethereum address from a signature and message hash\n   * @param msgHash\n   * @param signature\n   * @deprecated\n   */\n  static ecRecoverEthAddress(msgHash: string, signature: string): string {\n    msgHash = ethUtil.stripHexPrefix(msgHash);\n    signature = ethUtil.stripHexPrefix(signature);\n\n    const v = parseInt(signature.slice(128, 130), 16);\n    const r = Buffer.from(signature.slice(0, 64), 'hex');\n    const s = Buffer.from(signature.slice(64, 128), 'hex');\n\n    const pubKey = ethUtil.ecrecover(Buffer.from(msgHash, 'hex'), v, r, s);\n    return ethUtil.bufferToHex(ethUtil.pubToAddress(pubKey));\n  }\n}\n"]}Выполнить команду
Для локальной разработки. Не используйте в интернете!