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Текущая директория: /opt/BitGoJS/modules/abstract-eth/dist/src/lib
Просмотр файла: transferBuilder.js
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.TransferBuilder = void 0;
const assert_1 = __importDefault(require("assert"));
const ethUtil = __importStar(require("ethereumjs-util"));
const ethereumjs_abi_1 = __importDefault(require("ethereumjs-abi"));
const bn_js_1 = __importDefault(require("bn.js"));
const statics_1 = require("@bitgo/statics");
const sdk_core_1 = require("@bitgo/sdk-core");
const utils_1 = require("./utils");
const utils_2 = require("ethers/lib/utils");
const walletUtil_1 = require("./walletUtil");
/** ETH transfer builder */
class TransferBuilder {
constructor(serializedData, isFirstSigner) {
this._EMPTY_HEX_VALUE = '0x';
this._isFirstSigner = isFirstSigner;
if (serializedData) {
this.decodeTransferData(serializedData);
}
else {
// initialize with default values for non mandatory fields
this._expirationTime = this.getExpirationTime();
this._data = this._EMPTY_HEX_VALUE;
this._signature = this._EMPTY_HEX_VALUE;
}
}
/**
* A method to set the native coin or ERC20 token to be transferred.
* This ERC20 token may not be compatible with the network.
*
* @param {string} coin - the native coin or ERC20 token to be set
* @returns {TransferBuilder} the transfer builder instance modified
*/
coin(coin) {
this._coin = statics_1.coins.get(coin);
if (this._coin instanceof statics_1.ContractAddressDefinedToken) {
this._tokenContractAddress = this._coin.contractAddress.toString();
}
return this;
}
getIsFirstSigner() {
return this._isFirstSigner ? this._isFirstSigner : false;
}
walletVersion(version) {
this._walletVersion = version;
return this;
}
data(additionalData) {
this._signature = this._EMPTY_HEX_VALUE;
this._data = additionalData;
return this;
}
amount(amount) {
if (!(0, utils_1.isValidAmount)(amount)) {
throw new sdk_core_1.InvalidParameterValueError('Invalid amount');
}
this._signature = this._EMPTY_HEX_VALUE;
this._amount = amount;
return this;
}
to(address) {
if ((0, utils_1.isValidEthAddress)(address)) {
this._signature = this._EMPTY_HEX_VALUE;
this._toAddress = address;
return this;
}
throw new sdk_core_1.InvalidParameterValueError('Invalid address');
}
contractSequenceId(counter) {
if (counter >= 0) {
this._signature = this._EMPTY_HEX_VALUE;
this._sequenceId = counter;
return this;
}
throw new sdk_core_1.InvalidParameterValueError('Invalid contract sequence id');
}
key(signKey) {
this._signKey = signKey;
return this;
}
expirationTime(date) {
if (date > 0) {
this._signature = this._EMPTY_HEX_VALUE;
this._expirationTime = date;
return this;
}
throw new sdk_core_1.InvalidParameterValueError('Invalid expiration time');
}
isFirstSigner(isFirstSigner) {
this._isFirstSigner = isFirstSigner;
return this;
}
tokenContractAddress(tokenContractAddress) {
this._tokenContractAddress = tokenContractAddress;
return this;
}
setCoinUsesNonPackedEncodingForTxData(isCoinUsesNonPackedEncodingForTxData) {
this._coinUsesNonPackedEncodingForTxData = isCoinUsesNonPackedEncodingForTxData;
return this;
}
setSignature(signature) {
this._signKey = null;
this._signature = signature;
return this;
}
signAndBuild(chainId, coinUsesNonPackedEncodingForTxData) {
this._chainId = chainId;
// If the coin uses non-packed encoding for tx data, the operation hash is calculated differently
// This new encoding type is applicable only for native coins and not tokens
this._coinUsesNonPackedEncodingForTxData =
coinUsesNonPackedEncodingForTxData && this._tokenContractAddress === undefined;
if (this.hasMandatoryFields()) {
if (this._isFirstSigner) {
// First signer signs different data than the second signer in multisig evm contracts.
return ethUtil.addHexPrefix(this.getSignatureData().toString('hex'));
}
else {
if (this._tokenContractAddress !== undefined) {
return (0, utils_1.sendMultiSigTokenData)(this._toAddress, this._amount, this._tokenContractAddress, this._expirationTime, this._sequenceId, this.getSignature());
}
else {
return (0, utils_1.sendMultiSigData)(this._toAddress, this._amount, this._data, this._expirationTime, this._sequenceId, this.getSignature());
}
}
}
throw new sdk_core_1.BuildTransactionError('Missing transfer mandatory fields. Amount, destination (to) address and sequenceID are mandatory');
}
hasMandatoryFields() {
return this._amount !== undefined && this._toAddress !== undefined && this._sequenceId !== undefined;
}
/**
* Obtains the proper operation hash to sign either a sendMultiSig data
* or a sendMultiSigToken data
*
* @returns {string} the operation hash
*/
getOperationHash() {
const operationData = this.getOperationData();
let operationHash;
if (this._coinUsesNonPackedEncodingForTxData) {
const types = operationData[0];
const values = operationData[1].map((item) => typeof item === 'string' || typeof item === 'number' ? item : '0x' + item.toString('hex'));
operationHash = (0, utils_2.keccak256)(utils_2.defaultAbiCoder.encode(types, values));
}
else {
// If the coin uses packed encoding for tx data or it is a token, the operation hash is calculated using the Ethereum ABI
operationHash = ethUtil.bufferToHex(ethereumjs_abi_1.default.soliditySHA3(...operationData));
}
return operationHash;
}
getOperationData() {
let operationData;
const prefix = this.getOperationHashPrefix();
if (this._tokenContractAddress !== undefined) {
operationData = [
['string', 'address', 'uint', 'address', 'uint', 'uint'],
[
prefix,
new bn_js_1.default(ethUtil.stripHexPrefix(this._toAddress), 16),
this._amount,
new bn_js_1.default(ethUtil.stripHexPrefix(this._tokenContractAddress), 16),
this._expirationTime,
this._sequenceId,
],
];
}
else {
const toAddress = this._coinUsesNonPackedEncodingForTxData
? this._toAddress
: new bn_js_1.default(ethUtil.stripHexPrefix(this._toAddress), 16);
operationData = [
['string', 'address', 'uint', 'bytes', 'uint', 'uint'],
[
prefix,
toAddress,
this._amount,
Buffer.from(ethUtil.padToEven(ethUtil.stripHexPrefix(this._data)) || '', 'hex'),
this._expirationTime,
this._sequenceId,
],
];
}
return operationData;
}
getOperationHashPrefix() {
if (this._walletVersion === 4) {
return this._tokenContractAddress ? `${this._chainId}-ERC20` : `${this._chainId}`;
}
return this._tokenContractAddress ? this.getTokenOperationHashPrefix() : this.getNativeOperationHashPrefix();
}
/**
* Get the prefix used in generating an operation hash for sending tokens
*
* @returns the string prefix
*/
getTokenOperationHashPrefix() {
return this._coin?.network?.tokenOperationHashPrefix ?? `${this._chainId}-ERC20` ?? 'ERC20';
}
/**
* Get the prefix used in generating an operation hash for sending native coins
*
* @returns the string prefix
*/
getNativeOperationHashPrefix() {
return this._coin?.network?.nativeCoinOperationHashPrefix ?? `${this._chainId}` ?? 'ETHER';
}
/** Return an expiration time, in seconds, set to one hour from now
*
* @returns {number} expiration time
*/
getExpirationTime() {
const currentDate = new Date();
currentDate.setHours(currentDate.getHours() + 1);
return currentDate.getTime() / 1000;
}
/**
* If a signing key is set for this builder, recalculates the signature
*
* @returns {string} the signature value
*/
getSignature() {
if (this._signKey) {
this._signature = this.ethSignMsgHash();
}
return this._signature;
}
ethSignMsgHash() {
const data = this.getOperationHash();
(0, assert_1.default)(this._signKey);
const keyBuffer = Buffer.from(ethUtil.padToEven(this._signKey), 'hex');
if (keyBuffer.length !== 32) {
throw new Error('private key length is invalid');
}
const signatureInParts = ethUtil.ecsign(Buffer.from(ethUtil.padToEven(ethUtil.stripHexPrefix(data)), 'hex'), keyBuffer);
// 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));
}
decodeTransferData(data) {
const transferData = (0, utils_1.decodeTransferData)(data, this._isFirstSigner);
this._toAddress = transferData.to;
this._amount = transferData.amount;
this._expirationTime = transferData.expireTime;
this._sequenceId = transferData.sequenceId;
this._signature = transferData.signature;
if (transferData.data) {
this._data = transferData.data;
}
if (transferData.tokenContractAddress) {
this._tokenContractAddress = transferData.tokenContractAddress;
}
}
getSignatureData() {
const method = this._tokenContractAddress
? ethereumjs_abi_1.default.methodID('sendMultiSigToken', walletUtil_1.sendMultiSigTokenTypes)
: ethereumjs_abi_1.default.methodID('sendMultiSig', walletUtil_1.sendMultiSigTypes);
const operationData = this.getOperationData();
const rawEncodedOperationData = ethereumjs_abi_1.default.rawEncode(...operationData);
return Buffer.concat([
method,
rawEncodedOperationData,
Buffer.from([this._coinUsesNonPackedEncodingForTxData ? 1 : 0]),
]);
}
}
exports.TransferBuilder = TransferBuilder;
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assert from 'assert';\nimport * as ethUtil from 'ethereumjs-util';\nimport EthereumAbi from 'ethereumjs-abi';\nimport BN from 'bn.js';\nimport { coins, BaseCoin, ContractAddressDefinedToken, EthereumNetwork as EthLikeNetwork } from '@bitgo/statics';\nimport { BuildTransactionError, InvalidParameterValueError } from '@bitgo/sdk-core';\nimport { decodeTransferData, sendMultiSigData, sendMultiSigTokenData, isValidEthAddress, isValidAmount } from './utils';\nimport { defaultAbiCoder, keccak256 } from 'ethers/lib/utils';\nimport { sendMultiSigTokenTypes, sendMultiSigTypes } from './walletUtil';\n\n/** ETH transfer builder */\nexport class TransferBuilder {\n  private readonly _EMPTY_HEX_VALUE = '0x';\n  protected _amount: string;\n  protected _toAddress: string;\n  protected _sequenceId: number;\n  protected _signKey: string | null;\n  protected _expirationTime: number;\n  protected _signature: string;\n  protected _isFirstSigner: boolean | undefined;\n  private _data: string;\n  private _tokenContractAddress?: string;\n  private _coin: Readonly<BaseCoin>;\n  private _chainId?: string;\n  private _coinUsesNonPackedEncodingForTxData?: boolean;\n  private _walletVersion?: number;\n\n  constructor(serializedData?: string, isFirstSigner?: boolean) {\n    this._isFirstSigner = isFirstSigner;\n    if (serializedData) {\n      this.decodeTransferData(serializedData);\n    } else {\n      // initialize with default values for non mandatory fields\n      this._expirationTime = this.getExpirationTime();\n      this._data = this._EMPTY_HEX_VALUE;\n      this._signature = this._EMPTY_HEX_VALUE;\n    }\n  }\n\n  /**\n   * A method to set the native coin or ERC20 token to be transferred.\n   * This ERC20 token may not be compatible with the network.\n   *\n   * @param {string} coin - the native coin or ERC20 token to be set\n   * @returns {TransferBuilder} the transfer builder instance modified\n   */\n  coin(coin: string): TransferBuilder {\n    this._coin = coins.get(coin);\n    if (this._coin instanceof ContractAddressDefinedToken) {\n      this._tokenContractAddress = this._coin.contractAddress.toString();\n    }\n\n    return this;\n  }\n\n  getIsFirstSigner(): boolean {\n    return this._isFirstSigner ? this._isFirstSigner : false;\n  }\n\n  walletVersion(version: number): TransferBuilder {\n    this._walletVersion = version;\n    return this;\n  }\n\n  data(additionalData: string): TransferBuilder {\n    this._signature = this._EMPTY_HEX_VALUE;\n    this._data = additionalData;\n    return this;\n  }\n\n  amount(amount: string): this {\n    if (!isValidAmount(amount)) {\n      throw new InvalidParameterValueError('Invalid amount');\n    }\n    this._signature = this._EMPTY_HEX_VALUE;\n    this._amount = amount;\n    return this;\n  }\n\n  to(address: string): TransferBuilder {\n    if (isValidEthAddress(address)) {\n      this._signature = this._EMPTY_HEX_VALUE;\n      this._toAddress = address;\n      return this;\n    }\n    throw new InvalidParameterValueError('Invalid address');\n  }\n\n  contractSequenceId(counter: number): TransferBuilder {\n    if (counter >= 0) {\n      this._signature = this._EMPTY_HEX_VALUE;\n      this._sequenceId = counter;\n      return this;\n    }\n    throw new InvalidParameterValueError('Invalid contract sequence id');\n  }\n\n  key(signKey: string): TransferBuilder {\n    this._signKey = signKey;\n    return this;\n  }\n\n  expirationTime(date: number): TransferBuilder {\n    if (date > 0) {\n      this._signature = this._EMPTY_HEX_VALUE;\n      this._expirationTime = date;\n      return this;\n    }\n    throw new InvalidParameterValueError('Invalid expiration time');\n  }\n\n  isFirstSigner(isFirstSigner: boolean): TransferBuilder {\n    this._isFirstSigner = isFirstSigner;\n    return this;\n  }\n\n  tokenContractAddress(tokenContractAddress: string): TransferBuilder {\n    this._tokenContractAddress = tokenContractAddress;\n    return this;\n  }\n\n  setCoinUsesNonPackedEncodingForTxData(isCoinUsesNonPackedEncodingForTxData: boolean): TransferBuilder {\n    this._coinUsesNonPackedEncodingForTxData = isCoinUsesNonPackedEncodingForTxData;\n    return this;\n  }\n\n  setSignature(signature: string): TransferBuilder {\n    this._signKey = null;\n    this._signature = signature;\n    return this;\n  }\n\n  signAndBuild(chainId: string, coinUsesNonPackedEncodingForTxData?: boolean): string {\n    this._chainId = chainId;\n\n    // If the coin uses non-packed encoding for tx data, the operation hash is calculated differently\n    // This new encoding type is applicable only for native coins and not tokens\n    this._coinUsesNonPackedEncodingForTxData =\n      coinUsesNonPackedEncodingForTxData && this._tokenContractAddress === undefined;\n    if (this.hasMandatoryFields()) {\n      if (this._isFirstSigner) {\n        // First signer signs different data than the second signer in multisig evm contracts.\n        return ethUtil.addHexPrefix(this.getSignatureData().toString('hex'));\n      } else {\n        if (this._tokenContractAddress !== undefined) {\n          return sendMultiSigTokenData(\n            this._toAddress,\n            this._amount,\n            this._tokenContractAddress,\n            this._expirationTime,\n            this._sequenceId,\n            this.getSignature()\n          );\n        } else {\n          return sendMultiSigData(\n            this._toAddress,\n            this._amount,\n            this._data,\n            this._expirationTime,\n            this._sequenceId,\n            this.getSignature()\n          );\n        }\n      }\n    }\n    throw new BuildTransactionError(\n      'Missing transfer mandatory fields. Amount, destination (to) address and sequenceID are mandatory'\n    );\n  }\n\n  private hasMandatoryFields(): boolean {\n    return this._amount !== undefined && this._toAddress !== undefined && this._sequenceId !== undefined;\n  }\n\n  /**\n   * Obtains the proper operation hash to sign either a sendMultiSig data\n   * or a sendMultiSigToken data\n   *\n   * @returns {string} the operation hash\n   */\n  public getOperationHash(): string {\n    const operationData = this.getOperationData();\n    let operationHash: string;\n\n    if (this._coinUsesNonPackedEncodingForTxData) {\n      const types: string[] = operationData[0] as string[];\n      const values: (string | number)[] = operationData[1].map((item) =>\n        typeof item === 'string' || typeof item === 'number' ? item : '0x' + item.toString('hex')\n      );\n      operationHash = keccak256(defaultAbiCoder.encode(types, values));\n    } else {\n      // If the coin uses packed encoding for tx data or it is a token, the operation hash is calculated using the Ethereum ABI\n      operationHash = ethUtil.bufferToHex(EthereumAbi.soliditySHA3(...operationData));\n    }\n    return operationHash;\n  }\n\n  protected getOperationData(): (string | number | Buffer)[][] {\n    let operationData;\n    const prefix = this.getOperationHashPrefix();\n    if (this._tokenContractAddress !== undefined) {\n      operationData = [\n        ['string', 'address', 'uint', 'address', 'uint', 'uint'],\n        [\n          prefix,\n          new BN(ethUtil.stripHexPrefix(this._toAddress), 16),\n          this._amount,\n          new BN(ethUtil.stripHexPrefix(this._tokenContractAddress), 16),\n          this._expirationTime,\n          this._sequenceId,\n        ],\n      ];\n    } else {\n      const toAddress = this._coinUsesNonPackedEncodingForTxData\n        ? this._toAddress\n        : new BN(ethUtil.stripHexPrefix(this._toAddress), 16);\n      operationData = [\n        ['string', 'address', 'uint', 'bytes', 'uint', 'uint'],\n        [\n          prefix,\n          toAddress,\n          this._amount,\n          Buffer.from(ethUtil.padToEven(ethUtil.stripHexPrefix(this._data)) || '', 'hex'),\n          this._expirationTime,\n          this._sequenceId,\n        ],\n      ];\n    }\n    return operationData;\n  }\n\n  private getOperationHashPrefix(): string {\n    if (this._walletVersion === 4) {\n      return this._tokenContractAddress ? `${this._chainId}-ERC20` : `${this._chainId}`;\n    }\n    return this._tokenContractAddress ? this.getTokenOperationHashPrefix() : this.getNativeOperationHashPrefix();\n  }\n\n  /**\n   * Get the prefix used in generating an operation hash for sending tokens\n   *\n   * @returns the string prefix\n   */\n  protected getTokenOperationHashPrefix(): string {\n    return (this._coin?.network as EthLikeNetwork)?.tokenOperationHashPrefix ?? `${this._chainId}-ERC20` ?? 'ERC20';\n  }\n\n  /**\n   * Get the prefix used in generating an operation hash for sending native coins\n   *\n   * @returns the string prefix\n   */\n  protected getNativeOperationHashPrefix(): string {\n    return (this._coin?.network as EthLikeNetwork)?.nativeCoinOperationHashPrefix ?? `${this._chainId}` ?? 'ETHER';\n  }\n\n  /** Return an expiration time, in seconds, set to one hour from now\n   *\n   * @returns {number} expiration time\n   */\n  private getExpirationTime(): number {\n    const currentDate = new Date();\n    currentDate.setHours(currentDate.getHours() + 1);\n    return currentDate.getTime() / 1000;\n  }\n\n  /**\n   * If a signing key is set for this builder, recalculates the signature\n   *\n   * @returns {string} the signature value\n   */\n  protected getSignature(): string {\n    if (this._signKey) {\n      this._signature = this.ethSignMsgHash();\n    }\n    return this._signature!;\n  }\n\n  protected ethSignMsgHash(): string {\n    const data = this.getOperationHash();\n    assert(this._signKey);\n    const keyBuffer = Buffer.from(ethUtil.padToEven(this._signKey), 'hex');\n    if (keyBuffer.length !== 32) {\n      throw new Error('private key length is invalid');\n    }\n    const signatureInParts = ethUtil.ecsign(\n      Buffer.from(ethUtil.padToEven(ethUtil.stripHexPrefix(data)), 'hex'),\n      keyBuffer\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  private decodeTransferData(data: string): void {\n    const transferData = decodeTransferData(data, this._isFirstSigner);\n\n    this._toAddress = transferData.to;\n    this._amount = transferData.amount;\n    this._expirationTime = transferData.expireTime;\n    this._sequenceId = transferData.sequenceId;\n    this._signature = transferData.signature;\n\n    if (transferData.data) {\n      this._data = transferData.data;\n    }\n\n    if (transferData.tokenContractAddress) {\n      this._tokenContractAddress = transferData.tokenContractAddress;\n    }\n  }\n\n  public getSignatureData(): Buffer<ArrayBuffer> {\n    const method = this._tokenContractAddress\n      ? EthereumAbi.methodID('sendMultiSigToken', sendMultiSigTokenTypes)\n      : EthereumAbi.methodID('sendMultiSig', sendMultiSigTypes);\n    const operationData = this.getOperationData();\n    const rawEncodedOperationData = EthereumAbi.rawEncode(...operationData);\n    return Buffer.concat([\n      method,\n      rawEncodedOperationData,\n      Buffer.from([this._coinUsesNonPackedEncodingForTxData ? 1 : 0]),\n    ]);\n  }\n}\n"]}Выполнить команду
Для локальной разработки. Не используйте в интернете!