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Текущая директория: /opt/BitGoJS/modules/sdk-coin-trx/dist/src/lib

Просмотр файла: transactionBuilder.js

"use strict";
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.TransactionBuilder = void 0;
const crypto_1 = require("crypto");
const _ = __importStar(require("lodash"));
const bignumber_js_1 = __importDefault(require("bignumber.js"));
const sdk_core_1 = require("@bitgo/sdk-core");
const utils_1 = require("./utils");
const transaction_1 = require("./transaction");
const keyPair_1 = require("./keyPair");
/**
 * Tron transaction builder.
 */
class TransactionBuilder extends sdk_core_1.BaseTransactionBuilder {
    /**
     * Public constructor.
     *
     * @param {CoinConfig} _coinConfig Configuration object
     */
    constructor(_coinConfig) {
        super(_coinConfig);
    }
    /**
     * Parse transaction takes in raw JSON directly from the node.
     *
     * @param {TransactionReceipt} rawTransaction The Tron transaction in JSON format as returned by the Tron lib or a stringifyed version of such JSON.
     * @returns {Transaction} Tron transaction
     */
    fromImplementation(rawTransaction) {
        let tx;
        if (typeof rawTransaction === 'string') {
            const transaction = JSON.parse(rawTransaction);
            tx = new transaction_1.Transaction(this._coinConfig, transaction);
        }
        else {
            tx = new transaction_1.Transaction(this._coinConfig, rawTransaction);
        }
        return tx;
    }
    /** @inheritdoc */
    signImplementation(key) {
        if (!this.transaction.inputs) {
            throw new sdk_core_1.SigningError('Transaction has no sender');
        }
        if (!this.transaction.outputs) {
            throw new sdk_core_1.SigningError('Transaction has no receiver');
        }
        return this.applySignature(key);
    }
    applySignature(key) {
        const oldTransaction = this.transaction.toJson();
        // Store the original signatures to compare them with the new ones in a later step. Signatures
        // can be undefined if this is the first time the transaction is being signed
        const oldSignatureCount = oldTransaction.signature ? oldTransaction.signature.length : 0;
        let signedTransaction;
        try {
            const keyPair = new keyPair_1.KeyPair({ prv: key.key });
            // Since the key pair was generated using a private key, it will always have a prv attribute,
            // hence it is safe to use non-null operator
            signedTransaction = (0, utils_1.signTransaction)(keyPair.getKeys().prv, this.transaction.toJson());
        }
        catch (e) {
            throw new sdk_core_1.SigningError('Failed to sign transaction via helper.');
        }
        // Ensure that we have more signatures than what we started with
        if (!signedTransaction.signature || oldSignatureCount >= signedTransaction.signature.length) {
            throw new sdk_core_1.SigningError('Transaction signing did not return an additional signature.');
        }
        return new transaction_1.Transaction(this._coinConfig, signedTransaction);
    }
    /** @inheritdoc */
    async buildImplementation() {
        // This is a no-op since Tron transactions are built from
        if (!this.transaction.id) {
            throw new sdk_core_1.BuildTransactionError('A valid transaction must have an id');
        }
        return Promise.resolve(this.transaction);
    }
    initBuilder(tx) {
        this.transaction = this.fromImplementation(tx);
    }
    /**
     * Extend the validity of this transaction by the given amount of time
     *
     * @param {number} extensionMs The number of milliseconds to extend the validTo time
     * @returns {undefined}
     */
    extendValidTo(extensionMs) {
        this.transaction.extendExpiration(extensionMs);
    }
    /** @inheritdoc */
    validateValue(value) {
        if (value.isLessThanOrEqualTo(0)) {
            throw new Error('Value cannot be below zero.');
        }
        // max long in Java - assumed upper limit for a TRX transaction
        if (value.isGreaterThan(new bignumber_js_1.default('9223372036854775807'))) {
            throw new Error('Value cannot be greater than handled by the javatron node.');
        }
    }
    /** @inheritdoc */
    validateAddress(address) {
        // assumes a base 58 address for our addresses
        if (!(0, utils_1.isBase58Address)(address.address)) {
            throw new Error(address.address + ' is not a valid base58 address.');
        }
    }
    /** @inheritdoc */
    validateKey(key) {
        try {
            new keyPair_1.KeyPair({ prv: key.key });
        }
        catch (err) {
            throw new Error('The provided key is not valid');
        }
    }
    /**
     * Validate the contents of a raw transaction. The validation
     * phase is to compare the raw-data-hex to the raw-data of the
     * transaction.
     *
     * The contents to be validated are
     * 1. The transaction id
     * 2. The expiration date
     * 3. The timestamp
     * 4. The contract
     *
     * @param {TransactionReceipt | string} rawTransaction The raw transaction to be validated
     */
    validateRawTransaction(rawTransaction) {
        // TODO: Validation of signature
        if (!rawTransaction) {
            throw new sdk_core_1.InvalidTransactionError('Raw transaction is empty');
        }
        let currTransaction;
        // rawTransaction can be either Stringified JSON OR
        // it can be a regular JSON object (not stringified).
        if (typeof rawTransaction === 'string') {
            try {
                currTransaction = JSON.parse(rawTransaction);
            }
            catch (e) {
                throw new sdk_core_1.ParseTransactionError('There was error in parsing the JSON string');
            }
        }
        else if (_.isObject(rawTransaction)) {
            currTransaction = rawTransaction;
        }
        else {
            throw new sdk_core_1.InvalidTransactionError('Transaction is not an object or stringified json');
        }
        const decodedRawDataHex = (0, utils_1.decodeTransaction)(currTransaction.raw_data_hex);
        if (!currTransaction.txID) {
            throw new sdk_core_1.InvalidTransactionError('Transaction ID is empty');
        }
        // Validate the transaction ID from the raw data hex
        const hexBuffer = Buffer.from(currTransaction.raw_data_hex, 'hex');
        const currTxID = (0, crypto_1.createHash)('sha256').update(hexBuffer).digest('hex');
        if (currTransaction.txID !== currTxID) {
            throw new sdk_core_1.InvalidTransactionError('Transaction has not have a valid id');
        }
        // Validate the expiration time from the raw-data-hex
        if (currTransaction.raw_data.expiration !== decodedRawDataHex.expiration) {
            throw new sdk_core_1.InvalidTransactionError('Transaction has not have a valid expiration');
        }
        // Validate the timestamp from the raw-data-hex
        if (currTransaction.raw_data.timestamp !== decodedRawDataHex.timestamp) {
            throw new sdk_core_1.InvalidTransactionError('Transaction has not have a valid timetamp');
        }
        // Transaction contract must exist
        if (!currTransaction.raw_data.contract) {
            throw new sdk_core_1.InvalidTransactionError('Transaction contracts are empty');
        }
    }
    /** @inheritdoc */
    validateTransaction(transaction) {
        const hexBuffer = Buffer.from(transaction.toJson().raw_data_hex, 'hex');
        const txId = (0, crypto_1.createHash)('sha256').update(hexBuffer).digest('hex');
        if (transaction.id !== txId) {
            throw new sdk_core_1.InvalidTransactionError(transaction.id + ' is not a valid transaction id. Expecting: ' + txId);
        }
    }
    /** @inheritdoc */
    get transaction() {
        return this._transaction;
    }
    /** @inheritdoc */
    set transaction(transaction) {
        this._transaction = transaction;
    }
}
exports.TransactionBuilder = TransactionBuilder;
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{ createHash } from 'crypto';\nimport * as _ from 'lodash';\nimport BigNumber from 'bignumber.js';\nimport { BaseCoin as CoinConfig } from '@bitgo/statics';\nimport {\n  BaseKey,\n  BaseTransactionBuilder,\n  BuildTransactionError,\n  InvalidTransactionError,\n  ParseTransactionError,\n  SigningError,\n} from '@bitgo/sdk-core';\nimport { TransactionReceipt } from './iface';\nimport { Address } from './address';\nimport { signTransaction, isBase58Address, decodeTransaction } from './utils';\nimport { Transaction } from './transaction';\nimport { KeyPair } from './keyPair';\n\n/**\n * Tron transaction builder.\n */\nexport class TransactionBuilder extends BaseTransactionBuilder {\n  // transaction being built\n  private _transaction: Transaction;\n  /**\n   * Public constructor.\n   *\n   * @param {CoinConfig} _coinConfig Configuration object\n   */\n  constructor(_coinConfig: Readonly<CoinConfig>) {\n    super(_coinConfig);\n  }\n\n  /**\n   * Parse transaction takes in raw JSON directly from the node.\n   *\n   * @param {TransactionReceipt} rawTransaction The Tron transaction in JSON format as returned by the Tron lib or a stringifyed version of such JSON.\n   * @returns {Transaction} Tron transaction\n   */\n  protected fromImplementation(rawTransaction: TransactionReceipt | string): Transaction {\n    let tx;\n    if (typeof rawTransaction === 'string') {\n      const transaction = JSON.parse(rawTransaction);\n      tx = new Transaction(this._coinConfig, transaction);\n    } else {\n      tx = new Transaction(this._coinConfig, rawTransaction);\n    }\n    return tx;\n  }\n\n  /** @inheritdoc */\n  protected signImplementation(key: BaseKey): Transaction {\n    if (!this.transaction.inputs) {\n      throw new SigningError('Transaction has no sender');\n    }\n\n    if (!this.transaction.outputs) {\n      throw new SigningError('Transaction has no receiver');\n    }\n    return this.applySignature(key);\n  }\n\n  protected applySignature(key: BaseKey): Transaction {\n    const oldTransaction = this.transaction.toJson();\n    // Store the original signatures to compare them with the new ones in a later step. Signatures\n    // can be undefined if this is the first time the transaction is being signed\n    const oldSignatureCount = oldTransaction.signature ? oldTransaction.signature.length : 0;\n    let signedTransaction: TransactionReceipt;\n    try {\n      const keyPair = new KeyPair({ prv: key.key });\n      // Since the key pair was generated using a private key, it will always have a prv attribute,\n      // hence it is safe to use non-null operator\n      signedTransaction = signTransaction(keyPair.getKeys().prv!, this.transaction.toJson());\n    } catch (e) {\n      throw new SigningError('Failed to sign transaction via helper.');\n    }\n\n    // Ensure that we have more signatures than what we started with\n    if (!signedTransaction.signature || oldSignatureCount >= signedTransaction.signature.length) {\n      throw new SigningError('Transaction signing did not return an additional signature.');\n    }\n\n    return new Transaction(this._coinConfig, signedTransaction);\n  }\n\n  /** @inheritdoc */\n  protected async buildImplementation(): Promise<Transaction> {\n    // This is a no-op since Tron transactions are built from\n    if (!this.transaction.id) {\n      throw new BuildTransactionError('A valid transaction must have an id');\n    }\n    return Promise.resolve(this.transaction);\n  }\n\n  initBuilder(tx: TransactionReceipt | string) {\n    this.transaction = this.fromImplementation(tx);\n  }\n\n  /**\n   * Extend the validity of this transaction by the given amount of time\n   *\n   * @param {number} extensionMs The number of milliseconds to extend the validTo time\n   * @returns {undefined}\n   */\n  extendValidTo(extensionMs: number): void {\n    this.transaction.extendExpiration(extensionMs);\n  }\n\n  /** @inheritdoc */\n  validateValue(value: BigNumber): void {\n    if (value.isLessThanOrEqualTo(0)) {\n      throw new Error('Value cannot be below zero.');\n    }\n\n    // max long in Java - assumed upper limit for a TRX transaction\n    if (value.isGreaterThan(new BigNumber('9223372036854775807'))) {\n      throw new Error('Value cannot be greater than handled by the javatron node.');\n    }\n  }\n\n  /** @inheritdoc */\n  validateAddress(address: Address): void {\n    // assumes a base 58 address for our addresses\n    if (!isBase58Address(address.address)) {\n      throw new Error(address.address + ' is not a valid base58 address.');\n    }\n  }\n\n  /** @inheritdoc */\n  validateKey(key: BaseKey): void {\n    try {\n      new KeyPair({ prv: key.key });\n    } catch (err) {\n      throw new Error('The provided key is not valid');\n    }\n  }\n\n  /**\n   * Validate the contents of a raw transaction. The validation\n   * phase is to compare the raw-data-hex to the raw-data of the\n   * transaction.\n   *\n   * The contents to be validated are\n   * 1. The transaction id\n   * 2. The expiration date\n   * 3. The timestamp\n   * 4. The contract\n   *\n   * @param {TransactionReceipt | string} rawTransaction The raw transaction to be validated\n   */\n  validateRawTransaction(rawTransaction: TransactionReceipt | string): void {\n    // TODO: Validation of signature\n    if (!rawTransaction) {\n      throw new InvalidTransactionError('Raw transaction is empty');\n    }\n    let currTransaction: TransactionReceipt;\n    // rawTransaction can be either Stringified JSON OR\n    // it can be a regular JSON object (not stringified).\n    if (typeof rawTransaction === 'string') {\n      try {\n        currTransaction = JSON.parse(rawTransaction);\n      } catch (e) {\n        throw new ParseTransactionError('There was error in parsing the JSON string');\n      }\n    } else if (_.isObject(rawTransaction)) {\n      currTransaction = rawTransaction;\n    } else {\n      throw new InvalidTransactionError('Transaction is not an object or stringified json');\n    }\n    const decodedRawDataHex = decodeTransaction(currTransaction.raw_data_hex);\n    if (!currTransaction.txID) {\n      throw new InvalidTransactionError('Transaction ID is empty');\n    }\n    // Validate the transaction ID from the raw data hex\n    const hexBuffer = Buffer.from(currTransaction.raw_data_hex, 'hex');\n    const currTxID = createHash('sha256').update(hexBuffer).digest('hex');\n    if (currTransaction.txID !== currTxID) {\n      throw new InvalidTransactionError('Transaction has not have a valid id');\n    }\n    // Validate the expiration time from the raw-data-hex\n    if (currTransaction.raw_data.expiration !== decodedRawDataHex.expiration) {\n      throw new InvalidTransactionError('Transaction has not have a valid expiration');\n    }\n    // Validate the timestamp from the raw-data-hex\n    if (currTransaction.raw_data.timestamp !== decodedRawDataHex.timestamp) {\n      throw new InvalidTransactionError('Transaction has not have a valid timetamp');\n    }\n    // Transaction contract must exist\n    if (!currTransaction.raw_data.contract) {\n      throw new InvalidTransactionError('Transaction contracts are empty');\n    }\n  }\n\n  /** @inheritdoc */\n  validateTransaction(transaction: Transaction): void {\n    const hexBuffer = Buffer.from(transaction.toJson().raw_data_hex, 'hex');\n    const txId = createHash('sha256').update(hexBuffer).digest('hex');\n    if (transaction.id !== txId) {\n      throw new InvalidTransactionError(transaction.id + ' is not a valid transaction id. Expecting: ' + txId);\n    }\n  }\n\n  /** @inheritdoc */\n  protected get transaction(): Transaction {\n    return this._transaction;\n  }\n\n  /** @inheritdoc */\n  protected set transaction(transaction: Transaction) {\n    this._transaction = transaction;\n  }\n}\n"]}

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