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/** |
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* @license |
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* Copyright (c) 2020 UMI |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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'use strict' |
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const array = require('../util/array.js') |
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const sha256 = require('../util/sha256.js') |
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const validator = require('../util/validator.js') |
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const converter = require('../util/converter.js') |
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const Address = require('../address/Address.js') |
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const text = require('../util/text.js') |
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/** |
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* Класс для работы с транзакциями. |
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* @class |
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*/ |
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class Transaction { |
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/** |
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* @example |
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* let trx = new Transaction() |
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*/ |
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constructor () { |
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/** |
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* Транзакция в бинарном виде. |
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* @type {number[]} |
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* @private |
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*/ |
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this._bytes = array.arrayNew(150) |
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this.setVersion(Transaction.Basic) |
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} |
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/** |
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* Статический метод, создает объект из массива байтов. |
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* @param {ArrayLike<number>} bytes Транзакция в бинарном виде. |
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* @returns {Transaction} |
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* @throws {Error} |
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* @example |
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* let bytes = new Uint8Array(150) |
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* let trx = Transaction.fromBytes(bytes) |
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*/ |
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static fromBytes (bytes) { |
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if (bytes.length !== 150) { |
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throw new Error('invalid length') |
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} |
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const tx = new Transaction() |
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array.arraySet(tx._bytes, bytes) |
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return tx |
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} |
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/** |
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* Транзакция в бинарном виде, 150 байт. |
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* @returns {number[]} |
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* @example |
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* let bytes = new Transaction().getBytes() |
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*/ |
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getBytes () { |
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return this._bytes.slice(0) |
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} |
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/** |
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* Хэш (txid) транзакции. |
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* @returns {number[]} |
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* @example |
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* let hash = new Transaction().getHash() |
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*/ |
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getHash () { |
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return sha256.sha256(this._bytes) |
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} |
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/** |
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* Версия (тип) транзакции. |
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* @returns {number} |
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* @example |
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* let ver = new Transaction().getVersion() |
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*/ |
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getVersion () { |
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return this._bytes[0] |
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} |
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/** |
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* Устанавливает версию и возвращает this. |
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* @param {number} version Версия (тип) транзакции. |
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* @returns {Transaction} |
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* @throws {Error} |
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* @see Transaction.Genesis |
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* @see Transaction.Basic |
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* @see Transaction.CreateStructure |
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* @see Transaction.UpdateStructure |
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* @see Transaction.UpdateProfitAddress |
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* @see Transaction.UpdateFeeAddress |
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* @see Transaction.CreateTransitAddress |
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* @see Transaction.DeleteTransitAddress |
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*/ |
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setVersion (version) { |
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validator.validateInt(version, 0, 7) |
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this._bytes[0] = version |
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return this |
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} |
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/** |
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* Отправитель.\ |
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* Доступно для всех типов транзакций. |
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* @returns {Address} |
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* @example |
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* let sender = new Transaction().getSender() |
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*/ |
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getSender () { |
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return Address.Address.fromBytes(this._bytes.slice(1, 35)) |
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} |
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/** |
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* Устанавливает отправителя и возвращает this. |
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* @param {Address} address Адрес отправителя. |
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* @returns {Transaction} |
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* @throws {Error} |
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* @example |
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* let sender = new Address() |
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* let trx = new Transaction().setSender(sender) |
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*/ |
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setSender (address) { |
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array.arraySet(this._bytes, address.getBytes(), 1, 34) |
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return this |
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} |
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/** |
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* Получатель.\ |
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* Недоступно для транзакций CreateStructure и UpdateStructure. |
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* @returns {Address} |
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* @example |
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* let recipient = new Transaction().getRecipient() |
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*/ |
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getRecipient () { |
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this.checkVersion([0, 1, 4, 5, 6, 7]) |
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return Address.Address.fromBytes(this._bytes.slice(35, 69)) |
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} |
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/** |
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* Устанавливает получателя и возвращает this.\ |
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* Недоступно для транзакций CreateStructure и UpdateStructure. |
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* @param {Address} address Адрес получателя. |
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* @returns {Transaction} |
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* @throws {Error} |
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* @example |
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* let recipient = new Address() |
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* let trx = new Transaction().setRecipient(recipient) |
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*/ |
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setRecipient (address) { |
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this.checkVersion([0, 1, 4, 5, 6, 7]) |
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array.arraySet(this._bytes, address.getBytes(), 35) |
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return this |
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} |
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/** |
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* Сумма перевода в UMI-центах, цело число в промежутке от 1 до 18446744073709551615.\ |
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* Доступно только для Genesis и Basic транзакций. |
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* @returns {number} |
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* @example |
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* let value = new Transaction().getValue() |
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*/ |
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getValue () { |
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this.checkVersion([0, 1]) |
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return converter.bytesToUint64(this._bytes.slice(69, 77)) |
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} |
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/** |
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* Устанавливает сумму и возвращает this.\ |
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* Принимает значения в промежутке от 1 до 18446744073709551615.\ |
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* Доступно только для Genesis и Basic транзакций. |
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* @param {number} value Целое число от 1 до 18446744073709551615. |
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* @returns {Transaction} |
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* @throws {Error} |
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* @example |
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* let trx = new Transaction().setValue(42) |
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*/ |
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setValue (value) { |
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this.checkVersion([0, 1]) |
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validator.validateInt(value, 1, 18446744073709551615) |
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array.arraySet(this._bytes, converter.uint64ToBytes(value), 69) |
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return this |
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} |
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/** |
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* Nonce, целое число в промежутке от 0 до 18446744073709551615.\ |
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* Генерируется автоматически при вызове sign(). |
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* @returns {number} |
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* @example |
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* let nonce = new Transaction().getNonce() |
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*/ |
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getNonce () { |
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return converter.bytesToUint64(this._bytes.slice(77, 85)) |
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} |
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/** |
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* Устанавливает nonce и возвращает this. |
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* @param {number} nonce Целое число в промежутке от 0 до 18446744073709551615. |
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* @returns {Transaction} |
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* @throws {Error} |
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* @example |
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* let nonce = Date.now() |
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* let trx = new Transaction().setNonce(nonce) |
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*/ |
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setNonce (nonce) { |
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validator.validateInt(nonce, 0, 18446744073709551615) |
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array.arraySet(this._bytes, converter.uint64ToBytes(nonce), 77) |
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return this |
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} |
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/** |
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* Цифровая подпись транзакции, длина 64 байта. |
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* @returns {number[]} |
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* @example |
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* let signature = new Transaction().getSignature() |
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*/ |
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getSignature () { |
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return this._bytes.slice(85, 149) |
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} |
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/** |
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* Устанавливает цифровую подпись и возвращает this. |
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* @param {ArrayLike<number>} signature Подпись, длина 64 байта. |
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* @returns {Transaction} |
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* @throws {Error} |
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* @example |
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* let signature = new Uint8Array(64) |
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* let trx = new Transaction().setSignature(signature) |
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*/ |
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setSignature (signature) { |
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if (signature.length !== 64) { |
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throw new Error('invalid length') |
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} |
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array.arraySet(this._bytes, signature, 85) |
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return this |
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} |
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/** |
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* Подписать транзакцию приватным ключом. |
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* @param {SecretKey} secretKey Приватный ключ. |
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* @returns {Transaction} |
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* @throws {Error} |
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* @example |
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* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
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* let trx = new Transaction().sign(secKey) |
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*/ |
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sign (secretKey) { |
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return this.setNonce(new Date().getTime()).setSignature(secretKey.sign(this._bytes.slice(0, 85))) |
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} |
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/** |
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* Префикс адресов, принадлежащих структуре.\ |
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* Доступно только для CreateStructure и UpdateStructure. |
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* @returns {string} |
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* @throws {Error} |
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* @example |
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* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
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* let prefix = trx.getPrefix() |
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*/ |
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getPrefix () { |
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this.checkVersion([2, 3]) |
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return converter.versionToPrefix(converter.bytesToUint16(this._bytes.slice(35, 37))) |
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} |
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/** |
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* Устанавливает префикс и возвращает this.\ |
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* Доступно только для CreateStructure и UpdateStructure. |
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* @param {string} prefix Префикс адресов, принадлежащих структуре. |
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* @returns {Transaction} |
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* @throws {Error} |
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* @example |
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* let trx = new Transaction().setVersion(CreateStructure) |
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* trx.setPrefix('aaa') |
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*/ |
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setPrefix (prefix) { |
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this.checkVersion([2, 3]) |
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array.arraySet(this._bytes, converter.uint16ToBytes(converter.prefixToVersion(prefix)), 35) |
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return this |
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} |
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/** |
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* Название структуры в кодировке UTF-8.\ |
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* Доступно только для CreateStructure и UpdateStructure. |
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* @returns {string} |
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* @throws {Error} |
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* @example |
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* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
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* let name = trx.getName() |
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*/ |
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getName () { |
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this.checkVersion([2, 3]) |
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if (this._bytes[41] > 35) { |
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throw new Error('invalid length') |
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} |
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return text.textDecode(this._bytes.slice(42, 42 + this._bytes[41])) |
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} |
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/** |
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* Устанавливает название структуры и возвращает this.\ |
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* Доступно только для CreateStructure и UpdateStructure. |
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* @param {string} name Название структуры в кодировке UTF-8. |
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* @returns {Transaction} |
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* @throws {Error} |
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* @example |
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* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
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* trx.setName('Hello World') |
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*/ |
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setName (name) { |
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this.checkVersion([2, 3]) |
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const bytes = text.textEncode(name) |
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if (bytes.length > 35) { |
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throw new Error('name is too long') |
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} |
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array.arraySet(this._bytes, array.arrayNew(36), 41) |
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array.arraySet(this._bytes, bytes, 42) |
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this._bytes[41] = bytes.length |
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return this |
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} |
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/** |
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* Профита в сотых долях процента с шагом в 0.01%.\ |
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* Принимает значения от 100 до 500 (соответственно от 1% до 5%).\ |
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* Доступно только для CreateStructure и UpdateStructure. |
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* @returns {number} |
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* @example |
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* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
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* let profit = trx.getProfitPercent(100) |
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*/ |
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getProfitPercent () { |
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1 |
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this.checkVersion([2, 3]) |
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1 |
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return converter.bytesToUint16(this._bytes.slice(37, 39)) |
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} |
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/** |
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* Устанавливает процент профита и возвращает this.\ |
353
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* Доступно только для CreateStructure и UpdateStructure. |
354
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* @param {number} percent Профит в сотых долях процента с шагом в 0.01%. |
355
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* Принимает значения от 100 до 500 (соответственно от 1% до 5%). |
356
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* @returns {Transaction} |
357
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* @throws {Error} |
358
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* @example |
359
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* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
360
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* trx.setProfitPercent(100) |
361
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*/ |
362
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setProfitPercent (percent) { |
363
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2 |
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this.checkVersion([2, 3]) |
364
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2 |
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validator.validateInt(percent, 100, 500) |
365
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1 |
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array.arraySet(this._bytes, converter.uint16ToBytes(percent), 37) |
366
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1 |
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return this |
367
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} |
368
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369
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/** |
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* Комиссия в сотых долях процента с шагом в 0.01%.\ |
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* Принимает значения от 0 до 2000 (соответственно от 0% до 20%).\ |
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* Доступно только для CreateStructure и UpdateStructure. |
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* @returns {number} |
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* @example |
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* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
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* let fee = trx.getFeePercent() |
377
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*/ |
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getFeePercent () { |
379
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1 |
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this.checkVersion([2, 3]) |
380
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1 |
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return converter.bytesToUint16(this._bytes.slice(39, 41)) |
381
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} |
382
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383
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/** |
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* Устанавливает размер комиссии и возвращает this.\ |
385
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* Доступно только для CreateStructure и UpdateStructure. |
386
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* @param {number} percent Комиссия в сотых долях процента с шагом в 0.01%. Принимает значения от 0 до 2000 (соответственно от 0% до 20%). |
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* @returns {Transaction} |
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* @throws {Error} |
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* @example |
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* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
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* trx.setFeePercent(100) |
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*/ |
393
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setFeePercent (percent) { |
394
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1 |
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this.checkVersion([2, 3]) |
395
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1 |
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validator.validateInt(percent, 0, 2000) |
396
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1 |
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array.arraySet(this._bytes, converter.uint16ToBytes(percent), 39) |
397
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1 |
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return this |
398
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} |
399
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/** |
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* Проверить транзакцию на соответствие формальным правилам. |
402
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* @returns {boolean} |
403
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* @throws {Error} |
404
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* @example |
405
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* let ver = new Transaction().verify() |
406
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*/ |
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verify () { |
408
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1 |
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return this.getSender().getPublicKey().verifySignature(this.getSignature(), this._bytes.slice(0, 85)) |
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} |
410
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411
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/** |
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* @param {number[]} versions |
413
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* @throws {Error} |
414
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* @private |
415
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*/ |
416
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checkVersion (versions) { |
417
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18 |
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for (let i = 0, l = versions.length; i < l; i++) { |
418
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25 |
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if (versions[i] === this.getVersion()) { |
419
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17 |
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return |
420
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} |
421
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} |
422
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1 |
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throw new Error('invalid version') |
423
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} |
424
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} |
425
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/** |
426
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* Genesis-транзакция.\ |
427
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* Может быть добавлена только в Genesis-блок.\ |
428
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* Адрес отправителя должен иметь префикс genesis, адрес получателя - umi. |
429
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* @type {number} |
430
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* @constant |
431
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* @example |
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* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
433
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* let sender = Address.fromKey(secKey).setPrefix('genesis') |
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* let recipient = Address.fromKey(secKey).setPrefix('umi') |
435
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* let tx = new Transaction() |
436
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* .setVersion(Transaction.Genesis) |
437
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* .setSender(sender) |
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* .setRecipient(recipient) |
439
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* .setValue(42) |
440
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* .sign(secKey) |
441
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*/ |
442
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1 |
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Transaction.Genesis = 0 |
443
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/** |
444
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* Стандартная транзакция. Перевод монет из одного кошелька в другой. |
445
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* @type {number} |
446
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* @constant |
447
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* @example |
448
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* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
449
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* let sender = Address.fromKey(secKey).setPrefix('umi') |
450
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* let recipient = Address.fromKey(secKey).setPrefix('aaa') |
451
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* let tx = new Transaction() |
452
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* .setVersion(Transaction.Basic) |
453
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* .setSender(sender) |
454
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* .setRecipient(recipient) |
455
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* .setValue(42) |
456
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* .sign(secKey) |
457
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*/ |
458
|
1 |
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Transaction.Basic = 1 |
459
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/** |
460
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* Создание новой структуры. |
461
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* @type {number} |
462
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* @constant |
463
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* @example |
464
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* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
465
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* let sender = Address.fromKey(secKey).setPrefix('umi') |
466
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* let tx = new Transaction() |
467
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* .setVersion(Transaction.CreateStructure) |
468
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* .setSender(sender) |
469
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* .setPrefix('aaa') |
470
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* .setName('My Struct 🙂') |
471
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* .setProfitPercent(100) |
472
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* .setFeePercent(0) |
473
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* .sign(secKey) |
474
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*/ |
475
|
1 |
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Transaction.CreateStructure = 2 |
476
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/** |
477
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* Обновление настроек существующей структуры. |
478
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* @type {number} |
479
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* @constant |
480
|
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* @example |
481
|
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* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
482
|
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* let sender = Address.fromKey(secKey).setPrefix('umi') |
483
|
|
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* let tx = new Transaction() |
484
|
|
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* .setVersion(Transaction.UpdateStructure) |
485
|
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* .setSender(sender) |
486
|
|
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* .setPrefix('aaa') |
487
|
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* .setName('My New Struct 😎') |
488
|
|
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* .setProfitPercent(500) |
489
|
|
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* .setFeePercent(2000) |
490
|
|
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* .sign(secKey) |
491
|
|
|
*/ |
492
|
1 |
|
Transaction.UpdateStructure = 3 |
493
|
|
|
/** |
494
|
|
|
* Изменение адреса для начисления профита. |
495
|
|
|
* @type {number} |
496
|
|
|
* @constant |
497
|
|
|
* @example |
498
|
|
|
* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
499
|
|
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* let sender = Address.fromKey(secKey).setPrefix('umi') |
500
|
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* let newPrf = Address.fromBech32('aaa18d4z00xwk6jz6c4r4rgz5mcdwdjny9thrh3y8f36cpy2rz6emg5svsuw66') |
501
|
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* let tx = new Transaction() |
502
|
|
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* .setVersion(Transaction.UpdateProfitAddress) |
503
|
|
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* .setSender(sender) |
504
|
|
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* .setRecipient(newPrf) |
505
|
|
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* .sign(secKey) |
506
|
|
|
*/ |
507
|
1 |
|
Transaction.UpdateProfitAddress = 4 |
508
|
|
|
/** |
509
|
|
|
* Изменение адреса на который переводится комиссия. |
510
|
|
|
* @type {number} |
511
|
|
|
* @constant |
512
|
|
|
* @example |
513
|
|
|
* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
514
|
|
|
* let sender = Address.fromKey(secKey).setPrefix('umi') |
515
|
|
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* let newFee = Address.fromBech32('aaa18d4z00xwk6jz6c4r4rgz5mcdwdjny9thrh3y8f36cpy2rz6emg5svsuw66') |
516
|
|
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* let tx = new Transaction() |
517
|
|
|
* .setVersion(Transaction.UpdateFeeAddress) |
518
|
|
|
* .setSender(sender) |
519
|
|
|
* .setRecipient(newFee) |
520
|
|
|
* .sign(secKey) |
521
|
|
|
*/ |
522
|
1 |
|
Transaction.UpdateFeeAddress = 5 |
523
|
|
|
/** |
524
|
|
|
* Активация транзитного адреса. |
525
|
|
|
* @type {number} |
526
|
|
|
* @constant |
527
|
|
|
* @example |
528
|
|
|
* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
529
|
|
|
* let sender = Address.fromKey(secKey).setPrefix('umi') |
530
|
|
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* let transit = Address.fromBech32('aaa18d4z00xwk6jz6c4r4rgz5mcdwdjny9thrh3y8f36cpy2rz6emg5svsuw66') |
531
|
|
|
* let tx = new Transaction() |
532
|
|
|
* .setVersion(Transaction.CreateTransitAddress) |
533
|
|
|
* .setSender(sender) |
534
|
|
|
* .setRecipient(transit) |
535
|
|
|
* .sign(secKey) |
536
|
|
|
*/ |
537
|
1 |
|
Transaction.CreateTransitAddress = 6 |
538
|
|
|
/** |
539
|
|
|
* Деактивация транзитного адреса. |
540
|
|
|
* @type {number} |
541
|
|
|
* @constant |
542
|
|
|
* @example |
543
|
|
|
* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
544
|
|
|
* let sender = Address.fromKey(secKey).setPrefix('umi') |
545
|
|
|
* let transit = Address.fromBech32('aaa18d4z00xwk6jz6c4r4rgz5mcdwdjny9thrh3y8f36cpy2rz6emg5svsuw66') |
546
|
|
|
* let tx = new Transaction() |
547
|
|
|
* .setVersion(Transaction.DeleteTransitAddress) |
548
|
|
|
* .setSender(sender) |
549
|
|
|
* .setRecipient(transit) |
550
|
|
|
* .sign(secKey) |
551
|
|
|
*/ |
552
|
1 |
|
Transaction.DeleteTransitAddress = 7 |
553
|
|
|
|
554
|
|
|
exports.Transaction = Transaction |
555
|
|
|
|