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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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2 |
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this.checkVersion([2, 3]) |
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1 |
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array.arraySet(this._bytes, converter.uint16ToBytes(converter.prefixToVersion(prefix)), 35) |
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1 |
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return this |
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} |
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297
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298
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/** |
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299
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* Название структуры в кодировке UTF-8.\ |
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300
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* Доступно только для CreateStructure и UpdateStructure. |
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* @returns {string} |
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302
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* @throws {Error} |
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303
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* @example |
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304
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* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
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* let name = trx.getName() |
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306
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*/ |
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307
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getName () { |
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308
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2 |
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this.checkVersion([2, 3]) |
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309
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2 |
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if (this._bytes[41] > 35) { |
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310
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1 |
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throw new Error('invalid length') |
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311
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} |
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312
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1 |
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return text.textDecode(this._bytes.slice(42, 42 + this._bytes[41])) |
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313
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|
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} |
|
314
|
|
|
|
|
315
|
|
|
/** |
|
316
|
|
|
* Устанавливает название структуры и возвращает this.\ |
|
317
|
|
|
* Доступно только для CreateStructure и UpdateStructure. |
|
318
|
|
|
* @param {string} name Название структуры в кодировке UTF-8. |
|
319
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|
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* @returns {Transaction} |
|
320
|
|
|
* @throws {Error} |
|
321
|
|
|
* @example |
|
322
|
|
|
* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
|
323
|
|
|
* trx.setName('Hello World') |
|
324
|
|
|
*/ |
|
325
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|
|
setName (name) { |
|
326
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2 |
|
this.checkVersion([2, 3]) |
|
327
|
2 |
|
const bytes = text.textEncode(name) |
|
328
|
2 |
|
if (bytes.length > 35) { |
|
329
|
1 |
|
throw new Error('name is too long') |
|
330
|
|
|
} |
|
331
|
1 |
|
array.arraySet(this._bytes, array.arrayNew(36), 41) |
|
332
|
1 |
|
array.arraySet(this._bytes, bytes, 42) |
|
333
|
1 |
|
this._bytes[41] = bytes.length |
|
334
|
1 |
|
return this |
|
335
|
|
|
} |
|
336
|
|
|
|
|
337
|
|
|
/** |
|
338
|
|
|
* Профита в сотых долях процента с шагом в 0.01%.\ |
|
339
|
|
|
* Принимает значения от 100 до 500 (соответственно от 1% до 5%).\ |
|
340
|
|
|
* Доступно только для CreateStructure и UpdateStructure. |
|
341
|
|
|
* @returns {number} |
|
342
|
|
|
* @example |
|
343
|
|
|
* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
|
344
|
|
|
* let profit = trx.getProfitPercent(100) |
|
345
|
|
|
*/ |
|
346
|
|
|
getProfitPercent () { |
|
347
|
1 |
|
this.checkVersion([2, 3]) |
|
348
|
1 |
|
return converter.bytesToUint16(this._bytes.slice(37, 39)) |
|
349
|
|
|
} |
|
350
|
|
|
|
|
351
|
|
|
/** |
|
352
|
|
|
* Устанавливает процент профита и возвращает this.\ |
|
353
|
|
|
* Доступно только для CreateStructure и UpdateStructure. |
|
354
|
|
|
* @param {number} percent Профит в сотых долях процента с шагом в 0.01%. |
|
355
|
|
|
* Принимает значения от 100 до 500 (соответственно от 1% до 5%). |
|
356
|
|
|
* @returns {Transaction} |
|
357
|
|
|
* @throws {Error} |
|
358
|
|
|
* @example |
|
359
|
|
|
* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
|
360
|
|
|
* trx.setProfitPercent(100) |
|
361
|
|
|
*/ |
|
362
|
|
|
setProfitPercent (percent) { |
|
363
|
2 |
|
this.checkVersion([2, 3]) |
|
364
|
2 |
|
validator.validateInt(percent, 100, 500) |
|
365
|
1 |
|
array.arraySet(this._bytes, converter.uint16ToBytes(percent), 37) |
|
366
|
1 |
|
return this |
|
367
|
|
|
} |
|
368
|
|
|
|
|
369
|
|
|
/** |
|
370
|
|
|
* Комиссия в сотых долях процента с шагом в 0.01%.\ |
|
371
|
|
|
* Принимает значения от 0 до 2000 (соответственно от 0% до 20%).\ |
|
372
|
|
|
* Доступно только для CreateStructure и UpdateStructure. |
|
373
|
|
|
* @returns {number} |
|
374
|
|
|
* @example |
|
375
|
|
|
* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
|
376
|
|
|
* let fee = trx.getFeePercent() |
|
377
|
|
|
*/ |
|
378
|
|
|
getFeePercent () { |
|
379
|
1 |
|
this.checkVersion([2, 3]) |
|
380
|
1 |
|
return converter.bytesToUint16(this._bytes.slice(39, 41)) |
|
381
|
|
|
} |
|
382
|
|
|
|
|
383
|
|
|
/** |
|
384
|
|
|
* Устанавливает размер комиссии и возвращает this.\ |
|
385
|
|
|
* Доступно только для CreateStructure и UpdateStructure. |
|
386
|
|
|
* @param {number} percent Комиссия в сотых долях процента с шагом в 0.01%. Принимает значения от 0 до 2000 (соответственно от 0% до 20%). |
|
387
|
|
|
* @returns {Transaction} |
|
388
|
|
|
* @throws {Error} |
|
389
|
|
|
* @example |
|
390
|
|
|
* let trx = new Transaction().setVersion(Transaction.CreateStructure) |
|
391
|
|
|
* trx.setFeePercent(100) |
|
392
|
|
|
*/ |
|
393
|
|
|
setFeePercent (percent) { |
|
394
|
1 |
|
this.checkVersion([2, 3]) |
|
395
|
1 |
|
validator.validateInt(percent, 0, 2000) |
|
396
|
1 |
|
array.arraySet(this._bytes, converter.uint16ToBytes(percent), 39) |
|
397
|
1 |
|
return this |
|
398
|
|
|
} |
|
399
|
|
|
|
|
400
|
|
|
/** |
|
401
|
|
|
* Проверить транзакцию на соответствие формальным правилам. |
|
402
|
|
|
* @returns {boolean} |
|
403
|
|
|
* @throws {Error} |
|
404
|
|
|
* @example |
|
405
|
|
|
* let ver = new Transaction().verify() |
|
406
|
|
|
*/ |
|
407
|
|
|
verify () { |
|
408
|
1 |
|
return this.getSender().getPublicKey().verifySignature(this.getSignature(), this._bytes.slice(0, 85)) |
|
409
|
|
|
} |
|
410
|
|
|
|
|
411
|
|
|
/** |
|
412
|
|
|
* @param {number[]} versions |
|
413
|
|
|
* @throws {Error} |
|
414
|
|
|
* @private |
|
415
|
|
|
*/ |
|
416
|
|
|
checkVersion (versions) { |
|
417
|
18 |
|
for (let i = 0, l = versions.length; i < l; i++) { |
|
418
|
25 |
|
if (versions[i] === this.getVersion()) { |
|
419
|
17 |
|
return |
|
420
|
|
|
} |
|
421
|
|
|
} |
|
422
|
1 |
|
throw new Error('invalid version') |
|
423
|
|
|
} |
|
424
|
|
|
} |
|
425
|
|
|
/** |
|
426
|
|
|
* Genesis-транзакция.\ |
|
427
|
|
|
* Может быть добавлена только в Genesis-блок.\ |
|
428
|
|
|
* Адрес отправителя должен иметь префикс genesis, адрес получателя - umi. |
|
429
|
|
|
* @type {number} |
|
430
|
|
|
* @constant |
|
431
|
|
|
* @example |
|
432
|
|
|
* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
|
433
|
|
|
* let sender = Address.fromKey(secKey).setPrefix('genesis') |
|
434
|
|
|
* let recipient = Address.fromKey(secKey).setPrefix('umi') |
|
435
|
|
|
* let tx = new Transaction() |
|
436
|
|
|
* .setVersion(Transaction.Genesis) |
|
437
|
|
|
* .setSender(sender) |
|
438
|
|
|
* .setRecipient(recipient) |
|
439
|
|
|
* .setValue(42) |
|
440
|
|
|
* .sign(secKey) |
|
441
|
|
|
*/ |
|
442
|
1 |
|
Transaction.Genesis = 0 |
|
443
|
|
|
/** |
|
444
|
|
|
* Стандартная транзакция. Перевод монет из одного кошелька в другой. |
|
445
|
|
|
* @type {number} |
|
446
|
|
|
* @constant |
|
447
|
|
|
* @example |
|
448
|
|
|
* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
|
449
|
|
|
* let sender = Address.fromKey(secKey).setPrefix('umi') |
|
450
|
|
|
* let recipient = Address.fromKey(secKey).setPrefix('aaa') |
|
451
|
|
|
* let tx = new Transaction() |
|
452
|
|
|
* .setVersion(Transaction.Basic) |
|
453
|
|
|
* .setSender(sender) |
|
454
|
|
|
* .setRecipient(recipient) |
|
455
|
|
|
* .setValue(42) |
|
456
|
|
|
* .sign(secKey) |
|
457
|
|
|
*/ |
|
458
|
1 |
|
Transaction.Basic = 1 |
|
459
|
|
|
/** |
|
460
|
|
|
* Создание новой структуры. |
|
461
|
|
|
* @type {number} |
|
462
|
|
|
* @constant |
|
463
|
|
|
* @example |
|
464
|
|
|
* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
|
465
|
|
|
* let sender = Address.fromKey(secKey).setPrefix('umi') |
|
466
|
|
|
* let tx = new Transaction() |
|
467
|
|
|
* .setVersion(Transaction.CreateStructure) |
|
468
|
|
|
* .setSender(sender) |
|
469
|
|
|
* .setPrefix('aaa') |
|
470
|
|
|
* .setName('My Struct 🙂') |
|
471
|
|
|
* .setProfitPercent(100) |
|
472
|
|
|
* .setFeePercent(0) |
|
473
|
|
|
* .sign(secKey) |
|
474
|
|
|
*/ |
|
475
|
1 |
|
Transaction.CreateStructure = 2 |
|
476
|
|
|
/** |
|
477
|
|
|
* Обновление настроек существующей структуры. |
|
478
|
|
|
* @type {number} |
|
479
|
|
|
* @constant |
|
480
|
|
|
* @example |
|
481
|
|
|
* let secKey = SecretKey.fromSeed(new Uint8Array(32)) |
|
482
|
|
|
* let sender = Address.fromKey(secKey).setPrefix('umi') |
|
483
|
|
|
* let tx = new Transaction() |
|
484
|
|
|
* .setVersion(Transaction.UpdateStructure) |
|
485
|
|
|
* .setSender(sender) |
|
486
|
|
|
* .setPrefix('aaa') |
|
487
|
|
|
* .setName('My New Struct 😎') |
|
488
|
|
|
* .setProfitPercent(500) |
|
489
|
|
|
* .setFeePercent(2000) |
|
490
|
|
|
* .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
|
|
|
* let sender = Address.fromKey(secKey).setPrefix('umi') |
|
500
|
|
|
* let newPrf = Address.fromBech32('aaa18d4z00xwk6jz6c4r4rgz5mcdwdjny9thrh3y8f36cpy2rz6emg5svsuw66') |
|
501
|
|
|
* let tx = new Transaction() |
|
502
|
|
|
* .setVersion(Transaction.UpdateProfitAddress) |
|
503
|
|
|
* .setSender(sender) |
|
504
|
|
|
* .setRecipient(newPrf) |
|
505
|
|
|
* .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
|
|
|
* let newFee = Address.fromBech32('aaa18d4z00xwk6jz6c4r4rgz5mcdwdjny9thrh3y8f36cpy2rz6emg5svsuw66') |
|
516
|
|
|
* 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
|
|
|
* 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
|
|
|
|