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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 PublicKey = require('../key/ed25519/PublicKey.js') |
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const converter = require('../util/converter.js') |
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const bech32 = require('../util/bech32.js') |
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/** |
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* Класс для работы с адресами. |
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* @class |
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*/ |
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class Address { |
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/** |
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* @example |
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* let address = new Address() |
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*/ |
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constructor () { |
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/** |
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* Адрес в бинарном виде, длина 34 байта. |
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* @type {number[]} |
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* @private |
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*/ |
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this._bytes = array.arrayNew(34) |
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this.setPrefix('umi') |
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} |
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/** |
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* Статический метод, создает объект из адреса в формате Bech32. |
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* @param {string} bech32 Адрес в формате Bech32, длина 62 или 65 символов. |
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* @returns {Address} |
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* @throws {Error} |
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* @example |
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* let address = Address.fromBech32('umi18d4z00xwk6jz6c4r4rgz5mcdwdjny9thrh3y8f36cpy2rz6emg5s6rxnf6') |
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*/ |
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static fromBech32 (bech32$1) { |
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const adr = new Address() |
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array.arraySet(adr._bytes, bech32.bech32Decode(bech32$1)) |
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return adr |
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} |
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/** |
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* Статический метод, создает объект из бинарного представления. |
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* @param {ArrayLike<number>} bytes Адрес в бинарном виде, длина 34 байта. |
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* @returns {Address} |
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* @throws {Error} |
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* @example |
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* let address = Address.fromBytes(new Uint8Array(34)) |
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*/ |
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static fromBytes (bytes) { |
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if (bytes.length !== 34) { |
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throw new Error('length must be 34 bytes') |
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} |
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const adr = new Address() |
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array.arraySet(adr._bytes, bytes) |
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return adr |
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} |
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/** |
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* Статический метод, создает объект из публичного или приватного ключа. |
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* @param {(PublicKey|SecretKey)} key Публичный или приватный ключ. |
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* @returns {Address} |
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* @example |
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* let secKey = SecretKey.fromSeed([]) |
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* let address = Address.fromKey(secKey) |
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*/ |
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static fromKey (key) { |
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return new Address().setPublicKey(key.getPublicKey()) |
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} |
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/** |
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* Адрес в формате Bech32, длина 62 или 65 символов. |
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* @returns {string} |
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* @example |
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* let bech32 = new Address().getBech32() |
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*/ |
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getBech32 () { |
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return bech32.bech32Encode(this._bytes) |
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} |
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/** |
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* Адрес в бинарном виде, длина 34 байта. |
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* @returns {number[]} |
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* @example |
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* let bytes = new Address().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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* Префикс адреса, три символа латиницы в нижнем регистре. |
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* @returns {string} |
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* @throws {Error} |
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* @example |
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* let prefix = new Address().getPrefix() |
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*/ |
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getPrefix () { |
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return converter.versionToPrefix(converter.bytesToUint16(this._bytes.slice(0, 2))) |
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} |
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/** |
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* Устанавливает префикс адреса и возвращает this. |
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* @param {string} prefix Префикс адреса, три символа латиницы в нижнем регистре. |
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* @returns {Address} |
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* @throws {Error} |
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* @example |
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* let address = new Address().setPrefix('umi') |
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*/ |
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setPrefix (prefix) { |
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array.arraySet(this._bytes, converter.uint16ToBytes(converter.prefixToVersion(prefix))) |
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return this |
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} |
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/** |
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* Публичный ключ. |
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* @returns {PublicKey} |
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* @example |
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* let pubKey = new Address().getPublicKey() |
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*/ |
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getPublicKey () { |
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return new PublicKey.PublicKey(this._bytes.slice(2)) |
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} |
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/** |
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* Устанавливает публичный ключ и возвращает this. |
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* @param {PublicKey} publicKey Публичный ключ. |
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* @returns {Address} |
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* @throws {Error} |
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* @example |
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* let pubKey = SecretKey.fromSeed([]).getPublicKey() |
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* let address = new Address().setPublicKey(pubKey) |
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*/ |
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setPublicKey (publicKey) { |
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array.arraySet(this._bytes, publicKey.getBytes(), 2) |
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return this |
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} |
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} |
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exports.Address = Address |
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umi-top /
umi-core-js
