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Текущая директория: /var/www/bitcardoApp/node_modules/tronweb/lib/esm/utils
Просмотр файла: address.js
import { hexStr2byteArray, byteArray2hexStr } from './code.js';
import { decodeBase58Address, getBase58CheckAddress, isAddressValid, pkToAddress } from './crypto.js';
import { isHex, isString } from './validations.js';
import { keccak256 } from './ethersUtils.js';
import { ADDRESS_PREFIX } from './constants.js';
export function fromHex(address) {
if (!isHex(address))
return address;
return getBase58CheckAddress(hexStr2byteArray(address.replace(/^0x/, ADDRESS_PREFIX)));
}
export function toHex(address) {
if (isHex(address))
return address.toLowerCase().replace(/^0x/, ADDRESS_PREFIX);
return byteArray2hexStr(decodeBase58Address(address)).toLowerCase();
}
function getChecksumAddress(address) {
address = address.toLowerCase();
const chars = address.substring(2).split('');
const expanded = new Uint8Array(40);
for (let i = 0; i < 40; i++) {
expanded[i] = chars[i].charCodeAt(0);
}
const hashed = hexStr2byteArray(keccak256(expanded).slice(2));
for (let i = 0; i < 40; i += 2) {
if ((hashed[i >> 1] >> 4) >= 8) {
chars[i] = chars[i].toUpperCase();
}
if ((hashed[i >> 1] & 0x0f) >= 8) {
chars[i + 1] = chars[i + 1].toUpperCase();
}
}
return ADDRESS_PREFIX + chars.join('');
}
export function toChecksumAddress(address) {
if (!isAddress(address))
throw new Error(`'${address}' is not a valid address string`);
return getChecksumAddress(toHex(address));
}
export function isChecksumAddress(address) {
if (!isHex(address) || address.length !== 42)
return false;
try {
return toChecksumAddress(address) === address;
}
catch {
return false;
}
}
export function fromPrivateKey(privateKey, strict = false) {
try {
return pkToAddress(privateKey, strict);
}
catch {
return false;
}
}
export function isAddress(address) {
if (!address || !isString(address))
return false;
// Convert HEX to Base58
if (address.length === 42) {
try {
// it throws an error if the address starts with 0x
return isAddress(getBase58CheckAddress(hexStr2byteArray(address)));
}
catch (err) {
return false;
}
}
try {
return isAddressValid(address);
}
catch (err) {
return false;
}
}
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