multichain-address-validator
Version:
Multichain address validator for Bitcoin and other blockchains.
51 lines (50 loc) • 1.6 kB
JavaScript
import cryptoUtils from '../crypto/utils.js';
import bech32 from '../crypto/bech32.js';
import { NetworkType } from '../types.js';
import BTCValidator from './bitcoin_validator.js';
import { getAddress } from '../helpers.js';
function validateAddress(address, opts) {
const regexp = new RegExp(opts.regexp);
let raw_address;
const res = address.split(':');
if (res.length === 1) {
raw_address = address;
}
else {
if (res[0] !== 'bitcoincash') {
return false;
}
raw_address = res[1];
}
if (!regexp.test(raw_address)) {
return false;
}
if (raw_address.toLowerCase() != raw_address && raw_address.toUpperCase() != raw_address) {
return false;
}
const decoded = cryptoUtils.base32.b32decode(raw_address);
const prefix = opts.networkType === NetworkType.MainNet
? 'bitcoincash'
: 'bchtest';
try {
if (bech32.verifyChecksum(prefix, decoded, bech32.encodings.BECH32)) {
return false;
}
}
catch (e) {
return false;
}
return true;
}
const DefaultBCHValidatorOpts = {
// addressTypes: {mainnet: ['00', '05'], testnet: ['6f', 'c4', '3c', '26']},
// bech32Hrp: {mainnet: ['bc'], testnet: ['tb']},
regexp: /^[qQpP][0-9a-zA-Z]{41}$/,
};
export default (opts) => ({
isValidAddress: function (address) {
const addr = getAddress(address);
const _opts = { ...DefaultBCHValidatorOpts, ...opts };
return validateAddress(addr, _opts) || BTCValidator(opts).isValidAddress(address);
}
});