vue-tronlink
Version:
Vue support for the TronLink browser extension
34 lines (33 loc) • 1.25 kB
JavaScript
import { keccak256 } from "../../utils/ethersUtils";
class Address {
static isHexAddress(address) {
if (!/^(0x)?[0-9a-f]{42}$/i.test(address)) {
return false;
}
else if (/^(0x)?[0-9a-f]{42}$/.test(address) || /^(0x)?[0-9A-F]{42}$/.test(address)) {
return true;
}
else {
return this.isChecksumHexAddress(address);
}
}
static isChecksumHexAddress(address) {
address = address.replace("0x", "");
const addressHash = Address.sha3(address.toLowerCase());
for (let i = 0; i < 40; i++) {
if ((parseInt(addressHash[i], 16) > 7 && address[i].toUpperCase() !== address[i])
|| (parseInt(addressHash[i], 16) <= 7 && address[i].toLowerCase() !== address[i])) {
return false;
}
}
return true;
}
static sha3(stringf, prefix = true) {
return (prefix ? '0x' : '') + keccak256(Buffer.from(stringf, 'utf-8')).toString().substring(2);
}
}
const ADDRESS_SIZE = 34;
const ADDRESS_PREFIX = "41";
const ADDRESS_PREFIX_BYTE = 0x41;
const ADDRESS_PREFIX_REGEX = /^(41)/;
export { ADDRESS_SIZE, ADDRESS_PREFIX, ADDRESS_PREFIX_BYTE, ADDRESS_PREFIX_REGEX, Address };