MyCrypto/common/libs/validators.js

72 lines
2.1 KiB
JavaScript

// @flow
import WalletAddressValidator from 'wallet-address-validator';
import { normalise } from './ens';
import { toChecksumAddress } from 'ethereumjs-util';
export function isValidETHAddress(address: string): boolean {
if (!address) {
return false;
}
if (address == '0x0000000000000000000000000000000000000000') return false;
return validateEtherAddress(address);
}
export function isValidBTCAddress(address: string): boolean {
return WalletAddressValidator.validate(address, 'BTC');
}
export function isValidHex(str: string): boolean {
if (typeof str !== 'string') {
return false;
}
if (str === '') return true;
str = str.substring(0, 2) == '0x' ? str.substring(2).toUpperCase() : str.toUpperCase();
var re = /^[0-9A-F]+$/g;
return re.test(str);
}
export function isValidENSorEtherAddress(address: string): boolean {
return isValidETHAddress(address) || isValidENSAddress(address);
}
export function isValidENSName(str: string) {
try {
return str.length > 6 && normalise(str) != '' && str.substring(0, 2) != '0x';
} catch (e) {
return false;
}
}
export function isValidENSAddress(address: string): boolean {
try {
const normalized = normalise(address);
var tld = normalized.substr(normalized.lastIndexOf('.') + 1);
var validTLDs = {
eth: true,
test: true,
reverse: true
};
if (validTLDs[tld]) return true;
} catch (e) {
return false;
}
return false;
}
function isChecksumAddress(address: string): boolean {
return address == toChecksumAddress(address);
}
// FIXME we probably want to do checksum checks sideways
function validateEtherAddress(address: string): boolean {
if (address.substring(0, 2) != '0x') return false;
else if (!/^(0x)?[0-9a-f]{40}$/i.test(address)) return false;
else if (/^(0x)?[0-9a-f]{40}$/.test(address) || /^(0x)?[0-9A-F]{40}$/.test(address))
return true;
else return isChecksumAddress(address);
}
export function isValidPrivKey(length: number): boolean {
return length === 64 || length === 128 || length === 132;
}