openethereum/js/packages/abi/util/address.js
Jaco Greeff 49fdd23d58 Ui 2 move to packages/* (#6113)
* Move secureApi to shell

* Extract isTestnet test

* Use mobx + subscriptions for status

* Re-add status indicator

* Add lerna

* Move intial packages to js/packages

* Move 3rdparty/{email,sms}-verification to correct location

* Move package.json & README to library src

* Move tests for library packages

* Move views & dapps to packages

* Move i18n to root

* Move shell to actual src (main app)

* Remove ~ references

* Change ~ to root (explicit imports)

* Finalise convert of ~

* Move views into dapps as well

* Move dapps to packages/

* Fix references

* Update css

* Update test spec locations

* Update tests

* Case fix

* Skip flakey tests

* Update enzyme

* Skip previously ignored tests

* Allow empty api for hw

* Re-add theme for embed
2017-07-21 15:46:53 +02:00

67 lines
1.9 KiB
JavaScript

// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
import { keccak_256 } from 'js-sha3'; // eslint-disable-line camelcase
export function isChecksumValid (_address) {
const address = _address.replace('0x', '');
const hash = keccak_256(address.toLowerCase());
for (let n = 0; n < 40; n++) {
const char = address[n];
const isLower = char !== char.toUpperCase();
const isUpper = char !== char.toLowerCase();
const hashval = parseInt(hash[n], 16);
if ((hashval > 7 && isLower) || (hashval <= 7 && isUpper)) {
return false;
}
}
return true;
}
export function isAddress (address) {
if (address && address.length === 42) {
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}$/.test(address)) {
return true;
}
return isChecksumValid(address);
}
return false;
}
export function toChecksumAddress (_address) {
const address = (_address || '').toLowerCase();
if (!isAddress(address)) {
return '';
}
const hash = keccak_256(address.slice(-40));
let result = '0x';
for (let n = 0; n < 40; n++) {
result = `${result}${parseInt(hash[n], 16) > 7 ? address[n + 2].toUpperCase() : address[n + 2]}`;
}
return result;
}