Differential D12616 Diff 36630 web/cashtab/src/utils/cashMethods.js

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web/cashtab/src/utils/cashMethods.js

import { currency } from 'components/Common/Ticker';		import { currency } from 'components/Common/Ticker';
import {		import {
isValidXecAddress,		isValidXecAddress,
isValidEtokenAddress,		isValidEtokenAddress,
isValidContactList,		isValidContactList,
isValidBchAddress,		isValidBchAddress,
} from 'utils/validation';		} from 'utils/validation';
import BigNumber from 'bignumber.js';		import BigNumber from 'bignumber.js';
import cashaddr from 'ecashaddrjs';		import cashaddr from 'ecashaddrjs';
import bs58 from 'bs58';		import bs58 from 'bs58';
import * as slpMdm from 'slp-mdm';		import * as slpMdm from 'slp-mdm';
		import Bitcoin from '@psf/bitcoincashjs-lib';
		import coininfo from 'utils/coininfo';

// function is based on BCH-JS' generateBurnOpReturn() however it's been trimmed down for Cashtab use		// function is based on BCH-JS' generateBurnOpReturn() however it's been trimmed down for Cashtab use
// Reference: https://github.com/Permissionless-Software-Foundation/bch-js/blob/62e56c832b35731880fe448269818b853c76dd80/src/slp/tokentype1.js#L217		// Reference: https://github.com/Permissionless-Software-Foundation/bch-js/blob/62e56c832b35731880fe448269818b853c76dd80/src/slp/tokentype1.js#L217
export const generateBurnOpReturn = (tokenUtxos, burnQty) => {		export const generateBurnOpReturn = (tokenUtxos, burnQty) => {
try {		try {
if (!tokenUtxos \|\| !burnQty) {		if (!tokenUtxos \|\| !burnQty) {
throw new Error('Invalid burn token parameter');		throw new Error('Invalid burn token parameter');
} // sendToken component already prevents burning of a value greater than the token utxo total held by the wallet		} // sendToken component already prevents burning of a value greater than the token utxo total held by the wallet
▲ Show 20 Lines • Show All 116 Lines • ▼ Show 20 Lines	export const getUtxoWif = (utxo, wallet) => {
}		}
const accounts = [wallet.Path245, wallet.Path145, wallet.Path1899];		const accounts = [wallet.Path245, wallet.Path145, wallet.Path1899];
const wif = accounts		const wif = accounts
.filter(acc => acc.cashAddress === utxo.address)		.filter(acc => acc.cashAddress === utxo.address)
.pop().fundingWif;		.pop().fundingWif;
return wif;		return wif;
};		};

		// Reference https://github.com/Permissionless-Software-Foundation/bch-js/blob/master/src/ecpair.js#L24
		// Modified for mainnet only
		export const getECPairFromWIF = wif => {
		let xec = coininfo.bitcoincash.main;
		const xecBitcoinJSLib = xec.toBitcoinJS();

		return Bitcoin.ECPair.fromWIF(wif, xecBitcoinJSLib);
		};

export const signUtxosByAddress = (BCH, inputUtxos, wallet, txBuilder) => {		export const signUtxosByAddress = (BCH, inputUtxos, wallet, txBuilder) => {
for (let i = 0; i < inputUtxos.length; i++) {		for (let i = 0; i < inputUtxos.length; i++) {
const utxo = inputUtxos[i];		const utxo = inputUtxos[i];
const accounts = [wallet.Path245, wallet.Path145, wallet.Path1899];		const accounts = [wallet.Path245, wallet.Path145, wallet.Path1899];
const utxoEcPair = BCH.ECPair.fromWIF(
accounts.filter(acc => acc.cashAddress === utxo.address).pop()		const wif = accounts
.fundingWif,		.filter(acc => acc.cashAddress === utxo.address)
);		.pop().fundingWif;

		console.log(`wif`, wif);

		const utxoEcPair = BCH.ECPair.fromWIF(wif);

		const localUtxoEcPair = getECPairFromWIF(wif);

		console.log(`utxoEcPair`, utxoEcPair);
		console.log(`localUtxoEcPair`, localUtxoEcPair);

		console.log(`stringified`, JSON.stringify(utxoEcPair));

		if (JSON.stringify(utxoEcPair) === JSON.stringify(localUtxoEcPair)) {
		console.log(`local method matches legacy method`);
		}

txBuilder.sign(		txBuilder.sign(
i,		i,
utxoEcPair,		utxoEcPair,
undefined,		undefined,
txBuilder.hashTypes.SIGHASH_ALL,		txBuilder.hashTypes.SIGHASH_ALL,
parseInt(utxo.value),		parseInt(utxo.value),
);		);
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