@ledgerhq/coin-stellar
Version:
Ledger Stellar Coin integration
52 lines • 1.97 kB
JavaScript
import { BigNumber } from "bignumber.js";
import { StrKey } from "@stellar/stellar-sdk";
import { findSubAccountById } from "@ledgerhq/coin-framework/account/helpers";
import { fetchSigners } from "../network";
export const STELLAR_BURN_ADDRESS = "GAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAWHF";
export const getAssetIdFromAsset = (asset) => `${asset.asset_code}:${asset.asset_issuer}`;
export function getAmountValue(account, transaction, fees) {
// Asset
if (transaction.subAccountId) {
const asset = findSubAccountById(account, transaction.subAccountId);
if (!asset) {
throw new Error(`Sub-account with ID ${transaction.subAccountId} not found`);
}
return transaction.useAllAmount
? new BigNumber(asset.spendableBalance.toString())
: transaction.amount;
}
// Native
return transaction.useAllAmount && transaction.networkInfo
? BigNumber.max(new BigNumber(account.spendableBalance.toString()).minus(fees), 0)
: transaction.amount;
}
export function getAssetCodeIssuer(tr) {
if (tr.subAccountId) {
const assetString = tr.subAccountId.split("+")[1];
return assetString.split(":");
}
return [tr.assetReference || "", tr.assetOwner || ""];
}
export async function isAccountMultiSign(account) {
const signers = await fetchSigners(account);
return signers.length > 1;
}
/**
* Returns true if address is valid, false if it's invalid (can't parse or wrong checksum)
*
* @param {*} address
*/
export function isAddressValid(address) {
if (!address)
return false;
// FIXME Workaround for burn address, see https://ledgerhq.atlassian.net/browse/LIVE-4014
if (address === STELLAR_BURN_ADDRESS)
return false;
try {
return StrKey.isValidEd25519PublicKey(address) || StrKey.isValidMed25519PublicKey(address);
}
catch {
return false;
}
}
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