661 lines
22 KiB
TypeScript
661 lines
22 KiB
TypeScript
import erc20 from 'libs/erc20';
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import BN from 'bn.js';
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import EthTx from 'ethereumjs-tx';
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import { bufferToHex } from 'ethereumjs-util';
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import { Address, Wei, TokenValue, Nonce, getDecimalFromEtherUnit } from 'libs/units';
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import {
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EAC_SCHEDULING_CONFIG,
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EAC_ADDRESSES,
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calcEACEndowment,
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getSchedulerAddress,
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getScheduleData,
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getValidateRequestParamsData
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} from 'libs/scheduling';
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import { makeTransaction, getTransactionFields, IHexStrTransaction } from 'libs/transaction';
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import { stripHexPrefixAndLower } from 'libs/formatters';
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import { SecureWalletName, WalletName, getAddressMessage, AddressMessage } from 'config';
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import { Token } from 'types/network';
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import { ICurrentTo, ICurrentValue, IGetTransaction } from './types';
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import { AppState } from './reducers';
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import { addressBookSelectors } from './addressBook';
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import { walletTypes, walletSelectors } from './wallet';
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import { ratesSelectors } from './rates';
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import { customTokensSelectors } from './customTokens';
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import { scheduleSelectors, scheduleHelpers } from './schedule';
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import { transactionsSelectors } from './transactions';
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import { SavedTransaction } from 'types/transactions';
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import * as configMetaSelectors from './config/meta/selectors';
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import * as configSelectors from './config/selectors';
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import * as transactionSelectors from './transaction/selectors';
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import * as transactionFieldsSelectors from './transaction/fields/selectors';
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import * as transactionMetaSelectors from './transaction/meta/selectors';
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import * as transactionSignTypes from './transaction/sign/types';
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import * as transactionSignSelectors from './transaction/sign/selectors';
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import { reduceToValues, isFullTx } from './helpers';
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export const isAnyOfflineWithWeb3 = (state: AppState): boolean => {
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const { isWeb3Wallet } = walletSelectors.getWalletType(state);
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const offline = configMetaSelectors.getOffline(state);
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return offline && isWeb3Wallet;
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};
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// TODO: Convert to reselect selector (Issue #884)
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export function getDisabledWallets(state: AppState): any {
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const network = configSelectors.getNetworkConfig(state);
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const isOffline = configMetaSelectors.getOffline(state);
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const disabledWallets: any = {
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wallets: [],
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reasons: {}
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};
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const addReason = (wallets: WalletName[], reason: string) => {
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if (!wallets.length) {
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return;
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}
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disabledWallets.wallets = disabledWallets.wallets.concat(wallets);
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wallets.forEach(wallet => {
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disabledWallets.reasons[wallet] = reason;
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});
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};
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// Some wallets don't support some networks
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addReason(
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configSelectors.unSupportedWalletFormatsOnNetwork(state),
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`This wallet doesn’t support the ${network.name} network`
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);
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// Some wallets are unavailable offline
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if (isOffline) {
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addReason(
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[SecureWalletName.WEB3, SecureWalletName.TREZOR],
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'This wallet cannot be accessed offline'
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);
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}
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// Some wallets are disabled on certain platforms
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if (process.env.BUILD_ELECTRON) {
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addReason([SecureWalletName.WEB3], 'This wallet is not supported in the MyCrypto app');
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}
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// Dedupe and sort for consistency
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disabledWallets.wallets = disabledWallets.wallets
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.filter((name: string, idx: number) => disabledWallets.wallets.indexOf(name) === idx)
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.sort();
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return disabledWallets;
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}
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export function getTokens(state: AppState): walletTypes.MergedToken[] {
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const network = configSelectors.getStaticNetworkConfig(state);
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const tokens: Token[] = network ? network.tokens : [];
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return tokens.concat(
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state.customTokens.map((token: Token) => {
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const mergedToken = { ...token, custom: true };
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return mergedToken;
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})
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) as walletTypes.MergedToken[];
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}
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export function getWalletConfigTokens(state: AppState): walletTypes.MergedToken[] {
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const tokens = getTokens(state);
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const config = walletSelectors.getWalletConfig(state);
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if (!config || !config.tokens) {
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return [];
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}
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return config.tokens
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.map(symbol => tokens.find(t => t.symbol === symbol))
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.filter(token => token) as walletTypes.MergedToken[];
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}
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export const getToken = (state: AppState, unit: string): walletTypes.MergedToken | undefined => {
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const tokens = getTokens(state);
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const token = tokens.find(t => t.symbol === unit);
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return token;
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};
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export function getTokenBalances(
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state: AppState,
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nonZeroOnly: boolean = false
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): walletTypes.TokenBalance[] {
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const tokens = getTokens(state);
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if (!tokens) {
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return [];
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}
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const ret = tokens.map(t => ({
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symbol: t.symbol,
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balance: state.wallet.tokens[t.symbol]
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? state.wallet.tokens[t.symbol].balance
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: TokenValue('0'),
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error: state.wallet.tokens[t.symbol] ? state.wallet.tokens[t.symbol].error : null,
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custom: t.custom,
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decimal: t.decimal
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}));
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return nonZeroOnly ? ret.filter(t => !t.balance.isZero()) : ret;
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}
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export const getTokenWithBalance = (state: AppState, unit: string): walletTypes.TokenBalance => {
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const tokens = getTokenBalances(state, false);
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const currentToken = tokens.filter(t => t.symbol === unit);
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//TODO: getting the first index is kinda hacky
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return currentToken[0];
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};
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export const getTokenBalance = (state: AppState, unit: string): TokenValue | null => {
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const token = getTokenWithBalance(state, unit);
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if (!token) {
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return token;
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}
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return token.balance;
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};
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export function getShownTokenBalances(
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state: AppState,
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nonZeroOnly: boolean = false
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): walletTypes.TokenBalance[] {
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const tokenBalances = getTokenBalances(state, nonZeroOnly);
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const walletConfig = walletSelectors.getWalletConfig(state);
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let walletTokens: string[] = [];
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if (walletConfig) {
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if (walletConfig.tokens) {
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walletTokens = walletConfig.tokens;
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}
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}
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return tokenBalances.filter(t => walletTokens.includes(t.symbol));
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}
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const getUSDConversionRate = (state: AppState, unit: string) => {
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const { isTestnet } = configSelectors.getNetworkConfig(state);
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const { rates } = ratesSelectors.getRates(state);
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if (isTestnet) {
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return null;
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}
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const conversionRate = rates[unit];
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if (!conversionRate) {
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return null;
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}
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return conversionRate.USD;
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};
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export const getValueInUSD = (state: AppState, value: TokenValue | Wei) => {
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const unit = getUnit(state);
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const conversionRate = getUSDConversionRate(state, unit);
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if (!conversionRate) {
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return null;
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}
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const sendValueUSD = value.muln(conversionRate);
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return sendValueUSD;
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};
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export const getTransactionFeeInUSD = (state: AppState, fee: Wei) => {
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const { unit } = configSelectors.getNetworkConfig(state);
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const conversionRate = getUSDConversionRate(state, unit);
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if (!conversionRate) {
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return null;
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}
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const feeValueUSD = fee.muln(conversionRate);
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return feeValueUSD;
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};
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export interface AllUSDValues {
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valueUSD: BN | null;
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feeUSD: BN | null;
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totalUSD: BN | null;
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}
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export const getAllUSDValuesFromSerializedTx = (state: AppState): AllUSDValues => {
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const fields = getParamsFromSerializedTx(state);
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if (!fields) {
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return {
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feeUSD: null,
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valueUSD: null,
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totalUSD: null
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};
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}
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const { currentValue, fee } = fields;
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const valueUSD = getValueInUSD(state, currentValue);
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const feeUSD = getTransactionFeeInUSD(state, fee);
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return {
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feeUSD,
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valueUSD,
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totalUSD: feeUSD && valueUSD ? valueUSD.add(feeUSD) : null
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};
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};
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export function getRecentNetworkTransactions(state: AppState): SavedTransaction[] {
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const txs = transactionsSelectors.getRecentTransactions(state);
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const network = configSelectors.getNetworkConfig(state);
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return txs.filter(tx => tx.chainId === network.chainId);
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}
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export function getRecentWalletTransactions(state: AppState): SavedTransaction[] {
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const networkTxs = getRecentNetworkTransactions(state);
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const wallet = walletSelectors.getWalletInst(state);
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if (wallet) {
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const addr = wallet.getAddressString().toLowerCase();
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return networkTxs.filter(tx => tx.from.toLowerCase() === addr);
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} else {
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return [];
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}
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}
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export const getSchedulingTransaction = (state: AppState): IGetTransaction => {
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const { isFullTransaction } = getTransaction(state);
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const currentTo = getCurrentTo(state);
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const currentValue = getCurrentValue(state);
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const nonce = transactionFieldsSelectors.getNonce(state);
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const gasPrice = transactionFieldsSelectors.getGasPrice(state);
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const timeBounty = scheduleSelectors.getTimeBounty(state);
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const scheduleGasPrice = scheduleSelectors.getScheduleGasPrice(state);
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const scheduleGasLimit = scheduleSelectors.getScheduleGasLimit(state);
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const scheduleType = scheduleSelectors.getScheduleType(state);
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const endowment = calcEACEndowment(
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scheduleGasLimit.value,
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currentValue.value,
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scheduleGasPrice.value,
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timeBounty.value
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);
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let transactionData = null;
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const transactionFullAndValid = isFullTransaction && isSchedulingTransactionValid(state);
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if (transactionFullAndValid) {
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const deposit = scheduleSelectors.getScheduleDeposit(state);
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const scheduleTimestamp = scheduleSelectors.getScheduleTimestamp(state);
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const windowSize = scheduleSelectors.getWindowSize(state);
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const callData = transactionFieldsSelectors.getData(state);
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const scheduleTimezone = scheduleSelectors.getScheduleTimezone(state);
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const windowStart = scheduleSelectors.getWindowStart(state);
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transactionData = getScheduleData(
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currentTo.raw,
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callData.raw,
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scheduleGasLimit.value,
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currentValue.value,
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scheduleHelpers.windowSizeBlockToMin(windowSize.value, scheduleType.value),
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scheduleHelpers.calculateWindowStart(
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scheduleType.value,
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scheduleTimestamp,
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scheduleTimezone.value,
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windowStart.value
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),
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scheduleGasPrice.value,
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timeBounty.value,
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deposit.value
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);
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}
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const transactionOptions = {
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to: getSchedulerAddress(scheduleType.value),
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data: transactionData,
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gasLimit: EAC_SCHEDULING_CONFIG.SCHEDULING_GAS_LIMIT,
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gasPrice: gasPrice.value,
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nonce: Nonce('0'),
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value: endowment
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};
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if (nonce) {
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transactionOptions.nonce = Nonce(nonce.raw);
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}
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const schedulingTransaction: EthTx = makeTransaction(transactionOptions);
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return {
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transaction: schedulingTransaction,
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isFullTransaction: transactionFullAndValid
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};
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};
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const isSchedulingTransactionValid = (state: AppState): boolean => {
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const schedulingState = scheduleSelectors.getScheduleState(state);
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const windowSizeValid = scheduleSelectors.isWindowSizeValid(state);
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const windowStartValid = scheduleHelpers.isWindowStartValid(
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schedulingState,
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configMetaSelectors.getLatestBlock(state)
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);
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const scheduleTimestampValid = scheduleHelpers.isScheduleTimestampValid(schedulingState);
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const scheduleGasPriceValid = scheduleSelectors.isValidScheduleGasPrice(state);
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const scheduleGasLimitValid = scheduleSelectors.isValidScheduleGasLimit(state);
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const depositValid = scheduleSelectors.isValidScheduleDeposit(state);
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const timeBountyValid = scheduleSelectors.isValidCurrentTimeBounty(state);
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// return true if all fields are valid
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return (
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// either windowStart or scheduleTimestamp is used for scheduling
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(windowStartValid || scheduleTimestampValid) &&
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windowSizeValid &&
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scheduleGasPriceValid &&
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scheduleGasLimitValid &&
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depositValid &&
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timeBountyValid
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);
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};
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export interface IGetValidateScheduleParamsCallPayload {
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to: string;
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data: string;
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}
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export const getValidateScheduleParamsCallPayload = (
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state: AppState
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): IGetValidateScheduleParamsCallPayload | undefined => {
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const wallet = walletSelectors.getWalletInst(state);
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const currentTo = getCurrentTo(state);
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const currentValue = getCurrentValue(state);
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const timeBounty = scheduleSelectors.getTimeBounty(state);
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const scheduleGasPrice = scheduleSelectors.getScheduleGasPrice(state);
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const scheduleGasLimit = scheduleSelectors.getScheduleGasLimit(state);
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const scheduleType = scheduleSelectors.getScheduleType(state);
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const deposit = scheduleSelectors.getScheduleDeposit(state);
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const scheduleTimestamp = scheduleSelectors.getScheduleTimestamp(state);
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const windowSize = scheduleSelectors.getWindowSize(state);
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const scheduleTimezone = scheduleSelectors.getScheduleTimezone(state);
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const windowStart = scheduleSelectors.getWindowStart(state);
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/*
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* Checks if any of these values are null or invalid
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* due to an user input.
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*/
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if (
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!currentValue.value ||
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!currentTo.value ||
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!scheduleGasPrice.value ||
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!wallet ||
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!windowSize.value ||
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// we need either windowStart or scheduleTimestamp for scheduling
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!(windowStart.value || scheduleTimestamp.value)
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) {
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return;
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}
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const callGasLimit = scheduleGasLimit.value || EAC_SCHEDULING_CONFIG.SCHEDULE_GAS_LIMIT_FALLBACK;
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const endowment = calcEACEndowment(
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callGasLimit,
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currentValue.value,
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scheduleGasPrice.value,
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timeBounty.value
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);
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const fromAddress = wallet.getAddressString();
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const data = getValidateRequestParamsData(
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bufferToHex(currentTo.value),
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callGasLimit,
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currentValue.value,
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scheduleHelpers.windowSizeBlockToMin(windowSize.value, scheduleType.value),
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scheduleHelpers.calculateWindowStart(
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scheduleType.value,
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scheduleTimestamp,
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scheduleTimezone.value,
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windowStart.value
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),
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scheduleGasPrice.value,
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timeBounty.value,
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deposit.value || Wei('0'),
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scheduleType.value === 'time',
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endowment,
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fromAddress
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);
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return {
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to: EAC_ADDRESSES.KOVAN.requestFactory,
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data
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};
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};
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export const isValidCurrentWindowStart = (state: AppState) => {
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const currentWindowStart = scheduleSelectors.getWindowStart(state);
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if (!currentWindowStart.value) {
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return false;
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}
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return currentWindowStart.value > parseInt(configMetaSelectors.getLatestBlock(state), 10);
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};
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export const isEtherTransaction = (state: AppState) => {
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const unit = getUnit(state);
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const etherUnit = configSelectors.isNetworkUnit(state, unit);
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return etherUnit;
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};
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export const getValidGasCost = (state: AppState) => {
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const gasCost = transactionSelectors.getGasCost(state);
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const etherBalance = walletSelectors.getEtherBalance(state);
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const isOffline = configMetaSelectors.getOffline(state);
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if (isOffline || !etherBalance) {
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return true;
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}
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return gasCost.lte(etherBalance);
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};
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export const getDecimalFromUnit = (state: AppState, unit: string) => {
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if (configSelectors.isNetworkUnit(state, unit)) {
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return getDecimalFromEtherUnit('ether');
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} else {
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const token = getToken(state, unit);
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if (!token) {
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throw Error(`Token ${unit} not found`);
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}
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return token.decimal;
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}
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};
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export const getCurrentTo = (state: AppState): ICurrentTo =>
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isEtherTransaction(state)
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? transactionFieldsSelectors.getTo(state)
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: transactionMetaSelectors.getTokenTo(state);
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export const getCurrentValue = (state: AppState): ICurrentValue =>
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isEtherTransaction(state)
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? transactionFieldsSelectors.getValue(state)
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: transactionMetaSelectors.getTokenValue(state);
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export const isValidCurrentTo = (state: AppState) => {
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const currentTo = getCurrentTo(state);
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const dataExists = transactionSelectors.getDataExists(state);
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if (isEtherTransaction(state)) {
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// if data exists the address can be 0x
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return !!currentTo.value || dataExists;
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} else {
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return !!currentTo.value;
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}
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};
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export const isCurrentToLabelEntry = (state: AppState): boolean => {
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const currentTo = getCurrentTo(state);
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return !currentTo.raw.startsWith('0x');
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};
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export function getCurrentToAddressMessage(state: AppState): AddressMessage | undefined {
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const to = getCurrentTo(state);
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return getAddressMessage(to.raw);
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}
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export const getUnit = (state: AppState) => {
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const serializedTransaction = getSerializedTransaction(state);
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const contractInteraction = transactionMetaSelectors.isContractInteraction(state);
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// attempt to get the to address from the transaction
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if (serializedTransaction && !contractInteraction) {
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const transactionInstance = new EthTx(serializedTransaction);
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const { to } = transactionInstance;
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if (to) {
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// see if any tokens match
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let networkTokens: null | Token[] = null;
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const customTokens = customTokensSelectors.getCustomTokens(state);
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const networkConfig = configSelectors.getNetworkConfig(state);
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if (!networkConfig.isCustom) {
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networkTokens = networkConfig.tokens;
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}
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const mergedTokens = networkTokens ? [...networkTokens, ...customTokens] : customTokens;
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const toChecksumAddress = configSelectors.getChecksumAddressFn(state);
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const stringTo = toChecksumAddress(stripHexPrefixAndLower(to.toString('hex')));
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const result = mergedTokens.find(t => t.address === stringTo);
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if (result) {
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return result.symbol;
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}
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}
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}
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return transactionMetaSelectors.getMetaState(state).unit;
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};
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export const signaturePending = (state: AppState) => {
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const { isHardwareWallet } = walletSelectors.getWalletType(state);
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const { pending } = state.transaction.sign;
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return { isHardwareWallet, isSignaturePending: pending };
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};
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export const getSerializedTransaction = (state: AppState) =>
|
||
walletSelectors.getWalletType(state).isWeb3Wallet
|
||
? transactionSignSelectors.getWeb3Tx(state)
|
||
: transactionSignSelectors.getSignedTx(state);
|
||
|
||
export const getParamsFromSerializedTx = (
|
||
state: AppState
|
||
): transactionSignTypes.SerializedTxParams => {
|
||
const tx = getSerializedTransaction(state);
|
||
const isEther = isEtherTransaction(state);
|
||
const decimal = transactionMetaSelectors.getDecimal(state);
|
||
|
||
if (!tx) {
|
||
throw Error('Serialized transaction not found');
|
||
}
|
||
const fields = getTransactionFields(makeTransaction(tx));
|
||
const { value, data, gasLimit, gasPrice, to } = fields;
|
||
const currentValue = isEther ? Wei(value) : TokenValue(erc20.transfer.decodeInput(data)._value);
|
||
const currentTo = isEther ? Address(to) : Address(erc20.transfer.decodeInput(data)._to);
|
||
const unit = getUnit(state);
|
||
const fee = Wei(gasLimit).mul(Wei(gasPrice));
|
||
const total = fee.add(Wei(value));
|
||
return { ...fields, currentValue, currentTo, fee, total, unit, decimal, isToken: !isEther };
|
||
};
|
||
|
||
export const getTransaction = (state: AppState): IGetTransaction => {
|
||
const currentTo = getCurrentTo(state);
|
||
const currentValue = getCurrentValue(state);
|
||
const transactionFields = transactionFieldsSelectors.getFields(state);
|
||
const unit = getUnit(state);
|
||
const reducedValues = reduceToValues(transactionFields);
|
||
const transaction: EthTx = makeTransaction(reducedValues);
|
||
const dataExists = transactionSelectors.getDataExists(state);
|
||
const validGasCost = getValidGasCost(state);
|
||
const isFullTransaction = isFullTx(
|
||
state,
|
||
transactionFields,
|
||
currentTo,
|
||
currentValue,
|
||
dataExists,
|
||
validGasCost,
|
||
unit
|
||
);
|
||
|
||
return { transaction, isFullTransaction };
|
||
};
|
||
|
||
export const nonStandardTransaction = (state: AppState): boolean => {
|
||
const etherTransaction = isEtherTransaction(state);
|
||
const { isFullTransaction } = getTransaction(state);
|
||
const dataExists = transactionSelectors.getDataExists(state);
|
||
return isFullTransaction && dataExists && etherTransaction;
|
||
};
|
||
|
||
export const serializedAndTransactionFieldsMatch = (state: AppState, isLocallySigned: boolean) => {
|
||
const serialzedTransaction = getSerializedTransaction(state);
|
||
const { transaction, isFullTransaction } = getTransaction(state);
|
||
if (!isFullTransaction || !serialzedTransaction) {
|
||
return false;
|
||
}
|
||
const t1 = getTransactionFields(transaction);
|
||
// inject chainId into t1 as it wont have it from the fields
|
||
const networkConfig = configSelectors.getNetworkConfig(state);
|
||
if (!networkConfig) {
|
||
return false;
|
||
}
|
||
const { chainId } = networkConfig;
|
||
t1.chainId = chainId;
|
||
|
||
const t2 = getTransactionFields(makeTransaction(serialzedTransaction));
|
||
const checkValidity = (tx: IHexStrTransaction) =>
|
||
Object.keys(tx).reduce(
|
||
(match, currField: keyof IHexStrTransaction) => match && t1[currField] === t2[currField],
|
||
true
|
||
);
|
||
//reduce both ways to make sure both are exact same
|
||
const transactionsMatch = checkValidity(t1) && checkValidity(t2);
|
||
// if its signed then verify the signature too
|
||
return transactionsMatch && isLocallySigned
|
||
? makeTransaction(serialzedTransaction).verifySignature()
|
||
: true;
|
||
};
|
||
|
||
export const getFrom = (state: AppState) => {
|
||
const serializedTransaction = getSerializedTransaction(state);
|
||
|
||
// attempt to get the from address from the transaction
|
||
if (serializedTransaction) {
|
||
const transactionInstance = new EthTx(serializedTransaction);
|
||
|
||
try {
|
||
const from = transactionInstance.from;
|
||
if (from) {
|
||
const toChecksumAddress = configSelectors.getChecksumAddressFn(state);
|
||
return toChecksumAddress(from.toString('hex'));
|
||
}
|
||
} catch (e) {
|
||
console.warn(e);
|
||
}
|
||
}
|
||
return transactionMetaSelectors.getMetaState(state).from;
|
||
};
|
||
|
||
export const getCurrentBalance = (state: AppState): Wei | TokenValue | null => {
|
||
const etherTransaction = isEtherTransaction(state);
|
||
if (etherTransaction) {
|
||
return walletSelectors.getEtherBalance(state);
|
||
} else {
|
||
const unit = getUnit(state);
|
||
return getTokenBalance(state, unit);
|
||
}
|
||
};
|
||
|
||
export function getSelectedTokenContractAddress(state: AppState): string {
|
||
const allTokens = configSelectors.getAllTokens(state);
|
||
const currentUnit = getUnit(state);
|
||
|
||
if (configSelectors.isNetworkUnit(state, currentUnit)) {
|
||
return '';
|
||
}
|
||
|
||
return allTokens.reduce((tokenAddr, tokenInfo) => {
|
||
if (tokenAddr && tokenAddr.length) {
|
||
return tokenAddr;
|
||
}
|
||
|
||
if (tokenInfo.symbol === currentUnit) {
|
||
return tokenInfo.address;
|
||
}
|
||
|
||
return tokenAddr;
|
||
}, '');
|
||
}
|
||
|
||
export function getCurrentToLabel(state: AppState) {
|
||
const addresses = addressBookSelectors.getAddressLabels(state);
|
||
const currentTo = getCurrentTo(state);
|
||
|
||
return addresses[currentTo.raw.toLowerCase()] || null;
|
||
}
|