312 lines
14 KiB
TypeScript
312 lines
14 KiB
TypeScript
import { ContractWrappersError, ECSignature, ExchangeContractErrs, ZeroEx } from '0x.js';
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import { OrderError } from '@0xproject/order-utils';
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import { constants as sharedConstants, EtherscanLinkSuffixes, Networks } from '@0xproject/react-shared';
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import { Provider } from '@0xproject/types';
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import { BigNumber } from '@0xproject/utils';
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import deepEqual = require('deep-equal');
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import * as _ from 'lodash';
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import * as moment from 'moment';
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import {
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BlockchainCallErrs,
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Environments,
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Order,
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Providers,
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ScreenWidths,
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Side,
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SideToAssetToken,
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Token,
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TokenByAddress,
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} from 'ts/types';
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import { configs } from 'ts/utils/configs';
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import { constants } from 'ts/utils/constants';
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import * as u2f from 'ts/vendor/u2f_api';
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const LG_MIN_EM = 64;
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const MD_MIN_EM = 52;
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export const utils = {
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assert(condition: boolean, message: string) {
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if (!condition) {
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throw new Error(message);
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}
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},
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spawnSwitchErr(name: string, value: any) {
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return new Error(`Unexpected switch value: ${value} encountered for ${name}`);
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},
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isNumeric(n: string) {
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return !isNaN(parseFloat(n)) && isFinite(Number(n));
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},
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// This default unix timestamp is used for orders where the user does not specify an expiry date.
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// It is a fixed constant so that both the redux store's INITIAL_STATE and components can check for
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// whether a user has set an expiry date or not. It is set unrealistically high so as not to collide
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// with actual values a user would select.
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initialOrderExpiryUnixTimestampSec(): BigNumber {
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const m = moment('2050-01-01');
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return new BigNumber(m.unix());
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},
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convertToUnixTimestampSeconds(date: moment.Moment, time?: moment.Moment): BigNumber {
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const finalMoment = date;
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if (!_.isUndefined(time)) {
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finalMoment.hours(time.hours());
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finalMoment.minutes(time.minutes());
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}
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return new BigNumber(finalMoment.unix());
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},
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convertToMomentFromUnixTimestamp(unixTimestampSec: BigNumber): moment.Moment {
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return moment.unix(unixTimestampSec.toNumber());
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},
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convertToReadableDateTimeFromUnixTimestamp(unixTimestampSec: BigNumber): string {
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const m = this.convertToMomentFromUnixTimestamp(unixTimestampSec);
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const formattedDate: string = m.format('h:MMa MMMM D YYYY');
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return formattedDate;
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},
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generateOrder(
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exchangeContractAddress: string,
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sideToAssetToken: SideToAssetToken,
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expirationUnixTimestampSec: BigNumber,
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orderTakerAddress: string,
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orderMakerAddress: string,
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makerFee: BigNumber,
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takerFee: BigNumber,
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feeRecipient: string,
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ecSignature: ECSignature,
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tokenByAddress: TokenByAddress,
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orderSalt: BigNumber,
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): Order {
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const makerToken = tokenByAddress[sideToAssetToken[Side.Deposit].address];
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const takerToken = tokenByAddress[sideToAssetToken[Side.Receive].address];
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const order = {
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signedOrder: {
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maker: orderMakerAddress,
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taker: orderTakerAddress,
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makerFee: makerFee.toString(),
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takerFee: takerFee.toString(),
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makerTokenAmount: sideToAssetToken[Side.Deposit].amount.toString(),
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takerTokenAmount: sideToAssetToken[Side.Receive].amount.toString(),
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makerTokenAddress: makerToken.address,
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takerTokenAddress: takerToken.address,
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expirationUnixTimestampSec: expirationUnixTimestampSec.toString(),
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feeRecipient,
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salt: orderSalt.toString(),
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ecSignature,
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exchangeContractAddress,
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},
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metadata: {
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makerToken: {
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name: makerToken.name,
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symbol: makerToken.symbol,
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decimals: makerToken.decimals,
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},
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takerToken: {
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name: takerToken.name,
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symbol: takerToken.symbol,
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decimals: takerToken.decimals,
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},
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},
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};
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return order;
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},
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async sleepAsync(ms: number) {
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return new Promise(resolve => setTimeout(resolve, ms));
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},
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deepEqual(actual: any, expected: any, opts?: { strict: boolean }) {
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return deepEqual(actual, expected, opts);
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},
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getColSize(items: number) {
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const bassCssGridSize = 12; // Source: http://basscss.com/#basscss-grid
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const colSize = bassCssGridSize / items;
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if (!_.isInteger(colSize)) {
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throw new Error(`Number of cols must be divisible by ${bassCssGridSize}`);
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}
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return colSize;
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},
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getScreenWidth() {
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const documentEl = document.documentElement;
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const body = document.getElementsByTagName('body')[0];
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const widthInPx = window.innerWidth || documentEl.clientWidth || body.clientWidth;
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const bodyStyles: any = window.getComputedStyle(document.querySelector('body'));
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const widthInEm = widthInPx / parseFloat(bodyStyles['font-size']);
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// This logic mirrors the CSS media queries in BassCSS for the `lg-`, `md-` and `sm-` CSS
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// class prefixes. Do not edit these.
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if (widthInEm > LG_MIN_EM) {
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return ScreenWidths.Lg;
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} else if (widthInEm > MD_MIN_EM) {
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return ScreenWidths.Md;
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} else {
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return ScreenWidths.Sm;
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}
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},
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async isU2FSupportedAsync(): Promise<boolean> {
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const w = window as any;
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return new Promise((resolve: (isSupported: boolean) => void) => {
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if (w.u2f && !w.u2f.getApiVersion) {
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// u2f object was found (Firefox with extension)
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resolve(true);
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} else {
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// u2f object was not found. Using Google polyfill
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// HACK: u2f.getApiVersion will simply not return a version if the
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// U2F call fails for any reason. Because of this, we set a hard 3sec
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// timeout to the request on our end.
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const getApiVersionTimeoutMs = 3000;
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const intervalId = setTimeout(() => {
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resolve(false);
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}, getApiVersionTimeoutMs);
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u2f.getApiVersion((version: number) => {
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clearTimeout(intervalId);
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resolve(true);
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});
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}
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});
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},
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// This checks the error message returned from an injected Web3 instance on the page
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// after a user was prompted to sign a message or send a transaction and decided to
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// reject the request.
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didUserDenyWeb3Request(errMsg: string) {
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const metamaskDenialErrMsg = 'User denied';
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const paritySignerDenialErrMsg = 'Request has been rejected';
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const ledgerDenialErrMsg = 'Invalid status 6985';
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const isUserDeniedErrMsg =
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_.includes(errMsg, metamaskDenialErrMsg) ||
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_.includes(errMsg, paritySignerDenialErrMsg) ||
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_.includes(errMsg, ledgerDenialErrMsg);
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return isUserDeniedErrMsg;
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},
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getCurrentEnvironment() {
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switch (location.host) {
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case configs.DOMAIN_DEVELOPMENT:
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return 'development';
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case configs.DOMAIN_STAGING:
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return 'staging';
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case configs.DOMAIN_PRODUCTION:
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return 'production';
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default:
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return 'production';
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}
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},
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getAddressBeginAndEnd(address: string): string {
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const truncatedAddress = `${address.substring(0, 6)}...${address.substr(-4)}`; // 0x3d5a...b287
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return truncatedAddress;
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},
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hasUniqueNameAndSymbol(tokens: Token[], token: Token) {
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if (token.isRegistered) {
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return true; // Since it's registered, it is the canonical token
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}
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const registeredTokens = _.filter(tokens, t => t.isRegistered);
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const tokenWithSameNameIfExists = _.find(registeredTokens, {
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name: token.name,
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});
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const isUniqueName = _.isUndefined(tokenWithSameNameIfExists);
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const tokenWithSameSymbolIfExists = _.find(registeredTokens, {
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name: token.symbol,
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});
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const isUniqueSymbol = _.isUndefined(tokenWithSameSymbolIfExists);
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return isUniqueName && isUniqueSymbol;
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},
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zeroExErrToHumanReadableErrMsg(error: ContractWrappersError | ExchangeContractErrs, takerAddress: string): string {
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const ContractWrappersErrorToHumanReadableError: { [error: string]: string } = {
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[ContractWrappersError.ExchangeContractDoesNotExist]: 'Exchange contract does not exist',
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[ContractWrappersError.EtherTokenContractDoesNotExist]: 'EtherToken contract does not exist',
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[ContractWrappersError.TokenTransferProxyContractDoesNotExist]:
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'TokenTransferProxy contract does not exist',
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[ContractWrappersError.TokenRegistryContractDoesNotExist]: 'TokenRegistry contract does not exist',
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[ContractWrappersError.TokenContractDoesNotExist]: 'Token contract does not exist',
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[ContractWrappersError.ZRXContractDoesNotExist]: 'ZRX contract does not exist',
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[BlockchainCallErrs.UserHasNoAssociatedAddresses]: 'User has no addresses available',
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[OrderError.InvalidSignature]: 'Order signature is not valid',
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[ContractWrappersError.ContractNotDeployedOnNetwork]: 'Contract is not deployed on the detected network',
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[ContractWrappersError.InvalidJump]: 'Invalid jump occured while executing the transaction',
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[ContractWrappersError.OutOfGas]: 'Transaction ran out of gas',
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};
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const exchangeContractErrorToHumanReadableError: {
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[error: string]: string;
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} = {
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[ExchangeContractErrs.OrderFillExpired]: 'This order has expired',
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[ExchangeContractErrs.OrderCancelExpired]: 'This order has expired',
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[ExchangeContractErrs.OrderCancelAmountZero]: "Order cancel amount can't be 0",
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[ExchangeContractErrs.OrderAlreadyCancelledOrFilled]:
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'This order has already been completely filled or cancelled',
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[ExchangeContractErrs.OrderFillAmountZero]: "Order fill amount can't be 0",
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[ExchangeContractErrs.OrderRemainingFillAmountZero]:
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'This order has already been completely filled or cancelled',
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[ExchangeContractErrs.OrderFillRoundingError]:
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'Rounding error will occur when filling this order. Please try filling a different amount.',
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[ExchangeContractErrs.InsufficientTakerBalance]:
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'Taker no longer has a sufficient balance to complete this order',
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[ExchangeContractErrs.InsufficientTakerAllowance]:
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'Taker no longer has a sufficient allowance to complete this order',
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[ExchangeContractErrs.InsufficientMakerBalance]:
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'Maker no longer has a sufficient balance to complete this order',
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[ExchangeContractErrs.InsufficientMakerAllowance]:
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'Maker no longer has a sufficient allowance to complete this order',
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[ExchangeContractErrs.InsufficientTakerFeeBalance]: 'Taker no longer has a sufficient balance to pay fees',
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[ExchangeContractErrs.InsufficientTakerFeeAllowance]:
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'Taker no longer has a sufficient allowance to pay fees',
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[ExchangeContractErrs.InsufficientMakerFeeBalance]: 'Maker no longer has a sufficient balance to pay fees',
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[ExchangeContractErrs.InsufficientMakerFeeAllowance]:
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'Maker no longer has a sufficient allowance to pay fees',
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[ExchangeContractErrs.TransactionSenderIsNotFillOrderTaker]: `This order can only be filled by ${takerAddress}`,
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[ExchangeContractErrs.InsufficientRemainingFillAmount]: 'Insufficient remaining fill amount',
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};
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const humanReadableErrorMsg =
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exchangeContractErrorToHumanReadableError[error] || ContractWrappersErrorToHumanReadableError[error];
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return humanReadableErrorMsg;
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},
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isParityNode(nodeVersion: string): boolean {
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return _.includes(nodeVersion, 'Parity');
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},
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isTestRpc(nodeVersion: string): boolean {
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return _.includes(nodeVersion, 'TestRPC');
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},
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isTestNetwork(networkId: number): boolean {
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const isTestNetwork = _.includes(
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[
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sharedConstants.NETWORK_ID_BY_NAME[Networks.Kovan],
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sharedConstants.NETWORK_ID_BY_NAME[Networks.Rinkeby],
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sharedConstants.NETWORK_ID_BY_NAME[Networks.Ropsten],
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],
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networkId,
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);
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return isTestNetwork;
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},
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getCurrentBaseUrl() {
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const port = window.location.port;
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const hasPort = !_.isUndefined(port);
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const baseUrl = `https://${window.location.hostname}${hasPort ? `:${port}` : ''}`;
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return baseUrl;
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},
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async onPageLoadAsync(): Promise<void> {
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if (document.readyState === 'complete') {
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return; // Already loaded
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}
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return new Promise<void>((resolve, reject) => {
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window.onload = () => resolve();
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});
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},
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getProviderType(provider: Provider): Providers | string {
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const constructorName = provider.constructor.name;
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let parsedProviderName = constructorName;
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switch (constructorName) {
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case 'EthereumProvider':
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parsedProviderName = Providers.Mist;
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break;
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default:
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parsedProviderName = constructorName;
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break;
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}
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if ((provider as any).isParity) {
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parsedProviderName = Providers.Parity;
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} else if ((provider as any).isMetaMask) {
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parsedProviderName = Providers.Metamask;
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}
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return parsedProviderName;
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},
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isDevelopment() {
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return configs.ENVIRONMENT === Environments.DEVELOPMENT;
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},
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isStaging() {
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return _.includes(window.location.href, configs.DOMAIN_STAGING);
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},
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};
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