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1766 lines
66 KiB
1766 lines
66 KiB
import { createAsyncThunk, createSlice } from '@reduxjs/toolkit';
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import abi from 'human-standard-token-abi';
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import contractMap from '@metamask/contract-metadata';
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import BigNumber from 'bignumber.js';
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import { addHexPrefix, toChecksumAddress } from 'ethereumjs-util';
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import { debounce } from 'lodash';
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import {
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conversionGreaterThan,
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conversionUtil,
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multiplyCurrencies,
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subtractCurrencies,
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} from '../../../shared/modules/conversion.utils';
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import { GAS_ESTIMATE_TYPES, GAS_LIMITS } from '../../../shared/constants/gas';
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import {
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CONTRACT_ADDRESS_ERROR,
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INSUFFICIENT_FUNDS_ERROR,
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INSUFFICIENT_TOKENS_ERROR,
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INVALID_RECIPIENT_ADDRESS_ERROR,
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INVALID_RECIPIENT_ADDRESS_NOT_ETH_NETWORK_ERROR,
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KNOWN_RECIPIENT_ADDRESS_WARNING,
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MIN_GAS_LIMIT_HEX,
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NEGATIVE_ETH_ERROR,
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} from '../../pages/send/send.constants';
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import {
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addGasBuffer,
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calcGasTotal,
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generateTokenTransferData,
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isBalanceSufficient,
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isTokenBalanceSufficient,
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} from '../../pages/send/send.utils';
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import {
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getAddressBookEntry,
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getAdvancedInlineGasShown,
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getCurrentChainId,
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getGasPriceInHexWei,
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getIsMainnet,
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getSelectedAddress,
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getTargetAccount,
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getIsNonStandardEthChain,
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checkNetworkAndAccountSupports1559,
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} from '../../selectors';
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import {
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disconnectGasFeeEstimatePoller,
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displayWarning,
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estimateGas,
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getGasFeeEstimatesAndStartPolling,
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hideLoadingIndication,
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showConfTxPage,
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showLoadingIndication,
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updateTokenType,
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updateTransaction,
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addPollingTokenToAppState,
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removePollingTokenFromAppState,
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} from '../../store/actions';
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import { setCustomGasLimit } from '../gas/gas.duck';
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import {
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QR_CODE_DETECTED,
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SELECTED_ACCOUNT_CHANGED,
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ACCOUNT_CHANGED,
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ADDRESS_BOOK_UPDATED,
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GAS_FEE_ESTIMATES_UPDATED,
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} from '../../store/actionConstants';
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import {
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calcTokenAmount,
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getTokenAddressParam,
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getTokenValueParam,
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} from '../../helpers/utils/token-util';
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import {
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checkExistingAddresses,
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isDefaultMetaMaskChain,
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isOriginContractAddress,
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isValidDomainName,
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} from '../../helpers/utils/util';
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import {
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getGasEstimateType,
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getTokens,
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getUnapprovedTxs,
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} from '../metamask/metamask';
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import { resetEnsResolution } from '../ens';
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import {
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isBurnAddress,
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isValidHexAddress,
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} from '../../../shared/modules/hexstring-utils';
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import { CHAIN_ID_TO_GAS_LIMIT_BUFFER_MAP } from '../../../shared/constants/network';
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import { ETH, GWEI } from '../../helpers/constants/common';
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import { TRANSACTION_ENVELOPE_TYPES } from '../../../shared/constants/transaction';
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// typedefs
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/**
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* @typedef {import('@reduxjs/toolkit').PayloadAction} PayloadAction
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*/
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const name = 'send';
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/**
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* The Stages that the send slice can be in
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* 1. INACTIVE - The send state is idle, and hasn't yet fetched required
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* data for gasPrice and gasLimit estimations, etc.
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* 2. ADD_RECIPIENT - The user is selecting which address to send an asset to
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* 3. DRAFT - The send form is shown for a transaction yet to be sent to the
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* Transaction Controller.
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* 4. EDIT - The send form is shown for a transaction already submitted to the
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* Transaction Controller but not yet confirmed. This happens when a
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* confirmation is shown for a transaction and the 'edit' button in the header
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* is clicked.
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*/
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export const SEND_STAGES = {
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INACTIVE: 'INACTIVE',
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ADD_RECIPIENT: 'ADD_RECIPIENT',
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DRAFT: 'DRAFT',
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EDIT: 'EDIT',
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};
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/**
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* The status that the send slice can be in is either
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* 1. VALID - the transaction is valid and can be submitted
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* 2. INVALID - the transaction is invalid and cannot be submitted
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*
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* A number of cases would result in an invalid form
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* 1. The recipient is not yet defined
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* 2. The amount + gasTotal is greater than the user's balance when sending
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* native currency
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* 3. The gasTotal is greater than the user's *native* balance
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* 4. The amount of sent asset is greater than the user's *asset* balance
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* 5. Gas price estimates failed to load entirely
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* 6. The gasLimit is less than 21000 (0x5208)
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*/
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export const SEND_STATUSES = {
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VALID: 'VALID',
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INVALID: 'INVALID',
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};
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/**
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* Controls what is displayed in the send-gas-row component.
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* 1. BASIC - Shows the basic estimate slow/avg/fast buttons when on mainnet
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* and the metaswaps API request is successful.
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* 2. INLINE - Shows inline gasLimit/gasPrice fields when on any other network
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* or metaswaps API fails and we use eth_gasPrice
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* 3. CUSTOM - Shows GasFeeDisplay component that is a read only display of the
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* values the user has set in the advanced gas modal (stored in the gas duck
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* under the customData key).
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*/
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export const GAS_INPUT_MODES = {
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BASIC: 'BASIC',
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INLINE: 'INLINE',
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CUSTOM: 'CUSTOM',
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};
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/**
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* The types of assets that a user can send
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* 1. NATIVE - The native asset for the current network, such as ETH
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* 2. TOKEN - An ERC20 token.
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*/
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export const ASSET_TYPES = {
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NATIVE: 'NATIVE',
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TOKEN: 'TOKEN',
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};
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/**
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* The modes that the amount field can be set by
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* 1. INPUT - the user provides the amount by typing in the field
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* 2. MAX - The user selects the MAX button and amount is calculated based on
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* balance - (amount + gasTotal)
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*/
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export const AMOUNT_MODES = {
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INPUT: 'INPUT',
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MAX: 'MAX',
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};
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export const RECIPIENT_SEARCH_MODES = {
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MY_ACCOUNTS: 'MY_ACCOUNTS',
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CONTACT_LIST: 'CONTACT_LIST',
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};
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async function estimateGasLimitForSend({
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selectedAddress,
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value,
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gasPrice,
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sendToken,
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to,
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data,
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isNonStandardEthChain,
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chainId,
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...options
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}) {
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let isSimpleSendOnNonStandardNetwork = false;
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// blockGasLimit may be a falsy, but defined, value when we receive it from
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// state, so we use logical or to fall back to MIN_GAS_LIMIT_HEX. Some
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// network implementations check the gas parameter supplied to
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// eth_estimateGas for validity. For this reason, we set token sends
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// blockGasLimit default to a higher number. Note that the current gasLimit
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// on a BLOCK is 15,000,000 and will be 30,000,000 on mainnet after London.
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// Meanwhile, MIN_GAS_LIMIT_HEX is 0x5208.
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let blockGasLimit = MIN_GAS_LIMIT_HEX;
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if (options.blockGasLimit) {
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blockGasLimit = options.blockGasLimit;
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} else if (sendToken) {
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blockGasLimit = GAS_LIMITS.BASE_TOKEN_ESTIMATE;
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}
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// The parameters below will be sent to our background process to estimate
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// how much gas will be used for a transaction. That background process is
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// located in tx-gas-utils.js in the transaction controller folder.
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const paramsForGasEstimate = { from: selectedAddress, value, gasPrice };
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if (sendToken) {
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if (!to) {
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// if no to address is provided, we cannot generate the token transfer
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// hexData. hexData in a transaction largely dictates how much gas will
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// be consumed by a transaction. We must use our best guess, which is
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// represented in the gas shared constants.
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return GAS_LIMITS.BASE_TOKEN_ESTIMATE;
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}
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paramsForGasEstimate.value = '0x0';
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// We have to generate the erc20 contract call to transfer tokens in
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// order to get a proper estimate for gasLimit.
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paramsForGasEstimate.data = generateTokenTransferData({
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toAddress: to,
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amount: value,
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sendToken,
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});
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paramsForGasEstimate.to = sendToken.address;
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} else {
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if (!data) {
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// eth.getCode will return the compiled smart contract code at the
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// address. If this returns 0x, 0x0 or a nullish value then the address
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// is an externally owned account (NOT a contract account). For these
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// types of transactions the gasLimit will always be 21,000 or 0x5208
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const contractCode = Boolean(to) && (await global.eth.getCode(to));
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// Geth will return '0x', and ganache-core v2.2.1 will return '0x0'
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const contractCodeIsEmpty =
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!contractCode || contractCode === '0x' || contractCode === '0x0';
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if (contractCodeIsEmpty && !isNonStandardEthChain) {
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return GAS_LIMITS.SIMPLE;
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} else if (contractCodeIsEmpty && isNonStandardEthChain) {
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isSimpleSendOnNonStandardNetwork = true;
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}
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}
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paramsForGasEstimate.data = data;
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if (to) {
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paramsForGasEstimate.to = to;
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}
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if (!value || value === '0') {
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// TODO: Figure out what's going on here. According to eth_estimateGas
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// docs this value can be zero, or undefined, yet we are setting it to a
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// value here when the value is undefined or zero. For more context:
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// https://github.com/MetaMask/metamask-extension/pull/6195
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paramsForGasEstimate.value = '0xff';
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}
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}
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if (!isSimpleSendOnNonStandardNetwork) {
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// If we do not yet have a gasLimit, we must call into our background
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// process to get an estimate for gasLimit based on known parameters.
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paramsForGasEstimate.gas = addHexPrefix(
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multiplyCurrencies(blockGasLimit, 0.95, {
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multiplicandBase: 16,
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multiplierBase: 10,
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roundDown: '0',
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toNumericBase: 'hex',
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}),
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);
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}
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// The buffer multipler reduces transaction failures by ensuring that the
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// estimated gas is always sufficient. Without the multiplier, estimates
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// for contract interactions can become inaccurate over time. This is because
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// gas estimation is non-deterministic. The gas required for the exact same
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// transaction call can change based on state of a contract or changes in the
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// contracts environment (blockchain data or contracts it interacts with).
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// Applying the 1.5 buffer has proven to be a useful guard against this non-
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// deterministic behaviour.
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//
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// Gas estimation of simple sends should, however, be deterministic. As such
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// no buffer is needed in those cases.
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let bufferMultiplier = 1.5;
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if (isSimpleSendOnNonStandardNetwork) {
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bufferMultiplier = 1;
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} else if (CHAIN_ID_TO_GAS_LIMIT_BUFFER_MAP[chainId]) {
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bufferMultiplier = CHAIN_ID_TO_GAS_LIMIT_BUFFER_MAP[chainId];
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}
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try {
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// call into the background process that will simulate transaction
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// execution on the node and return an estimate of gasLimit
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const estimatedGasLimit = await estimateGas(paramsForGasEstimate);
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const estimateWithBuffer = addGasBuffer(
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estimatedGasLimit,
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blockGasLimit,
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bufferMultiplier,
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);
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return addHexPrefix(estimateWithBuffer);
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} catch (error) {
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const simulationFailed =
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error.message.includes('Transaction execution error.') ||
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error.message.includes(
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'gas required exceeds allowance or always failing transaction',
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);
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if (simulationFailed) {
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const estimateWithBuffer = addGasBuffer(
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paramsForGasEstimate.gas,
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blockGasLimit,
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1.5,
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);
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return addHexPrefix(estimateWithBuffer);
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}
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throw error;
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}
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}
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export async function getERC20Balance(token, accountAddress) {
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const contract = global.eth.contract(abi).at(token.address);
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const usersToken = (await contract.balanceOf(accountAddress)) ?? null;
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if (!usersToken) {
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return '0x0';
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}
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const amount = calcTokenAmount(
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usersToken.balance.toString(),
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token.decimals,
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).toString(16);
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return addHexPrefix(amount);
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}
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// After modification of specific fields in specific circumstances we must
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// recompute the gasLimit estimate to be as accurate as possible. the cases
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// that necessitate this logic are listed below:
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// 1. when the amount sent changes when sending a token due to the amount being
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// part of the hex encoded data property of the transaction.
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// 2. when updating the data property while sending NATIVE currency (ex: ETH)
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// because the data parameter defines function calls that the EVM will have
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// to execute which is where a large chunk of gas is potentially consumed.
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// 3. when the recipient changes while sending a token due to the recipient's
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// address being included in the hex encoded data property of the
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// transaction
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// 4. when the asset being sent changes due to the contract address and details
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// of the token being included in the hex encoded data property of the
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// transaction. If switching to NATIVE currency (ex: ETH), the gasLimit will
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// change due to hex data being removed (unless supplied by user).
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// This method computes the gasLimit estimate which is written to state in an
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// action handler in extraReducers.
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export const computeEstimatedGasLimit = createAsyncThunk(
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'send/computeEstimatedGasLimit',
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async (_, thunkApi) => {
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const state = thunkApi.getState();
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const { send, metamask } = state;
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const isNonStandardEthChain = getIsNonStandardEthChain(state);
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const chainId = getCurrentChainId(state);
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if (send.stage !== SEND_STAGES.EDIT) {
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const gasLimit = await estimateGasLimitForSend({
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gasPrice: send.gas.gasPrice,
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blockGasLimit: metamask.currentBlockGasLimit,
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selectedAddress: metamask.selectedAddress,
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sendToken: send.asset.details,
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to: send.recipient.address?.toLowerCase(),
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value: send.amount.value,
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data: send.draftTransaction.userInputHexData,
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isNonStandardEthChain,
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chainId,
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});
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await thunkApi.dispatch(setCustomGasLimit(gasLimit));
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return {
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gasLimit,
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};
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}
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return null;
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},
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);
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/**
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* This method is used to keep the original logic from the gas.duck.js file
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* after receiving a gasPrice from eth_gasPrice. First, the returned gasPrice
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* was converted to GWEI, then it was converted to a Number, then in the send
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* duck (here) we would use getGasPriceInHexWei to get back to hexWei. Now that
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* we receive a GWEI estimate from the controller, we still need to do this
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* weird conversion to get the proper rounding.
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* @param {T} gasPriceEstimate
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* @returns
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*/
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function getRoundedGasPrice(gasPriceEstimate) {
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const gasPriceInDecGwei = conversionUtil(gasPriceEstimate, {
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numberOfDecimals: 9,
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toDenomination: GWEI,
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fromNumericBase: 'dec',
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toNumericBase: 'dec',
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fromCurrency: ETH,
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fromDenomination: GWEI,
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});
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const gasPriceAsNumber = Number(gasPriceInDecGwei);
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return getGasPriceInHexWei(gasPriceAsNumber);
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}
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|
|
/**
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* Responsible for initializing required state for the send slice.
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* This method is dispatched from the send page in the componentDidMount
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* method. It is also dispatched anytime the network changes to ensure that
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* the slice remains valid with changing token and account balances. To do so
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|
* it keys into state to get necessary values and computes a starting point for
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* the send slice. It returns the values that might change from this action and
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* those values are written to the slice in the `initializeSendState.fulfilled`
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* action handler.
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*/
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|
export const initializeSendState = createAsyncThunk(
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'send/initializeSendState',
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async (_, thunkApi) => {
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const state = thunkApi.getState();
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const isNonStandardEthChain = getIsNonStandardEthChain(state);
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const chainId = getCurrentChainId(state);
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const eip1559support = checkNetworkAndAccountSupports1559(state);
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const {
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send: { asset, stage, recipient, amount, draftTransaction },
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metamask,
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} = state;
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// First determine the correct from address. For new sends this is always
|
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// the currently selected account and switching accounts switches the from
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// address. If editing an existing transaction (by clicking 'edit' on the
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// send page), the fromAddress is always the address from the txParams.
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const fromAddress =
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stage === SEND_STAGES.EDIT
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? draftTransaction.txParams.from
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: metamask.selectedAddress;
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// We need the account's balance which is calculated from cachedBalances in
|
|
// the getMetaMaskAccounts selector. getTargetAccount consumes this
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|
// selector and returns the account at the specified address.
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|
const account = getTargetAccount(state, fromAddress);
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|
|
|
// Default gasPrice to 1 gwei if all estimation fails, this is only used
|
|
// for gasLimit estimation and won't be set directly in state. Instead, we
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// will return the gasFeeEstimates and gasEstimateType so that the reducer
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// can set the appropriate gas fees in state.
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let gasPrice = '0x1';
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|
let gasEstimatePollToken = null;
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|
|
|
// Instruct the background process that polling for gas prices should begin
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|
gasEstimatePollToken = await getGasFeeEstimatesAndStartPolling();
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|
addPollingTokenToAppState(gasEstimatePollToken);
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|
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|
const {
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metamask: { gasFeeEstimates, gasEstimateType },
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|
} = thunkApi.getState();
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|
|
|
// Because we are only interested in getting a gasLimit estimation we only
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|
// need to worry about gasPrice. So we use maxFeePerGas as gasPrice if we
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// have a fee market estimation.
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|
if (gasEstimateType === GAS_ESTIMATE_TYPES.LEGACY) {
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|
gasPrice = getGasPriceInHexWei(gasFeeEstimates.medium);
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} else if (gasEstimateType === GAS_ESTIMATE_TYPES.ETH_GASPRICE) {
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gasPrice = getRoundedGasPrice(gasFeeEstimates.gasPrice);
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|
} else if (gasEstimateType === GAS_ESTIMATE_TYPES.FEE_MARKET) {
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|
gasPrice = getGasPriceInHexWei(
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gasFeeEstimates.medium.suggestedMaxFeePerGas,
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);
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|
} else {
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gasPrice = gasFeeEstimates.gasPrice
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? getRoundedGasPrice(gasFeeEstimates.gasPrice)
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: '0x0';
|
|
}
|
|
|
|
// Set a basic gasLimit in the event that other estimation fails
|
|
let gasLimit =
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|
asset.type === ASSET_TYPES.TOKEN
|
|
? GAS_LIMITS.BASE_TOKEN_ESTIMATE
|
|
: GAS_LIMITS.SIMPLE;
|
|
if (
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|
gasEstimateType !== GAS_ESTIMATE_TYPES.NONE &&
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stage !== SEND_STAGES.EDIT &&
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recipient.address
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) {
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|
// Run our estimateGasLimit logic to get a more accurate estimation of
|
|
// required gas. If this value isn't nullish, set it as the new gasLimit
|
|
const estimatedGasLimit = await estimateGasLimitForSend({
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gasPrice,
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|
blockGasLimit: metamask.currentBlockGasLimit,
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|
selectedAddress: fromAddress,
|
|
sendToken: asset.details,
|
|
to: recipient.address.toLowerCase(),
|
|
value: amount.value,
|
|
data: draftTransaction.userInputHexData,
|
|
isNonStandardEthChain,
|
|
chainId,
|
|
});
|
|
gasLimit = estimatedGasLimit || gasLimit;
|
|
}
|
|
// We have to keep the gas slice in sync with the draft send transaction
|
|
// so that it'll be initialized correctly if the gas modal is opened.
|
|
await thunkApi.dispatch(setCustomGasLimit(gasLimit));
|
|
// We must determine the balance of the asset that the transaction will be
|
|
// sending. This is done by referencing the native balance on the account
|
|
// for native assets, and calling the balanceOf method on the ERC20
|
|
// contract for token sends.
|
|
let { balance } = account;
|
|
if (asset.type === ASSET_TYPES.TOKEN) {
|
|
if (asset.details === null) {
|
|
// If we're sending a token but details have not been provided we must
|
|
// abort and set the send slice into invalid status.
|
|
throw new Error(
|
|
'Send slice initialized as token send without token details',
|
|
);
|
|
}
|
|
balance = await getERC20Balance(asset.details, fromAddress);
|
|
}
|
|
return {
|
|
address: fromAddress,
|
|
nativeBalance: account.balance,
|
|
assetBalance: balance,
|
|
chainId: getCurrentChainId(state),
|
|
tokens: getTokens(state),
|
|
gasFeeEstimates,
|
|
gasEstimateType,
|
|
gasLimit,
|
|
gasTotal: addHexPrefix(calcGasTotal(gasLimit, gasPrice)),
|
|
gasEstimatePollToken,
|
|
eip1559support,
|
|
};
|
|
},
|
|
);
|
|
|
|
export const initialState = {
|
|
// which stage of the send flow is the user on
|
|
stage: SEND_STAGES.INACTIVE,
|
|
// status of the send slice, either VALID or INVALID
|
|
status: SEND_STATUSES.VALID,
|
|
// Determines type of transaction being sent, defaulted to 0x0 (legacy)
|
|
transactionType: TRANSACTION_ENVELOPE_TYPES.LEGACY,
|
|
// tracks whether the current network supports EIP 1559 transactions
|
|
eip1559support: false,
|
|
account: {
|
|
// from account address, defaults to selected account. will be the account
|
|
// the original transaction was sent from in the case of the EDIT stage
|
|
address: null,
|
|
// balance of the from account
|
|
balance: '0x0',
|
|
},
|
|
gas: {
|
|
// indicate whether the gas estimate is loading
|
|
isGasEstimateLoading: true,
|
|
// String token indentifying a listener for polling on the gasFeeController
|
|
gasEstimatePollToken: null,
|
|
// has the user set custom gas in the custom gas modal
|
|
isCustomGasSet: false,
|
|
// maximum gas needed for tx
|
|
gasLimit: '0x0',
|
|
// price in wei to pay per gas
|
|
gasPrice: '0x0',
|
|
// maximum price in wei to pay per gas
|
|
maxFeePerGas: '0x0',
|
|
// maximum priority fee in wei to pay per gas
|
|
maxPriorityFeePerGas: '0x0',
|
|
// expected price in wei necessary to pay per gas used for a transaction
|
|
// to be included in a reasonable timeframe. Comes from GasFeeController.
|
|
gasPriceEstimate: '0x0',
|
|
// maximum total price in wei to pay
|
|
gasTotal: '0x0',
|
|
// minimum supported gasLimit
|
|
minimumGasLimit: GAS_LIMITS.SIMPLE,
|
|
// error to display for gas fields
|
|
error: null,
|
|
},
|
|
amount: {
|
|
// The mode to use when determining new amounts. For INPUT mode the
|
|
// provided payload is always used. For MAX it is calculated based on avail
|
|
// asset balance
|
|
mode: AMOUNT_MODES.INPUT,
|
|
// Current value of the transaction, how much of the asset are we sending
|
|
value: '0x0',
|
|
// error to display for amount field
|
|
error: null,
|
|
},
|
|
asset: {
|
|
// type can be either NATIVE such as ETH or TOKEN for ERC20 tokens
|
|
type: ASSET_TYPES.NATIVE,
|
|
// the balance the user holds at the from address for this asset
|
|
balance: '0x0',
|
|
// In the case of tokens, the address, decimals and symbol of the token
|
|
// will be included in details
|
|
details: null,
|
|
},
|
|
draftTransaction: {
|
|
// The metamask internal id of the transaction. Only populated in the EDIT
|
|
// stage.
|
|
id: null,
|
|
// The hex encoded data provided by the user who has enabled hex data field
|
|
// in advanced settings
|
|
userInputHexData: null,
|
|
// The txParams that should be submitted to the network once this
|
|
// transaction is confirmed. This object is computed on every write to the
|
|
// slice of fields that would result in the txParams changing
|
|
txParams: {
|
|
to: '',
|
|
from: '',
|
|
data: undefined,
|
|
value: '0x0',
|
|
gas: '0x0',
|
|
gasPrice: '0x0',
|
|
type: TRANSACTION_ENVELOPE_TYPES.LEGACY,
|
|
},
|
|
},
|
|
recipient: {
|
|
// Defines which mode to use for searching for matches in the input field
|
|
mode: RECIPIENT_SEARCH_MODES.CONTACT_LIST,
|
|
// Partial, not yet validated, entry into the address field. Used to share
|
|
// user input amongst the AddRecipient and EnsInput components.
|
|
userInput: '',
|
|
// The address of the recipient
|
|
address: '',
|
|
// The nickname stored in the user's address book for the recipient address
|
|
nickname: '',
|
|
// Error to display on the address field
|
|
error: null,
|
|
// Warning to display on the address field
|
|
warning: null,
|
|
},
|
|
};
|
|
|
|
const slice = createSlice({
|
|
name,
|
|
initialState,
|
|
reducers: {
|
|
/**
|
|
* update current amount.value in state and run post update validation of
|
|
* the amount field and the send state. Recomputes the draftTransaction
|
|
*/
|
|
updateSendAmount: (state, action) => {
|
|
state.amount.value = addHexPrefix(action.payload);
|
|
// Once amount has changed, validate the field
|
|
slice.caseReducers.validateAmountField(state);
|
|
if (state.asset.type === ASSET_TYPES.NATIVE) {
|
|
// if sending the native asset the amount being sent will impact the
|
|
// gas field as well because the gas validation takes into
|
|
// consideration the available balance minus amount sent before
|
|
// checking if there is enough left to cover the gas fee.
|
|
slice.caseReducers.validateGasField(state);
|
|
}
|
|
// validate send state
|
|
slice.caseReducers.validateSendState(state);
|
|
},
|
|
/**
|
|
* computes the maximum amount of asset that can be sent and then calls
|
|
* the updateSendAmount action above with the computed value, which will
|
|
* revalidate the field and form and recomputes the draftTransaction
|
|
*/
|
|
updateAmountToMax: (state) => {
|
|
let amount = '0x0';
|
|
if (state.asset.type === ASSET_TYPES.TOKEN) {
|
|
const decimals = state.asset.details?.decimals ?? 0;
|
|
const multiplier = Math.pow(10, Number(decimals));
|
|
|
|
amount = multiplyCurrencies(state.asset.balance, multiplier, {
|
|
toNumericBase: 'hex',
|
|
multiplicandBase: 16,
|
|
multiplierBase: 10,
|
|
});
|
|
} else {
|
|
amount = subtractCurrencies(
|
|
addHexPrefix(state.asset.balance),
|
|
addHexPrefix(state.gas.gasTotal),
|
|
{
|
|
toNumericBase: 'hex',
|
|
aBase: 16,
|
|
bBase: 16,
|
|
},
|
|
);
|
|
}
|
|
slice.caseReducers.updateSendAmount(state, {
|
|
payload: amount,
|
|
});
|
|
// draftTransaction update happens in updateSendAmount
|
|
},
|
|
/**
|
|
* updates the draftTransaction.userInputHexData state key and then
|
|
* recomputes the draftTransaction if the user is currently sending the
|
|
* native asset. When sending ERC20 assets, this is unnecessary because the
|
|
* hex data used in the transaction will be that for interacting with the
|
|
* ERC20 contract
|
|
*/
|
|
updateUserInputHexData: (state, action) => {
|
|
state.draftTransaction.userInputHexData = action.payload;
|
|
if (state.asset.type === ASSET_TYPES.NATIVE) {
|
|
slice.caseReducers.updateDraftTransaction(state);
|
|
}
|
|
},
|
|
/**
|
|
* Initiates the edit transaction flow by setting the stage to 'EDIT' and
|
|
* then pulling the details of the previously submitted transaction from
|
|
* the action payload. It also computes a new draftTransaction that will be
|
|
* used when updating the transaction in the provider
|
|
*/
|
|
editTransaction: (state, action) => {
|
|
state.stage = SEND_STAGES.EDIT;
|
|
state.gas.gasLimit = action.payload.gasLimit;
|
|
state.gas.gasPrice = action.payload.gasPrice;
|
|
state.amount.value = action.payload.amount;
|
|
state.gas.error = null;
|
|
state.amount.error = null;
|
|
state.recipient.address = action.payload.address;
|
|
state.recipient.nickname = action.payload.nickname;
|
|
state.draftTransaction.id = action.payload.id;
|
|
state.draftTransaction.txParams.from = action.payload.from;
|
|
slice.caseReducers.updateDraftTransaction(state);
|
|
},
|
|
/**
|
|
* gasTotal is computed based on gasPrice and gasLimit and set in state
|
|
* recomputes the maximum amount if the current amount mode is 'MAX' and
|
|
* sending the native token. ERC20 assets max amount is unaffected by
|
|
* gasTotal so does not need to be recomputed. Finally, validates the gas
|
|
* field and send state, then updates the draft transaction.
|
|
*/
|
|
calculateGasTotal: (state) => {
|
|
// use maxFeePerGas as the multiplier if working with a FEE_MARKET transaction
|
|
// otherwise use gasPrice
|
|
if (state.transactionType === TRANSACTION_ENVELOPE_TYPES.FEE_MARKET) {
|
|
state.gas.gasTotal = addHexPrefix(
|
|
calcGasTotal(state.gas.gasLimit, state.gas.maxFeePerGas),
|
|
);
|
|
} else {
|
|
state.gas.gasTotal = addHexPrefix(
|
|
calcGasTotal(state.gas.gasLimit, state.gas.gasPrice),
|
|
);
|
|
}
|
|
if (
|
|
state.amount.mode === AMOUNT_MODES.MAX &&
|
|
state.asset.type === ASSET_TYPES.NATIVE
|
|
) {
|
|
slice.caseReducers.updateAmountToMax(state);
|
|
}
|
|
slice.caseReducers.validateAmountField(state);
|
|
slice.caseReducers.validateGasField(state);
|
|
// validate send state
|
|
slice.caseReducers.validateSendState(state);
|
|
},
|
|
/**
|
|
* sets the provided gasLimit in state and then recomputes the gasTotal.
|
|
*/
|
|
updateGasLimit: (state, action) => {
|
|
state.gas.gasLimit = addHexPrefix(action.payload);
|
|
slice.caseReducers.calculateGasTotal(state);
|
|
},
|
|
/**
|
|
* Sets the appropriate gas fees in state and determines and sets the
|
|
* appropriate transactionType based on gas fee fields received.
|
|
*/
|
|
updateGasFees: (state, action) => {
|
|
if (
|
|
action.payload.transactionType === TRANSACTION_ENVELOPE_TYPES.FEE_MARKET
|
|
) {
|
|
state.gas.maxFeePerGas = addHexPrefix(action.payload.maxFeePerGas);
|
|
state.gas.maxPriorityFeePerGas = addHexPrefix(
|
|
action.payload.maxPriorityFeePerGas,
|
|
);
|
|
state.transactionType = TRANSACTION_ENVELOPE_TYPES.FEE_MARKET;
|
|
} else {
|
|
// Until we remove the old UI we don't want to automatically update
|
|
// gasPrice if the user has already manually changed the field value.
|
|
// When receiving a new estimate the isAutomaticUpdate property will be
|
|
// on the payload (and set to true). If isAutomaticUpdate is true,
|
|
// then we check if the previous estimate was '0x0' or if the previous
|
|
// gasPrice equals the previous gasEstimate. if either of those cases
|
|
// are true then we update the gasPrice otherwise we skip it because
|
|
// it indicates the user has ejected from the estimates by modifying
|
|
// the field.
|
|
if (
|
|
action.payload.isAutomaticUpdate !== true ||
|
|
state.gas.gasPriceEstimate === '0x0' ||
|
|
state.gas.gasPrice === state.gas.gasPriceEstimate
|
|
) {
|
|
state.gas.gasPrice = addHexPrefix(action.payload.gasPrice);
|
|
}
|
|
state.transactionType = TRANSACTION_ENVELOPE_TYPES.LEGACY;
|
|
}
|
|
slice.caseReducers.calculateGasTotal(state);
|
|
},
|
|
/**
|
|
* Sets the appropriate gas fees in state after receiving new estimates.
|
|
*/
|
|
updateGasFeeEstimates: (state, action) => {
|
|
const { gasFeeEstimates, gasEstimateType } = action.payload;
|
|
let gasPriceEstimate = '0x0';
|
|
switch (gasEstimateType) {
|
|
case GAS_ESTIMATE_TYPES.FEE_MARKET:
|
|
slice.caseReducers.updateGasFees(state, {
|
|
payload: {
|
|
transactionType: TRANSACTION_ENVELOPE_TYPES.FEE_MARKET,
|
|
maxFeePerGas: getGasPriceInHexWei(
|
|
gasFeeEstimates.medium.suggestedMaxFeePerGas,
|
|
),
|
|
maxPriorityFeePerGas: getGasPriceInHexWei(
|
|
gasFeeEstimates.medium.suggestedMaxPriorityFeePerGas,
|
|
),
|
|
},
|
|
});
|
|
break;
|
|
case GAS_ESTIMATE_TYPES.LEGACY:
|
|
gasPriceEstimate = getRoundedGasPrice(gasFeeEstimates.medium);
|
|
slice.caseReducers.updateGasFees(state, {
|
|
payload: {
|
|
gasPrice: gasPriceEstimate,
|
|
type: TRANSACTION_ENVELOPE_TYPES.LEGACY,
|
|
isAutomaticUpdate: true,
|
|
},
|
|
});
|
|
break;
|
|
case GAS_ESTIMATE_TYPES.ETH_GASPRICE:
|
|
gasPriceEstimate = getRoundedGasPrice(gasFeeEstimates.gasPrice);
|
|
slice.caseReducers.updateGasFees(state, {
|
|
payload: {
|
|
gasPrice: getRoundedGasPrice(gasFeeEstimates.gasPrice),
|
|
type: TRANSACTION_ENVELOPE_TYPES.LEGACY,
|
|
isAutomaticUpdate: true,
|
|
},
|
|
});
|
|
break;
|
|
case GAS_ESTIMATE_TYPES.NONE:
|
|
default:
|
|
break;
|
|
}
|
|
// Record the latest gasPriceEstimate for future comparisons
|
|
state.gas.gasPriceEstimate = addHexPrefix(gasPriceEstimate);
|
|
},
|
|
/**
|
|
* sets the amount mode to the provided value as long as it is one of the
|
|
* supported modes (MAX|INPUT)
|
|
*/
|
|
updateAmountMode: (state, action) => {
|
|
if (Object.values(AMOUNT_MODES).includes(action.payload)) {
|
|
state.amount.mode = action.payload;
|
|
}
|
|
},
|
|
updateAsset: (state, action) => {
|
|
state.asset.type = action.payload.type;
|
|
state.asset.balance = action.payload.balance;
|
|
if (state.asset.type === ASSET_TYPES.TOKEN) {
|
|
state.asset.details = action.payload.details;
|
|
} else {
|
|
// clear the details object when sending native currency
|
|
state.asset.details = null;
|
|
if (state.recipient.error === CONTRACT_ADDRESS_ERROR) {
|
|
// Errors related to sending tokens to their own contract address
|
|
// are no longer valid when sending native currency.
|
|
state.recipient.error = null;
|
|
}
|
|
|
|
if (state.recipient.warning === KNOWN_RECIPIENT_ADDRESS_WARNING) {
|
|
// Warning related to sending tokens to a known contract address
|
|
// are no longer valid when sending native currency.
|
|
state.recipient.warning = null;
|
|
}
|
|
}
|
|
// if amount mode is MAX update amount to max of new asset, otherwise set
|
|
// to zero. This will revalidate the send amount field.
|
|
if (state.amount.mode === AMOUNT_MODES.MAX) {
|
|
slice.caseReducers.updateAmountToMax(state);
|
|
} else {
|
|
slice.caseReducers.updateSendAmount(state, { payload: '0x0' });
|
|
}
|
|
// validate send state
|
|
slice.caseReducers.validateSendState(state);
|
|
},
|
|
updateRecipient: (state, action) => {
|
|
state.recipient.error = null;
|
|
state.recipient.userInput = '';
|
|
state.recipient.address = action.payload.address ?? '';
|
|
state.recipient.nickname = action.payload.nickname ?? '';
|
|
|
|
if (state.recipient.address === '') {
|
|
// If address is null we are clearing the recipient and must return
|
|
// to the ADD_RECIPIENT stage.
|
|
state.stage = SEND_STAGES.ADD_RECIPIENT;
|
|
} else {
|
|
// if and address is provided and an id exists on the draft transaction,
|
|
// we progress to the EDIT stage, otherwise we progress to the DRAFT
|
|
// stage. We also reset the search mode for recipient search.
|
|
state.stage =
|
|
state.draftTransaction.id === null
|
|
? SEND_STAGES.DRAFT
|
|
: SEND_STAGES.EDIT;
|
|
state.recipient.mode = RECIPIENT_SEARCH_MODES.CONTACT_LIST;
|
|
}
|
|
|
|
// validate send state
|
|
slice.caseReducers.validateSendState(state);
|
|
},
|
|
updateDraftTransaction: (state) => {
|
|
// We keep a copy of txParams in state that could be submitted to the
|
|
// network if the form state is valid.
|
|
if (state.status === SEND_STATUSES.VALID) {
|
|
// We don't/shouldn't modify the from address when editing an
|
|
// existing transaction.
|
|
if (state.stage !== SEND_STAGES.EDIT) {
|
|
state.draftTransaction.txParams.from = state.account.address;
|
|
}
|
|
|
|
// gasLimit always needs to be set regardless of the asset being sent
|
|
// or the type of transaction.
|
|
state.draftTransaction.txParams.gas = state.gas.gasLimit;
|
|
switch (state.asset.type) {
|
|
case ASSET_TYPES.TOKEN:
|
|
// When sending a token the to address is the contract address of
|
|
// the token being sent. The value is set to '0x0' and the data
|
|
// is generated from the recipient address, token being sent and
|
|
// amount.
|
|
state.draftTransaction.txParams.to = state.asset.details.address;
|
|
state.draftTransaction.txParams.value = '0x0';
|
|
state.draftTransaction.txParams.data = generateTokenTransferData({
|
|
toAddress: state.recipient.address,
|
|
amount: state.amount.value,
|
|
sendToken: state.asset.details,
|
|
});
|
|
break;
|
|
case ASSET_TYPES.NATIVE:
|
|
default:
|
|
// When sending native currency the to and value fields use the
|
|
// recipient and amount values and the data key is either null or
|
|
// populated with the user input provided in hex field.
|
|
state.draftTransaction.txParams.to = state.recipient.address;
|
|
state.draftTransaction.txParams.value = state.amount.value;
|
|
state.draftTransaction.txParams.data =
|
|
state.draftTransaction.userInputHexData ?? undefined;
|
|
}
|
|
|
|
// We need to make sure that we only include the right gas fee fields
|
|
// based on the type of transaction the network supports. We will also set
|
|
// the type param here. We must delete the opposite fields to avoid
|
|
// stale data in txParams.
|
|
if (state.eip1559support) {
|
|
state.draftTransaction.txParams.type =
|
|
TRANSACTION_ENVELOPE_TYPES.FEE_MARKET;
|
|
|
|
state.draftTransaction.txParams.maxFeePerGas = state.gas.maxFeePerGas;
|
|
state.draftTransaction.txParams.maxPriorityFeePerGas =
|
|
state.gas.maxPriorityFeePerGas;
|
|
|
|
if (
|
|
!state.draftTransaction.txParams.maxFeePerGas ||
|
|
state.draftTransaction.txParams.maxFeePerGas === '0x0'
|
|
) {
|
|
state.draftTransaction.txParams.maxFeePerGas = state.gas.gasPrice;
|
|
}
|
|
|
|
if (
|
|
!state.draftTransaction.txParams.maxPriorityFeePerGas ||
|
|
state.draftTransaction.txParams.maxPriorityFeePerGas === '0x0'
|
|
) {
|
|
state.draftTransaction.txParams.maxPriorityFeePerGas =
|
|
state.draftTransaction.txParams.maxFeePerGas;
|
|
}
|
|
|
|
delete state.draftTransaction.txParams.gasPrice;
|
|
} else {
|
|
delete state.draftTransaction.txParams.maxFeePerGas;
|
|
delete state.draftTransaction.txParams.maxPriorityFeePerGas;
|
|
|
|
state.draftTransaction.txParams.gasPrice = state.gas.gasPrice;
|
|
state.draftTransaction.txParams.type =
|
|
TRANSACTION_ENVELOPE_TYPES.LEGACY;
|
|
}
|
|
}
|
|
},
|
|
useDefaultGas: (state) => {
|
|
// Show the default gas price/limit fields in the send page
|
|
state.gas.isCustomGasSet = false;
|
|
},
|
|
useCustomGas: (state) => {
|
|
// Show the gas fees set in the custom gas modal (state.gas.customData)
|
|
state.gas.isCustomGasSet = true;
|
|
},
|
|
updateRecipientUserInput: (state, action) => {
|
|
// Update the value in state to match what the user is typing into the
|
|
// input field
|
|
state.recipient.userInput = action.payload;
|
|
},
|
|
validateRecipientUserInput: (state, action) => {
|
|
const { asset, recipient } = state;
|
|
|
|
if (
|
|
recipient.mode === RECIPIENT_SEARCH_MODES.MY_ACCOUNTS ||
|
|
recipient.userInput === '' ||
|
|
recipient.userInput === null
|
|
) {
|
|
recipient.error = null;
|
|
recipient.warning = null;
|
|
} else {
|
|
const isSendingToken = asset.type === ASSET_TYPES.TOKEN;
|
|
const { chainId, tokens } = action.payload;
|
|
if (
|
|
isBurnAddress(recipient.userInput) ||
|
|
(!isValidHexAddress(recipient.userInput, {
|
|
mixedCaseUseChecksum: true,
|
|
}) &&
|
|
!isValidDomainName(recipient.userInput))
|
|
) {
|
|
recipient.error = isDefaultMetaMaskChain(chainId)
|
|
? INVALID_RECIPIENT_ADDRESS_ERROR
|
|
: INVALID_RECIPIENT_ADDRESS_NOT_ETH_NETWORK_ERROR;
|
|
} else if (
|
|
isSendingToken &&
|
|
isOriginContractAddress(recipient.userInput, asset.details.address)
|
|
) {
|
|
recipient.error = CONTRACT_ADDRESS_ERROR;
|
|
} else {
|
|
recipient.error = null;
|
|
}
|
|
|
|
if (
|
|
isSendingToken &&
|
|
isValidHexAddress(recipient.userInput) &&
|
|
(toChecksumAddress(recipient.userInput) in contractMap ||
|
|
checkExistingAddresses(recipient.userInput, tokens))
|
|
) {
|
|
recipient.warning = KNOWN_RECIPIENT_ADDRESS_WARNING;
|
|
} else {
|
|
recipient.warning = null;
|
|
}
|
|
}
|
|
},
|
|
updateRecipientSearchMode: (state, action) => {
|
|
state.recipient.userInput = '';
|
|
state.recipient.mode = action.payload;
|
|
},
|
|
resetSendState: () => initialState,
|
|
validateAmountField: (state) => {
|
|
switch (true) {
|
|
// set error to INSUFFICIENT_FUNDS_ERROR if the account balance is lower
|
|
// than the total price of the transaction inclusive of gas fees.
|
|
case state.asset.type === ASSET_TYPES.NATIVE &&
|
|
!isBalanceSufficient({
|
|
amount: state.amount.value,
|
|
balance: state.asset.balance,
|
|
gasTotal: state.gas.gasTotal ?? '0x0',
|
|
}):
|
|
state.amount.error = INSUFFICIENT_FUNDS_ERROR;
|
|
break;
|
|
// set error to INSUFFICIENT_FUNDS_ERROR if the token balance is lower
|
|
// than the amount of token the user is attempting to send.
|
|
case state.asset.type === ASSET_TYPES.TOKEN &&
|
|
!isTokenBalanceSufficient({
|
|
tokenBalance: state.asset.balance ?? '0x0',
|
|
amount: state.amount.value,
|
|
decimals: state.asset.details.decimals,
|
|
}):
|
|
state.amount.error = INSUFFICIENT_TOKENS_ERROR;
|
|
break;
|
|
// if the amount is negative, set error to NEGATIVE_ETH_ERROR
|
|
// TODO: change this to NEGATIVE_ERROR and remove the currency bias.
|
|
case conversionGreaterThan(
|
|
{ value: 0, fromNumericBase: 'dec' },
|
|
{ value: state.amount.value, fromNumericBase: 'hex' },
|
|
):
|
|
state.amount.error = NEGATIVE_ETH_ERROR;
|
|
break;
|
|
// If none of the above are true, set error to null
|
|
default:
|
|
state.amount.error = null;
|
|
}
|
|
},
|
|
validateGasField: (state) => {
|
|
// Checks if the user has enough funds to cover the cost of gas, always
|
|
// uses the native currency and does not take into account the amount
|
|
// being sent. If the user has enough to cover cost of gas but not gas
|
|
// + amount then the error will be displayed on the amount field.
|
|
const insufficientFunds = !isBalanceSufficient({
|
|
amount:
|
|
state.asset.type === ASSET_TYPES.NATIVE ? state.amount.value : '0x0',
|
|
balance: state.account.balance,
|
|
gasTotal: state.gas.gasTotal ?? '0x0',
|
|
});
|
|
|
|
state.gas.error = insufficientFunds ? INSUFFICIENT_FUNDS_ERROR : null;
|
|
},
|
|
validateSendState: (state) => {
|
|
switch (true) {
|
|
// 1 + 2. State is invalid when either gas or amount fields have errors
|
|
// 3. State is invalid if asset type is a token and the token details
|
|
// are unknown.
|
|
// 4. State is invalid if no recipient has been added
|
|
// 5. State is invalid if the send state is uninitialized
|
|
// 6. State is invalid if gas estimates are loading
|
|
// 7. State is invalid if gasLimit is less than the minimumGasLimit
|
|
// 8. State is invalid if the selected asset is a ERC721
|
|
case Boolean(state.amount.error):
|
|
case Boolean(state.gas.error):
|
|
case state.asset.type === ASSET_TYPES.TOKEN &&
|
|
state.asset.details === null:
|
|
case state.stage === SEND_STAGES.ADD_RECIPIENT:
|
|
case state.stage === SEND_STAGES.INACTIVE:
|
|
case state.gas.isGasEstimateLoading:
|
|
case new BigNumber(state.gas.gasLimit, 16).lessThan(
|
|
new BigNumber(state.gas.minimumGasLimit),
|
|
):
|
|
state.status = SEND_STATUSES.INVALID;
|
|
break;
|
|
case state.asset.type === ASSET_TYPES.TOKEN &&
|
|
state.asset.details.isERC721 === true:
|
|
state.status = SEND_STATUSES.INVALID;
|
|
break;
|
|
default:
|
|
state.status = SEND_STATUSES.VALID;
|
|
// Recompute the draftTransaction object
|
|
slice.caseReducers.updateDraftTransaction(state);
|
|
}
|
|
},
|
|
},
|
|
extraReducers: (builder) => {
|
|
builder
|
|
.addCase(QR_CODE_DETECTED, (state, action) => {
|
|
// When data is received from the QR Code Scanner we set the recipient
|
|
// as long as a valid address can be pulled from the data. If an
|
|
// address is pulled but it is invalid, we display an error.
|
|
const qrCodeData = action.value;
|
|
if (qrCodeData) {
|
|
if (qrCodeData.type === 'address') {
|
|
const scannedAddress = qrCodeData.values.address.toLowerCase();
|
|
if (
|
|
isValidHexAddress(scannedAddress, { allowNonPrefixed: false })
|
|
) {
|
|
if (state.recipient.address !== scannedAddress) {
|
|
slice.caseReducers.updateRecipient(state, {
|
|
payload: { address: scannedAddress },
|
|
});
|
|
}
|
|
} else {
|
|
state.recipient.error = INVALID_RECIPIENT_ADDRESS_ERROR;
|
|
}
|
|
}
|
|
}
|
|
})
|
|
.addCase(SELECTED_ACCOUNT_CHANGED, (state, action) => {
|
|
// If we are on the edit flow the account we are keyed into will be the
|
|
// original 'from' account, which may differ from the selected account
|
|
if (state.stage !== SEND_STAGES.EDIT) {
|
|
// This event occurs when the user selects a new account from the
|
|
// account menu, or the currently active account's balance updates.
|
|
state.account.balance = action.payload.account.balance;
|
|
state.account.address = action.payload.account.address;
|
|
// We need to update the asset balance if the asset is the native
|
|
// network asset. Once we update the balance we recompute error state.
|
|
if (state.asset.type === ASSET_TYPES.NATIVE) {
|
|
state.asset.balance = action.payload.account.balance;
|
|
}
|
|
slice.caseReducers.validateAmountField(state);
|
|
slice.caseReducers.validateGasField(state);
|
|
slice.caseReducers.validateSendState(state);
|
|
}
|
|
})
|
|
.addCase(ACCOUNT_CHANGED, (state, action) => {
|
|
// If we are on the edit flow then we need to watch for changes to the
|
|
// current account.address in state and keep balance updated
|
|
// appropriately
|
|
if (
|
|
state.stage === SEND_STAGES.EDIT &&
|
|
action.payload.account.address === state.account.address
|
|
) {
|
|
// This event occurs when the user's account details update due to
|
|
// background state changes. If the account that is being updated is
|
|
// the current from account on the edit flow we need to update
|
|
// the balance for the account and revalidate the send state.
|
|
state.account.balance = action.payload.account.balance;
|
|
// We need to update the asset balance if the asset is the native
|
|
// network asset. Once we update the balance we recompute error state.
|
|
if (state.asset.type === ASSET_TYPES.NATIVE) {
|
|
state.asset.balance = action.payload.account.balance;
|
|
}
|
|
slice.caseReducers.validateAmountField(state);
|
|
slice.caseReducers.validateGasField(state);
|
|
slice.caseReducers.validateSendState(state);
|
|
}
|
|
})
|
|
.addCase(ADDRESS_BOOK_UPDATED, (state, action) => {
|
|
// When the address book updates from background state changes we need
|
|
// to check to see if an entry exists for the current address or if the
|
|
// entry changed.
|
|
const { addressBook } = action.payload;
|
|
if (addressBook[state.recipient.address]?.name) {
|
|
state.recipient.nickname = addressBook[state.recipient.address].name;
|
|
}
|
|
})
|
|
.addCase(initializeSendState.pending, (state) => {
|
|
// when we begin initializing state, which can happen when switching
|
|
// chains even after loading the send flow, we set
|
|
// gas.isGasEstimateLoading as initialization will trigger a fetch
|
|
// for gasPrice estimates.
|
|
state.gas.isGasEstimateLoading = true;
|
|
})
|
|
.addCase(initializeSendState.fulfilled, (state, action) => {
|
|
// writes the computed initialized state values into the slice and then
|
|
// calculates slice validity using the caseReducers.
|
|
state.eip1559support = action.payload.eip1559support;
|
|
state.account.address = action.payload.address;
|
|
state.account.balance = action.payload.nativeBalance;
|
|
state.asset.balance = action.payload.assetBalance;
|
|
state.gas.gasLimit = action.payload.gasLimit;
|
|
slice.caseReducers.updateGasFeeEstimates(state, {
|
|
payload: {
|
|
gasFeeEstimates: action.payload.gasFeeEstimates,
|
|
gasEstimateType: action.payload.gasEstimateType,
|
|
},
|
|
});
|
|
state.gas.gasTotal = action.payload.gasTotal;
|
|
state.gas.gasEstimatePollToken = action.payload.gasEstimatePollToken;
|
|
if (action.payload.gasEstimatePollToken) {
|
|
state.gas.isGasEstimateLoading = false;
|
|
}
|
|
if (state.stage !== SEND_STAGES.INACTIVE) {
|
|
slice.caseReducers.validateRecipientUserInput(state, {
|
|
payload: {
|
|
chainId: action.payload.chainId,
|
|
tokens: action.payload.tokens,
|
|
},
|
|
});
|
|
}
|
|
state.stage =
|
|
state.stage === SEND_STAGES.INACTIVE
|
|
? SEND_STAGES.ADD_RECIPIENT
|
|
: state.stage;
|
|
slice.caseReducers.validateAmountField(state);
|
|
slice.caseReducers.validateGasField(state);
|
|
slice.caseReducers.validateSendState(state);
|
|
})
|
|
.addCase(computeEstimatedGasLimit.pending, (state) => {
|
|
// When we begin to fetch gasLimit we should indicate we are loading
|
|
// a gas estimate.
|
|
state.gas.isGasEstimateLoading = true;
|
|
})
|
|
.addCase(computeEstimatedGasLimit.fulfilled, (state, action) => {
|
|
// When we receive a new gasLimit from the computeEstimatedGasLimit
|
|
// thunk we need to update our gasLimit in the slice. We call into the
|
|
// caseReducer updateGasLimit to tap into the appropriate follow up
|
|
// checks and gasTotal calculation. First set isGasEstimateLoading to
|
|
// false.
|
|
state.gas.isGasEstimateLoading = false;
|
|
if (action.payload?.gasLimit) {
|
|
slice.caseReducers.updateGasLimit(state, {
|
|
payload: action.payload.gasLimit,
|
|
});
|
|
}
|
|
})
|
|
.addCase(computeEstimatedGasLimit.rejected, (state) => {
|
|
// If gas estimation fails, we should set the loading state to false,
|
|
// because it is no longer loading
|
|
state.gas.isGasEstimateLoading = false;
|
|
})
|
|
.addCase(GAS_FEE_ESTIMATES_UPDATED, (state, action) => {
|
|
// When the gasFeeController updates its gas fee estimates we need to
|
|
// update and validate state based on those new values
|
|
slice.caseReducers.updateGasFeeEstimates(state, {
|
|
payload: action.payload,
|
|
});
|
|
});
|
|
},
|
|
});
|
|
|
|
const { actions, reducer } = slice;
|
|
|
|
export default reducer;
|
|
|
|
const {
|
|
useDefaultGas,
|
|
useCustomGas,
|
|
updateGasLimit,
|
|
validateRecipientUserInput,
|
|
updateRecipientSearchMode,
|
|
} = actions;
|
|
|
|
export { useDefaultGas, useCustomGas, updateGasLimit };
|
|
|
|
// Action Creators
|
|
|
|
/**
|
|
* This method is a temporary placeholder to support the old UI in both the
|
|
* gas modal and the send flow. Soon we won't need to modify gasPrice from the
|
|
* send flow based on user input, it'll just be a shallow copy of the current
|
|
* estimate. This method is necessary because the internal structure of this
|
|
* slice has been changed such that it is agnostic to transaction envelope
|
|
* type, and this method calls into the new structure in the appropriate way.
|
|
*
|
|
* @deprecated - don't extend the usage of this temporary method
|
|
* @param {string} gasPrice - new gas price in hex wei
|
|
* @returns {void}
|
|
*/
|
|
export function updateGasPrice(gasPrice) {
|
|
return (dispatch) => {
|
|
dispatch(
|
|
actions.updateGasFees({
|
|
gasPrice,
|
|
transactionType: TRANSACTION_ENVELOPE_TYPES.LEGACY,
|
|
}),
|
|
);
|
|
};
|
|
}
|
|
|
|
export function resetSendState() {
|
|
return async (dispatch, getState) => {
|
|
const state = getState();
|
|
dispatch(actions.resetSendState());
|
|
|
|
if (state[name].gas.gasEstimatePollToken) {
|
|
await disconnectGasFeeEstimatePoller(
|
|
state[name].gas.gasEstimatePollToken,
|
|
);
|
|
removePollingTokenFromAppState(state[name].gas.gasEstimatePollToken);
|
|
}
|
|
};
|
|
}
|
|
/**
|
|
* Updates the amount the user intends to send and performs side effects.
|
|
* 1. If the current mode is MAX change to INPUT
|
|
* 2. If sending a token, recompute the gasLimit estimate
|
|
* @param {string} amount - hex string representing value
|
|
* @returns {void}
|
|
*/
|
|
export function updateSendAmount(amount) {
|
|
return async (dispatch, getState) => {
|
|
await dispatch(actions.updateSendAmount(amount));
|
|
const state = getState();
|
|
if (state.send.amount.mode === AMOUNT_MODES.MAX) {
|
|
await dispatch(actions.updateAmountMode(AMOUNT_MODES.INPUT));
|
|
}
|
|
await dispatch(computeEstimatedGasLimit());
|
|
};
|
|
}
|
|
|
|
/**
|
|
* updates the asset to send to one of NATIVE or TOKEN and ensures that the
|
|
* asset balance is set. If sending a TOKEN also updates the asset details
|
|
* object with the appropriate ERC20 details including address, symbol and
|
|
* decimals.
|
|
* @param {Object} payload - action payload
|
|
* @param {string} payload.type - type of asset to send
|
|
* @param {Object} [payload.details] - ERC20 details if sending TOKEN asset
|
|
* @param {string} [payload.details.address] - contract address for ERC20
|
|
* @param {string} [payload.details.decimals] - Number of token decimals
|
|
* @param {string} [payload.details.symbol] - asset symbol to display
|
|
* @returns {void}
|
|
*/
|
|
export function updateSendAsset({ type, details }) {
|
|
return async (dispatch, getState) => {
|
|
const state = getState();
|
|
let { balance } = state.send.asset;
|
|
if (type === ASSET_TYPES.TOKEN) {
|
|
// if changing to a token, get the balance from the network. The asset
|
|
// overview page and asset list on the wallet overview page contain
|
|
// send buttons that call this method before initialization occurs.
|
|
// When this happens we don't yet have an account.address so default to
|
|
// the currently active account. In addition its possible for the balance
|
|
// check to take a decent amount of time, so we display a loading
|
|
// indication so that that immediate feedback is displayed to the user.
|
|
await dispatch(showLoadingIndication());
|
|
balance = await getERC20Balance(
|
|
details,
|
|
state.send.account.address ?? getSelectedAddress(state),
|
|
);
|
|
if (details && details.isERC721 === undefined) {
|
|
const updatedAssetDetails = await updateTokenType(details.address);
|
|
details.isERC721 = updatedAssetDetails.isERC721;
|
|
}
|
|
|
|
await dispatch(hideLoadingIndication());
|
|
} else {
|
|
// if changing to native currency, get it from the account key in send
|
|
// state which is kept in sync when accounts change.
|
|
balance = state.send.account.balance;
|
|
}
|
|
// update the asset in state which will re-run amount and gas validation
|
|
await dispatch(actions.updateAsset({ type, details, balance }));
|
|
await dispatch(computeEstimatedGasLimit());
|
|
};
|
|
}
|
|
|
|
/**
|
|
* This method is for usage when validating user input so that validation
|
|
* is only run after a delay in typing of 300ms. Usage at callsites requires
|
|
* passing in both the dispatch method and the payload to dispatch, which makes
|
|
* it only applicable for use within action creators.
|
|
*/
|
|
const debouncedValidateRecipientUserInput = debounce((dispatch, payload) => {
|
|
dispatch(validateRecipientUserInput(payload));
|
|
}, 300);
|
|
|
|
/**
|
|
* This method is called to update the user's input into the ENS input field.
|
|
* Once the field is updated, the field will be validated using a debounced
|
|
* version of the validateRecipientUserInput action. This way validation only
|
|
* occurs once the user has stopped typing.
|
|
* @param {string} userInput - the value that the user is typing into the field
|
|
* @returns {void}
|
|
*/
|
|
export function updateRecipientUserInput(userInput) {
|
|
return async (dispatch, getState) => {
|
|
await dispatch(actions.updateRecipientUserInput(userInput));
|
|
const state = getState();
|
|
const chainId = getCurrentChainId(state);
|
|
const tokens = getTokens(state);
|
|
debouncedValidateRecipientUserInput(dispatch, { chainId, tokens });
|
|
};
|
|
}
|
|
|
|
export function useContactListForRecipientSearch() {
|
|
return (dispatch) => {
|
|
dispatch(updateRecipientSearchMode(RECIPIENT_SEARCH_MODES.CONTACT_LIST));
|
|
};
|
|
}
|
|
|
|
export function useMyAccountsForRecipientSearch() {
|
|
return (dispatch) => {
|
|
dispatch(updateRecipientSearchMode(RECIPIENT_SEARCH_MODES.MY_ACCOUNTS));
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Updates the recipient in state based on the input provided, and then will
|
|
* recompute gas limit when sending a TOKEN asset type. Changing the recipient
|
|
* address results in hex data changing because the recipient address is
|
|
* encoded in the data instead of being in the 'to' field. The to field in a
|
|
* token send will always be the token contract address.
|
|
* If no nickname is provided, the address book state will be checked to see if
|
|
* a nickname for the passed address has already been saved. This ensures the
|
|
* (temporary) send state recipient nickname is consistent with the address book
|
|
* nickname which has already been persisted to state.
|
|
* @param {Object} recipient - Recipient information
|
|
* @param {string} recipient.address - hex address to send the transaction to
|
|
* @param {string} [recipient.nickname] - Alias for the address to display
|
|
* to the user
|
|
* @returns {void}
|
|
*/
|
|
export function updateRecipient({ address, nickname }) {
|
|
return async (dispatch, getState) => {
|
|
const state = getState();
|
|
const nicknameFromAddressBook =
|
|
getAddressBookEntry(state, address)?.name ?? '';
|
|
await dispatch(
|
|
actions.updateRecipient({
|
|
address,
|
|
nickname: nickname || nicknameFromAddressBook,
|
|
}),
|
|
);
|
|
await dispatch(computeEstimatedGasLimit());
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Clears out the recipient user input, ENS resolution and recipient validation
|
|
* @returns {void}
|
|
*/
|
|
export function resetRecipientInput() {
|
|
return async (dispatch) => {
|
|
await dispatch(updateRecipientUserInput(''));
|
|
await dispatch(updateRecipient({ address: '', nickname: '' }));
|
|
await dispatch(resetEnsResolution());
|
|
await dispatch(validateRecipientUserInput());
|
|
};
|
|
}
|
|
|
|
/**
|
|
* When a user has enabled hex data field in advanced settings they will be
|
|
* able to supply hex data on a transaction. This method updates the user
|
|
* supplied data. Note, when sending native assets this will result in
|
|
* recomputing estimated gasLimit. When sending a ERC20 asset this is not done
|
|
* because the data sent in the transaction will be determined by the asset,
|
|
* recipient and value, NOT what the user has supplied.
|
|
* @param {string} hexData - hex encoded string representing transaction data
|
|
* @returns {void}
|
|
*/
|
|
export function updateSendHexData(hexData) {
|
|
return async (dispatch, getState) => {
|
|
await dispatch(actions.updateUserInputHexData(hexData));
|
|
const state = getState();
|
|
if (state.send.asset.type === ASSET_TYPES.NATIVE) {
|
|
await dispatch(computeEstimatedGasLimit());
|
|
}
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Toggles the amount.mode between INPUT and MAX modes.
|
|
* As a result, the amount.value will change to either '0x0' when moving from
|
|
* MAX to INPUT, or to the maximum allowable amount based on current asset when
|
|
* moving from INPUT to MAX.
|
|
* @returns {void}
|
|
*/
|
|
export function toggleSendMaxMode() {
|
|
return async (dispatch, getState) => {
|
|
const state = getState();
|
|
if (state.send.amount.mode === AMOUNT_MODES.MAX) {
|
|
await dispatch(actions.updateAmountMode(AMOUNT_MODES.INPUT));
|
|
await dispatch(actions.updateSendAmount('0x0'));
|
|
} else {
|
|
await dispatch(actions.updateAmountMode(AMOUNT_MODES.MAX));
|
|
await dispatch(actions.updateAmountToMax());
|
|
}
|
|
await dispatch(computeEstimatedGasLimit());
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Signs a transaction or updates a transaction in state if editing.
|
|
* This method is called when a user clicks the next button in the footer of
|
|
* the send page, signaling that a transaction should be executed. This method
|
|
* will create the transaction in state (by way of the various global provider
|
|
* constructs) which will eventually (and fairly quickly from user perspective)
|
|
* result in a confirmation window being displayed for the transaction.
|
|
* @returns {void}
|
|
*/
|
|
export function signTransaction() {
|
|
return async (dispatch, getState) => {
|
|
const state = getState();
|
|
const {
|
|
asset,
|
|
stage,
|
|
draftTransaction: { id, txParams },
|
|
recipient: { address },
|
|
amount: { value },
|
|
eip1559support,
|
|
} = state[name];
|
|
if (stage === SEND_STAGES.EDIT) {
|
|
// When dealing with the edit flow there is already a transaction in
|
|
// state that we must update, this branch is responsible for that logic.
|
|
// We first must grab the previous transaction object from state and then
|
|
// merge in the modified txParams. Once the transaction has been modified
|
|
// we can send that to the background to update the transaction in state.
|
|
const unapprovedTxs = getUnapprovedTxs(state);
|
|
// We only update the tx params that can be changed via the edit flow UX
|
|
const eip1559OnlyTxParamsToUpdate = {
|
|
data: txParams.data,
|
|
from: txParams.from,
|
|
to: txParams.to,
|
|
value: txParams.value,
|
|
gas: txParams.gas,
|
|
};
|
|
const unapprovedTx = unapprovedTxs[id];
|
|
const editingTx = {
|
|
...unapprovedTx,
|
|
txParams: Object.assign(
|
|
unapprovedTx.txParams,
|
|
eip1559support ? eip1559OnlyTxParamsToUpdate : txParams,
|
|
),
|
|
};
|
|
dispatch(updateTransaction(editingTx));
|
|
} else if (asset.type === ASSET_TYPES.TOKEN) {
|
|
// When sending a token transaction we have to the token.transfer method
|
|
// on the token contract to construct the transaction. This results in
|
|
// the proper transaction data and properties being set and a new
|
|
// transaction being added to background state. Once the new transaction
|
|
// is added to state a subsequent confirmation will be queued.
|
|
try {
|
|
const token = global.eth.contract(abi).at(asset.details.address);
|
|
token.transfer(address, value, {
|
|
...txParams,
|
|
to: undefined,
|
|
data: undefined,
|
|
});
|
|
dispatch(showConfTxPage());
|
|
dispatch(hideLoadingIndication());
|
|
} catch (error) {
|
|
dispatch(hideLoadingIndication());
|
|
dispatch(displayWarning(error.message));
|
|
}
|
|
} else {
|
|
// When sending a native asset we use the ethQuery.sendTransaction method
|
|
// which will result in the transaction being added to background state
|
|
// and a subsequent confirmation will be queued.
|
|
global.ethQuery.sendTransaction(txParams, (err) => {
|
|
if (err) {
|
|
dispatch(displayWarning(err.message));
|
|
}
|
|
});
|
|
dispatch(showConfTxPage());
|
|
}
|
|
};
|
|
}
|
|
|
|
export function editTransaction(
|
|
assetType,
|
|
transactionId,
|
|
tokenData,
|
|
assetDetails,
|
|
) {
|
|
return async (dispatch, getState) => {
|
|
const state = getState();
|
|
const unapprovedTransactions = getUnapprovedTxs(state);
|
|
const transaction = unapprovedTransactions[transactionId];
|
|
const { txParams } = transaction;
|
|
if (assetType === ASSET_TYPES.NATIVE) {
|
|
const {
|
|
from,
|
|
gas: gasLimit,
|
|
gasPrice,
|
|
to: address,
|
|
value: amount,
|
|
} = txParams;
|
|
const nickname = getAddressBookEntry(state, address)?.name ?? '';
|
|
await dispatch(
|
|
actions.editTransaction({
|
|
id: transactionId,
|
|
gasLimit,
|
|
gasPrice,
|
|
from,
|
|
amount,
|
|
address,
|
|
nickname,
|
|
}),
|
|
);
|
|
} else if (!tokenData || !assetDetails) {
|
|
throw new Error(
|
|
`send/editTransaction dispatched with assetType 'TOKEN' but missing assetData or assetDetails parameter`,
|
|
);
|
|
} else {
|
|
const { from, to: tokenAddress, gas: gasLimit, gasPrice } = txParams;
|
|
const tokenAmountInDec = getTokenValueParam(tokenData);
|
|
const address = getTokenAddressParam(tokenData);
|
|
const nickname = getAddressBookEntry(state, address)?.name ?? '';
|
|
|
|
const tokenAmountInHex = addHexPrefix(
|
|
conversionUtil(tokenAmountInDec, {
|
|
fromNumericBase: 'dec',
|
|
toNumericBase: 'hex',
|
|
}),
|
|
);
|
|
|
|
await dispatch(
|
|
updateSendAsset({
|
|
type: ASSET_TYPES.TOKEN,
|
|
details: { ...assetDetails, address: tokenAddress },
|
|
}),
|
|
);
|
|
|
|
await dispatch(
|
|
actions.editTransaction({
|
|
id: transactionId,
|
|
gasLimit,
|
|
gasPrice,
|
|
from,
|
|
amount: tokenAmountInHex,
|
|
address,
|
|
nickname,
|
|
}),
|
|
);
|
|
}
|
|
};
|
|
}
|
|
|
|
// Selectors
|
|
|
|
// Gas selectors
|
|
export function getGasLimit(state) {
|
|
return state[name].gas.gasLimit;
|
|
}
|
|
|
|
export function getGasPrice(state) {
|
|
return state[name].gas.gasPrice;
|
|
}
|
|
|
|
export function getGasTotal(state) {
|
|
return state[name].gas.gasTotal;
|
|
}
|
|
|
|
export function gasFeeIsInError(state) {
|
|
return Boolean(state[name].gas.error);
|
|
}
|
|
|
|
export function getMinimumGasLimitForSend(state) {
|
|
return state[name].gas.minimumGasLimit;
|
|
}
|
|
|
|
export function getGasInputMode(state) {
|
|
const isMainnet = getIsMainnet(state);
|
|
const gasEstimateType = getGasEstimateType(state);
|
|
const showAdvancedGasFields = getAdvancedInlineGasShown(state);
|
|
if (state[name].gas.isCustomGasSet) {
|
|
return GAS_INPUT_MODES.CUSTOM;
|
|
}
|
|
if ((!isMainnet && !process.env.IN_TEST) || showAdvancedGasFields) {
|
|
return GAS_INPUT_MODES.INLINE;
|
|
}
|
|
|
|
// We get eth_gasPrice estimation if the legacy API fails but we need to
|
|
// instruct the UI to render the INLINE inputs in this case, only on
|
|
// mainnet or IN_TEST.
|
|
if (
|
|
(isMainnet || process.env.IN_TEST) &&
|
|
gasEstimateType === GAS_ESTIMATE_TYPES.ETH_GASPRICE
|
|
) {
|
|
return GAS_INPUT_MODES.INLINE;
|
|
}
|
|
return GAS_INPUT_MODES.BASIC;
|
|
}
|
|
|
|
// Asset Selectors
|
|
|
|
export function getSendAsset(state) {
|
|
return state[name].asset;
|
|
}
|
|
|
|
export function getSendAssetAddress(state) {
|
|
return getSendAsset(state)?.details?.address;
|
|
}
|
|
|
|
export function getIsAssetSendable(state) {
|
|
if (state[name].asset.type === ASSET_TYPES.NATIVE) {
|
|
return true;
|
|
}
|
|
return state[name].asset.details.isERC721 === false;
|
|
}
|
|
|
|
// Amount Selectors
|
|
export function getSendAmount(state) {
|
|
return state[name].amount.value;
|
|
}
|
|
|
|
export function getIsBalanceInsufficient(state) {
|
|
return state[name].gas.error === INSUFFICIENT_FUNDS_ERROR;
|
|
}
|
|
export function getSendMaxModeState(state) {
|
|
return state[name].amount.mode === AMOUNT_MODES.MAX;
|
|
}
|
|
|
|
export function getSendHexData(state) {
|
|
return state[name].draftTransaction.userInputHexData;
|
|
}
|
|
|
|
export function sendAmountIsInError(state) {
|
|
return Boolean(state[name].amount.error);
|
|
}
|
|
|
|
// Recipient Selectors
|
|
|
|
export function getSendTo(state) {
|
|
return state[name].recipient.address;
|
|
}
|
|
|
|
export function getIsUsingMyAccountForRecipientSearch(state) {
|
|
return state[name].recipient.mode === RECIPIENT_SEARCH_MODES.MY_ACCOUNTS;
|
|
}
|
|
|
|
export function getRecipientUserInput(state) {
|
|
return state[name].recipient.userInput;
|
|
}
|
|
|
|
export function getRecipient(state) {
|
|
return state[name].recipient;
|
|
}
|
|
|
|
// Overall validity and stage selectors
|
|
|
|
export function getSendErrors(state) {
|
|
return {
|
|
gasFee: state.send.gas.error,
|
|
amount: state.send.amount.error,
|
|
};
|
|
}
|
|
|
|
export function isSendStateInitialized(state) {
|
|
return state[name].stage !== SEND_STAGES.INACTIVE;
|
|
}
|
|
|
|
export function isSendFormInvalid(state) {
|
|
return state[name].status === SEND_STATUSES.INVALID;
|
|
}
|
|
|
|
export function getSendStage(state) {
|
|
return state[name].stage;
|
|
}
|
|
|