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metamask-extension/app/scripts/controllers/transactions/index.js
Mark Stacey 06d87fb98b
Refactor how network state is passed to transaction controller (#16922)
The network state is now passed to the TransactionController via a
getter function and a subscription function, instead of passing one of
the network controller stores directly.

This way of passing the state makes further refactoring easier, as we
don't have to change the input when the store is changed or replaced.
It's also more aligned with our conventions today.

This change was made as part of a larger refactor of the network
controller, as part of the effort to merge the mobile and extension
network controllers.
2022-12-13 15:43:12 -03:30

2573 lines
85 KiB
JavaScript

import EventEmitter from 'safe-event-emitter';
import { ObservableStore } from '@metamask/obs-store';
import { bufferToHex, keccak, toBuffer, isHexString } from 'ethereumjs-util';
import EthQuery from 'ethjs-query';
import { ethErrors } from 'eth-rpc-errors';
import Common from '@ethereumjs/common';
import { TransactionFactory } from '@ethereumjs/tx';
import NonceTracker from 'nonce-tracker';
import log from 'loglevel';
import BigNumber from 'bignumber.js';
import { merge, pickBy } from 'lodash';
import cleanErrorStack from '../../lib/cleanErrorStack';
import {
hexToBn,
bnToHex,
BnMultiplyByFraction,
addHexPrefix,
getChainType,
} from '../../lib/util';
import {
TRANSACTION_STATUSES,
TRANSACTION_TYPES,
TRANSACTION_APPROVAL_AMOUNT_TYPE,
TOKEN_STANDARDS,
TRANSACTION_ENVELOPE_TYPES,
TRANSACTION_EVENTS,
} from '../../../../shared/constants/transaction';
import { METAMASK_CONTROLLER_EVENTS } from '../../metamask-controller';
import {
GAS_LIMITS,
GAS_ESTIMATE_TYPES,
GAS_RECOMMENDATIONS,
CUSTOM_GAS_ESTIMATE,
PRIORITY_LEVELS,
} from '../../../../shared/constants/gas';
import { decGWEIToHexWEI } from '../../../../shared/modules/conversion.utils';
import { isSwapsDefaultTokenAddress } from '../../../../shared/modules/swaps.utils';
import { EVENT } from '../../../../shared/constants/metametrics';
import {
HARDFORKS,
CHAIN_ID_TO_GAS_LIMIT_BUFFER_MAP,
NETWORK_TYPES,
} from '../../../../shared/constants/network';
import {
determineTransactionAssetType,
determineTransactionContractCode,
determineTransactionType,
isEIP1559Transaction,
} from '../../../../shared/modules/transaction.utils';
import { ORIGIN_METAMASK } from '../../../../shared/constants/app';
import {
calcGasTotal,
decimalToHex,
getSwapsTokensReceivedFromTxMeta,
hexWEIToDecETH,
hexWEIToDecGWEI,
TRANSACTION_ENVELOPE_TYPE_NAMES,
} from '../../../../shared/lib/transactions-controller-utils';
import TransactionStateManager from './tx-state-manager';
import TxGasUtil from './tx-gas-utils';
import PendingTransactionTracker from './pending-tx-tracker';
import * as txUtils from './lib/util';
const MAX_MEMSTORE_TX_LIST_SIZE = 100; // Number of transactions (by unique nonces) to keep in memory
const UPDATE_POST_TX_BALANCE_TIMEOUT = 5000;
const SWAP_TRANSACTION_TYPES = [
TRANSACTION_TYPES.SWAP,
TRANSACTION_TYPES.SWAP_APPROVAL,
];
// Only certain types of transactions should be allowed to be specified when
// adding a new unapproved transaction.
const VALID_UNAPPROVED_TRANSACTION_TYPES = [
...SWAP_TRANSACTION_TYPES,
TRANSACTION_TYPES.SIMPLE_SEND,
TRANSACTION_TYPES.TOKEN_METHOD_TRANSFER,
TRANSACTION_TYPES.TOKEN_METHOD_TRANSFER_FROM,
TRANSACTION_TYPES.CONTRACT_INTERACTION,
];
/**
* @typedef {import('../../../../shared/constants/transaction').TransactionMeta} TransactionMeta
* @typedef {import('../../../../shared/constants/transaction').TransactionMetaMetricsEventString} TransactionMetaMetricsEventString
*/
const METRICS_STATUS_FAILED = 'failed on-chain';
/**
* @typedef {object} CustomGasSettings
* @property {string} [gas] - The gas limit to use for the transaction
* @property {string} [gasPrice] - The gasPrice to use for a legacy transaction
* @property {string} [maxFeePerGas] - The maximum amount to pay per gas on a
* EIP-1559 transaction
* @property {string} [maxPriorityFeePerGas] - The maximum amount of paid fee
* to be distributed to miner in an EIP-1559 transaction
*/
/**
* Transaction Controller is an aggregate of sub-controllers and trackers
* composing them in a way to be exposed to the metamask controller
*
* - `txStateManager
* responsible for the state of a transaction and
* storing the transaction
* - pendingTxTracker
* watching blocks for transactions to be include
* and emitting confirmed events
* - txGasUtil
* gas calculations and safety buffering
* - nonceTracker
* calculating nonces
*
* @param {object} opts
* @param {object} opts.initState - initial transaction list default is an empty array
* @param {Function} opts.getNetworkState - Get the current network state.
* @param {Function} opts.onNetworkStateChange - Subscribe to network state change events.
* @param {object} opts.blockTracker - An instance of eth-blocktracker
* @param {object} opts.provider - A network provider.
* @param {Function} opts.signTransaction - function the signs an @ethereumjs/tx
* @param {object} opts.getPermittedAccounts - get accounts that an origin has permissions for
* @param {Function} opts.signTransaction - ethTx signer that returns a rawTx
* @param {number} [opts.txHistoryLimit] - number *optional* for limiting how many transactions are in state
* @param {object} opts.preferencesStore
*/
export default class TransactionController extends EventEmitter {
constructor(opts) {
super();
this.getNetworkState = opts.getNetworkState;
this._getCurrentChainId = opts.getCurrentChainId;
this.getProviderConfig = opts.getProviderConfig;
this._getCurrentNetworkEIP1559Compatibility =
opts.getCurrentNetworkEIP1559Compatibility;
this._getCurrentAccountEIP1559Compatibility =
opts.getCurrentAccountEIP1559Compatibility;
this.preferencesStore = opts.preferencesStore || new ObservableStore({});
this.provider = opts.provider;
this.getPermittedAccounts = opts.getPermittedAccounts;
this.blockTracker = opts.blockTracker;
this.signEthTx = opts.signTransaction;
this.inProcessOfSigning = new Set();
this._trackMetaMetricsEvent = opts.trackMetaMetricsEvent;
this._getParticipateInMetrics = opts.getParticipateInMetrics;
this._getEIP1559GasFeeEstimates = opts.getEIP1559GasFeeEstimates;
this.createEventFragment = opts.createEventFragment;
this.updateEventFragment = opts.updateEventFragment;
this.finalizeEventFragment = opts.finalizeEventFragment;
this.getEventFragmentById = opts.getEventFragmentById;
this.getDeviceModel = opts.getDeviceModel;
this.getAccountType = opts.getAccountType;
this.getTokenStandardAndDetails = opts.getTokenStandardAndDetails;
this.memStore = new ObservableStore({});
this.resetState = () => {
this._updateMemstore();
};
this.query = new EthQuery(this.provider);
this.txGasUtil = new TxGasUtil(this.provider);
this._mapMethods();
this.txStateManager = new TransactionStateManager({
initState: opts.initState,
txHistoryLimit: opts.txHistoryLimit,
getNetworkState: this.getNetworkState,
getCurrentChainId: opts.getCurrentChainId,
});
this.store = this.txStateManager.store;
this.nonceTracker = new NonceTracker({
provider: this.provider,
blockTracker: this.blockTracker,
getPendingTransactions: (...args) => {
const pendingTransactions = this.txStateManager.getPendingTransactions(
...args,
);
const externalPendingTransactions = opts.getExternalPendingTransactions(
...args,
);
return [...pendingTransactions, ...externalPendingTransactions];
},
getConfirmedTransactions:
this.txStateManager.getConfirmedTransactions.bind(this.txStateManager),
});
this.pendingTxTracker = new PendingTransactionTracker({
provider: this.provider,
nonceTracker: this.nonceTracker,
publishTransaction: (rawTx) => this.query.sendRawTransaction(rawTx),
getPendingTransactions: () => {
const pending = this.txStateManager.getPendingTransactions();
const approved = this.txStateManager.getApprovedTransactions();
return [...pending, ...approved];
},
approveTransaction: this.approveTransaction.bind(this),
getCompletedTransactions:
this.txStateManager.getConfirmedTransactions.bind(this.txStateManager),
});
this.txStateManager.store.subscribe(() =>
this.emit(METAMASK_CONTROLLER_EVENTS.UPDATE_BADGE),
);
this._setupListeners();
// memstore is computed from a few different stores
this._updateMemstore();
this.txStateManager.store.subscribe(() => this._updateMemstore());
opts.onNetworkStateChange(() => {
this._onBootCleanUp();
this._updateMemstore();
});
// request state update to finalize initialization
this._updatePendingTxsAfterFirstBlock();
this._onBootCleanUp();
}
/**
* Gets the current chainId in the network store as a number, returning 0 if
* the chainId parses to NaN.
*
* @returns {number} The numerical chainId.
*/
getChainId() {
const networkState = this.getNetworkState();
const chainId = this._getCurrentChainId();
const integerChainId = parseInt(chainId, 16);
if (networkState === 'loading' || Number.isNaN(integerChainId)) {
return 0;
}
return integerChainId;
}
async getEIP1559Compatibility(fromAddress) {
const currentNetworkIsCompatible =
await this._getCurrentNetworkEIP1559Compatibility();
const fromAccountIsCompatible =
await this._getCurrentAccountEIP1559Compatibility(fromAddress);
return currentNetworkIsCompatible && fromAccountIsCompatible;
}
/**
* `@ethereumjs/tx` uses `@ethereumjs/common` as a configuration tool for
* specifying which chain, network, hardfork and EIPs to support for
* a transaction. By referencing this configuration, and analyzing the fields
* specified in txParams, `@ethereumjs/tx` is able to determine which EIP-2718
* transaction type to use.
*
* @param fromAddress
* @returns {Common} common configuration object
*/
async getCommonConfiguration(fromAddress) {
const { type, nickname: name } = this.getProviderConfig();
const supportsEIP1559 = await this.getEIP1559Compatibility(fromAddress);
// This logic below will have to be updated each time a hardfork happens
// that carries with it a new Transaction type. It is inconsequential for
// hardforks that do not include new types.
const hardfork = supportsEIP1559 ? HARDFORKS.LONDON : HARDFORKS.BERLIN;
// type will be one of our default network names or 'rpc'. the default
// network names are sufficient configuration, simply pass the name as the
// chain argument in the constructor.
if (type !== NETWORK_TYPES.RPC && type !== NETWORK_TYPES.SEPOLIA) {
return new Common({
chain: type,
hardfork,
});
}
// For 'rpc' we need to use the same basic configuration as mainnet,
// since we only support EVM compatible chains, and then override the
// name, chainId and networkId properties. This is done using the
// `forCustomChain` static method on the Common class.
const chainId = parseInt(this._getCurrentChainId(), 16);
const networkId = this.getNetworkState();
const customChainParams = {
name,
chainId,
// It is improbable for a transaction to be signed while the network
// is loading for two reasons.
// 1. Pending, unconfirmed transactions are wiped on network change
// 2. The UI is unusable (loading indicator) when network is loading.
// setting the networkId to 0 is for type safety and to explicity lead
// the transaction to failing if a user is able to get to this branch
// on a custom network that requires valid network id. I have not ran
// into this limitation on any network I have attempted, even when
// hardcoding networkId to 'loading'.
networkId: networkId === 'loading' ? 0 : parseInt(networkId, 10),
};
return Common.forCustomChain(
NETWORK_TYPES.MAINNET,
customChainParams,
hardfork,
);
}
/**
* Adds a tx to the txlist
*
* @param txMeta
* @fires ${txMeta.id}:unapproved
*/
addTransaction(txMeta) {
this.txStateManager.addTransaction(txMeta);
this.emit(`${txMeta.id}:unapproved`, txMeta);
this._trackTransactionMetricsEvent(
txMeta,
TRANSACTION_EVENTS.ADDED,
txMeta.actionId,
);
}
/**
* Wipes the transactions for a given account
*
* @param {string} address - hex string of the from address for txs being removed
*/
wipeTransactions(address) {
this.txStateManager.wipeTransactions(address);
}
/**
* Add a new unapproved transaction to the pipeline
*
* @returns {Promise<string>} the hash of the transaction after being submitted to the network
* @param {object} txParams - txParams for the transaction
* @param {object} opts - with the key origin to put the origin on the txMeta
*/
async newUnapprovedTransaction(txParams, opts = {}) {
log.debug(
`MetaMaskController newUnapprovedTransaction ${JSON.stringify(txParams)}`,
);
const initialTxMeta = await this.addUnapprovedTransaction(
txParams,
opts.origin,
);
// listen for tx completion (success, fail)
return new Promise((resolve, reject) => {
this.txStateManager.once(
`${initialTxMeta.id}:finished`,
(finishedTxMeta) => {
switch (finishedTxMeta.status) {
case TRANSACTION_STATUSES.SUBMITTED:
return resolve(finishedTxMeta.hash);
case TRANSACTION_STATUSES.REJECTED:
return reject(
cleanErrorStack(
ethErrors.provider.userRejectedRequest(
'MetaMask Tx Signature: User denied transaction signature.',
),
),
);
case TRANSACTION_STATUSES.FAILED:
return reject(
cleanErrorStack(
ethErrors.rpc.internal(finishedTxMeta.err.message),
),
);
default:
return reject(
cleanErrorStack(
ethErrors.rpc.internal(
`MetaMask Tx Signature: Unknown problem: ${JSON.stringify(
finishedTxMeta.txParams,
)}`,
),
),
);
}
},
);
});
}
// ====================================================================================================================================================
/**
* @param {number} txId
* @returns {TransactionMeta} the txMeta who matches the given id if none found
* for the network returns undefined
*/
_getTransaction(txId) {
const { transactions } = this.store.getState();
return transactions[txId];
}
/**
* @param {number} txId
* @returns {boolean}
*/
_isUnapprovedTransaction(txId) {
return (
this.txStateManager.getTransaction(txId).status ===
TRANSACTION_STATUSES.UNAPPROVED
);
}
/**
* @param {number} txId
* @param {string} fnName
*/
_throwErrorIfNotUnapprovedTx(txId, fnName) {
if (!this._isUnapprovedTransaction(txId)) {
throw new Error(
`TransactionsController: Can only call ${fnName} on an unapproved transaction.
Current tx status: ${this.txStateManager.getTransaction(txId).status}`,
);
}
}
_updateTransaction(txId, proposedUpdate, note) {
const txMeta = this.txStateManager.getTransaction(txId);
const updated = merge(txMeta, proposedUpdate);
this.txStateManager.updateTransaction(updated, note);
}
/**
* updates the params that are editible in the send edit flow
*
* @param {string} txId - transaction id
* @param {object} previousGasParams - holds the parameter to update
* @param {string} previousGasParams.maxFeePerGas
* @param {string} previousGasParams.maxPriorityFeePerGas
* @param {string} previousGasParams.gasLimit
* @returns {TransactionMeta} the txMeta of the updated transaction
*/
updatePreviousGasParams(
txId,
{ maxFeePerGas, maxPriorityFeePerGas, gasLimit },
) {
const previousGasParams = {
previousGas: {
maxFeePerGas,
maxPriorityFeePerGas,
gasLimit,
},
};
// only update what is defined
previousGasParams.previousGas = pickBy(previousGasParams.previousGas);
const note = `Update Previous Gas for ${txId}`;
this._updateTransaction(txId, previousGasParams, note);
return this._getTransaction(txId);
}
/**
*
* @param {string} txId - transaction id
* @param {object} editableParams - holds the eip1559 fees parameters
* @param {object} editableParams.data
* @param {string} editableParams.from
* @param {string} editableParams.to
* @param {string} editableParams.value
* @param {string} editableParams.gas
* @param {string} editableParams.gasPrice
* @returns {TransactionMeta} the txMeta of the updated transaction
*/
async updateEditableParams(txId, { data, from, to, value, gas, gasPrice }) {
this._throwErrorIfNotUnapprovedTx(txId, 'updateEditableParams');
const editableParams = {
txParams: {
data,
from,
to,
value,
gas,
gasPrice,
},
};
// only update what is defined
editableParams.txParams = pickBy(
editableParams.txParams,
(prop) => prop !== undefined,
);
// update transaction type in case it has changes
const transactionBeforeEdit = this._getTransaction(txId);
const { type } = await determineTransactionType(
{
...transactionBeforeEdit.txParams,
...editableParams.txParams,
},
this.query,
);
editableParams.type = type;
const note = `Update Editable Params for ${txId}`;
this._updateTransaction(txId, editableParams, note);
return this._getTransaction(txId);
}
/**
* updates the gas fees of the transaction with id if the transaction state is unapproved
*
* @param {string} txId - transaction id
* @param {object} txGasFees - holds the gas fees parameters
* @param {string} txGasFees.gasLimit
* @param {string} txGasFees.gasPrice
* @param {string} txGasFees.maxPriorityFeePerGas
* @param {string} txGasFees.maxFeePerGas
* @param {string} txGasFees.estimateUsed
* @param {string} txGasFees.estimateSuggested
* @param {string} txGasFees.defaultGasEstimates
* @param {string} txGasFees.gas
* @param {string} txGasFees.originalGasEstimate
* @param {string} txGasFees.userEditedGasLimit
* @param {string} txGasFees.userFeeLevel
* @returns {TransactionMeta} the txMeta of the updated transaction
*/
updateTransactionGasFees(
txId,
{
gas,
gasLimit,
gasPrice,
maxPriorityFeePerGas,
maxFeePerGas,
estimateUsed,
estimateSuggested,
defaultGasEstimates,
originalGasEstimate,
userEditedGasLimit,
userFeeLevel,
},
) {
this._throwErrorIfNotUnapprovedTx(txId, 'updateTransactionGasFees');
let txGasFees = {
txParams: {
gas,
gasLimit,
gasPrice,
maxPriorityFeePerGas,
maxFeePerGas,
},
estimateUsed,
estimateSuggested,
defaultGasEstimates,
originalGasEstimate,
userEditedGasLimit,
userFeeLevel,
};
// only update what is defined
txGasFees.txParams = pickBy(txGasFees.txParams);
txGasFees = pickBy(txGasFees);
const note = `Update Transaction Gas Fees for ${txId}`;
this._updateTransaction(txId, txGasFees, note);
return this._getTransaction(txId);
}
/**
* updates the estimate base fees of the transaction with id if the transaction state is unapproved
*
* @param {string} txId - transaction id
* @param {object} txEstimateBaseFees - holds the estimate base fees parameters
* @param {string} txEstimateBaseFees.estimatedBaseFee
* @param {string} txEstimateBaseFees.decEstimatedBaseFee
* @returns {TransactionMeta} the txMeta of the updated transaction
*/
updateTransactionEstimatedBaseFee(
txId,
{ estimatedBaseFee, decEstimatedBaseFee },
) {
this._throwErrorIfNotUnapprovedTx(
txId,
'updateTransactionEstimatedBaseFee',
);
let txEstimateBaseFees = { estimatedBaseFee, decEstimatedBaseFee };
// only update what is defined
txEstimateBaseFees = pickBy(txEstimateBaseFees);
const note = `Update Transaction Estimated Base Fees for ${txId}`;
this._updateTransaction(txId, txEstimateBaseFees, note);
return this._getTransaction(txId);
}
/**
* updates a swap approval transaction with provided metadata and source token symbol
* if the transaction state is unapproved.
*
* @param {string} txId
* @param {object} swapApprovalTransaction - holds the metadata and token symbol
* @param {string} swapApprovalTransaction.type
* @param {string} swapApprovalTransaction.sourceTokenSymbol
* @returns {TransactionMeta} the txMeta of the updated transaction
*/
updateSwapApprovalTransaction(txId, { type, sourceTokenSymbol }) {
this._throwErrorIfNotUnapprovedTx(txId, 'updateSwapApprovalTransaction');
let swapApprovalTransaction = { type, sourceTokenSymbol };
// only update what is defined
swapApprovalTransaction = pickBy(swapApprovalTransaction);
const note = `Update Swap Approval Transaction for ${txId}`;
this._updateTransaction(txId, swapApprovalTransaction, note);
return this._getTransaction(txId);
}
/**
* updates a swap transaction with provided metadata and source token symbol
* if the transaction state is unapproved.
*
* @param {string} txId
* @param {object} swapTransaction - holds the metadata
* @param {string} swapTransaction.sourceTokenSymbol
* @param {string} swapTransaction.destinationTokenSymbol
* @param {string} swapTransaction.type
* @param {string} swapTransaction.destinationTokenDecimals
* @param {string} swapTransaction.destinationTokenAddress
* @param {string} swapTransaction.swapMetaData
* @param {string} swapTransaction.swapTokenValue
* @param {string} swapTransaction.estimatedBaseFee
* @param {string} swapTransaction.approvalTxId
* @returns {TransactionMeta} the txMeta of the updated transaction
*/
updateSwapTransaction(
txId,
{
sourceTokenSymbol,
destinationTokenSymbol,
type,
destinationTokenDecimals,
destinationTokenAddress,
swapMetaData,
swapTokenValue,
estimatedBaseFee,
approvalTxId,
},
) {
this._throwErrorIfNotUnapprovedTx(txId, 'updateSwapTransaction');
let swapTransaction = {
sourceTokenSymbol,
destinationTokenSymbol,
type,
destinationTokenDecimals,
destinationTokenAddress,
swapMetaData,
swapTokenValue,
estimatedBaseFee,
approvalTxId,
};
// only update what is defined
swapTransaction = pickBy(swapTransaction);
const note = `Update Swap Transaction for ${txId}`;
this._updateTransaction(txId, swapTransaction, note);
return this._getTransaction(txId);
}
/**
* updates a transaction's user settings only if the transaction state is unapproved
*
* @param {string} txId
* @param {object} userSettings - holds the metadata
* @param {string} userSettings.userEditedGasLimit
* @param {string} userSettings.userFeeLevel
* @returns {TransactionMeta} the txMeta of the updated transaction
*/
updateTransactionUserSettings(txId, { userEditedGasLimit, userFeeLevel }) {
this._throwErrorIfNotUnapprovedTx(txId, 'updateTransactionUserSettings');
let userSettings = { userEditedGasLimit, userFeeLevel };
// only update what is defined
userSettings = pickBy(userSettings);
const note = `Update User Settings for ${txId}`;
this._updateTransaction(txId, userSettings, note);
return this._getTransaction(txId);
}
/**
* append new sendFlowHistory to the transaction with id if the transaction
* state is unapproved. Returns the updated transaction.
*
* @param {string} txId - transaction id
* @param {number} currentSendFlowHistoryLength - sendFlowHistory entries currently
* @param {Array<{ entry: string, timestamp: number }>} sendFlowHistory -
* history to add to the sendFlowHistory property of txMeta.
* @returns {TransactionMeta} the txMeta of the updated transaction
*/
updateTransactionSendFlowHistory(
txId,
currentSendFlowHistoryLength,
sendFlowHistory,
) {
this._throwErrorIfNotUnapprovedTx(txId, 'updateTransactionSendFlowHistory');
const txMeta = this._getTransaction(txId);
if (
currentSendFlowHistoryLength === (txMeta?.sendFlowHistory?.length || 0)
) {
// only update what is defined
const note = `Update sendFlowHistory for ${txId}`;
this.txStateManager.updateTransaction(
{
...txMeta,
sendFlowHistory: [
...(txMeta?.sendFlowHistory ?? []),
...sendFlowHistory,
],
},
note,
);
}
return this._getTransaction(txId);
}
async addTransactionGasDefaults(txMeta) {
const contractCode = await determineTransactionContractCode(
txMeta.txParams,
this.query,
);
let updateTxMeta = txMeta;
try {
updateTxMeta = await this.addTxGasDefaults(txMeta, contractCode);
} catch (error) {
log.warn(error);
updateTxMeta = this.txStateManager.getTransaction(txMeta.id);
updateTxMeta.loadingDefaults = false;
this.txStateManager.updateTransaction(
txMeta,
'Failed to calculate gas defaults.',
);
throw error;
}
updateTxMeta.loadingDefaults = false;
// The history note used here 'Added new unapproved transaction.' is confusing update call only updated the gas defaults.
// We need to improve `this.addTransaction` to accept history note and change note here.
this.txStateManager.updateTransaction(
updateTxMeta,
'Added new unapproved transaction.',
);
return updateTxMeta;
}
// ====================================================================================================================================================
/**
* Validates and generates a txMeta with defaults and puts it in txStateManager
* store.
*
* actionId is used to uniquely identify a request to create a transaction.
* Only 1 transaction will be created for multiple requests with same actionId.
* actionId is fix used for making this action idempotent to deal with scenario when
* action is invoked multiple times with same parameters in MV3 due to service worker re-activation.
*
* @param txParams
* @param origin
* @param transactionType
* @param sendFlowHistory
* @param actionId
* @returns {txMeta}
*/
async addUnapprovedTransaction(
txParams,
origin,
transactionType,
sendFlowHistory = [],
actionId,
) {
if (
transactionType !== undefined &&
!VALID_UNAPPROVED_TRANSACTION_TYPES.includes(transactionType)
) {
throw new Error(
`TransactionController - invalid transactionType value: ${transactionType}`,
);
}
// If a transaction is found with the same actionId, do not create a new speed-up transaction.
if (actionId) {
let existingTxMeta =
this.txStateManager.getTransactionWithActionId(actionId);
if (existingTxMeta) {
this.emit('newUnapprovedTx', existingTxMeta);
existingTxMeta = await this.addTransactionGasDefaults(existingTxMeta);
return existingTxMeta;
}
}
// validate
const normalizedTxParams = txUtils.normalizeTxParams(txParams);
const eip1559Compatibility = await this.getEIP1559Compatibility();
txUtils.validateTxParams(normalizedTxParams, eip1559Compatibility);
/**
* `generateTxMeta` adds the default txMeta properties to the passed object.
* These include the tx's `id`. As we use the id for determining order of
* txes in the tx-state-manager, it is necessary to call the asynchronous
* method `determineTransactionType` after `generateTxMeta`.
*/
let txMeta = this.txStateManager.generateTxMeta({
txParams: normalizedTxParams,
origin,
sendFlowHistory,
});
// Add actionId to txMeta to check if same actionId is seen again
// IF request to create transaction with same actionId is submitted again, new transaction will not be added for it.
if (actionId) {
txMeta.actionId = actionId;
}
if (origin === ORIGIN_METAMASK) {
// Assert the from address is the selected address
if (normalizedTxParams.from !== this.getSelectedAddress()) {
throw ethErrors.rpc.internal({
message: `Internally initiated transaction is using invalid account.`,
data: {
origin,
fromAddress: normalizedTxParams.from,
selectedAddress: this.getSelectedAddress(),
},
});
}
} else {
// Assert that the origin has permissions to initiate transactions from
// the specified address
const permittedAddresses = await this.getPermittedAccounts(origin);
if (!permittedAddresses.includes(normalizedTxParams.from)) {
throw ethErrors.provider.unauthorized({ data: { origin } });
}
}
const { type } = await determineTransactionType(txParams, this.query);
txMeta.type = transactionType || type;
// ensure value
txMeta.txParams.value = txMeta.txParams.value
? addHexPrefix(txMeta.txParams.value)
: '0x0';
this.addTransaction(txMeta);
this.emit('newUnapprovedTx', txMeta);
txMeta = await this.addTransactionGasDefaults(txMeta);
return txMeta;
}
/**
* Adds the tx gas defaults: gas && gasPrice
*
* @param {object} txMeta - the txMeta object
* @param getCodeResponse
* @returns {Promise<object>} resolves with txMeta
*/
async addTxGasDefaults(txMeta, getCodeResponse) {
const eip1559Compatibility =
txMeta.txParams.type !== TRANSACTION_ENVELOPE_TYPES.LEGACY &&
(await this.getEIP1559Compatibility());
const {
gasPrice: defaultGasPrice,
maxFeePerGas: defaultMaxFeePerGas,
maxPriorityFeePerGas: defaultMaxPriorityFeePerGas,
} = await this._getDefaultGasFees(txMeta, eip1559Compatibility);
const { gasLimit: defaultGasLimit, simulationFails } =
await this._getDefaultGasLimit(txMeta, getCodeResponse);
// eslint-disable-next-line no-param-reassign
txMeta = this.txStateManager.getTransaction(txMeta.id);
if (simulationFails) {
txMeta.simulationFails = simulationFails;
}
if (eip1559Compatibility) {
const advancedGasFeeDefaultValues = this.getAdvancedGasFee();
if (
Boolean(advancedGasFeeDefaultValues) &&
!SWAP_TRANSACTION_TYPES.includes(txMeta.type)
) {
txMeta.userFeeLevel = CUSTOM_GAS_ESTIMATE;
txMeta.txParams.maxFeePerGas = decGWEIToHexWEI(
advancedGasFeeDefaultValues.maxBaseFee,
);
txMeta.txParams.maxPriorityFeePerGas = decGWEIToHexWEI(
advancedGasFeeDefaultValues.priorityFee,
);
} else if (
txMeta.txParams.gasPrice &&
!txMeta.txParams.maxFeePerGas &&
!txMeta.txParams.maxPriorityFeePerGas
) {
// If the dapp has suggested a gas price, but no maxFeePerGas or maxPriorityFeePerGas
// then we set maxFeePerGas and maxPriorityFeePerGas to the suggested gasPrice.
txMeta.txParams.maxFeePerGas = txMeta.txParams.gasPrice;
txMeta.txParams.maxPriorityFeePerGas = txMeta.txParams.gasPrice;
if (txMeta.origin === ORIGIN_METAMASK) {
txMeta.userFeeLevel = CUSTOM_GAS_ESTIMATE;
} else {
txMeta.userFeeLevel = PRIORITY_LEVELS.DAPP_SUGGESTED;
}
} else {
if (
(defaultMaxFeePerGas &&
defaultMaxPriorityFeePerGas &&
!txMeta.txParams.maxFeePerGas &&
!txMeta.txParams.maxPriorityFeePerGas) ||
txMeta.origin === ORIGIN_METAMASK
) {
txMeta.userFeeLevel = GAS_RECOMMENDATIONS.MEDIUM;
} else {
txMeta.userFeeLevel = PRIORITY_LEVELS.DAPP_SUGGESTED;
}
if (defaultMaxFeePerGas && !txMeta.txParams.maxFeePerGas) {
// If the dapp has not set the gasPrice or the maxFeePerGas, then we set maxFeePerGas
// with the one returned by the gasFeeController, if that is available.
txMeta.txParams.maxFeePerGas = defaultMaxFeePerGas;
}
if (
defaultMaxPriorityFeePerGas &&
!txMeta.txParams.maxPriorityFeePerGas
) {
// If the dapp has not set the gasPrice or the maxPriorityFeePerGas, then we set maxPriorityFeePerGas
// with the one returned by the gasFeeController, if that is available.
txMeta.txParams.maxPriorityFeePerGas = defaultMaxPriorityFeePerGas;
}
if (defaultGasPrice && !txMeta.txParams.maxFeePerGas) {
// If the dapp has not set the gasPrice or the maxFeePerGas, and no maxFeePerGas is available
// from the gasFeeController, then we set maxFeePerGas to the defaultGasPrice, assuming it is
// available.
txMeta.txParams.maxFeePerGas = defaultGasPrice;
}
if (
txMeta.txParams.maxFeePerGas &&
!txMeta.txParams.maxPriorityFeePerGas
) {
// If the dapp has not set the gasPrice or the maxPriorityFeePerGas, and no maxPriorityFeePerGas is
// available from the gasFeeController, then we set maxPriorityFeePerGas to
// txMeta.txParams.maxFeePerGas, which will either be the gasPrice from the controller, the maxFeePerGas
// set by the dapp, or the maxFeePerGas from the controller.
txMeta.txParams.maxPriorityFeePerGas = txMeta.txParams.maxFeePerGas;
}
}
// We remove the gasPrice param entirely when on an eip1559 compatible network
delete txMeta.txParams.gasPrice;
} else {
// We ensure that maxFeePerGas and maxPriorityFeePerGas are not in the transaction params
// when not on a EIP1559 compatible network
delete txMeta.txParams.maxPriorityFeePerGas;
delete txMeta.txParams.maxFeePerGas;
}
// If we have gotten to this point, and none of gasPrice, maxPriorityFeePerGas or maxFeePerGas are
// set on txParams, it means that either we are on a non-EIP1559 network and the dapp didn't suggest
// a gas price, or we are on an EIP1559 network, and none of gasPrice, maxPriorityFeePerGas or maxFeePerGas
// were available from either the dapp or the network.
if (
defaultGasPrice &&
!txMeta.txParams.gasPrice &&
!txMeta.txParams.maxPriorityFeePerGas &&
!txMeta.txParams.maxFeePerGas
) {
txMeta.txParams.gasPrice = defaultGasPrice;
}
if (defaultGasLimit && !txMeta.txParams.gas) {
txMeta.txParams.gas = defaultGasLimit;
txMeta.originalGasEstimate = defaultGasLimit;
}
txMeta.defaultGasEstimates = {
estimateType: txMeta.userFeeLevel,
gas: txMeta.txParams.gas,
gasPrice: txMeta.txParams.gasPrice,
maxFeePerGas: txMeta.txParams.maxFeePerGas,
maxPriorityFeePerGas: txMeta.txParams.maxPriorityFeePerGas,
};
return txMeta;
}
/**
* Gets default gas fees, or returns `undefined` if gas fees are already set
*
* @param {object} txMeta - The txMeta object
* @param eip1559Compatibility
* @returns {Promise<string|undefined>} The default gas price
*/
async _getDefaultGasFees(txMeta, eip1559Compatibility) {
if (
(!eip1559Compatibility && txMeta.txParams.gasPrice) ||
(eip1559Compatibility &&
txMeta.txParams.maxFeePerGas &&
txMeta.txParams.maxPriorityFeePerGas)
) {
return {};
}
try {
const { gasFeeEstimates, gasEstimateType } =
await this._getEIP1559GasFeeEstimates();
if (
eip1559Compatibility &&
gasEstimateType === GAS_ESTIMATE_TYPES.FEE_MARKET
) {
const {
medium: { suggestedMaxPriorityFeePerGas, suggestedMaxFeePerGas } = {},
} = gasFeeEstimates;
if (suggestedMaxPriorityFeePerGas && suggestedMaxFeePerGas) {
return {
maxFeePerGas: decGWEIToHexWEI(suggestedMaxFeePerGas),
maxPriorityFeePerGas: decGWEIToHexWEI(
suggestedMaxPriorityFeePerGas,
),
};
}
} else if (gasEstimateType === GAS_ESTIMATE_TYPES.LEGACY) {
// The LEGACY type includes low, medium and high estimates of
// gas price values.
return {
gasPrice: decGWEIToHexWEI(gasFeeEstimates.medium),
};
} else if (gasEstimateType === GAS_ESTIMATE_TYPES.ETH_GASPRICE) {
// The ETH_GASPRICE type just includes a single gas price property,
// which we can assume was retrieved from eth_gasPrice
return {
gasPrice: decGWEIToHexWEI(gasFeeEstimates.gasPrice),
};
}
} catch (e) {
console.error(e);
}
const gasPrice = await this.query.gasPrice();
return { gasPrice: gasPrice && addHexPrefix(gasPrice.toString(16)) };
}
/**
* Gets default gas limit, or debug information about why gas estimate failed.
*
* @param {object} txMeta - The txMeta object
* @returns {Promise<object>} Object containing the default gas limit, or the simulation failure object
*/
async _getDefaultGasLimit(txMeta) {
const chainId = this._getCurrentChainId();
const customNetworkGasBuffer = CHAIN_ID_TO_GAS_LIMIT_BUFFER_MAP[chainId];
const chainType = getChainType(chainId);
if (txMeta.txParams.gas) {
return {};
} else if (
txMeta.txParams.to &&
txMeta.type === TRANSACTION_TYPES.SIMPLE_SEND &&
chainType !== 'custom' &&
!txMeta.txParams.data
) {
// This is a standard ether simple send, gas requirement is exactly 21k
return { gasLimit: GAS_LIMITS.SIMPLE };
}
const { blockGasLimit, estimatedGasHex, simulationFails } =
await this.txGasUtil.analyzeGasUsage(txMeta);
// add additional gas buffer to our estimation for safety
const gasLimit = this.txGasUtil.addGasBuffer(
addHexPrefix(estimatedGasHex),
blockGasLimit,
customNetworkGasBuffer,
);
return { gasLimit, simulationFails };
}
/**
* Given a TransactionMeta object, generate new gas params such that if the
* transaction was an EIP1559 transaction, it only has EIP1559 gas fields,
* otherwise it only has gasPrice. Will use whatever custom values are
* specified in customGasSettings, or falls back to incrementing by a percent
* which is defined by specifying a numerator. 11 is a 10% bump, 12 would be
* a 20% bump, and so on.
*
* @param {TransactionMeta} originalTxMeta - Original transaction to use as
* base
* @param {CustomGasSettings} [customGasSettings] - overrides for the gas
* fields to use instead of the multiplier
* @param {number} [incrementNumerator] - Numerator from which to generate a
* percentage bump of gas price. E.g 11 would be a 10% bump over base.
* @returns {{ newGasParams: CustomGasSettings, previousGasParams: CustomGasSettings }}
*/
generateNewGasParams(
originalTxMeta,
customGasSettings = {},
incrementNumerator = 11,
) {
const { txParams } = originalTxMeta;
const previousGasParams = {};
const newGasParams = {};
if (customGasSettings.gasLimit) {
newGasParams.gas = customGasSettings?.gas ?? GAS_LIMITS.SIMPLE;
}
if (customGasSettings.estimateSuggested) {
newGasParams.estimateSuggested = customGasSettings.estimateSuggested;
}
if (customGasSettings.estimateUsed) {
newGasParams.estimateUsed = customGasSettings.estimateUsed;
}
if (isEIP1559Transaction(originalTxMeta)) {
previousGasParams.maxFeePerGas = txParams.maxFeePerGas;
previousGasParams.maxPriorityFeePerGas = txParams.maxPriorityFeePerGas;
newGasParams.maxFeePerGas =
customGasSettings?.maxFeePerGas ||
bnToHex(
BnMultiplyByFraction(
hexToBn(txParams.maxFeePerGas),
incrementNumerator,
10,
),
);
newGasParams.maxPriorityFeePerGas =
customGasSettings?.maxPriorityFeePerGas ||
bnToHex(
BnMultiplyByFraction(
hexToBn(txParams.maxPriorityFeePerGas),
incrementNumerator,
10,
),
);
} else {
previousGasParams.gasPrice = txParams.gasPrice;
newGasParams.gasPrice =
customGasSettings?.gasPrice ||
bnToHex(
BnMultiplyByFraction(
hexToBn(txParams.gasPrice),
incrementNumerator,
10,
),
);
}
return { previousGasParams, newGasParams };
}
/**
* Creates a new approved transaction to attempt to cancel a previously submitted transaction. The
* new transaction contains the same nonce as the previous, is a basic ETH transfer of 0x value to
* the sender's address, and has a higher gasPrice than that of the previous transaction.
*
* @param {number} originalTxId - the id of the txMeta that you want to attempt to cancel
* @param {CustomGasSettings} [customGasSettings] - overrides to use for gas
* params instead of allowing this method to generate them
* @param options
* @param options.estimatedBaseFee
* @param options.actionId
* @returns {txMeta}
*/
async createCancelTransaction(
originalTxId,
customGasSettings,
{ estimatedBaseFee, actionId } = {},
) {
// If transaction is found for same action id, do not create a new cancel transaction.
if (actionId) {
const existingTxMeta =
this.txStateManager.getTransactionWithActionId(actionId);
if (existingTxMeta) {
return existingTxMeta;
}
}
const originalTxMeta = this.txStateManager.getTransaction(originalTxId);
const { txParams } = originalTxMeta;
const { from, nonce } = txParams;
const { previousGasParams, newGasParams } = this.generateNewGasParams(
originalTxMeta,
{
...customGasSettings,
// We want to override the previous transactions gasLimit because it
// will now be a simple send instead of whatever it was before such
// as a token transfer or contract call.
gasLimit: customGasSettings.gasLimit || GAS_LIMITS.SIMPLE,
},
);
const newTxMeta = this.txStateManager.generateTxMeta({
txParams: {
from,
to: from,
nonce,
value: '0x0',
...newGasParams,
},
previousGasParams,
loadingDefaults: false,
status: TRANSACTION_STATUSES.APPROVED,
type: TRANSACTION_TYPES.CANCEL,
actionId,
});
if (estimatedBaseFee) {
newTxMeta.estimatedBaseFee = estimatedBaseFee;
}
this.addTransaction(newTxMeta);
await this.approveTransaction(newTxMeta.id, actionId);
return newTxMeta;
}
/**
* Creates a new approved transaction to attempt to speed up a previously submitted transaction. The
* new transaction contains the same nonce as the previous. By default, the new transaction will use
* the same gas limit and a 10% higher gas price, though it is possible to set a custom value for
* each instead.
*
* @param {number} originalTxId - the id of the txMeta that you want to speed up
* @param {CustomGasSettings} [customGasSettings] - overrides to use for gas
* params instead of allowing this method to generate them
* @param options
* @param options.estimatedBaseFee
* @param options.actionId
* @returns {txMeta}
*/
async createSpeedUpTransaction(
originalTxId,
customGasSettings,
{ estimatedBaseFee, actionId } = {},
) {
// If transaction is found for same action id, do not create a new speed-up transaction.
if (actionId) {
const existingTxMeta =
this.txStateManager.getTransactionWithActionId(actionId);
if (existingTxMeta) {
return existingTxMeta;
}
}
const originalTxMeta = this.txStateManager.getTransaction(originalTxId);
const { txParams } = originalTxMeta;
const { previousGasParams, newGasParams } = this.generateNewGasParams(
originalTxMeta,
customGasSettings,
);
const newTxMeta = this.txStateManager.generateTxMeta({
txParams: {
...txParams,
...newGasParams,
},
previousGasParams,
loadingDefaults: false,
status: TRANSACTION_STATUSES.APPROVED,
type: TRANSACTION_TYPES.RETRY,
originalType: originalTxMeta.type,
actionId,
});
if (estimatedBaseFee) {
newTxMeta.estimatedBaseFee = estimatedBaseFee;
}
this.addTransaction(newTxMeta);
await this.approveTransaction(newTxMeta.id, actionId);
return newTxMeta;
}
/**
* updates the txMeta in the txStateManager
*
* @param {object} txMeta - the updated txMeta
*/
async updateTransaction(txMeta) {
this.txStateManager.updateTransaction(
txMeta,
'confTx: user updated transaction',
);
}
/**
* updates and approves the transaction
*
* @param {object} txMeta
* @param {string} actionId
*/
async updateAndApproveTransaction(txMeta, actionId) {
this.txStateManager.updateTransaction(
txMeta,
'confTx: user approved transaction',
);
await this.approveTransaction(txMeta.id, actionId);
}
/**
* sets the tx status to approved
* auto fills the nonce
* signs the transaction
* publishes the transaction
* if any of these steps fails the tx status will be set to failed
*
* @param {number} txId - the tx's Id
* @param {string} actionId - actionId passed from UI
*/
async approveTransaction(txId, actionId) {
// TODO: Move this safety out of this function.
// Since this transaction is async,
// we need to keep track of what is currently being signed,
// So that we do not increment nonce + resubmit something
// that is already being incremented & signed.
const txMeta = this.txStateManager.getTransaction(txId);
if (this.inProcessOfSigning.has(txId)) {
return;
}
this.inProcessOfSigning.add(txId);
let nonceLock;
try {
// approve
this.txStateManager.setTxStatusApproved(txId);
// get next nonce
const fromAddress = txMeta.txParams.from;
// wait for a nonce
let { customNonceValue } = txMeta;
customNonceValue = Number(customNonceValue);
nonceLock = await this.nonceTracker.getNonceLock(fromAddress);
// add nonce to txParams
// if txMeta has previousGasParams then it is a retry at same nonce with
// higher gas settings and therefor the nonce should not be recalculated
const nonce = txMeta.previousGasParams
? txMeta.txParams.nonce
: nonceLock.nextNonce;
const customOrNonce =
customNonceValue === 0 ? customNonceValue : customNonceValue || nonce;
txMeta.txParams.nonce = addHexPrefix(customOrNonce.toString(16));
// add nonce debugging information to txMeta
txMeta.nonceDetails = nonceLock.nonceDetails;
if (customNonceValue) {
txMeta.nonceDetails.customNonceValue = customNonceValue;
}
this.txStateManager.updateTransaction(
txMeta,
'transactions#approveTransaction',
);
// sign transaction
const rawTx = await this.signTransaction(txId);
await this.publishTransaction(txId, rawTx, actionId);
this._trackTransactionMetricsEvent(
txMeta,
TRANSACTION_EVENTS.APPROVED,
actionId,
);
// must set transaction to submitted/failed before releasing lock
nonceLock.releaseLock();
} catch (err) {
// this is try-catch wrapped so that we can guarantee that the nonceLock is released
try {
this._failTransaction(txId, err, actionId);
} catch (err2) {
log.error(err2);
}
// must set transaction to submitted/failed before releasing lock
if (nonceLock) {
nonceLock.releaseLock();
}
// continue with error chain
throw err;
} finally {
this.inProcessOfSigning.delete(txId);
}
}
async approveTransactionsWithSameNonce(listOfTxParams = []) {
if (listOfTxParams.length === 0) {
return '';
}
const initialTx = listOfTxParams[0];
const common = await this.getCommonConfiguration(initialTx.from);
const initialTxAsEthTx = TransactionFactory.fromTxData(initialTx, {
common,
});
const initialTxAsSerializedHex = bufferToHex(initialTxAsEthTx.serialize());
if (this.inProcessOfSigning.has(initialTxAsSerializedHex)) {
return '';
}
this.inProcessOfSigning.add(initialTxAsSerializedHex);
let rawTxes, nonceLock;
try {
// TODO: we should add a check to verify that all transactions have the same from address
const fromAddress = initialTx.from;
nonceLock = await this.nonceTracker.getNonceLock(fromAddress);
const nonce = nonceLock.nextNonce;
rawTxes = await Promise.all(
listOfTxParams.map((txParams) => {
txParams.nonce = addHexPrefix(nonce.toString(16));
return this.signExternalTransaction(txParams);
}),
);
} catch (err) {
log.error(err);
// must set transaction to submitted/failed before releasing lock
// continue with error chain
throw err;
} finally {
if (nonceLock) {
nonceLock.releaseLock();
}
this.inProcessOfSigning.delete(initialTxAsSerializedHex);
}
return rawTxes;
}
async signExternalTransaction(_txParams) {
const normalizedTxParams = txUtils.normalizeTxParams(_txParams);
// add network/chain id
const chainId = this.getChainId();
const type = isEIP1559Transaction({ txParams: normalizedTxParams })
? TRANSACTION_ENVELOPE_TYPES.FEE_MARKET
: TRANSACTION_ENVELOPE_TYPES.LEGACY;
const txParams = {
...normalizedTxParams,
type,
gasLimit: normalizedTxParams.gas,
chainId: addHexPrefix(decimalToHex(chainId)),
};
// sign tx
const fromAddress = txParams.from;
const common = await this.getCommonConfiguration(fromAddress);
const unsignedEthTx = TransactionFactory.fromTxData(txParams, { common });
const signedEthTx = await this.signEthTx(unsignedEthTx, fromAddress);
const rawTx = bufferToHex(signedEthTx.serialize());
return rawTx;
}
/**
* adds the chain id and signs the transaction and set the status to signed
*
* @param {number} txId - the tx's Id
* @returns {string} rawTx
*/
async signTransaction(txId) {
const txMeta = this.txStateManager.getTransaction(txId);
// add network/chain id
const chainId = this.getChainId();
const type = isEIP1559Transaction(txMeta)
? TRANSACTION_ENVELOPE_TYPES.FEE_MARKET
: TRANSACTION_ENVELOPE_TYPES.LEGACY;
const txParams = {
...txMeta.txParams,
type,
chainId,
gasLimit: txMeta.txParams.gas,
};
// sign tx
const fromAddress = txParams.from;
const common = await this.getCommonConfiguration(txParams.from);
const unsignedEthTx = TransactionFactory.fromTxData(txParams, { common });
const signedEthTx = await this.signEthTx(unsignedEthTx, fromAddress);
// add r,s,v values for provider request purposes see createMetamaskMiddleware
// and JSON rpc standard for further explanation
txMeta.r = bufferToHex(signedEthTx.r);
txMeta.s = bufferToHex(signedEthTx.s);
txMeta.v = bufferToHex(signedEthTx.v);
this.txStateManager.updateTransaction(
txMeta,
'transactions#signTransaction: add r, s, v values',
);
// set state to signed
this.txStateManager.setTxStatusSigned(txMeta.id);
const rawTx = bufferToHex(signedEthTx.serialize());
return rawTx;
}
/**
* publishes the raw tx and sets the txMeta to submitted
*
* @param {number} txId - the tx's Id
* @param {string} rawTx - the hex string of the serialized signed transaction
* @returns {Promise<void>}
* @param {number} actionId - actionId passed from UI
*/
async publishTransaction(txId, rawTx, actionId) {
const txMeta = this.txStateManager.getTransaction(txId);
txMeta.rawTx = rawTx;
if (txMeta.type === TRANSACTION_TYPES.SWAP) {
const preTxBalance = await this.query.getBalance(txMeta.txParams.from);
txMeta.preTxBalance = preTxBalance.toString(16);
}
this.txStateManager.updateTransaction(
txMeta,
'transactions#publishTransaction',
);
let txHash;
try {
txHash = await this.query.sendRawTransaction(rawTx);
} catch (error) {
if (error.message.toLowerCase().includes('known transaction')) {
txHash = keccak(toBuffer(addHexPrefix(rawTx), 'hex')).toString('hex');
txHash = addHexPrefix(txHash);
} else {
throw error;
}
}
this.setTxHash(txId, txHash);
this.txStateManager.setTxStatusSubmitted(txId);
this._trackTransactionMetricsEvent(
txMeta,
TRANSACTION_EVENTS.SUBMITTED,
actionId,
);
}
async updatePostTxBalance({ txMeta, txId, numberOfAttempts = 6 }) {
const postTxBalance = await this.query.getBalance(txMeta.txParams.from);
const latestTxMeta = this.txStateManager.getTransaction(txId);
const approvalTxMeta = latestTxMeta.approvalTxId
? this.txStateManager.getTransaction(latestTxMeta.approvalTxId)
: null;
latestTxMeta.postTxBalance = postTxBalance.toString(16);
const isDefaultTokenAddress = isSwapsDefaultTokenAddress(
txMeta.destinationTokenAddress,
txMeta.chainId,
);
if (
isDefaultTokenAddress &&
txMeta.preTxBalance === latestTxMeta.postTxBalance &&
numberOfAttempts > 0
) {
setTimeout(() => {
// If postTxBalance is the same as preTxBalance, try it again.
this.updatePostTxBalance({
txMeta,
txId,
numberOfAttempts: numberOfAttempts - 1,
});
}, UPDATE_POST_TX_BALANCE_TIMEOUT);
} else {
this.txStateManager.updateTransaction(
latestTxMeta,
'transactions#confirmTransaction - add postTxBalance',
);
this._trackSwapsMetrics(latestTxMeta, approvalTxMeta);
}
}
/**
* Sets the status of the transaction to confirmed and sets the status of nonce duplicates as
* dropped if the txParams have data it will fetch the txReceipt
*
* @param {number} txId - The tx's ID
* @param txReceipt
* @param baseFeePerGas
* @param blockTimestamp
* @returns {Promise<void>}
*/
async confirmTransaction(txId, txReceipt, baseFeePerGas, blockTimestamp) {
// get the txReceipt before marking the transaction confirmed
// to ensure the receipt is gotten before the ui revives the tx
const txMeta = this.txStateManager.getTransaction(txId);
if (!txMeta) {
return;
}
try {
const gasUsed = txUtils.normalizeTxReceiptGasUsed(txReceipt.gasUsed);
txMeta.txReceipt = {
...txReceipt,
gasUsed,
};
if (baseFeePerGas) {
txMeta.baseFeePerGas = baseFeePerGas;
}
if (blockTimestamp) {
txMeta.blockTimestamp = blockTimestamp;
}
this.txStateManager.setTxStatusConfirmed(txId);
this._markNonceDuplicatesDropped(txId);
const { submittedTime } = txMeta;
const metricsParams = { gas_used: gasUsed };
if (submittedTime) {
metricsParams.completion_time =
this._getTransactionCompletionTime(submittedTime);
}
if (txReceipt.status === '0x0') {
metricsParams.status = METRICS_STATUS_FAILED;
// metricsParams.error = TODO: figure out a way to get the on-chain failure reason
}
this._trackTransactionMetricsEvent(
txMeta,
TRANSACTION_EVENTS.FINALIZED,
undefined,
metricsParams,
);
this.txStateManager.updateTransaction(
txMeta,
'transactions#confirmTransaction - add txReceipt',
);
if (txMeta.type === TRANSACTION_TYPES.SWAP) {
await this.updatePostTxBalance({
txMeta,
txId,
});
}
} catch (err) {
log.error(err);
}
}
async confirmExternalTransaction(txMeta, txReceipt, baseFeePerGas) {
// add external transaction
await this.txStateManager.addExternalTransaction(txMeta);
if (!txMeta) {
return;
}
const txId = txMeta.id;
try {
const gasUsed = txUtils.normalizeTxReceiptGasUsed(txReceipt.gasUsed);
txMeta.txReceipt = {
...txReceipt,
gasUsed,
};
if (baseFeePerGas) {
txMeta.baseFeePerGas = baseFeePerGas;
}
this.txStateManager.setTxStatusConfirmed(txId);
this._markNonceDuplicatesDropped(txId);
const { submittedTime } = txMeta;
const metricsParams = { gas_used: gasUsed };
if (submittedTime) {
metricsParams.completion_time =
this._getTransactionCompletionTime(submittedTime);
}
if (txReceipt.status === '0x0') {
metricsParams.status = METRICS_STATUS_FAILED;
// metricsParams.error = TODO: figure out a way to get the on-chain failure reason
}
this._trackTransactionMetricsEvent(
txMeta,
TRANSACTION_EVENTS.FINALIZED,
undefined,
metricsParams,
);
this.txStateManager.updateTransaction(
txMeta,
'transactions#confirmTransaction - add txReceipt',
);
if (txMeta.type === TRANSACTION_TYPES.SWAP) {
await this.updatePostTxBalance({
txMeta,
txId,
});
}
} catch (err) {
log.error(err);
}
}
/**
* Convenience method for the ui thats sets the transaction to rejected
*
* @param {number} txId - the tx's Id
* @param {string} actionId - actionId passed from UI
* @returns {Promise<void>}
*/
async cancelTransaction(txId, actionId) {
const txMeta = this.txStateManager.getTransaction(txId);
this.txStateManager.setTxStatusRejected(txId);
this._trackTransactionMetricsEvent(
txMeta,
TRANSACTION_EVENTS.REJECTED,
actionId,
);
}
/**
* Sets the txHas on the txMeta
*
* @param {number} txId - the tx's Id
* @param {string} txHash - the hash for the txMeta
*/
setTxHash(txId, txHash) {
// Add the tx hash to the persisted meta-tx object
const txMeta = this.txStateManager.getTransaction(txId);
txMeta.hash = txHash;
this.txStateManager.updateTransaction(txMeta, 'transactions#setTxHash');
}
/**
* Convenience method for the UI to easily create event fragments when the
* fragment does not exist in state.
*
* @param {number} transactionId - The transaction id to create the event
* fragment for
* @param {valueOf<TRANSACTION_EVENTS>} event - event type to create
* @param {string} actionId - actionId passed from UI
*/
async createTransactionEventFragment(transactionId, event, actionId) {
const txMeta = this.txStateManager.getTransaction(transactionId);
const { properties, sensitiveProperties } =
await this._buildEventFragmentProperties(txMeta);
this._createTransactionEventFragment(
txMeta,
event,
properties,
sensitiveProperties,
actionId,
);
}
//
// PRIVATE METHODS
//
/** maps methods for convenience*/
_mapMethods() {
/** @returns {object} the state in transaction controller */
this.getState = () => this.memStore.getState();
/** @returns {string} the user selected address */
this.getSelectedAddress = () =>
this.preferencesStore.getState().selectedAddress;
/** @returns {Array} transactions whos status is unapproved */
this.getUnapprovedTxCount = () =>
Object.keys(this.txStateManager.getUnapprovedTxList()).length;
/**
* @returns {number} number of transactions that have the status submitted
* @param {string} account - hex prefixed account
*/
this.getPendingTxCount = (account) =>
this.txStateManager.getPendingTransactions(account).length;
/**
* see txStateManager
*
* @param opts
*/
this.getTransactions = (opts) => this.txStateManager.getTransactions(opts);
/** @returns {object} the saved default values for advancedGasFee */
this.getAdvancedGasFee = () =>
this.preferencesStore.getState().advancedGasFee;
}
// called once on startup
async _updatePendingTxsAfterFirstBlock() {
// wait for first block so we know we're ready
await this.blockTracker.getLatestBlock();
// get status update for all pending transactions (for the current network)
await this.pendingTxTracker.updatePendingTxs();
}
/**
* If transaction controller was rebooted with transactions that are uncompleted
* in steps of the transaction signing or user confirmation process it will either
* transition txMetas to a failed state or try to redo those tasks.
*/
_onBootCleanUp() {
this.txStateManager
.getTransactions({
searchCriteria: {
status: TRANSACTION_STATUSES.UNAPPROVED,
loadingDefaults: true,
},
})
.forEach((tx) => {
this.addTxGasDefaults(tx)
.then((txMeta) => {
txMeta.loadingDefaults = false;
this.txStateManager.updateTransaction(
txMeta,
'transactions: gas estimation for tx on boot',
);
})
.catch((error) => {
const txMeta = this.txStateManager.getTransaction(tx.id);
txMeta.loadingDefaults = false;
this.txStateManager.updateTransaction(
txMeta,
'failed to estimate gas during boot cleanup.',
);
this._failTransaction(txMeta.id, error);
});
});
this.txStateManager
.getTransactions({
searchCriteria: {
status: TRANSACTION_STATUSES.APPROVED,
},
})
.forEach((txMeta) => {
// Line below will try to publish transaction which is in
// APPROVED state at the time of controller bootup
this.approveTransaction(txMeta.id);
});
}
/**
* is called in constructor applies the listeners for pendingTxTracker txStateManager
* and blockTracker
*/
_setupListeners() {
this.txStateManager.on(
'tx:status-update',
this.emit.bind(this, 'tx:status-update'),
);
this._setupBlockTrackerListener();
this.pendingTxTracker.on('tx:warning', (txMeta) => {
this.txStateManager.updateTransaction(
txMeta,
'transactions/pending-tx-tracker#event: tx:warning',
);
});
this.pendingTxTracker.on('tx:failed', (txId, error) => {
this._failTransaction(txId, error);
});
this.pendingTxTracker.on(
'tx:confirmed',
(txId, transactionReceipt, baseFeePerGas, blockTimestamp) =>
this.confirmTransaction(
txId,
transactionReceipt,
baseFeePerGas,
blockTimestamp,
),
);
this.pendingTxTracker.on('tx:dropped', (txId) => {
this._dropTransaction(txId);
});
this.pendingTxTracker.on('tx:block-update', (txMeta, latestBlockNumber) => {
if (!txMeta.firstRetryBlockNumber) {
txMeta.firstRetryBlockNumber = latestBlockNumber;
this.txStateManager.updateTransaction(
txMeta,
'transactions/pending-tx-tracker#event: tx:block-update',
);
}
});
this.pendingTxTracker.on('tx:retry', (txMeta) => {
if (!('retryCount' in txMeta)) {
txMeta.retryCount = 0;
}
txMeta.retryCount += 1;
this.txStateManager.updateTransaction(
txMeta,
'transactions/pending-tx-tracker#event: tx:retry',
);
});
}
/**
* Sets other txMeta statuses to dropped if the txMeta that has been confirmed has other transactions
* in the list have the same nonce
*
* @param {number} txId - the txId of the transaction that has been confirmed in a block
*/
_markNonceDuplicatesDropped(txId) {
// get the confirmed transactions nonce and from address
const txMeta = this.txStateManager.getTransaction(txId);
const { nonce, from } = txMeta.txParams;
const sameNonceTxs = this.txStateManager.getTransactions({
searchCriteria: { nonce, from },
});
if (!sameNonceTxs.length) {
return;
}
// mark all same nonce transactions as dropped and give i a replacedBy hash
sameNonceTxs.forEach((otherTxMeta) => {
if (otherTxMeta.id === txId) {
return;
}
otherTxMeta.replacedBy = txMeta.hash;
otherTxMeta.replacedById = txMeta.id;
this.txStateManager.updateTransaction(
txMeta,
'transactions/pending-tx-tracker#event: tx:confirmed reference to confirmed txHash with same nonce',
);
// Drop any transaction that wasn't previously failed (off chain failure)
if (otherTxMeta.status !== TRANSACTION_STATUSES.FAILED) {
this._dropTransaction(otherTxMeta.id);
}
});
}
_setupBlockTrackerListener() {
let listenersAreActive = false;
const latestBlockHandler = this._onLatestBlock.bind(this);
const { blockTracker, txStateManager } = this;
txStateManager.on('tx:status-update', updateSubscription);
updateSubscription();
function updateSubscription() {
const pendingTxs = txStateManager.getPendingTransactions();
if (!listenersAreActive && pendingTxs.length > 0) {
blockTracker.on('latest', latestBlockHandler);
listenersAreActive = true;
} else if (listenersAreActive && !pendingTxs.length) {
blockTracker.removeListener('latest', latestBlockHandler);
listenersAreActive = false;
}
}
}
async _onLatestBlock(blockNumber) {
try {
await this.pendingTxTracker.updatePendingTxs();
} catch (err) {
log.error(err);
}
try {
await this.pendingTxTracker.resubmitPendingTxs(blockNumber);
} catch (err) {
log.error(err);
}
}
/**
* Updates the memStore in transaction controller
*/
_updateMemstore() {
const unapprovedTxs = this.txStateManager.getUnapprovedTxList();
const currentNetworkTxList = this.txStateManager.getTransactions({
limit: MAX_MEMSTORE_TX_LIST_SIZE,
});
this.memStore.updateState({ unapprovedTxs, currentNetworkTxList });
}
_calculateTransactionsCost(txMeta, approvalTxMeta) {
let approvalGasCost = '0x0';
if (approvalTxMeta?.txReceipt) {
approvalGasCost = calcGasTotal(
approvalTxMeta.txReceipt.gasUsed,
approvalTxMeta.txReceipt.effectiveGasPrice,
);
}
const tradeGasCost = calcGasTotal(
txMeta.txReceipt.gasUsed,
txMeta.txReceipt.effectiveGasPrice,
);
const tradeAndApprovalGasCost = new BigNumber(tradeGasCost, 16)
.plus(approvalGasCost, 16)
.toString(16);
return {
approvalGasCostInEth: Number(hexWEIToDecETH(approvalGasCost)),
tradeGasCostInEth: Number(hexWEIToDecETH(tradeGasCost)),
tradeAndApprovalGasCostInEth: Number(
hexWEIToDecETH(tradeAndApprovalGasCost),
),
};
}
_trackSwapsMetrics(txMeta, approvalTxMeta) {
if (this._getParticipateInMetrics() && txMeta.swapMetaData) {
if (txMeta.txReceipt.status === '0x0') {
this._trackMetaMetricsEvent({
event: 'Swap Failed',
sensitiveProperties: { ...txMeta.swapMetaData },
category: EVENT.CATEGORIES.SWAPS,
});
} else {
const tokensReceived = getSwapsTokensReceivedFromTxMeta(
txMeta.destinationTokenSymbol,
txMeta,
txMeta.destinationTokenAddress,
txMeta.txParams.from,
txMeta.destinationTokenDecimals,
approvalTxMeta,
txMeta.chainId,
);
const quoteVsExecutionRatio = tokensReceived
? `${new BigNumber(tokensReceived, 10)
.div(txMeta.swapMetaData.token_to_amount, 10)
.times(100)
.round(2)}%`
: null;
const estimatedVsUsedGasRatio =
txMeta.txReceipt.gasUsed && txMeta.swapMetaData.estimated_gas
? `${new BigNumber(txMeta.txReceipt.gasUsed, 16)
.div(txMeta.swapMetaData.estimated_gas, 10)
.times(100)
.round(2)}%`
: null;
const transactionsCost = this._calculateTransactionsCost(
txMeta,
approvalTxMeta,
);
this._trackMetaMetricsEvent({
event: 'Swap Completed',
category: EVENT.CATEGORIES.SWAPS,
sensitiveProperties: {
...txMeta.swapMetaData,
token_to_amount_received: tokensReceived,
quote_vs_executionRatio: quoteVsExecutionRatio,
estimated_vs_used_gasRatio: estimatedVsUsedGasRatio,
approval_gas_cost_in_eth: transactionsCost.approvalGasCostInEth,
trade_gas_cost_in_eth: transactionsCost.tradeGasCostInEth,
trade_and_approval_gas_cost_in_eth:
transactionsCost.tradeAndApprovalGasCostInEth,
},
});
}
}
}
/**
* The allowance amount in relation to the dapp proposed amount for specific token
*
* @param {string} transactionApprovalAmountType - The transaction approval amount type
* @param {string} originalApprovalAmount - The original approval amount is the originally dapp proposed token amount
* @param {string} finalApprovalAmount - The final approval amount is the chosen amount which will be the same as the
* originally dapp proposed token amount if the user does not edit the amount or will be a custom token amount set by the user
*/
_allowanceAmountInRelationToDappProposedValue(
transactionApprovalAmountType,
originalApprovalAmount,
finalApprovalAmount,
) {
if (
transactionApprovalAmountType ===
TRANSACTION_APPROVAL_AMOUNT_TYPE.CUSTOM &&
originalApprovalAmount &&
finalApprovalAmount
) {
return `${new BigNumber(originalApprovalAmount, 10)
.div(finalApprovalAmount, 10)
.times(100)
.round(2)}`;
}
return null;
}
/**
* The allowance amount in relation to the balance for that specific token
*
* @param {string} transactionApprovalAmountType - The transaction approval amount type
* @param {string} dappProposedTokenAmount - The dapp proposed token amount
* @param {string} currentTokenBalance - The balance of the token that is being send
*/
_allowanceAmountInRelationToTokenBalance(
transactionApprovalAmountType,
dappProposedTokenAmount,
currentTokenBalance,
) {
if (
(transactionApprovalAmountType ===
TRANSACTION_APPROVAL_AMOUNT_TYPE.CUSTOM ||
transactionApprovalAmountType ===
TRANSACTION_APPROVAL_AMOUNT_TYPE.DAPP_PROPOSED) &&
dappProposedTokenAmount &&
currentTokenBalance
) {
return `${new BigNumber(dappProposedTokenAmount, 16)
.div(currentTokenBalance, 10)
.times(100)
.round(2)}`;
}
return null;
}
async _buildEventFragmentProperties(txMeta, extraParams) {
const {
type,
time,
status,
chainId,
origin: referrer,
txParams: {
gasPrice,
gas: gasLimit,
maxFeePerGas,
maxPriorityFeePerGas,
estimateSuggested,
estimateUsed,
},
defaultGasEstimates,
originalType,
replacedById,
metamaskNetworkId: network,
customTokenAmount,
dappProposedTokenAmount,
currentTokenBalance,
originalApprovalAmount,
finalApprovalAmount,
contractMethodName,
} = txMeta;
const source = referrer === ORIGIN_METAMASK ? 'user' : 'dapp';
const { assetType, tokenStandard } = await determineTransactionAssetType(
txMeta,
this.query,
this.getTokenStandardAndDetails,
);
const gasParams = {};
if (isEIP1559Transaction(txMeta)) {
gasParams.max_fee_per_gas = maxFeePerGas;
gasParams.max_priority_fee_per_gas = maxPriorityFeePerGas;
} else {
gasParams.gas_price = gasPrice;
}
if (defaultGasEstimates) {
const { estimateType } = defaultGasEstimates;
if (estimateType) {
gasParams.default_estimate = estimateType;
let defaultMaxFeePerGas = txMeta.defaultGasEstimates.maxFeePerGas;
let defaultMaxPriorityFeePerGas =
txMeta.defaultGasEstimates.maxPriorityFeePerGas;
if (
[
GAS_RECOMMENDATIONS.LOW,
GAS_RECOMMENDATIONS.MEDIUM,
GAS_RECOMMENDATIONS.MEDIUM.HIGH,
].includes(estimateType)
) {
const { gasFeeEstimates } = await this._getEIP1559GasFeeEstimates();
if (gasFeeEstimates?.[estimateType]?.suggestedMaxFeePerGas) {
defaultMaxFeePerGas =
gasFeeEstimates[estimateType]?.suggestedMaxFeePerGas;
gasParams.default_max_fee_per_gas = defaultMaxFeePerGas;
}
if (gasFeeEstimates?.[estimateType]?.suggestedMaxPriorityFeePerGas) {
defaultMaxPriorityFeePerGas =
gasFeeEstimates[estimateType]?.suggestedMaxPriorityFeePerGas;
gasParams.default_max_priority_fee_per_gas =
defaultMaxPriorityFeePerGas;
}
}
}
if (txMeta.defaultGasEstimates.gas) {
gasParams.default_gas = txMeta.defaultGasEstimates.gas;
}
if (txMeta.defaultGasEstimates.gasPrice) {
gasParams.default_gas_price = txMeta.defaultGasEstimates.gasPrice;
}
}
if (estimateSuggested) {
gasParams.estimate_suggested = estimateSuggested;
}
if (estimateUsed) {
gasParams.estimate_used = estimateUsed;
}
if (extraParams?.gas_used) {
gasParams.gas_used = extraParams.gas_used;
}
const gasParamsInGwei = this._getGasValuesInGWEI(gasParams);
let eip1559Version = '0';
if (txMeta.txParams.maxFeePerGas) {
eip1559Version = '2';
}
const contractInteractionTypes = [
TRANSACTION_TYPES.CONTRACT_INTERACTION,
TRANSACTION_TYPES.TOKEN_METHOD_APPROVE,
TRANSACTION_TYPES.TOKEN_METHOD_SAFE_TRANSFER_FROM,
TRANSACTION_TYPES.TOKEN_METHOD_SET_APPROVAL_FOR_ALL,
TRANSACTION_TYPES.TOKEN_METHOD_TRANSFER,
TRANSACTION_TYPES.TOKEN_METHOD_TRANSFER_FROM,
TRANSACTION_TYPES.SMART,
TRANSACTION_TYPES.SWAP,
TRANSACTION_TYPES.SWAP_APPROVAL,
].includes(type);
const contractMethodNames = {
APPROVE: 'Approve',
};
let transactionApprovalAmountType;
let transactionContractMethod;
let transactionApprovalAmountVsProposedRatio;
let transactionApprovalAmountVsBalanceRatio;
let transactionType = TRANSACTION_TYPES.SIMPLE_SEND;
if (type === TRANSACTION_TYPES.CANCEL) {
transactionType = TRANSACTION_TYPES.CANCEL;
} else if (type === TRANSACTION_TYPES.RETRY) {
transactionType = originalType;
} else if (type === TRANSACTION_TYPES.DEPLOY_CONTRACT) {
transactionType = TRANSACTION_TYPES.DEPLOY_CONTRACT;
} else if (contractInteractionTypes) {
transactionType = TRANSACTION_TYPES.CONTRACT_INTERACTION;
transactionContractMethod = contractMethodName;
if (
transactionContractMethod === contractMethodNames.APPROVE &&
tokenStandard === TOKEN_STANDARDS.ERC20
) {
if (dappProposedTokenAmount === '0' || customTokenAmount === '0') {
transactionApprovalAmountType =
TRANSACTION_APPROVAL_AMOUNT_TYPE.REVOKE;
} else if (customTokenAmount) {
transactionApprovalAmountType =
TRANSACTION_APPROVAL_AMOUNT_TYPE.CUSTOM;
} else if (dappProposedTokenAmount) {
transactionApprovalAmountType =
TRANSACTION_APPROVAL_AMOUNT_TYPE.DAPP_PROPOSED;
}
transactionApprovalAmountVsProposedRatio =
this._allowanceAmountInRelationToDappProposedValue(
transactionApprovalAmountType,
originalApprovalAmount,
finalApprovalAmount,
);
transactionApprovalAmountVsBalanceRatio =
this._allowanceAmountInRelationToTokenBalance(
transactionApprovalAmountType,
dappProposedTokenAmount,
currentTokenBalance,
);
}
}
const replacedTxMeta = this._getTransaction(replacedById);
const TRANSACTION_REPLACEMENT_METHODS = {
RETRY: TRANSACTION_TYPES.RETRY,
CANCEL: TRANSACTION_TYPES.CANCEL,
SAME_NONCE: 'other',
};
let transactionReplaced;
if (extraParams?.dropped) {
transactionReplaced = TRANSACTION_REPLACEMENT_METHODS.SAME_NONCE;
if (replacedTxMeta?.type === TRANSACTION_TYPES.CANCEL) {
transactionReplaced = TRANSACTION_REPLACEMENT_METHODS.CANCEL;
} else if (replacedTxMeta?.type === TRANSACTION_TYPES.RETRY) {
transactionReplaced = TRANSACTION_REPLACEMENT_METHODS.RETRY;
}
}
let properties = {
chain_id: chainId,
referrer,
source,
network,
eip_1559_version: eip1559Version,
gas_edit_type: 'none',
gas_edit_attempted: 'none',
account_type: await this.getAccountType(this.getSelectedAddress()),
device_model: await this.getDeviceModel(this.getSelectedAddress()),
asset_type: assetType,
token_standard: tokenStandard,
transaction_type: transactionType,
transaction_speed_up: type === TRANSACTION_TYPES.RETRY,
};
if (transactionContractMethod === contractMethodNames.APPROVE) {
properties = {
...properties,
transaction_approval_amount_type: transactionApprovalAmountType,
};
}
let sensitiveProperties = {
status,
transaction_envelope_type: isEIP1559Transaction(txMeta)
? TRANSACTION_ENVELOPE_TYPE_NAMES.FEE_MARKET
: TRANSACTION_ENVELOPE_TYPE_NAMES.LEGACY,
first_seen: time,
gas_limit: gasLimit,
transaction_contract_method: transactionContractMethod,
transaction_replaced: transactionReplaced,
...extraParams,
...gasParamsInGwei,
};
if (transactionContractMethod === contractMethodNames.APPROVE) {
sensitiveProperties = {
...sensitiveProperties,
transaction_approval_amount_vs_balance_ratio:
transactionApprovalAmountVsBalanceRatio,
transaction_approval_amount_vs_proposed_ratio:
transactionApprovalAmountVsProposedRatio,
};
}
return { properties, sensitiveProperties };
}
/**
* Helper method that checks for the presence of an existing fragment by id
* appropriate for the type of event that triggered fragment creation. If the
* appropriate fragment exists, then nothing is done. If it does not exist a
* new event fragment is created with the appropriate payload.
*
* @param {TransactionMeta} txMeta - Transaction meta object
* @param {TransactionMetaMetricsEventString} event - The event type that
* triggered fragment creation
* @param {object} properties - properties to include in the fragment
* @param {object} [sensitiveProperties] - sensitive properties to include in
* @param {object} [actionId] - actionId passed from UI
* the fragment
*/
_createTransactionEventFragment(
txMeta,
event,
properties,
sensitiveProperties,
actionId,
) {
const isSubmitted = [
TRANSACTION_EVENTS.FINALIZED,
TRANSACTION_EVENTS.SUBMITTED,
].includes(event);
const uniqueIdentifier = `transaction-${
isSubmitted ? 'submitted' : 'added'
}-${txMeta.id}`;
const fragment = this.getEventFragmentById(uniqueIdentifier);
if (typeof fragment !== 'undefined') {
return;
}
switch (event) {
// When a transaction is added to the controller, we know that the user
// will be presented with a confirmation screen. The user will then
// either confirm or reject that transaction. Each has an associated
// event we want to track. While we don't necessarily need an event
// fragment to model this, having one allows us to record additional
// properties onto the event from the UI. For example, when the user
// edits the transactions gas params we can record that property and
// then get analytics on the number of transactions in which gas edits
// occur.
case TRANSACTION_EVENTS.ADDED:
this.createEventFragment({
category: EVENT.CATEGORIES.TRANSACTIONS,
initialEvent: TRANSACTION_EVENTS.ADDED,
successEvent: TRANSACTION_EVENTS.APPROVED,
failureEvent: TRANSACTION_EVENTS.REJECTED,
properties,
sensitiveProperties,
persist: true,
uniqueIdentifier,
actionId,
});
break;
// If for some reason an approval or rejection occurs without the added
// fragment existing in memory, we create the added fragment but without
// the initialEvent firing. This is to prevent possible duplication of
// events. A good example why this might occur is if the user had
// unapproved transactions in memory when updating to the version that
// includes this change. A migration would have also helped here but this
// implementation hardens against other possible bugs where a fragment
// does not exist.
case TRANSACTION_EVENTS.APPROVED:
case TRANSACTION_EVENTS.REJECTED:
this.createEventFragment({
category: EVENT.CATEGORIES.TRANSACTIONS,
successEvent: TRANSACTION_EVENTS.APPROVED,
failureEvent: TRANSACTION_EVENTS.REJECTED,
properties,
sensitiveProperties,
persist: true,
uniqueIdentifier,
actionId,
});
break;
// When a transaction is submitted it will always result in updating
// to a finalized state (dropped, failed, confirmed) -- eventually.
// However having a fragment started at this stage allows augmenting
// analytics data with user interactions such as speeding up and
// canceling the transactions. From this controllers perspective a new
// transaction with a new id is generated for speed up and cancel
// transactions, but from the UI we could augment the previous ID with
// supplemental data to show user intent. Such as when they open the
// cancel UI but don't submit. We can record that this happened and add
// properties to the transaction event.
case TRANSACTION_EVENTS.SUBMITTED:
this.createEventFragment({
category: EVENT.CATEGORIES.TRANSACTIONS,
initialEvent: TRANSACTION_EVENTS.SUBMITTED,
successEvent: TRANSACTION_EVENTS.FINALIZED,
properties,
sensitiveProperties,
persist: true,
uniqueIdentifier,
actionId,
});
break;
// If for some reason a transaction is finalized without the submitted
// fragment existing in memory, we create the submitted fragment but
// without the initialEvent firing. This is to prevent possible
// duplication of events. A good example why this might occur is if th
// user had pending transactions in memory when updating to the version
// that includes this change. A migration would have also helped here but
// this implementation hardens against other possible bugs where a
// fragment does not exist.
case TRANSACTION_EVENTS.FINALIZED:
this.createEventFragment({
category: EVENT.CATEGORIES.TRANSACTIONS,
successEvent: TRANSACTION_EVENTS.FINALIZED,
properties,
sensitiveProperties,
persist: true,
uniqueIdentifier,
actionId,
});
break;
default:
break;
}
}
/**
* Extracts relevant properties from a transaction meta
* object and uses them to create and send metrics for various transaction
* events.
*
* @param {object} txMeta - the txMeta object
* @param {TransactionMetaMetricsEventString} event - the name of the transaction event
* @param {string} actionId - actionId passed from UI
* @param {object} extraParams - optional props and values to include in sensitiveProperties
*/
async _trackTransactionMetricsEvent(
txMeta,
event,
actionId,
extraParams = {},
) {
if (!txMeta) {
return;
}
const { properties, sensitiveProperties } =
await this._buildEventFragmentProperties(txMeta, extraParams);
// Create event fragments for event types that spawn fragments, and ensure
// existence of fragments for event types that act upon them.
this._createTransactionEventFragment(
txMeta,
event,
properties,
sensitiveProperties,
actionId,
);
let id;
switch (event) {
// If the user approves a transaction, finalize the transaction added
// event fragment.
case TRANSACTION_EVENTS.APPROVED:
id = `transaction-added-${txMeta.id}`;
this.updateEventFragment(id, { properties, sensitiveProperties });
this.finalizeEventFragment(id);
break;
// If the user rejects a transaction, finalize the transaction added
// event fragment. with the abandoned flag set.
case TRANSACTION_EVENTS.REJECTED:
id = `transaction-added-${txMeta.id}`;
this.updateEventFragment(id, { properties, sensitiveProperties });
this.finalizeEventFragment(id, {
abandoned: true,
});
break;
// When a transaction is finalized, also finalize the transaction
// submitted event fragment.
case TRANSACTION_EVENTS.FINALIZED:
id = `transaction-submitted-${txMeta.id}`;
this.updateEventFragment(id, { properties, sensitiveProperties });
this.finalizeEventFragment(`transaction-submitted-${txMeta.id}`);
break;
default:
break;
}
}
_getTransactionCompletionTime(submittedTime) {
return Math.round((Date.now() - submittedTime) / 1000).toString();
}
_getGasValuesInGWEI(gasParams) {
const gasValuesInGwei = {};
for (const param in gasParams) {
if (isHexString(gasParams[param])) {
gasValuesInGwei[param] = hexWEIToDecGWEI(gasParams[param]);
} else {
gasValuesInGwei[param] = gasParams[param];
}
}
return gasValuesInGwei;
}
_failTransaction(txId, error, actionId) {
this.txStateManager.setTxStatusFailed(txId, error);
const txMeta = this.txStateManager.getTransaction(txId);
this._trackTransactionMetricsEvent(
txMeta,
TRANSACTION_EVENTS.FINALIZED,
actionId,
{
error: error.message,
},
);
}
_dropTransaction(txId) {
this.txStateManager.setTxStatusDropped(txId);
const txMeta = this.txStateManager.getTransaction(txId);
this._trackTransactionMetricsEvent(
txMeta,
TRANSACTION_EVENTS.FINALIZED,
undefined,
{
dropped: true,
},
);
}
}