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96 changed files with 2041 additions and 3776 deletions

@ -77,7 +77,7 @@ jobs:
- name: Rebuild and push updated images
run: |
function check_if_image_exists() {
curl -fsSlL "https://${{ github.actor }}:${{ github.token }}@${DOCKER_REGISTRY}/v2/${DOCKER_REPO}/tokenbridge-e2e-$1/manifests/$2" > /dev/null
curl -fsSlL -H 'Authorization: bearer ${{ github.token }}' "https://${DOCKER_REGISTRY}/v2/${DOCKER_REPO}/tokenbridge-e2e-$1/manifests/$2" > /dev/null
}
updated=()
if ! check_if_image_exists e2e ${E2E_TAG}; then updated+=("e2e"); fi
@ -104,7 +104,7 @@ jobs:
- name: Rebuild and push molecule runner e2e image
run: |
function check_if_image_exists() {
curl -fsSlL "https://${{ github.actor }}:${{ github.token }}@${DOCKER_REGISTRY}/v2/${DOCKER_REPO}/tokenbridge-e2e-$1/manifests/$2" > /dev/null
curl -fsSlL -H 'Authorization: bearer ${{ github.token }}' "https://${DOCKER_REGISTRY}/v2/${DOCKER_REPO}/tokenbridge-e2e-$1/manifests/$2" > /dev/null
}
if check_if_image_exists molecule_runner ${MOLECULE_RUNNER_TAG}; then
echo "Image already exists"

@ -8,11 +8,11 @@ COMMON_HOME_RPC_URL | The HTTPS URL(s) used to communicate to the RPC nodes in t
COMMON_FOREIGN_RPC_URL | The HTTPS URL(s) used to communicate to the RPC nodes in the Foreign network. Several URLs can be specified, delimited by spaces. If the connection to one of these nodes is lost the next URL is used for connection. | URL(s)
COMMON_HOME_BRIDGE_ADDRESS | The address of the bridge contract address in the Home network. It is used to listen to events from and send validators' transactions to the Home network. | hexidecimal beginning with "0x"
COMMON_FOREIGN_BRIDGE_ADDRESS | The address of the bridge contract address in the Foreign network. It is used to listen to events from and send validators' transactions to the Foreign network. | hexidecimal beginning with "0x"
COMMON_HOME_GAS_PRICE_SUPPLIER_URL | The URL used to get a JSON response from the gas price prediction oracle for the Home network. The gas price provided by the oracle is used to send the validator's transactions to the RPC node. Since it is assumed that the Home network has a predefined gas price (e.g. the gas price in the Core of POA.Network is `1 GWei`), the gas price oracle parameter can be omitted for such networks. Set to `eip1559-gas-estimation` if you want to use EIP1559 RPC-based gas estimation. | URL
COMMON_HOME_GAS_PRICE_SUPPLIER_URL | The URL used to get a JSON response from the gas price prediction oracle for the Home network. The gas price provided by the oracle is used to send the validator's transactions to the RPC node. Since it is assumed that the Home network has a predefined gas price (e.g. the gas price in the Core of POA.Network is `1 GWei`), the gas price oracle parameter can be omitted for such networks. | URL
COMMON_HOME_GAS_PRICE_SPEED_TYPE | Assuming the gas price oracle responds with the following JSON structure: `{"fast": 20.0, "block_time": 12.834, "health": true, "standard": 6.0, "block_number": 6470469, "instant": 71.0, "slow": 1.889}`, this parameter specifies the desirable transaction speed. The speed type can be omitted when `COMMON_HOME_GAS_PRICE_SUPPLIER_URL` is not used. | `instant` / `fast` / `standard` / `slow`
COMMON_HOME_GAS_PRICE_FALLBACK | The gas price (in Wei) that is used if both the oracle and the fall back gas price specified in the Home Bridge contract are not available. | integer
COMMON_HOME_GAS_PRICE_FACTOR | A value that will multiply the gas price of the oracle to convert it to gwei. If the oracle API returns gas prices in gwei then this can be set to `1`. Also, it could be used to intentionally pay more gas than suggested by the oracle to guarantee the transaction verification. E.g. `1.25` or `1.5`. | integer
COMMON_FOREIGN_GAS_PRICE_SUPPLIER_URL | The URL used to get a JSON response from the gas price prediction oracle for the Foreign network. The provided gas price is used to send the validator's transactions to the RPC node. If the Foreign network is Ethereum Foundation mainnet, the oracle URL can be: https://gasprice.poa.network. Otherwise this parameter can be omitted. Set to `gas-price-oracle` if you want to use npm `gas-price-oracle` package for retrieving gas price from multiple sources. Set to `eip1559-gas-estimation` if you want to use EIP1559 RPC-based gas estimation. | URL
COMMON_FOREIGN_GAS_PRICE_SUPPLIER_URL | The URL used to get a JSON response from the gas price prediction oracle for the Foreign network. The provided gas price is used to send the validator's transactions to the RPC node. If the Foreign network is Ethereum Foundation mainnet, the oracle URL can be: https://gasprice.poa.network. Otherwise this parameter can be omitted. Set to `gas-price-oracle` if you want to use npm `gas-price-oracle` package for retrieving gas price from multiple sources. | URL
COMMON_FOREIGN_GAS_PRICE_SPEED_TYPE | Assuming the gas price oracle responds with the following JSON structure: `{"fast": 20.0, "block_time": 12.834, "health": true, "standard": 6.0, "block_number": 6470469, "instant": 71.0, "slow": 1.889}`, this parameter specifies the desirable transaction speed. The speed type can be omitted when `COMMON_FOREIGN_GAS_PRICE_SUPPLIER_URL`is not used. | `instant` / `fast` / `standard` / `slow`
COMMON_FOREIGN_GAS_PRICE_FALLBACK | The gas price (in Wei) used if both the oracle and fall back gas price specified in the Foreign Bridge contract are not available. | integer
COMMON_FOREIGN_GAS_PRICE_FACTOR | A value that will multiply the gas price of the oracle to convert it to gwei. If the oracle API returns gas prices in gwei then this can be set to `1`. Also, it could be used to intentionally pay more gas than suggested by the oracle to guarantee the transaction verification. E.g. `1.25` or `1.5`. | integer
@ -52,15 +52,6 @@ ORACLE_SHUTDOWN_CONTRACT_ADDRESS | Optional contract address in the side chain a
ORACLE_SHUTDOWN_CONTRACT_METHOD | Method signature to be used in the side chain to identify the current shutdown status. Method should return boolean. Default value is `isShutdown()`. | `function signature`
ORACLE_FOREIGN_RPC_BLOCK_POLLING_LIMIT | Max length for the block range used in `eth_getLogs` requests for polling contract events for the Foreign chain. Infinite, if not provided. | `integer`
ORACLE_HOME_RPC_BLOCK_POLLING_LIMIT | Max length for the block range used in `eth_getLogs` requests for polling contract events for the Home chain. Infinite, if not provided. | `integer`
ORACLE_JSONRPC_ERROR_CODES | Override default JSON rpc error codes that can trigger RPC fallback to the next URL from the list (or a retry in case of a single RPC URL). Default is `-32603,-32002,-32005`. Should be a comma-separated list of negative integers. | `string`
ORACLE_HOME_EVENTS_REPROCESSING | If set to `true`, home events happened in the past will be refetched and processed once again, to ensure that nothing was missed on the first pass. | `bool`
ORACLE_HOME_EVENTS_REPROCESSING_BATCH_SIZE | Batch size for one `eth_getLogs` request when reprocessing old logs in the home chain. Defaults to `1000` | `integer`
ORACLE_HOME_EVENTS_REPROCESSING_BLOCK_DELAY | Block confirmations number, after which old logs are being reprocessed in the home chain. Defaults to `500` | `integer`
ORACLE_HOME_RPC_SYNC_STATE_CHECK_INTERVAL | Interval for checking JSON RPC sync state, by requesting the latest block number. Oracle will switch to the fallback JSON RPC in case sync process is stuck | `integer`
ORACLE_FOREIGN_EVENTS_REPROCESSING | If set to `true`, foreign events happened in the past will be refetched and processed once again, to ensure that nothing was missed on the first pass. | `bool`
ORACLE_FOREIGN_EVENTS_REPROCESSING_BATCH_SIZE | Batch size for one `eth_getLogs` request when reprocessing old logs in the foreign chain. Defaults to `500` | `integer`
ORACLE_FOREIGN_EVENTS_REPROCESSING_BLOCK_DELAY | Block confirmations number, after which old logs are being reprocessed in the foreign chain. Defaults to `250` | `integer`
ORACLE_FOREIGN_RPC_SYNC_STATE_CHECK_INTERVAL | Interval for checking JSON RPC sync state, by requesting the latest block number. Oracle will switch to the fallback JSON RPC in case sync process is stuck | `integer`
## Monitor configuration

@ -19,7 +19,6 @@ COPY --from=contracts /mono/contracts/build ./contracts/build
COPY commons/package.json ./commons/
COPY oracle-e2e/package.json ./oracle-e2e/
COPY monitor-e2e/package.json ./monitor-e2e/
COPY oracle/src/utils/constants.js ./oracle/src/utils/constants.js
COPY yarn.lock .
RUN NOYARNPOSTINSTALL=1 yarn install --frozen-lockfile --production

@ -19,7 +19,7 @@ Sub-repositories maintained within this monorepo are listed below.
| Sub-repository | Description |
| --- | --- |
| [Oracle](oracle/README.md) | Responsible for listening to bridge related events and authorizing asset transfers. |
| [Oracle](oracle/README.md) | Oracle responsible for listening to bridge related events and authorizing asset transfers. |
| [Monitor](monitor/README.md) | Tool for checking balances and unprocessed events in bridged networks. |
| [Deployment](deployment/README.md) | Ansible playbooks for deploying cross-chain bridges. |
| [Oracle-E2E](oracle-e2e/README.md) | End to end tests for the Oracle |

@ -1,9 +1,9 @@
import React, { useEffect, useState } from 'react'
import React from 'react'
import { TransactionReceipt } from 'web3-eth'
import { useMessageConfirmations } from '../hooks/useMessageConfirmations'
import { MessageObject } from '../utils/web3'
import styled from 'styled-components'
import { CONFIRMATIONS_STATUS, VALIDATOR_CONFIRMATION_STATUS } from '../config/constants'
import { CONFIRMATIONS_STATUS } from '../config/constants'
import { CONFIRMATIONS_STATUS_LABEL, CONFIRMATIONS_STATUS_LABEL_HOME } from '../config/descriptions'
import { SimpleLoading } from './commons/Loading'
import { ValidatorsConfirmations } from './ValidatorsConfirmations'
@ -54,9 +54,7 @@ export const ConfirmationsContainer = ({
home: { name: homeName },
foreign: { name: foreignName }
} = useStateProvider()
const src = useValidatorContract(fromHome, receipt ? receipt.blockNumber : 0)
const [executionBlockNumber, setExecutionBlockNumber] = useState(0)
const dst = useValidatorContract(!fromHome, executionBlockNumber || 'latest')
const { requiredSignatures, validatorList } = useValidatorContract({ fromHome, receipt })
const { blockConfirmations } = useBlockConfirmations({ fromHome, receipt })
const {
confirmations,
@ -73,21 +71,11 @@ export const ConfirmationsContainer = ({
fromHome,
homeStartBlock,
foreignStartBlock,
requiredSignatures: src.requiredSignatures,
validatorList: src.validatorList,
targetValidatorList: dst.validatorList,
requiredSignatures,
validatorList,
blockConfirmations
})
useEffect(
() => {
if (executionBlockNumber || executionData.status !== VALIDATOR_CONFIRMATION_STATUS.EXECUTION_SUCCESS) return
setExecutionBlockNumber(executionData.blockNumber)
},
[executionData.status, executionBlockNumber, executionData.blockNumber]
)
const statusLabel = fromHome ? CONFIRMATIONS_STATUS_LABEL_HOME : CONFIRMATIONS_STATUS_LABEL
const parseDescription = () => {
@ -126,22 +114,20 @@ export const ConfirmationsContainer = ({
</MultiLine>
</StatusDescription>
<ValidatorsConfirmations
confirmations={fromHome ? confirmations.filter(c => dst.validatorList.includes(c.validator)) : confirmations}
requiredSignatures={dst.requiredSignatures}
validatorList={dst.validatorList}
confirmations={confirmations}
requiredSignatures={requiredSignatures}
validatorList={validatorList}
waitingBlocksResolved={waitingBlocksResolved}
/>
{signatureCollected && (
<ExecutionConfirmation
message={message}
messageData={message.data}
executionData={executionData}
isHome={!fromHome}
confirmations={confirmations}
signatureCollected={signatureCollected}
setExecutionData={setExecutionData}
executionEventsFetched={executionEventsFetched}
setPendingExecution={setPendingExecution}
dstRequiredSignatures={dst.requiredSignatures}
dstValidatorList={dst.validatorList}
/>
)}
</StyledConfirmationContainer>

@ -4,47 +4,38 @@ import { useWindowWidth } from '@react-hook/window-size'
import { SEARCHING_TX, VALIDATOR_CONFIRMATION_STATUS, ALM_HOME_TO_FOREIGN_MANUAL_EXECUTION } from '../config/constants'
import { SimpleLoading } from './commons/Loading'
import styled from 'styled-components'
import { ConfirmationParam, ExecutionData } from '../hooks/useMessageConfirmations'
import { ExecutionData } from '../hooks/useMessageConfirmations'
import { GreyLabel, RedLabel, SuccessLabel } from './commons/Labels'
import { ExplorerTxLink } from './commons/ExplorerTxLink'
import { Thead, AgeTd, StatusTd } from './commons/Table'
import { ManualExecutionButton } from './ManualExecutionButton'
import { useStateProvider } from '../state/StateProvider'
import { matchesRule, MessageObject, WarnRule } from '../utils/web3'
import { WarningAlert } from './commons/WarningAlert'
import { ErrorAlert } from './commons/ErrorAlert'
const StyledExecutionConfirmation = styled.div`
margin-top: 30px;
`
export interface ExecutionConfirmationParams {
message: MessageObject
messageData: string
executionData: ExecutionData
setExecutionData: Function
confirmations: ConfirmationParam[]
signatureCollected: boolean | string[]
isHome: boolean
executionEventsFetched: boolean
setPendingExecution: Function
dstRequiredSignatures: number
dstValidatorList: string[]
}
export const ExecutionConfirmation = ({
message,
messageData,
executionData,
setExecutionData,
confirmations,
signatureCollected,
isHome,
executionEventsFetched,
setPendingExecution,
dstRequiredSignatures,
dstValidatorList
setPendingExecution
}: ExecutionConfirmationParams) => {
const { foreign } = useStateProvider()
const [safeExecutionAvailable, setSafeExecutionAvailable] = useState(false)
const [error, setError] = useState('')
const [warning, setWarning] = useState('')
const availableManualExecution =
!isHome &&
(executionData.status === VALIDATOR_CONFIRMATION_STATUS.WAITING ||
@ -76,27 +67,9 @@ export const ExecutionConfirmation = ({
[availableManualExecution, foreign.bridgeContract]
)
useEffect(
() => {
if (!message.data || !executionData || !availableManualExecution) return
try {
const fileName = 'warnRules'
const rules: WarnRule[] = require(`../snapshots/${fileName}.json`)
for (let rule of rules) {
if (matchesRule(rule, message)) {
setWarning(rule.message)
return
}
}
} catch (e) {}
},
[availableManualExecution, executionData, message, message.data, setWarning]
)
const getExecutionStatusElement = (validatorStatus = '') => {
switch (validatorStatus) {
case VALIDATOR_CONFIRMATION_STATUS.EXECUTION_SUCCESS:
case VALIDATOR_CONFIRMATION_STATUS.SUCCESS:
return <SuccessLabel>{validatorStatus}</SuccessLabel>
case VALIDATOR_CONFIRMATION_STATUS.FAILED:
return <RedLabel>{validatorStatus}</RedLabel>
@ -114,8 +87,6 @@ export const ExecutionConfirmation = ({
return (
<StyledExecutionConfirmation>
{error && <ErrorAlert onClick={() => setError('')} error={error} />}
{warning && <WarningAlert onClick={() => setWarning('')} error={warning} />}
<table>
<Thead>
<tr>
@ -154,13 +125,10 @@ export const ExecutionConfirmation = ({
<td>
<ManualExecutionButton
safeExecutionAvailable={safeExecutionAvailable}
messageData={message.data}
messageData={messageData}
setExecutionData={setExecutionData}
confirmations={confirmations}
signatureCollected={signatureCollected as string[]}
setPendingExecution={setPendingExecution}
setError={setError}
requiredSignatures={dstRequiredSignatures}
validatorList={dstValidatorList}
/>
</td>
)}

@ -8,6 +8,7 @@ import { TransactionReceipt } from 'web3-eth'
import { InfoAlert } from './commons/InfoAlert'
import { ExplorerTxLink } from './commons/ExplorerTxLink'
import { FOREIGN_NETWORK_NAME, HOME_NETWORK_NAME } from '../config/constants'
import { ErrorAlert } from './commons/ErrorAlert'
const StyledMainPage = styled.div`
text-align: center;
@ -51,7 +52,7 @@ export interface FormSubmitParams {
export const MainPage = () => {
const history = useHistory()
const { home, foreign } = useStateProvider()
const { home, foreign, error, setError } = useStateProvider()
const [networkName, setNetworkName] = useState('')
const [receipt, setReceipt] = useState<Maybe<TransactionReceipt>>(null)
const [showInfoAlert, setShowInfoAlert] = useState(false)
@ -131,6 +132,7 @@ export const MainPage = () => {
</AlertP>
</InfoAlert>
)}
{error && <ErrorAlert onClick={() => setError('')} error={error} />}
<Route exact path={['/']} children={<Form onSubmit={onFormSubmit} />} />
<Route
path={['/:chainId/:txHash/:messageIdParam', '/:chainId/:txHash']}

@ -14,7 +14,6 @@ import { useStateProvider } from '../state/StateProvider'
import { signatureToVRS, packSignatures } from '../utils/signatures'
import { getSuccessExecutionData } from '../utils/getFinalizationEvent'
import { TransactionReceipt } from 'web3-eth'
import { ConfirmationParam } from '../hooks/useMessageConfirmations'
const ActionButton = styled.button`
color: var(--button-color);
@ -31,75 +30,21 @@ interface ManualExecutionButtonParams {
safeExecutionAvailable: boolean
messageData: string
setExecutionData: Function
confirmations: ConfirmationParam[]
signatureCollected: string[]
setPendingExecution: Function
setError: Function
requiredSignatures: number
validatorList: string[]
}
export const ManualExecutionButton = ({
safeExecutionAvailable,
messageData,
setExecutionData,
confirmations,
setPendingExecution,
setError,
requiredSignatures,
validatorList
signatureCollected,
setPendingExecution
}: ManualExecutionButtonParams) => {
const { foreign } = useStateProvider()
const { foreign, setError } = useStateProvider()
const { library, activate, account, active } = useWeb3React()
const [manualExecution, setManualExecution] = useState(false)
const [allowFailures, setAllowFailures] = useState(false)
const [ready, setReady] = useState(false)
const [title, setTitle] = useState('Loading')
const [validSignatures, setValidSignatures] = useState<string[]>([])
useEffect(
() => {
if (
!foreign.bridgeContract ||
!foreign.web3 ||
!confirmations ||
!confirmations.length ||
!requiredSignatures ||
!validatorList ||
!validatorList.length
)
return
const signatures = []
for (let i = 0; i < confirmations.length && signatures.length < requiredSignatures; i++) {
const sig = confirmations[i].signature
if (!sig) {
continue
}
const { v, r, s } = signatureToVRS(sig)
const signer = foreign.web3.eth.accounts.recover(messageData, `0x${v}`, `0x${r}`, `0x${s}`)
if (validatorList.includes(signer)) {
signatures.push(sig)
}
}
if (signatures.length >= requiredSignatures) {
setValidSignatures(signatures.slice(0, requiredSignatures))
setTitle('Execute')
setReady(true)
} else {
setTitle('Unavailable')
}
},
[
foreign.bridgeContract,
foreign.web3,
validatorList,
requiredSignatures,
messageData,
setValidSignatures,
confirmations
]
)
useEffect(
() => {
@ -127,9 +72,9 @@ export const ManualExecutionButton = ({
return
}
if (!library || !foreign.bridgeContract || !foreign.web3 || !validSignatures || !validSignatures.length) return
if (!library || !foreign.bridgeContract || !signatureCollected || !signatureCollected.length) return
const signatures = packSignatures(validSignatures.map(signatureToVRS))
const signatures = packSignatures(signatureCollected.map(signatureToVRS))
const messageId = messageData.slice(0, 66)
const bridge = foreign.bridgeContract
const executeMethod =
@ -194,20 +139,19 @@ export const ManualExecutionButton = ({
foreign.bridgeContract,
setError,
messageData,
signatureCollected,
setExecutionData,
setPendingExecution,
safeExecutionAvailable,
allowFailures,
foreign.web3,
validSignatures
allowFailures
]
)
return (
<div>
<div className="is-center">
<ActionButton disabled={!ready} className="button outline" onClick={() => setManualExecution(true)}>
{title}
<ActionButton className="button outline" onClick={() => setManualExecution(true)}>
Execute
</ActionButton>
</div>
{safeExecutionAvailable && (

@ -1,7 +1,7 @@
import React from 'react'
import { formatTimestamp, formatTxHash, getExplorerTxUrl } from '../utils/networks'
import { useWindowWidth } from '@react-hook/window-size'
import { RECENT_AGE, SEARCHING_TX, VALIDATOR_CONFIRMATION_STATUS } from '../config/constants'
import { SEARCHING_TX, VALIDATOR_CONFIRMATION_STATUS } from '../config/constants'
import { SimpleLoading } from './commons/Loading'
import styled from 'styled-components'
import { ConfirmationParam } from '../hooks/useMessageConfirmations'
@ -31,9 +31,7 @@ export const ValidatorsConfirmations = ({
const getValidatorStatusElement = (validatorStatus = '') => {
switch (validatorStatus) {
case VALIDATOR_CONFIRMATION_STATUS.SUCCESS:
case VALIDATOR_CONFIRMATION_STATUS.MANUAL:
case VALIDATOR_CONFIRMATION_STATUS.FAILED_VALID:
return <SuccessLabel>{VALIDATOR_CONFIRMATION_STATUS.SUCCESS}</SuccessLabel>
return <SuccessLabel>{validatorStatus}</SuccessLabel>
case VALIDATOR_CONFIRMATION_STATUS.FAILED:
return <RedLabel>{validatorStatus}</RedLabel>
case VALIDATOR_CONFIRMATION_STATUS.PENDING:
@ -60,28 +58,26 @@ export const ValidatorsConfirmations = ({
</tr>
</Thead>
<tbody>
{confirmations.map((confirmation, i) => {
const displayedStatus = confirmation.status
const explorerLink = getExplorerTxUrl(confirmation.txHash, true)
let elementIfNoTimestamp: any = <SimpleLoading />
switch (displayedStatus) {
case '':
case VALIDATOR_CONFIRMATION_STATUS.UNDEFINED:
if (waitingBlocksResolved) {
elementIfNoTimestamp = SEARCHING_TX
}
break
case VALIDATOR_CONFIRMATION_STATUS.WAITING:
case VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED:
elementIfNoTimestamp = ''
break
case VALIDATOR_CONFIRMATION_STATUS.MANUAL:
elementIfNoTimestamp = RECENT_AGE
break
}
{validatorList.map((validator, i) => {
const filteredConfirmation = confirmations.filter(c => c.validator === validator)
const confirmation = filteredConfirmation.length > 0 ? filteredConfirmation[0] : null
const displayedStatus = confirmation && confirmation.status ? confirmation.status : ''
const explorerLink = confirmation && confirmation.txHash ? getExplorerTxUrl(confirmation.txHash, true) : ''
const elementIfNoTimestamp =
displayedStatus !== VALIDATOR_CONFIRMATION_STATUS.WAITING &&
displayedStatus !== VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED ? (
(displayedStatus === VALIDATOR_CONFIRMATION_STATUS.UNDEFINED || displayedStatus === '') &&
waitingBlocksResolved ? (
SEARCHING_TX
) : (
<SimpleLoading />
)
) : (
''
)
return (
<tr key={i}>
<td>{windowWidth < 850 ? formatTxHash(confirmation.validator) : confirmation.validator}</td>
<td>{windowWidth < 850 ? formatTxHash(validator) : validator}</td>
<StatusTd className="text-center">{getValidatorStatusElement(displayedStatus)}</StatusTd>
<AgeTd className="text-center">
{confirmation && confirmation.timestamp > 0 ? (
@ -98,7 +94,7 @@ export const ValidatorsConfirmations = ({
</tbody>
</table>
<RequiredConfirmations>
At least <strong>{requiredSignatures}</strong> of <strong>{validatorList.length}</strong> confirmations required
{requiredSignatures} of {validatorList.length} confirmations required
</RequiredConfirmations>
</div>
)

@ -33,7 +33,7 @@ export const ErrorAlert = ({ onClick, error }: { onClick: () => void; error: str
}
return (
<div className="row is-center">
<StyledErrorAlert className="col-12 is-vertical-align row">
<StyledErrorAlert className="col-10 is-vertical-align row">
<InfoIcon color="var(--failed-color)" />
<TextContainer className="col-10">
{text}

@ -1,34 +0,0 @@
import React from 'react'
import styled from 'styled-components'
import { InfoIcon } from './InfoIcon'
import { CloseIcon } from './CloseIcon'
const StyledErrorAlert = styled.div`
border: 1px solid var(--warning-color);
border-radius: 4px;
margin-bottom: 20px;
padding-top: 10px;
`
const CloseIconContainer = styled.div`
cursor: pointer;
`
const TextContainer = styled.div`
white-space: pre-wrap;
flex-direction: column;
`
export const WarningAlert = ({ onClick, error }: { onClick: () => void; error: string }) => {
return (
<div className="row is-center">
<StyledErrorAlert className="col-12 is-vertical-align row">
<InfoIcon color="var(--warning-color)" />
<TextContainer className="col-10">{error}</TextContainer>
<CloseIconContainer className="col-1 is-vertical-align is-center" onClick={onClick}>
<CloseIcon color="var(--warning-color)" />
</CloseIconContainer>
</StyledErrorAlert>
</div>
)
}

@ -54,19 +54,14 @@ export const CONFIRMATIONS_STATUS = {
}
export const VALIDATOR_CONFIRMATION_STATUS = {
SUCCESS: 'Confirmed',
MANUAL: 'Manual',
EXECUTION_SUCCESS: 'Executed',
SUCCESS: 'Success',
FAILED: 'Failed',
FAILED_VALID: 'Failed valid',
PENDING: 'Pending',
WAITING: 'Waiting',
NOT_REQUIRED: 'Not required',
UNDEFINED: 'UNDEFINED'
}
export const RECENT_AGE = 'Recent'
export const SEARCHING_TX = 'Searching Transaction...'
export const INCORRECT_CHAIN_ERROR = `Incorrect chain chosen. Switch to ${FOREIGN_NETWORK_NAME} in the wallet.`

@ -29,16 +29,17 @@ export interface useMessageConfirmationsParams {
foreignStartBlock: Maybe<number>
requiredSignatures: number
validatorList: string[]
targetValidatorList: string[]
blockConfirmations: number
}
export interface ConfirmationParam {
export interface BasicConfirmationParam {
validator: string
status: string
}
export interface ConfirmationParam extends BasicConfirmationParam {
txHash: string
timestamp: number
signature?: string
}
export interface ExecutionData {
@ -47,7 +48,6 @@ export interface ExecutionData {
txHash: string
timestamp: number
executionResult: boolean
blockNumber: number
}
export const useMessageConfirmations = ({
@ -58,7 +58,6 @@ export const useMessageConfirmations = ({
foreignStartBlock,
requiredSignatures,
validatorList,
targetValidatorList,
blockConfirmations
}: useMessageConfirmationsParams) => {
const { home, foreign } = useStateProvider()
@ -66,7 +65,7 @@ export const useMessageConfirmations = ({
const [status, setStatus] = useState(CONFIRMATIONS_STATUS.UNDEFINED)
const [waitingBlocks, setWaitingBlocks] = useState(false)
const [waitingBlocksResolved, setWaitingBlocksResolved] = useState(false)
const [signatureCollected, setSignatureCollected] = useState(false)
const [signatureCollected, setSignatureCollected] = useState<boolean | string[]>(false)
const [executionEventsFetched, setExecutionEventsFetched] = useState(false)
const [collectedSignaturesEvent, setCollectedSignaturesEvent] = useState<Maybe<EventData>>(null)
const [executionData, setExecutionData] = useState<ExecutionData>({
@ -74,8 +73,7 @@ export const useMessageConfirmations = ({
validator: '',
txHash: '',
timestamp: 0,
executionResult: false,
blockNumber: 0
executionResult: false
})
const [waitingBlocksForExecution, setWaitingBlocksForExecution] = useState(false)
const [waitingBlocksForExecutionResolved, setWaitingBlocksForExecutionResolved] = useState(false)
@ -142,9 +140,10 @@ export const useMessageConfirmations = ({
// The collected signature event is only fetched once the signatures are collected on tx from home to foreign, to calculate if
// the execution tx on the foreign network is waiting for block confirmations
// This is executed if the message is in Home to Foreign direction only
const hasCollectedSignatures = !!signatureCollected // true or string[]
useEffect(
() => {
if (!fromHome || !receipt || !home.web3 || !home.bridgeContract || !signatureCollected) return
if (!fromHome || !receipt || !home.web3 || !home.bridgeContract || !hasCollectedSignatures) return
let timeoutId: number
let isCancelled = false
@ -180,7 +179,7 @@ export const useMessageConfirmations = ({
isCancelled = true
}
},
[fromHome, home.bridgeContract, home.web3, message.data, receipt, signatureCollected]
[fromHome, home.bridgeContract, home.web3, message.data, receipt, hasCollectedSignatures]
)
// Check if the responsible validator is waiting for block confirmations to execute the message on foreign network
@ -253,35 +252,6 @@ export const useMessageConfirmations = ({
let timeoutId: number
let isCancelled = false
if (fromHome) {
if (!targetValidatorList || !targetValidatorList.length) return
const msgHash = home.web3.utils.sha3(message.data)!
const allValidators = [...validatorList, ...targetValidatorList].filter((v, i, s) => s.indexOf(v) === i)
const manualConfirmations = []
for (let i = 0; i < allValidators.length; i++) {
try {
const overrideSignatures: {
[key: string]: string
} = require(`../snapshots/signatures_${allValidators[i]}.json`)
if (overrideSignatures[msgHash]) {
console.log(`Adding manual signature from ${allValidators[i]}`)
manualConfirmations.push({
status: VALIDATOR_CONFIRMATION_STATUS.MANUAL,
validator: allValidators[i],
timestamp: 0,
txHash: '',
signature: overrideSignatures[msgHash]
})
} else {
console.log(`No manual signature from ${allValidators[i]} was found`)
}
} catch (e) {
console.log(`Signatures overrides are not present for ${allValidators[i]}`)
}
}
setConfirmations(manualConfirmations)
}
getConfirmationsForTx(
message.data,
home.web3,
@ -314,8 +284,7 @@ export const useMessageConfirmations = ({
home.bridgeContract,
requiredSignatures,
waitingBlocksResolved,
homeStartBlock,
targetValidatorList
homeStartBlock
]
)
@ -374,10 +343,7 @@ export const useMessageConfirmations = ({
// Sets the message status based in the collected information
useEffect(
() => {
if (
executionData.status === VALIDATOR_CONFIRMATION_STATUS.EXECUTION_SUCCESS &&
existsConfirmation(confirmations)
) {
if (executionData.status === VALIDATOR_CONFIRMATION_STATUS.SUCCESS && existsConfirmation(confirmations)) {
const newStatus = executionData.executionResult
? CONFIRMATIONS_STATUS.SUCCESS
: CONFIRMATIONS_STATUS.SUCCESS_MESSAGE_FAILED

@ -4,13 +4,19 @@ import Web3 from 'web3'
import { getRequiredSignatures, getValidatorAddress, getValidatorList } from '../utils/contract'
import { BRIDGE_VALIDATORS_ABI } from '../abis'
import { useStateProvider } from '../state/StateProvider'
import { TransactionReceipt } from 'web3-eth'
import { foreignSnapshotProvider, homeSnapshotProvider, SnapshotProvider } from '../services/SnapshotProvider'
import { FOREIGN_EXPLORER_API, HOME_EXPLORER_API } from '../config/constants'
export const useValidatorContract = (isHome: boolean, blockNumber: number | 'latest') => {
export interface useValidatorContractParams {
fromHome: boolean
receipt: Maybe<TransactionReceipt>
}
export const useValidatorContract = ({ receipt, fromHome }: useValidatorContractParams) => {
const [validatorContract, setValidatorContract] = useState<Maybe<Contract>>(null)
const [requiredSignatures, setRequiredSignatures] = useState(0)
const [validatorList, setValidatorList] = useState<string[]>([])
const [validatorList, setValidatorList] = useState([])
const { home, foreign } = useStateProvider()
@ -23,34 +29,34 @@ export const useValidatorContract = (isHome: boolean, blockNumber: number | 'lat
const callRequiredSignatures = async (
contract: Maybe<Contract>,
blockNumber: number | 'latest',
receipt: TransactionReceipt,
setResult: Function,
snapshotProvider: SnapshotProvider,
web3: Web3,
api: string
) => {
if (!contract) return
const result = await getRequiredSignatures(contract, blockNumber, snapshotProvider, web3, api)
const result = await getRequiredSignatures(contract, receipt.blockNumber, snapshotProvider, web3, api)
setResult(result)
}
const callValidatorList = async (
contract: Maybe<Contract>,
blockNumber: number | 'latest',
receipt: TransactionReceipt,
setResult: Function,
snapshotProvider: SnapshotProvider,
web3: Web3,
api: string
) => {
if (!contract) return
const result = await getValidatorList(contract, blockNumber, snapshotProvider, web3, api)
const result = await getValidatorList(contract, receipt.blockNumber, snapshotProvider, web3, api)
setResult(result)
}
const web3 = isHome ? home.web3 : foreign.web3
const api = isHome ? HOME_EXPLORER_API : FOREIGN_EXPLORER_API
const bridgeContract = isHome ? home.bridgeContract : foreign.bridgeContract
const snapshotProvider = isHome ? homeSnapshotProvider : foreignSnapshotProvider
const web3 = fromHome ? home.web3 : foreign.web3
const api = fromHome ? HOME_EXPLORER_API : FOREIGN_EXPLORER_API
const bridgeContract = fromHome ? home.bridgeContract : foreign.bridgeContract
const snapshotProvider = fromHome ? homeSnapshotProvider : foreignSnapshotProvider
useEffect(
() => {
@ -62,11 +68,11 @@ export const useValidatorContract = (isHome: boolean, blockNumber: number | 'lat
useEffect(
() => {
if (!web3 || !blockNumber) return
callRequiredSignatures(validatorContract, blockNumber, setRequiredSignatures, snapshotProvider, web3, api)
callValidatorList(validatorContract, blockNumber, setValidatorList, snapshotProvider, web3, api)
if (!web3 || !receipt) return
callRequiredSignatures(validatorContract, receipt, setRequiredSignatures, snapshotProvider, web3, api)
callValidatorList(validatorContract, receipt, setValidatorList, snapshotProvider, web3, api)
},
[validatorContract, blockNumber, web3, snapshotProvider, api]
[validatorContract, receipt, web3, snapshotProvider, api]
)
return {

@ -1,4 +1,4 @@
import React, { createContext, ReactNode } from 'react'
import React, { createContext, ReactNode, useState } from 'react'
import { useNetwork } from '../hooks/useNetwork'
import {
HOME_RPC_URL,
@ -25,6 +25,8 @@ export interface StateContext {
home: BaseNetworkParams
foreign: BaseNetworkParams
loading: boolean
error: string
setError: Function
}
const initialState = {
@ -42,7 +44,9 @@ const initialState = {
bridgeAddress: FOREIGN_BRIDGE_ADDRESS,
bridgeContract: null
},
loading: true
loading: true,
error: '',
setError: () => {}
}
const StateContext = createContext<StateContext>(initialState)
@ -54,6 +58,7 @@ export const StateProvider = ({ children }: { children: ReactNode }) => {
homeWeb3: homeNetwork.web3,
foreignWeb3: foreignNetwork.web3
})
const [error, setError] = useState('')
const value = {
home: {
@ -68,7 +73,9 @@ export const StateProvider = ({ children }: { children: ReactNode }) => {
bridgeContract: foreignBridge,
...foreignNetwork
},
loading: homeNetwork.loading || foreignNetwork.loading
loading: homeNetwork.loading || foreignNetwork.loading,
error,
setError
}
return <StateContext.Provider value={value}>{children}</StateContext.Provider>

@ -28,7 +28,5 @@ export const GlobalStyle = createGlobalStyle<{ theme: ThemeType }>`
--not-required-bg-color: ${props => props.theme.notRequired.backgroundColor};
--failed-color: ${props => props.theme.failed.textColor};
--failed-bg-color: ${props => props.theme.failed.backgroundColor};
--warning-color: ${props => props.theme.warning.textColor};
--warning-bg-color: ${props => props.theme.warning.backgroundColor};
}
`

@ -17,10 +17,6 @@ const theme = {
failed: {
textColor: '#de4437',
backgroundColor: 'rgba(222,68,55,.1)'
},
warning: {
textColor: '#ffa758',
backgroundColor: 'rgba(222,68,55,.1)'
}
}
export default theme

@ -14,40 +14,37 @@ const messageData = '0x123456'
const OTHER_HASH = 'aabbccdd'
const bridgeAddress = '0xFe446bEF1DbF7AFE24E81e05BC8B271C1BA9a560'
const otherAddress = '0xD4075FB57fCf038bFc702c915Ef9592534bED5c1'
const validator1 = '0x45b96809336A8b714BFbdAB3E4B5e0fe5d839908'
const validator2 = '0xAe8bFfc8BBc6AAa9E21ED1E4e4957fe798BEA25f'
const validator3 = '0x285A6eB779be4db94dA65e2F3518B1c5F0f71244'
describe('getFailedTransactions', () => {
test('should only return failed transactions', async () => {
const to = otherAddress
const transactions = [
{ isError: '0', to, from: validator1 },
{ isError: '1', to, from: validator1 },
{ isError: '0', to, from: validator2 },
{ isError: '1', to, from: validator2 },
{ isError: '1', to, from: validator3 }
{ isError: '0', to },
{ isError: '1', to },
{ isError: '0', to },
{ isError: '1', to },
{ isError: '1', to }
]
const fetchAccountTransactions = jest.fn().mockImplementation(() => transactions)
const result = await getFailedTransactions(validator1, to, 0, 1, '', fetchAccountTransactions)
expect(result.length).toEqual(1)
const result = await getFailedTransactions('', to, 0, 1, '', fetchAccountTransactions)
expect(result.length).toEqual(3)
})
})
describe('getSuccessTransactions', () => {
test('should only return success transactions', async () => {
const to = otherAddress
const transactions = [
{ isError: '0', to, from: validator1 },
{ isError: '1', to, from: validator1 },
{ isError: '0', to, from: validator2 },
{ isError: '1', to, from: validator2 },
{ isError: '1', to, from: validator3 }
{ isError: '0', to },
{ isError: '1', to },
{ isError: '0', to },
{ isError: '1', to },
{ isError: '1', to }
]
const fetchAccountTransactions = jest.fn().mockImplementation(() => transactions)
const result = await getSuccessTransactions(validator1, to, 0, 1, '', fetchAccountTransactions)
expect(result.length).toEqual(1)
const result = await getSuccessTransactions('', to, 0, 1, '', fetchAccountTransactions)
expect(result.length).toEqual(2)
})
})
describe('filterValidatorSignatureTransaction', () => {

@ -5,7 +5,7 @@ import Web3 from 'web3'
import { Contract } from 'web3-eth-contract'
import { APIPendingTransaction, APITransaction } from '../explorer'
import { VALIDATOR_CONFIRMATION_STATUS } from '../../config/constants'
import { ConfirmationParam } from '../../hooks/useMessageConfirmations'
import { BasicConfirmationParam } from '../../hooks/useMessageConfirmations'
jest.mock('../validatorConfirmationHelpers')
@ -18,9 +18,6 @@ const messageData = '0x111111111'
const web3 = {
utils: {
soliditySha3Raw: (data: string) => `0xaaaa${data.replace('0x', '')}`
},
eth: {
accounts: new Web3().eth.accounts
}
} as Web3
const validator1 = '0x45b96809336A8b714BFbdAB3E4B5e0fe5d839908'
@ -28,7 +25,7 @@ const validator2 = '0xAe8bFfc8BBc6AAa9E21ED1E4e4957fe798BEA25f'
const validator3 = '0x285A6eB779be4db94dA65e2F3518B1c5F0f71244'
const validatorList = [validator1, validator2, validator3]
const signature =
'0x6f5b74905669999f1abdb52e1e215506907e1849aac7b31854da458b33a5954e15b165007c3703cfd16e61ca46a96a56727ed11fa47be359d3834515accd016e1b'
'0x519d704bceed17423daa79c20531cc34fc27a4be6e53fc5069a8023019188ca4519d704bceed17423daa79c20531cc34fc27a4be6e53fc5069a8023019188ca4'
const bridgeContract = {
methods: {
signature: () => ({
@ -64,19 +61,19 @@ describe('getConfirmationsForTx', () => {
validator,
status: validator !== validator3 ? VALIDATOR_CONFIRMATION_STATUS.SUCCESS : VALIDATOR_CONFIRMATION_STATUS.UNDEFINED
}))
getSuccessExecutionTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getSuccessExecutionTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS,
txHash: '',
timestamp: 0
}))
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: '',
timestamp: 0
}))
getValidatorPendingTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getValidatorPendingTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: '',
@ -113,8 +110,9 @@ describe('getConfirmationsForTx', () => {
expect(setResult).toBeCalledTimes(2)
expect(getValidatorConfirmation).toBeCalledTimes(1)
expect(getSuccessExecutionTransaction).toBeCalledTimes(1)
expect(setSignatureCollected).toBeCalledTimes(1)
expect(setSignatureCollected).toBeCalledTimes(2)
expect(setSignatureCollected.mock.calls[0][0]).toEqual(true)
expect(setSignatureCollected.mock.calls[1][0]).toEqual([signature, signature])
expect(getValidatorFailedTransaction).toBeCalledTimes(1)
expect(setFailedConfirmations).toBeCalledTimes(1)
@ -137,7 +135,7 @@ describe('getConfirmationsForTx', () => {
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED, txHash: '', timestamp: 0 }
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED }
])
)
})
@ -146,19 +144,19 @@ describe('getConfirmationsForTx', () => {
validator,
status: validator === validator3 ? VALIDATOR_CONFIRMATION_STATUS.SUCCESS : VALIDATOR_CONFIRMATION_STATUS.UNDEFINED
}))
getSuccessExecutionTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getSuccessExecutionTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS,
txHash: '',
timestamp: 0
}))
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: '',
timestamp: 0
}))
getValidatorPendingTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getValidatorPendingTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: '',
@ -210,19 +208,19 @@ describe('getConfirmationsForTx', () => {
validator,
status: validator !== validator3 ? VALIDATOR_CONFIRMATION_STATUS.SUCCESS : VALIDATOR_CONFIRMATION_STATUS.UNDEFINED
}))
getSuccessExecutionTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getSuccessExecutionTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS,
txHash: validatorData.validator !== validator3 ? '0x123' : '',
timestamp: validatorData.validator !== validator3 ? 123 : 0
}))
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: '',
timestamp: 0
}))
getValidatorPendingTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getValidatorPendingTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: '',
@ -259,8 +257,9 @@ describe('getConfirmationsForTx', () => {
expect(setResult).toBeCalledTimes(3)
expect(getValidatorConfirmation).toBeCalledTimes(1)
expect(getSuccessExecutionTransaction).toBeCalledTimes(1)
expect(setSignatureCollected).toBeCalledTimes(1)
expect(setSignatureCollected).toBeCalledTimes(2)
expect(setSignatureCollected.mock.calls[0][0]).toEqual(true)
expect(setSignatureCollected.mock.calls[1][0]).toEqual([signature, signature])
expect(getValidatorFailedTransaction).toBeCalledTimes(1)
expect(setFailedConfirmations).toBeCalledTimes(1)
@ -282,16 +281,16 @@ describe('getConfirmationsForTx', () => {
)
expect(res2).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED }
])
)
expect(res3).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED, txHash: '', timestamp: 0 }
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED }
])
)
})
@ -305,22 +304,22 @@ describe('getConfirmationsForTx', () => {
? VALIDATOR_CONFIRMATION_STATUS.SUCCESS
: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED
}))
getSuccessExecutionTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getSuccessExecutionTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS,
txHash: validatorData.validator !== validator3 && validatorData.validator !== validator4 ? '0x123' : '',
timestamp: validatorData.validator !== validator3 && validatorData.validator !== validator4 ? 123 : 0
}))
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status:
validatorData.validator === validator3
? VALIDATOR_CONFIRMATION_STATUS.FAILED_VALID
? VALIDATOR_CONFIRMATION_STATUS.FAILED
: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: validatorData.validator === validator3 ? '0x123' : '',
timestamp: validatorData.validator === validator3 ? 123 : 0
}))
getValidatorPendingTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getValidatorPendingTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: '',
@ -357,8 +356,9 @@ describe('getConfirmationsForTx', () => {
expect(setResult).toBeCalledTimes(4)
expect(getValidatorConfirmation).toBeCalledTimes(1)
expect(getSuccessExecutionTransaction).toBeCalledTimes(1)
expect(setSignatureCollected).toBeCalledTimes(1)
expect(setSignatureCollected).toBeCalledTimes(2)
expect(setSignatureCollected.mock.calls[0][0]).toEqual(true)
expect(setSignatureCollected.mock.calls[1][0]).toEqual([signature, signature])
expect(getValidatorFailedTransaction).toBeCalledTimes(1)
expect(setFailedConfirmations).toBeCalledTimes(1)
@ -382,26 +382,26 @@ describe('getConfirmationsForTx', () => {
)
expect(res2).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED },
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 },
{ validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
])
)
expect(res3).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.FAILED_VALID, txHash: '0x123', timestamp: 123 },
{ validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 },
{ validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED }
])
)
expect(res4).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.FAILED_VALID, txHash: '0x123', timestamp: 123 },
{ validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED, txHash: '', timestamp: 0 }
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 },
{ validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED }
])
)
})
@ -414,22 +414,22 @@ describe('getConfirmationsForTx', () => {
validator,
status: validator === validator1 ? VALIDATOR_CONFIRMATION_STATUS.SUCCESS : VALIDATOR_CONFIRMATION_STATUS.UNDEFINED
}))
getSuccessExecutionTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getSuccessExecutionTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS,
txHash: validatorData.validator === validator1 ? '0x123' : '',
timestamp: validatorData.validator === validator1 ? 123 : 0
}))
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status:
validatorData.validator === validator2
? VALIDATOR_CONFIRMATION_STATUS.FAILED_VALID
? VALIDATOR_CONFIRMATION_STATUS.FAILED
: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: validatorData.validator === validator2 ? '0x123' : '',
timestamp: validatorData.validator === validator2 ? 123 : 0
}))
getValidatorPendingTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getValidatorPendingTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status:
validatorData.validator === validator3
@ -492,22 +492,22 @@ describe('getConfirmationsForTx', () => {
)
expect(res2).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.PENDING, txHash: '0x123', timestamp: 123 }
])
)
expect(res3).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED },
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.PENDING, txHash: '0x123', timestamp: 123 }
])
)
expect(res4).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED_VALID, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.PENDING, txHash: '0x123', timestamp: 123 }
])
)
@ -521,13 +521,13 @@ describe('getConfirmationsForTx', () => {
validator,
status: validator === validator1 ? VALIDATOR_CONFIRMATION_STATUS.SUCCESS : VALIDATOR_CONFIRMATION_STATUS.UNDEFINED
}))
getSuccessExecutionTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getSuccessExecutionTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS,
txHash: validatorData.validator === validator1 ? '0x123' : '',
timestamp: validatorData.validator === validator1 ? 123 : 0
}))
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status:
validatorData.validator !== validator1
@ -536,7 +536,7 @@ describe('getConfirmationsForTx', () => {
txHash: validatorData.validator !== validator1 ? '0x123' : '',
timestamp: validatorData.validator !== validator1 ? 123 : 0
}))
getValidatorPendingTransaction.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
getValidatorPendingTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: '',
@ -596,9 +596,9 @@ describe('getConfirmationsForTx', () => {
)
expect(res2).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 }
])
)
expect(res3).toEqual(
@ -610,13 +610,9 @@ describe('getConfirmationsForTx', () => {
)
})
test('should remove pending state after transaction mined', async () => {
const validator4 = '0x9d2dC11C342F4eF3C5491A048D0f0eBCd2D8f7C3'
const validatorList = [validator1, validator2, validator3, validator4]
// Validator1 success (ts=100)
// Validator2 failed (ts=200)
// Validator3 Pending (ts=300)
// Validator4 Excess confirmation (Failed) (ts=400)
// Validator1 success
// Validator2 failed
// Validator3 Pending
getValidatorConfirmation
.mockImplementationOnce(() => async (validator: string) => ({
@ -627,57 +623,41 @@ describe('getConfirmationsForTx', () => {
.mockImplementation(() => async (validator: string) => ({
validator,
status:
validator === validator1 || validator === validator3
? VALIDATOR_CONFIRMATION_STATUS.SUCCESS
: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED
validator !== validator2 ? VALIDATOR_CONFIRMATION_STATUS.SUCCESS : VALIDATOR_CONFIRMATION_STATUS.UNDEFINED
}))
getSuccessExecutionTransaction
.mockImplementationOnce(() => async (validatorData: ConfirmationParam) => ({
.mockImplementationOnce(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS,
txHash: validatorData.validator === validator1 ? '0x100' : '',
timestamp: validatorData.validator === validator1 ? 100 : 0
txHash: validatorData.validator === validator1 ? '0x123' : '',
timestamp: validatorData.validator === validator1 ? 123 : 0
}))
.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS,
txHash:
validatorData.validator === validator1 ? '0x100' : validatorData.validator === validator3 ? '0x300' : '',
timestamp: validatorData.validator === validator1 ? 100 : validatorData.validator === validator3 ? 300 : ''
txHash: validatorData.validator !== validator2 ? '0x123' : '',
timestamp: validatorData.validator !== validator2 ? 123 : 0
}))
getValidatorFailedTransaction
.mockImplementationOnce(() => async (validatorData: ConfirmationParam) => ({
getValidatorFailedTransaction.mockImplementation(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status:
validatorData.validator === validator2
? VALIDATOR_CONFIRMATION_STATUS.FAILED
: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: validatorData.validator === validator2 ? '0x200' : '',
timestamp: validatorData.validator === validator2 ? 200 : 0
}))
.mockImplementation(() => async (validatorData: ConfirmationParam) => ({
validator: validatorData.validator,
status:
validatorData.validator === validator2 || validatorData.validator === validator4
? validatorData.validator === validator2
? VALIDATOR_CONFIRMATION_STATUS.FAILED
: VALIDATOR_CONFIRMATION_STATUS.FAILED_VALID
: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash:
validatorData.validator === validator2 ? '0x200' : validatorData.validator === validator4 ? '0x400' : '',
timestamp: validatorData.validator === validator2 ? 200 : validatorData.validator === validator4 ? 400 : ''
txHash: validatorData.validator === validator2 ? '0x123' : '',
timestamp: validatorData.validator === validator2 ? 123 : 0
}))
getValidatorPendingTransaction
.mockImplementationOnce(() => async (validatorData: ConfirmationParam) => ({
.mockImplementationOnce(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status:
validatorData.validator === validator3
? VALIDATOR_CONFIRMATION_STATUS.PENDING
: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: validatorData.validator === validator3 ? '0x300' : '',
timestamp: validatorData.validator === validator3 ? 300 : 0
txHash: validatorData.validator === validator3 ? '0x123' : '',
timestamp: validatorData.validator === validator3 ? 123 : 0
}))
.mockImplementationOnce(() => async (validatorData: ConfirmationParam) => ({
.mockImplementationOnce(() => async (validatorData: BasicConfirmationParam) => ({
validator: validatorData.validator,
status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
txHash: '',
@ -718,7 +698,7 @@ describe('getConfirmationsForTx', () => {
expect(getValidatorFailedTransaction).toBeCalledTimes(1)
expect(setFailedConfirmations).toBeCalledTimes(1)
expect(setFailedConfirmations.mock.calls[0][0]).toEqual(true)
expect(setFailedConfirmations.mock.calls[0][0]).toEqual(false)
expect(getValidatorPendingTransaction).toBeCalledTimes(1)
expect(setPendingConfirmations).toBeCalledTimes(1)
@ -732,32 +712,28 @@ describe('getConfirmationsForTx', () => {
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED },
{ validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
])
)
expect(res2).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x100', timestamp: 100 },
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED },
{ validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.PENDING, txHash: '0x123', timestamp: 123 }
])
)
expect(res3).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x100', timestamp: 100 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.PENDING, txHash: '0x300', timestamp: 300 },
{ validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.PENDING, txHash: '0x123', timestamp: 123 }
])
)
expect(res4).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x100', timestamp: 100 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x200', timestamp: 200 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.PENDING, txHash: '0x300', timestamp: 300 },
{ validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.PENDING, txHash: '0x123', timestamp: 123 }
])
)
@ -785,13 +761,14 @@ describe('getConfirmationsForTx', () => {
expect(setResult).toBeCalledTimes(7)
expect(getValidatorConfirmation).toBeCalledTimes(2)
expect(getSuccessExecutionTransaction).toBeCalledTimes(2)
expect(setSignatureCollected).toBeCalledTimes(2)
expect(setSignatureCollected).toBeCalledTimes(3)
expect(setSignatureCollected.mock.calls[0][0]).toEqual(false)
expect(setSignatureCollected.mock.calls[1][0]).toEqual(true)
expect(setSignatureCollected.mock.calls[2][0]).toEqual([signature, signature])
expect(getValidatorFailedTransaction).toBeCalledTimes(2)
expect(setFailedConfirmations).toBeCalledTimes(2)
expect(setFailedConfirmations.mock.calls[0][0]).toEqual(true)
expect(setFailedConfirmations.mock.calls[0][0]).toEqual(false)
expect(setFailedConfirmations.mock.calls[1][0]).toEqual(false)
expect(getValidatorPendingTransaction).toBeCalledTimes(1)
@ -804,26 +781,23 @@ describe('getConfirmationsForTx', () => {
const res7 = setResult.mock.calls[6][0](res6)
expect(res5).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x100', timestamp: 100 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x200', timestamp: 200 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x300', timestamp: 300 },
{ validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS }
])
)
expect(res6).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x100', timestamp: 100 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x200', timestamp: 200 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x300', timestamp: 300 },
{ validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED }
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS }
])
)
expect(res7).toEqual(
expect.arrayContaining([
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x100', timestamp: 100 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x200', timestamp: 200 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x300', timestamp: 300 },
{ validator: validator4, status: VALIDATOR_CONFIRMATION_STATUS.FAILED_VALID, txHash: '0x400', timestamp: 400 }
{ validator: validator1, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 },
{ validator: validator2, status: VALIDATOR_CONFIRMATION_STATUS.FAILED, txHash: '0x123', timestamp: 123 },
{ validator: validator3, status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS, txHash: '0x123', timestamp: 123 }
])
)
})

@ -84,11 +84,10 @@ describe('getFinalizationEvent', () => {
expect(setResult).toBeCalledTimes(1)
expect(setResult.mock.calls[0][0]).toEqual({
validator: validator1,
status: VALIDATOR_CONFIRMATION_STATUS.EXECUTION_SUCCESS,
status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS,
txHash,
timestamp,
executionResult: true,
blockNumber: 5523145
executionResult: true
})
expect(getFailedExecution).toBeCalledTimes(0)
@ -238,8 +237,7 @@ describe('getFinalizationEvent', () => {
status: VALIDATOR_CONFIRMATION_STATUS.PENDING,
txHash,
timestamp: expect.any(Number),
executionResult: false,
blockNumber: 0
executionResult: false
})
expect(getFailedExecution).toBeCalledTimes(0)
@ -296,8 +294,7 @@ describe('getFinalizationEvent', () => {
status: VALIDATOR_CONFIRMATION_STATUS.FAILED,
txHash,
timestamp: expect.any(Number),
executionResult: false,
blockNumber: expect.any(Number)
executionResult: false
})
expect(getFailedExecution).toBeCalledTimes(1)

@ -22,16 +22,6 @@ export const getRequiredBlockConfirmations = async (
web3: Web3 | null = null,
api: string = ''
) => {
let blockConfirmations
try {
blockConfirmations = await contract.methods.requiredBlockConfirmations().call()
} catch {}
if (blockConfirmations) {
return parseInt(blockConfirmations)
}
const eventsFromSnapshot = snapshotProvider.requiredBlockConfirmationEvents(blockNumber)
const snapshotBlockNumber = snapshotProvider.snapshotBlockNumber()
@ -45,10 +35,16 @@ export const getRequiredBlockConfirmations = async (
const events = [...eventsFromSnapshot, ...contractEvents]
let blockConfirmations
if (events.length > 0) {
// Use the value from last event before the transaction
const event = events[events.length - 1]
blockConfirmations = event.returnValues.requiredBlockConfirmations
} else {
// This is a special case where RequiredBlockConfirmationChanged was not emitted during initialization in early versions of AMB
// of Sokol - Kovan. In this case the current value is used.
blockConfirmations = await contract.methods.requiredBlockConfirmations().call()
}
return parseInt(blockConfirmations)
}
@ -56,25 +52,11 @@ export const getValidatorAddress = (contract: Contract) => contract.methods.vali
export const getRequiredSignatures = async (
contract: Contract,
blockNumber: number | 'latest',
blockNumber: number,
snapshotProvider: SnapshotProvider,
web3: Web3 | null = null,
api: string = ''
) => {
let requiredSignatures
try {
requiredSignatures = await contract.methods.requiredSignatures().call()
} catch {}
if (requiredSignatures) {
return parseInt(requiredSignatures)
}
if (blockNumber === 'latest') {
return contract.methods.requiredSignatures().call()
}
const eventsFromSnapshot = snapshotProvider.requiredSignaturesEvents(blockNumber)
const snapshotBlockNumber = snapshotProvider.snapshotBlockNumber()
@ -90,25 +72,17 @@ export const getRequiredSignatures = async (
// Use the value form last event before the transaction
const event = events[events.length - 1]
;({ requiredSignatures } = event.returnValues)
const { requiredSignatures } = event.returnValues
return parseInt(requiredSignatures)
}
export const getValidatorList = async (
contract: Contract,
blockNumber: number | 'latest',
blockNumber: number,
snapshotProvider: SnapshotProvider,
web3: Web3 | null = null,
api: string = ''
) => {
try {
const currentList = await contract.methods.validatorList().call()
if (currentList) {
return currentList
}
} catch {}
const addedEventsFromSnapshot = snapshotProvider.validatorAddedEvents(blockNumber)
const removedEventsFromSnapshot = snapshotProvider.validatorRemovedEvents(blockNumber)
const snapshotBlockNumber = snapshotProvider.snapshotBlockNumber()

@ -12,7 +12,6 @@ import Web3 from 'web3'
import { Contract } from 'web3-eth-contract'
export interface APITransaction {
from: string
timeStamp: string
isError: string
input: string
@ -55,7 +54,7 @@ export const fetchAccountTransactions = async ({ account, startBlock, endBlock,
url.searchParams.append('module', 'account')
url.searchParams.append('action', 'txlist')
url.searchParams.append('address', account)
url.searchParams.append('filterby', 'to')
url.searchParams.append('filterby', 'from')
url.searchParams.append('startblock', startBlock.toString())
url.searchParams.append('endblock', endBlock.toString())
@ -65,7 +64,7 @@ export const fetchAccountTransactions = async ({ account, startBlock, endBlock,
return []
}
return result.result || []
return result.result
}
export const fetchPendingTransactions = async ({
@ -181,12 +180,10 @@ export const getLogs = async (
if (topics[i] !== null) {
url.searchParams.append(`topic${i}`, topics[i] as string)
for (let j = 0; j < i; j++) {
if (topics[j] !== null) {
url.searchParams.append(`topic${j}_${i}_opr`, 'and')
}
}
}
}
const logs = await fetch(url.toString()).then(res => res.json())
@ -197,7 +194,7 @@ export const getLogs = async (
}))
}
const filterSender = (from: string) => (tx: APITransaction) => tx.from.toLowerCase() === from.toLowerCase()
const filterReceiver = (to: string) => (tx: APITransaction) => tx.to.toLowerCase() === to.toLowerCase()
export const getFailedTransactions = async (
account: string,
@ -207,9 +204,9 @@ export const getFailedTransactions = async (
api: string,
getAccountTransactionsMethod = getAccountTransactions
): Promise<APITransaction[]> => {
const transactions = await getAccountTransactionsMethod({ account: to, startBlock, endBlock, api })
const transactions = await getAccountTransactionsMethod({ account, startBlock, endBlock, api })
return transactions.filter(t => t.isError !== '0').filter(filterSender(account))
return transactions.filter(t => t.isError !== '0').filter(filterReceiver(to))
}
export const getSuccessTransactions = async (
@ -220,9 +217,9 @@ export const getSuccessTransactions = async (
api: string,
getAccountTransactionsMethod = getAccountTransactions
): Promise<APITransaction[]> => {
const transactions = await getAccountTransactionsMethod({ account: to, startBlock, endBlock, api })
const transactions = await getAccountTransactionsMethod({ account, startBlock, endBlock, api })
return transactions.filter(t => t.isError === '0').filter(filterSender(account))
return transactions.filter(t => t.isError === '0').filter(filterReceiver(to))
}
export const filterValidatorSignatureTransaction = (

@ -2,37 +2,26 @@ import Web3 from 'web3'
import { Contract } from 'web3-eth-contract'
import { HOME_RPC_POLLING_INTERVAL, VALIDATOR_CONFIRMATION_STATUS } from '../config/constants'
import { GetTransactionParams, APITransaction, APIPendingTransaction, GetPendingTransactionParams } from './explorer'
import { getAffirmationsSigned, getMessagesSigned } from './contract'
import {
getValidatorConfirmation,
getValidatorFailedTransaction,
getValidatorPendingTransaction,
getSuccessExecutionTransaction
} from './validatorConfirmationHelpers'
import { ConfirmationParam } from '../hooks/useMessageConfirmations'
import { signatureToVRS } from './signatures'
import { BasicConfirmationParam, ConfirmationParam } from '../hooks/useMessageConfirmations'
const mergeConfirmations = (oldConfirmations: ConfirmationParam[], newConfirmations: ConfirmationParam[]) => {
const mergeConfirmations = (oldConfirmations: BasicConfirmationParam[], newConfirmations: BasicConfirmationParam[]) => {
const confirmations = [...oldConfirmations]
newConfirmations.forEach(validatorData => {
const index = confirmations.findIndex(e => e.validator === validatorData.validator)
if (index === -1) {
confirmations.push(validatorData)
return
}
const currentStatus = confirmations[index].status
const newStatus = validatorData.status
if (
validatorData.txHash ||
!!validatorData.signature ||
(validatorData as ConfirmationParam).txHash ||
(newStatus !== currentStatus && newStatus !== VALIDATOR_CONFIRMATION_STATUS.UNDEFINED)
) {
confirmations[index] = {
status: validatorData.status,
validator: validatorData.validator,
timestamp: confirmations[index].timestamp || validatorData.timestamp,
txHash: confirmations[index].txHash || validatorData.txHash,
signature: confirmations[index].signature || validatorData.signature
}
confirmations[index] = validatorData
}
})
return confirmations
@ -56,17 +45,19 @@ export const getConfirmationsForTx = async (
setPendingConfirmations: Function,
getSuccessTransactions: (args: GetTransactionParams) => Promise<APITransaction[]>
) => {
const confirmationContractMethod = fromHome ? getMessagesSigned : getAffirmationsSigned
const hashMsg = web3.utils.soliditySha3Raw(messageData)
let validatorConfirmations = await Promise.all(
validatorList.map(getValidatorConfirmation(web3, hashMsg, bridgeContract, fromHome))
validatorList.map(getValidatorConfirmation(web3, hashMsg, bridgeContract, confirmationContractMethod))
)
const updateConfirmations = (confirmations: ConfirmationParam[]) => {
const updateConfirmations = (confirmations: BasicConfirmationParam[]) => {
if (confirmations.length === 0) {
return
}
validatorConfirmations = mergeConfirmations(validatorConfirmations, confirmations)
setResult((currentConfirmations: ConfirmationParam[]) => {
setResult((currentConfirmations: BasicConfirmationParam[]) => {
if (currentConfirmations && currentConfirmations.length) {
return mergeConfirmations(currentConfirmations, confirmations)
}
@ -76,37 +67,11 @@ export const getConfirmationsForTx = async (
const successConfirmations = validatorConfirmations.filter(c => c.status === VALIDATOR_CONFIRMATION_STATUS.SUCCESS)
const notSuccessConfirmations = validatorConfirmations.filter(c => c.status !== VALIDATOR_CONFIRMATION_STATUS.SUCCESS)
const hasEnoughSignatures = successConfirmations.length >= requiredSignatures
const hasEnoughSignatures = successConfirmations.length === requiredSignatures
updateConfirmations(validatorConfirmations)
setSignatureCollected(hasEnoughSignatures)
if (hasEnoughSignatures) {
setPendingConfirmations(false)
if (fromHome) {
// fetch collected signatures for possible manual processing
const signatures = await Promise.all(
Array.from(Array(requiredSignatures).keys()).map(i => bridgeContract.methods.signature(hashMsg, i).call())
)
const confirmations = signatures.flatMap(sig => {
const { v, r, s } = signatureToVRS(sig)
const address = web3.eth.accounts.recover(messageData, `0x${v}`, `0x${r}`, `0x${s}`)
return successConfirmations.filter(c => c.validator === address).map(c => ({ ...c, signature: sig }))
})
updateConfirmations(confirmations)
}
}
// get transactions from success signatures
const successConfirmationWithData = await Promise.all(
successConfirmations.map(
getSuccessExecutionTransaction(web3, bridgeContract, fromHome, messageData, startBlock, getSuccessTransactions)
)
)
const successConfirmationWithTxFound = successConfirmationWithData.filter(v => v.txHash !== '')
updateConfirmations(successConfirmationWithTxFound)
// If signatures not collected, look for pending transactions
if (!hasEnoughSignatures) {
// Check if confirmation is pending
@ -119,6 +84,8 @@ export const getConfirmationsForTx = async (
)
updateConfirmations(validatorPendingConfirmations)
setPendingConfirmations(validatorPendingConfirmations.length > 0)
} else {
setPendingConfirmations(false)
}
const undefinedConfirmations = validatorConfirmations.filter(
@ -128,27 +95,13 @@ export const getConfirmationsForTx = async (
// Check if confirmation failed
const validatorFailedConfirmationsChecks = await Promise.all(
undefinedConfirmations.map(
getValidatorFailedTransaction(web3, bridgeContract, messageData, startBlock, getFailedTransactions)
getValidatorFailedTransaction(bridgeContract, messageData, startBlock, getFailedTransactions)
)
)
let validatorFailedConfirmations = validatorFailedConfirmationsChecks.filter(
c => c.status === VALIDATOR_CONFIRMATION_STATUS.FAILED || c.status === VALIDATOR_CONFIRMATION_STATUS.FAILED_VALID
)
if (hasEnoughSignatures && !fromHome) {
const lastTS = Math.max(...successConfirmationWithTxFound.map(c => c.timestamp || 0))
validatorFailedConfirmations = validatorFailedConfirmations.map(
c =>
c.timestamp < lastTS
? c
: {
...c,
status: VALIDATOR_CONFIRMATION_STATUS.FAILED_VALID
}
)
}
setFailedConfirmations(
!hasEnoughSignatures && validatorFailedConfirmations.some(c => c.status === VALIDATOR_CONFIRMATION_STATUS.FAILED)
const validatorFailedConfirmations = validatorFailedConfirmationsChecks.filter(
c => c.status === VALIDATOR_CONFIRMATION_STATUS.FAILED
)
setFailedConfirmations(validatorFailedConfirmations.length > validatorList.length - requiredSignatures)
updateConfirmations(validatorFailedConfirmations)
const missingConfirmations = validatorConfirmations.filter(
@ -159,12 +112,29 @@ export const getConfirmationsForTx = async (
// If signatures collected, it should set other signatures not found as not required
const notRequiredConfirmations = missingConfirmations.map(c => ({
validator: c.validator,
status: VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED,
timestamp: 0,
txHash: ''
status: VALIDATOR_CONFIRMATION_STATUS.NOT_REQUIRED
}))
updateConfirmations(notRequiredConfirmations)
if (fromHome) {
// fetch collected signatures for possible manual processing
setSignatureCollected(
await Promise.all(
Array.from(Array(requiredSignatures).keys()).map(i => bridgeContract.methods.signature(hashMsg, i).call())
)
)
}
}
// get transactions from success signatures
const successConfirmationWithData = await Promise.all(
successConfirmations.map(
getSuccessExecutionTransaction(web3, bridgeContract, fromHome, messageData, startBlock, getSuccessTransactions)
)
)
const successConfirmationWithTxFound = successConfirmationWithData.filter(v => v.txHash !== '')
updateConfirmations(successConfirmationWithTxFound)
// retry if not all signatures are collected and some confirmations are still missing
// or some success transactions were not fetched successfully

@ -59,12 +59,11 @@ export const getSuccessExecutionData = async (
const validatorAddress = web3.utils.toChecksumAddress(txReceipt.from)
return {
status: VALIDATOR_CONFIRMATION_STATUS.EXECUTION_SUCCESS,
status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS,
validator: validatorAddress,
txHash: event.transactionHash,
timestamp: blockTimestamp,
executionResult: event.returnValues.status,
blockNumber: event.blockNumber
executionResult: event.returnValues.status
}
}
return null
@ -116,8 +115,7 @@ export const getFinalizationEvent = async (
validator: validator,
txHash: pendingTx.hash,
timestamp: nowTimestamp,
executionResult: false,
blockNumber: 0
executionResult: false
})
setPendingExecution(true)
} else {
@ -146,8 +144,7 @@ export const getFinalizationEvent = async (
validator: validator,
txHash: failedTx.hash,
timestamp,
executionResult: false,
blockNumber: parseInt(failedTx.blockNumber)
executionResult: false
})
setFailedExecution(true)
}

@ -1,45 +1,38 @@
import Web3 from 'web3'
import { Contract } from 'web3-eth-contract'
import { ConfirmationParam } from '../hooks/useMessageConfirmations'
import { BasicConfirmationParam, ConfirmationParam } from '../hooks/useMessageConfirmations'
import validatorsCache from '../services/ValidatorsCache'
import { CACHE_KEY_FAILED, CACHE_KEY_SUCCESS, VALIDATOR_CONFIRMATION_STATUS } from '../config/constants'
import { APIPendingTransaction, APITransaction, GetTransactionParams, GetPendingTransactionParams } from './explorer'
import { homeBlockNumberProvider } from '../services/BlockNumberProvider'
import { getAffirmationsSigned, getMessagesSigned } from './contract'
export const getValidatorConfirmation = (
web3: Web3,
hashMsg: string,
bridgeContract: Contract,
fromHome: boolean
) => async (validator: string): Promise<ConfirmationParam> => {
confirmationContractMethod: Function
) => async (validator: string): Promise<BasicConfirmationParam> => {
const hashSenderMsg = web3.utils.soliditySha3Raw(validator, hashMsg)
const fromCache = validatorsCache.getData(hashSenderMsg)
if (fromCache) {
return fromCache
const signatureFromCache = validatorsCache.get(hashSenderMsg)
if (signatureFromCache) {
return {
validator,
status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS
}
}
const confirmationContractMethod = fromHome ? getMessagesSigned : getAffirmationsSigned
const confirmed = await confirmationContractMethod(bridgeContract, hashSenderMsg)
const status = confirmed ? VALIDATOR_CONFIRMATION_STATUS.SUCCESS : VALIDATOR_CONFIRMATION_STATUS.UNDEFINED
// If validator confirmed signature, we cache the result to avoid doing future requests for a result that won't change
if (confirmed) {
const confirmation: ConfirmationParam = {
status: VALIDATOR_CONFIRMATION_STATUS.SUCCESS,
validator,
timestamp: 0,
txHash: ''
}
validatorsCache.setData(hashSenderMsg, confirmation)
return confirmation
validatorsCache.set(hashSenderMsg, confirmed)
}
return {
status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
validator,
timestamp: 0,
txHash: ''
status
}
}
@ -50,7 +43,7 @@ export const getSuccessExecutionTransaction = (
messageData: string,
startBlock: number,
getSuccessTransactions: (args: GetTransactionParams) => Promise<APITransaction[]>
) => async (validatorData: ConfirmationParam): Promise<ConfirmationParam> => {
) => async (validatorData: BasicConfirmationParam): Promise<ConfirmationParam> => {
const { validator } = validatorData
const validatorCacheKey = `${CACHE_KEY_SUCCESS}${validatorData.validator}-${messageData}`
const fromCache = validatorsCache.getData(validatorCacheKey)
@ -94,12 +87,11 @@ export const getSuccessExecutionTransaction = (
}
export const getValidatorFailedTransaction = (
web3: Web3,
bridgeContract: Contract,
messageData: string,
startBlock: number,
getFailedTransactions: (args: GetTransactionParams) => Promise<APITransaction[]>
) => async (validatorData: ConfirmationParam): Promise<ConfirmationParam> => {
) => async (validatorData: BasicConfirmationParam): Promise<ConfirmationParam> => {
const validatorCacheKey = `${CACHE_KEY_FAILED}${validatorData.validator}-${messageData}`
const failedFromCache = validatorsCache.getData(validatorCacheKey)
@ -114,33 +106,30 @@ export const getValidatorFailedTransaction = (
startBlock,
endBlock: homeBlockNumberProvider.get() || 0
})
const newStatus =
failedTransactions.length > 0 ? VALIDATOR_CONFIRMATION_STATUS.FAILED : VALIDATOR_CONFIRMATION_STATUS.UNDEFINED
let txHashTimestamp = 0
let txHash = ''
// If validator signature failed, we cache the result to avoid doing future requests for a result that won't change
if (failedTransactions.length > 0) {
const failedTx = failedTransactions[0]
const confirmation: ConfirmationParam = {
status: VALIDATOR_CONFIRMATION_STATUS.FAILED,
validator: validatorData.validator,
txHash: failedTx.hash,
timestamp: parseInt(failedTx.timeStamp)
}
txHashTimestamp = parseInt(failedTx.timeStamp)
txHash = failedTx.hash
if (failedTx.input && failedTx.input.length > 10) {
try {
const res = web3.eth.abi.decodeParameters(['bytes', 'bytes'], `0x${failedTx.input.slice(10)}`)
confirmation.signature = res[0]
confirmation.status = VALIDATOR_CONFIRMATION_STATUS.FAILED_VALID
console.log(`Adding manual signature from failed message from ${validatorData.validator}`)
} catch {}
}
validatorsCache.setData(validatorCacheKey, confirmation)
return confirmation
validatorsCache.setData(validatorCacheKey, {
validator: validatorData.validator,
status: newStatus,
txHash,
timestamp: txHashTimestamp
})
}
return {
status: VALIDATOR_CONFIRMATION_STATUS.UNDEFINED,
validator: validatorData.validator,
txHash: '',
timestamp: 0
status: newStatus,
txHash,
timestamp: txHashTimestamp
}
}
@ -148,7 +137,7 @@ export const getValidatorPendingTransaction = (
bridgeContract: Contract,
messageData: string,
getPendingTransactions: (args: GetPendingTransactionParams) => Promise<APIPendingTransaction[]>
) => async (validatorData: ConfirmationParam): Promise<ConfirmationParam> => {
) => async (validatorData: BasicConfirmationParam): Promise<ConfirmationParam> => {
const failedTransactions = await getPendingTransactions({
account: validatorData.validator,
to: bridgeContract.options.address,

@ -10,37 +10,6 @@ import { SnapshotProvider } from '../services/SnapshotProvider'
export interface MessageObject {
id: string
data: string
sender?: string
executor?: string
obToken?: string
obReceiver?: string
}
export interface WarnRule {
message: string
sender?: string
executor?: string
obToken?: string
obReceiver?: string
}
export const matchesRule = (rule: WarnRule, msg: MessageObject) => {
if (!msg.executor || !msg.sender) {
return false
}
if (!!rule.executor && rule.executor.toLowerCase() !== msg.executor.toLowerCase()) {
return false
}
if (!!rule.sender && rule.sender.toLowerCase() !== msg.sender.toLowerCase()) {
return false
}
if (!!rule.obToken && (!msg.obToken || rule.obToken.toLowerCase() !== msg.obToken.toLowerCase())) {
return false
}
if (!!rule.obReceiver && (!msg.obReceiver || rule.obReceiver.toLowerCase() !== msg.obReceiver.toLowerCase())) {
return false
}
return true
}
const rawGetWeb3 = (url: string) => new Web3(new Web3.providers.HttpProvider(url))
@ -57,33 +26,15 @@ export const filterEventsByAbi = (
const eventHash = web3.eth.abi.encodeEventSignature(eventAbi)
const events = txReceipt.logs.filter(e => e.address === bridgeAddress && e.topics[0] === eventHash)
if (!eventAbi || !eventAbi.inputs || !eventAbi.inputs.length) {
return []
}
const inputs = eventAbi.inputs
return events.map(e => {
const { messageId, encodedData } = web3.eth.abi.decodeLog(inputs, e.data, [e.topics[1]])
let sender, executor, obToken, obReceiver
if (encodedData.length >= 160) {
sender = `0x${encodedData.slice(66, 106)}`
executor = `0x${encodedData.slice(106, 146)}`
const dataOffset =
160 + (parseInt(encodedData.slice(154, 156), 16) + parseInt(encodedData.slice(156, 158), 16)) * 2 + 8
if (encodedData.length >= dataOffset + 64) {
obToken = `0x${encodedData.slice(dataOffset + 24, dataOffset + 64)}`
let decodedLogs: { [p: string]: string } = {
messageId: '',
encodedData: ''
}
if (encodedData.length >= dataOffset + 128) {
obReceiver = `0x${encodedData.slice(dataOffset + 88, dataOffset + 128)}`
}
}
return {
id: messageId || '',
data: encodedData || '',
sender,
executor,
obToken,
obReceiver
if (eventAbi && eventAbi.inputs && eventAbi.inputs.length) {
decodedLogs = web3.eth.abi.decodeLog(eventAbi.inputs, e.data, [e.topics[1]])
}
return { id: decodedLogs.messageId, data: decodedLogs.encodedData }
})
}

@ -1,5 +1,5 @@
const HOME_ERC_TO_NATIVE_ABI = require('../contracts/build/contracts/HomeBridgeErcToNative').abi
const FOREIGN_ERC_TO_NATIVE_ABI = require('../contracts/build/contracts/XDaiForeignBridge.json').abi
const FOREIGN_ERC_TO_NATIVE_ABI = require('../contracts/build/contracts/ForeignBridgeErcToNative').abi
const ERC20_ABI = require('../contracts/build/contracts/ERC20').abi
const BLOCK_REWARD_ABI = require('../contracts/build/contracts/BlockRewardMock').abi
const BRIDGE_VALIDATORS_ABI = require('../contracts/build/contracts/BridgeValidators').abi

@ -8,7 +8,6 @@
"test": "NODE_ENV=test mocha"
},
"dependencies": {
"@mycrypto/gas-estimation": "^1.1.0",
"gas-price-oracle": "^0.1.5",
"web3-utils": "^1.3.0",
"node-fetch": "^2.1.2"

@ -1,6 +1,5 @@
const { toWei, toBN, BN } = require('web3-utils')
const { GasPriceOracle } = require('gas-price-oracle')
const { estimateFees } = require('@mycrypto/gas-estimation')
const fetch = require('node-fetch')
const { BRIDGE_MODES } = require('./constants')
const { REWARDABLE_VALIDATORS_ABI } = require('./abis')
@ -177,20 +176,12 @@ const gasPriceWithinLimits = (gasPrice, limits) => {
const normalizeGasPrice = (oracleGasPrice, factor, limits = null) => {
let gasPrice = oracleGasPrice * factor
gasPrice = gasPriceWithinLimits(gasPrice, limits)
return toWei(gasPrice.toFixed(2).toString(), 'gwei')
return toBN(toWei(gasPrice.toFixed(2).toString(), 'gwei'))
}
const gasPriceFromSupplier = async (web3, url, options = {}) => {
const gasPriceFromSupplier = async (url, options = {}) => {
try {
let json
if (url === 'eip1559-gas-estimation') {
const { maxFeePerGas, maxPriorityFeePerGas } = await estimateFees(web3)
const res = { maxFeePerGas: maxFeePerGas.toString(10), maxPriorityFeePerGas: maxPriorityFeePerGas.toString(10) }
options.logger &&
options.logger.debug &&
options.logger.debug(res, 'Gas price updated using eip1559-gas-estimation')
return res
}
if (url === 'gas-price-oracle') {
json = await gasPriceOracle.fetchGasPricesOffChain()
} else if (url) {
@ -214,7 +205,7 @@ const gasPriceFromSupplier = async (web3, url, options = {}) => {
options.logger.debug &&
options.logger.debug({ oracleGasPrice, normalizedGasPrice }, 'Gas price updated using the API')
return { gasPrice: normalizedGasPrice }
return normalizedGasPrice
} catch (e) {
options.logger && options.logger.error && options.logger.error(`Gas Price API is not available. ${e.message}`)
}
@ -223,11 +214,11 @@ const gasPriceFromSupplier = async (web3, url, options = {}) => {
const gasPriceFromContract = async (bridgeContract, options = {}) => {
try {
const gasPrice = (await bridgeContract.methods.gasPrice().call()).toString()
const gasPrice = await bridgeContract.methods.gasPrice().call()
options.logger &&
options.logger.debug &&
options.logger.debug({ gasPrice }, 'Gas price updated using the contracts')
return { gasPrice }
return gasPrice
} catch (e) {
options.logger &&
options.logger.error &&

@ -1 +1 @@
Subproject commit 908a48107919d4ab127f9af07d44d47eac91547e
Subproject commit 004d466a3d593e6304e52c74e6c3e801b6a33b32

@ -1,6 +1,6 @@
/var/log/docker/*/docker.log {
rotate 5
size 100M
size 1G
compress
missingok
delaycompress
@ -8,7 +8,7 @@
}
/var/log/docker/*.log {
rotate 5
size 100M
size 1G
compress
missingok
delaycompress

@ -7,7 +7,7 @@
loop_control:
loop_var: file
- name: Set the oracle's containers local logs configuration file
- name: Set the local container logs configuration file
template:
src: 31-oracle-docker.conf.j2
dest: /etc/rsyslog.d/31-oracle-docker.conf
@ -15,22 +15,6 @@
group: root
mode: 0644
- name: Set the redis container local logs configuration file
template:
src: 32-redis-docker.conf.j2
dest: /etc/rsyslog.d/32-redis-docker.conf
owner: root
group: root
mode: 0644
- name: Set the rabbit MQ container local logs configuration file
template:
src: 33-rabbit-docker.conf.j2
dest: /etc/rsyslog.d/33-rabbit-docker.conf
owner: root
group: root
mode: 0644
- name: Set the log configuration file to send container logs to remote server
template:
src: 36-oracle-remote-logging.conf.j2

@ -11,16 +11,9 @@ ORACLE_HOME_RPC_POLLING_INTERVAL={{ ORACLE_HOME_RPC_POLLING_INTERVAL }}
## Foreign contract
COMMON_FOREIGN_RPC_URL={{ COMMON_FOREIGN_RPC_URL }}
{% if ORACLE_FOREIGN_ARCHIVE_RPC_URL | default('') != '' %}
ORACLE_FOREIGN_ARCHIVE_RPC_URL={{ ORACLE_FOREIGN_ARCHIVE_RPC_URL }}
{% endif %}
COMMON_FOREIGN_BRIDGE_ADDRESS={{ COMMON_FOREIGN_BRIDGE_ADDRESS }}
ORACLE_FOREIGN_RPC_POLLING_INTERVAL={{ ORACLE_FOREIGN_RPC_POLLING_INTERVAL }}
{% if ORACLE_TX_REDUNDANCY | default('') != '' %}
ORACLE_TX_REDUNDANCY={{ ORACLE_TX_REDUNDANCY }}
{% endif %}
## Gasprice
{% if COMMON_HOME_GAS_PRICE_SUPPLIER_URL | default('') != '' %}
COMMON_HOME_GAS_PRICE_SUPPLIER_URL={{ COMMON_HOME_GAS_PRICE_SUPPLIER_URL }}
@ -54,28 +47,8 @@ COMMON_FOREIGN_GAS_PRICE_FACTOR={{ COMMON_FOREIGN_GAS_PRICE_FACTOR }}
ORACLE_ALLOW_HTTP_FOR_RPC={{ "yes" if ORACLE_ALLOW_HTTP_FOR_RPC else "no" }}
ORACLE_QUEUE_URL={{ ORACLE_QUEUE_URL }}
ORACLE_REDIS_URL={{ ORACLE_REDIS_URL }}
{% if ORACLE_FOREIGN_TX_RESEND_INTERVAL | default('') != '' %}
ORACLE_FOREIGN_TX_RESEND_INTERVAL={{ ORACLE_FOREIGN_TX_RESEND_INTERVAL }}
{% endif %}
{% if ORACLE_HOME_TX_RESEND_INTERVAL | default('') != '' %}
ORACLE_HOME_TX_RESEND_INTERVAL={{ ORACLE_HOME_TX_RESEND_INTERVAL }}
{% endif %}
## Emergency shutdown configuration
{% if ORACLE_SHUTDOWN_SERVICE_URL | default('') != '' %}
ORACLE_SHUTDOWN_SERVICE_URL={{ ORACLE_SHUTDOWN_SERVICE_URL }}
{% endif %}
{% if ORACLE_SHUTDOWN_SERVICE_POLLING_INTERVAL | default('') != '' %}
ORACLE_SHUTDOWN_SERVICE_POLLING_INTERVAL={{ ORACLE_SHUTDOWN_SERVICE_POLLING_INTERVAL }}
{% endif %}
{% if ORACLE_SIDE_RPC_URL | default('') != '' %}
ORACLE_SIDE_RPC_URL={{ ORACLE_SIDE_RPC_URL }}
{% endif %}
{% if ORACLE_SHUTDOWN_CONTRACT_ADDRESS | default('') != '' %}
ORACLE_SHUTDOWN_CONTRACT_ADDRESS={{ ORACLE_SHUTDOWN_CONTRACT_ADDRESS }}
{% endif %}
{% if ORACLE_SHUTDOWN_CONTRACT_METHOD | default('') != '' %}
ORACLE_SHUTDOWN_CONTRACT_METHOD={{ ORACLE_SHUTDOWN_CONTRACT_METHOD }}
{% if ORACLE_TX_REDUNDANCY | default('') != '' %}
ORACLE_TX_REDUNDANCY={{ ORACLE_TX_REDUNDANCY }}
{% endif %}
{% if ORACLE_HOME_START_BLOCK | default('') != '' %}

@ -1,11 +0,0 @@
$FileCreateMode 0644
template(name="DockerLogFileName_Redis" type="list") {
constant(value="/var/log/docker/")
property(name="syslogtag" securepath="replace" regex.type="ERE" regex.submatch="1" regex.expression="oracle_(.*redis.*)\\/[a-zA-Z0-9]+\\[")
constant(value="/docker.log")
}
if $programname contains 'oracle' and $programname contains 'redis' then \
?DockerLogFileName_Redis
$FileCreateMode 0600

@ -1,11 +0,0 @@
$FileCreateMode 0644
template(name="DockerLogFileName_Rabbit" type="list") {
constant(value="/var/log/docker/")
property(name="syslogtag" securepath="replace" regex.type="ERE" regex.submatch="1" regex.expression="oracle_(.*rabbit.*)\\/[a-zA-Z0-9]+\\[")
constant(value="/docker.log")
}
if $programname contains 'oracle' and $programname contains 'rabbit' then \
?DockerLogFileName_Rabbit
$FileCreateMode 0600

@ -23,9 +23,3 @@ ORACLE_HOME_START_BLOCK=1
ORACLE_FOREIGN_START_BLOCK=1
ORACLE_HOME_TO_FOREIGN_BLOCK_LIST=/mono/oracle/access-lists/block_list.txt
ORACLE_FOREIGN_ARCHIVE_RPC_URL=http://parity2:8545
ORACLE_HOME_EVENTS_REPROCESSING=false
ORACLE_HOME_EVENTS_REPROCESSING_BATCH_SIZE=10
ORACLE_HOME_EVENTS_REPROCESSING_BLOCK_DELAY=10
ORACLE_FOREIGN_EVENTS_REPROCESSING=true
ORACLE_FOREIGN_EVENTS_REPROCESSING_BATCH_SIZE=10
ORACLE_FOREIGN_EVENTS_REPROCESSING_BLOCK_DELAY=10

@ -22,9 +22,3 @@ ORACLE_ALLOW_HTTP_FOR_RPC=yes
ORACLE_HOME_START_BLOCK=1
ORACLE_FOREIGN_START_BLOCK=1
ORACLE_HOME_TO_FOREIGN_BLOCK_LIST=/mono/oracle/access-lists/block_list.txt
ORACLE_HOME_EVENTS_REPROCESSING=true
ORACLE_HOME_EVENTS_REPROCESSING_BATCH_SIZE=10
ORACLE_HOME_EVENTS_REPROCESSING_BLOCK_DELAY=10
ORACLE_FOREIGN_EVENTS_REPROCESSING=true
ORACLE_FOREIGN_EVENTS_REPROCESSING_BATCH_SIZE=10
ORACLE_FOREIGN_EVENTS_REPROCESSING_BLOCK_DELAY=10

@ -38,7 +38,7 @@
"ercToNativeBridge": {
"home": "0x5118AC62AE912Dd5B51EEfF7338c4fcb0248Ba8c",
"foreign": "0x32198D570fffC7033641F8A9094FFDCaAEF42624",
"foreignToken": "0x6B175474E89094C44Da98b954EedeAC495271d0F",
"foreignToken": "0x7cc4b1851c35959d34e635a470f6b5c43ba3c9c9",
"monitor": "http://monitor-erc20-native:3012/bridge"
},
"amb": {

@ -32,7 +32,7 @@ FOREIGN_GAS_PRICE=10000000000
FOREIGN_REWARDABLE=false
BLOCK_REWARD_ADDRESS=0xdbeE25CbE97e4A5CC6c499875774dc7067E9426B
ERC20_TOKEN_ADDRESS=0x6B175474E89094C44Da98b954EedeAC495271d0F
ERC20_TOKEN_ADDRESS=0x7cc4b1851c35959d34e635a470f6b5c43ba3c9c9
REQUIRED_NUMBER_OF_VALIDATORS=1
VALIDATORS="0xaaB52d66283F7A1D5978bcFcB55721ACB467384b 0xdCC784657C78054aa61FbcFFd2605F32374816A4 0xDcef88209a20D52165230104B245803C3269454d"

@ -46,19 +46,29 @@ async function main(bridgeMode, eventsInfo) {
const foreignBridge = new web3Foreign.eth.Contract(FOREIGN_ERC_TO_NATIVE_ABI, COMMON_FOREIGN_BRIDGE_ADDRESS)
const erc20Address = await foreignBridge.methods.erc20token().call()
const erc20Contract = new web3Foreign.eth.Contract(ERC20_ABI, erc20Address)
let investedAmountInDai = 0
let bridgeDsrBalance = 0
let displayChaiToken = false
try {
logger.debug('calling foreignBridge.methods.isChaiTokenEnabled')
if (await foreignBridge.methods.isChaiTokenEnabled().call()) {
displayChaiToken = true
logger.debug('calling foreignBridge.methods.investedAmountInDai')
investedAmountInDai = await foreignBridge.methods.investedAmountInDai().call()
logger.debug('calling foreignBridge.methods.dsrBalance')
bridgeDsrBalance = await foreignBridge.methods.dsrBalance().call()
} else {
logger.debug('Chai token is currently disabled')
}
} catch (e) {
logger.debug('Methods for chai token are not present')
}
logger.debug('calling erc20Contract.methods.balanceOf')
const foreignErc20Balance = await erc20Contract.methods
.balanceOf(COMMON_FOREIGN_BRIDGE_ADDRESS)
.call({}, foreignDelayedBlockNumber)
let foreignErc20BalanceBN = new BN(foreignErc20Balance).plus(lateForeignConfirmationsTotalValue)
try {
logger.debug('calling foreignBridge.methods.investedAmount')
const invested = await foreignBridge.methods.investedAmount(erc20Address).call({}, foreignDelayedBlockNumber)
foreignErc20BalanceBN = foreignErc20BalanceBN.plus(invested)
} catch (_) {
logger.debug('compounding related methods are not present in the foreign bridge')
}
const homeBridge = new web3Home.eth.Contract(HOME_ERC_TO_NATIVE_ABI, COMMON_HOME_BRIDGE_ADDRESS)
logger.debug('calling homeBridge.methods.blockRewardContract')
@ -74,16 +84,30 @@ async function main(bridgeMode, eventsInfo) {
const mintedCoinsBN = new BN(mintedCoins)
const burntCoinsBN = new BN(burntCoins)
const totalSupplyBN = mintedCoinsBN.minus(burntCoinsBN)
const foreignErc20BalanceBN = new BN(foreignErc20Balance).plus(lateForeignConfirmationsTotalValue)
const investedAmountInDaiBN = new BN(investedAmountInDai)
const bridgeDsrBalanceBN = new BN(bridgeDsrBalance)
const diff = foreignErc20BalanceBN
.plus(investedAmountInDaiBN)
.minus(totalSupplyBN)
.toFixed()
const foreign = {
erc20Balance: Web3Utils.fromWei(foreignErc20Balance)
}
if (displayChaiToken) {
foreign.investedErc20Balance = Web3Utils.fromWei(investedAmountInDai)
foreign.accumulatedInterest = Web3Utils.fromWei(bridgeDsrBalanceBN.minus(investedAmountInDaiBN).toString(10))
}
const diff = foreignErc20BalanceBN.minus(totalSupplyBN).toFixed()
logger.debug('Done')
return {
home: {
totalSupply: Web3Utils.fromWei(totalSupplyBN.toFixed())
},
foreign: {
erc20Balance: Web3Utils.fromWei(foreignErc20Balance)
},
foreign,
balanceDiff: Number(Web3Utils.fromWei(diff)),
...blockRanges,
lastChecked: Math.floor(Date.now() / 1000)

@ -11,6 +11,7 @@ const {
OLD_AMB_USER_REQUEST_FOR_AFFIRMATION_ABI
} = require('../../commons')
const { normalizeEventInformation } = require('./message')
const { filterTransferBeforeES } = require('./tokenUtils')
const { writeFile, readCacheFile } = require('./file')
const { web3Home, web3Foreign, getHomeBlockNumber, getForeignBlockNumber } = require('./web3')
const { getPastEvents } = require('./web3Cache')
@ -159,32 +160,80 @@ async function main(mode) {
filter: { to: COMMON_FOREIGN_BRIDGE_ADDRESS }
},
chain: 'foreign'
}))
.map(normalizeEvent)
.filter(e => e.recipient !== ZERO_ADDRESS) // filter mint operation during SCD-to-MCD swaps
.filter(e => e.recipient.toLowerCase() !== '0x5d3a536e4d6dbd6114cc1ead35777bab948e3643') // filter cDai withdraws during compounding
})).map(normalizeEvent)
// Get transfer events for each previously used Sai token
const saiTokenAddress = '0x89d24A6b4CcB1B6fAA2625fE562bDD9a23260359'
const halfDuplexTokenContract = new web3Foreign.eth.Contract(ERC20_ABI, saiTokenAddress)
logger.debug('Half duplex token:', saiTokenAddress)
let directTransfers = transferEvents
const tokensSwappedAbiExists = FOREIGN_ABI.filter(e => e.type === 'event' && e.name === 'TokensSwapped')[0]
if (tokensSwappedAbiExists) {
logger.debug('collecting half duplex tokens participated in the bridge balance')
logger.debug("calling foreignBridge.getPastEvents('TokensSwapped')")
const tokensSwappedEvents = await getPastEvents(foreignBridge, {
event: 'TokensSwapped',
fromBlock: MONITOR_FOREIGN_START_BLOCK,
toBlock: foreignBlockNumber,
chain: 'foreign',
safeToBlock: foreignDelayedBlockNumber
})
// Get token swap events emitted by foreign bridge
const bridgeTokensSwappedEvents = tokensSwappedEvents.filter(e => e.address === COMMON_FOREIGN_BRIDGE_ADDRESS)
// Get transfer events for each previous erc20
const uniqueTokenAddressesSet = new Set(bridgeTokensSwappedEvents.map(e => e.returnValues.from))
// Exclude chai token from previous erc20
try {
logger.debug('calling foreignBridge.chaiToken() to remove it from half duplex tokens list')
const chaiToken = await foreignBridge.methods.chaiToken().call()
uniqueTokenAddressesSet.delete(chaiToken)
} catch (e) {
logger.debug('call to foreignBridge.chaiToken() failed')
}
// Exclude dai token from previous erc20
try {
logger.debug('calling foreignBridge.erc20token() to remove it from half duplex tokens list')
const daiToken = await foreignBridge.methods.erc20token().call()
uniqueTokenAddressesSet.delete(daiToken)
} catch (e) {
logger.debug('call to foreignBridge.erc20token() failed')
}
const uniqueTokenAddresses = [...uniqueTokenAddressesSet]
await Promise.all(
uniqueTokenAddresses.map(async tokenAddress => {
const halfDuplexTokenContract = new web3Foreign.eth.Contract(ERC20_ABI, tokenAddress)
logger.debug('Half duplex token:', tokenAddress)
logger.debug("calling halfDuplexTokenContract.getPastEvents('Transfer')")
// https://etherscan.io/tx/0xd0c3c92c94e05bc71256055ce8c4c993e047f04e04f3283a04e4cb077b71f6c6
const blockNumberHalfDuplexDisabled = 9884448
const halfDuplexTransferEvents = (await getPastEvents(halfDuplexTokenContract, {
event: 'Transfer',
fromBlock: MONITOR_FOREIGN_START_BLOCK,
toBlock: Math.min(blockNumberHalfDuplexDisabled, foreignDelayedBlockNumber),
toBlock: foreignDelayedBlockNumber,
options: {
filter: { to: COMMON_FOREIGN_BRIDGE_ADDRESS }
},
chain: 'foreign'
})).map(normalizeEvent)
transferEvents = [...halfDuplexTransferEvents, ...transferEvents]
// Remove events after the ES
logger.debug('filtering half duplex transfers happened before ES')
const validHalfDuplexTransfers = await filterTransferBeforeES(halfDuplexTransferEvents)
transferEvents = [...validHalfDuplexTransfers, ...transferEvents]
})
)
// filter transfer that is part of a token swap
directTransfers = transferEvents.filter(
e =>
bridgeTokensSwappedEvents.findIndex(
t => t.transactionHash === e.referenceTx && e.recipient === ZERO_ADDRESS
) === -1
)
}
// Get transfer events that didn't have a UserRequestForAffirmation event in the same transaction
const directTransfers = transferEvents.filter(
directTransfers = directTransfers.filter(
e => foreignToHomeRequests.findIndex(t => t.referenceTx === e.referenceTx) === -1
)

@ -0,0 +1,27 @@
// https://etherscan.io/tx/0xd0c3c92c94e05bc71256055ce8c4c993e047f04e04f3283a04e4cb077b71f6c6
const blockNumberHalfDuplexDisabled = 9884448
/**
* Returns true if the event was before the bridge stopped supporting half duplex transfers.
*/
async function transferBeforeES(event) {
return event.blockNumber < blockNumberHalfDuplexDisabled
}
async function filterTransferBeforeES(array) {
const newArray = []
// Iterate events from newer to older
for (let i = array.length - 1; i >= 0; i--) {
const beforeES = await transferBeforeES(array[i])
if (beforeES) {
// add element to first position so the new array will have the same order
newArray.unshift(array[i])
}
}
return newArray
}
module.exports = {
filterTransferBeforeES,
blockNumberHalfDuplexDisabled
}

@ -1,6 +1,5 @@
const Web3 = require('web3')
const assert = require('assert')
const { ASYNC_CALL_ERRORS } = require('../../oracle/src/utils/constants')
const { user, homeRPC, foreignRPC, amb, validator } = require('../../e2e-commons/constants.json')
const { uniformRetry } = require('../../e2e-commons/utils')
const { BOX_ABI, HOME_AMB_ABI, FOREIGN_AMB_ABI, ambInformationSignatures } = require('../../commons')
@ -304,7 +303,7 @@ describe('arbitrary message bridging', () => {
await makeAsyncCall(selector, data2)
assert(!(await homeBox.methods.status().call()), 'status is true')
assert.strictEqual(await homeBox.methods.data().call(), ASYNC_CALL_ERRORS.REVERT, 'returned data is incorrect')
assert.strictEqual(await homeBox.methods.data().call(), null, 'returned data is incorrect')
const data3 = homeWeb3.eth.abi.encodeParameters(
['address', 'address', 'uint256', 'bytes'],
@ -314,7 +313,7 @@ describe('arbitrary message bridging', () => {
await makeAsyncCall(selector, data3)
assert(!(await homeBox.methods.status().call()), 'status is true')
assert.strictEqual(await homeBox.methods.data().call(), ASYNC_CALL_ERRORS.REVERT, 'returned data is incorrect')
assert.strictEqual(await homeBox.methods.data().call(), null, 'returned data is incorrect')
})
it('should make async eth_call for specific block', async () => {
@ -355,11 +354,6 @@ describe('arbitrary message bridging', () => {
await makeAsyncCall(selector, data3)
assert(!(await homeBox.methods.status().call()), 'status is true')
assert.strictEqual(
await homeBox.methods.data().call(),
ASYNC_CALL_ERRORS.BLOCK_IS_IN_THE_FUTURE,
'returned data is incorrect'
)
})
it('should make async eth_blockNumber', async () => {

@ -33,10 +33,6 @@ const homeBridge = new homeWeb3.eth.Contract(HOME_ERC_TO_NATIVE_ABI, COMMON_HOME
describe('erc to native', () => {
before(async () => {
console.log('Initializing interest')
await foreignBridge.methods
.initializeInterest(ercToNativeBridge.foreignToken, 1, 1, validator.address)
.send({ from: validator.address, gas: '4000000' })
if (process.env.ULTIMATE === 'true') {
return
}
@ -116,7 +112,6 @@ describe('erc to native', () => {
.catch(e => {
console.error(e)
})
await foreignBridge.methods.investDai().send({ from: validator.address, gas: '4000000' })
// check that balance increases
await uniformRetry(async retry => {

@ -1,10 +1,10 @@
# POA TokenBridge / Oracle
An oracle responsible for listening to bridge related events and authorizing asset transfers.
Oracle responsible for listening to bridge related events and authorizing asset transfers.
## Overview
Please refer to the [POA TokenBridge](../README.md) overview first of all.
The oracle is deployed on specified validator nodes (only nodes whose private keys correspond to addresses specified in the smart contracts) in the network. It connects to two chains via a Remote Procedure Call (RPC) and is responsible for:
The Oracle is deployed on specified validator nodes (only nodes whose private keys correspond to addresses specified in the smart contracts) in the network. It connects to two chains via a Remote Procedure Call (RPC) and is responsible for:
- listening to events related to bridge contracts
- sending transactions to authorize asset transfers
@ -69,7 +69,7 @@ For more information on the Redis/RabbitMQ requirements, see [#90](/../../issues
}
```
## Install and configure the oracle
## Install and configure the Oracle
1. [Initialize](../README.md#initializing-the-monorepository) the monorepository.

@ -7,15 +7,7 @@ const {
HOME_AMB_ABI,
FOREIGN_AMB_ABI
} = require('../../commons')
const {
web3Home,
web3Foreign,
web3HomeRedundant,
web3HomeFallback,
web3ForeignRedundant,
web3ForeignFallback,
web3ForeignArchive
} = require('../src/services/web3')
const { web3Home, web3Foreign } = require('../src/services/web3')
const { add0xPrefix, privateKeyToAddress } = require('../src/utils/utils')
const { EXIT_CODES } = require('../src/utils/constants')
@ -31,15 +23,7 @@ const {
ORACLE_HOME_START_BLOCK,
ORACLE_FOREIGN_START_BLOCK,
ORACLE_HOME_RPC_BLOCK_POLLING_LIMIT,
ORACLE_FOREIGN_RPC_BLOCK_POLLING_LIMIT,
ORACLE_HOME_EVENTS_REPROCESSING,
ORACLE_HOME_EVENTS_REPROCESSING_BATCH_SIZE,
ORACLE_HOME_EVENTS_REPROCESSING_BLOCK_DELAY,
ORACLE_HOME_RPC_SYNC_STATE_CHECK_INTERVAL,
ORACLE_FOREIGN_EVENTS_REPROCESSING,
ORACLE_FOREIGN_EVENTS_REPROCESSING_BATCH_SIZE,
ORACLE_FOREIGN_EVENTS_REPROCESSING_BLOCK_DELAY,
ORACLE_FOREIGN_RPC_SYNC_STATE_CHECK_INTERVAL
ORACLE_FOREIGN_RPC_BLOCK_POLLING_LIMIT
} = process.env
let homeAbi
@ -73,19 +57,11 @@ const homeConfig = {
bridgeAddress: COMMON_HOME_BRIDGE_ADDRESS,
bridgeABI: homeAbi,
pollingInterval: parseInt(ORACLE_HOME_RPC_POLLING_INTERVAL, 10),
syncCheckInterval: parseInt(ORACLE_HOME_RPC_SYNC_STATE_CHECK_INTERVAL, 10) || 60000,
startBlock: parseInt(ORACLE_HOME_START_BLOCK, 10) || 0,
blockPollingLimit: parseInt(ORACLE_HOME_RPC_BLOCK_POLLING_LIMIT, 10),
web3: web3Home,
web3Redundant: web3HomeRedundant,
web3Fallback: web3HomeFallback,
bridgeContract: homeContract,
eventContract: homeContract,
reprocessingOptions: {
enabled: ORACLE_HOME_EVENTS_REPROCESSING === 'true',
batchSize: parseInt(ORACLE_HOME_EVENTS_REPROCESSING_BATCH_SIZE, 10) || 1000,
blockDelay: parseInt(ORACLE_HOME_EVENTS_REPROCESSING_BLOCK_DELAY, 10) || 500
}
eventContract: homeContract
}
const foreignContract = new web3Foreign.eth.Contract(foreignAbi, COMMON_FOREIGN_BRIDGE_ADDRESS)
@ -94,20 +70,11 @@ const foreignConfig = {
bridgeAddress: COMMON_FOREIGN_BRIDGE_ADDRESS,
bridgeABI: foreignAbi,
pollingInterval: parseInt(ORACLE_FOREIGN_RPC_POLLING_INTERVAL, 10),
syncCheckInterval: parseInt(ORACLE_FOREIGN_RPC_SYNC_STATE_CHECK_INTERVAL, 10) || 60000,
startBlock: parseInt(ORACLE_FOREIGN_START_BLOCK, 10) || 0,
blockPollingLimit: parseInt(ORACLE_FOREIGN_RPC_BLOCK_POLLING_LIMIT, 10),
web3: web3Foreign,
web3Redundant: web3ForeignRedundant,
web3Fallback: web3ForeignFallback,
web3Archive: web3ForeignArchive || web3Foreign,
bridgeContract: foreignContract,
eventContract: foreignContract,
reprocessingOptions: {
enabled: ORACLE_FOREIGN_EVENTS_REPROCESSING === 'true',
batchSize: parseInt(ORACLE_FOREIGN_EVENTS_REPROCESSING_BATCH_SIZE, 10) || 500,
blockDelay: parseInt(ORACLE_FOREIGN_EVENTS_REPROCESSING_BLOCK_DELAY, 10) || 250
}
eventContract: foreignContract
}
const maxProcessingTime =

@ -1,37 +0,0 @@
const baseConfig = require('./base.config')
const { DEFAULT_TRANSACTION_RESEND_INTERVAL } = require('../src/utils/constants')
const { MEV_HELPER_ABI } = require('../src/utils/mev')
const { web3Foreign, getFlashbotsProvider } = require('../src/services/web3')
const {
ORACLE_FOREIGN_TX_RESEND_INTERVAL,
ORACLE_MEV_FOREIGN_HELPER_CONTRACT_ADDRESS,
ORACLE_MEV_FOREIGN_MIN_GAS_PRICE,
ORACLE_MEV_FOREIGN_FLAT_MINER_FEE,
ORACLE_MEV_FOREIGN_MAX_PRIORITY_FEE_PER_GAS,
ORACLE_MEV_FOREIGN_MAX_FEE_PER_GAS,
ORACLE_MEV_FOREIGN_BUNDLES_BLOCK_RANGE
} = process.env
const contract = new baseConfig.foreign.web3.eth.Contract(MEV_HELPER_ABI, ORACLE_MEV_FOREIGN_HELPER_CONTRACT_ADDRESS)
module.exports = {
...baseConfig,
pollingInterval: baseConfig.foreign.pollingInterval,
mevForeign: {
contractAddress: ORACLE_MEV_FOREIGN_HELPER_CONTRACT_ADDRESS,
contract,
minGasPrice: ORACLE_MEV_FOREIGN_MIN_GAS_PRICE,
flatMinerFee: ORACLE_MEV_FOREIGN_FLAT_MINER_FEE,
maxPriorityFeePerGas: ORACLE_MEV_FOREIGN_MAX_PRIORITY_FEE_PER_GAS,
maxFeePerGas: ORACLE_MEV_FOREIGN_MAX_FEE_PER_GAS,
bundlesPerIteration: Math.max(parseInt(ORACLE_MEV_FOREIGN_BUNDLES_BLOCK_RANGE, 10) || 5, 1),
getFlashbotsProvider
},
mevJobsRedisKey: `${baseConfig.id}-collected-signatures-mev:mevJobs`,
id: 'mev-sender-foreign',
name: 'mev-sender-foreign',
web3: web3Foreign,
resendInterval: parseInt(ORACLE_FOREIGN_TX_RESEND_INTERVAL, 10) || DEFAULT_TRANSACTION_RESEND_INTERVAL
}

@ -1,14 +1,18 @@
const baseConfig = require('./base.config')
const { DEFAULT_TRANSACTION_RESEND_INTERVAL } = require('../src/utils/constants')
const { web3Foreign, web3ForeignRedundant, web3ForeignFallback } = require('../src/services/web3')
const { ORACLE_FOREIGN_TX_RESEND_INTERVAL } = process.env
module.exports = {
...baseConfig,
main: baseConfig.foreign,
queue: 'foreign-prioritized',
oldQueue: 'foreign',
id: 'foreign',
name: 'sender-foreign',
web3: web3Foreign,
web3Redundant: web3ForeignRedundant,
web3Fallback: web3ForeignFallback,
resendInterval: parseInt(ORACLE_FOREIGN_TX_RESEND_INTERVAL, 10) || DEFAULT_TRANSACTION_RESEND_INTERVAL
}

@ -1,14 +1,18 @@
const baseConfig = require('./base.config')
const { DEFAULT_TRANSACTION_RESEND_INTERVAL } = require('../src/utils/constants')
const { web3Home, web3HomeRedundant, web3HomeFallback } = require('../src/services/web3')
const { ORACLE_HOME_TX_RESEND_INTERVAL } = process.env
module.exports = {
...baseConfig,
main: baseConfig.home,
queue: 'home-prioritized',
oldQueue: 'home',
id: 'home',
name: 'sender-home',
web3: web3Home,
web3Redundant: web3HomeRedundant,
web3Fallback: web3HomeFallback,
resendInterval: parseInt(ORACLE_HOME_TX_RESEND_INTERVAL, 10) || DEFAULT_TRANSACTION_RESEND_INTERVAL
}

@ -1,9 +1,11 @@
const baseConfig = require('./base.config')
const { web3ForeignArchive } = require('../src/services/web3')
const id = `${baseConfig.id}-information-request`
module.exports = {
...baseConfig,
web3ForeignArchive: web3ForeignArchive || baseConfig.foreign.web3,
main: baseConfig.home,
event: 'UserRequestForInformation',
sender: 'home',

@ -1,30 +0,0 @@
const baseConfig = require('./base.config')
const { MEV_HELPER_ABI } = require('../src/utils/mev')
const {
ORACLE_MEV_FOREIGN_HELPER_CONTRACT_ADDRESS,
ORACLE_MEV_FOREIGN_MIN_GAS_PRICE,
ORACLE_MEV_FOREIGN_FLAT_MINER_FEE,
ORACLE_MEV_FOREIGN_MAX_PRIORITY_FEE_PER_GAS,
ORACLE_MEV_FOREIGN_MAX_FEE_PER_GAS
} = process.env
const id = `${baseConfig.id}-collected-signatures-mev`
const contract = new baseConfig.foreign.web3.eth.Contract(MEV_HELPER_ABI, ORACLE_MEV_FOREIGN_HELPER_CONTRACT_ADDRESS)
module.exports = {
...baseConfig,
mevForeign: {
contractAddress: ORACLE_MEV_FOREIGN_HELPER_CONTRACT_ADDRESS,
contract,
minGasPrice: ORACLE_MEV_FOREIGN_MIN_GAS_PRICE,
flatMinerFee: ORACLE_MEV_FOREIGN_FLAT_MINER_FEE,
maxPriorityFeePerGas: ORACLE_MEV_FOREIGN_MAX_PRIORITY_FEE_PER_GAS,
maxFeePerGas: ORACLE_MEV_FOREIGN_MAX_FEE_PER_GAS
},
main: baseConfig.home,
event: 'CollectedSignatures',
name: `watcher-${id}`,
id
}

@ -1,61 +0,0 @@
---
version: '2.4'
services:
redis:
cpus: 0.1
mem_limit: 500m
command: [ redis-server, --appendonly, 'yes' ]
hostname: redis
image: redis:4
restart: unless-stopped
volumes: [ '~/bridge_data/helpers/redis:/data' ]
interestFetcher:
cpus: 0.1
mem_limit: 500m
image: poanetwork/tokenbridge-oracle:latest
env_file: ./.env
environment:
NODE_ENV: production
INTEREST_FETCHER_PRIVATE_KEY: ${INTEREST_FETCHER_PRIVATE_KEY}
INTEREST_FETCH_CONTRACT_ADDRESS: '0xCd152c7Bd4189Ddee97EaBb783FC5cD93CF2D230'
INTERVAL: 300000
restart: unless-stopped
entrypoint: yarn helper:interestFether
mevWatcher:
cpus: 0.1
mem_limit: 500m
image: poanetwork/tokenbridge-oracle:latest
env_file: ./.env
environment:
NODE_ENV: production
ORACLE_VALIDATOR_ADDRESS: ${ORACLE_VALIDATOR_ADDRESS}
ORACLE_MEV_FOREIGN_HELPER_CONTRACT_ADDRESS: 'TBD'
ORACLE_MEV_FOREIGN_MIN_GAS_PRICE: '50000000000' # 50 gwei
ORACLE_MEV_FOREIGN_FLAT_MINER_FEE: '1500000000000000' # 0.0015 eth = 300k gas * 5 gwei
ORACLE_MEV_FOREIGN_MAX_PRIORITY_FEE_PER_GAS: '0' # 0 gwei
ORACLE_MEV_FOREIGN_MAX_FEE_PER_GAS: '1000000000000' # 1000 gwei
ORACLE_FOREIGN_RPC_POLLING_INTERVAL: '15000' # CollectedSignatures event polling interval
ORACLE_HOME_START_BLOCK: 'TBD'
ORACLE_HOME_SKIP_MANUAL_LANE: 'true'
restart: unless-stopped
entrypoint: yarn mev:watcher:collected-signatures
mevSender:
cpus: 0.1
mem_limit: 500m
image: poanetwork/tokenbridge-oracle:latest
env_file: ./.env
environment:
NODE_ENV: production
ORACLE_VALIDATOR_ADDRESS: ${ORACLE_VALIDATOR_ADDRESS}
ORACLE_VALIDATOR_ADDRESS_PRIVATE_KEY: ${ORACLE_VALIDATOR_ADDRESS_PRIVATE_KEY}
ORACLE_MEV_FOREIGN_HELPER_CONTRACT_ADDRESS: 'TBD'
ORACLE_MEV_FOREIGN_MIN_GAS_PRICE: '50000000000' # 50 gwei
ORACLE_MEV_FOREIGN_FLAT_MINER_FEE: '1500000000000000' # 0.0015 eth = 300k gas * 5 gwei
ORACLE_MEV_FOREIGN_MAX_PRIORITY_FEE_PER_GAS: '0' # 0 gwei
ORACLE_MEV_FOREIGN_MAX_FEE_PER_GAS: '1000000000000' # 1000 gwei
ORACLE_MEV_FOREIGN_FLASHBOTS_RPC_URL: 'https://relay-goerli.flashbots.net'
ORACLE_MEV_FOREIGN_FLASHBOTS_AUTH_SIGNING_KEY: 82db7175932f4e6c8e45283b78b54fd5f195149378ec90d95b8fd0ec8bdadf1d
ORACLE_MEV_FOREIGN_BUNDLES_BLOCK_RANGE: '5'
ORACLE_FOREIGN_RPC_POLLING_INTERVAL: '70000' # time between sending different batches of MEV bundles (~= 5 blocks * 14 seconds)
restart: unless-stopped
entrypoint: yarn mev:sender:foreign

@ -18,10 +18,6 @@
"confirm:collected-signatures": "./scripts/start-worker.sh confirmRelay collected-signatures-watcher",
"confirm:information-request": "./scripts/start-worker.sh confirmRelay information-request-watcher",
"manager:shutdown": "./scripts/start-worker.sh shutdownManager shutdown-manager",
"helper:interestFether": "node ./scripts/interestFetcher.js",
"helper:signPendingMessages": "node ./scripts/signPendingMessages.js",
"mev:watcher:collected-signatures": "./scripts/start-worker.sh mevWatcher mev-collected-signatures-watcher",
"mev:sender:foreign": "./scripts/start-worker.sh mevSender foreign-mev-sender",
"dev": "concurrently -n 'watcher:signature-request,watcher:collected-signatures,watcher:affirmation-request,watcher:transfer, sender:home,sender:foreign' -c 'red,green,yellow,blue,magenta,cyan' 'yarn watcher:signature-request' 'yarn watcher:collected-signatures' 'yarn watcher:affirmation-request' 'yarn watcher:transfer' 'yarn sender:home' 'yarn sender:foreign'",
"test": "NODE_ENV=test mocha",
"test:watch": "NODE_ENV=test mocha --watch --reporter=min",
@ -31,19 +27,17 @@
"author": "",
"license": "ISC",
"dependencies": {
"@flashbots/ethers-provider-bundle": "^0.4.3",
"amqp-connection-manager": "^2.0.0",
"amqplib": "^0.5.2",
"bignumber.js": "^7.2.1",
"dotenv": "^5.0.1",
"ethers": "^5.5.3",
"ioredis": "^3.2.2",
"node-fetch": "^2.1.2",
"pino": "^4.17.3",
"pino-pretty": "^2.0.1",
"promise-limit": "^2.7.0",
"promise-retry": "^1.1.1",
"web3": "^1.6.0"
"web3": "^1.3.0"
},
"devDependencies": {
"bn-chai": "^1.0.1",

@ -36,7 +36,7 @@ async function main() {
data,
nonce,
gasPrice: FOREIGN_TEST_TX_GAS_PRICE,
value: '0',
amount: '0',
gasLimit,
to: bridgeableTokenAddress,
web3: web3Foreign,

@ -29,7 +29,7 @@ async function main() {
data: '0x',
nonce,
gasPrice: HOME_TEST_TX_GAS_PRICE,
value: web3Home.utils.toWei(HOME_MIN_AMOUNT_PER_TX),
amount: HOME_MIN_AMOUNT_PER_TX,
gasLimit: 100000,
to: COMMON_HOME_BRIDGE_ADDRESS,
web3: web3Home,

@ -1,65 +0,0 @@
require('../env')
const { isAddress } = require('web3').utils
const { privateKeyToAddress, setIntervalAndRun } = require('../src/utils/utils')
const { EXIT_CODES } = require('../src/utils/constants')
const { web3Home } = require('../src/services/web3')
const { sendTx } = require('../src/tx/sendTx')
const privateKey = process.env.INTEREST_FETCHER_PRIVATE_KEY
const interval = process.env.INTERVAL ? parseInt(process.env.INTERVAL, 10) : 3600 * 1000
const contractAddress = process.env.INTEREST_FETCH_CONTRACT_ADDRESS
if (!privateKey) {
console.error('Environment variable INTEREST_FETCHER_PRIVATE_KEY is not set')
process.exit(EXIT_CODES.GENERAL_ERROR)
}
if (interval < 300 * 1000) {
console.error('Interval is to small, should be at least 5 minutes')
process.exit(EXIT_CODES.GENERAL_ERROR)
}
if (!isAddress(contractAddress)) {
console.error('Invalid contract address provided', contractAddress)
process.exit(EXIT_CODES.GENERAL_ERROR)
}
const gasPrice = process.env.COMMON_HOME_GAS_PRICE_FALLBACK || '1000000000'
async function main() {
// assuming that we are using this contract - https://github.com/omni/interest-fetcher-contract
const contract = new web3Home.eth.Contract([{ name: 'fetchInterest', type: 'function', inputs: [] }], contractAddress)
const chainId = await web3Home.eth.getChainId()
const data = contract.methods.fetchInterest().encodeABI()
const senderAddress = privateKeyToAddress(privateKey)
console.log(
`Initialized, chainId=${chainId}, data=${data}, contract=${contractAddress}, interval=${interval / 1000}s`
)
await setIntervalAndRun(async () => {
let gasLimit
try {
gasLimit = await contract.methods.fetchInterest().estimateGas()
} catch (e) {
console.log('Gas limit estimation failed, will retry later', new Date())
return
}
const nonce = await web3Home.eth.getTransactionCount(senderAddress)
const txHash = await sendTx({
privateKey,
to: contractAddress,
data,
nonce,
gasPrice,
gasLimit: Math.round(gasLimit * 1.5),
value: '0',
chainId,
web3: web3Home
})
console.log('Sent transaction with fetch interest', txHash, new Date())
}, interval)
}
main()

@ -1,83 +0,0 @@
require('dotenv').config()
const {
COMMON_HOME_BRIDGE_ADDRESS,
COMMON_FOREIGN_BRIDGE_ADDRESS,
ORACLE_VALIDATOR_ADDRESS_PRIVATE_KEY,
ORACLE_HOME_START_BLOCK,
ORACLE_HOME_END_BLOCK,
ORACLE_BRIDGE_MODE
} = process.env
const fs = require('fs')
const promiseLimit = require('promise-limit')
const { web3Home, web3Foreign } = require('../src/services/web3')
const { getBridgeABIs, getPastEvents, parseAMBMessage, BRIDGE_MODES } = require('../../commons')
const { setLogger } = require('../src/services/injectedLogger')
const mockLogger = { debug: () => {}, info: () => {}, error: () => {}, child: () => mockLogger }
setLogger(mockLogger)
const limit = promiseLimit(50)
const output = process.argv[2]
async function main() {
const { HOME_ABI, FOREIGN_ABI } = getBridgeABIs(ORACLE_BRIDGE_MODE)
const wallet = web3Home.eth.accounts.wallet.add(ORACLE_VALIDATOR_ADDRESS_PRIVATE_KEY)
const homeBridge = new web3Home.eth.Contract(HOME_ABI, COMMON_HOME_BRIDGE_ADDRESS)
const foreignBridge = new web3Foreign.eth.Contract(FOREIGN_ABI, COMMON_FOREIGN_BRIDGE_ADDRESS)
const fromBlock = parseInt(ORACLE_HOME_START_BLOCK, 10) || 0
let toBlock = parseInt(ORACLE_HOME_END_BLOCK, 10)
if (!toBlock) {
toBlock = await web3Home.eth.getBlockNumber()
}
console.log(`Getting CollectedSignatures events from block ${fromBlock} to block ${toBlock}`)
const events = await getPastEvents(homeBridge, { event: 'CollectedSignatures', fromBlock, toBlock })
console.log(`Found ${events.length} CollectedSignatures events`)
console.log('Getting messages')
let messages = await Promise.all(
events.map((event, i) => () => getMessage(ORACLE_BRIDGE_MODE, homeBridge, foreignBridge, event, i)).map(limit)
)
messages = messages.filter(x => x)
console.log(`Filtered ${messages.length} pending messages`)
const result = {}
messages.forEach(msg => {
result[msg.msgHash] = wallet.sign(msg.message).signature
})
console.log('Writing results')
if (output === '-') {
console.log(JSON.stringify(result))
} else {
fs.writeFileSync(output, JSON.stringify(result))
}
}
async function getMessage(bridgeMode, homeBridge, foreignBridge, event, i) {
if (i % 50 === 0) {
console.log(`Processing event #${i}`)
}
const msgHash = event.returnValues.messageHash
const message = await homeBridge.methods.message(msgHash).call()
let msgId
if (bridgeMode === BRIDGE_MODES.ARBITRARY_MESSAGE) {
msgId = parseAMBMessage(message).messageId
} else {
msgId = `0x${message.slice(106, 170)}`
}
const alreadyProcessed = await foreignBridge.methods.relayedMessages(msgId).call()
if (alreadyProcessed) {
return null
}
return {
msgHash,
message
}
}
main()

@ -6,7 +6,6 @@ const logger = require('./services/logger')
const GasPrice = require('./services/gasPrice')
const { getNonce, getChainId, getEventsFromTx } = require('./tx/web3')
const { sendTx } = require('./tx/sendTx')
const { getTokensState } = require('./utils/tokenState')
const { checkHTTPS, watchdog, syncForEach, addExtraGas } = require('./utils/utils')
const { EXIT_CODES, EXTRA_GAS_PERCENTAGE, MAX_GAS_LIMIT } = require('./utils/constants')
@ -18,7 +17,7 @@ if (process.argv.length < 4) {
}
const config = require(path.join('../config/', process.argv[2]))
const { web3, eventContract, chain, bridgeContract } = config.main
const { web3, eventContract, chain } = config.main
const isTxHash = txHash => txHash.length === 66 && web3.utils.isHexStrict(txHash)
function readTxHashes(filePath) {
@ -50,7 +49,7 @@ async function initialize() {
try {
const checkHttps = checkHTTPS(ORACLE_ALLOW_HTTP_FOR_RPC, logger)
web3.currentProvider.urls.forEach(checkHttps(chain))
web3.currentProvider.subProvider.urls.forEach(checkHttps(chain))
attached = await isAttached()
if (attached) {
@ -115,12 +114,6 @@ function processEvents(events) {
}
async function main({ sendJob, txHashes }) {
if (config.id === 'erc-native-transfer') {
logger.debug('Getting token address to listen Transfer events')
const state = await getTokensState(bridgeContract, logger)
eventContract.options.address = state.bridgeableTokenAddress
}
logger.info(`Processing ${txHashes.length} input transactions`)
for (const txHash of txHashes) {
try {
@ -153,10 +146,10 @@ async function main({ sendJob, txHashes }) {
}
async function sendJobTx(jobs) {
const { web3 } = config.sender === 'foreign' ? config.foreign : config.home
await GasPrice.start(chain, true)
const gasPrice = GasPrice.getPrice().toString(10)
await GasPrice.start(chain, web3, true)
const gasPriceOptions = GasPrice.gasPriceOptions()
const { web3 } = config.sender === 'foreign' ? config.foreign : config.home
const chainId = await getChainId(web3)
let nonce = await getNonce(web3, config.validatorAddress)
@ -174,13 +167,13 @@ async function sendJobTx(jobs) {
const txHash = await sendTx({
data: job.data,
nonce,
value: '0',
gasPrice,
amount: '0',
gasLimit,
privateKey: config.validatorPrivateKey,
to: job.to,
chainId,
web3,
gasPriceOptions
web3
})
nonce++
@ -197,7 +190,7 @@ async function sendJobTx(jobs) {
if (e.message.toLowerCase().includes('insufficient funds')) {
const currentBalance = await web3.eth.getBalance(config.validatorAddress)
const minimumBalance = gasLimit.multipliedBy(gasPriceOptions.gasPrice || gasPriceOptions.maxFeePerGas)
const minimumBalance = gasLimit.multipliedBy(gasPrice)
logger.error(
`Insufficient funds: ${currentBalance}. Stop processing messages until the balance is at least ${minimumBalance}.`
)

@ -15,7 +15,7 @@ async function estimateGas({ web3, homeBridge, validatorContract, message, addre
const gasEstimate = await homeBridge.methods.executeAffirmation(message).estimateGas({
from: address
})
const msgGasLimit = Math.ceil((parseAMBHeader(message).gasLimit * 64) / 63)
const msgGasLimit = parseAMBHeader(message).gasLimit
// message length in bytes
const len = strip0x(message).length / 2 - MIN_AMB_HEADER_LENGTH

@ -4,6 +4,7 @@ const { AlreadyProcessedError, IncompatibleContractError, InvalidValidatorError
const logger = require('../../services/logger').child({
module: 'processCollectedSignatures:estimateGas'
})
const { parseAMBHeader } = require('../../utils/message')
const web3 = new Web3()
const { toBN } = Web3.utils
@ -21,9 +22,15 @@ async function estimateGas({
address
}) {
try {
return await foreignBridge.methods.executeSignatures(message, signatures).estimateGas({
const gasEstimate = await foreignBridge.methods.executeSignatures(message, signatures).estimateGas({
from: address
})
const msgGasLimit = parseAMBHeader(message).gasLimit
// + estimateExtraGas(len)
// is not needed here, since estimateGas will already take into account gas
// needed for memory expansion, message processing, etc.
return gasEstimate + msgGasLimit
} catch (e) {
if (e instanceof HttpListProviderError) {
throw e

@ -1,183 +0,0 @@
require('dotenv').config()
const promiseLimit = require('promise-limit')
const { HttpListProviderError } = require('../../services/HttpListProvider')
const { getValidatorContract } = require('../../tx/web3')
const rootLogger = require('../../services/logger')
const { signatureToVRS, packSignatures } = require('../../utils/message')
const { readAccessListFile, isRevertError } = require('../../utils/utils')
const { parseAMBMessage } = require('../../../../commons')
const estimateGas = require('../processAMBCollectedSignatures/estimateGas')
const { AlreadyProcessedError, IncompatibleContractError, InvalidValidatorError } = require('../../utils/errors')
const { MAX_CONCURRENT_EVENTS, EXTRA_GAS_ABSOLUTE } = require('../../utils/constants')
const limit = promiseLimit(MAX_CONCURRENT_EVENTS)
const { ORACLE_HOME_TO_FOREIGN_ALLOWANCE_LIST, ORACLE_HOME_TO_FOREIGN_BLOCK_LIST } = process.env
const ORACLE_HOME_SKIP_MANUAL_LANE = process.env.ORACLE_HOME_SKIP_MANUAL_LANE === 'true'
function processCollectedSignaturesBuilder(config) {
const { home, foreign, mevForeign } = config
let validatorContract = null
return async function processCollectedSignatures(signatures) {
const txToSend = []
if (validatorContract === null) {
validatorContract = await getValidatorContract(foreign.bridgeContract, foreign.web3)
}
rootLogger.debug(`Processing ${signatures.length} CollectedSignatures events`)
const callbacks = signatures
.map(colSignature => async () => {
const { messageHash, NumberOfCollectedSignatures } = colSignature.returnValues
const logger = rootLogger.child({
eventTransactionHash: colSignature.transactionHash
})
logger.info(`Processing CollectedSignatures ${colSignature.transactionHash}`)
const message = await home.bridgeContract.methods.message(messageHash).call()
const parsedMessage = parseAMBMessage(message)
if (ORACLE_HOME_TO_FOREIGN_ALLOWANCE_LIST || ORACLE_HOME_TO_FOREIGN_BLOCK_LIST) {
const sender = parsedMessage.sender.toLowerCase()
const executor = parsedMessage.executor.toLowerCase()
if (ORACLE_HOME_TO_FOREIGN_ALLOWANCE_LIST) {
const allowanceList = await readAccessListFile(ORACLE_HOME_TO_FOREIGN_ALLOWANCE_LIST, logger)
if (!allowanceList.includes(executor) && !allowanceList.includes(sender)) {
logger.info(
{ sender, executor },
'Validator skips a message. Neither sender nor executor addresses are in the allowance list.'
)
return
}
} else if (ORACLE_HOME_TO_FOREIGN_BLOCK_LIST) {
const blockList = await readAccessListFile(ORACLE_HOME_TO_FOREIGN_BLOCK_LIST, logger)
if (blockList.includes(executor)) {
logger.info({ executor }, 'Validator skips a message. Executor address is in the block list.')
return
}
if (blockList.includes(sender)) {
logger.info({ sender }, 'Validator skips a message. Sender address is in the block list.')
return
}
}
}
if (ORACLE_HOME_SKIP_MANUAL_LANE && parsedMessage.decodedDataType.manualLane) {
logger.info(
{ dataType: parsedMessage.dataType },
'Validator skips a message. Message was forwarded to the manual lane by the extension'
)
return
}
logger.debug({ NumberOfCollectedSignatures }, 'Number of signatures to get')
const requiredSignatures = []
requiredSignatures.length = NumberOfCollectedSignatures
requiredSignatures.fill(0)
const signaturesArray = []
const [v, r, s] = [[], [], []]
logger.debug('Getting message signatures')
const signaturePromises = requiredSignatures.map(async (el, index) => {
logger.debug({ index }, 'Getting message signature')
const signature = await home.bridgeContract.methods.signature(messageHash, index).call()
const vrs = signatureToVRS(signature)
v.push(vrs.v)
r.push(vrs.r)
s.push(vrs.s)
signaturesArray.push(vrs)
})
await Promise.all(signaturePromises)
const signatures = packSignatures(signaturesArray)
logger.info(`Processing messageId: ${parsedMessage.messageId}`)
let gasEstimate
try {
logger.debug('Estimate gas')
gasEstimate = await estimateGas({
foreignBridge: foreign.bridgeContract,
validatorContract,
v,
r,
s,
signatures,
message,
numberOfCollectedSignatures: NumberOfCollectedSignatures,
messageId: parsedMessage.messageId,
address: config.validatorAddress
})
logger.debug({ gasEstimate }, 'Gas estimated')
} catch (e) {
if (e instanceof HttpListProviderError) {
throw new Error('RPC Connection Error: submitSignature Gas Estimate cannot be obtained.')
} else if (e instanceof AlreadyProcessedError) {
logger.info(`Already processed CollectedSignatures ${colSignature.transactionHash}`)
return
} else if (e instanceof IncompatibleContractError || e instanceof InvalidValidatorError) {
logger.error(`The message couldn't be processed; skipping: ${e.message}`)
return
} else {
logger.error(e, 'Unknown error while processing transaction')
throw e
}
}
const executeData = foreign.bridgeContract.methods.executeSignatures(message, signatures).encodeABI()
const profit = await estimateProfit(
mevForeign.contract,
mevForeign.minGasPrice,
executeData,
mevForeign.flatMinerFee
)
if (profit === '0') {
logger.error('No MEV opportunity found when testing with min gas price, skipping job')
return
}
logger.info(`Estimated profit of ${profit} when simulating with ${mevForeign.minGasPrice} gas price`)
txToSend.push({
profit,
executeData,
data: mevForeign.contract.methods.execute(executeData).encodeABI(),
gasEstimate,
extraGas: EXTRA_GAS_ABSOLUTE,
maxFeePerGas: mevForeign.maxFeePerGas,
maxPriorityFeePerGas: mevForeign.maxPriorityFeePerGas,
transactionReference: colSignature.transactionHash,
to: mevForeign.contractAddress,
value: mevForeign.flatMinerFee
})
})
.map(promise => limit(promise))
await Promise.all(callbacks)
return txToSend
}
}
async function estimateProfit(contract, gasPrice, data, minerFee) {
return contract.methods
.estimateProfit(gasPrice, data)
.call({ value: minerFee })
.then(
res => res.toString(),
e => {
if (isRevertError(e)) {
return '0'
}
throw e
}
)
}
module.exports = {
processCollectedSignaturesBuilder,
estimateProfit
}

@ -1,7 +1,6 @@
const { toBN } = require('web3').utils
const { ASYNC_CALL_ERRORS, ASYNC_ETH_CALL_MAX_GAS_LIMIT } = require('../../../utils/constants')
const { zipToObject, isRevertError } = require('../../../utils/utils')
const { zipToObject } = require('../../../utils/utils')
const argTypes = {
to: 'address',
@ -18,23 +17,14 @@ function makeCall(argNames) {
const { blockNumber, ...opts } = zipToObject(argNames, args)
if (blockNumber && toBN(blockNumber).gt(toBN(foreignBlock.number))) {
return [false, ASYNC_CALL_ERRORS.BLOCK_IS_IN_THE_FUTURE]
return [false, '0x']
}
// different clients might use different default gas limits, so it makes sense to limit it by some large number
if (!opts.gas || toBN(opts.gas).gt(toBN(ASYNC_ETH_CALL_MAX_GAS_LIMIT))) {
opts.gas = ASYNC_ETH_CALL_MAX_GAS_LIMIT
}
return web3.eth
const [status, result] = await web3.eth
.call(opts, blockNumber || foreignBlock.number)
.then(result => [true, web3.eth.abi.encodeParameter('bytes', result)])
.catch(e => {
if (isRevertError(e)) {
return [false, ASYNC_CALL_ERRORS.REVERT]
}
throw e
})
.then(result => [true, result], err => [false, err.data])
return [status, web3.eth.abi.encodeParameter('bytes', result)]
}
}

@ -1,7 +1,5 @@
const { toBN } = require('web3').utils
const { ASYNC_CALL_ERRORS } = require('../../../utils/constants')
async function call(web3, data, foreignBlock) {
const address = web3.eth.abi.decodeParameter('address', data)
@ -14,7 +12,7 @@ async function callArchive(web3, data, foreignBlock) {
const { 0: address, 1: blockNumber } = web3.eth.abi.decodeParameters(['address', 'uint256'], data)
if (toBN(blockNumber).gt(toBN(foreignBlock.number))) {
return [false, ASYNC_CALL_ERRORS.BLOCK_IS_IN_THE_FUTURE]
return [false, '0x']
}
const balance = await web3.eth.getBalance(address, blockNumber)

@ -1,4 +1,3 @@
const { ASYNC_CALL_ERRORS } = require('../../../utils/constants')
const { serializeBlock } = require('./serializers')
async function call(web3, data, foreignBlock) {
@ -7,7 +6,7 @@ async function call(web3, data, foreignBlock) {
const block = await web3.eth.getBlock(blockHash)
if (block === null || block.number > foreignBlock.number) {
return [false, ASYNC_CALL_ERRORS.NOT_FOUND]
return [false, '0x']
}
return [true, serializeBlock(web3, block)]

@ -1,13 +1,12 @@
const { toBN } = require('web3').utils
const { ASYNC_CALL_ERRORS } = require('../../../utils/constants')
const { serializeBlock } = require('./serializers')
async function call(web3, data, foreignBlock) {
const blockNumber = web3.eth.abi.decodeParameter('uint256', data)
if (toBN(blockNumber).gt(toBN(foreignBlock.number))) {
return [false, ASYNC_CALL_ERRORS.BLOCK_IS_IN_THE_FUTURE]
return [false, '0x']
}
const block = await web3.eth.getBlock(blockNumber)

@ -1,7 +1,5 @@
const { toBN } = require('web3').utils
const { ASYNC_CALL_ERRORS } = require('../../../utils/constants')
async function call(web3, data, foreignBlock) {
const { 0: address, 1: slot } = web3.eth.abi.decodeParameters(['address', 'bytes32'], data)
@ -14,7 +12,7 @@ async function callArchive(web3, data, foreignBlock) {
const { 0: address, 1: slot, 2: blockNumber } = web3.eth.abi.decodeParameters(['address', 'bytes32', 'uint256'], data)
if (toBN(blockNumber).gt(toBN(foreignBlock.number))) {
return [false, ASYNC_CALL_ERRORS.BLOCK_IS_IN_THE_FUTURE]
return [false, '0x']
}
const value = await web3.eth.getStorageAt(address, slot, blockNumber)

@ -1,4 +1,3 @@
const { ASYNC_CALL_ERRORS } = require('../../../utils/constants')
const { serializeTx } = require('./serializers')
async function call(web3, data, foreignBlock) {
@ -7,7 +6,7 @@ async function call(web3, data, foreignBlock) {
const tx = await web3.eth.getTransaction(hash)
if (tx === null || tx.blockNumber > foreignBlock.number) {
return [false, ASYNC_CALL_ERRORS.NOT_FOUND]
return [false, '0x']
}
return [true, serializeTx(web3, tx)]

@ -1,7 +1,5 @@
const { toBN } = require('web3').utils
const { ASYNC_CALL_ERRORS } = require('../../../utils/constants')
async function call(web3, data, foreignBlock) {
const address = web3.eth.abi.decodeParameter('address', data)
@ -14,7 +12,7 @@ async function callArchive(web3, data, foreignBlock) {
const { 0: address, 1: blockNumber } = web3.eth.abi.decodeParameters(['address', 'uint256'], data)
if (toBN(blockNumber).gt(toBN(foreignBlock.number))) {
return [false, ASYNC_CALL_ERRORS.BLOCK_IS_IN_THE_FUTURE]
return [false, '0x']
}
const nonce = await web3.eth.getTransactionCount(address, blockNumber)

@ -1,4 +1,3 @@
const { ASYNC_CALL_ERRORS } = require('../../../utils/constants')
const { serializeReceipt } = require('./serializers')
async function call(web3, data, foreignBlock) {
@ -7,7 +6,7 @@ async function call(web3, data, foreignBlock) {
const receipt = await web3.eth.getTransactionReceipt(hash)
if (receipt === null || receipt.blockNumber > foreignBlock.number) {
return [false, ASYNC_CALL_ERRORS.NOT_FOUND]
return [false, '0x']
}
return [true, serializeReceipt(web3, receipt)]

@ -24,8 +24,7 @@ async function estimateGas({
// message length in bytes
const len = strip0x(result).length / 2
let callbackGasLimit = parseInt(await homeBridge.methods.maxGasPerTx().call(), 10)
callbackGasLimit = Math.ceil((callbackGasLimit * 64) / 63)
const callbackGasLimit = parseInt(await homeBridge.methods.maxGasPerTx().call(), 10)
return gasEstimate + callbackGasLimit + estimateExtraGas(len)
} catch (e) {

@ -4,13 +4,7 @@ const { soliditySha3 } = require('web3').utils
const { HttpListProviderError } = require('../../services/HttpListProvider')
const rootLogger = require('../../services/logger')
const makeBlockFinder = require('../../services/blockFinder')
const {
EXIT_CODES,
MAX_CONCURRENT_EVENTS,
EXTRA_GAS_ABSOLUTE,
ASYNC_CALL_ERRORS,
MAX_ASYNC_CALL_RESULT_LENGTH
} = require('../../utils/constants')
const { EXIT_CODES, MAX_CONCURRENT_EVENTS, EXTRA_GAS_ABSOLUTE } = require('../../utils/constants')
const estimateGas = require('./estimateGas')
const { getValidatorContract, getBlock, getBlockNumber, getRequiredBlockConfirmations } = require('../../tx/web3')
const { AlreadyProcessedError, AlreadySignedError, InvalidValidatorError } = require('../../utils/errors')
@ -35,13 +29,11 @@ Object.keys(asyncCalls).forEach(method => {
})
function processInformationRequestsBuilder(config) {
const { home, foreign } = config
const { home, foreign, web3ForeignArchive } = config
let validatorContract = null
let blockFinder = null
foreign.web3Archive.currentProvider.startSyncStateChecker(foreign.syncCheckInterval)
return async function processInformationRequests(informationRequests) {
const txToSend = []
@ -51,15 +43,13 @@ function processInformationRequestsBuilder(config) {
if (blockFinder === null) {
rootLogger.debug('Initializing block finder')
blockFinder = await makeBlockFinder('foreign', foreign.web3Archive)
blockFinder = await makeBlockFinder('foreign', foreign.web3)
}
// latest foreign block is requested from an archive RPC, to ensure that it is synced with the network
// block confirmations can be requested from the regular JSON RPC
const foreignBlockNumber =
(await getBlockNumber(foreign.web3Archive)) - (await getRequiredBlockConfirmations(foreign.bridgeContract))
(await getBlockNumber(foreign.web3)) - (await getRequiredBlockConfirmations(foreign.bridgeContract))
const homeBlock = await getBlock(home.web3, informationRequests[0].blockNumber)
const lastForeignBlock = await getBlock(foreign.web3Archive, foreignBlockNumber)
const lastForeignBlock = await getBlock(foreign.web3, foreignBlockNumber)
if (homeBlock.timestamp > lastForeignBlock.timestamp) {
rootLogger.debug(
@ -89,17 +79,12 @@ function processInformationRequestsBuilder(config) {
logger.info({ requestSelector, method: asyncCallMethod, data }, 'Processing async request')
const call = asyncCalls[asyncCallMethod]
let [status, result] = await call(foreign.web3Archive, data, foreignClosestBlock).catch(e => {
const [status, result] = await call(web3ForeignArchive, data, foreignClosestBlock).catch(e => {
if (e instanceof HttpListProviderError) {
throw e
}
logger.error({ error: e.message }, 'Unknown error during async call execution')
throw e
return [false, '0x']
})
if (result.length > 2 + MAX_ASYNC_CALL_RESULT_LENGTH * 2) {
status = false
result = ASYNC_CALL_ERRORS.RESULT_IS_TOO_LONG
}
logger.info({ requestSelector, method: asyncCallMethod, status, result }, 'Request result obtained')
let gasEstimate

@ -6,9 +6,11 @@ const logger = require('../../services/logger').child({
async function estimateGas({ web3, homeBridge, validatorContract, recipient, value, txHash, address }) {
try {
return await homeBridge.methods.executeAffirmation(recipient, value, txHash).estimateGas({
const gasEstimate = await homeBridge.methods.executeAffirmation(recipient, value, txHash).estimateGas({
from: address
})
return gasEstimate
} catch (e) {
if (e instanceof HttpListProviderError) {
throw e

@ -20,7 +20,8 @@ async function estimateGas({
signatures
}) {
try {
return await foreignBridge.methods.executeSignatures(message, signatures).estimateGas()
const gasEstimate = await foreignBridge.methods.executeSignatures(message, signatures).estimateGas()
return gasEstimate
} catch (e) {
if (e instanceof HttpListProviderError) {
throw e

@ -6,9 +6,10 @@ const logger = require('../../services/logger').child({
async function estimateGas({ web3, homeBridge, validatorContract, signature, message, address }) {
try {
return await homeBridge.methods.submitSignature(signature, message).estimateGas({
const gasEstimate = await homeBridge.methods.submitSignature(signature, message).estimateGas({
from: address
})
return gasEstimate
} catch (e) {
if (e instanceof HttpListProviderError) {
throw e

@ -13,25 +13,12 @@ const limit = promiseLimit(MAX_CONCURRENT_EVENTS)
function processTransfersBuilder(config) {
const { bridgeContract, web3 } = config.home
const userRequestForAffirmationHash = web3.eth.abi.encodeEventSignature('UserRequestForAffirmation(address,uint256)')
const redeemHash = web3.eth.abi.encodeEventSignature('Redeem(address,uint256,uint256)')
const transferHash = web3.eth.abi.encodeEventSignature('Transfer(address,address,uint256)')
const foreignBridgeAddress = config.foreign.bridgeAddress
const decodeAddress = data => web3.eth.abi.decodeParameter('address', data)
const isUserRequestForAffirmation = e =>
e.address.toLowerCase() === foreignBridgeAddress.toLowerCase() && e.topics[0] === userRequestForAffirmationHash
const isRedeem = cTokenAddress => e =>
e.address.toLowerCase() === cTokenAddress.toLowerCase() &&
e.topics[0] === redeemHash &&
decodeAddress(e.data.slice(0, 66)).toLowerCase() === foreignBridgeAddress.toLowerCase()
const isCTokenTransfer = cTokenAddress => e =>
e.address.toLowerCase() === cTokenAddress.toLowerCase() &&
e.topics[0] === transferHash &&
decodeAddress(e.topics[1]).toLowerCase() === foreignBridgeAddress.toLowerCase() &&
decodeAddress(e.topics[2]).toLowerCase() === cTokenAddress.toLowerCase()
const userRequestForAffirmationAbi = config.foreign.bridgeABI.find(
e => e.type === 'event' && e.name === 'UserRequestForAffirmation'
)
const tokensSwappedAbi = config.foreign.bridgeABI.find(e => e.type === 'event' && e.name === 'TokensSwapped')
const userRequestForAffirmationHash = web3.eth.abi.encodeEventSignature(userRequestForAffirmationAbi)
const tokensSwappedHash = tokensSwappedAbi ? web3.eth.abi.encodeEventSignature(tokensSwappedAbi) : '0x'
let validatorContract = null
@ -45,35 +32,37 @@ function processTransfersBuilder(config) {
rootLogger.debug(`Processing ${transfers.length} Transfer events`)
const callbacks = transfers
.map(transfer => async () => {
const { from, to, value } = transfer.returnValues
const { from, value } = transfer.returnValues
const logger = rootLogger.child({
eventTransactionHash: transfer.transactionHash,
from,
to,
value
eventTransactionHash: transfer.transactionHash
})
logger.info('Processing transfer')
logger.info({ from, value }, `Processing transfer ${transfer.transactionHash}`)
const receipt = await config.foreign.web3.eth.getTransactionReceipt(transfer.transactionHash)
if (receipt.logs.some(isUserRequestForAffirmation)) {
logger.info('Transfer event discarded because affirmation is detected in the same transaction')
const existsAffirmationEvent = receipt.logs.some(
e => e.address === config.foreign.bridgeAddress && e.topics[0] === userRequestForAffirmationHash
)
if (existsAffirmationEvent) {
logger.info(
`Transfer event discarded because a transaction with alternative receiver detected in transaction ${
transfer.transactionHash
}`
)
return
}
if (from === ZERO_ADDRESS) {
logger.info('Mint-like transfers from zero address are not processed')
return
}
const existsTokensSwappedEvent = tokensSwappedAbi
? receipt.logs.some(e => e.address === config.foreign.bridgeAddress && e.topics[0] === tokensSwappedHash)
: false
// when bridge performs a withdrawal from Compound, the following three events occur
// * token.Transfer(from=cToken, to=bridge, amount=X)
// * cToken.Redeem(redeemer=bridge, amount=X, tokens=Y)
// * cToken.Transfer(from=bridge, to=cToken, amount=Y)
if (receipt.logs.some(isRedeem(from)) && receipt.logs.some(isCTokenTransfer(from))) {
logger.info('Transfer event discarded because cToken redeem is detected in the same transaction')
if (from === ZERO_ADDRESS && existsTokensSwappedEvent) {
logger.info(
`Transfer event discarded because token swap is detected in transaction ${transfer.transactionHash}`
)
return
}

@ -1,159 +0,0 @@
require('../env')
const path = require('path')
const BigNumber = require('bignumber.js')
const { redis } = require('./services/redisClient')
const logger = require('./services/logger')
const { sendTx } = require('./tx/sendTx')
const { getNonce, getChainId, getBlock } = require('./tx/web3')
const { addExtraGas, checkHTTPS, watchdog } = require('./utils/utils')
const { EXIT_CODES, EXTRA_GAS_PERCENTAGE, MAX_GAS_LIMIT } = require('./utils/constants')
const { estimateProfit } = require('./events/processAMBCollectedSignaturesMEV')
if (process.argv.length < 3) {
logger.error('Please check the number of arguments, config file was not provided')
process.exit(EXIT_CODES.GENERAL_ERROR)
}
const config = require(path.join('../config/', process.argv[2]))
const { web3, mevForeign, validatorAddress } = config
let chainId = 0
let flashbotsProvider
async function initialize() {
try {
const checkHttps = checkHTTPS(process.env.ORACLE_ALLOW_HTTP_FOR_RPC, logger)
web3.currentProvider.urls.forEach(checkHttps(config.id))
chainId = await getChainId(web3)
flashbotsProvider = await mevForeign.getFlashbotsProvider(chainId)
return runMain()
} catch (e) {
logger.error(e.message)
process.exit(EXIT_CODES.GENERAL_ERROR)
}
}
async function runMain() {
try {
if (redis.status === 'ready') {
if (config.maxProcessingTime) {
await watchdog(main, config.maxProcessingTime, () => {
logger.fatal('Max processing time reached')
process.exit(EXIT_CODES.MAX_TIME_REACHED)
})
} else {
await main()
}
}
} catch (e) {
logger.error(e)
}
setTimeout(runMain, config.pollingInterval)
}
async function main() {
try {
const jobs = Object.values(await redis.hgetall(config.mevJobsRedisKey)).map(JSON.parse)
const totalJobs = jobs.length
if (totalJobs === 0) {
logger.debug('Nothing to process')
return
}
const { baseFeePerGas: pendingBaseFee, number: pendingBlockNumber } = await getBlock(web3, 'pending')
const bestJob = pickBestJob(jobs, pendingBaseFee)
if (!bestJob) {
logger.info({ totalJobs, pendingBaseFee }, 'No suitable job was found, waiting for a lower gas price')
return
}
const jobLogger = logger.child({ eventTransactionHash: bestJob.transactionReference })
const maxProfit = await estimateProfit(
mevForeign.contract,
mevForeign.minGasPrice,
bestJob.executeData,
bestJob.value
)
if (maxProfit === '0') {
jobLogger.info(`No MEV opportunity found when testing with min gas price ${mevForeign.minGasPrice}, removing job`)
await redis.hdel(config.mevJobsRedisKey, bestJob.transactionReference)
return
}
jobLogger.info(`Estimated profit of ${maxProfit} when simulating with ${mevForeign.minGasPrice} gas price`)
bestJob.profit = maxProfit
if (new BigNumber(pendingBaseFee).gt(mevForeign.minGasPrice)) {
const profit = await estimateProfit(mevForeign.contract, pendingBaseFee, bestJob.executeData, bestJob.value)
if (profit === '0') {
jobLogger.info(
`No MEV opportunity found when testing with current gas price ${pendingBaseFee}, waiting for lower gas price`
)
bestJob.maxFeePerGas = pendingBaseFee
await redis.hset(config.mevJobsRedisKey, bestJob.transactionReference, JSON.stringify(bestJob))
return
}
jobLogger.info(`Estimated profit of ${profit} when simulating with ${pendingBaseFee} gas price`)
}
let gasLimit
if (typeof bestJob.extraGas === 'number') {
gasLimit = addExtraGas(bestJob.gasEstimate + bestJob.extraGas, 0, MAX_GAS_LIMIT)
} else {
gasLimit = addExtraGas(bestJob.gasEstimate, EXTRA_GAS_PERCENTAGE, MAX_GAS_LIMIT)
}
const nonce = await getNonce(web3, validatorAddress)
jobLogger.info(
{ nonce, fromBlock: pendingBlockNumber, toBlock: pendingBlockNumber + mevForeign.bundlesPerIteration - 1 },
'Sending MEV bundles'
)
const txHash = await sendTx({
data: bestJob.data,
nonce,
value: bestJob.value,
gasLimit,
privateKey: config.validatorPrivateKey,
to: bestJob.to,
chainId,
web3,
gasPriceOptions: {
maxFeePerGas: bestJob.maxFeePerGas,
maxPriorityFeePerGas: bestJob.maxPriorityFeePerGas
},
mevOptions: {
provider: flashbotsProvider,
fromBlock: pendingBlockNumber,
toBlock: pendingBlockNumber + mevForeign.bundlesPerIteration - 1,
logger
}
})
jobLogger.info({ txHash }, `Tx generated ${txHash} for event Tx ${bestJob.transactionReference}`)
await redis.hset(config.mevJobsRedisKey, bestJob.transactionReference, JSON.stringify(bestJob))
jobLogger.debug(`Finished processing msg`)
} catch (e) {
logger.error(e)
}
}
function pickBestJob(jobs, feePerGas) {
const feePerGasBN = new BigNumber(feePerGas)
let best = null
jobs.forEach(job => {
if (feePerGasBN.lt(job.maxFeePerGas) && (!best || new BigNumber(best.profit).lt(job.profit))) {
best = job
}
})
return best
}
initialize()

@ -1,251 +0,0 @@
require('../env')
const path = require('path')
const { redis } = require('./services/redisClient')
const logger = require('./services/logger')
const { getBlockNumber, getRequiredBlockConfirmations, getEvents } = require('./tx/web3')
const { checkHTTPS, watchdog, syncForEach } = require('./utils/utils')
const { processCollectedSignaturesBuilder } = require('./events/processAMBCollectedSignaturesMEV')
const {
EXIT_CODES,
BLOCK_NUMBER_PROGRESS_ITERATIONS_LIMIT,
MAX_HISTORY_BLOCK_TO_REPROCESS
} = require('./utils/constants')
if (process.argv.length < 3) {
logger.error('Please check the number of arguments, config file was not provided')
process.exit(EXIT_CODES.GENERAL_ERROR)
}
const config = require(path.join('../config/', process.argv[2]))
const processAMBCollectedSignaturesMEV = processCollectedSignaturesBuilder(config)
const {
web3,
bridgeContract,
eventContract,
startBlock,
pollingInterval,
chain,
reprocessingOptions,
blockPollingLimit
} = config.main
const lastBlockRedisKey = `${config.id}:lastProcessedBlock`
const lastReprocessedBlockRedisKey = `${config.id}:lastReprocessedBlock`
const seenEventsRedisKey = `${config.id}:seenEvents`
const mevJobsRedisKey = `${config.id}:mevJobs`
let lastProcessedBlock = Math.max(startBlock - 1, 0)
let lastReprocessedBlock
let lastSeenBlockNumber = 0
let sameBlockNumberCounter = 0
async function initialize() {
try {
const checkHttps = checkHTTPS(process.env.ORACLE_ALLOW_HTTP_FOR_RPC, logger)
web3.currentProvider.urls.forEach(checkHttps(chain))
await getLastProcessedBlock()
await getLastReprocessedBlock()
runMain({ sendToQueue: saveJobsToRedis })
} catch (e) {
logger.error(e)
process.exit(EXIT_CODES.GENERAL_ERROR)
}
}
async function runMain({ sendToQueue }) {
try {
if (redis.status === 'ready') {
if (config.maxProcessingTime) {
await watchdog(() => main({ sendToQueue }), config.maxProcessingTime, () => {
logger.fatal('Max processing time reached')
process.exit(EXIT_CODES.MAX_TIME_REACHED)
})
} else {
await main({ sendToQueue })
}
}
} catch (e) {
logger.error(e)
}
setTimeout(() => {
runMain({ sendToQueue })
}, pollingInterval)
}
async function saveJobsToRedis(jobs) {
return syncForEach(jobs, job => redis.hset(mevJobsRedisKey, job.transactionReference, JSON.stringify(job)))
}
async function getLastProcessedBlock() {
const result = await redis.get(lastBlockRedisKey)
logger.debug({ fromRedis: result, fromConfig: lastProcessedBlock }, 'Last Processed block obtained')
lastProcessedBlock = result ? parseInt(result, 10) : lastProcessedBlock
}
async function getLastReprocessedBlock() {
if (reprocessingOptions.enabled) {
const result = await redis.get(lastReprocessedBlockRedisKey)
if (result) {
lastReprocessedBlock = Math.max(parseInt(result, 10), lastProcessedBlock - MAX_HISTORY_BLOCK_TO_REPROCESS)
} else {
lastReprocessedBlock = lastProcessedBlock
}
logger.debug({ block: lastReprocessedBlock }, 'Last reprocessed block obtained')
} else {
// when reprocessing is being enabled not for the first time,
// we do not want to process blocks for which we didn't recorded seen events,
// instead, we want to start from the current block.
// Thus we should delete this reprocessing pointer once it is disabled.
await redis.del(lastReprocessedBlockRedisKey)
}
}
function updateLastProcessedBlock(lastBlockNumber) {
lastProcessedBlock = lastBlockNumber
return redis.set(lastBlockRedisKey, lastProcessedBlock)
}
function updateLastReprocessedBlock(lastBlockNumber) {
lastReprocessedBlock = lastBlockNumber
return redis.set(lastReprocessedBlockRedisKey, lastReprocessedBlock)
}
function processEvents(events) {
switch (config.id) {
case 'amb-collected-signatures-mev':
return processAMBCollectedSignaturesMEV(events)
default:
return []
}
}
const eventKey = e => `${e.transactionHash}-${e.logIndex}`
async function reprocessOldLogs(sendToQueue) {
const fromBlock = lastReprocessedBlock + 1
const toBlock = lastReprocessedBlock + reprocessingOptions.batchSize
const events = await getEvents({
contract: eventContract,
event: config.event,
fromBlock,
toBlock,
filter: config.eventFilter
})
const alreadySeenEvents = await getSeenEvents(fromBlock, toBlock)
const missingEvents = events.filter(e => !alreadySeenEvents[eventKey(e)])
if (missingEvents.length === 0) {
logger.debug('No missed events were found')
} else {
logger.info(`Found ${missingEvents.length} ${config.event} missed events`)
const job = await processEvents(missingEvents)
logger.info('Missed events transactions to send:', job.length)
if (job.length) {
await sendToQueue(job)
}
}
await updateLastReprocessedBlock(toBlock)
await deleteSeenEvents(0, toBlock)
}
async function getSeenEvents(fromBlock, toBlock) {
const keys = await redis.zrangebyscore(seenEventsRedisKey, fromBlock, toBlock)
const res = {}
keys.forEach(k => {
res[k] = true
})
return res
}
function deleteSeenEvents(fromBlock, toBlock) {
return redis.zremrangebyscore(seenEventsRedisKey, fromBlock, toBlock)
}
function addSeenEvents(events) {
return redis.zadd(seenEventsRedisKey, ...events.flatMap(e => [e.blockNumber, eventKey(e)]))
}
async function getLastBlockToProcess(web3, bridgeContract) {
const [lastBlockNumber, requiredBlockConfirmations] = await Promise.all([
getBlockNumber(web3),
getRequiredBlockConfirmations(bridgeContract)
])
if (lastBlockNumber < lastSeenBlockNumber) {
sameBlockNumberCounter = 0
logger.warn({ lastBlockNumber, lastSeenBlockNumber }, 'Received block number less than already seen block')
web3.currentProvider.switchToFallbackRPC()
} else if (lastBlockNumber === lastSeenBlockNumber) {
sameBlockNumberCounter++
if (sameBlockNumberCounter > 1) {
logger.info({ lastBlockNumber, sameBlockNumberCounter }, 'Received the same block number more than twice')
if (sameBlockNumberCounter >= BLOCK_NUMBER_PROGRESS_ITERATIONS_LIMIT) {
sameBlockNumberCounter = 0
logger.warn(
{ lastBlockNumber, n: BLOCK_NUMBER_PROGRESS_ITERATIONS_LIMIT },
'Received the same block number for too many times. Probably node is not synced anymore'
)
web3.currentProvider.switchToFallbackRPC()
}
}
} else {
sameBlockNumberCounter = 0
lastSeenBlockNumber = lastBlockNumber
}
return lastBlockNumber - requiredBlockConfirmations
}
async function main({ sendToQueue }) {
try {
const lastBlockToProcess = await getLastBlockToProcess(web3, bridgeContract)
if (reprocessingOptions.enabled) {
if (lastReprocessedBlock + reprocessingOptions.batchSize + reprocessingOptions.blockDelay < lastBlockToProcess) {
await reprocessOldLogs(sendToQueue)
return
}
}
if (lastBlockToProcess <= lastProcessedBlock) {
logger.debug('All blocks already processed')
return
}
const fromBlock = lastProcessedBlock + 1
const rangeEndBlock = blockPollingLimit ? fromBlock + blockPollingLimit : lastBlockToProcess
const toBlock = Math.min(lastBlockToProcess, rangeEndBlock)
const events = await getEvents({
contract: eventContract,
event: config.event,
fromBlock,
toBlock,
filter: config.eventFilter
})
logger.info(`Found ${events.length} ${config.event} events`)
if (events.length) {
const job = await processEvents(events)
logger.info('Transactions to send:', job.length)
if (job.length) {
await sendToQueue(job)
}
if (reprocessingOptions.enabled) {
await addSeenEvents(events)
}
}
logger.debug({ lastProcessedBlock: toBlock.toString() }, 'Updating last processed block')
await updateLastProcessedBlock(toBlock)
} catch (e) {
logger.error(e)
}
logger.debug('Finished')
}
initialize()

@ -9,8 +9,6 @@ const { sendTx } = require('./tx/sendTx')
const { getNonce, getChainId } = require('./tx/web3')
const {
addExtraGas,
applyMinGasFeeBump,
chooseGasPriceOptions,
checkHTTPS,
syncForEach,
waitForFunds,
@ -21,7 +19,7 @@ const {
isInsufficientBalanceError,
isNonceError
} = require('./utils/utils')
const { EXIT_CODES, EXTRA_GAS_PERCENTAGE, MAX_GAS_LIMIT, MIN_GAS_PRICE_BUMP_FACTOR } = require('./utils/constants')
const { EXIT_CODES, EXTRA_GAS_PERCENTAGE, MAX_GAS_LIMIT } = require('./utils/constants')
const { ORACLE_TX_REDUNDANCY } = process.env
@ -32,8 +30,8 @@ if (process.argv.length < 3) {
const config = require(path.join('../config/', process.argv[2]))
const { web3, web3Fallback, syncCheckInterval } = config.main
const web3Redundant = ORACLE_TX_REDUNDANCY === 'true' ? config.main.web3Redundant : web3
const { web3, web3Fallback } = config
const web3Redundant = ORACLE_TX_REDUNDANCY === 'true' ? config.web3Redundant : web3
const nonceKey = `${config.id}:nonce`
let chainId = 0
@ -42,10 +40,9 @@ async function initialize() {
try {
const checkHttps = checkHTTPS(process.env.ORACLE_ALLOW_HTTP_FOR_RPC, logger)
web3.currentProvider.urls.forEach(checkHttps(config.id))
web3.currentProvider.startSyncStateChecker(syncCheckInterval)
web3.currentProvider.subProvider.urls.forEach(checkHttps(config.id))
GasPrice.start(config.id, web3)
GasPrice.start(config.id)
chainId = await getChainId(web3)
connectQueue()
@ -58,6 +55,7 @@ async function initialize() {
function connectQueue() {
connectSenderToQueue({
queueName: config.queue,
oldQueueName: config.oldQueue,
resendInterval: config.resendInterval,
cb: options => {
if (config.maxProcessingTime) {
@ -123,7 +121,7 @@ async function main({ msg, ackMsg, nackMsg, channel, scheduleForRetry, scheduleT
const txArray = JSON.parse(msg.content)
logger.debug(`Msg received with ${txArray.length} Tx to send`)
const gasPriceOptions = GasPrice.gasPriceOptions()
const gasPrice = GasPrice.getPrice().toString(10)
let nonce
let insufficientFunds = false
@ -149,7 +147,6 @@ async function main({ msg, ackMsg, nackMsg, channel, scheduleForRetry, scheduleT
}
try {
const newGasPriceOptions = chooseGasPriceOptions(gasPriceOptions, job.gasPriceOptions)
if (isResend) {
const tx = await web3Fallback.eth.getTransaction(job.txHash)
@ -162,26 +159,24 @@ async function main({ msg, ackMsg, nackMsg, channel, scheduleForRetry, scheduleT
nonce = await readNonce(true)
}
const oldGasPrice = JSON.stringify(job.gasPriceOptions)
const newGasPrice = JSON.stringify(newGasPriceOptions)
logger.info(`Transaction ${job.txHash} was not mined, updating gasPrice: ${oldGasPrice} -> ${newGasPrice}`)
logger.info(`Transaction ${job.txHash} was not mined, updating gasPrice: ${job.gasPrice} -> ${gasPrice}`)
}
logger.info(`Sending transaction with nonce ${nonce}`)
const txHash = await sendTx({
data: job.data,
nonce,
value: '0',
gasPrice,
amount: '0',
gasLimit,
privateKey: config.validatorPrivateKey,
to: job.to,
chainId,
web3: web3Redundant,
gasPriceOptions: newGasPriceOptions
web3: web3Redundant
})
const resendJob = {
...job,
txHash,
gasPriceOptions: newGasPriceOptions
gasPrice
}
resendJobs.push(resendJob)
@ -199,8 +194,8 @@ async function main({ msg, ackMsg, nackMsg, channel, scheduleForRetry, scheduleT
if (isGasPriceError(e)) {
logger.info('Replacement transaction underpriced, forcing gas price update')
GasPrice.start(config.id, web3)
failedTx.push(applyMinGasFeeBump(job, MIN_GAS_PRICE_BUMP_FACTOR))
GasPrice.start(config.id)
failedTx.push(job)
} else if (isResend || isSameTransactionError(e)) {
resendJobs.push(job)
} else {
@ -213,7 +208,7 @@ async function main({ msg, ackMsg, nackMsg, channel, scheduleForRetry, scheduleT
if (isInsufficientBalanceError(e)) {
insufficientFunds = true
const currentBalance = await web3.eth.getBalance(config.validatorAddress)
minimumBalance = gasLimit.multipliedBy(gasPriceOptions.gasPrice || gasPriceOptions.maxFeePerGas)
minimumBalance = gasLimit.multipliedBy(gasPrice)
logger.error(
`Insufficient funds: ${currentBalance}. Stop processing messages until the balance is at least ${minimumBalance}.`
)

@ -1,16 +1,11 @@
const fetch = require('node-fetch')
const promiseRetry = require('promise-retry')
const { utils } = require('web3')
const { FALLBACK_RPC_URL_SWITCH_TIMEOUT } = require('../utils/constants')
const { onInjected } = require('./injectedLogger')
const { ORACLE_JSONRPC_ERROR_CODES } = process.env
// From EIP-1474 and Infura documentation
const JSONRPC_ERROR_CODES = ORACLE_JSONRPC_ERROR_CODES
? ORACLE_JSONRPC_ERROR_CODES.split(',').map(s => parseInt(s, 10))
: [-32603, -32002, -32005]
const JSONRPC_ERROR_CODES = [-32603, -32002, -32005]
const defaultOptions = {
name: 'main',
@ -40,61 +35,12 @@ function HttpListProvider(urls, options = {}) {
this.options = { ...defaultOptions, ...options }
this.currentIndex = 0
this.lastTimeUsedPrimary = 0
this.latestBlock = 0
this.syncStateCheckerIntervalId = 0
onInjected(logger => {
this.logger = logger.child({ module: `HttpListProvider:${this.options.name}` })
})
}
HttpListProvider.prototype.startSyncStateChecker = function(syncCheckInterval) {
if (this.urls.length > 1 && syncCheckInterval > 0 && this.syncStateCheckerIntervalId === 0) {
this.syncStateCheckerIntervalId = setInterval(this.checkLatestBlock.bind(this), syncCheckInterval)
}
}
HttpListProvider.prototype.checkLatestBlock = function() {
const payload = { jsonrpc: '2.0', id: 1, method: 'eth_blockNumber', params: [] }
this.send(payload, (error, result) => {
if (error) {
this.logger.warn({ oldBlock: this.latestBlock }, 'Failed to request latest block from all RPC urls')
} else if (result.error) {
this.logger.warn(
{ oldBlock: this.latestBlock, error: result.error.message },
'Failed to make eth_blockNumber request due to unknown error, switching to fallback RPC'
)
this.switchToFallbackRPC()
} else {
const blockNumber = utils.hexToNumber(result.result)
if (blockNumber > this.latestBlock) {
this.logger.debug({ oldBlock: this.latestBlock, newBlock: blockNumber }, 'Updating latest block number')
this.latestBlock = blockNumber
} else {
this.logger.warn(
{ oldBlock: this.latestBlock, newBlock: blockNumber },
'Latest block on the node was not updated since last request, switching to fallback RPC'
)
this.switchToFallbackRPC()
}
}
})
}
HttpListProvider.prototype.switchToFallbackRPC = function(index) {
const prevIndex = this.currentIndex
const newIndex = index || (prevIndex + 1) % this.urls.length
if (this.urls.length < 2 || prevIndex === newIndex) {
return
}
this.logger.info(
{ index: newIndex, oldURL: this.urls[prevIndex], newURL: this.urls[newIndex] },
'Switching to fallback JSON-RPC URL'
)
this.currentIndex = newIndex
}
HttpListProvider.prototype.send = async function send(payload, callback) {
// if fallback URL is being used for too long, switch back to the primary URL
if (this.currentIndex > 0 && Date.now() - this.lastTimeUsedPrimary > FALLBACK_RPC_URL_SWITCH_TIMEOUT) {
@ -116,7 +62,11 @@ HttpListProvider.prototype.send = async function send(payload, callback) {
// if some of URLs failed to respond, current URL index is updated to the first URL that responded
if (currentIndex !== index) {
this.switchToFallbackRPC(index)
this.logger.info(
{ index, oldURL: this.urls[currentIndex], newURL: this.urls[index] },
'Switching to fallback JSON-RPC URL'
)
this.currentIndex = index
}
callback(null, result)
} catch (e) {

@ -1,13 +1,20 @@
const { hexToNumber, isHexStrict } = require('web3').utils
const { onInjected } = require('./injectedLogger')
function SafeEthLogsProvider(provider) {
const oldSend = provider.send.bind(provider)
const newSend = function(payload, callback) {
this.subProvider = provider
onInjected(logger => {
this.logger = logger.child({ module: 'SafeEthLogsProvider' })
})
}
SafeEthLogsProvider.prototype.send = function send(payload, callback) {
if (payload.method === 'eth_getLogs' && isHexStrict(payload.params[0].toBlock)) {
this.logger.debug('Modifying eth_getLogs request to include batch eth_blockNumber request')
const newPayload = [payload, { jsonrpc: '2.0', id: payload.id + 1, method: 'eth_blockNumber', params: [] }]
oldSend(newPayload, (err, res) => {
this.subProvider.send(newPayload, (err, res) => {
if (err) {
callback(err, null)
} else {
@ -25,12 +32,9 @@ function SafeEthLogsProvider(provider) {
}
})
} else {
oldSend(payload, callback)
this.subProvider.send(payload, callback)
}
}
provider.send = newSend.bind(provider)
return provider
}
module.exports = {
SafeEthLogsProvider

@ -40,9 +40,23 @@ function connectWatcherToQueue({ queueName, cb }) {
cb({ sendToQueue, channel: channelWrapper })
}
function connectSenderToQueue({ queueName, cb, resendInterval }) {
function connectSenderToQueue({ queueName, oldQueueName, cb, resendInterval }) {
const deadLetterExchange = `${queueName}-retry`
async function resendMessagesToNewQueue(channel) {
logger.info(`Trying to check messages in the old non-priority queue ${queueName}`)
while (true) {
const msg = await channel.get(oldQueueName)
if (msg === false) {
logger.info(`No messages in the old queue ${oldQueueName} left`)
break
}
logger.debug(`Message in the old queue ${oldQueueName} was found, redirecting it to the new queue ${queueName}`)
await channel.sendToQueue(queueName, msg.content, { persistent: true, priority: SENDER_QUEUE_SEND_PRIORITY })
await channel.ack(msg)
}
}
const channelWrapper = connection.createChannel({
json: true
})
@ -50,6 +64,7 @@ function connectSenderToQueue({ queueName, cb, resendInterval }) {
channelWrapper.addSetup(async channel => {
await channel.assertExchange(deadLetterExchange, 'fanout', { durable: true })
await channel.assertQueue(queueName, { durable: true, maxPriority: SENDER_QUEUE_MAX_PRIORITY })
await channel.assertQueue(oldQueueName, { durable: true }).then(() => resendMessagesToNewQueue(channel))
await channel.bindQueue(queueName, deadLetterExchange)
await channel.prefetch(1)
await channel.consume(queueName, msg =>

@ -20,21 +20,21 @@ const {
COMMON_HOME_GAS_PRICE_FACTOR
} = process.env
let cachedGasPriceOptions = null
let cachedGasPrice = null
let fetchGasPriceInterval = null
const fetchGasPrice = async (speedType, factor, web3, bridgeContract, gasPriceSupplierUrl) => {
const fetchGasPrice = async (speedType, factor, bridgeContract, gasPriceSupplierUrl) => {
const contractOptions = { logger }
const supplierOptions = { speedType, factor, limits: GAS_PRICE_BOUNDARIES, logger }
cachedGasPriceOptions =
(await gasPriceFromSupplier(web3, gasPriceSupplierUrl, supplierOptions)) ||
cachedGasPrice =
(await gasPriceFromSupplier(gasPriceSupplierUrl, supplierOptions)) ||
(await gasPriceFromContract(bridgeContract, contractOptions)) ||
cachedGasPriceOptions
return cachedGasPriceOptions
cachedGasPrice
return cachedGasPrice
}
async function start(chainId, web3, fetchOnce) {
async function start(chainId, fetchOnce) {
clearInterval(fetchGasPriceInterval)
let contract = null
@ -49,7 +49,7 @@ async function start(chainId, web3, fetchOnce) {
updateInterval = ORACLE_HOME_GAS_PRICE_UPDATE_INTERVAL || DEFAULT_UPDATE_INTERVAL
factor = Number(COMMON_HOME_GAS_PRICE_FACTOR) || DEFAULT_GAS_PRICE_FACTOR
cachedGasPriceOptions = { gasPrice: COMMON_HOME_GAS_PRICE_FALLBACK }
cachedGasPrice = COMMON_HOME_GAS_PRICE_FALLBACK
} else if (chainId === 'foreign') {
contract = foreign.bridgeContract
gasPriceSupplierUrl = COMMON_FOREIGN_GAS_PRICE_SUPPLIER_URL
@ -57,7 +57,7 @@ async function start(chainId, web3, fetchOnce) {
updateInterval = ORACLE_FOREIGN_GAS_PRICE_UPDATE_INTERVAL || DEFAULT_UPDATE_INTERVAL
factor = Number(COMMON_FOREIGN_GAS_PRICE_FACTOR) || DEFAULT_GAS_PRICE_FACTOR
cachedGasPriceOptions = { gasPrice: COMMON_FOREIGN_GAS_PRICE_FALLBACK }
cachedGasPrice = COMMON_FOREIGN_GAS_PRICE_FALLBACK
} else {
throw new Error(`Unrecognized chainId '${chainId}'`)
}
@ -67,21 +67,21 @@ async function start(chainId, web3, fetchOnce) {
}
if (fetchOnce) {
await fetchGasPrice(speedType, factor, web3, contract, gasPriceSupplierUrl)
await fetchGasPrice(speedType, factor, contract, gasPriceSupplierUrl)
} else {
fetchGasPriceInterval = await setIntervalAndRun(
() => fetchGasPrice(speedType, factor, web3, contract, gasPriceSupplierUrl),
() => fetchGasPrice(speedType, factor, contract, gasPriceSupplierUrl),
updateInterval
)
}
}
function gasPriceOptions() {
return cachedGasPriceOptions
function getPrice() {
return cachedGasPrice
}
module.exports = {
start,
gasPriceOptions,
getPrice,
fetchGasPrice
}

@ -1,6 +1,4 @@
const Web3 = require('web3')
const ethers = require('ethers')
const flashbots = require('@flashbots/ethers-provider-bundle')
const { HttpListProvider } = require('./HttpListProvider')
const { SafeEthLogsProvider } = require('./SafeEthLogsProvider')
const { RedundantHttpListProvider } = require('./RedundantHttpListProvider')
@ -11,8 +9,6 @@ const {
COMMON_FOREIGN_RPC_URL,
ORACLE_SIDE_RPC_URL,
ORACLE_FOREIGN_ARCHIVE_RPC_URL,
ORACLE_MEV_FOREIGN_FLASHBOTS_RPC_URL,
ORACLE_MEV_FOREIGN_FLASHBOTS_AUTH_SIGNING_KEY,
ORACLE_RPC_REQUEST_TIMEOUT,
ORACLE_HOME_RPC_POLLING_INTERVAL,
ORACLE_FOREIGN_RPC_POLLING_INTERVAL
@ -42,10 +38,10 @@ const foreignOptions = {
retry: RETRY_CONFIG
}
const homeProvider = SafeEthLogsProvider(new HttpListProvider(homeUrls, homeOptions))
const homeProvider = new SafeEthLogsProvider(new HttpListProvider(homeUrls, homeOptions))
const web3Home = new Web3(homeProvider)
const foreignProvider = SafeEthLogsProvider(new HttpListProvider(foreignUrls, foreignOptions))
const foreignProvider = new SafeEthLogsProvider(new HttpListProvider(foreignUrls, foreignOptions))
const web3Foreign = new Web3(foreignProvider)
let web3ForeignArchive = null
@ -98,15 +94,6 @@ if (foreignUrls.length > 1) {
web3ForeignRedundant = new Web3(redundantProvider)
}
let getFlashbotsProvider
if (ORACLE_MEV_FOREIGN_FLASHBOTS_RPC_URL) {
const provider = new ethers.providers.JsonRpcProvider(foreignUrls[0])
const authSigner = new ethers.Wallet(ORACLE_MEV_FOREIGN_FLASHBOTS_AUTH_SIGNING_KEY, provider)
getFlashbotsProvider = chainId =>
flashbots.FlashbotsBundleProvider.create(provider, authSigner, ORACLE_MEV_FOREIGN_FLASHBOTS_RPC_URL, chainId)
}
module.exports = {
web3Home,
web3Foreign,
@ -115,6 +102,5 @@ module.exports = {
web3HomeRedundant,
web3ForeignRedundant,
web3HomeFallback,
web3ForeignFallback,
getFlashbotsProvider
web3ForeignFallback
}

@ -1,20 +1,19 @@
async function sendTx(opts) {
const { privateKey, data, nonce, gasPrice, gasPriceOptions, value, gasLimit, to, chainId, web3, mevOptions } = opts
const gasOpts = gasPriceOptions || { gasPrice }
const { toWei } = require('web3').utils
async function sendTx({ privateKey, data, nonce, gasPrice, amount, gasLimit, to, chainId, web3 }) {
const serializedTx = await web3.eth.accounts.signTransaction(
{
nonce: Number(nonce),
chainId,
to,
data,
value,
gas: gasLimit,
...gasOpts
value: toWei(amount),
gasPrice,
gas: gasLimit
},
privateKey
)
if (!mevOptions) {
return new Promise((res, rej) =>
web3.eth
.sendSignedTransaction(serializedTx.rawTransaction)
@ -23,18 +22,6 @@ async function sendTx(opts) {
)
}
mevOptions.logger.debug(
{ rawTx: serializedTx.rawTransaction, txHash: serializedTx.transactionHash },
'Signed MEV helper transaction'
)
for (let blockNumber = mevOptions.fromBlock; blockNumber <= mevOptions.toBlock; blockNumber++) {
mevOptions.logger.debug({ txHash: serializedTx.transactionHash, blockNumber }, 'Sending MEV bundle transaction')
await mevOptions.provider.sendRawBundle([serializedTx.rawTransaction], blockNumber)
}
return Promise.resolve(serializedTx.transactionHash)
}
module.exports = {
sendTx
}

@ -87,7 +87,7 @@ async function getEvents({ contract, event, fromBlock, toBlock, filter }) {
)
const pastEvents = await contract.getPastEvents(event, { fromBlock, toBlock, filter })
logger.debug({ contractAddress, event, count: pastEvents.length }, 'Past events obtained')
return pastEvents.sort((a, b) => a.blockNumber - b.blockNumber || a.transactionIndex - b.transactionIndex)
return pastEvents
} catch (e) {
logger.error(e.message)
throw new Error(`${event} events cannot be obtained`)

@ -1,11 +1,10 @@
module.exports = {
EXTRA_GAS_PERCENTAGE: 4,
EXTRA_GAS_ABSOLUTE: 250000,
EXTRA_GAS_ABSOLUTE: 200000,
AMB_AFFIRMATION_REQUEST_EXTRA_GAS_ESTIMATOR: len => Math.floor(0.0035 * len ** 2 + 40 * len),
MIN_AMB_HEADER_LENGTH: 32 + 20 + 20 + 4 + 2 + 1 + 2,
MAX_GAS_LIMIT: 10000000,
MAX_CONCURRENT_EVENTS: 50,
MAX_HISTORY_BLOCK_TO_REPROCESS: 10000,
RETRY_CONFIG: {
retries: 20,
factor: 1.4,
@ -24,22 +23,9 @@ module.exports = {
MIN: 1,
MAX: 1000
},
MIN_GAS_PRICE_BUMP_FACTOR: 0.1,
DEFAULT_TRANSACTION_RESEND_INTERVAL: 20 * 60 * 1000,
FALLBACK_RPC_URL_SWITCH_TIMEOUT: 60 * 60 * 1000,
SENDER_QUEUE_MAX_PRIORITY: 10,
SENDER_QUEUE_SEND_PRIORITY: 5,
SENDER_QUEUE_CHECK_STATUS_PRIORITY: 1,
ASYNC_CALL_ERRORS: {
// requested transaction/block/receipt does not exist
NOT_FOUND: '0x0000000000000000000000000000000000000000000000000000000000000000',
// requested custom block does not exist yet or its timestamp is greater than the home block timestamp
BLOCK_IS_IN_THE_FUTURE: '0x0000000000000000000000000000000000000000000000000000000000000001',
// eth_call has reverted or finished with OOG error
REVERT: '0x0000000000000000000000000000000000000000000000000000000000000002',
// evaluated output length exceeds allowed length of 64 KB
RESULT_IS_TOO_LONG: '0x0000000000000000000000000000000000000000000000000000000000000003'
},
MAX_ASYNC_CALL_RESULT_LENGTH: 64 * 1024,
ASYNC_ETH_CALL_MAX_GAS_LIMIT: 100000000
SENDER_QUEUE_CHECK_STATUS_PRIORITY: 1
}

@ -1,43 +0,0 @@
const MEV_HELPER_ABI = [
{
constant: false,
inputs: [
{
name: '_data',
type: 'bytes'
}
],
name: 'execute',
outputs: [],
payable: false,
stateMutability: 'nonpayable',
type: 'function'
},
{
constant: false,
inputs: [
{
name: '_gasPrice',
type: 'uint256'
},
{
name: '_data',
type: 'bytes'
}
],
name: 'estimateProfit',
outputs: [
{
name: '',
type: 'uint256'
}
],
payable: true,
stateMutability: 'nonpayable',
type: 'function'
}
]
module.exports = {
MEV_HELPER_ABI
}

@ -2,9 +2,6 @@ const fs = require('fs')
const BigNumber = require('bignumber.js')
const promiseRetry = require('promise-retry')
const Web3 = require('web3')
const { GAS_PRICE_BOUNDARIES } = require('./constants')
const { toBN, toWei } = Web3.utils
const retrySequence = [1, 2, 3, 5, 8, 13, 21, 34, 55, 60]
@ -37,8 +34,8 @@ const promiseRetryForever = f => promiseRetry(f, { forever: true, factor: 1 })
async function waitForFunds(web3, address, minimumBalance, cb, logger) {
promiseRetryForever(async retry => {
logger.debug('Getting balance of validator account')
const newBalance = toBN(await web3.eth.getBalance(address))
if (newBalance.gte(toBN(minimumBalance.toString(10)))) {
const newBalance = web3.utils.toBN(await web3.eth.getBalance(address))
if (newBalance.gte(web3.utils.toBN(minimumBalance.toString(10)))) {
logger.debug({ balance: newBalance, minimumBalance }, 'Validator has minimum necessary balance')
cb(newBalance)
} else {
@ -67,48 +64,6 @@ function addExtraGas(gas, extraPercentage, maxGasLimit = Infinity) {
return BigNumber.min(maxGasLimit, gasWithExtra)
}
function applyMinGasFeeBump(job, bumpFactor = 0.1) {
if (!job.gasPriceOptions) {
return job
}
const { gasPrice, maxFeePerGas, maxPriorityFeePerGas } = job.gasPriceOptions
const maxGasPrice = toWei(GAS_PRICE_BOUNDARIES.MAX.toString(), 'gwei')
if (gasPrice) {
return {
...job,
gasPriceOptions: {
gasPrice: addExtraGas(gasPrice, bumpFactor, maxGasPrice).toString()
}
}
}
if (maxFeePerGas && maxPriorityFeePerGas) {
return {
...job,
gasPriceOptions: {
maxFeePerGas: addExtraGas(maxFeePerGas, bumpFactor, maxGasPrice).toString(),
maxPriorityFeePerGas: addExtraGas(maxPriorityFeePerGas, bumpFactor, maxGasPrice).toString()
}
}
}
return job
}
function chooseGasPriceOptions(a, b) {
if (!a) {
return b
}
if (a && b && a.gasPrice && b.gasPrice) {
return { gasPrice: BigNumber.max(a.gasPrice, b.gasPrice).toString() }
}
if (a && b && a.maxFeePerGas && b.maxFeePerGas && a.maxPriorityFeePerGas && b.maxPriorityFeePerGas) {
return {
maxFeePerGas: BigNumber.max(a.maxFeePerGas, b.maxFeePerGas).toString(),
maxPriorityFeePerGas: BigNumber.max(a.maxPriorityFeePerGas, b.maxPriorityFeePerGas).toString()
}
}
return a
}
async function setIntervalAndRun(f, interval) {
const handler = setInterval(f, interval)
await f()
@ -151,11 +106,7 @@ function isGasPriceError(e) {
function isSameTransactionError(e) {
const message = e.message.toLowerCase()
return (
message.includes('transaction with the same hash was already imported') ||
message.includes('already known') ||
message.includes('alreadyknown')
)
return message.includes('transaction with the same hash was already imported') || message.includes('already known')
}
function isInsufficientBalanceError(e) {
@ -168,21 +119,7 @@ function isNonceError(e) {
return (
message.includes('transaction nonce is too low') ||
message.includes('nonce too low') ||
message.includes('transaction with same nonce in the queue') ||
message.includes('oldnonce') ||
message.includes(`the tx doesn't have the correct nonce`)
)
}
function isRevertError(e) {
const message = e.message.toLowerCase()
// OE and NE returns "VM execution error"/"Transaction execution error"
// Geth returns "out of gas"/"intrinsic gas too low"/"execution reverted"
return (
message.includes('execution error') ||
message.includes('intrinsic gas too low') ||
message.includes('out of gas') ||
message.includes('execution reverted')
message.includes('transaction with same nonce in the queue')
)
}
@ -229,8 +166,6 @@ module.exports = {
waitForFunds,
waitForUnsuspend,
addExtraGas,
chooseGasPriceOptions,
applyMinGasFeeBump,
setIntervalAndRun,
watchdog,
add0xPrefix,
@ -239,7 +174,6 @@ module.exports = {
isSameTransactionError,
isInsufficientBalanceError,
isNonceError,
isRevertError,
getRetrySequence,
promiseAny,
readAccessListFile,

@ -6,7 +6,7 @@ const logger = require('./services/logger')
const { getShutdownFlag } = require('./services/shutdownState')
const { getBlockNumber, getRequiredBlockConfirmations, getEvents } = require('./tx/web3')
const { checkHTTPS, watchdog } = require('./utils/utils')
const { EXIT_CODES, MAX_HISTORY_BLOCK_TO_REPROCESS } = require('./utils/constants')
const { EXIT_CODES } = require('./utils/constants')
if (process.argv.length < 3) {
logger.error('Please check the number of arguments, config file was not provided')
@ -26,33 +26,17 @@ const processAMBInformationRequests = require('./events/processAMBInformationReq
const { getTokensState } = require('./utils/tokenState')
const {
web3,
bridgeContract,
eventContract,
startBlock,
pollingInterval,
chain,
reprocessingOptions,
blockPollingLimit,
syncCheckInterval
} = config.main
const { web3, bridgeContract, eventContract, startBlock, pollingInterval, chain } = config.main
const lastBlockRedisKey = `${config.id}:lastProcessedBlock`
const lastReprocessedBlockRedisKey = `${config.id}:lastReprocessedBlock`
const seenEventsRedisKey = `${config.id}:seenEvents`
let lastProcessedBlock = Math.max(startBlock - 1, 0)
let lastReprocessedBlock
async function initialize() {
try {
const checkHttps = checkHTTPS(process.env.ORACLE_ALLOW_HTTP_FOR_RPC, logger)
web3.currentProvider.urls.forEach(checkHttps(chain))
web3.currentProvider.startSyncStateChecker(syncCheckInterval)
web3.currentProvider.subProvider.urls.forEach(checkHttps(chain))
await getLastProcessedBlock()
await getLastReprocessedBlock()
await checkConditions()
connectWatcherToQueue({
queueName: config.queue,
cb: runMain
@ -90,34 +74,11 @@ async function getLastProcessedBlock() {
lastProcessedBlock = result ? parseInt(result, 10) : lastProcessedBlock
}
async function getLastReprocessedBlock() {
if (reprocessingOptions.enabled) {
const result = await redis.get(lastReprocessedBlockRedisKey)
if (result) {
lastReprocessedBlock = Math.max(parseInt(result, 10), lastProcessedBlock - MAX_HISTORY_BLOCK_TO_REPROCESS)
} else {
lastReprocessedBlock = lastProcessedBlock
}
logger.debug({ block: lastReprocessedBlock }, 'Last reprocessed block obtained')
} else {
// when reprocessing is being enabled not for the first time,
// we do not want to process blocks for which we didn't recorded seen events,
// instead, we want to start from the current block.
// Thus we should delete this reprocessing pointer once it is disabled.
await redis.del(lastReprocessedBlockRedisKey)
}
}
function updateLastProcessedBlock(lastBlockNumber) {
lastProcessedBlock = lastBlockNumber
return redis.set(lastBlockRedisKey, lastProcessedBlock)
}
function updateLastReprocessedBlock(lastBlockNumber) {
lastReprocessedBlock = lastBlockNumber
return redis.set(lastReprocessedBlockRedisKey, lastReprocessedBlock)
}
function processEvents(events) {
switch (config.id) {
case 'erc-native-signature-request':
@ -151,71 +112,6 @@ async function checkConditions() {
}
}
const eventKey = e => `${e.transactionHash}-${e.logIndex}`
async function reprocessOldLogs(sendToQueue) {
const fromBlock = lastReprocessedBlock + 1
let toBlock = lastReprocessedBlock + reprocessingOptions.batchSize
const events = await getEvents({
contract: eventContract,
event: config.event,
fromBlock,
toBlock,
filter: config.eventFilter
})
const alreadySeenEvents = await getSeenEvents(fromBlock, toBlock)
const missingEvents = events.filter(e => !alreadySeenEvents[eventKey(e)])
if (missingEvents.length === 0) {
logger.debug('No missed events were found')
} else {
logger.info(`Found ${missingEvents.length} ${config.event} missed events`)
let job
if (config.id === 'amb-information-request') {
// obtain block number and events from the earliest block
const batchBlockNumber = missingEvents[0].blockNumber
const batchEvents = missingEvents.filter(event => event.blockNumber === batchBlockNumber)
// if there are some other events in the later blocks,
// adjust lastReprocessedBlock so that these events will be processed again on the next iteration
if (batchEvents.length < missingEvents.length) {
// pick event outside from the batch
toBlock = missingEvents[batchEvents.length].blockNumber - 1
}
job = await processAMBInformationRequests(batchEvents)
if (job === null) {
return
}
} else {
job = await processEvents(missingEvents)
}
logger.info('Missed events transactions to send:', job.length)
if (job.length) {
await sendToQueue(job)
}
}
await updateLastReprocessedBlock(toBlock)
await deleteSeenEvents(0, toBlock)
}
async function getSeenEvents(fromBlock, toBlock) {
const keys = await redis.zrangebyscore(seenEventsRedisKey, fromBlock, toBlock)
const res = {}
keys.forEach(k => {
res[k] = true
})
return res
}
function deleteSeenEvents(fromBlock, toBlock) {
return redis.zremrangebyscore(seenEventsRedisKey, fromBlock, toBlock)
}
function addSeenEvents(events) {
return redis.zadd(seenEventsRedisKey, ...events.flatMap(e => [e.blockNumber, eventKey(e)]))
}
async function getLastBlockToProcess(web3, bridgeContract) {
const [lastBlockNumber, requiredBlockConfirmations] = await Promise.all([
getBlockNumber(web3),
@ -236,14 +132,9 @@ async function main({ sendToQueue }) {
logger.info(`Oracle watcher was unsuspended.`)
}
const lastBlockToProcess = await getLastBlockToProcess(web3, bridgeContract)
await checkConditions()
if (reprocessingOptions.enabled) {
if (lastReprocessedBlock + reprocessingOptions.batchSize + reprocessingOptions.blockDelay < lastBlockToProcess) {
await reprocessOldLogs(sendToQueue)
return
}
}
const lastBlockToProcess = await getLastBlockToProcess(web3, bridgeContract)
if (lastBlockToProcess <= lastProcessedBlock) {
logger.debug('All blocks already processed')
@ -251,16 +142,16 @@ async function main({ sendToQueue }) {
}
const fromBlock = lastProcessedBlock + 1
const rangeEndBlock = blockPollingLimit ? fromBlock + blockPollingLimit : lastBlockToProcess
const rangeEndBlock = config.blockPollingLimit ? fromBlock + config.blockPollingLimit : lastBlockToProcess
let toBlock = Math.min(lastBlockToProcess, rangeEndBlock)
let events = await getEvents({
const events = (await getEvents({
contract: eventContract,
event: config.event,
fromBlock,
toBlock,
filter: config.eventFilter
})
})).sort((a, b) => a.blockNumber - b.blockNumber)
logger.info(`Found ${events.length} ${config.event} events`)
if (events.length) {
@ -277,10 +168,9 @@ async function main({ sendToQueue }) {
if (batchEvents.length < events.length) {
// pick event outside from the batch
toBlock = events[batchEvents.length].blockNumber - 1
events = batchEvents
}
job = await processAMBInformationRequests(events)
job = await processAMBInformationRequests(batchEvents)
if (job === null) {
return
}
@ -292,9 +182,6 @@ async function main({ sendToQueue }) {
if (job.length) {
await sendToQueue(job)
}
if (reprocessingOptions.enabled) {
await addSeenEvents(events)
}
}
logger.debug({ lastProcessedBlock: toBlock.toString() }, 'Updating last processed block')

@ -71,10 +71,10 @@ describe('gasPrice', () => {
await gasPrice.start('home')
// when
await gasPrice.fetchGasPrice('standard', 1, null, null, null)
await gasPrice.fetchGasPrice('standard', 1, null, null)
// then
expect(gasPrice.gasPriceOptions()).to.eql({ gasPrice: '101000000000' })
expect(gasPrice.getPrice()).to.equal('101000000000')
})
it('should fetch gas from supplier', async () => {
@ -82,10 +82,10 @@ describe('gasPrice', () => {
await gasPrice.start('home')
// when
await gasPrice.fetchGasPrice('standard', 1, null, null, 'url')
await gasPrice.fetchGasPrice('standard', 1, null, 'url')
// then
expect(gasPrice.gasPriceOptions()).to.eql({ gasPrice: '103000000000' })
expect(gasPrice.getPrice().toString()).to.equal('103000000000')
})
it('should fetch gas from contract', async () => {
@ -101,10 +101,10 @@ describe('gasPrice', () => {
}
// when
await gasPrice.fetchGasPrice('standard', 1, null, bridgeContractMock, null)
await gasPrice.fetchGasPrice('standard', 1, bridgeContractMock, null)
// then
expect(gasPrice.gasPriceOptions()).to.eql({ gasPrice: '102000000000' })
expect(gasPrice.getPrice().toString()).to.equal('102000000000')
})
it('should fetch the gas price from the oracle first', async () => {
@ -120,10 +120,10 @@ describe('gasPrice', () => {
}
// when
await gasPrice.fetchGasPrice('standard', 1, null, bridgeContractMock, 'url')
await gasPrice.fetchGasPrice('standard', 1, bridgeContractMock, 'url')
// then
expect(gasPrice.gasPriceOptions()).to.eql({ gasPrice: '103000000000' })
expect(gasPrice.getPrice().toString()).to.equal('103000000000')
})
it('log error using the logger', async () => {
@ -131,7 +131,7 @@ describe('gasPrice', () => {
await gasPrice.start('home')
// when
await gasPrice.fetchGasPrice('standard', 1, null, null, null)
await gasPrice.fetchGasPrice('standard', 1, null, null)
// then
expect(fakeLogger.warn.calledOnce).to.equal(true) // one warning

@ -3,13 +3,7 @@ const chai = require('chai')
const chaiAsPromised = require('chai-as-promised')
const BigNumber = require('bignumber.js')
const proxyquire = require('proxyquire')
const {
addExtraGas,
applyMinGasFeeBump,
chooseGasPriceOptions,
syncForEach,
promiseAny
} = require('../src/utils/utils')
const { addExtraGas, syncForEach, promiseAny } = require('../src/utils/utils')
chai.use(chaiAsPromised)
chai.should()
@ -179,43 +173,4 @@ describe('utils', () => {
await promiseAny(array.map(f)).should.be.rejected
})
})
describe('applyMinGasFeeBump', () => {
it('should bump pre-eip1559 fee', () => {
const job = { gasPriceOptions: { gasPrice: '100000000000' } }
const newJob = applyMinGasFeeBump(job)
expect(newJob.gasPriceOptions.gasPrice).to.be.equal('110000000000')
})
it('should bump eip1559 fee', () => {
const job = { gasPriceOptions: { maxFeePerGas: '100000000000', maxPriorityFeePerGas: '20000000000' } }
const newJob = applyMinGasFeeBump(job)
expect(newJob.gasPriceOptions.maxFeePerGas).to.be.equal('110000000000')
expect(newJob.gasPriceOptions.maxPriorityFeePerGas).to.be.equal('22000000000')
})
})
describe('chooseGasPriceOptions', () => {
it('should choose max pre-eip1559 fee', () => {
const opts1 = { gasPrice: '100000000000' }
const opts2 = { gasPrice: '101000000000' }
expect(chooseGasPriceOptions(opts1, opts2).gasPrice).to.be.equal('101000000000')
expect(chooseGasPriceOptions(opts2, opts1).gasPrice).to.be.equal('101000000000')
expect(chooseGasPriceOptions(opts2, undefined).gasPrice).to.be.equal('101000000000')
expect(chooseGasPriceOptions(undefined, opts2).gasPrice).to.be.equal('101000000000')
})
it('should choose max eip1559 fee', () => {
const opts1 = { maxFeePerGas: '100000000000', maxPriorityFeePerGas: '21000000000' }
const opts2 = { maxFeePerGas: '101000000000', maxPriorityFeePerGas: '20000000000' }
expect(chooseGasPriceOptions(opts1, opts2).maxFeePerGas).to.be.equal('101000000000')
expect(chooseGasPriceOptions(opts1, opts2).maxPriorityFeePerGas).to.be.equal('21000000000')
expect(chooseGasPriceOptions(opts2, opts1).maxFeePerGas).to.be.equal('101000000000')
expect(chooseGasPriceOptions(opts2, opts1).maxPriorityFeePerGas).to.be.equal('21000000000')
expect(chooseGasPriceOptions(opts2, undefined).maxFeePerGas).to.be.equal('101000000000')
expect(chooseGasPriceOptions(opts2, undefined).maxPriorityFeePerGas).to.be.equal('20000000000')
expect(chooseGasPriceOptions(undefined, opts2).maxFeePerGas).to.be.equal('101000000000')
expect(chooseGasPriceOptions(undefined, opts2).maxPriorityFeePerGas).to.be.equal('20000000000')
})
})
})

@ -45,8 +45,5 @@
"compile:contracts": "yarn workspace tokenbridge-contracts run compile",
"install:deploy": "cd contracts/deploy && npm install --unsafe-perm --silent",
"postinstall": "test -n \"$NOYARNPOSTINSTALL\" || ln -sf $(pwd)/node_modules/openzeppelin-solidity/ contracts/node_modules/openzeppelin-solidity"
},
"resolutions": {
"**/@mycrypto/eth-scan": "3.5.3"
}
}

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@ -1,33 +0,0 @@
pragma solidity 0.4.24;
interface IERC20 {
function transferFrom(address from,address to,uint256 value) external;
function transfer(address to,uint256 value) external;
}
contract cDaiMock {
IERC20 daiToken;
event Transfer(address indexed from, address indexed to, uint amount);
event Mint(address minter, uint mintAmount, uint mintTokens);
event Redeem(address redeemer, uint redeemAmount, uint redeemTokens);
function mint(uint256 mintAmount) external returns (uint256) {
daiToken.transferFrom(msg.sender, address(this), mintAmount);
emit Mint(msg.sender, mintAmount, mintAmount);
emit Transfer(address(this), msg.sender, mintAmount);
return 0;
}
function redeemUnderlying(uint256 redeemAmount) external returns (uint256) {
daiToken.transfer(msg.sender, redeemAmount);
emit Transfer(msg.sender, address(this), redeemAmount);
emit Redeem(msg.sender, redeemAmount, redeemAmount);
return 0;
}
}

2801
yarn.lock

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