tokenbridge/monitor/utils/events.js

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require('dotenv').config()
const logger = require('../logger')('eventsUtils')
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const {
BRIDGE_MODES,
getBridgeABIs,
getBridgeMode,
HOME_ERC_TO_NATIVE_ABI,
ERC20_ABI,
ZERO_ADDRESS,
OLD_AMB_USER_REQUEST_FOR_SIGNATURE_ABI,
OLD_AMB_USER_REQUEST_FOR_AFFIRMATION_ABI
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} = require('../../commons')
const { normalizeEventInformation } = require('./message')
const { writeFile, readCacheFile } = require('./file')
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const { web3Home, web3Foreign, getHomeBlockNumber, getForeignBlockNumber } = require('./web3')
const { getPastEvents } = require('./web3Cache')
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const { COMMON_HOME_BRIDGE_ADDRESS, COMMON_FOREIGN_BRIDGE_ADDRESS, MONITOR_CACHE_EVENTS } = process.env
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const MONITOR_HOME_START_BLOCK = Number(process.env.MONITOR_HOME_START_BLOCK) || 0
const MONITOR_FOREIGN_START_BLOCK = Number(process.env.MONITOR_FOREIGN_START_BLOCK) || 0
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const cacheFilePath = '/tmp/cachedEvents.json'
async function main(mode) {
if (MONITOR_CACHE_EVENTS === 'true') {
logger.debug('checking existing events cache')
const cachedEvents = readCacheFile(cacheFilePath)
if (cachedEvents !== false) {
logger.debug('returning events stored in cache')
return cachedEvents
}
}
const homeErcBridge = new web3Home.eth.Contract(HOME_ERC_TO_NATIVE_ABI, COMMON_HOME_BRIDGE_ADDRESS)
const bridgeMode = mode || (await getBridgeMode(homeErcBridge))
const { HOME_ABI, FOREIGN_ABI } = getBridgeABIs(bridgeMode)
Consistent variable naming (#198) * Add console.table * First steps in validate script * env rename * Added parameter names * Descriptions * Print and configuration * Added more parameters * Rename gas oracle to gas supplier * More changes * Removed env examples for now * RPC rename * Bridge address rename * More changes * jobs * Renames * Typo * jobs * Changes * jobs * Changes * Monitor changes * jovs * Typo * Changes * REACT_APP_ env prefix * Typo * Rollback changes * Oracle deployment * Defaults * Monitor * Naming * Typo * Typo * Envs * ui deployment * ALl jobs * Vars in ultimate * Lint * Lint * Lint * Another way to add REACT_APP prefixing * Unnecessary mapping * No output timeout * No output timeout * Got rid of ERC20_TOKEN_ADDRESS * Configuration readme * Configuration * Prefixes * timeout * Docs * Docs * docs * docs * docs * Roll back ERC20_TOKEN_ADDRESS for erc-to-erc * Typo * lint * Rollback * ROllback validator * Rollback yarn.lock * dai and wetc update * Rollback ERC20_TOKEN_ADDRESS * erc to native * examples * all jobs * roll back * roll back ERC20_TOKEN_ADDRESS: "0xdbeE25CbE97e4A5CC6c499875774dc7067E9426B" * ui env example * typo * Allow rpc for ultimate * Test * ERC20_TOKEN_ADDRESS rollback * Specify port * React port * All jobs * cosmetics * Values * Restore erc20 token * Rearrange example for easier comparision * Rearrange ultimate for easier comparision * Rearrange for easier comparision * Refactor * Conditional app styles * Loading environment variables in react app * Add missing vars for UI in wetc and dai * Bring back test parameters readme * Readme for monitor vars * Reading environment variables in e2e-commons (#207)
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const homeBridge = new web3Home.eth.Contract(HOME_ABI, COMMON_HOME_BRIDGE_ADDRESS)
const foreignBridge = new web3Foreign.eth.Contract(FOREIGN_ABI, COMMON_FOREIGN_BRIDGE_ADDRESS)
let isExternalErc20 = false
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let erc20Contract
let erc20Address
let normalizeEvent = normalizeEventInformation
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if (bridgeMode !== BRIDGE_MODES.ARBITRARY_MESSAGE) {
erc20Address = await foreignBridge.methods.erc20token().call()
isExternalErc20 = true
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erc20Contract = new web3Foreign.eth.Contract(ERC20_ABI, erc20Address)
} else {
normalizeEvent = e => e
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}
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logger.debug('getting last block numbers')
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const homeBlockNumber = await getHomeBlockNumber()
const foreignBlockNumber = await getForeignBlockNumber()
const homeConfirmations = await homeBridge.methods.requiredBlockConfirmations().call()
const foreignConfirmations = await foreignBridge.methods.requiredBlockConfirmations().call()
const homeDelayedBlockNumber = homeBlockNumber - homeConfirmations
const foreignDelayedBlockNumber = foreignBlockNumber - foreignConfirmations
let homeToForeignRequests = []
let foreignToHomeRequests = []
let homeMigrationBlock = MONITOR_HOME_START_BLOCK
let foreignMigrationBlock = MONITOR_FOREIGN_START_BLOCK
if (bridgeMode === BRIDGE_MODES.ARBITRARY_MESSAGE) {
const oldHomeBridge = new web3Home.eth.Contract(OLD_AMB_USER_REQUEST_FOR_SIGNATURE_ABI, COMMON_HOME_BRIDGE_ADDRESS)
const oldForeignBridge = new web3Foreign.eth.Contract(
OLD_AMB_USER_REQUEST_FOR_AFFIRMATION_ABI,
COMMON_FOREIGN_BRIDGE_ADDRESS
)
logger.debug("calling oldHomeBridge.getPastEvents('UserRequestForSignature(bytes)')")
homeToForeignRequests = (await getPastEvents(oldHomeBridge, {
event: 'UserRequestForSignature',
fromBlock: MONITOR_HOME_START_BLOCK,
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toBlock: homeDelayedBlockNumber,
chain: 'home'
})).map(normalizeEvent)
logger.debug(`found ${homeToForeignRequests.length} events`)
if (homeToForeignRequests.length > 0) {
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homeMigrationBlock = Math.max(...homeToForeignRequests.map(x => x.blockNumber))
}
logger.debug("calling oldForeignBridge.getPastEvents('UserRequestForAffirmation(bytes)')")
foreignToHomeRequests = (await getPastEvents(oldForeignBridge, {
event: 'UserRequestForAffirmation',
fromBlock: MONITOR_FOREIGN_START_BLOCK,
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toBlock: foreignDelayedBlockNumber,
chain: 'foreign'
})).map(normalizeEvent)
logger.debug(`found ${foreignToHomeRequests.length} events`)
if (foreignToHomeRequests.length > 0) {
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foreignMigrationBlock = Math.max(...foreignToHomeRequests.map(x => x.blockNumber))
}
}
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logger.debug("calling homeBridge.getPastEvents('UserRequestForSignature')")
const homeToForeignRequestsNew = (await getPastEvents(homeBridge, {
event: 'UserRequestForSignature',
fromBlock: homeMigrationBlock,
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toBlock: homeDelayedBlockNumber,
chain: 'home'
})).map(normalizeEvent)
homeToForeignRequests = [...homeToForeignRequests, ...homeToForeignRequestsNew]
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logger.debug("calling foreignBridge.getPastEvents('RelayedMessage')")
const homeToForeignConfirmations = (await getPastEvents(foreignBridge, {
event: 'RelayedMessage',
Consistent variable naming (#198) * Add console.table * First steps in validate script * env rename * Added parameter names * Descriptions * Print and configuration * Added more parameters * Rename gas oracle to gas supplier * More changes * Removed env examples for now * RPC rename * Bridge address rename * More changes * jobs * Renames * Typo * jobs * Changes * jobs * Changes * Monitor changes * jovs * Typo * Changes * REACT_APP_ env prefix * Typo * Rollback changes * Oracle deployment * Defaults * Monitor * Naming * Typo * Typo * Envs * ui deployment * ALl jobs * Vars in ultimate * Lint * Lint * Lint * Another way to add REACT_APP prefixing * Unnecessary mapping * No output timeout * No output timeout * Got rid of ERC20_TOKEN_ADDRESS * Configuration readme * Configuration * Prefixes * timeout * Docs * Docs * docs * docs * docs * Roll back ERC20_TOKEN_ADDRESS for erc-to-erc * Typo * lint * Rollback * ROllback validator * Rollback yarn.lock * dai and wetc update * Rollback ERC20_TOKEN_ADDRESS * erc to native * examples * all jobs * roll back * roll back ERC20_TOKEN_ADDRESS: "0xdbeE25CbE97e4A5CC6c499875774dc7067E9426B" * ui env example * typo * Allow rpc for ultimate * Test * ERC20_TOKEN_ADDRESS rollback * Specify port * React port * All jobs * cosmetics * Values * Restore erc20 token * Rearrange example for easier comparision * Rearrange ultimate for easier comparision * Rearrange for easier comparision * Refactor * Conditional app styles * Loading environment variables in react app * Add missing vars for UI in wetc and dai * Bring back test parameters readme * Readme for monitor vars * Reading environment variables in e2e-commons (#207)
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fromBlock: MONITOR_FOREIGN_START_BLOCK,
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toBlock: foreignBlockNumber,
chain: 'foreign',
safeToBlock: foreignDelayedBlockNumber
})).map(normalizeEvent)
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logger.debug("calling homeBridge.getPastEvents('AffirmationCompleted')")
const foreignToHomeConfirmations = (await getPastEvents(homeBridge, {
event: 'AffirmationCompleted',
Consistent variable naming (#198) * Add console.table * First steps in validate script * env rename * Added parameter names * Descriptions * Print and configuration * Added more parameters * Rename gas oracle to gas supplier * More changes * Removed env examples for now * RPC rename * Bridge address rename * More changes * jobs * Renames * Typo * jobs * Changes * jobs * Changes * Monitor changes * jovs * Typo * Changes * REACT_APP_ env prefix * Typo * Rollback changes * Oracle deployment * Defaults * Monitor * Naming * Typo * Typo * Envs * ui deployment * ALl jobs * Vars in ultimate * Lint * Lint * Lint * Another way to add REACT_APP prefixing * Unnecessary mapping * No output timeout * No output timeout * Got rid of ERC20_TOKEN_ADDRESS * Configuration readme * Configuration * Prefixes * timeout * Docs * Docs * docs * docs * docs * Roll back ERC20_TOKEN_ADDRESS for erc-to-erc * Typo * lint * Rollback * ROllback validator * Rollback yarn.lock * dai and wetc update * Rollback ERC20_TOKEN_ADDRESS * erc to native * examples * all jobs * roll back * roll back ERC20_TOKEN_ADDRESS: "0xdbeE25CbE97e4A5CC6c499875774dc7067E9426B" * ui env example * typo * Allow rpc for ultimate * Test * ERC20_TOKEN_ADDRESS rollback * Specify port * React port * All jobs * cosmetics * Values * Restore erc20 token * Rearrange example for easier comparision * Rearrange ultimate for easier comparision * Rearrange for easier comparision * Refactor * Conditional app styles * Loading environment variables in react app * Add missing vars for UI in wetc and dai * Bring back test parameters readme * Readme for monitor vars * Reading environment variables in e2e-commons (#207)
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fromBlock: MONITOR_HOME_START_BLOCK,
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toBlock: homeBlockNumber,
chain: 'home',
safeToBlock: homeDelayedBlockNumber
})).map(normalizeEvent)
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logger.debug("calling foreignBridge.getPastEvents('UserRequestForAffirmation')")
const foreignToHomeRequestsNew = (await getPastEvents(foreignBridge, {
event: 'UserRequestForAffirmation',
fromBlock: foreignMigrationBlock,
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toBlock: foreignDelayedBlockNumber,
chain: 'foreign'
})).map(normalizeEvent)
foreignToHomeRequests = [...foreignToHomeRequests, ...foreignToHomeRequestsNew]
let informationRequests
let informationResponses
if (bridgeMode === BRIDGE_MODES.ARBITRARY_MESSAGE) {
logger.debug("calling homeBridge.getPastEvents('UserRequestForInformation')")
informationRequests = (await getPastEvents(homeBridge, {
event: 'UserRequestForInformation',
fromBlock: MONITOR_HOME_START_BLOCK,
toBlock: homeDelayedBlockNumber,
chain: 'home'
})).map(normalizeEvent)
logger.debug("calling foreignBridge.getPastEvents('InformationRetrieved')")
informationResponses = (await getPastEvents(homeBridge, {
event: 'InformationRetrieved',
fromBlock: MONITOR_HOME_START_BLOCK,
toBlock: homeBlockNumber,
safeToBlock: homeDelayedBlockNumber,
chain: 'home'
})).map(normalizeEvent)
}
if (isExternalErc20) {
logger.debug("calling erc20Contract.getPastEvents('Transfer')")
let transferEvents = (await getPastEvents(erc20Contract, {
event: 'Transfer',
fromBlock: MONITOR_FOREIGN_START_BLOCK,
toBlock: foreignDelayedBlockNumber,
options: {
filter: { to: COMMON_FOREIGN_BRIDGE_ADDRESS }
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},
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
// 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)
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),
options: {
filter: { to: COMMON_FOREIGN_BRIDGE_ADDRESS }
},
chain: 'foreign'
})).map(normalizeEvent)
transferEvents = [...halfDuplexTransferEvents, ...transferEvents]
// Get transfer events that didn't have a UserRequestForAffirmation event in the same transaction
const directTransfers = transferEvents.filter(
e => foreignToHomeRequests.findIndex(t => t.referenceTx === e.referenceTx) === -1
)
foreignToHomeRequests = [...foreignToHomeRequests, ...directTransfers]
}
logger.debug('Done')
const result = {
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homeToForeignRequests,
homeToForeignConfirmations,
foreignToHomeConfirmations,
foreignToHomeRequests,
informationRequests,
informationResponses,
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isExternalErc20,
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bridgeMode,
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homeBlockNumber,
foreignBlockNumber,
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homeDelayedBlockNumber,
foreignDelayedBlockNumber
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}
if (MONITOR_CACHE_EVENTS === 'true') {
logger.debug('saving obtained events into cache file')
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writeFile(cacheFilePath, result, { useCwd: false })
}
return result
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}
module.exports = main