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(Feature) #1515 Gas estimation for NON-GETH nodes (#1523) 

* Remove unnecesary await

* Implement gas calculation for NON-GETH nodes

* Add tests

* Refactor estimateSafeTxGas: now getGasEstimationTxResponse calculates gas or throws errors based on the current node

* Refactor getOpenEthereumErrorDataResult to make it works with Nethermind
Updates tests

Co-authored-by: Daniel Sanchez <daniel.sanchez@gnosis.pm>
This commit is contained in:
Agustin Pane 2020-10-28 13:03:14 -03:00 committed by GitHub
parent 0278722645
commit 551db136f3
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 160 additions and 49 deletions
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1
.travis.yml
View File

@ -27,6 +27,7 @@ matrix:
- REACT_APP_NETWORK='volta'
- REACT_APP_GOOGLE_ANALYTICS=${REACT_APP_GOOGLE_ANALYTICS_ID_VOLTA}
- STAGING_BUCKET_NAME=${STAGING_VOLTA_BUCKET_NAME}
if: (branch = master AND NOT type = pull_request) OR tag IS present
- env:
- REACT_APP_NETWORK='energy_web_chain'
- REACT_APP_GOOGLE_ANALYTICS=${REACT_APP_GOOGLE_ANALYTICS_ID_EWC}

68
src/logic/safe/transactions/__tests__/gas.test.ts Normal file
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@ -0,0 +1,68 @@
import { getNonGETHErrorDataResult } from 'src/logic/safe/transactions/gas'
describe('getOpenEthereumErrorDataResult', () => {
it(`should return data hash from given OpenEthereum response`, () => {
// given
const resultExpected =
'0x08c379a0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000006457'
const openEthResponse =
'Internal JSON-RPC error.\n' +
'{\n' +
' "code": -32015,\n' +
' "message": "VM execution error.",\n' +
' "data": "Reverted 0x08c379a0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000006457"\n' +
'}'
// when
const result = getNonGETHErrorDataResult(openEthResponse)
// then
expect(result).toBe(resultExpected)
})
it(`should return undefined from empty OpenEthereum response`, () => {
// given
const resultExpected = undefined
const openEthResponse = ''
// when
const result = getNonGETHErrorDataResult(openEthResponse)
// then
expect(result).toBe(resultExpected)
})
it(`should return undefined from wrong OpenEthereum response`, () => {
// given
const resultExpected = undefined
const openEthResponse =
'Internal JSON-RPC error.\n' +
'{\n' +
' "code": -32015,\n' +
' "message": "VM execution error.",\n' +
' "data": "Reverted-test0x08c379a0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000006457"\n' +
'}'
// when
const result = getNonGETHErrorDataResult(openEthResponse)
// then
expect(result).toBe(resultExpected)
})
it(`should return data hash from given Nethermind response`, () => {
// given
const resultExpected =
'0x08c379a0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000006457'
const openEthResponse =
'Internal JSON-RPC error.\n' +
'{\n' +
' "code": -32015,\n' +
' "message": "VM execution error.",\n' +
' "data": "revert 0x08c379a0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000006457"\n' +
'}'
// when
const result = getNonGETHErrorDataResult(openEthResponse)
// then
expect(result).toBe(resultExpected)
})
})

138
src/logic/safe/transactions/gas.ts
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@ -11,6 +11,7 @@ import { ZERO_ADDRESS } from 'src/logic/wallets/ethAddresses'
import { EMPTY_DATA, calculateGasOf, calculateGasPrice } from 'src/logic/wallets/ethTransactions'
import { getAccountFrom, getWeb3 } from 'src/logic/wallets/getWeb3'
import { GnosisSafe } from 'src/types/contracts/GnosisSafe.d'
import { sameString } from 'src/utils/strings'
const estimateDataGasCosts = (data: string): number => {
const reducer = (accumulator, currentValue) => {
@ -54,7 +55,7 @@ export const estimateTxGasCosts = async (
const signatures = tx?.confirmations
? generateSignaturesFromTxConfirmations(tx.confirmations, preApprovingOwner)
: `0x000000000000000000000000${from.replace(
'0x',
EMPTY_DATA,
'',
)}000000000000000000000000000000000000000000000000000000000000000001`
txData = await safeInstance.methods
@ -92,6 +93,84 @@ export const estimateTxGasCosts = async (
}
}
// Parses the result of OpenEthereum/Parity and Nethermind error messages and returns the value
export const getNonGETHErrorDataResult = (errorMessage: string): string | undefined => {
// Extracts JSON object from the error message
const [, ...error] = errorMessage.split('\n')
try {
const errorAsJSON = JSON.parse(error.join(''))
if (errorAsJSON?.data) {
const [, dataResult] = errorAsJSON.data.split(' ')
return dataResult
}
} catch (error) {
console.error(`Error trying to extract data from openEthereum/Nethermind error message: ${errorMessage}`)
}
}
const getGasEstimationTxResponse = async (txConfig: {
to: string
from: string
data: string
gasPrice?: number
gas?: number
}): Promise<number> => {
const web3 = getWeb3()
try {
const result = await web3.eth.call(txConfig)
// GETH Nodes
// In case that the gas is not enough we will receive an EMPTY data
// Otherwise we will receive the gas amount as hash data
if (!sameString(result, EMPTY_DATA)) {
return new BigNumber(result.substring(138), 16).toNumber()
}
} catch (error) {
// OpenEthereum/Parity nodes
// Parity/OpenEthereum nodes always returns the response as an error
// So we try to extract the estimation result within the error in case is possible
const estimationData = getNonGETHErrorDataResult(error.message)
if (!estimationData || sameString(estimationData, EMPTY_DATA)) {
throw error
}
return new BigNumber(estimationData.substring(138), 16).toNumber()
}
// This will fail in case that we receive an EMPTY_DATA on the GETH node gas estimation
// We cannot throw this error above because it will be captured again on the OpenEthereum code bellow
throw new Error('Error while estimating the gas required for tx')
}
const calculateMinimumGasForTransaction = async (
additionalGasBatches: number[],
safeAddress: string,
estimateData: string,
txGasEstimation: number,
dataGasEstimation: number,
): Promise<number> => {
for (const additionalGas of additionalGasBatches) {
const amountOfGasToTryTx = txGasEstimation + dataGasEstimation + additionalGas
try {
await getGasEstimationTxResponse({
to: safeAddress,
from: safeAddress,
data: estimateData,
gasPrice: 0,
gas: amountOfGasToTryTx,
})
return txGasEstimation + additionalGas
} catch (error) {
console.log(`Error trying to estimate gas with amount: ${amountOfGasToTryTx}`)
}
}
return 0
}
export const estimateSafeTxGas = async (
safe: GnosisSafe | undefined,
safeAddress: string,
@ -106,63 +185,26 @@ export const estimateSafeTxGas = async (
safeInstance = await getGnosisSafeInstanceAt(safeAddress)
}
const web3 = await getWeb3()
const estimateData = safeInstance.methods.requiredTxGas(to, valueInWei, data, operation).encodeABI()
const estimateResponse = await web3.eth.call({
const gasEstimationResponse = await getGasEstimationTxResponse({
to: safeAddress,
from: safeAddress,
data: estimateData,
})
const txGasEstimation = new BigNumber(estimateResponse.substring(138), 16).toNumber() + 10000
const txGasEstimation = gasEstimationResponse + 10000
// 21000 - additional gas costs (e.g. base tx costs, transfer costs)
const dataGasEstimation = estimateDataGasCosts(estimateData) + 21000
const additionalGasBatches = [10000, 20000, 40000, 80000, 160000, 320000, 640000, 1280000, 2560000, 5120000]
const additionalGasBatches = [0, 10000, 20000, 40000, 80000, 160000, 320000, 640000, 1280000, 2560000, 5120000]
const batch = new web3.BatchRequest()
const estimationRequests = additionalGasBatches.map(
(additionalGas) =>
new Promise((resolve) => {
// there are no type definitions for .request, so for now ts-ignore is there
// Issue link: https://github.com/ethereum/web3.js/issues/3144
// eslint-disable-next-line
// @ts-ignore
const request = web3.eth.call.request(
{
to: safeAddress,
from: safeAddress,
data: estimateData,
gasPrice: 0,
gasLimit: txGasEstimation + dataGasEstimation + additionalGas,
},
(error, res) => {
// res.data check is for OpenEthereum/Parity revert messages format
const isOpenEthereumRevertMsg = res && typeof res.data === 'string'
const isEstimationSuccessful =
!error &&
((typeof res === 'string' && res !== '0x') || (isOpenEthereumRevertMsg && res.data.slice(9) !== '0x'))
resolve({
success: isEstimationSuccessful,
estimation: txGasEstimation + additionalGas,
})
},
)
batch.add(request)
}),
return await calculateMinimumGasForTransaction(
additionalGasBatches,
safeAddress,
estimateData,
txGasEstimation,
dataGasEstimation,
)
batch.execute()
const estimationResponses = await Promise.all(estimationRequests)
const firstSuccessfulRequest: any = estimationResponses.find((res: any) => res.success)
if (firstSuccessfulRequest) {
return firstSuccessfulRequest.estimation
}
return 0
} catch (error) {
console.error('Error calculating tx gas estimation', error)
return 0

2
src/logic/safe/transactions/offchainSigner/ethSigner.ts
View File

@ -10,7 +10,7 @@ type EthSignerArgs = {
}
export const ethSigner = async ({ safeTxHash, sender }: EthSignerArgs): Promise<string> => {
const web3 = await getWeb3()
const web3 = getWeb3()
return new Promise(function (resolve, reject) {
const provider = web3.currentProvider as AbstractProvider