110 lines
2.8 KiB
TypeScript
110 lines
2.8 KiB
TypeScript
import axios from 'axios'
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import { ChainId, Relayer, RelayerParsedVersion } from '@/types'
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import { errors } from '@/constants'
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import { getProvider, getRelayerValidateFunction } from '@/services'
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import { GetTornadoStatusParams, RelayerParsedData } from '../@types'
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async function getRelayerData({
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url,
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ensName,
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hasEnabledLightProxy,
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chainId = ChainId.MAINNET,
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}: GetTornadoStatusParams): Promise<RelayerParsedData> {
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let response = null
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try {
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if (!url) {
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throw new Error(errors.validation.INVALID_RELAYER)
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}
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response = await axios.get<Relayer>(`${url}/status`)
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} catch {
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if (ensName) {
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const relayerData = await getRelayerDataFromENS(ensName, chainId)
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if (relayerData) {
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await checkProtocol(relayerData.txt)
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response = await axios.get<Relayer>(`${relayerData.url}/status`)
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}
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}
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}
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if (!response) {
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throw new Error(errors.validation.NO_RESPONSE)
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}
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const validate = getRelayerValidateFunction(chainId)
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const isValid = await validate(response.data)
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if (!isValid) {
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return { isValid: false }
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}
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const semVerRegex =
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/^(?<major>0|[1-9]\d*)\.(?<minor>0|[1-9]\d*)\.(?<patch>0|[1-9]\d*)(?:-(?<prerelease>(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+(?<buildmetadata>[0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$/
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const regexpResult = semVerRegex.exec(response.data.version)
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const invalidVersionData = { isValid: false, address: response.data.rewardAccount, chainId: response.data.netId }
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if (!regexpResult?.groups) {
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console.error('askRelayerStatus', url || ensName, 'Version specified incorrectly.')
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return invalidVersionData
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}
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const { major } = regexpResult.groups as RelayerParsedVersion
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const minimalMajorVersion = 5
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const isMajorVersionUpdated = Number(major) >= minimalMajorVersion
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if (!isMajorVersionUpdated) {
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console.error('askRelayerStatus', url || ensName, 'Outdated version.')
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return invalidVersionData
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}
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return { isValid, address: response.data.rewardAccount, chainId: response.data.netId }
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}
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function checkProtocol(txt: string) {
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if (txt.includes('http')) {
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throw new Error(errors.validation.TXT_WITH_PROTOCOL)
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}
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}
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async function getRelayerDataFromENS(ensName: string, chainId: ChainId = ChainId.MAINNET) {
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try {
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if (!ensName.includes('.eth')) {
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return undefined
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}
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const { provider } = getProvider(chainId)
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const resolver = await provider.getResolver(ensName)
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if (!resolver) {
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return undefined
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}
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const url = await resolver.getText('url')
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if (!url) {
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return undefined
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}
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return {
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txt: url,
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url: `${window.location.protocol}//${url}`,
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address: resolver.address,
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}
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} catch (err) {
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return undefined
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}
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}
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export const tornadoRelayerService = {
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checkProtocol,
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getRelayerData,
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getRelayerDataFromENS,
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}
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