A Metamask fork with Infura removed and default networks editable
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ciphermask/app/scripts/lib/ens-ipfs/setup.js

87 lines
2.8 KiB

import extension from 'extensionizer'
import getFetchWithTimeout from '../../../../shared/modules/fetch-with-timeout'
import resolveEnsToIpfsContentId from './resolver'
const fetchWithTimeout = getFetchWithTimeout(30000)
const supportedTopLevelDomains = ['eth']
export default function setupEnsIpfsResolver({
provider,
getCurrentNetwork,
getIpfsGateway,
}) {
// install listener
const urlPatterns = supportedTopLevelDomains.map((tld) => `*://*.${tld}/*`)
extension.webRequest.onErrorOccurred.addListener(webRequestDidFail, {
urls: urlPatterns,
types: ['main_frame'],
})
// return api object
return {
// uninstall listener
remove() {
extension.webRequest.onErrorOccurred.removeListener(webRequestDidFail)
},
}
async function webRequestDidFail(details) {
const { tabId, url } = details
// ignore requests that are not associated with tabs
// only attempt ENS resolution on mainnet
if (tabId === -1 || getCurrentNetwork() !== '1') {
return
}
// parse ens name
const { hostname: name, pathname, search, hash: fragment } = new URL(url)
const domainParts = name.split('.')
const topLevelDomain = domainParts[domainParts.length - 1]
// if unsupported TLD, abort
if (!supportedTopLevelDomains.includes(topLevelDomain)) {
return
}
// otherwise attempt resolve
attemptResolve({ tabId, name, pathname, search, fragment })
}
async function attemptResolve({ tabId, name, pathname, search, fragment }) {
const ipfsGateway = getIpfsGateway()
extension.tabs.update(tabId, { url: `loading.html` })
let url = `https://app.ens.domains/name/${name}`
try {
const { type, hash } = await resolveEnsToIpfsContentId({ provider, name })
if (type === 'ipfs-ns' || type === 'ipns-ns') {
const resolvedUrl = `https://${hash}.${type.slice(
0,
4,
)}.${ipfsGateway}${pathname}${search || ''}${fragment || ''}`
try {
// check if ipfs gateway has result
const response = await fetchWithTimeout(resolvedUrl, {
method: 'HEAD',
})
if (response.status === 200) {
url = resolvedUrl
}
} catch (err) {
console.warn(err)
}
} else if (type === 'swarm-ns') {
url = `https://swarm-gateways.net/bzz:/${hash}${pathname}${
search || ''
}${fragment || ''}`
} else if (type === 'onion' || type === 'onion3') {
url = `http://${hash}.onion${pathname}${search || ''}${fragment || ''}`
} else if (type === 'zeronet') {
url = `http://127.0.0.1:43110/${hash}${pathname}${search || ''}${
fragment || ''
}`
}
} catch (err) {
console.warn(err)
} finally {
extension.tabs.update(tabId, { url })
}
}
}