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metamask-extension/app/scripts/phishing-detect.js

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window.onload = function () {
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if (window.location.pathname === '/phishing.html') {
const {hostname} = parseHash()
document.getElementById('esdbLink').innerHTML = '<b>To read more about this site and why it was blocked, <a href="https://etherscamdb.info/domain/' + hostname + '"> please navigate here</a>.</b>'
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}
}
const querystring = require('querystring')
const dnode = require('dnode')
const { EventEmitter } = require('events')
const PortStream = require('extension-port-stream')
const extension = require('extensionizer')
const setupMultiplex = require('./lib/stream-utils.js').setupMultiplex
const { getEnvironmentType } = require('./lib/util')
const ExtensionPlatform = require('./platforms/extension')
document.addEventListener('DOMContentLoaded', start)
function start () {
const windowType = getEnvironmentType(window.location.href)
global.platform = new ExtensionPlatform()
global.METAMASK_UI_TYPE = windowType
const extensionPort = extension.runtime.connect({ name: windowType })
const connectionStream = new PortStream(extensionPort)
const mx = setupMultiplex(connectionStream)
setupControllerConnection(mx.createStream('controller'), (err, metaMaskController) => {
if (err) {
return
}
const suspect = parseHash()
const unsafeContinue = () => {
window.location.href = suspect.href
}
const continueLink = document.getElementById('unsafe-continue')
continueLink.addEventListener('click', () => {
metaMaskController.whitelistPhishingDomain(suspect.hostname)
unsafeContinue()
})
})
}
function setupControllerConnection (connectionStream, cb) {
const eventEmitter = new EventEmitter()
const accountManagerDnode = dnode({
sendUpdate (state) {
eventEmitter.emit('update', state)
},
})
connectionStream.pipe(accountManagerDnode).pipe(connectionStream)
accountManagerDnode.once('remote', (accountManager) => cb(null, accountManager))
}
function parseHash () {
const hash = window.location.hash.substring(1)
return querystring.parse(hash)
}