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contentscript - fix obj-multiplex instantiation and use pump for streams

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This commit is contained in:
kumavis 2017-09-11 14:30:30 -07:00
parent 41164f61db
commit 8545453a9d
1 changed files with 35 additions and 14 deletions
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49
app/scripts/contentscript.js
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@ -1,11 +1,12 @@
const LocalMessageDuplexStream = require('post-message-stream')
const PongStream = require('ping-pong-stream/pong')
const PortStream = require('./lib/port-stream.js')
const ObjectMultiplex = require('./lib/obj-multiplex')
const extension = require('extensionizer')
const fs = require('fs')
const path = require('path')
const pump = require('pump')
const LocalMessageDuplexStream = require('post-message-stream')
const PongStream = require('ping-pong-stream/pong')
const ObjectMultiplex = require('obj-multiplex')
const extension = require('extensionizer')
const PortStream = require('./lib/port-stream.js')
const inpageText = fs.readFileSync(path.join(__dirname, 'inpage.js')).toString()
// Eventually this streaming injection could be replaced with:
@ -50,22 +51,42 @@ function setupStreams () {
pageStream.pipe(pluginStream).pipe(pageStream)
// setup local multistream channels
const mx = ObjectMultiplex()
mx.on('error', console.error)
mx.pipe(pageStream).pipe(mx)
mx.pipe(pluginStream).pipe(mx)
const mux = new ObjectMultiplex()
pump(
mux,
pageStream,
mux,
(err) => logStreamDisconnectWarning('MetaMask Inpage', err)
)
pump(
mux,
pluginStream,
mux,
(err) => logStreamDisconnectWarning('MetaMask Background', err)
)
// connect ping stream
const pongStream = new PongStream({ objectMode: true })
pongStream.pipe(mx.createStream('pingpong')).pipe(pongStream)
pump(
mux,
pongStream,
mux,
(err) => logStreamDisconnectWarning('MetaMask PingPongStream', err)
)
// connect phishing warning stream
const phishingStream = mx.createStream('phishing')
const phishingStream = mux.createStream('phishing')
phishingStream.once('data', redirectToPhishingWarning)
// ignore unused channels (handled by background, inpage)
mx.ignoreStream('provider')
mx.ignoreStream('publicConfig')
mux.ignoreStream('provider')
mux.ignoreStream('publicConfig')
}
function logStreamDisconnectWarning (remoteLabel, err) {
let warningMsg = `MetamaskContentscript - lost connection to ${remoteLabel}`
if (err) warningMsg += '\n' + err.stack
console.warn(warningMsg)
}
function shouldInjectWeb3 () {