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82 lines
2.3 KiB
82 lines
2.3 KiB
/*global Web3*/
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cleanContextForImports()
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require('web3/dist/web3.min.js')
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const LocalMessageDuplexStream = require('post-message-stream')
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// const PingStream = require('ping-pong-stream/ping')
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// const endOfStream = require('end-of-stream')
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const setupDappAutoReload = require('./lib/auto-reload.js')
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const MetamaskInpageProvider = require('./lib/inpage-provider.js')
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restoreContextAfterImports()
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//
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// setup plugin communication
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//
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// setup background connection
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var metamaskStream = new LocalMessageDuplexStream({
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name: 'inpage',
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target: 'contentscript',
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})
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// compose the inpage provider
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var inpageProvider = new MetamaskInpageProvider(metamaskStream)
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//
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// setup web3
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//
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var web3 = new Web3(inpageProvider)
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web3.setProvider = function () {
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console.log('MetaMask - overrode web3.setProvider')
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}
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console.log('MetaMask - injected web3')
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// export global web3, with usage-detection reload fn
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var triggerReload = setupDappAutoReload(web3)
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// listen for reset requests from metamask
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var reloadStream = inpageProvider.multiStream.createStream('reload')
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reloadStream.once('data', triggerReload)
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// setup ping timeout autoreload
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// LocalMessageDuplexStream does not self-close, so reload if pingStream fails
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// var pingChannel = inpageProvider.multiStream.createStream('pingpong')
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// var pingStream = new PingStream({ objectMode: true })
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// wait for first successful reponse
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// disable pingStream until https://github.com/MetaMask/metamask-plugin/issues/746 is resolved more gracefully
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// metamaskStream.once('data', function(){
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// pingStream.pipe(pingChannel).pipe(pingStream)
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// })
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// endOfStream(pingStream, triggerReload)
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// set web3 defaultAccount
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inpageProvider.publicConfigStore.subscribe(function (state) {
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web3.eth.defaultAccount = state.selectedAddress
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})
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//
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// util
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//
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// need to make sure we aren't affected by overlapping namespaces
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// and that we dont affect the app with our namespace
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// mostly a fix for web3's BigNumber if AMD's "define" is defined...
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var __define
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function cleanContextForImports () {
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__define = global.define
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try {
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global.define = undefined
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} catch (_) {
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console.warn('MetaMask - global.define could not be deleted.')
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}
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}
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function restoreContextAfterImports () {
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try {
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global.define = __define
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} catch (_) {
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console.warn('MetaMask - global.define could not be overwritten.')
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}
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}
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