mirror of
https://github.com/kremalicious/metamask-extension.git
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40 lines
1.4 KiB
JavaScript
40 lines
1.4 KiB
JavaScript
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const extension = require('extensionizer')
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module.exports = setupLedgerIframe
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/**
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* Injects an iframe into the current document to
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* enable the interaction with ledger devices
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*/
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function setupLedgerIframe () {
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const ORIGIN = 'http://localhost:9000'
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const ledgerIframe = document.createElement('iframe')
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ledgerIframe.src = ORIGIN
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console.log('Injecting ledger iframe')
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document.head.appendChild(ledgerIframe)
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console.log('[LEDGER]: LEDGER BG LISTENER READY')
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extension.runtime.onMessage.addListener(({action, params}) => {
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console.log('[LEDGER]: GOT MSG FROM THE KEYRING', action, params)
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if (action.search('ledger-') !== -1) {
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//Forward messages from the keyring to the iframe
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sendMessage({action, params})
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}
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})
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function sendMessage(msg) {
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ledgerIframe.contentWindow.postMessage({...msg, target: 'LEDGER-IFRAME'}, '*')
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}
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/*
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Passing messages from iframe to background script
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*/
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console.log('[LEDGER]: LEDGER FROM-IFRAME LISTENER READY')
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window.addEventListener('message', event => {
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if(event.origin !== ORIGIN) return false
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if (event.data && event.data.action && event.data.action.search('ledger-') !== -1) {
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// Forward messages from the iframe to the keyring
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console.log('[LEDGER] : forwarding msg', event.data)
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extension.runtime.sendMessage(event.data)
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}
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})
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}
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