62 lines
2.0 KiB
JavaScript
62 lines
2.0 KiB
JavaScript
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var h = require('hyperscript')
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var muxrpc = require('muxrpc')
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var pull = require('pull-stream')
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var pushable = require('pull-pushable')
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var ssbref = require('ssb-ref')
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var app = require('../app')
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var manifest = {
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'get' : 'async',
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'getPublicKey' : 'async',
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'whoami' : 'async',
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'relatedMessages' : 'async',
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'createFeedStream' : 'source',
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'createUserStream' : 'source',
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'createLogStream' : 'source',
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'messagesByType' : 'source',
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'links' : 'source'
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}
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module.exports = function (opts) {
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if (!opts) throw "`opts` required in com.webview"
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var webview = h('webview', { src: opts.url, preload: './webview-preload.js' })
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// setup rpc
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var ssb = muxrpc(null, manifest, serialize)(app.ssb)
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function serialize (stream) { return stream }
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var rpcStream = ssb.createStream()
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var ipcPush = pushable()
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webview.addEventListener('ipc-message', function (e) {
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if (e.channel == 'navigate') {
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if (e.args[0] && ssbref.isLink(e.args[0]))
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window.location.hash = '#/webview/' + e.args[0]
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else
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console.warn('Security Error: page attempted to navigate to disallowed location,', e.args[0])
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}
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if (e.channel == 'muxrpc-ssb') {
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var msg = e.args[0]
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try { msg = JSON.parse(msg) }
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catch (e) { return }
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ipcPush.push(msg)
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}
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})
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pull(ipcPush, rpcStream, pull.drain(
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function (msg) { webview.send('muxrpc-ssb', JSON.stringify(msg)) },
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function (err) { if (err) { console.error(err) } }
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))
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// sandboxing
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// dont let the webview navigate away
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webview.addEventListener('did-stop-loading', function (e) {
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if (webview.getUrl().indexOf('http://localhost') !== 0 && webview.getUrl().indexOf('data:') !== 0) {
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console.warn('Security Error. Webview circumvented navigation sandbox.')
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webview.src = 'data:text/html,<strong>Security Error</strong> This page attempted to navigate out of its sandbox through explicit circumvention. Do not trust it!'
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}
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})
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return webview
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}
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