electron/lib/content_script/init.js
Samuel Maddock f943db7ad5 feat: Add content script world isolation (#17032)
* Execute content script in isolated world

* Inject script into newly created extension worlds

* Create new content_script_bundle for extension scripts

* Initialize chrome API in content script bundle

* Define Chrome extension isolated world ID range

1 << 20 was chosen as it provides a sufficiently large range of IDs for extensions, but also provides a large enough buffer for any user worlds in [1000, 1 << 20).

Ultimately this range can be changed if any user application raises it as an issue.

* Insert content script CSS into document

This now avoids a script wrapper to inject the style sheet. This closely matches the code used by chromium in `ScriptInjection::InjectCss`.

* Pass extension ID to isolated world via v8 private
2019-03-11 16:27:57 -07:00

35 lines
1.4 KiB
JavaScript

'use strict'
/* global nodeProcess, isolatedWorld, worldId */
const { EventEmitter } = require('events')
process.atomBinding = require('@electron/internal/common/atom-binding-setup').atomBindingSetup(nodeProcess.binding, 'renderer')
const v8Util = process.atomBinding('v8_util')
// The `lib/renderer/ipc-renderer-internal.js` module looks for the ipc object in the
// "ipc-internal" hidden value
v8Util.setHiddenValue(global, 'ipc-internal', new EventEmitter())
// The process object created by browserify is not an event emitter, fix it so
// the API is more compatible with non-sandboxed renderers.
for (const prop of Object.keys(EventEmitter.prototype)) {
if (process.hasOwnProperty(prop)) {
delete process[prop]
}
}
Object.setPrototypeOf(process, EventEmitter.prototype)
const isolatedWorldArgs = v8Util.getHiddenValue(isolatedWorld, 'isolated-world-args')
if (isolatedWorldArgs) {
const { ipcRendererInternal, guestInstanceId, isHiddenPage, openerId, usesNativeWindowOpen } = isolatedWorldArgs
const { windowSetup } = require('@electron/internal/renderer/window-setup')
windowSetup(ipcRendererInternal, guestInstanceId, openerId, isHiddenPage, usesNativeWindowOpen)
}
const extensionId = v8Util.getHiddenValue(isolatedWorld, `extension-${worldId}`)
if (extensionId) {
const chromeAPI = require('@electron/internal/renderer/chrome-api')
chromeAPI.injectTo(extensionId, false, window)
}