109 lines
4.1 KiB
JavaScript
109 lines
4.1 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const electron_1 = require("electron");
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const ipcRendererUtils = require("@electron/internal/renderer/ipc-renderer-internal-utils");
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const v8Util = process.electronBinding('v8_util');
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const IsolatedWorldIDs = {
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/**
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* Start of extension isolated world IDs, as defined in
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* atom_render_frame_observer.h
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*/
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ISOLATED_WORLD_EXTENSIONS: 1 << 20
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};
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let isolatedWorldIds = IsolatedWorldIDs.ISOLATED_WORLD_EXTENSIONS;
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const extensionWorldId = {};
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// https://cs.chromium.org/chromium/src/extensions/renderer/script_injection.cc?type=cs&sq=package:chromium&g=0&l=52
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const getIsolatedWorldIdForInstance = () => {
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// TODO(samuelmaddock): allocate and cleanup IDs
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return isolatedWorldIds++;
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};
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const escapePattern = function (pattern) {
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return pattern.replace(/[\\^$+?.()|[\]{}]/g, '\\$&');
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};
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// Check whether pattern matches.
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// https://developer.chrome.com/extensions/match_patterns
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const matchesPattern = function (pattern) {
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if (pattern === '<all_urls>')
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return true;
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const regexp = new RegExp(`^${pattern.split('*').map(escapePattern).join('.*')}$`);
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const url = `${location.protocol}//${location.host}${location.pathname}`;
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return url.match(regexp);
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};
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// Run the code with chrome API integrated.
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const runContentScript = function (extensionId, url, code) {
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// Assign unique world ID to each extension
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const worldId = extensionWorldId[extensionId] ||
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(extensionWorldId[extensionId] = getIsolatedWorldIdForInstance());
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// store extension ID for content script to read in isolated world
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v8Util.setHiddenValue(global, `extension-${worldId}`, extensionId);
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electron_1.webFrame.setIsolatedWorldInfo(worldId, {
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name: `${extensionId} [${worldId}]`
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// TODO(samuelmaddock): read `content_security_policy` from extension manifest
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// csp: manifest.content_security_policy,
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});
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const sources = [{ code, url }];
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return electron_1.webFrame.executeJavaScriptInIsolatedWorld(worldId, sources);
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};
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const runAllContentScript = function (scripts, extensionId) {
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for (const { url, code } of scripts) {
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runContentScript.call(window, extensionId, url, code);
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}
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};
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const runStylesheet = function (url, code) {
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electron_1.webFrame.insertCSS(code);
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};
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const runAllStylesheet = function (css) {
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for (const { url, code } of css) {
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runStylesheet.call(window, url, code);
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}
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};
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// Run injected scripts.
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// https://developer.chrome.com/extensions/content_scripts
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const injectContentScript = function (extensionId, script) {
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if (!process.isMainFrame && !script.allFrames)
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return;
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if (!script.matches.some(matchesPattern))
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return;
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if (script.js) {
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const fire = runAllContentScript.bind(window, script.js, extensionId);
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if (script.runAt === 'document_start') {
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process.once('document-start', fire);
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}
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else if (script.runAt === 'document_end') {
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process.once('document-end', fire);
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}
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else {
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document.addEventListener('DOMContentLoaded', fire);
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}
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}
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if (script.css) {
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const fire = runAllStylesheet.bind(window, script.css);
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if (script.runAt === 'document_start') {
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process.once('document-start', fire);
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}
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else if (script.runAt === 'document_end') {
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process.once('document-end', fire);
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}
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else {
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document.addEventListener('DOMContentLoaded', fire);
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}
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}
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};
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// Handle the request of chrome.tabs.executeJavaScript.
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ipcRendererUtils.handle('CHROME_TABS_EXECUTE_SCRIPT', function (event, extensionId, url, code) {
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return runContentScript.call(window, extensionId, url, code);
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});
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module.exports = (getRenderProcessPreferences) => {
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// Read the renderer process preferences.
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const preferences = getRenderProcessPreferences();
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if (preferences) {
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for (const pref of preferences) {
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if (pref.contentScripts) {
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for (const script of pref.contentScripts) {
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injectContentScript(pref.extensionId, script);
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}
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}
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}
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}
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};
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