176 lines
7.4 KiB
JavaScript
176 lines
7.4 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const events_1 = require("events");
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const path = require("path");
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const Module = require('module');
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// Make sure globals like "process" and "global" are always available in preload
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// scripts even after they are deleted in "loaded" script.
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//
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// Note 1: We rely on a Node patch to actually pass "process" and "global" and
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// other arguments to the wrapper.
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//
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// Note 2: Node introduced a new code path to use native code to wrap module
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// code, which does not work with this hack. However by modifying the
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// "Module.wrapper" we can force Node to use the old code path to wrap module
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// code with JavaScript.
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Module.wrapper = [
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'(function (exports, require, module, __filename, __dirname, process, global, Buffer) { ' +
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// By running the code in a new closure, it would be possible for the module
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// code to override "process" and "Buffer" with local variables.
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'return function (exports, require, module, __filename, __dirname) { ',
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'\n}.call(this, exports, require, module, __filename, __dirname); });'
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];
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// We modified the original process.argv to let node.js load the
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// init.js, we need to restore it here.
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process.argv.splice(1, 1);
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// Clear search paths.
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require('../common/reset-search-paths');
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// Import common settings.
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require('@electron/internal/common/init');
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const globalPaths = Module.globalPaths;
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// Expose public APIs.
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globalPaths.push(path.join(__dirname, 'api', 'exports'));
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// The global variable will be used by ipc for event dispatching
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const v8Util = process.electronBinding('v8_util');
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const ipcEmitter = new events_1.EventEmitter();
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const ipcInternalEmitter = new events_1.EventEmitter();
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v8Util.setHiddenValue(global, 'ipc', ipcEmitter);
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v8Util.setHiddenValue(global, 'ipc-internal', ipcInternalEmitter);
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v8Util.setHiddenValue(global, 'ipcNative', {
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onMessage(internal, channel, args, senderId) {
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const sender = internal ? ipcInternalEmitter : ipcEmitter;
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sender.emit(channel, { sender, senderId }, ...args);
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}
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});
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// Use electron module after everything is ready.
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const { ipcRendererInternal } = require('@electron/internal/renderer/ipc-renderer-internal');
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const { webFrameInit } = require('@electron/internal/renderer/web-frame-init');
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webFrameInit();
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// Process command line arguments.
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const { hasSwitch, getSwitchValue } = process.electronBinding('command_line');
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const parseOption = function (name, defaultValue, converter) {
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return hasSwitch(name)
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? (converter
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? converter(getSwitchValue(name))
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: getSwitchValue(name))
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: defaultValue;
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};
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const contextIsolation = hasSwitch('context-isolation');
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const nodeIntegration = hasSwitch('node-integration');
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const webviewTag = hasSwitch('webview-tag');
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const isHiddenPage = hasSwitch('hidden-page');
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const usesNativeWindowOpen = hasSwitch('native-window-open');
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const preloadScript = parseOption('preload', null);
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const preloadScripts = parseOption('preload-scripts', [], value => value.split(path.delimiter));
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const appPath = parseOption('app-path', null);
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const guestInstanceId = parseOption('guest-instance-id', null, value => parseInt(value));
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const openerId = parseOption('opener-id', null, value => parseInt(value));
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// The arguments to be passed to isolated world.
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const isolatedWorldArgs = { ipcRendererInternal, guestInstanceId, isHiddenPage, openerId, usesNativeWindowOpen };
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// The webContents preload script is loaded after the session preload scripts.
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if (preloadScript) {
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preloadScripts.push(preloadScript);
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}
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switch (window.location.protocol) {
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case 'devtools:': {
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// Override some inspector APIs.
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require('@electron/internal/renderer/inspector');
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break;
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}
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case 'chrome-extension:': {
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// Inject the chrome.* APIs that chrome extensions require
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require('@electron/internal/renderer/chrome-api').injectTo(window.location.hostname, window);
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break;
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}
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case 'chrome:':
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break;
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default: {
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// Override default web functions.
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const { windowSetup } = require('@electron/internal/renderer/window-setup');
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windowSetup(guestInstanceId, openerId, isHiddenPage, usesNativeWindowOpen);
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// Inject content scripts.
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require('@electron/internal/renderer/content-scripts-injector')(process.getRenderProcessPreferences);
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}
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}
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// Load webview tag implementation.
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if (process.isMainFrame) {
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const { webViewInit } = require('@electron/internal/renderer/web-view/web-view-init');
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webViewInit(contextIsolation, webviewTag, guestInstanceId);
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}
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// Pass the arguments to isolatedWorld.
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if (contextIsolation) {
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v8Util.setHiddenValue(global, 'isolated-world-args', isolatedWorldArgs);
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}
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if (nodeIntegration) {
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// Export node bindings to global.
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global.require = require;
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global.module = module;
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// Set the __filename to the path of html file if it is file: protocol.
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if (window.location.protocol === 'file:') {
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const location = window.location;
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let pathname = location.pathname;
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if (process.platform === 'win32') {
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if (pathname[0] === '/')
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pathname = pathname.substr(1);
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const isWindowsNetworkSharePath = location.hostname.length > 0 && globalPaths[0].startsWith('\\');
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if (isWindowsNetworkSharePath) {
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pathname = `//${location.host}/${pathname}`;
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}
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}
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global.__filename = path.normalize(decodeURIComponent(pathname));
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global.__dirname = path.dirname(global.__filename);
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// Set module's filename so relative require can work as expected.
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module.filename = global.__filename;
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// Also search for module under the html file.
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module.paths = module.paths.concat(Module._nodeModulePaths(global.__dirname));
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}
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else {
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global.__filename = __filename;
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global.__dirname = __dirname;
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if (appPath) {
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// Search for module under the app directory
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module.paths = module.paths.concat(Module._nodeModulePaths(appPath));
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}
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}
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// Redirect window.onerror to uncaughtException.
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window.onerror = function (_message, _filename, _lineno, _colno, error) {
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if (global.process.listeners('uncaughtException').length > 0) {
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// We do not want to add `uncaughtException` to our definitions
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// because we don't want anyone else (anywhere) to throw that kind
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// of error.
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global.process.emit('uncaughtException', error);
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return true;
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}
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else {
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return false;
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}
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};
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}
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else {
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// Delete Node's symbols after the Environment has been loaded.
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process.once('loaded', function () {
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delete global.process;
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delete global.Buffer;
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delete global.setImmediate;
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delete global.clearImmediate;
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delete global.global;
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});
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}
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const errorUtils = require('@electron/internal/common/error-utils');
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// Load the preload scripts.
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for (const preloadScript of preloadScripts) {
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try {
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require(preloadScript);
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}
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catch (error) {
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console.error(`Unable to load preload script: ${preloadScript}`);
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console.error(`${error}`);
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ipcRendererInternal.send('ELECTRON_BROWSER_PRELOAD_ERROR', preloadScript, errorUtils.serialize(error));
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}
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}
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// Warn about security issues
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if (process.isMainFrame) {
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const { securityWarnings } = require('@electron/internal/renderer/security-warnings');
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securityWarnings(nodeIntegration);
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}
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