electron/lib/browser/rpc-server.js
2020-03-20 13:28:31 -07:00

137 lines
4.5 KiB
JavaScript

'use strict';
const electron = require('electron');
const fs = require('fs');
const eventBinding = process.electronBinding('event');
const clipboard = process.electronBinding('clipboard');
const features = process.electronBinding('features');
const { crashReporterInit } = require('@electron/internal/browser/crash-reporter-init');
const { ipcMainInternal } = require('@electron/internal/browser/ipc-main-internal');
const ipcMainUtils = require('@electron/internal/browser/ipc-main-internal-utils');
const guestViewManager = require('@electron/internal/browser/guest-view-manager');
const typeUtils = require('@electron/internal/common/type-utils');
const emitCustomEvent = function (contents, eventName, ...args) {
const event = eventBinding.createWithSender(contents);
electron.app.emit(eventName, event, contents, ...args);
contents.emit(eventName, event, ...args);
return event;
};
const logStack = function (contents, code, stack) {
if (stack) {
console.warn(`WebContents (${contents.id}): ${code}`, stack);
}
};
// Implements window.close()
ipcMainInternal.on('ELECTRON_BROWSER_WINDOW_CLOSE', function (event) {
const window = event.sender.getOwnerBrowserWindow();
if (window) {
window.close();
}
event.returnValue = null;
});
ipcMainUtils.handleSync('ELECTRON_CRASH_REPORTER_INIT', function (event, options) {
return crashReporterInit(options);
});
ipcMainInternal.handle('ELECTRON_BROWSER_GET_LAST_WEB_PREFERENCES', function (event) {
return event.sender.getLastWebPreferences();
});
// Methods not listed in this set are called directly in the renderer process.
const allowedClipboardMethods = (() => {
switch (process.platform) {
case 'darwin':
return new Set(['readFindText', 'writeFindText']);
case 'linux':
return new Set(Object.keys(clipboard));
default:
return new Set();
}
})();
ipcMainUtils.handleSync('ELECTRON_BROWSER_CLIPBOARD', function (event, method, ...args) {
if (!allowedClipboardMethods.has(method)) {
throw new Error(`Invalid method: ${method}`);
}
return typeUtils.serialize(electron.clipboard[method](...typeUtils.deserialize(args)));
});
if (features.isDesktopCapturerEnabled()) {
const desktopCapturer = require('@electron/internal/browser/desktop-capturer');
ipcMainInternal.handle('ELECTRON_BROWSER_DESKTOP_CAPTURER_GET_SOURCES', function (event, options, stack) {
logStack(event.sender, 'desktopCapturer.getSources()', stack);
const customEvent = emitCustomEvent(event.sender, 'desktop-capturer-get-sources');
if (customEvent.defaultPrevented) {
console.error('Blocked desktopCapturer.getSources()');
return [];
}
return desktopCapturer.getSources(event, options);
});
}
const isRemoteModuleEnabled = features.isRemoteModuleEnabled()
? require('@electron/internal/browser/remote/server').isRemoteModuleEnabled
: () => false;
const getPreloadScript = async function (preloadPath) {
let preloadSrc = null;
let preloadError = null;
try {
preloadSrc = (await fs.promises.readFile(preloadPath)).toString();
} catch (error) {
preloadError = error;
}
return { preloadPath, preloadSrc, preloadError };
};
if (features.isExtensionsEnabled()) {
ipcMainUtils.handleSync('ELECTRON_GET_CONTENT_SCRIPTS', () => []);
} else {
const { getContentScripts } = require('@electron/internal/browser/chrome-extension');
ipcMainUtils.handleSync('ELECTRON_GET_CONTENT_SCRIPTS', () => getContentScripts());
}
ipcMainUtils.handleSync('ELECTRON_BROWSER_SANDBOX_LOAD', async function (event) {
const preloadPaths = event.sender._getPreloadPaths();
let contentScripts = [];
if (!features.isExtensionsEnabled()) {
const { getContentScripts } = require('@electron/internal/browser/chrome-extension');
contentScripts = getContentScripts();
}
const webPreferences = event.sender.getLastWebPreferences() || {};
return {
contentScripts,
preloadScripts: await Promise.all(preloadPaths.map(path => getPreloadScript(path))),
isRemoteModuleEnabled: isRemoteModuleEnabled(event.sender),
isWebViewTagEnabled: guestViewManager.isWebViewTagEnabled(event.sender),
guestInstanceId: webPreferences.guestInstanceId,
openerId: webPreferences.openerId,
process: {
arch: process.arch,
platform: process.platform,
env: { ...process.env },
version: process.version,
versions: process.versions,
execPath: process.helperExecPath
}
};
});
ipcMainInternal.on('ELECTRON_BROWSER_PRELOAD_ERROR', function (event, preloadPath, error) {
event.sender.emit('preload-error', event, preloadPath, error);
});