fakebrowser
Version:
🤖 Fake fingerprints to bypass anti-bot systems. Simulate mouse and keyboard operations to make behavior like a real person.
194 lines • 17.9 kB
JavaScript
import * as fs from 'fs-extra';
import * as path from 'path';
import * as URLToolkit from 'url-toolkit';
import * as http from 'http';
import * as url from 'url';
import axios from 'axios';
import { Agent } from 'https';
import { strict as assert } from 'assert';
import Driver from './Driver.js';
import DeviceDescriptorHelper from './DeviceDescriptor.js';
import { PptrPatcher } from './PptrPatcher';
import { FakeBrowser } from './FakeBrowser';
const kFakeDDFileName = '__fakebrowser_fakeDD.json';
const kInternalHttpServerHeartbeatMagic = '__fakebrowser__&88ff22--';
export class BrowserLauncher {
static checkLaunchOptionsLegal(options) {
if (!options || !options.args || !options.args.length) {
return;
}
// These args are set by FakeBrowser and cannot be set externally:
const externalCannotSetArgs = [
'--user-data-dir',
'--lang',
'--window-position',
'--window-size',
];
if (options.args.filter(e => externalCannotSetArgs.includes(e.toLocaleLowerCase().split('=')[0])).length > 0) {
throw new TypeError(`${externalCannotSetArgs} cannot be set in options.args`);
}
}
static prepareFakeDeviceDesc(params) {
// Go to the userDataDir specified by the user and read the __fakebrowser_fakeDD.json file
// or create it if it does not exist.
const userDataDir = params.userDataDir;
assert(userDataDir);
if (!fs.existsSync(userDataDir)) {
// may throw
fs.mkdirSync(userDataDir, { recursive: true });
}
// Read from existing files, or generate if not available.
const fakeDDPathName = path.resolve(userDataDir, `./${kFakeDDFileName}`);
let tempFakeDD = null;
try {
tempFakeDD = (fs.existsSync(fakeDDPathName)
? fs.readJsonSync(fakeDDPathName)
: params.deviceDesc);
DeviceDescriptorHelper.checkLegal(tempFakeDD);
}
catch (ex) {
console.warn('FakeDD illegal');
// It is possible that some fields are missing due to the deviceDesc update and need to recreate fakeDD
const orgTempFakeDD = tempFakeDD;
tempFakeDD = params.deviceDesc;
if (orgTempFakeDD) {
tempFakeDD.fontSalt = orgTempFakeDD.fontSalt;
tempFakeDD.canvasSalt = orgTempFakeDD.canvasSalt;
}
}
const { fakeDeviceDesc, needsUpdate, } = DeviceDescriptorHelper.buildFakeDeviceDescriptor(tempFakeDD);
if (needsUpdate) {
fs.writeJsonSync(fakeDDPathName, fakeDeviceDesc, { spaces: 2 });
}
params.fakeDeviceDesc = fakeDeviceDesc;
}
static async connect(params) {
await this.bootInternalHTTPServer();
this.prepareFakeDeviceDesc(params);
assert(params.fakeDeviceDesc);
const uuid = DeviceDescriptorHelper.deviceUUID(params.fakeDeviceDesc);
const { vanillaBrowser, pptrExtra, } = await Driver.connect(uuid, params);
const launchTime = new Date().getTime();
const fb = new FakeBrowser(params, vanillaBrowser, pptrExtra, launchTime, uuid);
// pages 0 cannot be hook, lets drop it
await fb._patchPages0Bug();
return fb;
}
static async launch(params) {
this.bootBrowserSurvivalChecker();
await this.bootInternalHTTPServer();
// deviceDesc, userDataDir cannot be empty
this.checkLaunchOptionsLegal(params.launchOptions);
this.prepareFakeDeviceDesc(params);
assert(params.fakeDeviceDesc);
const uuid = DeviceDescriptorHelper.deviceUUID(params.fakeDeviceDesc);
const { vanillaBrowser, pptrExtra, } = await Driver.launch(uuid, FakeBrowser.globalConfig.defaultLaunchArgs, params);
const launchTime = new Date().getTime();
const fb = new FakeBrowser(params, vanillaBrowser, pptrExtra, launchTime, uuid);
// pages 0 cannot be hook, lets drop it
await fb._patchPages0Bug();
// Manage surviving browsers and kill them if they time out
this._fakeBrowserInstances.push(fb);
return fb;
}
static async bootInternalHTTPServer() {
if (!this._httpServer) {
this._httpServer = http.createServer();
this._httpServer.on('request', async (req, res) => {
assert(req.url);
const { query, pathname } = url.parse(req.url, true);
if (pathname === '/hb') {
res.write(kInternalHttpServerHeartbeatMagic);
res.end();
}
if (pathname === '/patchWorker') {
const relUrl = query['relUrl'];
const workerUrl = query['workerUrl'];
const uuid = query['uuid'];
const fullUrl = URLToolkit.buildAbsoluteURL(relUrl, workerUrl);
console.log('request worker content from: ', fullUrl);
// Object.fromEntries ES2019
const reqHeaders = Object.fromEntries(Object.entries(req.headers).map(e => ([e[0], e[1][0]])));
delete reqHeaders['host'];
// TODO: get through proxy
const jsResp = await axios.get(fullUrl, {
headers: reqHeaders,
httpsAgent: new Agent({
rejectUnauthorized: false,
}),
});
let jsContent = jsResp.data;
const browser = BrowserLauncher.getBrowserWithUUID(uuid);
if (browser) {
jsContent = await PptrPatcher.patchWorkerJsContent(browser, jsContent);
}
const respHeaders = jsResp.headers;
delete respHeaders['content-length'];
res.writeHead(jsResp.status, jsResp.statusText, respHeaders);
res.write(jsContent);
res.end();
}
});
// If the port listens to errors, determine if the heartbeat interface is successful
try {
this._httpServer.listen(FakeBrowser.globalConfig.internalHttpServerPort);
}
catch (ex) {
const hbUrl = `http://127.0.0.1:${FakeBrowser.globalConfig.internalHttpServerPort}/hb`;
try {
const hbData = (await axios.get(hbUrl)).data;
if (hbData === kInternalHttpServerHeartbeatMagic) {
try {
this._httpServer.close();
}
finally {
this._httpServer = null;
}
return;
}
}
catch (ignore) {
}
throw ex;
}
}
}
static bootBrowserSurvivalChecker() {
if (!this._checkerIntervalId) {
this._checkerIntervalId = setInterval(async () => {
const killThese = this._fakeBrowserInstances.filter(e => (e.launchParams.maxSurvivalTime > 0)
&& (new Date().getTime() > e.bindingTime + e.launchParams.maxSurvivalTime));
const p = [];
for (const fb of killThese) {
p.push(fb.shutdown());
}
await Promise.all(p);
}, 5 * 1000);
}
}
static getBrowserWithUUID(uuid) {
return this._fakeBrowserInstances.find(e => e.uuid === uuid);
}
static async _forceShutdown(fb) {
await Driver.shutdown(fb.vanillaBrowser);
const browserIndex = this._fakeBrowserInstances.indexOf(fb);
assert(browserIndex >= 0);
this._fakeBrowserInstances.splice(browserIndex, 1);
// If all browsers have exited, close internal http service
if (this._fakeBrowserInstances.length === 0) {
// console.log('close appserver')
if (this._httpServer) {
try {
this._httpServer.close();
}
finally {
this._httpServer = null;
}
}
}
}
}
BrowserLauncher._fakeBrowserInstances = [];
BrowserLauncher._checkerIntervalId = null;
BrowserLauncher._httpServer = null;
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