mirror of
https://github.com/puppeteer/puppeteer
synced 2024-06-14 14:02:48 +00:00
13e8580a34
This patch:
- split browser launching logic from Browser into `lib/Launcher.js`
- introduce `puppeteer` namespace which currently has a single `launch`
method to start a browser
With this patch, the browser is no longer created with the `new
Browser(..)` command. Instead, it should be "launched" via the
`puppeteer.launch` method:
```js
const puppeteer = require('puppeteer');
puppeteer.launch().then(async browser => {
...
});
```
With this approach browser instance lifetime matches the lifetime of
actual browser process. This helps us:
- remove proxy streams, e.g. browser.stderr and browser.stdout
- cleanup browser class and make it possible to connect to remote
browser
- introduce events on the browser instance, e.g. 'page' event. In case
of lazy-launching browser, we should've launch browser when an event
listener is added, which is unneded comlpexity.
116 lines
3.2 KiB
JavaScript
Executable File
116 lines
3.2 KiB
JavaScript
Executable File
#!/usr/bin/env node
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/**
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* Copyright 2017 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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const await = require('./utilities').await;
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const vm = require('vm');
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const path = require('path');
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const fs = require('fs');
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const Phantom = require('./Phantom');
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const FileSystem = require('./FileSystem');
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const System = require('./System');
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const WebPage = require('./WebPage');
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const WebServer = require('./WebServer');
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const child_process = require('child_process');
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const puppeteer = require('..');
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const argv = require('minimist')(process.argv.slice(2), {
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alias: { v: 'version' },
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boolean: ['headless'],
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default: {'headless': true },
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});
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if (argv.version) {
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console.log('PhantomShim v' + Phantom.version.join('.'));
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return;
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}
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if (argv['ssl-certificates-path']) {
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console.error('Flag --ssl-certificates-path is not supported.');
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process.exit(1);
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return;
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}
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let scriptArguments = argv._;
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if (!scriptArguments.length) {
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console.log(__filename.split('/').pop() + ' [scriptfile]');
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return;
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}
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let scriptPath = path.resolve(process.cwd(), scriptArguments[0]);
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if (!fs.existsSync(scriptPath)) {
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console.error(`script not found: ${scriptPath}`);
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process.exit(1);
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return;
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}
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let context = createPhantomContext(argv.headless, scriptPath, argv);
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let scriptContent = fs.readFileSync(scriptPath, 'utf8');
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vm.runInContext(scriptContent, context);
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/**
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* @param {boolean} headless
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* @param {string} scriptPath
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* @param {!Array<string>} argv
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* @return {!Object}
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*/
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function createPhantomContext(headless, scriptPath, argv) {
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let context = {};
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let browser = null;
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context.setInterval = setInterval;
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context.setTimeout = setTimeout;
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context.clearInterval = clearInterval;
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context.clearTimeout = clearTimeout;
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context.phantom = Phantom.create(context, scriptPath);
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context.console = console;
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context.window = context;
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context.WebPage = options => new WebPage(ensureBrowser(), scriptPath, options);
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vm.createContext(context);
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let nativeExports = {
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fs: new FileSystem(),
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system: new System(argv._),
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webpage: {
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create: context.WebPage,
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},
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webserver: {
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create: () => new WebServer(),
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},
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cookiejar: {
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create: () => {},
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},
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child_process: child_process
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};
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let bootstrapPath = path.join(__dirname, '..', 'third_party', 'phantomjs', 'bootstrap.js');
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let bootstrapCode = fs.readFileSync(bootstrapPath, 'utf8');
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vm.runInContext(bootstrapCode, context, {
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filename: 'bootstrap.js'
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})(nativeExports);
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return context;
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function ensureBrowser() {
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if (!browser) {
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browser = await(puppeteer.launch({
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headless: argv.headless,
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args: ['--no-sandbox']
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}));
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}
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return browser;
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}
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}
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