/**
 * MIT License
 *
 * Copyright (c) 2020-present, Elastic NV
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */ import { URL } from 'url' ; import { createServer } from 'http' ; import { createProxyServer } from 'http-proxy' ; import { chromium } from 'playwright-chromium' ; import { log } from './logger' ; export class BrowserService { closeCallbacks = [ ] ; proxyServer = createServer ( ) ; constructor ( private options = { port : 9322 } ) { } init ( ) { const proxy = createProxyServer ( ) ; this . proxyServer . on ( 'upgrade' , async ( req , socket , head ) => { const browserServer = await chromium . launchServer ( { headless : true } ) ; const wsEndpoint = browserServer . wsEndpoint ( ) ; const { pathname , origin } = new URL ( wsEndpoint ) ; req . url = pathname ; log ( `New browser: ${ wsEndpoint }` ) ; proxy . ws ( req , socket , head , { target : origin } ) ; const closeBrowser = async ( ) => { const index = this . closeCallbacks . indexOf ( closeBrowser ) ; if ( index >= 0 ) { this . closeCallbacks . splice ( index , 1 ) ; } await browserServer . close ( ) ; log ( `Socket closed: ${ wsEndpoint }` ) ; } ; this . closeCallbacks . push ( closeBrowser ) ; socket . on ( 'close' , closeBrowser ) ; socket . on ( 'error' , closeBrowser ) ; } ) ; this . proxyServer . listen ( this . options . port , ( ) => { log ( `Listening on port: ${ this . options . port }` ) ; } ) ; } async dispose ( ) { for ( let i = 0 ; i < this . closeCallbacks . length ; i ++ ) { const callback = this . closeCallbacks [ i ] ; await callback ( ) ; } this . closeCallbacks = [ ] ; await new Promise ( resolve => { this . proxyServer . close ( resolve ) ; } ) ; } }