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/**
* @license
* Copyright 2023 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import fs from 'fs';
import {rename, unlink, mkdtemp} from 'fs/promises';
import os from 'os';
import path from 'path';
import {
Browser as SupportedBrowsers,
createProfile,
Cache,
detectBrowserPlatform,
Browser,
} from '@puppeteer/browsers';
import {debugError} from '../common/util.js';
import {assert} from '../util/assert.js';
import type {
BrowserLaunchArgumentOptions,
PuppeteerNodeLaunchOptions,
} from './LaunchOptions.js';
import {ProductLauncher, type ResolvedLaunchArgs} from './ProductLauncher.js';
import type {PuppeteerNode} from './PuppeteerNode.js';
import {rm} from './util/fs.js';
/**
* @internal
*/
export class FirefoxLauncher extends ProductLauncher {
constructor(puppeteer: PuppeteerNode) {
super(puppeteer, 'firefox');
}
static getPreferences(
extraPrefsFirefox?: Record<string, unknown>,
protocol?: 'cdp' | 'webDriverBiDi'
): Record<string, unknown> {
return {
...extraPrefsFirefox,
...(protocol === 'webDriverBiDi'
? {
// Only enable the WebDriver BiDi protocol
'remote.active-protocols': 1,
}
: {
// Do not close the window when the last tab gets closed
'browser.tabs.closeWindowWithLastTab': false,
// Prevent various error message on the console
// jest-puppeteer asserts that no error message is emitted by the console
'network.cookie.cookieBehavior': 0,
// Temporarily force disable BFCache in parent (https://bit.ly/bug-1732263)
'fission.bfcacheInParent': false,
// Only enable the CDP protocol
'remote.active-protocols': 2,
}),
// Force all web content to use a single content process. TODO: remove
// this once Firefox supports mouse event dispatch from the main frame
// context. Once this happens, webContentIsolationStrategy should only
// be set for CDP. See
// https://bugzilla.mozilla.org/show_bug.cgi?id=1773393
'fission.webContentIsolationStrategy': 0,
};
}
/**
* @internal
*/
override async computeLaunchArguments(
options: PuppeteerNodeLaunchOptions = {}
): Promise<ResolvedLaunchArgs> {
const {
ignoreDefaultArgs = false,
args = [],
executablePath,
pipe = false,
extraPrefsFirefox = {},
debuggingPort = null,
} = options;
const firefoxArguments = [];
if (!ignoreDefaultArgs) {
firefoxArguments.push(...this.defaultArgs(options));
} else if (Array.isArray(ignoreDefaultArgs)) {
firefoxArguments.push(
...this.defaultArgs(options).filter(arg => {
return !ignoreDefaultArgs.includes(arg);
})
);
} else {
firefoxArguments.push(...args);
}
if (
!firefoxArguments.some(argument => {
return argument.startsWith('--remote-debugging-');
})
) {
if (pipe) {
assert(
debuggingPort === null,
'Browser should be launched with either pipe or debugging port - not both.'
);
}
firefoxArguments.push(`--remote-debugging-port=${debuggingPort || 0}`);
}
let userDataDir: string | undefined;
let isTempUserDataDir = true;
// Check for the profile argument, which will always be set even
// with a custom directory specified via the userDataDir option.
const profileArgIndex = firefoxArguments.findIndex(arg => {
return ['-profile', '--profile'].includes(arg);
});
if (profileArgIndex !== -1) {
userDataDir = firefoxArguments[profileArgIndex + 1];
if (!userDataDir || !fs.existsSync(userDataDir)) {
throw new Error(`Firefox profile not found at '${userDataDir}'`);
}
// When using a custom Firefox profile it needs to be populated
// with required preferences.
isTempUserDataDir = false;
} else {
userDataDir = await mkdtemp(this.getProfilePath());
firefoxArguments.push('--profile');
firefoxArguments.push(userDataDir);
}
await createProfile(SupportedBrowsers.FIREFOX, {
path: userDataDir,
preferences: FirefoxLauncher.getPreferences(
extraPrefsFirefox,
options.protocol
),
});
let firefoxExecutable: string;
if (this.puppeteer._isPuppeteerCore || executablePath) {
assert(
executablePath,
`An \`executablePath\` must be specified for \`puppeteer-core\``
);
firefoxExecutable = executablePath;
} else {
firefoxExecutable = this.executablePath();
}
return {
isTempUserDataDir,
userDataDir,
args: firefoxArguments,
executablePath: firefoxExecutable,
};
}
/**
* @internal
*/
override async cleanUserDataDir(
userDataDir: string,
opts: {isTemp: boolean}
): Promise<void> {
if (opts.isTemp) {
try {
await rm(userDataDir);
} catch (error) {
debugError(error);
throw error;
}
} else {
try {
// When an existing user profile has been used remove the user
// preferences file and restore possibly backuped preferences.
await unlink(path.join(userDataDir, 'user.js'));
const prefsBackupPath = path.join(userDataDir, 'prefs.js.puppeteer');
if (fs.existsSync(prefsBackupPath)) {
const prefsPath = path.join(userDataDir, 'prefs.js');
await unlink(prefsPath);
await rename(prefsBackupPath, prefsPath);
}
} catch (error) {
debugError(error);
}
}
}
override executablePath(): string {
// replace 'latest' placeholder with actual downloaded revision
if (this.puppeteer.browserRevision === 'latest') {
const cache = new Cache(this.puppeteer.defaultDownloadPath!);
const installedFirefox = cache.getInstalledBrowsers().find(browser => {
return (
browser.platform === detectBrowserPlatform() &&
browser.browser === Browser.FIREFOX
);
});
if (installedFirefox) {
this.actualBrowserRevision = installedFirefox.buildId;
}
}
return this.resolveExecutablePath();
}
override defaultArgs(options: BrowserLaunchArgumentOptions = {}): string[] {
const {
devtools = false,
headless = !devtools,
args = [],
userDataDir = null,
} = options;
const firefoxArguments = ['--no-remote'];
switch (os.platform()) {
case 'darwin':
firefoxArguments.push('--foreground');
break;
case 'win32':
firefoxArguments.push('--wait-for-browser');
break;
}
if (userDataDir) {
firefoxArguments.push('--profile');
firefoxArguments.push(userDataDir);
}
if (headless) {
firefoxArguments.push('--headless');
}
if (devtools) {
firefoxArguments.push('--devtools');
}
if (
args.every(arg => {
return arg.startsWith('-');
})
) {
firefoxArguments.push('about:blank');
}
firefoxArguments.push(...args);
return firefoxArguments;
}
}
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