使用Electron / Node.js，如何检测macOS上所有已安装的浏览器？ [英] Using Electron / Node.js, how can I detect all installed browsers on macOS?

问题描述

我正在尝试找到一种方法来列出我的macOS Electron应用程序中所有已安装的Web浏览器。最好的方法是什么？或者...我很高兴维护可能的浏览器列表，但需要一种方法来检查它们是否存在。

I'm trying to find a way to list all installed web browsers in my macOS Electron app. What would be the best way to do this? Or... I'm happy to maintain a list of possible browsers but need a way to check they are present.

推荐答案

您需要创建子进程，该子进程将执行命令以接收当前安装的应用程序。幸运的是，macOS提供了 system_profiler 实用程序，甚至更好，它允许通过 -xml 参数导出XML。但是请注意，到目前为止，它并不是最快的功能。

You'll need to create a child process which executes a command to receive the currently installed applications. Luckely macOS offers the system_profiler utility for doing so and even better it allows XML export via the -xml argument. But be aware it is by far not the fastest function.

您需要从子进程回调中获取缓冲区块，将其编码为utf-8，然后解析XML字符串，例如 xml2js 。之后，可以简单检查是否检查浏览器的属性。

You'll need to get the buffer chunks from the subprocess callback, encode it as utf-8 and then parse the XML string through something like xml2js. After that it is a simple check of the property of the browser is checked or not.

Will Stone更新的代码

Updated code by Will Stone

import jp from 'jsonpath' // for easier json traversal

import { spawn } from 'child_process'
import parser from 'xml2json'

const sp = spawn('system_profiler', ['-xml', 'SPApplicationsDataType'])

let profile = ''

const browsers = [
  'Brave',
  'Chromium',
  'Firefox',
  'Google Chrome',
  'Maxthon',
  'Opera',
  'Safari',
  'SeaMonkey',
  'TorBrowser',
  'Vivaldi'
]

sp.stdout.setEncoding('utf8')
sp.stdout.on('data', data => {
  profile += data // gather chunked data
})

sp.stderr.on('data', data => {
  console.log(`stderr: ${data}`)
})

sp.on('close', code => {
  console.log(`child process exited with code ${code}`)
})

sp.stdout.on('end', function() {
  profile = parser.toJson(profile, { object: true })
  const installedBrowsers = jp
    .query(profile, 'plist.array.dict.array[1].dict[*].string[0]')
    .filter(item => browsers.indexOf(item) > -1)
  console.log(installedBrowsers)
  console.log('Finished collecting data chunks.')
})

初始代码：

const { spawn } = require('child_process');
const parser = new xml2js.Parser();
const sp = spawn('system_profiler', ['-xml', 'SPApplicationsDataType']);

sp.stdout.on('data', (data) => {
  parser.parseString(data, function(err, result){
    console.log(result)
  });
});

sp.stderr.on('data', (data) => {
  console.log(`stderr: ${data}`);
});

sp.on('close', (code) => {
  console.log(`child process exited with code ${code}`);
});

这篇关于使用Electron / Node.js，如何检测macOS上所有已安装的浏览器？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！