A brief discussion on how to obtain WI-FI password using Node.js-JS Tutorial-php.cn

A brief discussion on how to obtain WI-FI password using Node.js

青灯夜游

Release： 2021-09-08 10:49:47

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利用Node.js如何获取WI-FI密码？下面本篇文章给大家介绍一下使用Node.js获取WI-FI密码的方法，希望对大家有所帮助！

A brief discussion on how to obtain WI-FI password using Node.js

【推荐学习：《nodejs 教程》】

演示效果

全局安装wifi-password-cli依赖

npm install wifi-password-cli -g
# or
npx wifi-password-cli

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使用

$ wifi-password [network-name]

$ wifi-password
12345678

$ wifi-password 办公室wifi
a1234b2345

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觉得Node.js很神奇是么？其实并不是，我们看看它是如何实现的

实现原理

OSX系统

通过下面的命令查询wifi密码

security find-generic-password -D "AirPort network password" -wa "wifi-name"

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Linux系统

所有的wi-fi连接信息都在/etc/NetworkManager/system-connections/文件夹中

我们通过下面的命令来查询wifi密码

sudo cat /etc/NetworkManager/system-connections/<wifi-name>

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Windows系统

通过下面的命令查询wifi密码

netsh wlan show profile name=<wifi-name> key=clear

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实现源码

它的实现源码也很简单，感兴趣可以学习

https://github.com/kevva/wifi-password

入口文件是index.js，首先通过判断用户的操作系统去选择不同的获取方式

&#39;use strict&#39;;
const wifiName = require(&#39;wifi-name&#39;);

module.exports = ssid => {
	let fn = require(&#39;./lib/linux&#39;);

	if (process.platform === &#39;darwin&#39;) {
		fn = require(&#39;./lib/osx&#39;);
	}

	if (process.platform === &#39;win32&#39;) {
		fn = require(&#39;./lib/win&#39;);
	}

	if (ssid) {
		return fn(ssid);
	}

	return wifiName().then(fn);
};

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Linux

&#39;use strict&#39;;
const execa = require(&#39;execa&#39;);

module.exports = ssid => {
	const cmd = &#39;sudo&#39;;
	const args = [&#39;cat&#39;, `/etc/NetworkManager/system-connections/${ssid}`];

	return execa.stdout(cmd, args).then(stdout => {
		let ret;

		ret = /^\s*(?:psk|password)=(.+)\s*$/gm.exec(stdout);
		ret = ret && ret.length ? ret[1] : null;

		if (!ret) {
			throw new Error(&#39;Could not get password&#39;);
		}

		return ret;
	});
};

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OSX

&#39;use strict&#39;;
const execa = require(&#39;execa&#39;);

module.exports = ssid => {
	const cmd = &#39;security&#39;;
	const args = [&#39;find-generic-password&#39;, &#39;-D&#39;, &#39;AirPort network password&#39;, &#39;-wa&#39;, ssid];

	return execa(cmd, args)
		.then(res => {
			if (res.stderr) {
				throw new Error(res.stderr);
			}

			if (!res.stdout) {
				throw new Error(&#39;Could not get password&#39;);
			}

			return res.stdout;
		})
		.catch(err => {
			if (/The specified item could not be found in the keychain/.test(err.message)) {
				err.message = &#39;Your network doesn\&#39;t have a password&#39;;
			}

			throw err;
		});
};

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Windows

&#39;use strict&#39;;
const execa = require(&#39;execa&#39;);

module.exports = ssid => {
	const cmd = &#39;netsh&#39;;
	const args = [&#39;wlan&#39;, &#39;show&#39;, &#39;profile&#39;, `name=${ssid}`, &#39;key=clear&#39;];

	return execa.stdout(cmd, args).then(stdout => {
		let ret;

		ret = /^\s*Key Content\s*: (.+)\s*$/gm.exec(stdout);
		ret = ret && ret.length ? ret[1] : null;

		if (!ret) {
			throw new Error(&#39;Could not get password&#39;);
		}

		return ret;
	});
};

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