浅谈利用Node.js如何获取WI-FI密码

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

$ wifi-password [network-name]

$ wifi-password
12345678

$ wifi-password 办公室wifi
a1234b2345

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

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

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

'use strict';
const wifiName = require('wifi-name');

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

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

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

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

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

'use strict';
const execa = require('execa');

module.exports = ssid => {
	const cmd = 'sudo';
	const args = ['cat', `/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('Could not get password');
		}

		return ret;
	});
};

'use strict';
const execa = require('execa');

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

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

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

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

			throw err;
		});
};

'use strict';
const execa = require('execa');

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

	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('Could not get password');
		}

		return ret;
	});
};