passmng/app.js

Manage your passwords

#!/usr/bin/env node

//inital help
console.log('Starting Password Manager');
console.log('Commands');
console.log('create : Create a new account');
console.log('get : Get an existing account');
console.log('--help : Exibe ajuda');

//requires
var crypto = require('crypto-js')
var storage = require('node-persist');
storage.initSync();

//commands with argv
var argv = require('yargs')
	.command('create', 'Create a new account', function (yargs) {
		yargs.options({
			name: {
				demand: true,
				alias: 'n',
				description: 'Account name (eg: Twitter, Facebook)',
				type: 'string'
			},
			username: {
				demand: true,
				alias: 'u',
				description: 'Account username or email',
				type: 'string'
			},
			password: {
				demand: true,
				alias: 'p',
				description: 'Account password',
				type: 'string'
			},
			masterPassword: {
				demand: true,
				alias: 'm',
				description: 'Master password',
				type: 'string'
			}
		}).help('help');
	})
	.command('get', 'Get an existing account', function (yargs) {
		yargs.options({
			name: {
				demand: true,
				alias: 'n',
				description: 'Account name (eg: Twitter, Facebook)',
				type: 'string'
			},
			masterPassword: {
				demand: true,
				alias: 'm',
				description: 'Master password',
				type: 'string'
			}
		}).help('help');
	})
	.help('help')
	.argv;
var command = argv._[0];

//get accounts in persist and decrypted in js object
function getAccounts (masterPassword) {
	// use getItemSync to fetch accounts
	var encryptedAccount = storage.getItemSync('accounts');
	var accounts = [];

	// decrypt
	if (typeof encryptedAccount !== 'undefined') {
		var bytes = crypto.AES.decrypt(encryptedAccount, masterPassword);
		accounts = JSON.parse(bytes.toString(crypto.enc.Utf8));
	}

	// return accounts array
	return accounts;
}

//encrypt accounts in JSON and save in persist
function saveAccounts (accounts, masterPassword) {
	// encrypt accounts
	var encryptedAccounts = crypto.AES.encrypt(JSON.stringify(accounts), masterPassword);

	// setItemSync
	storage.setItemSync('accounts', encryptedAccounts.toString());

	// return accounts
	return accounts;
}

// create account and passing for the saveAccounts function
function createAccount (account, masterPassword) {
	var accounts = getAccounts(masterPassword);

	accounts.push(account);

	saveAccounts(accounts, masterPassword);

	return account;
}

// get accounts passing for getAccounts function
function getAccount (accountName, masterPassword) {
	var accounts = getAccounts(masterPassword)
	var matchedAccount;

	accounts.forEach(function (account) {
		if (account.name === accountName) {
			matchedAccount = account;
		}
	});

	return matchedAccount;
}

//logic for save, get and show accounts
if (command === 'create') {
	try {
    var createdAccount = createAccount({
  		name: argv.name,
  		username: argv.username,
  		password: argv.password
  	}, argv.masterPassword);
  	console.log('Account created!');
  	console.log(createdAccount);
	} catch (e) {
	  console.log("Unable to create account.");
	}
} else if (command === 'get') {
	try {
    var fetchedAccount = getAccount(argv.name, argv.masterPassword);

  	if (typeof fetchedAccount === 'undefined') {
  		console.log('Account not found');
  	} else {
  		console.log('Account found!');
  		console.log(fetchedAccount);
  	}
	} catch (e) {
	  console.log('Unable to fetche account.');
	}
}