Kyle Password Manager

app.js

console.log('Password Manager started');

var storage = require('node-persist');
var crypto = require('crypto-js');
var argv = require('yargs')
    .command('create', 'Create a new account', function(yargs){
        return yargs.options({
            name: {
                demand: true,
                alias: 'n',
                description: 'The account name',
                type: 'string'
            },
            username: {
                demand: true,
                alias: 'u',
                description: 'The account\'s username',
                type: 'string'
            },
            password: {
                demand: true,
                alias: 'p',
                description: 'The account\'s password',
                type: 'string'
            },
            masterPassword: {
                demand: true,
                alias: 'm',
                description: 'Your password manager password',
                type: 'string'
            }

        }).help('help');
    })
    .command('get', 'Retrieve an account', function(yargs){
        return yargs.options({
            name: {
                demand: true,
                alias: 'n',
                description: 'The name of the account',
                type: 'string'
            },
            masterPassword: {
                demand: true,
                alias: 'm',
                description: 'Your password manager password',
                type: 'string'
            }
        }).help('help');
    })
    .argv;

//Initialize persist storage
storage.initSync();

//Command line options
function getAccounts(masterPassword){
    //Fetch the accounts object
    var accountsEncrypted = storage.getItemSync('accounts');
    var accounts = [];

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

    //return
    return accounts
}

function saveAccounts(accounts, masterPassword){
    var accountsEncrypted = crypto.AES.encrypt(accounts, masterPassword);
    storage.setItemSync('accounts', accountsEncrypted.toString());
}

function createAccount(account, masterPassword){
    var accounts = getAccounts(masterPassword);

    accounts.push(account);
    accounts = JSON.stringify(accounts);

    saveAccounts(accounts, masterPassword);

    return account
}

function getAccount(accountName, masterPassword){
    var accounts = getAccounts(masterPassword)
    var matchedAccount;

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

    return matchedAccount;
}

//Run what the command line options say to
var command = argv._[0];
if(command === 'create'){
    var newAccount = createAccount({
                        name: argv.name,
                        username: argv.username,
                        password: argv.password,
    }, argv.masterPassword);
    console.log(newAccount);
} else if(command === 'get'){
    var foundAccount = getAccount(argv.name, argv.masterPassword);
    if(typeof foundAccount === 'undefined'){
        console.log('Account not found.')
    } else {
        console.log(foundAccount);
    }
}