userdb.js

var hash = require('./hash.js');
var fs = require('fs'), ini = require('ini');

var defaultCfgPath = './usrperm.cfg';

exports.usrExits = function (name) {
	var cfgtxt = fs.readFileSync(defaultCfgPath, 'utf-8');
	var config = ini.parse(cfgtxt);
	return config.hasOwnProperty(name);
};

exports.updateUsrPass = function (name, passwd) {
	fs.closeSync(fs.openSync(defaultCfgPath, 'a')) // touch
	var cfgtxt = fs.readFileSync(defaultCfgPath, 'utf-8');
	var config = ini.parse(cfgtxt);
	var salt = hash.genSalt();

	if (config[name] == undefined) {
		console.log('username does not exist, creating...');
		config[name] = {};
	}

	config[name]['hash'] = hash.hashPasswd(name, passwd, salt);
	config[name]['salt'] = salt;
	config[name]['perm'] = ['default'];
	fs.writeFileSync(defaultCfgPath, ini.stringify(config));
};

exports.getUser = function (name) {
	var cfgtxt = fs.readFileSync(defaultCfgPath, 'utf-8');
	if (!exports.usrExits(name))
		throw Error('User does not exists.');

	return ini.parse(cfgtxt)[name];
};