@webgap/token/lib/hat.js

WebGAP Tokenizer module. Handles JWT encoding / decoding features.

/**
 * (C) Copyright 2014 WebGAP (http://www.webgap.eu/).
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Created by: ManuelMartins
 * Created on: 10-11-2015
 *
 */

"use strict";

var AbstractAlgorithm = require('./abstract.js');
var hat = require('hat');
var util = require('util');

/**
 * Token utilities
 *
 * @constructor
 */
function HatAlgorithm() {
  HatAlgorithm.super_.apply(this, arguments);
  this.ALGORITHM = 'HAT';
}

/* inherit AbstractAlgorithm Module */
util.inherits(HatAlgorithm, AbstractAlgorithm);


/**
 * {@inheritDoc}
 */
HatAlgorithm.prototype.encode = function (data) {
  return hat(256);
};

/**
 * {@inheritDoc}
 */
HatAlgorithm.prototype.decode = function (token, complete) {
  // it is an authentication token, has no meaning
  return token;
};

/**
 * {@inheritDoc}
 */
HatAlgorithm.prototype.generateJWTObject = function (token) {
  return token;
};

/**
 * {@inheritDoc}
 */
HatAlgorithm.prototype.isValid = function (token) {
  return token ? true : false;
};

module.exports = HatAlgorithm;