Oauthifizer NPM

oauthifizer

Simple example project is available at https://github.com/vedi/restifizer-example

In several projects, where I needed to implement user authentication, I used almost the same pease of code. It's completely based on passport and its strategies, but it allows us to critically simplify the integration and supporting of the project.

oauthifizer by itself it's a glue between passport, its strategies, oauth2orize on one hand and your application, which should keep be clean and simple, on the other hand. Again oauthifizer is not bound to any exact data model or tech of storing data, you should do it by your own, implementing delegate.

The steps of integration

Implement your delegate with the following structure:

function AuthDelegate() {
}

util.inherits(AuthDelegate, Object);

/**
 * Get user object by login and password
 * @param login
 * @param password
 * @param callback receives user model if found, false - if not found
 */
AuthDelegate.prototype.findUserByLoginAndPassword = function(login, password, callback) {
  return callback(null, {login: "login"});
};

/**
 * Get client object by id and secret
 * @param clientId
 * @param clientSecret
 * @param callback client model if found, false - if not found
 */
AuthDelegate.prototype.findClientByIdAndSecret = function(clientId, clientSecret, callback) {
  return callback(null, {clientId: clientId, clientSecret: clientSecret});
};

/**
 * Get user object by token
 * @param token
 * @param callback receives object containing user model as `obj` and additional `info` object if found, false - if not found
 */
AuthDelegate.prototype.findUserByAccessToken = function(token, callback) {
  return callback(null, {obj: {login: "login"}, info: {}});
};

/**
 * Get user object by refreshToken
 * @param token
 * @param callback receives user model if found, false - if not found
 */
AuthDelegate.prototype.findUserByRefreshToken = function(token, callback) {
  return callback(null, {login: "login"});
};

/**
 * Clean up tokens for user and client
 * @param user
 * @param client
 * @param callback receives no params
 */
AuthDelegate.prototype.cleanUpTokensByUserAndClient = function(user, client, callback) {
  callback();
};

/**
 * Create tokens for user and client
 * @param user
 * @param client
 * @param scope
 * @param tokenValue
 * @param refreshTokenValue
 * @param callback receives no params
 */
AuthDelegate.prototype.createTokensByUserAndClient = function (user, client, scope, tokenValue, refreshTokenValue, callback) {
  callback();
};

/**
 * Get additional token info.
 * @param context object, containing client, scope, tokenValue, refreshTokenValue, user
 * @returns {Object} an arbitrary object
 */
AuthDelegate.prototype.getTokenInfo = function (context) {
  return {};
};

/**
 * Generate token value string.
 * @returns {Object} tokenValue
 */
AuthDelegate.prototype.generateTokenValue = function () {
  return 'xxx';
};

Initialize OAuthifizer

var OAuthifizer = require('oauthifizer');
app.use(OAuthifizer.passport.initialize()); //  we assume you use `express`
var oAuth2 = new OAuthifizer(new AuthDelegate()); // replace `AuthDelegate` with your delegate

Add a route for authentication

app.route('/oauth')
  .post(oAuth2.getToken())  //  we assume you use `express` v4.x
;

Add auth "gates" in every route you need:

var passport = require('oauthifizer').passport;

router.get('/',
  passport.authenticate('bearer', { session: false }),
  function (req, res) {
    res.send('respond with a resource');
  }
);

That's all.

How to test it

I use httpie (https://github.com/jakubroztocil/httpie) as a command line tool to test the servers. You can use any, but all the examples are created with syntax of httpie. Anyway it's recognizable.

Try to get secured resource (users in my case):

$ http localhost:3000/users

HTTP/1.1 401 Unauthorized
Connection: keep-alive
Date: Fri, 22 Aug 2014 05:43:32 GMT
Transfer-Encoding: chunked
WWW-Authenticate: Bearer realm="Users"
X-Powered-By: Express

Unauthorized

Authenticate:

$ http POST localhost:3000/oauth grant_type=password client_id=app client_secret=secret username=login password=password

HTTP/1.1 200 OK
Cache-Control: no-store
Connection: keep-alive
Content-Type: application/json
Date: Fri, 22 Aug 2014 05:46:08 GMT
Pragma: no-cache
Transfer-Encoding: chunked
X-Powered-By: Express

{
    "access_token": "xxx", 
    "refresh_token": "xxx", 
    "token_type": "bearer"
}

Try to get secured resource (users in my case) with token:

$ http localhost:3000/users Authorization:'Bearer xxx'

HTTP/1.1 200 OK
Connection: keep-alive
Content-Length: 23
Content-Type: text/html; charset=utf-8
Date: Fri, 22 Aug 2014 05:50:03 GMT
ETag: "-985940870"
X-Powered-By: Express

respond with a resource