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@hatxor/passport-google-verify-token

v1.0.0

Published

Google Token strategy for Passport, let's you validate the user token server side, usefull for mobile app Google authentication for example. The validation is done by the official Google Auth library for NodeJs.

Downloads

6

Readme

@hatxor/passport-google-verify-token

This project is a fork of Abdou BOUROUBI' Passport Google Verify Token as it seems abandoned. If Abdou' repository is ever reactivated, this will become obsolete.

Passport strategy for authenticating with Google access tokens using the OAuth 2.0 API.

This module lets you authenticate using Google in your Node.js applications. By plugging into Passport, Google authentication can be easily and unobtrusively integrated into any application or framework that supports Connect-style middleware, including Express.

Installation

$ npm install @hatxor/passport-google-verify-token

Usage

Configure Strategy

The Google authentication strategy leverages the Google Auth Library for Node.js to authenticates users. Applications must supply a verify callback which accepts the idToken or access_token coming from the user to be authenticated, and then calls the done callback supplying a parsedToken (with all its information in visible form) and the googleId.

var GoogleTokenStrategy = require("passport-google-verify-token").Strategy;

passport.use(new GoogleTokenStrategy({
      clientID: '12345.abcdefghijkl.apps.googleusercontent.com'// Specify the CLIENT_ID of the backend
     // If other clients (such as android / ios apps) also access the google api:
     // audience: [CLIENT_ID_FOR_THE_BACKEND, CLIENT_ID_ANDROID, CLIENT_ID_IOS, CLIENT_ID_SPA]
    },
    function(parsedToken, googleId, done) {
      User.findOrCreate(..., function (err, user) {
        done(err, user);
      });
    }
  ));

When verifying an idToken, the Google Auth library verifyIdToken() function is called, and the authentication is finished. When an access_token is passed, however, two steps have to be made:

  1. The Google Auth getTokenInfo() function is called. This is to verify that the token is valid and not expired.
  2. A request to /oauth2/v3/userinfo is sent. access_tokens require this second step in order to get the same user information idTokens return.

Authenticate Requests

Use passport.authenticate(), specifying the 'google-verify-token' strategy, to authenticate requests.

app.post('/auth/google/token',
  passport.authenticate('google-verify-token'),
  function (req, res) {
    // do something with req.user
    res.send(req.user? 200 : 401);
  }
);

Or using Sails framework:

// api/controllers/AuthController.js
module.exports = {
  facebook: function(req, res) {
    passport.authenticate('google-verify-token', function(error, user, info) {
      // do stuff with user
      res.ok();
    })(req, res);
  }
};

Client Requests

Clients can send requests to routes that use google-verify-token authentication using query parms, body, or HTTP headers. Clients will need to transmit the access_token or the id_token that are received from Google after user logs in.

Sending access_token as a Query parameter

GET /auth/google/token?access_token=<TOKEN_HERE>

Sending access token as an HTTP header

Clients can choose to send the access token using the Oauth2 Bearer token (RFC 6750) compliant format

GET /resource HTTP/1.1
Host: server.example.com
Authorization: Bearer base64_access_token_string

Sending access token as an HTTP body

Clients can transmit the access token via the body

POST /resource HTTP/1.1
Host: server.example.com

access_token=base64_access_token_string

Credits

Thanks

This project is forked from Abdou BOUROUBI' Passport Google Verify Token as it seems abandoned.

License

The MIT License (MIT)

Copyright (c) 2024 Andrés Téllez

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.