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https://github.com/eggjs/egg-passport

passport plugin for egg
https://github.com/eggjs/egg-passport

egg egg-passport egg-plugin

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passport plugin for egg

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# egg-passport



[![NPM version][npm-image]][npm-url]

[![build status][travis-image]][travis-url]

[![Test coverage][codecov-image]][codecov-url]

[![David deps][david-image]][david-url]

[![Known Vulnerabilities][snyk-image]][snyk-url]

[![npm download][download-image]][download-url]



[npm-image]: https://img.shields.io/npm/v/egg-passport.svg?style=flat-square

[npm-url]: https://npmjs.org/package/egg-passport

[travis-image]: https://img.shields.io/travis/eggjs/egg-passport.svg?style=flat-square

[travis-url]: https://travis-ci.org/eggjs/egg-passport

[codecov-image]: https://img.shields.io/codecov/c/github/eggjs/egg-passport.svg?style=flat-square

[codecov-url]: https://codecov.io/github/eggjs/egg-passport?branch=master

[david-image]: https://img.shields.io/david/eggjs/egg-passport.svg?style=flat-square

[david-url]: https://david-dm.org/eggjs/egg-passport

[snyk-image]: https://snyk.io/test/npm/egg-passport/badge.svg?style=flat-square

[snyk-url]: https://snyk.io/test/npm/egg-passport

[download-image]: https://img.shields.io/npm/dm/egg-passport.svg?style=flat-square

[download-url]: https://npmjs.org/package/egg-passport



passport plugin for egg, base on [passportjs](http://passportjs.org).



## Install



```bash

$ npm i egg-passport

```



## Usage



### enable passport plugin



```js

// config/plugin.js

exports.passport = {

  enable: true,

  package: 'egg-passport',

};

```



### Using Github and Twitter strategy



```js

// config/config.default.js

exports.passportGithub = {

  key: 'my oauth2 clientID',

  secret: 'my oauth2 clientSecret',

};



exports.passportTwitter = {

  key: 'my oauth1 consumerKey',

  secret: 'my oauth1 consumerSecret',

};

```



### Authenticate Requests



Use `app.passport.mount(strategy[, options])`, specifying the `'github'` and `'twitter'` strategy, to authenticate requests.



```js

// app/router.js

module.exports = app => {

  app.get('/', 'home.index');



  // authenticates routers

  app.passport.mount('github');

  // this is a passport router helper, it's equal to the below codes

  //

  // const github = app.passport.authenticate('github');

  // app.get('/passport/github', github);

  // app.get('/passport/github/callback', github);



  // custom options.login url and options.successRedirect

  app.passport.mount('twitter', {

    loginURL: '/account/twitter',

    // auth success redirect to /

    successRedirect: '/',

  });

};

```



### Verify and store user



Use `app.passport.verify(async (ctx, user) => {})` hook:



```js

// app.js

module.exports = app => {

  app.passport.verify(async (ctx, user) => {

    // check user

    assert(user.provider, 'user.provider should exists');

    assert(user.id, 'user.id should exists');



    // find user from database

    //

    // Authorization Table

    // column   | desc

    // ---      | --

    // provider | provider name, like github, twitter, facebook, weibo and so on

    // uid      | provider unique id

    // user_id  | current application user id

    const auth = await ctx.model.Authorization.findOne({

      uid: user.id,

      provider: user.provider,

    });

    const existsUser = await ctx.model.User.findOne({ id: auth.user_id });

    if (existsUser) {

      return existsUser;

    }

    // call user service to register a new user

    const newUser = await ctx.service.user.register(user);

    return newUser;

  });

};

```



## How to develop an `egg-passport-${provider}` plugin



See example: [egg-passport-twitter](https://github.com/eggjs/egg-passport-twitter).



- Plugin dependencies on [egg-passport](https://github.com/eggjs/egg-passport) to use `app.passport` APIs.



```json

// package.json

{

  "eggPlugin": {

    "name": "passportTwitter",

    "dependencies": [

      "passport"

    ]

  },

}

```



- Define config and set default values



**Must use `key` and `secret` instead of `consumerKey|clientID` and `consumerSecret|clientSecret`.**



```js

// config/config.default.js

exports.passportTwitter: {

  key: '',

  secret: '',

  callbackURL: '/passport/twitter/callback',

};

```



- Init `Strategy` in `app.js` and format user in `verify callback`



```js

// app.js

const debug = require('debug')('egg-passport-twitter');

const assert = require('assert');

const Strategy = require('passport-twitter').Strategy;



module.exports = app => {

  const config = app.config.passportTwitter;

  // must set passReqToCallback to true

  config.passReqToCallback = true;

  assert(config.key, '[egg-passport-twitter] config.passportTwitter.key required');

  assert(config.secret, '[egg-passport-twitter] config.passportTwitter.secret required');

  // convert to consumerKey and consumerSecret

  config.consumerKey = config.key;

  config.consumerSecret = config.secret;



  // register twitter strategy into `app.passport`

  // must require `req` params

  app.passport.use('twitter', new Strategy(config, (req, token, tokenSecret, params, profile, done) => {

    // format user

    const user = {

      provider: 'twitter',

      id: profile.id,

      name: profile.username,

      displayName: profile.displayName,

      photo: profile.photos && profile.photos[0] && profile.photos[0].value,

      token,

      tokenSecret,

      params,

      profile,

    };

    debug('%s %s get user: %j', req.method, req.url, user);

    // let passport do verify and call verify hook

    app.passport.doVerify(req, user, done);

  }));

};

```



- That's all!



## APIs



### extent `application`



- `app.passport.mount(strategy, options)`: Mount the login and the login callback routers to use the given `strategy`.

- `app.passport.authenticate(strategy, options)`: Create a middleware that will authorize a third-party account using the given `strategy` name, with optional `options`.

- `app.passport.verify(handler)`: Verify authenticated user

- `app.passport.serializeUser(handler)`: Serialize user before store into session

- `app.passport.deserializeUser(handler)`: Deserialize user after restore from session



### extend `context`



- `ctx.user`: get the current authenticated user

- `ctx.isAuthenticated()`: Test if request is authenticated

- `* ctx.login(user[, options])`: Initiate a login session for `user`.

- `ctx.logout()`: Terminate an existing login session



## Unit Tests



This plugin has includes some mock methods to helper you writing unit tests more conveniently.



### `app.mockUser([user])`: Mock an authenticated user



```js

const mm = require('egg-mock');



describe('mock user demo', () => {

  let app;

  before(() => {

    app = mm.app();

    return app.ready();

  });

  after(() => app.close());



  afterEach(mm.restore);



  it('should show authenticated user info', () => {

    app.mockUser();

    return request(app.callback())

      .get('/')

      .expect(/user name: mock_name/)

      .expect(200);

  });

});

```



### `app.mockUserContext([user])`: Mock a context instance with authenticated user



```js

it('should get authenticated user and call service', async () => {

  const ctx = app.mockUserContext();

  const result = await ctx.service.findUser({ id: ctx.user.id });

  assert(result.user.id === ctx.user.id);

});

```



## Questions & Suggestions



Please open an issue [here](https://github.com/eggjs/egg/issues).



## License



[MIT](LICENSE)