README

The purpose of this bundle is manage refresh tokens with JWT (Json Web Tokens) in an easy way. This bundles uses LexikJWTAuthenticationBundle. At the moment only supports Doctrine ORM.

Prerequisites

This bundle requires Symfony 3.3+ or 4.0+.

If you want to use this bundle with previous Symfony versions, please use 0.2.x releases.

Protip: Though the bundle doesn't enforce you to do so, it is highly recommended to use HTTPS.

Installation

Step 1: Download the Bundle

Add terehinis/jwt-refresh-token-bundle to your composer.json file:

$ composer require "terehinis/jwt-refresh-token-bundle"

or edit composer.json:

// ...
"terehinis/jwt-refresh-token-bundle": "~0.1",
// ...

Step 2: Enable the Bundle

Then, enable the bundle by adding the following line in the app/AppKernel.php file of your Symfony application:

<?php
// app/AppKernel.php

// ...
class AppKernel extends Kernel
{
    public function registerBundles()
    {
        $bundles = array(
            // ...
            new terehinis\JWTRefreshTokenBundle\terehinisJWTRefreshTokenBundle(),
        );
    }

    // ...
}

Step 3: Configure your own routing to refresh token

Open your main routing configuration file (usually app/config/routing.yml) and copy the following four lines at the very beginning of it.

# app/config/routing.yml
terehinis_jwt_refresh_token:
    path:     /api/token/refresh
    defaults: { _controller: terehinis.jwtrefreshtoken:refresh }
# ...

Step 4: Allow anonymous access to refresh token

Add next lines on security.yml file:

# app/config/security.yml
    firewalls:
        refresh:
            pattern:  ^/api/token/refresh
            stateless: true
            anonymous: true
    # ...

    access_control:
        # ...
        - { path: ^/api/token/refresh, roles: IS_AUTHENTICATED_ANONYMOUSLY }
        # ...
# ...

Step 5: Update your schema

With the next command you will create a new table to handle your refresh tokens

php app/console doctrine:schema:update --force

USAGE

Config TTL

You can define Refresh Token TTL. Default value is 1 month. You can change this value adding this line to your config.yml file:

terehinis_jwt_refresh_token:
    ttl: 2592000

Config User identity field

You can change user identity field. Make sure that your model user has getter for this field. Default value is username. You can change this value by adding this line to your config.yml file:

terehinis_jwt_refresh_token:
    user_identity_field: email

Config TTL update

You can expand Refresh Token TTL on refresh. Default value is false. You can change this value adding this line to your config.yml file:

terehinis_jwt_refresh_token:
    ttl_update: true

This will reset the token TTL each time you ask a refresh.

Config Firewall Name

You can define Firewall name. Default value is api. You can change this value adding this line to your config.yml file:

terehinis_jwt_refresh_token:
    firewall: api

Config UserProvider

You can define your own UserProvider. By default we use our custom UserProvider. You can change this value by adding this line to your config.yml file:

terehinis_jwt_refresh_token:
    user_provider: user_provider_service_id

For example, if you are using FOSUserBundle, user_provider_service_id must be set to fos_user.user_provider.username_email.

Use another entity for refresh tokens

You can define your own entity for refresh tokens. Create the entity class extending terehinis\JWTRefreshTokenBundle\Entity\RefreshToken in you own bundle:

namespace MyBundle;

use terehinis\JWTRefreshTokenBundle\Entity\AbstractRefreshToken;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
use Doctrine\ORM\Mapping as ORM;

/**
 * This class override terehinis\JWTRefreshTokenBundle\Entity\RefreshToken to have another table name.
 *
 * @ORM\Table("jwt_refresh_token")
 * @ORM\Entity(repositoryClass="terehinis\JWTRefreshTokenBundle\Entity\RefreshTokenRepository")
 * @UniqueEntity("refreshToken")
 */
class JwtRefreshToken extends AbstractRefreshToken
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * {@inheritdoc}
     */
    public function getId()
    {
        $this->id;
    }
}

Then declare this entity adding this line to your config.yml file:

terehinis_jwt_refresh_token:
    refresh_token_entity: MyBundle\JwtRefreshToken

Use another entity manager

You can tell JWTRefreshTokenBundle to use another entity manager than default one (doctrine.orm.entity_manager).

Just add this line to your config.yml file:

terehinis_jwt_refresh_token:
    entity_manager: my.specific.entity_manager.id

Generating Tokens

When you authenticate through /api/login_check with user/password credentials, LexikJWTAuthenticationBundle now returns a JWT Token and a Refresh Token data.

{
  "token": "eyxxxGciOiJSUzI1NiIsInR5cCI6IkpXUyJ9.eyJleHAiOjE0NDI0MDM3NTgsImVtYWlsIjoid2VibWFzdGVyQGdlc2RpbmV0LmNvbSIsImlhdCI6IjE0NDI0MDM3MzgifQ.bo5pre_v0moCXVOZOj-s85gVnBLzdSdsltPn3XrkmJaE8eaBo_zcU2pnjs4dUc9hhwNZK8PL6SmSNcQuTUj4OMK7sUDfXr62a05Ds-UgQP8B2Kpc-ZOmSts_vhgo6xJNCy8Oub9-pRA_78WzUUxt294w0IArrNlgQAGewk65RSMThOif9G6L7HzBM4ajFZ-kMDypz2zVQea1kry-m-XXKNDbERCSHnMeV3rANN48SX645_WEvwaHy0agChR4hTnThzLof2bShA7j7HmnSPpODxQszS5ZBHdMgTvYhlcWJmwYswCWCTPl3lsqVq_UOFI5_4arpSNlUwZsichqxXVAHX5idZqCWtoaqAbvNQe2IpinYajoXw-MlYKvcN2TLUF_8sy529olLUagf4FCpCO6JFxovv0E7ll9tUOVvx9LlannqV8976q5XCOoXszKonZSH7DhsBlW5Emjv7PailbARZ-hfl4YlamyY2QbnxAswYycfoxqJxbbIKYGA8dlebdvMyC7m9VATnasTuKeEKS3mP5iyDgWALBHNYXm1FM-12zHBdN3PbOgxmy_OBGvk05thYFEf2WVmyedtFHy4TGlI0-otUTAf2swQAXWhKtkLWzokWWF7l5iNzam1kkEgql5EOztXHDZpmdKVHWBVNvN3J5ivPjjJBm6sGusf-radcw",
  "refresh_token": "xxx00a7a9e970f9bbe076e05743e00648908c38366c551a8cdf524ba424fc3e520988f6320a54989bbe85931ffe1bfcc63e33fd8b45d58564039943bfbd8dxxx"
}

This refresh token is persisted in RefreshToken entity. After that, when your JWT valid token expires, if you want to get a new one you can proceed in two ways:

Send you user credentials again to /api/login_check. This generates another JWT with another Refresh Token.
Ask to renew valid JWT with our refresh token. Make a POST call to /api/token/refresh url with refresh token as payload. In this way, you can always get a valid JWT without asking for user credentials. But you must notice if refresh token is still valid. Your refresh token do not change but valid datetime will increase.

curl -X POST -d refresh_token="xxxx4b54b0076d2fcc5a51a6e60c0fb83b0bc90b47e2c886accb70850795fb311973c9d101fa0111f12eec739db063ec09d7dd79331e3148f5fc6e9cb362xxxx" 'http://xxxx/token/refresh'

This call returns a new valid JWT token renewing valid datetime of your refresh token.

Useful Commands

We give you two commands to manage tokens.

Revoke all invalid tokens

If you want to revoke all invalid (datetime expired) refresh tokens you can execute:

php app/console terehinis:jwt:clear

Optional argument is datetime, it deletes all tokens smaller than this datetime:

php app/console terehinis:jwt:clear 2015-08-08

We recommend to execute this command with a cronjob to remove invalid refresh tokens every certain time.

Revoke a token

If you want to revoke a single token you can use this:

php app/console terehinis:jwt:revoke TOKEN

Events

If you want to do something when token is refreshed you can listen for terehinis.refresh_token event.

For example:

<?php

namespace AppBundle\EventListener;

use terehinis\JWTRefreshTokenBundle\Event\RefreshEvent;
use Psr\Log\LoggerInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

class LogListener implements EventSubscriberInterface
{
    private $logger;

    public function __construct(LoggerInterface $logger)
    {
        $this->logger = $logger;
    }

    public function log(RefreshEvent $event)
    {
        $refreshToken = $event->getRefreshToken()->getRefreshToken();
        $user = $event->getPreAuthenticatedToken()->getUser()->getUsername();
        
        $this->logger->debug(sprintf('User "%s" has refreshed it\'s JWT token with refresh token "%s".', $user, $refreshToken));
    }
    
    public static function getSubscribedEvents()
    {
        return array(
            'terehinis.refresh_token' => 'log',
        );
    }
}

terehinis / jwt-refresh-token-bundle

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