oauth2-riot

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Riot (RSO) OAuth 2.0 support for the PHP League's OAuth 2.0 Client

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# oauth2-riot
Riot (RSO) OAuth 2.0 support for the PHP League's OAuth 2.0 Client

![version](https://img.shields.io/badge/version-1.0.0-blue) [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)

# Riot Provider for OAuth 2.0 Client 
*Thanks to this [(Google Provider)](https://github.com/thephpleague/oauth2-google) used as example to build this provider.*

This package provides Riot OAuth 2.0 support for the PHP League's [OAuth 2.0 Client](https://github.com/thephpleague/oauth2-client).

This package has been tested with this bundle: [https://github.com/knpuniversity/oauth2-client-bundle](https://github.com/knpuniversity/oauth2-client-bundle).  
Please find below a usage example using this bundle.

The following versions of PHP are supported.

* PHP 7.3
* PHP 7.4

Package to authenticate users with Riot ID accounts using RSO (Riot Sign On).

**Note:**
To implement Riot RSO, it will be necessary to have an RSO account client ID and client
secret. These are referred in the RSO documentation : [https://www.riotgames.com/en/DevRel/rso](https://www.riotgames.com/en/DevRel/rso)

## Requirements
Declare parameters below in your knpu_oauth2_client.yaml:
* url_authorization (eg.: https://riot.com/as/authorization.oauth2)
* url_token (eg.: https://riot.com/as/token.oauth2)
* url_user_info (eg.: https://riot.com/idp/userinfo.openid)

Example for knpu_oauth2_client declaration using [https://github.com/knpuniversity/oauth2-client-bundle](https://github.com/knpuniversity/oauth2-client-bundle):

```yaml
# file : app\config\packages\knpu_oauth2_client.yaml

knpu_oauth2_client:
    clients:
        # configure your clients as described here: https://github.com/knpuniversity/oauth2-client-bundle#configuration
        # will create service: "knpu.oauth2.client.foo_bar_oauth"
        # an instance of: KnpU\OAuth2ClientBundle\Client\OAuth2Client
        riot_oauth:
            type: generic
            provider_class: League\OAuth2\Client\Provider\Riot

# optional: a class that extends OAuth2Client
            # client_class: Some\Custom\Client

# optional: if your provider has custom constructor options
            provider_options:
                url_authorization: '%env(URL_AUTHORIZATION)%'
                url_token: '%env(URL_TOKEN)%'
                url_user_info: '%env(URL_USERINFO)%'

# now, all the normal options!
            client_id: '%env(riot_client_id)%'
            client_secret: '%env(riot_client_secret)%'
            redirect_route: connect_riot_check
            redirect_params: {}
```

## Installation

To install, use composer:

```sh
composer require kdefives/oauth2-riot
```

## Usage

Please find a usage example below. Read the README documentation of knpuniversity/oauth2-client-bundle to know how to integrate a provider : [https://github.com/knpuniversity/oauth2-client-bundle](https://github.com/knpuniversity/oauth2-client-bundle)

### Authorization Code Flow example using Symfony 5.2.2 (tested with PHP-7.4)

#### Authenticator declaration

```php
<?php
// app/src/Security/RiotAuthenticator.php

namespace App\Security;

use App\Entity\Player;
use Doctrine\ORM\EntityManagerInterface;
use KnpU\OAuth2ClientBundle\Client\OAuth2ClientInterface;
use KnpU\OAuth2ClientBundle\Security\Authenticator\SocialAuthenticator;
use KnpU\OAuth2ClientBundle\Client\ClientRegistry;
use League\OAuth2\Client\Provider\RiotUser;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\Routing\RouterInterface;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Symfony\Component\Security\Core\User\UserProviderInterface;
use Symfony\Component\Security\Http\Util\TargetPathTrait;

/**
 * Class RiotAuthenticator used for Riot RSO authentication using knpuniversity/oauth2-client-bundle
 * @package App\Security
 */
class RiotAuthenticator extends SocialAuthenticator
{
    use TargetPathTrait;

private $clientRegistry;
    private $em;
    private $router;

public function __construct(ClientRegistry $clientRegistry,
                                EntityManagerInterface $em,
                                RouterInterface $router)
    {
        $this->clientRegistry = $clientRegistry;
        $this->em = $em;
        $this->router = $router;
    }

public function supports(Request $request)
    {
        // continue ONLY if the current ROUTE matches the check ROUTE
        return $request->attributes->get('_route') === 'connect_riot_check';
    }

public function getCredentials(Request $request)
    {
        // this method is only called if supports() returns true

// For Symfony lower than 3.4 the supports method need to be called manually here:
        // if (!$this->supports($request)) {
        //     return null;
        // }

return $this->fetchAccessToken($this->getRiotClient());
    }

public function getUser($credentials, UserProviderInterface $userProvider)
    {
         /** @var RiotUser $riotUser */
        $riotUser = $this->getRiotClient()
            ->fetchUserFromToken($credentials);

// We check we have a matching user in our database, then return the user
        return $this->em->getRepository(Player::class)->findOneBy(
            ['puuid' => $riotUser->getPuuid()]
        );

// If return null, login should fail
        //return null;
    }

/**
     * @return OAuth2ClientInterface
     */
    private function getRiotClient()
    {
        return $this->clientRegistry
            // "facebook_main" is the key used in config/packages/knpu_oauth2_client.yaml
            ->getClient('riot_oauth');
    }

public function onAuthenticationSuccess(Request $request, TokenInterface $token, $providerKey)
    {
        // Get initial target URI before redirection to RSO (login page or refresh token)
        $targetPath = $this->getTargetPath($request->getSession(), $providerKey);

// Redirect to homepage by default
        if (!$targetPath) {
            $targetPath = $this->router->generate('homepage.display');
        }

return new RedirectResponse($targetPath);

// or, on success, let the request continue to be handled by the controller
        //return null;
    }

public function onAuthenticationFailure(Request $request, AuthenticationException $exception)
    {
        //$message = strtr($exception->getMessageKey(), $exception->getMessageData());
        //return new Response($message, Response::HTTP_FORBIDDEN);

// Redirect to homepage
        return new RedirectResponse(
            '/', // might be the site, where users choose their oauth provider
        );
    }

/**
     * Called when authentication is needed, but it's not sent.
     * This redirects to the 'login'.
     * @param Request $request
     * @param AuthenticationException|null $authException
     * @return RedirectResponse
     */
    public function start(Request $request, AuthenticationException $authException = null)
    {
        return new RedirectResponse(
            '/connect/', // might be the site, where users choose their oauth provider
            Response::HTTP_TEMPORARY_REDIRECT
        );
    }
}
```

#### Controller declaration
```php 
<?php
// app/src/Controller/RiotRsoController.php

namespace App\Controller;

use KnpU\OAuth2ClientBundle\Client\ClientRegistry;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;

/**
 * Class RiotRsoController
 * @package App\Controller
 */
class RiotRsoController extends AbstractController
{
    /**
     * Link to this controller to start the "connect" process
     *
     * @Route("/connect", name="connect_riot_start")
     *
     * @param ClientRegistry $clientRegistry
     * @return RedirectResponse
     */
    public function connectAction(ClientRegistry $clientRegistry)
    {
        // on Symfony 3.3 or lower, $clientRegistry = $this->get('knpu.oauth2.registry');

// will redirect to Riot RSO
        return $clientRegistry
            ->getClient('riot_oauth') // key used in config/packages/knpu_oauth2_client.yaml
            ->redirect(
                ['openid'], // the scopes you want to access
                []
            );
    }

/**
     * After going to Riot RSO, you're redirected back here
     * because this is the "redirect_route" you configured
     * in config/packages/knpu_oauth2_client.yaml
     *
     * @Route("/riot-oauth/callback", name="connect_riot_check")
     *
     * @param Request $request
     * @param ClientRegistry $clientRegistry
     */
    public function connectCheckAction(Request $request, ClientRegistry $clientRegistry)
    {
        // ** if you want to *authenticate* the user, then
        // leave this method blank and create a Guard authenticator
        // (read below)

//return new Response("<html>Hello World</html>");
    }
}
```

#### Guard authenticator declaration (security.yaml)
```yaml
# app/config/packages/security.yaml

security:
    # https://symfony.com/doc/current/security.html#where-do-users-come-from-user-providers
    providers:
        # used to reload user from session & other features (e.g. switch_user)
        #in_memory: { memory: ~ }
        app_user_provider:
            entity:
                class: App\Entity\Player
                property: id
    firewalls:
        dev:
            pattern: ^/(_(profiler|wdt)|css|images|js)/
            security: false
        main:
            #anonymous: ~
            anonymous: true
            lazy: true
            provider: app_user_provider

# activate different ways to authenticate
            # https://symfony.com/doc/current/security.html#firewalls-authentication

# https://symfony.com/doc/current/security/impersonating_user.html
           # switch_user: true

guard:
                authenticators:
                    - App\Security\RiotAuthenticator

# Easy way to control access for large sections of your site
    # Note: Only the *first* access control that matches will be used
    access_control:
        - { path: ^/something, role: IS_AUTHENTICATED_REMEMBERED }
        - { path: ^/something-else, role: IS_AUTHENTICATED_REMEMBERED }
        - { path: ^/*, role: IS_AUTHENTICATED_ANONYMOUSLY }
```

#### Entity used for authentication
```php
<?php
// app/src/Entity/Player.php

namespace App\Entity;

use App\Repository\PlayerRepository;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Security\Core\User\UserInterface;

/**
 * @ORM\Entity(repositoryClass=PlayerRepository::class)
 */
class Player implements UserInterface
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue
     * @ORM\Column(type="integer")
     */
    private $id;

/**
     * @ORM\Column(type="string", length=255, unique=true)
     *
     * A PUUID should never change (even if region transfers become a thing for val too)
     */
    private $puuid;

public function getId(): ?int
    {
        return $this->id;
    }

public function getPuuid(): ?string
    {
        return $this->puuid;
    }

public function setPuuid(string $puuid): self
    {
        $this->puuid = $puuid;

return $this;
    }

/**
     * @inheritDoc
     */
    public function getRoles(): array
    {
        //$roles = $this->roles;
        // guarantee every user at least has ROLE_USER
        $roles[] = 'ROLE_USER';

return array_unique($roles);
    }

/**
     * @inheritDoc
     */
    public function getPassword(): ?string
    {
        return null;
    }

/**
     * @inheritDoc
     */
    public function getSalt(): ?string
    {
        return null;
    }

/**
     * @inheritDoc
     */
    public function getUsername(): string
    {
        return $this->puuid;
    }

/**
     * @inheritDoc
     */
    public function eraseCredentials()
    {
        // If you store any temporary, sensitive data on the user, clear it here
        // $this->plainPassword = null;
    }
}

```

## Testing

Tests can be run with:

```sh
composer test
```

Style checks can be run with:

```sh
composer check
```

## How to contribute
If you want to quickly clone, develop and test on your localhost. You can follow this steps below.
Indeed, you must have git and docker (ie. Docker Desktop on Windows) to proceed.
```cli
git clone ...
cd oauth2/riot
docker-compose build
docker-compose up -d php-fpm-riot-oauth2
docker-compose exec php-fpm-riot-oauth2 bash
composer test
```

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