README

Add custom grants to laravel passport.

Installation

composer require hamedov/passport-grants

Supported passport versions

Usage

• Create a new grant:

We will be using facebook login as an example here

php artisan make:grant Facebook

This will create a new grant class in App\Grants folder

• Specify unique identifier for your grant

protected $identifier = 'facebook';

• Specify The parameters you will be sending in access token request for user authentication instead of username and password

protected $authParams = [
    'jwt_token',
];

The access token request should look like this:

$response = $http->post(env('APP_URL') . '/oauth/token', [
    'form_params' => [
        'grant_type' => 'facebook',
        'client_id' => 'client-id',
        'client_secret' => 'client-secret',
        'jwt_token' => 'facebook access token',
        'scope' => '',
        'guard' => 'api',
    ],
]);

• Next add your authentication logic to getUserEntityByAuthParams method

You will receive an empty instance of the authenticated model as first parameter.

The second parameter is an associative array containing values of parameters specified in authParams property.

• The method implementation should be something like this:

protected function getUserEntityByAuthParams(Model $model, $authParams,
    $guard, $grantType, ClientEntityInterface $clientEntity)
{
    // Do your logic to authenticate the user.
    // Return false or void if authentication fails.
    // This will throw OAuthServerException.
    $facebookAccessToken = $authParams['jwt_token'];
    // Contact facebook server to make sure the token is valid and get the corresponding user profile.
    $profile = file_get_contents('https://graph.facebook.com/me?fields=name,email&access_token='.$facebookAccessToken);
    $profile = (array) json_decode($profile);
    if ( ! isset($profile['email'])) {
        // We cannot identify the user without his email address
        return;
    }
    
    // Retrieve user or any authenticatable model by email or create new one.
    $user = $model->firstOrCreate(['email' => $profile['email']], ['name' => $profile['name']]);

    return new User($user->getAuthIdentifier());
}

• You can use the previous example with any authenticatable entity.

• Add the new grant to grants section of config/auth.php

'grants' => [
    App\Grants\Facebook::class,
],

License

Released under the Mit license, see LICENSE