PHP (Symfony)

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PHP (Symfony)

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This tutorial demonstrates how to add user login to a Symfony application.. We recommend you to Log in to follow this quickstart with examples configured for your account.

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2 minutes

Get a sample configured with your account settings or check it on Github.

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System requirements: PHP 5.6, 7.0 | Symfony 3.*

New to Auth? Learn How Auth0 works, how it integrates with Regular Web Applications and which protocol it uses.

Configure Auth0

Get Your Application Keys

When you signed up for Auth0, a new application was created for you, or you could have created a new one.

Your will need some details about that application to communicate with Auth0. You can get these details from the Application Settings section in the Auth0 dashboard.

You need the following information:

  • Client ID
  • Domain

If you download the sample from the top of this page these details are filled out for you.

If you have more than one application in your account, the sample comes with the values for your Default App.

App Dashboard

Configure Callback URLs

A callback URL is a URL in your application where Auth0 redirects the user after they have authenticated.

You need to whitelist the callback URL for your app in the Allowed Callback URLs field in your Application Settings. If you do not set any callback URL, your users will see a mismatch error when they log in.

If you are following along with the sample project you downloaded from the top of this page, you should set the Callback URL to http://localhost:3000/callback.

Configure Symfony to Use Auth0

Using HWIOAuthBundle for Authentication

If you have used Symfony before, you are probably already familiar with the HWIOAuth Bundle. We'll be using it to integrate the Symfony WebApp with Auth0 and achieve Single Sign On with a few simple steps.

Add HWIOAuthBundle to composer.json.

// composer.json

"minimum-stability": "dev",
"prefer-stable": true,
"require": {
    // ...
    "guzzlehttp/psr7": "^1.4",
    "php-http/curl-client": "^1.7",
    "php-http/httplug-bundle": "^1.7",
    "hwi/oauth-bundle": ">=0.6",
},

and run composer update.

This sample is using curl-client as PHP HTTP client implementation for httplug-bundle, you can use the PHP HTTP client implementation you want.

Enable the Bundle

// app/AppKernel.php

public function registerBundles()
{
    $bundles = array(
        // ...
        new Http\HttplugBundle\HttplugBundle(),
        new HWI\Bundle\OAuthBundle\HWIOAuthBundle(),
    );
}

Configure the Routes

Add the following routes at the beginning of app/config/routing.yml

hwi_oauth_redirect:
    resource: "@HWIOAuthBundle/Resources/config/routing/redirect.xml"
    prefix:   /connect

hwi_oauth_login:
    resource: "@HWIOAuthBundle/Resources/config/routing/login.xml"
    prefix:   /login

auth0_login:
    path:    /auth0/callback

auth0_logout:
    path: /auth0/logout

Create an Auth0 Resource Owner

You need to create an Auth0 resource owner to enable HWIOAuthBundle to connect to Auth0.

Add this to your src/AppBundle/Auth0ResourceOwner.php

<?php

namespace AppBundle;

use Dotenv\Dotenv;

use Symfony\Component\OptionsResolver\Options;
use Symfony\Component\OptionsResolver\OptionsResolver;

use HWI\Bundle\OAuthBundle\OAuth\ResourceOwner\GenericOAuth2ResourceOwner;

class Auth0ResourceOwner extends GenericOAuth2ResourceOwner
{
    /**
     * {@inheritdoc}
     */
    protected $paths = array(
        'identifier' => 'user_id',
        'nickname' => 'nickname',
        'realname' => 'name',
        'email' => 'email',
        'profilepicture' => 'picture',
    );

    /**
     * {@inheritdoc}
     */
    public function getAuthorizationUrl($redirectUri, array $extraParameters = array())
    {
        return parent::getAuthorizationUrl($redirectUri, array_merge(array(
            'audience' => $this->options['audience'],
        ), $extraParameters));
    }

    /**
     * {@inheritdoc}
     */
    protected function configureOptions(OptionsResolver $resolver)
    {
        parent::configureOptions($resolver);

        $dotenv = new Dotenv();

        if (!getenv('AUTH0_DOMAIN')) {
            $dotenv->load(__DIR__ . '/../../.env');
        }

        $resolver->setDefaults(array(
            'authorization_url' => '{base_url}/authorize',
            'access_token_url' => '{base_url}/oauth/token',
            'infos_url' => '{base_url}/userinfo',
            'audience' => 'https://'.getenv('AUTH0_DOMAIN').'/userinfo',
        ));

        $resolver->setRequired(array(
            'base_url',
        ));

        $normalizer = function (Options $options, $value) {
            return str_replace('{base_url}', $options['base_url'], $value);
        };

        $resolver->setNormalizer('authorization_url', $normalizer);
        $resolver->setNormalizer('access_token_url', $normalizer);
        $resolver->setNormalizer('infos_url', $normalizer);
    }
}

Configure the Resource Owner

Add this to your app/config/config.yml

hwi_oauth:
    firewall_names: [secured_area]
    resource_owners:
        auth0:
            type:                oauth2
            class:               'AppBundle\Auth0ResourceOwner'
            base_url:            https://YOUR_AUTH0_DOMAIN
            client_id:           YOUR_CLIENT_ID
            client_secret:       YOUR_CLIENT_SECRET
            redirect_uri:        http://yourUrl/auth0/callback
            scope: "openid profile"

User Provider

You can create a user provider that implements OAuthAwareUserProviderInterface and set it up in the next step, or you can use one of the predefined services that HWIOAuthBundle provides.

Configure the OAuth Firewall

This is where you set the filters to select which pages require authentication or authorization. You can read more on how to configure this at the Symfony security docs.

This is a basic example that allows anonymous users and then restricts access to the /secured route. It doesn't store the users in a DB.

This file is app/config/security.yml:

security:
    providers:
        hwi:
            id: hwi_oauth.user.provider

    firewalls:
        secured_area:
            anonymous: ~
            oauth:
                resource_owners:
                    auth0: "/auth0/callback"
                login_path:        /login
                use_forward:       false
                failure_path:      /login

                oauth_user_provider:
                    service: hwi_oauth.user.provider
            logout:
                path:   /auth0/logout
                target: /

    access_control:
        - { path: ^/login, roles: IS_AUTHENTICATED_ANONYMOUSLY }
        - { path: ^/secured, roles: ROLE_OAUTH_USER }

Notice that we need to identify the user provided selected in the step before both in the providers and in the firewall.

Trigger Authentication

Set the following in app/resources/views/index.html.twig

{% if app.user %}
    Welcome, {{ app.user.username }}!<br/>
    {{ dump(app.user) }}
    <a href="{{ url('secured') }}">Protected route</a>
    <a href="{{ logout_url("secured_area") }}">
        <button>Logout</button>
    </a>
{% else %}
    <h1>Symfony Auth0 Quickstart</h1>
    <a href="/connect/auth0"><button>Login</button></a>
{% endif %}
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