digitalcz/openid-connect

PHP implementation of OpenID Connect using symfony/contracts

v1.0.1 2025-07-29 06:58 UTC

Requires

• php: ^8.4
• symfony/cache-contracts: ^3.6
• symfony/http-client-contracts: ^3.6
• web-token/jwt-library: ^4.0

Requires (Dev)

• digitalcz/coding-standard: ^0.3.0
• ergebnis/composer-normalize: ^2.47
• phpstan/phpstan: ^2.1
• phpstan/phpstan-phpunit: ^2.0
• phpstan/phpstan-strict-rules: ^2.0
• phpunit/phpunit: ^12.2
• symfony/cache: ^7.3
• symfony/http-client: ^7.3
• symfony/var-dumper: ^7.3

MIT

• Digital Solutions s.r.o.
• Pavel Stejskal

• symfony
• php
• OpenId
• OpenID Connect
• oidc

README

PHP implementation of OpenID Connect using symfony/contracts

Install

Via Composer

$ composer require digitalcz/openid-connect

Usage

Initialization

Using the OIDC discovery endpoint

use DigitalCz\OpenIDConnect\OidcFactory;
use Symfony\Component\HttpClient\HttpClient;

$httpClient = HttpClient::create();

$oidc = OidcFactory::create(
    httpClient: $httpClient,
    issuer: 'https://auth.example.com',
    clientId: 'my-client-id',
    clientSecret: 'my-client-secret',
    redirectUri: 'https://myapp.example.com/callback',
);

Using manual issuer configuration

use DigitalCz\OpenIDConnect\OidcFactory;
use DigitalCz\OpenIDConnect\Config\IssuerMetadata;
use Symfony\Component\HttpClient\HttpClient;

$httpClient = HttpClient::create();

$issuerMetadata = new IssuerMetadata([
    'authorization_endpoint' => 'https://auth.example.com/authorize',
    'token_endpoint' => 'https://auth.example.com/token',
    'jwks_uri' => 'https://auth.example.com/.well-known/jwks.json',
    'issuer' => 'https://auth.example.com',
]);

$oidc = OidcFactory::create(
    httpClient: $httpClient,
    issuer: $issuerMetadata,
    clientId: 'my-client-id',
    clientSecret: 'my-client-secret',
    redirectUri: 'https://myapp.example.com/callback',
);

Authorization Code flow

Step 1 - Redirect the user to authorization endpoint

$authorizationCode = $oidc->authorizationCode();

$url = $authorizationCode->createAuthorizationUrl([
    'state' => 'random-state',
    'nonce' => 'random-nonce'
]);

// Redirect user to $url

Step 2 - Handle the callback and exchange code for tokens

// Get the authorization code from the callback URL
$code = $_GET['code'];
$nonce = 'random-nonce'; // Same nonce used in step 1

$tokens = $authorizationCode->fetchTokens($code, $nonce);

echo "Access Token: " . $tokens->accessToken() . PHP_EOL;
echo "ID Token: " . $tokens->idToken() . PHP_EOL;
echo "Refresh Token: " . $tokens->refreshToken() . PHP_EOL;

Client Credentials flow

$clientCredentials = $oidc->clientCredentials();
$tokens = $clientCredentials->fetchTokens();

echo "Access Token: " . $tokens->accessToken() . PHP_EOL;

Resource Server (Token Validation)

use DigitalCz\OpenIDConnect\ResourceServer\JwtAccessToken;
use DigitalCz\OpenIDConnect\ResourceServer\OpaqueAccessToken;
use DigitalCz\OpenIDConnect\Util\JWT;

$resourceServer = $oidc->resourceServer();

$accessToken = new JwtAccessToken($jwt);
$validatedToken = $resourceServer->introspect($accessToken);

echo "Token is valid for subject: " . $validatedToken->sub() . PHP_EOL;
echo "Token expires at: " . date('Y-m-d H:i:s', $validatedToken->exp()) . PHP_EOL;

See examples for more complete examples

Testing

$ composer csfix    # fix codestyle
$ composer checks   # run all checks 

# or separately
$ composer tests    # run phpunit
$ composer phpstan  # run phpstan
$ composer cs       # run codesniffer

Contributing

Please see CONTRIBUTING for details.

Security

If you discover any security related issues, please email [e-mail] instead of using the issue tracker.

Credits

• Digital Solutions s.r.o.
• All Contributors

License

The MIT License (MIT). Please see License File for more information.