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<?php |
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declare(strict_types=1); |
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namespace TMV\OpenIdClient\Issuer\Metadata\Provider; |
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use function array_key_exists; |
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use Http\Discovery\Psr17FactoryDiscovery; |
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use Http\Discovery\Psr18ClientDiscovery; |
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use Psr\Http\Client\ClientExceptionInterface; |
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use Psr\Http\Client\ClientInterface; |
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use Psr\Http\Message\RequestFactoryInterface; |
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use Psr\Http\Message\UriFactoryInterface; |
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use function rtrim; |
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use function strpos; |
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use TMV\OpenIdClient\Exception\RuntimeException; |
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use function TMV\OpenIdClient\parse_metadata_response; |
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final class DiscoveryProvider implements DiscoveryProviderInterface |
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{ |
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private const OIDC_DISCOVERY = '/.well-known/openid-configuration'; |
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private const OAUTH2_DISCOVERY = '/.well-known/oauth-authorization-server'; |
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/** @var ClientInterface */ |
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private $client; |
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/** @var RequestFactoryInterface */ |
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private $requestFactory; |
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/** @var UriFactoryInterface */ |
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private $uriFactory; |
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public function __construct( |
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?ClientInterface $client = null, |
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?RequestFactoryInterface $requestFactory = null, |
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?UriFactoryInterface $uriFactory = null |
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) { |
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$this->client = $client ?: Psr18ClientDiscovery::find(); |
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$this->requestFactory = $requestFactory ?: Psr17FactoryDiscovery::findRequestFactory(); |
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$this->uriFactory = $uriFactory ?: Psr17FactoryDiscovery::findUrlFactory(); |
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} |
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public function discovery(string $url): array |
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{ |
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$uri = $this->uriFactory->createUri($url); |
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$uriPath = $uri->getPath() ?: '/'; |
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if (false !== strpos($uriPath, '/.well-known/')) { |
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return $this->fetchOpenIdConfiguration((string) $uri); |
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} |
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$uris = [ |
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$uri->withPath(rtrim($uriPath, '/') . self::OIDC_DISCOVERY), |
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$uri->withPath('/' === $uriPath |
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? self::OAUTH2_DISCOVERY |
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: self::OAUTH2_DISCOVERY . $uriPath), |
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]; |
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foreach ($uris as $wellKnownUri) { |
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try { |
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return $this->fetchOpenIdConfiguration((string) $wellKnownUri); |
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} catch (RuntimeException $e) { |
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} |
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} |
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throw new RuntimeException('Unable to fetch provider metadata'); |
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} |
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private function fetchOpenIdConfiguration(string $uri): array |
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{ |
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$request = $this->requestFactory->createRequest('GET', $uri) |
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->withHeader('accept', 'application/json'); |
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try { |
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$data = parse_metadata_response($this->client->sendRequest($request)); |
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} catch (ClientExceptionInterface $e) { |
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throw new RuntimeException('Unable to fetch provider metadata', 0, $e); |
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} |
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if (! array_key_exists('issuer', $data)) { |
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throw new RuntimeException('Invalid metadata content, no "issuer" key found'); |
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} |
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return $data; |
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} |
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} |
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thomasvargiu /
php-openid-client
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