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<?php |
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declare(strict_types=1); |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2018 Spomky-Labs |
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* |
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* This software may be modified and distributed under the terms |
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* of the MIT license. See the LICENSE file for details. |
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*/ |
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namespace OAuth2Framework\Component\Server\TokenEndpoint\AuthenticationMethod; |
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use OAuth2Framework\Component\Server\Core\Client\Client; |
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use OAuth2Framework\Component\Server\Core\Client\ClientId; |
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use OAuth2Framework\Component\Server\Core\DataBag\DataBag; |
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use Psr\Http\Message\ServerRequestInterface; |
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final class ClientSecretBasic implements TokenEndpointAuthenticationMethod |
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{ |
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/** |
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* @var string |
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*/ |
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private $realm; |
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/** |
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* @var int |
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*/ |
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private $secretLifetime; |
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/** |
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* ClientSecretBasic constructor. |
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* |
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* @param string $realm |
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* @param int $secretLifetime |
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*/ |
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public function __construct(string $realm, int $secretLifetime = 0) |
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{ |
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if ($secretLifetime < 0) { |
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throw new \InvalidArgumentException('The secret lifetime must be at least 0 (= unlimited).'); |
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} |
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$this->realm = $realm; |
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$this->secretLifetime = $secretLifetime; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getSchemesParameters(): array |
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{ |
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return [ |
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sprintf('Basic realm="%s",charset="UTF-8"', $this->realm), |
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]; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function findClientId(ServerRequestInterface $request, &$client_credentials = null): ? ClientId |
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{ |
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$authorization_headers = $request->getHeader('Authorization'); |
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if (0 < count($authorization_headers)) { |
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foreach ($authorization_headers as $authorization_header) { |
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$clientId = $this->findClientIdAndCredentialsInAuthorizationHeader($authorization_header, $client_credentials); |
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if (null !== $clientId) { |
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return $clientId; |
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} |
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} |
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} |
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return null; |
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} |
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/** |
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* @param $authorization_header |
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* @param null $client_credentials |
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* |
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* @return ClientId|null |
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*/ |
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private function findClientIdAndCredentialsInAuthorizationHeader($authorization_header, &$client_credentials = null) |
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{ |
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if ('basic ' === mb_strtolower(mb_substr($authorization_header, 0, 6, '8bit'), '8bit')) { |
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list($client_id, $client_secret) = explode(':', base64_decode(mb_substr($authorization_header, 6, mb_strlen($authorization_header, '8bit') - 6, '8bit'))); |
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if (!empty($client_id) && !empty($client_secret)) { |
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$client_credentials = $client_secret; |
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return ClientId::create($client_id); |
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} |
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} |
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return null; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function checkClientConfiguration(DataBag $command_parameters, DataBag $validated_parameters): DataBag |
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{ |
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$validated_parameters = $validated_parameters->with('client_secret', $this->createClientSecret()); |
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$validated_parameters = $validated_parameters->with('client_secret_expires_at', (0 === $this->secretLifetime ? 0 : time() + $this->secretLifetime)); |
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return $validated_parameters; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function isClientAuthenticated(Client $client, $client_credentials, ServerRequestInterface $request): bool |
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{ |
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return hash_equals($client->get('client_secret'), $client_credentials); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getSupportedAuthenticationMethods(): array |
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{ |
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return ['client_secret_basic']; |
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} |
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/** |
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* @return string |
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*/ |
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private function createClientSecret(): string |
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{ |
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return bin2hex(random_bytes(128)); |
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} |
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} |
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OAuth2-Framework /
oauth2-framework
