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<?php |
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declare(strict_types=1); |
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namespace EcPhp\ApiGwAuthenticationBundle\Service\KeyLoader; |
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use EcPhp\ApiGwAuthenticationBundle\Exception\ApiGwAuthenticationException; |
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use EcPhp\ApiGwAuthenticationBundle\Service\KeyConverter\KeyConverterInterface; |
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use Symfony\Contracts\HttpClient\HttpClientInterface; |
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use Throwable; |
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use function array_key_exists; |
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final class JWKSKeyLoader implements KeyLoaderInterface |
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{ |
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private HttpClientInterface $httpClient; |
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private KeyConverterInterface $keyConverter; |
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private KeyLoaderInterface $keyLoader; |
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public function __construct( |
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KeyLoaderInterface $keyLoader, |
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HttpClientInterface $httpClient, |
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KeyConverterInterface $keyConverter |
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) { |
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$this->keyLoader = $keyLoader; |
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$this->httpClient = $httpClient; |
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$this->keyConverter = $keyConverter; |
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} |
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public function getPassphrase(): string |
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{ |
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return $this->keyLoader->getPassphrase(); |
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} |
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public function getPublicKey(): string |
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{ |
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return $this->keyLoader->getPublicKey(); |
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} |
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public function getSigningKey(): string |
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{ |
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return $this->keyLoader->getSigningKey(); |
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} |
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public function loadKey($type): string |
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{ |
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// Todo: Implements for PRIVATE key as well. |
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$key = $this->keyLoader->getPublicKey(); |
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try { |
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$response = $this->httpClient->request('GET', $key); |
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} catch (Throwable $e) { |
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throw new ApiGwAuthenticationException( |
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sprintf('Unable to request uri(%s) for %s key.', $key, $type), |
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$e->getCode(), |
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$e |
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); |
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} |
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if (200 !== $statusCode = $response->getStatusCode()) { |
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throw new ApiGwAuthenticationException( |
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sprintf('Invalid code(%s) thrown while fetching the %s key at %s.', $statusCode, $type, $key) |
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); |
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} |
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$jwks = $response->toArray(); |
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if (false === array_key_exists('keys', $jwks)) { |
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throw new ApiGwAuthenticationException( |
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sprintf('Invalid JWKS format of %s key at %s.', $type, $key) |
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); |
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} |
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if ([] === $jwks['keys']) { |
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throw new ApiGwAuthenticationException( |
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sprintf('Invalid JWKS format of %s key at %s, keys array is empty.', $type, $key) |
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); |
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} |
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return current($this->keyConverter->fromJWKStoPEMS($jwks['keys'])); |
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} |
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} |
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ecphp /
api-gw-authentication-bundle
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