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<?php |
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|
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declare(strict_types=1); |
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|
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2021 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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|
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namespace Webauthn\MetadataService; |
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|
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use Assert\Assertion; |
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use Base64Url\Base64Url; |
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use Psr\Http\Client\ClientInterface; |
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use Psr\Http\Message\RequestFactoryInterface; |
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use function Safe\json_decode; |
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use function Safe\sprintf; |
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|
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class DistantSingleMetadata extends SingleMetadata |
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{ |
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/** |
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* @var ClientInterface |
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*/ |
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private $httpClient; |
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|
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/** |
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* @var RequestFactoryInterface |
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*/ |
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private $requestFactory; |
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|
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/** |
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* @var array |
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*/ |
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private $additionalHeaders; |
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|
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/** |
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* @var string |
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*/ |
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private $uri; |
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|
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/** |
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* @var bool |
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*/ |
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private $isBase64Encoded; |
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|
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public function __construct(string $uri, bool $isBase64Encoded, ClientInterface $httpClient, RequestFactoryInterface $requestFactory, array $additionalHeaders = []) |
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{ |
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parent::__construct($uri, $isBase64Encoded); //Useless |
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$this->uri = $uri; |
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$this->isBase64Encoded = $isBase64Encoded; |
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$this->httpClient = $httpClient; |
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$this->requestFactory = $requestFactory; |
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$this->additionalHeaders = $additionalHeaders; |
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} |
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|
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public function getMetadataStatement(): MetadataStatement |
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{ |
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$payload = $this->fetch(); |
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$json = $this->isBase64Encoded ? Base64Url::decode($payload) : $payload; |
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$data = json_decode($json, true); |
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|
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return MetadataStatement::createFromArray($data); |
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} |
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|
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private function fetch(): string |
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{ |
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$request = $this->requestFactory->createRequest('GET', $this->uri); |
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foreach ($this->additionalHeaders as $k => $v) { |
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$request = $request->withHeader($k, $v); |
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} |
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$response = $this->httpClient->sendRequest($request); |
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Assertion::eq(200, $response->getStatusCode(), sprintf('Unable to contact the server. Response code is %d', $response->getStatusCode())); |
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$content = $response->getBody()->getContents(); |
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Assertion::notEmpty($content, 'Unable to contact the server. The response has no content'); |
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|
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return $content; |
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} |
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} |
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