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<?php declare(strict_types=1); |
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namespace ApiClients\Middleware\HeaderCollector; |
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use ApiClients\Foundation\Middleware\ErrorTrait; |
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use ApiClients\Foundation\Middleware\MiddlewareInterface; |
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use ApiClients\Foundation\Middleware\PreTrait; |
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use ApiClients\Foundation\Middleware\Priority; |
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use Psr\Http\Message\ResponseInterface; |
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use React\Promise\CancellablePromiseInterface; |
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use function React\Promise\resolve; |
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final class HeaderCollectorMiddleware implements MiddlewareInterface |
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{ |
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use ErrorTrait; |
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use PreTrait; |
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/** |
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* @var Headers |
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*/ |
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private $headers; |
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/** |
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* @param Headers $headers |
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*/ |
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public function __construct(Headers $headers) |
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{ |
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$this->headers = $headers; |
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} |
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/** |
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* @param ResponseInterface $response |
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* @param array $options |
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* @return CancellablePromiseInterface |
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*/ |
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public function post(ResponseInterface $response, array $options = []): CancellablePromiseInterface |
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{ |
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if (isset($options[self::class]) && |
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isset($options[self::class][Options::HEADERS]) && |
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is_array($options[self::class][Options::HEADERS]) |
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) { |
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$this->extractHeaders($response, $options[self::class][Options::HEADERS]); |
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} |
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return resolve($response); |
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} |
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/** |
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* @return int |
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*/ |
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public function priority(): int |
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{ |
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return Priority::LAST; |
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} |
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/** |
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* @param ResponseInterface $response |
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* @param array $headers |
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*/ |
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private function extractHeaders(ResponseInterface $response, array $headers) |
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{ |
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$set = []; |
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foreach ($headers as $header) { |
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if (!$response->hasHeader($header)) { |
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continue; |
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} |
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$set[$header] = $response->getHeaderLine($header); |
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} |
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if (count($set) === 0) { |
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return; |
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} |
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$this->headers->onNext($set); |
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} |
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} |
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php-api-clients /
middleware-header-collector
