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<?php |
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/** |
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* Copyright (c) Florian Krämer (https://florian-kraemer.net) |
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* Licensed under The GPL3 License |
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* For full copyright and license information, please see the LICENSE.txt |
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* Redistributions of files must retain the above copyright notice. |
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* |
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* @copyright Copyright (c) Florian Krämer (https://florian-kraemer.net) |
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* @author Florian Krämer |
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* @link https://github.com/Phauthentic |
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* @license https://opensource.org/licenses/MIT MIT License |
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*/ |
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declare(strict_types=1); |
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namespace Phauthentic\Infrastructure\Http\Middleware; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Server\MiddlewareInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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/** |
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* Correlation Id Middleware |
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*/ |
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class CorrelationIDMiddleware implements MiddlewareInterface |
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{ |
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/** |
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* @var string |
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*/ |
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protected $correlationID; |
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/** |
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* @var string |
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*/ |
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protected $attributeName = 'CorrelationID'; |
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/** |
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* @var string |
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*/ |
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protected $headerName = 'CorrelationID'; |
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/** |
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* Constructor |
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* |
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* @param string $correlationId Correlation Id |
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* @param string $attributeName Attribute Name |
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* @param string $headerName Header Name |
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*/ |
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public function __construct( |
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string $correlationID, |
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string $attributeName = 'CorrelationID', |
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string $headerName = 'CorrelationID' |
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) { |
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$this->correlationID = $correlationID; |
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$this->attributeName = $attributeName; |
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$this->headerName = $headerName; |
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} |
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/** |
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* Process an incoming server request. |
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* Processes an incoming server request in order to produce a response. |
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* If unable to produce the response itself, it may delegate to the provided |
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* request handler to do so. |
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*/ |
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public function process( |
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ServerRequestInterface $request, |
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RequestHandlerInterface $handler |
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): ResponseInterface |
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{ |
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if ( |
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$request->getHeader($this->headerName) === [] |
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|| $request->getAttribute($this->headerName, false) |
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) { |
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$request = $request->withAttribute( |
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$this->attributeName, |
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$this->correlationID |
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); |
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$request = $request->withHeader( |
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$this->headerName, |
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$this->correlationID |
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); |
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} |
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return $handler->handle($request); |
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} |
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} |
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Phauthentic /
correlation-id
