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<?php declare(strict_types=1); |
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namespace Jasny\HttpSignature; |
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use Http\Client\Common\Plugin as HttpPlugin; |
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use Http\Promise\Promise as HttpPromise; |
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use Psr\Http\Message\RequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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/** |
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* Middleware to sign PSR-7 HTTP requests. |
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*/ |
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class ClientMiddleware |
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{ |
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/** |
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* @var HttpSignature |
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*/ |
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protected $service; |
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/** |
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* @var string|null |
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*/ |
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protected $keyId; |
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/** |
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* Class constructor. |
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* |
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* @param HttpSignature $service |
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* @param string $keyId Default keyId |
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*/ |
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public function __construct(HttpSignature $service, ?string $keyId = null) |
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{ |
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$this->service = $service; |
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$this->keyId = $keyId; |
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} |
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/** |
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* Return a callback that can be used as double pass middleware. |
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* |
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* @return callable |
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*/ |
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public function asDoublePass(): callable |
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{ |
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if ($this->keyId === null) { |
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throw new \BadMethodCallException('Unable to use as double pass middleware, no keyId specified'); |
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} |
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return function (RequestInterface $request, ResponseInterface $response, callable $next): ResponseInterface { |
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$signedRequest = $this->service->sign($request, $this->keyId); |
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return $next($signedRequest, $response); |
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}; |
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} |
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/** |
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* Return a callback that can be used as Guzzle middleware. |
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* @see http://docs.guzzlephp.org/en/stable/handlers-and-middleware.html |
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* |
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* @return callable |
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*/ |
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public function forGuzzle(): callable |
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{ |
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return function (callable $handler) { |
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return function (RequestInterface $request, array $options) use ($handler) { |
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if ($request->hasHeader('Authorization')) { |
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return $handler($request, $options); |
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} |
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$keyId = array_key_exists('signature_key_id', $options) ? $options['signature_key_id'] : $this->keyId; |
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$nextRequest = $keyId !== null ? $this->service->sign($request, $keyId) : $request; |
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return $handler($nextRequest, $options); |
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}; |
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}; |
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} |
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/** |
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* Create a version of this middleware that can be used in HTTPlug. |
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* @see http://docs.php-http.org/en/latest/plugins/introduction.html |
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* |
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* @return self&HttpPlugin |
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*/ |
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public function forHttplug(): HttpPlugin |
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{ |
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if ($this->keyId === null) { |
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throw new \BadMethodCallException('Unable to use as httplug plugin, no keyId specified'); |
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} |
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return new class ($this->service, $this->keyId) extends ClientMiddleware implements HttpPlugin { |
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public function handleRequest(RequestInterface $request, callable $next, callable $first): HttpPromise |
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{ |
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$signedRequest = $this->service->sign($request, $this->keyId); |
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return $next($signedRequest); |
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} |
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}; |
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} |
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} |
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jasny /
http-signature
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