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<?php |
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namespace Chadicus\Psr\Http\ServerMiddleware; |
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use ArrayAccess; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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/** |
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* PSR-7 Middleware for extracting and validating request via hmac cryptography. |
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*/ |
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final class Middleware |
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{ |
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/** |
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* Obtains private keys. |
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* |
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* @var KeyProviderInterface |
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*/ |
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private $keyProvider; |
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/** |
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* Extracts the token information from the incoming request. |
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* |
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* @var TokenExtractorInterface |
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*/ |
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private $tokenExtractor; |
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/** |
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* Validates the extracted token. |
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* |
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* @var TokenValidatorInterface |
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*/ |
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private $tokenValidator; |
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/** |
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* Container in which to store the private key. |
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* |
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* @var ArrayAccess |
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*/ |
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private $container; |
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/** |
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* Construct a new instance of this middleware. |
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* |
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* @param KeyProviderInterface $provider Obtains private keys. |
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* @param TokenExtractorInterface $extractor Extracts the token information from the incoming request. |
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* @param TokenValidatorInterface $validator Validates the extracted token. |
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* @param ArrayAccess $container Container in which to store the private key. |
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*/ |
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public function __construct( |
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KeyProviderInterface $provider, |
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TokenExtractorInterface $extractor, |
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TokenValidatorInterface $validator, |
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ArrayAccess $container |
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) { |
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$this->keyProvider = $provider; |
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$this->tokenExtractor = $extractor; |
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$this->tokenValidator = $validator; |
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$this->tokenContainer = $container; |
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} |
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/** |
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* Execute this middleware. |
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* |
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* @param ServerRequestInterface $request The incoming PSR7 request. |
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* @param ResponseInterface $response The outgoing PSR7 response. |
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* @param callable $next The next middleware. |
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* |
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* @return ResponseInterface |
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*/ |
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public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next) |
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{ |
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try { |
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$token = $this->tokenExtractor->extract($request); |
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$privateKey = $this->keyProvider->findPrivateKey($token->getPublicKey()); |
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$this->tokenValidator->validate($privateKey, $token, $request); |
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//Authenticated! Set the private key and call the next middleware |
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$this->tokenContainer['privateKey'] = $privateKey; |
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return $next($request, $response); |
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} catch (AuthenticationException $e) { |
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return $response->withStatus($e->getStatusCode(), $e->getReasonPhrase()); |
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} |
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} |
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} |
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chadicus /
hmac-middleware-php
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This check marks private properties in classes that are never used. Those properties can be removed.