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<?php |
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namespace Somoza\OAuth2Middleware\TokenService; |
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use League\OAuth2\Client\Token\AccessToken; |
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use Psr\Http\Message\RequestInterface; |
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/** |
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* Bearer PSR7 Middleware |
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* |
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* @author Gabriel Somoza <[email protected]> |
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* |
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* @see https://tools.ietf.org/html/rfc6750 |
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*/ |
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final class Bearer extends AbstractTokenService |
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{ |
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/** @string Name of the authorization header injected into the request */ |
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const HEADER_AUTHORIZATION = 'Authorization'; |
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/** @string Access Token type */ |
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const TOKEN_TYPE = 'Bearer'; |
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/** |
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* @inheritdoc |
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*/ |
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public function isAuthorized(RequestInterface $request): bool |
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{ |
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return $request->hasHeader(self::HEADER_AUTHORIZATION); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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protected function requestAccessToken(): AccessToken |
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{ |
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return $this->getProvider()->getAccessToken(self::GRANT_CLIENT_CREDENTIALS); |
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} |
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/** |
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* Returns an authorized copy of the request. Only gets called when necessary (i.e. not if the request is already |
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* authorized), and always with a valid (fresh) Access Token. However, it SHOULD be idempotent. |
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* |
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* @param RequestInterface $request An unauthorized request |
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* |
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* @return RequestInterface An authorized copy of the request |
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*/ |
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protected function getAuthorizedRequest(RequestInterface $request): RequestInterface |
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{ |
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/** @var RequestInterface $request */ |
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$request = $request->withHeader( |
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self::HEADER_AUTHORIZATION, |
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$this->getAuthorizationString() |
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); |
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return $request; |
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} |
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/** |
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* @return string |
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*/ |
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private function getAuthorizationString(): string |
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{ |
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return self::TOKEN_TYPE . ' ' . $this->getAccessToken()->getToken(); |
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} |
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} |
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gsomoza /
oauth2-middleware
