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<?php |
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declare(strict_types=1); |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2018 Spomky-Labs |
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* |
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* This software may be modified and distributed under the terms |
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* of the MIT license. See the LICENSE file for details. |
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*/ |
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namespace OAuth2Framework\Component\Server\OpenIdConnect\AfterConsentScreen; |
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use OAuth2Framework\Component\Server\AuthorizationEndpoint\AfterConsentScreen\AfterConsentScreen; |
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use OAuth2Framework\Component\Server\AuthorizationEndpoint\Authorization; |
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use Psr\Http\Message\ServerRequestInterface; |
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abstract class SessionStateParameterExtension implements AfterConsentScreen |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function process(ServerRequestInterface $request, Authorization $authorization): Authorization |
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{ |
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if ($this->hasOpenIdScope($authorization)) { |
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$browserState = $this->getBrowserState($request, $authorization); |
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$sessionState = $this->calculateSessionState($request, $authorization, $browserState); |
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$authorization = $authorization->withResponseParameter('session_state', $sessionState); |
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} |
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return $authorization; |
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} |
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/** |
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* @param Authorization $authorization |
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* @return bool |
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*/ |
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private function hasOpenIdScope(Authorization $authorization): bool |
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{ |
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if (!$authorization->hasQueryParam('scope')) { |
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return false; |
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} |
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$scope = $authorization->hasQueryParam('scope'); |
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$scopes = explode(' ', $scope); |
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return in_array('openid', $scopes); |
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} |
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/** |
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* @param ServerRequestInterface $request |
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* @param Authorization $authorization |
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* |
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* @return string |
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*/ |
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abstract protected function getBrowserState(ServerRequestInterface $request, Authorization &$authorization): string; |
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/** |
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* @param ServerRequestInterface $request |
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* @param Authorization $authorization |
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* @param string $browserState |
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* |
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* @return string |
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*/ |
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abstract protected function calculateSessionState(ServerRequestInterface $request, Authorization $authorization, string $browserState): string; |
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} |
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