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<?php declare(strict_types=1); |
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namespace Limoncello\Auth\Authorization\PolicyEnforcement; |
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/** |
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* Copyright 2015-2019 [email protected] |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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use Limoncello\Auth\Contracts\Authorization\PolicyAdministration\EvaluationEnum; |
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use Limoncello\Auth\Contracts\Authorization\PolicyDecision\PolicyDecisionPointInterface; |
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use Limoncello\Auth\Contracts\Authorization\PolicyEnforcement\PolicyEnforcementPointInterface; |
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use Limoncello\Auth\Contracts\Authorization\PolicyEnforcement\RequestInterface; |
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use Limoncello\Auth\Contracts\Authorization\PolicyInformation\PolicyInformationPointInterface; |
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use Psr\Log\LoggerAwareInterface; |
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use Psr\Log\LoggerAwareTrait; |
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use function call_user_func; |
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/** |
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* @package Limoncello\Auth |
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*/ |
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class PolicyEnforcementPoint implements PolicyEnforcementPointInterface, LoggerAwareInterface |
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{ |
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use LoggerAwareTrait; |
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/** |
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* @var PolicyInformationPointInterface |
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*/ |
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private $pip; |
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/** |
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* @var PolicyDecisionPointInterface |
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*/ |
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private $pdp; |
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/** |
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* @var bool |
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*/ |
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private $isExecuteAdvice = true; |
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/** |
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* @param PolicyInformationPointInterface $pip |
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* @param PolicyDecisionPointInterface $pdp |
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*/ |
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public function __construct(PolicyInformationPointInterface $pip, PolicyDecisionPointInterface $pdp) |
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{ |
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$this->pip = $pip; |
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$this->pdp = $pdp; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function authorize(RequestInterface $request): bool |
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{ |
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$context = $this->getPip()->createContext($request); |
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/** @var int $evaluation */ |
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/** @var callable[] $obligations */ |
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/** @var callable[] $advice */ |
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list ($evaluation, $obligations, $advice) = $this->getPdp()->evaluate($context); |
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$isAuthorized = $this->interpretEvaluation($evaluation); |
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foreach ($obligations as $obligation) { |
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call_user_func($obligation, $context); |
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} |
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if ($this->isExecuteAdvice() === true) { |
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foreach ($advice as $callable) { |
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call_user_func($callable, $context); |
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} |
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} |
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return $isAuthorized; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isExecuteAdvice(): bool |
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{ |
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return $this->isExecuteAdvice; |
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} |
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/** |
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* @return self |
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*/ |
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public function enableExecuteAdvice(): self |
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{ |
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$this->isExecuteAdvice = true; |
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return $this; |
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} |
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/** |
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* @return self |
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*/ |
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public function disableExecuteAdvice(): self |
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{ |
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$this->isExecuteAdvice = false; |
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return $this; |
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} |
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/** |
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* @return PolicyInformationPointInterface |
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*/ |
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protected function getPip(): PolicyInformationPointInterface |
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{ |
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return $this->pip; |
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} |
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/** |
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* @return PolicyDecisionPointInterface |
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*/ |
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protected function getPdp(): PolicyDecisionPointInterface |
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{ |
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return $this->pdp; |
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} |
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/** |
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* @param int $evaluation |
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* |
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* @return bool |
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*/ |
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protected function interpretEvaluation(int $evaluation): bool |
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{ |
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return $evaluation === EvaluationEnum::PERMIT; |
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} |
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} |
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limoncello-php-dist /
auth
