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<?php |
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declare(strict_types = 1); |
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/** |
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* CakePHP(tm) : Rapid Development Framework (https://cakephp.org) |
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* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org) |
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* |
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* Licensed under The MIT License |
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* For full copyright and license information, please see the LICENSE.txt |
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* Redistributions of files must retain the above copyright notice. |
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* |
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* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org) |
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* @link https://cakephp.org CakePHP(tm) Project |
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* @since 1.0.0 |
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* @license https://opensource.org/licenses/mit-license.php MIT License |
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*/ |
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namespace Phauthentic\Authorization; |
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use Phauthentic\Authorization\Policy\BeforePolicyInterface; |
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use Phauthentic\Authorization\Policy\Exception\MissingMethodException; |
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use Phauthentic\Authorization\Policy\ResolverInterface; |
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use Phauthentic\Authorization\Policy\Result; |
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use Phauthentic\Authorization\Policy\ResultInterface; |
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use RuntimeException; |
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/** |
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* Authorization Service |
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*/ |
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class AuthorizationService implements AuthorizationServiceInterface |
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{ |
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/** |
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* Authorization policy resolver. |
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* |
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* @var \Phauthentic\Authorization\Policy\ResolverInterface |
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*/ |
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protected $resolver; |
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/** |
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* Track whether or not authorization was checked. |
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* |
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* @var bool |
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*/ |
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protected $authorizationChecked = false; |
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/** |
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* Constructor |
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* |
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* @param \Phauthentic\Authorization\Policy\ResolverInterface $resolver Authorization policy resolver. |
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*/ |
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public function __construct(ResolverInterface $resolver) |
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{ |
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$this->resolver = $resolver; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function can(?IdentityInterface $user, string $action, $resource): ResultInterface |
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{ |
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$this->authorizationChecked = true; |
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$policy = $this->resolver->getPolicy($resource); |
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if ($policy instanceof BeforePolicyInterface) { |
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$result = $policy->before($user, $resource, $action); |
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if (is_bool($result)) { |
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return new Result($result); |
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} |
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if ($result instanceof ResultInterface) { |
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return $result; |
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} |
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if ($result !== null) { |
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throw new RuntimeException(sprintf( |
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'Pre-authorization check must return instance of `%s`, `bool` or `null`.', |
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ResultInterface::class |
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3 |
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)); |
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} |
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} |
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3 |
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$handler = $this->getCanHandler($policy, $action); |
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$result = $handler($user, $resource); |
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2 |
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if (is_bool($result)) { |
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return new Result($result); |
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} |
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if ($result instanceof ResultInterface) { |
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return $result; |
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} |
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throw new RuntimeException(sprintf( |
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'Policy action handler must return instance of `%s` or `bool`.', |
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ResultInterface::class |
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)); |
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} |
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/** |
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1 |
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* {@inheritDoc} |
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*/ |
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public function applyScope(?IdentityInterface $user, string $action, $resource) |
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{ |
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$this->authorizationChecked = true; |
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$policy = $this->resolver->getPolicy($resource); |
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$handler = $this->getScopeHandler($policy, $action); |
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return $handler($user, $resource); |
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} |
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/** |
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* Returns a policy action handler. |
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* |
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* @param mixed $policy Policy object. |
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* @param string $action Action name. |
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* @return callable |
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* @throws \Phauthentic\Authorization\Policy\Exception\MissingMethodException |
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*/ |
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protected function getCanHandler($policy, $action): callable |
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{ |
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$method = 'can' . ucfirst($action); |
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2 |
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if (!method_exists($policy, $method) && !method_exists($policy, '__call')) { |
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throw (new MissingMethodException())->setMessageVars([$method, $action, get_class($policy)]); |
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} |
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return [$policy, $method]; |
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} |
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/** |
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* Returns a policy scope action handler. |
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* |
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* @param mixed $policy Policy object. |
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* @param string $action Action name. |
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* @return callable |
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* @throws \Phauthentic\Authorization\Policy\Exception\MissingMethodException |
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*/ |
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protected function getScopeHandler($policy, $action): callable |
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{ |
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$method = 'scope' . ucfirst($action); |
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if (!method_exists($policy, $method)) { |
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throw (new MissingMethodException())->setMessageVars([$method, $action, get_class($policy)]); |
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} |
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return [$policy, $method]; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function authorizationChecked(): bool |
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{ |
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return $this->authorizationChecked; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function skipAuthorization(): AuthorizationServiceInterface |
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{ |
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$this->authorizationChecked = true; |
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return $this; |
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} |
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} |
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Phauthentic /
authorization
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