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<?php |
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declare(strict_types=1); |
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/** |
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* Caridea |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not |
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* use this file except in compliance with the License. You may obtain a copy of |
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* 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, WITHOUT |
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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* License for the specific language governing permissions and limitations under |
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* the License. |
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* |
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* @copyright 2015-2016 LibreWorks contributors |
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* @license http://opensource.org/licenses/Apache-2.0 Apache 2.0 License |
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*/ |
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namespace Caridea\Acl; |
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/** |
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* Service for working with permissions. |
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* |
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* @copyright 2015-2016 LibreWorks contributors |
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* @license http://opensource.org/licenses/Apache-2.0 Apache 2.0 License |
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*/ |
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class Service |
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{ |
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/** |
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* @var Strategy The loading strategy |
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*/ |
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private $strategy; |
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/** |
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* Creates a new Service. |
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* |
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* @param \Caridea\Acl\Strategy $strategy The loading strategy |
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*/ |
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public function __construct(Strategy $strategy) |
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{ |
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$this->strategy = $strategy; |
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} |
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/** |
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* Asserts that one of the provided subjects can verb the Target. |
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* |
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* @param Subject[] $subjects An array of `Subject`s |
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* @param string $verb The verb (e.g. `read`, `create`, `delete`) |
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* @param \Caridea\Acl\Target $target The target |
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* @throws Exception\Forbidden if the subject cannot *verb* the Target |
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*/ |
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public function assert(array $subjects, string $verb, Target $target) |
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{ |
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try { |
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if ($this->get($target, $subjects)->can($subjects, $verb)) { |
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return; |
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} |
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} catch (\Exception $ex) { |
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throw new Exception\Forbidden("Access denied to $verb the target", 0, $ex); |
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} |
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throw new Exception\Forbidden("Access denied to $verb the target"); |
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} |
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/** |
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* Whether any of the provided subjects has permission to verb the Target. |
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* |
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* @param Subject[] $subjects An array of `Subject`s |
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* @param string $verb The verb (e.g. `read`, `create`, `delete`) |
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* @param \Caridea\Acl\Target $target The target |
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* @return bool Whether one of the subjects can *verb* the provided Target |
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*/ |
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public function can(array $subjects, string $verb, Target $target): bool |
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{ |
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try { |
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return $this->get($target, $subjects)->can($subjects, $verb); |
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} catch (\Exception $ex) { |
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// just return false below |
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} |
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return false; |
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} |
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/** |
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* Gets an access control list for a Target. |
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* |
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* @param Target $target The Target whose ACL will be loaded |
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* @param Subject[] $subjects An array of `Subject`s |
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* @return Acl The Acl found |
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* @throws Exception\Unloadable If the target provided is invalid |
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* @throws \InvalidArgumentException If the `subjects` argument contains invalid values |
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*/ |
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public function get(Target $target, array $subjects): Acl |
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{ |
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return $this->strategy->load($target, $subjects, $this); |
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} |
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/** |
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* Gets access control lists for several Targets. |
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* |
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* @since 2.1.0 |
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* @param \Caridea\Acl\Target[] $targets The `Target` whose ACL will be loaded |
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* @param \Caridea\Acl\Subject[] $subjects An array of `Subject`s |
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* @return array<string,\Caridea\Acl\Acl> The loaded ACLs |
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* @throws \Caridea\Acl\Exception\Unloadable If the target provided is invalid |
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* @throws \InvalidArgumentException If the `targets` or `subjects` argument contains invalid values |
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*/ |
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public function getAll(array $targets, array $subjects): array |
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{ |
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$acls = []; |
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if ($this->strategy instanceof MultiStrategy) { |
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$acls = $this->strategy->loadAll($targets, $subjects, $this); |
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} else { |
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foreach ($targets as $target) { |
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$acls[(string)$target] = $this->strategy->load($target, $subjects, $this); |
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} |
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} |
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$missing = array_diff(array_map(function ($a) {return (string) $a;}, $targets), array_keys($acls)); |
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// Check every requested target was found |
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if (!empty($missing)) { |
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throw new Exception\Unloadable("Unable to load ACL for " . implode(", ", $missing)); |
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} |
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return $acls; |
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} |
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} |
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libreworks /
caridea-acl
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