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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 2015-2018 LibreWorks contributors |
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* @license Apache-2.0 |
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*/ |
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namespace Caridea\Acl; |
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/** |
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* Delegates ACL retrieval to Loaders. |
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* |
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* @copyright 2015-2018 LibreWorks contributors |
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* @license Apache-2.0 |
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*/ |
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class DelegateStrategy implements MultiStrategy |
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{ |
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/** |
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* @var SplFixedArray<\Caridea\Acl\Loader> The loaders to consult |
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*/ |
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private $loaders; |
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/** |
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* Creates a new DelegateStrategy. |
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* |
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* @param \Caridea\Acl\Loader[] $loaders An array of Loaders to use |
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* @throws \InvalidArgumentException if an entry in `loaders` isn't a `Loader` |
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*/ |
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public function __construct(array $loaders) |
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{ |
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foreach ($loaders as $loader) { |
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if (!($loader instanceof Loader)) { |
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throw new \InvalidArgumentException("Only instances of Loader are permitted in the loaders argument"); |
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} |
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} |
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// HHVM appears to use max() inside of FixedArray which bails when empty |
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$this->loaders = empty($loaders) ? |
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new \SplFixedArray() : \SplFixedArray::fromArray($loaders); |
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} |
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/** |
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* Loads the ACL for a Target. |
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* |
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* @param \Caridea\Acl\Target $target 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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* @param \Caridea\Acl\Service $service The calling service (to load parent ACLs) |
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* @return \Caridea\Acl\Acl The loaded ACL |
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* @throws \Caridea\Acl\Exception\Unloadable If the target provided is invalid |
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*/ |
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public function load(Target $target, array $subjects, Service $service): Acl |
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{ |
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foreach ($this->loaders as $loader) { |
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if ($loader->supports($target)) { |
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return $loader->load($target, $subjects, $service); |
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} |
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} |
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return new DenyAcl($target); |
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} |
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/** |
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* Loads the ACLs 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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* @param \Caridea\Acl\Service $service The ACL service (to load parent ACLs) |
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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 `subjects` argument contains invalid values |
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*/ |
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public function loadAll(array $targets, array $subjects, Service $service): array |
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{ |
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$byType = []; |
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foreach ($targets as $target) { |
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if (!($target instanceof Target)) { |
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throw new \InvalidArgumentException("Only instances of Target are permitted in the targets argument"); |
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} |
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$type = $target->getType(); |
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if (!isset($byType[$type])) { |
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$byType[$type] = []; |
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} |
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$byType[$type][] = $target; |
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} |
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$acls = []; |
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foreach ($byType as $type => $ttargets) { |
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foreach ($this->loaders as $loader) { |
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if ($loader->supports($ttargets[0])) { |
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if ($loader instanceof MultiStrategy) { |
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$acls = array_merge($acls, $loader->loadAll($ttargets, $subjects, $service)); |
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} else { |
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foreach ($ttargets as $target) { |
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$acls[(string)$target] = $loader->load($target, $subjects, $service); |
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} |
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} |
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break; |
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} |
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} |
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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
