SavePermissionsAction::process()   A
last analyzed

Complexity

Conditions 3
Paths 8

Size

Total Lines 30

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 18
CRAP Score 3.0924

Importance

Changes 0
Metric Value
dl 0
loc 30
ccs 18
cts 23
cp 0.7826
rs 9.44
c 0
b 0
f 0
cc 3
nc 8
nop 2
crap 3.0924
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<?php
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declare(strict_types=1);
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namespace SlayerBirden\DataFlowServer\Authorization\Controller;
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use Doctrine\Common\Collections\Criteria;
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use Doctrine\Common\Collections\Selectable;
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use Doctrine\ORM\ORMException;
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use Psr\Http\Message\ResponseInterface;
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use Psr\Http\Message\ServerRequestInterface;
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use Psr\Http\Server\MiddlewareInterface;
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use Psr\Http\Server\RequestHandlerInterface;
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use Psr\Log\LoggerInterface;
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use SlayerBirden\DataFlowServer\Authorization\Entities\Permission;
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use SlayerBirden\DataFlowServer\Authorization\HistoryManagementInterface;
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use SlayerBirden\DataFlowServer\Doctrine\Hydrator\ListExtractor;
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use SlayerBirden\DataFlowServer\Doctrine\Middleware\ResourceMiddlewareInterface;
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use SlayerBirden\DataFlowServer\Doctrine\Persistence\EntityManagerRegistry;
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use SlayerBirden\DataFlowServer\Domain\Entities\ClaimedResourceInterface;
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use SlayerBirden\DataFlowServer\Domain\Entities\User;
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use SlayerBirden\DataFlowServer\Stdlib\Request\Parser;
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use SlayerBirden\DataFlowServer\Stdlib\ResponseFactory;
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use SlayerBirden\DataFlowServer\Stdlib\Validation\ValidationResponseFactory;
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use Zend\Hydrator\HydratorInterface;
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use Zend\InputFilter\InputFilterInterface;
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final class SavePermissionsAction implements MiddlewareInterface
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{
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    /**
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     * @var LoggerInterface
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     */
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    private $logger;
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    /**
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     * @var InputFilterInterface
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     */
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    private $inputFilter;
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    /**
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     * @var HistoryManagementInterface
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     */
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    private $historyManagement;
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    /**
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     * @var HydratorInterface
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     */
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    private $hydrator;
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    /**
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     * @var EntityManagerRegistry
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     */
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    private $managerRegistry;
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    /**
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     * @var Selectable
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     */
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    private $permissionRepository;
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    public function __construct(
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        EntityManagerRegistry $managerRegistry,
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        Selectable $permissionRepository,
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        LoggerInterface $logger,
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        InputFilterInterface $inputFilter,
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        HistoryManagementInterface $historyManagement,
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        HydratorInterface $hydrator
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    ) {
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        $this->managerRegistry = $managerRegistry;
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        $this->permissionRepository = $permissionRepository;
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        $this->logger = $logger;
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        $this->inputFilter = $inputFilter;
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        $this->historyManagement = $historyManagement;
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        $this->hydrator = $hydrator;
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    }
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    /**
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     * @inheritdoc
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     * @throws ORMException
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     */
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    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
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    {
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        $data = Parser::getRequestBody($request);
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        $user = $request->getAttribute(ResourceMiddlewareInterface::DATA_RESOURCE);
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        $this->inputFilter->setData($data);
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        if (!$this->inputFilter->isValid()) {
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            return (new ValidationResponseFactory())('permissions', $this->inputFilter, []);
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        }
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        $em = $this->managerRegistry->getManagerForClass(Permission::class);
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        $em->beginTransaction();
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        try {
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            $permissions = $this->processResources(
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                $user,
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                $data[ClaimedResourceInterface::OWNER_PARAM],
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                ...$data['resources']
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            );
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            $em->flush();
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            $em->commit();
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            $msg = 'Successfully set permissions to resources.';
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            $extractedPermissions = (new ListExtractor())($this->hydrator, $permissions);
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            $count = count($extractedPermissions);
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            return (new ResponseFactory())($msg, 200, 'permissions', $extractedPermissions, $count);
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        } catch (ORMException $exception) {
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            $this->logger->error((string)$exception);
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            $em->rollback();
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            $msg = 'There was an error while setting the permissions.';
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            return (new ResponseFactory())($msg, 400, 'permissions', [], 0);
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        }
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    }
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    /**
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     * @param User $user
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     * @param User $owner
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     * @param string ...$resources
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     * @return Permission[]
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     * @throws ORMException
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     */
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    private function processResources(User $user, User $owner, string ...$resources): array
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    {
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        $result = [];
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        $collection = $this->permissionRepository->matching(
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            Criteria::create()->where(Criteria::expr()->eq('user', $user))
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        );
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        $currentResources = array_map(function (Permission $permission) {
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            return $permission->getResource();
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        }, $collection->toArray());
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        $toRemove = array_diff($currentResources, $resources);
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        $toAdd = array_diff($resources, $currentResources);
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        if (empty($toAdd) && empty($toRemove)) {
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            return [];
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        }
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        $this->processItemsToRemove($collection, $toRemove, $owner, $result);
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        $this->processItemsToAdd($toAdd, $user, $owner, $result);
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        return $result;
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    }
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    /**
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     * @param $collection
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     * @param $toRemove
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     * @param $owner
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     * @param $result
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     * @throws ORMException
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     */
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    private function processItemsToRemove($collection, $toRemove, $owner, &$result): void
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    {
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        $em = $this->managerRegistry->getManagerForClass(Permission::class);
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        /** @var Permission $permission */
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        foreach ($collection as $permission) {
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            if (in_array($permission->getResource(), $toRemove, true)) {
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                $em->remove($permission);
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                $history = $this->historyManagement->fromPermission($permission);
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                $history->setOwner($owner);
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                $em->persist($history);
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            } else {
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                $result[] = $permission;
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            }
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        }
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    }
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    /**
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     * @param $toAdd
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     * @param $user
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     * @param $owner
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     * @param $result
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     * @throws ORMException
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     */
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    private function processItemsToAdd($toAdd, $user, $owner, &$result): void
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    {
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        $em = $this->managerRegistry->getManagerForClass(Permission::class);
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        foreach ($toAdd as $resource) {
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            $permission = new Permission();
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            $permission->setResource($resource);
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            $permission->setUser($user);
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            $result[] = $permission;
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            $em->persist($permission);
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            $history = $this->historyManagement->fromPermission($permission);
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            $history->setOwner($owner);
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            $em->persist($history);
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        }
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    }
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}
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