134 lines
4 KiB
PHP
134 lines
4 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2019 Arthur Schiwon <blizzz@arthur-schiwon.de>
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OCA\WorkflowEngine\Service;
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use OCA\WorkflowEngine\Helper\ScopeContext;
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use OCA\WorkflowEngine\Manager;
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use OCP\AppFramework\QueryException;
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use OCP\Files\Storage\IStorage;
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use OCP\IL10N;
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use OCP\IServerContainer;
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use OCP\IUserSession;
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use OCP\WorkflowEngine\ICheck;
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use OCP\WorkflowEngine\IEntity;
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use OCP\WorkflowEngine\IEntityCheck;
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use OCP\WorkflowEngine\IFileCheck;
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use OCP\WorkflowEngine\IManager;
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use OCP\WorkflowEngine\IRuleMatcher;
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class RuleMatcher implements IRuleMatcher {
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/** @var IUserSession */
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protected $session;
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/** @var IManager */
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protected $manager;
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/** @var array */
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protected $contexts;
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/** @var IServerContainer */
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protected $container;
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/** @var array */
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protected $fileInfo = [];
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/** @var IL10N */
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protected $l;
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public function __construct(IUserSession $session, IServerContainer $container, IL10N $l, Manager $manager) {
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$this->session = $session;
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$this->manager = $manager;
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$this->container = $container;
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$this->l = $l;
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}
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public function setFileInfo(IStorage $storage, string $path): void {
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$this->fileInfo['storage'] = $storage;
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$this->fileInfo['path'] = $path;
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}
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public function setEntitySubject(IEntity $entity, $subject): void {
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$this->contexts[get_class($entity)] = [$entity, $subject];
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}
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public function getMatchingOperations(string $class, bool $returnFirstMatchingOperationOnly = true): array {
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$scopes[] = new ScopeContext(IManager::SCOPE_ADMIN);
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$user = $this->session->getUser();
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if($user !== null) {
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$scopes[] = new ScopeContext(IManager::SCOPE_USER, $user->getUID());
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}
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$operations = [];
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foreach ($scopes as $scope) {
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$operations = array_merge($operations, $this->manager->getOperations($class, $scope));
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}
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$matches = [];
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foreach ($operations as $operation) {
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$checkIds = json_decode($operation['checks'], true);
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$checks = $this->manager->getChecks($checkIds);
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foreach ($checks as $check) {
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if (!$this->check($check)) {
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// Check did not match, continue with the next operation
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continue 2;
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}
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}
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if ($returnFirstMatchingOperationOnly) {
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return $operation;
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}
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$matches[] = $operation;
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}
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return $matches;
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}
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/**
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* @param array $check
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* @return bool
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*/
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public function check(array $check) {
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try {
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$checkInstance = $this->container->query($check['class']);
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} catch (QueryException $e) {
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// Check does not exist, assume it matches.
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return true;
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}
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if ($checkInstance instanceof IFileCheck) {
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if (empty($this->fileInfo)) {
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throw new \RuntimeException('Must set file info before running the check');
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}
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$checkInstance->setFileInfo($this->fileInfo['storage'], $this->fileInfo['path']);
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} elseif ($checkInstance instanceof IEntityCheck) {
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foreach($this->contexts as $entityInfo) {
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list($entity, $subject) = $entityInfo;
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$checkInstance->setEntitySubject($entity, $subject);
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}
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} else if(!$checkInstance instanceof ICheck) {
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// Check is invalid
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throw new \UnexpectedValueException($this->l->t('Check %s is invalid or does not exist', $check['class']));
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}
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return $checkInstance->executeCheck($check['operator'], $check['value']);
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}
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}
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