1 files changed, 33 insertions, 59 deletions

diff --git a/apps/workflowengine/lib/Entity/File.php b/apps/workflowengine/lib/Entity/File.php
index 3f09fcd24a1..64d552e1737 100644
--- a/apps/workflowengine/lib/Entity/File.php
+++ b/apps/workflowengine/lib/Entity/File.php
@@ -3,42 +3,24 @@
 declare(strict_types=1);
 
 /**
- * @copyright Copyright (c) 2019 Arthur Schiwon <blizzz@arthur-schiwon.de>
- *
- * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
+ * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\WorkflowEngine\Entity;
 
+use OC\Files\Config\UserMountCache;
 use OCP\EventDispatcher\Event;
 use OCP\EventDispatcher\GenericEvent;
 use OCP\Files\InvalidPathException;
 use OCP\Files\IRootFolder;
+use OCP\Files\Mount\IMountManager;
 use OCP\Files\Node;
 use OCP\Files\NotFoundException;
 use OCP\IL10N;
-use OCP\ILogger;
 use OCP\IURLGenerator;
 use OCP\IUser;
 use OCP\IUserManager;
 use OCP\IUserSession;
-use OCP\Share\IManager as ShareManager;
 use OCP\SystemTag\ISystemTag;
 use OCP\SystemTag\ISystemTagManager;
 use OCP\SystemTag\MapperEvent;
@@ -52,50 +34,28 @@ use OCP\WorkflowEngine\IRuleMatcher;
 
 class File implements IEntity, IDisplayText, IUrl, IIcon, IContextPortation {
 	private const EVENT_NAMESPACE = '\OCP\Files::';
-
-	/** @var IL10N */
-	protected $l10n;
-	/** @var IURLGenerator */
-	protected $urlGenerator;
-	/** @var IRootFolder */
-	protected $root;
-	/** @var ILogger */
-	protected $logger;
 	/** @var string */
 	protected $eventName;
 	/** @var Event */
 	protected $event;
-	/** @var ShareManager */
-	private $shareManager;
-	/** @var IUserSession */
-	private $userSession;
-	/** @var ISystemTagManager */
-	private $tagManager;
 	/** @var ?Node */
 	private $node;
 	/** @var ?IUser */
 	private $actingUser = null;
-	/** @var IUserManager */
-	private $userManager;
+	/** @var UserMountCache */
+	private $userMountCache;
 
 	public function __construct(
-		IL10N $l10n,
-		IURLGenerator $urlGenerator,
-		IRootFolder $root,
-		ILogger $logger,
-		ShareManager $shareManager,
-		IUserSession $userSession,
-		ISystemTagManager $tagManager,
-		IUserManager $userManager
+		protected IL10N $l10n,
+		protected IURLGenerator $urlGenerator,
+		protected IRootFolder $root,
+		private IUserSession $userSession,
+		private ISystemTagManager $tagManager,
+		private IUserManager $userManager,
+		UserMountCache $userMountCache,
+		private IMountManager $mountManager,
 	) {
-		$this->l10n = $l10n;
-		$this->urlGenerator = $urlGenerator;
-		$this->root = $root;
-		$this->logger = $logger;
-		$this->shareManager = $shareManager;
-		$this->userSession = $userSession;
-		$this->tagManager = $tagManager;
-		$this->userManager = $userManager;
+		$this->userMountCache = $userMountCache;
 	}
 
 	public function getName(): string {
@@ -134,14 +94,28 @@ class File implements IEntity, IDisplayText, IUrl, IIcon, IContextPortation {
 		}
 	}
 
-	public function isLegitimatedForUserId(string $uid): bool {
+	public function isLegitimatedForUserId(string $userId): bool {
 		try {
 			$node = $this->getNode();
-			if ($node->getOwner()->getUID() === $uid) {
+			if ($node->getOwner()?->getUID() === $userId) {
 				return true;
 			}
-			$acl = $this->shareManager->getAccessList($node, true, true);
-			return isset($acl['users']) && array_key_exists($uid, $acl['users']);
+
+			if ($this->eventName === self::EVENT_NAMESPACE . 'postDelete') {
+				// At postDelete, the file no longer exists. Check for parent folder instead.
+				$fileId = $node->getParentId();
+			} else {
+				$fileId = $node->getId();
+			}
+
+			$mountInfos = $this->userMountCache->getMountsForFileId($fileId, $userId);
+			foreach ($mountInfos as $mountInfo) {
+				$mount = $this->mountManager->getMountFromMountInfo($mountInfo);
+				if ($mount && $mount->getStorage() && !empty($mount->getStorage()->getCache()->get($fileId))) {
+					return true;
+				}
+			}
+			return false;
 		} catch (NotFoundException $e) {
 			return false;
 		}