14 files changed, 254 insertions, 398 deletions

diff --git a/apps/files_trashbin/lib/Sabre/AbstractTrash.php b/apps/files_trashbin/lib/Sabre/AbstractTrash.php
index 412e432a19e..f032395437b 100644
--- a/apps/files_trashbin/lib/Sabre/AbstractTrash.php
+++ b/apps/files_trashbin/lib/Sabre/AbstractTrash.php
@@ -3,42 +3,23 @@
 declare(strict_types=1);
 
 /**
- * @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
- *
- * @author Robin Appelman <robin@icewind.nl>
- *
- * @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: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Trashbin\Sabre;
 
+use OCA\Files_Trashbin\Service\ConfigService;
 use OCA\Files_Trashbin\Trash\ITrashItem;
 use OCA\Files_Trashbin\Trash\ITrashManager;
 use OCP\Files\FileInfo;
+use OCP\IUser;
+use Sabre\DAV\Exception\Forbidden;
 
 abstract class AbstractTrash implements ITrash {
-	/** @var ITrashItem */
-	protected $data;
-
-	/** @var ITrashManager */
-	protected $trashManager;
-
-	public function __construct(ITrashManager $trashManager, ITrashItem $data) {
-		$this->trashManager = $trashManager;
-		$this->data = $data;
+	public function __construct(
+		protected ITrashManager $trashManager,
+		protected ITrashItem $data,
+	) {
 	}
 
 	public function getFilename(): string {
@@ -57,7 +38,11 @@ abstract class AbstractTrash implements ITrash {
 		return $this->data;
 	}
 
-	public function getSize(): int {
+	/**
+	 * @psalm-suppress ImplementedReturnTypeMismatch \Sabre\DAV\IFile::getSize signature does not support 32bit
+	 * @return int|float
+	 */
+	public function getSize(): int|float {
 		return $this->data->getSize();
 	}
 
@@ -85,7 +70,15 @@ abstract class AbstractTrash implements ITrash {
 		return $this->data->getTitle();
 	}
 
+	public function getDeletedBy(): ?IUser {
+		return $this->data->getDeletedBy();
+	}
+
 	public function delete() {
+		if (!ConfigService::getDeleteFromTrashEnabled()) {
+			throw new Forbidden('Not allowed to delete items from the trash bin');
+		}
+
 		$this->trashManager->removeItem($this->data);
 	}
 
diff --git a/apps/files_trashbin/lib/Sabre/AbstractTrashFile.php b/apps/files_trashbin/lib/Sabre/AbstractTrashFile.php
index 520a2a6b6ec..03014d23669 100644
--- a/apps/files_trashbin/lib/Sabre/AbstractTrashFile.php
+++ b/apps/files_trashbin/lib/Sabre/AbstractTrashFile.php
@@ -3,26 +3,8 @@
 declare(strict_types=1);
 
 /**
- * @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
- *
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- * @author Robin Appelman <robin@icewind.nl>
- *
- * @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: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Trashbin\Sabre;
 
diff --git a/apps/files_trashbin/lib/Sabre/AbstractTrashFolder.php b/apps/files_trashbin/lib/Sabre/AbstractTrashFolder.php
index 8a61823cf10..9e8f67f4db6 100644
--- a/apps/files_trashbin/lib/Sabre/AbstractTrashFolder.php
+++ b/apps/files_trashbin/lib/Sabre/AbstractTrashFolder.php
@@ -3,25 +3,8 @@
 declare(strict_types=1);
 
 /**
- * @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
- *
- * @author Robin Appelman <robin@icewind.nl>
- *
- * @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: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Trashbin\Sabre;
 
diff --git a/apps/files_trashbin/lib/Sabre/ITrash.php b/apps/files_trashbin/lib/Sabre/ITrash.php
index dcda1abe259..f37e1ccd9c3 100644
--- a/apps/files_trashbin/lib/Sabre/ITrash.php
+++ b/apps/files_trashbin/lib/Sabre/ITrash.php
@@ -3,30 +3,13 @@
 declare(strict_types=1);
 
 /**
- * @copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @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: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Trashbin\Sabre;
 
 use OCP\Files\FileInfo;
+use OCP\IUser;
 
 interface ITrash {
 	public function restore(): bool;
@@ -39,7 +22,9 @@ interface ITrash {
 
 	public function getDeletionTime(): int;
 
-	public function getSize();
+	public function getDeletedBy(): ?IUser;
+
+	public function getSize(): int|float;
 
 	public function getFileId(): int;
 
diff --git a/apps/files_trashbin/lib/Sabre/PropfindPlugin.php b/apps/files_trashbin/lib/Sabre/PropfindPlugin.php
deleted file mode 100644
index 219f236f93c..00000000000
--- a/apps/files_trashbin/lib/Sabre/PropfindPlugin.php
+++ /dev/null
@@ -1,113 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-/**
- * @copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @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/>.
- *
- */
-namespace OCA\Files_Trashbin\Sabre;
-
-use OCA\DAV\Connector\Sabre\FilesPlugin;
-use OCP\IPreview;
-use Sabre\DAV\INode;
-use Sabre\DAV\PropFind;
-use Sabre\DAV\Server;
-use Sabre\DAV\ServerPlugin;
-
-class PropfindPlugin extends ServerPlugin {
-	public const TRASHBIN_FILENAME = '{http://nextcloud.org/ns}trashbin-filename';
-	public const TRASHBIN_ORIGINAL_LOCATION = '{http://nextcloud.org/ns}trashbin-original-location';
-	public const TRASHBIN_DELETION_TIME = '{http://nextcloud.org/ns}trashbin-deletion-time';
-	public const TRASHBIN_TITLE = '{http://nextcloud.org/ns}trashbin-title';
-
-	/** @var Server */
-	private $server;
-
-	/** @var IPreview */
-	private $previewManager;
-
-	public function __construct(
-		IPreview $previewManager
-	) {
-		$this->previewManager = $previewManager;
-	}
-
-	public function initialize(Server $server) {
-		$this->server = $server;
-
-		$this->server->on('propFind', [$this, 'propFind']);
-	}
-
-
-	public function propFind(PropFind $propFind, INode $node) {
-		if (!($node instanceof ITrash)) {
-			return;
-		}
-
-		$propFind->handle(self::TRASHBIN_FILENAME, function () use ($node) {
-			return $node->getFilename();
-		});
-
-		$propFind->handle(self::TRASHBIN_ORIGINAL_LOCATION, function () use ($node) {
-			return $node->getOriginalLocation();
-		});
-
-		$propFind->handle(self::TRASHBIN_TITLE, function () use ($node) {
-			return $node->getTitle();
-		});
-
-		$propFind->handle(self::TRASHBIN_DELETION_TIME, function () use ($node) {
-			return $node->getDeletionTime();
-		});
-
-		$propFind->handle(FilesPlugin::SIZE_PROPERTYNAME, function () use ($node) {
-			return $node->getSize();
-		});
-
-		$propFind->handle(FilesPlugin::FILEID_PROPERTYNAME, function () use ($node) {
-			return $node->getFileId();
-		});
-
-		$propFind->handle(FilesPlugin::PERMISSIONS_PROPERTYNAME, function () {
-			return 'GD'; // read + delete
-		});
-
-		$propFind->handle(FilesPlugin::GETETAG_PROPERTYNAME, function () use ($node) {
-			// add fake etag, it is only needed to identify the preview image
-			return $node->getLastModified();
-		});
-
-		$propFind->handle(FilesPlugin::INTERNAL_FILEID_PROPERTYNAME, function () use ($node) {
-			// add fake etag, it is only needed to identify the preview image
-			return $node->getFileId();
-		});
-
-		$propFind->handle(FilesPlugin::HAS_PREVIEW_PROPERTYNAME, function () use ($node) {
-			return $this->previewManager->isAvailable($node->getFileInfo());
-		});
-
-		$propFind->handle(FilesPlugin::MOUNT_TYPE_PROPERTYNAME, function () {
-			return '';
-		});
-	}
-}
diff --git a/apps/files_trashbin/lib/Sabre/RestoreFolder.php b/apps/files_trashbin/lib/Sabre/RestoreFolder.php
index 9076b3dc284..781a28bbc25 100644
--- a/apps/files_trashbin/lib/Sabre/RestoreFolder.php
+++ b/apps/files_trashbin/lib/Sabre/RestoreFolder.php
@@ -3,25 +3,8 @@
 declare(strict_types=1);
 
 /**
- * @copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @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: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Trashbin\Sabre;
 
diff --git a/apps/files_trashbin/lib/Sabre/RootCollection.php b/apps/files_trashbin/lib/Sabre/RootCollection.php
index f1b705f3e13..8886dae0895 100644
--- a/apps/files_trashbin/lib/Sabre/RootCollection.php
+++ b/apps/files_trashbin/lib/Sabre/RootCollection.php
@@ -3,47 +3,26 @@
 declare(strict_types=1);
 
 /**
- * @copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @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: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Trashbin\Sabre;
 
 use OCA\Files_Trashbin\Trash\ITrashManager;
 use OCP\IConfig;
+use OCP\IUserSession;
+use OCP\Server;
 use Sabre\DAV\INode;
 use Sabre\DAVACL\AbstractPrincipalCollection;
 use Sabre\DAVACL\PrincipalBackend;
 
 class RootCollection extends AbstractPrincipalCollection {
-	/** @var ITrashManager */
-	private $trashManager;
-
 	public function __construct(
-		ITrashManager $trashManager,
+		private ITrashManager $trashManager,
 		PrincipalBackend\BackendInterface $principalBackend,
-		IConfig $config
+		IConfig $config,
 	) {
 		parent::__construct($principalBackend, 'principals/users');
-
-		$this->trashManager = $trashManager;
 		$this->disableListing = !$config->getSystemValue('debug', false);
 	}
 
@@ -59,7 +38,7 @@ class RootCollection extends AbstractPrincipalCollection {
 	 */
 	public function getChildForPrincipal(array $principalInfo): TrashHome {
 		[, $name] = \Sabre\Uri\split($principalInfo['uri']);
-		$user = \OC::$server->getUserSession()->getUser();
+		$user = Server::get(IUserSession::class)->getUser();
 		if (is_null($user) || $name !== $user->getUID()) {
 			throw new \Sabre\DAV\Exception\Forbidden();
 		}
diff --git a/apps/files_trashbin/lib/Sabre/TrashFile.php b/apps/files_trashbin/lib/Sabre/TrashFile.php
index 13df15ff084..29bcde769d9 100644
--- a/apps/files_trashbin/lib/Sabre/TrashFile.php
+++ b/apps/files_trashbin/lib/Sabre/TrashFile.php
@@ -3,35 +3,19 @@
 declare(strict_types=1);
 
 /**
- * @copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @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: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Trashbin\Sabre;
 
+use OCA\Files_Trashbin\Trashbin;
+
 class TrashFile extends AbstractTrashFile {
 	public function get() {
-		return $this->data->getStorage()->fopen($this->data->getInternalPath() . '.d' . $this->getLastModified(), 'rb');
+		return $this->data->getStorage()->fopen(Trashbin::getTrashFilename($this->data->getInternalPath(), $this->getDeletionTime()), 'rb');
 	}
 
 	public function getName(): string {
-		return $this->data->getName() . '.d' . $this->getLastModified();
+		return Trashbin::getTrashFilename($this->data->getName(), $this->getDeletionTime());
 	}
 }
diff --git a/apps/files_trashbin/lib/Sabre/TrashFolder.php b/apps/files_trashbin/lib/Sabre/TrashFolder.php
index 094f80dad98..e1c495bf08e 100644
--- a/apps/files_trashbin/lib/Sabre/TrashFolder.php
+++ b/apps/files_trashbin/lib/Sabre/TrashFolder.php
@@ -3,31 +3,15 @@
 declare(strict_types=1);
 
 /**
- * @copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @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: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Trashbin\Sabre;
 
+use OCA\Files_Trashbin\Trashbin;
+
 class TrashFolder extends AbstractTrashFolder {
 	public function getName(): string {
-		return $this->data->getName() . '.d' . $this->getLastModified();
+		return Trashbin::getTrashFilename($this->data->getName(), $this->getDeletionTime());
 	}
 }
diff --git a/apps/files_trashbin/lib/Sabre/TrashFolderFile.php b/apps/files_trashbin/lib/Sabre/TrashFolderFile.php
index 5067d88cb48..37e70b717ae 100644
--- a/apps/files_trashbin/lib/Sabre/TrashFolderFile.php
+++ b/apps/files_trashbin/lib/Sabre/TrashFolderFile.php
@@ -3,26 +3,8 @@
 declare(strict_types=1);
 
 /**
- * @copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @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: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Trashbin\Sabre;
 
diff --git a/apps/files_trashbin/lib/Sabre/TrashFolderFolder.php b/apps/files_trashbin/lib/Sabre/TrashFolderFolder.php
index b276a6f29f9..1a5cb98e114 100644
--- a/apps/files_trashbin/lib/Sabre/TrashFolderFolder.php
+++ b/apps/files_trashbin/lib/Sabre/TrashFolderFolder.php
@@ -3,26 +3,8 @@
 declare(strict_types=1);
 
 /**
- * @copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @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: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Trashbin\Sabre;
 
diff --git a/apps/files_trashbin/lib/Sabre/TrashHome.php b/apps/files_trashbin/lib/Sabre/TrashHome.php
index dda347f4c99..fc291c76f17 100644
--- a/apps/files_trashbin/lib/Sabre/TrashHome.php
+++ b/apps/files_trashbin/lib/Sabre/TrashHome.php
@@ -3,26 +3,8 @@
 declare(strict_types=1);
 
 /**
- * @copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @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: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Trashbin\Sabre;
 
@@ -33,23 +15,11 @@ use Sabre\DAV\Exception\NotFound;
 use Sabre\DAV\ICollection;
 
 class TrashHome implements ICollection {
-	/** @var ITrashManager */
-	private $trashManager;
-
-	/** @var array */
-	private $principalInfo;
-
-	/** @var IUser */
-	private $user;
-
 	public function __construct(
-		array $principalInfo,
-		ITrashManager $trashManager,
-		IUser $user
+		private array $principalInfo,
+		private ITrashManager $trashManager,
+		private IUser $user,
 	) {
-		$this->principalInfo = $principalInfo;
-		$this->trashManager = $trashManager;
-		$this->user = $user;
 	}
 
 	public function delete() {
diff --git a/apps/files_trashbin/lib/Sabre/TrashRoot.php b/apps/files_trashbin/lib/Sabre/TrashRoot.php
index b61daacdf43..dd89583d9a1 100644
--- a/apps/files_trashbin/lib/Sabre/TrashRoot.php
+++ b/apps/files_trashbin/lib/Sabre/TrashRoot.php
@@ -3,32 +3,15 @@
 declare(strict_types=1);
 
 /**
- * @copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Julius Härtl <jus@bitgrid.net>
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @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: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Trashbin\Sabre;
 
+use OCA\Files_Trashbin\Service\ConfigService;
 use OCA\Files_Trashbin\Trash\ITrashItem;
 use OCA\Files_Trashbin\Trash\ITrashManager;
+use OCA\Files_Trashbin\Trashbin;
 use OCP\Files\FileInfo;
 use OCP\IUser;
 use Sabre\DAV\Exception\Forbidden;
@@ -37,19 +20,18 @@ use Sabre\DAV\ICollection;
 
 class TrashRoot implements ICollection {
 
-	/** @var IUser */
-	private $user;
-
-	/** @var ITrashManager  */
-	private $trashManager;
-
-	public function __construct(IUser $user, ITrashManager $trashManager) {
-		$this->user = $user;
-		$this->trashManager = $trashManager;
+	public function __construct(
+		private IUser $user,
+		private ITrashManager $trashManager,
+	) {
 	}
 
 	public function delete() {
-		\OCA\Files_Trashbin\Trashbin::deleteAll();
+		if (!ConfigService::getDeleteFromTrashEnabled()) {
+			throw new Forbidden('Not allowed to delete items from the trash bin');
+		}
+
+		Trashbin::deleteAll();
 		foreach ($this->trashManager->listTrashRoot($this->user) as $trashItem) {
 			$this->trashManager->removeItem($trashItem);
 		}
diff --git a/apps/files_trashbin/lib/Sabre/TrashbinPlugin.php b/apps/files_trashbin/lib/Sabre/TrashbinPlugin.php
new file mode 100644
index 00000000000..54bb1326966
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/TrashbinPlugin.php
@@ -0,0 +1,180 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\Files_Trashbin\Sabre;
+
+use OC\Files\FileInfo;
+use OC\Files\View;
+use OCA\DAV\Connector\Sabre\FilesPlugin;
+use OCA\Files_Trashbin\Trash\ITrashItem;
+use OCP\IPreview;
+use Psr\Log\LoggerInterface;
+use Sabre\DAV\INode;
+use Sabre\DAV\PropFind;
+use Sabre\DAV\Server;
+use Sabre\DAV\ServerPlugin;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+class TrashbinPlugin extends ServerPlugin {
+	public const TRASHBIN_FILENAME = '{http://nextcloud.org/ns}trashbin-filename';
+	public const TRASHBIN_ORIGINAL_LOCATION = '{http://nextcloud.org/ns}trashbin-original-location';
+	public const TRASHBIN_DELETION_TIME = '{http://nextcloud.org/ns}trashbin-deletion-time';
+	public const TRASHBIN_TITLE = '{http://nextcloud.org/ns}trashbin-title';
+	public const TRASHBIN_DELETED_BY_ID = '{http://nextcloud.org/ns}trashbin-deleted-by-id';
+	public const TRASHBIN_DELETED_BY_DISPLAY_NAME = '{http://nextcloud.org/ns}trashbin-deleted-by-display-name';
+	public const TRASHBIN_BACKEND = '{http://nextcloud.org/ns}trashbin-backend';
+
+	/** @var Server */
+	private $server;
+
+	public function __construct(
+		private IPreview $previewManager,
+		private View $view,
+	) {
+	}
+
+	public function initialize(Server $server) {
+		$this->server = $server;
+
+		$this->server->on('propFind', [$this, 'propFind']);
+		$this->server->on('afterMethod:GET', [$this,'httpGet']);
+		$this->server->on('beforeMove', [$this, 'beforeMove']);
+	}
+
+
+	public function propFind(PropFind $propFind, INode $node) {
+		if (!($node instanceof ITrash)) {
+			return;
+		}
+
+		$propFind->handle(self::TRASHBIN_FILENAME, function () use ($node) {
+			return $node->getFilename();
+		});
+
+		$propFind->handle(self::TRASHBIN_ORIGINAL_LOCATION, function () use ($node) {
+			return $node->getOriginalLocation();
+		});
+
+		$propFind->handle(self::TRASHBIN_TITLE, function () use ($node) {
+			return $node->getTitle();
+		});
+
+		$propFind->handle(self::TRASHBIN_DELETION_TIME, function () use ($node) {
+			return $node->getDeletionTime();
+		});
+
+		$propFind->handle(self::TRASHBIN_DELETED_BY_ID, function () use ($node) {
+			return $node->getDeletedBy()?->getUID();
+		});
+
+		$propFind->handle(self::TRASHBIN_DELETED_BY_DISPLAY_NAME, function () use ($node) {
+			return $node->getDeletedBy()?->getDisplayName();
+		});
+
+		// Pass the real filename as the DAV display name
+		$propFind->handle(FilesPlugin::DISPLAYNAME_PROPERTYNAME, function () use ($node) {
+			return $node->getFilename();
+		});
+
+		$propFind->handle(FilesPlugin::SIZE_PROPERTYNAME, function () use ($node) {
+			return $node->getSize();
+		});
+
+		$propFind->handle(FilesPlugin::FILEID_PROPERTYNAME, function () use ($node) {
+			return $node->getFileId();
+		});
+
+		$propFind->handle(FilesPlugin::PERMISSIONS_PROPERTYNAME, function () {
+			return 'GD'; // read + delete
+		});
+
+		$propFind->handle(FilesPlugin::GETETAG_PROPERTYNAME, function () use ($node) {
+			// add fake etag, it is only needed to identify the preview image
+			return $node->getLastModified();
+		});
+
+		$propFind->handle(FilesPlugin::INTERNAL_FILEID_PROPERTYNAME, function () use ($node) {
+			// add fake etag, it is only needed to identify the preview image
+			return $node->getFileId();
+		});
+
+		$propFind->handle(FilesPlugin::HAS_PREVIEW_PROPERTYNAME, function () use ($node): string {
+			return $this->previewManager->isAvailable($node->getFileInfo()) ? 'true' : 'false';
+		});
+
+		$propFind->handle(FilesPlugin::MOUNT_TYPE_PROPERTYNAME, function () {
+			return '';
+		});
+
+		$propFind->handle(self::TRASHBIN_BACKEND, function () use ($node) {
+			$fileInfo = $node->getFileInfo();
+			if (!($fileInfo instanceof ITrashItem)) {
+				return '';
+			}
+			return $fileInfo->getTrashBackend()::class;
+		});
+	}
+
+	/**
+	 * Set real filename on trashbin download
+	 *
+	 * @param RequestInterface $request
+	 * @param ResponseInterface $response
+	 */
+	public function httpGet(RequestInterface $request, ResponseInterface $response): void {
+		$path = $request->getPath();
+		$node = $this->server->tree->getNodeForPath($path);
+		if ($node instanceof ITrash) {
+			$response->addHeader('Content-Disposition', 'attachment; filename="' . $node->getFilename() . '"');
+		}
+	}
+
+	/**
+	 * Check if a user has available space before attempting to
+	 * restore from trashbin unless they have unlimited quota.
+	 *
+	 * @param string $sourcePath
+	 * @param string $destinationPath
+	 * @return bool
+	 */
+	public function beforeMove(string $sourcePath, string $destinationPath): bool {
+		try {
+			$node = $this->server->tree->getNodeForPath($sourcePath);
+			$destinationNodeParent = $this->server->tree->getNodeForPath(dirname($destinationPath));
+		} catch (\Sabre\DAV\Exception $e) {
+			\OCP\Server::get(LoggerInterface::class)
+				->error($e->getMessage(), ['app' => 'files_trashbin', 'exception' => $e]);
+			return true;
+		}
+
+		// Check if a file is being restored before proceeding
+		if (!$node instanceof ITrash || !$destinationNodeParent instanceof RestoreFolder) {
+			return true;
+		}
+
+		$fileInfo = $node->getFileInfo();
+		if (!$fileInfo instanceof ITrashItem) {
+			return true;
+		}
+		$restoreFolder = dirname($fileInfo->getOriginalLocation());
+		$freeSpace = $this->view->free_space($restoreFolder);
+		if ($freeSpace === FileInfo::SPACE_NOT_COMPUTED
+			|| $freeSpace === FileInfo::SPACE_UNKNOWN
+			|| $freeSpace === FileInfo::SPACE_UNLIMITED) {
+			return true;
+		}
+		$filesize = $fileInfo->getSize();
+		if ($freeSpace < $filesize) {
+			$this->server->httpResponse->setStatus(507);
+			return false;
+		}
+
+		return true;
+	}
+}