13 files changed, 726 insertions, 0 deletions

diff --git a/apps/files_trashbin/lib/Sabre/AbstractTrash.php b/apps/files_trashbin/lib/Sabre/AbstractTrash.php
new file mode 100644
index 00000000000..f032395437b
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/AbstractTrash.php
@@ -0,0 +1,89 @@
+<?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 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 {
+	public function __construct(
+		protected ITrashManager $trashManager,
+		protected ITrashItem $data,
+	) {
+	}
+
+	public function getFilename(): string {
+		return $this->data->getName();
+	}
+
+	public function getDeletionTime(): int {
+		return $this->data->getDeletedTime();
+	}
+
+	public function getFileId(): int {
+		return $this->data->getId();
+	}
+
+	public function getFileInfo(): FileInfo {
+		return $this->data;
+	}
+
+	/**
+	 * @psalm-suppress ImplementedReturnTypeMismatch \Sabre\DAV\IFile::getSize signature does not support 32bit
+	 * @return int|float
+	 */
+	public function getSize(): int|float {
+		return $this->data->getSize();
+	}
+
+	public function getLastModified(): int {
+		return $this->data->getMtime();
+	}
+
+	public function getContentType(): string {
+		return $this->data->getMimetype();
+	}
+
+	public function getETag(): string {
+		return $this->data->getEtag();
+	}
+
+	public function getName(): string {
+		return $this->data->getName();
+	}
+
+	public function getOriginalLocation(): string {
+		return $this->data->getOriginalLocation();
+	}
+
+	public function getTitle(): string {
+		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);
+	}
+
+	public function restore(): bool {
+		$this->trashManager->restoreItem($this->data);
+		return true;
+	}
+}
diff --git a/apps/files_trashbin/lib/Sabre/AbstractTrashFile.php b/apps/files_trashbin/lib/Sabre/AbstractTrashFile.php
new file mode 100644
index 00000000000..03014d23669
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/AbstractTrashFile.php
@@ -0,0 +1,22 @@
+<?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 Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\IFile;
+
+abstract class AbstractTrashFile extends AbstractTrash implements IFile, ITrash {
+	public function put($data) {
+		throw new Forbidden();
+	}
+
+	public function setName($name) {
+		throw new Forbidden();
+	}
+}
diff --git a/apps/files_trashbin/lib/Sabre/AbstractTrashFolder.php b/apps/files_trashbin/lib/Sabre/AbstractTrashFolder.php
new file mode 100644
index 00000000000..9e8f67f4db6
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/AbstractTrashFolder.php
@@ -0,0 +1,63 @@
+<?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 OCA\Files_Trashbin\Trash\ITrashItem;
+use OCP\Files\FileInfo;
+use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\ICollection;
+
+abstract class AbstractTrashFolder extends AbstractTrash implements ICollection, ITrash {
+	public function getChildren(): array {
+		$entries = $this->trashManager->listTrashFolder($this->data);
+
+		$children = array_map(function (ITrashItem $entry) {
+			if ($entry->getType() === FileInfo::TYPE_FOLDER) {
+				return new TrashFolderFolder($this->trashManager, $entry);
+			}
+			return new TrashFolderFile($this->trashManager, $entry);
+		}, $entries);
+
+		return $children;
+	}
+
+	public function getChild($name): ITrash {
+		$entries = $this->getChildren();
+
+		foreach ($entries as $entry) {
+			if ($entry->getName() === $name) {
+				return $entry;
+			}
+		}
+
+		throw new NotFound();
+	}
+
+	public function childExists($name): bool {
+		try {
+			$this->getChild($name);
+			return true;
+		} catch (NotFound $e) {
+			return false;
+		}
+	}
+
+	public function setName($name) {
+		throw new Forbidden();
+	}
+
+	public function createFile($name, $data = null) {
+		throw new Forbidden();
+	}
+
+	public function createDirectory($name) {
+		throw new Forbidden();
+	}
+}
diff --git a/apps/files_trashbin/lib/Sabre/ITrash.php b/apps/files_trashbin/lib/Sabre/ITrash.php
new file mode 100644
index 00000000000..f37e1ccd9c3
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/ITrash.php
@@ -0,0 +1,32 @@
+<?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 OCP\Files\FileInfo;
+use OCP\IUser;
+
+interface ITrash {
+	public function restore(): bool;
+
+	public function getFilename(): string;
+
+	public function getOriginalLocation(): string;
+
+	public function getTitle(): string;
+
+	public function getDeletionTime(): int;
+
+	public function getDeletedBy(): ?IUser;
+
+	public function getSize(): int|float;
+
+	public function getFileId(): int;
+
+	public function getFileInfo(): FileInfo;
+}
diff --git a/apps/files_trashbin/lib/Sabre/RestoreFolder.php b/apps/files_trashbin/lib/Sabre/RestoreFolder.php
new file mode 100644
index 00000000000..781a28bbc25
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/RestoreFolder.php
@@ -0,0 +1,60 @@
+<?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 Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\ICollection;
+use Sabre\DAV\IMoveTarget;
+use Sabre\DAV\INode;
+
+class RestoreFolder implements ICollection, IMoveTarget {
+	public function createFile($name, $data = null) {
+		throw new Forbidden();
+	}
+
+	public function createDirectory($name) {
+		throw new Forbidden();
+	}
+
+	public function getChild($name) {
+		return null;
+	}
+
+	public function delete() {
+		throw new Forbidden();
+	}
+
+	public function getName() {
+		return 'restore';
+	}
+
+	public function setName($name) {
+		throw new Forbidden();
+	}
+
+	public function getLastModified(): int {
+		return 0;
+	}
+
+	public function getChildren(): array {
+		return [];
+	}
+
+	public function childExists($name): bool {
+		return false;
+	}
+
+	public function moveInto($targetName, $sourcePath, INode $sourceNode): bool {
+		if (!($sourceNode instanceof ITrash)) {
+			return false;
+		}
+
+		return $sourceNode->restore();
+	}
+}
diff --git a/apps/files_trashbin/lib/Sabre/RootCollection.php b/apps/files_trashbin/lib/Sabre/RootCollection.php
new file mode 100644
index 00000000000..8886dae0895
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/RootCollection.php
@@ -0,0 +1,51 @@
+<?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 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 {
+	public function __construct(
+		private ITrashManager $trashManager,
+		PrincipalBackend\BackendInterface $principalBackend,
+		IConfig $config,
+	) {
+		parent::__construct($principalBackend, 'principals/users');
+		$this->disableListing = !$config->getSystemValue('debug', false);
+	}
+
+	/**
+	 * This method returns a node for a principal.
+	 *
+	 * The passed array contains principal information, and is guaranteed to
+	 * at least contain a uri item. Other properties may or may not be
+	 * supplied by the authentication backend.
+	 *
+	 * @param array $principalInfo
+	 * @return INode
+	 */
+	public function getChildForPrincipal(array $principalInfo): TrashHome {
+		[, $name] = \Sabre\Uri\split($principalInfo['uri']);
+		$user = Server::get(IUserSession::class)->getUser();
+		if (is_null($user) || $name !== $user->getUID()) {
+			throw new \Sabre\DAV\Exception\Forbidden();
+		}
+		return new TrashHome($principalInfo, $this->trashManager, $user);
+	}
+
+	public function getName(): string {
+		return 'trashbin';
+	}
+}
diff --git a/apps/files_trashbin/lib/Sabre/TrashFile.php b/apps/files_trashbin/lib/Sabre/TrashFile.php
new file mode 100644
index 00000000000..29bcde769d9
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/TrashFile.php
@@ -0,0 +1,21 @@
+<?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 OCA\Files_Trashbin\Trashbin;
+
+class TrashFile extends AbstractTrashFile {
+	public function get() {
+		return $this->data->getStorage()->fopen(Trashbin::getTrashFilename($this->data->getInternalPath(), $this->getDeletionTime()), 'rb');
+	}
+
+	public function getName(): string {
+		return Trashbin::getTrashFilename($this->data->getName(), $this->getDeletionTime());
+	}
+}
diff --git a/apps/files_trashbin/lib/Sabre/TrashFolder.php b/apps/files_trashbin/lib/Sabre/TrashFolder.php
new file mode 100644
index 00000000000..e1c495bf08e
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/TrashFolder.php
@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\Files_Trashbin\Sabre;
+
+use OCA\Files_Trashbin\Trashbin;
+
+class TrashFolder extends AbstractTrashFolder {
+	public function getName(): string {
+		return Trashbin::getTrashFilename($this->data->getName(), $this->getDeletionTime());
+	}
+}
diff --git a/apps/files_trashbin/lib/Sabre/TrashFolderFile.php b/apps/files_trashbin/lib/Sabre/TrashFolderFile.php
new file mode 100644
index 00000000000..37e70b717ae
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/TrashFolderFile.php
@@ -0,0 +1,15 @@
+<?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;
+
+class TrashFolderFile extends AbstractTrashFile {
+	public function get() {
+		return $this->data->getStorage()->fopen($this->data->getInternalPath(), 'rb');
+	}
+}
diff --git a/apps/files_trashbin/lib/Sabre/TrashFolderFolder.php b/apps/files_trashbin/lib/Sabre/TrashFolderFolder.php
new file mode 100644
index 00000000000..1a5cb98e114
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/TrashFolderFolder.php
@@ -0,0 +1,12 @@
+<?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;
+
+class TrashFolderFolder extends AbstractTrashFolder {
+}
diff --git a/apps/files_trashbin/lib/Sabre/TrashHome.php b/apps/files_trashbin/lib/Sabre/TrashHome.php
new file mode 100644
index 00000000000..fc291c76f17
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/TrashHome.php
@@ -0,0 +1,71 @@
+<?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 OCA\Files_Trashbin\Trash\ITrashManager;
+use OCP\IUser;
+use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\ICollection;
+
+class TrashHome implements ICollection {
+	public function __construct(
+		private array $principalInfo,
+		private ITrashManager $trashManager,
+		private IUser $user,
+	) {
+	}
+
+	public function delete() {
+		throw new Forbidden();
+	}
+
+	public function getName(): string {
+		[, $name] = \Sabre\Uri\split($this->principalInfo['uri']);
+		return $name;
+	}
+
+	public function setName($name) {
+		throw new Forbidden('Permission denied to rename this trashbin');
+	}
+
+	public function createFile($name, $data = null) {
+		throw new Forbidden('Not allowed to create files in the trashbin');
+	}
+
+	public function createDirectory($name) {
+		throw new Forbidden('Not allowed to create folders in the trashbin');
+	}
+
+	public function getChild($name) {
+		if ($name === 'restore') {
+			return new RestoreFolder();
+		}
+		if ($name === 'trash') {
+			return new TrashRoot($this->user, $this->trashManager);
+		}
+
+		throw new NotFound();
+	}
+
+	public function getChildren(): array {
+		return [
+			new RestoreFolder(),
+			new TrashRoot($this->user, $this->trashManager)
+		];
+	}
+
+	public function childExists($name): bool {
+		return $name === 'restore' || $name === 'trash';
+	}
+
+	public function getLastModified(): int {
+		return 0;
+	}
+}
diff --git a/apps/files_trashbin/lib/Sabre/TrashRoot.php b/apps/files_trashbin/lib/Sabre/TrashRoot.php
new file mode 100644
index 00000000000..dd89583d9a1
--- /dev/null
+++ b/apps/files_trashbin/lib/Sabre/TrashRoot.php
@@ -0,0 +1,93 @@
+<?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 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;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\ICollection;
+
+class TrashRoot implements ICollection {
+
+	public function __construct(
+		private IUser $user,
+		private ITrashManager $trashManager,
+	) {
+	}
+
+	public function delete() {
+		if (!ConfigService::getDeleteFromTrashEnabled()) {
+			throw new Forbidden('Not allowed to delete items from the trash bin');
+		}
+
+		Trashbin::deleteAll();
+		foreach ($this->trashManager->listTrashRoot($this->user) as $trashItem) {
+			$this->trashManager->removeItem($trashItem);
+		}
+	}
+
+	public function getName(): string {
+		return 'trash';
+	}
+
+	public function setName($name) {
+		throw new Forbidden('Permission denied to rename this trashbin');
+	}
+
+	public function createFile($name, $data = null) {
+		throw new Forbidden('Not allowed to create files in the trashbin');
+	}
+
+	public function createDirectory($name) {
+		throw new Forbidden('Not allowed to create folders in the trashbin');
+	}
+
+	public function getChildren(): array {
+		$entries = $this->trashManager->listTrashRoot($this->user);
+
+		$children = array_map(function (ITrashItem $entry) {
+			if ($entry->getType() === FileInfo::TYPE_FOLDER) {
+				return new TrashFolder($this->trashManager, $entry);
+			}
+			return new TrashFile($this->trashManager, $entry);
+		}, $entries);
+
+		return $children;
+	}
+
+	public function getChild($name): ITrash {
+		$entries = $this->getChildren();
+
+		foreach ($entries as $entry) {
+			if ($entry->getName() === $name) {
+				return $entry;
+			}
+		}
+
+		throw new NotFound();
+	}
+
+	public function childExists($name): bool {
+		try {
+			$this->getChild($name);
+			return true;
+		} catch (NotFound $e) {
+			return false;
+		}
+	}
+
+	public function getLastModified(): int {
+		return 0;
+	}
+}
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;
+	}
+}