7 files changed, 118 insertions, 224 deletions

diff --git a/apps/files_versions/lib/Sabre/Plugin.php b/apps/files_versions/lib/Sabre/Plugin.php
index 5a127b4251d..984c4a36e5b 100644
--- a/apps/files_versions/lib/Sabre/Plugin.php
+++ b/apps/files_versions/lib/Sabre/Plugin.php
@@ -3,45 +3,39 @@
 declare(strict_types=1);
 
 /**
- * @copyright Copyright (c) 2019, Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- * @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: 2019 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 namespace OCA\Files_Versions\Sabre;
 
 use OC\AppFramework\Http\Request;
+use OCA\DAV\Connector\Sabre\FilesPlugin;
+use OCP\IPreview;
 use OCP\IRequest;
 use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\INode;
+use Sabre\DAV\PropFind;
+use Sabre\DAV\PropPatch;
 use Sabre\DAV\Server;
 use Sabre\DAV\ServerPlugin;
 use Sabre\HTTP\RequestInterface;
 use Sabre\HTTP\ResponseInterface;
 
 class Plugin extends ServerPlugin {
+	private Server $server;
 
-	/** @var Server */
-	private $server;
-	/** @var IRequest */
-	private $request;
+	public const LABEL = 'label';
 
-	public function __construct(IRequest $request) {
+	public const AUTHOR = 'author';
+
+	public const VERSION_LABEL = '{http://nextcloud.org/ns}version-label';
+
+	public const VERSION_AUTHOR = '{http://nextcloud.org/ns}version-author'; // dav property for author
+
+	public function __construct(
+		private IRequest $request,
+		private IPreview $previewManager,
+	) {
 		$this->request = $request;
 	}
 
@@ -49,6 +43,8 @@ class Plugin extends ServerPlugin {
 		$this->server = $server;
 
 		$server->on('afterMethod:GET', [$this, 'afterGet']);
+		$server->on('propFind', [$this, 'propFind']);
+		$server->on('propPatch', [$this, 'propPatch']);
 	}
 
 	public function afterGet(RequestInterface $request, ResponseInterface $response) {
@@ -81,4 +77,23 @@ class Plugin extends ServerPlugin {
 				. '; filename="' . rawurlencode($filename) . '"');
 		}
 	}
+
+	public function propFind(PropFind $propFind, INode $node): void {
+		if ($node instanceof VersionFile) {
+			$propFind->handle(self::VERSION_LABEL, fn () => $node->getMetadataValue(self::LABEL));
+			$propFind->handle(self::VERSION_AUTHOR, fn () => $node->getMetadataValue(self::AUTHOR));
+			$propFind->handle(
+				FilesPlugin::HAS_PREVIEW_PROPERTYNAME,
+				fn (): string => $this->previewManager->isMimeSupported($node->getContentType()) ? 'true' : 'false',
+			);
+		}
+	}
+
+	public function propPatch($path, PropPatch $propPatch): void {
+		$node = $this->server->tree->getNodeForPath($path);
+
+		if ($node instanceof VersionFile) {
+			$propPatch->handle(self::VERSION_LABEL, fn (string $label) => $node->setMetadataValue(self::LABEL, $label));
+		}
+	}
 }
diff --git a/apps/files_versions/lib/Sabre/RestoreFolder.php b/apps/files_versions/lib/Sabre/RestoreFolder.php
index 31d87cc7112..7904b098a4f 100644
--- a/apps/files_versions/lib/Sabre/RestoreFolder.php
+++ b/apps/files_versions/lib/Sabre/RestoreFolder.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_Versions\Sabre;
 
diff --git a/apps/files_versions/lib/Sabre/RootCollection.php b/apps/files_versions/lib/Sabre/RootCollection.php
index 835df5930bc..1e7129f23da 100644
--- a/apps/files_versions/lib/Sabre/RootCollection.php
+++ b/apps/files_versions/lib/Sabre/RootCollection.php
@@ -1,25 +1,8 @@
 <?php
+
 /**
- * @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_Versions\Sabre;
 
@@ -34,33 +17,16 @@ use Sabre\DAVACL\PrincipalBackend;
 
 class RootCollection extends AbstractPrincipalCollection {
 
-	/** @var IRootFolder */
-	private $rootFolder;
-
-	/** @var IUserManager */
-	private $userManager;
-
-	/** @var IVersionManager */
-	private $versionManager;
-
-	/** @var IUserSession */
-	private $userSession;
-
 	public function __construct(
 		PrincipalBackend\BackendInterface $principalBackend,
-		IRootFolder $rootFolder,
+		private IRootFolder $rootFolder,
 		IConfig $config,
-		IUserManager $userManager,
-		IVersionManager $versionManager,
-		IUserSession $userSession
+		private IUserManager $userManager,
+		private IVersionManager $versionManager,
+		private IUserSession $userSession,
 	) {
 		parent::__construct($principalBackend, 'principals/users');
 
-		$this->rootFolder = $rootFolder;
-		$this->userManager = $userManager;
-		$this->versionManager = $versionManager;
-		$this->userSession = $userSession;
-
 		$this->disableListing = !$config->getSystemValue('debug', false);
 	}
 
diff --git a/apps/files_versions/lib/Sabre/VersionCollection.php b/apps/files_versions/lib/Sabre/VersionCollection.php
index 946ac9baad7..375d5cf99f2 100644
--- a/apps/files_versions/lib/Sabre/VersionCollection.php
+++ b/apps/files_versions/lib/Sabre/VersionCollection.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_Versions\Sabre;
 
@@ -36,19 +18,11 @@ use Sabre\DAV\ICollection;
 
 class VersionCollection implements ICollection {
 
-	/** @var File */
-	private $file;
-
-	/** @var IUser */
-	private $user;
-
-	/** @var IVersionManager */
-	private $versionManager;
-
-	public function __construct(File $file, IUser $user, IVersionManager $versionManager) {
-		$this->file = $file;
-		$this->user = $user;
-		$this->versionManager = $versionManager;
+	public function __construct(
+		private File $file,
+		private IUser $user,
+		private IVersionManager $versionManager,
+	) {
 	}
 
 	public function createFile($name, $data = null) {
diff --git a/apps/files_versions/lib/Sabre/VersionFile.php b/apps/files_versions/lib/Sabre/VersionFile.php
index b7c7e6db1a6..faa03473648 100644
--- a/apps/files_versions/lib/Sabre/VersionFile.php
+++ b/apps/files_versions/lib/Sabre/VersionFile.php
@@ -3,29 +3,16 @@
 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_Versions\Sabre;
 
+use OCA\Files_Versions\Versions\IDeletableVersionBackend;
+use OCA\Files_Versions\Versions\IMetadataVersion;
+use OCA\Files_Versions\Versions\IMetadataVersionBackend;
+use OCA\Files_Versions\Versions\INameableVersion;
+use OCA\Files_Versions\Versions\INameableVersionBackend;
 use OCA\Files_Versions\Versions\IVersion;
 use OCA\Files_Versions\Versions\IVersionManager;
 use OCP\Files\NotFoundException;
@@ -34,15 +21,10 @@ use Sabre\DAV\Exception\NotFound;
 use Sabre\DAV\IFile;
 
 class VersionFile implements IFile {
-	/** @var IVersion */
-	private $version;
-
-	/** @var IVersionManager */
-	private $versionManager;
-
-	public function __construct(IVersion $version, IVersionManager $versionManager) {
-		$this->version = $version;
-		$this->versionManager = $versionManager;
+	public function __construct(
+		private IVersion $version,
+		private IVersionManager $versionManager,
+	) {
 	}
 
 	public function put($data) {
@@ -65,12 +47,20 @@ class VersionFile implements IFile {
 		return (string)$this->version->getRevisionId();
 	}
 
-	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->version->getSize();
 	}
 
 	public function delete() {
-		throw new Forbidden();
+		if ($this->versionManager instanceof IDeletableVersionBackend) {
+			$this->versionManager->deleteVersion($this->version);
+		} else {
+			throw new Forbidden();
+		}
 	}
 
 	public function getName(): string {
@@ -81,6 +71,29 @@ class VersionFile implements IFile {
 		throw new Forbidden();
 	}
 
+	public function setMetadataValue(string $key, string $value): bool {
+		$backend = $this->version->getBackend();
+
+		if ($backend instanceof IMetadataVersionBackend) {
+			$backend->setMetadataValue($this->version->getSourceFile(), $this->version->getTimestamp(), $key, $value);
+			return true;
+		} elseif ($key === 'label' && $backend instanceof INameableVersionBackend) {
+			$backend->setVersionLabel($this->version, $value);
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+	public function getMetadataValue(string $key): ?string {
+		if ($this->version instanceof IMetadataVersion) {
+			return $this->version->getMetadataValue($key);
+		} elseif ($key === 'label' && $this->version instanceof INameableVersion) {
+			return $this->version->getLabel();
+		}
+		return null;
+	}
+
 	public function getLastModified(): int {
 		return $this->version->getTimestamp();
 	}
diff --git a/apps/files_versions/lib/Sabre/VersionHome.php b/apps/files_versions/lib/Sabre/VersionHome.php
index 13505d9a96c..07ac491f2a1 100644
--- a/apps/files_versions/lib/Sabre/VersionHome.php
+++ b/apps/files_versions/lib/Sabre/VersionHome.php
@@ -1,25 +1,8 @@
 <?php
+
 /**
- * @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_Versions\Sabre;
 
@@ -32,23 +15,12 @@ use Sabre\DAV\ICollection;
 
 class VersionHome implements ICollection {
 
-	/** @var array */
-	private $principalInfo;
-
-	/** @var IRootFolder */
-	private $rootFolder;
-
-	/** @var IUserManager */
-	private $userManager;
-
-	/** @var IVersionManager */
-	private $versionManager;
-
-	public function __construct(array $principalInfo, IRootFolder $rootFolder, IUserManager $userManager, IVersionManager $versionManager) {
-		$this->principalInfo = $principalInfo;
-		$this->rootFolder = $rootFolder;
-		$this->userManager = $userManager;
-		$this->versionManager = $versionManager;
+	public function __construct(
+		private array $principalInfo,
+		private IRootFolder $rootFolder,
+		private IUserManager $userManager,
+		private IVersionManager $versionManager,
+	) {
 	}
 
 	private function getUser() {
diff --git a/apps/files_versions/lib/Sabre/VersionRoot.php b/apps/files_versions/lib/Sabre/VersionRoot.php
index 69ac12ed8e9..7f7014fbee3 100644
--- a/apps/files_versions/lib/Sabre/VersionRoot.php
+++ b/apps/files_versions/lib/Sabre/VersionRoot.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_Versions\Sabre;
 
@@ -36,19 +18,11 @@ use Sabre\DAV\ICollection;
 
 class VersionRoot implements ICollection {
 
-	/** @var IUser */
-	private $user;
-
-	/** @var IRootFolder */
-	private $rootFolder;
-
-	/** @var IVersionManager */
-	private $versionManager;
-
-	public function __construct(IUser $user, IRootFolder $rootFolder, IVersionManager $versionManager) {
-		$this->user = $user;
-		$this->rootFolder = $rootFolder;
-		$this->versionManager = $versionManager;
+	public function __construct(
+		private IUser $user,
+		private IRootFolder $rootFolder,
+		private IVersionManager $versionManager,
+	) {
 	}
 
 	public function delete() {
@@ -75,14 +49,12 @@ class VersionRoot implements ICollection {
 		$userFolder = $this->rootFolder->getUserFolder($this->user->getUID());
 
 		$fileId = (int)$name;
-		$nodes = $userFolder->getById($fileId);
+		$node = $userFolder->getFirstNodeById($fileId);
 
-		if ($nodes === []) {
+		if (!$node) {
 			throw new NotFound();
 		}
 
-		$node = array_pop($nodes);
-
 		if (!$node instanceof File) {
 			throw new NotFound();
 		}