Allow to delete a version through DAV

Signed-off-by: Louis Chemineau <louis@chmn.me>

3 files changed, 53 insertions, 1 deletions

diff --git a/apps/files_versions/lib/Versions/IDeletableVersionBackend.php b/apps/files_versions/lib/Versions/IDeletableVersionBackend.php
new file mode 100644
index 00000000000..abb43d09d90
--- /dev/null
+++ b/apps/files_versions/lib/Versions/IDeletableVersionBackend.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2022 Louis Chmn <louis@chmn.me>
+ *
+ * @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_Versions\Versions;
+
+/**
+ * @since 26.0.0
+ */
+interface IDeletableVersionBackend {
+	/**
+	 * Delete a version.
+	 *
+	 * @since 26.0.0
+	 */
+	public function deleteVersion(IVersion $version): void;
+}
diff --git a/apps/files_versions/lib/Versions/LegacyVersionsBackend.php b/apps/files_versions/lib/Versions/LegacyVersionsBackend.php
index 90c7cb930d5..d5ca4d2a11c 100644
--- a/apps/files_versions/lib/Versions/LegacyVersionsBackend.php
+++ b/apps/files_versions/lib/Versions/LegacyVersionsBackend.php
@@ -187,4 +187,13 @@ class LegacyVersionsBackend implements IVersionBackend, INameableVersionBackend,
 		$versionEntity->setLabel($label ?? '');
 		$this->versionsMapper->update($versionEntity);
 	}
+
+	public function deleteVersion(IVersion $version): void {
+		Storage::deleteRevision($version->getVersionPath(), $version->getRevisionId());
+		$versionEntity = $this->versionsMapper->findVersionForFileId(
+			$version->getSourceFile()->getId(),
+			$version->getTimestamp(),
+		);
+		$this->versionsMapper->delete($versionEntity);
+	}
 }
diff --git a/apps/files_versions/lib/Versions/VersionManager.php b/apps/files_versions/lib/Versions/VersionManager.php
index 4787de7fdac..bfae0937df8 100644
--- a/apps/files_versions/lib/Versions/VersionManager.php
+++ b/apps/files_versions/lib/Versions/VersionManager.php
@@ -30,7 +30,7 @@ use OCP\Files\FileInfo;
 use OCP\Files\Storage\IStorage;
 use OCP\IUser;
 
-class VersionManager implements IVersionManager, INameableVersionBackend {
+class VersionManager implements IVersionManager, INameableVersionBackend, IDeletableVersionBackend {
 	/** @var (IVersionBackend[])[] */
 	private $backends = [];
 
@@ -117,4 +117,11 @@ class VersionManager implements IVersionManager, INameableVersionBackend {
 			$backend->setVersionLabel($version, $label);
 		}
 	}
+
+	public function deleteVersion(IVersion $version): void {
+		$backend = $this->getBackendForStorage($version->getSourceFile()->getStorage());
+		if ($backend instanceof IDeletableVersionBackend) {
+			$backend->deleteVersion($version);
+		}
+	}
 }