2 files changed, 41 insertions, 0 deletions
diff --git a/lib/private/FilesMetadata/Model/FilesMetadata.php b/lib/private/FilesMetadata/Model/FilesMetadata.php
index 84cb177bc37..3de72357431 100644
--- a/lib/private/FilesMetadata/Model/FilesMetadata.php
+++ b/lib/private/FilesMetadata/Model/FilesMetadata.php
@@ -156,6 +156,23 @@ class FilesMetadata implements IFilesMetadata {
 		$this->metadata[$key]->setEditPermission($permission);
 	}
 
+
+	public function getEtag(string $key): string {
+		if (!array_key_exists($key, $this->metadata)) {
+			throw new FilesMetadataNotFoundException();
+		}
+
+		return $this->metadata[$key]->getEtag();
+	}
+
+	public function setEtag(string $key, string $etag): void {
+		if (!array_key_exists($key, $this->metadata)) {
+			throw new FilesMetadataNotFoundException();
+		}
+
+		$this->metadata[$key]->setEtag($etag);
+	}
+
 	/**
 	 * @param string $key metadata key
 	 *
diff --git a/lib/private/FilesMetadata/Model/MetadataValueWrapper.php b/lib/private/FilesMetadata/Model/MetadataValueWrapper.php
index 90f1554180d..70dec89650a 100644
--- a/lib/private/FilesMetadata/Model/MetadataValueWrapper.php
+++ b/lib/private/FilesMetadata/Model/MetadataValueWrapper.php
@@ -38,6 +38,7 @@ class MetadataValueWrapper implements IMetadataValueWrapper {
 	private string $type;
 	/** @var string|int|float|bool|array|string[]|int[] */
 	private mixed $value = null;
+	private string $etag = '';
 	private bool $indexed = false;
 	private int $editPermission = self::EDIT_FORBIDDEN;
 
@@ -351,6 +352,27 @@ class MetadataValueWrapper implements IMetadataValueWrapper {
 	}
 
 	/**
+	 * @inheritDoc
+	 * @return string stored etag
+	 * @since 29.0.0
+	 */
+	public function getEtag(): string {
+		return $this->etag;
+	}
+
+	/**
+	 * @param string $etag etag value
+	 *
+	 * @inheritDoc
+	 * @return self
+	 * @since 29.0.0
+	 */
+	public function setEtag(string $etag): self {
+		$this->etag = $etag;
+		return $this;
+	}
+
+	/**
 	 * @param bool $indexed TRUE to set the stored value as an indexed value
 	 *
 	 * @inheritDoc
@@ -405,6 +427,7 @@ class MetadataValueWrapper implements IMetadataValueWrapper {
 	public function import(array $data): self {
 		$this->value = $data['value'] ?? null;
 		$this->type = $data['type'] ?? '';
+		$this->setEtag($data['etag'] ?? '');
 		$this->setIndexed($data['indexed'] ?? false);
 		$this->setEditPermission($data['editPermission'] ?? self::EDIT_FORBIDDEN);
 		return $this;
@@ -414,6 +437,7 @@ class MetadataValueWrapper implements IMetadataValueWrapper {
 		return [
 			'value' => ($emptyValues) ? null : $this->value,
 			'type' => $this->getType(),
+			'etag' => $this->getEtag(),
 			'indexed' => $this->isIndexed(),
 			'editPermission' => $this->getEditPermission()
 		];