Merge pull request #22200 from owncloud/node-checksum-resolvefileinfo

Make sure fileinfo exists when calling getCheckSum in node API

lib/private/files/node/file.php

@@ -169,6 +169,6 @@ class File extends Node implements \OCP\Files\File {
 	 * @inheritdoc
 	 */
 	public function getChecksum() {
-		return $this->fileInfo->getChecksum();
+		return $this->getFileInfo()->getChecksum();
 	}
 }

lib/public/files/file.php

@@ -84,4 +84,14 @@ interface File extends Node {
 	 * @since 6.0.0
 	 */
 	public function hash($type, $raw = false);
+
+	/**
+	 * Get the stored checksum for this file
+	 *
+	 * @return string
+	 * @since 9.0.0
+	 * @throws InvalidPathException
+	 * @throws NotFoundException
+	 */
+	public function getChecksum();
 }