compare cached filesize on download

Signed-off-by: Maxence Lange <maxence@artificial-owl.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/apps/dav/lib/Connector/Sabre/File.php b/apps/dav/lib/Connector/Sabre/File.php
index 94632b265db..3a871b06259 100644
--- a/apps/dav/lib/Connector/Sabre/File.php
+++ b/apps/dav/lib/Connector/Sabre/File.php
@@ -45,11 +45,11 @@ use OC\Files\Stream\HashWrapper;
 use OC\Files\View;
 use OC\Metadata\FileMetadata;
 use OCA\DAV\AppInfo\Application;
+use OCA\DAV\Connector\Sabre\Exception\BadGateway;
 use OCA\DAV\Connector\Sabre\Exception\EntityTooLarge;
 use OCA\DAV\Connector\Sabre\Exception\FileLocked;
 use OCA\DAV\Connector\Sabre\Exception\Forbidden as DAVForbiddenException;
 use OCA\DAV\Connector\Sabre\Exception\UnsupportedMediaType;
-use OCA\DAV\Connector\Sabre\Exception\BadGateway;
 use OCP\Encryption\Exceptions\GenericEncryptionException;
 use OCP\Files\EntityTooLargeException;
 use OCP\Files\FileInfo;
@@ -491,9 +491,21 @@ class File extends Node implements IFile {
 			} catch (\Exception $e) {
 				$this->convertToSabreException($e);
 			}
+
 			if ($res === false) {
 				throw new ServiceUnavailable($this->l10n->t('Could not open file'));
 			}
+
+			// comparing current file size with the one in DB
+			// if different, fix DB and refresh cache.
+			if ($this->getSize() !== $this->fileView->filesize($this->getPath())) {
+				$logger = \OC::$server->get(LoggerInterface::class);
+				$logger->warning('fixing cached size of file id=' . $this->getId());
+
+				$this->getFileInfo()->getStorage()->getUpdater()->update($this->getFileInfo()->getInternalPath());
+				$this->refreshInfo();
+			}
+
 			return $res;
 		} catch (GenericEncryptionException $e) {
 			// returning 503 will allow retry of the operation at a later point in time