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[stable27] fix: Avoid failing to update the current version entry if there is none #38970

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merged 4 commits into from
Jun 27, 2023
Merged

[stable27] fix: Avoid failing to update the current version entry if there is none #38970

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ea30d11
fix: Avoid failing to update the current version entry if there is none
juliushaertl Jun 13, 2023
e8a2847
Handle previousNode size === 0 on version creation
artonge Jun 21, 2023
9d34895
fix: Add logging statement for cases when updating the version fails
juliushaertl Jun 21, 2023
af0f114
Do not create a new version if previousNode has the same mtime
artonge Jun 22, 2023
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50 changes: 34 additions & 16 deletions apps/files_versions/lib/Listener/FileEventsListener.php
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,7 @@
use OCA\Files_Versions\Db\VersionsMapper;
use OCA\Files_Versions\Storage;
use OCP\AppFramework\Db\DoesNotExistException;
use OCP\DB\Exception;
use OCP\EventDispatcher\Event;
use OCP\EventDispatcher\IEventListener;
use OCP\Files\Events\Node\BeforeNodeCopiedEvent;
Expand All @@ -57,6 +58,7 @@
use OCP\Files\IMimeTypeLoader;
use OCP\Files\IRootFolder;
use OCP\Files\Node;
use Psr\Log\LoggerInterface;

class FileEventsListener implements IEventListener {
private IRootFolder $rootFolder;
Expand All @@ -74,15 +76,18 @@ class FileEventsListener implements IEventListener {
*/
private array $versionsDeleted = [];
private IMimeTypeLoader $mimeTypeLoader;
private LoggerInterface $logger;

public function __construct(
IRootFolder $rootFolder,
VersionsMapper $versionsMapper,
IMimeTypeLoader $mimeTypeLoader
IMimeTypeLoader $mimeTypeLoader,
LoggerInterface $logger,
) {
$this->rootFolder = $rootFolder;
$this->versionsMapper = $versionsMapper;
$this->mimeTypeLoader = $mimeTypeLoader;
$this->logger = $logger;
}

public function handle(Event $event): void {
Expand Down Expand Up @@ -226,24 +231,37 @@ public function post_write_hook(Node $node): void {
return;
}

if ($writeHookInfo['versionCreated'] && $node->getMTime() !== $writeHookInfo['previousNode']->getMTime()) {
if (
($writeHookInfo['versionCreated'] || $writeHookInfo['previousNode']->getSize() === 0) &&
$node->getMTime() !== $writeHookInfo['previousNode']->getMTime()
) {
// If a new version was created, insert a version in the DB for the current content.
// Unless both versions have the same mtime.
$versionEntity = new VersionEntity();
$versionEntity->setFileId($node->getId());
$versionEntity->setTimestamp($node->getMTime());
$versionEntity->setSize($node->getSize());
$versionEntity->setMimetype($this->mimeTypeLoader->getId($node->getMimetype()));
$versionEntity->setMetadata([]);
$this->versionsMapper->insert($versionEntity);
$this->created($node);
} else {
// If no new version was stored in the FS, no new version should be added in the DB.
// So we simply update the associated version.
$currentVersionEntity = $this->versionsMapper->findVersionForFileId($node->getId(), $writeHookInfo['previousNode']->getMtime());
$currentVersionEntity->setTimestamp($node->getMTime());
$currentVersionEntity->setSize($node->getSize());
$currentVersionEntity->setMimetype($this->mimeTypeLoader->getId($node->getMimetype()));
$this->versionsMapper->update($currentVersionEntity);
try {
// If no new version was stored in the FS, no new version should be added in the DB.
// So we simply update the associated version.
$currentVersionEntity = $this->versionsMapper->findVersionForFileId($node->getId(), $writeHookInfo['previousNode']->getMtime());
$currentVersionEntity->setTimestamp($node->getMTime());
$currentVersionEntity->setSize($node->getSize());
$currentVersionEntity->setMimetype($this->mimeTypeLoader->getId($node->getMimetype()));
$this->versionsMapper->update($currentVersionEntity);
} catch (Exception $e) {
$this->logger->error('Failed to update existing version for ' . $node->getPath(), [
'exception' => $e,
'versionCreated' => $writeHookInfo['versionCreated'],
'previousNode' => [
'size' => $writeHookInfo['previousNode']->getSize(),
'mtime' => $writeHookInfo['previousNode']->getMTime(),
],
'node' => [
'size' => $node->getSize(),
'mtime' => $node->getMTime(),
]
]);
throw $e;
}
}

unset($this->writeHookInfo[$node->getId()]);
Expand Down