Skip to content

[stable19] Restrict query when searching for versions of trashbin files #23885

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
skjnldsv merged 1 commit into from
Nov 4, 2020
Merged

[stable19] Restrict query when searching for versions of trashbin files #23885

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
57 changes: 43 additions & 14 deletions apps/files_trashbin/lib/Trashbin.php
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,9 @@

namespace OCA\Files_Trashbin;

use OC\Files\Cache\Cache;
use OC\Files\Cache\CacheEntry;
use OC\Files\Cache\CacheQueryBuilder;
use OC\Files\Filesystem;
use OC\Files\ObjectStore\ObjectStoreStorage;
use OC\Files\View;
Expand Down Expand Up @@ -917,33 +920,59 @@ private static function getVersionsFromTrash($filename, $timestamp, $user) {
$view = new View('/' . $user . '/files_trashbin/versions');
$versions = [];

/** @var \OC\Files\Storage\Storage $storage */
[$storage,] = $view->resolvePath('/');

//force rescan of versions, local storage may not have updated the cache
if (!self::$scannedVersions) {
/** @var \OC\Files\Storage\Storage $storage */
[$storage,] = $view->resolvePath('/');
$storage->getScanner()->scan('files_trashbin/versions');
self::$scannedVersions = true;
}

$pattern = \OC::$server->getDatabaseConnection()->escapeLikeParameter(basename($filename));
if ($timestamp) {
// fetch for old versions
$matches = $view->searchRaw($filename . '.v%.d' . $timestamp);
$offset = -strlen($timestamp) - 2;
$escapedTimestamp = \OC::$server->getDatabaseConnection()->escapeLikeParameter($timestamp);
$pattern .= '.v%.d' . $escapedTimestamp;
$offset = -strlen($escapedTimestamp) - 2;
} else {
$matches = $view->searchRaw($filename . '.v%');
$pattern .= '.v%';
}

if (is_array($matches)) {
foreach ($matches as $ma) {
if ($timestamp) {
$parts = explode('.v', substr($ma['path'], 0, $offset));
$versions[] = end($parts);
} else {
$parts = explode('.v', $ma);
$versions[] = end($parts);
}
// Manually fetch all versions from the file cache to be able to filter them by their parent
$cache = $storage->getCache('');
$query = new CacheQueryBuilder(
\OC::$server->getDatabaseConnection(),
\OC::$server->getSystemConfig(),
\OC::$server->getLogger(),
$cache
);
$normalizedParentPath = ltrim(Filesystem::normalizePath(dirname('files_trashbin/versions/'. $filename)), '/');
$parentId = $cache->getId($normalizedParentPath);
if ($parentId === -1) {
return [];
}

$query->selectFileCache()
->whereStorageId()
->andWhere($query->expr()->eq('parent', $query->createNamedParameter($parentId)))
->andWhere($query->expr()->iLike('name', $query->createNamedParameter($pattern)));

/** @var CacheEntry[] $matches */
$matches = array_map(function (array $data) {
return Cache::cacheEntryFromData($data, \OC::$server->getMimeTypeLoader());
}, $query->execute()->fetchAll());

foreach ($matches as $ma) {
if ($timestamp) {
$parts = explode('.v', substr($ma['path'], 0, $offset));
$versions[] = end($parts);
} else {
$parts = explode('.v', $ma['path']);
$versions[] = end($parts);
}
}

return $versions;
}

Expand Down