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[stable26] fix: Validate that we have a proper distributed cache configured #41372

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merged 1 commit into from Nov 10, 2023
Merged

[stable26] fix: Validate that we have a proper distributed cache configured #41372

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10 changes: 9 additions & 1 deletion apps/dav/lib/Upload/ChunkingV2Plugin.php
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Expand Up @@ -30,6 +30,8 @@
use OC\Files\Filesystem;
use OC\Files\ObjectStore\ObjectStoreStorage;
use OC\Files\View;
use OC\Memcache\Memcached;
use OC\Memcache\Redis;
use OC_Hook;
use OCA\DAV\Connector\Sabre\Directory;
use OCA\DAV\Connector\Sabre\File;
Expand All @@ -40,6 +42,7 @@
use OCP\Files\StorageInvalidException;
use OCP\ICache;
use OCP\ICacheFactory;
use OCP\IConfig;
use OCP\Lock\ILockingProvider;
use Sabre\DAV\Exception\BadRequest;
use Sabre\DAV\Exception\InsufficientStorage;
Expand Down Expand Up @@ -272,6 +275,11 @@ public function beforeDelete(RequestInterface $request, ResponseInterface $respo
* @throws StorageInvalidException
*/
private function checkPrerequisites(bool $checkUploadMetadata = true): void {
$distributedCacheConfig = \OCP\Server::get(IConfig::class)->getSystemValue('memcache.distributed', null);

if ($distributedCacheConfig === null || (!$this->cache instanceof Redis && !$this->cache instanceof Memcached)) {
throw new BadRequest('Skipping chunking v2 since no proper distributed cache is available');
}
if (!$this->uploadFolder instanceof UploadFolder || empty($this->server->httpRequest->getHeader(self::DESTINATION_HEADER))) {
throw new BadRequest('Skipping chunked file writing as the destination header was not passed');
}
Expand All @@ -284,7 +292,7 @@ private function checkPrerequisites(bool $checkUploadMetadata = true): void {

if ($checkUploadMetadata) {
if ($this->uploadId === null || $this->uploadPath === null) {
throw new PreconditionFailed('Missing metadata for chunked upload');
throw new PreconditionFailed('Missing metadata for chunked upload. The distributed cache does not hold the information of previous requests.');
}
}
}
Expand Down