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Put storage cache initalization in a transaction #35754

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Put storage cache initalization in a transaction #35754

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42 changes: 29 additions & 13 deletions lib/private/Files/Cache/Storage.php
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Original file line number Diff line number Diff line change
Expand Up @@ -29,8 +29,12 @@
*/
namespace OC\Files\Cache;

use OC\DB\Exceptions\DbalException;
use OCP\AppFramework\Db\TTransactional;
use OCP\DB\Exception;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\Files\Storage\IStorage;
use OCP\IDBConnection;
use Psr\Log\LoggerInterface;

/**
Expand All @@ -50,6 +54,8 @@ class Storage {
private $storageId;
private $numericId;

use TTransactional;

/**
* @return StorageGlobal
*/
Expand All @@ -65,29 +71,39 @@ public static function getGlobalCache() {
* @param bool $isAvailable
* @throws \RuntimeException
*/
public function __construct($storage, $isAvailable = true) {
public function __construct($storage, bool $isAvailable = true) {
if ($storage instanceof IStorage) {
$this->storageId = $storage->getId();
} else {
$this->storageId = $storage;
}
$this->storageId = self::adjustStorageId($this->storageId);

if ($row = self::getStorageById($this->storageId)) {
$this->numericId = (int)$row['numeric_id'];
} else {
$connection = \OC::$server->getDatabaseConnection();
$available = $isAvailable ? 1 : 0;
if ($connection->insertIfNotExist('*PREFIX*storages', ['id' => $this->storageId, 'available' => $available])) {
$this->numericId = $connection->lastInsertId('*PREFIX*storages');
$dbConnection = \OC::$server->get(IDBConnection::class);

$this->numericId = $this->atomic(function () use ($isAvailable, $dbConnection) {
if ($row = self::getStorageById($this->storageId)) {
return (int)$row['numeric_id'];
} else {
if ($row = self::getStorageById($this->storageId)) {
$this->numericId = (int)$row['numeric_id'];
} else {
throw new \RuntimeException('Storage could neither be inserted nor be selected from the database: ' . $this->storageId);
$qb = $dbConnection->getQueryBuilder();
try {
$qb->insert('storages')
->values(['id' => $qb->createNamedParameter($this->storageId), 'available' => $qb->createNamedParameter($isAvailable ? 1 : 0)])
->executeStatement();
return $qb->getLastInsertId();
} catch (DbalException $e) {
if ($e->getReason() === Exception::REASON_UNIQUE_CONSTRAINT_VIOLATION) {
// If a storage already exists with this ID, return it
if ($row = self::getStorageById($this->storageId)) {
return (int)$row['numeric_id'];
} else {
throw new \RuntimeException('Storage could neither be inserted nor be selected from the database: ' . $this->storageId);
}
}
throw $e;
}
}
}
}, $dbConnection);
}

/**
Expand Down