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- <?php
- namespace OC\Repair;
- use Doctrine\DBAL\Exception\DriverException;
- use OCP\IConfig;
- use OCP\IDBConnection;
- use OCP\Migration\IOutput;
- use OCP\Migration\IRepairStep;
- use Psr\Log\LoggerInterface;
- class Collation implements IRepairStep {
-
- protected $config;
- protected LoggerInterface $logger;
-
- protected $connection;
-
- protected $ignoreFailures;
-
- public function __construct(
- IConfig $config,
- LoggerInterface $logger,
- IDBConnection $connection,
- $ignoreFailures
- ) {
- $this->connection = $connection;
- $this->config = $config;
- $this->logger = $logger;
- $this->ignoreFailures = $ignoreFailures;
- }
- public function getName() {
- return 'Repair MySQL collation';
- }
-
- public function run(IOutput $output) {
- if ($this->connection->getDatabaseProvider() !== IDBConnection::PLATFORM_MYSQL) {
- $output->info('Not a mysql database -> nothing to do');
- return;
- }
- $characterSet = $this->config->getSystemValueBool('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8';
- $tables = $this->getAllNonUTF8BinTables($this->connection);
- foreach ($tables as $table) {
- $output->info("Change row format for $table ...");
- $query = $this->connection->prepare('ALTER TABLE `' . $table . '` ROW_FORMAT = DYNAMIC;');
- try {
- $query->execute();
- } catch (DriverException $e) {
-
- $this->logger->error($e->getMessage(), ['exception' => $e]);
- if (!$this->ignoreFailures) {
- throw $e;
- }
- }
- $output->info("Change collation for $table ...");
- $query = $this->connection->prepare('ALTER TABLE `' . $table . '` CONVERT TO CHARACTER SET ' . $characterSet . ' COLLATE ' . $characterSet . '_bin;');
- try {
- $query->execute();
- } catch (DriverException $e) {
-
- $this->logger->error($e->getMessage(), ['exception' => $e]);
- if (!$this->ignoreFailures) {
- throw $e;
- }
- }
- }
- if (empty($tables)) {
- $output->info('All tables already have the correct collation -> nothing to do');
- }
- }
-
- protected function getAllNonUTF8BinTables(IDBConnection $connection) {
- $dbName = $this->config->getSystemValueString("dbname");
- $characterSet = $this->config->getSystemValueBool('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8';
-
- $statement = $connection->executeQuery(
- "SELECT DISTINCT(TABLE_NAME) AS `table`" .
- " FROM INFORMATION_SCHEMA . COLUMNS" .
- " WHERE TABLE_SCHEMA = ?" .
- " AND (COLLATION_NAME <> '" . $characterSet . "_bin' OR CHARACTER_SET_NAME <> '" . $characterSet . "')" .
- " AND TABLE_NAME LIKE '*PREFIX*%'",
- [$dbName]
- );
- $rows = $statement->fetchAll();
- $result = [];
- foreach ($rows as $row) {
- $result[$row['table']] = true;
- }
-
- $statement = $connection->executeQuery(
- "SELECT DISTINCT(TABLE_NAME) AS `table`" .
- " FROM INFORMATION_SCHEMA . TABLES" .
- " WHERE TABLE_SCHEMA = ?" .
- " AND TABLE_COLLATION <> '" . $characterSet . "_bin'" .
- " AND TABLE_NAME LIKE '*PREFIX*%'",
- [$dbName]
- );
- $rows = $statement->fetchAll();
- foreach ($rows as $row) {
- $result[$row['table']] = true;
- }
- return array_keys($result);
- }
- }
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