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130 lines
3.4 KiB
PHP
130 lines
3.4 KiB
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
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* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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namespace OC\Repair;
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use Doctrine\DBAL\Exception\DriverException;
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use OCP\IConfig;
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use OCP\IDBConnection;
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use OCP\Migration\IOutput;
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use OCP\Migration\IRepairStep;
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use Psr\Log\LoggerInterface;
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class Collation implements IRepairStep {
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/** @var IConfig */
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protected $config;
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protected LoggerInterface $logger;
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/** @var IDBConnection */
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protected $connection;
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/** @var bool */
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protected $ignoreFailures;
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/**
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* @param bool $ignoreFailures
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*/
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public function __construct(
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IConfig $config,
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LoggerInterface $logger,
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IDBConnection $connection,
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$ignoreFailures,
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) {
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$this->connection = $connection;
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$this->config = $config;
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$this->logger = $logger;
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$this->ignoreFailures = $ignoreFailures;
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}
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public function getName() {
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return 'Repair MySQL collation';
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}
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/**
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* Fix mime types
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*/
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public function run(IOutput $output) {
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if ($this->connection->getDatabaseProvider() !== IDBConnection::PLATFORM_MYSQL) {
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$output->info('Not a mysql database -> nothing to do');
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return;
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}
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$characterSet = $this->config->getSystemValueBool('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8';
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$tables = $this->getAllNonUTF8BinTables($this->connection);
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foreach ($tables as $table) {
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$output->info("Change row format for $table ...");
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$query = $this->connection->prepare('ALTER TABLE `' . $table . '` ROW_FORMAT = DYNAMIC;');
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try {
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$query->execute();
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} catch (DriverException $e) {
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// Just log this
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$this->logger->error($e->getMessage(), ['exception' => $e]);
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if (!$this->ignoreFailures) {
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throw $e;
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}
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}
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$output->info("Change collation for $table ...");
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$query = $this->connection->prepare('ALTER TABLE `' . $table . '` CONVERT TO CHARACTER SET ' . $characterSet . ' COLLATE ' . $characterSet . '_bin;');
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try {
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$query->execute();
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} catch (DriverException $e) {
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// Just log this
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$this->logger->error($e->getMessage(), ['exception' => $e]);
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if (!$this->ignoreFailures) {
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throw $e;
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}
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}
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}
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if (empty($tables)) {
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$output->info('All tables already have the correct collation -> nothing to do');
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}
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}
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/**
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* @param IDBConnection $connection
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* @return string[]
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*/
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protected function getAllNonUTF8BinTables(IDBConnection $connection) {
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$dbName = $this->config->getSystemValueString('dbname');
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$characterSet = $this->config->getSystemValueBool('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8';
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// fetch tables by columns
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$statement = $connection->executeQuery(
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'SELECT DISTINCT(TABLE_NAME) AS `table`' .
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' FROM INFORMATION_SCHEMA . COLUMNS' .
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' WHERE TABLE_SCHEMA = ?' .
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" AND (COLLATION_NAME <> '" . $characterSet . "_bin' OR CHARACTER_SET_NAME <> '" . $characterSet . "')" .
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" AND TABLE_NAME LIKE '*PREFIX*%'",
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[$dbName]
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);
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$rows = $statement->fetchAll();
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$result = [];
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foreach ($rows as $row) {
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$result[$row['table']] = true;
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}
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// fetch tables by collation
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$statement = $connection->executeQuery(
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'SELECT DISTINCT(TABLE_NAME) AS `table`' .
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' FROM INFORMATION_SCHEMA . TABLES' .
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' WHERE TABLE_SCHEMA = ?' .
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" AND TABLE_COLLATION <> '" . $characterSet . "_bin'" .
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" AND TABLE_NAME LIKE '*PREFIX*%'",
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[$dbName]
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);
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$rows = $statement->fetchAll();
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foreach ($rows as $row) {
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$result[$row['table']] = true;
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}
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return array_keys($result);
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}
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}
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