153 lines
4.4 KiB
PHP
153 lines
4.4 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Joas Schilling <coding@schilljs.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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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 Doctrine\DBAL\Platforms\MySqlPlatform;
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use OCP\IConfig;
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use OCP\IDBConnection;
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use OCP\ILogger;
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use OCP\Migration\IOutput;
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use OCP\Migration\IRepairStep;
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class Collation implements IRepairStep {
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/** @var IConfig */
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protected $config;
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/** @var ILogger */
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protected $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 IConfig $config
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* @param ILogger $logger
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* @param IDBConnection $connection
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* @param bool $ignoreFailures
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*/
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public function __construct(IConfig $config, ILogger $logger, IDBConnection $connection, $ignoreFailures) {
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$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->getDatabasePlatform() instanceof MySqlPlatform) {
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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 = $this->config->getSystemValue('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8';
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$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->logException($e);
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if (!$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 $table ...");
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if ($characterSet === 'utf8mb4') {
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// need to set row compression first
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$query = $this->connection->prepare('ALTER TABLE `' . $table . '` ROW_FORMAT=COMPRESSED;');
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$query->execute();
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}
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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->logException($e);
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if (!$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 = $this->config->getSystemValue("dbname");
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$characterSet = $this->config->getSystemValue('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8';
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// fetch tables by columns
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$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 <> '" . $characterSet . "')" .
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" AND TABLE_NAME LIKE \"*PREFIX*%\"",
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array($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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