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<?php |
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/** |
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* @author Morris Jobke <[email protected]> |
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* @author Robin Appelman <[email protected]> |
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* @author Thomas Müller <[email protected]> |
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* |
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* @copyright Copyright (c) 2016, ownCloud GmbH. |
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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\Platforms\MySqlPlatform; |
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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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class Collation implements IRepairStep { |
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/** @var \OCP\IConfig */ |
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protected $config; |
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/** @var IDBConnection */ |
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protected $connection; |
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/** |
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* @param \OCP\IConfig $config |
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* @param IDBConnection $connection |
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*/ |
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public function __construct($config, IDBConnection $connection) { |
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$this->connection = $connection; |
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$this->config = $config; |
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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 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 ' . $characterSet . '_bin;'); |
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$query->execute(); |
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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 <> '" . $characterSet . "')" . |
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" AND TABLE_NAME LIKE \"*PREFIX*%\"", |
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[$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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owncloud /
core
