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<?php |
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/** |
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* @copyright Copyright (c) 2016, ownCloud, Inc. |
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* |
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* @author Bart Visscher <[email protected]> |
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* @author Joas Schilling <[email protected]> |
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* @author Michael Göhler <[email protected]> |
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* @author Robin McCorkell <[email protected]> |
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* @author Roeland Jago Douma <[email protected]> |
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* @author Stefan Weil <[email protected]> |
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* @author Thomas Müller <[email protected]> |
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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\Setup; |
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use OC\DB\MySqlTools; |
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use OCP\IDBConnection; |
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class MySQL extends AbstractDatabase { |
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public $dbprettyname = 'MySQL/MariaDB'; |
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public function setupDatabase($username) { |
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//check if the database user has admin right |
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$connection = $this->connect(['dbname' => null]); |
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// detect mb4 |
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$tools = new MySqlTools(); |
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if ($tools->supports4ByteCharset($connection)) { |
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$this->config->setValue('mysql.utf8mb4', true); |
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$connection = $this->connect(); |
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} |
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$this->createSpecificUser($username, $connection); |
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//create the database |
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$this->createDatabase($connection); |
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//fill the database if needed |
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$query='select count(*) from information_schema.tables where table_schema=? AND table_name = ?'; |
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$result = $connection->executeQuery($query, [$this->dbName, $this->tablePrefix.'users']); |
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$row = $result->fetch(); |
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if (!$row or $row['count(*)'] === '0') { |
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\OC_DB::createDbFromStructure($this->dbDefinitionFile); |
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} |
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} |
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/** |
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* @param \OC\DB\Connection $connection |
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*/ |
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private function createDatabase($connection) { |
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try{ |
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$name = $this->dbName; |
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$user = $this->dbUser; |
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//we can't use OC_DB functions here because we need to connect as the administrative user. |
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$characterSet = $this->config->getValue('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8'; |
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$query = "CREATE DATABASE IF NOT EXISTS `$name` CHARACTER SET $characterSet COLLATE ${characterSet}_bin;"; |
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$connection->executeUpdate($query); |
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} catch (\Exception $ex) { |
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$this->logger->error('Database creation failed: {error}', [ |
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'app' => 'mysql.setup', |
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'error' => $ex->getMessage() |
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]); |
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return; |
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} |
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try { |
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//this query will fail if there aren't the right permissions, ignore the error |
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$query="GRANT ALL PRIVILEGES ON `$name` . * TO '$user'"; |
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$connection->executeUpdate($query); |
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} catch (\Exception $ex) { |
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$this->logger->debug('Could not automatically grant privileges, this can be ignored if database user already had privileges: {error}', [ |
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'app' => 'mysql.setup', |
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'error' => $ex->getMessage() |
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]); |
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} |
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} |
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/** |
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* @param IDBConnection $connection |
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* @throws \OC\DatabaseSetupException |
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*/ |
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private function createDBUser($connection) { |
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try{ |
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$name = $this->dbUser; |
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$password = $this->dbPassword; |
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// we need to create 2 accounts, one for global use and one for local user. if we don't specify the local one, |
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// the anonymous user would take precedence when there is one. |
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$query = "CREATE USER '$name'@'localhost' IDENTIFIED BY '$password'"; |
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$connection->executeUpdate($query); |
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$query = "CREATE USER '$name'@'%' IDENTIFIED BY '$password'"; |
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$connection->executeUpdate($query); |
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} |
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catch (\Exception $ex){ |
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$this->logger->error('Database User creation failed: {error}', [ |
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'app' => 'mysql.setup', |
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'error' => $ex->getMessage() |
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]); |
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} |
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} |
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/** |
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* @param $username |
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* @param IDBConnection $connection |
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* @return array |
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*/ |
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private function createSpecificUser($username, $connection) { |
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try { |
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//user already specified in config |
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$oldUser = $this->config->getValue('dbuser', false); |
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//we don't have a dbuser specified in config |
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if ($this->dbUser !== $oldUser) { |
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//add prefix to the admin username to prevent collisions |
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$adminUser = substr('oc_' . $username, 0, 16); |
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$i = 1; |
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while (true) { |
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//this should be enough to check for admin rights in mysql |
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$query = 'SELECT user FROM mysql.user WHERE user=?'; |
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$result = $connection->executeQuery($query, [$adminUser]); |
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//current dbuser has admin rights |
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if ($result) { |
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$data = $result->fetchAll(); |
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//new dbuser does not exist |
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if (count($data) === 0) { |
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//use the admin login data for the new database user |
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$this->dbUser = $adminUser; |
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//create a random password so we don't need to store the admin password in the config file |
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$this->dbPassword = $this->random->generate(30); |
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$this->createDBUser($connection); |
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break; |
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} else { |
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//repeat with different username |
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$length = strlen((string)$i); |
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$adminUser = substr('oc_' . $username, 0, 16 - $length) . $i; |
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$i++; |
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} |
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} else { |
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break; |
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} |
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}; |
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} |
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} catch (\Exception $ex) { |
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$this->logger->info('Can not create a new MySQL user, will continue with the provided user: {error}', [ |
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'app' => 'mysql.setup', |
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'error' => $ex->getMessage() |
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]); |
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} |
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$this->config->setValues([ |
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'dbuser' => $this->dbUser, |
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'dbpassword' => $this->dbPassword, |
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]); |
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} |
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} |
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nextcloud /
server
