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197 lines
6.5 KiB
197 lines
6.5 KiB
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Hemanth Kumar Veeranki <hems.india1997@gmail.com>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Michael Göhler <somebody.here@gmx.de>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Oliver Salzburg <oliver.salzburg@gmail.com>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Vincent Petry <pvince81@owncloud.com>
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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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use OCP\ILogger;
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use Doctrine\DBAL\Platforms\MySQL80Platform;
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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 = $this->connect(['dbname' => null]);
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}
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$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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$connection->executeQuery($query, [$this->dbName, $this->tablePrefix.'users']);
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$connection->close();
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$connection = $this->connect();
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try {
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$connection->connect();
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} catch (\Exception $e) {
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$this->logger->logException($e);
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throw new \OC\DatabaseSetupException($this->trans->t('MySQL username and/or password not valid'),
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$this->trans->t('You need to enter details of an existing account.'));
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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->logException($ex, [
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'message' => 'Database creation failed.',
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'level' => ILogger::ERROR,
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'app' => 'mysql.setup',
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]);
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return;
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}
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try {
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//this query will fail if there aren't the right permissions, ignore the error
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$query="GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, REFERENCES, INDEX, ALTER, CREATE TEMPORARY TABLES, LOCK TABLES, EXECUTE, CREATE VIEW, SHOW VIEW, CREATE ROUTINE, ALTER ROUTINE, EVENT, TRIGGER ON `$name` . * TO '$user'";
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$connection->executeUpdate($query);
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} catch (\Exception $ex) {
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$this->logger->logException($ex, [
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'message' => 'Could not automatically grant privileges, this can be ignored if database user already had privileges.',
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'level' => ILogger::DEBUG,
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'app' => 'mysql.setup',
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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 = $this->dbPassword;
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// we need to create 2 accounts, one for global use and one for local user. if we don't specify the local one,
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// the anonymous user would take precedence when there is one.
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if ($connection->getDatabasePlatform() instanceof Mysql80Platform) {
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$query = "CREATE USER '$name'@'localhost' IDENTIFIED WITH mysql_native_password BY '$password'";
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$connection->executeUpdate($query);
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$query = "CREATE USER '$name'@'%' IDENTIFIED WITH mysql_native_password BY '$password'";
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$connection->executeUpdate($query);
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} else {
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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->logException($ex, [
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'message' => 'Database user creation failed.',
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'level' => ILogger::ERROR,
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'app' => 'mysql.setup',
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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->logException($ex, [
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'message' => 'Can not create a new MySQL user, will continue with the provided user.',
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'level' => ILogger::INFO,
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'app' => 'mysql.setup',
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]);
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}
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$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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