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<?php
/**
* @author Joas Schilling <coding@schilljs.com>
*
* @copyright Copyright (c) 2016, ownCloud, Inc.
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\Survey_Client\Categories;
use OCP\IConfig;
use OCP\IDBConnection;
use OCP\IL10N;
/**
* Class Database
*
* @package OCA\Survey_Client\Categories
*/
class Database implements ICategory {
/** @var \OCP\IConfig */
protected $config;
/** @var \OCP\IDBConnection */
protected $connection;
/** @var \OCP\IL10N */
protected $l;
/**
* @param IConfig $config
* @param IDBConnection $connection
* @param IL10N $l
*/
public function __construct(IConfig $config, IDBConnection $connection, IL10N $l) {
$this->config = $config;
$this->connection = $connection;
$this->l = $l;
}
/**
* @return string
*/
public function getCategory() {
return 'database';
}
/**
* @return string
*/
public function getDisplayName() {
return (string) $this->l->t('Database environment <em>(type, version, database size)</em>');
}
/**
* @return array (string => string|int)
*/
public function getData() {
return [
'type' => $this->config->getSystemValue('dbtype'),
'version' => $this->databaseVersion(),
'size' => $this->databaseSize(),
];
}
protected function databaseVersion() {
switch ($this->config->getSystemValue('dbtype')) {
case 'sqlite':
case 'sqlite3':
$sql = 'SELECT sqlite_version() AS version';
break;
case 'oci':
$sql = 'SELECT version FROM v$instance';
break;
case 'mysql':
case 'pgsql':
default:
$sql = 'SELECT VERSION() AS version';
break;
}
$result = $this->connection->executeQuery($sql);
$row = $result->fetch();
$result->closeCursor();
if ($row) {
return $this->cleanVersion($row['version']);
}
return 'N/A';
}
/**
* Copy of phpBB's get_database_size()
* @link https://github.com/phpbb/phpbb/blob/release-3.1.6/phpBB/includes/functions_admin.php#L2908-L3043
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* @return int|string
*/
protected function databaseSize() {
$database_size = false;
// This code is heavily influenced by a similar routine in phpMyAdmin 2.2.0
switch ($this->config->getSystemValue('dbtype')) {
case 'mysql':
$db_name = $this->config->getSystemValue('dbname');
$sql = 'SHOW TABLE STATUS FROM `' . $db_name . '`';
$result = $this->connection->executeQuery($sql);
$database_size = 0;
while ($row = $result->fetch()) {
if ((isset($row['Type']) && $row['Type'] !== 'MRG_MyISAM') || (isset($row['Engine']) && ($row['Engine'] === 'MyISAM' || $row['Engine'] === 'InnoDB'))) {
$database_size += $row['Data_length'] + $row['Index_length'];
}
}
$result->closeCursor();
break;
case 'sqlite':
case 'sqlite3':
if (file_exists($this->config->getSystemValue('dbhost'))) {
$database_size = filesize($this->config->getSystemValue('dbhost'));
} else {
$params = $this->connection->getParams();
if (file_exists($params['path'])) {
$database_size = filesize($params['path']);
}
}
break;
case 'pgsql':
$sql = "SELECT proname
FROM pg_proc
WHERE proname = 'pg_database_size'";
$result = $this->connection->executeQuery($sql);
$row = $result->fetch();
$result->closeCursor();
if ($row['proname'] === 'pg_database_size') {
$database = $this->config->getSystemValue('dbname');
if (strpos($database, '.') !== false)
{
list($database, ) = explode('.', $database);
}
$sql = "SELECT oid
FROM pg_database
WHERE datname = '$database'";
$result = $this->connection->executeQuery($sql);
$row = $result->fetch();
$result->closeCursor();
$oid = $row['oid'];
$sql = 'SELECT pg_database_size(' . $oid . ') as size';
$result = $this->connection->executeQuery($sql);
$row = $result->fetch();
$result->closeCursor();
$database_size = $row['size'];
}
break;
case 'oci':
$sql = 'SELECT SUM(bytes) as dbsize
FROM user_segments';
$result = $this->connection->executeQuery($sql);
$database_size = ($row = $result->fetch()) ? $row['dbsize'] : false;
$result->closeCursor();
break;
}
return ($database_size !== false) ? $database_size : 'N/A';
}
/**
* Try to strip away additional information
*
* @param string $version E.g. `5.6.27-0ubuntu0.14.04.1`
* @return string `5.6.27`
*/
protected function cleanVersion($version) {
$matches = [];
preg_match('/^(\d+)(\.\d+)(\.\d+)/', $version, $matches);
if (isset($matches[0])) {
return $matches[0];
}
return $version;
}
}