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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OCA\ServerInfo;
use OCP\DB\Exception;
use OCP\IConfig;
use OCP\IDBConnection;
class DatabaseStatistics {
protected IConfig $config;
protected IDBConnection $connection;
public function __construct(IConfig $config, IDBConnection $connection) {
$this->config = $config;
$this->connection = $connection;
}
/**
* @return array{type: string, version: string, size: string}
*/
public function getDatabaseStatistics(): array {
return [
'type' => $this->config->getSystemValueString('dbtype'),
'version' => $this->databaseVersion(),
'size' => $this->databaseSize(),
];
}
protected function databaseVersion(): string {
switch ($this->config->getSystemValue('dbtype')) {
case 'sqlite':
case 'sqlite3':
$sql = 'SELECT sqlite_version() AS version';
break;
case 'oci':
$sql = 'SELECT VERSION FROM PRODUCT_COMPONENT_VERSION';
break;
case 'mysql':
case 'pgsql':
default:
$sql = 'SELECT VERSION() AS version';
break;
}
try {
$result = $this->connection->executeQuery($sql);
$version = $result->fetchColumn();
$result->closeCursor();
if ($version) {
return $this->cleanVersion($version);
}
} catch (Exception $e) {
}
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)
*/
protected function databaseSize(): string {
$database_size = false;
// This code is heavily influenced by a similar routine in phpMyAdmin 2.2.0
switch ($this->config->getSystemValue('dbtype')) {
case 'mysql':
$mysqlEngine = ['MyISAM', 'InnoDB', 'Aria'];
$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['Engine']) && in_array($row['Engine'], $mysqlEngine)) {
$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 = $this->connection->getInner()->getParams();
if (file_exists($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) {
[$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 = $result->fetchColumn()) ? (int)$row : false;
$result->closeCursor();
break;
}
return ($database_size !== false) ? (string) $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(string $version): string {
$matches = [];
preg_match('/^(\d+)(\.\d+)(\.\d+)/', $version, $matches);
if (isset($matches[0])) {
return $matches[0];
}
return $version;
}
}
Zerion Mini Shell 1.0