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<?php /** @noinspection PhpRedundantOptionalArgumentInspection */ |
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/** @noinspection PhpDeprecationInspection */ |
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/** @noinspection PhpUnnecessaryCurlyVarSyntaxInspection */ |
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namespace DBAL; |
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use classConfig; |
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use Core\GlobalContainer; |
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use debug; |
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use mysqli; |
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use mysqli_result; |
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use SN; |
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use Unit\DBStaticUnit; |
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/** |
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* User: Gorlum |
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* Date: 01.09.2015 |
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* Time: 15:58 |
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*/ |
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class db_mysql { |
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const TRANSACTION_LEVEL_SERIALIZABLE = 'SERIALIZABLE'; |
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const TRANSACTION_LEVEL_REPEATABLE_READ = 'REPEATABLE READ'; |
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const TRANSACTION_LEVEL_READ_COMMITTED = 'READ COMMITTED'; |
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const TRANSACTION_LEVEL_READ_UNCOMMITTED = 'READ UNCOMMITTED'; |
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const TRANSACTION_LEVELS_ALLOWED = [ |
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self::TRANSACTION_LEVEL_SERIALIZABLE, |
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self::TRANSACTION_LEVEL_REPEATABLE_READ, |
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self::TRANSACTION_LEVEL_READ_COMMITTED, |
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self::TRANSACTION_LEVEL_READ_UNCOMMITTED, |
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]; |
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const DB_TRANSACTION_WHATEVER = false; |
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const DB_TRANSACTION_SHOULD_BE = true; |
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const DB_TRANSACTION_SHOULD_NOT_BE = null; |
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public static $transaction_id = 0; |
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public static $db_in_transaction = false; |
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public static $transactionDepth = 0; |
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const TABLE_USERS = 'users'; |
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const TABLE_ID_FIELD = [ |
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'fleets' => 'fleet_id', |
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]; |
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// Order in which tables should be locked |
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const TABLE_LOCK_ORDER = [ |
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'users', |
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'planets', |
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'que', |
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'unit', |
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'fleets', |
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]; |
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/** |
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* DB schemes |
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* |
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* @var Schema|null $schema |
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*/ |
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protected static $schema = null; |
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/** |
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* Статус соединения с MySQL |
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* |
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* @var bool |
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*/ |
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public $connected = false; |
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/** |
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* Префикс названий таблиц в БД |
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* |
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* @var string |
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*/ |
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public $db_prefix = ''; |
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public $dbName = ''; |
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/** |
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* Настройки БД |
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* |
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* @var array |
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*/ |
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protected $dbsettings = []; |
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// /** |
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// * Драйвер для прямого обращения к MySQL |
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// * |
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// * @var db_mysql_v5 $driver |
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// */ |
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// public $driver = null; |
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/** |
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* Общее время запросов |
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* |
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* @var float $time_mysql_total |
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*/ |
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public $time_mysql_total = 0.0; |
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/** |
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* @var bool $inTransaction |
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*/ |
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protected $inTransaction = false; |
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/** |
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* Соединение с MySQL |
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* |
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* @var mysqli $link |
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*/ |
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public $link; |
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/** |
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* DBAL\db_mysql constructor. |
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* |
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* @param GlobalContainer $gc |
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*/ |
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public function __construct($gc) { |
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// $this->transaction = new \DBAL\DbTransaction($gc, $this); |
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// $this->snCache = new $gc->snCacheClass($gc, $this); |
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// $this->operator = new DbRowDirectOperator($this); |
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} |
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/** |
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* @return Schema |
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*/ |
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public function schema() { |
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if (!isset(self::$schema)) { |
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self::$schema = new Schema($this); |
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} |
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return self::$schema; |
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} |
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public function load_db_settings() { |
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$dbsettings = array(); |
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require(SN_CONFIG_PATH); |
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$this->setDbSettings($dbsettings); |
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} |
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public function sn_db_connect($external_db_settings = null) { |
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$this->db_disconnect(); |
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if (!empty($external_db_settings) && is_array($external_db_settings)) { |
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$this->setDbSettings($external_db_settings); |
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} |
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if (empty($this->dbsettings)) { |
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$this->load_db_settings(); |
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} |
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// TODO - фатальные (?) ошибки на каждом шагу |
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if (!empty($this->dbsettings)) { |
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// $driver_name = 'DBAL\\' . (empty($this->dbsettings['sn_driver']) ? 'db_mysql_v5' : $this->dbsettings['sn_driver']); |
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// $this->driver = new $driver_name(); |
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$this->db_prefix = $this->dbsettings['prefix']; |
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$this->connected = $this->connected || $this->mysql_connect_driver($this->dbsettings); |
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if ($this->connected && empty($this->schema()->getSnTables())) { |
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die('DB error - cannot find any table. Halting...'); |
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} |
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$this->doQueryFast('SET SESSION TRANSACTION ISOLATION LEVEL ' . self::TRANSACTION_LEVEL_SERIALIZABLE); |
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} else { |
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$this->connected = false; |
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} |
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return $this->connected; |
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} |
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public function mysql_connect_driver($settings) { |
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global $debug; |
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static $need_keys = array('server', 'user', 'pass', 'name', 'prefix'); |
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if ($this->connected) { |
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return true; |
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} |
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if (empty($settings) || !is_array($settings) || array_intersect($need_keys, array_keys($settings)) != $need_keys) { |
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$debug->error_fatal('There is miss-configuration in your config.php. Check it again'); |
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} |
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@$this->link = mysqli_connect($settings['server'], $settings['user'], $settings['pass'], $settings['name']); |
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if (!is_object($this->link) || $this->link->connect_error) { |
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$debug->error_fatal('DB Error - cannot connect to server error #' . $this->link->connect_errno, $this->link->connect_error); |
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} |
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$this->db_sql_query("/*!40101 SET NAMES 'utf8' */") |
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or $debug->error_fatal('DB error - cannot set names 1 error #' . $this->link->errno, $this->link->error); |
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$this->db_sql_query("SET NAMES 'utf8';") |
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or $debug->error_fatal('DB error - cannot set names 2 error #' . $this->link->errno, $this->link->error); |
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//mysql_select_db($settings['name']) or $debug->error_fatal('DB error - cannot find DB on server', $this->mysql_error()); |
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$this->db_sql_query('SET SESSION TRANSACTION ISOLATION LEVEL ' . self::TRANSACTION_LEVEL_SERIALIZABLE . ';') |
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or $debug->error_fatal('DB error - cannot set desired isolation level error #' . $this->link->errno, $this->link->error); |
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$this->connected = true; |
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return true; |
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} |
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public function db_disconnect() { |
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if ($this->connected) { |
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/** @noinspection PhpFieldImmediatelyRewrittenInspection */ |
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$this->connected = !$this->driver_disconnect(); |
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$this->connected = false; |
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} |
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return !$this->connected; |
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} |
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/** |
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* @param int $errno |
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* @param string $errStr |
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* @param string $errFile |
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* @param int $errLine |
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* @param array $errContext |
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* |
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* @noinspection PhpUnusedParameterInspection |
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*/ |
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public function handlerQueryWarning($errno, $errStr, $errFile, $errLine, $errContext) { |
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static $alreadyHandled; |
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// Error was suppressed with the @-operator |
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if (0 === error_reporting()) { |
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return false; |
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} |
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if (!$alreadyHandled) { |
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print(SN_TIME_SQL . '<br />Server is busy. Please try again in several minutes...<br />Сервер занят. Попробуйте снова через несколько минут...<br />Server zanyat. Poprobujte snova cherez neskolko minut...'); |
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$alreadyHandled = true; |
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} |
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return true; |
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} |
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public function prefixReplace($sql) { |
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if (strpos($sql, '{{') !== false) { |
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foreach ($this->schema()->getSnTables() as $tableName) { |
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$sql = str_replace("{{{$tableName}}}", $this->db_prefix . $tableName, $sql); |
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} |
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} |
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return $sql; |
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} |
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/** @noinspection SpellCheckingInspection */ |
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public function doquery($query, $fetch = false, $skip_query_check = false) { |
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/** |
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* @var debug $debug |
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* @var classConfig $config |
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*/ |
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global $numqueries, $debug, $config; |
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if (!$this->connected) { |
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$this->sn_db_connect(); |
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} |
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$query = trim($query); |
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$this->security_watch_user_queries($query); |
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$skip_query_check or $this->security_query_check_bad_words($query); |
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$sql = $this->prefixReplace($query); |
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if ($config->debug) { |
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$numqueries++; |
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$arr = debug_backtrace(); |
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$array = explode('/', $arr[0]['file']); |
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$file = end($array); |
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$line = $arr[0]['line']; |
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$debug->add("<tr><th>Query $numqueries: </th><th>$query</th><th>$file($line)</th><th> </th><th>$fetch</th></tr>"); |
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} |
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if (defined('DEBUG_SQL_COMMENT')) { |
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$sql = $debug->comment_query(debug_backtrace(), $sql); |
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} |
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set_error_handler([$this, 'handlerQueryWarning']); |
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$sqlquery = $this->db_sql_query($sql); |
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if (!$sqlquery) { |
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$debug->error(SN::$db->db_error() . "\n$sql\n", 'SQL Error'); |
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} |
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restore_error_handler(); |
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return $fetch ? $this->db_fetch($sqlquery) : $sqlquery; |
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} |
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/** |
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* Get all records for a query as array of arrays or objects |
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* |
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* @param string $query SQL query to execute |
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* @param bool $skipQueryCheck Should query skip security check |
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* @param bool $asArray Should records be returned as array? If false - records would be returned as StdObject |
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* |
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* @return array |
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*/ |
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public function dbGetAll($query, $skipQueryCheck = false, $asArray = true) { |
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$queryResult = $this->doquery($query, false, $skipQueryCheck); |
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$result = []; |
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while ($row = $this->db_fetch($queryResult)) { |
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$result[] = $asArray ? $row : (object)$row; |
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} |
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return $result; |
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} |
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public function doQueryAndFetch($query) { |
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return $this->doquery($query, true); |
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} |
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public function doQueryFast($query, $fetch = false) { |
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$sql = $this->prefixReplace($query); |
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set_error_handler([$this, 'handlerQueryWarning']); |
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$sqlQuery = $this->db_sql_query($sql) or SN::$debug->error(SN::$db->db_error() . "<br />$sql<br />", 'SQL Error'); |
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restore_error_handler(); |
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return $fetch ? $this->db_fetch($sqlQuery) : $sqlQuery; |
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} |
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/** |
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* @param string $query |
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* @param bool $skip_query_check |
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* |
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* @return DbMysqliResultIterator |
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*/ |
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public function selectIterator($query, $skip_query_check = false) { |
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return new DbMysqliResultIterator($this->doquery($query, false, $skip_query_check)); |
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} |
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/** |
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* @param string $query |
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* @param bool $skip_query_check |
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* |
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* @return int|null |
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*/ |
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public function selectValue($query, $skip_query_check = false) { |
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$row = $this->doquery($query, true, $skip_query_check); |
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return !empty($row) ? intval(reset($row)) : null; |
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} |
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/** |
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* @param DbQuery $dbQuery |
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* |
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* @return array|null |
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*/ |
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public function dbqSelectAndFetch(DbQuery $dbQuery) { |
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return $this->doQueryAndFetch($dbQuery->select()); |
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} |
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public function security_watch_user_queries($query) { |
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// TODO Заменить это на новый логгер |
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global $config, $is_watching, $user, $debug; |
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if (!$is_watching && $config->game_watchlist_array && in_array($user['id'], $config->game_watchlist_array)) { |
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|
|
if (!preg_match('/^(select|commit|rollback|start transaction)/i', $query)) { |
360
|
|
|
$is_watching = true; |
361
|
|
|
$msg = "\$query = \"{$query}\"\n\r"; |
362
|
|
|
if (!empty($_POST)) { |
363
|
|
|
$msg .= "\n\r" . dump($_POST, '$_POST'); |
364
|
|
|
} |
365
|
|
|
if (!empty($_GET)) { |
366
|
|
|
$msg .= "\n\r" . dump($_GET, '$_GET'); |
367
|
|
|
} |
368
|
|
|
$debug->warning($msg, "Watching user {$user['id']}", 399, array('base_dump' => true)); |
369
|
|
|
$is_watching = false; |
370
|
|
|
} |
371
|
|
|
} |
372
|
|
|
} |
373
|
|
|
|
374
|
|
|
|
375
|
|
|
/** @noinspection SpellCheckingInspection */ |
376
|
|
|
public function security_query_check_bad_words($query) { |
377
|
|
|
global $user, $dm_change_legit, $mm_change_legit; |
378
|
|
|
|
379
|
|
|
switch (true) { |
380
|
|
|
case stripos($query, 'RUNCATE TABL') != false: |
|
|
|
|
381
|
|
|
case stripos($query, 'ROP TABL') != false: |
|
|
|
|
382
|
|
|
case stripos($query, 'ENAME TABL') != false: |
|
|
|
|
383
|
|
|
case stripos($query, 'REATE DATABAS') != false: |
|
|
|
|
384
|
|
|
case stripos($query, 'REATE TABL') != false: |
|
|
|
|
385
|
|
|
case stripos($query, 'ET PASSWOR') != false: |
|
|
|
|
386
|
|
|
case stripos($query, 'EOAD DAT') != false: |
|
|
|
|
387
|
|
|
case stripos($query, 'RPG_POINTS') != false && stripos(trim($query), 'UPDATE ') === 0 && !$dm_change_legit: |
|
|
|
|
388
|
|
|
case stripos($query, 'METAMATTER') != false && stripos(trim($query), 'UPDATE ') === 0 && !$mm_change_legit: |
|
|
|
|
389
|
|
|
case stripos($query, 'AUTHLEVEL') != false && $user['authlevel'] < 3 && stripos($query, 'SELECT') !== 0: |
|
|
|
|
390
|
|
|
$report = "Hacking attempt (" . date("d.m.Y H:i:s") . " - [" . time() . "]):\n"; |
391
|
|
|
$report .= ">Database Inforamation\n"; |
392
|
|
|
$report .= "\tID - " . $user['id'] . "\n"; |
393
|
|
|
$report .= "\tUser - " . $user['username'] . "\n"; |
394
|
|
|
$report .= "\tAuth level - " . $user['authlevel'] . "\n"; |
395
|
|
|
$report .= "\tAdmin Notes - " . $user['adminNotes'] . "\n"; |
396
|
|
|
$report .= "\tCurrent Planet - " . $user['current_planet'] . "\n"; |
397
|
|
|
$report .= "\tUser IP - " . $user['user_lastip'] . "\n"; |
398
|
|
|
$report .= "\tUser IP at Reg - " . $user['ip_at_reg'] . "\n"; |
399
|
|
|
$report .= "\tUser Agent- " . $_SERVER['HTTP_USER_AGENT'] . "\n"; |
400
|
|
|
$report .= "\tCurrent Page - " . $user['current_page'] . "\n"; |
401
|
|
|
$report .= "\tRegister Time - " . $user['register_time'] . "\n"; |
402
|
|
|
$report .= "\n"; |
403
|
|
|
|
404
|
|
|
$report .= ">Query Information\n"; |
405
|
|
|
$report .= "\tQuery - " . $query . "\n"; |
406
|
|
|
$report .= "\n"; |
407
|
|
|
|
408
|
|
|
$report .= ">\$_SERVER Information\n"; |
409
|
|
|
$report .= "\tIP - " . $_SERVER['REMOTE_ADDR'] . "\n"; |
410
|
|
|
$report .= "\tHost Name - " . $_SERVER['HTTP_HOST'] . "\n"; |
411
|
|
|
$report .= "\tUser Agent - " . $_SERVER['HTTP_USER_AGENT'] . "\n"; |
412
|
|
|
$report .= "\tRequest Method - " . $_SERVER['REQUEST_METHOD'] . "\n"; |
413
|
|
|
$report .= "\tCame From - " . $_SERVER['HTTP_REFERER'] . "\n"; |
414
|
|
|
$report .= "\tPage is - " . $_SERVER['SCRIPT_NAME'] . "\n"; |
415
|
|
|
$report .= "\tUses Port - " . $_SERVER['REMOTE_PORT'] . "\n"; |
416
|
|
|
$report .= "\tServer Protocol - " . $_SERVER['SERVER_PROTOCOL'] . "\n"; |
417
|
|
|
|
418
|
|
|
$report .= "\n--------------------------------------------------------------------------------------------------\n"; |
419
|
|
|
|
420
|
|
|
$fp = fopen(SN_ROOT_PHYSICAL . 'badqrys.txt', 'a'); |
421
|
|
|
fwrite($fp, $report); |
422
|
|
|
fclose($fp); |
423
|
|
|
|
424
|
|
|
$message = 'Привет, я не знаю то, что Вы пробовали сделать, но команда, которую Вы только послали базе данных, не выглядела очень дружественной и она была заблокированна.<br /><br />Ваш IP, и другие данные переданны администрации сервера. Удачи!.'; |
425
|
|
|
die($message); |
|
|
|
|
426
|
|
|
/** @noinspection PhpUnreachableStatementInspection */ |
427
|
|
|
break; |
428
|
|
|
} |
429
|
|
|
} |
430
|
|
|
|
431
|
|
|
public function mysql_get_table_list() { |
432
|
|
|
return $this->db_sql_query('SHOW TABLES;'); |
433
|
|
|
} |
434
|
|
|
|
435
|
|
|
public function mysql_get_innodb_status() { |
436
|
|
|
return $this->db_sql_query('SHOW ENGINE INNODB STATUS;'); |
437
|
|
|
} |
438
|
|
|
|
439
|
|
|
/** |
440
|
|
|
* @param string $tableName_unsafe |
441
|
|
|
* |
442
|
|
|
* @return array[] |
443
|
|
|
*/ |
444
|
|
|
public function mysql_get_fields($tableName_unsafe) { |
445
|
|
|
$result = []; |
446
|
|
|
|
447
|
|
|
$prefixedTableName_safe = $this->db_escape($this->db_prefix . $tableName_unsafe); |
448
|
|
|
$q1 = $this->db_sql_query("SHOW FULL COLUMNS FROM `{$prefixedTableName_safe}`;"); |
449
|
|
|
while ($r1 = db_fetch($q1)) { |
|
|
|
|
450
|
|
|
$dbf = new DbFieldDescription(); |
451
|
|
|
$dbf->fromMySqlDescription($r1); |
452
|
|
|
|
453
|
|
|
$result[$r1['Field']] = $dbf; |
454
|
|
|
} |
455
|
|
|
|
456
|
|
|
return $result; |
457
|
|
|
} |
458
|
|
|
|
459
|
|
|
/** |
460
|
|
|
* @param string $tableName_unsafe |
461
|
|
|
* |
462
|
|
|
* @return DbIndexDescription[] |
463
|
|
|
*/ |
464
|
|
|
public function mysql_get_indexes($tableName_unsafe) { |
465
|
|
|
/** |
466
|
|
|
* @var DbIndexDescription[] $result |
467
|
|
|
*/ |
468
|
|
|
$result = []; |
469
|
|
|
|
470
|
|
|
$prefixedTableName_safe = $this->db_escape($this->db_prefix . $tableName_unsafe); |
471
|
|
|
$q1 = $this->db_sql_query("SHOW INDEX FROM {$prefixedTableName_safe};"); |
472
|
|
|
while ($r1 = db_fetch($q1)) { |
|
|
|
|
473
|
|
|
$indexName = $r1['Key_name']; |
474
|
|
|
if (empty($result[$indexName])) { |
475
|
|
|
$result[$indexName] = new DbIndexDescription(); |
476
|
|
|
} |
477
|
|
|
$result[$indexName]->addField($r1); |
478
|
|
|
} |
479
|
|
|
|
480
|
|
|
return $result; |
481
|
|
|
} |
482
|
|
|
|
483
|
|
|
/** |
484
|
|
|
* @param string $tableName_unsafe |
485
|
|
|
* |
486
|
|
|
* @return array[] |
487
|
|
|
*/ |
488
|
|
|
public function mysql_get_constraints($tableName_unsafe) { |
489
|
|
|
$result = []; |
490
|
|
|
|
491
|
|
|
$prefixedTableName_safe = $this->db_escape($this->db_prefix . $tableName_unsafe); |
492
|
|
|
|
493
|
|
|
$q1 = $this->db_sql_query("SELECT * FROM `information_schema`.`KEY_COLUMN_USAGE` WHERE `TABLE_SCHEMA` = '" . SN::$db->db_escape(SN::$db_name) . "' AND `TABLE_NAME` = '{$prefixedTableName_safe}' AND `REFERENCED_TABLE_NAME` IS NOT NULL;"); |
494
|
|
|
while ($r1 = db_fetch($q1)) { |
|
|
|
|
495
|
|
|
$indexName = $r1['CONSTRAINT_NAME']; |
496
|
|
|
|
497
|
|
|
$table_referenced = str_replace($this->db_prefix, '', $r1['REFERENCED_TABLE_NAME']); |
498
|
|
|
|
499
|
|
|
$result[$indexName]['name'] = $indexName; |
500
|
|
|
$result[$indexName]['signature'][] = "{$r1['COLUMN_NAME']}=>{$table_referenced}.{$r1['REFERENCED_COLUMN_NAME']}"; |
501
|
|
|
$r1['REFERENCED_TABLE_NAME'] = $table_referenced; |
502
|
|
|
$r1['TABLE_NAME'] = $tableName_unsafe; |
503
|
|
|
$result[$indexName]['fields'][$r1['COLUMN_NAME']] = $r1; |
504
|
|
|
} |
505
|
|
|
|
506
|
|
|
foreach ($result as &$constraint) { |
507
|
|
|
$constraint['signature'] = implode(',', $constraint['signature']); |
508
|
|
|
} |
509
|
|
|
|
510
|
|
|
return $result; |
511
|
|
|
} |
512
|
|
|
|
513
|
|
|
|
514
|
|
|
/** |
515
|
|
|
* @param $query_string |
516
|
|
|
* |
517
|
|
|
* @return bool|mysqli_result |
518
|
|
|
*/ |
519
|
|
|
public function db_sql_query($query_string) { |
520
|
|
|
$mt = microtime(true); |
521
|
|
|
|
522
|
|
|
$result = $this->link->query($query_string); |
523
|
|
|
|
524
|
|
|
$this->time_mysql_total += microtime(true) - $mt; |
525
|
|
|
|
526
|
|
|
return $result; |
527
|
|
|
// return $this->driver->mysql_query($query_string); |
528
|
|
|
} |
529
|
|
|
|
530
|
|
|
/** |
531
|
|
|
* @param mysqli_result $query_result |
532
|
|
|
* |
533
|
|
|
* @return array|null |
534
|
|
|
*/ |
535
|
|
|
public function db_fetch($query_result) { |
536
|
|
|
$mt = microtime(true); |
537
|
|
|
|
538
|
|
|
$result = mysqli_fetch_assoc($query_result); |
539
|
|
|
|
540
|
|
|
$this->time_mysql_total += microtime(true) - $mt; |
541
|
|
|
|
542
|
|
|
return $result; |
543
|
|
|
} |
544
|
|
|
|
545
|
|
|
// public function db_fetch_row(&$query) { |
546
|
|
|
// return mysqli_fetch_row($query); |
547
|
|
|
// } |
548
|
|
|
|
549
|
|
|
public function db_escape($unescaped_string) { |
550
|
|
|
return mysqli_real_escape_string($this->link, $unescaped_string); |
551
|
|
|
} |
552
|
|
|
|
553
|
|
|
public function driver_disconnect() { |
554
|
|
|
if (is_object($this->link)) { |
555
|
|
|
$this->link->close(); |
556
|
|
|
$this->connected = false; |
557
|
|
|
unset($this->link); |
558
|
|
|
} |
559
|
|
|
|
560
|
|
|
return true; |
561
|
|
|
} |
562
|
|
|
|
563
|
|
|
public function db_error() { |
564
|
|
|
return mysqli_error($this->link); |
565
|
|
|
} |
566
|
|
|
|
567
|
|
|
/** |
568
|
|
|
* @return int|string |
569
|
|
|
*/ |
570
|
|
|
public function db_insert_id() { |
571
|
|
|
return mysqli_insert_id($this->link); |
572
|
|
|
} |
573
|
|
|
|
574
|
|
|
public function db_num_rows($result) { |
575
|
|
|
return mysqli_num_rows($result); |
576
|
|
|
} |
577
|
|
|
|
578
|
|
|
public function db_affected_rows() { |
579
|
|
|
return mysqli_affected_rows($this->link); |
580
|
|
|
} |
581
|
|
|
|
582
|
|
|
public function getClientInfo() { |
583
|
|
|
return mysqli_get_client_info($this->link); |
584
|
|
|
} |
585
|
|
|
|
586
|
|
|
public function getServerInfo() { |
587
|
|
|
return mysqli_get_server_info($this->link); |
588
|
|
|
} |
589
|
|
|
|
590
|
|
|
public function getHostInfo() { |
591
|
|
|
return mysqli_get_host_info($this->link); |
592
|
|
|
} |
593
|
|
|
|
594
|
|
|
public function getServerStat() { |
595
|
|
|
return mysqli_stat($this->link); |
596
|
|
|
} |
597
|
|
|
|
598
|
|
|
/** |
599
|
|
|
* @param array $dbSettings |
600
|
|
|
*/ |
601
|
|
|
public function setDbSettings($dbSettings) { |
602
|
|
|
$this->dbsettings = $dbSettings; |
603
|
|
|
$this->dbName = $this->dbsettings['name']; |
604
|
|
|
|
605
|
|
|
return $this; |
606
|
|
|
} |
607
|
|
|
|
608
|
|
|
public function getDbSettings() { |
609
|
|
|
return $this->dbsettings; |
610
|
|
|
} |
611
|
|
|
|
612
|
|
|
/** |
613
|
|
|
* @param $level |
614
|
|
|
* |
615
|
|
|
* @return void |
616
|
|
|
*/ |
617
|
|
|
public function transactionStart($level = '') { |
618
|
|
|
$this->inTransaction = true; |
619
|
|
|
|
620
|
|
|
if ($level && in_array($level, self::TRANSACTION_LEVELS_ALLOWED)) { |
621
|
|
|
$this->db_sql_query("SET TRANSACTION ISOLATION LEVEL {$level};"); |
622
|
|
|
} |
623
|
|
|
|
624
|
|
|
$this->doquery('START TRANSACTION; /* transaction start */', false); |
625
|
|
|
} |
626
|
|
|
|
627
|
|
|
/** |
628
|
|
|
* @return void |
629
|
|
|
*/ |
630
|
|
|
public function transactionCommit() { |
631
|
|
|
$this->doquery('COMMIT; /* transaction commit */'); |
632
|
|
|
$this->inTransaction = false; |
633
|
|
|
} |
634
|
|
|
|
635
|
|
|
/** |
636
|
|
|
* @return void |
637
|
|
|
*/ |
638
|
|
|
public function transactionRollback() { |
639
|
|
|
$this->doquery('ROLLBACK; /* transaction rollback */'); |
640
|
|
|
$this->inTransaction = false; |
641
|
|
|
} |
642
|
|
|
|
643
|
|
|
/** |
644
|
|
|
* Check if transaction started |
645
|
|
|
* |
646
|
|
|
* @return bool |
647
|
|
|
*/ |
648
|
|
|
public function transactionCheck() { |
649
|
|
|
return $this->inTransaction; |
650
|
|
|
} |
651
|
|
|
|
652
|
|
|
/** |
653
|
|
|
* Wrap callback in transaction |
654
|
|
|
* |
655
|
|
|
* @param callable $callback |
656
|
|
|
* @param string $level |
657
|
|
|
* |
658
|
|
|
* @return mixed |
659
|
|
|
*/ |
660
|
|
|
public function transactionWrap($callback, $level = '') { |
661
|
|
|
$this->transactionStart($level); |
662
|
|
|
$result = $callback(); |
663
|
|
|
$this->transactionCommit(); |
664
|
|
|
|
665
|
|
|
return $result; |
666
|
|
|
} |
667
|
|
|
|
668
|
|
|
public static function db_transaction_start($level = '') { |
669
|
|
|
self::db_transaction_check(db_mysql::DB_TRANSACTION_SHOULD_NOT_BE); |
670
|
|
|
|
671
|
|
|
SN::$gc->db->transactionStart($level); |
672
|
|
|
|
673
|
|
|
self::$transaction_id++; |
674
|
|
|
|
675
|
|
|
if (SN::$config->db_manual_lock_enabled) { |
676
|
|
|
SN::$config->db_loadItem('var_db_manually_locked'); |
677
|
|
|
SN::$config->db_saveItem('var_db_manually_locked', SN_TIME_SQL); |
678
|
|
|
} |
679
|
|
|
|
680
|
|
|
self::$db_in_transaction = true; |
681
|
|
|
self::$transactionDepth++; |
682
|
|
|
DBStaticUnit::cache_clear(); |
683
|
|
|
|
684
|
|
|
return self::$transaction_id; |
685
|
|
|
} |
686
|
|
|
|
687
|
|
|
public static function db_transaction_rollback() { |
688
|
|
|
// static::db_transaction_check(true); // TODO - вообще-то тут тоже надо проверять есть ли транзакция |
689
|
|
|
DBStaticUnit::cache_clear(); |
690
|
|
|
|
691
|
|
|
SN::$gc->db->transactionRollback(); |
692
|
|
|
|
693
|
|
|
self::$db_in_transaction = false; |
694
|
|
|
self::$transactionDepth--; |
695
|
|
|
|
696
|
|
|
return self::$transaction_id; |
697
|
|
|
} |
698
|
|
|
|
699
|
|
|
/** |
700
|
|
|
* Блокирует указанные таблицу/список таблиц |
701
|
|
|
* |
702
|
|
|
* @param string|array $tables Таблица/список таблиц для блокировки. Названия таблиц - без префиксов |
703
|
|
|
* <p>string - название таблицы для блокировки</p> |
704
|
|
|
* <p>array - массив, где ключ - имя таблицы, а значение - условия блокировки элементов</p> |
705
|
|
|
*/ |
706
|
|
|
public static function db_lock_tables($tables) { |
707
|
|
|
$tables = is_array($tables) ? $tables : array($tables => ''); |
708
|
|
|
foreach ($tables as $table_name => $condition) { |
709
|
|
|
SN::$db->doquery( |
710
|
|
|
"SELECT 1 FROM {{{$table_name}}}" . ($condition ? ' WHERE ' . $condition : '') |
711
|
|
|
); |
712
|
|
|
} |
713
|
|
|
} |
714
|
|
|
|
715
|
|
|
public static function db_transaction_commit() { |
716
|
|
|
self::db_transaction_check(db_mysql::DB_TRANSACTION_SHOULD_BE); |
717
|
|
|
|
718
|
|
|
DBStaticUnit::cache_clear(); |
719
|
|
|
SN::$gc->db->transactionCommit(); |
720
|
|
|
|
721
|
|
|
self::$db_in_transaction = false; |
722
|
|
|
self::$transactionDepth--; |
723
|
|
|
|
724
|
|
|
return self::$transaction_id++; |
725
|
|
|
} |
726
|
|
|
|
727
|
|
|
/** |
728
|
|
|
* Эта функция проверяет статус транзакции |
729
|
|
|
* |
730
|
|
|
* Это - низкоуровневая функция. В нормальном состоянии движка её сообщения никогда не будут видны |
731
|
|
|
* |
732
|
|
|
* @param null|true|false $status Должна ли быть запущена транзакция в момент проверки |
733
|
|
|
* <p>null - транзакция НЕ должна быть запущена</p> |
734
|
|
|
* <p>true - транзакция должна быть запущена - для совместимости с $for_update</p> |
735
|
|
|
* <p>false - всё равно - для совместимости с $for_update</p> |
736
|
|
|
* |
737
|
|
|
* @return bool Текущий статус транзакции |
738
|
|
|
*/ |
739
|
|
|
public static function db_transaction_check($status = self::DB_TRANSACTION_WHATEVER) { |
740
|
|
|
$error_msg = false; |
741
|
|
|
if ($status && !self::$db_in_transaction) { |
742
|
|
|
$error_msg = 'No transaction started for current operation'; |
743
|
|
|
} elseif ($status === null && self::$db_in_transaction) { |
744
|
|
|
$error_msg = 'Transaction is already started'; |
745
|
|
|
} |
746
|
|
|
|
747
|
|
|
if ($error_msg) { |
748
|
|
|
// TODO - Убрать позже |
749
|
|
|
print('<h1>СООБЩИТЕ ЭТО АДМИНУ: sn_db_transaction_check() - ' . $error_msg . '</h1>'); |
750
|
|
|
$backtrace = debug_backtrace(); |
751
|
|
|
array_shift($backtrace); |
752
|
|
|
pdump($backtrace); |
753
|
|
|
die($error_msg); |
|
|
|
|
754
|
|
|
} |
755
|
|
|
|
756
|
|
|
return self::$db_in_transaction; |
757
|
|
|
} |
758
|
|
|
|
759
|
|
|
/** |
760
|
|
|
* Lock specified records in specified tables |
761
|
|
|
* |
762
|
|
|
* @param array[] $locks ['$tableName' => [$idToLock, ...],], |
763
|
|
|
* |
764
|
|
|
* @return array|bool|mysqli_result|null |
765
|
|
|
*/ |
766
|
|
|
public function lockRecords($locks) { |
767
|
|
|
// Reordering lock order for known tables |
768
|
|
|
$newLocks = []; |
769
|
|
|
foreach (self::TABLE_LOCK_ORDER as $tableName) { |
770
|
|
|
if (array_key_exists($tableName, $locks)) { |
771
|
|
|
$newLocks[$tableName] = $locks[$tableName]; |
772
|
|
|
unset($locks[$tableName]); |
773
|
|
|
} |
774
|
|
|
} |
775
|
|
|
// Adding tables left - their lock order is not important |
776
|
|
|
$newLocks += $locks; |
777
|
|
|
|
778
|
|
|
// Compiling SQL queries to lock records |
779
|
|
|
$queries = []; |
780
|
|
|
foreach ($newLocks as $tableName => $lockedIds) { |
781
|
|
|
if (!empty($lockedIds)) { |
782
|
|
|
// Detecting primary key name |
783
|
|
|
$idFieldName = !empty(static::TABLE_ID_FIELD[$tableName]) ? static::TABLE_ID_FIELD[$tableName] : 'id'; |
784
|
|
|
// Making ID mysql-safe |
785
|
|
|
array_walk($lockedIds, function (&$id) { $id = idval($id); }); |
786
|
|
|
/** @noinspection SqlResolve */ |
787
|
|
|
$queries[] = "(SELECT 1 FROM `{{{$tableName}}}` WHERE `{$idFieldName}` IN (" . implode(',', $lockedIds) . ") FOR UPDATE)"; |
788
|
|
|
} |
789
|
|
|
} |
790
|
|
|
|
791
|
|
|
// return !empty($query) ? doquery(implode(' UNION ', $query)) : false; |
792
|
|
|
foreach ($queries as $query) { |
793
|
|
|
doquery($query); |
|
|
|
|
794
|
|
|
} |
795
|
|
|
|
796
|
|
|
return true; |
797
|
|
|
} |
798
|
|
|
|
799
|
|
|
} |
800
|
|
|
|
This check looks for parameters that have been defined for a function or method, but which are not used in the method body.